JP6987706B2 - Bonding belt forming device and joining belt forming method - Google Patents

Description

In the present invention, a tubular belt sleeve whose outer peripheral side is connected by a reinforcing cloth is cut in the circumferential direction in a state where a plurality of annular rubber belt portions including a rubber layer are arranged in parallel, and the plurality of rubber belt portions are joined. The present invention relates to a coupling belt forming apparatus for cutting out and forming a coupling belt in a state, and a coupling belt forming method.

Conventionally, as a transmission belt for transmitting power, a belt configured as an annular belt including a rubber layer such as a V-belt, a V-ribbed belt, and a flat belt and transmitting power by friction is widely known. For example, the V-belt is configured as an annular transmission belt with a V-shaped cross section. As the V-belt, a wrapped V-belt and a low-edge V-belt are used. The wrapped V-belt is configured as a V-belt in which the entire peripheral surface of the belt body is covered with an outer skin cloth over the entire length in the circumferential direction of the belt. On the other hand, the low-edge V-belt is configured as a V-belt in a state where the rubber layer on the side surface that transmits power by friction is exposed.

V-belts such as wrapped V-belts or low-edge V-belts, V-ribbed belts, transmission belts such as flat belts, etc. are used properly according to the application due to differences in the surface texture or cross-sectional shape of the friction transmission surface. In the case of the above-mentioned application in which power can be transmitted by the transmission belt alone, only one transmission belt is used. On the other hand, in the case of an application having a large transmission power, such as an application for a crusher or a large compressor, it is necessary to use a plurality of the above transmission belts at the same time. That is, it is necessary to wind a plurality of transmission belts around a pulley or the like of a rotating device in a state where they are arranged in parallel, and use the plurality of transmission belts at the same time.

However, when a plurality of transmission belts are wound around a pulley or the like of a rotating device and a plurality of transmission belts are used at the same time, a tension difference may occur between the transmission belts and stable power transmission may be impaired. Further, contact occurs between adjacent transmission belts, and the contact may cause a problem of overturning in which the inner peripheral side and the outer peripheral side of the transmission belt are turned upside down and reversed. There is.

Therefore, in the case of an application in which the power to be transmitted is large, a coupling belt composed of a plurality of annular rubber belt portions having the same or corresponding configurations as the above transmission belt is used. This coupling belt is configured as a belt in which the plurality of rubber belt portions are arranged in parallel and the outer peripheral sides of the plurality of rubber belt portions are connected by a reinforcing cloth and bonded.

In the manufacture of the above-mentioned coupling belt, first, a tubular belt sleeve is manufactured in which a plurality of annular rubber belt portions including rubber layers are arranged in parallel and the outer peripheral side is connected by a reinforcing cloth. Then, the belt sleeve is cut in the circumferential direction, and the connecting belt in a state where the plurality of rubber belt portions are connected is cut out and formed. As a result, the coupling belt is manufactured.

Here, a method for manufacturing the coupling belt will be further described by taking as an example the case where the rubber belt portion is a coupling belt having the same or corresponding configuration as the wrapped V belt. In this case, in the above-mentioned production of the belt sleeve, first, the manufacturing process of the wrapped V-belt is carried out halfway. Patent Document 1 discloses a method for manufacturing a wrapped V-belt. In the manufacturing method disclosed in Patent Document 1, the wrapped V-belt is manufactured by sequentially performing the following steps A, B, and C.

In the above step A, first, the unvulcanized rubber sheet made of the compressed rubber layer, the core wire, and the unvulcanized rubber sheet made of the stretchable rubber layer are sequentially laminated on the outer peripheral surface of the cylindrical drum. It is attached and formed into a tubular shape. As a result, a tubular unvulcanized sleeve having an unvulcanized rubber layer and a core wire is formed. Then, in step A, the created unvulcanized sleeve is cut in the circumferential direction while being wound around the entire circumference of the outer circumference of the cylindrical drum. As a result, an annular unvulcanized rubber belt is formed. Further, in step A, the unvulcanized rubber belt is removed from the drum, and both side surfaces of the unvulcanized rubber belt are cut (skipped) at a predetermined angle. As a result, the cross-sectional shape of the unvulcanized rubber belt is formed so as to have a V-shaped cross section. Then, the unvulcanized rubber belt having a V-shaped cross section is subjected to a cover winding treatment in which the periphery thereof is covered with an outer cover to form an unvulcanized belt molded body.

In the production of the belt sleeve from which the bonding belt is cut out, the above-mentioned unvulcanized belt molded body is used. In the method for manufacturing a wrapped V-belt of Patent Document 1, the unvulcanized belt molded body is inserted into the concave groove of the ring mold in the step B following the step A. Then, in a state where a cylindrical rubber sleeve is fitted on the outer peripheral surface of the ring mold and the unvulcanized belt molded body, they are stored in a vulcanization can, and vulcanization is performed under conditions such as a predetermined temperature. This produces a vulcanization belt. In the final step C, the generated vulcanization belt is removed from the ring mold. By completing the process up to step C, the wrapped V-belt is manufactured.

On the other hand, in the production of a belt sleeve which is a material formed by cutting out a connecting belt, first, a plurality of unvulcanized belt molded bodies are arranged in parallel and a groove having a V-shaped cross section is formed. It is fitted into each of the grooves of a plurality of molds. Then, the outer peripheral side of the plurality of unvulcanized belt molded bodies fitted in the mold in the parallel state is covered with the reinforcing cloth. The reinforcing cloth is impregnated with unvulcanized rubber. A plurality of unvulcanized belt molded bodies are fitted on the outer periphery of the mold, and the outer periphery is covered with a reinforcing cloth. Vulcanization is performed under conditions such as temperature. After vulcanization, the rubber sleeve and the mold are disassembled, and the belt sleeve, which is the vulcanized object, is taken out. As a result, a tubular belt sleeve is manufactured in which a plurality of annular rubber belt portions are arranged in parallel and the outer peripheral side is connected by a reinforcing cloth.

When the above-mentioned belt sleeve is manufactured, the belt sleeve is cut in the circumferential direction, and a connecting belt in a state where a plurality of rubber belt portions are connected is cut out and formed. This completes the production of the coupling belt.

Special Publication No. 63-236630

When the coupling belt is formed, a tubular belt sleeve whose outer peripheral side is connected by a reinforcing cloth is cut in the circumferential direction in a state where a plurality of annular rubber belt portions including rubber layers are arranged in parallel. As a result, a coupling belt in which a plurality of rubber belt portions are coupled is cut out and formed. Then, when the connecting belt is cut out from the belt sleeve and formed, the belt sleeve is cut while the belt sleeve is wound around the outer circumference of a rotating body such as a cylindrical drum. At this time, a rotary blade provided with a blade on the outer periphery is pressed against the belt sleeve that rotates together with the rotating body while rotating, and the belt sleeve is cut in the circumferential direction.

FIG. 1 is a cross-sectional view showing a part of the belt sleeve 200, and is a view showing a part of the cross section of the tubular belt sleeve 200 parallel to the axial direction. As shown in FIG. 1, the outer peripheral side of the belt sleeve 200 is connected by a reinforcing cloth 202 in a state where a plurality of annular rubber belt portions 201 are arranged in parallel. In the belt sleeve 200, the plurality of rubber belt portions 201 are connected by the reinforcing cloth 202 in a state where the rubber belt portions 201 are adjacent to each other with a distance of dimension d. Note that FIG. 1 illustrates a case where each rubber belt portion 201 in the belt sleeve 200 has a configuration similar to or corresponding to that of the wrapped V-belt. Therefore, each rubber belt portion 201 includes a compressed rubber layer 201a, an stretched rubber layer 201b, a core wire 201c, and an outer cover 201d.

FIG. 2 is a cross-sectional view showing a part of the conventional coupling belt 203, and is a diagram showing a part of the cross section parallel to the width direction of the annular coupling belt 203. The width direction of the coupling belt 203 corresponds to the direction parallel to the axial direction of the belt sleeve 200. By cutting the belt sleeve 200 in the circumferential direction, the connecting belt 203 as shown in FIG. 2 is cut out and formed. Note that FIG. 2 illustrates a case where the connecting belt 203 in a state where the two rubber belt portions 201 are connected is cut out from the belt sleeve 200 and formed.

When the connecting belt 203 is cut out from the belt sleeve 200 and formed, the reinforcing cloth 202 of the belt sleeve 200 is cut in the circumferential direction at the cutting line 204 shown by the broken line in FIG. That is, the belt sleeve 200 is wound around the outer circumference of a rotating body such as a cylindrical drum and is rotated together with the rotating body, and the rotary blade provided with a blade on the outer circumference is pressed while rotating along the cutting line 204. And is cut in the circumferential direction.

The cutting line 204 for cutting the portion of the reinforcing cloth 202 between the adjacent rubber belt portions 201 is set, for example, at an intermediate position between the adjacent rubber belt portions 201. Therefore, as shown in FIG. 2, in the coupling belt 203 cut out from the belt sleeve 200 by the rotary blade, the width of the annular coupling belt 203 is the width of the dimension α from the rubber belt portion 201 at the edge portions on both sides in the width direction. A protruding portion 202a that protrudes to the outside will be generated. That is, a protruding portion 202a, which is a portion of the reinforcing cloth 202 protruding outward with a width of a dimension α (dimension about d / 2) that is about half of the dimension d of the interval between the adjacent rubber belt portions 201, is generated. When the cutting line 204 is set at a position other than the intermediate position of the adjacent rubber belts 201 in the portion of the reinforcing cloth 202 between the adjacent rubber belt portions 201, the cutting line 204 is set to any of the adjacent rubber belts 201. The position is close to one side. In this case, at one of the edge portions on both sides of the annular connecting belt 203 in the width direction, a protruding portion 202a that protrudes with a width larger than the dimension α will be generated.

When an excessive protrusion 202a having a dimension α or more of about half the dimension d of the distance between the rubber belt portions 201 is generated at at least one of the edge portions on both sides of the coupling belt 203 in the width direction, the coupling belt 203 is formed. There is a risk of causing a decrease in bending performance. Further, when a plurality of coupling belts are wound around a pulley or the like of a rotating device and used at the same time, there is a high possibility that the protruding portions 202a will come into contact with each other between the adjacent coupling belts. In this case, due to the contact, the runout of the coupling belt during running becomes large, and there is a possibility that the inner peripheral side and the outer peripheral side of the coupling belt may be turned upside down and inverted, causing a problem of overturning. be.

On the other hand, by cutting out the coupling belt 203 from the belt sleeve 200 to form the coupling belt 203 and then removing the protruding portion 202a, it is possible to suppress the occurrence of the above-mentioned problems. However, if the work of removing the protruding portion 202a is performed after the coupling belt 203 is formed, the work man-hours will be significantly increased, and the workability will be deteriorated. Therefore, it is desired to realize a technique that can suppress the deterioration of workability and easily suppress the generation of the protruding portion 202a at the edge portion in the width direction of the coupling belt 203.

The present invention has been made in view of the above circumstances, and an object of the present invention is to suppress a decrease in workability, and to easily generate protruding portions at both edge portions in the width direction of the connecting belt. It is to provide a coupling belt forming apparatus and a coupling belt forming method that can be suppressed.

(1) In the coupling belt forming apparatus according to a certain aspect of the present invention for achieving the above object, a plurality of annular rubber belt portions including a rubber layer are connected in parallel on the outer peripheral side with a reinforcing cloth. The present invention relates to a coupling belt forming apparatus for cutting a tubular belt sleeve in the circumferential direction and cutting out a coupling belt in a state where a plurality of the rubber belt portions are coupled. The coupling belt forming apparatus according to a certain aspect of the present invention has a rotating body that rotates about an axis, and the rotating body is in a state where the belt sleeve is wound around at least a part of the outer periphery of the rotating body. Has a sleeve traveling mechanism for rotating the belt sleeve in the circumferential direction and a pair of wires, and tension is applied to each of the pair of the wires, and the portion to which the tension is applied is along a linear direction. The belt sleeve is pushed in the circumferential direction by pressing the pair of traveling wires between the adjacent rubber belt portions against the wire traveling mechanism for traveling in parallel with each other and the reinforcing cloth of the traveling belt sleeve. It is provided with a cutting mechanism for cutting and forming the connecting belt.

According to this configuration, the sleeve traveling mechanism, the wire traveling mechanism, and the cutting mechanism are operated, and the belt sleeve is cut in the circumferential direction to form a connecting belt. Then, according to the above configuration, the pair of wires traveling parallel to each other along the linear direction which is the longitudinal direction of the tensioned portion of each of the pair of wires is pressed against the belt sleeve traveling in the circumferential direction. This cuts the belt sleeve. Therefore, when cutting the belt sleeve, the distance (distance) between the pair of traveling wires pressed against the belt sleeve is set to a predetermined dimension corresponding to the dimension of the distance between the adjacent rubber belt portions. In addition, the portion of the reinforcing cloth between the adjacent rubber belt portions can be easily cut off. As a result, it is possible to easily suppress the occurrence of protruding portions at the edge portions on both sides in the width direction of the coupling belt.

In addition, by pressing a pair of traveling wires against the reinforcing cloth of the traveling belt sleeve and cutting the belt sleeve in the circumferential direction, the coupling belt in a state where the protruding portions at the edges on both sides in the width direction of the coupling belt are cut off. Can be easily formed. Therefore, it is not necessary to remove the protruding portion after the connecting belt is cut out from the belt sleeve to form the connecting belt, and it is possible to suppress the deterioration of workability.

Therefore, according to the above configuration, it is possible to provide a coupling belt forming apparatus capable of suppressing a decrease in workability and easily suppressing the occurrence of protruding portions at both edge portions in the width direction of the coupling belt. can.

Conventionally, when the connecting belt is cut out from the belt sleeve and formed, the belt sleeve is cut in the circumferential direction by being pressed while rotating by a rotary blade provided with a blade on the outer periphery. .. As described above, conventionally, since the rotary blade is used for cutting the reinforcing cloth of the belt sleeve, the contact area between the rotary blade and the reinforcing cloth to be cut is large, and a large temperature rise occurs due to frictional heat during cutting. The coupling belt becomes hot. On the other hand, from the viewpoint of suppressing the temperature rise due to frictional heat during cutting, it is conceivable to apply cooling water to the rotary blade during cutting to cool the blade. However, in that case, a cooling facility for cooling the rotary blade being cut by applying cooling water is required. Further, when a cooling facility using water is required, it is necessary to construct a water supply system for supplying water to the cooling facility in addition to the construction of the facility itself. This leads to an increase in the types and number of equipment required to form the coupling belt from the belt sleeve.

However, according to the above configuration, when the reinforcing cloth of the belt sleeve is cut, the wire traveling in a linear direction (that is, in the longitudinal direction of the tensioned portion) is used instead of the rotary blade having a blade on the outer periphery. , The reinforcing cloth is cut. Therefore, the contact area between the reinforcing cloth to be cut in the belt sleeve and the wire as a cutting tool can be made extremely small as compared with the case where the cutting tool is a rotary blade. As a result, it is possible to significantly suppress the temperature rise due to frictional heat during cutting of the belt sleeve. Further, since the temperature rise due to frictional heat during cutting of the belt sleeve can be significantly suppressed, a cooling facility using water at the time of cutting becomes unnecessary. Therefore, it is possible to suppress an increase in the type and number of equipment required when forming a connecting belt from a belt sleeve.

(2) The sleeve traveling mechanism has a plurality of the rotating bodies, and among the plurality of the rotating bodies, the belt sleeve is wound around a part of the outer periphery of each of the plurality of the rotating bodies. At least one of the rotating bodies may be rotationally driven to allow the belt sleeve to travel in the circumferential direction.

According to this configuration, it is possible to run the belt sleeve in the circumferential direction so as to rotate the belt sleeve in a state where the belt sleeve is wound around a plurality of rotating bodies. Therefore, even when the peripheral length of the belt sleeve is relatively long (the peripheral length is long), the sleeve traveling mechanism having a plurality of rotating bodies having a smaller diameter than the diameter of the tubular belt sleeve allows the belt sleeve to travel. The belt sleeve can be easily run in the circumferential direction.

Further, according to the above configuration, even when the circumferential length of the belt sleeve is relatively long, the belt sleeve is made to run along the outer circumference of the rotating body having a small diameter, and a pair of wires running on the running belt sleeve. Can be pressed to cut the belt sleeve. Therefore, a pair of wires can be pressed against the belt sleeve in the vicinity of a rotating body having a small radius of curvature to cut the belt sleeve. Therefore, the contact area between the reinforcing cloth to be cut in the belt sleeve and the wire as a cutting tool can be further reduced, and the temperature rise due to frictional heat during cutting of the belt sleeve can be further suppressed.

(3) The sleeve traveling mechanism has a pair of the rotating bodies as the plurality of the rotating bodies, one of the pair of the rotating bodies is configured as a drive roll driven to rotate, and the pair of the rotating bodies. The other of the two may be configured as a driven roll that rotates with the running of the belt sleeve that runs in the circumferential direction with the rotation of the driving roll.

According to this configuration, a structure in which a belt sleeve is wound around a plurality of rotating bodies and travels in the circumferential direction so as to rotate the belt sleeve is simplified by using a pair of rotating bodies composed of a drive roll and a driven roll. It can be realized with a simple structure.

(4) The wire traveling mechanism has a pair of wire holding portions for holding each of the pair of the wires, and each of the pair of the wire holding portions is a portion on both ends of one continuous wire. Have a pair of rotating bobbins that are wound and rotated synchronously, and the wire traveling mechanism applies tension to the wire between the pair of rotating bobbins at each of the pair of wire holding portions. Then, by paying out the wire from one of the pair of the rotating bobbins and winding the wire at the other of the pair of the rotating bobbins, tension in the wire is applied between the pair of the rotating bobbins. The cut portion may be run along the straight direction.

According to this configuration, in each of the pair of wire holding portions, the tension of the wire is easily applied to the wire by winding the wire from one of the pair of rotating bobbins that rotate synchronously while paying out the wire to the other. It is possible to run the portion to which the above is applied along the straight line direction. Then, according to the above configuration, the belt sleeve can be cut while the long wire is discharged from one of the pair of rotating bobbins and wound on the other. Therefore, when cutting the reinforcing cloth of the belt sleeve, different parts of the long wire can be continuously used in order without intensively using the same part of the wire. As a result, the time for each portion of the wire to be used for cutting is extremely short, and the cooling time of the wire due to heat dissipation after cutting can be secured sufficiently long. As a result, it is possible to efficiently suppress the accumulation of heat on the wire, and it is possible to further suppress the temperature rise due to frictional heat during cutting of the belt sleeve.

(5) The wire traveling mechanism may have a plurality of wire holding unit units having a pair of the wire holding portions.

According to this configuration, the work of cutting the belt sleeve in the circumferential direction and cutting out and forming the connecting belt can be performed simultaneously at a plurality of places by the plurality of wire holding unit units. Therefore, the efficiency of the work of cutting the belt sleeve in the circumferential direction to form an annular connecting belt can be further improved.

(6) The pair of rotary bobbins may be reciprocated along a linear direction by repeating rotation while alternately reversing the rotational directions of synchronous rotation. good.

According to this configuration, by repeating the rotation while alternately reversing the rotation direction in which the pair of rotating bobbins rotate synchronously, the belt sleeve cutting work is made efficient by using the long wire while continuously reciprocating. Can be done well. In addition, since a long wire can be repeatedly reciprocated to cut the belt sleeve, the time required for each part of the wire to be cut is extremely short, and the wire is cooled by heat dissipation after cutting. It is possible to efficiently carry out the cutting work of the belt sleeve while securing a sufficiently long time. As a result, it is possible to efficiently suppress the accumulation of heat on the wire, and while further suppressing the temperature rise due to frictional heat during cutting of the belt sleeve, the belt sleeve cutting work is continuously carried out for a long period of time. be able to.

(7) The cutting mechanism may press the pair of wires traveling along the tangential direction of the outer circumference of the rotating body against the belt sleeve traveling along the outer circumference of the rotating body. good.

According to this configuration, a wire traveling along the tangential direction of the outer circumference of the rotating body is pressed against the belt sleeve traveling along the outer circumference of the rotating body, so that the belt sleeve travels in a curved manner. The cutting work with a wire can be performed efficiently and easily in the portion. That is, the belt sleeve that travels curved along the outer circumference of the rotating body can be efficiently and easily cut by the wire that travels in a straight line along the tangential direction of the curved portion of the belt sleeve.

(8) In the method for forming a coupling belt according to a certain aspect of the present invention for achieving the above object, a plurality of annular rubber belt portions including a rubber layer are connected in parallel on the outer peripheral side with a reinforcing cloth. The present invention relates to a method for forming a coupling belt, which comprises cutting a tubular belt sleeve in the circumferential direction and cutting out a coupling belt in a state where a plurality of the rubber belt portions are coupled. Then, in the method for forming a coupling belt according to a certain aspect of the present invention, the rotating body is rotated in a state where the belt sleeve is wound around at least a part of the outer periphery of the rotating body rotating around the axis, and the belt sleeve is formed. A sleeve running process in which the belt sleeve is run in the circumferential direction, a wire running step in which tension is applied to each of the pair of wires and the tensioned portions are run in parallel with each other along the linear direction, and the running belt sleeve. The belt sleeve is cut in the circumferential direction by pressing a pair of traveling wires against the reinforcing cloth of the above, and a cutting step of forming the connecting belt is provided. ing.

According to this configuration, a sleeve traveling process, a wire traveling process, and a cutting process are performed, and the belt sleeve is cut in the circumferential direction to form a coupling belt. Then, according to the above configuration, the pair of wires traveling parallel to each other along the linear direction which is the longitudinal direction of the tensioned portion of each of the pair of wires is pressed against the belt sleeve traveling in the circumferential direction. This cuts the belt sleeve. Therefore, by setting the distance (distance) between the pair of traveling wires pressed against the belt sleeve to a predetermined dimension corresponding to the dimension of the distance between the adjacent rubber belt portions, the belt sleeve can be cut. , The portion of the reinforcing cloth between the adjacent rubber belt portions can be easily cut off. As a result, it is possible to easily suppress the occurrence of protruding portions at the edge portions on both sides in the width direction of the coupling belt.

In addition, by pressing a pair of traveling wires against the reinforcing cloth of the traveling belt sleeve and cutting the belt sleeve in the circumferential direction, the coupling belt in a state where the protruding portions at the edges on both sides in the width direction of the coupling belt are cut off. Can be easily formed. Therefore, it is not necessary to remove the protruding portion after the connecting belt is cut out from the belt sleeve to form the connecting belt, and it is possible to suppress the deterioration of workability.

Therefore, according to the above configuration, it is possible to provide a coupling belt forming method capable of suppressing a decrease in workability and easily suppressing the occurrence of protruding portions at both edge portions in the width direction of the coupling belt. can.

Further, according to the above configuration, when the reinforcing cloth of the belt sleeve is cut, the wire traveling in the linear direction (that is, in the longitudinal direction of the tensioned portion) is used instead of the rotary blade provided with the blade on the outer periphery. , The reinforcing cloth is cut. Therefore, the contact area between the reinforcing cloth to be cut in the belt sleeve and the wire as a cutting tool can be made extremely small as compared with the case where the cutting tool is a rotary blade. As a result, it is possible to significantly suppress the temperature rise due to frictional heat during cutting of the belt sleeve. Further, since the temperature rise due to frictional heat during cutting of the belt sleeve can be significantly suppressed, a cooling facility using water at the time of cutting becomes unnecessary. Therefore, it is possible to suppress an increase in the type and number of equipment required when forming a connecting belt from a belt sleeve.

According to the present invention, a coupling belt forming apparatus and a coupling belt forming method capable of suppressing a decrease in workability and easily suppressing the occurrence of protruding portions at both edge portions in the width direction of the coupling belt. Can be provided.

It is sectional drawing which shows the part of the belt sleeve, and is the figure which shows the part of the cross section parallel to the axial direction in a tubular belt sleeve. It is sectional drawing which shows the part of the conventional coupling belt, and is the figure which shows the part of the cross section parallel to the width direction of an annular coupling belt. It is a perspective view which shows a part of a coupling belt. It is a perspective view which shows a part of the coupling belt, and is the figure which shows the part in a cross section. It is a chart diagram which shows the whole manufacturing process of a coupling belt. It is a perspective view which shows the belt sleeve. It is a front view which shows the coupling belt forming apparatus which concerns on one Embodiment of this invention. It is a top view of the coupling belt forming apparatus. It is a figure which saw the coupling belt forming apparatus from the side, and is the figure which shows a part of the coupling belt forming apparatus in a notched state. FIG. 7 is an enlarged view showing a part of the coupling belt forming apparatus shown in FIG. 7. It is a figure which shows the part of the coupling belt forming apparatus shown in FIG. 8 in an enlarged manner. It is a figure for demonstrating operation of a coupling belt forming apparatus. It is a figure for demonstrating operation of a coupling belt forming apparatus. It is a figure for demonstrating the operation of the coupling belt forming apparatus, and is the figure which shows typically the wire holding part unit and its vicinity. It is a figure for demonstrating the operation of the coupling belt forming apparatus, and is the figure which shows typically the wire holding part unit and its vicinity. It is sectional drawing which shows the part of the belt sleeve, and is the figure which shows the part of the cross section parallel to the axial direction in a tubular belt sleeve. It is sectional drawing which shows the part of the joint belt, and is the figure which shows the part of the cross section parallel to the width direction of the annular joint belt. It is a chart figure which shows the coupling belt forming method which concerns on one Embodiment of this invention. It is a figure which shows the state which the belt sleeve is cut in the circumferential direction over the whole width by the coupling belt forming apparatus, and a plurality of coupling belts are formed. It is a figure which shows the implementation condition and the implementation result, etc. about the Example of this invention in a list. It is a figure which shows the image of the SEM photograph which photographed the surface of the wire which is the wire which concerns on Example, and the diamond abrasive grain was fixed to the core wire by electrodeposition. It is a figure for demonstrating the coupling belt forming apparatus which concerns on a modification. It is a figure for demonstrating the coupling belt forming apparatus which concerns on a modification. It is a figure for demonstrating the coupling belt forming apparatus which concerns on a modification. It is a figure for demonstrating the wire traveling mechanism of the coupling belt forming apparatus which concerns on a modification.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following description, first, the outline of the coupling belt and the outline of the entire manufacturing process of the coupling belt will be described, and then the coupling belt forming apparatus and the coupling according to the embodiment of the present invention applied to the production of the coupling belt will be described. The belt forming method will be described.

[Outline of coupling belt]
FIG. 3 is a perspective view showing a part of the coupling belt 100. FIG. 4 is a perspective view showing a part of the coupling belt 100, and is a view showing a part in a cross section. The coupling belt 100 is used as an endless belt for power transmission in various machines having a large power transmission such as a crusher or a large compressor. 3 and 4 show an example of a coupling belt 100 configured as a coupling V-belt having a plurality of annular rubber belt portions 101 having a V-shaped cross section. In the following description, the coupling belt 100 is also referred to as a coupling V-belt 100.

In FIG. 4, a cross section perpendicular to the circumferential direction of the coupled V-belt 100 extending in an annular shape is shown. Further, in FIG. 4, the circumferential direction of the coupled V-belt 100 is indicated by the arrow A at both ends, and the width direction orthogonal to the circumferential direction (the width direction of the coupled V-belt 100) is indicated by the arrow B at both ends. Has been done.

The bonded V-belt 100 includes a plurality of annular rubber belt portions 101 including a rubber layer, and a reinforcing cloth 102. The coupled V-belt 100 is configured as a belt in which a plurality of annular rubber belt portions 101 are arranged in parallel and the outer peripheral side is connected by a reinforcing cloth 102. The coupled V-belt 100 is configured as a belt in which a plurality of rubber belt portions 101 are connected by being connected by a reinforcing cloth 102. In addition, in FIGS. 3 and 4, the form of the coupled V-belt 100 in which the two annular rubber belt portions 101 are arranged side by side and the outer peripheral side is connected by the reinforcing cloth 102 is illustrated. In FIGS. 3 and 4, two rubber belt portions 101 are connected by a reinforcing cloth 102 to exemplify a coupling belt, but the coupling belt forming apparatus and the coupling belt forming method of the present embodiment are applied to the coupling. The type of belt does not have to be this way. For example, the coupling belt forming apparatus and the coupling belt forming method of the present embodiment may be applied to a coupling belt in which three or more rubber belt portions are connected and joined by a reinforcing cloth.

The two rubber belt portions 101 of the coupled V-belt 100 are similarly configured. Each rubber belt portion 101 includes a compressed rubber layer 103 and an stretched rubber layer 104 as rubber layers, a core wire 105, and an outer cover 106. Note that FIG. 4 illustrates a form in which the rubber belt portion 101 has a configuration similar to or corresponding to that of the wrapped V-belt. FIG. 4 illustrates a form in which the rubber belt portion 101 has a configuration similar to or corresponding to that of the wrapped V-belt, but the coupling belt forming apparatus and the coupling belt forming method of the present embodiment are applied. The type of coupling belt does not have to be this way. For example, the coupling belt forming apparatus and the coupling belt forming method of the present embodiment may be applied to a coupling belt in which the rubber belt portion has a configuration similar to or corresponding to that of a transmission belt other than the wrapped V-belt. ..

The main body portion of the rubber belt portion 101 provided in an annular shape has a laminated structure, and the compressed rubber layer 103, the core wire 105, and the stretched rubber layer 104 are formed from the inner peripheral side to the outer peripheral side of the rubber belt portion 101. They are stacked sequentially. Therefore, in the rubber belt portion 101, the core wire 105 is embedded between the compressed rubber layer 103 and the stretched rubber layer 104. The core wire 105 is arranged so as to extend along the circumferential direction of the rubber belt portion 101. The core wires 105 are arranged at predetermined intervals along the width direction of the rubber belt portion 101 in a cross section perpendicular to the circumferential direction of the rubber belt portion 101. The circumferential direction of the rubber belt portion 101 is the same as the circumferential direction of the coupled V-belt 100, and the width direction of the rubber belt portion 101 is the same direction as the width direction of the coupled V-belt 100.

Further, the rubber belt portion 101 is configured such that the entire peripheral surface of the endless main body portion provided in an annular shape is covered with the outer cover 106 over the entire length in the circumferential direction. The shape of the cross section of the rubber belt portion 101 perpendicular to the circumferential direction is a V-shaped cross section. More specifically, the cross-sectional shape of the rubber belt portion 101 is configured to be a trapezoidal shape in which the dimension in the width direction decreases from the outer peripheral side to the inner peripheral side of the rubber belt portion 101.

The reinforcing cloth 102 is provided as a back cloth that integrally joins a plurality of rubber belt portions 101 on the back side, which is the outer peripheral side of the coupling V-belt 100. In the bonded V-belt 100, the reinforcing cloth 102 is provided so that the plurality of rubber belt portions 101 can exhibit the strength as an integral belt element. Further, the reinforcing cloth 102 is configured as an annular cloth portion, and is integrally connected to the outer peripheral side portion of the outer skin cloth 105 of each rubber belt portion 101. As a result, the reinforcing cloth 102 connects and connects a plurality of annular rubber belt portions 101 arranged in parallel on the outer peripheral side thereof.

[Outline of manufacturing process of coupling belt]
FIG. 5 is a chart showing the entire manufacturing process of the coupling belt 100 (coupling V-belt 100). As shown in FIG. 5, the manufacturing process of the bonded V-belt 100 includes an unvulcanized sleeve forming step S101, an unvulcanized rubber belt forming step S102, a skive step S103, a cover winding step S104, a belt sleeve forming step S105, and a bonded belt forming. It is configured to include step S106.

The unvulcanized sleeve forming step S101 is configured as a step of forming a tubular unvulcanized sleeve having an unvulcanized rubber layer and a core wire. In the unvulcanized sleeve forming step S101, first, a sheet of unvulcanized rubber (that is, rubber in a state where vulcanization has not been performed) is formed by rolling. Then, the unvulcanized rubber sheet formed by rolling is cut to a predetermined length. The unvulcanized rubber sheet cut to a predetermined length is wound around a rotating drum configured as a winding mold provided in a cylindrical or columnar shape and rotatably supported. The unvulcanized rubber sheet wound around the outer circumference of the rotary drum is formed into a cylindrical shape by joining the ends thereof. The unvulcanized rubber sheet formed into a tubular shape serves as a material for the compressed rubber layer 103 in each rubber belt portion 101 of the bonded V-belt 100.

Then, when a tubular unvulcanized rubber molded body is formed on the outer periphery of the rotary drum, the above-mentioned core wire 105 is then wound along the circumferential direction. The core wire 105 is wound around a cylindrical unvulcanized rubber molded body in a spiral shape along the circumferential direction while being displaced at a predetermined pitch along the width direction. The width direction of the tubular unvulcanized rubber molded body is configured as a direction parallel to the axial direction of the rotary drum. The core wire 105 is wound around a cylindrical unvulcanized rubber molded body over almost the entire length in the width direction.

When the winding of the core wire 105 around the outer periphery of the tubular unvulcanized rubber molded body is completed, then the sheet of the unvulcanized rubber formed by rolling is wound from above the core wire 105. The unvulcanized rubber sheet wound from above the core wire 105 is formed into a cylindrical shape by joining the ends thereof. A tubular unvulcanized rubber sheet wound around the outer peripheral side of the core wire 105 serves as a material for the stretchable rubber layer 104 in each rubber belt portion 101 of the bonded V-belt 100.

The rubber components constituting the layers of the unvulcanized rubber on the inner peripheral side and the outer peripheral side of the unvulcanized sleeve include vulcanized or crosslinkable rubber, for example, diene rubber (natural rubber, isoprene rubber, butadiene rubber). , Chloroprene rubber, styrene butadiene rubber, acrylonitrile butadiene rubber (nitrile rubber), hydride nitrile rubber, etc.), ethylene-α-olefin elastomer, chlorosulphonized polyethylene rubber, alkylated chlorosulphonized polyethylene rubber, epichlorohydrin rubber, acrylic rubber , Silicone rubber, urethane rubber, fluororubber, etc. can be exemplified, and these rubber components can be used alone or in combination of two or more. Preferred rubber components are ethylene-α-olefin elastomer (ethylene-α-olefin rubber such as ethylene-propylene rubber (EPR) and ethylene-propylene-diene monomer (EPDM, etc.)) and chloroprene rubber. A particularly preferable rubber component is chloroprene rubber. The chloroprene rubber may be a sulfur-modified type or a non-sulfur-modified type. As the rubber component of the unvulcanized rubber layer on the inner peripheral side and the rubber component of the unvulcanized rubber layer on the outer peripheral side, rubber of the same type or the same type is often used.

As the core wire 105, a twisted cord using a multifilament yarn (for example, various twists, single twist, rung twist, etc.) can be usually used. As the fiber constituting the core wire 105, synthetic fiber such as polyester fiber and aramid fiber, inorganic fiber such as glass fiber and carbon fiber can be used. The surface of the core wire 105 may be subjected to a conventional adhesive treatment (or surface treatment).

After the unvulcanized sleeve is formed by the unvulcanized sleeve forming step S101 described above, the unvulcanized rubber belt forming step S102 is then carried out. The unvulcanized rubber belt forming step S102 is configured as a step of cutting the unvulcanized sleeve in the circumferential direction to form an annular unvulcanized rubber belt. The unvulcanized rubber belt is configured as a rubber belt extending in an annular shape with a rectangular cross section, and the unvulcanized rubber layer, the core wire 105, and the stretched rubber layer 104 of the material of the compressed rubber layer 103 are formed from the inner peripheral side to the outer peripheral side thereof. The unvulcanized rubber layer of the material is sequentially laminated and configured.

The skive step S103 is a step of skiving by cutting both corner portions on the inner peripheral side of both side surfaces of the unvulcanized rubber belt so as to be scraped in the circumferential direction to change the cross-sectional shape of the unvulcanized rubber belt. It is configured. In the skive step S103, both corner portions on the inner peripheral side of the unvulcanized rubber layer on the inner peripheral side of the unvulcanized rubber belt are cut so as to be scraped in the circumferential direction. As a result, the shape of the cross section of the unvulcanized rubber belt, which had a rectangular cross section before the treatment of the skive step S103, is rectangular in the state after the treatment of the skive step S103. The shape of the cross section is a combination of the portion and the trapezoidal portion.

The cover winding step S104 is configured as a step of covering the unvulcanized rubber belt after the treatment of the skiving step S103 with the outer cover 106. In the cover winding step S104, the entire peripheral surface of the annular unvulcanized rubber belt is covered with the outer cover 106 over the entire length in the circumferential direction. As a result, an unvulcanized belt molded body is formed in which the unvulcanized rubber belt is covered with the outer cover 106.

FIG. 6 is a perspective view showing the belt sleeve 107. The belt sleeve forming step S105 is configured as a step of forming a tubular belt sleeve 107 whose outer peripheral side is connected by a reinforcing cloth 102 in a state where a plurality of rubber belt portions 101 are arranged in parallel. Further, the belt sleeve forming step S105 is a step of heating the plastic unvulcanized rubber in the unvulcanized belt molded body formed in the cover winding step S104 to change it into elastic rubber when the belt sleeve 107 is formed. Is also configured.

In the belt sleeve forming step S105, first, a plurality of unvulcanized belt molded bodies formed in the cover winding step S104 are arranged in parallel to form a groove of a mold having a plurality of grooves having a V-shaped cross section. On the other hand, each is fitted. The mold into which a plurality of unvulcanized belt molded bodies are fitted is configured by combining, for example, a cylindrical ring mold that partitions a groove having a V-shaped cross section on the outer periphery.

After the plurality of unvulcanized belt molded bodies are fitted into the mold, the outer peripheral side of the plurality of unvulcanized belt molded bodies fitted into the mold in parallel is covered with the reinforcing cloth 102. The reinforcing cloth 102 and the outer skin cloth 106 of the unvulcanized belt molded body are impregnated with unvulcanized rubber. When a plurality of unvulcanized belt molded bodies are fitted on the outer periphery of the mold and the outer periphery thereof is covered with the reinforcing cloth, a rubber sleeve is further attached to the outer periphery thereof. Then, the structure including the vulcanization target, which is a structure in which the reinforcing cloth 102 is coated on the outer periphery of the mold and the plurality of unvulcanized belt molded bodies and the rubber sleeve is further attached, becomes a vulcanization can. It is stored and vulcanized under conditions such as a predetermined temperature.

When the vulcanization is completed, the rubber sleeve and the mold are disassembled, and the belt sleeve 107, which is the vulcanized object, is taken out. As a result, the tubular belt sleeve 107 whose outer peripheral side is connected by the reinforcing cloth 102 in a state where a plurality of annular rubber belt portions 101 including rubber layers (compressed rubber layer 103, stretched rubber layer 104) are arranged in parallel is formed. It is formed. In the state where vulcanization is completed and the belt sleeve 107 is formed, the unvulcanized rubber of the unvulcanized belt molded body is heated and changed to elastic rubber, and in each rubber belt portion 101, the compressed rubber layer 103. , The stretchable rubber layer 104 is constructed. The outer skin cloth 106 and the reinforcing cloth 102 of each rubber belt portion 101 are integrally bonded to each other by heating the unvulcanized rubber impregnated therein to change into elastic rubber. As a result, in the belt sleeve 107, the plurality of rubber belt portions 101 are connected in a state of being arranged in parallel in the axial direction of the tubular belt sleeve 107.

When the belt sleeve forming step S105 is completed, the coupling belt forming step S106 is carried out. The coupling belt forming step S106 is configured as a step of cutting the belt sleeve 107 in the circumferential direction and cutting out and forming the coupling V-belt 100 in a state where the plurality of rubber belt portions 101 are coupled. The bond belt forming step S106 is configured as the bond belt forming method according to the embodiment of the present invention, and is carried out by using the bond belt forming apparatus according to the embodiment of the present invention. When the bonding belt forming step S106 is completed, the production of the bonding V-belt 100 is completed.

[Outline of coupling belt forming device]
FIG. 7 is a front view showing the coupling belt forming apparatus 1 according to the embodiment of the present invention. FIG. 8 is a plan view of the coupling belt forming device 1. FIG. 9 is a side view of the coupling belt forming apparatus 1 and is a diagram showing a part of the coupling belt forming apparatus 1 in a notched state. By operating the coupling belt forming device 1, the coupling belt forming method according to the embodiment of the present invention is carried out, and the coupling belt forming step S106 in the manufacturing process of the coupling V-belt 100 described above is carried out. ..

The coupling belt forming apparatus 1 shown in FIGS. 7 to 9 has a tubular belt sleeve 107 whose outer peripheral side is connected by a reinforcing cloth 102 in a state where a plurality of annular rubber belt portions 101 including a rubber layer are arranged in parallel. It is configured as a device for cutting and forming a coupled V-belt 100 in a state where a plurality of rubber belt portions 101 are coupled by cutting in the circumferential direction. As shown in FIGS. 7 to 9, the coupling belt forming device 1 includes a sleeve traveling mechanism 11, a wire traveling mechanism 12, a cutting mechanism 13, a control device 14, and the like. In FIG. 9, the wire traveling mechanism 12 and the control device 14 are not shown.

Further, in the present embodiment, the unvulcanized rubber belt forming apparatus 1 further provided with the base 15 is exemplified. In addition, in FIG. 8, the illustration of the base 15 is omitted. The sleeve traveling mechanism 11, the wire traveling mechanism 12, the cutting mechanism 13, and the control device 14 are installed on the base 15. In the present embodiment, the coupling belt forming apparatus 1 provided with the base 15 is exemplified, but the coupling belt forming apparatus 1 having no base 15 may be implemented.

[Sleeve running mechanism]
As shown in FIGS. 7 to 9, the sleeve traveling mechanism 11 includes a drive roll 21, a driven roll 22, a drive unit 23, a support unit (24, 25, 26), and the like. Then, the sleeve traveling mechanism 11 rotates the rotating body with the belt sleeve 107 wound around at least a part of the outer periphery of the rotating body configured as the drive roll 21 and the driven roll 22, and causes the belt sleeve 107. Is configured as a mechanism for traveling in the circumferential direction.

The drive roll 21 includes a rotating shaft 21a, a rotating drum 21b, an outer peripheral sleeve 21c, and the like, and is configured as a rotating body that rotates around an axis (around the rotating shaft 21a). In the following description, the drive roll 21 is also referred to as a rotating body 21.

The rotating shaft 21a is configured as a metal cylindrical or cylindrical shaft. The rotary shaft 21a is rotatably supported on one end side by the drive unit 23 and rotatably on the other end side by the support unit 24. Further, the rotary shaft 21a is configured to be rotationally driven by inputting a drive torque from the drive unit 23 at one end side thereof.

The rotary drum 21b is provided, for example, as a cylindrical or radial structure having a cylindrical portion or a plurality of sleeve support portions arranged along the circumferential direction. The rotating drum 21b is attached to the rotating shaft 21a so as to rotate together with the rotating shaft 21a. For example, the cylindrical portion or the plurality of sleeve support portions of the rotary drum 21b are fixed to the rotary shaft 21a via a plurality of support columns extending in the radial direction. Further, the rotary drum 21b is attached to the rotary shaft 21a so that the rotary center axis of the rotary shaft 21a and the rotary center axis of the rotary drum 21b coincide with each other. The support column portion has a mechanism that operates freely in a hydraulic cylinder mechanism or the like, and supports the cylindrical portion or a plurality of sleeve support portions in the rotary drum 21b so as to be flexibly expandable and contractible in the radial direction. It may be configured.

The outer peripheral sleeve 21c is provided as a rubber cylindrical sleeve and is attached to the outer circumference of the rotary drum 21b. The diameter of the inner circumference of the outer peripheral sleeve 21c is set to a dimension substantially corresponding to the diameter of the outer circumference of the rotary drum 21b. When the rotary drum 21b rotates, the outer peripheral sleeve 21c attached to the rotary drum 21b rotates at the same rotation speed together with the rotary drum 21b. Further, the outer peripheral sleeve 21c is provided with a plurality of grooves having a V-shaped cross section on the surface side of the outer periphery thereof. A plurality of grooves having a V-shaped cross section provided on the outer periphery of the outer peripheral sleeve 21c are provided so as to extend in parallel with each other along the circumferential direction of the outer peripheral sleeve 21c. Each of the plurality of grooves provided on the outer periphery of the outer peripheral sleeve 21c is configured so that each of the plurality of rubber belt portions 101 in the belt sleeve 107 is fitted. Each of the plurality of rubber belt portions 101 in the belt sleeve 107 is fitted into each of the plurality of grooves provided on the outer periphery of the outer peripheral sleeve 21c in the portion on the inner peripheral side thereof.

The belt sleeve 107 is wound around the outer circumference of the drive roll 21 configured by mounting the outer peripheral sleeve 21c on the outer circumference of the rotating drum 21b fixed to the rotating shaft 21a. At this time, the belt sleeve 107 is wound around the outer periphery of the drive roll 21 in a state where each of the plurality of rubber belt portions 101 is fitted into each of the plurality of grooves on the outer periphery of the outer peripheral sleeve 21c. In this embodiment, the belt sleeve 107 is wound around a part of the outer circumference of the drive roll 21. More specifically, the belt sleeve 107 is wound around about half the circumference of the outer circumference of the drive roll 21.

The driven roll 22 includes a rotating shaft 22a, a rotating drum 22b, an outer peripheral sleeve 22c, and the like, and is configured as a rotating body that rotates around an axis (around the rotating shaft 22a). In the following description, the driven roll 22 is also referred to as a rotating body 22.

The rotating shaft 22a is configured as a metal cylindrical or cylindrical shaft. The rotary shaft 22a is rotatably supported on one end side by the support unit 25 and rotatably on the other end side by the support unit 26.

The rotary drum 22b is provided, for example, as a cylindrical or radial structure having a cylindrical portion or a plurality of sleeve support portions arranged along the circumferential direction. The rotating drum 22b is attached to the rotating shaft 22a so as to rotate together with the rotating shaft 22a. For example, the cylindrical portion or the plurality of sleeve support portions of the rotary drum 22b are fixed to the rotary shaft 22a via a plurality of support columns extending in the radial direction. Further, the rotary drum 22b is attached to the rotary shaft 22a so that the rotary center axis of the rotary shaft 22a and the rotary center axis of the rotary drum 22b coincide with each other. The support column portion has a mechanism that operates freely in a hydraulic cylinder mechanism or the like, and supports the cylindrical portion or a plurality of sleeve support portions in the rotary drum 22b so as to be flexibly expandable and contractible in the radial direction. It may be configured.

The outer peripheral sleeve 22c is provided as a rubber cylindrical sleeve and is attached to the outer circumference of the rotary drum 22b. The diameter of the inner circumference of the outer peripheral sleeve 22c is set to a dimension substantially corresponding to the diameter of the outer circumference of the rotary drum 22b. When the rotary drum 22b rotates, the outer peripheral sleeve 22c attached to the rotary drum 22b rotates at the same rotation speed together with the rotary drum 22b. Further, the outer peripheral sleeve 22c is provided with a plurality of grooves having a V-shaped cross section on the surface side of the outer periphery thereof. A plurality of grooves having a V-shaped cross section provided on the outer periphery of the outer peripheral sleeve 22c are provided so as to extend in parallel with each other along the circumferential direction of the outer peripheral sleeve 22c. Each of the plurality of grooves provided on the outer periphery of the outer peripheral sleeve 22c is configured so that each of the plurality of rubber belt portions 101 in the belt sleeve 107 is fitted. Each of the plurality of rubber belt portions 101 in the belt sleeve 107 is fitted into each of the plurality of grooves provided on the outer periphery of the outer peripheral sleeve 22c in the portion on the inner peripheral side thereof.

The belt sleeve 107 is wound around the outer circumference of the driven roll 22 configured by mounting the outer peripheral sleeve 22c on the outer circumference of the rotating drum 22b fixed to the rotating shaft 22a. At this time, the belt sleeve 107 is wound around the outer periphery of the driven roll 22 in a state where each of the plurality of rubber belt portions 101 is fitted into each of the plurality of grooves on the outer periphery of the outer peripheral sleeve 22c. In this embodiment, the belt sleeve 107 is wound around a part of the outer circumference of the driven roll 22. More specifically, the belt sleeve 107 is wound around about half the circumference of the driven roll 22.

In this embodiment, as a rotating body around which the belt sleeve 107 is wound, a rotating body (21, 22) configured by mounting an outer peripheral sleeve (21c, 22c) on a rotating drum (21b, 22b) is exemplified. However, it does not have to be this street. For example, a rotating body may be implemented in which the outer peripheral sleeves (21c, 22c) are not provided and the belt sleeve 107 is directly wound around the outer periphery of the rotating drum (21b, 22b). In this case, on the outer periphery of the rotating drums (21b, 22b), a plurality of V-shaped grooves are provided in which the plurality of rubber belt portions 101 of the belt sleeve 107 are fitted.

The drive unit 23 is installed on the base 15 and is configured as a mechanism for rotatably supporting the drive roll 21 and rotationally driving the drive roll 21. The drive unit 23 includes a housing 27, a motor 28, a belt drive mechanism 29, and the like.

The housing 27 is installed on the base 15, accommodates the motor 28, and is configured as a housing that rotatably supports the rotating shaft 21a of the drive roll 21 on one end side of the rotating shaft 21a. The motor 28 is configured as an electric motor that generates a drive torque for rotationally driving the rotary shaft 21a. The motor 28 is supplied with electric energy from a power source (not shown), operates based on a control command from a control device 14 described later, and rotates at a predetermined rotation speed. The motor 28 is installed in the housing 27 so that the axial direction of the output shaft 28a is parallel to the axial direction of the rotating shaft 21a.

The belt drive mechanism 29 is provided as a mechanism for transmitting the drive torque from the motor 28 to the rotating shaft 21a of the drive roll 21. The belt drive mechanism 29 includes a drive pulley 29a, a driven pulley 29b, a drive belt 29c, and a connecting shaft 29d.

The drive pulley 29a is fixed to the output shaft 28a of the motor 28 and is configured to rotate together with the output shaft 28a. The driven pulley 29b is connected to the rotating shaft 21a of the drive roll 21 via the connecting shaft 29d. The connecting shaft 29d is connected to the end of the rotating shaft 21a and is configured to rotate synchronously with the rotating shaft 21a in a coaxial center. The connecting shaft 29d is fixed to the driven pulley 29b at the end on the side opposite to the end connected to the rotating shaft 21a. Further, the connecting shaft 29d is rotatably supported by the housing 27 together with the rotating shaft 21a. The drive belt 29c is provided as an endless belt. The drive belt 29c is wound around the drive pulley 29a and the driven pulley 29b, and is configured as a belt that transmits the drive torque of the drive pulley 29a to the driven pulley 29b.

When the motor 28 is operated based on the control command from the control device 14 described later, the drive pulley 29a rotates together with the output shaft 28a. By rotating the drive pulley 29a, the drive belt 29c wound around the drive pulley 29a and the driven pulley 29b is rotated. When the drive belt 29c is rotated, the driven pulley 29b rotates, and the rotating shaft 21a rotates together with the driven pulley 29b. Then, the rotating drum 21b and the outer peripheral sleeve 21c rotate together with the rotating shaft 21a. That is, the drive roll 21 rotates.

As described above, the drive unit 23 includes the housing 27, the motor 28, and the belt drive mechanism 29, so that the drive roll 21 is rotatably supported and the drive roll 21 is rotationally driven.

The support unit 24 includes a support post 24a, a support arm 24b, a support cylinder 24c, and the like. The support post 24a is configured as a columnar body installed on the base 15, and rotatably supports each of the support arm 24b and the support cylinder 24c.

One end of the support arm 24b is rotatably supported by the support post 24a. The support arm 24b is configured such that the other end rotatably supports the rotation shaft 21a of the drive roll 21 at the end opposite to the side supported by the drive unit 23. The other end of the support arm 24b is provided with a chuck portion 24d that is configured to be openable and closable and holds the end of the rotating shaft 21a. The chuck portion 24d at the end of the support arm 24b is configured to receive and hold the end of the rotary shaft 21a in the open state and rotatably hold the end of the rotary shaft 21a in the closed state. ..

One end of the support cylinder 24c is rotatably supported by the support post 24a. The support cylinder 24c is configured such that the other end rotatably supports the support arm 24b at an intermediate position in the longitudinal direction thereof. Further, the support cylinder 24c has a cylinder and a rod, and is configured as a hydraulic cylinder mechanism that operates by supplying and discharging pressure oil. As shown in FIGS. 7 and 8, the support cylinder 24c is in a state in which the rod is extended with respect to the cylinder by supplying pressure oil from a hydraulic source (not shown). In this state, the support cylinder 24c maintains a state in which the other end of the support arm 24b provided with the chuck portion 24d is located at a predetermined height position. On the other hand, when the pressure oil is discharged from the support cylinder 24c, the rod is in a degenerate state in the cylinder, and the support arm 24b rotates about one end supported by the support post 24a. Then, the other end of the support arm 24b provided with the chuck portion 24d is displaced downward.

The support unit 25 is configured to include a support post 25a. The support post 25a is configured as a columnar body installed on the base 15. The support post 25a is configured to rotatably support the rotating shaft 22a of the driven roll 22 on one end side of the rotating shaft 22a.

The support unit 26 includes a support post 26a, a support arm 26b, a support cylinder 26c, and the like. The support post 26a is configured as a columnar body installed on the base 15, and rotatably supports each of the support arm 26b and the support cylinder 26c.

One end of the support arm 26b is rotatably supported by the support post 26a. The support arm 26b is configured such that the other end rotatably supports the rotation shaft 22a of the driven roll 22 at the end opposite to the side supported by the support unit 25. The other end of the support arm 26b is provided with a chuck portion 26d that is configured to be openable and closable and holds the end of the rotating shaft 22a. The chuck portion 26d at the end of the support arm 26b is configured to receive and hold the end of the rotary shaft 22a in the open state and rotatably hold the end of the rotary shaft 22a in the closed state. ..

One end of the support cylinder 26c is rotatably supported by the support post 26a. The support cylinder 26c is configured such that the other end rotatably supports the support arm 26b at an intermediate position in the longitudinal direction thereof. Further, the support cylinder 26c has a cylinder and a rod, and is configured as a hydraulic cylinder mechanism that operates by supplying and discharging pressure oil. As shown in FIGS. 7 and 8, the support cylinder 26c is in a state in which the rod is extended with respect to the cylinder by supplying pressure oil from a hydraulic source (not shown). In this state, the support cylinder 26c maintains a state in which the other end of the support arm 26b provided with the chuck portion 26d is located at a predetermined height position. On the other hand, when the pressure oil is discharged from the support cylinder 26c, the rod is in a degenerate state in the cylinder, and the support arm 26b rotates about one end supported by the support post 26a. Then, the other end of the support arm 26b provided with the chuck portion 26d is displaced downward.

As described above, the sleeve traveling mechanism 11 includes a rotating body (21, 22) provided as a drive roll 21 and a driven roll 22, a drive unit 23, and a support unit (24, 25, 26). As a result, the sleeve traveling mechanism 11 rotates the rotating body (21, 22) with the belt sleeve 107 wound around a part of the outer periphery of each of the rotating bodies (21, 22), and causes the belt sleeve 107 to rotate. It is configured to run in the circumferential direction. In the state where the belt sleeve 107 is wound around the outer circumference of the rotating body (21, 22), the rotating body (21, 22) is arranged inside the tubular belt sleeve 107. Further, the rotating body (drive roll) 21 is rotationally driven in a state where the belt sleeve 107 is wound around the outer periphery of the rotating body (21, 22), so that the belt sleeve 107 rotates with the rotation of the rotating body 21. The rotating body (driven roll) 22 also rotates while rotating in the direction. The belt sleeve 107 rotates in the circumferential direction by performing a circumferential operation around the rotating body (21, 22) together with the rotation of the rotating body (21, 22).

Further, the sleeve traveling mechanism 11 has a plurality of rotating bodies (21, 22). The sleeve traveling mechanism 11 is one of the plurality of rotating bodies (21, 22) in a state where the belt sleeve 107 is wound around a part of the outer periphery of each of the plurality of rotating bodies (21, 22). The rotating body 21 is rotationally driven and the belt sleeve 107 is configured to travel in the circumferential direction. Further, the sleeve traveling mechanism 11 has a pair of rotating bodies (21, 22) as a plurality of rotating bodies (21, 22). The rotating body 21 which is one of the pair of rotating bodies (21, 22) is configured as a drive roll 21 which is rotationally driven. Further, the rotating body 22 which is the other of the pair of rotating bodies (21, 22) is configured as a driven roll 22 which rotates with the running of the belt sleeve 107 which runs in the circumferential direction with the rotation of the driving roll 21. There is.

[Wire running mechanism]
FIG. 10 is an enlarged view showing a part of the coupling belt forming apparatus 1 shown in FIG. 7. FIG. 11 is an enlarged view showing a part of the coupling belt forming apparatus 1 shown in FIG. As shown in FIGS. 7 to 11, the wire traveling mechanism 12 includes a pair of wires (30a, 30b), a wire holding unit 31, a bobbin motor 32, a bobbin side power transmission unit 33, a motor side power transmission unit 34, and a case 35. , Etc. are provided. The wire traveling mechanism 12 is configured as a mechanism that applies tension to each of the pair of wires (30a, 30b) and causes the tensioned portions to travel in parallel with each other along a linear direction. That is, in the wire traveling mechanism 12, the tension-applied portion of each of the pair of wires (30a, 30b) (the tension-applied portion of the wire 30a and the tension-applied portion of the wire 30b) is placed in a linear direction. It is configured as a mechanism to run parallel to each other along the line.

In the wire traveling mechanism 12, a part of the wire holding unit 31, the bobbin motor 32, the bobbin side power transmission unit 33, and the motor side power transmission unit 34 are housed in the case 35. The case 35 is installed in a cutting mechanism 13 described later. As a result, the wire traveling mechanism 12 is configured to be moved by the cutting mechanism 13. In the case 35, an opening 35a is provided on the side of the sleeve traveling mechanism 11 facing the driven roll 22. A part of the wire holding unit 31 is exposed from the opening 35a.

Each of the pair of wires (30a, 30b) (ie, each of the wires 30a and 30b) is provided as one long continuous wire. For example, each of the wire 30a and the wire 30b is provided as a long wire having a length of about 2000 m. Further, each of the wire 30a and the wire 30b is configured as, for example, a diamond wire. More specifically, each wire (30a, 30b) configured as a diamond wire has, for example, a core wire configured as a piano wire which is a metal wire made of carbon steel, and diamond abrasive grains on the surface of the core wire. Is configured as a wire fixed by electrodeposition. The diameter dimension of each wire (30a, 30b) is set to, for example, 120 to 320 μm, and the diameter dimension of the core wire of each wire (30a, 30b) is set to, for example, 120 to 250 μm.

The wire holding unit 31 is configured to include a pair of wire holding portions (31a, 31b) that hold each of the pair of wires (30a, 30b). Each of the pair of wire holding portions (31a, 31b) is a pair of rotating bobbins ((36a, 36b) in which portions on both ends of one continuous wire (30a or 30b) are wound and rotated synchronously. ) Or (37a, 37b)). That is, the wire holding portion 31a is configured to include a pair of rotating bobbins (36a, 36b) in which portions on both ends of one continuous wire 30a are wound and rotated in synchronization with each other. The wire holding portion 31b is configured to include a pair of rotating bobbins (37a, 37b) in which portions on both ends of one continuous wire 30b are wound and rotated in synchronization with each other.

Each rotating bobbin (36a, 36b) of the wire holding portion 31a is provided as a disk-shaped member, and a recessed groove around which the wire 30a is wound is provided over the entire circumference. The diameter dimension of the outer circumference of the rotary bobbin 36a and the diameter dimension of the outer circumference of the rotary bobbin 36b are set to the same dimension. Further, one end of the wire 30a in the longitudinal direction is fixed to the rotating bobbin 36a. The wire 30a whose one end is fixed to the rotary bobbin 36a is wound around the outer periphery of the rotary bobbin 36a over a sufficient length of the portion on the one end side. Further, the other end of the wire 30a in the longitudinal direction is fixed to the rotating bobbin 36b. The wire 30a whose other end is fixed to the rotary bobbin 36b has a portion on the other end side wound around the outer periphery of the rotary bobbin 36b over a sufficient length.

Each of the rotating bobbins (37a, 37b) of the wire holding portion 31b is provided as a disk-shaped member, and a recessed groove around which the wire 30b is wound is provided over the entire circumference. The diameter dimension of the outer circumference of the rotary bobbin 37a and the diameter dimension of the outer circumference of the rotary bobbin 37b are set to the same dimension. Further, one end of the wire 30b in the longitudinal direction is fixed to the rotating bobbin 37a. The wire 30b whose one end is fixed to the rotary bobbin 37a is wound around the outer periphery of the rotary bobbin 37a over a sufficient length of the portion on the one end side. Further, the other end portion of the wire 30b in the longitudinal direction is fixed to the rotating bobbin 37b. The wire 30b whose other end is fixed to the rotary bobbin 37b is wound around the outer periphery of the rotary bobbin 37b over a sufficient length at the other end side portion.

The outer peripheral diameters of the rotating bobbins (36a, 36b) of the wire holding portion 31a and the rotating bobbins (37a, 37b) of the wire holding portion 31b are all set to the same dimensions. That is, the diameter dimension of the outer circumference of the rotary bobbin 36a, the diameter dimension of the outer circumference of the rotary bobbin 36b, the diameter dimension of the outer circumference of the rotary bobbin 37a, and the diameter dimension of the outer circumference of the rotary bobbin 37b are set to the same dimensions.

The rotating bobbin 36a of the wire holding portion 31a and the rotating bobbin 37a of the wire holding portion 31b are attached to the connecting shaft 38 rotatably attached to the case 35. The connecting shaft 38 is rotatably attached to the case 35 with its axial direction extending in a direction parallel to the axial direction of the rotating shafts (21a, 22a) of the rotating body (21, 22). .. In FIG. 11, the portion of the connecting shaft 38 that is rotatably supported by the case 35 is not shown. The rotary bobbin 36a and the rotary bobbin 37a are attached to the connecting shaft 38 in an axially aligned state.

Further, the rotary bobbin 36a of the wire holding portion 31a is attached to the connecting shaft 38 via an urging spring (not shown), and is also attached to the connecting shaft 38 so as to rotate with the connecting shaft 38. The urging spring provided between the rotary bobbin 36a and the connecting shaft 38 is provided as, for example, a coil spring. Then, the urging spring urges the rotary bobbin 36a in the axial direction with respect to the connecting shaft 38 in the direction of pulling the wire 30a wound around the rotary bobbin 36a with the rotary bobbin 36b. It is configured in. The rotary bobbin 36a is attached to the connecting shaft 38 in a state where the position around the shaft is restricted so as not to rotate relative to the connecting shaft 38 while being urged by the above-mentioned urging spring. Has been done. Therefore, the rotary bobbin 36a is configured to rotate together with the connecting shaft 38 in a state where tension is applied to the wire 30a with the rotary bobbin 36b.

The rotary bobbin 37a of the wire holding portion 31b is attached to the connecting shaft 38 via an urging spring (not shown), and is also attached to the connecting shaft 38 so as to rotate with the connecting shaft 38. The urging spring provided between the rotary bobbin 37a and the connecting shaft 38 is provided as, for example, a coil spring. Then, the urging spring urges the rotary bobbin 37a in the axial direction with respect to the connecting shaft 38 in the direction of pulling the wire 30b wound around the rotary bobbin 37a with the rotary bobbin 37b. It is configured in. The rotary bobbin 37a is attached to the connecting shaft 38 in a state where the position around the shaft is restricted so as not to rotate relative to the connecting shaft 38 in a state of being urged by the above-mentioned urging spring. Has been done. Therefore, the rotary bobbin 37a is configured to rotate together with the connecting shaft 38 in a state where tension is applied to the wire 30b with the rotary bobbin 37b.

The rotating bobbin 36b of the wire holding portion 31a and the rotating bobbin 37b of the wire holding portion 31b are attached to a connecting shaft 39 rotatably attached to the case 35. The connecting shaft 39 is rotatably attached to the case 35 with its axial direction extending in a direction parallel to the axial direction of the rotating shafts (21a, 22a) of the rotating body (21, 22). .. In FIG. 11, the portion of the connecting shaft 39 that is rotatably supported by the case 35 is not shown. The rotary bobbin 36b and the rotary bobbin 37b are attached to the connecting shaft 39 in an axially aligned state.

Further, the rotary bobbin 36b of the wire holding portion 31a is attached to the connecting shaft 39 via an urging spring (not shown), and is also attached to the connecting shaft 39 so as to rotate with the connecting shaft 39. The urging spring provided between the rotary bobbin 36b and the connecting shaft 39 is provided as, for example, a coil spring. Then, the urging spring urges the rotary bobbin 36b in the axial direction with respect to the connecting shaft 39 in the direction of pulling the wire 30a wound around the rotary bobbin 36b with the rotary bobbin 36a. It is configured in. The rotary bobbin 36b is attached to the connecting shaft 39 in a state where the position around the shaft is restricted so as not to rotate relative to the connecting shaft 39 in a state of being urged by the above-mentioned urging spring. Has been done. Therefore, the rotary bobbin 36b is configured to rotate together with the connecting shaft 39 in a state where tension is applied to the wire 30a with the rotary bobbin 36a.

The rotary bobbin 37b of the wire holding portion 31b is attached to the connecting shaft 39 via an urging spring (not shown), and is attached to the connecting shaft 39 so as to rotate with the connecting shaft 39. The urging spring provided between the rotary bobbin 37b and the connecting shaft 39 is provided as, for example, a coil spring. Then, the urging spring urges the rotary bobbin 37b in the axial direction with respect to the connecting shaft 39 in the direction of pulling the wire 30b wound around the rotary bobbin 37b with the rotary bobbin 37a. It is configured in. The rotary bobbin 37b is attached to the connecting shaft 39 in a state where the position around the shaft is restricted so as not to rotate relative to the connecting shaft 39 in a state of being urged by the above-mentioned urging spring. Has been done. Therefore, the rotary bobbin 37b is configured to rotate together with the connecting shaft 39 in a state where tension is applied to the wire 30b with the rotary bobbin 37a.

Further, the rotary bobbin 36a and the rotary bobbin 36b of the wire holding portion 31a are relative to the connecting shaft 38 and the connecting shaft 39 extending in parallel with the axial direction of the rotating shaft (21a, 22a) of the rotating body (21, 22). They are arranged side by side along the orthogonal direction. Similarly, the rotating bobbin 37a and the rotating bobbin 37b of the wire holding portion 31b are relative to the connecting shaft 38 and the connecting shaft 39 extending in parallel with the axial direction of the rotating shaft (21a, 22a) of the rotating body (21, 22). , Arranged side by side along the orthogonal direction.

Further, the dimension of the distance between the position where the wire 30a is wound on the rotating bobbin 36a of the wire holding portion 31a and the position where the wire 30b is wound on the rotating bobbin 37a of the wire holding portion 31b is the dimension of the belt sleeve 107. The dimensions are set appropriately corresponding to the dimensions of the distance between the adjacent rubber belt portions 101 in the above. Similarly, the dimension of the distance between the position where the wire 30a is wound on the rotating bobbin 36b of the wire holding portion 31a and the position where the wire 30b is wound on the rotating bobbin 37b of the wire holding portion 31b is the dimension of the belt sleeve. The dimensions are set appropriately corresponding to the dimensions of the distance between the adjacent rubber belt portions 101 in 107. For example, the dimension of the distance between the position where the wire 30a is wound on the rotating bobbin (36a, 36b) and the position where the wire 30b is wound on the rotating bobbin (37a, 37b) is the dimension of the belt sleeve 107. The dimension corresponding to the dimension of the distance between the adjacent rubber belt portions 101 in the above is set at a predetermined ratio.

The bobbin motor 32 is configured as an electric motor that generates a drive torque for driving the wire holding unit 31 via the power transmission unit 33 and the power transmission unit 34. The bobbin motor 32 is configured to be supplied with electric energy from a power source (not shown) and to operate and rotate based on a control command from a control device 14 described later. Further, the bobbin motor 32 is configured to be rotatable in both forward and reverse directions based on a control command from the control device 14.

The power transmission unit 33 is provided as a mechanism for transmitting the drive torque transmitted from the bobbin motor 32 to the wire holding unit 31 via the power transmission unit 34. The power transmission unit 33 is configured as a mechanism having a drive pulley 33a, a driven pulley 33b, and a drive belt 33c.

The drive pulley 33a is fixed to the connecting shaft 39 rotatably attached to the case 35 in the middle portion thereof. The drive pulley 33a is connected to the rotary bobbin 37b and the rotary bobbin 36b via the connecting shaft 39, and is configured to rotate together with the connecting shaft 39, the rotary bobbin 37b, and the rotary bobbin 36b. The drive torque transmitted from the bobbin motor 32 via the power transmission unit 34 is transmitted to the connecting shaft 39 to which the drive pulley 33a is fixed. The driven pulley 33b is fixed to the connecting shaft 38 rotatably attached to the case 35 in the middle portion thereof. The driven pulley 33b is connected to the rotary bobbin 37a and the rotary bobbin 36a via the connecting shaft 38, and is configured to rotate together with the connecting shaft 38, the rotary bobbin 37a, and the rotary bobbin 36a. The drive belt 33c is configured as a belt wound around the drive pulley 33a and the driven pulley 33b and further transmitting the drive torque transmitted to the drive pulley 33a to the driven pulley 33b.

The power transmission unit 34 is provided as a mechanism for transmitting the drive torque transmitted from the bobbin motor 32 to the power transmission unit 33. The power transmission unit 34 is configured as a mechanism having a drive pulley 34a, a driven pulley 34b, and a drive belt 34c.

The drive pulley 34a is fixed to the output shaft 32a of the bobbin motor 32 and is configured to rotate together with the output shaft 32a. The driven pulley 34b is fixed to the connecting shaft 39 rotatably attached to the case 35 in the middle portion thereof. The driven pulley 34b is connected to the drive pulley 33a, the rotary bobbin 37b, and the rotary bobbin 36b via the connecting shaft 39. As a result, the driven pulley 34b is configured to rotate together with the connecting shaft 39, the drive pulley 33a, the rotary bobbin 37b, and the rotary bobbin 36b. The drive belt 34c is configured as a belt wound around the drive pulley 34a and the driven pulley 34b and transmitting the drive torque input to the drive pulley 34a to the driven pulley 34b.

In the wire traveling mechanism 12, when the bobbin motor 32 is operated based on the control command from the control device 14, the drive pulley 34a rotates together with the output shaft 32a. By rotating the drive pulley 34a, the drive belt 34c wound around the drive pulley 34a and the driven pulley 34b is rotated. When the drive belt 34c is rotated, the driven pulley 34b rotates, and the connecting shaft 39, the drive pulley 33a, the rotating bobbin 37b, and the rotating bobbin 36b rotate together with the driven pulley 34b. Then, by rotating the drive pulley 33a, the drive belt 33c wound around the drive pulley 33a and the driven pulley 33b is rotated. When the drive belt 33c is rotated, the driven pulley 33b rotates, and the connecting shaft 38, the rotating bobbin 37a, and the rotating bobbin 36a rotate together with the driven pulley 33b.

As described above, in the wire traveling mechanism 12, a pair of rotating bobbins ((36a, 36b), (37a, 37b)) are generated in each of the pair of wire holding portions (31a, 31b) by the driving torque from the bobbin motor 32. , It is rotationally driven in a state of being synchronized in the same direction.

Then, in the wire holding portion 31a, the pair of rotating bobbins (36a, 36b) rotate in a synchronized state in the same direction, so that the wire 30a is discharged from one of the pair of rotating bobbins (36a, 36b). , The wire 30a will be wound up at the other end of the pair of rotating bobbins (36a, 36b). Further, the wire 30a discharged from one of the pair of rotating bobbins (36a, 36b) is wound up on the other, so that the wire 30a is drawn along the linear direction between the pair of rotating bobbins (36a, 36b). It will run. A part of each of the pair of rotating bobbins (36a, 36b) is exposed to the outside through the opening 35a of the case 35. A portion of the wire 30a that runs along the linear direction between the pair of rotating bobbins (36a, 36b) is arranged on the outside of the case 35.

Similarly, in the wire holding portion 31b, the pair of rotating bobbins (37a, 37b) rotate in a synchronized state in the same direction, so that the wire 30b is discharged from one of the pair of rotating bobbins (37a, 37b). At the same time, the wire 30b is wound on the other of the pair of rotating bobbins (37a, 37b). Further, the wire 30b discharged from one of the pair of rotating bobbins (37a, 37b) is wound up on the other, so that the wire 30b is wound along the linear direction between the pair of rotating bobbins (37a, 37b). It will run. A part of each of the pair of rotating bobbins (37a, 37b) is exposed to the outside through the opening 35a of the case 35. A portion of the wire 30b that runs along the linear direction between the pair of rotating bobbins (37a, 37b) is arranged on the outside of the case 35.

Further, in the wire holding portion 31a, when the pair of rotary bobbins (36a, 36b) are rotationally driven in a state of being synchronized in the same direction and the wire 30a travels along the linear direction, the pair of rotary bobbins (36a, 36a, A state in which tension is applied to the wire 30a is maintained during 36b). That is, when the wire 30a travels along the linear direction, the above-mentioned urging spring provided between the rotary bobbin 36a and the connecting shaft 38 is provided between the rotary bobbin 36b and the connecting shaft 39. A state in which tension is applied to the wire 30a between the pair of rotating bobbins (36a, 36b) is maintained by the above-mentioned urging spring.

Similarly, in the wire holding portion 31b, when the pair of rotary bobbins (37a, 37b) are rotationally driven in a state of being synchronized in the same direction and the wire 30b travels along the linear direction, the pair of rotary bobbins (37a) , 37b), the state in which tension is applied to the wire 30b is maintained. That is, when the wire 30b travels along the linear direction, the above-mentioned urging spring provided between the rotating bobbin 37a and the connecting shaft 38 is provided between the rotating bobbin 37b and the connecting shaft 39. A state in which tension is applied to the wire 30b between the pair of rotating bobbins (37a, 37b) is maintained by the above-mentioned urging spring.

As described above, in the wire traveling mechanism 12, in each of the pair of wire holding portions (31a, 31b), the portions on both ends of one continuous wire (30a or 30b) are wound and synchronized with each other. It has a pair of rotating bobbins ((36a, 36b) or (37a, 37b)) that rotate. Then, the wire traveling mechanism 12 tensions the wire (30a or 30b) between the pair of rotating bobbins ((36a, 36b) or (37a, 37b)) in each of the pair of wire holding portions (31a, 31b). The wire (30a or 30b) is dispensed from one of the pair of rotating bobbins ((36a, 36b) or (37a, 37b)) and the pair of rotating bobbins ((36a, 36b) or ((36a, 36b)) or ( By winding the wire (30a or 30b) on the other side of the 37a, 37b)), the tension in the wire (30a or 30b) between the pair of rotating bobbins ((36a, 36b) or (37a, 37b)). It is configured to run the portion to which the above is applied along the linear direction.

Further, in the wire traveling mechanism 12, the bobbin motor 32 is configured to be rotatable in both forward and reverse directions based on a control command from the control device 14. Then, each of the pair of rotary bobbins ((36a, 36b), (37a, 37b)) is rotationally driven in a state of being synchronized in the same direction by the drive torque from the bobbin motor 32. Therefore, the wire traveling mechanism 12 alternately repeats the rotation directions of the bobbin motor 32 in both forward and reverse directions, so that each of the pair of rotating bobbins ((36a, 36b), (37a, 37b)) is synchronized. It is configured to alternately reverse the direction of rotation. Then, the wire traveling mechanism 12 repeats rotation while alternately reversing the rotation directions in which the pair of rotating bobbins ((36a, 36b), (37a, 37b)) rotate in synchronization with each other, thereby repeating the rotation of the wire (30a, 30b). ) Is configured to travel while reciprocating along the linear direction of the tensioned portion. In addition, in FIG. 10, the direction parallel to the traveling direction in which the tensioned portion of the wire (30a, 30b) reciprocates along the linear direction is indicated by the arrow C at both ends. The rotation speed (r / min) of the bobbin motor 32 is, for example, a rotation speed (r / min) such that the tensioned portions of the wires (30a, 30b) are driven at a high speed of about 1500 m / min along the linear direction. It is set to r / min).

[Cut mechanism]
As shown in FIGS. 7 to 11, the cutting mechanism 13 includes a width direction moving mechanism 40, an advancing / retreating moving mechanism 41, a base portion 42, and the like. Then, the cutting mechanism 13 presses the traveling pair of wires (30a, 30b) between the adjacent rubber belt portions 101 against the reinforcing cloth 102 of the traveling belt sleeve 107, thereby pushing the belt sleeve 107 in the circumferential direction. The coupling V-belt 100 is cut out from the belt sleeve 107 to form a coupling V-belt 100.

The base portion 42 is installed on the base 15 and is provided as a pedestal portion that supports the width direction moving mechanism 40, the advancing / retreating moving mechanism 41, and the wire traveling mechanism 12. The width direction moving mechanism 40, the advancing / retreating moving mechanism 41, and the wire traveling mechanism 12 are installed on the upper surface of the base portion 42.

The width direction moving mechanism 40 has the advancing / retreating moving mechanism 41 and the wire traveling mechanism 12 in a direction parallel to the width direction of the belt sleeve 107 wound around the outer periphery of the rotating body (21, 22) with respect to the base portion 42. It is configured as a mechanism to move along. The width direction of the belt sleeve 107 is the direction in which the belt sleeve 107 extends in a cylindrical shape, and is indicated by arrows B at both ends in FIGS. 8 and 9. Further, when the belt sleeve 107 is wound around the outer periphery of the rotating body (21, 22), the width direction of the belt sleeve 107 is the axial direction of the rotating shaft (21a, 22a) of the rotating body (21, 22). The direction is parallel to.

The width direction moving mechanism 40 includes a pair of rails (43a, 43b), a ball screw mechanism 44, a moving plate 45, and the like. The pair of rails (43a, 43b) are provided as rails that guide the moving direction of the moving plate 45. The pair of rails (43a, 43b) are fixedly installed on the upper surface of the base portion 42. Then, the pair of rails (43a, 43b) are wound so as to extend parallel to the axial direction of the rotating shaft (21a, 22a) of the rotating body (21, 22), that is, around the outer circumference of the rotating body (21, 22). It is installed so as to extend parallel to the width direction of the hung belt sleeve 107.

The ball screw mechanism 44 includes a screw shaft 44a, a ball screw motor 44b, a bearing 44c, a nut portion 44d, a plurality of balls (not shown), and the like.

One end of the screw shaft 44a is supported by a ball screw motor 44b, and the other end is rotatably supported by a bearing 44c. The screw shaft 44a is arranged on the base portion 42 so that its axial direction extends in parallel with the pair of rails (43a, 43b). The ball screw motor 44b is configured as an electric motor that rotationally drives the screw shaft 44a around its axis. The ball screw motor 44b is configured to be supplied with electric energy from a power source (not shown), operate based on a control command from a control device 14 described later, and rotate a predetermined number of times.

The nut portion 44d is provided as a block-shaped element through which the screw shaft 44a penetrates and moves relative to the screw shaft 44a along the axial direction of the screw shaft 44a by rotating the screw shaft 44a. Inside the nut portion 44d, a screw groove facing the screw groove of the screw shaft 44a is formed. A plurality of balls that are rotatably fitted into both grooves are arranged between the screw groove of the nut portion 44d and the screw groove of the screw shaft 44a. When the screw shaft 44a rotates around the axis, a plurality of balls circulate between the nut portion 44d and the screw shaft 44a, and the nut portion 44d moves relative to the screw shaft 44a in the axial direction.

Further, the nut portion 44d is fixed to the lower surface of the moving plate 45 on the upper surface side thereof. Further, the nut portion 44d is arranged so as to be fitted between the pair of rails (43a, 43b). The nut portion 44d is arranged so as to be slidable with respect to the pair of rails (43a, 43b). Therefore, when the screw shaft 44a rotates, the nut portion 44d moves along the axial direction of the screw shaft 44a while being guided by the pair of rails (43a, 43b).

The moving plate 45 is provided as a flat plate-shaped member, and is fixed to the nut portion 44d on the lower surface side thereof. Further, the moving plate 45 is supported on the lower surface side thereof in a slidable state with respect to the upper surfaces of the pair of rails (43a, 43b). An advancing / retreating moving mechanism 41 is installed on the upper surface of the moving plate 45.

The advancing / retreating moving mechanism 41 moves the wire traveling mechanism 12 with respect to the moving plate 45 in a direction of advancing and retracting with respect to the belt sleeve 107 wound around the outer periphery of the rotating body (21, 22). Is configured as. The advancing / retreating moving mechanism 41 includes a pair of rails (46a, 46b), a moving table 47, a ball screw mechanism 48, and the like.

The pair of rails (46a, 46b) are provided as rails that guide the moving direction of the moving table 47. The pair of rails (46a, 46b) are fixedly installed on the upper surface of the moving plate 45. Then, the pair of rails (46a, 46b) are installed on the moving plate 45 so as to extend in a direction approaching the belt sleeve 107 wound around the outer circumference of the rotating body (21, 22). ing. More specifically, the pair of rails (46a, 46b) is in a direction approaching the belt sleeve 107 wound around the outer periphery of the rotating body (21, 22), and the rotating body (21, 22). 22) is installed on the moving plate 45 so as to extend along a direction orthogonal to the direction parallel to the axial direction of the rotation axes (21a, 22a).

The moving table 47 is arranged so as to be slidable with respect to the upper surface of the moving plate 45, and is configured as a member provided with a flat upper surface on which the wire traveling mechanism 12 is installed. The wire traveling mechanism 12 is installed on the moving table 47 by fixing the case 35 to the upper surface of the moving table 47. Further, on the lower surface side of the moving table 47, a pair of grooves that are slidably fitted to the pair of rails (46a, 46b) are provided. Further, a recess (not shown) is provided on the lower surface side of the moving table 47 to which the nut portion 48d of the ball screw mechanism 48 is fixedly attached.

The ball screw mechanism 48 includes a screw shaft 48a, a ball screw motor 48b, a bearing 48c, a nut portion 48d, a plurality of balls (not shown), and the like.

One end of the screw shaft 48a is supported by a ball screw motor 48b, and the other end is rotatably supported by a bearing 48c. Then, on the moving plate 45, the screw shaft 48a is arranged so that its axial direction extends in parallel with the pair of rails (46a, 46b). The ball screw motor 48b is configured as an electric motor that rotationally drives the screw shaft 48a around its axis. The ball screw motor 48b is configured to be supplied with electric energy from a power source (not shown), operate based on a control command from a control device 14 described later, and rotate a predetermined number of times.

The nut portion 48d is provided as a block-shaped element through which the screw shaft 48a penetrates and moves relative to the screw shaft 48a along the axial direction of the screw shaft 48a by rotating the screw shaft 48a. Inside the nut portion 48d, a screw groove facing the screw groove of the screw shaft 48a is formed. A plurality of balls that are rotatably fitted into both grooves are arranged between the screw groove of the nut portion 48d and the screw groove of the screw shaft 48a. As the screw shaft 48a rotates around the axis, a plurality of balls circulate between the nut portion 48d and the screw shaft 48a, and the nut portion 48d moves relative to the screw shaft 48a in the axial direction.

Further, the nut portion 48d is fixed to the moving table 47. More specifically, the nut portion 48d is fixed to the moving table 47 in the concave portion on the lower surface side of the moving table 47 on the upper surface side thereof. Further, the moving table 47 to which the nut portion 48d is fixed is fitted in a pair of grooves on the lower surface side thereof so as to be slidable with respect to the pair of rails (46a, 46b), and the upper surface of the moving plate 45 is fitted. It is arranged so that it can be slidably moved. Therefore, when the screw shaft 48a rotates, the nut portion 48d and the moving table 47 move along the axial direction of the screw shaft 48a while being guided by the pair of rails (46a, 46b).

In the advancing / retreating moving mechanism 41, the ball screw mechanism 48 operates and the nut portion 48d moves in a direction approaching the rotating body 22, so that the moving table 47 moves along the pair of rails (46a, 46b) to the rotating body (21). , 22) is configured to move in the direction of advancing toward the belt sleeve 107 wound around the outer circumference. Further, in the advancing / retreating moving mechanism 41, the ball screw mechanism 48 operates and the nut portion 48d moves in a direction away from the rotating body 22, so that the moving table 47 moves along the pair of rails (46a, 46b). It is configured to move in the direction of retracting from the belt sleeve 107 wound around the outer periphery of 21 and 22).

FIG. 12 is a front view of the coupling belt forming device 1 and is a diagram for explaining the operation of the coupling belt forming device 1. FIG. 13 is a plan view of the coupling belt forming apparatus 1 and is a diagram for explaining the operation of the coupling belt forming apparatus 1. 14 and 15 are views for explaining the operation of the coupling belt forming device 1, and are diagrams schematically showing the wire holding unit 31 and its vicinity. Note that FIG. 14 is a schematic view of the wire holding unit 31 and its vicinity as viewed from the front side of the coupling belt forming device 1. FIG. 15 is a schematic view of the wire holding unit 31 and its vicinity as seen from the upper surface side of the coupling belt forming device 1.

The cutting mechanism 13 of the coupling belt forming device 1 includes the above-mentioned width direction moving mechanism 40 and the advancing / retreating moving mechanism 41, and operates based on a control command from the control device 14 described later. Further, when the cutting mechanism 13 operates, the sleeve traveling mechanism 11 and the wire traveling mechanism 12 also operate based on the control command from the control device 14. Then, by operating the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13, the belt sleeve 107 is cut in the circumferential direction, and the coupled V-belt 100 is formed (see FIGS. 13 and 15).

When the cutting mechanism 13 is operated, first, the ball screw motor 44b is rotated by a predetermined number of times based on the control command from the control device 14, and the width direction moving mechanism 40 is operated. As a result, the position of the moving plate 45 in the direction parallel to the width direction of the belt sleeve 107 so that the belt sleeve 107 is cut at the position corresponding to the dimension in the width direction of the coupled V-belt 100 cut out from the belt sleeve 107. Is positioned. That is, the positions of the advancing / retreating movement mechanism 41 and the wire traveling mechanism 12 are positioned so that the belt sleeve 107 is cut at a position corresponding to the dimension in the width direction of the coupled V-belt 100 cut out from the belt sleeve 107.

When positioning the moving plate 45, the intermediate position of the pair of wires (30a, 30b) in the wire holding unit 31 corresponds to the dimension in the width direction of the coupled V-belt 100 cut out from the belt sleeve 107. Positioning is performed so as to correspond to an intermediate position between adjacent rubber belt portions 101 in the belt sleeve 107.

When the positions of the advancing / retreating movement mechanism 41 and the wire traveling mechanism 12 are positioned as described above, the operation of the motor 28 is started and the operation of the bobbin motor 32 is also started based on the control command from the control device 14. It will be started. As a result, the operation of the sleeve traveling mechanism 11 is started, and the traveling operation of the belt sleeve 107 wound around the outer periphery of the rotating body (21, 22) in the circumferential direction is started. Then, the operation of the wire traveling mechanism 12 is also started, and the wire (30a, 30a, With the tension applied to the 30b), the operation of the tensioned portions of the wires (30a, 30b) running along the linear direction is started.

When the operation of the sleeve traveling mechanism 11 and the wire traveling mechanism 12 is started as described above, the ball screw motor 48b is rotated a predetermined number of times based on the control command from the control device 14, and the moving table 47 is a rotating body. The advance / retreat movement mechanism 41 operates so as to move in a direction approaching 22. As a result, the wire traveling mechanism 12 advances toward the belt sleeve 107 wound around the outer periphery of the rotating body (21, 22). Then, with the advancement of the wire traveling mechanism 12, the wires (30a, 30a, which travel between the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in the pair of wire holding portions (31a, 31b), respectively. 30b) advances toward the belt sleeve 107 to a position where the reinforcing cloth 102 of the belt sleeve 107 is cut in the thickness direction.

As described above, when the wire traveling mechanism 12 advances toward the belt sleeve 107, the rubber belt portion 101 adjacent to the reinforcing cloth 102 of the belt sleeve 107 driven by the sleeve traveling mechanism 11 and traveling in the circumferential direction A pair of wires (30a, 30b) traveling in parallel with each other along a straight line direction are pressed between the wires traveling mechanism 12. Then, a pair of wires (30a, 30b) traveling between the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of the pair of wire holding portions (31a, 31b) provide the reinforcing cloth 102. By advancing to the cutting position, the belt sleeve 107 is cut in the circumferential direction by a pair of wires (30a, 30b). As a result, the reinforcing cloth 102 of the belt sleeve 107 is cut in the circumferential direction between the adjacent rubber belt portions 101, and the bonded V-belt 100 is cut out from the belt sleeve 107 to be formed.

In FIGS. 13 and 15, the belt sleeve 107 is cut at the pair of cutting lines (107a, 107b) by the pair of wires (30a, 30b), and the bonded V-belt 100 is cut from the belt sleeve 107. The state is illustrated. When the belt sleeve 107 is cut by the pair of wires (30a, 30b), the belt sleeve 107 is cut by the wire 30a at the cutting line 107a and by the wire 30b at the cutting line 107b.

As described above, in the coupling belt forming device 1, the cutting mechanism 13 is driven by the sleeve traveling mechanism 11 to travel in the circumferential direction with respect to the reinforcing cloth 102 of the belt sleeve 107 between the adjacent rubber belt portions 101. By pressing a pair of wires (30a, 30b) traveling in parallel along the linear direction by the wire traveling mechanism 12, the belt sleeve 107 is cut in the circumferential direction to form a coupled V-belt 100. There is.

The connecting shaft (38, 39), which is the rotation axis of the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of the pair of wire holding portions (31a, 31b), has an axial direction thereof. , The rotating body (21, 22) is rotatably attached to the case 35 in a state of extending in a direction parallel to the axial direction of the rotating shafts (21a, 22a). Then, the advancing / retreating moving mechanism 41 moves the wire traveling mechanism 12 along a direction orthogonal to the direction parallel to the axial direction of the rotating shafts (21a, 22a) of the rotating body (21, 22), and the pair of wires. (30a, 30b) is pressed against the belt sleeve 107. Therefore, in the coupling belt forming device 1, the cutting mechanism 13 travels along the outer circumference of the rotating body 22 along the direction parallel to the tangential direction of the outer circumference of the rotating body 22 with respect to the belt sleeve 107. It is configured to press the wires (30a, 30b) of.

As described above, the dimension of the distance between the position where the wire 30a is wound on the rotating bobbin (36a, 36b) and the position where the wire 30b is wound on the rotating bobbin (37a, 37b) is determined. The dimension is set to correspond to the dimension of the distance between the adjacent rubber belt portions 101 in the belt sleeve 107 at a predetermined ratio. Therefore, the dimension of the distance between the pair of wires (30a, 30b) in the wire holding portion 31 is the dimension corresponding to the dimension of the distance between the adjacent rubber belt portions 101 in the belt sleeve 107 at a predetermined ratio. It is set.

FIG. 16 is a cross-sectional view showing a part of the belt sleeve 107, and is a view showing a part of the cross section of the tubular belt sleeve 107 parallel to the axial direction. As shown in FIG. 16, in the belt sleeve 107, the plurality of rubber belt portions 101 are connected by the reinforcing cloth 102 in a state where the rubber belt portions 101 are adjacent to each other with an interval of the dimension d. On the other hand, the dimension D of the distance between the pair of wires (30a, 30b) in the wire holding portion unit 31 (the code of the dimension D is not shown) is the distance between the adjacent rubber belt portions 101 in the belt sleeve 107. The dimension corresponding to the dimension d of is set at a predetermined ratio β. Therefore, the relational expression of D = β × d holds. The cutting position when the belt sleeve 107 is cut by the pair of wires (30a, 30b) is affected by the diameter dimension of the wires (30a, 30b), the deformation of the belt sleeve 107, and the like. Thereby, the dimension D of the distance between the pair of wires (30a, 30b) is set to be slightly smaller than the dimension d of the distance between the adjacent rubber belt portions 101. Therefore, the predetermined ratio β is set as a numerical value in the range of 0.85 to 0.95, for example.

In FIG. 16, when the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 are operated to cut out the coupled V-belt 100 from the belt sleeve 107, the belt sleeve 107 is formed by a pair of wires (30a, 30b). The pair of cutting lines (107a, 107b) at which the is cut is shown by the broken line. The pair of cutting lines (107a, 107b) are located at positions corresponding to the widthwise dimensions of the coupled V-belt 100 cut out from the belt sleeve 107 and at positions corresponding to the positions of the outer peripheral edges of the adjacent rubber belt portions 101. It is set.

The predetermined ratio β is such that a pair of wires (30a, 30b) arranged in parallel with a distance of dimension D (D = β × d) adjacent to the reinforcing cloth 102 of the belt sleeve 107 is a rubber belt portion 101. It is appropriately set to cut at a pair of cutting lines (107a, 107b) between the two. The above-mentioned predetermined ratio β is appropriately set, and the dimension D of the distance between the pair of wires (30a, 30b) is appropriately set to the dimension d of the distance between the adjacent rubber belt portions 101. Then, the belt sleeve 107 is cut by the pair of wires (30a, 30b) at the pair of cutting lines (107a, 107b). As a result, when the belt sleeve 107 is cut by the pair of wires (30a, 30b), the portion of the reinforcing cloth 102 between the adjacent rubber belt portions 101 is cut off.

FIG. 17 is a cross-sectional view showing a part of the coupled V-belt 100, and is a diagram showing a part of the cross section parallel to the width direction of the annular bonded V-belt 100. When the belt sleeve 107 is cut by the pair of wires (30a, 30b) along the pair of cutting lines (107a, 107b), the portion of the reinforcing cloth 102 between the adjacent rubber belt portions 101 is cut off. As a result, the generation of protruding portions is suppressed at the edge portions on both sides of the coupled V-belt 100 in the width direction. That is, at the edge portions on both sides of the coupled V-belt 100 in the width direction, the generation of the portion (protruding portion) of the reinforcing cloth 102 protruding outward in the width direction from the rubber belt portion 101 is suppressed.

[Control device]
The control device 14 shown in FIGS. 8, 11 and 13 is provided as a control unit for controlling the operation of the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 in the coupling belt forming device 1. As described above, the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 operate based on the control command from the control device 14.

The control device 14 includes a processor such as a CPU, a memory, an operation unit such as an operation panel or an operation panel operated by a user, an interface circuit, and the like. In the memory of the control device 14, a program for creating a control command for controlling the operation of the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 is stored. When the operation unit is operated by the user, the above program is read from the memory by the processor and executed. As a result, the above control command is created, and the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 operate based on the control command.

Based on the control command from the control device 14, the motor 28 rotates, and the drive torque is transmitted to the drive roll 21 via the belt drive mechanism 29. Then, as the drive roll 21 rotates, the driven roll 22 rotates and the belt sleeve 107 rotates. As a result, the belt sleeve 107 wound around the drive roll 21 and the driven roll 22 travels in the circumferential direction. Further, based on the control command from the control device 14, the ball screw motor 44b rotates by a predetermined number of times, and the moving plate 45 moves by a predetermined amount on the base portion 26.

Further, the bobbin motor 32 rotates based on the control command from the control device 14, and the drive torque is a pair of rotations in each of the pair of wire holding portions (31a, 31b) via the power transmission unit 33 and the power transmission unit 34. It is transmitted to the bobbin ((36a, 36b), (37a, 37b)). As a result, the tensioned portion of the wire (30a, 30b) runs along the linear direction between the pair of rotating bobbins ((36a, 36b), (37a, 37b)). Further, based on the control command from the control device 14, the ball screw motor 48b is rotated by a predetermined number of times, and the moving table 47 is moved by a predetermined amount on the moving plate 45. As a result, the wires (30a, 30b) traveling between the pair of rotating bobbins ((36a, 36b), (37a, 37b)) advance toward the belt sleeve 107 traveling in the circumferential direction, and the belt sleeve 107 Is cut in the circumferential direction to form a coupled V-belt 100.

The rotation direction of the bobbin motor 32 when the belt sleeve 107 is cut is controlled so as to be alternately repeated in both forward and reverse directions at a predetermined cycle as appropriate based on the control command from the control device 14. .. As a result, the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of the pair of wire holding portions (31a, 31b) rotate while alternately reversing the rotational directions of synchronous rotation. The rotational operation is controlled so that the tensioned portions of the wires (30a, 30b) are repeatedly reciprocated along the linear direction to travel.

In the present embodiment, a mode in which the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 are operated based on the control command from the control device 14 has been described as an example, but this may not be the case. In the coupling belt forming device 1, the control device 14 is not provided, and the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 may be operated based on the operation by the user.

[Method of forming a coupling belt]
Next, a method for forming a coupling belt according to an embodiment of the present invention will be described. FIG. 18 is a chart showing a method for forming a coupling belt according to an embodiment of the present invention. In the method of forming the coupling belt of the present embodiment shown in FIG. 18, a tubular belt sleeve 107 whose outer peripheral side is connected by a reinforcing cloth 102 in a state where a plurality of annular rubber belt portions 101 including rubber layers are arranged in parallel is provided. It is configured as a coupling belt forming method for cutting out and forming a coupling V-belt 100 in a state where a plurality of rubber belt portions 101 are coupled by cutting in the circumferential direction.

The coupling belt forming method of the present embodiment is carried out by operating the coupling belt forming device 1 according to the present embodiment. As shown in FIG. 18, the coupling belt forming method of the present embodiment includes a belt sleeve winding step S201, a cutting step S202, and a coupling belt removing step S204. The belt sleeve winding step S201 is carried out, then the cutting step S202 is carried out a plurality of times, and finally the coupling belt removing step S204 is carried out. By completing these steps, a plurality of coupled V-belts 100 are formed from one belt sleeve 107.

The belt sleeve winding step S201 is configured as a step of winding the belt sleeve 107 around the outer periphery of the rotating body (21, 22).

In the belt sleeve winding step S201, for example, in an offline state in which the rotating body (21, 22) is not supported by the drive unit 23 and the supporting unit (24, 25, 26), the outer circumference of the rotating body (21, 22) is not supported. The belt sleeve 107 is wrapped around the belt sleeve 107. Then, the rotating body (21, 22) around which the belt sleeve 107 is wound is installed so as to be supported by the drive unit 23 and the support unit (24, 25, 26).

Alternatively, in the belt sleeve winding step S201, the support of the rotating body (21, 22) by the support unit (24, 26) is released, and the rotating body (21, 22) is separated by the drive unit 23 and the support unit 25, respectively. The belt sleeve 107 is wound around the outer circumference of the rotating body (21, 22) while being supported in the holding state. Then, after the belt sleeve 107 is wound around the outer circumference of the rotating body (21, 22), the rotating body (21, 22) is supported by the support unit (24, 26).

The cutting step S202 includes a sleeve traveling step S205 and a wire traveling process S206. The sleeve traveling step S205 and the wire traveling process S206 are carried out at the same time. Then, in a state where the sleeve traveling step S205 and the wire traveling process S206 are simultaneously executed, the cutting mechanism 13 is operated to cut the belt sleeve 107 in the circumferential direction, and the annular coupling V-belt 100 is the belt sleeve 107. It is cut out from and formed.

The sleeve traveling step S205 is carried out by operating the sleeve traveling mechanism 11 based on a control command from the control device 14. Specifically, in the sleeve traveling step S205, the motor 28 rotates based on the control command from the control device 14, and the drive torque is transmitted to the drive roll 21 via the belt drive mechanism 29. Then, as the drive roll 21 rotates, the driven roll 22 rotates and the belt sleeve 107 rotates. As a result, the belt sleeve 107 wound around the drive roll 21 and the driven roll 22 travels in the circumferential direction.

As described above, in the sleeve traveling step S205, the rotating body (21, 22) is rotated in a state where the belt sleeve 107 is wound around at least a part of the outer circumference of the rotating body (21, 22) rotating around the axis. It is configured as a process of running the belt sleeve 107 in the circumferential direction.

The wire traveling step S206 is carried out by operating the wire traveling mechanism 12 based on the control command from the control device 14. Specifically, in the wire traveling step S206, the bobbin motor 32 rotates based on the control command from the control device 14, and the drive torque is applied to the pair of wire holding portions (the pair of wire holding portions) via the power transmission unit 33 and the power transmission unit 34. It is transmitted to a pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of 31a, 31b). As a result, the tensioned portion of the wire (30a, 30b) runs along the linear direction between the pair of rotating bobbins ((36a, 36b), (37a, 37b)).

As described above, the wire traveling step S206 is configured as a step of applying tension to each of the pair of wires (30a, 30b) and traveling the tensioned portions in parallel with each other along the linear direction. There is.

Further, in the cutting step S202, the cutting mechanism 13 is further operated based on the control command from the control device 14 while the sleeve traveling step S205 and the wire traveling process S206 are being executed at the same time. Specifically, first, based on the control command from the control device 14, the ball screw motor 44b rotates by a predetermined number of times, and the moving plate 45 moves by a predetermined amount on the base portion 26. Further, based on the control command from the control device 14, the ball screw motor 48b is rotated by a predetermined number of times, and the moving table 47 is moved by a predetermined amount on the moving plate 45. As a result, the wires (30a, 30b) traveling between the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of the pair of wire holding portions (31a, 31b) travel in the circumferential direction. Advance toward the belt sleeve 107. Then, a pair of wires (30a, 30b) are pressed against the reinforcing cloth 102 of the belt sleeve 107 between the adjacent rubber belt portions 101. As a result, the belt sleeve 107 is cut in the circumferential direction, and the coupled V-belt 100 is cut out from the belt sleeve 107 to be formed.

As described above, in the cutting step S202, a pair of traveling wires (30a, 30b) are pressed against the reinforcing cloth 102 of the traveling belt sleeve 107 between the adjacent rubber belt portions 101, so that the belt sleeve It is configured as a step in which 107 is cut in the circumferential direction to form a coupled V-belt 100.

When the belt sleeve 107 is cut in the circumferential direction over the entire circumference and the coupled V-belt 100 is formed, the ball screw motor 48b is rotated in the forward rotation direction by a predetermined number of times based on the control command from the control device 14. Rotates in the opposite direction. As a result, the moving table 47 moves on the moving plate 45 in a predetermined amount in a direction away from the rotating body 22. Then, the wires (30a, 30b) traveling between the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of the pair of wire holding portions (31a, 31b) travel in the circumferential direction. It moves in the direction of retracting from the belt sleeve 107. As a result, the cutting step S202 is temporarily completed.

Once the cutting step S202 is completed, the control device 14 determines whether or not the process of cutting the belt sleeve 107 over the entire width is completed (step S203). That is, in step S203, the process of cutting the belt sleeve 107 in the circumferential direction to form the coupled V-belt 100 is the total length in the width direction of the belt sleeve 107 (the direction indicated by the arrow B at both ends in FIGS. 8 and 9). It is performed a predetermined number of times over a predetermined number of times, and it is determined whether or not the entire belt sleeve 107 is cut into the plurality of coupled V-belts 100. In addition, the control device 14 covers the entire width of the belt sleeve 107 based on, for example, the dimension in the width direction of the belt sleeve 107 in the state before cutting and the integrated value of the rotation amount of the ball screw motor 44b, which are input in advance. To determine whether the disconnection process has been completed.

When it is determined in step S203 that the process of cutting the belt sleeve 107 over the entire width has not been completed (step S203, No), first, the ball screw motor 44b is predetermined based on the control command from the control device 14. The moving plate 45 is rotated by the number of times of the above, and the moving plate 45 is moved on the base portion 42 by a predetermined amount corresponding to the widthwise dimension of the coupled V-belt 100. Then, the cutting step S202 is performed again. As a result, the next coupled V-belt 100 is formed on the outer periphery of the rotating body 22.

When the cutting step S202 is performed as described above and the coupled V-belt 100 is newly formed, it is determined again by the control device 14 whether or not the process of cutting the belt sleeve 107 over the entire width is completed. (Step S203). As long as it is determined that the process of cutting the belt sleeve 107 over the entire width is not completed (steps S203, No), the above process is repeated. Then, by repeating the step S203 and the cutting step S202, a plurality of coupled V-belts 100 in a state of being wound around the outer periphery of the rotating body (21, 22) are formed.

FIG. 19 is a diagram showing a state in which the belt sleeve 107 is cut in the circumferential direction over the entire width by the coupling belt forming device 1 to form a plurality of coupling V-belts 100. Step S203 and cutting step S202 are repeated, and as shown in FIG. 19, when the belt sleeve 107 is cut over the entire width, the process of cutting the belt sleeve 107 over the entire width is completed in the control device 14. (Step S203, Yes). If it is determined as described above, the operation of the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 is stopped based on the control command from the control device 14.

As shown in FIG. 19, when the belt sleeve 107 is cut over the entire width and a plurality of coupling V-belts 100 are formed, the coupling belt removing step S204 is subsequently performed. In the coupling belt removing step S204, all of the plurality of coupling V-belts 100 wound around the outer periphery of the rotating body (21, 22) are removed from the rotating body (21, 22). By removing all the coupling V-belts 100 from the rotating bodies (21, 22), the coupling belt forming method shown in FIG. 18 is completed.

[Example]
Next, an embodiment of the present invention in which the coupling V-belt 100 is formed by the coupling belt forming apparatus 1 and the coupling belt forming method described above will be described together with a comparative example. FIG. 20 is a diagram showing a list of implementation conditions, implementation results, and the like regarding the embodiments of the present invention. In this embodiment, a pair of belt sleeves 107 are cut in the circumferential direction by wires (30a, 30b) to form a coupled V-belt 100. On the other hand, in the comparative example, the belt sleeve 200 was cut in the circumferential direction by a rotary blade described later to form a coupled V-belt 203. The coupled V-belt 203 is configured as a coupled V-belt 203 having a plurality of annular rubber belt portions 201 having a V-shaped cross section, and in the following description, the coupled V-belt 200 is also referred to as a coupled V-belt 203.

As for the shape of the rubber belt portion 101 of the coupled V-belt 100 in this embodiment, the C-shape among the types defined by the JIS standard of the V-belt is adopted. With reference to FIG. 16, the dimension d of the distance between the rubber belt portions 101 in the belt sleeve 107 of the embodiment was set to 3.3 mm. Further, as for the shape of the rubber belt portion 201 of the coupled V-belt 203 in the comparative example, the C-shape among the types defined by the JIS standard of the V-belt was adopted. With reference to FIGS. 1 and 2, the dimension d of the distance between the rubber belt portions 201 is set to 3.3 mm.

In the embodiment, as the wire 30 for cutting the belt sleeve 107, a diamond wire in which diamond abrasive grains are electrodeposited on the surface of a core wire 105 configured as a piano wire which is a metal wire made of carbon steel (hereinafter referred to as a diamond wire). , Called a diamond wire). The diamond wire was observed by SEM (Scanning Electron Microscope). FIG. 21 is a diagram showing an image of an SEM photograph of the surface of the wire 30 according to the embodiment in which diamond abrasive grains are fixed to the core wire 105 by electrodeposition.

With reference to FIG. 20, in the embodiment, the diameter dimension of the wire 30 was set to 120 μm, and the diameter of the diamond abrasive grains was set to 10 μm to 20 μm. Further, the wire traveling speed, which is the speed at which the diamond wire travels between the pair of rotating bobbins ((36a, 36b), (37a, 37b)), is set to a traveling speed in which the maximum value is 1500 m / min. The wire tension, which is the tension applied to the diamond wire between each of the pair of rotating bobbins ((36a, 36b), (37a, 37b)), was set to 35N.

Further, with reference to FIG. 15, the distance D between the pair of wires (30a, 30b) traveling in parallel with each other corresponds to the dimension d of the distance between the adjacent rubber belt portions 101 of the belt sleeve 107. It was set to 2.8 mm.

On the other hand, the comparative example shown in the table of FIG. 20 was carried out as an example for comparison with the above-mentioned example. In the comparative example, as a means for cutting the belt sleeve 200, a circular blade having a blade on the outer circumference (hereinafter referred to as a rotary round blade) was used. More specifically, in the comparative example, as the rotary round blade, a blade formed so as to be sharply pointed toward the outer peripheral side is provided, and the outer peripheral blade is the entire circumference of the outer peripheral edge of the circular rotary blade. The one provided over the above was used.

The cutting of the belt sleeve 200 is in the direction of pressing the rotary round blade toward the belt sleeve 200 wound around the outer circumference of the rotating body (21, 22), and the rotating shaft of the rotating body (21, 22). This was done by advancing and retreating along the direction orthogonal to the direction parallel to the axial direction of (21a, 22a).

Further, in the comparative example, the round blade rotation speed, which is the rotation speed of the rotary round blade, was set to 1200 rpm. The round blade diameter, which is the diameter of the rotary round blade, was set to 200 mm, and the round blade thickness, which is the thickness of the rotary round blade, was set to 2.5 mm. The angle of the blade at the tip of the rotating round blade was set to 8 degrees. In addition, a rotary round blade made of cemented carbide was used. In the comparative example, the coupled V-belt 203 was formed while applying cooling water.

Further, in the examples, the coupled V-belt 100 was formed without using cooling water, but in the comparative example, the amount of cooling water described in the column of "cooling water (liter / min)" in FIG. 20 was used. It was hung to form a coupled V-belt 203. The amount of water used in the comparative example was measured by collecting water applied to the rotary round blade in a container per minute. In the comparative example, cooling water having a water volume of 2.75 liters / min was applied.

According to the above-mentioned implementation conditions, the coupling V-belt 100 was cut out from the belt sleeve 107 in the embodiment and formed. More specifically, as shown in FIG. 16, the belt sleeve 107 was cut by a pair of wires (30a, 30b) at a pair of cutting lines (107a, 107b). Then, the dimension α of the portion (protruding portion) of the reinforcing cloth 102 protruding outward in the width direction from the rubber belt portion 101 was confirmed and measured. As a result of the measurement, the dimension α of the portion (protruding portion) of the reinforcing cloth 102 protruding outward in the width direction from the rubber belt portion 101 could be suppressed to a very small value of 0.1 mm to 0.3 mm. That is, it was possible to easily suppress the occurrence of protruding portions at the edge portions on both sides of the coupled V-belt 100 in the width direction.

On the other hand, in the comparative example, as shown in FIG. 1, the reinforcing cloth 202 of the belt sleeve 200 was cut at the cutting line 204. Then, the dimension α of the protruding portion 202a, which is the portion of the reinforcing cloth 202 protruding outward from the rubber belt portion 201 in the width direction, was confirmed and measured. As a result of the measurement, the dimension α of the protruding portion 202a was 1.3 mm to 2.0 mm, which was considerably larger than that of the embodiment. That is, it was confirmed that the dimension α of the protruding portion in the above-described embodiment can be suppressed to be larger than that in the comparative example.

As described above, by suppressing the dimension α of the protruding portion, when a plurality of coupling V belts 100 are wound around a pulley or the like of a rotating device and used at the same time, the coupling V traveling adjacent to each other is used. It is possible to prevent the belts 100 from coming into contact with each other. As a result, the runout of the coupled V-belt 100 during traveling becomes large due to the contact, and one coupled V-belt 100 rides on the other, or the inner peripheral side and the outer peripheral side are turned upside down and reversed. It is possible to avoid the occurrence of capsizing.

[Action and effect of the embodiment]
According to the coupling belt forming device 1 of the present embodiment, the sleeve traveling mechanism 11, the wire traveling mechanism 12, and the cutting mechanism 13 are operated, and the belt sleeve 107 is cut in the circumferential direction to form the coupling V-belt 100 (coupling belt 100). Will be done. Further, according to the coupling belt forming method of the present embodiment, the cutting step S202 including the sleeve traveling step S205 and the wire traveling step S206 is carried out, the belt sleeve 107 is cut in the circumferential direction, and the coupling V-belt 100 (bonding belt 100). Is formed. Then, according to the coupling belt forming apparatus 1 and the coupling belt forming method of the present embodiment, the pair of wires (30a, 30b) travel in parallel with each other along a linear direction which is a longitudinal direction of a tensioned portion. The pair of wires (30a, 30b) are pressed against the belt sleeve 107 traveling in the circumferential direction to cut the belt sleeve 107. Therefore, by setting the distance (distance) between the pair of traveling wires (30a, 30b) pressed against the belt sleeve 107 to a predetermined dimension appropriately corresponding to the dimension of the interval between the adjacent rubber belt portions 101. When cutting the belt sleeve 107, the portion of the reinforcing cloth 102 between the adjacent rubber belt portions 101 can be easily cut off. As a result, it is possible to easily suppress the occurrence of protruding portions at the edge portions on both sides of the coupled V-belt 100 in the width direction.

Further, by pressing the pair of traveling wires (30a, 30b) against the reinforcing cloth 102 of the traveling belt sleeve 107 and cutting the belt sleeve 107 in the circumferential direction, the edge portions on both sides of the coupled V-belt 100 in the width direction are formed. The bonded V-belt 100 with the protruding portion removed can be easily formed. Therefore, it is not necessary to perform the work of removing the protruding portion after the coupling V-belt 100 is cut out from the belt sleeve 107 and formed, and it is possible to suppress the deterioration of workability.

Therefore, according to the present embodiment, the coupling belt forming device 1 and the coupling belt forming device 1 and the coupling belt forming device 1 and the coupling belt forming apparatus 1 and the coupling belt forming apparatus 1 can suppress the deterioration of workability and can easily suppress the generation of protruding portions at the edge portions on both sides in the width direction of the coupling V-belt 100. A belt forming method can be provided.

Further, according to the coupling belt forming apparatus 1 and the coupling belt forming method of the present embodiment, when the reinforcing cloth 102 of the belt sleeve 107 is cut, the tension is not in the rotary blade provided on the outer periphery but in the linear direction (that is, the tension is applied). The reinforcing cloth 102 is cut by the wires (30a, 30b) running (in the longitudinal direction of the imparted portion). Therefore, the contact area between the reinforcing cloth 102 to be cut in the belt sleeve 107 and the wires (30a, 30b) as a cutting tool can be made extremely small as compared with the case where the cutting tool is a rotary blade. As a result, the temperature rise due to frictional heat during cutting of the belt sleeve 107 can be significantly suppressed. Further, since the temperature rise due to frictional heat during cutting of the belt sleeve 107 can be significantly suppressed, a cooling facility using water at the time of cutting becomes unnecessary. Therefore, it is possible to suppress an increase in the type and number of equipment required for forming the coupled V-belt 100 from the belt sleeve 107.

Further, according to the coupling belt forming apparatus 1 of the present embodiment, the belt sleeve 107 can be circulated in the circumferential direction in a state where the belt sleeve 107 is wound around a plurality of rotating bodies (21, 22). .. Therefore, even when the peripheral length of the belt sleeve 107 is relatively long (the peripheral length is long), the rotating body (21, 22) having a smaller diameter than the diameter of the tubular belt sleeve 107 can be used. The belt sleeve 107 can be easily traveled in the circumferential direction by the sleeve traveling mechanism 11 having a plurality of sleeves.

Further, according to the coupling belt forming apparatus 1 of the present embodiment, even when the circumferential length of the belt sleeve 107 is relatively long, the belt sleeve 107 is formed along the outer periphery of the rotating body (21, 22) having a small diameter. The belt sleeve 107 can be cut by pressing the pair of wires (30a, 30b) to be run against the running belt sleeve 107. Therefore, a pair of wires (30a, 30b) can be pressed against the belt sleeve 107 in the vicinity of the rotating body 22 having a small radius of curvature to cut the belt sleeve 107. Therefore, the contact area between the reinforcing cloth 102 to be cut in the belt sleeve 107 and the wires (30a, 30b) as a cutting tool can be further reduced, and the temperature rise due to frictional heat during cutting of the belt sleeve 107 can be further suppressed. can.

Further, according to the coupling belt forming apparatus 1 of the present embodiment, a structure for traveling in the circumferential direction so as to rotate the belt sleeve 107 in a state where the belt sleeve 107 is wound around a plurality of rotating bodies (21, 22) is driven. It can be realized by a simple structure using a pair of rotating bodies (21, 22) composed of a roll 21 and a driven roll 22.

Further, according to the coupling belt forming apparatus 1 of the present embodiment, a pair of rotating bobbins ((36a, 36b), (37a, 37b)) that rotate synchronously in each of the pair of wire holding portions (31a, 31b). By paying out the wire (30a, 30b) from one side and winding the wire (30a, 30b) on the other side, the portion to which the tension of the wire (30a, 30b) is applied is easily linearly applied while the tension is applied to the wire (30a, 30b). It can be run along. Then, according to the coupling belt forming apparatus 1 of the present embodiment, the long wire (30a, 30b) is discharged from one of the pair of rotating bobbins ((36a, 36b), (37a, 37b)) and wound on the other. The belt sleeve 107 can be cut while taking it. Therefore, when cutting the reinforcing cloth 102 of the belt sleeve 107, different parts of the long wire (30a, 30b) are continuously connected in order without using the same part of the wire (30a, 30b) intensively. Can be used. As a result, the time for each portion of the wire (30a, 30b) to be used for cutting becomes extremely short, and the cooling time of the wire (30a, 30b) due to heat dissipation after cutting can be secured sufficiently long. .. As a result, it is possible to efficiently suppress the accumulation of heat on the wires (30a, 30b), and further suppress the temperature rise due to frictional heat during cutting of the belt sleeve 107.

Further, according to the coupling belt forming apparatus 1 of the present embodiment, the pair of rotating bobbins ((36a, 36b), (37a, 37b)) rotates in synchronization with each other, and the rotation is repeated while alternately reversing the rotation direction. , The belt sleeve 107 can be efficiently cut by using long wires (30a, 30b) while continuously and repeatedly reciprocating. Further, since the long wire (30a, 30b) can be repeatedly reciprocated to cut the belt sleeve 107, the time required for each portion of the wire (30a, 30b) to be cut is extremely short. Moreover, the cutting work of the belt sleeve 107 can be efficiently performed while ensuring a sufficiently long cooling time of the wires (30a, 30b) due to heat dissipation after cutting. As a result, heat accumulation on the wires (30a, 30b) can be efficiently suppressed, and the temperature rise due to frictional heat during cutting of the belt sleeve 107 can be further suppressed, and the belt sleeve 107 can be cut for a long period of time. The work can be carried out continuously.

Further, according to the coupling belt forming apparatus 1 of the present embodiment, a wire (a wire) traveling along a direction parallel to the tangential direction of the outer periphery of the rotating body 22 with respect to the belt sleeve 107 traveling along the outer periphery of the rotating body 22. Since the 30a and 30b) are pressed against the belt sleeve 107, the cutting work by the wire (30a and 30b) can be efficiently and easily performed in the curved and traveling portion of the belt sleeve 107. That is, the belt sleeve 107 that runs curved along the outer circumference of the rotating body 22 is efficiently and easily driven by the wires (30a, 30b) that run in a straight line along the tangential direction of the curved portion of the belt sleeve 107. Can be disconnected.

[Modification example]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be variously modified and implemented as long as it is described in the claims. For example, the following modification may be implemented.

(1) In the above-described embodiment, a mode in which a diamond wire is used as a wire in the wire traveling mechanism has been described as an example, but this may not be the case. A wire other than the diamond wire may be used. For example, a piano wire in which the abrasive grains are not fixed on the surface may be used as the wire. Further, a piano wire in which abrasive grains of a material other than diamond abrasive grains are fixed on the surface may be used as the wire.

(2) In the above-described embodiment, the embodiment in which the sleeve traveling mechanism has a plurality of rotating bodies has been described as an example, but this may not be the case. The form of a sleeve traveling mechanism having only one rotating body around which the belt sleeve is wound may be implemented. As a form of the coupling belt forming device in which the sleeve traveling mechanism has only one rotating body, for example, a modification as shown in FIG. 22 may be implemented.

FIG. 22 is a diagram for explaining the coupling belt forming apparatus 2 according to the modified example, and is a front view of the coupling belt forming apparatus 2. In the following description of the coupling belt forming apparatus 2, the elements configured in the same manner as in the above-described embodiment and the elements configured in correspondence with the above-described embodiment are designated by the same reference numerals in the drawings. Or by quoting the same reference numerals, the description thereof will be omitted.

The coupling belt forming device 2 shown in FIG. 22 is different from the coupling belt forming device 1 of the above-described embodiment in the configuration of the sleeve traveling mechanism 50. The sleeve traveling mechanism 50 of the coupling belt forming device 2 includes a rotating body 21, a drive unit 23, and a support unit 24. However, unlike the sleeve traveling mechanism 11 of the coupling belt forming device 1, the sleeve traveling mechanism 50 is not provided with the rotating body 22 and the support units (25, 26). The sleeve traveling mechanism 50 is configured to rotate the rotating body 21 and travel the belt sleeve 107 in the circumferential direction in a state where the belt sleeve 107 is wound around the entire circumference of the rotating body 21. ing.

Further, in the coupling belt forming device 2, the cutting mechanism 13 has a pair of wires traveling in the wire traveling mechanism 12 with respect to the belt sleeve 107 that rotates together with the rotating body 21 and travels in the circumferential direction on the outer circumference of the rotating body 21. It is configured to press (30a, 30b). Then, the coupling belt forming device 2 cuts the belt sleeve 107 that rotates together with the rotating body 21 and travels in the circumferential direction on the outer circumference of the rotating body 21 in the circumferential direction to form the coupling V-belt 100 (coupling belt 100). It is configured in.

As in the above modification, the form of the coupling belt forming device 2 having the sleeve traveling mechanism 50 having only one rotating body 21 around which the belt sleeve 107 is wound may be implemented. Similar to the coupling belt forming apparatus 1 of the above-described embodiment, the coupling belt forming apparatus 2 of the above-described modification can also suppress the deterioration of workability and can prevent the coupling V-belt 100 from being deteriorated on both sides in the width direction. The generation of the protruding portion at the edge portion can be easily suppressed.

(3) In the above-described embodiment, the sleeve traveling mechanism has a pair of rotating bodies as a plurality of rotating bodies as an example, but this may not be the case. A form of a sleeve traveling mechanism having three or more rotating bodies around which a belt sleeve is wound may be implemented. As a form of the coupling belt forming device in which the sleeve traveling mechanism has three rotating bodies, for example, a modification as shown in FIG. 23 may be implemented.

FIG. 23 is a diagram for explaining the coupling belt forming apparatus 3 according to the modified example, and is a front view of the coupling belt forming apparatus 3. In the following description of the coupling belt forming apparatus 3, the elements configured in the same manner as in the above-described embodiment and the elements configured in correspondence with the above-described embodiment are designated by the same reference numerals in the drawings. Or by quoting the same reference numerals, the description thereof will be omitted.

The coupling belt forming device 3 shown in FIG. 23 is different from the coupling belt forming device 1 of the above-described embodiment in the configuration of the sleeve traveling mechanism 51. The sleeve traveling mechanism 51 of the coupling belt forming device 3 includes a rotating body (52, 53, 22), a drive unit 54, and a support unit (55, 25, 26). Then, the sleeve traveling mechanism 51 rotates the rotating body (52, 53, 22) with the belt sleeve 107 wound around the outer circumference of the rotating body (52, 53, 22), and rotates the belt sleeve 107 in the circumferential direction. It is configured to run on.

Each of the rotating body 52 and the rotating body 53 is configured in the same manner as the rotating body 21 of the coupling belt forming apparatus 1 of the above-described embodiment, except for the difference in the diameter dimension. The rotating body 52 includes a rotating shaft 21a, a rotating drum 21b, and a rotating shaft 52a, a rotating drum 52b, and an outer peripheral sleeve 52c corresponding to the rotating body 21, respectively, and rotates around the axis (around the rotating shaft 52a). It is configured as a rotating body. The rotating body 53 includes a rotating shaft 21a, a rotating drum 21b, and a rotating shaft 53a, a rotating drum 53b, and an outer peripheral sleeve 53c corresponding to the rotating shaft 21a, the rotating drum 21b, and the outer peripheral sleeve 21c, respectively, and rotates around the axis (around the rotating shaft 53a). It is configured as a rotating body.

The drive unit 54 is configured as a mechanism for rotationally driving the rotating body 52 and the rotating body 53. The drive unit 54 has an electric motor (not shown), and the drive torque from the electric motor is transmitted to two rotating bodies (52, 53) via two belt driving mechanisms, and the two rotating bodies (two rotating bodies (52, 53)). 52, 53) is configured to be rotationally driven.

Unlike the support unit 24 of the coupling belt forming device 1 of the above-described embodiment, the support unit 55 has two support mechanisms having a support arm 24b and a support cylinder 24c instead of one. .. Each of the above-mentioned support mechanisms in the support unit 55 is provided corresponding to each of the rotating body 52 and the rotating body 53. The support arm 24b and the support cylinder 24c in each support mechanism of the support unit 55 and the support arm 24b and the support cylinder 24c of the support unit 24 of the above-described embodiment have different dimensional configurations.

As in the above modification, the form of the coupling belt forming device 3 including the sleeve traveling mechanism 51 having three rotating bodies (52, 53, 22) around which the belt sleeve 107 is wound may be implemented. Further, a form of a coupling belt forming device including a sleeve traveling mechanism having four or more rotating bodies around which a belt sleeve is wound may be implemented. Similar to the coupling belt forming apparatus 1 of the above-described embodiment, the coupling belt forming apparatus 3 of the above-described modification can also suppress the deterioration of workability, and the coupling V-belt 100 (bonding belt 100) can be suppressed. It is possible to easily suppress the occurrence of protruding portions at the edge portions on both sides in the width direction.

(4) In the above-described embodiment, the wire traveling mechanism has been described by taking as an example a form in which one wire holding unit having a pair of wire holding units is provided, but this may not be the case. A form of a wire traveling mechanism having a plurality of wire holding unit units having a pair of wire holding portions may be implemented. As a form of the coupling belt forming apparatus in which the wire traveling mechanism has a plurality of wire holding unit units having a pair of wire holding portions, for example, a modification as shown in FIG. 24 or FIG. 25 may be implemented.

FIG. 24 is a diagram for explaining the coupling belt forming apparatus 4 according to the modified example, and is a front view of the coupling belt forming apparatus 4. In the following description of the coupling belt forming apparatus 4, the elements configured in the same manner as in the above-described embodiment and the elements configured in correspondence with the above-described embodiment are designated by the same reference numerals in the drawings. Or by quoting the same reference numerals, the description thereof will be omitted.

The coupling belt forming device 4 shown in FIG. 24 is different from the coupling belt forming device 1 of the above-described embodiment in the configuration of the wire traveling mechanism 56. The wire traveling mechanism 56 of the coupling belt forming device 4 includes a first wire traveling unit 12a and a second wire traveling unit 12b. Each of the first wire traveling unit 12a and the second wire traveling unit 12b is configured in the same manner as the wire traveling mechanism 12 of the coupling belt forming device 1 of the above-described embodiment. That is, the coupling belt forming device 4 is configured to include a wire traveling mechanism 56 configured to have two wire traveling mechanisms 12 of the coupling belt forming device 1 of the above-described embodiment.

Since the coupling belt forming device 4 has the first wire traveling unit 12a and the second wire traveling unit 12b configured in the same manner as the wire traveling mechanism 12 of the above-described embodiment, the pair of wire holding portions (31a, It has a plurality (two) of wire holding unit 31s having 31b).

As in the above modification, the embodiment of the coupling belt forming device 4 provided with the wire traveling mechanism 56 having a plurality (two) of wire holding unit 31 having a pair of wire holding portions (31a, 31b) is implemented. It is also good. Further, a form of a coupling belt forming device including a wire traveling mechanism having three or more wire holding unit units 31 may be implemented.

Similar to the coupling belt forming apparatus 1 of the above-described embodiment, the coupling belt forming apparatus 4 of the above-described modification can also suppress the deterioration of workability, and the coupling V-belt 100 (bonding belt 100) can be suppressed. It is possible to easily suppress the occurrence of protruding portions at the edge portions on both sides in the width direction. Then, according to the coupling belt forming apparatus 4 of the above-mentioned modification, the work of cutting the belt sleeve 107 in the circumferential direction and cutting out and forming the coupling V-belt 100 by the plurality of wire holding unit units 31 is simultaneously performed at a plurality of places. be able to. Therefore, the efficiency of the work of cutting the belt sleeve 107 in the circumferential direction to form the annular bonded V-belt 100 can be further improved.

FIG. 25 is a diagram for explaining the wire traveling mechanism 57 of the coupling belt forming device according to the modified example. In FIG. 25, only the wire traveling mechanism 57 according to the modified example is schematically shown. In the following description of the wire traveling mechanism 57, the elements configured in the same manner as in the above-described embodiment and the elements configured in correspondence with the above-described embodiment are designated by the same reference numerals in the drawings. , Or by quoting the same reference numeral, the description thereof will be omitted.

The wire traveling mechanism 57 shown in FIG. 25 has a plurality (three) of wire holding unit units 31 having a pair of wire holding portions (31a, 31b) instead of one, in that the coupling of the above-described embodiment is performed. It is different from the wire traveling mechanism 12 of the belt forming device 1. The wire traveling mechanism 57 includes a plurality of pairs (3 pairs) of a pair of wires (30a, 30b), a plurality of (three) wire holding unit units 31, a bobbin motor 32, a bobbin side power transmission unit 33, and a motor side. It is configured to include a power transmission unit 34 and a case 35. In FIG. 25, the case 35 is not shown.

Since the wire traveling mechanism 57 is provided with a plurality (three) of wire holding portions units 31, a pair of wire holding portions (31a, 31b) is also provided with a plurality of pairs (three pairs). That is, each of the plurality of wire holding unit 31 has a pair of wire holding portions (31a, 31b) that hold the pair of wires (30a, 30b), respectively. Then, in each of the plurality of wire holding unit 31, the wire (30a, 30b) is attached to the pair of rotating bobbins ((36a, 36b), (37a, 37b)) in each of the pair of wire holding portions (31a, 31b). Are wrapped around each other.

Further, the rotary bobbins (36a, 37a) of the plurality of wire holding unit 31 are connected by the connecting shaft 38 in a state of being arranged side by side in series along the axial direction of the connecting shaft 38. That is, the plurality of pairs (3 pairs) of rotating bobbins (36a, 37a) provided in the wire traveling mechanism 57 are connected by the connecting shaft 38 in a state of being arranged side by side in series along the axial direction of the connecting shaft 38. ing. Further, the rotary bobbin 36a and the rotary bobbin 37a of each wire holding unit 31 are also connected by the connecting shaft 38 in a state of being arranged side by side in series along the axial direction of the connecting shaft 38.

Further, the rotary bobbins (36b, 37b) of the plurality of wire holding unit 31 are connected by the connecting shaft 39 in a state of being arranged side by side in series along the axial direction of the connecting shaft 39. That is, the plurality of pairs (3 pairs) of rotating bobbins (36b, 37b) provided in the wire traveling mechanism 57 are connected by the connecting shaft 39 in a state of being arranged side by side in series along the axial direction of the connecting shaft 39. ing. Further, the rotary bobbin 36b and the rotary bobbin 37b of each wire holding unit 31 are also connected by the connecting shaft 39 in a state of being arranged side by side in series along the axial direction of the connecting shaft 39.

As in the above modification, there are a plurality (three) wire holding unit 31 having a pair of wire holding units (31a, 31b), and a plurality of pairs of rotating bobbins (36a, 36a, in the plurality of wire holding unit 31). 37a) or a form of a coupling belt forming apparatus including a wire traveling mechanism 57 in which each of a plurality of pairs of rotating bobbins (36b, 37b) are coaxially connected may be implemented. Further, the wire holding unit 31 has two or four or more, and a plurality of pairs of rotating bobbins (36a, 37a) or a plurality of pairs of rotating bobbins (36b, 37b) in the two or four or more wire holding unit 31. ) May be implemented as a coupling belt forming device including a wire traveling mechanism in which each of the above is coaxially connected.

Similar to the coupling belt forming apparatus 1 of the above-described embodiment, the coupling belt forming apparatus provided with the wire traveling mechanism 57 of the above-described modification can also suppress the deterioration of workability and the coupling V-belt 100. It is possible to easily suppress the occurrence of protruding portions at the edge portions on both sides of the (bonding belt 100) in the width direction. Then, according to the coupling belt forming apparatus provided with the wire traveling mechanism 57 of the above-mentioned modification, the work of cutting the belt sleeve 107 in the circumferential direction by the plurality of wire holding unit units 31 to cut out and form the coupling V-belt 100. Can be performed at multiple locations at the same time. Therefore, the efficiency of the work of cutting the belt sleeve 107 in the circumferential direction to form the annular bonded V-belt 100 can be further improved.

(5) In the above-described embodiment, each of the pair of wire holding portions in the wire traveling mechanism has a pair of rotating bobbins in which portions on both ends of one continuous wire are wound and rotated in synchronization with each other. The morphology has been described as an example, but this does not have to be the case. A form of a wire traveling mechanism may be implemented in which a pair of wire holding portions each having a pair of rotating bobbins in which wires constituting a closed loop in an annular shape are wound in a tense state and rotate synchronously are provided. Further, a wire traveling mechanism provided with a pair of wire fixing portions each having a pair of reciprocating vibrating portions that are fixed at both ends of one linearly extending wire and that perform reciprocating motion synchronously along the linear direction. May be implemented.

In the present invention, a tubular belt sleeve whose outer peripheral side is connected by a reinforcing cloth is cut in the circumferential direction in a state where a plurality of annular rubber belt portions including a rubber layer are arranged in parallel, and the plurality of rubber belt portions are joined. It can be widely applied with respect to a coupling belt forming apparatus and a coupling belt forming method for cutting out and forming a coupling belt in a state.

1 Coupling belt forming device 11 Sleeve traveling mechanism 12 Wire traveling mechanism 13 Cutting mechanism 21 Drive roll (rotating body)
22 Driven roll (rotating body)
30a, 30b Wire 100 Coupling V-belt (coupling belt)
101 Rubber belt 102 Reinforcing cloth 107 Belt sleeve

Claims (8)

A tubular belt sleeve whose outer peripheral side is connected by a reinforcing cloth is cut in the circumferential direction with a plurality of annular rubber belt portions each including a rubber layer arranged in parallel, and the plurality of rubber belt portions are joined together. A coupling belt forming device that cuts out and forms a belt.
A sleeve running that has a rotating body that rotates around an axis, rotates the rotating body in a state where the belt sleeve is wound around at least a part of the outer periphery of the rotating body, and causes the belt sleeve to travel in the circumferential direction. Mechanism and
A wire traveling mechanism having a pair of wires, applying tension to each of the pair of wires, and allowing the tensioned portions to travel parallel to each other along a linear direction.
The distance between the pair of traveling wires is set to a predetermined dimension corresponding to the dimension of the distance between the adjacent rubber belt portions, and the adjacent rubber belts are set with respect to the reinforcing cloth of the traveling belt sleeve. A cutting mechanism that cuts the belt sleeve in the circumferential direction by pressing the pair of traveling wires between the portions to form the connecting belt.
A coupling belt forming device, characterized in that it comprises. The coupling belt forming apparatus according to claim 1.
The sleeve traveling mechanism has a plurality of the rotating bodies, and at least one of the plurality of the rotating bodies is in a state where the belt sleeve is wound around a part of the outer periphery of each of the plurality of the rotating bodies. A coupling belt forming device, characterized in that the rotating body is rotationally driven and the belt sleeve is driven in the circumferential direction. The coupling belt forming apparatus according to claim 2.
The sleeve traveling mechanism has a pair of the rotating bodies as the plurality of the rotating bodies.
One of the pair of the rotating bodies is configured as a drive roll to be rotationally driven, and the other of the pair of the rotating bodies travels in the circumferential direction with the rotation of the drive roll. A coupling belt forming device, characterized in that it is configured as a driven roll that rotates with it. The coupling belt forming apparatus according to any one of claims 1 to 3.
The wire traveling mechanism has a pair of wire holding portions for holding each of the pair of the wires.
Each of the pair of wire holdings has a pair of rotating bobbins around which one continuous portion of the wire on both ends is wound and rotated synchronously.
In each of the pair of wire holding portions, the wire traveling mechanism discharges the wire from one of the pair of the rotating bobbins while applying tension to the wire between the pair of the rotating bobbins. A coupling belt characterized in that by winding the wire on the other side of the pair of the rotating bobbins, a tensioned portion of the wire runs along a linear direction between the pair of the rotating bobbins. Forming device. The coupling belt forming apparatus according to claim 4.
The wire traveling mechanism is a coupling belt forming device, characterized by having a plurality of wire holding unit units having the pair of wire holding portions. The coupling belt forming apparatus according to claim 4 or 5.
The pair of rotary bobbins are characterized in that by repeating rotation while alternately reversing the rotational directions of synchronous rotation, the tensioned portion of the wire is reciprocated along a linear direction. , Coupling belt forming device. The coupling belt forming apparatus according to any one of claims 1 to 6.
The cutting mechanism is characterized in that a pair of the wires traveling along a direction parallel to the tangential direction of the outer circumference of the rotating body is pressed against the belt sleeve traveling along the outer circumference of the rotating body. , Coupling belt forming device. A tubular belt sleeve whose outer peripheral side is connected by a reinforcing cloth is cut in the circumferential direction with a plurality of annular rubber belt portions each including a rubber layer arranged in parallel, and the plurality of rubber belt portions are joined together. It is a method of forming a connecting belt, which is formed by cutting out a belt.
A sleeve traveling step of rotating the rotating body and traveling the belt sleeve in the circumferential direction with the belt sleeve wrapped around at least a part of the outer circumference of the rotating body rotating around the axis.
A wire traveling process in which tension is applied to each of the pair of wires and the tensioned portions are traveled in parallel with each other along a straight line direction.
The distance between the pair of traveling wires is set to a predetermined dimension corresponding to the dimension of the distance between the adjacent rubber belt portions, and the adjacent rubber belts are set with respect to the reinforcing cloth of the traveling belt sleeve. A cutting step of cutting the belt sleeve in the circumferential direction by pressing the pair of traveling wires between the portions to form the connecting belt.
A method for forming a coupling belt, which comprises.

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