JP2550171B2 - Tray transport belt and manufacturing method thereof - Google Patents

Description

The present invention relates to a tray transport belt and a method for manufacturing the same.

[Prior Art] In recent years, in a spinning factory, a spinning process and a winder process are directly connected by a transporting means, and a full bobbin fried in the spinning process is transported to the winder process and a yarn is wound in the winder process. The method of transporting the empty bobbin afterwards to the spinning process again and recycling it is often adopted. In this case, the transport method using the peg tray is advantageous in simplifying the mechanism as compared with the method using the belt conveyor. . As the conveying means of this peg tray, for example, as disclosed in Japanese Utility Model Laid-Open No. 61-202471 or Japanese Patent Laid-Open No. 62-27278, a peg tray is inserted between a pair of opposing guide rails having a U-shaped cross section. In this state, a method in which the lower surface side of the peg tray is placed on a conveyor belt and conveyed is generally adopted. However, in the conventional transport method, the peg tray is simply placed on the transport belt,
When the conveyance path is provided with an inclination, it is limited to a gentle inclination, and it is impossible to convey the peg tray in an arbitrary posture, which leads to shortening of the conveyance path.

As a device for eliminating this inconvenience, Japanese Patent Laid-Open No. 62-180882
In the publication, a transmission belt (conveyor belt) is stretched along a desired path via a belt guide and a guide pulley and can be driven, and two guides slidably contacting the upper surface of a peg tray are provided along the transmission belt. There is also disclosed a transporting device for transporting the peg tray by driving the power transmission belt while elastically pressing the peg tray between the guide and the power transmission belt.

[Problems to be Solved by the Invention] In order to reliably convey the peg tray in a state of following the movement of the conveyor belt regardless of the traveling path of the conveyor belt, the frictional resistance between the conveyor belt and the peg tray is increased. There is a need to. In the apparatus disclosed in Japanese Patent Laid-Open No. 62-180882, the entire conveyor belt is made of the same material. Therefore, in order to ensure the conveyance of the peg tray, a conveyor belt having a large friction coefficient is used. There is a need. However, when the conveyor belt is made of a material having a large coefficient of friction, the frictional resistance between the conveyor belt and the belt guide also becomes large, and not only a large amount of conveying power is required, but also the conveyor belt and the belt guide due to friction between the conveyor belt and the belt guide. However, there is a problem in that the wear of the steel proceeds in a relatively short period of time.

The present invention has been made in view of the above problems, and an object of the present invention is to ensure that a peg tray for bobbin transfer or a tray on which another transfer object is placed is not only in the same plane but also in a three-dimensional transfer path. It is an object of the present invention to provide a tray transfer belt that can be transferred to a tray and a method for manufacturing the same.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, a low friction sliding contact is made between high friction contact transport belt layers that contact the bottom surface of a tray carrying a transport object. It has a three-layer structure in which belt layers are arranged, the sliding contact belt layer is located inside the contact transport belt layer at one end side in the width direction of the belt, and the end portions of both contact transport belt layers at the other end side. Was formed in a slanted shape toward the edge of the boundary surface with the sliding contact layer.

In addition, it has a two-layer structure consisting of a high-friction contact transfer belt layer that comes into contact with the bottom surface of the tray that holds the transferred object, and a low-friction sliding contact band layer having the same width as the contact transfer belt layer. , The end portion of the contact conveyance belt layer is slanted toward the end portion of the boundary surface with the sliding contact strip layer at one end side in the width direction of the belt, and the end portion of the sliding contact strip layer is contacted at the other end side It may be formed in a slanted shape toward the end of the boundary surface with the transport belt layer.

As a method for manufacturing a three-layered transport belt, a high-friction contact transport belt layer and a low-friction slide belt layer are sandwiched between the contact transport belt layers and have a width. The laminated layers are formed so that one end side in the direction is substantially flush with each other, and the corner portion of the contact conveyance band layer is cut off obliquely so that the end face of the contact conveyance band layer is located inside the end face of the sliding contact band layer at that one end side. There is a way.

[Operation] When the tray carrying belt of the present invention is used, the tray carrying belt is moved to a desired carrying path in a state where the low friction sliding contact strip layer is in contact with the urging member for urging the carrying belt to the tray side. It is stretched along. The tray is arranged such that the upper surface is in sliding contact with the two guide members and the bottom surface is in contact with the high-friction contact transfer belt layer of the tray transfer belt, and the tray is always in contact with the contact transfer belt layer of the tray transfer belt. It moves with the tray transport belt in contact with each other. Since the tray transport belt makes contact with the biasing member in the low friction friction contact strip layer,
Wear of the belt and the biasing member is reduced, and reliable tray transport is maintained for a long period of time.

Further, in the method for manufacturing the tray transport belt, one end face of the low friction sliding contact strip layer sandwiched between the high friction contact transport strip layers is formed to protrude from the end face of the contact transport strip layer. However, since the method of obliquely cutting off the corner portion of the contact transport belt layer is adopted, the tray transport belt can be formed extremely easily.

[Example 1] In the following, the present invention continuously runs along a spinning machine stand, and an empty bobbin placed on a conveyor device extending below a spindle rail is introduced into a pipe changer together with a peg tray. An embodiment embodied in a transfer device of a pipe replacement machine that performs replacement work will be described with reference to FIGS.

As shown in FIGS. 2 and 3, the pipe changer 1 is supported so as to be able to travel along a spinning machine base, and is driven by a pin 3 and a drive motor 4 which are provided on a rail 2 at predetermined intervals. The engagement action with 5 allows the vehicle to travel along the rail 2. On the conveyor belt 7 extending below the spindle rail 6, a peg tray 9 having a diameter substantially the same as the pitch of the spindle 8 and carrying a bobbin as a product is placed. Prior to the work, the empty bobbin-equipped peg tray 9A in which the empty bobbin E is inserted into the peg 9a is arranged on the conveyor belt 7 in a state substantially corresponding to the spindle 8.

As shown in FIG. 2, the lower part of the pipe changer 1 receives the empty bobbin peg tray 9A on the conveyor belt 7 into the pipe changer 1 and the peg tray 9B with a full bobbin on the conveyor belt 7. The delivery peg tray delivery plate 11 and the delivery peg tray delivery plate 11 are disposed before and after the pipe changer 1 in the traveling direction. The full bobbin-equipped peg tray 9B in which the full bobbin F is inserted into the peg 9a in the pipe changer 1 is delivered onto the conveyor belt 7 by the peg tray delivery plate 11.

A motor 12 is provided on the front side of the pipe changer 1 (the side facing the spinning machine).
A twisting and conveying device 15 having a conveying belt 13 and a pair of linear guide members 14 driven by is arranged, and the empty bobbin-attached peg tray 9A taken in by the peg tray taking-in plate 10 is of the twisting and conveying device 15. By the action, it is conveyed to a position above the full bobbin F on the spindle 8 and corresponding to the full bobbin F, and at this conveyance arrangement position, the empty bobbin E
After being taken out, the full bobbin F is inserted into the peg 9a at a position almost at the same height as the lower part of the spindle 8 to form a peg tray 9B with a full bobbin, which is conveyed to a position corresponding to the peg tray transfer plate 11. Then, it is delivered onto the conveyor belt 7. The conveyor belt 13 of the twisting and conveying device 15 has a portion that runs substantially parallel to the conveyor belt 7, a portion that runs substantially parallel to the lower portion of the spindle 8, and a full bobbin F on the spindle 8. It is wound around a large number of guide pulleys 16 so as to have a portion that runs parallel to the spindle rail 6 above.
The portion that runs parallel to the conveyor belt 7 is set so as to match the traveling direction of the pipe changer 1.

A traveling body 17 is slidably supported in the central portion of the pipe changer 1 by support shafts 18 and 19 in the traveling direction of the pipe changer 1, and an empty bobbin conveyed above the full bobbin F on the spindle 8. While removing the empty bobbin E from the attached peg tray 9A,
An empty bobbin removing / inserting device 20 for inserting the empty bobbin E into the spindle 8 from which the full bobbin F has been lifted, and a peg tray 9 that has been lifted up from the spindle 8 and has been conveyed to the same height as the lower part of the spindle 8. The traveling body 17 is equipped with a full bobbin lifting / inserting device 21 for inserting a full bobbin into the peg 9a. The traveling body 17 is the screw roller 5
The support arm 25 of the empty bobbin gripping device 24, which constitutes the empty bobbin removing / inserting device 20, is reciprocally moved by the cam lever 23 that is reciprocally rocked by the cam 22 operatively connected to
26, a full bobbin lifting and inserting device 21 operatively connected to the screw roller 5 via a gear mechanism and a cam mechanism (not shown).
The supporting arm 28 of the full bobbin gripping device 27 constituting the above is also operatively connected to the screw roller 5 through its supporting shaft 29, a gear mechanism (not shown) and a cam mechanism. As a result, the empty bobbin removing / inserting device 20 and the full bobbin removing / inserting device 21 are driven in synchronization with the reciprocating motion of the traveling body 17. In addition, 30 (third
(Shown in the figure) is gripped by the empty bobbin removing / inserting device 20. Reference numeral 31 is a support member that supports the top of the empty bobbin E on the empty bobbin-equipped peg tray 9A, and 31 is a peg tray position restricting piece that is driven by a rotary solenoid 32 and is rotatable on the transport path.

As shown in FIG. 1, the flat belt constituting the conveyor belt 13 is made of a material such as soft rubber having a large friction coefficient, and a material having a small friction coefficient such as nylon between the high friction friction contact conveyor belt layers 13a. Is formed in a three-layer structure in which the low friction sliding contact strip layer 13b is arranged, and the sliding contact strip layer 13b is contact-transported on one end side (the upper side in FIG. 1) in the width direction of the transport belt 13. It is located inward of the belt layer 13a, and is formed in a slanted shape in which the end portions of the two contact transfer belt layers 13a on the other end side are directed to the boundary surface edge portion with the sliding contact belt layer 13b. On the rear wall 1a of the pipe changer 1, a pair of guide pieces 33 for guiding the conveyor belt 13 to move along a desired conveying path are fixed by screws 34 at appropriate intervals. The guide member 14 is a conveyor belt 13
Is fixed to a support bracket 35 fixed at appropriate intervals along the traveling path of the peg tray 9 so as to sandwich the peg 9a of the peg tray 9 and the peg tray 9 is sandwiched between the conveyor belt 13 and the guide member 14. It is set up. A state in which a slide guide 36 that guides the conveyor belt 13 by contacting the sliding contact layer 13b between the guide pieces 33 presses and urges the conveyor belt 13 toward its width direction, that is, the guide member 14 side by the action of a pressing spring 37. It is installed in.

Next, the operation of the device configured as described above will be described.
When the spinning machine stops due to the full pipe command, the pipe changer 1 stopped at the machine base end starts traveling at a constant speed, the motor 12 of the twisting and conveying device 15 starts driving, and the conveying belt 13
Starts moving in the direction of the arrows in Figs. Under this condition, the empty bobbin-equipped peg tray 9A on the conveyor belt 7 is taken into the pipe changer 1 by the engaging action with the peg tray taking-in plate 10. The peg tray with empty bobbin 9A installed in the pipe changer 1 is the peg tray intake plate 10
The peg 9a is introduced between the guide members 14 arranged in the vicinity of, and is tilted from the upright posture to a substantially horizontal posture according to the twisted shape of the guide member 14. As a result, the bottom surface of the empty bobbin-attached peg tray 9A comes into contact with the edges of the pair of contact transfer belt layers 13a forming the transfer belt 13, and is pressed by the pressing spring 37 from the transfer belt 13 to the guide member 14 side. . Therefore, the empty bobbin-attached peg tray 9A is pressed against the contact conveyance belt layer 13a of the conveyance belt 13 by the reaction force from the guide member 14, and the conveyance belt 13 and the guide member 14 cooperate to bring the peg tray 9A above the pipe changer 1 in a horizontal posture. Be transported to.

A peg tray with an empty bobbin conveyed above the pipe changer 1.
9A is subjected to the position regulation action of the position regulation piece 31, and under this state, the empty bobbin E on the peg tray 9A with an empty bobbin is removed from the peg 9a by the empty bobbin removing / inserting device 20. The full bobbin F on the spindle 8 is pulled up by the full bobbin pull-up insertion device 21 and the empty bobbin pull-out insertion device 20 while the traveling body 17 travels in the direction opposite to the traveling direction of the pipe changer 1. The empty bobbin E is the spindle 8
Inserted on top. During this time, the peg tray 9 from which the empty bobbin E has been removed is transported to the transport path at the height position corresponding to the spindle rail 6 by the cooperation of the transport belt 13 and the guide member 14, and the position restricting piece of the traveling body 17 is also transported. The full bobbin F pulled up by the full bobbin pulling-up / inserting device 21 is inserted into the peg 9a by the position regulating action of 38. The full bobbin-equipped peg tray 9B is conveyed to the peg tray delivery plate 11 by the cooperation of the conveyor belt 13 and the guide member 14, and the full bobbin F is formed by the twisted shape of the guide member 14 in the vicinity thereof and the engagement action with the peg tray delivery plate 11. Is transferred from the horizontal posture to the vertical posture and delivered onto the conveyor belt 7.

The bottom of the peg tray 9A with an empty bobbin that is conveyed upward by the cooperation of the conveyor belt 13 and the guide member 14 is in contact with only the edge of the contact belt layer 13a having high friction, and the slide guide 36 has low friction. Only the edge of the elastic sliding contact layer 13b contacts. With such a contact structure, even when a pressing spring 37 having a spring characteristic capable of generating a large frictional resistance required between the bottom surface of the empty bobbin-attached peg tray 9A and the conveyor belt 13 is adopted, the pressing spring 37 is pressed. The frictional resistance in the contact area between the slide guide 36 responsible for the transmission of the action and the sliding contact band layer 13b is suppressed to a low value. Therefore, as the transport belt 13 travels, the empty bobbin-attached peg tray 9A is transported while reliably following the transport belt 13. Moreover, the effect of preventing wear between the slide guide 36 and the conveyor belt 13 is also greatly improved.

[Embodiment 2] Next, an example of a method of manufacturing the conveyor belt 13 having the above-described structure will be described with reference to FIG.

The manufacturing process of the conveyor belt 13 includes a first step (FIG. 5 (a)): a belt-shaped member 39 made of a material having a large friction coefficient such as rubber, which constitutes a highly frictional contact conveying belt layer, and a low frictional material. A strip-shaped member 40, which is made of a relatively hard material having a small friction coefficient such as nylon, which forms the sliding contact strip layer, and has a narrower width than the strip-shaped member 39, and the narrow strip-shaped member 40 is sandwiched between the two strip-shaped members 39. In a state where both side edges of the strip-shaped member 40 are inside the side edges of the two strip-shaped members 39, the second step (FIG. 5 (b)): strip-shaped members laminated in three layers 41
Is separated from its center into two belts 42, and the third step (Fig. 5 (c)): diagonally cut off the corners of both contact conveyance belt layers 13a on the separated sides of each belt 42. It consists of steps.

Although it is relatively troublesome to laminate the strip-shaped members 39 and 40 in three layers and to bond them so that one side edge thereof is flush, in this embodiment, the strip-shaped members 41 laminated in three layers are separated. Thus, the entire surface can be easily formed, and the two belts 42 can be formed at once. Further, the sliding contact strip layer 13 having a low friction property at one side edge of the belt 42 is formed by a simple operation of obliquely cutting off the corners of the contact transport strip layer 13a having a rectangular cross section.
The end surface of b is located outside the end surface of the contact transfer belt layer 13a in the width direction of the transfer belt 13.

Third Embodiment Next, a third embodiment will be described with reference to FIG. In this embodiment, the conveyor belt 13 is replaced by a conveyor for carrying a peg tray for carrying a bobbin, and a recess 44 for mounting a product (bin, can, etc.) 43 is placed.
It is different from the first embodiment in that a is applied to a device for transporting a tray 44 formed on the upper surface. Also in this embodiment, as in the first embodiment, the conveyor belt 13 is a slide guide.
The tray 44 is urged by the pressing spring 37 via the direction 36 so as to press the tray 44 toward the guide member 14 side.
The cooperation of 14 allows the conveyed object 43 to be conveyed along a predetermined conveying path while changing its posture. A leaf spring may be used as the pressing spring 37 instead of the coil spring.

The present invention is not limited to each of the above-described embodiments. For example, as shown in FIG. 7, the conveyor belt 13 is configured so that the contact conveyor belt layer 13a surrounds one side edge of the sliding contact belt layer 13b. Or as shown in FIG. 8, the conveyor belt 13 is formed in a two-layer structure of a contact conveyor belt layer 13a and a sliding contact belt layer 13b having the same width,
The contact conveyor belt layer 13 on one end side in the width direction of the conveyor belt 13.
The end portion of a is formed in a slant shape toward the boundary surface with the sliding contact strip layer 13b, and the end portion of the sliding contact band layer 13b is formed in a slant shape toward the end surface of the boundary surface with the contact transport strip layer 13a on the other end side. You may. Further, the end of the slope 45 does not necessarily have to coincide with the end of the boundary surface between the two belt layers 13a and 13b. As shown in FIGS. The band layer 13b may be formed in a shape in which the end portion is cut out. When manufacturing the conveyor belt 13 in which the contact conveyor belt layer 13a and the sliding contact belt layer 13b are laminated in three layers, the belt 42 is placed in a state where both side edges are flush with each other as shown in FIG. 10 (a). By forming a corner portion of the contact conveyance belt layer 13a at one side edge of the belt 42 in a slanted shape, and notching an end surface of the sliding contact strip layer 13b in a V shape at the other side edge,
You may form the conveyance belt 13 of a cross-sectional shape shown in FIG.10 (b). When this manufacturing method is adopted, the strip-shaped member 3
The conveyor belt 13 can be formed from the belt 42 obtained by separating the belt-shaped member 41, which is formed by widening 9,40 and bonded in three layers, into a plurality of belts. Manufacturing is easy.

[Advantages of the Invention] As described in detail above, when the conveyor belt of the present invention is used, the positional relationship between the conveyor belt and the guide member for guiding the tray carrying the conveyed object and the conveyor belt can be appropriately set to achieve high friction. Contact The contact belt layer always contacts the bottom of the tray, and the low friction friction contact belt layer contacts the member that presses and urges the conveyor belt toward the guide member. Also in this case, the tray can be reliably transported, and wear due to friction between the transport belt and the pressing bias member can be reduced.

Further, according to the manufacturing method of the third aspect, it becomes easy to manufacture the conveyor belt formed by laminating three layers.

[Brief description of drawings]

1 to 4 show an embodiment in which the conveyor belt of the present invention is used in a pipe changing machine of a spinning machine, and FIG. 1 is an enlarged sectional view taken along line AA of FIG. 4, FIG. Is a schematic perspective view showing the relationship between the pipe changer and the spinning machine, FIG. 3 is a back cross-sectional view of the pipe changer, and FIG. 4 is a side view showing the support state of the guide member and the conveyor belt.
FIG. 5 is a view showing a manufacturing process of the conveyor belt, FIG. 6 is a sectional view of an embodiment in which the conveyor belt is used in another conveyor, and FIG.
9 to 9 are cross-sectional views showing a modified example of the conveyor belt, and FIG. 10 is a view showing a manufacturing process of another manufacturing method. Peg tray …… 9, conveyor belt …… 13, contact conveyor belt layer …… 13a, sliding contact belt layer …… 13b, guide member …… 14, guide piece …… 33, slide guide …… 36, pressure spring …… 37 , Band-shaped members ...... 39 to 41, belts ...... 42, conveyed items …… 43, trays …… 44, recesses …… 44a, slopes …… 45.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Haruka Nakamura Inventor Haruka, 2-chome, Toyota-cho, Kariya City, Aichi Prefecture Toyota Industries Corporation (56) Reference JP 62-180882 (JP, A) JP Sho 63-8177 (JP, A) Jikkouhei 6-465 (JP, Y2)

Claims (3)

(57) [Claims] 1. A belt having a three-layer structure in which a low friction sliding contact strip layer is arranged between high friction contact transport strip layers contacting the bottom surface of a tray carrying a conveyed product, and a belt width. The sliding contact strip layer is located inside the contact transport strip layer on one end side in the direction, and the end portions of both contact transport strip layers are inclined toward the boundary surface end portion with the sliding contact strip layer on the other end side. The formed tray transport belt. 2. A two-layer structure comprising a high-friction contact transfer belt layer that comes into contact with the bottom surface of a tray carrying a conveyed product, and a low-friction sliding contact belt layer having the same width as the contact transfer belt layer. Have
The one end of the belt in the width direction of the belt is slanted toward the end of the boundary surface with the sliding contact strip layer, and the other end of the contact transport is the end of the sliding contact strip layer. Belts for transporting trays each formed in a slanting shape toward the end of the boundary surface with the belt layer. 3. A high friction contact transfer belt layer and a low friction slide contact belt layer are sandwiched between the contact transfer belt layers, and one end side in the width direction is substantially flush. To form a laminated layer,
A method for manufacturing a tray transport belt, wherein a corner portion of a contact transport belt layer is obliquely cut off so that the end surface of the contact transport belt layer is located inside the end surface of the sliding contact belt layer on one end side thereof.