JP6436751B2 - Yarn winding device - Google Patents

Description

  The present invention relates to a yarn winding device that winds a plurality of yarns around a plurality of bobbins while traversing the plurality of yarns.

  For example, Patent Document 1 discloses a yarn winding device that winds a plurality of yarns around a plurality of bobbins while traversing them, and produces a plurality of packages. In this yarn winding device, a plurality of traverse guides are provided to traverse a plurality of yarns. And since the drive mechanism for reciprocating the traverse guide is configured to be provided for each traverse guide, the number of parts tends to increase.

  Therefore, in order to reduce the number of parts, one common drive mechanism is provided for a plurality of traverse guides that traverse a plurality of yarns, such as a yarn winding device described in Patent Document 2, for example. It is possible. However, in such a configuration, vibration caused by ribbon winding may be a problem. Hereinafter, this point will be described in detail.

JP 2010-163250 A JP 2009-74219 A

  While winding the yarn, the traverse angle (traverse speed) of the yarn is substantially constant, whereas the rotation speed of the bobbin holder that holds the bobbin is such that the winding speed is substantially constant. Decreases in inverse proportion to. For this reason, the ratio (wind ratio) between the number of rotations of the bobbin holder per unit time (bobbin holder rotation number) and the number of yarns reciprocating in the winding region per unit time (traverse frequency) changes gradually. When the wind ratio becomes a small integer ratio, so-called “ribbon winding” occurs in which the yarn is repeatedly wound at substantially the same position.

  FIG. 8 is a schematic diagram for explaining ribbon winding, and specifically, is a surface development view of the package P when the bobbin holder rotation speed [rpm]: traverse frequency [cpm] = 2: 1. That is, FIG. 8 shows a winding path of the yarn when the traverse is performed once while the package P is rotated twice (when the traverse guide is reciprocated once). In one traverse, the yarn starts from the start point S, is wound in the order of the trajectories T1, T2, and finally reaches the end point E (actually substantially the same position as the start point S).

  At this time, when the yarn is repeatedly wound around the trajectories T1 and T2, the yarn rises on the trajectories T1 and T2. In particular, at the intersection C where the trajectories T1 and T2 intersect with each other, the yarn swells greatly locally. For this reason, the contact roller that rotates while being in contact with the package P is pushed up by the intersection C, and vibration is generated. When the wind ratio is not an integer ratio, the start point S and the end point E in FIG. 8 do not coincide with each other, and the winding locus is deviated, so that ribbon winding does not occur.

  Here, when a common drive mechanism is provided for a plurality of traverse guides as in the yarn winding device of Patent Document 2, each traverse guide has the same position in each winding region at the same timing. It reciprocates so as to pass, that is, in the same phase. For this reason, the position of the intersection C formed in each of the plurality of packages P has the same phase. If it does so, all the intersection C of the several package P will push up a contact roller at the same timing, and there existed a problem that a vibration became large.

  In view of the above problems, an object of the present invention is to reduce vibration while reducing the number of parts in a yarn winding device that winds a plurality of yarns around a plurality of bobbins while traversing the plurality of yarns.

  A first aspect of the present invention is a yarn winding device for winding a plurality of yarns around a plurality of bobbins while traversing the plurality of yarns, the bobbin holder rotating with the plurality of bobbins attached thereto, A traverse device having a plurality of traverse guides for holding yarns, a mounted portion to which the plurality of traverse guides are mounted in common, and a drive unit for reciprocating the mounted portions in the axial direction of the bobbin holder; A control device that controls the operation of the traverse device, and the control device controls the drive unit so that the traverse angles of the plurality of yarns traversed by the traverse device are 1 degree or less. It is characterized by doing.

  In the first aspect of the present invention, a plurality of traverse guides are commonly attached to the attached portion, and a drive unit that reciprocates the attached portion is provided. For this reason, it is only necessary to provide one mounted portion and one drive portion for a plurality of traverse guides, and the number of parts can be reduced. In addition, by setting the traverse angle of the plurality of yarns to 1 degree or less, the occurrence of ribbon winding can be suppressed as will be described in detail later, and consequently vibration caused by ribbon winding can be reduced. it can. Thus, according to the first aspect of the present invention, it is possible to reduce vibration while reducing the number of parts.

  A second aspect of the present invention is a yarn winding device for winding a plurality of yarns on a plurality of bobbins while traversing the plurality of yarns, the bobbin holder rotating with the plurality of bobbins attached thereto, A traverse device having a plurality of traverse guides for holding yarns, a mounted portion to which the plurality of traverse guides are mounted in common, and a drive unit for reciprocating the mounted portions in the axial direction of the bobbin holder; A control device for controlling the operation of the traverse device, wherein a maximum winding diameter of a package wound around the bobbin is φ150 mm or less, and the control device is configured to control the plurality of yarns traversed by the traverse device. The drive unit is controlled so that the traverse angle is 2 degrees or less.

  In the second aspect of the present invention, a plurality of traverse guides are commonly attached to the attached portion, and a drive unit that reciprocates the attached portion is provided. For this reason, it is only necessary to provide one mounted portion and one drive portion for a plurality of traverse guides, and the number of parts can be reduced. In addition, by setting the maximum winding diameter of the package to φ150 mm or less and the traverse angle of the plurality of yarns to 2 degrees or less, the occurrence of ribbon winding can be suppressed as described in detail later. Vibration caused by ribbon winding can be reduced. Thus, according to the second aspect of the present invention, it is possible to reduce vibration while reducing the number of parts.

  Further, a third aspect of the present invention is a yarn winding device for winding a plurality of yarns while traversing a plurality of yarns, wherein the bobbin holder rotates with the plurality of bobbins attached thereto, A traverse device having a plurality of traverse guides for holding a plurality of yarns, a mounted portion to which the plurality of traverse guides are mounted in common, and a drive unit for reciprocating the mounted portions in the axial direction of the bobbin holder And a control device for controlling the operation of the traverse device, wherein the spandex yarn is wound as the yarn.

  In the third aspect of the present invention, a plurality of traverse guides are attached to the attached portion in common, and a drive unit that reciprocates the attached portion is provided. For this reason, it is only necessary to provide one mounted portion and one drive portion for a plurality of traverse guides, and the number of parts can be reduced. In addition, by making the type of yarn to be wound into a spandex yarn, which is a kind of elastic yarn, the package becomes rich in elasticity, and even if ribbon winding occurs, vibrations resulting from ribbon winding are absorbed by the package. be able to. Thus, according to the third aspect of the present invention, it is possible to reduce vibration while reducing the number of parts.

  Here, the present invention is particularly effective when the bobbin holder is cantilevered at one end in the axial direction and the bobbin can be attached and detached from the other end in the axial direction of the bobbin holder.

  In such a case, while there is an advantage that the bobbin holder can be easily attached to and detached from the bobbin holder, there is a problem that vibration tends to increase because the bobbin holder is cantilevered. However, according to the present invention, since vibration can be reduced as described above, vibration does not become a problem even when the bobbin holder is cantilevered.

  The traverse device includes a drive pulley as the drive unit, and an endless belt wound around a plurality of pulleys including the drive pulley as the attached portion, and the endless belt includes the drive pulley. It is preferable that the belt is wound around the pulley with a winding angle of 90 degrees or more.

  As described above, the endless belt is driven by the driving pulley, and the contact area between the driving pulley and the endless belt can be increased by winding the endless belt around the driving pulley at a winding angle of 90 degrees or more. The output from the drive pulley can be efficiently transmitted to the endless belt. Therefore, it is possible to accurately control the operations of the plurality of traverse guides attached to the endless belt.

  In addition, it is preferable that at least one pressing member that presses the endless belt toward an inner side of a closed region formed by the endless belt is provided between the drive pulley and the other pulley.

  By providing such a pressing member, an appropriate tension can be applied to the endless belt, and the winding angle of the endless belt with respect to the drive pulley can be further increased. Therefore, the output from the drive pulley can be more efficiently transmitted to the endless belt, and the operations of the plurality of traverse guides attached to the endless belt can be controlled with higher accuracy.

  Further, the number and length of the bobbins attached to the bobbin holder can be changed, and the control device adjusts a range in which the attached portion is reciprocated in the axial direction according to the length of the bobbin. Is preferred.

  By changing the number and length of bobbins attached to the bobbin holder, different types of packages can be produced, and the versatility of the apparatus is improved. Furthermore, since the range of the reciprocating movement of the mounted portion, that is, the range of reciprocating movement of the traverse guide (yarn winding range) is adjusted by the control device, even when the type of bobbin is changed, The traverse device can be used as it is.

In the yarn winding device according to the present invention, the yarn traverse angle during winding is set to 1 degree or less, or the maximum winding diameter of the package is set to φ150 mm or less, and the yarn traverse angle during winding is set. The vibration caused by the ribbon winding can be reduced by setting it to 2 degrees or less or winding the spandex yarn as a yarn.

It is a mimetic diagram of a yarn winding device concerning an embodiment of the present invention. It is an enlarged view of a traverse guide. It is a control block diagram of a yarn winding device. It is a graph which shows an example of transition of a wind ratio. It is a schematic diagram at the time of changing the kind of bobbin. It is a schematic diagram which shows the 1st modification of a traverse apparatus. It is a schematic diagram which shows the 2nd modification of a traverse apparatus. It is a schematic diagram for demonstrating ribbon winding.

(Overall configuration of yarn winding device)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of a yarn winding device according to an embodiment of the present invention. The yarn winding device 1 of the present embodiment is a device for winding a yarn Y made of a synthetic fiber such as a multifilament or a monofilament, which is spun from a plurality of (in this case, four) spinning units (not shown). is there. The plurality of yarns Y spun from the spinning section are respectively sent to the yarn winding device 1 through the fulcrum guide 90 and are traversed by the traverse guide 37 to each of a plurality of (here, four) bobbins B. A plurality (four in this case) of packages P is wound up.

  The yarn winding device 1 mainly includes a rectangular parallelepiped machine base 10, a support beam 20 extending leftward from the machine base 10, a traverse device 30 and a contact roller 40 supported by the support beam 20. And a pair of bobbin holders 50 that are cantilevered by a turret 13 provided on the machine base 10 and hold a plurality of bobbins B.

  A control device 11 for controlling the operation of the yarn winding device 1 is mounted on the machine base 10, and various conditions relating to winding and the like are controlled by an operator operating a setting unit 12 such as a keyboard. 11 can be entered. A disc-shaped turret 13 is provided on the left side surface of the machine base 10, and this turret 13 is rotationally driven by a turret motor 14 (see FIG. 3). From the turret 13, a pair of upper and lower bobbin holders 50 are extended leftward.

  The support beam 20 extends leftward from the left side surface of the machine base 10 and has a support surface 21 to which the traverse device 30 is attached and a pair of support portions 22 that protrude downward from the left and right ends of the support beam 20. . The pair of left and right support portions 22 rotatably support the contact roller 40. The support beam 20 is configured to be movable up and down with respect to the machine base 10 by an elevator mechanism (not shown), and a plurality of bobbins in which the contact roller 40 is attached to the upper bobbin holder 50 as the support beam 20 moves up and down. It can be separated from B.

  The traverse device 30 is a device that traverses the yarn Y by the traverse guide 37. Details of the traverse device 30 will be described later.

  The contact roller 40 extends in the left-right direction, is rotatably supported by a pair of left and right support portions 22 formed on the support beam 20, and is positioned below the traverse device 30. As described above, when the support beam 20 moves up and down, the contact roller 40 comes into contact with and separates from the plurality of bobbins B mounted on the bobbin holder 50 located on the upper side. The contact roller 40 contacts the outer peripheral surface of the package P and adjusts the shape of the package P by rotating while applying a predetermined contact pressure.

  The bobbin holder 50 is cantilevered at its right end by the turret 13 so that a plurality of bobbins B can be attached and detached sequentially from the left end. The bobbin holder 50 is rotationally driven by a bobbin holder motor 51 (see FIG. 3), and a plurality of bobbins B rotate together with the bobbin holder 50, whereby a plurality of yarns Y are wound up to form a plurality of packages P. .

  The bobbin holder 50 is provided at a position 180 degrees apart in the vertical direction in the circumferential direction of the turret 13. When the plurality of packages P are fully wound on the bobbin holder 50 being wound, the turret 13 is rotated 180 degrees by the turret motor 14 (see FIG. 3), so that the positions of the upper and lower bobbin holders 50 are switched. A change is made. The plurality of packages P mounted on the bobbin holder 50 are pushed out to the left by a pusher (not shown) and removed from the bobbin holder 50 when they are fully wound.

(Traverse device)
Details of the traverse device 30 will be described. The traverse device 30 presses the plate-like base 31, the driving pulley 32 and two driven pulleys 33 and 34 attached to the base 31, the endless belt 35 wound around the pulleys 32 to 34, and the endless belt 35. The presser roller 36 includes a plurality (four in this case) of traverse guides 37 attached to the endless belt 35, and a rail 38 attached to the base 31. The traverse device 30 is fixed to the support beam 20 by fixing the base 31 to the support surface 21 of the support beam 20. In the present embodiment, the support surface 21 is actually configured as an inclined surface close to the horizontal.

  Of the three pulleys 32 to 34, the driven pulleys 33 and 34 are spaced apart in parallel in the left-right direction, that is, the axial direction of the bobbin holder 50 (hereinafter simply referred to as “axial direction”), and the drive pulley 32 is driven The pulleys 33 and 34 are arranged at different positions from the line parallel to the axial direction connecting the pulleys 33 and 34. Further, with respect to the axial direction, the driven pulley 33 is disposed in the vicinity of the left end portion of the base 31, the driven pulley 34 is disposed in the vicinity of the right end portion of the base 31, and the drive pulley 32 is in the vicinity of the right end portion of the base 31, but is driven. The pulley 34 is disposed slightly to the left of the pulley 34.

  As a result, the endless belt 35 wound around the pulleys 32 to 34 becomes a substantially triangular shape having a long side portion (lower side portion) 35 a extending along the axial direction between the driven pulleys 33 and 34. Here, the drive pulley 32 is arranged close to one side as described above, not in the center of the driven pulleys 33 and 34 in the axial direction. For this reason, the corner | angular part in the drive pulley 32 becomes an acute angle among the substantially triangle formed with the endless belt 35, and the winding angle of the endless belt 35 with respect to the drive pulley 32 becomes 90 degree | times or more. In this embodiment, the diameter of the drive pulley 32 is larger than the diameter of the driven pulleys 33 and 34, but this is not essential.

  A pressing roller 36 that presses the endless belt 35 is provided between the drive pulley 32 and the driven pulley 33 toward the inside of a substantially triangular closed region formed by the endless belt 35. By providing the pressing roller 36, the winding angle of the endless belt 35 with respect to the drive pulley 32 is further increased. However, the presser roller 36 is not essential and can be omitted.

  The plurality of traverse guides 37 are attached to a long side portion 35 a extending in the axial direction among substantially triangular shapes formed by the endless belt 35 at substantially the same interval as the length of the bobbin B. The endless belt 35 is driven by the drive pulley 32, whereby the long side portion 35a of the endless belt 35 reciprocates in the axial direction. That is, the endless belt 35, more precisely, the long side portion 35a of the endless belt 35 corresponds to the “attached portion” in the present invention, and the drive pulley 32 corresponds to the “drive portion” in the present invention. The rail 38 is disposed in proximity to the long side portion 35a in a state substantially parallel to the long side portion 35a of the endless belt 35.

  Here, the drive pulley 32 is configured to be able to rotate in the forward and reverse directions, and the traverse control unit 11a (see FIG. 3) rotates and rotates while repeatedly switching the rotation direction of the drive pulley 32. Can be switched repeatedly. As a result, the long side portion 35a of the endless belt 35 reciprocates in the axial direction, and as a result, the plurality of traverse guides 37 attached to the long side portion 35a reciprocate in the axial direction. Thus, the plurality of yarns Y are traversed by the traverse guide 37 with the fulcrum guide 90 as a fulcrum.

  FIG. 2 is an enlarged view of the traverse guide 37. The traverse guide 37 has a fixed portion 37a fixed to the endless belt 35, and a holding portion 37b that is formed in front of the fixed portion 37a and captures and holds the yarn Y. The holding portion 37b is formed in a substantially isosceles triangle having a vertex in front as viewed from above, and a yarn accommodation groove 37c for accommodating the yarn Y is formed in the vertex portion. A pair of inclined portions 37d for guiding the yarn Y to the yarn accommodation groove 37c is formed symmetrically on the left and right sides of the yarn accommodation groove 37c.

  When the traverse guide 37 is moved in the traveling direction D, the inclined portion 37d collides with the yarn Y that travels substantially along the vertical direction. Then, the yarn Y is bent rightward or leftward by the inclined portion 37d, so that the force F is generated in the direction opposite to the traveling direction D of the traverse guide 37 by the tension of the yarn Y. By this force F, the yarn Y moves toward the yarn accommodating groove 37c along the inclined portion 37d, and is finally accommodated (captured) in the yarn accommodating groove 37c. The yarn Y accommodated in the yarn accommodation groove 37c is held by the traverse guide 37 in a state where movement in the traverse direction (left-right direction) is restricted. The traverse guide 37 is linearly guided in the left-right direction by the rail 38, and does not flutter in the front-rear direction or the up-down direction.

(Control device)
FIG. 3 is a control block diagram of the yarn winding device 1. The control device 11 includes a traverse control unit 11a that controls the operation of the drive pulley 32, a bobbin holder control unit 11b that controls the operation of the bobbin holder motor 51, a turret control unit 11c that controls the operation of the turret motor 14, and each control. A storage unit 11d that stores control programs executed by the units 11a to 11c and data necessary for control. The operator can select a control program to be executed by the control device 11 or input data necessary for control via the setting unit 12.

  The traverse control unit 11a can control the movement range and the movement speed when moving the plurality of traverse guides 37 in the axial direction by controlling the rotation operation of the drive pulley 32. The bobbin holder control unit 11 b can control the winding speed of the yarn Y by controlling the rotation operation of the bobbin holder motor 51. The turret control unit 11c can change the positions of the pair of upper and lower bobbin holders 50 as described above by controlling the turret motor 14 and rotating the turret 13 by 180 degrees. The storage unit 11d stores, for example, data that associates the type of the bobbin B with the winding area (movement range of the traverse guide 37), as will be described later.

(About vibration)
According to the yarn winding device 1, since the plurality of traverse guides 37 are commonly attached to the long side portion 35a of the endless belt 35, only one drive pulley 32 is provided for the endless belt 35. All the traverse guides 37 can be reciprocated in the axial direction. That is, compared with the case where a drive mechanism is provided for each traverse guide 37, the number of parts can be greatly reduced.

  However, according to such a configuration, each traverse guide 37 reciprocates in the winding region in the same phase. For this reason, as described above, the local swell of the package P caused by the ribbon winding is formed in the same phase in all the packages P, and the contact roller 40 is pushed up when the swell is overcome. May occur.

  Therefore, in order to reduce such vibration, in the yarn winding device 1, the control device 11 is configured so that the traverse angles of the plurality of yarns Y traversed by the traverse device 30 are equal to or less than a predetermined angle. The drive pulley 32 is controlled by the traverse control unit 11a. Specifically, the speed at which the traverse guide 37 is reciprocated, that is, the traverse speed is controlled so that the traverse angle is equal to or less than a predetermined angle. When the winding diameter of the package P being wound reaches a predetermined size, the turret motor 14 is driven by the turret control unit 11c (see FIG. 3) of the control device 11, and the turret 13 is rotated 180 degrees to The position of the bobbin holder 50 is switched. Then, when the winding of the yarn Y is started by the bobbin B attached to the new bobbin holder 50, the winding diameter of the package P wound around the bobbin B is controlled so as not to exceed a predetermined dimension. .

  FIG. 4 is a graph showing an example of the transition of the wind ratio, and is a diagram showing the twill angle and the package diameter when the wind ratio becomes an integer ratio. Note that when the twill angle is less than 1 degree, the graph is overcrowded and cannot be properly illustrated, so the case where the twill angle is 1 degree or more is illustrated.

  As is clear from FIG. 4, the larger the twill angle, the smaller the wind ratio of the integer ratio that passes during winding, so that a remarkable ribbon winding as described in FIG. 8 occurs. However, when the twill angle is small, especially when the twill angle is 1 degree or less, the wind ratio of the ribbon generated during winding is only a very large integer ratio, so that the wind ratio becomes an integer ratio. Even in this case, the yarn Y is sufficiently dispersed and wound up, and there is almost no local swell. That is, by setting the twill angle to 1 degree or less, the occurrence of significant ribbon winding can be suppressed.

  Further, as can be seen from FIG. 4, by restricting the winding diameter of the package P to φ150 mm or less by the control device 11, the occurrence of significant ribbon winding can be suppressed even when the twill angle is 2 degrees or less. Here, when the yarn Y is as thin as 50 dtex or less, for example, and when the outer diameter of the bobbin B is as small as φ85 mm or less, for example, even if the maximum winding diameter is limited to φ150 mm or less, it is wound around one package P. Since the length of the yarn Y becomes sufficiently long, there is no particular problem.

(About changing bobbins)
The yarn winding device 1 is configured such that the number and length of the bobbins B attached to the bobbin holder 50 can be changed. FIG. 5 is a schematic diagram when the type of the bobbin B is changed. FIG. 5A shows four bobbins B1 which are the same as the bobbin B shown in FIG. 1, and FIG. 5B shows a bobbin B2 having a length about twice as long as the bobbin B1. FIG. 2C shows a state in which six bobbins B3 having a length about 2/3 of the bobbin B1 are packed in the bobbin holder 50 and attached. In the following description, bobbins B1 to B3 are referred to as bobbins B unless otherwise distinguished. Further, the traverse guides 37A to 37H shown in FIG.

  As shown in FIG. 5a, when four bobbins B1 are provided, the yarn Y is traversed by the four traverse guides 37A to 37D corresponding to the bobbins B1. The traverse guides 37 </ b> A to 37 </ b> D are attached to the long side portion 35 a of the endless belt 35 in a state in which the traverse guides 37 </ b> A to 37 </ b> D are arranged in the axial direction at substantially the same interval as the length of the bobbin B <b> 1. Then, the traverse control unit 11a of the control device 11 controls the drive pulley 32 so that the traverse guides 37A to 37D reciprocate in the winding regions corresponding to the bobbin B1.

  As shown in FIG. 5b, when two bobbins B2 having an axial length approximately twice the bobbin B1 are provided, two traverse guides 37A, 37C (or two two) corresponding to each bobbin B2 are provided. The yarn Y is traversed by the traverse guides 37B, 37D). That is, out of the four traverse guides 37A to 37D, two traverse guides 37A and 37C (or two traverse guides 37B and 37D) arranged in the axial direction at substantially the same interval as the length of the bobbin B2 are selected. Will be used. Then, the traverse control unit 11a of the control device 11 controls the drive pulley 32 so that the traverse guides 37A and 37C (or the traverse guides 37B and 37D) reciprocate in the winding regions corresponding to the bobbin B2. When the traverse guide 37 is configured to be able to ride over the pulleys 33 and 34, the traverse guide 37 that is not selected may be left as it is, but the traverse guide 37 may get over the pulleys 33 and 34. In the case where the configuration is not possible, it is necessary to remove the traverse guide 37 that has not been selected.

  As shown in FIG. 5c, when six bobbins B3 having an axial length of about 2/3 times the bobbin B1 are provided, six traverse guides 37A, 37E, and 37F corresponding to each bobbin B3 are provided. , 37C, 37G, and 37H, the yarn Y is traversed. The traverse guides 37A, 37E, 37F, 37C, 37G, and 37H are attached to the long side portion 35a of the endless belt 35 in a state in which they are aligned in the axial direction at substantially the same interval as the length of the bobbin B3. Then, the traverse control unit 11a of the control device 11 controls the drive pulley 32 so that the traverse guides 37A, 37E, 37F, 37C, 37G, and 37H reciprocate in the winding regions corresponding to the bobbin B3.

  Here, in order to use the traverse guides 37A to 37D originally provided for the bobbin B1 as effectively as possible, the traverse guides 37A and 37C are left as they are and four traverse guides 37E to 37H are newly provided. ing. However, it is not essential to use the traverse guides 37A and 37C, and all the six traverse guides 37 may be newly provided. Alternatively, a plurality of endless belts 35 to which a predetermined number of traverse guides 37 are attached are prepared according to the type of bobbin B, and the endless belt 35 is replaced when changing the type of bobbin B. Also good. Note that the traverse guides 37B and 37D that are not used may be left as they are or may be removed from the endless belt 35.

  Here, it is preferable that the traverse guide 37 is detachable from the endless belt 35 by adopting, for example, the configuration described in FIGS. According to this configuration, the number and position of the traverse guides 37 can be easily adjusted, and the yarn winding device 1 that can easily cope with more types of bobbins B can be obtained. In addition, when the type of the bobbin B to be assumed is determined, if the traverse guide 37 is provided in the least common multiple, it is possible to handle a plurality of types of bobbins B even if the traverse guide 37 is not detachable. can do. For example, in the case where the assumed bobbins B are the three types of bobbins B1 to B3 in FIG. 5, if the traverse guides 37A to 37H are all attached to the endless belt 35 in advance, the traverse guide 37 is detachable. It is not necessary to configure.

  As described above, when a plurality of types of bobbins B are used, if the drive mechanism is provided for each traverse guide 37, the drive mechanism is replaced or added each time the type of the bobbin B is changed. It is very troublesome to change the type of bobbin B. However, according to the yarn winding device 1, even if the type of the bobbin B is changed, the plurality of traverse guides 37 are commonly attached to the endless belt 35, and the endless belt 35 is driven by the drive pulley 32. Therefore, it is not necessary to replace or add to the drive pulley 32 or the endless belt 35. That is, the type of the bobbin B can be easily changed while using the traverse device 30 as it is.

  When changing the type of the bobbin B, for example, the operator inputs the type of the bobbin to the control device 11 via the setting unit 12 (FIG. 1). Here, the storage unit 11d stores data that associates the type of the bobbin B with the winding area (movement range of the traverse guide 37). The traverse control unit 11a refers to this data and appropriately controls the range in which the traverse guide 37 is reciprocated in the axial direction, that is, the range in which the long side portion 35a of the endless belt 35 is reciprocated in the axial direction. .

(effect)
According to the yarn winding device 1 of the present embodiment, it is only necessary to provide one attached portion (endless belt 35) and one drive portion (drive pulley 32) for each of the plurality of traverse guides 37. Can be reduced. In addition, by setting the traverse angle of the plurality of yarns Y to 1 degree or less, the occurrence of ribbon winding can be suppressed, and hence vibration due to ribbon winding can be reduced. Thus, according to the yarn winding device 1, it is possible to reduce vibration while reducing the number of parts.

  Further, in the yarn winding device 1, the bobbin holder 50 is cantilevered at one end (right end) in the axial direction, and the bobbin B can be attached and detached from the other end (left end) in the axial direction of the bobbin holder 50. It has become. For this reason, while there exists an advantage that attachment / detachment of the bobbin B to the bobbin holder 50 becomes easy, there exists a subject that a vibration tends to become large because the bobbin holder 50 is cantilever-supported. However, according to the yarn winding device 1, the vibration can be reduced as described above. Therefore, even when the bobbin holder 50 is supported in a cantilever manner, the vibration does not become a problem.

  In the yarn winding device 1, the traverse device 30 includes a drive pulley 32 as a drive unit, and an endless belt 35 wound around a plurality of pulleys 32 to 34 including the drive pulley 32 as an attached portion. The endless belt 35 is wound around the drive pulley 32 with a winding angle of 90 degrees or more. For this reason, the contact area between the drive pulley 32 and the endless belt 35 can be widened, and the output from the drive pulley 32 can be efficiently transmitted to the endless belt 35. Therefore, the operations of the plurality of traverse guides 37 attached to the endless belt 35 can be accurately controlled.

  In the yarn winding device 1, a pressing member (pressing roller 36) that presses the endless belt 35 toward the inner side of the closed region formed by the endless belt 35 between the driving pulley 32 and the driven pulley 33. Since at least one is provided, the winding angle of the endless belt 35 with respect to the drive pulley 32 can be further increased. Furthermore, since moderate tension can be applied to the endless belt 35 by the presser member (presser pulley 36), even when elongation with time occurs in the endless belt 35, the tension is loosened and the teeth do not jump. Therefore, the output from the drive pulley 32 can be more efficiently transmitted to the endless belt 35, and the operations of the plurality of traverse guides 37 attached to the endless belt 35 can be controlled with higher accuracy.

  In the yarn winding device 1, the number and length of the bobbins B attached to the bobbin holder 50 can be changed. The control device 11 can change the attached portion (endless belt 35) according to the length of the bobbin B. ) Is reciprocally moved in the axial direction. According to this configuration, different types of packages P can be produced, and the versatility of the apparatus is improved. Further, the control device 11 adjusts the reciprocating range of the attached portion (endless belt 35), that is, the reciprocating range of the traverse guide 37 (winding range of the yarn Y). Even when the change is made, the traverse device 30 before the change can be used as it is.

(Modified example of traverse device)
A modification of the traverse device 30 will be described with reference to FIGS. FIG. 6 is a diagram illustrating a first modification of the traverse device, and FIG. 7 is a diagram illustrating a second modification of the traverse device. 6 and 7, the base 31 and the rail 38 are not shown.

  In the traverse device 60 of the first modification shown in FIG. 6, the endless belt 35 is wound around three pulleys 61 to 63 including a driving pulley 61 and driven pulleys 62 and 63. The arrangement of the driven pulleys 62 and 63 is basically the same as the driven pulleys 33 and 34 shown in FIG. However, the driving pulley 61 is different from the one shown in FIG.

  If no countermeasure is taken, the corner of the drive pulley 61 of the substantially triangular shape (illustrated by a broken line) formed by the endless belt 35 becomes an obtuse angle, and the winding angle of the endless belt 35 with respect to the drive pulley 61 becomes small. End up. If this winding angle is small, tooth skipping tends to occur, and there is a possibility that the output from the drive pulley 61 cannot be properly transmitted to the endless belt 35.

  Therefore, press rollers 64 and 65 for pressing the endless belt 35 are provided symmetrically on both sides of the drive pulley 61 toward the inside of the substantially triangular closed region formed by the endless belt 35. For this reason, the winding angle of the endless belt 35 with respect to the drive pulley 61 can be increased. By providing the pressing rollers 64 and 65 on both sides of the driving pulley 61, the winding angle of the endless belt 35 with respect to the driving pulley 61 can be adjusted with a high degree of freedom by the arrangement of the pressing rollers 64 and 65. 1, the plurality of traverse guides 37 are attached to a long side portion (lower side portion) 35b extending along the axial direction between the driven pulleys 62 and 63. Note that the two pressing rollers 64 and 65 are not necessarily provided, and only one of them may be provided.

  In the traverse device 70 of the second modified example shown in FIG. 7, a drive pulley 71 and a driven pulley 72 arranged in the axial direction are provided, and the endless belt 35 is wound around the two pulleys 71 and 72. Yes. The drive pulley 71 is disposed near the right end of the base 31 (see FIG. 1), and the driven pulley 72 is disposed near the left end of the base 31.

  The endless belt 35 wound around the drive pulley 71 and the driven pulley 72 arranged in this way has an oval shape extending in the axial direction. Among the oval shapes, the lower end portion of the drive pulley 71 and the driven pulley are included. A long side portion (lower side portion) 35c passing through the lower end portion of 72 is parallel to the axial direction. A plurality of traverse guides 37 are attached to the long side portion 35c. In this modification, the diameter of the driving pulley 71 is larger than the diameter of the driven pulley 72, but this is not essential.

  By winding the endless belt 35 around the two pulleys 71 and 72, the winding angle of the endless belt 35 with respect to the drive pulley 71 can be increased to about 180 degrees. Moreover, since the number of pulleys is only two, the number of parts can be reduced. In addition, by providing a pressing roller 73 that presses the endless belt 35 toward the inside of the oval closed region formed by the endless belt 35, the tension of the endless belt 35 is appropriately maintained and the endless belt with respect to the drive pulley 71 is maintained. The winding angle of the belt 35 can be further increased. However, the pressing roller 73 may be omitted.

[Other Embodiments]
The embodiment of the present invention has been described above. However, the form to which the present invention can be applied is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention, as exemplified below. It is possible to add.

  For example, in the above embodiment, the winding angle of the yarn Y at the time of winding is 1 degree or less, or the maximum winding diameter of the package P is limited to 150 mm or less, and the yarn Y at the time of winding is It has been explained that the vibration caused by ribbon winding can be reduced by setting the twill angle to 2 degrees or less. However, instead of limiting the maximum value of the traverse angle of the yarn Y at the time of winding, or in combination with the limit of the traverse angle, the type of the yarn Y to be wound can be reduced to the spandex yarn. It is possible to plan. This is because when the type of yarn Y to be wound is a spandex yarn, the package P becomes rich in elasticity, and even if ribbon winding occurs, the vibration caused by ribbon winding is absorbed by the package P. Because you can. The spandex yarn is a kind of elastic yarn rich in elasticity, and is an elastic yarn made of a long-chain synthetic polymer having a composition of a polyurethane segment of 85 wt% or more in the basic material of the fiber.

  Further, the traverse device 30 in the above embodiment performs traverse by attaching a plurality of traverse guides 37 to the endless belt 35 and driving the endless belt 35 by the drive pulley 32. However, the traverse device 30 is not limited to the one using the endless belt 35, and a plurality of traverse guides 37 are commonly attached to the wire or bar member, and the wire or bar member is reciprocated in the axial direction by a linear motor or the like. It may be the one.

  In addition, the yarn winding device 1 in the above embodiment is not limited to the one that winds the yarn Y spun from the spinning section, and can be applied to, for example, a winding device provided in a false twisting device. is there.

1: Yarn winding device 11: Control device 11a: Traverse control unit 30: Traverse device 32, 61, 71: Drive pulley (drive unit)
35: Endless belt (attached part)
36, 64, 65, 73: Pressing roller (pressing member)
37, 37A-37H: Traverse guide 50: Bobbin holder B, B1-B3: Bobbin Y: Yarn

Claims (6)

A yarn winding device for winding a plurality of yarns around a plurality of bobbins while traversing the yarns,
A bobbin holder that rotates with the plurality of bobbins attached thereto;
A traverse having a plurality of traverse guides for holding the plurality of yarns, a mounted portion to which the plurality of traverse guides are mounted in common, and a drive unit for reciprocating the mounted portion in the axial direction of the bobbin holder Equipment,
A control device for controlling the operation of the traverse device;
With
The control device suppresses the occurrence of ribbon winding by controlling the drive unit so that the traverse angle of the plurality of yarns traversed by the traverse device is 1 degree or less. Yarn winding device. A yarn winding device for winding a plurality of yarns around a plurality of bobbins while traversing the yarns,
A bobbin holder that rotates with the plurality of bobbins attached thereto;
A traverse having a plurality of traverse guides for holding the plurality of yarns, a mounted portion to which the plurality of traverse guides are mounted in common, and a drive unit for reciprocating the mounted portion in the axial direction of the bobbin holder Equipment,
A control device for controlling the operation of the traverse device;
With
The maximum winding diameter of the package wound around the bobbin is φ150 mm or less,
The control device suppresses the occurrence of ribbon winding by controlling the drive unit so that the traverse angle of the plurality of yarns traversed by the traverse device is 2 degrees or less. Yarn winding device.   The yarn winding device according to claim 1 or 2, wherein the bobbin holder is cantilevered at one end in the axial direction, and the bobbin can be attached and detached from the other end in the axial direction of the bobbin holder. The traverse device has a drive pulley as the drive unit, and has an endless belt wound around a plurality of pulleys including the drive pulley as the attached portion,
The yarn winding device according to any one of claims 1 to 3, wherein the endless belt is wound around the driving pulley with a winding angle of 90 degrees or more.   5. The yarn according to claim 4, wherein at least one pressing member that presses the endless belt toward an inner side of a closed region formed by the endless belt is provided between the driving pulley and the other pulley. Winding device. The number and length of the bobbins attached to the bobbin holder can be changed,
The yarn winding device according to any one of claims 1 to 5, wherein the control device adjusts a range in which the attached portion is reciprocated in the axial direction according to a length of the bobbin.

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