JP2022085641A - Yarn winding machine - Google Patents

Abstract

To suppress problem occurrence of package formation due to relative position variation between a traverse area and a bobbin in a predetermined direction where a bobbin holder extends.SOLUTION: A spun yarn take-up machine 1 winds a plurality of yarns Y around a plurality of bobbins B, respectively to form a plurality of packages P. The spun yarn take-up machine 1 comprises a bobbin holder 24 for arranging a plurality of bobbins B in a predetermined direction and holding the bobbins, that is arranged so as to extend in the predetermined direction; a plurality of traverse guides 32 for traversing each of the plurality of yarns Y along the predetermined direction; a traverse device 22 including at least one of the plurality of traverse guides 32 and constituted so as to drive at least one of the plurality of traverse guides 32; and a movement drive part 50 for moving the traverse device 22 in at least the predetermined direction.SELECTED DRAWING: Figure 6

Description

The present invention relates to a bobbin winder.

Patent Documents 1 and 2 disclose a thread winder that winds a plurality of threads on a plurality of bobbins to form a plurality of packages. More specifically, the spool has a bobbin holder and a plurality of traverse devices (hereinafter referred to as traverse devices). The bobbin holder extends along a predetermined direction and holds a plurality of bobbins side by side in a predetermined direction. Each of the plurality of traverse devices has a traverse guide for traversing the thread along a predetermined direction, and is provided corresponding to each of the plurality of bobbins. While the bobbin holder rotates a plurality of bobbins at the same time, the threads are swung in a predetermined direction by a plurality of traverse devices, whereby the threads are wound at the plurality of bobbins at the same time. Here, in recent years, the length of the bobbin holder has been increased so that more bobbins can be held at one time. Along with this, various problems have occurred, and countermeasures have been taken for those problems.

The first example of the problem and the countermeasure is shown below. The thread winder is configured to apply contact pressure to the outer peripheral surface of the package by a contact roller extending substantially parallel to the bobbin holder to adjust the shape of the package. Further, the bobbin holder is cantilevered and supported substantially horizontally. In such a configuration, the bobbin holder gradually bends downward due to the weight of the package as the package rolls thicker (the weight of the package increases) during winding of the yarn. The amount of bending of the bobbin holder is larger toward the tip side in a predetermined direction. If the parallelism between the bobbin holder and the contact roller fluctuates due to this, the contact pressure may vary among a plurality of bobbins, and the quality may vary among packages. Therefore, the thread winder described in Patent Document 1 is configured to maintain the contact roller and the bobbin holder substantially in parallel by a tilting mechanism (angle adjusting unit) that positively tilts the contact roller.

A second example of the problem and countermeasure is shown below. As shown in Patent Document 2, a slit in which a thread is hung is formed at a predetermined direction end of each bobbin. Further, Patent Document 2 discloses a thread hooking mechanism having a guide for hooking a thread in the slit. Here, if the number of bobbins held in the bobbin holder at one time increases, the position of the slit may change significantly due to an error in the length of the bobbin, and a threading error may occur. Therefore, the thread hooking mechanism is configured so that the position of the guide in a predetermined direction can be adjusted. As a result, the occurrence of thread hooking mistakes can be suppressed.

Japanese Unexamined Patent Publication No. 2012-158436 Japanese Unexamined Patent Publication No. 2019-214474

While countermeasures for the above problems associated with the lengthening of the bobbin holder have been taken, changes in the positional relationship between the bobbin and the thread movement range (traverse area) due to the drive of the traverse guide have not been regarded as a problem so far. , No particular measures were needed. However, it has been found by the inventor of the present application that if the bobbin holder is further lengthened, a problem caused by the traverse region being displaced in a predetermined direction with respect to the bobbin may become apparent. That is, when the positional relationship fluctuates due to the lengthening of the bobbin holder, the bobbin winding position on the bobbin in a predetermined direction fluctuates. Due to this, problems such as irregular shape of the package may occur.

An object of the present invention is to suppress the occurrence of a problem of package formation due to a change in the relative position between the traverse region and the bobbin in a predetermined direction in which the bobbin holder extends.

The thread winder of the first invention is a thread winder that winds a plurality of threads on a plurality of bobbins to form a plurality of packages, and is arranged so as to extend in a predetermined direction, and the plurality of bobbins are said to be the same. The bobbin holder that holds the plurality of threads side by side in a predetermined direction, a plurality of traverse guides for swinging the plurality of threads along the predetermined direction, and at least one of the plurality of traverse guides, the at least one traverse. It is characterized by comprising a traverse device configured to drive a guide, and a moving drive unit for moving the traverse device at least in the predetermined direction.

In the present invention, by moving the traverse device in at least a predetermined direction by the moving drive unit, the movement range (traverse area) of the yarn accompanying the driving of the traverse guide included in the traverse device can be moved in the predetermined direction. This makes it possible to suppress fluctuations in the relative position between the traverse region and the bobbin in a predetermined direction. Therefore, it is possible to suppress the occurrence of package formation problems due to fluctuations in the relative positions of the traverse region and the bobbin.

The spool of the second invention is characterized in that, in the first invention, the traverse region of the at least one traverse guide is fixed to the traverse device.

In a configuration in which the traverse region is fixed to the traverse device, it is particularly effective that the moving drive unit is provided as in the present invention.

In the second invention, the thread winder of the third invention is such that each of the plurality of traverse guides twills each of the plurality of threads by two blade guides that are rotationally driven in opposite directions. It is characterized in that it is configured in or attached to an arm that is oscillated.

As a specific example of the configuration in which the traverse area is fixed to the traverse device, each traverse guide has two blade guides (blade type) or is attached to an arm (arm type). In these configurations, it is particularly effective that the moving drive unit is provided as in the present invention.

The thread winder of the fourth invention is characterized in that, in any one of the first to third inventions, the traverse device includes all of the plurality of traverse guides.

In the present invention, the traverse area of all traverse guides can be moved by one moving drive unit. Therefore, the structure of the bobbin winder can be simplified as compared with the configuration requiring a plurality of moving drive units.

The thread winder of the fifth invention has, in any one of the first to fourth inventions, the moving drive unit having a linear actuator configured to be able to adjust the position of the traverse device in the predetermined direction. It is characterized by.

Since the amount of deviation between the traverse region and the bobbin in a predetermined direction is small, it is required to finely adjust the position of the traverse device. In the present invention, the position of the traverse device can be precisely adjusted as compared with a configuration in which the traverse device is simply moved by a propulsive force (for example, an air cylinder or the like).

In any one of the first to fifth inventions, the bobbin holder of the sixth invention is cantilevered and supported so that the bobbin holder extends at least horizontally, and is arranged so as to extend at least in the predetermined direction. It is characterized by comprising a contact roller for applying contact pressure to the plurality of packages, and an angle adjusting unit configured to be able to adjust the angle of the traverse device and the contact roller with respect to the horizontal direction.

In this configuration, by adjusting the angles of the traverse device and the contact roller with the angle adjusting unit, it is possible to suppress variations in contact pressure between packages due to the thickening of a plurality of packages. However, simply adjusting the angle may cause the traverse region to shift in a predetermined direction with respect to the bobbin, and the package shape may collapse. In this respect, in the present invention, since the traverse region can be suppressed from being displaced in a predetermined direction with respect to the bobbin by the moving drive unit, it is possible to effectively suppress the collapse of the package shape.

In the sixth aspect of the invention, the spool of the seventh invention includes the support member that supports the traverse device and the contact roller and is configured to be movable by the angle adjusting unit, and is driven by the movement. The unit is characterized in that it is configured to move and drive the support member in at least the predetermined direction.

In the present invention, the moving drive unit is configured to move the support member in the same manner as the angle adjusting unit. Therefore, the design can be simplified as compared with the case where the bobbin winder is configured to move the traverse device with respect to the support member.

In any one of the first to seventh inventions, the thread winder of the eighth invention includes a first control unit, and the first control unit winds the plurality of threads onto the plurality of bobbins. It is characterized in that the moving drive unit is controlled during the winding operation.

In the present invention, the position of the traverse region is adjusted during the winding operation. Therefore, the shape of the package can be effectively adjusted or the shape of the package can be freely changed to some extent.

The thread winder of the ninth invention includes, in any one of the first to eighth inventions, a position information acquisition unit for acquiring position information regarding the position of a predetermined portion of the plurality of bobbins in the predetermined direction. It is characterized by.

In the present invention, the amount of deviation of the traverse region in a predetermined direction due to the error of the bobbin length can be known based on the position information. Therefore, the position information can be used to compensate for the deviation of the traverse region with respect to the bobbin in a predetermined direction.

In the ninth aspect of the invention, the thread winder of the tenth invention includes a second control unit, and the second control unit winds the plurality of threads around the plurality of bobbins based on the position information. It is characterized in that the moving drive unit is controlled before the start of the winding operation.

The misalignment of the traverse region with respect to the bobbin due to the bobbin length error can be known in advance before the start of the winding operation. Therefore, according to the present invention, the above-mentioned misalignment can be effectively compensated.

The thread winder of the eleventh invention includes a third control unit in any one of the first to tenth inventions, wherein the third control unit includes a traverse region of the at least one traverse guide and the bobbin. It is characterized in that the moving drive unit is controlled so as to reduce the positional deviation in the predetermined direction.

The present invention is particularly effective when it is desired to make the shape of the package symmetrical in a predetermined direction.

In any one of the first to eleventh inventions, the thread winder of the twelfth invention has a slit in which the thread is hooked on one end of each bobbin held by the bobbin holder in the predetermined direction. A fourth control unit is provided, and the fourth control unit controls the movement drive unit during a winding operation of winding the plurality of threads on the plurality of bobbins, respectively, to control the traverse device. Is moved to at least one side in the predetermined direction.

Generally, the winding region on the outer peripheral surface of the bobbin where the yarn is wound is closer to the other side (the side where the slit is not formed) than one side (the side where the slit is formed) in a predetermined direction. .. In other words, the area (margin) on the outer peripheral surface of the bobbin where the yarn is not wound is narrow on the other side in the predetermined direction. That is, the margin is relatively wide on one side of the bobbin in the predetermined direction, and the margin is relatively narrow on the other side of the bobbin in the predetermined direction. Also, in general, as the package rolls thicker, a force is applied radially inward of the package due to the tension of the yarn wound around the package. As a result, the radial inner portion of the package tends to bulge in a predetermined direction. Therefore, there is a greater risk that the thread tends to protrude on the other side of the predetermined direction than on one side of the predetermined direction of the bobbin.

In the present invention, the traverse region is intentionally moved to one side in a predetermined direction during the winding operation. In this way, by allowing an increase in the amount of swelling of the end face of one side (the side with a wide bobbin margin) in the predetermined direction of the package, the other side (the side with a narrow bobbin margin) in the predetermined direction of the package is correspondingly increased. ) Can reduce the amount of bulge on the end face. Therefore, it is possible to suppress the narrowing of the margin on the other side of the bobbin in the predetermined direction, and it is possible to reduce the risk that the thread protrudes from the bobbin.

In the twelfth invention, the pincushion winder of the thirteenth invention has the fourth control unit in the predetermined direction after moving the traverse device to the one side in the predetermined direction during the winding operation. It is characterized by moving to the other side of the.

The traverse device may be moved to only one side in a predetermined direction during the winding operation, but in this case, the radial outer portion of the package may be significantly biased to one side in the predetermined direction. This may cause the shape of the package to collapse. In the present invention, it is possible to suppress the narrowing of the margin on the other side of the bobbin in the predetermined direction, and to prevent the radial outer portion of the package from being biased to one side in the predetermined direction.

It is a side view of the spinning take-back machine which concerns on this embodiment. It is a front view of a winding device. (A) and (b) are explanatory views showing the angle adjustment of a contact roller. (A) to (d) are reference views schematically showing the cause of the deviation between the traverse region and the bobbin in a predetermined direction. It is explanatory drawing which shows the error of the bobbin length. It is explanatory drawing which shows the moving drive part. (A) to (c) are explanatory views which show the control example of the movement drive part. (A) to (d) are reference views showing the shape of the package. (A) and (b) are explanatory views which show the spinning take-back machine which concerns on the modification.

Next, an embodiment of the present invention will be described. The left-right direction of the paper surface in FIG. 1 is the front-back direction. In addition, the direction in which gravity acts is the vertical direction (vertical direction), and the direction orthogonal to both the front-back direction and the vertical direction (paper vertical direction) is the left-right direction.

(Outline configuration of spinning take-up machine)
The spinning take-up machine 1 (thread take-up machine of the present invention) according to the present embodiment will be described with reference to FIG. FIG. 1 is a side view of the spinning take-up machine 1. The spinning take-up machine 1 includes a take-up unit 3 that takes up the yarn Y spun from the spinning device 2, and a take-up device 4 that winds the yarn Y taken up by the take-up unit 3 onto a plurality of bobbins B.

The taking-up section 3 has a first godet roller 11 and a second godet roller 12. The take-up unit 3 is configured to take up the yarn Y spun from the spinning device 2 by the first godet roller 11 and the second godet roller 12 and send it to the take-up device 4. The first godet roller 11 is a roller whose rotation axis direction is substantially parallel to the left-right direction. The first godet roller 11 is arranged below the spinning device 2 and above the front end of the winding device 4. The first godet roller 11 is rotationally driven by a motor (not shown). A thread regulation guide 13 is arranged immediately above the first godet roller 11. The thread regulation guide 13 is, for example, a known comb-shaped thread guide. The thread regulation guide 13 is configured to define the spacing between adjacent threads Y at a predetermined value.

The second godet roller 12 is a roller whose rotation axis direction is substantially parallel to the left-right direction. The second godet roller 12 is arranged above and behind the first godet roller 11. The second godet roller 12 is rotationally driven by a motor (not shown). The second godet roller 12 is movably supported by the guide rail 14. The guide rail 14 extends diagonally upward and backward. The second godet roller 12 is configured to be movable along the guide rail 14 by a moving mechanism (not shown). As a result, the second godet roller 12 is arranged at the position when the thread Y is wound around the bobbin B (see the solid line) and when the thread hooking operation is performed, which is arranged close to the first godet roller 11. It is possible to move to and from the position (see the alternate long and short dash line).

(Winling device)
The configuration of the winding device 4 will be described with reference to FIGS. 1 and 2. FIG. 2 is a front view of the take-up device 4. The winding device 4 includes a machine base 20, a plurality of fulcrum guides 21, a traverse device 22, a turret 23, two bobbin holders 24, a contact roller 25, a support member 26, an angle adjusting unit 27, and the like. It has a control unit 28. The take-up device 4 winds the plurality of threads Y sent from the take-up unit 3 on the plurality of bobbins B held by the bobbin holder 24 while swinging the plurality of threads Y in the front-rear direction by the traverse device 22. It is configured to form a plurality of packages P. Hereinafter, the operation of winding the thread Y on the bobbin B is referred to as a winding operation.

As shown in FIG. 1, the machine base 20 includes a machine base body 20a erected at the rear of the winding device 4 and a frame body 20b fixed to the upper part of the machine base body 20a and extended forward. Have. A turret 23 or the like is supported on the machine base main body 20a. The frame body 20b is, for example, a hollow columnar member. A contact roller 25 extending in the front-rear direction is supported on the frame body 20b via a support member 26 and an angle adjusting portion 27 (details will be described later).

The plurality of fulcrum guides 21 are thread guides that serve as fulcrums when the plurality of threads Y are twilled. The plurality of fulcrum guides 21 are provided corresponding to the plurality of threads Y, respectively. The plurality of fulcrum guides 21 are arranged along the front-rear direction.

The traverse device 22 is configured to twill a plurality of threads Y along the front-rear direction. The traverse device 22 has a housing 31, a plurality of traverse guides 32 arranged corresponding to the plurality of threads Y, and a traverse motor 33 (see FIG. 2). The traverse device 22 is, for example, a blade-type traverse device described in Japanese Patent Application Laid-Open No. 2019-214474 (the blade guide described in the above-mentioned publication corresponds to the traverse guide 32 of the present embodiment). Each of the plurality of traverse guides 32 has, for example, two blade guides 34 (see FIG. 1, in which only one blade guide 34 is shown corresponding to each traverse guide 32). The two blade guides 34 are configured to be rotationally driven in opposite directions when viewed from a predetermined rotation axis direction. Each traverse guide 32 is configured to twill each thread Y by two blade guides 34 that are rotationally driven by a traverse motor 33. In such a configuration, the movement range (traverse region) of the thread Y accompanying the driving of the plurality of traverse guides 32 in the front-rear direction is fixed to the housing 31. In other words, the central position of the traverse region of each traverse guide 32 does not move with respect to the traverse device 22. Further, the length of the traverse region in the axial direction is constant. In this embodiment, all traverse guides 32 are included in the traverse device 22. The traverse motor 33 is a common drive source for the plurality of traverse guides 32. The plurality of traverse guides 32 are simultaneously driven by the traverse motor 33 at least in the front-rear direction. As a result, the thread Y hung on each traverse guide 32 is swung all at once with each fulcrum guide 21 as a fulcrum.

The turret 23 is a disk-shaped member whose axial direction is substantially parallel to the front-rear direction. The turret 23 is rotatably supported by the machine base body 20a. The turret 23 is rotationally driven by a turret motor (not shown). The turret 23 cantilever supports two bobbin holders 24. The turret 23 moves the two bobbin holders 24 by rotating around a rotation axis substantially parallel to the front-rear direction. The turret 23 is configured so that the positions of the two bobbin holders 24 can be exchanged. This makes it possible to replace the bobbin B with respect to the other bobbin holder 24 while the thread is being wound around the bobbin B mounted on one bobbin holder 24. Further, the turret 23 is configured to be rotatable as the amount of the wound yarn Y increases during the winding operation (see the arrow in FIG. 2).

The two bobbin holders 24 are configured so that a plurality of bobbins B can be mounted on each of the two bobbin holders 24. The two bobbin holders 24 are rotatably supported by the turret 23 supported by the machine base body 20a. The two bobbin holders 24 are cantilevered by the turret 23. The two bobbin holders 24 are arranged so as to be point-symmetrical with each other with the center point of the turret 23 in between when viewed from the front-rear direction. That is, for example, when one bobbin holder 24 is located on the uppermost side, the other bobbin holder 24 is located on the lowermost side. The two bobbin holders 24 extend forward from the turret 23. The axial direction in which the two bobbin holders 24 extend (hereinafter referred to as a predetermined direction) is substantially parallel to the front-rear direction. The predetermined direction slightly fluctuates during the winding operation, as will be described later. A plurality of bobbins B individually provided for the plurality of threads Y are mounted on each bobbin holder 24 side by side in the axial direction. In the present embodiment, the number of bobbins B that can be attached to one bobbin holder 24 is 16, but the number is not limited to this (see FIG. 1). Each of the two bobbin holders 24 is rotationally driven by a separate take-up motor (not shown). The two bobbin holders 24 are located below the traverse device 22.

While the thread Y is wound around the bobbin B mounted on the one bobbin holder 24 to form the package P, the weight of the package P increases as the amount of the thread Y increases (the package P becomes thicker). .. Further, as described above, the bobbin holder 24 is cantilevered and supported. Therefore, the posture of the bobbin holder 24 is maintained substantially horizontal immediately after the start of the winding operation (see FIG. 3A), but as the package P rolls up, the bobbin holder 24 flexes downward due to the weight of the package P. (See Fig. 3 (b)). The amount of bending of the bobbin holder 24 at this time is larger toward the tip side in the axial direction of the bobbin holder 24.

The contact roller 25 is arranged immediately above the upper bobbin holder 24. The axial direction of the contact roller is substantially parallel to the front-rear direction. The contact roller 25 is configured to apply contact pressure to the surfaces of a plurality of packages P supported by the upper bobbin holder 24 to adjust the shape of the packages P.

The support member 26 is configured to support the contact roller 25 and the traverse device 22. As shown in FIGS. 1 and 2, the support member 26 is swingably attached to, for example, the frame body 20b. The support member 26 has, for example, a swing shaft 41, a pair of arm portions 42, and a roller support shaft 43. The swing shaft 41 extends substantially in the front-rear direction. Arm portions 42 are fixed to both ends of the swing shaft 41 in the front-rear direction. The swing shaft 41 is configured to swing the pair of arm portions 42 and the roller support shaft 43 with the extending direction of the swing shaft 41 as the swing axis direction. The swing shaft 41 is rotatably supported by a mounting member 44 attached to the front end portion of the frame body 20b and a slider 46 described later arranged near the rear end portion of the frame body 20b. The mounting member 44 rotatably supports the swing shaft 41. Further, the mounting member 44 supports the swinging shaft 41 so as to be swingable in the vertical direction with the mounting member 44 as the center of the swinging shaft, for example, by a shaft member (not shown). As a result, the angle of the swing shaft 41 with respect to the horizontal direction can be adjusted by the angle adjusting unit 27 (details will be described later). The pair of arm portions 42 are fixed to both ends of the swing shaft 41 in the front-rear direction. The pair of arm portions 42 extend from the swing shaft 41 in a direction substantially perpendicular to the front-rear direction. A housing 31 of the traverse device 22 is fixed in the middle of the pair of arm portions 42. A roller support shaft 43 is fixed to the end of the pair of arm portions 42 on the side opposite to the swing shaft 41. The roller support shaft 43 is a shaft arranged substantially parallel to the swing shaft 41. The roller support shaft 43 rotatably supports the contact roller 25.

The angle adjusting unit 27 is configured to change the angle of the support member 26 with respect to the horizontal direction. The angle adjusting unit 27 has, for example, a ball screw mechanism 45. The ball screw mechanism 45 includes a slider 46 and is configured to be able to move the slider 46 in the vertical direction. The slider 46 rotatably supports the rear end portion of the swing shaft 41. By moving the rear end portion of the swing shaft 41 along the vertical direction by such a ball screw mechanism 45, the angle of the swing shaft 41 with respect to the horizontal direction can be changed. As a result, the angle of the support member 26 with respect to the horizontal direction changes, and as a result, the angle of the contact roller 25 and the traverse device 22 with respect to the horizontal direction changes. As a result, the angles of the contact roller 25 and the traverse device 22 can be made to follow the bending of the bobbin holder 24 due to the winding thickness of the package P.

The control unit 28 includes a CPU, a ROM, a RAM, and the like. The control unit 28 controls each unit by the CPU according to the program stored in the ROM. Specifically, the control unit 28 controls a turret motor (not shown), a traverse motor 33, a ball screw mechanism 45, and the like. The control unit 28 functions as a first control unit, a second control unit, a third control unit, and a fourth control unit of the present invention.

In the winding device 4 having the above configuration, when the upper bobbin holder 24 is rotationally driven, the thread Y twilled by the traverse guide 32 is wound around the bobbin B to form the package P. While the package P is formed, the contact roller 25 contacts the surface of the package P to apply a contact pressure, so that the shape of the package P is adjusted. The turret 23 is rotated in the direction of the arrow in FIG. 2 as the diameter of the package P becomes larger (the package P becomes thicker) due to the thread Y being wound around the bobbin B. As a result, the distance between the bobbin holder 24 to which the bobbin B around which the thread Y is wound is mounted and the contact roller 25 increases. Since the contact roller 25 can swing around the swing shaft 41, it swings following the movements of the bobbin holder 24 and the package P. As a result, the contact between the contact roller 25 and the package P is maintained.

Further, as described above, the posture of the bobbin holder 24 is maintained substantially horizontally immediately after the start of the winding operation (see FIG. 3A). Further, as the package P rolls up and thickens, the bobbin holder 24 bends downward due to the weight of the package P (see FIG. 3 (b)). In other words, with the passage of time from the start of the winding operation, the axial direction (predetermined direction) of the bobbin holder 24 changes with respect to the horizontal direction. In such a situation, when the angle formed by the bobbin holder 24 and the contact roller 25 changes, the contact pressure by the contact roller 25 varies among the plurality of packages P, and as a result, the quality varies among the plurality of packages P. In order to solve such a problem, the control unit 28 controls the angle adjusting unit 27 during the winding operation to change the angle of the support member 26 with respect to the horizontal direction. As a result, the bobbin holder 24 and the contact roller 25 are kept substantially parallel to each other. Further, as described above, the traverse device 22 is supported by the support member 26 together with the contact roller 25. Therefore, even if the bobbin holder 24 is tilted from the horizontal direction, the moving direction of the thread Y accompanying the driving of the traverse guide 32 can be substantially matched with the predetermined direction. Therefore, for example, the problem that the winding angle (twill angle) when the thread Y is wound around the bobbin B deviates from the target value can be suppressed.

However, even in the above configuration, it has been found by the inventor of the present application that a new problem is becoming apparent as the length of the bobbin holder 24 becomes longer. Hereinafter, a specific description will be given with reference to FIGS. 4 (a) to 4 (d) and FIG. FIG. 4A is an explanatory diagram showing the positional relationship between the bobbin B before the start of the winding operation and the moving region (traverse region R) of the thread Y accompanying the driving of the traverse guide 32. FIG. 4B is an explanatory diagram showing the positional relationship between the bobbin B and the traverse region R after a predetermined time has elapsed from the start of the winding operation. FIG. 4 (c) is a diagram showing the above-mentioned positional relationship in FIG. 4 (a) more schematically. FIG. 4D is a diagram showing the positional relationship in FIG. 4B more schematically. FIG. 5 is an explanatory diagram regarding an error in the length of the bobbin B mounted on the bobbin holder 24. In FIGS. 4A to 4D, the side facing the front side is defined as one side in a predetermined direction. Further, the side facing the rear side is the other side in a predetermined direction.

First, the problem caused by the bending of the bobbin holder 24 as described above will be described. Before the start of the winding operation, the bobbin B and the traverse region R have a predetermined positional relationship in the front-rear direction (see FIG. 4A). As a result, immediately after the start of the winding operation, the yarn Y is wound around the predetermined region on the outer peripheral surface of the bobbin B in the predetermined direction. However, when the package P is rolled up and the bobbin holder 24 is bent (when the predetermined direction is tilted with respect to the front-rear direction), even if the angles of the contact roller 25 and the traverse device 22 are adjusted, the traverse area R is predetermined. In the direction, it gradually shifts to the other side with respect to the bobbin B. As a result, the inventor of the present application has found that the shape of the package P is unintentionally distorted toward the other side in a predetermined direction (see FIG. 4 (b)).

Such a phenomenon will be described more schematically with reference to FIGS. 4 (c) and 4 (d). The following is a simple example. It is assumed that the above-mentioned swing shaft 41 is arranged along the line segment L1. A predetermined point on the front end of the swing shaft 41 is defined as a point P1a. A predetermined point at the rear end of the swing shaft 41 is assumed to be the rear end of the line segment L1, and the point at the rear end of the line segment L1 is defined as the point P1b. Further, it is assumed that the bobbin holder 24 is arranged along the line segment L2 arranged below the line segment L1. A predetermined point on the front end portion (tip portion) of the bobbin holder 24 is defined as a point P2a. A predetermined point at the rear end portion (base end portion) of the bobbin holder 24 is defined as a point P2b. For the sake of simplicity, it is assumed that the length of the line segment L1 and the length of the line segment L2 are the same. Before the start of winding (see FIG. 4C), the positions of the line segment L1 and the line segment L2 are the same in the front-rear direction. Further, the predetermined direction is parallel to the front-rear direction. In this case, the positions of the points P1a and P2a coincide with each other in a predetermined direction (see the two-dot chain line in FIG. 4 (c)). Next, when the package P is rolled up and the bobbin holder 24 is bent, it can be considered that the line segment L2 is rotated downward by a predetermined angle about the point P2b. At this time, the predetermined direction is tilted by a predetermined angle with respect to the front-back direction. In such a state, when focusing on a predetermined direction, the point P2a shifts to one side with respect to the point P1a (see the two-dot chain line in FIG. 4D). In such a case, even if the angle of the line segment L1 is changed according to the change in the angle of the line segment L2, the position of the line segment L1 in the predetermined direction can be matched with the position of the line segment L2 in the predetermined direction. Can not. Even if the line segment L1 is rotated around the point P1a or the line segment L1 is rotated around the point P1b, such a misalignment cannot be eliminated.

Further, although detailed illustration is omitted, a more serious problem may occur depending on the orientation of the bobbin B mounted on the bobbin holder 24. Generally, in the axial direction of the bobbin B, a slit S on which the thread Y is hung is formed at one end of the bobbin B (see the broken lines in FIGS. 4A and 4B). Further, in general, the traverse region R is set so as to be closer to the side where the slit S is not formed in the axial direction of the bobbin B. That is, on the side of the bobbin B where the slit S is not formed, the margin portion where the thread is not wound is narrow. Further, in general, as the package P is rolled and thickened, a force is applied radially inward to the package P due to the tension of the thread Y wound around the package P. As a result, the radial inner portion of the package P tends to bulge in a predetermined direction. Therefore, when the bobbin B is attached to the bobbin holder 24 so that the slit S is arranged on one side in the predetermined direction, there is a risk that the thread Y tends to protrude from the bobbin B on the other side in the predetermined direction of the bobbin B. Becomes larger.

Next, a problem caused by an error in the axial length of the bobbin B mounted on the bobbin holder 24 will be described. Generally, in each bobbin B, the error in the axial length of the bobbin B is small. However, as the bobbin holder 24 becomes longer and the number of bobbins B mounted on the bobbin holder 24 at one time increases, the error increases accordingly. For example, a relatively short bobbin B (bobbin B1) is attached to the bobbin holder 24 as shown on the upper side of the paper in FIG. 5, and a relatively long bobbin B (bobbin B2) is shown on the lower side of the paper in FIG. ) Is attached to the bobbin holder 24. In this case, the difference dLt between the total length (total length) of the plurality of bobbins B1 and the total length of the plurality of bobbins B2 increases as the number of bobbins B mounted on the bobbin holder 24 at one time increases. In such a case, the positional relationship between the bobbin B and the traverse region R (see FIGS. 4A and 4B) cannot be properly maintained in a predetermined direction, and there is a possibility that a problem may occur in the formation of the package P.

In order to suppress the occurrence of the problem of the formation of the package P due to the fluctuation of the relative position between the traverse region R and the bobbin B in the predetermined direction as described above, the winding device 4 of the spinning take-up machine 1 of the present embodiment is used. It has the following moving drive unit 50.

(Moving drive unit)
The configuration of the mobile drive unit 50 will be described with reference to FIG. In FIG. 6, the members housed in the machine base main body 20a are also shown so as to be visible. The movement drive unit 50 is for moving the entire traverse device 22 in at least a predetermined direction. Hereinafter, an example of the moving drive unit 50 will be described. The mobile drive unit 50 has, for example, a ball screw mechanism 51 (linear actuator of the present invention). The ball screw mechanism 51 is configured so that the position of the traverse device 22 in a predetermined direction can be adjusted. The ball screw mechanism 51 is connected to the rear end portion of the swing shaft 41 of the support member 26. The ball screw mechanism 51 includes a moving motor 52, a screw shaft 53, and a slider 54.

The moving motor 52 is configured to rotationally drive the screw shaft 53. The moving motor 52 is, for example, a known servo motor or stepping motor. A screw shaft 53 is fixed to the rotating shaft of the moving motor 52. The moving motor 52 is connected to the slider 46 of the angle adjusting unit 27 described above by, for example, a connecting member 55. As a result, the position of the moving motor 52 is fixed with respect to the slider 46. Therefore, the moving motor 52 can move following the vertical movement of the slider 46 (that is, following the angle change of the swing shaft 41). The moving motor 52 is electrically connected to the control unit 28 and is driven and controlled by the control unit.

The screw shaft 53 is for moving the slider 54 in at least a predetermined direction by rotating. The extending direction of the screw shaft 53 is substantially parallel to the extending direction of the swing shaft 41 of the support member 26 described above. A male screw is formed on the screw shaft 53. The screw shaft 53 is screwed with the slider 54. The slider 54 is for moving the support member 26 in at least a predetermined direction by moving the screw shaft 53 in the extending direction. A female screw is formed on the slider 54. The slider 54 is screwed with the screw shaft 53. The slider 54 is attached to the rear end of the swing shaft 41 of the support member 26. As a result, the slider 54 can move following the change in the angle of the swing shaft 41. As described above, the ball screw mechanism 51 follows the angle change of the swing shaft 41 (that is, the angle change of the support member 26) as a whole. Therefore, it is possible to avoid applying an unreasonable force to the ball screw mechanism 51.

Further, the winding device 4 is also configured as follows in order to make the support member 26 movable at least in a predetermined direction. First, the slider 46 of the angle adjusting unit 27 slidably supports the rear end portion of the swing shaft 41 in a predetermined direction. As a specific example, the slider 46 is formed with a through hole 46a penetrating in the axial direction of the swing shaft 41, and the swing shaft 41 is inserted through the through hole 46a. Similarly, the above-mentioned mounting member 44 (see FIG. 1 and the like) slidably supports the front end portion of the swing shaft 41 in a predetermined direction.

In the moving drive unit 50 having the above configuration, when the screw shaft 53 is rotationally driven by the moving motor 52, the slider 54 moves in the extending direction of the screw shaft 53 (see the arrow in FIG. 6). As a result, the entire support member 26 including the swing shaft 41 moves integrally with the slider 54 in the extending direction of the swing shaft 41. As a result, the entire traverse device 22 attached to the support member 26 moves at least in a predetermined direction. When the extending direction of the screw shaft 53 and the extending direction of the swing shaft 41 are substantially parallel to the axial direction (predetermined direction) of the bobbin holder 24, the traverse device 22 moves along the predetermined direction. In this embodiment, the contact roller 25 also moves at least in a predetermined direction as the support member 26 moves.

(Position control of traverse area)
Next, regarding the control of the moving drive unit 50 by the control unit 28 (that is, the position control of the traverse region R described above), with reference to FIGS. 7 (a) to 7 (c) and FIGS. 8 (a) to 8 (d). explain. 7 (a) to 7 (c) are explanatory views showing a control example (more specifically, movement of the traverse region R) of the movement drive unit 50 by the control unit 28. FIG. 8A is a side view of the package P. FIG. 8 (b) is a cross-sectional view of the package P shown in FIG. 8 (a). FIG. 8 (c) is a cross-sectional view of the package P according to the second control example (1) described later. FIG. 8D is a cross-sectional view of the package P according to the second control example (2) described later.

First, the control performed before the start of winding the thread Y to the plurality of bobbins B (before the start of the winding operation) will be described. Before the start of the winding operation, the control unit 28 controls the movement drive unit 50 based on the information on the total length of the plurality of bobbins B, and adjusts the position of the traverse region R at least in a predetermined direction (FIG. 7A). reference). An example of the adjustment method is as follows. The control unit 28 acquires information on the total length of the plurality of bobbins B by some means or method before the start of the winding operation. The information may be input to the control unit 28 by an operator, for example. Alternatively, for example, information regarding the total length of the plurality of bobbins B may be sent to the control unit 28 from a host computer electrically connected to the control unit 28. Based on such information on the total length, the control unit 28 can acquire position information in a predetermined direction of a predetermined portion of the plurality of bobbins B (for example, the front end surface of the bobbin B arranged on the frontmost side). In this case, the control unit 28 corresponds to the position information acquisition unit of the present invention. Alternatively, the winding device 4 may have a sensor (not shown) that detects the position of a predetermined portion of the plurality of bobbins B in a predetermined direction. The sensor may transmit information on the position to the control unit 28. In this case, the sensor corresponds to the position information acquisition unit of the present invention.

After acquiring the information on the total length of the plurality of bobbins B, the control unit 28 derives the adjustment amount of the traverse region R based on the information. The adjustment amount may be, for example, a value obtained by dividing the difference between the total length and the reference length by 2. Based on the information of the adjustment amount, the control unit 28 controls the movement drive unit 50 to move the traverse device 22 before the start of the winding operation, and adjusts the position of the traverse region R at least in a predetermined direction. As a result, the position of the traverse region R in a predetermined direction can be optimized with respect to the bobbin B mounted at the center of the bobbin holder 24 in the front-rear direction. The control unit 28 stores the position of the traverse area R optimized in this way as the position (reference position) of the traverse area R at the start of the winding operation. In this case, the traverse region R may be slightly displaced in a predetermined direction with respect to the bobbin B arranged on the frontmost side and the bobbin B arranged on the rearmost side. However, as compared with the case where no adjustment is performed, for example, the positional deviation between the bobbin B arranged on the foremost side and the traverse region R in a predetermined direction can be halved. As described above, as a whole, it is possible to suppress an extreme positional deviation between the traverse region R and the bobbin B before the start of the winding operation. In this way, before the start of the winding operation, the moving drive unit 50 is controlled so as to reduce the positional deviation between the traverse region R and the bobbin B in a predetermined direction. The specific timing of the position adjustment of the traverse region R before the start of the winding operation as described above may be, for example, immediately before the thread Y is hooked on the slit S of each bobbin B. Alternatively, the position adjustment may be performed, for example, between the completion of threading on the slit S and the start of the winding operation.

Next, the position control of the traverse region R in a predetermined direction during the winding operation will be described. The control unit 28 moves the traverse area R during the winding operation with respect to the position of the traverse area R at the start of the winding operation (reference position described above). The position control is performed during the winding operation, for example, at the same time as controlling the angle adjustment of the contact roller 25. Hereinafter, two types of control examples will be described. Roughly speaking, the first control example (see FIG. 7B) is a control example in which the positional relationship between the traverse region R and the bobbin B in a predetermined direction is maintained substantially the same. The second control example (see FIG. 7C) is a control example in which the traverse region R is gradually moved toward the slit S side in a predetermined direction during the winding operation.

The control procedure is common to the first control example and the second control example. First, the control unit 28 takes into consideration the bending of the bobbin holder 24 due to the winding thickness of the package P and the angle adjustment of the support member 26 with respect to the bending, and the control unit 28 takes into consideration the target position (or the support member) in the predetermined direction of the traverse region R. Acquire target information regarding (movement amount of 26). The information may be stored in advance in the RAM of the control unit 28, for example, as a table in which the time and the position (or the amount of movement) are associated with each other. Alternatively, the information is predetermined by using the detection result by the sensor (not shown) that detects the information about the bending amount of the bobbin holder 24 and the detection result by the sensor (not shown) that detects the information about the angle of the support member 26. It may be derived based on the calculation formula of. Based on such target information, the control unit 28 appropriately controls the movement drive unit 50 to control the position of the traverse region R in a predetermined direction during the winding operation.

The specific contents of the target information described above differ from each other between the first control example and the second control example. In the first control example, the target information is such that the positional relationship between the traverse region R of a certain traverse guide 32 and the bobbin B corresponding to the traverse guide 32 in a predetermined direction does not change with time (that is, in a predetermined direction). (Relative position does not change with time). That is, the moving drive unit 50 is controlled so as to reduce the positional deviation between the traverse region R and the bobbin B in a predetermined direction during the winding operation as well as before the start of the winding operation. As a result, deformation of the package P in a predetermined direction is suppressed (see FIG. 7B). More specifically, for example, as shown in FIG. 8A, the shape of the end face E1 on one side in the predetermined direction and the shape of the end face E2 on the other side in the predetermined direction of the package P can be made symmetrical in a predetermined direction. can.

On the other hand, in the second control example, the target information is determined so that the traverse region R gradually shifts to at least one side (the side where the slit S is formed) in a predetermined direction with respect to the bobbin B (FIG. 7). See the solid arrow in (c)). As a result, the outer peripheral surface of the package P is intentionally slightly shifted to one side in a predetermined direction (see FIG. 7 (c)).

Before explaining the second control example in more detail, the purpose of implementing the second control example will be described. As described above, in general, as the package P rolls up and thickens, the radial inner portion of the package P tends to bulge in a predetermined direction. That is, the compressive force generated by the yarn tension in the radial outer portion of the package P acts on the radial intermediate portion (middle layer portion) of the yarn layer, and bulge is generated. As a result, the end faces E1 and E2 swell in a predetermined direction (see FIG. 8A and the like). For example, when the positional relationship between the bobbin B and the traverse region R is kept constant in a predetermined direction from the start to the end of the winding operation (see the two-dot chain line in the package P in FIG. 8B). The end faces E1 and E2 swell to the same extent in a predetermined direction (see FIGS. 8A and 8B). In this case, the length of the traverse region R in the predetermined direction is Lr, the size of the bulge in the predetermined direction (the amount of swelling of the end faces E1 and E2) is dLr, and the length of the yarn layer of the package P in the predetermined direction is set. When Lr2 is set, it becomes "Lr2 = Lr + 2 × dLr". As shown in the cross-sectional view of FIG. 8 (b) (cross-sectional view of the package P shown in FIG. 8 (a)), the radial intermediate portion (middle layer portion) of the yarn layer tends to swell most in a predetermined direction. .. Since such a bulge is generated, when the bobbin B is attached to the bobbin holder 24 so that the slit S is arranged on one side in a predetermined direction, the thread Y protrudes from the bobbin B on the other side in the predetermined direction of the bobbin B. There is a great risk that it is easy to get rid of. Alternatively, even if a serious problem that the thread Y protrudes from the bobbin B does not occur, the following problems may occur if the margin portion of the other end of the bobbin B in the predetermined direction is narrow. Generally, the completed plurality of packages P are transported in a state of being placed on a tray (not shown) on which the plurality of packages P can be placed. Here, on the mounting surface (not shown) of the tray, a plurality of holes (not shown) into which the ends of the plurality of bobbins B on the other side in a predetermined direction can be inserted are formed. In other words, the plurality of packages P placed on the tray are transported in a state in which the axial direction of each bobbin B is substantially parallel to the vertical direction and the end face of the package P is substantially parallel to the horizontal direction. When each bobbin B is firmly inserted into each hole, the plurality of packages P are stably transported. However, if the margin portion is narrow, the bobbin B is not firmly inserted into the hole, and the package P tends to fall down. Further, if the bobbin B is not firmly inserted into the hole in this way, the package P may be displaced horizontally on the mounting surface during transportation and may come into contact with the adjacent packages P, resulting in damage to the package P. There is.

In this respect, by implementing the second control example during the winding operation, it is possible to reduce the swelling of the end face E2 on the other side in the predetermined direction of the package P. In the second control example, the control unit 28 moves (1) the traverse device 22 to only one side in a predetermined direction, or (2) moves the traverse device 22 to one side in a predetermined direction during the winding operation. After that, it is moved to the other side in a predetermined direction.

First, the control of (1) above will be described. The control unit 28 controls the moving drive unit 50 to gradually move the traverse device 22 to one side in a predetermined direction immediately after the start of the winding operation or after a predetermined time has elapsed from the start of the winding operation. (See the solid arrow in FIG. 7 (c)). The amount of movement of the traverse device 22 at this time is, for example, larger than the amount of movement of the traverse device 22 in the first control example. More specifically, the traverse area R immediately before the end of the winding operation is shifted by a predetermined amount to one side in a predetermined direction with respect to the traverse area R at the start of the winding operation. The predetermined amount may be, for example, the above-mentioned dLr (see the two-dot chain line in the package P of FIG. 8C), or may be another value. By such control, the position of the intermediate layer in a predetermined direction can be shifted to one side. As a result, the amount of swelling of the end face E1 becomes large, and the amount of swelling of the end face E2 is suppressed (see FIG. 8C). Therefore, since the bobbin B can be firmly inserted into the hole of the tray, the package P can be stably transported.

Next, the control of (2) above will be described. In the control of (1) above, the radial outer portion of the package P may be greatly biased to one side in a predetermined direction, and there is a concern that the shape of the package P may be deformed. Further, if the traverse region R moves too much to one side in the predetermined direction, the thread layer of the package P may protrude from the end face of the bobbin B to one side in the predetermined direction. Therefore, the control of the above (2) may be performed instead of the control of the above (1). As an example, the control unit 28 first controls the mobile drive unit 50 immediately after the start of the winding operation or after a predetermined time has elapsed from the start of the winding operation, and controls the traverse device 22 on one side in a predetermined direction. Gradually move to (see the solid arrow in FIG. 7 (c)). After that, the control unit 28 gradually moves the traverse device 22 to the other side in a predetermined direction (see the broken line arrow in FIG. 7 (c)). For example, the control unit 28 moves the control unit 28 so that the traverse region R when the weight of the package P is approximately half of the target weight is dLr shifted to one side in a predetermined direction from the traverse region R at the start of the winding operation. (See the alternate long and short dash line in package P in FIG. 8 (d)). After that, the control unit 28 moves so that the position of the traverse area R in the predetermined direction when the weight of the package P reaches the target weight substantially coincides with the position of the traverse area R in the predetermined direction at the start of the winding operation. The drive unit 50 is controlled (see the two-dot chain line in FIG. 8D). As a result, the amount of swelling of the end face E2 can be suppressed, and the radial outer portion of the package P can be suppressed from being biased to one side in a predetermined direction as compared with the control of (1) above. By such control, ideally, as shown in FIG. 8D, the amount of swelling of the end face E1 in the predetermined direction becomes 2 × dLr, and the amount of swelling of the end face E2 in the predetermined direction becomes zero. Is the most preferable. However, the present invention is not limited to this, and by reducing the amount of swelling, it is possible to prevent the margin portion of the other end of the bobbin B in the predetermined direction from becoming narrow.

As described above, by moving the traverse device 22 in at least a predetermined direction by the moving drive unit 50, the movement range (traverse area R) of the thread Y accompanying the drive of the traverse guide 32 included in the traverse device 22 is set in the predetermined direction. Can be moved in. This makes it possible to suppress fluctuations in the relative positions of the traverse region R and the bobbin B in a predetermined direction. Therefore, it is possible to suppress the occurrence of a problem in the formation of the package P due to the fluctuation of the relative position between the traverse region R and the bobbin B.

Further, as in the present embodiment, in a configuration in which the traverse region R is fixed to the traverse device 22 (specifically, a blade type traverse device), the movement drive unit 50 is particularly provided. It is valid.

Further, the traverse device 22 includes all of the plurality of traverse guides 32. As a result, the traverse areas R of all the traverse guides 32 can be moved by one moving drive unit 50. Therefore, the structure of the spinning take-up machine 1 can be simplified as compared with the configuration requiring a plurality of moving drive units (not shown).

Further, the moving drive unit 50 has a ball screw mechanism 51 capable of adjusting the position of the traverse device 22 in a predetermined direction. This makes it possible to precisely adjust the position of the traverse device 22 as compared with a configuration in which the traverse device 22 is moved by a propulsive force, for example, as in an air cylinder (not shown).

Further, by adjusting the angles of the traverse device 22 and the contact roller 25 by the angle adjusting unit 27, the variation in the contact pressure between the packages P due to the thickening of the plurality of packages P is suppressed. However, simply adjusting the angle may cause the traverse region R to shift in a predetermined direction with respect to the bobbin B, and the shape of the package P may collapse. In this respect, in the present embodiment, since the traverse region R can be suppressed from being displaced in a predetermined direction with respect to the bobbin B by the moving drive unit 50, it is possible to effectively suppress the shape of the package P from being deformed.

Further, the moving drive unit 50 is configured to move the support member 26 in the same manner as the angle adjusting unit 27. Therefore, the design can be simplified as compared with the case where the spinning taker 1 is configured to move the traverse device 22 with respect to the support member 26.

Further, the position of the traverse area R is adjusted during the winding operation. Therefore, the shape of the package P can be effectively adjusted, or the shape of the package P can be freely changed to some extent.

Further, the spinning taker 1 has a position information acquisition unit (control unit 28 or a sensor (not shown)). Thereby, the amount of deviation of the traverse region R in the predetermined direction due to the error in the length of the bobbin B can be known based on the position information. Therefore, the position information can be used to compensate for the deviation of the traverse region R with respect to the bobbin B in a predetermined direction.

Further, the positional deviation of the traverse region R with respect to the bobbin B due to the error in the length of the bobbin B can be known in advance by the position information acquisition unit before the start of the winding operation. The control unit 28 controls the movement drive unit 50 before the start of the winding operation based on the position information. Therefore, the above-mentioned misalignment can be effectively compensated.

Further, as the first control example by the control unit 28, the control unit 28 controls the movement drive unit 50 so as to reduce the positional deviation between the traverse region R and the bobbin B in a predetermined direction. Such control is particularly effective when it is desired to make the shape of the package P symmetrical in a predetermined direction.

Further, as the second control example by the control unit 28, the traverse region R is intentionally moved to one side in a predetermined direction during the winding operation. In this way, by allowing an increase in the amount of swelling of the end face E1 on one side (the side with a wide margin of the bobbin B) in the predetermined direction of the package P, the other side (bobbin B) in the predetermined direction of the package P is correspondingly increased. The amount of swelling of the end face E2 on the side where the margin is narrow) can be reduced. Therefore, since it is possible to suppress the narrowing of the margin on the other side of the bobbin B in the predetermined direction, it is possible to reduce the risk that the thread Y protrudes from the bobbin B.

Further, as described above, the control unit 28 may move the traverse device 22 to one side in a predetermined direction and then to the other side in a predetermined direction during the winding operation. As a result, it is possible to suppress the narrowing of the margin on the other side of the bobbin B in the predetermined direction, and to prevent the radial outer portion of the package P from being biased to one side in the predetermined direction.

Next, a modified example in which the embodiment is modified will be described. However, those having the same configuration as that of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted as appropriate.

(1) The moving drive unit 50 (see FIG. 6) may be provided in the spinning take-up machine 1a as shown in FIG. 9A. In the spinning take-up machine 1a, two take-up devices 4A and 4B having the same functions as the take-up device 4 of the spinning take-up machine 1 are arranged substantially symmetrically in the left-right direction. For example, the take-up device 4A has the same structure as the take-up device 4 described above. The take-up device 4B has a structure substantially symmetrical with respect to the take-up device 4A in the left-right direction. The take-up device 4A has a bobbin holder 24A, and the take-up device 4B has a bobbin holder 24B. The rear ends of both the bobbin holders 24A and 24B are cantilevered. Further, as shown in FIG. 9B, the plurality of bobbins B (bobbin BA) mounted on the bobbin holder 24A and the plurality of bobbins (bobbin BB) mounted on the bobbin holder 24B are opposite to each other in the front-rear direction. Have been placed. That is, the slit S of the bobbin BA is located on the front side, and the slit S of the bobbin BB is located on the rear side. In such a configuration, the bobbin holder 24A and the bobbin holder 24B are rotationally driven in opposite directions so that the winding direction of the thread Y wound on the bobbin BA and the winding direction of the thread Y wound on the bobbin BB are the same. Can be. Thereby, the above-mentioned package P can be formed by both the winding device 4A and the winding device 4B. Here, when the moving drive unit 50 (see FIG. 6) is not provided, when the bobbin holders 24A and 24B bend downward due to the winding thickness of the package P, the directions of the bobbin BA and the bobbin BB are opposite to each other. Due to some, the following problems can occur. That is, in the winding device 4A, the package P can be distorted in a predetermined direction on the opposite side of the slit S. On the other hand, in the winding device 4B, the package P may be distorted toward the slit S in a predetermined direction. As described above, the winding device 4A and the winding device 4B may form packages P having different shapes from each other. In this respect, by providing the moving drive unit 50 in both the winding device 4A and the winding device 4B of the spinning take-up machine 1a, the above-mentioned problem can be avoided. In the spinning take-back machine 1a, the above-mentioned first control example may be carried out. Alternatively, the second control example may be implemented. When the second control example is carried out in the spinning take-up machine 1a, considering that the directions of the bobbin BA and the bobbin BB are opposite to each other, between the take-up device 4A and the take-up device 4B. Therefore, the amount of movement of the traverse region R by the movement drive unit 50 may be different from each other.

(2) In the above-described embodiment, the moving drive unit 50 has a ball screw mechanism 51, but the present invention is not limited to this. For example, the mobile drive unit 50 may have a rack and pinion mechanism (not shown). Alternatively, the moving drive unit 50 may be configured to move the traverse device 22 by the pressure of a fluid such as an air cylinder (not shown).

(3) In the above-described embodiment, the winding device 4 has an angle adjusting unit 27, but the present invention is not limited to this. Even in a configuration in which the take-up device 4 does not have the angle adjusting portion 27, the positional relationship between the traverse region R and the bobbin B may shift due to the bobbin holder 24 bending as the package P is rolled up. In such a configuration, it is effective to move the traverse device 22 in at least a predetermined direction by the moving drive unit 50.

(4) In the above-described embodiment, the bobbin holder 24 is cantilevered and supported, but the present invention is not limited to this. The bobbin holder 24 may be held on both sides (that is, the bobbin holder 24 may be suppressed from bending due to the roll thickness of the package P). Even in such a configuration, the positional relationship between the traverse region R and the bobbin B in a predetermined direction may shift due to an error in the total length of the plurality of bobbins B. In such a configuration, it is effective to move the traverse device 22 in at least a predetermined direction by the moving drive unit 50.

(5) In the above-described embodiment, the control unit 28 controls the moving drive unit 50 to move the traverse device 22 both before the start of the winding operation and during the winding operation. Not limited to. The control unit 28 may control the movement drive unit 50 only at one of the timings before the start of the winding operation and during the winding operation.

(6) In the above-described embodiment, the control unit 28 controls the movement drive unit 50 based on various information, but the present invention is not limited to this. For example, the positional deviation between the traverse region R and the bobbin B in a predetermined direction due to an error in the total length of the plurality of bobbins B may be compensated via an operator as shown below. That is, the operator may acquire information on the total length of the plurality of bobbins B in advance by some method. The operator may derive information on the amount of movement of the traverse device 22 by the movement drive unit 50 based on the information, and input the information to an operation unit (not shown). The moving drive unit 50 may move the traverse device 22 based on the information input to the operation unit.

(7) In the above-described embodiments, the angle adjusting unit 27 moves the rear end portion of the support member 26 in the vertical direction, but the present invention is not limited to this. For example, the position of the rear end portion of the support member 26 in the vertical direction is fixed, and the angle adjusting portion 27 may be configured to move the front end portion of the support member 26 in the vertical direction. Alternatively, both the front end portion and the rear end portion of the support member 26 may be individually configured to be movable in the vertical direction. Further, the support member 26 is swingably supported by the frame body 20b, but the present invention is not limited to this. The support member 26 may be configured to be linearly moved and driven in a direction perpendicular to the front-rear direction, for example.

(8) In the above embodiments, it is assumed that the traverse device 22 is attached to the support member 26. That is, the support member 26 is moved by the moving drive unit 50, so that the traverse device 22 also moves integrally with the support member 26. However, the traverse device 22 does not necessarily have to be configured to move integrally with the support member 26. That is, for example, the support member 26 may have a rail member (not shown), and the traverse device 22 may be configured to be movable with respect to the support member 26 along the rail. A moving drive unit (not shown) configured to move the traverse device 22 with respect to the support member 26 may be provided.

(9) In the above-described embodiment, it is assumed that all the traverse guides 32 belonging to the winding device 4 are included in the traverse device 22. In other words, in the above-described embodiment, all the traverse guides 32 are driven by the traverse motor 33, which is a common drive source. However, it is not limited to this. For example, the same number of traverse devices (not shown) may be provided as the number of traverse guides 32. That is, a plurality of traverse devices may individually drive a plurality of traverse guides 32 by traverse motors (not shown) provided in each. Alternatively, for example, a plurality of traverse devices may be provided, each having a plurality of traverse guides 32. Also in this case, each traverse device may have a traverse motor (not shown). As described above, in a configuration in which a plurality of traverse devices are provided, a moving drive unit (not shown) that individually moves and drives each traverse device in a predetermined direction may be provided. Alternatively, not all of the plurality of traverse devices need to be moved and driven in a predetermined direction. Only a part of the plurality of traverse devices may be moved and driven by the moving drive unit.

(10) In the above-described embodiment, the traverse device 22 is a blade type traverse device. However, the type of the traverse device 22 is not limited to this. For example, the traverse device 22 may be an arm-type traverse device having an arm 61 (exemplified in FIG. 9) for swinging the traverse guide 32 and a motor (not shown) for swinging the arm. good. That is, the traverse guide 32 may be attached to the tip end portion of the arm 61 that is driven by swinging, and may be configured to swing the thread Y by swinging. Even in such a configuration, the traverse region R is fixed to the housing 31. Alternatively, the traverse device 22 includes an endless belt (not shown) to which the traverse guide 32 is fixed, a motor for reciprocating the endless belt (not shown), and a plurality of pulleys (not shown) around which the endless belt is wound. And may have. In such a configuration, it is possible to change the position (and / or length) of the traverse region R in a predetermined direction during the winding operation, but the entire traverse device 22 is moved by the moving drive unit 50. Is also good.

(11) In the above-described embodiments, the traverse region R is fixed to the housing 31 (that is, fixed to the traverse device 22), but the present invention is not limited to this. For example, a moving drive unit that moves the center position of the traverse region R in a predetermined direction with respect to the housing 31 may be provided.

(12) The present invention is not limited to the above-mentioned spinning take-up machines 1 and 1a, and is applicable to a thread take-up machine that winds a plurality of yarns Y on a plurality of bobbins B arranged side by side in a predetermined direction.

1 Spinning taker (thread taker)
22 Traverse device 24 Bobbin holder 25 Contact roller 26 Support member 27 Angle adjustment unit 28 Control unit (position information acquisition unit, 1st control unit, 2nd control unit, 3rd control unit, 4th control unit)
32 Traverse guide 34 Blade guide 50 Moving drive part 51 Ball screw mechanism (linear actuator)
61 Arm B Bobbin P Package R Traverse Area S Slit Y Thread

The contact roller 25 is arranged immediately above the upper bobbin holder 24. The axial direction of the contact roller 25 is substantially parallel to the front-rear direction. The contact roller 25 is configured to apply contact pressure to the surfaces of a plurality of packages P supported by the upper bobbin holder 24 to adjust the shape of the packages P.

Claims (13)

A thread winder that winds multiple threads onto multiple bobbins to form multiple packages.
A bobbin holder that is arranged so as to extend in a predetermined direction and holds the plurality of bobbins side by side in the predetermined direction.
A plurality of traverse guides for twilling the plurality of threads along the predetermined direction, and a plurality of traverse guides.
A traverse device comprising at least one of the plurality of traverse guides and configured to drive the at least one traverse guide.
A thread winder including a moving drive unit for moving the traverse device in at least the predetermined direction. The thread winder according to claim 1, wherein the traverse region of the at least one traverse guide is fixed to the traverse device. Each of the plurality of traverse guides
2. The described thread winder. The thread winder according to any one of claims 1 to 3, wherein the traverse device includes all of the plurality of traverse guides. The thread winder according to any one of claims 1 to 4, wherein the moving drive unit has a linear actuator configured to be able to adjust the position of the traverse device in the predetermined direction. The bobbin holder is cantilevered and supported so as to extend at least horizontally.
A contact roller arranged so as to extend at least in the predetermined direction and applying contact pressure to the plurality of packages.
The thread winder according to any one of claims 1 to 5, further comprising an angle adjusting unit configured to be able to adjust the angle of the traverse device and the contact roller with respect to the horizontal direction. A support member that supports the traverse device and the contact roller and is configured to be movable by the angle adjuster.
The thread winder according to claim 6, wherein the moving drive unit is configured to move and drive the support member in at least the predetermined direction. Equipped with a first control unit
The thread winding according to any one of claims 1 to 7, wherein the first control unit controls the moving drive unit during a winding operation of winding the plurality of threads on the plurality of bobbins. Machine. The thread winder according to any one of claims 1 to 8, further comprising a position information acquisition unit for acquiring position information regarding a position of a predetermined portion of the plurality of bobbins in the predetermined direction. Equipped with a second control unit
9. The second control unit is characterized in that, based on the position information, the second control unit controls the movement drive unit before the start of the winding operation of winding the plurality of yarns on the plurality of bobbins. The described thread winder. Equipped with a third control unit
The third control unit is
The spool according to any one of claims 1 to 10, wherein the moving drive unit is controlled so as to reduce the positional deviation between the traverse region of the at least one traverse guide and the bobbin in the predetermined direction. Machine. Each bobbin held by the bobbin holder is formed with a slit in which the thread is hooked on one end in the predetermined direction.
Equipped with a fourth control unit
The fourth control unit is
Claim 1 is characterized in that, during a winding operation of winding the plurality of threads on the plurality of bobbins, the movement driving unit is controlled to move the traverse device to at least one side in the predetermined direction. The thread winder according to any one of 11 to 11. The fourth control unit is
The thread winder according to claim 12, wherein during the winding operation, the traverse device is moved to the one side in the predetermined direction and then to the other side in the predetermined direction.

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