JP2023125831A - Yarn winding machine - Google Patents

Abstract

To provide a yarn winding machine capable of preventing yarn from dropping outside in an axial direction of a package, in the yarn winding machine in which the yarn needs to be removed from a traverse device when a bobbin is changed over to continue the winding of the yarn.SOLUTION: A yarn winding machine 1 comprises a traverse device 21, a contact roller 31, a turret plate, a yarn-removing device, and regulation guides 75. The turret plate, when changing over a bobbin, changes positions of a first bobbin holder 41 and a second bobbin holder 42. The yarn-removing device, when changing over the bobbin, removes the yarn wound around a first bobbin 91 from the traverse device 21. The regulation guides 75 are provided as a pair, and, before the operation of removing the yarn from the traverse device 21 by the yarn-removing device is completed, the yarn wound around the first bobbin 91 is regulated in a yarn layer region of the first bobbin 91 in an axial direction of a package 94.SELECTED DRAWING: Figure 3

Description

The present invention relates to a yarn winding machine including a plurality of bobbin holders.

The yarn take-up machine disclosed in Patent Document 1 winds yarn around a bobbin while traversing the yarn to manufacture a package. The spinning winder includes two bobbin holders and a guide bar. The take-up machine switches the positions of the bobbin holders after one bobbin holder completes winding the yarn into the package. As a result, the empty bobbin is located at the winding position. The guide bar winds the yarn supplied in the package onto the empty bobbin after switching the position of the bobbin holder. The thread between the empty bobbin and the package is then cut. This allows you to switch bobbins and continue winding the thread.

Japanese Patent Application Publication No. 7-268722

In the thread winding machine of Patent Document 1, the bobbin is switched to continue winding the thread while the thread is held in the traverse device. However, in a thread winding machine with a different configuration, a slit-shaped thread catching section is formed at the end of the empty bobbin outside the thread winding area, and the thread being supplied to the package is forced to follow the thread catching section. The yarn is captured by the empty bobbin. In this type of yarn winding machine, in order to move the yarn supplied to the package to the yarn catching section at the end of the empty bobbin, it is necessary to remove the yarn from the traverse device. However, if the yarn is located at the end of the traverse width when the yarn is removed from the traverse device, the yarn falls to the end of the bobbin on the axially outer side of the yarn layer of the package, and the tension of the yarn decreases. This caused the process to be unable to continue.

The present invention has been made in view of the above circumstances, and its main purpose is to prevent the thread from being removed from the traverse device in a thread winding machine where it is necessary to remove the thread from the traverse device when changing the bobbin to continue winding the thread. An object of the present invention is to provide a yarn winding machine capable of suppressing a package from falling outward in the axial direction.

Means and effects for solving problems

The problem to be solved by the present invention is as described above, and next, the means for solving this problem and the effects thereof will be explained.

According to the aspect of the present invention, a yarn winding machine having the following configuration is provided. That is, the thread winding machine includes a first bobbin holder, a second bobbin holder, a traverse device, a contact roller, a bobbin holder moving mechanism, a thread removing device, and a regulation guide. The first bobbin holder holds a first bobbin. The second bobbin holder holds a second bobbin. The traverse device traverses the yarn wound around the first bobbin or the second bobbin. The contact roller contacts the first bobbin, the second bobbin, or the package, and sends the yarn traversed by the traverse device to the first bobbin, the second bobbin, or the package. The bobbin holder moving mechanism moves from a state in which the second bobbin leaves the contact roller and the first bobbin or the package contacts the contact roller to wind yarn around the first bobbin to manufacture a package. At the time of bobbin switching, when the bobbin leaves the contact roller and the second bobbin or the package comes into contact with the contact roller to wind yarn around the second bobbin to manufacture a package, the first bobbin holder and the first bobbin holder 2 Change the position of the bobbin holder. The thread removing device removes the thread wound on the first bobbin from the traverse device when switching the bobbin. The regulation guides are provided as a pair, and the regulation guides are configured to control the thread wound on the first bobbin in the winding width direction before the thread removal device completes the operation of removing the thread from the traverse device. Regulated within the yarn layer area.

Thereby, since the yarn is restricted within the yarn layer area of the first bobbin by the restriction guide, it is possible to suppress the yarn from falling to the outside in the axial direction of the package when switching the bobbin.

The yarn winding machine described above preferably has the following configuration. That is, in the yarn winding machine, the pair of regulation guides regulates a portion of the yarn located between the first bobbin remote from the contact roller and the contact roller that is closer to the first bobbin. .

Thereby, the thread can be regulated at a position close to the first bobbin (package), so that it is possible to more reliably prevent the thread from falling to the outside of the package in the axial direction.

The yarn winding machine described above preferably has the following configuration. That is, a winding device is provided that acts on the yarn between the first bobbin, which is separated from the contact roller, and the contact roller, and winds the yarn around the second bobbin. The pair of regulation guides are attached to the winding device.

This allows the pair of regulation guides and the winding device to be integrated, thereby simplifying the structure of the yarn winding machine.

The yarn winding machine described above preferably has the following configuration. That is, the yarn between the first bobbin, which is separated from the contact roller, and the contact roller is wound around the second bobbin by the winding device. After being regulated by the pair of regulation guides, the thread removing device removes the thread from the traverse device.

As a result, the thread is regulated by the pair of regulation guides before the thread is removed from the traverse device, so that it is possible to more reliably prevent the thread from falling to the outside of the package in the axial direction.

The yarn winding machine described above preferably has the following configuration. That is, in the yarn winding machine, after the yarn between the first bobbin separated from the contact roller and the contact roller is wound around the second bobbin by the winding device, the yarn is wound between the second bobbin and the contact roller. A cutting device is provided to cut the thread between the yarn and the first bobbin. The cutting device is attached to the winding device.

Accordingly, since the cutting device and the regulation guide are attached to the winding device, the members that act on the connecting thread can be arranged together. As a result, the structure can be simplified.

The yarn winding machine described above preferably has the following configuration. That is, each of the pair of regulation guides includes a wall portion and an auxiliary portion. The wall portion is provided so as to be located within the yarn layer area of the first bobbin, and prevents the yarn wound on the first bobbin from exceeding the yarn layer area. The auxiliary part is provided in a range from the wall part to at least a yarn layer area outside the wall part, and the auxiliary part is configured to move the yarn wound on the first bobbin beyond the outside of the wall part to the wall part. guide inside.

As a result, the auxiliary part guides the thread inside the wall, and the wall prevents the thread from coming out of the wall. As a result, the yarn can be more reliably regulated so as to be located within the yarn layer region.

The yarn winding machine described above preferably has the following configuration. That is, the yarn winding machine includes a yarn shifting device. The second bobbin is formed with a slit-shaped yarn catching portion for causing the second bobbin to catch the yarn between the first bobbin and the contact roller that is separated from the contact roller when switching the bobbin. There is. The yarn shifting device gathers the yarn between the first bobbin and the contact roller, which are separated from the contact roller, toward the slit-shaped yarn catching section. Of the pair of regulation guides, the regulation guide on the side closer to the thread catching section regulates the thread gathered toward the slit-shaped thread catching section within the thread layer region of the first bobbin.

Thereby, by using one of the pair of regulation guides, it is possible to prevent the thread from falling off the surface of the thread layer when the thread is brought together. That is, since one regulation guide has two functions, the structure can be simplified compared to a configuration in which separate guides are provided for each function.

FIG. 1 is a front view of a yarn winding machine according to an embodiment of the present invention. Block diagram of a thread winding machine. FIG. 3 is a perspective view of the periphery of the first housing and the second housing. The side view which shows a regulation position and a thread layer area. FIG. 2 is a perspective view of a thread shifting device. 5 is a flowchart showing a process of switching from a state where a package is manufactured using a first bobbin to a state where a package is manufactured using a second bobbin. FIG. 3 is an explanatory diagram showing the first half of the process of switching from a state where a package is manufactured using a first bobbin to a state where a package is manufactured using a second bobbin. FIG. 6 is an explanatory diagram showing the latter half of the process of switching from a state where a package is manufactured using a first bobbin to a state where a package is manufactured using a second bobbin.

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a yarn winding machine 1 according to an embodiment of the present invention. FIG. 2 is a block diagram of the yarn winding machine 1. In the following description, upstream or downstream in the running direction of the yarn may be simply referred to as upstream or downstream.

A spinning machine (not shown) is arranged upstream of the yarn winding machine 1 shown in FIG. The spinning machine produces yarn 93 and supplies it to the yarn winding machine 1 . The yarn winding machine 1 winds the yarn 93 onto the first bobbin 91 or the second bobbin 92 to manufacture a package 94. FIG. 1 shows a state in which a yarn 93 is wound around a first bobbin 91 to form a yarn layer and a package 94 is manufactured. On the other hand, the second bobbin 92 is an empty bobbin in which the thread 93 is not wound. The thread 93 is, for example, an elastic thread such as spandex. However, the type of thread 93 is not limited to elastic thread, and may be synthetic fiber thread such as nylon or polyester, for example.

Further, in this embodiment, a plurality of yarns 93 arranged in the axial direction of the package 94 are supplied from the spinning machine to the yarn winding machine 1 . Further, a plurality of first bobbins 91 are arranged in the axial direction of the package 94. The thread winding machine 1 winds a plurality of threads 93 onto the first bobbin 91 to manufacture a plurality of packages 94.

The details of the yarn winding machine 1 will be explained below. As shown in FIG. 1, the thread winding machine 1 includes a frame 11, a first housing 20, a second housing 30, and a turret plate (bobbin holder moving mechanism) 40.

The frame 11 is a member that holds each part of the yarn winding machine 1. A traverse device 21 is attached to the first housing 20. The traverse device 21 traverses the yarn 93 sent downstream by reciprocating the yarn 93 in the winding width direction (the axial direction of the package 94) with a traverse guide 23, which will be described later, engaged with the yarn 93. A yarn layer is formed on the first bobbin 91 or the second bobbin 92 by this traverse action of the yarn 93. As shown in FIG. 2, the traverse device 21 includes a traverse cam 22 and a traverse guide 23.

The traverse cam 22 is a roller-shaped member arranged parallel to the first bobbin 91 and the second bobbin 92. A spiral cam groove is formed on the outer peripheral surface of the traverse cam 22. The traverse cam 22 is rotationally driven by a traverse motor 51.

Traverse motor 51 is controlled by control device 50 . The control device 50 includes a CPU, ROM, RAM, and the like. The CPU executes various controls regarding the yarn winding machine 1 by reading programs stored in the ROM into the RAM and executing them.

The traverse guide 23 is a portion that engages with the thread 93. The tip of the traverse guide 23 has, for example, a substantially U-shaped guide portion, which engages with the thread 93 so as to sandwich the thread 93 in the winding width direction. The base end of the traverse guide 23 is located in the cam groove of the traverse cam 22. With this configuration, by rotationally driving the traverse cam 22, the traverse guide 23 can be reciprocated in the winding width direction.

A contact roller 31 is rotatably attached to the second housing 30. The contact roller 31 is driven to rotate while contacting the yarn layer of the package 94 with a predetermined pressure when winding the yarn 93, thereby sending the yarn 93 from the traverse guide 23 to the yarn layer of the package 94 and removing the yarn from the package 94. Adjust the layer shape. Note that the contact roller 31 may be rotationally driven using a drive unit such as a motor.

The second housing 30 is provided with an operation panel 32 . The operation panel 32 is a device operated by an operator. The operator issues instructions to the yarn winding machine 1 by operating the operation panel 32. Examples of instructions given by the operator include starting winding, stopping winding, and changing winding conditions.

As shown in FIG. 2, the yarn winding machine 1 includes a lifting device 60. The lifting device 60 raises and lowers the first housing 20 and the second housing 30 integrally. Specifically, the first housing 20 and the second housing 30 are attached to a lifting member 65. A ball nut 61 is attached to this elevating member 65. Further, a threaded rod 62 is attached to the frame 11. By rotating the threaded rod 62 using the lifting motor 63, the first housing 20 and the second housing 30 can be raised and lowered. The lifting motor 63 is controlled by the control device 50. Note that the lifting device 60 may be realized using a cylinder instead of a ball screw.

The turret plate 40 is a disc-shaped member. The turret plate 40 is rotatably attached to the frame 11. The rotation axis of the turret plate 40 is the center position of the turret plate 40. The turret plate 40 is rotationally driven by a turret motor 53 shown in FIG. Turret motor 53 is controlled by control device 50 .

A first bobbin holder 41 and a second bobbin holder 42 are provided at two locations on the turret plate 40 that face each other with the center position in between. A plurality of first bobbins 91 can be attached to the first bobbin holder 41 in alignment in the axial direction. A plurality of second bobbins 92 can be attached to the second bobbin holder 42 in alignment in the axial direction. By rotating the turret plate 40, the positions of the first bobbin holder 41 and the second bobbin holder 42 can be changed. Note that as long as the positions of the first bobbin holder 41 and the second bobbin holder 42 can be changed, another device may be used instead of the turret plate 40.

The first bobbin holder 41 is rotatable with respect to the turret plate 40 with the axial position of the first bobbin holder 41 as the rotation center. The first bobbin holder 41 is rotationally driven by a first bobbin holder motor 54 shown in FIG. Similarly, the second bobbin holder 42 is rotatable with respect to the turret plate 40 with the axial position of the second bobbin holder 42 as the rotation center. The second bobbin holder 42 is rotationally driven by a second bobbin holder motor 55 shown in FIG. The first bobbin holder motor 54 and the second bobbin holder motor 55 are controlled by the control device 50.

As shown in FIG. 1, in a state where the first bobbin holder 41 and the second bobbin holder 42 are arranged vertically, the position of the higher first bobbin holder 41 is the winding position, and the position of the lower second bobbin holder 42 is the winding position. This is the standby position. The yarn winding machine 1 winds the yarn 93 around the first bobbin 91 of the first bobbin holder 41 in the winding position to manufacture a package 94.

Further, when a predetermined amount of yarn 93 is wound up and the package 94 of the first bobbin holder 41 is fully wound, the positions of the first bobbin holder 41 and the second bobbin holder 42 are switched by rotating the turret plate 40. Thereafter, the fully wound package 94 of the first bobbin holder 41 in the standby position is recovered, and the thread 93 is wound around the second bobbin 92 of the second bobbin holder 42 in the winding position. A new first bobbin 91 is attached to the first bobbin holder 41 from which the package 94 has been collected. Below, the time (period) from the state in which the thread 93 is wound on the first bobbin 91 to manufacture the package 94 to the state in which the thread 93 is wound on the second bobbin 92 to manufacture the package 94 is referred to as "bobbin". "When switching".

As shown in FIGS. 3 and 4, the yarn winding machine 1 includes a winding device 71. The winding device 71 performs a winding operation when switching the bobbin. As shown in the upper diagram of FIG. 8, which will be described later, the winding operation is performed by acting on the connecting thread 93a stretched between the first bobbin 91 and the second bobbin 92 (pressing the connecting thread 93a). , which is an operation of winding the thread 93 around the second bobbin 92 at a predetermined angle. The winding device 71 includes an unillustrated actuator (cylinder, solenoid, motor, etc.) for performing a winding operation. The actuator of the winding device 71 is controlled by the control device 50. Thereby, the tip of the winding device 71 (the part that presses the connecting thread 93a) is movable between an operating position where the connecting thread 93a is pressed and a retracted position where the winding device 71 is retracted from the operating position.

A regulation guide 75 is attached to the tip of the winding device 71. The regulating guide 75 regulates the position of the connecting thread 93a when switching the bobbin, before the thread removing device 85 (described later) completes the operation of removing the thread from the traverse device 21. As shown in FIG. 4, the regulation guide 75 includes a wall portion 76 and an auxiliary portion 77. One pair of regulation guides 75 is provided for each bobbin 91, 92 mounted on the bobbin holders 41, 42.

Two wall portions 76 are provided for one bobbin 91, 92, and the two wall portions 76 are positioned to face each other. The positions of the two wall portions 76 (more specifically, the positions of the wall surfaces) are the restriction positions. Moreover, as shown in FIG. 4, the area of the first bobbin 91 where the thread 93 is wound is referred to as a thread layer area. The regulating positions of the two wall portions 76 are located within the yarn layer region in the axial direction of the package 94. Thereby, the regulation guide 75 (wall portion 76) regulates the thread 93 wound around the first bobbin 91 within the thread layer region (prevents the thread 93 from exceeding the thread layer region).

The auxiliary part 77 is a part that guides the connecting thread 93a so that it is located inside the two wall parts 76. The auxiliary part 77 is provided in the axial direction of the package 94 in a range from the wall part 76 to a position outside the wall part 76 and beyond the yarn layer area. The auxiliary portion 77 has a portion that slopes or curves toward the winding device 71 as it approaches the center of the yarn layer region in the axial direction of the package 94 . Thereby, the auxiliary part 77 guides the thread 93 wound around the first bobbin 91 to the inside of the two wall parts 76. Specifically, during the winding operation by the winding device 71, the connecting thread 93a approaches the regulation guide 75. At this time, if the connecting thread 93a contacts the auxiliary part 77 (that is, if the position of the connecting thread 93a exceeds the outside of the wall part 76), the connecting thread 93a is guided along the slope of the auxiliary part 77. Ru. As a result, the connecting thread 93a is guided inside the two walls 76. In addition, the boundary between the auxiliary part 77 and the wall part 76 is chamfered in an arc shape so as not to damage the thread 93 when guiding the connecting thread 93a.

The plurality of regulation guides 75 of this embodiment are connected to the base end portion 74. In other words, the base end portion 74 and the plurality of regulation guides 75 are integrally formed, and furthermore, they are configured as a single plate-shaped member. Alternatively, individual regulation guides 75 may be attached to the winding devices 71, respectively. Moreover, the shape of the regulation guide 75 of this embodiment is an example, and can be changed as appropriate. For example, the auxiliary part 77 may be omitted.

A cutting device 81 is further attached to the tip of the winding device 71. The cutting device 81 is a device that cuts the connecting thread 93a after the thread 93 is wound around the second bobbin 92 by the winding device 71. The cutting device 81 includes a fixed blade 82 and a movable blade 83. The cutting device 81 includes an unillustrated actuator for moving the movable blade 83. The cutting device 81 cuts the thread 93 by sandwiching the thread 93 between a fixed blade 82 and a movable blade 83. The actuator of the cutting device 81 is controlled by the control device 50. One cutting device 81 is provided for each bobbin 91, 92 mounted on the bobbin holder 41, 42. The cutting device 81 is provided at a position where it can cut the thread 93 from a thread catching section 92a to a wall 76 on the thread catching section 92a side, which will be described later.

The cutting device 81 and the regulation guide 75 of this embodiment are fastened together to the winding device 71. Specifically, the mounting hole of the cutting device 81, the mounting hole of the regulation guide 75, and the mounting hole of the winding device 71 are all fastened together with bolts or the like. Note that the cutting device 81 and the regulation guide 75 may be separately attached to the winding device 71. Moreover, the cutting device 81 of this embodiment is an example, and the structure which is not divided into the fixed blade 82 and the movable blade 83 may be sufficient.

As shown in FIGS. 3 and 4, a slit-shaped thread catching portion 92a is formed near the end of the second bobbin 92 in the axial direction (for example, on the outside in the winding width direction). (The same applies to the first bobbin 91). The thread catching section 92a is used to make the second bobbin 92 catch the thread 93 between the first bobbin 91 separated from the contact roller 31 and the contact roller 31 at the time of bobbin switching. The yarn catcher 92a is generally used when manufacturing a package 94 of relatively thick elastic yarn with high stretchability. Note that the thread catching section 92a is not essential and may be omitted. In this case, the thread 93 can be fixed to the second bobbin 92 by winding the thread 93 around the second bobbin 92, for example.

As shown in FIG. 3, a thread shifting device 88 is arranged above the traverse device 21. At the time of bobbin switching, the thread pulling device 88 removes the thread between the contact roller 31 and the first bobbin 91 that has been separated from the contact roller 31 after the thread removal device 85 (described later) removes the thread 93 from the traverse guide 23. 93 to the thread catching portion 92a of the second bobbin 92. As shown in FIG. 5, the thread shifting device 88 includes a base plate 88a, a slide plate 88c, a thread shifting member 88d, and a drive device 88e.

A slide hole 88b is formed in the base plate 88a. The slide plate 88c is configured to be slidable along the slide hole 88b with respect to the base plate 88a. A plurality of thread shifting members 88d are fixed to the slide plate 88c at regular intervals. Each yarn shifting member 88d gathers the plurality of yarns 93 arranged in the winding width direction toward the yarn catching section 92a by sliding the slide plate 88c. The drive device 88e is a cylinder, and its base end (piston side) is fixed to the base plate 88a, and its distal end (rod side) is fixed to the slide plate 88c. By expanding and contracting the drive device 88e, the slide plate 88c (thread shifting member 88d) can be operated with respect to the base plate 88a. Further, the drive device 88e is controlled by the control device 50. The thread shifting device 88 described above is an example, and the thread shifting device 88 may be realized with a different configuration.

Next, with reference to FIGS. 6 to 8, the state changes from a state in which a package 94 is manufactured by winding the thread 93 around the first bobbin 91 to a state in which a package 94 is manufactured by winding the thread 93 around the second bobbin 92. The switching process will be explained.

The upper diagram in FIG. 7 shows a state in which a package 94 is manufactured by winding the yarn 93 around the first bobbin 91 of the first bobbin holder 41. Specifically, the traverse device 21 traverses the thread 93 wound around the first bobbin 91. The contact roller 31 contacts the first bobbin 91 (package 94) and sends the yarn 93 traversed by the traverse device 21 to the first bobbin 91 (package 94). As a result, the thread 93 is wound around the first bobbin 91 and a package 94 is manufactured. While winding the thread 93, the control device 50 determines whether the package 94 of the first bobbin holder 41 is fully wound (S101). For example, the control device 50 determines whether the package 94 is fully wound based on the detected value of a sensor that detects the position of the contact roller 31 or the like as the package 94 becomes thicker or a sensor that detects the winding length of the thread 93. Determine whether or not it has occurred.

When the control device 50 determines that the package 94 of the first bobbin holder 41 is fully wound, the control device 50 controls the lifting device 60 to raise the first housing 20 and the second housing 30 (S102).

Next, the control device 50 controls the second bobbin 92 to be separated from the contact roller 31, the first bobbin 91 (package 94) to contact the contact roller 31, to wind the yarn 93 around the first bobbin 91, and to form the package 94. The first bobbin 91 is separated from the contact roller 31, and the second bobbin 92 (package 94) contacts the contact roller 31 and winds the thread 93 around the second bobbin 92 to produce the package 94. Switch to the state where First, the control device 50 switches the positions of the first bobbin holder 41 and the second bobbin holder 42 by controlling the turret motor 53 (S103). Thereby, the second bobbin holder 42 is located at the winding position, and the first bobbin holder 41 is located at the standby position. The lower diagram in FIG. 7 shows the state after completion of step S103. As shown in this figure, by switching the positions of the two bobbins, the thread 93 is wound between the first bobbin 91 (package 94) and the second bobbin 92. As described above, this thread 93 corresponds to the connecting thread 93a.

Next, the control device 50 lowers the first housing 20 and the second housing 30 by controlling the lifting device 60 (S104). As a result, the contact roller 31 comes into contact with the second bobbin 92 of the second bobbin holder 42 .

Next, the control device 50 controls the winding device 71 to cause the winding device 71 to perform a winding operation (S105). Thereby, the tip of the winding device 71 presses the connecting thread 93a, so that the contact length of the thread 93 with the second bobbin 92 becomes longer. By rotationally driving the second bobbin holder 42 in this state, the thread 93 is wound around the second bobbin 92. The upper diagram in FIG. 8 shows the state after the winding device 71 has performed the winding operation. As described above, the regulation guide 75 is attached to the tip of the winding device 71. Therefore, by the winding device 71 performing the winding operation, the yarn 93 wound around the first bobbin 91 is regulated within the yarn layer region of the first bobbin 91 in the axial direction of the package 94 . Further, the regulation guide 75 regulates a portion of the thread 93 located between the first bobbin 91 remote from the contact roller 31 and the contact roller 31 that is closer to the first bobbin 91 . Specifically, as shown in the upper diagram of FIG. 8, between the contact roller 31 and the first bobbin 91 (package 94), there is a space (indicated by symbol A) on the first bobbin 91 side from the center in the vertical direction. ) is regulated by the regulation guide 75. Thereby, the yarn 93 can be restricted within the yarn layer area at a position close to the package 94.

Next, the control device 50 removes the thread 93 from the traverse device 21 by controlling the thread removing device 85 (S106). That is, the restriction of the yarn 93 by the restriction guide 75 is performed before the operation of the yarn removal device 85 to remove the yarn 93 from the traverse device 21 is completed. The thread removing device 85 is configured to remove the thread 93 from the traverse guide 23 by pressing the thread 93 toward the second housing 30 and deflecting the thread path. In this embodiment, the thread 93 is wound around the second bobbin 92, and the thread 93 is restricted within the thread layer area of the first bobbin 91. Therefore, even if the thread 93 is removed from the traverse guide 23, the thread 93 does not fall to the outside of the package 94 in the winding width direction.

Next, the control device 50 controls the thread shifting device 88 to shift the thread 93 toward the thread catching portion 92a of the second bobbin 92 (S107). As a result, the thread 93 enters the thread catching portion 92a, and the thread 93 is fixed to the second bobbin 92. At this time, of the pair of regulation guides 75, the regulation guide 75 on the side closer to the yarn catcher 92a in the axial direction of the package 94 (75 on the left side in FIG. 8) controls the yarn 93 gathered toward the yarn catcher 92a. is regulated within the yarn layer area of the first bobbin 91. This can prevent the yarn 93 from falling from the package 94 during yarn gathering. Then, the control device 50 cuts the connecting thread 93a by controlling the cutting device 81 (S108). With the above, the switching from the state in which the yarn 93 is wound around the first bobbin 91 to manufacture the package 94 to the state in which the yarn 93 is wound around the second bobbin 92 to manufacture the package 94 is completed.

Thereafter, as shown in the lower diagram of FIG. Normal winding is resumed (S109).

As explained above, the yarn winding machine 1 of the present embodiment includes the first bobbin holder 41, the second bobbin holder 42, the traverse device 21, the contact roller 31, the turret plate 40, the yarn removing device 85, A regulation guide 75 is provided. The first bobbin holder 41 holds the first bobbin 91. The second bobbin holder 42 holds a second bobbin 92. The traverse device 21 traverses the thread 93 wound around the first bobbin 91 or the second bobbin 92. The contact roller 31 contacts the first bobbin 91, the second bobbin 92, or the package 94, and sends the yarn traversed by the traverse device 21 to the first bobbin 91, the second bobbin 92, or the package 94. The turret plate 40 changes from a state in which the second bobbin 92 leaves the contact roller 31 and the first bobbin 91 or the package 94 contacts the contact roller 31 to wind the yarn 93 around the first bobbin 91 to manufacture the package 94. At the time of bobbin switching, the first bobbin 91 leaves the contact roller 31 and the second bobbin 92 or the package 94 contacts the contact roller 31 to wind the thread 93 around the second bobbin 92 to manufacture the package 94. The positions of the bobbin holder 41 and the second bobbin holder 42 are changed. The thread removing device 85 removes the thread 93 wound around the first bobbin 91 from the traverse device 21 when switching the bobbin. The regulation guides 75 are provided as a pair, and are configured to move the thread 93 wound around the first bobbin 91 in the axial direction of the package 94 before the thread removal device 85 completes the operation of removing the thread 93 from the traverse device 21. It is regulated within the yarn layer area of the first bobbin 91.

Thereby, the regulating guide 75 regulates the thread 93 within the thread layer region of the first bobbin 91, so that it is possible to suppress the thread 93 from falling to the outside in the axial direction of the package 94 when switching the bobbin.

In the yarn winding machine 1 of the present embodiment, the pair of regulation guides 75 are arranged on the first bobbin 91 that is distant from the contact roller 31 and on the side of the yarn 93 that is located between the contact roller 31 and which is closer to the first bobbin 91. regulate that part.

Thereby, the thread can be regulated at a position close to the first bobbin 91 (package 94), so that it is possible to more reliably prevent the thread 93 from falling to the outside of the package 94 in the axial direction.

In the yarn winding machine 1 of this embodiment, the winding device 71 acts on the yarn 93 between the first bobbin 91 separated from the contact roller 31 and the contact roller 31 and winds the yarn 93 around the second bobbin 92. Equipped with A pair of regulation guides 75 are attached to the winding device 71.

Thereby, the pair of regulation guides 75 and the winding device 71 can be integrated, so that the structure of the yarn winding machine 1 can be simplified.

In the yarn winding machine 1 of this embodiment, the yarn 93 between the first bobbin 91 which is separated from the contact roller 31 and the contact roller 31 is wound around the second bobbin 92 by the winding device 71 . After being regulated by the pair of regulation guides 75, the thread removing device 85 removes the thread from the traverse device 21.

Thereby, the thread 93 is regulated by the pair of regulation guides 75 before the thread 93 is removed from the traverse device 21, so that it is possible to more reliably prevent the thread 93 from falling to the outside of the package 94 in the axial direction.

In the yarn winding machine 1 of the present embodiment, after the yarn 93 between the first bobbin 91 separated from the contact roller 31 and the contact roller 31 is wound around the second bobbin 92 by the winding device 71, A cutting device 81 that cuts the thread 93 between the bobbin 92 and the first bobbin 91 is provided. A cutting device 81 is attached to the wrapping device 71.

Accordingly, since the cutting device 81 and the regulation guide 75 are attached to the winding device 71, the members that act on the connecting thread 93a can be arranged together. As a result, the structure can be simplified.

In the yarn winding machine 1 of this embodiment, each of the pair of regulation guides 75 includes a wall portion 76 and an auxiliary portion 77. The wall portion 76 is provided so as to be located within the yarn layer area of the first bobbin 91, and prevents the yarn 93 wound on the first bobbin 91 from exceeding the yarn layer area. The auxiliary part 77 is provided in a range from the wall part 76 to at least the yarn layer area outside the wall part 76, and the auxiliary part 77 is provided in a range from the wall part 76 to at least the yarn layer area outside the wall part 76, and the auxiliary part 77 is configured to move the yarn 93 wound on the first bobbin 91 beyond the outside of the wall part 76 to the wall part. 76.

As a result, the yarn 93 is guided inside the wall 76 by the auxiliary portion 77, and the yarn 93 is prevented from coming out from the wall 76 by the wall 76. As a result, the yarn 93 can be more reliably regulated to be located within the yarn layer region.

The yarn winding machine 1 of this embodiment includes a yarn shifting device 88. The second bobbin 92 is formed with a slit-shaped yarn catching portion 92a for causing the second bobbin 92 to catch the yarn 93 between the first bobbin 91 and the contact roller 31 that are separated from the contact roller 31 when switching the bobbin. ing. The yarn shifting device 88 gathers the yarn 93 between the first bobbin 91 and the contact roller 31, which are separated from the contact roller 31, toward the slit-shaped yarn catching section 92a. Of the pair of regulation guides 75, the regulation guide 75 on the side closer to the thread catcher 92a regulates the thread 93 gathered toward the slit-shaped thread catcher 92a within the thread layer region of the first bobbin 91.

Thereby, by using one of the pair of regulation guides 75, it is possible to prevent the thread from falling off from the surface of the thread layer when the thread is brought together. That is, since one regulation guide 75 has two functions, the structure can be simplified compared to a configuration in which separate guides are provided for each function.

Although the preferred embodiments of the present invention have been described above, the above configuration can be modified as follows, for example.

In the above embodiment, the regulation guide 75 is attached to the winding device 71, but the regulation guide 75 may be attached to another member. In this case, an actuator is provided for moving the regulation guide 75 close to and away from the connecting thread 93a, and the regulation guide 75 can be driven independently with respect to the winding device 71. The regulation guide 75 may immediately return to the standby position after the thread removal device 85 removes the thread.

The timing at which the regulation guide 75 regulates the position of the thread 93 is not limited to the example shown in the above embodiment. For example, the regulation guide 75 may regulate the position of the thread 93 before the contact roller 31 and the second bobbin 92 come into contact with each other.

If the regulating position of the regulating guide 75 is too close to the end of the yarn layer region, the yarn 93 may fall axially outward from the package 94 due to the rounded end of the yarn layer. Therefore, the regulating position of the regulating guide 75 is preferably located a predetermined distance inside from the end of the yarn layer region. In addition, when the regulation guide 75 is also used as a guide to prevent the thread from falling when pulling the thread, if the regulation position of the regulation guide 75 is too close to the center of the yarn layer area, it will be far from the thread catching section 92a. , the thread 93 is less likely to be caught by the thread catching portion 92a. Therefore, it is preferable to determine the restriction position of the restriction guide 75 in consideration of the above.

The thread catching portion 92a is not limited to being outside the thread layer region, but may be formed within the thread layer region. Even in this case, since it is necessary to remove the thread 93 from the traverse device 21, the regulation guide 75 of the present invention can be utilized. Note that if the yarn catching portion 92a is formed at the center of the yarn layer area, the yarn shifting device 88 can be omitted.

In the embodiment described above, after the thread 93 is captured by the thread catching section 92a, the cutting device 81 is used to cut the thread 93. However, if the thread 93 connected to the first bobbin 91 is torn off by being caught by the thread catching portion 92a, the cutting device 81 may be omitted.

The flowchart shown in the above embodiment is an example, and some processes may be omitted, the contents of some processes may be changed, or new processes may be added. Further, the next process may be started before one process is completed. For example, after the connecting thread 93a is guided by the regulation guide 75 at the tip of the winding device 71, the thread removing device 85 may be operated before the winding operation of the winding device 71 is completed.

Although the traverse device 21 of the above embodiment is a cam drum type, it may have a different configuration as long as it is possible to reciprocate the traverse guide 23 in the winding width direction. For example, instead of the traverse device 21, a belt-type traverse device may be used.

1 Yarn winder 21 Traverse device 31 Contact roller 40 Turret plate (bobbin holder moving mechanism)
41 First bobbin holder 42 Second bobbin holder 71 Winding device 75 Regulation guide 76 Wall portion 77 Auxiliary portion 81 Cutting device 85 Thread removal device 88 Thread shifting device 91 First bobbin 92 Second bobbin 93 Thread 93a Connecting thread 94 Package

According to the aspect of the present invention, a yarn winding machine having the following configuration is provided. That is, the thread winding machine includes a first bobbin holder, a second bobbin holder, a traverse device, a contact roller, a bobbin holder moving mechanism, a thread removing device, and a regulation guide. The first bobbin holder holds a first bobbin. The second bobbin holder holds a second bobbin. The traverse device traverses the yarn wound around the first bobbin or the second bobbin. The contact roller contacts the first bobbin, the second bobbin, or the package, and sends the yarn traversed by the traverse device to the first bobbin, the second bobbin, or the package. The bobbin holder moving mechanism winds the thread onto the first bobbin in a state where the second bobbin and the contact roller are separated and a state where the first bobbin or package and the contact roller are in contact with each other. from a state in which a package is being manufactured, the first bobbin and the contact roller are separated from each other, and the second bobbin or package is in contact with the contact roller, and the thread is applied to the second bobbin. The positions of the first bobbin holder and the second bobbin holder are changed at the time of switching the bobbin to a state of winding and manufacturing a package. The thread removing device removes the thread wound on the first bobbin from the traverse device when switching the bobbin. The regulation guides are provided so as to correspond to both sides of the yarn layer region of the first bobbin, and the regulation guides are arranged so as to correspond to both sides of the yarn layer region of the first bobbin, and the regulation guides are arranged so that the first bobbin The yarn wound on the first bobbin is restricted within the yarn layer area of the first bobbin in the axial direction of the package.

The yarn winding machine described above preferably has the following configuration. That is, in the yarn winding machine, the regulation guide regulates a portion of the yarn located between the first bobbin remote from the contact roller and the contact roller that is closer to the first bobbin. .

The yarn winding machine described above preferably has the following configuration. That is, a winding device is provided that acts on the yarn between the first bobbin, which is separated from the contact roller, and the contact roller, and winds the yarn around the second bobbin. The regulation guide is attached to the winding device.

This allows the regulation guide and the winding device to be integrated, thereby simplifying the structure of the yarn winding machine.

The yarn winding machine described above preferably has the following configuration. That is, the yarn between the first bobbin, which is separated from the contact roller, and the contact roller is wound around the second bobbin by the winding device. After being regulated by the regulation guide, the thread removal device removes the thread from the traverse device.

As a result, the yarn is regulated by the regulation guide before the yarn is removed from the traverse device, so that it is possible to more reliably prevent the yarn from falling to the outside in the axial direction of the package.

The yarn winding machine described above preferably has the following configuration. That is, the regulation guide includes a wall portion and an auxiliary portion. The wall portion is provided so as to be located within the yarn layer area of the first bobbin, and prevents the yarn wound on the first bobbin from exceeding the yarn layer area. The auxiliary part is provided in a range from the wall part to at least a yarn layer area outside the wall part, and the auxiliary part is configured to move the yarn wound on the first bobbin beyond the outside of the wall part to the wall part. guide inside.

The yarn winding machine described above preferably has the following configuration. That is, the yarn winding machine includes a yarn shifting device. The second bobbin is formed with a slit-shaped yarn catching portion for causing the second bobbin to catch the yarn between the first bobbin and the contact roller that is separated from the contact roller when switching the bobbin. There is. The yarn shifting device gathers the yarn between the first bobbin and the contact roller, which are separated from the contact roller, toward the slit-shaped yarn catching section . The regulating guide on the side closer to the thread catching section regulates the thread gathered toward the slit-shaped thread catching section within the thread layer region of the first bobbin.

Thereby, by using one of the regulation guides, it is possible to prevent the thread from falling off from the surface of the thread layer when pulling the thread. That is, since one regulation guide has two functions, the structure can be simplified compared to a configuration in which separate guides are provided for each function.

Claims (7)

a first bobbin holder that holds a first bobbin;
a second bobbin holder that holds a second bobbin;
a traverse device that traverses the yarn wound on the first bobbin or the second bobbin;
a contact roller that contacts the first bobbin, the second bobbin, or the package and sends the yarn traversed by the traverse device to the first bobbin, the second bobbin, or the package;
From a state in which the second bobbin is separated from the contact roller and the first bobbin or the package contacts the contact roller to wind yarn around the first bobbin to manufacture a package, the first bobbin moves away from the contact roller. changing the positions of the first bobbin holder and the second bobbin holder when switching the bobbin to a state where the second bobbin or the package comes into contact with the contact roller and winds yarn around the second bobbin to manufacture a package; a bobbin holder moving mechanism,
a thread removing device that removes the thread wound on the first bobbin from the traverse device when switching the bobbin;
Before the thread removal device completes the operation of removing the thread from the traverse device, a pair of regulatory guide and
A yarn winding machine characterized by comprising: The yarn winding machine according to claim 1,
The yarn winding characterized in that the pair of regulation guides regulates a portion of the yarn located between the first bobbin remote from the contact roller and the contact roller that is closer to the first bobbin. Machine. The yarn winding machine according to claim 1 or 2,
a winding device that acts on a yarn between the first bobbin separated from the contact roller and the contact roller and winds the yarn around the second bobbin;
A yarn winding machine characterized in that the pair of regulation guides are attached to the winding device. The yarn winding machine according to claim 3,
The thread between the first bobbin that is separated from the contact roller and the contact roller is wound around the second bobbin by the winding device,
The yarn winding machine is characterized in that the yarn removing device removes the yarn from the traverse device after the yarn is regulated by the pair of restriction guides. The yarn winding machine according to claim 3 or 4,
After the yarn between the first bobbin separated from the contact roller and the contact roller is wound around the second bobbin by the winding device, the yarn between the second bobbin and the first bobbin Equipped with a cutting device to cut the
A yarn winding machine characterized in that the cutting device is attached to the winding device. A yarn winding machine according to any one of claims 1 to 4,
Each of the pair of regulatory guides includes:
a wall portion located within the yarn layer area of the first bobbin to prevent the yarn wound on the first bobbin from exceeding the yarn layer area;
The yarn is provided in a range from the wall portion to at least a yarn layer region outside the wall portion, and guides the yarn wound on the first bobbin beyond the outside of the wall portion to the inside of the wall portion. Auxiliary part and
A yarn winding machine characterized by comprising: A yarn winding machine according to any one of claims 1 to 6,
Equipped with a thread pulling device,
The second bobbin includes a slit-shaped yarn catching portion for causing the second bobbin to catch the yarn between the first bobbin separated from the contact roller and the contact roller when switching the bobbin. is formed,
The yarn pulling device gathers the yarn between the first bobbin separated from the contact roller and the contact roller toward the slit-shaped yarn catching portion,
Of the pair of regulation guides, the regulation guide on the side closer to the thread catching section regulates the thread gathered toward the slit-shaped thread catching section within the thread layer region of the first bobbin. Characteristic yarn winding machine.

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