JP2012201495A - Winding unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding unit which adjusts the position of a yarn feeding bobbin to a reeling auxiliary device by a simple structure.SOLUTION: The winder unit has a bobbin supply device 60 supplying a yarn feeding bobbin 21, a yarn feeding bobbin support 80 supporting the yarn feeding bobbin 21, and the reeling auxiliary device 12 supporting the yarn reeling of the yarn feeding bobbin 21. The yarn feeding bobbin support 80 has a core member 52, a holding portion 53, and a support surface 86. The core member 52 is inserted into a bobbin tube 21a to direct the reeling auxiliary device at a specified position in the support state. The holding portion 53 holds the yarn feeding bobbin 21 by extending in a direction perpendicular to the shaft center of the core member 52 and contacting with an inner surface of the bobbin tube 21a in the support state. The support surface 86 contacts with an end opposite to the yarn reeling side of the bobbin tube 21a and determines a distance from the end at the yarn reeling side of the bobbin tube 21a to the reeling auxiliary device in the support state.

Description

  The present invention relates to a winding unit that unwinds a yarn from a yarn supplying bobbin and winds the yarn around a winding bobbin.

  2. Description of the Related Art Conventionally, a winding unit that forms a package by winding a yarn unwound from a yarn supplying bobbin onto a winding bobbin is known. As a configuration for supporting the yarn feeding bobbin on the winding unit, Patent Documents 1 and 2 disclose a winding unit including a holding peg that supports the inside of the bobbin tube at a plurality of fulcrums. Further, in the winding unit, in order to adjust the tension (unwinding tension) generated in the yarn unwound from the yarn feeding bobbin to an appropriate strength and form a good winding package, the unwinding assisting device It may be provided near the yarn feeding bobbin (on the yarn unwinding side). As the unwinding assisting device, for example, a configuration is known in which a balloon formed at the unwinding position where the yarn of the yarn supplying bobbin is unwound is adjusted by a cylindrical balloon regulating portion.

JP-A-9-124230 JP 2006-89284 A

  In order to stabilize the unwinding tension, it is necessary to set the yarn feeding bobbin at the correct position with respect to the unwinding assisting device. That is, when the yarn feeding bobbin is set in a state of being deviated from the unwinding assisting device, the unwinding tension varies greatly depending on the turning position where the yarn circulates around the yarn feeding bobbin when the yarn is unwound. Therefore, the quality of the winding package is deteriorated, which is not preferable. It is preferable that the yarn supplying bobbin is set at a position where the axis of the yarn supplying bobbin coincides with the axis of the cylindrical balloon regulating portion. Further, it is preferable that the yarn supplying bobbin is set at a position where the distance between the unwinding side end portion of the yarn supplying bobbin and the balloon restricting portion becomes a predetermined value.

  On the other hand, a yarn feeding bobbin in which yarn is wound around a bobbin tube having various shapes and inner diameters is supplied to the winding unit according to the yarn type and the like. However, if the type of yarn feeding bobbin is different, the contact area when the winding unit supports the bobbin tube changes, so the setting position of the yarn feeding bobbin is slightly shifted, and the unwinding tension is reduced as described above. It often leads to stabilization. Therefore, every time the type of the yarn feeding bobbin supplied to the winding unit is changed, the operator makes sure that the axis of the yarn feeding bobbin coincides with the axis of the balloon regulating unit, and the yarn feeding from the balloon regulating unit. It was necessary to precisely adjust the position of the yarn feeding bobbin so that the distance to the bobbin became a predetermined value. This work has been a heavy burden on the operator.

  On the other hand, the holding pegs disclosed in Patent Documents 1 and 2 support the inner periphery of the yarn feeding bobbin at a plurality of fulcrums by a plurality of claw members (tightening claw group, gripping piece). The bobbin tube can be wound up without changing the positional relationship between the bobbin and the winding device. Therefore, in the bobbin holding pegs described in Patent Documents 1 and 2, the axis when the yarn feeding bobbin is unwound can be matched with the axis of the balloon restricting portion.

  However, since the bobbin holding peg of Patent Document 1 is configured to support the bobbin tube of the yarn feeding bobbin with a receiving portion configured in a tapered shape, the bobbin holding peg between the unwinding side end portion of the yarn feeding bobbin and the balloon regulating portion The distance varies depending on the size of the inner diameter of the bobbin tube. That is, when supporting a bobbin tube having a large inner diameter, the yarn supplying bobbin is far from the balloon restricting portion, and when supporting a bobbin tube having a small inner diameter, the yarn supplying bobbin is close to the balloon restricting portion. In such a case, since the balloon cannot be adjusted properly, the winding unit cannot perform winding with an appropriate unwinding tension.

  On the other hand, the bobbin holding peg of Patent Document 2 includes only a claw member that contacts the inner surface of the inserted bobbin tube, and includes a shaft portion (a member disposed on an extension line in the vertical direction of the axis of the bobbin tube). Absent. Since it is difficult to accurately grasp the position of the axis of the bobbin tube inserted into the bobbin holding peg only from the position of the claw member, when positioning the center of the bobbin holding peg with respect to the unpacking assisting device, the operator In actuality, it is necessary to support the yarn feeding bobbin on the bobbin holding peg and align the yarn feeding bobbin as a mark. Therefore, adjustment work has been complicated. In addition, since this bobbin holding peg has a mechanically complicated configuration, maintenance is difficult.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a winding unit capable of adjusting the position of the yarn feeding bobbin with respect to the unwinding assisting device with a simple configuration.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, a winding unit having the following configuration is provided. That is, the winding unit includes a yarn supplying bobbin supplying unit, a yarn supplying bobbin supporting unit, and a unwinding assisting device. The yarn supplying bobbin supplying unit supplies a yarn supplying bobbin formed by winding a yarn around a bobbin tube. The yarn feeding bobbin support portion supports the yarn feeding bobbin supplied from the yarn feeding bobbin supply portion. The unwinding assisting device assists in unwinding the yarn of the yarn feeding bobbin supported by the yarn feeding bobbin support portion. The yarn feeding bobbin support portion includes a shaft portion, a holding portion, and a height adjusting portion. The shaft portion can be inserted into the bobbin tube and is directed toward the unwinding assisting device at a predetermined position that is defined in advance in a supporting state in which the yarn feeding bobbin is supported. The holding portion is attached to the shaft portion and, in the supported state, spreads in a direction perpendicular to the axis of the shaft portion and contacts the inner surface of the bobbin tube to hold the yarn feeding bobbin. In the supporting state, the height adjusting portion comes into contact with an end portion of the bobbin tube opposite to the yarn unwinding side at a certain height, so that the bobbin tube ends from the end of the bobbin unwinding side. Determine the distance to the unwinding aid.

  As a result, the winding unit of the present invention has the yarn supplying bobbin aligned with the unwinding reference position at both the position of the shaft center of the yarn supplying bobbin and the position of the unwinding side end of the yarn supplying bobbin. It can be supported in a state. Therefore, the winding unit can perform the winding operation while keeping the tension generated in the yarn accompanying unwinding from the yarn supplying bobbin at an appropriate strength by the unwinding assisting device. Further, the position of the shaft center of the yarn supplying bobbin supported by the yarn supplying bobbin support portion is equal to the position of the shaft center of the shaft portion. Therefore, the operator can accurately align the shaft center of the yarn feeding bobbin with the unwinding assisting device by observing the position of the shaft portion without actually supporting the yarn feeding bobbin on the yarn feeding bobbin support portion. it can.

  In the winding unit, the holding portion is spread at a plurality of positions in the axial direction of the shaft portion in a direction perpendicular to the axis of the shaft portion and can contact the inner surface of the bobbin tube. Is preferred.

  As a result, the bobbin tube can be restrained at a plurality of locations in the axial direction, so that the holding unit can hold the yarn supplying bobbin more stably.

  The winding unit preferably has the following configuration. In other words, the holding part includes a first holding member and a second holding member arranged side by side in the axial direction of the shaft part. The first holding member and the second holding member spread in a direction perpendicular to the axis of the shaft portion and can contact the inner surface of the bobbin tube.

  That is, when the yarn feeding bobbin is held at a plurality of locations in the axial direction, the yarn feeding bobbin can be held more stably when the holding locations are separated from each other. In this respect, the above-described configuration can hold portions separated from each other with a compact configuration (for example, without using a holding portion that is elongated in the axial direction).

  The winding unit preferably has the following configuration. That is, the winding unit includes a pressing portion, a transmission portion, and a support portion. The pressing portion presses the first holding member. The transmission unit transmits the pressing force received by the first holding member to the second holding member. The support portion supports the second holding member at a certain height, thereby generating a repulsive force against the pressing force on the second holding member. The transmitting portion transmits the pressing force and the repulsive force so that both the first holding member and the second holding member are in contact with the inner surface of the bobbin tube. Distribute to the holding member.

  Thereby, for example, both the first holding member and the second holding member can be pressed against the inner surface of the bobbin tube even for a bobbin tube having a uniform inner diameter or a stepped bobbin tube. Therefore, a highly versatile yarn feeding bobbin support portion can be realized.

  The winding unit preferably has the following configuration. That is, the transmission portion is disposed between the first holding member and the second holding member, and is movable in the axial direction of the shaft portion. The first holding member and the second holding member spread in a direction orthogonal to the axial direction by being pressed in the axial direction of the shaft portion by the movement of the transmission portion.

  Thereby, said effect that a yarn feeding bobbin support part with high versatility can be realized can be realized with a simple configuration. In addition, since the first holding member and the second holding member can be pressed against the inner surface of the bobbin tube with good balance, the yarn feeding bobbin can be supported more stably.

  The winding unit preferably has the following configuration. That is, this winding unit includes a spring member. The pressing portion uses the spring force of the spring member to expand the holding portion in a direction perpendicular to the axis of the shaft portion.

  As a result, the amount of enlargement of the holding portion is automatically adjusted according to the inner diameter of the bobbin tube (because the difference in the inner diameter of the bobbin tube can be absorbed on the elastic member side). Can be realized.

  In the winding unit, it is preferable that at least one of the first holding member and the second holding member is resin.

  Thereby, even if the first holding member or the second holding member has a complicated shape, it can be easily molded.

  In the winding unit, it is preferable that at least one of the first holding member and the second holding member is an elastic body having a cylindrical shape and having a groove formed on an inner peripheral surface.

  Accordingly, when the cylindrical holding member receives a force in the axial direction of the shaft portion, the holding member spreads around the position where the groove is formed, so that the shape of the holding member at the time of deformation can be made constant. Therefore, since the holding member comes into contact with a substantially constant portion of the bobbin tube, the bobbin tube can be held more stably.

  In the winding unit, it is preferable that at least one of the first holding member and the second holding member is an elastic body in which a plurality of cuts are formed in the axial direction of the shaft portion.

  As a result, the holding member in which the cut is formed can hold the bobbin tube so that the contact portion with the bobbin tube has a certain length in the axial direction when supporting the yarn feeding bobbin. . Therefore, the bobbin tube can be held more stably. Moreover, this holding member can spread greatly in the direction orthogonal to the axial center of a shaft part. Accordingly, the holding member can hold the yarn feeding bobbin by appropriately contacting these bobbin tubes even when the variation in the inner diameter of the bobbin tubes is large.

  In the winding unit, of the first holding member and the second holding member, the holding member that contacts the inner surface of the bobbin tube on the yarn unwinding side has a smaller diameter than the other holding member. It is preferable.

  As a result, the holding unit realizes a tapered layout as a whole in the direction in which the yarn supplying bobbin is supplied. Thereby, in the winding unit of the present invention, when the yarn supplying bobbin is supplied from the yarn supplying bobbin supplying unit, it is possible to reduce the bobbin tube of the yarn supplying bobbin from being caught by the holding unit. Therefore, supply mistakes of the yarn feeding bobbin can be reduced.

  In the winding unit, it is preferable that the height adjustment portion is a flat support surface formed in a direction orthogonal to the axis of the shaft portion in the support state.

  As a result, the contact area between the height adjustment portion and the bobbin tube can be increased, so that the yarn feeding bobbin can be accurately placed at the unwinding reference position as compared with a configuration in which the bobbin tube is supported by a lattice-like member. Can be matched.

  The winding unit preferably has the following configuration. That is, the unwinding assisting device includes a unwinding cylinder member that is a cylinder member that assists unwinding of the yarn of the yarn supplying bobbin. The shaft center of the shaft portion in the support state coincides with the shaft center of the unwinding cylinder member.

  Thereby, it can match | combine so that the axial center of a unwinding cylinder member and the axial center of a yarn feeding bobbin may correspond. Therefore, the winding operation can be performed while maintaining the tension generated in the yarn to be unwound from the yarn supplying bobbin at a more appropriate strength.

  In the winding unit, it is preferable that the unwinding cylinder member approaches an end of the bobbin tube opposite to the yarn unwinding side as the yarn of the yarn supplying bobbin is unwound.

  Thereby, the tension | tensile_strength which generate | occur | produces in the thread | yarn which is unwound from a yarn feeding bobbin can be kept at more appropriate strength.

The typical side view of a winder unit. The perspective view which shows the structure of a bobbin set part. The side view which shows typically operation | movement of a bobbin setting part. The side view which shows the structure of the bobbin setting part after reception of a yarn feeding bobbin, and before holding | maintenance of a yarn feeding bobbin. The side view which shows a mode that a bobbin setting part hold | maintains a yarn feeding bobbin. The perspective view which shows the shape of a 1st holding member. The figure which shows another structure of a holding | maintenance part. The figure which shows another structure of a holding | maintenance part. The figure which shows another structure of a holding | maintenance part. The figure which shows another structure of a holding | maintenance part.

  Next, embodiments of the present invention will be described with reference to the drawings. First, an outline of the automatic winder of the present embodiment will be described with reference to FIG. FIG. 1 is a schematic side view of a winder unit (winding unit). In the following description, the front side of the winder unit 4 may be simply referred to as “front side”, and the back side of the winder unit 4 may be simply referred to as “back side”.

  The automatic winder of this embodiment has a configuration in which a large number of winder units 4 are arranged side by side. The automatic winder includes an unillustrated machine base management device for centrally managing the winder unit 4 and an unillustrated blower box including a compressed air source and a negative pressure source.

  The winder unit 4 is a device for forming a package 29 by winding the yarn of the yarn supplying bobbin 21 around the winding bobbin 22. As shown in FIG. 1, a bobbin supply device (yarn supply bobbin supply unit) 60 for an operator to supply the yarn supply bobbin 21 is disposed on the front side of the winder unit 4. The bobbin supply device 60 includes a magazine holder 61 installed from the lower part of the winder unit 4 toward the front upper direction, a magazine can 62 attached to the tip of the magazine holder 61, and a lower part of the magazine can 62. An installed yarn feeding bobbin guide 64.

  The magazine can 62 is formed with a plurality of storage holes arranged in a circle, and the yarn feeding bobbin 21 can be set in an inclined posture in each storage hole. The magazine can 62 is configured to be intermittently driven by a motor (not shown). The magazine can 62 is intermittently driven, so that the plurality of yarn feeding bobbins 21 set in the magazine can 62 can be moved one by one to a passing portion that leads to the yarn feeding bobbin guide portion 64. Then, the yarn feeding bobbin 21 moved to the common part falls obliquely downward from the magazine can 62.

  The yarn feeding bobbin guide unit 64 is configured to slide the yarn feeding bobbin 21 that has fallen from the magazine can 62 obliquely and guide it to the bobbin setting unit 10. 2, the bobbin setting unit 10 includes a discharge plate 40 for discharging the yarn supply bobbin 21 (bobbin tube 21a) that has been unwound, and a yarn supply bobbin that supports the bobbin. A support unit 80 and a drive unit 100 that drives the discharge plate 40 and the yarn feeding bobbin support unit 80 are provided. The detailed configuration of the bobbin setting unit 10 will be described later.

  Further, the yarn feeding bobbin support portion 80 is configured to be swingable between the back side and the front side. The yarn feeding bobbin support portion 80 can receive the yarn feeding bobbin 21 guided by the yarn feeding bobbin guiding portion 64 by swinging from the back side to the front side. Further, the yarn supplying bobbin support portion 80 swings to the back side, whereby the received yarn supplying bobbin 21 can be brought into a substantially upright state. Thus, the yarn 20 of the yarn feeding bobbin 21 set on the yarn feeding bobbin support portion 80 of the bobbin setting unit 10 is wound up by the winding unit 16. In the following description, a state in which the yarn supplying bobbin 21 when the yarn 20 is wound by the winding unit 16 is supported by the yarn supplying bobbin support unit 80 may be referred to as a support state.

  Next, the winding unit 16 will be described. As shown in FIG. 1, the winding unit 16 includes a cradle 23 configured to be capable of mounting the winding bobbin 22, a traverse drum 24 for traversing the yarn 20 and driving the winding bobbin 22, It has.

  Further, the winding unit body 6 includes various devices in a yarn traveling path between the bobbin setting unit 10 and the traverse drum 24. Specifically, as the main devices arranged in the yarn traveling path, the unwinding assisting device 12, the tension applying device 13, the yarn splicing device, in order from the bobbin set unit 10 side to the traverse drum 24 side. A device 14 and a clearer (yarn quality measuring device) 15 are arranged.

  As shown in FIG. 1, the unwinding assisting device 12 includes a fixed member 71, a movable member (unwinding cylinder member) 72, and an elevating member 73.

  The fixing member 71 is fixed to the unit frame via an appropriate member. A throttle part (not shown) for controlling the balloon is formed below the fixing member 71. The movable member 72 is formed in a cylindrical shape and is disposed so as to cover the outside of the fixed member 71.

  The elevating member 73 is formed integrally with the movable member 72. The elevating member 73 and the movable member 72 are configured to be movable in the vertical direction. Further, the elevating member 73 includes a sensor (not shown) that detects the chase portion of the yarn feeding bobbin 21.

  With this configuration, the elevating member 73 can be lowered as the yarn 20 of the yarn supplying bobbin 21 is unwound and the position of the chase portion is lowered. As a result, the distance between the chase portion and the movable member 72 can be always constant. Therefore, the winder unit 4 is unwound from the yarn supplying bobbin 21 by appropriately regulating the size of the balloon generated at the position where the yarn is dissociated from the chase portion when the yarn supplying bobbin 21 is unwound. The winding operation can be performed while keeping the tension of the yarn 20 constant.

  In order to fully demonstrate the above-described unwinding assisting function of the unwinding assisting device 12, it is necessary to set the yarn feeding bobbin 21 at a predetermined correct position (hereinafter referred to as unwinding reference position). Here, the unwinding reference position means that the axis of the yarn feeding bobbin 21 and its extension line coincide with the axis of the movable member 72 and its extension line, and the unwinding side end of the yarn feeding bobbin 21 is It means a position at a predetermined distance to the unwinding assisting device 12. In the following description, the axis of the yarn supplying bobbin 21 when the yarn supplying bobbin 21 is correctly set at the unwinding reference position may be referred to as “reference axis L1”. The reference axis L1 coincides with the axis of the movable member 72.

  The tension applying device 13 applies a predetermined tension to the traveling yarn 20. The tension applying device 13 of this embodiment is configured as a gate type in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are configured to be rotatable by a rotary solenoid so that the comb teeth are in a meshed state or a released state.

  Further, a lower thread detection sensor 31 is disposed between the unwinding assisting device 12 and the tension applying device 13. The lower thread detection sensor 31 is configured to be able to detect whether or not the thread is traveling at the position where it is disposed.

  The clearer 15 is configured to detect a yarn defect (yarn defect) such as a slab by monitoring the thickness of the yarn 20. Further, a cutter 39 for cutting the yarn 20 immediately when the clearer 15 detects a yarn defect is disposed upstream (downward) of the yarn path from the clearer 15.

  The yarn joining device 14 detects when the clearer 15 detects a yarn defect and cuts the yarn with the cutter 39, when the yarn being unwound from the yarn feeding bobbin 21 is broken, or when the yarn feeding bobbin 21 is replaced. For example, the lower thread on the yarn feeding bobbin 21 side and the upper thread on the package 29 side are spliced. As such a yarn splicing device 14, a device using a fluid such as compressed air or a mechanical device can be used.

  A lower thread guide pipe 25 for capturing and guiding the lower thread on the yarn supplying bobbin 21 side is provided below the yarn joining device 14. An upper thread guide pipe 26 for capturing and guiding the upper thread on the package 29 side is provided on the upper side of the yarn joining device 14. A suction port 32 is formed at the tip of the lower thread guide pipe 25, and a suction mouth 34 is provided at the tip of the upper thread guide pipe 26. Appropriate negative pressure sources are connected to the lower thread guide pipe 25 and the upper thread guide pipe 26, respectively, and a suction force can be generated in the suction port 32 and the suction mouth 34.

  With this configuration, when replacing the yarn feeding bobbin, the suction port 32 of the lower thread guide pipe 25 rotates downward to suck and capture the lower thread, and then rotates upward about the shaft 33. The lower thread is guided to the yarn joining device 14. At substantially the same time, the winder unit 4 rotates the upper thread guide pipe 26 upward from the position shown in FIG. 2 about the shaft 35 and reversely rotates the package 29 to unwind the upper thread from the package 29. Is captured by the suction mouse 34. Subsequently, the winder unit 4 guides the upper yarn to the yarn joining device 14 by rotating the upper yarn guide pipe 26 downward about the shaft 35. In the yarn joining device 14, the lower yarn and the upper yarn are joined.

  With the above configuration, each winder unit 4 of the automatic winder can wind the yarn 20 unwound from the yarn feeding bobbin 21 onto the winding bobbin 22 to form a package 29 having a predetermined length.

  Next, the bobbin setting unit 10 will be described in detail with reference to FIGS. FIG. 2 is a perspective view showing the configuration of the bobbin setting unit 10. FIG. 3 is a side view schematically showing the operation of the bobbin setting unit 10. FIG. 4 is a side view showing the configuration of the bobbin setting unit 10 after receiving the yarn feeding bobbin 21 and before holding the yarn feeding bobbin 21. FIG. 5 is a side view showing how the bobbin setting unit 10 holds the yarn supplying bobbin 21.

  As shown in FIG. 2, the bobbin setting unit 10 includes a yarn supplying bobbin support unit 80 for supporting the supplied yarn supplying bobbin 21 and a discharge for discharging the yarn supplying bobbin 21 in which the yarn has been unwound. A plate 40 and a drive unit 100 that drives the yarn feeding bobbin support 80 and the discharge plate 40 are provided.

  First, the drive unit 100 will be described. The drive unit 100 includes a stepping motor 101, a transmission belt 103, a pulley 104, a cam shaft 105, a bearing 92, a swing arm 93, a link member 94, a bearing 42, a swing arm 43, and a link. And a member 44.

  The pulley 104 is fixed to the cam shaft 105, and the pulley 104 is connected to the output shaft of the stepping motor 101 via the transmission belt 103. Although the transmission belt 103 is simply illustrated in FIG. 2, the transmission belt 103 is configured as a toothed timing belt and can transmit the rotation of the output shaft of the stepping motor 101 to the cam shaft 105 without slipping.

  The support portion drive cam 91 and the discharge plate drive cam 41 are fixed to the cam shaft 105 and rotate integrally with the cam shaft 105. A swing arm 93 is disposed on the back side of the support portion drive cam 91, and a swing arm 43 is disposed on the back side of the discharge plate drive cam 41. The bearings 92 and 42 which can rotate are attached to the middle part of the rocking | swiveling arms 93 and 43, and the bearings 92 and 42 can rotate suitably, contacting the outer edge of the support part drive cam 91 and the discharge plate drive cam 41. It is configured as follows.

  The swing arm 93 and the swing plate 81 included in the yarn feeding bobbin support 80 are connected to each other via a rod-shaped link member 94. The swing arm 43 and the transmission arm 45 connected to the discharge plate 40 via the transmission shaft 46 are connected via a rod-like link member 44.

  Next, the yarn feeding bobbin support portion 80 will be described. As shown in FIG. 2 and the like, the yarn feeding bobbin support portion 80 includes a base portion 85, a core member (shaft portion) 52, a first holding member 53a, a second holding member 53b, and a collar member (transmitting portion). 54, a slide member 51, and a swing plate 81 are provided as main components. 4 and 5, a portion of the yarn supplying bobbin support portion 80 above the base portion 85 and the yarn supplying bobbin 21 are shown in cross-sectional views.

  The base portion 85 is attached to an appropriate member so as to be rotatable about the rotation shaft 82. A flat support surface 86 and a cylindrical protrusion (support portion) 87 are formed on the upper portion of the base portion 85. A holding portion 53 is provided at a position above the tip of the protruding portion 87. The holding portion 53 includes a first holding member 53a and a second holding member 53b, and the yarn supplying bobbin 21 can be held by contacting the inner surface of the bobbin tube 21a of the yarn supplying bobbin 21.

  The base portion 85 is supplied in an oblique direction from the bobbin supply device 60 as shown in FIG. 3A by swinging so that the yarn feeding bobbin support portion 80 is slightly tilted to the front side about the rotation shaft 82. The slanting posture is suitable for receiving the yarn feeding bobbin 21 by the yarn feeding bobbin support 80. Further, the base portion 85 swings so as to further tilt the yarn supplying bobbin support portion 80 toward the front side, whereby the yarn supplying bobbin 21 after the unwinding of the yarn 20 is finished as shown in FIG. Inclined posture suitable for discharging to the front side. Further, the base portion 85 swings to the back side, so that the core member 52, the first holding member 53a, and the second holding member 53b are substantially upright as shown in FIGS. 3 (b) and 3 (c). It can also be in posture.

  When the yarn is unwound from the yarn feeding bobbin 21, as shown in FIG. 3C, the core member 52, the first holding member 53a, and the second holding member 53b are controlled to be in the upright posture. The Further, an unillustrated adjustment mechanism including a dial mechanism, a screw mechanism, and the like is provided in the vicinity of the base portion 85. The operator can finely adjust the positions and inclinations of the axial centers of the core member 52 and the holding portion 53 in the upright posture by operating this adjustment mechanism.

  As shown in FIG. 2 and the like, a slide hole is formed in the base portion 85, and a slide member 51 is disposed in the slide hole. The slide hole is elongated in the vertical direction, and the slide member 51 can move along the longitudinal direction of the slide hole.

  The end of the core member 52 is fixed to the upper part of the slide member 51. The core member 52 is configured to protrude upward from the protruding portion 87. The core member 52 has a small diameter part 52a and a large diameter part (pressing part) 52b. The small diameter portion 52 a is formed in an elongated round bar shape, and the lower end thereof is connected to the slide member 51. The large diameter portion 52 b is formed at the upper end portion of the core member 52. Each of the small diameter portion 52a and the large diameter portion 52b has a circular cross section.

  The axis of the core member 52 is oriented to be parallel to the moving direction of the slide member 51. When the core member 52 and the holding portion 53 are in the upright posture (see FIGS. 3B and 3C), the axis of the core member 52 is adjusted by the adjustment mechanism to the reference axis L1 described above. (Adjusted in advance by the operator so as to match the axis of the yarn feeding bobbin 21 when the yarn feeding bobbin 21 can be correctly set at the unwinding reference position determined in relation to the unwinding assisting device 12) . Since the axis of the holding portion 53 in the supported state always coincides with the axis of the core member 52 (details will be described later), the above adjustment work is performed while looking at the core member 52, so that The axis can be accurately matched with the reference axis L1.

  In this configuration, when the slide member 51 moves in a direction parallel to the slide hole as described above, the core member 52 also moves integrally with the slide member 51, so that the length that the core member 52 protrudes from the protrusion 87 is small. Change.

  The core member 52 is inserted into the bobbin pipe 21a of the yarn feeding bobbin 21 when the yarn feeding bobbin 21 is supplied from the bobbin supply device 60 (see FIG. 3A). In this state, the lower end of the bobbin tube 21a is supported at a constant height by support surfaces (height adjustment portions) 86 formed on the front side and the back side of the protruding portion 87.

  The height of the support surface 86 is determined when the core member 52 and the holding portion 53 are in the upright posture (that is, when the support member 86 is in the support state, see FIGS. 3B and 3C). The yarn feeding bobbin 21 placed on the support surface 86 is adjusted in advance so that the height thereof matches the height of the yarn feeding bobbin 21 at the unwinding reference position.

  As shown in FIG. 4, the yarn feeding bobbin support portion 80 includes a first holding member 53a, a collar member 54, and a second holding member 53b in order from the large diameter portion 52b of the core member 52 toward the base portion 85 side. Are arranged side by side in the axial direction of the core member 52. The first holding member 53a, the collar member 54, and the second holding member 53b are all formed in a cylindrical shape, and are attached to the small diameter portion 52a so as to be slidable along the axis of the core member 52. .

  The first holding member 53a is a resin-made member such as silicon, and can be appropriately elastically deformed. FIG. 6 is a partially sectional perspective view showing the shape of the first holding member 53a. As shown in FIG. 6, the first holding member 53a is formed in a cylindrical shape. The inner diameter of the first holding member 53 a is appropriately determined so that a gap does not occur between the inner peripheral surface of the first holding member 53 a and the small diameter portion 52 a of the core member 52. Accordingly, the axial center of the first holding member 53 a coincides with the axial center of the core member 52.

  As shown in FIG. 6, a circular groove is formed in the circumferential direction on the inner circumferential surface of the first holding member 53a at the central portion in the axial direction. By this groove, the central portion in the axial direction of the first holding member 53a is thinned, and the strength is locally weakened.

  The second holding member 53b is configured to use the same material as the first holding member 53a and to have an outer diameter larger than that of the first holding member 53a. Similar to the first holding member 53a, a circular groove is formed on the inner peripheral surface of the second holding member 53b in the circumferential direction. On the other hand, the collar member 54 is formed in a cylindrical shape using a material (for example, metal) that is not easily elastically deformed.

  As shown in FIG. 4, when the first holding member 53a and the second holding member 53b are not elastically deformed, the overall layout is a taper-like layout, so when the yarn feeding bobbin 21 is supplied, The bobbin tube 21 a of the yarn feeding bobbin 21 can be made difficult to be caught by the holding portion 53. Accordingly, the lower end of the bobbin tube 21a can be reliably brought into contact with the support surface 86.

  As shown in FIGS. 2 and 4, a transmission pin 84 is fixed to the slide member 51, and the transmission pin 84 projects to the outside of the base portion 85 through a vertical slide hole formed in the base portion 85. ing. On the other hand, a swing plate 81 is rotatably supported on the base portion 85 via a rotation shaft 82. A long hole 83 is formed in the swing plate 81. A distal end portion of the transmission pin 84 fixed to the slide member 51 is inserted into the long hole 83. Further, the swing plate 81 is connected to the swing arm 93 via a link member 94.

  An urging spring (spring member) 97 that urges the swing plate 81 in the direction of the arrow in FIG. The spring force of the biasing spring 97 acts to pull the core member 52 toward the base portion 85 by pulling down the slide member 51 via the transmission pin 84. Further, the spring force of the urging spring 97 is attached to the swing arm 93 by pulling the swing arm 93 via the swing plate 81 and the link member 94 to bring the swing arm 93 closer to the cam shaft 105 side. The bearing 92 is pressed against the edge of the support drive cam 91.

  Therefore, the urging spring 97 generates a spring force for bringing the support portion drive cam 91 and the bearing 92 into contact with each other. Further, when the support portion drive cam 91 rotates, the state in which the core member 52 is drawn toward the base portion 85 side by the spring force of the biasing spring 97 (FIG. 3C) and the spring force of the biasing spring 97. The state in which the core member 52 is pulled out from the base portion 85 (FIG. 3B) and the state in which the base portion 85 is swung so as to tilt the yarn feeding bobbin support portion 80 toward the front side (FIG. 3). (A) and FIG. 3 (d)) can be switched.

  In this configuration, when the swing plate 81 is rotated by the spring force of the urging spring 97 and the core member 52 slides downward together with the slide member 51, the lower surface of the large diameter portion 52b presses the first holding member 53a downward. . Since the first holding member 53a and the collar member 54 can slide up and down, the pressing force is transmitted to the second holding member 53b. In addition, since the protruding portion 87 supports the second holding member 53b at a certain height, the second holding member 53b is pressed upward from the upper surface of the protruding portion 87 by the repulsive force of the pressing force. Therefore, the first holding member 53a and the second holding member 53b receive a force so as to be sandwiched (compressed) by the pressing force and the repulsive force. Further, since the collar member 54 is slidable up and down, the pressing force and the repulsive force are distributed to the first holding member 53a and the second holding member 53b. As a result, the first holding member 53a and the second holding member 53b are elastically deformed so as to expand outward in the radial direction around the portion where the groove is formed on the inner peripheral surface (see FIG. 5).

  The grooves formed on the inner peripheral surfaces of the first holding member 53a and the second holding member 53b have a uniform shape in the circumferential direction. Therefore, the central portions in the axial center direction of the first holding member 53a and the second holding member 53b are evenly expanded and are in close contact with the inner peripheral surface of the bobbin tube 21a over 360 °. On the other hand, since both axial ends of the first holding member 53a and the second holding member 53b hardly expand in the radial direction, the axial centers of the first holding member 53a and the second holding member 53b are different from the axial center of the core member 52. A consistent state is maintained. Accordingly, the first holding member 53a and the second holding member 53b expand in the radial direction and come into contact with the inner peripheral surface of the bobbin tube 21a, so that the axis of the bobbin tube 21a coincides with the axis of the core member 52. The yarn feeding bobbin 21 is supported.

  As described above, the axis of the core member 52 is adjusted to coincide with the reference axis L1 at the unwinding reference position. Therefore, when the first holding member 53a and the second holding member 53b are expanded, the axis of the yarn feeding bobbin 21 coincides with the reference axis L1. Further, the alignment (height adjustment) of the yarn feeding bobbin 21 in the height direction has already been performed by the support surface 86. Accordingly, the yarn feeding bobbin 21 is correctly arranged at the unwinding reference position.

  In FIG. 5, with respect to the yarn feeding bobbin 21 that has been placed on the support surface 86 with the shaft center slightly shifted as shown in FIG. 4, the shaft is caused by the expansion of the first holding member 53 a and the second holding member 53 b. The state where the alignment is performed and the positioning of the yarn supplying bobbin 21 is completed is shown. 4 corresponds to FIG. 3B, and FIG. 5 corresponds to FIG.

  In the present embodiment, as shown in FIG. 5, each of the first holding member 53a and the second holding member 53b expands in the radial direction, so that the inner peripheral surface of the bobbin tube 21a is positioned at two locations in the axial direction of the bobbin tube 21a. And the yarn feeding bobbin 21 is positioned at the unwinding reference position. Each of the first holding member 53a and the second holding member 53b is in close contact with the inner peripheral surface of the bobbin tube 21a at 360 °. Accordingly, the shaft centering accuracy is good and a strong holding force is obtained, and the shaft center of the yarn feeding bobbin 21 does not deviate unexpectedly even during yarn unwinding.

  As described above, since each member attached to the core member 52 is configured to be slidable in the vertical direction, the pressing force that the large diameter portion 52b acts on the first holding member 53a is the first holding member 53a and It is appropriately distributed and transmitted to the second holding member 53b. Therefore, for example, even when the cylindrical hole of the bobbin tube 21a is formed in a slightly tapered shape and the inner diameter thereof is not uniform, the first holding member 53a and the second holding member 53b are expanded at a corresponding expansion rate. Centering and holding at two locations can be performed without problems.

  In this embodiment, since the slide member 51 and the core member 52 are directly driven by the cam, the expansion strokes of the first holding member 53a and the second holding member 53b are constant. Therefore, for example, when the yarn feeding bobbin 21 with a small inner diameter of the bobbin tube 21a is supplied, excessive force is applied to the inner surface of the bobbin tube 21a by the first holding member 53a and the second holding member 53b, and the bobbin tube 21a is damaged. There is a fear. In this regard, in the present embodiment, the first holding member 53a and the second holding member 53b expand in the radial direction by the elastic force of the biasing spring 97 and contact the inner peripheral surface of the bobbin tube 21a. Therefore, even if the inner diameter of the supplied bobbin tube 21a changes, the expansion strokes of the first holding member 53a and the second holding member 53b change according to the inner diameter of the bobbin tube 21a. Can be held.

  In the present embodiment, the yarn feeding bobbin support portion 80 is inclined and receives the yarn feeding bobbin 21 from the bobbin supply device 60 (FIG. 3A), and the yarn feeding bobbin supporting portion 80 is further upright. After that (FIG. 3B), the shape of the support portion drive cam 91 is appropriately determined so that the swinging plate 81 rotates clockwise in FIG. 4 to draw the core member 52 toward the base portion 85 side. Yes. Therefore, the operations of the mechanisms can be linked as shown in FIGS. 3 (a), 3 (b), and 3 (c).

  Next, a configuration for driving the discharge plate 40 will be described. One end of a transmission shaft 46 that is rotatably supported is fixed to the discharge plate 40, and a transmission arm 45 is fixed to the other end of the transmission shaft 46. A return spring 47 in the form of a torsion coil spring is attached to the transmission arm 45, and urges the transmission arm 45 in the direction of the arrow in FIG.

  With the above configuration, the transmission arm 45 to which the elastic force of the return spring 47 acts pulls the swing arm 43 via the link member 44, so that the bearing 42 of the swing arm 43 is pressed against the discharge plate drive cam 41. Thus, the return spring 47 generates a spring force for bringing the discharge plate driving cam 41 and the bearing 42 into contact with each other.

  When the discharge plate drive cam 41 rotates in this state and the discharge plate drive cam 41 pushes the bearing 42, the swing arm 43 moves in a direction away from the cam shaft 105, and the tip of the swing arm 43 is linked to the link member 44. The end of the transmission arm 45 opposite to the end connected to the transmission shaft 46 is pulled. As a result, the discharge plate 40 can be rotated to the front side. Then, the lower end of the yarn supplying bobbin 21 (bobbin tube 21a) after the unwinding of the yarn 20 can be lifted by the discharge plate 40 and discharged to the front side.

  In this embodiment, after the holding of the yarn supplying bobbin 21 by the holding portion 53 is released, the discharge plate driving is performed so that the discharging plate 40 rotates almost simultaneously with the yarn supplying bobbin support portion 80 being in the inclined posture. The shape of the cam 41 is appropriately determined in relation to the shape of the support portion drive cam 91. Therefore, the operation of each mechanism can be coordinated as shown in FIGS.

  As described above, the winder unit 4 according to the present embodiment includes the bobbin supply device 60, the yarn feeding bobbin support portion 80, and the unwinding assist device 12. The bobbin supply device 60 supplies the yarn supplying bobbin 21. The yarn feeding bobbin support unit 80 supports the yarn feeding bobbin 21 supplied from the bobbin supply device 60. The unwinding assisting device 12 assists the unwinding of the yarn 20 of the yarn supplying bobbin supported by the yarn supplying bobbin support portion 80. The yarn feeding bobbin support portion 80 includes a core member 52, a holding portion 53, and a support surface 86. The core member 52 can be inserted into the bobbin tube 21a, and is directed to the unwinding assisting device 12 at a predetermined position that is defined in advance in a supporting state in which the yarn feeding bobbin 21 is supported. The holding portion 53 is attached to the core member 52 and, in a supported state, holds the yarn feeding bobbin 21 by spreading in a direction perpendicular to the axis of the core member 52 and contacting the inner surface of the bobbin tube 21a. In the support state, the support surface 86 comes into contact with the end of the bobbin tube 21a opposite to the yarn unwinding side at a constant height, so that the unwinding assist device extends from the end of the bobbin tube 21a on the yarn unwinding side. Determine the distance to 12.

  Thereby, the winder unit 4 of the present invention has the yarn feeding bobbin so that it matches the unwinding reference position in a state where both the position and height of the shaft center of the yarn feeding bobbin 21 are aligned with the unwinding assisting device 12. 21 can be supported by the yarn feeding bobbin support portion 80. Therefore, the winder unit 4 can perform the unwinding operation and the winding operation of the yarn 20 while keeping the tension generated in the yarn 20 accompanying the unwinding from the yarn supplying bobbin 21 at a more appropriate strength. Further, the position of the axial center of the yarn supplying bobbin 21 supported by the yarn supplying bobbin support portion 80 is equal to the position of the axial center of the core member 52. Therefore, the operator aligns the axis of the yarn supplying bobbin 21 with respect to the reference axis L1 by observing the position of the core member 52 without actually supporting the yarn supplying bobbin 21 by the yarn supplying bobbin support portion 80. Can do.

  Further, in the winder unit 4 of the present embodiment, the holding portion 53 spreads in a direction orthogonal to the axis of the core member 52 at a plurality of positions (two locations) in the axis direction of the core member 52, and the bobbin tube 21a. It is possible to contact with the inner surface.

  As a result, the bobbin tube 21a can be restrained at a plurality of locations in the axial direction, so that the holding portion 53 can hold the yarn supplying bobbin 21 more stably.

  Further, in the winder unit 4 of the present embodiment, the holding unit 53 includes a first holding member 53 a and a second holding member 53 b that are arranged side by side in the axial direction of the core member 52. The first holding member 53a and the second holding member 53b spread in a direction perpendicular to the axis of the core member 52 and can contact the inner surface of the bobbin tube 21a.

  Thereby, it is possible to hold locations separated from each other with a compact configuration (for example, without using the holding portion 53 that is elongated in the axial direction).

  Further, the winder unit 4 of the present embodiment includes a large diameter portion 52b, a protruding portion 87, and a collar member 54. The large diameter portion 52b transmits the pressing force received by the first holding member 53a to the second holding member 53b. The protruding portion 87 supports the second holding member 53b at a certain height, thereby generating a repulsive force against the pressing force in the second holding member 53b. The collar member 54 uses the first holding member 53a and the second holding member so that both the first holding member 53a and the second holding member 53b are in contact with the inner surface of the bobbin tube 21a. Distribute to member 53b.

  Thereby, the yarn supply bobbin support part 80 with high versatility can be realized with a simple configuration. Moreover, since the 1st holding member 53a and the 2nd holding member 53b can be pressed against the inner surface of the bobbin pipe 21a with good balance, the yarn feeding bobbin 21 can be supported more stably.

  Further, the winder unit 4 of the present embodiment includes an urging spring 97. The large diameter portion 52 b uses the spring force of the biasing spring 97 to expand the holding portion 53 in a direction perpendicular to the axis of the core member 52.

  As a result, the amount of enlargement of the holding portion 53 is automatically adjusted according to the inner diameter of the bobbin tube 21a (because the difference in inner diameter of the bobbin tube 21a can be absorbed by the biasing spring 97 side). The yarn bobbin support portion 80 can be realized.

  In the winder unit 4 of the present embodiment, the material of the first holding member 53a and the second holding member 53b is resin.

  Thereby, even if the 1st holding member 53a and the 2nd holding member 53b are complicated shapes, it can be fabricated easily.

  Further, in the winder unit 4 of the present embodiment, the first holding member 53a and the second holding member 53b are elastic bodies having a cylindrical shape and grooves formed on the inner peripheral surface.

  Accordingly, when the first holding member 53a and the second holding member 53b receive a force in the axial direction of the core member 52, the first holding member 53a and the second holding member 53b spread around the position where the groove is formed. Therefore, the shape of the first holding member 53a and the second holding member 53b during deformation can be made constant. Therefore, the first holding member 53a and the second holding member 53b come into contact with a substantially constant portion of the bobbin tube 21a, so that the bobbin tube 21a can be held more stably.

  Further, in the winder unit 4 of the present embodiment, of the first holding member 53a and the second holding member 53b, the holding member (first holding member 53a) that contacts the inner surface of the bobbin tube 21a on the yarn unwinding side is more preferable. The diameter is smaller than the other holding member (second holding member 53b).

  Thereby, the holding part 53 implement | achieves a taper-like layout as a whole with respect to the direction in which the yarn feeding bobbin 21 is supplied. Thereby, in the winder unit 4, when the yarn supplying bobbin 21 is supplied from the bobbin supplying device 60, the bobbin tube 21a of the yarn supplying bobbin 21 can be reduced from being caught by the holding portion 53. Therefore, the supply mistake of the yarn feeding bobbin 21 can be reduced.

  Further, in the winder unit 4 of the present embodiment, the yarn feeding bobbin support portion 80 includes a flat support surface 86 formed in a direction perpendicular to the axis of the core member 52 in the support state.

  Thereby, compared with the structure etc. which support the bobbin pipe 21a with a grid | lattice-like member, since it can contact the bobbin pipe 21a with a wide contact area, the yarn feeding bobbin 21 can be adjusted to the reference height with high accuracy.

  Further, in the winder unit 4 of the present embodiment, the unwinding assisting device 12 includes a movable member 72 that assists unwinding of the yarn 20 of the yarn feeding bobbin 21. The axis of the core member 52 coincides with the axis of the movable member 72.

  Thereby, the axial center of the movable member 72 and the axial center of the yarn feeding bobbin 21 can be made to correspond. Therefore, the winding operation can be performed while maintaining the tension generated in the yarn to be unwound from the yarn supplying bobbin 21 at a more appropriate strength.

  In the winder unit 4 of the present embodiment, the movable member 72 approaches the end of the bobbin tube 21a opposite to the intended unwinding side as the yarn 20 of the yarn supplying bobbin 21 is unwound.

  Thereby, the tension | tensile_strength which generate | occur | produces in the thread | yarn to be unwound from the yarn feeding bobbin 21 can be kept at more appropriate strength.

  Next, with reference to FIGS. 7 to 10, a modified example of the holding unit 53 of the above embodiment will be described. 7 to 10 are diagrams illustrating another configuration of the holding unit 53. FIG. In the description of this modification, the same or similar members as those in the above-described embodiment may be denoted by the same reference numerals in the drawings, and description thereof may be omitted.

  Unlike the above-described embodiment, the holding unit 531 illustrated in FIG. 7 is configured to hold the yarn feeding bobbin 21 with one holding unit 531. The holding portion 531 is an elongated cylindrical member, and two grooves are formed in the axial direction of the core member 52 as shown in FIG.

  With this configuration, the large-diameter portion 52b moves downward from the state shown in FIG. 7A, so that two locations spread toward the inner peripheral surface of the bobbin tube 21a as shown in FIG. 7B. Thereby, the yarn feeding bobbin 21 can be stably held by the single holding portion 531.

  As shown in FIG. 8B, the holding portion 532 shown in FIG. 8 includes a first holding member 532a and a second holding member 532b. The first holding member 532a and the second holding member 532b have the same shape, and as shown in FIG. 8A, a groove (concave portion) wider than that in the above-described embodiment (FIG. 6) is formed. ing.

  With this configuration, when the first holding member 532a and the second holding member 532b support the bobbin tube 21a, the bobbin tube 21a has a certain length in contact with the bobbin tube 21a. The tube 21a can be held. Thereby, the yarn feeding bobbin 21 can be stably held.

  The holding part 533 shown in FIG. 9 is comprised from the 1st holding member 533a and the 2nd holding member 533b, as shown in FIG.9 (b). In the holding portion 533, the first holding member 533a is configured to have a smaller diameter than the second holding member 533b, as in the above embodiment. Further, in the first holding member 533a and the second holding member 533b, as shown in FIGS. 9A and 9B, circumferential protrusions are formed on the outer peripheral surfaces thereof.

  Even when the protrusions are formed on the outer peripheral surface in this manner, the holding portion 533 can be widened around the protrusion portion as in the above embodiment.

  The holding portion 534 shown in FIG. 10 is an elongated cylindrical member, and a plurality of (four in the example of FIG. 10) elongated cuts are formed as shown in FIG. This incision is elongated in the direction along the axis of the core member 52 and is formed so as to penetrate in the radial direction. Further, the four cuts are arranged at equal intervals in the circumferential direction.

  As shown in FIG. 10 (b), the holding portion 534 having this configuration is expanded in the radial direction by moving the large diameter portion 52b downward. In the configuration in which the slits penetrating in the radial direction are long, the holding portion 534 can be greatly expanded, and therefore, the bobbin tube 21a having various diameters can be appropriately brought into contact.

  In addition, the structure of a holding | maintenance part is not restricted to the structure shown above, The member of an appropriate shape can be used if it is the structure which spreads so that the bobbin pipe | tube 21a may be contacted. Further, the arrangement and the number thereof are not limited to those shown above.

  The preferred embodiment of the present invention has been described above. However, the above configuration can be changed as follows, for example.

  Instead of pressing the holding portion 53 by lowering the large diameter portion 52b of the core member 52, the holding portion 53 may be pressed by pushing up the protruding portion 87. However, the configuration in which the core member 52 is pulled down is advantageous in that the yarn feeding bobbin 21 can be pulled down via the holding portion 53 and the lower end of the bobbin tube 21a can be reliably brought into contact with the support surface 86.

  Further, for example, in the configuration of FIG. 4, the core member 52 may be lowered and the protrusion 87 may be pushed up simultaneously. In this case, the collar member 54 can be configured not to slide.

  As a configuration for driving the core member 52, for example, a cylinder may be used instead of the biasing spring 97.

  Another member may be disposed between the large-diameter portion 52b of the core member 52 and the holding portion 53, and the large-diameter portion 52b may indirectly press the holding portion 53.

  It can also be set as the structure which can adjust the height of the support surface 86. FIG. As a method for adjusting the height, for example, it is conceivable to use spacers having different thicknesses.

  In the above-described embodiment and modification, the tubular movable member 72 is used in the unwinding assisting device 12, but instead of this, a linear guide member formed by a plate member having a guide hole, a wire, or the like, Various shapes of the movable member 72 such as a polygonal column member can be used.

  In the above embodiment and the modification, the tilted state of the base portion 85 and the protruding state of the core member 52 with respect to the base portion 85 are configured to be switched by the rotation of the support portion drive cam 91 that is a common switching mechanism. The inclined state of the portion 85 and the protruding state of the core member 52 may be switched by separate switching mechanisms.

4 Winder unit (winding unit)
12 Unwinding assist device 51 Slide member 52 Core member (shaft)
52b Large diameter part (pressing part)
53 Holding part 53a First holding member 53b Second holding member 54 Color member (transmission part)
60 Bobbin supply device (yarn supply bobbin supply unit)
72 Movable member (unrolling cylinder member)
80 Yarn supply bobbin support part 81 Swing plate 85 Base part 86 Support surface (height adjustment part)
87 Protruding part (supporting part)
97 Biasing spring (spring member)

Claims (13)

A yarn supplying bobbin supplying unit for supplying a yarn supplying bobbin formed by winding a yarn around the bobbin tube;
A yarn feeding bobbin support part for supporting the yarn feeding bobbin supplied from the yarn feeding bobbin supply part;
An unwinding assisting device for assisting unwinding of the yarn of the yarn supplying bobbin supported by the yarn supplying bobbin support part;
With
The yarn feeding bobbin support part is
A shaft portion that can be inserted into the bobbin tube and that is directed to the unwinding assisting device at a pre-defined position in a supporting state for supporting the yarn feeding bobbin;
A holding part that is attached to the shaft part and holds the yarn feeding bobbin by being in contact with the inner surface of the bobbin pipe spreading in a direction perpendicular to the axis of the shaft part in the support state;
In the supporting state, a distance from the end of the bobbin tube on the yarn unwinding side to the unwinding assisting device by contacting the end of the bobbin tube on the side opposite to the yarn unwinding side at a certain height. The height adjustment part to determine,
A winding unit comprising: The winding unit according to claim 1,
The winding unit is characterized in that, at a plurality of positions in the axial direction of the shaft portion, the holding portion spreads in a direction perpendicular to the axis of the shaft portion and can contact the inner surface of the bobbin tube. The winding unit according to claim 2,
The holding part includes a first holding member and a second holding member arranged side by side in the axial direction of the shaft part,
The winding unit, wherein the first holding member and the second holding member spread in a direction perpendicular to the axis of the shaft portion and can contact the inner surface of the bobbin tube. The winding unit according to claim 3,
A pressing portion for pressing the first holding member;
A transmission portion for transmitting the pressing force received by the first holding member to the second holding member;
A support portion that causes the second holding member to generate a repulsive force against the pressing force by supporting the second holding member at a certain height;
With
The transmitting portion transmits the pressing force and the repulsive force so that both the first holding member and the second holding member are in contact with the inner surface of the bobbin tube. A winding unit that distributes to a holding member. The winding unit according to claim 4,
The transmission portion is disposed between the first holding member and the second holding member, and is movable in the axial direction of the shaft portion,
The first holding member and the second holding member spread in a direction orthogonal to the axial direction by being pressed in the axial direction of the shaft portion by the movement of the transmission portion. unit. The winding unit according to claim 4 or 5,
A spring member,
The said pressing part uses the spring force of the said spring member, and expands the said holding | maintenance part in the direction orthogonal to the axial center of the said axial part, The winding unit characterized by the above-mentioned. The winding unit according to any one of claims 3 to 6,
A winding unit, wherein at least one of the first holding member and the second holding member is a resin. A winding unit according to any one of claims 3 to 7,
At least one of the first holding member and the second holding member is an elastic body having a cylindrical shape and having a groove formed on an inner peripheral surface thereof. The winding unit according to any one of claims 3 to 8,
At least one of the first holding member and the second holding member is an elastic body in which a plurality of cuts are formed in the axial direction of the shaft portion. The winding unit according to any one of claims 3 to 9,
Of the first holding member and the second holding member, the holding member contacting the inner surface of the bobbin tube on the yarn unwinding side has a smaller diameter than the other holding member. . The winding unit according to any one of claims 1 to 10,
The winding unit according to claim 1, wherein the height adjusting portion is a flat support surface formed in a direction orthogonal to the axis of the shaft portion in the support state. The winding unit according to any one of claims 1 to 11,
The unwinding assisting device includes a unwinding cylinder member that is a cylinder member that assists unwinding of the yarn of the yarn feeding bobbin,
The winding unit according to claim 1, wherein an axial center of the shaft portion in the support state coincides with an axial center of the unwinding cylinder member. The winding unit according to claim 12,
The winding unit, wherein the unwinding cylinder member approaches an end of the bobbin tube opposite to a yarn unwinding side as the yarn of the yarn supplying bobbin is unwound.

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