JP2011241031A - Take-up unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a take-up unit which precisely matches a position of an end part on the reliability side of a thread feeding bobbin to a target position irrespective of a diameter and shape of the thread feeding bobbin, thereby executing good take-up operations.SOLUTION: A winder unit (take-up unit) includes: a bobbin holding part; a chase part detecting sensor; a drive part; and a stepping motor control part. The bobbin holding part holds the thread feeding bobbin. The chase part detecting sensor detects the end part on the reliability side of the thread feeding bobbin held by the bobbin holding part. The drive part drives the bobbin holding part to adjust the position of the end part on the reliability side of the thread feeding bobbin. The stepping motor control part controls the drive part to match the position of the end part on the reliability side of the thread feeding bobbin to a preset target position based on a detection result of the chase part detecting sensor.

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 A yarn winding machine is known in which a number of winding units for winding a yarn unwound from a yarn supplying bobbin are wound around a winding bobbin to form a package. In order to adjust the tension by guiding the yarn unwound from this yarn feeding bobbin and to obtain a good winding package, the positional relationship of the yarn guide arranged immediately above the yarn feeding bobbin of the yarn feeding bobbin is constant. It is preferable that As this yarn guide, there is known an unwinding assisting device that adjusts a balloon formed at a unwinding position where the yarn of the yarn supplying bobbin is unwound by a cylindrical balloon regulating portion.

  However, since the yarn feeding bobbins having various shapes and inner diameters are supplied to the winding unit depending on the yarn type and the like, the balloon regulating unit and the yarn feeding bobbin The positional relationship will change. If this positional relationship changes, the unwinding tension when unwinding from the yarn supplying bobbin becomes non-uniform depending on the circumferential position of the yarn supplying bobbin. Therefore, every time the type of the yarn feeding bobbin supplied to the winding unit is changed, the operator sets the yarn feeding bobbin so that the axis of the yarn feeding bobbin coincides with the axis of the balloon regulating portion. It was necessary to adjust the position.

  On the other hand, in Patent Documents 1 and 2, the inner periphery of the yarn feeding bobbin is supported at a plurality of fulcrums by a plurality of claw members (tightening claw group, gripping piece), so that different core tube inner diameters can be obtained. A bobbin holding peg that can perform a winding operation without changing the positional relationship between the bobbin and the winding device is described. 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.

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

  However, in recent years, the types and shapes of yarn feeding bobbins supplied to the winding unit have also diversified along with the diversification of the types of yarn and the machines that wind up the yarn feeding bobbins in the pre-process of the yarn winding machine. Among them, when a yarn feeding bobbin with a complicated shape such as irregularities inside the bobbin is supplied to the winding unit, the tip of the claw member is caught by the irregularity inside the yarn feeding bobbin, and the yarn feeding bobbin becomes a claw member However, the problem of being held in an oblique posture occurs.

  However, the winding unit provided with the bobbin holding pegs described in Patent Documents 1 and 2 is configured to hold the yarn supplying bobbin and is not configured to confirm the position of the supplied yarn supplying bobbin. Therefore, even if the shaft center of the yarn supplying bobbin is held out of alignment with the axis of the balloon restricting portion on the unwinding side, the winding operation may be advanced without confirming it.

  In addition, in a winding unit provided with a balloon restricting portion that lifts and lowers the yarn supply bobbin to restrict the balloon, if the yarn restricting bobbin and the balloon restricting portion are misaligned, the balloon restricting portion is supplied when the balloon restricting portion is lowered. It will be in contact with the thread bobbin and cause a defective package such as twilling.

  The present invention has been made in view of the above circumstances, and its main purpose is to accurately set the position of the unwinding side end of the yarn feeding bobbin with respect to the target position regardless of the diameter and shape of the yarn feeding bobbin. By combining, it is providing the winding unit which can perform favorable winding operation.

Means and effects for solving the problems

  According to an aspect of the present invention, there is provided a winding unit having the following configuration that forms a package by winding a yarn unwound from a yarn supplying bobbin. That is, the winding unit includes a bobbin holding mechanism, a position detection unit, a drive unit, and a control unit. The bobbin holding mechanism holds a yarn feeding bobbin. The position detection unit detects an unwinding side end of the yarn feeding bobbin held by the bobbin holding mechanism. The drive unit drives the bobbin holding mechanism so as to adjust the position of the unwinding side end of the yarn feeding bobbin. The control unit controls the drive unit to match the position of the yarn feeding bobbin unwinding side end with a preset target position based on the detection result of the position detection unit.

  Thus, in the winding unit of the present invention, the winding operation for forming the package from the yarn unwound from the yarn supplying bobbin is started after the position of the unwinding side end portion of the yarn supplying bobbin is set to the target position. be able to. As a result, for example, in the winding unit of the present invention, since the position of the unwinding side end of the yarn feeding bobbin can be adjusted to a position where the winding operation can be performed satisfactorily, more appropriate winding can be performed. It is possible to carry out work. In the winding unit of the present invention, the position of the unwinding side end of the yarn feeding bobbin with respect to the target position can be automatically adjusted, so the position of the unwinding side end of the yarn feeding bobbin is manually adjusted. Compared to the configuration, the burden on the operator can be reduced.

  The winding unit preferably has the following configuration. That is, the winding unit includes an unwinding assisting device that assists in unwinding the yarn of the yarn supplying bobbin. The preset target position is the unwinding reference position of the unwinding assisting device. The control unit controls the drive unit so that the position of the unwinding side end of the yarn feeding bobbin matches the unwinding reference position of the unwinding assisting device.

  Thereby, in the winding unit of the present invention, the position of the unwinding side end of the yarn feeding bobbin can be matched with the unwinding reference position of the unwinding assisting device. Thereby, for example, in the winding unit of the present invention, the function of the unwinding auxiliary device can be properly exhibited, so that the winding operation is performed while maintaining the tension of the yarn unwound from the yarn supplying bobbin properly. Thus, the work efficiency of the winding work can be improved.

  The winding unit preferably has the following configuration. That is, the winding unit includes a storage unit that stores an adjustment distance for aligning the unwinding side end of the yarn supplying bobbin with the target position. The control unit controls the driving unit so that the unwinding side end of the yarn supplying bobbin passes through the detection region of the position detecting unit, and the position detecting unit is the unwinding side end of the yarn supplying bobbin. The drive unit is controlled so that the position of the unwinding side end of the yarn feeding bobbin is moved by the adjustment distance stored in the storage unit from the position where is detected.

  Thereby, in the winding unit of the present invention, the unwinding side end of the yarn feeding bobbin can be moved to the target position based on the adjustment distance. Thereby, in the winding unit of the present invention, the position of the unwinding side end of the yarn feeding bobbin can be more accurately adjusted to the target position.

  The winding unit preferably has the following configuration. That is, the storage unit stores a plurality of adjustment distances corresponding to the yarn feeding bobbin type. In addition, a setting unit that sets one adjustment distance among the plurality of adjustment distances stored in the storage unit is provided. And the said drive part is controlled based on the adjustment distance set by the said setting part.

  Thereby, in the winding unit of the present invention, the position of the unwinding side end of the yarn supplying bobbin can be adjusted to the target position based on a plurality of adjustment distances corresponding to the type of yarn supplying bobbin. Thus, for example, the operator can set the type of the yarn feeding bobbin for performing the winding operation to the winding unit, so that the position of the unwinding side end of the yarn feeding bobbin can be more precisely matched with the target position. Can do.

  The winding unit preferably has the following configuration. That is, the winding unit includes a storage unit and a calculation unit. The storage unit stores an adjustment distance for aligning the unwinding side end of the yarn feeding bobbin with the target position. The calculation unit includes a first position where the unwinding side end of the yarn supplying bobbin enters the detection region of the position detecting unit, and the unwinding side end of the yarn supplying bobbin is detected by the position detecting unit. A second position that is a position that is out of the region and a third position that is an intermediate position between the first position and the second position are calculated, and stored in the third position and the storage unit. A final adjustment distance is calculated from the adjusted distance. The control unit controls the drive unit to move the position of the unwinding side end of the yarn feeding bobbin by the final adjustment distance calculated by the calculation unit from the second position.

  Thereby, in the winding unit of the present invention, the diameter of the yarn supplying bobbin is calculated by calculating the first position and the second position, and the axis of the yarn supplying bobbin is calculated by calculating the third position. Can be calculated. Thereby, in the winding unit of the present invention, the position of the shaft core at the unwinding side end of the yarn feeding bobbin can be adjusted to the target position. Therefore, in the winding unit of the present invention, the position of the unwinding side end portion of the yarn feeding bobbin can be adjusted to a more appropriate position for performing the winding operation.

  The winding unit preferably has the following configuration. That is, the position detection unit in the winding unit is provided at the target position. The winding unit includes a control unit and a calculation unit. The control unit drives the drive unit such that the unwinding side end of the yarn feeding bobbin passes through the detection region of the position detection unit. The calculation unit includes a first position where the unwinding side end of the yarn supplying bobbin enters the detection region of the position detecting unit, and the unwinding side end of the yarn supplying bobbin is detected by the position detecting unit. A second position that is a position out of the region and a third position that is an intermediate position between the first position and the second position are calculated. Further, the control unit moves the drive unit so as to move the position of the unwinding side end of the yarn feeding bobbin from the second position to the third position based on the calculation result of the calculation unit. Control.

  Thereby, in the winding unit of the present invention, the position detection unit provided at the target position calculates the position of the axis of the yarn feeding bobbin, so that the unwinding side end of the yarn feeding bobbin can be simply and accurately. Can be adjusted to the target position.

  The winding unit preferably has the following configuration. That is, the unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change in the chase portion that is the yarn layer end portion of the yarn supplying bobbin as the winding operation proceeds. To do. The position detection unit is a chase unit detection unit capable of detecting the chase unit.

  Thereby, in the winding unit of this invention, the detection part which detects the unwinding side edge part of a yarn feeding bobbin, and the detection part which detects a chase part can be comprised in common. Thereby, in the winding unit of the present invention, the number of parts can be reduced. Therefore, the winding unit of the present invention can be configured compactly and can be manufactured at low cost.

  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 in unwinding the yarn of the yarn supplying bobbin by moving in the vertical direction. The unwinding reference position is located on an extension line at the center of the unwinding cylinder member.

  Thereby, in the winding unit of the present invention, the unwinding side end of the yarn feeding bobbin can be aligned with the extension line of the shaft core of the unwinding cylinder member of the unwinding assisting device. The winding operation can be carried out while maintaining the tension of the yarn obtained more appropriately.

  In the winding unit, the driving unit includes a stepping motor having an origin sensor whose origin is a point where the position of the unwinding side end of the yarn feeding bobbin is located on the extension line of the center of the unwinding cylinder member. It is preferable to provide.

  The winding unit of the present invention adjusts the position of the unwinding side end of the yarn feeding bobbin to the target position using the number of steps of the motor, so that the position of the unwinding side end of the yarn feeding bobbin is simpler and finer. Can be adjusted.

  The winding unit preferably has the following configuration. That is, the winding unit includes a yarn crimping prevention device that prevents the yarn unwound from the yarn feeding bobbin from coming into contact with the yarn feeding bobbin. The controller controls the yarn shrinkage prevention device to contact the yarn feeding bobbin before the position of the unwinding side end portion of the yarn feeding bobbin is adjusted to the target position.

  The winding unit of the present invention can bring the yarn of the yarn feeding bobbin into contact with the yarn crimping prevention device before the position of the unwinding side end of the yarn feeding bobbin is adjusted to the target position. As a result, for example, the winding unit of the present invention is capable of unwinding the yarn by unwinding the yarn of the yarn feeding bobbin during the operation of adjusting the position of the unwinding side end of the yarn feeding bobbin to the target position. Occurrence can be prevented.

  The winding unit preferably has the following configuration. That is, the bobbin holding mechanism includes a defining member and a holding member. The defining member defines the posture of the yarn feeding bobbin. The holding member holds the yarn feeding bobbin on the defining member by changing a posture with respect to the defining member. And the direction which adjusts the position of the unwinding side edge part of the said yarn feeding bobbin is a direction which changes the attitude | position of the said holding member with respect to the said definition member.

  In the winding unit of the present invention, when the bobbin holding mechanism includes the defining member and the holding member, the position of the unwinding side end of the yarn feeding bobbin is changed from the target position to the defining member. Even if the posture is shifted in the direction in which the posture is changed, the position of the unwinding side end of the yarn feeding bobbin can be adjusted to the target position.

1 is an external perspective view showing an overall configuration of an automatic winder according to an embodiment of the present invention. The typical side view of a winder unit. The block diagram which shows the main structures of a winder unit. The expansion perspective view which shows the structure of a unwinding assistance apparatus. The perspective view which shows the structure of a bobbin set part. The side view which shows the shape of the cam with which a power transmission part is provided. The side view which shows the structure of an adjustment part when a main core member exists in a receiving attitude | position. The side view which shows the structure of an adjustment part when a main core member exists in an unwinding attitude | position. The side view which shows the structure of the adjustment part when a main core member exists in a discharge attitude | position. The flowchart which shows the process which a winder unit performs when thread breakage etc. generate | occur | produce. The side view which shows the front half part of a mode that the position of the unwinding side edge part of a yarn feeding bobbin is adjusted. The side view which shows the latter half part of a mode that the position of the unwinding side edge part of a yarn feeding bobbin is adjusted. The block diagram which shows the example of a change of an apparatus control apparatus. The flowchart which shows the process which adjusts the position of the unwinding side edge part of a yarn feeding bobbin. The block diagram which shows the main structures of the winder unit which concerns on a 1st modification and a 2nd modification. The flowchart which shows the process which adjusts the position of the unwinding side edge part of the yarn feeding bobbin based on a 1st modification. The side view which shows the front half part of a mode that the position of the unwinding side edge part of a yarn feeding bobbin based on a 1st modification is adjusted. The side view which shows the latter half part of a mode that the position of the unwinding side edge part of the yarn feeding bobbin based on the 1st modification is adjusted. The flowchart which shows the process which adjusts the position of the unwinding side edge part of the yarn feeding bobbin based on a 2nd modification. The side view which shows the front half part of a mode that the position of the unwinding side edge part of the yarn feeding bobbin based on a 2nd modification is adjusted. The side view which shows the latter half part of a mode that the position of the unwinding side edge part of a yarn feeding bobbin based on a 2nd modification is adjusted.

  Next, embodiments of the present invention will be described with reference to the drawings. First, the outline | summary of the automatic winder 1 of this embodiment is demonstrated with reference to FIG. FIG. 1 is an external perspective view of an automatic winder 1 according to an embodiment of the present invention. 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”.

  An automatic winder (yarn winding machine) 1 according to this embodiment includes a plurality of winder units (winding units) 4 arranged side by side, and a machine base control device arranged at one end of the plurality of winder units 4 in the arranged direction. 7.

  Each winder unit 4 includes a unit frame 5 provided on the left and right sides in a front view, and a winding unit body 6 provided on the side of the unit frame 5. Inside the unit frame 5, a unit controller 50 (see FIG. 3) for controlling each part of the winding unit body 6 is arranged. This unit control unit 50 includes a determination unit 51, a storage unit 52, and a calculation unit 53. The detailed functions of each component provided in the unit controller 50 will be described later. The unit frame 5 also includes a unit input unit (setting unit) 18 that can input settings of the winding unit body 6 and the like, and a unit display unit 19 that can display the status of the winding operation. The unit input unit 18 can be configured as a key or a button, for example.

  Since the machine control device 7 is configured to be communicable with the unit controller 50, the machine control device 7 can centrally manage the operations of the plurality of winder units 4. In addition, the machine base control device 7 is a machine base input unit (for inputting the type of the yarn feeding bobbin 21 used for the winding operation of each winder unit 4) for each winder unit 4. A setting unit) 8 and a machine base display unit 9 capable of displaying a winding work status of each winder unit 4 and the like.

  Next, the winder unit 4 will be described in detail with reference to FIGS. FIG. 2 is a schematic side view of the winder unit 4. FIG. 3 is a block diagram showing a main configuration of the winder unit 4. 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. Hereinafter, each part of the winder unit 4 will be described.

  As shown in FIGS. 1 and 2, a bobbin supply device 60 for an operator to supply the yarn feeding bobbin 21 is disposed on the front side of the winder unit 4. The bobbin supply device 60 is installed below the magazine can 62, a magazine holder 61 that extends from the lower part of the winder unit 4 upward in the front direction, a magazine can 62 that is attached to the tip of the magazine holder 61, and the magazine can 62. The yarn feeding bobbin guide portion 64 and the opening / closing portion 68 are provided.

  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. Further, the magazine can 62 is configured to be intermittently rotationally driven by a motor (not shown). The predetermined yarn feeding bobbin 21 can be dropped obliquely downward by intermittent driving of the magazine can 62 and opening / closing operation of a control valve (not shown) provided in the magazine can 62.

  The yarn feeding bobbin guide unit 64 is configured to slide the yarn feeding bobbin 21 dropped from the magazine can 62 obliquely and guide it to the bobbin holding unit (bobbin holding mechanism) 110 of the bobbin setting unit 10. As shown in FIG. 5, the bobbin setting unit 10 includes a bobbin holding unit 110, a jump plate 40 for discharging the yarn feeding bobbin 21 (core pipe 21 a) that has been unwound, and a bobbin holding unit. Drive part 200 which operates part 110 and jump board 40. Details of the bobbin setting unit 10 will be described later.

  The opening / closing part 68 includes a pair of opening / closing members 68a and 68b that can swing between a front side (front side in FIG. 2) and a back side (back side in FIG. 2). 68b can be switched between a closed state (the state shown in FIG. 2) and an open state. When the opening / closing part 68 is closed, the inner surface of the opening / closing part 68 constitutes a part of the yarn feeding bobbin guide part 64. That is, the inner surface of the opening / closing portion 68 contacts the yarn feeding bobbin 21 falling from the magazine can 62 and guides the yarn feeding bobbin 21 to the bobbin setting portion 10 obliquely below. On the other hand, in a state where the opening / closing part 68 is opened, the yarn feeding bobbin 21 in a state where the yarn that has been wound up is not wound can be discharged to the front side. Since the conveyor 3 (see FIG. 1) is disposed on the front side of the opening / closing unit 68, the automatic winder 1 transports the yarn feeding bobbin 21 discharged from the opening / closing unit 68 to the conveyor 3 by the conveyor 3. It can be conveyed to a yarn feeding bobbin recovery box (not shown) arranged at the end of the direction.

  Further, the bobbin holding part 110 is configured to be swingable to the front side and the back side when the stepping motor 100 shown in FIGS. 2 and 3 is driven. The stepping motor 100 is controlled by a stepping motor control unit (control unit) 102 as shown in FIG. Further, an origin sensor 101 is attached to an appropriate position of the bobbin setting unit 10, and the rotation control of the stepping motor 100 is performed based on the rotation state of the stepping motor 100 detected by the origin sensor 101. The location and members for attaching the origin sensor 101 will be described later.

  Further, the bobbin holding part 110 can receive the yarn feeding bobbin 21 guided by the yarn feeding bobbin guiding part 64 by swinging from the back side to the front side. And the bobbin holding part 110 can make the received yarn feeding bobbin 21 substantially upright by swinging to the back side. The details of the mechanism for swinging the bobbin holding unit 110 by driving the stepping motor 100 and the control performed by the stepping motor control unit 102 will be described later.

  The yarn feeding bobbin 21 set on the bobbin holding unit 110 of the bobbin setting unit 10 as described above is wound up by the winding unit 16. As shown in FIG. 2, 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 is equipped with.

  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 yarn curb generation preventing device 11, the unwinding assisting device 12, and the bobbin set unit 10 side in order from the traverse drum 24 side, A tension applying device 13, a yarn joining device 14, and a clearer (yarn quality measuring device) 15 are arranged.

  As shown in FIG. 4, the unwinding assisting device 12 includes a fixed member 71, a movable member (unwinding cylinder member) 72, an elevating member 73, and a chase detection sensor (position detection unit, chase detection unit) 74. And comprising. FIG. 4 is an enlarged perspective view showing the configuration of the unwinding assisting device 12.

  The fixing member 71 is fixed to the unit frame 5 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. In the following description, the central axis of the movable member 72 configured in a cylindrical shape and a line obtained by extending the central axis are referred to as a virtual line L1.

  The elevating member 73 is formed integrally with the movable member 72. Since the elevating member 73 is configured to be movable in the vertical direction, the movable member 72 can be moved in the vertical direction. The elevating member 73 includes a chase portion detection sensor 74 for detecting the chase portion 21b (see FIG. 4) of the yarn feeding bobbin 21. The chase portion 21b is a yarn layer end portion of the yarn feeding bobbin 21 as the winding operation proceeds. Further, the chase portion detection sensor 74 is configured as a transmissive photosensor having a light projecting portion 74a and a light receiving portion 74b. As shown in FIG. 3, the detection signal detected by the chase unit detection sensor 74 is input to the unit control unit 50.

  With this configuration, the movable member 72 can be positioned at a predetermined distance from the chase portion 21 b by operating the elevating member 73 based on the detection signal of the chase portion detection sensor 74. Then, as the yarn feeding bobbin 21 is unwound and the position of the chase portion 21b is lowered, the elevating member 73 is lowered so that the distance between the chase portion 21b and the movable member 72 can be always constant. Thereby, when the yarn feeding bobbin 21 is unwound, the balloon generated at the position where the yarn is dissociated from the chase portion 21b can be appropriately regulated, and the tension of the yarn unwound from the yarn feeding bobbin 21 is kept constant. Winding work can be performed while keeping In order to perform such an appropriate unwinding assisting operation, it is necessary to align the unwinding side end of the yarn feeding bobbin 21 with the position (unwinding reference position) on the virtual line L1. The details of the control for adjusting the position of the unwinding side end of the yarn feeding bobbin 21 will be described later.

  Further, on the back side of the unwinding assisting device 12, a yarn crimping prevention device 11 for preventing the yarn from being crimped is disposed. Here, the yarn curling is one of the problems that occur in the yarn, and is a state in which the yarn is curled and entangled in a spiral shape. The yarn crimping prevention device 11 includes a brush arm 11a and a brush portion 11b formed at the tip of the brush arm 11a. The brush arm 11 a is configured to be rotatable, and the brush portion 11 b can be brought into contact with the upper end portion of the yarn feeding bobbin 21 by being rotated. Thereby, an appropriate tension can be applied to the yarn 20 at the time of the yarn splicing operation or the like, and the occurrence of yarn crimping can be prevented.

  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.

  On the lower side and upper side of the yarn joining device 14, a lower yarn guide pipe 25 that catches and guides the lower yarn on the yarn feeding bobbin 21 side, and an upper yarn guide pipe 26 that catches and guides the upper yarn on the package 29 side. And are provided. 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 21, the suction port 32 of the lower thread guide pipe 25 rotates downward to suck and catch the lower thread, and then rotates upward about the shaft 33. As a result, the lower thread is guided to the yarn joining device 14. At almost 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 be unwound from the package 29. The thread is captured by the suction mouse 34. Subsequently, the winder unit 4 guides the upper thread to the yarn joining device 14 by rotating the upper thread guide pipe 26 downward about the shaft 35. In the yarn joining device 14, the yarn joining of the lower yarn and the upper yarn is performed.

  Further, a notification lamp 56 is arranged on the unit frame 5 as shown in FIGS. The notification lamp 56 is connected to the unit controller 50 as shown in FIG. 3, and can notify the operator of an abnormality occurring in each part of the winding unit body 6. The notification lamp 56 is configured to notify the operator of the occurrence of an abnormality using light, but may be configured to notify the operator with a buzzer or the like instead of this configuration.

  With the above configuration, each winder unit 4 of the automatic winder 1 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. 5 is a perspective view showing the configuration of the bobbin setting unit 10. FIG. 6 is a side view showing the shape of the cam provided in the power transmission unit 120. FIG. 7 is a side view showing the configuration of the power transmission unit 120 when the main core member 80 is in the receiving posture. FIG. 8 is a side view showing the configuration of the power transmission unit 120 when the main core member 80 is in the unwinding posture. FIG. 9 is a side view showing the configuration of the power transmission unit 120 when the main core member 80 is in the discharging posture.

  As described above, the bobbin setting unit 10 discharges the bobbin holding unit 110 for holding the supplied yarn supplying bobbin 21 and the yarn supplying bobbin 21 (core tube 21a) after the yarn has been unwound. A jump plate 40 and a drive unit 200 that operates the bobbin holding unit 110 and the jump plate 40 are provided. The drive unit 200 includes a stepping motor 100 and a power transmission unit 120 that transmits the power of the stepping motor 100 to the spring plate 40 and the bobbin holding unit 110.

  The bobbin holding portion 110 can swing as shown in FIGS. 7 to 9 to change the position of the unwinding side end portion of the yarn feeding bobbin 21. Further, the bobbin holding part 110 includes a main core member (regulating member) 80 and an auxiliary core member (holding member) 90. As shown in FIG. 7, the main core member 80 and the auxiliary core member 90 are closed when the yarn feeding bobbin 21 is supplied, and enter the inside of the core tube 21a. In this state, the auxiliary core member 90 swings in a direction away from the main core member 80, whereby the yarn feeding bobbin 21 can be held (see FIG. 8). Further, in the state where the holding of the yarn feeding bobbin 21 by the bobbin holding portion 110 is released, the spring plate 40 is swung to push out the bottom portion of the core tube 21a and remove it from the main core member 80 and the auxiliary core member 90. The yarn feeding bobbin 21 can be discharged (see FIG. 9).

  Next, the power transmission unit 120 will be described. The power transmission unit 120 is configured to oscillate the main core member 80, and includes a main core member drive cam 81, a bearing 82, a swing arm 83, a positioning arm 84 a, a contact arm 84 b, and a transmission shaft 85. And a pressing spring 86. The power transmission unit 120 includes a transmission belt 103, a pulley 104, and a cam shaft 105 as a configuration for transmitting the power of the stepping motor 100 to the main core member drive cam 81 and the like.

  The pulley 104 is fixed to the cam shaft 105, and the pulley 104 is connected to the output shaft of the stepping motor 100 via the transmission belt 103. Although the transmission belt 103 is simply illustrated in FIG. 5, the transmission belt 103 is configured as a toothed timing belt and can transmit the rotation of the output shaft of the stepping motor 100 to the cam shaft 105 without slipping.

  An origin sensor 101 (not shown in FIG. 5) is attached to the pulley 104. The origin sensor 101 sends a detection signal when the pulley 104 or the camshaft 105 is in a predetermined rotational phase. It is configured. The rotation state when the origin sensor 101 transmits a detection signal is the origin of the stepping motor 100, and the rotation control of the stepping motor 100 is performed based on this origin.

  The main core member drive cam 81 is fixed to the cam shaft 105 and rotates integrally with the cam shaft 105. A swing arm 83 is disposed on the back side of the main core member drive cam 81, and a rotatable bearing 82 is attached to a middle portion of the swing arm 83. The bearing 82 is configured to be able to rotate appropriately while contacting the outer peripheral surface of the main core member drive cam 81.

  The tip of the swing arm 83 is connected to the lower end of a positioning arm 84a supported so as to be swingable at an appropriate position of the power transmission unit 120 via a bar-shaped link. A rotatable rotating member 87 is supported on the upper end portion of the positioning arm 84a.

  A contact arm 84b is disposed on the front side of the positioning arm 84a. The tip of the contact arm 84b is configured to be able to contact the rotating member 87 attached to the positioning arm 84a. One end of the transmission shaft 85 is fixed to the base portion of the contact arm 84 b, and the other end of the transmission shaft 85 is fixed to the main core member 80. That is, the transmission shaft 85 and the main core member 80 are configured to be interlocked. Accordingly, the main core member 80 rotates integrally with the contact arm 84b. Further, a torsion coil spring-like pressing spring 86 is attached to the contact arm 84b, and urges the contact arm 84b in the direction of the arrow in FIG.

  With the above configuration, since the elastic force of the pressing spring 86 acts on the contact arm 84b, the protruding portion contacts the rotating member 87 and pushes the positioning arm 84a. Furthermore, since the lower end portion of the positioning arm 84a pulls the swing arm 83 through the link, the bearing 82 of the swing arm 83 is pressed against the main core member drive cam 81. Thus, the pressing spring 86 makes the main core member drive cam 81 and the bearing 82 contact, and generates a spring force for bringing the contact arm 84b into contact with the positioning arm 84a.

  In this state, when the main core member driving cam 81 rotates and the peripheral edge portion (bulging portion described later) of the main core member driving cam 81 presses the bearing 82, the swing arm 83 rotates in a direction away from the cam shaft 105. The tip of the swing arm 83 pulls the lower end of the positioning arm 84a through the link. As a result, the rotation member 87 at the upper end of the positioning arm 84a pushes the contact arm 84b, so that the main core member 80 can be swung to the front side together with the contact arm 84b (see FIG. 8).

  In addition, the power transmission unit 120 is configured to transmit the power of the stepping motor 100 to the auxiliary core member 90, as an auxiliary core member drive cam 91, a bearing 92, a swing arm 93, a transmission arm 94, and a transmission shaft. 95 and a holding spring 96.

  The auxiliary core member drive cam 91 is fixed to the cam shaft 105 in the same manner as the main core member drive cam 81. A swing arm 93 is disposed on the back side of the auxiliary core member drive cam 91, and a rotatable bearing 92 is attached to a middle portion of the swing arm 93. The bearing 92 is configured to be able to rotate as appropriate while in contact with the outer peripheral surface of the auxiliary core member drive cam 91.

  The tip of the swing arm 93 is connected to the lower end of a transmission arm 94 supported so as to be swingable at an appropriate position of the power transmission unit 120 via a bar-shaped link. One end of a transmission shaft 95 is attached to the base of the transmission arm 94, and the other end of the transmission shaft 95 is fixed to the auxiliary core member 90. That is, the transmission shaft 95 and the auxiliary core member 90 are configured to be interlocked. Therefore, the auxiliary core member 90 rotates integrally with the transmission arm 94. Further, a torsion coil spring-like holding spring 96 is attached to the transmission arm 94, and the transmission arm 94 is urged in the direction of the dotted line arrow in FIG.

  With the above-described configuration, the holding spring 96 applies the spring force in the direction in which the auxiliary core member 90 swings to the back side (the direction away from the main core member 80) via the transmission arm 94 and the transmission shaft 95. 90. At the same time, the distal end portion of the transmission arm 94 to which the elastic force of the holding spring 96 acts pulls the swing arm 93 through the link, so that the bearing 92 of the swing arm 93 is pressed against the auxiliary core member drive cam 91. In this manner, the holding spring 96 generates a spring force for bringing the auxiliary core member drive cam 91 and the bearing 92 into contact with each other.

  In this state, when the auxiliary core member drive cam 91 rotates and the peripheral edge portion (a bulge portion described later) of the auxiliary core member drive cam 91 presses the bearing 92, the swing arm 93 swings away from the cam shaft 105. The tip of the swing arm 93 pulls the lower end of the transmission arm 94 through the link. As a result, the auxiliary core member 90 can be swung to the front side (direction approaching the main core member 80).

  In addition, when the auxiliary core member 90 is swung to the front side beyond a predetermined angle, the auxiliary core member 90 comes into contact with an unillustrated portion of the main core member 80, and thereafter, the auxiliary core member 90 is the main core member 90. The core member 80 is configured to swing as a single unit (in this case, the distal end portion of the contact arm 84b and the rotating member 87 are appropriately separated). That is, in a state where the auxiliary core member 90 is swung to the front side beyond a predetermined angle, the main core member 80 is driven by the auxiliary core member driving cam 91 instead of the main core member driving cam 81. .

  Next, a configuration for driving the jump plate 40 will be described. The power transmission unit 120 is configured to transmit the power of the stepping motor 100 to the jumping plate 40, and includes a jumping plate driving cam 41, a bearing 42, a swing arm 43, a transmission arm 44, a transmission shaft 45, and a return shaft. And a spring 46.

  The jump plate drive cam 41 is fixed to the cam shaft 105 in the same manner as the auxiliary core member drive cam 91 and the main core member drive cam 81. A swing arm 43 is disposed on the back side of the jump plate drive cam 41, and a rotatable bearing 42 is attached to a middle portion of the swing arm 43. The bearing 42 is configured to be able to rotate as appropriate while in contact with the outer peripheral surface of the spring plate drive cam 41.

  The tip of the swing arm 43 is connected to the lower end of the transmission arm 44 supported so as to be swingable at an appropriate position of the power transmission unit 120 via a bar-shaped link. One end of the transmission shaft 45 is fixed to the base portion of the transmission arm 44, and the other end of the transmission shaft 45 is fixed to the spring plate 40. That is, the transmission shaft 45 and the jump plate 40 are configured to be interlocked. Therefore, the spring plate 40 rotates integrally with the transmission arm 44. Further, a torsion coil spring-like return spring 46 is attached to the transmission arm 44 to urge the transmission arm 44 in the direction of the arrow in FIG.

  With the above configuration, the distal end portion of the transmission arm 44 to which the elastic force of the return spring 46 acts pulls the swing arm 43 through the link, so that the bearing 42 of the swing arm 43 presses against the jump plate drive cam 41. It is done. In this way, the return spring 46 generates a spring force for bringing the spring plate drive cam 41 and the bearing 42 into contact with each other.

  In this state, when the jump plate drive cam 41 rotates and the peripheral portion (bulge portion described later) of the jump plate drive cam 41 presses the bearing 42, the swing arm 43 moves in a direction away from the cam shaft 105, and the swing plate drive cam 41 moves. The tip of the moving arm 43 pulls the lower end of the transmission arm 44 through the link. As a result, the jump plate 40 can be flipped up to the front side (see FIG. 9).

  Next, a configuration in which the winder unit 4 receives the yarn feeding bobbin 21, holds the yarn feeding bobbin 21 at a predetermined position where the yarn 20 is unwound, and discharges it will be described. As described above, in the present embodiment, the jump plate driving cam 41, the main core member driving cam 81, and the auxiliary core member driving cam 91 are configured as the cam coupling mechanism 130 fixed to the common cam shaft 105. The two cams 41, 81, 91 are integrally driven. Further, as shown in FIG. 6, the three cams 41, 81, 91 are respectively formed with bulges, and the postures of the jump plate 40, the main core member 80, and the auxiliary core member 90 are changed by the bulges. Can do. Although the bulge part (holding cam operation area) of the auxiliary core member drive cam 91 and the bulge part (discharge cam operation area) of the jump plate drive cam 41 are gently formed, the bulge part (regulation) of the main core member drive cam 81 is defined. The cam operation region) is formed slightly sharper. In addition, the bulging portion of the auxiliary core member driving cam 91 and the bulging portion of the jump plate driving cam 41 are formed in substantially the same phase, while the bulging portion of the main core member driving cam 81 is formed in a phase that is substantially 180 ° different from them. Has been.

  In the above configuration, when the yarn feeding bobbin 21 is received, the stepping motor 100 is appropriately driven to rotate the three cams 41, 81, 91, and the bearing 92 included in the swing arm 93 is used to drive the auxiliary core member. The cam 91 is brought into contact with a portion slightly passing the peak portion of the bulging portion, and the rotation of the cams 41, 81, 91 is stopped in this state. Thereby, as shown in FIG. 7, the auxiliary core member 90 is slightly tilted from the upright state to the front side.

  In this state, since the auxiliary core member 90 is swung beyond a predetermined angle, the main core member 80 is also swung to the front side in a form pushed by the auxiliary core member 90 as described above. As in the auxiliary core member 90, the posture is slightly tilted from the upright state to the front side. When the yarn feeding bobbin 21 is supplied from the magazine holding unit 61 in this state, the bobbin holding unit 110 (the main core member 80 and the auxiliary core member 90) enters the core tube 21a. In this specification, the posture of the main core member 80 when the yarn feeding bobbin 21 is received (the posture in FIG. 7) is referred to as a receiving posture.

  When the yarn is unwound from the received yarn feeding bobbin 21, the stepping motor 100 is driven again to rotate the cam shaft 105 in the direction indicated by the arrow in FIG. Thereby, the bearings 42 and 92 which the rocking | fluctuation arms 43 and 93 have pass the bulge part completely in the spring board drive cam 41 and the auxiliary core member drive cam 91, and come to contact a non-bulge part. Further, the bearing 82 included in the swing arm 83 comes into contact with the bulging portion of the main core member drive cam 81.

  Accordingly, as shown in FIG. 8, the jumping plate 40 swings from the state of FIG. 7 to the back side and becomes horizontal, and the auxiliary core member 90 swings so that it slightly falls to the back side. Further, as described above, the main core member 80 that has been pushed to the front side by the auxiliary core member 90 also swings to the back side in the same manner as the auxiliary core member 90 swings to the back side. Eventually, the contact arm 84 b comes into contact with the rotating member 87 of the positioning arm 84 a to stop the main core member 80 from swinging. Thereafter, only the auxiliary core member 90 swings back by the spring force of the holding spring 96. It will be. That is, since the auxiliary core member 90 is displaced so as to be relatively away from the main core member 80, the core tube 21a of the yarn supplying bobbin 21 can be held from the inside by the bobbin holding portion 110.

  At this time, the posture in which the swing of the main core member 80 is stopped is determined by the position of the rotating member 87 of the positioning arm 84a. Further, since the positioning arm 84a is connected to the swing arm 83 via a link, the posture of the main core member 80 is such that the bearing 82 of the swing arm 83 is in the bulge portion of the main core member drive cam 81. It can be changed depending on which part is in contact (whether it is in contact with the rising part of the bulging part or the peak part). In other words, the posture of the main core member 80 can be adjusted by changing the rotational phase of the main core member drive cam 81. Even when the posture of the main core member 80 is changed in this way, the auxiliary core member 90 can maintain the holding state of the yarn feeding bobbin 21 without any problem by the elastic force of the holding spring 96.

  In this specification, the posture of the main core member 80 when the yarn feeding bobbin 21 is unwound is referred to as the unwinding posture. In addition, the origin sensor 101 detects the rotational phase of the pulley 104 in a state where the main core member 80 is in an almost upright posture as shown in FIG. It is set to be the origin. Since the unwinding posture of the main core member 80 changes depending on the type of the yarn feeding bobbin 21, the origin detected by the origin sensor 101 does not always match the unwinding posture.

  Next, when discharging the yarn feeding bobbin 21, the stepping motor 100 is appropriately driven to rotate the three cams 41, 81, 91. As a result, the bearings 42 and 92 of the swing arms 43 and 93 come into contact with the bulging portions of the jump plate driving cam 41 and the auxiliary core member driving cam 91. Therefore, as shown in FIG. 9, the spring plate 40 swings greatly to the front side. Further, in conjunction with this, the auxiliary core member 90 swings to the front side to release the holding of the yarn feeding bobbin 21, and the auxiliary core member 90 greatly increases the front side while pushing the main core member 80. Swing. Thereby, the spring board 40 pushes up the lower end of the core tube 21a of the yarn supplying bobbin 21, and the yarn supplying bobbin 21 can be discharged. In the present specification, the posture of the main core member 80 when the yarn feeding bobbin 21 is discharged is referred to as a discharging posture.

  As described above, in the present embodiment, the yarn feeding bobbin 21 is received and held in the unwinding posture (and the unwinding posture) only by driving the stepping motor 100 as a single drive source. Adjustment) and the yarn feeding bobbin 21 can be discharged.

  Next, with reference to FIGS. 10 to 12, a series of flows when the automatic winder 1 performs winding while replacing the yarn feeding bobbin 21 will be described. FIG. 10 is a flowchart showing a process performed by the winder unit 4 when a yarn break or the like occurs. FIG. 11 is a side view showing the first half of the state in which the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted. FIG. 12 is a side view showing the latter half of the state where the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted. Note that the processing shown in this flowchart and the following flowchart is an example, and the effects of the present invention may be obtained by changing the processing content or changing the processing order.

  During the winding operation by the winder unit 4, the clearer 15 detects the yarn defect and cuts the yarn with the cutter 39, the yarn breakage of the yarn being unwound from the yarn feeding bobbin 21 occurs, or the yarn feeding bobbin In some cases, the yarn 20 may be lost after the yarn 21 is unwound. The winder unit 4 monitors the yarn breakage (S101), and when the yarn breakage occurs, the winding operation is stopped (S102).

  Then, when the winding operation is stopped, the lower thread suction and capture by the suction port 32 of the lower thread guide pipe 25 positioned below and the upper thread suction and capture by the upper thread guide pipe 26 are performed. The splicing is started (S102). Thereafter, the unit controller 50 determines whether or not there is a lower thread after piecing based on the detection result of the lower thread detection sensor 31 (S103).

  When the yarn is being cut or unwound by the cutter 39, the yarn remains in the yarn feeding bobbin 21, and the splicing is completed if no mechanical error occurs. Accordingly, the lower thread detection sensor 31 detects the lower thread. At this time, the unit controller 50 controls each component of the winding unit body 6 to restart the winding of the yarn.

  On the other hand, when all the yarns in the yarn feeding bobbin 21 have been unwound and the yarn 20 is lost, the lower yarn detection sensor 31 does not detect the lower yarn because the yarn splicing cannot be performed. At this time, the unit control unit 50 determines that the yarn unwinding of the yarn supplying bobbin 21 has been completed, and operates the bobbin holding unit 110 and the jump plate 40 to perform the discharging process of the core tube 21a (S104). Thereafter, the unit controller 50 causes the bobbin supply device 60 to newly supply the yarn supplying bobbin 21 (S105). At this time, the stepping motor control unit 102 drives the stepping motor 100 to move the main core member 80 to the receiving posture in advance.

  The newly supplied yarn feeding bobbin 21 is guided to the bobbin setting unit 10 as shown in FIG. Then, the stepping motor control unit 102 swings the bobbin holding unit 110 toward the back side.

  Note that the winder unit 4 of the present embodiment has a layout of the bobbin holding unit 110 so that the yarn feeding bobbin 21 crosses the detection range of the chase detection sensor 74 when the bobbin holding unit 110 is swung back. Has been taken into account. Then, the determination unit 51 included in the unit control unit 50 determines whether or not the yarn feeding bobbin 21 is newly supplied based on the detection result of the chase unit detection sensor 74 (S106). Specifically, when the yarn feeding bobbin 21 is detected by the chase portion detection sensor 74 after the unit control unit 50 instructs to newly supply the yarn feeding bobbin 21, the determination unit 51 determines that the yarn feeding bobbin 21 It is determined that 21 is newly supplied. On the other hand, when the yarn feeding bobbin 21 is not detected by the chase portion detection sensor 74 within the predetermined time, the determination unit 51 determines that the yarn feeding bobbin 21 is not newly supplied.

  If the determination unit 51 determines that the yarn feeding bobbin 21 has been newly supplied, the unit control unit 50 stores the determination result in the storage unit 52. The unit controller 50 then catches the newly supplied yarn end of the yarn feeding bobbin 21 and the yarn end on the package side, and starts piecing (S110).

  On the other hand, when the determination unit 51 determines that the yarn feeding bobbin 21 is not newly supplied, the unit control unit 50 stores the determination result in the storage unit 52. The unit controller 50 is configured to send an appropriate signal to the notification lamp 56 without starting the yarn splicing operation. The notification lamp 56 that has received this signal notifies the operator that the yarn feeding bobbin 21 is not newly supplied by using a preset display color or the like (S107).

  Then, the unit controller 50 of the present embodiment determines that the yarn feeding bobbin 21 is not newly supplied, sends an appropriate signal to the notification lamp 56, and continues until the trouble is resolved. The catching operation, the catching operation of the upper thread, and the yarn splicing are not performed. Further, the operator can know that the yarn feeding bobbin 21 is not supplied to the bobbin supply device 60 by the notification of the notification lamp 56. Then, the operator can stop the notification of the notification lamp 56 by supplying the yarn feeding bobbin 21 to the bobbin supplying device 60 (S108) and operating the error release button (S109). Thereafter, the bobbin supply device 60 newly supplies the yarn supplying bobbin 21 according to an instruction from the unit control unit 50 (S105). When the determination unit 51 determines that the yarn supplying bobbin 21 has been supplied, the unit control unit 50 captures the yarn end of the newly supplied yarn supplying bobbin 21 and the yarn end on the package side, and performs the yarn splicing. Is started (S110). The determination result of the determination unit 51 here is configured not to be stored in the storage unit 52.

  In the conventional configuration, since there is no sensor for detecting the presence / absence of the yarn feeding bobbin 21, it is determined whether or not to perform piecing based on the detection result of the lower yarn detection sensor. When the supply of the bobbin 21 fails, the following problem occurs. That is, in the conventional configuration, it is clear that the lower yarn cannot be captured when the yarn feeding bobbin is not supplied, but the yarn joining operation is attempted. The first error occurred when no yarn was detected. Therefore, the conventional yarn winding machine also captures the upper thread when attempting to capture the lower thread, and the captured upper thread is eventually discarded due to the occurrence of an error. Resulting in. In addition, in the configuration that generates an error when the lower thread detection sensor does not detect the lower thread, the cause of the error is that the lower thread capturing means has caused a capturing error (mechanical error). The device side cannot determine whether 21 is not supplied (human error).

  In this regard, in the present embodiment, when the chase portion detection sensor 74 detects that the yarn supplying bobbin 21 is not present, the lower yarn capturing operation can be stopped. Therefore, the waste of the upper thread as described above can be prevented. Further, since the presence / absence of the yarn feeding bobbin 21 is detected by the chase portion detection sensor 74, the cause of the error can be clearly identified.

  Furthermore, in this embodiment, the time when a mechanical error occurs, the time when a human error occurs, and the like are stored in the storage unit 52 each time, and the calculation unit 53 included in the unit control unit 50 is based on the stored contents. Thus, the number of human errors in a predetermined time zone, the number of mechanical errors in a predetermined time zone, and the like can be calculated. The calculation result can be displayed on the unit display unit 19.

  As described above, in the present embodiment, it is possible to perform more appropriate measures against the error. Specifically, when errors due to the absence of supply of the yarn supplying bobbin 21 occur frequently, it is suspected that there is a problem in the operation of the operator supplying the yarn supplying bobbin 21 to the magazine can 62. Measures such as guidance can be appropriately taken. Further, since a human error is not counted as a mechanical error, a pure mechanical error can be detected, and an accurate maintenance operation can be performed.

  In addition to or instead of providing the winder unit 4 with the functions of the storage unit 52 and the calculation unit 53, the machine base control device 7 may have the functions as shown in FIG. FIG. 13 is a block diagram illustrating a modification of the machine base control device 7. In this configuration, the unit controller 50 outputs the time at which a mechanical error has occurred, the time at which a human error has occurred, and the like to the machine control device 7. And these are memorize | stored in the memory | storage part 252 with which the machine control apparatus 7 is provided. When the operator operates the machine base input unit 8 to specify an appropriate time zone, the calculation unit 253 provided in the machine base control device 7 calculates the number of human and mechanical errors in the time zone. To do. The calculation result can be displayed on the machine base display unit 9.

  Then, the unit control unit 50 adjusts the position of the unwinding side end of the yarn feeding bobbin 21 in parallel with the yarn splicing (S111). Hereinafter, the adjustment of the position of the unwinding side end of the yarn feeding bobbin 21 will be described in detail with reference to FIGS. 11, 12, and 14. FIG. 14 is a flowchart showing a process for adjusting the position of the unwinding side end of the yarn supplying bobbin 21.

  That is, in this embodiment, since the movable member 72 of the unwinding assisting device 12 is configured to cover the yarn feeding bobbin 21, the contact between the movable member 72 and the yarn feeding bobbin 21 is reliably prevented. . With this configuration, the winder unit 4 of this embodiment can accurately position the unwinding side end of the yarn feeding bobbin 21 at the unwinding reference position. The winder unit 4 of the present embodiment adjusts the position of the yarn feeding bobbin 21 using the chase part detection sensor 74 provided in the unwinding assisting device 12.

  This will be specifically described below. That is, the stepping motor control unit 102 controls the stepping motor 100 to rotate the main core member 80 in the receiving posture to the back side so that the yarn feeding bobbin 21 is once erected. At this time, the unit controller 50 applies the appropriate tension to the yarn 20 by bringing the brush portion 11b of the yarn crimping prevention device 11 into contact with the upper end portion of the yarn feeding bobbin 21 (see FIG. 11B), The occurrence of yarn crimping is prevented (S201). Thereafter, the stepping motor control unit 102 swings the bobbin holding unit 110 so as to slightly tilt the yarn feeding bobbin 21 to the front side again (S202). Then, when the yarn feeding bobbin 21 is detected by the chase part detection sensor 74, the unit controller 50 stops the swinging of the bobbin holding part 110 (S203, FIG. 12 (a)).

  Further, the storage unit 52 provided in the unit control unit 50 can move the yarn feeding bobbin 21 to an appropriate position if the stepping motor 100 is driven by how many pulses from the position where the yarn feeding bobbin 21 starts to be detected by the chase detection sensor 74. (Adjustment distance) is stored in association with the type of yarn feeding bobbin 21 to be used. The operator inputs the type of yarn feeding bobbin 21 to be used to the unit input unit 18 before starting the winding operation. Thereby, the adjustment distance which should be used in the present winding operation | work is set to the unit control part 50. FIG. Then, the unit control unit 50 outputs a predetermined number of pulses to the stepping motor 100 based on the set adjustment distance, and swings the bobbin holding unit 110 to the back side (S204, FIG. 12B). ).

  Thereby, the unwinding side end of the yarn feeding bobbin 21 can be adjusted to the unwinding reference position. Therefore, the contact between the movable member 72 and the yarn feeding bobbin 21 can be prevented while appropriately exerting the function of the unwinding assisting device 12.

  If the type of the yarn feeding bobbin 21 to be used is changed, an appropriate adjustment distance can be set in the unit control unit 50 by performing an appropriate input to the unit input unit 18. Further, this input can be made to the machine base input unit 8 instead of being made to the unit input unit 18. In this case, the machine base control device 7 transmits the content input to the machine base input unit 8 to each winder unit 4. Thereby, an appropriate adjustment distance can be set collectively for the unit control unit 50 of each winder unit 4.

  As described above, the winder unit 4 of this embodiment includes the bobbin holding unit 110, the chase unit detection sensor 74, the drive unit 200, and the stepping motor control unit 102. The bobbin holding unit 110 holds the yarn feeding bobbin 21. The chase portion detection sensor 74 detects the unwinding side end portion of the yarn feeding bobbin 21 held by the bobbin holding portion 110. The drive unit 200 drives the bobbin holding unit 110 so as to adjust the position of the unwinding side end of the yarn feeding bobbin 21. The stepping motor control unit 102 controls the driving unit 200 so that the position of the yarn feeding bobbin 21 unwinding side end is matched with a preset target position based on the detection result of the chase portion detection sensor 74.

  Thereby, in the winder unit 4 of the present embodiment, the winding operation for forming the package from the yarn unwound from the yarn supplying bobbin 21 is performed by matching the position of the unwinding side end of the yarn supplying bobbin 21 with the target position. Can start from. Thereby, since it can be started after adjusting the position of the unwinding side end of the yarn feeding bobbin 21 to a position where the winding operation can be performed satisfactorily, a more appropriate winding operation can be performed. . Further, since the position of the unwinding side end of the yarn feeding bobbin 21 with respect to the target position can be automatically executed, the operator can adjust the position of the unwinding side end of the yarn feeding bobbin 21 manually compared to the configuration in which the adjustment is performed manually. Can reduce the burden.

  Further, the winder unit 4 of the present embodiment includes an unwinding assisting device 12 that assists unwinding of the yarn of the yarn supplying bobbin 21. A preset target position is the unwinding reference position of the unwinding assisting device 12. The stepping motor control unit 102 controls the drive unit 200 so that the position of the unwinding side end of the yarn feeding bobbin 21 matches the unwinding reference position of the unwinding assisting device 12.

  Thereby, in the winder unit 4 of this embodiment, the position of the unwinding side end part of the yarn feeding bobbin 21 can be matched with the unwinding reference position of the unwinding assisting device 12. Thereby, in the winder unit 4 of this embodiment, since the function of the unwinding auxiliary device 12 can be properly exhibited, the winding operation is performed while appropriately maintaining the tension of the yarn unwound from the yarn supplying bobbin 21. By executing, the work efficiency of the winding work can be improved.

  Further, the winder unit 4 of the present embodiment includes a storage unit 52 in which an adjustment distance for adjusting the unwinding side end of the yarn feeding bobbin 21 to the unwinding reference position is stored. The stepping motor control unit 102 controls the driving unit 200 so that the unwinding side end of the yarn supplying bobbin 21 passes through the detection region of the chase detecting sensor 74, and the chase detecting sensor 74 detects the yarn supplying bobbin 21. The drive unit 200 is controlled so that the position of the unwinding side end of the yarn feeding bobbin 21 is moved by the adjustment distance stored in the storage unit 52 from the position where the unwinding side end is detected.

  Thereby, in the winder unit 4 of this embodiment, the unwinding side end part of the yarn feeding bobbin 21 can be moved to the target position based on the adjustment distance. Thereby, in the winder unit 4 of the present embodiment, the position of the unwinding side end of the yarn feeding bobbin 21 can be accurately adjusted to the unwinding reference position.

  Further, in the winder unit 4 of the present embodiment, the storage unit 52 stores a plurality of adjustment distances corresponding to the type of the yarn feeding bobbin 21. Moreover, the unit input part 18 (or machine base input part 8) which sets one adjustment distance among the several adjustment distances which the memory | storage part 52 has memorize | stored is provided. Then, the stepping motor control unit 102 controls the drive unit 200 based on the adjustment distance set by the unit input unit 18.

  Thereby, in the winder unit 4 of this embodiment, the position of the unwinding side end part of the yarn feeding bobbin 21 can be adjusted to the target position based on a plurality of adjustment distances corresponding to the type of the yarn feeding bobbin 21. As a result, the operator can set the type of the yarn feeding bobbin 21 that performs the winding operation to the winder unit 4 so that the position of the unwinding side end of the yarn feeding bobbin 21 can be more precisely adjusted to the target position. be able to.

  Further, in the winder unit 4 of the present embodiment, the unwinding assisting device 12 moves following the change of the chase portion that is the yarn layer end portion of the yarn feeding bobbin 21 as the winding operation progresses, thereby Assists the yarn bobbin 21 to be unwound. The chase part detection sensor 74 is a chase part detection means capable of detecting the chase part and detects the position of the unwinding side end part of the yarn feeding bobbin 21.

  Thereby, in the winder unit 4 of this embodiment, the detection part which detects the unwinding side edge part of the yarn feeding bobbin 21 and the detection part which detects a chase part are comprised in common. Thereby, in the winder unit 4 of this embodiment, the number of parts is reduced. Accordingly, the winder unit 4 of the present embodiment can be configured compactly and can be manufactured at low cost.

  Further, in the winder unit 4 of the present embodiment, the unwinding assisting device 12 includes a movable member 72 that is a cylindrical member that assists in unwinding the yarn of the yarn feeding bobbin 21 by moving in the vertical direction. The unwinding reference position is located on the extension line of the center of the movable member 72.

  Thereby, in the winder unit 4 of the present embodiment, the unwinding side end portion of the yarn feeding bobbin 21 can be aligned with the extension line of the axis of the movable member 72 of the unwinding assisting device 12, so that the yarn feeding bobbin 21 The winding operation can be executed while maintaining the tension of the unwound yarn more appropriately.

  In the winder unit 4 of the present embodiment, the drive unit 200 includes the origin sensor 101 whose origin is the point where the position of the unwinding side end of the yarn feeding bobbin 21 is located on the extension line of the center of the movable member 72. A stepping motor 100 is provided.

  Thereby, the winder unit 4 of this embodiment uses the number of steps of the motor to match the position of the unwinding side end of the yarn feeding bobbin 21 with the unwinding reference position, thereby making the yarn feeding bobbin 21 simpler and more elaborate. The position of the unwinding side end can be adjusted.

  Further, the winder unit 4 of the present embodiment includes a yarn crimping prevention device 11 that prevents the yarn unwound from the yarn feeding bobbin 21 from coming into contact with the yarn feeding bobbin 21. The stepping motor control unit 102 controls the yarn shrinkage prevention device 11 to contact the yarn feeding bobbin 21 before the position of the unwinding side end portion of the yarn feeding bobbin 21 is adjusted to the unwinding reference position.

  The winder unit 4 of the present embodiment can bring the yarn on the yarn feeding bobbin 21 into contact with the yarn curl occurrence prevention device 11 before the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted to the unwinding reference position. . Thereby, for example, the winder unit 4 of this embodiment unwinds the yarn of the yarn feeding bobbin 21 during the operation of adjusting the position of the unwinding side end of the yarn feeding bobbin 21 to the unwinding reference position. Therefore, it is possible to prevent the yarn from being curled.

  In the winder unit 4 of the present embodiment, the bobbin holding unit 110 includes a main core member 80 and an auxiliary core member 90. The main core member 80 defines the posture of the yarn feeding bobbin 21. The auxiliary core member 90 causes the main core member 80 to hold the yarn feeding bobbin 21 by changing the posture with respect to the main core member 80. The direction in which the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted is the direction in which the posture of the auxiliary core member 90 relative to the main core member 80 is changed.

  When the winder unit 4 of the present embodiment is configured to include the main core member 80 and the auxiliary core member 90 in the bobbin holding portion 110, the position of the unwinding side end of the yarn feeding bobbin 21 is the unwinding reference position. Even if the position of the auxiliary core member 90 with respect to the main core member 80 is shifted in the direction of changing, the position of the unwinding side end of the yarn feeding bobbin 21 can be adjusted to the unwinding reference position.

  Next, a first modification of the above embodiment will be described with reference to FIGS. 15 to 18. FIG. 15 is a block diagram illustrating a main configuration of the winder unit 4 according to the first modification and the second modification. FIG. 16 is a flowchart illustrating a process of adjusting the position of the unwinding side end of the yarn feeding bobbin 21 according to the first modification. FIG. 17 is a side view showing the first half of the state where the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted according to the first modification. FIG. 18 is a side view showing the latter half of the state where the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted according to the first modification.

  In 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. Further, in this modified example, in order to make it easy to see the periphery of the yarn feeding bobbin 21, the illustration of the yarn curl occurrence prevention device 11 and the chase portion detection sensor 74 is omitted.

  In the above embodiment, whether or not the yarn feeding bobbin 21 is newly supplied is detected by the chase part detection sensor 74 of the unwinding assisting device 12, but in this modification, the bobbin provided inside the opening / closing part 68. The yarn feeding bobbin 21 is detected by the detection sensor 58. In this modification, the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted based on the detection result of the position detection sensor (position detection unit) 59 instead of the chase part detection sensor 74. Further, the unit control unit 50 of the winder unit 4 of the present modification has a configuration including a calculation unit 54 as shown in FIG. Hereinafter, the process which adjusts the position of the unwinding side edge part of the yarn feeding bobbin 21 is demonstrated concretely.

  Since the bobbin detection sensor 58 is disposed inside the opening / closing portion 68, when the yarn feeding bobbin 21 is newly supplied (S301), the yarn feeding bobbin 21 enters the detection range of the bobbin detection sensor 58 (FIG. 17). (See (a)). The determination unit 51 of the unit control unit 50 determines whether or not the yarn feeding bobbin 21 is newly supplied based on the detection result of the bobbin detection sensor 58 (S302). The method for determining whether or not the yarn supplying bobbin 21 has been newly supplied and the control performed by the unit controller 50 after the presence or absence of the yarn supplying bobbin 21 is determined can be performed in the same manner as in the above embodiment.

  The unit control unit 50 drives the stepping motor 100 to swing the bobbin holding unit 110 to the back side before and after the determination unit 51 determines whether or not the yarn feeding bobbin 21 is newly supplied (S303). . When the yarn feeding bobbin 21 is raised to the back side, the unwinding side end of the yarn feeding bobbin 21 is detected by the position detection sensor 59 (see FIG. 17B). The position detection sensor 59 has a linear detection range, and is arranged so that the detection range intersects the virtual line L1 described above. And the calculation part 54 with which the unit control part 50 is provided is the pulse number from an origin when the unwinding side edge part of the yarn feeding bobbin 21 exists in the momentary position (1st position) detected by the position detection sensor 59. Is calculated (S304).

  Then, when the bobbin holding portion 110 is further swung back, the unwinding side end portion of the yarn feeding bobbin 21 is not detected by the position detection sensor 59 (see FIG. 18A). At this time, the calculation unit 54 calculates the number of pulses from the origin when the unwinding side end of the yarn feeding bobbin 21 is at the momentary position (second position) when it is no longer detected by the position detection sensor 59 ( S305). Thereafter, the calculation unit 54 calculates the number of pulses from the origin at the third position, which is an intermediate position between the first position and the second position (S306).

  Then, the stepping motor control unit 102 drives the stepping motor 100 based on the calculated number of pulses at the third position, and swings the bobbin holding unit 110 to the front side (S307, FIG. 18 (b)). .

  Thereby, the unwinding side end of the yarn feeding bobbin 21 can be adjusted to the unwinding reference position. Therefore, the contact between the movable member 72 and the yarn feeding bobbin 21 can be prevented while appropriately exerting the function of the unwinding assisting device 12.

  The intermediate position may be a position that bisects the first position and the second position, but is not limited to this, and various positions may be adopted depending on the layout. it can. Further, the count of the number of pulses is obtained by counting the pulses output from the stepping motor control unit 102 to the stepping motor 100.

  In the first modification, the first position, the second position, and the third position are calculated, but instead, the following method may be used. That is, the first position is calculated, and the pulses output from the stepping motor control unit 102 to the stepping motor 100 are counted from the first position until the moment when the unwinding side end of the yarn feeding bobbin 21 is not detected. . Then, a method of performing alignment by returning the bobbin holding unit 110 by a distance corresponding to half of the counted number of pulses (turning to the front side) can be considered.

  As described above, in the winder unit 4 of the first modified example, the position detection sensor 59 is provided at the unwinding reference position. The winder unit 4 of the first modified example includes a stepping motor control unit 102 and a calculation unit 54. The stepping motor control unit 102 drives the drive unit 200 so that the unwinding side end portion of the yarn feeding bobbin 21 passes through the detection region of the position detection sensor 59. The calculating unit 54 includes a first position where the unwinding side end of the yarn supplying bobbin 21 is in the detection region of the position detection sensor 59, and the unwinding side end of the yarn supplying bobbin 21 being the position detection sensor 59. A second position that is a position that has come out from the detection region and a third position that is an intermediate position between the first position and the second position are calculated. Further, the stepping motor control unit 102 drives the driving unit 200 so as to move the position of the unwinding side end of the yarn feeding bobbin 21 from the second position to the third position based on the calculation result of the calculating unit 54. To control.

  Thereby, in the winder unit 4 of the first modified example, the position detection sensor 59 provided at the unwinding reference position calculates the position of the axis of the yarn feeding bobbin 21, so that the yarn feeding bobbin is simply and accurately. The position of the unwinding side end portion 21 can be adjusted to the unwinding reference position.

  Next, a second modification of the above embodiment will be described with reference to FIGS. 15 and 19 to 21. FIG. 19 is a flowchart showing processing for adjusting the position of the unwinding side end of the yarn supplying bobbin 21 according to the second modification. FIG. 20 is a side view showing the first half of the state where the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted according to the second modification. FIG. 21 is a side view showing the latter half of the state where the position of the unwinding side end of the yarn feeding bobbin 21 is adjusted according to the second modification.

  In 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. Further, in this modified example, in order to make it easy to see the periphery of the yarn supplying bobbin 21, the illustration of the yarn curl occurrence preventing device 11 is omitted. Further, the winder unit 4 of the present modification also includes a calculation unit 54 as shown in FIG. In this modification, the position of the unwinding side end portion of the yarn feeding bobbin 21 is adjusted using the chase portion detection sensor 74. Hereinafter, the process which adjusts the position of the unwinding side edge part of the yarn feeding bobbin 21 is demonstrated concretely.

  When the yarn supplying bobbin 21 is newly supplied (S401, FIG. 20A), the unit controller 50 swings toward the back side of the bobbin holding unit 110 (S402). At this time, the calculation unit 54 determines the position from the origin when the unwinding side end of the yarn supplying bobbin 21 is at the position (first position, FIG. 20B) when it is detected by the chase detection sensor 74. The number of pulses is calculated (S403). Then, the yarn supplying bobbin 21 is further swung to the back side, and is in a position (second position, FIG. 21A) when the yarn supplying bobbin 21 is not detected by the chase portion detection sensor 74. The number of pulses from the origin at that time is calculated (S404).

  Then, the calculation unit 54 calculates the number of pulses from the origin at the third position, which is an intermediate position between the first position and the second position (S405). Thereafter, the stepping motor control unit 102 calculates a final adjustment distance based on the third position and the adjustment distance set based on the stored contents of the storage unit 52 (S406). Based on the final adjustment distance, the number of pulses to be output to the stepping motor 100 is determined.

  Then, the stepping motor control unit 102 drives the stepping motor 100 by the determined number of pulses, thereby rotating the bobbin holding unit 110 to the back side (S407, FIG. 21 (b)).

  In this way, the winder unit 4 of the second modified example can match the unwinding side end of the yarn supplying bobbin 21 with the unwinding reference position. Therefore, the contact between the movable member 72 and the yarn feeding bobbin 21 can be prevented while appropriately exerting the function of the unwinding assisting device 12.

  As described above, the winder unit 4 of the second modified example includes the storage unit 52 and the calculation unit 54. The storage unit 52 stores an adjustment distance for adjusting the unwinding side end of the yarn feeding bobbin 21 to the unwinding reference position. The calculation unit 54 includes a first position where the unwinding side end of the yarn supplying bobbin 21 enters the detection region of the chase portion detecting sensor 74 and the unwinding side end of the yarn supplying bobbin 21 detecting the chase portion. A second position that is a position that is output from the detection area of the sensor 74 and a third position that is an intermediate position between the first position and the second position are calculated, and the third position and the storage unit 52 are calculated. The final adjustment distance is calculated from the stored adjustment distance. The stepping motor control unit 102 controls the drive unit 200 to move the position of the unwinding side end of the yarn feeding bobbin 21 by the final adjustment distance calculated by the calculation unit 54 from the second position.

  Thereby, the diameter of the yarn supplying bobbin 21 is calculated by calculating the first position and the second position, and the position of the axis of the yarn supplying bobbin 21 is calculated by calculating the third position. Can do. Thereby, the position of the axial center of the unwinding side end part of the yarn feeding bobbin 21 can be adjusted to the target position. Therefore, the position of the unwinding side end portion of the yarn feeding bobbin 21 can be adjusted to a more appropriate position for performing the winding operation.

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

  In the embodiment and the modified example, when it is determined that the yarn feeding bobbin 21 is not supplied, the other processing is not performed until the error is resolved. Instead, for example, a predetermined number of times is performed. The yarn feeding bobbin 21 can be re-supplied.

  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 unwinding reference position is set as the base of the unwinding assisting device 12, but the unwinding reference position may be a preset target position, The member that is the basis of the setting is not limited to the unwinding assisting device 12. For example, the unwinding reference position may be set in a winder unit 4 of a type that does not include the unwinding assisting device 12. In addition to being set based on the unwinding assisting device 12, the unwinding reference position is, for example, a position on the extension line of the center position where the yarn 20 is traversed with respect to the take-up bobbin 22, or the yarn feeding bobbin 21. A position on the vertical line of the guide member that guides the unwound yarn may be used.

  In the above embodiment and the modified example, the stepping motor 100 is used to drive the jump plate 40 and the bobbin holding unit 110. However, instead of this, for example, a servo motor, a linear motor, a voice coil motor, or the like is used. The power transmission unit 120 may be driven.

  In the above-described embodiment and modification, the transmissive photosensor is used for the chase detection sensor 74, the position detection sensor 59, and the bobbin detection sensor 58, but instead, for example, a reflective photosensor or the like is used. Anyway. Moreover, it is good also as a structure which detects the movement or state of the chase part of the yarn supply bobbin 21 by detecting the yarn supply bobbin 21 as an image with a camera instead of the structure which detects the yarn supply bobbin 21 with a sensor.

  In the above embodiment and the modification, a gate-type tension applying device is used as the tension applying device 13, but instead of this, for example, a known disk-type tension applying device is used, and a predetermined tension is applied to the traveling yarn. It may be configured to give.

  In the above embodiment and the modification, the pulse for controlling the stepping motor 100 is used for detecting the position of the bobbin holding unit 110. However, the position may be detected by feedback control of the servo motor. Moreover, you may detect the angle of the bobbin holding part 110 using an angle sensor.

  In the embodiment and the modification, the bobbin supply device 60 including the magazine can 62 is described. However, the bobbin supply device 60 supplies the yarn supplying bobbin 21 to a predetermined position where the yarn 20 is unwound. If there is, it is not restricted to this configuration. For example, it is good also as a structure provided with the column-shaped storage member which can stack and store the yarn supply bobbins 21 and to supply the yarn supply bobbins 21 from the storage members.

  In the embodiment and the modification, the bobbin supply device 60 including the magazine can 62 is described, but the configuration of the bobbin supply device 60 is not limited to this. For example, the bobbin supply device 60 may be a tray-type yarn supply bobbin supply device 60 that supplies a tray loaded with the yarn supply bobbins 21 to the unwinding position by conveying the tray with a conveyor belt. In the winder unit 4 including the tray type yarn feeding bobbin supply device 60, the position of the unwinding side end of the yarn feeding bobbin 21 is moved in the front-rear direction by switching the conveying direction of the conveyor, and the yarn feeding bobbin 21 is unwound. The position of the heel side end can be adjusted to the target position. In addition, a swing member that swings the tray at the unwinding position is provided, and the position of the unwinding side end of the yarn supplying bobbin 21 is adjusted to the target position by swinging the yarn supplying bobbin 21 at the unwinding position. Conceivable.

1 Automatic winder 4 Winder unit (winding unit)
7 Machine control device 8 Machine input part (setting part)
DESCRIPTION OF SYMBOLS 11 Twist prevention apparatus 12 Unwinding assistance apparatus 18 Unit input part (setting part)
52 storage unit 54 calculation unit 59 position detection sensor (position detection unit)
72 Movable member (unrolling cylinder member)
74 Chase detection sensor (position detection unit, chase detection means)
80 Main core member (regulated member)
90 Auxiliary core member (holding member)
100 Stepping motor 101 Origin sensor 102 Stepping motor control unit (control unit)
110 Bobbin holding part (bobbin holding mechanism)
120 power transmission unit 130 cam coupling mechanism 200 drive unit

Claims (11)

A winding unit for winding a yarn unwound from a yarn feeding bobbin to form a package,
A bobbin holding mechanism for holding the yarn feeding bobbin;
A position detection unit for detecting the unwinding side end of the yarn feeding bobbin held by the bobbin holding mechanism;
A drive unit that drives the bobbin holding mechanism to adjust the position of the unwinding side end of the yarn feeding bobbin;
A control unit that controls the drive unit so as to match the position of the yarn feeding bobbin unwinding side end with a preset target position based on the detection result of the position detection unit;
A winding unit comprising: The winding unit according to claim 1,
Provided with an unwinding assisting device for assisting unwinding of the yarn of the yarn feeding bobbin,
The preset target position is the unwinding reference position of the unwinding assisting device,
The said control part controls the said drive part so that the position of the unwinding side edge part of a yarn feeding bobbin may be matched with the unwinding reference | standard position of the said unwinding assistance apparatus, The winding unit characterized by the above-mentioned. The winding unit according to claim 1,
A storage unit storing an adjustment distance for aligning the unwinding side end of the yarn feeding bobbin with the target position;
The control unit controls the driving unit so that the unwinding side end of the yarn supplying bobbin passes through the detection region of the position detecting unit, and the position detecting unit is the unwinding side end of the yarn supplying bobbin. A winding unit that controls the drive unit so as to move the position of the unwinding side end of the yarn feeding bobbin by an adjustment distance stored in the storage unit from the position where the yarn is detected. The winding unit according to claim 3,
The storage unit stores a plurality of adjustment distances corresponding to the type of yarn feeding bobbin,
A setting unit for setting one adjustment distance among the plurality of adjustment distances stored in the storage unit;
A winding unit that controls the drive unit based on an adjustment distance set by the setting unit. The winding unit according to any one of claims 1 to 3,
A storage unit that stores an adjustment distance for adjusting the unwinding side end of the yarn feeding bobbin to the target position;
A first position where the unwinding side end of the yarn feeding bobbin enters the detection region of the position detection unit, and a position where the unwinding side end of the yarn feeding bobbin exits from the detection region of the position detection unit And a third position that is an intermediate position between the first position and the second position, and the adjustment distance stored in the storage position and the third position. And a calculation unit for calculating the final adjustment distance from
The control unit controls the driving unit to move the position of the unwinding side end of the yarn feeding bobbin by the final adjustment distance calculated by the calculation unit from the second position. Winding unit to be used. The winding unit according to claim 1,
The position detection unit is provided at the target position,
The control unit drives the drive unit so that the unwinding side end of the yarn feeding bobbin passes through the detection region of the position detection unit,
A first position where the unwinding side end of the yarn feeding bobbin enters the detection region of the position detection unit, and a position where the unwinding side end of the yarn feeding bobbin exits from the detection region of the position detection unit A calculation unit that calculates a second position, and a third position that is an intermediate position between the first position and the second position,
The control unit controls the drive unit to move the position of the unwinding side end portion of the yarn feeding bobbin from the second position to the third position based on the calculation result of the calculation unit. A winding unit characterized by that. The winding unit according to claim 2,
The unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change in the chase portion that is the yarn layer end portion of the yarn supplying bobbin as the winding operation proceeds,
The winding unit according to claim 1, wherein the position detecting unit is a chase unit detecting unit capable of detecting the chase unit. The winding unit according to claim 2 or 7,
The unwinding assisting device includes a unwinding cylinder member that is a cylinder member that assists in unwinding the yarn of the yarn feeding bobbin by moving in the vertical direction,
The winding unit, wherein the unwinding reference position is located on an extension line of the center of the unwinding cylinder member. The winding unit according to claim 8,
The drive unit includes a stepping motor having an origin sensor whose origin is a point where the position of the unwinding side end portion of the yarn feeding bobbin is located on the extension line of the center of the unwinding cylinder member. unit. The winding unit according to claim 9,
A yarn crimping prevention device that prevents the yarn unwound from the yarn feeding bobbin by coming into contact with the yarn feeding bobbin;
The control unit controls the yarn shrinkage prevention device to contact the yarn feeding bobbin before the position of the unwinding side end of the yarn feeding bobbin is adjusted to the target position. . The winding unit according to any one of claims 1 to 10,
The bobbin holding mechanism is
A regulating member that regulates the posture of the yarn feeding bobbin;
A holding member that holds the yarn feeding bobbin on the defining member by changing the attitude relative to the defining member;
With
The winding unit, wherein a direction in which the position of the unwinding side end of the yarn feeding bobbin is adjusted is a direction in which the posture of the holding member with respect to the defining member is changed.

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