JP2015101453A - Bobbin holding device, bobbin setting device, and yarn winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bobbin holding device capable of directly holding an empty bobbin conveyed by a conveyor, a bobbin setting device, and a yarn winder.SOLUTION: A bobbin holding device 110 includes: a reception part 112 for receiving a bobbin T conveyed by a belt conveyor; a bobbin holding part 114 for directly holding the bobbin T; and movement parts 116 and 120 for moving the reception part 112 and the bobbin holding part 114 together to a first position to receive the bobbin T, conveyed by the belt conveyor 70, by the reception part 112 and a second position different from the first position.

Description

  The present invention relates to a bobbin holding device, a bobbin setting device, and a yarn winding machine.

  In the yarn winding machine, when the yarn is wound around the bobbin and the package becomes full, the package is doffed by the doffing device, and a new empty bobbin is set in the cradle by the supply device (gripper). As an apparatus for supplying an empty bobbin to a doffing apparatus, for example, an apparatus described in Patent Document 1 is known. In the bobbin supply device described in Patent Document 1, a bobbin magazine of a doffing apparatus that transports an empty bobbin by a conveyor provided along the direction in which the spinning units are arranged and stops at the position of the spinning unit that has requested doffing. On the other hand, the bobbin catcher wipes off the empty bobbin conveyed by the conveyor and supplies the empty bobbin.

JP-A-3-213529

  In the above doffing apparatus, the gripper acquires the empty bobbin that has been wiped off from the bobbin magazine from the bobbin magazine, and the gripper sets the empty bobbin in the cradle. Here, the doffing device may not include a bobbin magazine. In the case of such a configuration, a configuration is required in which the empty bobbin conveyed by the conveyor is held and the empty bobbin is directly supplied to the gripper.

  An object of the present invention is to provide a bobbin holding device, a bobbin setting device, and a yarn winding machine that can directly hold empty bobbins conveyed by a conveyor.

  A bobbin holding device according to an aspect of the present invention includes a receiving unit that receives an empty bobbin conveyed by a conveyor, a first holding unit that directly holds an empty bobbin, and a first receiving unit that receives an empty bobbin conveyed by a conveyor. And a moving part that moves the receiving part and the first holding part together at a position 1 and a second position different from the first position.

  The bobbin holding device receives the empty bobbin conveyed by the conveyor by the receiving unit, and directly holds the empty bobbin by the first holding unit. Thereby, the bobbin holding device can directly hold the empty bobbin conveyed by the conveyor. In the bobbin holding device, the receiving unit and the first holding unit are moved together by the moving unit to the first position for receiving the empty bobbin and the second position different from the first position. Accordingly, the bobbin holding device can directly supply the empty bobbin to the gripper by moving the first holding unit to the second position where the empty bobbin is supplied to the gripper by the moving unit, for example.

  A bobbin holding device according to another aspect of the present invention includes a receiving part that receives an empty bobbin conveyed by a conveyor, and a first holding part that is provided in the receiving part and directly holds the empty bobbin.

  The bobbin holding device receives the empty bobbin conveyed by the conveyor by the receiving unit, and directly holds the empty bobbin by the first holding unit. Thereby, the bobbin holding device can directly hold the empty bobbin conveyed by the conveyor.

  In one embodiment, the bobbin holding device moves the first holding unit to a first position where the empty bobbin conveyed by the conveyor is received by the receiving unit and a second position different from the first position. You may provide the moving part to make. Accordingly, the bobbin holding device can directly supply the empty bobbin to the gripper by moving the first holding unit to the second position where the empty bobbin is supplied to the gripper by the moving unit, for example.

  In one embodiment, the first holding unit may be located in the internal space of the hollow empty bobbin and hold the empty bobbin from the inside of the empty bobbin. The empty bobbin is formed in a cylindrical shape with, for example, paper. Therefore, if the empty bobbin is gripped from the outer peripheral surface side, the empty bobbin may be crushed. Therefore, the first holding unit is positioned inside the empty bobbin and holds the empty bobbin. The empty bobbin has strength against a force applied from the inside. Therefore, the first holding unit can hold the empty bobbin without crushing it. Moreover, normally, when an empty bobbin is conveyed by a conveyor, it is conveyed in the fall state (a state in which at least a part of the outer peripheral surface of the empty bobbin is in contact with the conveyor). Therefore, in the bobbin holding device, the end portion (end surface) of the empty bobbin can be received by the receiving portion, and at the same time, the first holding portion can be positioned in the internal space of the empty bobbin.

  In one embodiment, the bobbin holding device includes a switching unit that switches the first holding unit between a first state when the empty bobbin is not held and a second state when the empty bobbin is held. The 1 holding unit may not contact the inside of the empty bobbin in the first state, and may contact the inside of the empty bobbin in the second state. Thus, in the bobbin holding device, the empty bobbin can be held and released by the switching of the state of the first holding unit by the switching unit.

  In one embodiment, the moving unit may include an arm unit that supports the receiving unit and the first holding unit, and a drive unit that drives the arm unit. Thereby, in the bobbin holding device, the empty bobbin can be moved from the first position to the second position.

  A bobbin setting device according to the present invention includes the above-described bobbin holding device and a supply device that receives an empty bobbin from the bobbin holding device and supplies the empty bobbin to a target position.

  In this bobbin setting device, the empty bobbin held by the bobbin holding device is received by the supply device and supplied to the target position. Thereby, the bobbin setting device can supply the empty bobbin conveyed by the conveyor to the target position.

  A yarn winding machine according to one aspect of the present invention includes the bobbin setting device, a conveyor that conveys an empty bobbin, a second holding unit that rotatably holds the empty bobbin, and an empty held by the second holding unit. A plurality of yarn winding units each including a winding device that winds the yarn around the bobbin to form a package, and the bobbin setting device supplies the empty bobbin to the second holding unit that is the target position by the supply device .

  In this yarn winding machine, the supply device receives the empty bobbin held by the bobbin holding device, and the supply device supplies the empty bobbin to the second holding unit. Thus, the yarn winding machine can simplify the configuration because the supply device can supply the empty bobbin received from the first holding unit of the bobbin holding device to the yarn winding unit as it is.

  In one embodiment, the yarn winding machine includes a control unit that controls the operation of the bobbin setting device, and the control unit supplies the first bobbin to the second holding unit by the supply device. May hold other empty bobbins conveyed by the conveyor. Thus, since the yarn winding machine performs two operations simultaneously, the operating efficiency of the yarn winding machine can be improved.

  A yarn winding machine according to another aspect of the present invention includes the bobbin setting device, a conveyor that conveys an empty bobbin, a second holding unit that rotatably holds the empty bobbin, and an empty held by the second holding unit. A plurality of yarn winding units each having a winding device for winding a yarn around a bobbin to form a package, and an empty bobbin supplied from the bobbin setting device are stored corresponding to each of the plurality of yarn winding units. A bobbin setting device that moves the empty bobbin from the conveyor to the storage unit by the moving unit of the bobbin holding device, and the second holding unit that is the target position from the storage unit to the empty bobbin by the supply device. To supply.

  The yarn winding machine includes a storage unit that stores an empty bobbin supplied from a bobbin setting device. Thereby, since the yarn winding machine can supply the empty bobbin from the storage unit to the second holding unit, it is possible to improve the operation efficiency.

  A yarn winding machine according to another aspect of the present invention is held by any of the above bobbin holding devices, a conveyor that conveys an empty bobbin, a second holding unit that rotatably holds an empty bobbin, and a second holding unit. A plurality of yarn winding units each including a winding device that winds a yarn around an empty bobbin to form a package, and a bobbin holding device is provided in each of the plurality of yarn winding units.

  In this yarn winding machine, a bobbin holding device is provided in each of the plurality of yarn winding units. Thereby, the yarn winding machine can receive the bobbin from the conveyor when an empty bobbin is required in each yarn winding unit.

  According to the present invention, an empty bobbin conveyed by a conveyor can be directly held.

It is a side view of the spinning machine which is a yarn winding machine concerning one embodiment. It is a figure which shows the structure of a spinning machine. (A) is a figure which shows the 1st state of a bobbin holding device, (b) is a figure which shows the 2nd state of a bobbin holding device. It is a figure which shows operation | movement of a bobbin holding | maintenance apparatus. It is a figure which shows operation | movement of a bobbin holding | maintenance apparatus.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

  As shown in FIGS. 1 and 2, a spinning machine (yarn winding machine) 10 includes a plurality of spinning units (yarn winding units) 1, a bobbin supply device 60, a belt conveyor 70, and a doffing device (bobbin set). Device) 100 and a machine base control device (control unit) 140. The plurality of spinning units 1 are arranged so as to be adjacent along a predetermined direction. As shown in FIG. 2, the machine base control device 140 collectively manages the spinning units 1, the bobbin supply device 60, the belt conveyor 70, and the doffing device 100.

  As shown in FIG. 1, the spinning unit 1 generates a yarn Y by spinning the fiber bundle F sent from the draft device 2 by the spinning device 3, and winds the generated yarn Y by the winding device 4. To form a package P. In the present embodiment, the upstream in the traveling direction of the yarn Y is simply referred to as upstream, and the downstream in the traveling direction of the yarn Y is simply referred to as downstream. In the present embodiment, the side where the operator passage is located with respect to the spinning machine 10 (the right side in FIG. 1) is referred to as the front side, and the opposite side is referred to as the rear side. The upper side in the machine base height direction is simply referred to as the upper side, and the lower side in the machine base height direction is simply referred to as the lower side.

  The spinning unit 1 is provided with a draft device 2, a spinning device 3, a yarn storage device 5, a yarn monitoring device 6, and a winding device 4 in order from the upstream side along the traveling path of the yarn Y. The spinning unit 1 has a yarn joining device 9. Each part of the spinning unit 1 is controlled by a unit controller provided for each spinning unit 1.

  The draft device 2 drafts the sliver S to generate a fiber bundle F. The draft device 2 includes, in order from the upstream side, a back roller pair 21, a third roller pair 22, a middle roller pair 23 on which an apron belt 25 is hung, and a front roller pair 24. Each roller pair 21, 22, 23, and 24 sends the sliver S supplied from a can (not shown) from the upstream side to the downstream side while drafting.

  As shown in FIG. 1, the spinning device 3 generates a yarn Y by spinning the fiber bundle F generated by the draft device 2 with a swirling air flow. Specifically (however, not shown), the spinning device 3 includes a fiber guide portion, a swirl flow generation nozzle, and a hollow guide shaft body. The fiber guide unit guides the fiber bundle F sent from the draft device 2 to the spinning chamber in the spinning device 3. The swirl flow generating nozzle is disposed around the path of the fiber bundle F and generates a swirl air flow in the spinning chamber. Thereby, in the spinning chamber, the fiber end is reversed and swirled. The hollow guide shaft body guides the spun yarn Y from the spinning chamber to the outside of the spinning device 3. The yarn Y generated by the spinning device 3 is nipped by the delivery roller 7 and the nip roller 8 and sent out to the yarn storage device 5 side. The delivery roller 7 and the nip roller 8 may be omitted, and the yarn Y may be pulled out from the spinning device 3 by the yarn storage device 5.

  The yarn storage device 5 includes a yarn storage roller 51, a drive motor 52, and a yarn hooking member 53. The drive motor 52 rotates the yarn accumulating roller 51. The yarn hooking member 53 winds the yarn Y around the yarn accumulating roller 51. The yarn storage device 5 temporarily stores the yarn Y by winding the yarn Y around the yarn storage roller 51.

  The yarn hooking member 53 is supported so as to be rotatable relative to the yarn accumulating roller 51. A permanent magnet is attached to one of the yarn accumulating roller 51 and the yarn hooking member 53, and a magnetic hysteresis material is attached to the other. By these magnetic means, torque is generated against the yarn hooking member 53 rotating relative to the yarn accumulating roller 51. Therefore, the yarn hooking member 53 rotates relative to the yarn accumulating roller 51 only when a force exceeding the torque is applied to the yarn hooking member 53 (when a tension of a predetermined value or more is applied to the yarn Y). The yarn Y wound around the yarn accumulating roller 51 is unwound. When a force exceeding the torque is not applied to the yarn hooking member 53, the yarn hooking member 53 rotates integrally with the yarn accumulating roller 51, and the yarn Y is wound around the yarn accumulating roller 51.

  In this way, the yarn storage device 5 unwinds the yarn Y when the tension of the yarn Y increases on the downstream side of the yarn storage device 5, and the tension of the yarn Y decreases on the downstream side of the yarn storage device 5 (thread Y). The thread Y is stored). Thereby, the yarn accumulating device 5 can eliminate the slackness of the yarn Y and apply an appropriate tension to the yarn Y. Furthermore, the yarn storage device 5 absorbs fluctuations in the tension of the yarn Y on the downstream side of the yarn storage device 5, and the fluctuations in the tension affect the traveling of the yarn Y on the upstream side of the yarn storage device 5. Can be prevented.

  A first guide 11 is disposed in the vicinity of the upstream side of the yarn storage device 5. The first guide 11 guides the yarn Y to the yarn storage device 5. A pair of second guide 12 and third guide 13 are disposed in the vicinity of the downstream side of the yarn accumulating device 5. The pair of second guide 12 and third guide 13 stabilize the behavior of the yarn Y unwound from the yarn storage device 5. The first guide 11 and the second guide 12 are movable to draw the yarn Y to the yarn storage device 5 when performing yarn splicing or the like.

  The winding device 4 winds the yarn Y generated by the spinning device 3 to form a package P. The winding device 4 includes a cradle arm 41, a winding drum 42, and a yarn drawing device 43.

  The cradle arm (second holding unit) 41 rotatably holds a bobbin T around which the yarn Y is wound. The cradle arm 41 is turnable upward and downward about the base end, and is urged to rotate downward about the base end. Accordingly, the cradle arm 41 can bring the package P into contact with the winding drum 42 with an appropriate pressure even when the yarn Y is wound around the bobbin T and the diameter of the package P gradually increases.

  The winding drum 42 rotates while being in contact with the outer peripheral surface of the bobbin T or the package P when a driving force of a driving motor (not shown) is transmitted. A traverse groove for traversing the yarn Y with a predetermined width is formed on the outer peripheral surface of the winding drum 42. Thus, the winding drum 42 can form the package P by winding the yarn Y around the bobbin T while traversing the yarn Y.

  The yarn drawing device 43 is disposed in the vicinity of the upstream side of the winding drum 42. When performing yarn splicing or the like, the yarn drawing device 43 generates an air flow so as to flow downward along the outer peripheral surface of the package P. Thereby, the yarn drawing device 43 can draw the yarn Y from the package P and guide the yarn Y from the package P to the fourth guide 16 disposed in the vicinity of the upstream side of the yarn drawing device 43. As a result, the downstream-side yarn conveying section 93 of the yarn joining device 9 described later rotates upward about the base end portion 93a, thereby positioning the distal end portion 93b in the vicinity of the upstream side of the fourth guide 16 and sucking. The yarn Y from the package P can be captured by the air flow.

  The yarn monitoring device 6 monitors the thickness of the traveling yarn Y using an optical sensor. The yarn monitoring device 6 transmits a yarn defect detection signal to the unit controller when a yarn defect of the yarn Y (a portion where the thickness of the yarn Y is abnormal) is detected. When the unit controller receives the yarn defect detection signal, the unit controller operates the cutter 14 disposed in the vicinity of the upstream side of the yarn monitoring device 6 and causes the cutter 14 to cut the yarn Y. The yarn monitoring device 6 is not limited to an optical sensor, and may be, for example, a capacitive sensor. The yarn monitoring device 6 may detect foreign matter contained in the yarn Y. Instead of providing the cutter 14 separately from the yarn monitoring device 6, the yarn monitoring device 6 may include a cutter. Alternatively, the cutter 14 may be omitted, and the spinning operation by the spinning device 3 may be stopped to cut the yarn Y.

  As shown in FIG. 1, the yarn joining device 9 performs yarn joining of the yarn Y in the spinning unit 1. That is, when the yarn Y in the spinning unit 1 is separated between the spinning device 3 and the package P for some reason, the yarn joining device 9 receives the signal from the spinning device 3 at the yarn joining position in the spinning unit 1. The yarn Y and the yarn Y from the package P are joined.

  The yarn joining device 9 includes a yarn joining portion 91, an upstream yarn conveyance portion 92, a downstream yarn conveyance portion 93, and a carriage body 97. The carriage body 97 is movable along a pair of rails 18a and 18b.

  The yarn joining section 91 is a splicer device that performs yarn joining in the spinning unit 1 by twisting the yarn Y from the spinning device 3 and the yarn Y from the package P by a swirling air flow. The yarn joining portion 91 is not limited to a splicer device, and may be, for example, a mechanical knotter.

  The upstream yarn conveyance unit 92 conveys the yarn Y from the spinning device 3 to the yarn joining unit 91 when the yarn joining unit 91 performs yarn joining in the spinning unit 1. The upstream-side yarn conveyance unit 92 is configured in a pipe shape, and is attached to the carriage body 97 so as to be rotatable upward and downward about the base end portion 92a. The upstream-side yarn conveyance unit 92 is rotated downward about the base end portion 92a, thereby positioning the tip end portion 92b in the vicinity of the downstream side of the delivery roller 7 and the nip roller 8, and from the spinning device 3 by the suction air flow. Catch the yarn Y. Then, the upstream-side yarn conveyance unit 92 conveys the yarn Y from the spinning device 3 to the yarn joining unit 91 by rotating upward about the base end portion 92a.

  The downstream-side yarn conveyance unit 93 conveys the yarn Y on the package P side to the yarn joining unit 91 when the yarn joining unit 91 performs yarn joining in each of the first spinning unit 1a and the second spinning unit 1b. The downstream-side yarn conveyance unit 93 is configured in a pipe shape, and is attached to the carriage body 97 so as to be rotatable upward and downward about the base end portion 93a. The downstream-side yarn conveyance unit 93 is rotated upward about the base end portion 93a, thereby positioning the tip end portion 93b in the vicinity of the upstream side of the winding device 4, and the yarn Y from the package P by the suction air flow. To capture. The downstream-side yarn conveyance unit 93 conveys the yarn Y from the package P to the yarn joining portion 91 by rotating downward about the base end portion 93a.

  The bobbin supply device 60 (not shown in FIG. 1) supplies a bobbin (empty bobbin) T. The bobbin supply device 60 is disposed on one end side of the machine base in the direction in which the plurality of spinning units 1 are arranged, for example. The bobbin supply device 60 stores a plurality of bobbins T. The bobbin supply device 60 supplies empty bobbins to the belt conveyor 70 based on a command from the machine base control device 140. When supplying the bobbin T to the belt conveyor 70, the bobbin supply device 60 supplies the bobbin T in a predetermined direction. The bobbin T has a substantially truncated cone shape (cone shape) that tapers from one end (large diameter end) side to the other end (small diameter end) side, and has a hollow structure. As shown in FIG. 3, the bobbin supply device 60 supplies the bobbin T to the belt conveyor 70 so that the bobbin T is conveyed with one end side (the one having the larger diameter) in front in the conveyance direction of the belt conveyor 70. To do.

  The belt conveyor 70 conveys the bobbin T supplied from the bobbin supply device 60. The belt conveyor 70 extends along the direction in which the plurality of spinning units 1 are arranged side by side, and is arranged on the upper rear side of the spinning machine 10 in the machine base. As shown in FIG. 1, the belt conveyor 70 is provided with a pair of guides 72a and 72b for preventing the bobbin T from falling. When the bobbin T is supplied from the bobbin supply device 60, the belt conveyor 70 conveys the bobbin T to the stop position of the doffing device 100. The belt conveyor 70 operates based on a command from the machine base control device 140.

  As shown in FIG. 1, the doffing device 100 travels above the spinning unit 1 along the rail R arranged on the machine base and stops at the position of the spinning unit 1 of the fully packaged package P. Then do the doffing work. The rail R extends along the direction in which the spinning units 1 are arranged side by side, and is arranged on the upper side on the front side of the spinning machine 10. The doffing device 100 includes a bobbin holding device 110 and a bobbin exchanging device 130. The bobbin holding device 110 and the bobbin exchanging device 130 operate based on a command from the machine base control device 140.

  The bobbin holding device 110 receives and holds the bobbin T conveyed by the belt conveyor 70 and supplies the bobbin T to the bobbin exchanging device 130. As shown in FIGS. 3 to 5, the bobbin holding device 110 includes a receiving part 112, a bobbin holding part (first holding part) 114, an air cylinder (switching part) 116, and an arm part (moving part) 118. And a drive unit (moving unit) 120.

  The receiving part 112 receives the bobbin T conveyed by the belt conveyor 70. The receiving portion 112 is a plate-like member, and has a receiving surface 112s that receives the bobbin T (contacts the bobbin T). The receiving surface 112s is larger than the diameter of the bobbin T. As shown in FIG. 3, when the bobbin T is conveyed by the belt conveyor 70, the receiving unit 112 is arranged on the belt conveyor 70 so that the surface direction of the receiving surface 112 s intersects (perpendicular to) the conveying direction. Wait at.

  The bobbin holding unit 114 directly holds the bobbin T. The bobbin holding portion 114 is provided on the receiving surface 112 s side of the receiving portion 112. The bobbin holding part 114 is located in the internal space K of the bobbin T and holds the bobbin T from the inside. The bobbin holding portion 114 includes a pair of holding portions 114a and 114b, an elastic portion 114c, and a displacement portion 114d. The holding portions 114a and 114b are columnar members, for example, and are disposed on the edge side of the receiving portion 112 on the receiving surface 112s side. The holding portions 114a and 114b are provided to extend substantially parallel to each other at a predetermined interval in the receiving portion 112. The holding portions 114a and 114b are provided in the receiving portion 112 so as to be movable in a direction approaching and separating from each other. When the pair of holding portions 114a and 114b move in a direction approaching each other, the movement is limited so that the holding portions 114a and 114b cannot move any more when the distance is equal to or less than a predetermined interval. The holding portions 114a and 114b may be supported by the receiving portion 112 so as to be swingable, and may swing around a base end side axis. Even in this configuration, the pair of holding portions are provided so as to be movable in a direction toward each other and a direction away from each other.

  The elastic part 114c is attached to the holding parts 114a and 114b. The elastic part 114c is, for example, rubber, a coil spring or the like, and has an annular shape. The elastic portion 114c is disposed so as to surround the holding portions 114a and 114b on the base end side of the holding portions 114a and 114b. The elastic portion 114c biases the pair of holding portions 114a and 114b in a direction approaching each other.

  The displacement part 114d is disposed between the pair of holding parts 114a and 114b. The displacement portion 114d has, for example, a substantially truncated cone shape. The displacement part 114d is arranged so that the diameter decreases toward the receiving part 112. The piston rod 116a of the air cylinder 116 is connected to the displacement portion 114d. The displacement portion 114d changes between a position away from the receiving portion 112 (FIG. 3A) and a position close to the receiving portion 112 (FIG. 3B) in accordance with the movement of the piston rod 116a. When the displacement portion 114d is moved to the receiving portion 112, the diameter gradually increases with respect to the pair of holding portions 114a and 114b contacting the side surface of the displacement portion 114d, and the pair of holding portions 114a and 114b are separated from each other. Move to.

  In the bobbin holding portion 114, the bobbin T is held and released by the holding portions 114a and 114b by the displacement of the displacement portion 114d. As shown in FIG. 3A, in the bobbin holding portion 114, when the displacement portion 114d is located at a position separated from the receiving portion 112, the pair of holding portions 114a and 114b are predetermined by the elastic portion 114c. Located at the position (initial position), the inner surface Ts of the bobbin T and the pair of holding portions 114a and 114b are separated (first state). In this case, the bobbin holding unit 114 does not hold the bobbin T. In the bobbin holding portion 114, as shown in FIG. 3B, when the displacement portion 114d is positioned close to the receiving portion 112, the pair of holding portions 114a and 114b are displaced in a direction away from each other. The inner surface Ts of the bobbin T is in contact with the pair of holding portions 114a and 114b (second state). In this case, the bobbin holding unit 114 holds the bobbin T. The bobbin holding portion 114 is switched between a first state when the bobbin T is not held and a second state when the bobbin T is held by the operation of the piston rod 116a.

  The arm part 118 is connected to the receiving part 112 and supports the receiving part 112 and the bobbin holding part 114. The arm part 118 is a columnar member, for example. A receiving part 112 is connected to one end of the arm part 118, and a driving part 120 is connected to the other end. As shown in FIG. 4, the arm portion 118 is rotated around a shaft 118a by a drive portion 120 (for example, a motor). By this rotation of the arm portion 118, the receiving portion 112 and the bobbin holding portion 114 deliver the bobbin T to the first position where the bobbin T conveyed by the belt conveyor 70 is received by the receiving portion 112 and the gripper 132 described later. Move together to a second position (a position different from the first position).

  As shown in FIG. 5, the arm portion 118 is rotated to a position where the bobbin T is transferred to the gripper 132, and the bobbin T is gripped by the gripper 132 and the bobbin holding portion 114 holds the bobbin T. Is released (the bobbin holding portion 114 is set to the first state), the drive portion (not shown) moves away from the bobbin T (gripper 132) around the shaft 118b (right side in FIG. 5). The bobbin holding part 114 is moved (swinged).

  Next, the operation of the bobbin holding device 110 having the above configuration will be described. When the bobbin T is supplied from the bobbin supply device 60, the bobbin holding device 110 stands by with the receiving portion 112 positioned on the belt conveyor 70 as shown in FIG. At this time, the displacement portion 114d of the bobbin holding portion 114 is positioned away from the receiving portion 112, and the bobbin holding portion 114 is in the first state when the bobbin T is not held. When the bobbin T is conveyed by the belt conveyor 70, the bobbin holding device 110 receives the bobbin T at the receiving unit 112. At this time, the bobbin holding portion 114 is located in the internal space K of the bobbin T.

  The bobbin holding device 110 contracts the piston rod 116a of the air cylinder 116 when the bobbin holding portion 114 is positioned in the internal space K of the bobbin T. Then, the bobbin holding part 114 is set to the second state when holding the bobbin T. Accordingly, the pair of holding portions 114 a and 114 b of the bobbin holding portion 114 abuts on the inner surface Ts of the bobbin T, and the bobbin holding portion 114 holds the bobbin T. When the bobbin holding unit 114 holds the bobbin T, the bobbin holding device 110 rotates the arm unit 118 by the driving unit 120 so that the receiving unit 112 and the bobbin holding unit 114 are moved as shown in FIGS. The first position on the belt conveyor 70 is moved to the second position. When the bobbin T is gripped by the gripper 132 in the second position, the bobbin holding device 110 releases the holding of the bobbin T by the bobbin holding part 114. When the bobbin holding device 110 releases the holding of the bobbin T, as shown in FIG. 5, the driving unit 120 swings the arm unit 118 about the shaft 118 b to move the bobbin holding unit 114 from the internal space K of the bobbin T. Evacuate.

  As shown in FIG. 1, the bobbin exchange device 130 includes a gripper (supply device) 132. The gripper 132 receives the bobbin T held by the bobbin holding device 110 and sets the bobbin T on the cradle arm 41. The gripper 132 is provided so as to be pivotable about the shaft 118b, moves downward to move to the second position of the bobbin holding portion 114 of the bobbin holding device 110, and is provided at the tip of the chuck claw. The bobbin T is gripped at 132b. The gripper 132 is further rotated downward from the position where the bobbin T is received from the bobbin holding portion 114, thereby placing the bobbin T at a predetermined position (target position) of the cradle arm 41.

  In addition to the gripper 132, the bobbin exchanging device 130 includes a yarn catching device, an opener, and a yarn shifting lever (not shown). The yarn catching device raises the yarn Y to the upper side of the winding drum 42 and interposes it between the cradle arms 41. The opener abuts on a cradle lever (not shown) provided on the cradle arm 41 and opens and closes the cradle arm 41 via the cradle lever, thereby enabling the doffing of the package P and the mounting of the bobbin T. The yarn pulling lever pulls the yarn Y pulled up by the yarn catching device so as to be sandwiched between the large diameter end of the bobbin T and a bobbin holder (not shown).

  Then, operation | movement of the doffing apparatus 100 is demonstrated.

  When the package P rotated at high speed by the winding drum 42 is fully wound, the spinning unit 1 operates the cutter 14 to cut the yarn Y, and ends the winding operation of the package P. Simultaneously with the operation of the spinning unit 1, the doffing device 100 travels along the rail R and stops just above the package P of the spinning unit 1 that has been fully wound. Further, the bobbin supply device 60 supplies the bobbin T to the belt conveyor 70.

  When the doffing device 100 stops just above the full package P, the bobbin changer 130 of the doffing device 100 opens the cradle arm 41 and removes the package P by turning the opener (doffing) To do). The package P is placed on a transport device (not shown) via a package guide (not shown) and is carried to a predetermined place.

  The bobbin exchanging device 130 opens the cradle arm 41 again with the opener after removing the package P from the cradle arm 41 (doffing). Here, the yarn catching device of the bobbin exchanging device 130 supplements the yarn Y spun from the spinning device 3 and pulls the yarn Y up to the vicinity of the winding device 4. The bobbin exchanging device 130 guides the yarn Y to the bunch winding position by the yarn shifting lever. The bobbin exchanging device 130 rotates the gripper 132 toward the winding drum 42 when the yarn gathering lever brings the yarn Y to the bunch winding position. When the bobbin exchanging device 130 pulls the yarn Y to the vicinity of the winding device 4, the seed yarn is pulled out from the seed yarn bobbin (not shown) held by the bobbin exchanging device 130, and the seed yarn and the yarn from the spinning device 3 are drawn. Y is joined by the yarn joining portion 91, and the yarn catching device of the bobbin exchanging device 130 catches the yarn Y and pulls the yarn Y to the vicinity of the winding device 4.

  As shown in FIG. 3, when the bobbin holding device 110 of the doffing device 100 receives the bobbin T conveyed by the belt conveyor 70 at the first position, the bobbin holding unit 114 holds the bobbin T. As shown in FIG. 5, the bobbin holding portion 114 is positioned at the second position (delivery position) where the bobbin T is delivered to the gripper 132. When the bobbin T is gripped by the chuck claw 132b of the gripper 132 at the delivery position, the bobbin holding device 110 retracts the bobbin holding part 114 from the internal space K of the bobbin T as shown in FIG.

  When the bobbin T is gripped by the gripper 132, the machine base control device 140 sends a command to the bobbin supply device 60 to supply a new bobbin T to the belt conveyor 70. Then, the machine base control device 140 sends a command to the bobbin holding device 110 so as to hold the bobbin T newly conveyed by the belt conveyor 70. Based on this command, the bobbin holding device 110 receives a new bobbin T and holds the bobbin T. Thus, the bobbin holding device 110 can deliver the held bobbin T to the gripper 132 at the next doffing.

  After the gripper 132 grips the bobbin T held by the bobbin holding device 110, the gripper 132 places the bobbin T between the bobbin holders of the cradle arm 41 opened by the opener. The bobbin changer 130 closes the cradle arm 41 in a state where the bobbin T is in contact with the take-up drum 42. As a result, the bobbin T is rotatably held by the bobbin holder of the cradle arm 41. As a result, the yarn Y is sandwiched between the large-diameter end of the bobbin T and the bobbin holder, so that bunch winding is possible.

  When the series of operations from the doffing of the package P to the mounting of the bobbin T by the doffing device 100 is completed, the spinning unit 1 performs bunch winding and then winds the yarn Y in the axial direction of the bobbin T by the winding drum 42. The bobbin T is rotated at a high speed while traversing and winding of the package P is started.

  As described above, the bobbin holding device 110 of the spinning machine 10 according to the present embodiment receives the bobbin T conveyed by the belt conveyor 70 by the receiving unit 112 and directly holds the bobbin T by the bobbin holding unit 114. Thereby, the bobbin holding device 110 can directly hold the bobbin T conveyed by the belt conveyor 70. In addition, the bobbin holding device 110 has the receiving part 112 and the bobbin holding part 114 in a first position where the arm part 118 and the driving part 120 receive the bobbin T and a second position different from the first position. Move them together. Accordingly, the bobbin holding device 110 can directly supply the bobbin T to the gripper 132 by moving the bobbin holding unit 114 to the second position where the bobbin T is supplied to the gripper 132 by the arm unit 118 and the driving unit 120. Thereby, since the spinning machine 10 does not need to be separately provided with the structure which receives the bobbin T, and the structure which moves the bobbin T from the belt conveyor 70, it can simplify a structure.

  In the present embodiment, the bobbin holding portion 114 is located in the internal space K of the hollow bobbin T and holds the bobbin T from the inside of the bobbin T. The bobbin T is formed in a cylindrical shape with, for example, paper. Therefore, if the bobbin T is gripped from the outer peripheral surface side, the bobbin T may be crushed. Therefore, the bobbin holding part 114 is located inside the bobbin T and holds the bobbin T. The bobbin T has strength against the force applied from the inside. Therefore, the bobbin holding part 114 can hold the bobbin T without crushing. Further, normally, when the bobbin T is conveyed by the belt conveyor 70, the bobbin T is conveyed in a collapsed state (a state where at least a part of the outer peripheral surface of the bobbin T is in contact with the belt conveyor 70). Therefore, the bobbin holding device 110 can receive the end portion (end surface) of the bobbin T by the receiving portion 112, and at the same time, can position the bobbin holding portion 114 in the internal space K of the bobbin T.

  In the present embodiment, the bobbin holding device 110 includes an air cylinder 116 that switches the bobbin holding portion 114 between a first state when the bobbin T is not held and a second state when the bobbin T is held. Yes. The bobbin holding portion 114 does not contact the inner surface Ts of the bobbin T in the first state, and contacts the inner surface Ts of the bobbin T in the second state. As described above, the bobbin holding device 110 can hold and release the bobbin T by switching the state of the bobbin holding portion 114 by the air cylinder 116.

  In this embodiment, the machine base control device 140 supplies another bobbin T to which the bobbin holding portion 114 is conveyed by the belt conveyor 70 when the bobbin T is supplied to the cradle arm 41 of the winding device 4 by the gripper 132. Hold. Thus, since the spinning machine 10 performs two operations simultaneously, it is possible to improve the operation efficiency. Further, the spinning machine 10 can immediately deliver the bobbin T held by the bobbin holding unit 114 to the gripper 132 during the next doffing operation. Therefore, the spinning machine 10 can quickly perform the doffing operation.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the spinning machine 10 is described as an example of the yarn winding machine, but the yarn winding machine may be an automatic winder.

  In the above embodiment, the configuration in which the bobbin holding device 110 is provided in the doffing device 100 has been described as an example, but each spinning unit 1 may be provided with the bobbin holding device 110.

  In the above embodiment, the air cylinder 116 has been described as an example of the switching unit of the bobbin holding device 110. However, the switching unit is not limited to the air cylinder and may be another mechanism.

  Although the bobbin T is gripped by the gripper 132 and the bobbin holding part 114 releases the holding of the bobbin T in the above embodiment, the configuration in which the bobbin holding part 114 is retracted from the internal space K of the bobbin T has been described as an example. The gripper 132 may be configured to retract the bobbin holding portion 114 from the internal space K of the bobbin T by moving the bobbin T in the direction of extracting the bobbin T from the bobbin holding portion 114.

  In the above embodiment, the configuration in which the bobbin holding device 110 receives a new bobbin T and sets the bobbin T on the cradle arm 41 when doffing is described as an example. The reception may be performed when the doffing is not performed, that is, during standby.

  In the above embodiment, the configuration in which the bobbin holding unit 114 is located in the internal space K of the bobbin T and holds the bobbin T has been described as an example. However, the bobbin T holding method is not limited to this, and the bobbin T is directly held. Any configuration can be used.

  In the above embodiment, the configuration in which the bobbin T held by the bobbin holding device 110 is directly delivered to the gripper 132 of the bobbin changing device 130 has been described as an example, but the bobbin holding device 110 is provided in each spinning unit 1. The bobbin T may be delivered to a given bobbin stocker (storage unit). In this case, the gripper 132 of the bobbin exchange device 130 acquires the bobbin T from the bobbin stocker. Thereby, in the yarn winding machine, since the bobbin can be supplied from the bobbin stocker to the cradle arm, the operation efficiency can be improved. Further, the bobbin holding device 110 may include a bobbin stocker (storage unit).

  In the above embodiment, the configuration in which the fully packaged package P is removed from the cradle arm 41 and conveyed in the doffing device 100 has been described as an example, but the doffing device 100 has only a function of replacing the bobbin T. Also good.

  In the above embodiment, the configuration in which the bobbin T has a truncated cone shape (cone shape) has been described as an example. However, the shape of the bobbin T may be, for example, a cylindrical shape.

  In the embodiment described above, the bobbin T is made of paper, but the bobbin T may be formed of a material such as plastic.

  DESCRIPTION OF SYMBOLS 1 ... Spinning unit (yarn winding machine), 4 ... Winding device, 41 ... Cradle arm (second holding part), 100 ... Doffing device, 110 ... Bobbin holding device, 112 ... Receiving part, 114 ... Bobbin holding part ( (First holding unit), 116 ... air cylinder (switching unit), 132 ... gripper (supply device), K ... internal space, P ... package, T ... bobbin (empty bobbin).

Claims (11)

A receiving part for receiving an empty bobbin conveyed by the conveyor;
A first holding part for directly holding the empty bobbin;
The receiving part and the first holding part are moved together between a first position where the empty bobbin conveyed by the conveyor is received by the receiving part and a second position different from the first position. A bobbin holding device, comprising: a moving unit to be moved. A receiving part for receiving an empty bobbin conveyed by the conveyor;
A bobbin holding device, comprising: a first holding unit that is provided in the receiving unit and directly holds the empty bobbin.   A moving unit configured to move the first holding unit between a first position where the empty bobbin conveyed by the conveyor is received by the receiving unit and a second position different from the first position; The bobbin holding device according to claim 2.   The bobbin holding device according to any one of claims 1 to 3, wherein the first holding unit is located in an internal space of the hollow empty bobbin and holds the empty bobbin from the inside of the empty bobbin. A switching unit that switches the first holding unit between a first state when the empty bobbin is not held and a second state when the empty bobbin is held;
The first holding part is
Not in contact with the inside of the empty bobbin in the first state;
The bobbin holding device according to claim 4, wherein the bobbin holding device is in contact with the inside of the empty bobbin in the second state. The moving unit is
An arm portion for supporting the receiving portion and the first holding portion;
The bobbin holding device according to claim 1, further comprising a drive unit that drives the arm unit. The bobbin holding device according to any one of claims 1 to 6,
A bobbin setting device comprising: a supply device that receives the empty bobbin from the bobbin holding device and supplies the empty bobbin to a target position. A bobbin setting device according to claim 7;
The conveyor for conveying the empty bobbins;
A plurality of yarn winding units each including: a second holding portion that rotatably holds the empty bobbin; and a winding device that winds a yarn around the empty bobbin held by the second holding portion to form a package; With
The bobbin setting device supplies the empty bobbin to the second holding portion at the target position by the supply device. A control unit for controlling the operation of the bobbin setting device;
The said control part makes the said 1st holding | maintenance part hold | maintain another empty bobbin conveyed with the said conveyor, when supplying the said empty bobbin to the said 2nd holding | maintenance part by the said supply apparatus. Yarn winder. A bobbin setting device according to claim 7;
The conveyor for conveying the empty bobbins;
A plurality of yarn winding units each including: a second holding portion that rotatably holds the empty bobbin; and a winding device that winds a yarn around the empty bobbin held by the second holding portion to form a package; ,
A storage unit provided corresponding to each of the plurality of yarn winding units, and storing the empty bobbin supplied from the bobbin setting device,
The bobbin setting device is
The empty bobbin is moved from the conveyor to the storage unit by the moving unit of the bobbin holding device,
A yarn winding machine that supplies the empty bobbin from the storage unit to the second holding unit at the target position by the supply device. The bobbin holding device according to any one of claims 1 to 6,
A conveyor for conveying the empty bobbins;
A plurality of yarn winding units each including: a second holding portion that rotatably holds the empty bobbin; and a winding device that winds a yarn around the empty bobbin held by the second holding portion to form a package; With
The bobbin holding device is a yarn winding machine provided in each of the plurality of yarn winding units.

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