winding device

Abstract

To prevent the height dimension of the winding device from increasing.SOLUTION: A winding device 21 includes: a cradle arm 30; a package storage section 50 located on one side bordering a vertical plane F passing through an axis center of a bobbin holder 70 supported by the cradle arm 30 in a released position; a stocker 60 located on the other side bordering the vertical plane F; and a moving mechanism 80 that moves the stocker 60 between a standby position and a supply position. The moving mechanism 80 moves the stocker 60 linearly between the standby position and the supply position.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a winding device.

Background Art

[0002] Patent Document 1 discloses a false twisting machine having a false twisting device that imparts a false twist to a yarn supplied from a yarn feeding unit, and a winding device that winds the yarn with the false twist. The winding device has a cradle that rotatably supports a set of bobbin holders, and winds the yarn around a bobbin (paper tube in Patent Document 1) attached to the bobbin holder to form a package.

[0003] When a full-wound package is formed in such a winding device, the package is removed from the cradle and a new bobbin is supplied to the cradle. Patent Document 2 describes a winding device (doffing device in Patent Document 2) having a package storage unit (guide rail in Patent Document 2) that supports the package removed from the cradle, and a stocker (paper tube stocker in Patent Document 2) that houses a plurality of empty bobbins to be supplied to the cradle in a lined-up state.

[0004] In the winding device of Patent Document 2, the stocker is swingably supported by a rotating shaft provided below the stocker via a support bracket. The stocker is located at a standby position above the package storage unit (the position shown in FIG. 2) during yarn winding, and when supplying a bobbin to the cradle, it swings about the rotating shaft to move to a supply position below the standby position and on the right side of the paper surface of FIG. 2 in Patent Document 2 (hereinafter simply referred to as the right side; also, the left side of the paper surface is simply referred to as the left side).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

[0006] In the apparatus of Patent Document 2, as shown in Figure 2, when the stocker is in the standby position, the support bracket supporting the stocker is tilted diagonally to the upper left from the axis of rotation. On the other hand, when the stocker is in the supply position, the support bracket swings clockwise from the state shown in Figure 2, and the support bracket is tilted diagonally to the upper right from the axis of rotation. In other words, as the stocker moves from the standby position to the supply position, the support bracket goes from being tilted diagonally to the upper left to becoming vertical, and then to being tilted diagonally to the upper right. As a result, the stocker connected to the support bracket passes above both the standby position and the supply position as it moves from the standby position to the supply position. For this reason, it is necessary to secure space above the winding device so that the stocker does not interfere with other components during the process of moving from the standby position to the supply position. However, securing such space increases the effective height dimension of the winding device.

[0007] The present invention aims to suppress the increase in the height dimension of the winding device. [Means for solving the problem]

[0008] The winding device of the present invention comprises a cradle capable of rotatably supporting a bobbin holder, forming a package when thread is wound onto a bobbin gripped by the bobbin holder, and releasing the package from the grip of the bobbin holder; a package storage section for storing the package released from the cradle; a stocker for storing the bobbin to be supplied to the cradle; and a moving mechanism for moving the stocker between a standby position and a supply position for supplying the bobbin to the cradle in a release position where the bobbin holder releases its grip on the package, wherein the package storage section is located on one side of a vertical plane passing through the axis of the bobbin holder supported by the cradle in the release position, the stocker in the standby position is located on the other side of the vertical plane, and the moving mechanism moves the stocker linearly between the standby position and the supply position.

[0009] According to the present invention, the stocker can move from a standby position to a supply position by moving in a straight line. Therefore, as the stocker moves from the standby position to the supply position, it does not pass above both the standby position and the supply position, and there is no need to secure additional space above the winding device. However, even when the stocker is moved in a straight line, if the stocker is positioned above the package storage section, as in Patent Document 2, for example, the position of the stocker becomes high, and there is a limit to how much the height of the winding device can be reduced. This is because the package released from the cradle passes below the stocker and is sent to the package storage section, so the distance between the stocker and the package storage section needs to be large enough for the package to pass through. In this regard, the present invention positions the stocker on the opposite side of the package storage section with respect to the vertical plane. Therefore, it is possible to position the stocker at a low position while ensuring that the stocker does not pass above both the standby position and the supply position, thereby effectively suppressing the height of the winding device.

[0010] In the winding device of the present invention, the front end of the stocker, which is close to the cradle in the open position, is provided with a restricting section that can be switched between a restricting state that prevents the bobbins stored in the stocker from falling out of the stocker and an open state in which the restricting state is released. Preferably, the restricting section is in the open state when the stocker reaches the supply position.

[0011] According to the present invention, until the stocker reaches the supply position, the restricting part prevents the bobbin from falling out of the stocker. Furthermore, since the restricting part is released when the stocker reaches the supply position, the supply of bobbins from the stocker to the cradle is not obstructed by the restricting part. This ensures reliable storage of bobbins by the stocker while appropriately supplying bobbins from the stocker to the cradle.

[0012] In the winding device of the present invention, the stocker has a first rotation axis along the axial direction of the bobbin holder, and the restricting portion has a contact portion that can contact the bobbin holder supported by the cradle in the released position, and it is preferable that as the stocker moves from the standby position to the supply position, the contact portion is pushed against the bobbin holder, causing it to rotate in a first direction around the first rotation axis and switch from the restricted state to the released state, and as the stocker moves from the supply position to the standby position, the contact between the contact portion and the bobbin holder is released, causing it to rotate in a second direction opposite to the first direction around the first rotation axis and switch from the released state to the restricted state.

[0013] According to the present invention, the state of the restricting part can be switched between an open state and a restricted state depending on whether or not the contact portion and the bobbin holder come into contact as the stocker moves. Therefore, a drive source for switching the state of the restricting part is not required.

[0014] In the winding device of the present invention, the stocker has a stopper to which the restricting portion that rotates in the first direction can abut, and when the stocker reaches the supply position, the contact portion is pushed by the bobbin holder, so that the restricting portion that rotates in the first direction comes into contact with the stopper, thereby restricting further rotation in the first direction.

[0015] According to the present invention, the restricting part that rotates in a first direction as the stocker moves is a stopper and Contact restricts further rotation in the first direction. This prevents the contact portion of the restricting part from being further pressed by the bobbin holder, thus restricting further movement of the stocker. This prevents the stocker from moving beyond the supply position and ensures proper feeding of the bobbin from the stocker to the cradle.

[0016] In the winding device of the present invention, it is preferable that the stocker is provided with a second restricting part that prevents the bobbin stored in the stocker from flying out beyond the bobbin holder when the stocker reaches the supply position and the restricting part is in the released state.

[0017] When the stocker moves from the standby position to the supply position, an inertial force acts on the bobbin. Therefore, even after the stocker reaches the supply position, the bobbin attempts to move beyond the cradle, which is in the open position, in the direction in which the stocker is moving. However, when the stocker reaches the supply position, the restricting part is in the open state, so it is not possible to restrict the movement of the bobbin. Therefore, there is a risk that the bobbin stored in the stocker will move beyond the cradle. In this case, the bobbin cannot be properly supplied to the cradle. According to the present invention, since a second restricting part is provided, when the stocker reaches the supply position, it is possible to suppress the movement of the bobbin beyond the cradle, which is in the open position, due to the inertial force. This makes it possible to supply bobbins from the stocker to the cradle more reliably.

[0018] In the winding device of the present invention, among the stockers, the stocker that is close to the cradle in the release position Front end The stocker is provided with a front end support portion that supports the bobbin from below, the front end support portion is capable of taking a restrictive position that prevents the bobbin from falling out of the stocker, and is rotatable about a second rotation axis along the axial direction of the bobbin holder, the stocker further has a biasing member that biases the front end support portion to take the restrictive position, and it is preferable that when the stocker moves from the supply position to the standby position, the front end support portion is pushed by the bobbin supported by the cradle in the released position, and rotates about the second rotation axis against the biasing force of the biasing member to avoid the bobbin.

[0019] In this invention, the presence of a front end support prevents bobbins stored in the stocker from falling out. However, when the stocker attempts to return to its standby position after the bobbin supply from the stocker to the cradle is complete, there is a risk that the front end support, which is intended to prevent the bobbin from falling out, may get caught on the bobbin supported by the cradle, hindering the stocker's movement. According to this invention, when the stocker returns from the supply position to the standby position, the front end support rotates to avoid the bobbin supported by the cradle. This prevents the front end support and the bobbin supported by the cradle from getting caught and hindering the stocker's movement to the standby position. Therefore, the stocker can be smoothly returned to the standby position after the bobbin has been supplied to the cradle, and the subsequent thread winding operation can be performed quickly. [Brief explanation of the drawing]

[0020] [Figure 1] This is a schematic side view of the false twisting machine according to this embodiment. [Figure 2] This is a schematic diagram showing the configuration of a winding device. [Figure 3]It is a schematic diagram of a winding device when the cradle arm moves to the release position. [Figure 4] It is a schematic diagram of a winding device when the stocker moves to the supply position. [Figure 5] It is a partial perspective view showing the configuration of the front part of the stocker. [Figure 6] It is a view showing the stocker on the way from the standby position to the supply position. [Figure 7] It is a view showing the stocker when it reaches the supply position.

Embodiments for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0022] (Overall Configuration of False Twisting Machine 1) FIG. 1 is a side view showing a schematic configuration of a false twisting machine 1 according to the present embodiment. Hereinafter, the direction perpendicular to the paper surface of FIG. 1 is defined as the longitudinal direction of the machine base, and the left-right direction of the paper surface is defined as the width direction of the machine base. The direction perpendicular to both the longitudinal direction and the width direction of the machine base is defined as the vertical direction in which gravity acts. Hereinafter, the above direction terms will be appropriately used for explanation.

[0023] The false twisting machine 1 is configured to be able to perform false twisting on a yarn Y made of synthetic fiber such as nylon (polyamide-based fiber). The false twisting machine 1 includes a yarn feeding unit 2 for feeding the yarn Y, a processing unit 3 for performing false twisting on the yarn Y supplied from the yarn feeding unit 2, and a winding unit 4 for winding the yarn Y processed by the processing unit 3 onto a bobbin Bw. Each component of the yarn feeding unit 2, the processing unit 3, and the winding unit 4 is arranged in a plurality in the longitudinal direction of the machine base perpendicular to the yarn running surface (the paper surface of FIG. 1) where the yarn path from the yarn feeding unit 2 through the processing unit 3 to the winding unit 4 is arranged.

[0024] (Yarn Feeding Unit 2) The yarn feeding section 2 has a creel stand 7 that holds multiple yarn feeding packages Ps and supplies multiple yarns Y to the processing section 3. The processing section 3 is configured with the following components arranged in order from the upstream side in the yarn travel direction: a first feed roller 11, a twisting guide 12, a first heating device 13, a cooling device 14, a false twist device 15, a second feed roller 16, an entanglement device 17, a third feed roller 18, a second heating device 19, and a fourth feed roller 20. The winding section 4 winds the yarn Y, which has been false twisted in the processing section 3, onto a bobbin Bw using a winding device 21 to form a winding package Pw.

[0025] Furthermore, the false twisting machine 1 has a main machine base 8 and a winding base 9 that are spaced apart in the width direction of the machine base. The main machine base 8 and the winding base 9 extend to approximately the same length in the longitudinal direction of the machine base and are arranged to face each other. The upper part of the main machine base 8 and the upper part of the winding base 9 are connected by a support frame 10. Each device constituting the processing section 3 is mainly attached to the main machine base 8 and the support frame 10. The main machine base 8, the winding base 9 and the support frame 10 form a workspace 22 for the operator to perform tasks such as threading on each device. The thread path is formed so that the thread Y mainly travels around the workspace 22.

[0026] The false twisting machine 1 has a unit unit called a span, which includes a set of main machine tables 8 and winding tables 9 arranged opposite each other. In one span, the devices are arranged so that false twisting can be performed simultaneously on multiple yarns Y running in a line along the longitudinal direction of the machine table. For example, the winding table 9 included in one span is equipped with a total of 16 winding devices 21 in a 4-row, 4-column arrangement. The false twisting machine 1 is configured such that these spans are arranged symmetrically on the left and right sides of the paper with respect to the center line C in the width direction of the main machine table 8 as the axis of symmetry (the main machine table 8 is common to both the left and right spans), and multiple spans are arranged in the longitudinal direction of the machine table.

[0027] (Configuration of the processing section) Next, the components of the processing unit 3 will be described. The first feed roller 11 is for sending the yarn Y supplied from the yarn feeding unit 2 to the first heating device 13. The first feed roller 11 is located above the winding table 9 (see Figure 1). The first feed rollers 11 are arranged in a single row along the longitudinal direction of the machine table.

[0028] The twist-stopping guide 12 is designed to prevent the twist applied to the yarn Y by the false twisting device 15 (described later) from propagating upstream of the twist-stopping guide 12 in the yarn travel direction. The twist-stopping guide 12 is located downstream of the first feed roller 11 in the yarn travel direction and upstream of the first heating device 13 in the yarn travel direction. The twist-stopping guide 12 is provided individually for each of the multiple yarns Y supplied from the yarn feeding section 2 and is arranged in a single row along the longitudinal direction of the machine frame.

[0029] The first heating device 13 is for heating the yarn Y sent from the first feed roller 11 and is installed on the support frame 10 (see Figure 1). Multiple first heating devices 13 are provided for each of the multiple yarns Y supplied from the yarn feeding section 2 and are arranged in a single row in the longitudinal direction of the machine base.

[0030] The cooling device 14 is for cooling the yarn Y heated by the first heating device 13. The cooling device 14 is located downstream of the first heating device 13 in the yarn travel direction and upstream of the false twisting device 15 in the yarn travel direction. Multiple cooling devices 14 are provided for each of the multiple yarns Y supplied from the yarn feeding unit 2, and are arranged in a single row along the longitudinal direction of the machine frame.

[0031] The false twisting device 15 is a device for imparting twist to the yarn Y. The false twisting device 15 is located immediately downstream of the cooling device 14 in the yarn travel direction. Multiple false twisting devices 15 are arranged in the longitudinal direction of the machine frame. For example, 16 false twisting devices 15 are provided in each span.

[0032] The second feed roller 16 is a roller that feeds the yarn Y, which has been twisted by the false twisting device 15, toward the entanglement device 17. The second feed roller 16 is located on the main machine base 8 downstream of the false twisting device 15 in the yarn travel direction. The conveying speed of the yarn Y by the second feed roller 16 is faster than the conveying speed of the yarn Y by the first feed roller 11. Therefore, the yarn Y is stretched between the first feed roller 11 and the second feed roller 16.

[0033] The entanglement device 17 is a device that induces entanglement in the yarn Y by spraying air onto it. The entanglement device 17 is located below the second feed roller 16 on the main machine base 8.

[0034] The third feed roller 18 is a roller that feeds the yarn Y, which has been entangled by the entanglement device 17, toward the second heating device 19. The third feed roller 18 is located below the entanglement device 17 on the main machine base 8. The conveying speed of the yarn Y by the third feed roller 18 is slower than the conveying speed of the yarn Y by the second feed roller 16. As a result, the yarn Y is loosened between the second feed roller 16 and the third feed roller 18.

[0035] The second heating device 19 is a device for heating the yarn Y that has been fed from the third feed roller 18. The second heating device 19 is located below the third feed roller 18 on the main machine base 8. The second heating device 19 extends along the vertical direction, with one device provided in each span.

[0036] The fourth feed roller 20 is a roller that feeds the yarn Y, which has been heat-treated by the second heating device 19, toward the winding device 21. The fourth feed roller 20 is located at the bottom of the winding table 9. The conveying speed of the yarn Y by the fourth feed roller 20 is slower than the conveying speed of the yarn Y by the third feed roller 18. As a result, the yarn Y is loosened between the third feed roller 18 and the fourth feed roller 20.

[0037] In the processing unit 3 configured as described above, the yarn Y, which is stretched between the first feed roller 11 and the second feed roller 16, is twisted by the false twisting device 15. The twist formed by the false twisting device 15 propagates to the twist-stopping guide 12, but does not propagate upstream of the twist-stopping guide 12 in the yarn running direction. The yarn Y, which has been stretched and twisted, is heated and heat-set in the first heating device 13, and then cooled in the cooling device 14. Downstream from the false twisting device 15, the yarn Y is untwisted, but the heat-setting described above maintains the state in which each filament is falsely twisted in a wavy pattern. The yarn Y, which has been false-twisted by the false twisting device 15, is relaxed between the second feed roller 16 and the third feed roller 18, and is then entangled by the entanglement device 17 and guided downstream in the yarn running direction. Furthermore, the yarn Y is relaxed between the third feed roller 18 and the fourth feed roller 20, and is then heat-set in the second heating device 19. Finally, the yarn Y fed from the fourth feed roller 20 is wound up by the winding device 21 to form a winding package Pw.

[0038] (Configuration of the winding section 4) The winding section 4 has a plurality of winding devices 21. The winding devices 21 are devices for winding the yarn Y fed from the fourth feed roller 20 onto a bobbin Bw to form a winding package Pw (the package of the present invention). The bobbin Bw is, for example, a cylindrical member.

[0039] As shown in Figure 2, the winding device 21 includes a pair of cradle arms 30 (cradles of the present invention), contact rollers 40, a package storage section 50, a stocker 60, and a moving mechanism 80. Figure 2 shows the process of forming a winded package Pw by the winding device 21.

[0040] A pair of cradle arms 30 are arranged facing each other in the longitudinal direction of the machine base. Each of the pair of cradle arms 30 is capable of rotatably supporting the bobbin holder 70. The pair of cradle arms 30 are configured to grip the bobbin Bw via the bobbin holder 70. The cradle arms 30 form a winding package Pw when yarn is wound onto the bobbin Bw gripped by the bobbin holder 70. The pair of cradle arms 30 can also release the winding package Pw (or bobbin Bw) from the grip of the bobbin holder 70 by opening in the longitudinal direction of the machine base. The pair of cradle arms 30 can move between a winding position and a release position by rotating around a pivot axis 31 that extends in the longitudinal direction of the machine base, which is the axial direction of the bobbin holder 70. The winding position is the position in which yarn Y is wound onto the bobbin Bw mounted on the bobbin holder 70 and the winding package Pw is formed, as shown in Figure 2. The cradle arm 30 is configured such that as the package diameter of the winding package Pw supported by the cradle arm 30 increases, the center x1 of the winding package Pw moves from one side to the other in the machine width direction. In other words, the winding position of the cradle arm 30 moves from one side to the other in the machine width direction as the package diameter of the winding package Pw increases during winding. The release position is the position of the cradle arm 30 when the grip of the winding package Pw by the bobbin holder 70 is released, as shown in Figure 3, and is a position in which the released winding package Pw can be fed to the package storage section 50. The center x1 of the winding package Pw supported by the cradle arm 30 is approximately coincident with the axis of the bobbin holder 70.

[0041] The contact roller 40 is rotated in a constant direction while in contact with the outer circumferential surface of the bobbin Bw or winding package Pw, thereby rotating the bobbin Bw and winding the yarn Y. This contact roller 40 is a so-called line-driven type connected to a drive shaft common to each winding device 21, i.e., common to multiple spindles, and is driven by a motor (not shown). As shown in Figure 3, the contact roller 40 is positioned on the other side of a vertical plane F that passes through the axis of the bobbin holder 70, which is supported by the cradle arm 30 in the released position. In this embodiment, the vertical plane F is a plane parallel to the vertical direction and the longitudinal direction of the machine base. In this embodiment, the other side of the vertical plane F is the other side in the machine base width direction (right side of the paper in Figure 3) from the vertical plane F. As shown in Figure 3, the contact roller 40 is positioned lower than the stocker 60 in the vertical direction.

[0042] The package storage section 50 stores the winding packages Pw released from the cradle arm 30 in the released position. In this embodiment, the package storage section 50 can store a maximum of two winding packages Pw. As shown in Figure 3, the package storage section 50 is located on one side of the vertical plane F. In this embodiment, the one side of the vertical plane F is the side in the machine width direction relative to the vertical plane F (the left side of the page in Figure 3).

[0043] As shown in Figure 2, the package storage section 50 has two rails 53 arranged opposite each other in the longitudinal direction of the machine base. In Figure 2, only the rails 53 located in front of the winding package Pw stored in the package storage section 50 in the longitudinal direction of the machine base are shown, but in reality, there are also rails 53 located behind the winding package Pw stored in the package storage section 50 in the longitudinal direction of the machine base. The distance between the two rails 53 in the longitudinal direction of the machine base is slightly narrower than the width of the bobbin Bw in the longitudinal direction of the machine base, and greater than the width of the winding package Pw formed by winding yarn Y onto the bobbin Bw in the longitudinal direction of the machine base. The winding package Pw sent to the package storage section 50 is supported from below by the upper surfaces 51 of the two rails 53. More specifically, both ends of the bobbin Bw on which the winding package Pw is formed are supported from below by the upper surfaces 51 of the two rails 53.

[0044] As shown in Figure 3, the package storage section 50 is inclined downwards from the vertical plane F toward one side, that is, from the other side in the machine width direction (right side of Figure 3) toward the one side (left side of Figure 3). Similarly, the rail 53 of the package storage section 50 is also inclined downwards from the other side in the machine width direction toward one side. Therefore, the winding package Pw released from the cradle arm 30 rolls along the upper surface 51 of the downward-inclined rail 53 from the other side in the machine width direction toward one side. A member (not shown) is formed at one end of the package storage section 50 in the machine width direction to prevent the winding package Pw from rolling any further toward the one side in the machine width direction.

[0045] The package storage section 50 stores not only fully wound packages Pw, but also packages Pw that are partially wound when the yarn Y breaks during winding by the winding device 21.

[0046] The stocker 60 stores bobbins Bw for supply to the cradle arm 30. In this embodiment, the stocker 60 can store up to four bobbins Bw. The bobbins Bw stored in the stocker 60 are empty bobbins Bw with no yarn Y wound on them. As shown in Figure 2, the stocker 60 extends such that one front end in the machine width direction is lower than the other rear end. Hereinafter, the direction in which the stocker 60 extends will be referred to as the extension direction (see Figure 5). As shown in Figure 2, the stocker 60 is positioned higher than the package storage section 50 and the contact roller 40 in the vertical direction. The detailed configuration of the stocker 60 will be described later.

[0047] The moving mechanism 80 is for linearly moving the stocker 60 between a standby position and a supply position. The standby position is the position where the stocker 60 is waiting when no bobbin Bw is being supplied from the stocker 60 to the cradle arm 30 (see Figures 2 and 3). Specifically, the standby position is the position where the stocker 60 is waiting when yarn Y is being wound onto the bobbin Bw supported by the cradle arm 30, or when the winding package Pw is released from the cradle arm 30 in the release position and sent to the package storage section 50. The stocker 60 in the standby position can avoid contact with the bobbin Bw or winding package Pw supported by the cradle arm 30. As shown in Figure 3, the stocker 60 in the standby position is located on the other side of the vertical plane F. The supply position is the position of the stocker 60 to supply bobbins Bw to the bobbin holder 70, which is supported by the cradle arm 30 in the release position and has a bobbin Bw on which a winding package Pw is formed removed (see Figure 4). As shown in Figure 4, when the stocker 60 is in the supply position, the axis of the bobbin Bw on the outermost side in the machine width direction among the multiple bobbins Bw stored in the stocker 60 and the release position Cradle Arm 30 It is configured to coincide with the axis of the bobbin holder 70, which is supported by it.

[0048] The moving mechanism 80 is, for example, an actuator connected to the stocker 60, which moves the stocker 60 linearly between a standby position and a supply position when driven. In this embodiment, the stocker 60 is mounted below the moving mechanism 80.

[0049] (Configuration of Stocker 60) Next, the detailed configuration of the storage unit 60 will be described below with reference to Figures 2 to 7. The storage unit 60 includes a support surface 61, a restricting portion 62, a stopper 63, a second restricting portion 64, a front end support portion 65, and a rotating shaft 66 (corresponding to the first and second rotating shafts of the present invention).

[0050] The support surface 61 supports the multiple bobbins Bw stored in the stocker 60 from below. As shown in Figure 2, the support surface 61 is inclined such that one end in the machine width direction is lower than the other end in the machine width direction. In other words, the support surface 61 extends along the direction of extension of the stocker 60. Therefore, the bobbins Bw stored in the stocker 60 move along the inclination of the support surface 61 from one side to the other in the machine width direction.

[0051] As shown in Figure 2, the rotating shaft 66 is a rotating shaft that is aligned with the axial direction of the bobbin holder 70, i.e., the longitudinal direction of the machine frame. The rotating shaft 66 is formed on one end portion of the stocker 60 in the machine frame width direction, specifically in the lower portion.

[0052] The restricting section 62 is a component that prevents the bobbin Bw stored in the stocker 60 from falling out of the stocker 60. The restricting sections 62 are arranged opposite each other in the longitudinal direction of the machine base. The distance between the opposing restricting sections 62 in the longitudinal direction of the machine base is greater than the width of the bobbin Bw in the longitudinal direction of the machine base. The restricting unit 62 is configured to switch between a restricting state (states shown in Figures 2, 3, and 6) that prevents bobbins Bw stored in the stocker 60 from falling out of the stocker 60, and a released state (states shown in Figures 4 and 7) when the restricting state is released. As the stocker 60 moves from the standby position to the supply position, the restricting unit 62 rotates in a first direction D1 (see solid arrow in Figure 6) around the rotation axis 66 to switch from the restricted state to the released state. The first direction D1 is the clockwise direction in Figure 6. As the stocker 60 moves from the supply position to the standby position, the restricting unit 62 rotates in a second direction opposite to the first direction D1 around the rotation axis 66 to switch from the released state to the restricted state. The second direction is the counterclockwise direction in Figure 6. The switching of the states of the restricting unit 62 will be explained in detail later. As shown in Figure 5, two restricting units 62 are arranged facing each other in the longitudinal direction of the machine base. The distance between the two restricting sections 62 in the longitudinal direction of the machine frame is slightly greater than the width of the bobbin Bw in the longitudinal direction of the machine frame.

[0053] As shown in Figure 5, the restricting portion 62 includes a claw portion 62a, an arm portion 62b, and a contact portion 62c. The claw portion 62a prevents the bobbin Bw stored in the stocker 60 from falling out of the stocker 60 by restricting its movement along the support surface 61 from one side to the other in the machine width direction. The claw portion 62a is connected to the rotating shaft 66 via the arm portion 62b. The claw portion 62a has a plate-like shape.

[0054] As shown in Figures 2 and 5, the claw portion 62a extends downward to one side in the machine width direction from the tip of the arm portion 62b opposite to the side connected to the rotation axis 66. As shown in Figures 2 and 6, when the restricting portion 62 is in the restricting state, the claw portion 62a contacts the upper part of the bobbin Bw on the outermost side in the machine width direction among the multiple bobbins Bw stored in the stocker 60. This allows the claw portion 62a to restrict the movement of the bobbin Bw along the inclined support surface 61. Also, as shown in Figures 4 and 7, when the restricting portion 62 is in the open state, the claw portion 62a avoids contact with the bobbin Bw stored in the stocker 60. This releases the restriction on the movement of the bobbin Bw by the claw portion 62a.

[0055] The arm portion 62b is connected to the rotating shaft 66 and the claw portion 62a. The arm portion 62b can restrict the movement of the bobbin Bw located on the outermost side in the machine width direction among the multiple bobbins Bw stored in the stocker 60 in the machine width direction. Specifically, the arm portion 62b of the restricting portion 62 on the front side of the paper in the machine length direction restricts the movement of the bobbin Bw stored in the stocker 60 toward the front side of the paper in the machine length direction. In addition, the arm portion 62b of the restricting portion 62 on the rear side of the paper in the machine length direction restricts the movement of the bobbin Bw stored in the stocker 60 toward the rear side of the paper in the machine length direction.

[0056] The contact portion 62c is the part that can come into contact with the bobbin holder 70 supported by the cradle arm 30 in the released position. As shown in Figure 5, the contact portion 62c is formed on one side of the arm portion 62b in the machine width direction. As the stocker 60 moves from the standby position to the supply position, the contact portion 62c comes into contact with the bobbin holder 70 supported by the cradle arm 30 in the released position.

[0057] The stopper 63 is the portion to which the restricting portion 62, which rotates in the first direction D1, can make contact. Specifically, the stopper 63 is the portion to which the other side and upper portion of the arm portion 62b in the machine width direction can make contact. (See Figure 7)The stopper 63 is positioned opposite to the machine frame in the longitudinal direction. The stopper 63 is formed on the upper part of the stocker 60. More specifically, when four bobbins Bw are housed in the stocker 60, and the bobbins Bw are numbered 1 to 4 in order from the bobbin Bw on one side in the machine frame width direction, the stopper 63 is formed on the upper part of the second bobbin Bw. As shown in Figures 4 and 7, when the stocker 60 reaches the supply position, the restricting part 62, which rotates in the first direction D1, comes into contact with the stopper 63, thereby restricting the further rotation of the restricting part 62 in the first direction D1.

[0058] The second restricting section 64 is a member that prevents the bobbin Bw stored in the stocker 60 from flying out beyond the bobbin holder 70 when the stocker 60 reaches the supply position and the restricting section 62 is released. As shown in Figure 5, the second restricting section 64 extends from near the upper part of one end of the stocker 60 in the machine width direction toward one side in the machine width direction toward the downward in the vertical direction. The second restricting section 64 is also an elastic member, such as a leaf spring. When the stocker 60 moves from the supply position to the standby position after having finished transferring the bobbin Bw to the cradle arm 30, the second restricting section 64 may get caught on the bobbin Bw supported by the cradle arm 30, potentially hindering the movement of the stocker 60. In this regard, the elastic second restricting portion 64, when it comes into contact with the bobbin Bw supported by the cradle arm 30 as the stocker 60 moves from the supply position to the standby position, is pushed upward by the bobbin Bw and bends. This prevents the second restricting portion 64 and the bobbin Bw supported by the cradle arm 30 from getting caught when the stocker 60 moves from the supply position to the standby position. Also, as shown in Figure 5, two second restricting portions 64 are arranged in the longitudinal direction of the machine base, on both sides of the central portion of the stocker 60 and inside the two restricting portions 62.

[0059] The front end support portion 65 supports from below the bobbin Bw that is on the far side in the machine width direction among the multiple bobbins Bw stored in the stocker 60. As shown in Figures 2 and 5, the front end support portion 65 is close to the cradle arm 30 in the open position of the stocker 60. Front end Furthermore, it is provided in the lower part. Also, as shown in Figure 5, the front end support portion 65 extends in the longitudinal direction of the machine base. Moreover, as shown in Figures 6 and 7, when viewed from the longitudinal direction of the machine base, one side of the front end support portion 65 in the machine base width direction is bent into a V shape. The front end support portion 65 is made of, for example, sheet metal or resin.

[0060] The front end support portion 65 can assume a restricting position that prevents the bobbin Bw from falling out of the stocker 60. When the front end support portion 65 is in the restricting position, the bobbin Bw fits into the V-shaped bent portion of the front end support portion 65, preventing it from falling out of the stocker 60 (see Figures 6 and 7). Furthermore, the bobbin Bw fitting into the V-shaped bent portion of the front end support portion 65 in the restricting position allows for accurate positioning of the bobbin Bw. This enables accurate transfer of the bobbin Bw to the bobbin holder 70 supported by the cradle arm 30 in the release position when the stocker 60 reaches the supply position. The front end support portion 65 is also rotatable around the rotation axis 66. In this embodiment, the rotation axis 66 of the restricting portion 62 and the front end support portion 65 are common.

[0061] Furthermore, the stocker 60 includes a biasing member 67. The biasing member 67 is a member that biases the front end support portion 65, which is rotatable around the rotation axis 66, to a restricted position. The biasing member 67 is, for example, a spring member. In this embodiment, the biasing member 67 also has the role of biasing the restricting portion 62, which is rotatable around the rotation axis 66, to a restricted state.

[0062] (The supply operation of the bobbin Bw from the stocker 60 to the cradle arm 30) Next, the operation of the stocker 60, which moves between the standby position and the supply position when the bobbin Bw is supplied to the cradle arm 30, and the operation of each component associated with this will be described below.

[0063] As described above, while the winding device 21 is winding the yarn Y, and when the winding package Pw is released from the cradle arm 30 in the released position and sent to the package storage unit 50, the stocker 60 is in a standby position (see Figures 2 and 3). When the stocker 60 is in the standby position, the restricting unit 62 is in a restricted state, and the front end support unit 65 is in a restricted position (see Figures 2 and 3).

[0064] When the winding package Pw is released from the cradle arm 30 in the release position and sent to the package storage unit 50, the moving mechanism 80 moves the stocker 60 linearly from the standby position toward the supply position. In this embodiment, the stocker 60 in the standby position moves linearly toward one side in the machine width direction and toward a diagonal direction toward downward (the direction of the paper diagonally downward to the left in Figure 3). In this embodiment, the direction in which the stocker 60 extends and the direction in which the stocker 60 moves are substantially the same. Figure 6 shows the stocker 60 in transit from the standby position toward the supply position.

[0065] As the stocker 60 moves from the standby position to the supply position, the contact portion 62c comes into contact with the bobbin holder 70, which is supported by the cradle arm 30 in the released position. More specifically, as shown in Figures 3 and 4, the contact portion 62c of the restricting portion 62 located on the far side of the page in the longitudinal direction of the machine base comes into contact with the bobbin holder 70 located on the far side of the page in the longitudinal direction of the machine base, and the contact portion 62c of the restricting portion 62 located on the near side of the page in the longitudinal direction of the machine base comes into contact with the bobbin holder 70 located on the near side of the page in the longitudinal direction of the machine base. As the stocker 60 moves further to the supply position from the state in which the contact portion 62c and the bobbin holder 70 are in contact, the contact portion 62c is pushed by the bobbin holder 70. As a result, the restricting portion 62 of the stocker 60 Rotating axis 66The regulating part rotates in the first direction D1 (see Figure 6) around the central axis, switching from a restricted state to a released state. Then, when the stocker 60 reaches the supply position, the regulating part 62 is released (see Figures 4 and 7). Note that in Figures 6 and 7, for explanatory purposes, the cradle arm 30 and bobbin holder 70 on the front side of the page in the longitudinal direction of the machine base are omitted from the description.

[0066] As shown in Figure 7, when the stocker 60 reaches the supply position, the restricting part 62 comes into contact with the stopper 63. This restricts the restricting part 62 from rotating further in the first direction D1. In other words, the rotation of the restricting part 62 is restricted, and the stocker 60 is prevented from moving further beyond the supply position, by being sandwiched between the bobbin holder 70, which is supported by the cradle arm 30 in the released position, and the stopper 63.

[0067] When the stocker 60 reaches the supply position, the bobbin Bw supported from below by the front end support portion 65 is mounted on the bobbin holder 70 supported by the cradle arm 30, which is in the open position. More specifically, when the stocker 60 reaches the supply position, the restricting portion 62 is in the open state, so the restriction by the arm portion 62b is released on both sides of the bobbin Bw supported from below by the front end support portion 65 in the longitudinal direction of the machine base (see Figure 7). In this state, the bobbin holder 70 closes inward from both sides of the bobbin Bw in the longitudinal direction of the machine base with respect to the hollow portion of the cylindrical bobbin Bw, thereby clamping the bobbin Bw with the bobbin holder 70.

[0068] When the bobbin Bw is supported by the cradle arm 30, the moving mechanism 80 moves the stocker 60 linearly from the supply position to the standby position. As the stocker 60 moves from the supply position to the standby position, it moves away from the cradle arm 30, which is in the open position, to the other side in the machine width direction. As a result, the restricting portion 62, whose contact portion 62c is in contact with the bobbin holder 70 supported by the cradle arm 30 in the open position, rotates in a second direction opposite to the first direction D1 around the rotation axis 66, switching from the open state to the restricted state. Then, as the contact between the contact portion 62c and the bobbin holder 70 is released, the restricting portion 62 returns to the restricted state due to the biasing force of the biasing member 67.

[0069] Furthermore, when the stocker 60 moves from the supply position to the standby position, the V-shaped portion of the front end support 65 is pushed by the bobbin Bw supported by the cradle arm 30, which is in the released position. As a result, the front end support 65 rotates around the rotation axis 66 to avoid the bobbin Bw, against the biasing force of the biasing member 67. In other words, the front end support 65 rotates around the rotation axis 66 against the biasing force of the biasing member 67, such that its tip is lower than the base portion connected to the rotation axis 66. Then, as the stocker 60 moves further toward the standby position and the front end support 65 and the bobbin Bw no longer come into contact, the front end support 65 returns to its restricted position due to the biasing force of the biasing member 67. Note that as the stocker 60 moves from the supply position to the standby position, the bobbin Bw remaining in the stocker 60 moves along the inclined support surface 61. Then, of the multiple bobbins Bw remaining in the stocker 60, the bobbin Bw on the far side in the machine width direction is supported from below by the front end support 65, which has returned to its regulated position.

[0070] The above operations complete the supply of bobbin Bw from stocker 60 to cradle arm 30.

[0071] (effect) The winding device 21 of this embodiment includes a package storage section 50 arranged on one side of a vertical plane F, a stocker 60 arranged on the other side of the vertical plane F, and a moving mechanism 80 for moving the stocker 60 between a standby position and a supply position. The moving mechanism 80 moves the stocker 60 linearly between the standby position and the supply position. As a result, the stocker 60 does not pass above both the standby position and the supply position on its way from the standby position to the supply position, and there is no need to secure additional space above the winding device 21. However, even when the stocker 60 is moved linearly, if the stocker 60 is arranged above the package storage section 50, for example as in the aforementioned Patent Document 2, the position of the stocker 60 becomes high, and there is a limit to the reduction in the height dimension of the winding device 21. This is because the winding package Pw released from the cradle arm 30 is sent to the package storage section 50 by passing below the stocker 60, so the distance between the stocker 60 and the package storage section 50 needs to be large enough for the winding package Pw to pass through. In this embodiment, the stocker 60 is positioned on the opposite side of the package storage section 50, with the vertical plane F as the boundary. Therefore, the stocker 60 can be positioned at a low location while ensuring that it does not pass above both the standby position and the supply position, thereby effectively suppressing the height of the winding device 21.

[0072] In the winding device 21 of this embodiment, the stocker 60 is provided with a restricting section 62 that can be switched between a restricted state and an open state. The restricting section 62 is in the open state when the stocker 60 reaches the supply position. As a result, until the stocker 60 reaches the supply position, the restricting section 62 in the restricted state prevents the bobbin Bw from falling out of the stocker 60. Furthermore, since the restricting section 62 is in the open state when the stocker 60 reaches the supply position, the supply of bobbin Bw from the stocker 60 to the cradle arm 30 is not obstructed by the restricting section 62. This ensures reliable storage of bobbin Bw by the stocker 60 while appropriately supplying bobbin Bw from the stocker 60 to the cradle arm 30.

[0073] In the winding device 21 of this embodiment, the restricting unit 62 has a contact portion 62c that can contact the bobbin holder 70 supported by the cradle arm 30 in the released position. As the stocker 60 moves from the standby position to the supply position, the contact portion 62c of the restricting unit 62 is pushed by the bobbin holder 70, causing it to rotate in a first direction D1 around the rotation axis 66 and switch from a restricted state to a released state. Also, as the stocker 60 moves from the supply position to the standby position, the contact between the contact portion 62c and the bobbin holder 70 is released, causing the restricting unit 62 to rotate in a second direction opposite to the first direction D1 around the rotation axis 66 and switch from a released state to a restricted state. With this, the released state and restricted state of the restricting unit 62 can be switched depending on whether or not the contact portion 62c and the bobbin holder 70 come into contact as the stocker 60 moves. For this reason, a drive source for switching the state of the restricting unit 62 is not required.

[0074] In the winding device 21 of this embodiment, the stocker 60 has a stopper 63 to which a restricting portion 62 that rotates in a first direction D1 can abut. When the stocker 60 reaches the supply position, the restricting portion 62 that rotates in the first direction D1 is pushed by the bobbin holder 70 by its contact portion 62c, and its further rotation in the first direction D1 is restricted when it abuts the stopper 63. As a result, the contact portion 62c of the restricting portion 62 is prevented from being further pushed by the bobbin holder 70, that is, further movement of the stocker 60 is restricted. This prevents the stocker 60 from moving beyond the supply position and allows for proper supply of the bobbin Bw from the stocker 60 to the cradle arm 30.

[0075] Furthermore, in the winding device 21 of this embodiment, a second restricting unit 64 is provided on the stocker 60 to prevent the bobbin Bw stored in the stocker 60 from flying out beyond the bobbin holder 70 when the stocker 60 reaches the supply position and the restricting unit 62 is released. When the stocker 60 moves from the standby position to the supply position, an inertial force acts on the bobbin Bw. Therefore, even after the stocker 60 reaches the supply position, the bobbin Bw tries to move beyond the cradle arm 30, which is in the released position, in the direction in which the stocker 60 moves. However, when the stocker 60 reaches the supply position, the restricting unit 62 is in the released position and cannot restrict the movement of the bobbin Bw. Therefore, there is a risk that the bobbin Bw stored in the stocker 60 will move beyond the cradle arm 30. In this case, it is not possible to properly supply the bobbin Bw to the cradle arm 30. According to this embodiment, since the second restricting section 64 is provided, when the stocker 60 reaches the supply position, it is possible to suppress the movement of the bobbin Bw beyond the cradle arm 30 in the release position due to inertial force. This makes it possible to supply the bobbin Bw from the stocker 60 to the cradle arm 30 more reliably.

[0076] In the winding device 21 of this embodiment, a front end support portion 65 is provided at the front end of the stocker 60, near the cradle arm 30 in the release position, to support the bobbin Bw from below. The front end support portion 65 can assume a restrictive position to prevent the bobbin Bw from falling out of the stocker 60, and is rotatable around the rotation axis 66. Furthermore, the stocker 60 has a biasing member 67 that biases the front end support portion 65 to assume the restrictive position. When the stocker 60 moves from the supply position to the standby position, the front end support portion 65 is pushed by the bobbin Bw supported by the cradle arm 30 in the release position, causing it to rotate around the rotation axis 66 against the biasing force of the biasing member 67 to avoid the bobbin. In this embodiment, the provision of the front end support portion 65 prevents the bobbin Bw stored in the stocker 60 from falling out of the stocker 60. On the other hand, when the stocker 60 attempts to return to its standby position after the supply of bobbins Bw from the stocker 60 to the cradle arm 30 is complete, the front end support portion 65 attempts to prevent the bobbins Bw from falling out, Cradle Arm 30 In the previous configuration, the bobbin Bw supported by the cradle arm 30 could get caught, potentially hindering the movement of the stocker 60. According to this embodiment, when the stocker 60 returns from the supply position to the standby position, the front end support portion 65 rotates to avoid the bobbin Bw supported by the cradle arm 30. This prevents the front end support portion 65 from getting caught on the bobbin Bw supported by the cradle arm 30, thus avoiding the stocker 60 from getting caught and hindering its movement to the standby position. As a result, the stocker 60 can be smoothly returned to the standby position after supplying the bobbin Bw to the cradle arm 30, and the subsequent winding operation of the yarn Y can be performed quickly.

[0077] (modified version) Modified examples of the above-described embodiment will be explained below. However, components having the same configuration as the above-described embodiment will be denoted by the same reference numerals and their descriptions will be omitted as appropriate.

[0078] In the above embodiment, the restricting unit 62 is configured such that as the stocker 60 moves from the standby position to the supply position, the contact portion 62c is pressed against the bobbin holder 70, thereby switching from a restricted state to a released state. However, the restricting unit 62 that can switch between a restricted state and a released state is not limited to the above configuration. For example, the restricting unit 62 may be: Electric motor It may also be possible to switch between a restricted state and a released state using this method.

[0079] Furthermore, in the above embodiment, the restricting unit 62 can be switched between a restricted state and a released state by rotating around the rotation axis 66. However, the restricting unit 62 is not limited to a configuration that rotates around the rotation axis 66. For example, the restricting unit 62 may be configured to be switchable between a restricted state and a released state by sliding in a direction intersecting the extending direction of the stocker 60.

[0080] In the above embodiment, the stocker 60 in the standby position moves linearly in a direction that substantially coincides with the extension direction of the stocker 60, and is oblique to one side and downward in the machine width direction (the left-downward direction in the plane of the paper in Figure 3). However, the stocker 60 in the standby position may also move linearly in an oblique direction that is oblique to one side and upward in the machine width direction (for example, the left-upward direction in the plane of the paper in Figure 3) or horizontally. In this case, an extrusion mechanism or the like is arranged in the stocker 60 to push out the bobbins Bw stored in the stocker 60 from the rear end to the front end in the extension direction of the stocker 60. Furthermore, the extension direction of the stocker 60 and the direction in which the stocker 60 moves linearly do not have to substantially coincide.

[0081] In the above embodiment, one rotating shaft 66 corresponds to both the first and second rotating shafts of the present invention. However, the first rotating shaft, which is the rotation center of the regulating portion 62, and the second rotating shaft, which is the rotation center of the front end support portion 65, may be provided separately.

[0082] In the above embodiment, the stocker 60 has a restricting unit 62 that can be switched between a restricted state and an open state. However, the stocker 60 does not have to have a restricting unit 62. In this case, it is preferable that the stocker 60 is provided with a member to prevent the bobbin Bw from falling out of the stocker 60 when it is in the standby position and when it is moving from the standby position toward the supply position.

[0083] In the above embodiment, the stocker 60 has a second restricting part 64 that prevents the bobbin Bw stored in the stocker 60 from flying out beyond the bobbin holder 70 when the restricting part 62 is released. However, the stocker 60 does not have to have the second restricting part 64. In this case, it is preferable that the moving mechanism 80 sets the moving speed of the stocker 60 as it moves from the standby position to the supply position to a predetermined rough speed or less. The predetermined speed is a speed that can prevent the bobbin Bw from flying out beyond the bobbin holder 70 when the stocker 60 reaches the supply position. This suppresses the inertial force acting on the bobbin Bw when the stocker 60 moves from the standby position to the supply position, and prevents the bobbin Bw from falling out of the stocker 60.

[0084] In the above embodiment, two second restricting sections 64 are located on both sides of the central portion of the stocker 60 in the longitudinal direction of the machine base, and inside the two restricting sections 62. However, the number of second restricting sections 64 is not limited to two. For example, there may be one second restricting section 64, or there may be three or more.

[0085] In the above embodiment, the storage unit 60 has a front end support portion 65. However, the storage unit 60 does not have to have a front end support portion 65. In this case, the storage unit 60 has: Section 2, Regulatory Unit 64 It is preferable that a feature is provided.

[0086] The winding device 21 of the above embodiment is applied to the false twisting machine 1. However, the winding device 21 of the present invention is not limited to the false twisting machine 1, but can also be applied to the winding device of a rewinder.

[0087] In the above embodiment, the cradle arm 30 is configured to be movable between the winding position and the release position. However, Cradle Arm 30 The cradle arm does not necessarily have to move between a winding position and a release position. For example, if the contact roller 40 is not connected to a common drive shaft for multiple weights in a line drive system, it may be a fixed cradle arm (see Japanese Patent Publication No. 2015-40116, etc.). In this case, the winding position and the release position of the cradle arm are the same. [Explanation of symbols]

[0088] 1 False twisting machine 21 Winding device 30 Cradle Arm (Cradle) 40 Contact rollers 50 Package storage section 60 storage containers 62 Regulatory Department 62c Contact part 63 Stopper 64 Second Regulatory Section 65 Front end support 66. Rotation axes (first rotation axis and second rotation axis) 67. Biasing member 70 Bobbin Holder 80 Moving mechanism Bw Bobbin Pw reel package (package) Y thread

Claims

1. A cradle capable of rotatably supporting a bobbin holder, forming a package when thread is wound onto a bobbin held by the bobbin holder, and releasing the package from the bobbin holder's grip; A package storage section for storing the package released from the cradle, A stocker for storing the bobbins to be supplied to the cradle, The stocker comprises a moving mechanism that moves the stocker between a standby position and a supply position where the bobbin is supplied to the cradle, which is in a release position where the grip of the package by the bobbin holder is released. The package storage section is arranged on one side of a vertical plane that passes through the axis of the bobbin holder supported by the cradle in the open position. The storage unit in the aforementioned standby position is positioned on the other side of the vertical plane, The winding device is characterized in that the moving mechanism linearly moves the stocker between the standby position and the supply position.

2. The stocker is provided with a restricting section at the front end closest to the cradle in the open position, which can be switched between a restricting state that prevents the bobbins stored in the stocker from falling out of the stocker and an open state in which the restricting state is released. The winding device according to claim 1, characterized in that the restricting portion is released when the stocker reaches the supply position.

3. The stocker has a first rotation axis along the axial direction of the bobbin holder, The aforementioned regulatory body, It has a contact portion that can come into contact with the bobbin holder supported by the cradle in the released position, As the stocker moves from the standby position to the supply position, the contact portion is pressed against the bobbin holder, causing it to rotate in a first direction around the first rotation axis, switching from the restricted state to the released state. The winding device according to claim 2, characterized in that as the stocker moves from the supply position to the standby position, the contact between the contact portion and the bobbin holder is released, causing it to rotate in a second direction opposite to the first direction around the first rotation axis, thereby switching from the open state to the restricted state.

4. The stocker has a stopper to which the restricting portion, which rotates in the first direction, can make contact. The winding device according to claim 3, characterized in that when the stocker reaches the supply position, the regulating portion, which rotates in the first direction when the contact portion is pressed against the bobbin holder, is restricted from further rotation in the first direction by contacting the stopper.

5. The winding device according to claim 2, wherein a second restricting part is provided in the stocker to prevent the bobbin stored in the stocker from flying out beyond the bobbin holder when the stocker reaches the supply position and the restricting part is in the released state.

6. The winding device according to claim 3, wherein a second restricting part is provided in the stocker to prevent the bobbin stored in the stocker from flying out beyond the bobbin holder when the stocker reaches the supply position and the restricting part is in the released state.

7. The winding device according to claim 4, wherein a second restricting part is provided in the stocker to prevent the bobbin stored in the stocker from flying out beyond the bobbin holder when the stocker reaches the supply position and the restricting part is in the released state.

8. Of the stocker, the front end closest to the cradle in the open position is provided with a front end support portion that supports the bobbin from below. The front end support portion is capable of adopting a restrictive position to prevent the bobbin from falling out of the stocker, and is rotatable about a second rotation axis along the axial direction of the bobbin holder. The storage unit further includes a biasing member that biases the front end support portion to the restricting position, The winding device according to claims 1 to 7, characterized in that the front end support portion is pressed by the bobbin supported by the cradle in the released position when the stocker moves from the supply position to the standby position, and rotates around the second rotation axis in opposition to the biasing force by the biasing member so as to avoid the bobbin.

Images