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 technology]

[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 supplying section, and a winding device that winds the false twisted yarn. The winding device has a cradle that rotatably supports a pair of bobbin holders, and winds the yarn onto bobbins (cardboard tubes in Patent Document 1) attached to the bobbin holders to form a package.

[0003] When a full 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 of Patent Document 2) that has a package storage section (guide rail of Patent Document 2) that supports the package removed from the cradle, and a stocker (paper tube stocker of Patent Document 2) that stores 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 supported via a support bracket on a rotating shaft provided below the stocker so as to be able to swing freely. When winding a yarn, the stocker is located at a standby position (the position shown in FIG. 2) above the package storage section, and when supplying a bobbin to the cradle, the stocker 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 of Patent Document 2 (hereinafter simply referred to as the right side, and the left side of the paper surface simply referred to as the left side). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-47074 [Patent Document 2] Japanese Patent Application Publication No. 9-86799 Summary of the Invention [Problem to be solved by the invention]

[0006] In the device of Patent Document 2, as shown in FIG. 2, when the stocker is in the standby position, the support bracket supporting the stocker is tilted diagonally upward and left from the rotation axis. On the other hand, when the stocker is in the supply position, the support bracket swings clockwise from the position shown in FIG. 2, tilting diagonally upward and right from the rotation axis. In other words, as the stocker moves from the standby position to the supply position, the support bracket changes from a diagonally upward and left tilted state to a vertical position, and then tilts diagonally upward and right from the rotation axis. As a result, the stocker connected to the support bracket passes through a position above both the standby position and the supply position during its movement from the standby position to the supply position. Therefore, it is necessary to provide space above the winding device to prevent the stocker from interfering with other components during its movement from the standby position to the supply position. However, providing such space increases the effective height of the winding device.

[0007] SUMMARY OF THE INVENTION An object of the present invention is to prevent the height of a winding device from increasing. [Means for solving the problem]

[0008] The winding device of the present invention comprises a cradle that can rotatably support a bobbin holder, that forms a package by winding thread onto a bobbin held by the bobbin holder, and that can release the package from the grip of the bobbin holder, a package storage section that stores the package released from the cradle, a stocker that stores the bobbins to be supplied to the cradle, and a moving mechanism that moves the stocker between a standby position and a supply position that supplies the bobbins to the cradle that is in a release position where the grip of the package by the bobbin holder is released, 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, and 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 the standby position to the supply position by moving linearly. Therefore, the stocker does not pass above both the standby position and the supply position during its movement from the standby position to the supply position, eliminating the need for additional space above the winding device. However, even when the stocker moves linearly, if the stocker is located above the package storage section, as in Patent Document 2, for example, the stocker position becomes too high, limiting the reduction in the height of the winding device. This is because packages released from the cradle are sent to the package storage section by passing below the stocker, so the distance between the stocker and the package storage section must be large enough to allow the packages to pass through. In this regard, the present invention positions the stocker on the opposite side of the package storage section across the vertical plane. Therefore, the stocker can be located at a low position while preventing the stocker from passing above both the standby position and the supply position, effectively reducing the height of the winding device.

[0010] In the winding device of the present invention, a regulating section is provided at the front end of the stocker near the cradle in the released position, which is switchable between a regulated state that prevents the bobbins stored in the stocker from falling out of the stocker, and a released state in which the regulated state is released, and it is preferable that the regulating section enters the released state when the stocker reaches the supply position.

[0011] According to the present invention, the restricting portion in the restricting state can prevent bobbins from falling out of the stocker until the stocker reaches the supply position. Furthermore, since the restricting portion is released when the stocker reaches the supply position, the restricting portion does not impede the supply of bobbins from the stocker to the cradle. This allows the stocker to reliably store bobbins while also allowing the stocker to properly supply bobbins to the cradle.

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

[0013] According to the present invention, the restricting portion can be switched between the released state and the restricted state depending on whether or not the abutting portion comes into contact with the bobbin holder as the stocker moves, eliminating the need for a drive source for switching the state of the restricting portion.

[0014] In the winding device of the present invention, it is preferable that the stocker has a stopper against which the regulating portion rotating in the first direction can abut, and when the stocker reaches the supply position, the abutting portion is pressed by the bobbin holder to rotate in the first direction, and the regulating portion abuts against the stopper, thereby restricting further rotation in the first direction.

[0015] According to the present invention, the restricting portion, which rotates in the first direction as the stocker moves, contacts the stopper and is restricted from further rotation in the first direction. This restricts the bobbin holder from further pressing the contacting portion of the restricting portion, i.e., restricts further movement of the stocker. This prevents the stocker from moving beyond the supply position, allowing proper supply of bobbins 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 regulating section that prevents the bobbins stored in the stocker from flying out beyond the bobbin holder when the stocker reaches the supply position and the regulating section 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 past the cradle, which is in the release position, along the direction of the stocker's movement. However, when the stocker reaches the supply position, the restricting unit is in the release state and is therefore unable to restrict the bobbin's movement. Therefore, there is a risk that the bobbin stored in the stocker will move past the cradle. In this case, the bobbin cannot be properly supplied to the cradle. According to the present invention, the second restricting unit is provided, and therefore, when the stocker reaches the supply position, the inertial force can be prevented from causing the bobbin to move past the cradle, which is in the release position. This allows for more reliable supply of bobbins from the stocker to the cradle.

[0018] In the winding device of the present invention, a front end support portion that supports the bobbin from below is provided at the front end portion of the stocker that is close to the cradle in the released position, and the front end support portion is capable of assuming a restrictive posture that prevents the bobbin from falling out of the stocker and is rotatable around a second rotation axis along the axial direction of the bobbin holder, and the stocker further has a biasing member that biases the front end support portion to assume the restrictive posture, and when the stocker moves from the supply position to the standby position, it is preferable that the front end support portion is pushed by the bobbin supported by the cradle in the released position, and rotates around the second rotation axis against the bias of the biasing member to avoid the bobbin.

[0019] In the present invention, the provision of the front end support portion prevents bobbins stored in the stocker from falling out of the stocker. However, when the stocker attempts to return to the standby position after the supply of bobbins from the stocker to the cradle is complete, the front end support portion, which attempts to prevent the bobbins from falling out, may get caught on the bobbins supported by the cradle, hindering the stocker's movement. According to the present invention, when the stocker returns from the supply position to the standby position, the front end support portion rotates to avoid the bobbins supported by the cradle. This prevents the front end support portion from getting caught on the bobbins supported by the cradle, hindering the stocker's movement to the standby position. Therefore, the stocker can be smoothly returned to the standby position after the supply of bobbins to the cradle, allowing the subsequent yarn winding operation to be performed quickly. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic side view of a false twisting machine according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram showing the configuration of a winding device. [Figure 3] 10 is a schematic diagram of the winding device when the cradle arm has moved to the release position. FIG. [Figure 4] FIG. 10 is a schematic diagram of the winding device when the stocker has moved to the supply position. [Figure 5] FIG. 2 is a partial perspective view showing the configuration of the front part of the stocker. [Figure 6] FIG. 10 is a diagram showing the stocker on its way from the standby position to the supply position. [Figure 7] FIG. 10 is a diagram showing the stocker when it has reached the supply position. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment 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 the schematic configuration of a false twisting machine 1 according to this embodiment. Hereinafter, the direction perpendicular to the plane of the paper in Fig. 1 will be referred to as the machine base longitudinal direction, and the left-right direction of the plane of the paper will be referred to as the machine base width direction. The direction perpendicular to both the machine base longitudinal direction and the machine base width direction will be referred to as the vertical direction in which gravity acts. The following explanation will use the above directional terms as appropriate.

[0023] The false twisting machine 1 is configured to be able to false twist a yarn Y made of a synthetic fiber such as nylon (a polyamide fiber). The false twisting machine 1 includes a yarn supplying section 2 for supplying the yarn Y, a processing section 3 for false twisting the yarn Y supplied from the yarn supplying section 2, and a winding section 4 for winding the yarn Y processed by the processing section 3 onto a bobbin Bw. The components of the yarn supplying section 2, the processing section 3, and the winding section 4 are arranged in multiple rows in the machine frame longitudinal direction, perpendicular to the yarn running plane (the plane of the paper in FIG. 1 ) along which the yarn path from the yarn supplying section 2 through the processing section 3 to the winding section 4 is located.

[0024] (Yarn feeding section 2) The yarn supplying section 2 has a creel stand 7 that holds a plurality of yarn supply packages Ps, and supplies a plurality of yarns Y to the processing section 3. The processing section 3 is configured to include, in order from the upstream side in the yarn running direction, a first feed roller 11, a twist stop guide 12, a first heating device 13, a cooling device 14, a false twist device 15, a second feed roller 16, an entangling 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 that 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] The false twisting machine 1 also has a main machine base 8 and a winding table 9 arranged at an interval in the width direction of the machine base. The main machine base 8 and the winding table 9 extend over 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 table 9 are connected by a support frame 10. The devices that make up the processing section 3 are mainly attached to the main machine base 8 and the support frame 10. The main machine base 8, the winding table 9, and the support frame 10 form a work space 22 in which an operator can perform work such as threading on each device. The yarn path is formed so that the yarn Y mainly runs around the work space 22.

[0026] The false twisting machine 1 has a unit called a span, which includes a pair of a main frame 8 and a winding frame 9 arranged opposite each other. In one span, the devices are arranged so that multiple yarns Y running in a line in the longitudinal direction of the machine can be false twisted simultaneously. As an example, the winding frame 9 included in one span is provided with a total of 16 winding devices 21 in four rows and four columns. The false twisting machine 1 is configured such that these spans are arranged symmetrically on the left and right of the page with the center line C in the width direction of the main frame 8 as the axis of symmetry (the main frame 8 is common to both the left and right spans), and multiple spans are arranged in the longitudinal direction of the machine.

[0027] (Configuration of processing part) Next, we will explain each component of the processing unit 3. The first feed roller 11 is used to feed the yarn Y supplied from the yarn supplying unit 2 to the first heating device 13. The first feed roller 11 is disposed above the winding table 9 (see FIG. 1). The first feed rollers 11 are arranged in a row in the longitudinal direction of the machine frame.

[0028] The twist stop guide 12 is intended to prevent the twist imparted to the yarn Y by the false twist device 15, which will be described later, from propagating upstream in the yarn running direction of the twist stop guide 12. The twist stop guide 12 is disposed downstream in the yarn running direction of the first feed roller 11 and upstream in the yarn running direction of the first heating device 13. The twist stop guides 12 are provided, for example, individually for the multiple yarns Y supplied from the yarn supplying section 2, and are arranged in a row in the machine longitudinal direction.

[0029] The first heating device 13 is for heating the yarn Y fed from the first feed roller 11, and is installed on the support frame 10 (see FIG. 1). A plurality of first heating devices 13 are provided corresponding to the plurality of yarns Y supplied from the yarn supplying section 2, and are arranged in a row in the longitudinal direction of the machine.

[0030] The cooling device 14 is for cooling the yarn Y heated by the first heating device 13. The cooling device 14 is arranged downstream in the yarn running direction of the first heating device 13 and upstream in the yarn running direction of the false twist device 15. A plurality of cooling devices 14 are provided for the plurality of yarns Y supplied from the yarn supplying section 2, and are arranged in a row in the machine longitudinal direction.

[0031] The false twist device 15 is a device for imparting twist to the yarn Y. The false twist device 15 is disposed immediately downstream of the cooling device 14 in the yarn running direction. A plurality of false twist devices 15 are arranged in the longitudinal direction of the machine. For example, 16 false twist devices 15 are provided per span.

[0032] The second feed roller 16 is a roller that feeds the yarn Y, which has been twisted by the false twist device 15, toward the intertwining device 17. The second feed roller 16 is disposed on the main machine base 8 downstream of the false twist device 15 in the yarn running direction. The conveyance speed of the yarn Y by the second feed roller 16 is faster than the conveyance 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 intertwining device 17 is a device that intertwines the yarn Y by injecting air onto the yarn Y. The intertwining device 17 is disposed below the second feed roller 16 on the main machine base 8.

[0034] The third feed roller 18 is a roller that sends the yarn Y, which has been entangled by the entangling device 17, toward the second heating device 19. The third feed roller 18 is disposed below the entangling 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. Therefore, the yarn Y is relaxed 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 fed from the third feed roller 18. The second heating device 19 is disposed below the third feed roller 18 on the main machine base 8. The second heating devices 19 extend in the vertical direction, and one is provided for each span.

[0036] The fourth feed roller 20 is a roller that feeds the yarn Y that has been heat-treated by the second heating device 19 toward the winding device 21. The fourth feed roller 20 is disposed below 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. Therefore, the yarn Y is relaxed 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 drawn between the first feed roller 11 and the second feed roller 16 is twisted by the false twist device 15. The twist formed by the false twist device 15 propagates to the twist stop guide 12 but does not propagate upstream of the twist stop guide 12 in the yarn traveling direction. The drawn and twisted yarn Y is heated and heat-set by the first heating device 13 and then cooled by the cooling device 14. The yarn Y is untwisted downstream from the false twist device 15, but the heat-set maintains the wavy false-twisted state of each filament. The yarn Y false-twisted by the false twist device 15 is relaxed between the second feed roller 16 and the third feed roller 18, entangled by the entanglement device 17, and guided downstream in the yarn traveling direction. The yarn Y is then heat-set by the second heating device 19 while being relaxed between the third feed roller 18 and the fourth feed roller 20. Finally, the yarn Y fed from the fourth feed roller 20 is wound by a winding device 21 to form a winding package Pw.

[0038] (Configuration of 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 (a package of the present invention). The bobbin Bw is, for example, a cylindrical member.

[0039] 2, the winding device 21 includes a pair of cradle arms 30 (cradles of the present invention), a contact roller 40, a package storage section 50, a stocker 60, and a moving mechanism 80. Fig. 2 shows a state in which the winding device 21 is in the process of forming a winding package Pw.

[0040] The pair of cradle arms 30 are arranged opposite each other in the longitudinal direction of the machine base. Each of the pair of cradle arms 30 can rotatably support a bobbin holder 70. The pair of cradle arms 30 is configured to be able to clamp a bobbin Bw via the bobbin holder 70. The cradle arms 30 form a winding package Pw by winding the yarn onto the bobbin Bw held by the bobbin holder 70. The pair of cradle arms 30 can also open in the longitudinal direction of the machine base to release the winding package Pw (or the bobbin Bw) from the bobbin holder 70. The pair of cradle arms 30 can move between a winding position and a release position by rotating about a swing shaft 31 extending in the longitudinal direction of the machine base, which is the axial direction of the bobbin holder 70. The winding position is a position where the yarn Y is wound onto the bobbin Bw attached to the bobbin holder 70 to form the winding package Pw, as shown in FIG. 2 . The cradle arm 30 is configured so that the center x1 of the winding package Pw moves from the other side to one side in the width direction of the machine base as the package diameter of the winding package Pw supported by the cradle arm 30 increases. In other words, the winding position of the cradle arm 30 moves from the other side to one side in the width direction of the machine base as the package diameter of the winding package Pw being wound increases. The release position is the position of the cradle arm 30 when the bobbin holder 70 releases its grip on the winding package Pw, as shown in FIG. 3, and is a position where the released winding package Pw can be sent to the package storage section 50. The center x1 of the winding package Pw supported by the cradle arm 30 substantially coincides with the axis of the bobbin holder 70.

[0041] The contact roller 40 is driven to rotate in a fixed direction while contacting the outer peripheral surface of the bobbin Bw or the winding package Pw, thereby rotating the bobbin Bw and winding the yarn Y. The contact roller 40 is a so-called line-drive 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 FIG. 3, the contact roller 40 is disposed on the other side of a vertical plane F passing through the axis of the bobbin holder 70 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 refers to the other side of the vertical plane F in the machine base width direction (the right side of the paper surface in FIG. 3). As shown in FIG. 3, the contact roller 40 is disposed vertically lower than the stocker 60.

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

[0043] As shown in FIG. 2, the package storage section 50 has two rails 53 arranged opposite to each other in the longitudinal direction of the machine base. While FIG. 2 illustrates only the rail 53 arranged on the front side of the page relative to the winding package Pw stored in the package storage section 50 in the longitudinal direction of the machine base, in reality, another rail 53 is arranged on the back side of the page relative to 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 is greater than the width of the winding package Pw formed by winding the yarn Y around 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 end portions 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 downward from the vertical plane F toward one side, i.e., from the other side in the width direction of the machine base (the right side in Figure 3) toward one side (the left side in Figure 3). The rails 53 of the package storage section 50 are also inclined downward from the other side to one side in the width direction of the machine base. Therefore, the winding package Pw released from the cradle arm 30 rolls along the downwardly inclined upper surfaces 51 of the rails 53 from the other side to one side in the width direction of the machine base. Note that a member (not shown) is formed at one end of the package storage section 50 in the width direction of the machine base to prevent the winding package Pw from rolling further to one side in the width direction of the machine base.

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

[0046] The stocker 60 stores bobbins Bw to be supplied to the cradle arm 30. In this embodiment, the stocker 60 can store a maximum of four bobbins Bw. The bobbins Bw stored in the stocker 60 are empty bobbins Bw on which no yarn Y is wound. As shown in FIG. 2, the stocker 60 extends so that the front end on one side in the machine base width direction is lower than the rear end on the other side. Hereinafter, the direction in which the stocker 60 extends will be referred to as the extension direction (see FIG. 5). As shown in FIG. 2, the stocker 60 is disposed at a position 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 movement mechanism 80 linearly moves the stocker 60 between a standby position and a supply position. The standby position is a position where the stocker 60 is on standby when no bobbins Bw are being supplied from the stocker 60 to the cradle arm 30 (see FIGS. 2 and 3). Specifically, the standby position is a position where the stocker 60 is on standby when the yarn Y is being wound onto a bobbin Bw supported by the cradle arm 30, or when a 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 bobbins Bw or winding package Pw supported by the cradle arm 30. As shown in FIG. 3, the stocker 60 in the standby position is located on the other side of the vertical plane F. The supply position is a position of the stocker 60 for supplying a bobbin Bw to the bobbin holder 70 supported by the cradle arm 30 in the release position, from which the bobbin Bw on which the winding package Pw is formed has been removed (see FIG. 4). As shown in FIG. 4, when the stocker 60 is in the supply position, the axis of the bobbin Bw located at the furthest side in the machine width direction among the multiple bobbins Bw stored in the stocker 60 coincides with the axis of the bobbin holder 70 supported by the cradle in the release position.

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

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

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

[0051] 2, the rotation shaft 66 is a rotation shaft that extends in the axial direction of the bobbin holder 70, i.e., in the longitudinal direction of the machine base. The rotation shaft 66 is formed in a lower portion at one end portion of the stocker 60 in the width direction of the machine base.

[0052] The restricting portions 62 are members for preventing the bobbins Bw stored in the stocker 60 from falling out of the stocker 60. The restricting portions 62 are arranged opposite each other in the longitudinal direction of the machine base. The distance between the opposing restricting portions 62 in the longitudinal direction of the machine base is greater than the width of the bobbins Bw in the longitudinal direction of the machine base. The restricting unit 62 is configured to be switchable between a restricting state (the state shown in FIGS. 2, 3, and 6) in which the bobbins Bw stored in the stocker 60 are prevented from falling out of the stocker 60 and a released state (the state shown in FIGS. 4 and 7) in which the restricting state is released. As the stocker 60 moves from the standby position to the supply position, the restricting unit 62 rotates about the rotation shaft 66 in a first direction D1 (see the solid arrow in FIG. 6) to switch from the restricted state to the released state. The first direction D1 is the clockwise direction in FIG. 6. As the stocker 60 moves from the supply position to the standby position, the restricting unit 62 rotates about the rotation shaft 66 in a second direction opposite to the first direction D1 to switch from the released state to the restricted state. The second direction is the counterclockwise direction in FIG. 6. The switching of the state of the restricting unit 62 will be described in detail below. As shown in FIG. 5, two restricting units 62 are arranged opposite each other in the machine base longitudinal direction. The distance between the two restricting portions 62 in the longitudinal direction of the machine base is slightly larger than the width of the bobbin Bw in the longitudinal direction of the machine base.

[0053] 5, the restricting portion 62 includes a claw portion 62a, an arm portion 62b, and an abutting portion 62c. The claw portion 62a restricts the bobbins Bw stored in the stocker 60 from moving from one side to the other side in the machine width direction along the support surface 61, thereby preventing the bobbins Bw from falling out of the stocker 60. The claw portion 62a is connected to the rotation shaft 66 via the arm portion 62b. The claw portion 62a has a plate-like shape.

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

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

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

[0057] The stopper 63 is a portion against which the restricting portion 62, which rotates in the first direction D1, can abut. Specifically, the stopper 63 is a portion against which the other side and upper portion of the arm portion 62b in the width direction of the machine base can abut. The stoppers 63 are arranged facing each other in the longitudinal direction of the machine base. The stoppers 63 are formed on the upper portion of the stocker 60. More specifically, when four bobbins Bw are stored in the stocker 60, and the first to fourth bobbins Bw are arranged in order from the bobbins Bw on one side of the width direction of the machine base, the stopper 63 is formed on the upper portion of the second bobbin Bw. As shown in FIGS. 4 and 7, when the stocker 60 reaches the supply position, the restricting portion 62, which rotates in the first direction D1, abuts against the stopper 63, thereby restricting further rotation of the restricting portion 62 in the first direction D1.

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

[0059] The front end support portion 65 supports from below the bobbin Bw located at the furthest side in the width direction of the machine base among the multiple bobbins Bw stored in the stocker 60. As shown in FIGS. 2 and 5, the front end support portion 65 is provided at the front end and lower portion of the stocker 60, which is close to the cradle arm 30 in the released position. Also, as shown in FIG. 5, the front end support portion 65 extends in the longitudinal direction of the machine base. Furthermore, as shown in FIGS. 6 and 7, when viewed from the longitudinal direction of the machine base, one portion of the front end support portion 65 in the width direction of the machine base has a V-shaped bent 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 the bobbin Bw from falling out of the stocker 60 (see FIGS. 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 accurate positioning of the bobbin Bw. This allows 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. Furthermore, the front-end support portion 65 can rotate about a rotation shaft 66. In this embodiment, the rotation shaft 66 of the restricting portion 62 and the front-end support portion 65 is 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 about the rotation shaft 66, to assume the restricted position. The biasing member 67 is, for example, a spring member. In this embodiment, the biasing member 67 also serves to bias the restricting portion 62, which is rotatable about the rotation shaft 66, to assume the restricted state.

[0062] (Supplying operation of bobbin Bw from stocker 60 to cradle arm 30) Next, the stocker 60 that moves between the standby position and the supply position when the bobbin Bw is supplied to the cradle arm 30, and the accompanying operations of each component 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 release position and sent to the package storage section 50, the stocker 60 is in the standby position (see FIGS. 2 and 3). When the stocker 60 is in the standby position, the restricting section 62 is in the restricting state, and the front end support section 65 is in the restricting position (see FIGS. 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 section 50, the movement 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 in a diagonal direction downward to one side in the machine width direction (diagonally downward to the left on the paper in FIG. 3). In this embodiment, the extension direction of the stocker 60 and the direction in which the stocker 60 moves are approximately the same. Note that FIG. 6 shows the stocker 60 on its way from the standby position toward the supply position.

[0065] As the stocker 60 moves from the standby position to the supply position, the abutment portion 62c comes into contact with the bobbin holder 70 supported by the cradle arm 30 in the release position. More specifically, in FIGS. 3 and 4, the abutment portion 62c of the restricting portion 62 arranged on the far side of the page in the longitudinal direction of the machine base comes into contact with the bobbin holder 70 arranged on the far side of the page in the longitudinal direction of the machine base, and the abutment portion 62c of the restricting portion 62 arranged on the near side of the page in the longitudinal direction of the machine base comes into contact with the bobbin holder 70 arranged 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 abutment portion 62c and the bobbin holder 70 are in contact, the abutment portion 62c is pressed by the bobbin holder 70. As a result, the restricting portion 62 of the stocker 60 rotates about the first rotation shaft 66 in the first direction D1 (see FIG. 6) and switches from the restricted state to the released state. When the stocker 60 reaches the supply position, the restricting portion 62 is released (see FIGS. 4 and 7). For ease of explanation, the cradle arm 30 and the bobbin holder 70 on the front side of the paper in the longitudinal direction of the machine base are not shown in FIGS.

[0066] 7, when the stocker 60 reaches the supply position, the restricting portion 62 comes into contact with the stopper 63. This restricts further rotation of the restricting portion 62 in the first direction D1. In other words, the restricting portion 62 is sandwiched between the bobbin holder 70 supported by the cradle arm 30 in the released position and the stopper 63, thereby restricting rotation of the restricting portion 62 and restricting further movement of the stocker 60 beyond the supply position.

[0067] When the stocker 60 reaches the supply position, one of the bobbins Bw stored in the stocker 60, supported from below by the front-end support portion 65, is attached to the bobbin holder 70 supported by the cradle arm 30 in the release position. Explaining in more detail, when the stocker 60 reaches the supply position, the restricting portion 62 is in the release state, and therefore the restriction by the arm portion 62b is released on both sides in the longitudinal direction of the machine base of the bobbin Bw supported from below by the front-end support portion 65 (see FIG. 7). In this state, the bobbin holder 70 closes inward in the longitudinal direction of the machine base against the hollow portion of the cylindrical bobbin Bw from both sides of the bobbin Bw in the longitudinal direction of the machine base, thereby sandwiching the bobbin Bw between the bobbin holders 70.

[0068] When the bobbin Bw is supported by the cradle arm 30, the movement mechanism 80 moves the stocker 60 linearly from the supply position toward 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 release position, to the other side in the machine width direction. As a result, the restricting unit 62, whose abutting portion 62c is in contact with the bobbin holder 70 supported by the cradle arm 30 in the release position, rotates about the rotation axis 66 in a second direction opposite to the first direction D1, switching from the release state to the restricted state. Then, when the abutting portion 62c is released from contact with the bobbin holder 70, the restricting unit 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 portion 65 is pressed by the bobbin Bw supported by the cradle arm 30 in the release position. As a result, the front-end support portion 65 rotates around the rotation shaft 66 against the biasing force of the biasing member 67 so as to avoid the bobbin Bw. In other words, the front-end support portion 65 rotates around the rotation shaft 66 against the biasing force of the biasing member 67 so that its tip portion is lower than its base portion connected to the rotation shaft 66. Then, when the stocker 60 further moves toward the standby position and the front-end support portion 65 and the bobbin Bw no longer come into contact with each other, the front-end support portion 65 returns to the restricting position due to the biasing force of the biasing member 67. Note that, as the stocker 60 returns from the supply position to the standby position, the bobbins Bw remaining in the stocker 60 move along the inclined support surface 61. Of the plurality of bobbins Bw remaining in the stocker 60, the bobbin Bw located at the furthest one side in the width direction of the machine base is supported from below by the front end support portion 65 that has returned to the regulated position.

[0070] By the above operations, the supply operation of the bobbin Bw from the stocker 60 to the cradle arm 30 is completed.

[0071] (effect) The winding device 21 of this embodiment includes a package storage unit 50 located on one side of a vertical plane F, a stocker 60 located on the other side of the vertical plane F, and a movement mechanism 80 that moves the stocker 60 between a standby position and a supply position. The movement mechanism 80 moves the stocker 60 linearly between the standby position and the supply position. This prevents the stocker 60 from passing above both the standby position and the supply position while moving from the standby position to the supply position, eliminating the need for additional space above the winding device 21. However, even when the stocker 60 is moved linearly, if the stocker 60 is located above the package storage unit 50, as in Patent Document 2, for example, the stocker 60 is positioned higher, limiting the reduction in the height of the winding device 21. This is because the winding package Pw released from the cradle arm 30 passes below the stocker 60 and is sent to the package storage unit 50. Therefore, the distance between the stocker 60 and the package storage unit 50 needs to be large enough to allow the winding package Pw to pass through. In this regard, in the present embodiment, the stocker 60 is disposed on the opposite side of the package storage section 50 across the vertical plane F. Therefore, the stocker 60 can be disposed at a low position while preventing the stocker 60 from passing through a position above both the standby position and the supply position, thereby effectively reducing the height of the winding device 21.

[0072] In the winding device 21 of this embodiment, the stocker 60 is provided with a restricting unit 62 that can be switched between a restricting state and a released state. The restricting unit 62 is released when the stocker 60 reaches the supply position. As a result, the restricting unit 62 in the restricting state can prevent the bobbins Bw from falling out of the stocker 60 until the stocker 60 reaches the supply position. Furthermore, because the restricting unit 62 is released when the stocker 60 reaches the supply position, the supply of the bobbins Bw from the stocker 60 to the cradle arm 30 is not hindered by the restricting unit 62. This allows the stocker 60 to reliably store the bobbins Bw while appropriately supplying the bobbins 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 come into contact with the bobbin holder 70 supported by the cradle arm 30 in the release position. As the stocker 60 moves from the standby position to the supply position, the contact portion 62c is pressed by the bobbin holder 70, causing the restricting unit 62 to rotate about the rotation shaft 66 in the first direction D1 and switch from the restricted state to the released state. As the stocker 60 moves from the supply position to the standby position, contact between the contact portion 62c and the bobbin holder 70 is released, causing the restricting unit 62 to rotate about the rotation shaft 66 in the second direction opposite to the first direction D1 and switch from the released state to the restricted state. This allows the restricting unit 62 to switch between the released state and the restricted state depending on whether the contact portion 62c comes into contact with the bobbin holder 70 as the stocker 60 moves. This eliminates the need for a drive source for switching the state of the restricting unit 62.

[0074] In the winding device 21 of this embodiment, the stocker 60 has a stopper 63 against which the restricting portion 62 rotating in the first direction D1 can abut. When the stocker 60 reaches the supply position, the restricting portion 62, which rotates in the first direction D1 as a result of the abutment portion 62c being pressed by the bobbin holder 70, abuts against the stopper 63, thereby restricting further rotation in the first direction D1. This prevents the bobbin holder 70 from further pressing the abutting portion 62c of the restricting portion 62, i.e., restricts further movement of the stocker 60. This makes it possible to prevent the stocker 60 from moving further beyond the supply position, thereby enabling appropriate supply of bobbins Bw from the stocker 60 to the cradle arm 30.

[0075] Furthermore, in the winding device 21 of this embodiment, the stocker 60 is provided with a second restricting unit 64 that prevents the bobbins Bw stored in the stocker 60 from jumping 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 bobbins Bw. Therefore, even after the stocker 60 reaches the supply position, the bobbins Bw tend to move in the direction of movement of the stocker 60, past the cradle arm 30, which is in the released position. However, when the stocker 60 reaches the supply position, the restricting unit 62 is released and therefore cannot restrict the movement of the bobbins Bw. Therefore, there is a risk that the bobbins Bw stored in the stocker 60 will jump out beyond the cradle arm 30. In this case, the bobbins Bw cannot be properly supplied to the cradle arm 30. According to this embodiment, since the second restricting portion 64 is provided, when the stocker 60 reaches the supply position, the bobbin Bw can be prevented from moving beyond the cradle arm 30, which is in the release position, due to inertial force. This makes it possible to more reliably supply the bobbin Bw from the stocker 60 to the cradle arm 30.

[0076] In the winding device 21 of this embodiment, a front end support portion 65 that supports the bobbin Bw from below is provided at the front end of the stocker 60 near the cradle arm 30 in the released position. The front end support portion 65 can assume a restricting position that prevents the bobbin Bw from falling out of the stocker 60 and is rotatable about a rotation shaft 66. The stocker 60 further includes a biasing member 67 that biases the front end support portion 65 to assume the restricting 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 released position, and rotates about the rotation shaft 66 against the bias 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 the standby position after the supply of the bobbin Bw from the stocker 60 to the cradle arm 30 is complete, the front end support portion 65, which is trying to prevent the bobbin Bw from falling out, may get caught on the bobbin Bw supported by the cradle, which could hinder 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, which could hinder the movement of the stocker 60 to the standby position. Therefore, the stocker 60 can be smoothly returned to the standby position after the supply of the bobbin Bw to the cradle arm 30, and the subsequent winding operation of the yarn Y can be performed quickly.

[0077] (Variation) The following describes modifications of the above embodiment, but the same reference numerals are used to designate components having the same configuration as the above embodiment, and the description thereof will be omitted as appropriate.

[0078] In the above embodiment, the restricting unit 62 is configured to switch from the restricted state to the released state when the contact portion 62c is pressed by the bobbin holder 70 as the stocker 60 moves from the standby position to the supply position. However, the restricting unit 62 that can be switched between the restricted state and the released state is not limited to the above configuration. For example, the restricting unit 62 may be configured to be switched between the restricted state and the released state by a transmission motor.

[0079] In the above embodiment, the restricting portion 62 can be switched between the restricted state and the released state by rotating about the rotation shaft 66. However, the restricting portion 62 is not limited to a configuration that rotates about the rotation shaft 66. For example, the restricting portion 62 may be configured to be switched between the restricted state and the released state by sliding in a direction intersecting the extension direction of the stocker 60.

[0080] In the above embodiment, the stocker 60 at the standby position moves linearly in a direction that is approximately the same as the extension direction of the stocker 60, in a diagonal direction that extends diagonally downward to one side in the width direction of the machine base (diagonal downward to the left on the plane of FIG. 3). However, the stocker 60 at the standby position may also move linearly in a diagonal direction that extends diagonally upward to one side in the width direction of the machine base (for example, diagonal upward to the left on the plane of FIG. 3) or in a horizontal direction. In this case, a pushing mechanism or the like is disposed in the stocker 60 for pushing the bobbins Bw stored in the stocker 60 from the rear end toward the front end of the stocker 60 in the extension direction. Furthermore, the extension direction of the stocker 60 and the direction in which the stocker 60 moves linearly do not have to approximately coincide.

[0081] In the above embodiment, the single rotation shaft 66 corresponds to both the first rotation shaft and the second rotation shaft of the present invention. However, the first rotation shaft, which is the rotation center of the restriction portion 62, and the second rotation 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 the restricting portion 62 that can be switched between a restricting state and a released state. However, the stocker 60 does not have to have the restricting portion 62. In this case, the stocker 60 is preferably provided with a member for preventing 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 to the supply position.

[0083] In the above embodiment, the stocker 60 has the second restricting portion 64 that prevents the bobbins Bw stored in the stocker 60 from flying out beyond the bobbin holder 70 when the restricting portion 62 is in the released state. However, the stocker 60 does not have to have the second restricting portion 64. In this case, the moving mechanism 80 preferably sets the moving speed of the stocker 60 moving 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 bobbins Bw from flying out beyond the bobbin holder 70 from the stocker 60 that has reached the supply position. This suppresses the inertial force acting on the bobbins Bw when the stocker 60 moves from the standby position to the supply position, thereby preventing the bobbins Bw from falling out of the stocker 60.

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

[0085] In the above embodiment, the stocker 60 has the front end support portion 65. However, the stocker 60 does not have to have the front end support portion 65. In this case, it is preferable that the stocker 60 is provided with a restriction portion 64.

[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, and can also be applied to a winding device of a rewinder.

[0087] In the above embodiment, the cradle arm 30 is configured to be movable between a winding position and a release position. However, the cradle arm does not have to be one that moves between the winding position and the release position. For example, if the contact roller 40 is not a line-drive type in which multiple spindles are connected to a common drive shaft, the cradle arm may be a fixed type (see JP 2015-40116 A, etc.). In this case, the winding position and the release position of the cradle arm are the same position. [Explanation of symbols]

[0088] 1 False twisting machine 21 Winding device 30 Cradle Arm (Cradle) 40 Contact roller 50 Package storage section 60 Stocker 62 Regulatory Department 62c Contact part 63 Stopper 64 Second Regulatory Department 65-face end support 66 Rotation axis (first rotation axis and second rotation axis) 67 biasing member 70 Bobbin holder 80 Moving mechanism Bw bobbin Pw Winding package (package) Y thread

Claims

1. a cradle that can rotatably support a bobbin holder, that can form a package by winding a yarn onto a bobbin held by the bobbin holder, and that can release the package from the holding of the bobbin holder; a package storage section that stores the package released from the cradle; a stocker that stores the bobbins to be supplied to the cradle; a moving mechanism that moves the stocker between a standby position and a supply position where the stocker supplies the bobbin to the cradle that is in a release position where the bobbin holder releases the grip of the package, the package storage section is disposed on one side of a vertical plane passing through an axis of the bobbin holder supported by the cradle in the released position, the stocker in the standby position is disposed on the other side of the vertical plane, The winding device is characterized in that the movement mechanism moves the stocker linearly between the standby position and the supply position.

2. a restricting portion is provided at a front end portion of the stocker near the cradle in the released position, the restricting portion being switchable between a restricted state in which the bobbins stored in the stocker are prevented from falling out of the stocker and a released state in which the restricted state is released, 2. The winding device according to claim 1, wherein the restricting portion is in the released state when the stocker reaches the supply position.

3. the stocker has a first rotation axis along the axial direction of the bobbin holder, The restriction portion is a contact portion that can contact the bobbin holder supported by the cradle in the release position; As the stocker moves from the standby position to the supply position, the abutting portion is pushed by the bobbin holder, causing the stocker to rotate in a first direction about the first rotation shaft and switch from the restricted state to the released state, The winding device described in claim 2, characterized in that as the stocker moves from the supply position to the standby position, contact between the abutment portion and the bobbin holder is released, causing the stocker to rotate around the first rotation axis in a second direction opposite to the first direction, switching from the released state to the regulated state.

4. the stocker has a stopper that can be contacted by the restricting portion that rotates in the first direction, The winding device described in claim 3, characterized in that when the stocker reaches the supply position, the regulating portion, which rotates in the first direction as the abutting portion is pressed by the bobbin holder, abuts against the stopper to regulate further rotation in the first direction.

5. A winding device as described in any one of claims 2 to 4, characterized in that the stocker is provided with a second regulating section that prevents the bobbins stored in the stocker from flying out beyond the bobbin holder when the stocker reaches the supply position and the regulating section is in the released state.

6. a front end support portion that supports the bobbin from below is provided at a front end portion of the stocker that is close to the cradle in the release position, the front end support portion is capable of taking a restricting position that prevents the bobbin from falling off the stocker, and is rotatable around a second rotation axis that is aligned with the axial direction of the bobbin holder, the stocker further includes a biasing member that biases the front end support portion to the restricted position, A winding device as described in claims 1 to 5, characterized in 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 release position, and rotates around the second rotation axis against the force of the biasing member to avoid the bobbin.

Images