Winding device and winding machine

Abstract

To prevent the height dimension of a winding device from increasing.SOLUTION: A winding device 21 includes a cradle arm 30, a package storage section 50, a stocker 60 with a first support surface 61 and a contact roller 40. The stocker 60 is located on one side bordering a vertical plane F, and the package storage section 50 is located on the other side. The contact roller 40 is disposed on one side bordering the vertical plane F and lower than the stocker 60. In the vertical direction, the first support surface 61 is lower than an upper end t1 of the virtual maximum circumference of a winding package Pw supported by the cradle arm 30 in the released position. In the vertical direction, a rotation center 40a of the contact roller 40 is above a lower end t2 of the virtual maximum circumference of the winding package Pw supported on the cradle arm 30 in the released position.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a winding device and a winding installation having the winding device. [Background technology]

[0002] Patent Document 1 discloses a false twisting machine that applies false twisting to yarn. The false twisting machine of Patent Document 1 has a yarn supplying section that supplies yarn, a winding device that winds the yarn, and a heating device, a cooling device, and a false twisting device that are arranged in the yarn path from the yarn supplying section to the winding device. The winding device has a cradle that rotatably supports a bobbin holder, and winds the yarn onto a bobbin attached to the bobbin holder to form a package.

[0003] When a full package is formed in the winding device, the full package is removed from the cradle, and a new empty bobbin is supplied to the cradle. Patent Document 2 describes a winding device having a stocker (empty bobbin supply path in Patent Document 2) that stores empty bobbins to be supplied to the cradle, and a package storage section (package tray in Patent Document 2) that stores full packages dispensed from the cradle. After the full package removed from the cradle is sent to the package storage section, the empty bobbin stored in the stocker is supplied to the cradle, completing the bobbin replacement.

[0004] In the configuration of Patent Document 2, both the stocker and the package storage section are arranged on one side of the cradle in a direction perpendicular to the axial direction of the bobbin holder, and the stocker is arranged above the package storage section. Therefore, a full package removed from the cradle passes below the stocker and is sent to the package storage section. [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. 10-279188 Summary of the Invention [Problem to be solved by the invention]

[0006] If the vertical distance between the stocker and the package storage section is small, there is a risk that the full package and the stocker will come into contact when the full package removed from the cradle is sent to the package storage section. This could result in problems such as impeding the movement of the full package to the package storage section or reducing package quality. For this reason, the vertical distance between the stocker and the package storage section needs to be large enough to avoid contact between the stocker and the full package being sent to the package storage section.

[0007] However, as the vertical distance between the stocker and the package storage unit increases, the height of the entire winding device increases. In particular, in a configuration in which winding devices are arranged in multiple vertical tiers, as in Patent Document 1, the height of the entire false twisting machine increases as the number of winding devices arranged in the vertical direction increases. Furthermore, with regard to the stocker and package storage unit of the winding device located at the top of the multiple tiers of winding devices arranged in multiple tiers, it becomes difficult for an operator to refill the stocker with empty bobbins or remove a full package from the package storage unit.

[0008] 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]

[0009] The winding device of the present invention comprises a cradle that can rotatably support a bobbin holder and is movable between a winding start position where a yarn is wound around a bobbin attached to the bobbin holder and the formation of a package begins, and a release position where the package is released from the bobbin holder; a package storage section that stores the package released from the cradle in the release position; a stocker that has a first support surface that supports the bobbin from below and stores the bobbin to be supplied to the cradle; and a contact roller that rotates while contacting the outer peripheral surface of the package, and the cradle that is in the release position passes through the axis of the bobbin holder supported by the cradle. The stocker is arranged on one side of a vertical plane, and the package storage section is arranged on the other side of the vertical plane, the contact roller is arranged on the one side of the vertical plane and at a position lower than the stocker, the first support surface of the stocker is located below the upper end of an imaginary maximum periphery of the package supported by the cradle in the released position when the package is wound up to a predetermined maximum winding diameter, and the center of rotation of the contact roller is located above the lower end of the imaginary maximum periphery of the package supported by the cradle in the released position.

[0010] According to the present invention, the stocker is disposed 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 package storage section is disposed on the other side. Therefore, when a full package released from the cradle in the release position is sent to the package storage section, there is no need to consider the possibility of contact between the full package and the stocker. In a winding device configured in this manner, the first support surface of the stocker is located below the upper end of the imaginary maximum circumferential surface of the package supported by the cradle in the release position, and the center of rotation of the contact roller, which is positioned lower than the stocker, is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the release position. As a result, the height of the winding device can be prevented from increasing without hindering the delivery of the full package to the package storage section.

[0011] In the winding device of the present invention, it is preferable that the stocker is capable of storing multiple bobbins, and that in the vertical direction, the upper end of at least one of the bobbins stored in the stocker is lower than the upper end of the imaginary maximum peripheral surface of the package supported by the cradle in the released position.

[0012] According to the present invention, a larger portion of the stocker can be positioned vertically below the upper end of the imaginary maximum periphery of the package supported by the cradle in the released position, thereby further preventing the height dimension of the winding device from increasing.

[0013] In the winding device of the present invention, it is preferable that the cradle is movable between the winding start position and the release position by swinging around a swing axis extending in the axial direction of the bobbin holder, and that the package storage section has a second support surface that supports the package released from the cradle from below, and that in the vertical direction, the second support surface is located above the swing axis and below the center of the package supported by the cradle in the release position.

[0014] According to the present invention, the second support surface of the package storage section can be placed in a vertical area above the swing axis of the cradle and below the center of the package supported by the cradle in the released position, thereby preventing an increase in the height of the winding device due to the package storage section.

[0015] In the winding device of the present invention, it is preferable that, in the vertical direction, the second support surface is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the release position.

[0016] According to the present invention, the second support surface of the package storage unit can be positioned as high as possible in the vertical direction while still being below the center of the package supported by the cradle in the released position, thereby further suppressing an increase in the height of the winding device due to the package storage unit.

[0017] In the winding device of the present invention, it is preferable that the package storage section has a second support surface that supports the package released from the cradle from below, and that in the vertical direction, the second support surface is located above the lower end of the imaginary maximum periphery of the package supported by the cradle in the released position and below the center of the package supported by the cradle in the released position.

[0018] According to the present invention, the second support surface of the package storage section can be positioned vertically within an area above the lower end of the imaginary maximum circumferential surface supported by the cradle in the released position and below the center of the package supported by the cradle in the released position, thereby suppressing an increase in the height of the winding device due to the package storage section.

[0019] The winding device of the present invention preferably includes a bobbin supply unit that supplies the bobbin from the stocker to the cradle.

[0020] Generally, in a configuration in which the entire stocker swings about a rotation axis extending in the axial direction of the bobbin holder to supply bobbins to the cradle, the swinging stocker passes above the stocker before swinging. In such a configuration, it is necessary to secure space above the winding device for swinging the stocker, which increases the effective height of the winding device. According to the present invention, a bobbin supply unit is provided separately from the stocker to supply bobbins stored in the stocker to the cradle, thereby suppressing an increase in the height of the winding device due to swinging the entire stocker.

[0021] In the winding device of the present invention, it is preferable that the package storage section be capable of storing a plurality of the packages and be inclined downward along a direction from the vertical plane toward the other side.

[0022] According to the present invention, even if multiple packages are released from the cradle and sent to the package storage section, each package is sent in sequence along the slope of the package storage section in a direction away from the vertical plane. Therefore, when multiple packages are to be stored in the package storage section, there is no need to provide a separate device for sending each package in a direction away from the vertical plane, and an increase in the height of the winding device can be suppressed.

[0023] The winding facility of the present invention is characterized in that a plurality of any one of the above winding devices are arranged in a vertical line.

[0024] By using the winding device according to the present invention, the height of each winding device can be prevented from increasing. Therefore, for a plurality of winding devices arranged vertically, the height from the top winding device to the bottom winding device can be reduced. This allows workers to easily access the stockers and package storage units of the winding devices located above. This makes it easier for workers to refill the stockers with empty bobbins and remove full packages from the package storage units. [Brief explanation of the drawings]

[0025] [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 bobbin supply position. [Figure 5]10 is a schematic diagram of the winding device when the cradle arm has moved to the winding start position again. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0027] (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.

[0028] 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.

[0029] The yarn supplying section 2 has a creel stand 7 that holds multiple yarn supply packages Ps, and supplies multiple 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 intertwining device 17, a third feed roller 18, a second heating device 19, and a fourth feed roller 20. The winding section 4 has a winding facility 5 in which multiple winding devices 21 (four in this embodiment) are arranged vertically. In the winding facility 5, the winding device 21 winds the yarn Y that has been false twisted in the processing section 3 onto a bobbin Bw to form a winding package Pw.

[0030] 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.

[0031] 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.

[0032] (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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] (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.

[0044] As shown in Fig. 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, and a stocker 60. Fig. 2 shows a state in which the winding device 21 is in the process of forming a winding package Pw.

[0045] The pair of cradle arms 30 are arranged opposite to 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 pair of cradle arms 30 can move between a winding start position and a release position by rotating about a swing shaft 31 that extends in the longitudinal direction of the machine base, which is the axial direction of the bobbin holder 70. The winding start position, as shown in FIG. 5, is a position where the yarn Y is wound around the bobbin Bw attached to the bobbin holder 70 to start forming a winding package Pw (package of the present invention). The release position, as shown in FIG. 3, is a position where the cradle arm 30 releases the winding package Pw from the bobbin holder 70 and where the released winding package Pw can be sent to the package storage unit 50. The cradle arm 30 is configured so that the center x1 of the winding package Pw moves from one side to the other in the machine width direction as the package diameter of the winding package Pw supported by the cradle arm 30 increases (see FIGS. 2 and 3). The center x1 of the winding package Pw supported by the cradle arm 30 substantially coincides with the axis of the bobbin holder 70.

[0046] 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 driven by a motor (not shown). As shown in FIG. 3, the contact roller 40 is disposed on one side of a vertical plane F passing through the axis of the bobbin holder 70 supported by the cradle arm 30 in the release 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 "one side of the vertical plane F" refers to one side of the vertical plane F in the width direction of the machine base (the left side of the paper surface in FIG. 3). As shown in FIG. 3, the contact roller 40 is disposed at a position lower than the stocker 60 in the vertical direction. Furthermore, as shown in FIG. 3, the rotation center 40a of the contact roller 40 is vertically located above the lower end t2 of the imaginary maximum peripheral surface of the winding package Pw supported by the cradle arm 30 in the release position. The imaginary maximum circumferential surface of the winding package Pw refers to the circumferential surface of the winding package Pw when the winding package Pw has a maximum winding diameter defined in the mechanical specifications of the winding device 21. The maximum winding diameter of the winding package Pw defined in the mechanical specifications of the winding device 21 is, for example, 250 mm. Note that, for convenience, in FIG. 3, the lower end of the circumferential surface of the fully wound winding package Pw is designated as t2, but the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw may be located below the lower end of the circumferential surface of the fully wound winding package Pw.

[0047] 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 the other side of the vertical plane F. In this embodiment, the other side of the vertical plane F refers to the other side of the vertical plane F in the machine width direction (the right side of the paper in FIG. 3).

[0048] As shown in FIG. 2, the package storage section 50 has two rails 53 arranged opposite each other 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 the yarn Y around the bobbin Bw in the longitudinal direction of the machine base. A second support surface 51 is formed on the upper surface of each rail 53. The second support surface 51 supports the winding package Pw from below after it has been released from the cradle arm 30. More specifically, the two second support surfaces 51 support both ends of the bobbin Bw on which the winding package Pw is formed from below, thereby supporting the winding package Pw from below. As shown in FIG. 3, in the vertical direction, the second support surface 51 is located above the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the released position and below the center x1 of the winding package Pw supported by the cradle arm 30 in the released position.

[0049] As shown in Figure 3, the package storage section 50 is inclined downward from the vertical plane F toward the other side, i.e., from one side in the width direction of the machine base (the left side of the paper in Figure 3) to the other side (the right side of the paper in Figure 3). The second support surface 51 of the package storage section 50 is also inclined downward from one side to the other in the width direction of the machine base. Therefore, the winding package Pw released from the cradle arm 30 rolls from one side to the other in the width direction of the machine base along the downwardly inclined second support surface 51. Note that a stopper (not shown) is formed at the end on the other side in the width direction of the machine base of the package storage section 50 to prevent the winding package Pw from rolling further to the other side in the width direction of the machine base.

[0050] 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 a yarn breakage occurs during winding of the yarn Y by the winding device 21.

[0051] 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. 3, the stocker 60 is disposed on one side of a vertical plane F. The stocker 60 is disposed at a position higher than the package storage section 50 and the contact roller 40 in the vertical direction.

[0052] The stocker 60 has a first support surface 61 that supports the bobbins Bw from below. As shown in Fig. 3, in the vertical direction, the first support surface 61 is located below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. Furthermore, the upper end of at least one bobbin Bw stored in the stocker 60 is located below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. In this embodiment, the upper ends of three bobbins Bw on the other side in the machine frame width direction among the multiple bobbins Bw stored in the stocker 60 are located below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position.

[0053] In addition, the stocker 60 is positioned so as not to overlap in the machine width direction with the winding package Pw supported by the cradle arm 30, which moves from the winding start position to the release position as the yarn Y is wound.

[0054] Furthermore, the winding device 21 has a bobbin supply unit 80 that supplies bobbins Bw from the stocker 60 to the cradle arm 30. The bobbin supply unit 80 has an arm unit 63 extending vertically and a bobbin support unit 64 formed on the upper end portion of the arm unit 63. The arm unit 63 is capable of swinging around a rotation shaft 62 provided on the lower end portion thereof and extending in the longitudinal direction of the machine base. The bobbin support unit 64 is capable of supporting one bobbin Bw. The bobbin support unit 64 is capable of restricting movement of the bobbin Bw to the other side in the width direction of the machine base. The bobbin support unit 64 is connected to the first support surface 61. The bobbin support unit 64 is capable of swinging integrally with the arm unit 63.

[0055] As shown in FIGS. 3 and 4, when a bobbin Bw is supplied from the stocker 60 to the cradle arm 30, the arm portion 63 rotates clockwise about the rotation axis 62 when viewed from the longitudinal direction of the machine base. When the arm portion 63 and the bobbin support portion 64 swing together, the bobbin Bw that is located on the other side of the machine base width direction among the multiple bobbins Bw supported by the first support surface 61 moves to the bobbin support portion 64 and becomes supported by the bobbin support portion 64. The bobbin Bw that is now supported by the bobbin support portion 64 swings together with the arm portion 63 and the bobbin support portion 64 and is supplied to the bobbin holder 70 supported by the cradle arm 30 (see FIG. 4). When the supply of the bobbin Bw to the cradle arm 30 is completed, the arm portion 63 and the bobbin support portion 64 return to their original positions, i.e., the positions where the bobbin support portion 64 is connected to the first support surface 61 (see FIG. 5). The swinging of the arm portion 63 is driven by, for example, a motor (not shown).

[0056] (Bobbin replacement operation) Next, in the winding device 21 of this embodiment, a series of operations from removing the fully wound winding package Pw from the cradle arm 30 to supplying an empty bobbin Bw to the cradle arm 30 will be described below with reference to Figures 2 to 5.

[0057] First, the yarn Y is wound onto the bobbin Bw supported by the cradle arm 30 at the winding start position, and the formation of the winding package Pw begins. When the winding package Pw is fully wound, the cradle arm 30 rotates around the swing shaft 31 to move to the release position (see FIG. 3). Then, the fully wound winding package Pw is released from the cradle arm 30.

[0058] The full winding package Pw released from the cradle arm 30 at the release position is sent from one side to the other in the machine width direction along the inclination of the package storage section 50, as shown in Fig. 4. Thereafter, as shown in Fig. 4, the arm section 63 rotates integrally with the bobbin support section 64 around the rotation shaft 62, and the bobbin Bw furthest to the other side in the machine width direction among the multiple bobbins Bw stored in the stocker 60 is supplied to the cradle arm 30 at the release position.

[0059] Then, the cradle arm 30, which now supports the empty bobbin Bw with no yarn Y wound thereon at the release position, moves to the winding start position by rotating about the swing shaft 31, as shown in Fig. 5. Then, the yarn Y is again wound onto the bobbin Bw supported by the cradle arm 30.

[0060] (effect) The winding device 21 of this embodiment includes a cradle arm 30 that can move between a winding start position and a release position, a package storage unit 50, a stocker 60 having a first support surface 61, and a contact roller 40. The stocker 60 is disposed on one side of a vertical plane F that passes through the axis of a bobbin holder 70 supported by the cradle arm 30 in the release position, and the package storage unit 50 is disposed on the other side of the vertical plane F. The contact roller 40 is disposed on one side of the vertical plane F and at a lower position than the stocker 60. In the vertical direction, the first support surface 61 of the stocker 60 is lower than the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. In addition, in the vertical direction, the rotation center 40a of the contact roller 40 is higher than the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. In this embodiment, the stocker 60 is disposed on one side of the vertical plane F, and the package storage section 50 is disposed on the other side. Therefore, when a full winding package Pw released from the cradle arm 30 in the release position is sent to the package storage section 50, there is no need to consider the possibility of the full winding package Pw coming into contact with the stocker 60. In the winding device 21 configured as described above, the first support surface 61 of the stocker 60 is located below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position, and the rotation center 40a of the contact roller 40 is located above the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. As a result, an increase in the height of the winding device 21 can be suppressed without impeding the sending of the full winding package Pw to the package storage section 50.

[0061] In the winding device 21 of this embodiment, the stocker 60 can store multiple bobbins Bw. In the vertical direction, the upper end of at least one bobbin Bw stored in the stocker 60 is located below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arms 30 in the release position. This allows a greater portion of the stocker 60 in the vertical direction to be positioned below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arms 30 in the release position, further preventing the height dimension of the winding device 21 from increasing.

[0062] In the winding device 21 of this embodiment, the cradle arm 30 can move between a winding start position and a release position by swinging about the swing shaft 31. The package storage section 50 has a second support surface 51 that supports the winding package Pw released from the cradle arm 30 from below. In the vertical direction, the second support surface 51 is located above the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position and below the center x1 of the winding package Pw supported by the cradle arm 30 in the release position. This allows the second support surface 51 to be positioned as high as possible in the vertical direction within a range below the center x1 of the winding package Pw supported by the cradle arm 30 in the release position. This further reduces an increase in the height of the winding device 21 due to the package storage section 50.

[0063] The winding device 21 of this embodiment has a bobbin supply unit 80 that supplies bobbins Bw from the stocker 60 to the cradle arm 30. Generally, in a configuration in which the entire stocker 60 swings around a rotation axis extending in the axial direction of the bobbin holder 70 to supply bobbins Bw to the cradle arm 30, the swinging stocker 60 passes above the stocker 60 before swinging. In such a configuration, it is necessary to ensure space above the winding device 21 for swinging the stocker 60, which increases the effective height of the winding device 21. According to this embodiment, the bobbin supply unit 80 that supplies bobbins Bw stored in the stocker 60 to the cradle arm 30 is disposed separately from the stocker 60, thereby suppressing an increase in the height of the winding device 21 caused by swinging the entire stocker 60.

[0064] In the winding device 21 of this embodiment, the package storage section 50 is capable of storing multiple winding packages Pw and is inclined downward in a direction from the vertical plane F toward the other side. Accordingly, even if multiple winding packages Pw are released from the cradle arm 30 and sent to the package storage section 50, each winding package Pw is sent sequentially in a direction from the vertical plane F toward the other side along the inclination of the package storage section 50. Therefore, when multiple winding packages Pw are to be stored in the package storage section 50, there is no need to separately provide a device for sending each winding package Pw in a direction from the vertical plane F toward the other side, and an increase in the height dimension of the winding device 21 can be suppressed.

[0065] In the winding equipment 5 of this embodiment, the winding devices 21 are arranged in four vertical tiers. By using the winding devices 21 of this embodiment, the height of each winding device 21 can be prevented from increasing, and therefore, for the winding devices 21 arranged in four vertical tiers, the height from the uppermost winding device 21 to the lowermost winding device 21 in the vertical direction is reduced. This allows an operator to easily access the stocker 60 and package storage unit 50 of the winding device 21 located above. This makes it easy for an operator to refill the stocker 60 with empty bobbins Bw and remove full winding packages Pw from the package storage unit 50.

[0066] (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.

[0067] In the above embodiment, the upper end of at least one bobbin Bw among the multiple bobbins Bw stored in the stocker 60 is located vertically below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. However, the upper ends of all of the multiple bobbins Bw stored in the stocker 60 may be located vertically above the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position. In this case, the first support surface 61 is located vertically below the upper end t1 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arm 30 in the release position.

[0068] In the above embodiment, the bobbins Bw stored in the stocker 60 are supplied to the cradle arm 30 by the arm portion 63 of the bobbin supply unit 80 rotating integrally with the bobbin support portion 64 around the rotation axis 62. However, the winding device 21 does not have to have the bobbin supply unit 80. In this case, the bobbin supply unit 80 may be provided below the stocker 60, and the entire stocker 60 may rotate downward around a rotation axis extending in the axial direction of the bobbin holder 70, thereby supplying the bobbins Bw stored in the stocker 60 to the cradle arm 30. Alternatively, the stocker 60 may not move, but the cradle arm 30 may rotate around the swing axis 31 to be movable to a position where it can receive the bobbins Bw from the stocker 60.

[0069] In the above embodiment, the second support surface 51 is located vertically above the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arms 30 in the released position. However, the second support surface 51 may be located below the lower end t2 of the imaginary maximum circumferential surface of the winding package Pw supported by the cradle arms 30 in the released position. In this case, it is preferable that the second support surface 51 is located above the swing shaft 31 of the cradle arms 30.

[0070] In the above embodiment, the cradle arm 30 can move between the winding start position and the release position by swinging around the swing shaft 31. However, the cradle arm 30 may be moved between the winding start position and the release position by a method other than swinging. For example, the cradle arm 30 may move along a rail (not shown).

[0071] In the above embodiment, the stocker 60 is disposed vertically above the package storage section 50. However, the stocker 60 may also be disposed vertically below the package storage section 50.

[0072] 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.

[0073] The winding devices 21 in the above embodiment are arranged in four rows in the vertical direction. However, the winding devices 21 may be arranged in two or three rows in the vertical direction, or in five or more rows, or even in one row. Furthermore, in the above embodiment, multiple winding devices 21 of the false twisting machine 1 are arranged in the vertical direction, but multiple winding devices of other textile machines such as rewinders may also be arranged in the vertical direction. [Explanation of symbols]

[0074] 1 False twisting machine 5 Winding equipment 21 Winding device 30 Cradle Arm 31 Swing axis 40 Contact roller 40a Center of rotation 50 Package storage section 51 Second support surface 60 Stocker 61 1st support surface 62 Rotation axis 70 Bobbin holder 80 Bobbin supply unit Bw bobbin F vertical plane Pw Winding package Y thread t1 top end t2 bottom end x1 center

Claims

1. a cradle capable of rotatably supporting a bobbin holder and movable between a winding start position where a yarn is wound onto a bobbin attached to the bobbin holder to start forming a package and a release position where the package is released from the bobbin holder; a package storage section that stores the package released from the cradle in the release position; a stocker having a first support surface that supports the bobbin from below and that stores the bobbin to be supplied to the cradle; a contact roller that rotates while contacting the outer peripheral surface of the package, the stocker is disposed on one side of a vertical plane passing through an axis of the bobbin holder supported by the cradle in the release position, and the package storage unit is disposed on the other side of the vertical plane; the contact roller is disposed on the one side of the vertical plane and at a position lower than the stocker, In the vertical direction, the first support surface of the stocker is located below an upper end of a virtual maximum circumferential surface of the package supported by the cradle in the release position when the package is wound up to a predetermined maximum winding diameter, A winding device characterized in that, in the vertical direction, the center of rotation of the contact roller is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the release position.

2. The stocker is capable of storing a plurality of the bobbins, 2. The winding device according to claim 1, wherein, in the vertical direction, the upper end of at least one of the bobbins stored in the stocker is located below the upper end of the imaginary maximum circumferential surface of the package supported by the cradle in the release position.

3. the cradle is movable between the winding start position and the release position by swinging about a swing shaft extending in the axial direction of the bobbin holder, the package storage section has a second support surface that supports the package from below after it has been released from the cradle; The winding device according to claim 1, characterized in that, in the vertical direction, the second support surface is located above the swing axis and below the center of the package supported by the cradle in the released position.

4. the cradle is movable between the winding start position and the release position by swinging about a swing shaft extending in the axial direction of the bobbin holder, the package storage section has a second support surface that supports the package from below after it has been released from the cradle; The winding device according to claim 2, characterized in that, in the vertical direction, the second support surface is located above the swing axis and below the center of the package supported by the cradle in the released position.

5. 4. The winding device according to claim 3, wherein, in the vertical direction, the second support surface is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the released position.

6. 5. The winding device according to claim 4, wherein, in the vertical direction, the second support surface is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the released position.

7. the package storage section has a second support surface that supports the package from below after it has been released from the cradle; The winding device described in claim 1, characterized in that, in the vertical direction, the second support surface is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the released position and below the center of the package supported by the cradle in the released position.

8. the package storage section has a second support surface that supports the package from below after it has been released from the cradle; The winding device described in claim 2, characterized in that, in the vertical direction, the second support surface is located above the lower end of the imaginary maximum circumferential surface of the package supported by the cradle in the released position and below the center of the package supported by the cradle in the released position.

9. 9. The winding device according to claim 1, further comprising a bobbin supply unit that supplies the bobbin from the stocker to the cradle.

10. The winding device according to any one of claims 1 to 8, characterized in that the package storage section is capable of storing a plurality of the packages and is inclined downward along a direction from the vertical plane toward the other side.

11. The winding device according to claim 9, wherein the package storage section is capable of storing a plurality of the packages and is inclined downward along a direction from the vertical plane toward the other side.

12. A winding facility comprising a plurality of winding devices according to any one of claims 1 to 8 arranged in a vertical direction.

13. A winding facility, comprising a plurality of winding devices according to claim 9 arranged in a vertical direction.

14. A winding facility, characterized in that a plurality of the winding devices according to claim 10 are arranged in a vertical direction.

15. A winding facility, comprising a plurality of winding devices according to claim 11 arranged in a vertical direction.

Images