Spinning winding device

Abstract

This invention addresses the increase in the amount of yarn wound and changes in the winding position of the yarn relative to the bobbin by ensuring the distance between the yarn-catching guide and the yarn channel when the yarn-catching guide is in the standby position without impairing the yarn-catching function of the yarn-catching device. The yarn-catching device (40) has a yarn-catching guide (50) that catches and releases the yarn (Y) that reciprocates through the traverse device (30), a yarn-pulling posture (PA2) that switches the posture of the yarn-catching guide (50) to a position that moves the caught yarn (Y) toward the yarn fixing part (S) hooked on the bobbin (B), and a guide drive component (60) that is further away from the contact trajectory (32R) than the yarn-pulling posture (PA2) when the yarn (Y) is released. By switching to the standby position (PA4), the wire capture guide (50) leaves the contact track (32R) in the axial direction of the bobbin (B) and leaves the contact track (32R) when viewed from the axial direction of the bobbin (B).

Description

Technical Field

[0001] This invention relates to a spinning take-up apparatus for winding multiple filaments spun from a spinning device onto multiple bobbins to form multiple packages. More specifically, it relates to a spinning take-up apparatus having multiple filament hooking devices for hooking multiple filaments onto filament fixing portions formed on multiple bobbins. Background Technology

[0002] Conventionally, spinning take-up devices have been equipped with multiple filament hooking devices that hook multiple filaments to filament fixing parts formed in multiple bobbins (see, for example, Patent Document 1).

[0003] The wire-holding device uses a wire-catching guide to catch the wire that is reciprocating through a traversing device. The wire caught by the wire-catching guide is guided to the wire-fixing section of a new bobbin. The wire-fixing section is, for example, a slit formed circumferentially near the end of the bobbin. The wire guided to the wire-fixing section is fixed to the bobbin, becoming the starting point for winding.

[0004] The wire-catching guide can move axially along the bobbin using a cylinder. During wire winding, the wire-catching guide is in a standby position along the bobbin's axial direction. When switching to a new bobbin, the wire-catching guide moves to a position where it can catch the wire. If the wire is caught, the wire-catching guide moves to a pulling position, where the wire hooks onto the wire-fixing part of the new bobbin. The pulling position corresponds to the position formed on the wire-fixing part of the bobbin. After hooking the wire onto the wire-fixing part of the new bobbin, the wire-catching guide moves to a wire-disengagement position to release the caught wire. When the caught wire is released, the wire-catching guide moves back to the standby position, ready to switch to the next new bobbin.

[0005] Existing technical documents Patent documents Patent Document 1: Japanese Patent Application Publication No. 2017-154891 Summary of the Invention

[0006] The problem that the invention aims to solve However, for packages formed by a spinning take-up device, improvements are sometimes required, such as increasing the take-up amount and changing the take-up position of the yarn relative to the bobbin. For example, when the take-up amount is increased by increasing the take-up width compared to the past, the take-up position of the yarn relative to the bobbin also needs to be changed simultaneously to ensure stability when the packages are overlapped.

[0007] However, in the aforementioned conventional wire-holding devices, the wire-catching guide in the standby position is close to the wire channel during winding. Therefore, if the wire channel needs to be changed to change the winding position relative to the bobbin or to change the winding width, interference may occur between the wire during winding and the wire-catching guide in the standby position.

[0008] To avoid interference between the winding thread and the standby thread guide, it was considered to position the standby position of the thread guide away from the thread channel along the axial direction of the bobbin. However, in conventional thread-holding devices, the posture of the thread guide in the standby position also serves as the posture of the thread guide in the drawing position. Therefore, in conventional thread guides, if the standby position is changed to be further away from the thread channel along the axial direction of the bobbin, the drawing position is also changed, making it impossible to hook the thread onto the thread fixing part of the new bobbin.

[0009] The present invention was made in view of the above-mentioned problems, and its purpose is to provide a spinning take-up device that does not impair the wire-hanging function of the wire-hanging device. When the wire-catching guide is in standby mode, it can cope with the increase in the take-up amount of the package and the change in the take-up position of the wire relative to the bobbin by ensuring the distance between the guide and the wire channel.

[0010] Methods for solving problems The present invention comprises means for solving the above-mentioned problems as follows.

[0011] That is, the spinning take-up apparatus of the present invention is a spinning take-up apparatus that takes multiple filaments spun from a spinning apparatus onto multiple bobbins, comprising: bobbin supports arranged axially to hold the multiple bobbins; multiple pivot guides that feed the multiple filaments toward the multiple bobbins; multiple traverse devices having multiple traverse guides that guide the multiple filaments fed from the multiple pivot guides to reciprocate about the multiple pivot guides along the axial direction of the multiple bobbins; and multiple thread-hanging devices that hook the multiple filaments to a thread-fixing portion formed in the multiple bobbins; each of the multiple thread-hanging devices comprises: a thread-catching guide that travels closer to the filaments than the traverse guides. The device captures and releases the filament that reciprocates through the traverse device on the upstream side of the direction; and a guide drive component that uses a trajectory defined by the reciprocating movement of the traverse guide with the filament along the axial direction of the bobbin as the contact trajectory, and switches the posture of the filament capturing guide to a pulling posture that moves the captured filament toward the filament fixing part hooked on the bobbin, and a standby posture that is farther away from the contact trajectory than the pulling posture when the filament is released; by switching to the standby posture, the filament capturing guide leaves the contact trajectory in the axial direction of the bobbin, and leaves the contact trajectory when viewed from the axial direction of the bobbin (first structure).

[0012] According to the above structure, the wire guide drive component has a wire pulling posture that switches the posture of the wire capturing guide to a position that moves the captured wire toward the wire fixing part hooked on the bobbin, and a standby posture that is farther away from the contact trajectory than the wire pulling posture when the wire is released. By switching to the standby posture, the wire capturing guide leaves the contact trajectory in the axial direction of the bobbin and leaves the contact trajectory when viewed from the axial direction of the bobbin.

[0013] Therefore, by switching the thread-catching guide to the standby position, the distance between the thread-catching guide and the traveling thread can be increased. This ensures a safe distance from the thread channel.

[0014] In addition, since the wire-pulling posture when hooking the captured wire to the wire fixing part of the bobbin does not need to be changed, the wire-hooking function of the wire-catching guide will not be damaged.

[0015] Therefore, it does not impair the wire-hanging function of the wire-hanging device, and ensures the distance between the wire guide and the wire channel when the wire-catching guide is in standby mode. This allows for improvements in winding processes, such as increased winding volume and changes in the winding position of the wire relative to the bobbin.

[0016] The following structures can be cited as specific examples of the spinning and winding apparatus of the present invention.

[0017] In the first structure described above, the standby posture can also be a posture in which the wire-catching guide moves away from the contact trajectory along the axial direction of the bobbin, and, when viewed from the axial direction of the bobbin, moves upward relative to the contact trajectory compared to the wire-pulling posture (second structure).

[0018] According to the above structure, when the wire-catching guide is switched to the standby position, it moves to the standby position away from the contact trajectory in the axial direction of the bobbin, and when viewed from the axial direction of the bobbin, it becomes a state that has moved upward relative to the contact trajectory compared to the wire-drawing position.

[0019] The wire, reciprocating via the traverse mechanism, moves back and forth around a pivot guide positioned upstream of the wire's direction of travel. As the wire is fed from the pivot guide toward the traverse guide, its inclination angle relative to the bobbin's axis changes. Therefore, the inclination angle of the wire reaches its maximum at both ends of the traverse range, the area where the wire reciprocates via the traverse mechanism.

[0020] That is, upstream of the traverse guide in the direction of the wire's travel, even if the wire-catching guide is in the same axial position on the bobbin when it moves to the standby position, the distance between the wire-catching guide and the traveling wire decreases as the distance between the wire and the contact trajectory in the direction of the wire's travel decreases. In other words, even if the wire-catching guide is in the same axial position on the bobbin, when viewed from the axial direction of the bobbin, it approaches the area where the wire exists as it approaches the contact trajectory.

[0021] Conversely, the distance between the wire-catching guide and the traveling wire increases as the distance between the wire and the contact trajectory increases in the direction of wire travel. In other words, even if the wire-catching guide is in the same axial position on the bobbin, when viewed from the axial direction of the bobbin, it moves further away from the area where the wire exists as it moves away from the contact trajectory.

[0022] Therefore, by moving the wire-catching guide to the standby position and switching it to a standby position that is moved upward relative to the contact trajectory compared to the wire-pulling posture when viewed from the axial direction of the bobbin, the wire-catching guide becomes a state away from the contact trajectory, thereby increasing the distance between it and the traveling wire compared to the wire-pulling posture.

[0023] Therefore, when the thread capture guide is switched to standby mode, the distance to the thread channel can be ensured.

[0024] In addition, the position of the wire-catching guide does not need to be changed when the captured wire is hooked onto the wire fixing part of the bobbin, so the wire-catching guide's wire-hooking function will not be damaged.

[0025] Therefore, it does not impair the wire-hanging function of the wire-hanging device, and ensures the distance between the wire guide and the wire channel when the wire-catching guide is in standby mode. This allows for improvements in winding processes, such as increased winding volume and changes in the winding position of the wire relative to the bobbin.

[0026] In the first or second structure described above, the guide wire drive component may switch the posture of the wire capturing guide to a capturing posture that moves it to a position capable of capturing the wire that reciprocates through the traverse device, switch from the capturing posture to a pulling posture that moves the captured wire to a position hooked on the wire fixing part of the bobbin, switch from the pulling posture to a wire release posture that moves axially on the bobbin between the pulling posture and the capturing posture and releases the wire captured in the capturing posture, and switch from the wire release posture to the standby posture (third structure).

[0027] According to the above structure, the wire guide drive component moves the wire capture guide along the axial direction of the bobbin and moves the wire capture guide in such a way that the distance from the contact trajectory changes when viewed from the axial direction of the bobbin, thereby switching the posture of the wire capture guide to a capture posture, a wire pulling posture, a wire release posture, and a standby posture.

[0028] The wire guide drive unit combines two simple actions: moving the wire capture guide axially toward the bobbin and moving the wire capture guide in a manner that changes the distance from the contact trajectory when viewed from the axial direction of the bobbin. This allows it to switch between various positions of the wire capture guide, including the capture position, the wire pulling position, the wire release position, and the standby position.

[0029] Therefore, the mechanism of the wire guide drive component can be simplified.

[0030] In the third configuration described above, the guide wire driving component may also include: a driving section for driving the wire-catching guide wire along the axial direction of the bobbin; and a guiding section for guiding the wire-catching guide wire along the axial direction of the bobbin; the guiding section includes: a first path section for guiding the wire-catching guide wire to switch from the catching posture to the pulling posture; a second path section for guiding the wire-catching guide wire to switch from the pulling posture to the wire release posture; a third path section for guiding the wire-catching guide wire to switch from the wire release posture to the standby posture; and a fourth path section for guiding the wire-catching guide wire to switch from the standby posture to the catching posture (fourth structure).

[0031] According to the above structure, the wire guide drive component has: a guide portion having a first path portion, a second path portion, a third path portion and a fourth path portion; and a drive portion that drives the wire capture guide along the axial direction of the bobbin.

[0032] Therefore, the structure of the wire guide drive component is not complicated, the wire capture guide can be moved along the axial direction of the bobbin, and the wire capture guide can be moved in a way that changes the distance from the contact trajectory when viewed from the axial direction of the bobbin. The posture of the wire capture guide can be switched to capture posture, wire pulling posture, wire release posture and standby posture.

[0033] In the fourth structure described above, the guide wire drive component may support the wire-catching guide so that it can move axially along the bobbin and support the wire-catching guide so that it can swing about a swing axis extending axially along the bobbin. The guide portion guides the wire-catching guide along the bobbin and causes the wire-catching guide to swing relative to the contact trajectory by changing the distance when viewed from the axial direction of the bobbin. This switches the wire-catching guide to the wire-disengagement posture and the standby posture when viewed from the axial direction of the bobbin, where the distance between the wire-catching guide and the contact trajectory is greater than that distance when the wire-pulling posture is in the wire-disengagement posture (fifth structure).

[0034] According to the above structure, the guide wire drive component guides the wire capture guide along the axial direction of the bobbin, and causes the wire capture guide to oscillate in a manner that changes the distance from the contact trajectory when viewed from the axial direction of the bobbin.

[0035] Therefore, the wire capture guide can be switched to a wire release posture and a standby posture, which increases the distance from the contact trajectory compared to the wire drawing posture when viewed from the axial direction of the bobbin.

[0036] In the fourth or fifth structure described above, the thread-catching guide may be connected to the guided portion guided by the guide portion. The guide portion is connected to the second path portion and the fourth path portion at the first path portion, and to the third path portion and the fourth path portion at the second path portion. The guide portion has a limiting portion that restricts the path for guiding the guided portion, so as to guide the guided portion from the first path portion to the second path portion, from the second path portion to the third path portion, and from the third path portion to the fourth path portion (sixth structure).

[0037] According to the above structure, the wire-catching guide is connected to the guided part guided by the guide part, and the guide part has a limiting part that restricts the path of guiding the guided part.

[0038] Therefore, by guiding the guided part along a prescribed path, the guide unit can switch the posture of the thread capture guide to the capture posture, the thread pulling posture, the thread release posture, and the standby posture.

[0039] In the sixth structure described above, the limiting part may also have: a first limiting part that allows the guided part to enter from the first connection between the first path part and the fourth path part toward the first path part, and prevents the guided part from entering toward the fourth path part; a second limiting part that allows the guided part to enter from the second connection between the first path part and the second path part toward the second path part, and prevents the guided part from entering toward the first path part; and a third limiting part that allows the guided part to enter from the third connection between the second path part and the third path part toward the third path part, and prevents the guided part from entering toward the second path part (seventh structure).

[0040] According to the above structure, the guided portion of the wire-catching guide can be guided toward a predetermined path by the first limiting portion, the second limiting portion and the third limiting portion provided in the guiding portion.

[0041] In the seventh structure described above, the second limiting part may be composed of a step formed between the first path part and the second path part, and the third limiting part may be composed of a step formed between the second path part and the third path part (eighth structure).

[0042] According to the above structure, the second and third restrictive parts are composed of steps.

[0043] Therefore, the guided part of the wire-catching guide can pass through the second and third restrictive parts only in a predetermined direction, and the guided part of the wire-catching guide can be guided toward a predetermined path.

[0044] Invention Effects According to the present invention, the spinning take-up device does not impair the wire-hanging function of the wire-hanging device. While the wire-catching guide is in standby mode, by ensuring the distance from the wire channel, it can cope with improvements in the winding, such as increases in the winding amount of the package and changes in the winding position of the wire relative to the bobbin. Attached Figure Description

[0045] Figure 1 This is a schematic structural diagram of the spinning traction device of the spinning take-up apparatus that applies the embodiments of the present invention.

[0046] Figure 2 This is a schematic diagram of the transverse movement device and the wire hanging device.

[0047] Figure 3 From Figure 2A schematic structural diagram of the lateral movement device and the wire hanging device as viewed from the D1 direction.

[0048] Figure 4 This is a diagram showing the bobbin and the wire fixing part formed on the bobbin.

[0049] Figure 5 (a) is a perspective view showing the state after the guide body and the insertion part constituting the guide wire drive component are assembled. Figure 5 (b) is a 3D diagram representing the state after decomposition.

[0050] Figure 6 This is a diagram showing the path of the cam component guiding the guided part.

[0051] Figure 7 (a) to (e) are diagrams showing the state of the cam component guiding the guided part.

[0052] Figure 8 (a) is a diagram illustrating the structure of the cam component. Figure 8 (b) is from Figure 8 The magnified 3D view of the region from line A1-A1 to line A2-A2 in (a).

[0053] Figure 9 (a) to (c) are diagrams showing the state in which the wire-catching guide of the wire-catching device is set to the catching posture.

[0054] Figure 10 (a) to (c) are diagrams showing the state in which the wire-catching guide of the wire-hanging device is set to the wire-pulling posture.

[0055] Figure 11 (a) to (c) are diagrams showing the state in which the wire-catching guide of the wire-hanging device is set to the wire-disengaging state.

[0056] Figure 12 (a) to (c) are diagrams showing the state in which the wire-catching guide of the wire-hanging device is set to the standby position.

[0057] Figure 13 Figures (a) to (b) illustrate the distance between the standby position of the wire capture guide and the wire channel. Detailed Implementation

[0058] Implementation Method 1 Hereinafter, the spinning take-up apparatus 100 according to Embodiment 1 of the present invention will be described in detail with reference to the accompanying drawings. The same or equivalent parts in the drawings will be labeled with the same reference numerals, and their descriptions will not be repeated. Furthermore, to facilitate understanding, the structure is shown in a simplified or schematic manner in the following drawings, or some constituent parts are omitted. Additionally, the dimensional ratios between the constituent parts shown in the figures do not necessarily represent actual dimensional ratios.

[0059] In the following figures, for ease of explanation, arrow U indicates the top of the spinning take-up device 100 and the spinning traction device 200, and arrow D indicates the bottom. Arrow F indicates the front of the spinning take-up device 100, and arrow B indicates the rear. Arrow R indicates the right side of the spinning take-up device 100, and arrow L indicates the left side. Furthermore, the front-back direction of the spinning take-up device 100 is aligned with the axial direction of the bobbin B mounted on the spinning take-up device 100. Therefore, in the following description, the front-back direction is sometimes referred to as the axial direction of the bobbin B.

[0060] (Spinning traction device) Figure 1 This is a schematic structural diagram of the spinning traction device 200 that utilizes the spinning take-up device 100 according to an embodiment of the present invention. Figure 1 As shown, the spinning traction device 200 is a device that separately draws multiple filaments Y spun from the spinning device 2. The spinning traction device 200 includes a stretching section 3, traction rollers 4 and 5, an interlacing device 6, and a spinning take-up device 100. The operation of the spinning traction device 200 is controlled by a control device 8.

[0061] The spinning device 2 is positioned above the spinning traction device 200. In the spinning device 2, polymer supplied from the polymer supply device (not shown) is extruded downwards from the spinning spinneret, and multiple filaments Y are spun out in a left-right arrangement.

[0062] Multiple filaments Y spun from the spinning device 2 travel in a left-right direction along the filament channel of the stretching section 3, the traction roller 4, the weaving device 6, and the traction roller 5. Furthermore, based on the distribution of the multiple filaments Y from the traction roller 5 in the front-back direction, they are respectively wound into multiple bobbins B in the spinning take-up device 100.

[0063] The stretching section 3 is located below the spinning device 2. The stretching section 3 has a heat preservation box 10 and multiple heating rollers (not shown) housed within the heat preservation box 10. The stretching section 3 heats and stretches the multiple filaments Y spun from the spinning device 2 using the multiple heating rollers. Furthermore, a cutter 11 is located upstream of the stretching section 3; this cutter 11 cuts the multiple filaments Y to stop winding in case of filament breakage or other issues.

[0064] Multiple filaments Y, stretched by the stretching section 3, are conveyed to the spinning take-up device 100 by traction rollers 4 and 5. An interlacing device 6 is arranged between the traction rollers 4 and 5. The interlacing device 6 causes the multiple filaments constituting a single filament Y to intertwine, thus giving it a bundled nature. For example, the interlacing device 6 can be a structure in which the filaments are interlaced by an airflow ejected from an air nozzle.

[0065] (Spinning and winding device) The spinning take-up device 100 is a device that takes multiple filaments Y spun from the spinning device 2 onto multiple bobbins B. The spinning take-up device 100 is located below the traction roller 5. The spinning take-up device 100 simultaneously takes multiple filaments Y fed from the traction roller 5 onto multiple bobbins B to form multiple packages P. The spinning take-up device 100 includes a machine body 20, a turntable 21, a bobbin support 22, a support frame 23, a contact roller 26, a traverse device 30, etc.

[0066] The turntable 21 is a circular plate-shaped component rotatably mounted on the machine body 20. The turntable 21 is driven to rotate by a turntable motor (not shown) about a axis 21a parallel to the front-rear direction. Two elongated cylindrical tube supports 22 are cantilevered and supported on the turntable 21 in a front-rear direction. The two tube supports 22 are installed in two mutually symmetrical positions relative to the rotation center of the turntable 21. Each tube support 22 is driven to rotate by a tube support motor (not shown) about an axis 22a parallel to the front-rear direction. The two tube supports 22 can switch between an upper winding position and a lower retracting position by rotating the turntable 21.

[0067] Multiple bobbins B (eight in this embodiment) are axially arranged on each bobbin support 22. The bobbin support 22 located at the upper winding position is driven to rotate by a bobbin support motor, thereby winding the yarn Y onto the multiple bobbins B held on the bobbin support 22 to form a roll P. When the roll P is completed, the bobbin support 22 located at the upper winding position is swapped with the bobbin support 22 located at the lower retraction position by rotating the turntable 21, and the bobbin support 22 forming the roll P is switched.

[0068] The support frame 23 is a long, frame-like component extending in the front-to-back direction. The rear end of the support frame 23 is cantilevered by the machine body 20. The roller support component 25 is mounted on the lower part of the support frame 23 in a manner that allows it to move up and down relative to the support frame 23.

[0069] The roller support member 25 is provided with a contact roller 26, multiple fulcrum guides 27, and multiple traverse devices 30. The contact roller 26 extends axially along the bobbin support 22 and is supported by the roller support member 25 to be rotatable. The contact roller 26 contacts the surfaces of multiple packages P formed on the bobbin support 22 at the take-up position, rotates at a surface speed approximately the same as the surface speed of the packages P, feeds the yarn Y toward the packages P, applies a predetermined contact pressure to the packages P, and adjusts the shape of the packages P.

[0070] Multiple pivot wire guides 27 and multiple traverse devices 30 are configured to correspond to the positions of multiple bobbins B mounted on the bobbin support 22, respectively. The pivot wire guides 27 serve as the center for the reciprocating movement of the wire Y based on the traverse devices 30.

[0071] (Transverse movement device) Figure 2 This is a schematic structural diagram of the traversing device 30 and the wire-hanging device 40. The following will describe... Figure 2 The view from which the lateral movement device 30 and the wire-hanging device 40 are observed will be described as the front view. Figure 2 In the image, the traversing device 30 and the wire hanging device 40 are viewed from a direction perpendicular to the surface of the traversing guide 31 disposed on the traversing device 30. Additionally, Figure 2 The direction D1 in the figure represents the direction of the wire hanging device 40 as viewed from the end of the traverse wire guide 31, i.e., the wire guide end 32 side. Figure 3 From Figure 2 A schematic structural diagram of the lateral movement device 30 and the wire hanging device 40 as viewed from the D1 direction.

[0072] like Figure 2 as well as Figure 3 As shown, multiple traverse devices 30 are respectively arranged below the corresponding fulcrum guides 27. The traverse device 30 causes the yarn Y wound on the corresponding bobbin B to reciprocate in the front-back direction (axial direction of bobbin B).

[0073] The traverse device 30 includes a traverse wire guide 31 and two blade wire guides 35 and 36. The traverse wire guide 31 is a plate-shaped component arranged such that the wire guide end 32 extends in the front-back direction (axial direction of the bobbin B). The reciprocating wire Y contacts the wire guide end 32, guiding the wire Y in the front-back direction (axial direction of the bobbin B).

[0074] Two bladed wire guides 35 and 36, centered on the pivot wire guide 27 positioned above the traverse device 30, cause the wire Y to reciprocate along the front-to-back direction within the traverse range R. If the surface 31A of the traverse wire guide 31 is defined as the upstream side surface in the direction of travel DT of the wire Y (…), Figure 2 The front side of the paper, for reference. Figure 3The opposite side is set as the back surface 31B of the transverse guide wire 31. Figure 2 The inside side of the paper, refer to Figure 3 Then, the two blade guides 35 and 36 are positioned on the back side 31B of the transverse guide 31, configured to rotate in opposite directions. Figure 2 The image shows the state in which the ends 351 and 361 of the two blade wire guides 35 and 36 are visible from below the wire guide end 32 of the traversing wire guide 31.

[0075] The wire Y, which is in contact with the traverse guide 31, moves forward through the blade guide 35 that rotates from rear to front. Upon reaching the front end of the traverse range R, it is handed over to the blade guide 36 that rotates from front to rear. The handed-over wire Y then moves rearward through the other blade guide 36, and upon reaching the rear end of the traverse range R, it is again handed over to the blade guide 35. By repeatedly performing this same action, the wire Y moves back and forth within the traverse range R around the pivot guide 27.

[0076] In this embodiment, the guide end 32 of the traverse guide 31 corresponds to the position where the traverse guide 31 contacts the yarn Y. Furthermore, the traverse device 30 causes the yarn Y to reciprocate within the traverse range R, thereby causing the contact position to reciprocate axially along the bobbin B. Therefore, the portion of the guide end 32 included within the traverse range R (contact trajectory 32R) corresponds to the "trajectory (contact trajectory) defined by the reciprocating movement of the contact position between the traverse guide and the yarn along the axial direction of the bobbin" in this invention.

[0077] Furthermore, in this embodiment, the traverse device 30 is configured to have a traverse guide 31 and two blade guides 35 and 36, but other traverse devices with different structures can also be used. For example, the traverse guide can be configured as a component that engages with the yarn Y, and the yarn Y can be moved back and forth in the front-back direction by reciprocating the traverse guide. In this case, a guide portion, for example, generally U-shaped, is provided at the front end of the traverse guide to engage with the yarn Y in a manner that clamps the yarn Y. The traverse guide can also be moved back and forth in the front-back direction by, for example, being driven by the rotation of a traverse cam.

[0078] (Wire hanging device) The wire-hanging device 40 is a device that hooks and fixes multiple wires Y to the wire-fixing portion S formed in multiple bobbins B as the starting point for winding. The wire-hanging device 40 is provided in a manner corresponding to each traverse device 30. For example, when switching from multiple bobbins B for winding multiple wires Y to new multiple bobbins B, the wire-hanging device 40 hooks and fixes the multiple wires Y to the wire-fixing portion S formed in the new multiple bobbins B as the starting point for winding.

[0079] Figure 4 This is a diagram showing the bobbin B and the wire fixing part S formed on the bobbin B. (See diagram below.) Figure 4 As shown, in this embodiment, the wire fixing portion S of the bobbin B is a slit formed circumferentially near one end of the bobbin B. In this embodiment, multiple bobbins B are mounted on the bobbin support 22 such that the wire fixing portion S is located on the front end side of the bobbin support 22. The wire Y is fixed by being bitten into the wire fixing portion S (slit) by the wire hanging device 40, thereby allowing the wire to be hung onto a new bobbin B.

[0080] like Figure 2 as well as Figure 3 As shown, the wire-hanging device 40 has a wire-catching guide 50 and a guide drive component 60.

[0081] The thread-catching guide 50 is a component that catches and releases the thread Y, which reciprocates through the traverse device 30, on the upstream side of the guide end 32 of the traverse guide 31 in the direction of travel DT of the thread Y. In this embodiment, the thread-catching guide 50 is disposed on the surface 31A side of the traverse guide 31, and on the side opposite to the two blade guides 35 and 36. The thread-catching guide 50 has a catching part 51 and a thread-introducing guide 54.

[0082] The wire-catching guide 50 is driven by the guide drive component 60, thereby enabling it to move axially along the traverse guide 31 in the bobbin B (see reference). Figures 9 to 12 Furthermore, the wire-catching guide 50 is driven by the wire guide drive component 60, thereby enabling the distance between the wire and the contact trajectory 32R in the Y-direction of travel (see reference). Figures 9 to 13 In other words, the wire-catching guide 50 is driven by the guide drive component 60, thereby allowing the distance to the contact trajectory 32R to change when viewed from the axial direction of the bobbin B.

[0083] In this embodiment, by moving the wire-catching guide 50 along the axial direction of the bobbin B and changing the distance between the wire-catching guide 50 and the contact trajectory 32R in the wire Y travel direction DT, it is possible to switch between a posture in which the wire-catching guide 50 approaches the traversing guide 31 and a posture in which it separates from the traversing guide 31. In other words, it is possible to move the wire-catching guide 50 along the axial direction of the bobbin B and to switch the wire-catching guide 50 between a posture approaching the contact trajectory 32R and a posture moving away from the bobbin B when viewed from the axial direction of the bobbin B. Thus, it is possible to switch the posture of the wire-catching guide 50 to a catching posture PA1 (see reference). Figure 9 ), Thread-pulling posture PA2 (refer to) Figure 10 ), thread release posture PA3 (refer to) Figure 11 ) and standby posture PA4 (refer to Figure 12 In this embodiment, viewed from the axial direction of the bobbin B, the distance from the traverse guide 31 to the wire-catching guide 50 can be varied by moving the wire-catching guide 50 up and down relative to the contact trajectory 32R.

[0084] The capturing section 51 captures the thread Y that reciprocates through the traverse device 30 and releases the captured thread Y. The capturing section 51 is formed by a slit through which the thread Y can be inserted. An opening section 52 is formed at the end of the capturing section 51. The opening section 52 is formed at the end of the capturing section 51 near the side of the guide wire drive member 60 and opens toward the center side of the traverse range R. The thread Y can enter and exit the slit of the capturing section 51 through the opening section 52. The thread Y is captured by the thread capturing guide 50 by entering the capturing section 51 through the opening section 52 and is released from the thread capturing guide 50 by exiting the capturing section 51 through the opening section 52.

[0085] The thread guide 54 guides the thread Y towards the opening 52 of the capturing part 51, where the capturing part 51 captures the thread Y. The thread guide 54 is formed at the end of the lateral movement range R of the thread capturing guide 50 in the front-rear direction. The thread guide 54 is configured to abut against the thread Y, which reciprocates through the lateral movement device 30, when the thread capturing guide 50 is moved axially along the bobbin B and located inside the lateral movement range R.

[0086] The thread guide 54 is inclined relative to the guide end 32 of the traverse guide 31 to guide the abutting thread Y to the opening portion 52. With the thread capturing guide 50 positioned inside the traverse range R and the thread Y reciprocating via the traverse device 30 abutting against the thread guide 54, the thread Y moves towards the front end of the traverse range R. Therefore, a force is applied to the thread Y towards the front end of the traverse range R. Under the action of this force, the thread Y is guided along the inclination of the thread guide 54 to the opening portion 52 of the capturing portion 51, and enters the capturing portion 51 from the opening portion 52 to be captured.

[0087] The guide wire drive unit 60 moves the wire-catching guide 50 along the traverse guide 31 in the axial direction of the bobbin B. Additionally, the guide wire drive unit 60 changes the distance between the wire-catching guide 50 and the contact trajectory 32R in the wire's Y-direction of travel DT. In other words, the guide wire drive unit 60 moves the wire-catching guide 50 along the traverse guide 31 and switches the wire-catching guide 50 between a position close to the traverse guide 31 and a position separated from the traverse guide 31 (see reference). Figures 9 to 12 The wire guide drive unit 60 has a drive section 61 and a guide section 70.

[0088] The drive unit 61 drives the wire-catching guide 50 axially along the bobbin B. In this embodiment, a cylinder is used as the drive unit 61. The rod 62 of the drive unit 61 is connected to the guide 70 (insertion part 73) via a clamp 63 (see reference). Figure 5 The driving force in the forward and backward direction of the drive unit 61 is transmitted to the wire-catching guide 50 via the guide unit 70 (insertion part 73). In addition, the drive unit 61 can be a drive source other than a cylinder.

[0089] The guide section 70 guides the wire along the transverse guide 31 in the axial direction of the bobbin B to capture the wire guide 50, and changes the distance between the wire Y and the contact trajectory 32R in the direction of travel DT. The guide section 70 has a guide section body 71, an insertion section 73, and a cam component 80.

[0090] The guide body 71 is disposed near the front end of the traverse wire guide 31. The insertion part 73 is held inside the guide body 71 in a manner that allows it to move in the front-back direction. In addition, the insertion part 73 is held so that it can swing about an axis 73a relative to the guide body 71.

[0091] The insertion part 73 is a generally cylindrical component. A wire-catching guide 50 is connected to the insertion part 73 via a connecting part 74. An opening 78 is formed in the guide body 71 for the connecting part 74 to pass through. Furthermore, a connecting end 75 is provided at the rear end of the insertion part 73. A drive part 61 is connected to the connecting end 75 via a clamp 63. The insertion part 73 is oscillating relative to the clamp 63 about an axis 73a.

[0092] The cam component 80 is a component that guides the insertion part 73 in the front-to-back direction and causes the insertion part 73 to oscillate around the axis 73a. By guiding the insertion part 73, which is driven by the drive unit 61 in the front-to-back direction, the cam component 80 causes the posture of the insertion part 73 to change in the front-to-back direction and around the axis 73a. As a result, the distance between the wire-catching guide 50 connected to the insertion part 73 and the contact trajectory 32R in the wire Y travel direction DT changes, switching between a posture close to the traverse guide 31 and a posture separated from the traverse guide 31.

[0093] The cam component 80 is housed in a cam housing portion 81 provided in the guide body 71. A force-applying member 82 is disposed in the cam housing portion 81 to apply force to the cam component 80 toward the insertion portion 73. For example, a leaf spring can be used as the force-applying member 82. The cam component 80 housed in the cam housing portion 81 and the force-applying member 82 are positioned by a mounting member 83 mounted on the outside of the guide body 71.

[0094] A guide portion 76 is provided on the side of the insertion portion 73 (see reference). Figure 5The guided portion 76 protrudes radially toward the insertion portion 73 and abuts against the cam member 80. By guiding the guided portion 76 through the cam member 80, the posture of the insertion portion 73 can be varied in the front-back direction and around the axis 73a.

[0095] Because the cam component 80 is forced towards the insertion portion 73 by the force-applying component 82, even if the posture of the insertion portion 73 changes, or the contact position between the guided portion 76 and the cam component 80 changes, the cam component 80 and the guided portion 76 maintain a predetermined contact pressure. Furthermore, the mounting component 83 is detachable, allowing for maintenance such as removing the mounting component 83 to replace the cam component 80 and the force-applying component 82.

[0096] Figure 5 (a) is a perspective view showing the state in which the guide body 71 and the insertion part 73 constituting the guide drive component 60 are assembled. Figure 5 (b) is a 3D diagram representing the state of decomposition. For example... Figure 5 As shown, the insertion part 73 is a generally cylindrical component. A wire-catching guide 50 is connected to the insertion part 73 via a connecting part 74. A guided part 76 is provided on the side of the insertion part 73. The guided part 76 protrudes toward a side opposite to the direction in which the wire-catching guide 50 extends. A guided groove 761 extending in the front-rear direction is formed at the front end of the guided part 76.

[0097] The insertion part 73 is assembled to the guide body 71 in a manner that allows insertion from the front to the rear. An opening 78 is formed in the guide body 71 for the connecting part 74 to pass through. Inside the guide body 71, the cam member 80 and the force-applying member 82 are positioned by the mounting member 83 (see reference). Figure 2 ).

[0098] With the guide body 71 and the insertion part 73 combined, the guided part 76 of the insertion part 73 is guided by contacting the cam member 80 inside the guide body 71. The guided part 76 is guided by the cam member 80, and the posture of the insertion part 73 is changed along the front-back direction and around the axis 73a, such as... Figure 5 As indicated by arrow DR in (a), the posture of the wire-catching guide 50 connected to the insertion part 73 is switched between a posture approaching the traverse guide 31 and a posture separated from the traverse guide 31. Thus, the posture of the wire-catching guide 50 can be switched to the catching posture PA1 (see reference). Figure 9 ), Thread-pulling posture PA2 (refer to) Figure 10 ), thread release posture PA3 (refer to) Figure 11 ) and standby posture PA4 (refer to Figure 12 ).

[0099] (Cam component) Figure 6 This is a diagram showing the path portion of the cam component 80 that guides the guided portion 76. Figure 7 This diagram shows the state of the cam component 80 guiding the guided part 76. Figure 8 (a) is a diagram illustrating the structure of the cam component 80. Figure 8 (b) is from Figure 8 The magnified 3D view of the region from line A1-A1 to line A2-A2 in (a).

[0100] If used Figures 2 to 5 As explained, the guide portion 76 of the insertion portion 73 is guided by the cam member 80, thereby switching the posture of the wire capture guide 50 to capture posture PA1, wire pulling posture PA2, wire disengagement posture PA3, and standby posture PA4.

[0101] like Figure 6 As shown, a path section is provided in the cam component 80, which guides the guided portion 76 to a predetermined path, thereby switching the posture of the wire-catching guide 50. The cam component 80 has a first path section 91, a second path section 92, a third path section 93, and a fourth path section 94. By guiding the guided portion 76 through these path sections, the posture of the wire-catching guide 50 is switched as follows.

[0102] The first path section 91 guides the guided section 76 to switch the wire capture guide 50 from the capture posture PA1 to the wire drawing posture PA2.

[0103] The second path section 92 guides the guided section 76 so that the thread capture guide 50 switches from the thread pulling posture PA2 to the thread release posture PA3.

[0104] The third path section 93 guides the guided section 76 so that the thread capture guide 50 switches from the thread detachment posture PA3 to the standby posture PA4.

[0105] The fourth path section 94 guides the guided section 76 to switch the wire capture guide 50 from the standby position PA4 to the capture position PA1.

[0106] Each path section is connected by a connecting section, so that the guided section 76 is sequentially guided to the first path section 91, the second path section 92, the third path section 93, and the fourth path section 94. Specifically, as follows.

[0107] The first path section 91 and the fourth path section 94 are connected at the first connecting section 101.

[0108] The first path section 91 and the second path section 92 are connected at the second connecting section 102.

[0109] The second path section 92 and the third path section 93 are connected at the third connecting section 103.

[0110] The third path section 93 and the fourth path section 94 are connected at the fourth connecting section 104.

[0111] In addition, such as Figure 7 As shown, the starting point (end point) of each path section corresponds to the following posture of the wire-catching guide 50.

[0112] like Figure 7 As shown in (a), when the guided part 76 is located at the first connecting part 101 (first cam position), which is the starting point of the first path part 91 (the ending point of the fourth path part 94), the wire-catching guide 50 is in the catching posture PA1 (see reference). Figure 9 ).

[0113] like Figure 7 As shown in (b), when the guided part 76 is located in the state of the second connecting part 102, which is the starting point of the second path part 92 (the ending point of the first path part 91) (second cam position), the wire-catching guide 50 is in the wire-pulling posture PA2 (see reference). Figure 10 ).

[0114] like Figure 7 As shown in (c), when the guided part 76 is located in the state of the third connecting part 103 (third cam position), which is the starting point of the third path part 93 (the ending point of the second path part 92), the wire capture guide 50 is in the wire disengagement posture PA3 (see reference). Figure 11 ).

[0115] like Figure 7 As shown in (d), when the guided part 76 is located in the state of the fourth connecting part 104 (the fourth cam position), which is the starting point of the fourth path part 94 (the ending point of the third path part 93), the wire-catching guide 50 is in standby position PA4 (see reference). Figure 12 ).

[0116] like Figure 7 As shown in (e), when the guided part 76 is located at the first connecting part 101, which is the end point of the fourth path part 94 (the starting point of the first path part 91) (first cam position), the wire-catching guide 50 is in the catching posture PA1 (see reference). Figure 9 ).

[0117] Here, the first connecting part 101 (first cam position) ( Figure 7 (a) and the second connecting part 102 (second cam position) Figure 7(b) is arranged along the front-to-back direction. Therefore, when the guided part 76 is guided from the first connecting part 101 (first cam position) to the second connecting part 102 (second cam position) via the first path part 91, the posture of the insertion part 73 only changes in the front-to-back direction. As a result, the wire-catching guide 50 switches from the catching posture PA1 to the wire-pulling posture PA2 while maintaining proximity to the traverse guide 31 (see reference). Figure 9 , Figure 10 ).

[0118] Second connecting part 102 (second cam position) Figure 7 (b) and the third connecting part 103 (third cam position) Figure 7 (c) The position of the insertion part 73 changes not only in the front-to-back direction but also in the direction intersecting the front-to-back direction. Therefore, when the guided part 76 is guided from the second connecting part 102 (second cam position) to the third connecting part 103 (third cam position) via the second path part 92, the posture of the insertion part 73 changes not only in the front-to-back direction but also around the axis 73a. As a result, the wire-catching guide 50 changes from a state close to the traverse guide 31 to a state of gradual separation while switching to the wire-disengaging posture PA3 (see reference). Figure 10 , Figure 11 ).

[0119] At the third connecting part 103 (third cam position) Figure 7 (c) and the fourth connecting part 104 (fourth cam position) Figure 7 The position of the insertion part 73 changes not only in the front-to-back direction but also in the direction intersecting the front-to-back direction. Therefore, when the guided part 76 is guided from the third connecting part 103 (third cam position) to the fourth connecting part 104 (fourth cam position) via the third path part 93, the change in the posture of the insertion part 73 around the axis 73a further increases. Consequently, the wire-catching guide 50 further separates from the traverse guide 31 while switching to the standby position PA4. In the standby position PA4, the wire-catching guide 50 is in a state where it is significantly separated from the traverse guide 31 compared to the wire-pulling position PA2 (see reference). Figure 11 , Figure 12 ).

[0120] At the fourth connecting part 104 (fourth cam position) Figure 7 (d) and the first connecting part 101 (first cam position) Figure 7 (e) not only differs in position in the front-back direction, but also changes in position in the direction intersecting with the front-back direction, becoming the same as Figure 7(a) is the same state. Therefore, when the guided part 76 is guided from the fourth connecting part 104 (fourth cam position) to the first connecting part 101 (first cam position) via the fourth path part 94, the posture of the insertion part 73 changes not only in the front-back direction, but also around the axis 73a. As a result, the wire capturing guide 50 changes from the standby posture PA4, which is separated from the traverse guide 31, to a state that gradually approaches the traverse guide 31, while switching to the capturing posture PA1 (see reference). Figure 12 , Figure 9 ).

[0121] Here, as Figure 6 As shown, in the first path section 91 of the cam component 80, a fourth path section 94 and a second path section 92 are connected at the starting point (first connecting section 101) and the ending point (second connecting section 102). In the second path section 92, a third path section 93 is connected at the ending point (third connecting section 103). A limiting section 120 is provided in the cam component 80 (see reference). Figure 8 This ensures that, when the guided part 76 is guided, the connecting part of the path is reliably guided to the prescribed path. The limiting part 120 restricts the guided part 76 from entering a different path. Figure 8 The detailed structure of the path of the cam component 80 is explained.

[0122] like Figure 8 As shown, the cam component 80 has a first cam surface 111, a second cam surface 112, a third cam surface 113, a fourth cam surface 114, a fifth cam surface 115, a sixth cam surface 116, a seventh cam surface 117, an eighth cam surface 118, and a ninth cam surface 119.

[0123] The relative protrusion of the first cam surface 111 to the ninth cam surface 119, or in other words, the protrusion relative to the guided part 76, are different, but they are all cam surfaces that guide the guided part 76.

[0124] The cam surface with a relatively small protrusion relative to the guided part 76 is set as a low-height cam surface, and the cam surface with a relatively large protrusion relative to the guided part 76 is set as a high-height cam surface.

[0125] A cam surface that is tilted in a way that connects cam surfaces of different heights is called an inclined cam surface.

[0126] The portion of the surface formed when cam surfaces of different heights are adjacent and which cannot be crossed when it is abutted by the guide part 76 is designated as a step.

[0127] Regarding the steps, the guided part 76 can cross (pass through) from the relatively high cam surface to the low cam surface, but the guided part 76 cannot cross (pass through) from the relatively low cam surface to the high cam surface.

[0128] The first path portion 91, the second path portion 92, the third path portion 93, and the fourth path portion 94 of the cam component 80 are configured via the first cam surface 111 to the ninth cam surface 119 as follows (see reference). Figure 6 ).

[0129] The first path section 91 is composed of a first cam surface 111, a second cam surface 112, a third cam surface 113, a fourth cam surface 114, a fifth cam surface 115, and a sixth cam surface 116.

[0130] The second path section 92 is composed of a sixth cam surface 116, a fifth cam surface 115, a fourth cam surface 114, and a seventh cam surface 117.

[0131] The third path section 93 is composed of the seventh cam surface 117 and the eighth cam surface 118.

[0132] The fourth path section 94 is composed of the eighth cam surface 118, the seventh cam surface 117 and the ninth cam surface 119.

[0133] The first cam surface 111, the sixth cam surface 116, the seventh cam surface 117, the eighth cam surface 118, and the ninth cam surface 119 among the first cam surface 111 to the ninth cam surface 119 are cam surfaces with the same relative protrusion and the smallest relative protrusion among the cam surfaces constituting the cam component 80.

[0134] Among the first cam surface 111 to the ninth cam surface 119, the third cam surface 113 has the largest relative protrusion, and the fourth cam surface 114 has the second largest relative protrusion after the third cam surface 113.

[0135] The second cam surface 112 is an inclined cam surface that connects the first cam surface 111 and the third cam surface 113.

[0136] The fifth cam surface 115 is an inclined cam surface that connects the sixth cam surface 116 and the fourth cam surface 114.

[0137] A first step 121 is formed between the third cam surface 113 and the fourth cam surface 114, which are at different heights.

[0138] A second step 122 is formed between the fourth cam surface 114 and the seventh cam surface 117 and the eighth cam surface 118, which are at different heights.

[0139] A third step 123 is formed between the third cam surface 113 and the seventh cam surface 117 and the ninth cam surface 119, which are at different heights.

[0140] A protrusion 141 extending in the front-rear direction is formed on the second cam surface 112 and the third cam surface 113. The protrusion 141 guides the guided portion 76 in the front-rear direction by engaging with the guided groove 761 formed at the front end of the guided portion 76.

[0141] Here, as Figure 7 As shown in (a), when the guided portion 76 is in the state of the first connecting portion 101 (first cam position), which is the starting point of the first path portion 91 (the ending point of the fourth path portion 94), the guided portion 76 may be guided by either the first path portion 91 or the fourth path portion 94. This is because the first connecting portion 101 (first cam position) is the connecting portion between the first path portion 91 and the fourth path portion 94.

[0142] like Figure 8 As shown, the protrusion 141 formed on the first cam surface 111 and the second cam surface 112 engages with the guided groove 761 of the guided portion 76, thereby allowing the guided portion 76 to enter from the first connecting portion 101 toward the first path portion 91. Additionally, the protrusion 141 prevents the guided portion 76 from entering from the first connecting portion 101 toward the fourth path portion 94. The protrusion 141 corresponds to the first limiting portion (limiting portion 120) of the present invention.

[0143] The guided part 76 is located at the second connecting part 102 (second cam position), which is the starting point of the second path part 92 (the ending point of the first path part 91). Figure 7 In state (b), the guided portion 76 may be guided by either the first path portion 91 or the second path portion 92. This is because the second connecting portion 102 is the connecting portion between the first path portion 91 and the second path portion 92.

[0144] like Figure 8 As shown, a first step 121 is formed between the third cam surface 113 and the sixth cam surface 116, fifth cam surface 115, and fourth cam surface 114, which are at different heights. The first step 121 allows the guided portion 76 to enter from the second connecting portion 102 toward the second path portion 92. Additionally, the first step 121 prevents the guided portion 76 from entering toward the first path portion 91. The first step 121 corresponds to the second limiting portion (limiting portion 120) of the present invention.

[0145] The guided part 76 is located at the third connecting part 103 (third cam position), which is the starting point of the third path part 93 (the ending point of the second path part 92). Figure 7 In state (c), the guided part 76 may be guided by the second path part 92 or the third path part 93. This is because the third connecting part 103 is the connecting part between the second path part 92 and the third path part 93.

[0146] A second step 122 is formed between the fourth cam surface 114 and the seventh cam surface 117 and the eighth cam surface 118, which are at different heights. The second step 122 allows the guided part 76 to enter from the third connecting part 103 toward the third path part 93. In addition, the second step 122 prevents the guided part 76 from entering toward the second path part 92. The second step 122 corresponds to the third limiting part (limiting part 120) of the present invention.

[0147] The guide section 76 is guided from the fourth connecting section 104 (fourth cam position) Figure 7 (d) To the first connecting part 101 (first cam position) Figure 7 In the case of (e) guidance, the guided part 76 is guided by the fourth path part 94. In this case, the guided part 76 is guided by the second step 122 formed between the fourth cam surface 114 and the seventh cam surface 117 and the eighth cam surface 118 at different heights, and the third step 123 formed between the third cam surface 113 and the seventh cam surface 117 and the ninth cam surface 119 at different heights.

[0148] Thus, limiting parts 120 (protrusions 141, first steps 121, and second steps 122) are provided in the first path section 91, second path section 92, third path section 93, and fourth path section 94 used to guide the guided part 76. Therefore, the guided part 76 can be guided toward a predetermined path.

[0149] (Actions during tube replacement) Next, the actions of completing the winding of the yarn Y into the bobbin B and replacing the bobbin B used for winding the yarn Y will be explained.

[0150] Figure 9 This diagram shows the state in which the wire-catching guide 50 of the wire-hanging device 40 is set to the catching posture PA1. Figure 10 This diagram shows the state in which the wire-catching guide 50 of the wire-hanging device 40 is set to the wire-pulling posture PA2. Figure 11 This diagram shows the state where the wire-catching guide 50 of the wire-hanging device 40 is set to the wire-disengagement state PA3. Figure 12 This diagram shows the state where the wire-catching guide 50 of the wire-hanging device 40 is set to the standby position PA4. Figures 9 to 12 In the text, each of the (a) is related to... Figure 2 Similarly, the diagrams of the traverse device 30 and the wire hanging device 40 are viewed from the front, (b) is a view viewed from the D1 direction of (a), and (c) is a partial sectional view of the traverse device 30 and the wire hanging device 40 viewed from the front (axial direction of the bobbin B).

[0151] like Figure 12As shown, during the winding of the yarn Y into the bobbin B, the yarn-catching guide 50 is switched to a standby position PA4. In the standby position PA4, the yarn-catching guide 50 is located axially away from the contact trajectory 32R on the bobbin B, i.e., the standby position. In this embodiment, the standby position and the yarn-pulling position refer to the axial positions of the bobbin. In this embodiment, the position where the captured yarn Y is hooked onto the yarn fixing part S of the bobbin B (the yarn-pulling position) and the standby position are the same axial position of the bobbin. However, the positional relationship between the standby position and the yarn-pulling position is not limited to this; the standby position and the yarn-pulling position can also be different axial positions of the bobbin.

[0152] When the winding of the yarn Y towards the bobbin B is complete, rotate the turntable 21 to change the positions of the two bobbin supports 22. Then, as... Figure 9 As shown, the drive unit 61 is driven to move the thread-catching guide 50 into the traverse range R, thereby switching the thread-catching guide 50 to the catching posture PA1. The catching posture PA1 is the posture in which the thread-catching guide 50 is moved to a position that can catch the thread Y that is reciprocating through the traverse device 30.

[0153] At this time, as Figure 7 of (a) Figure 7 As shown in (e), when the guided part 76 is guided from the fourth connecting part 104 (fourth cam position) to the first connecting part 101 (first cam position) via the fourth path part 94, the posture of the insertion part 73 changes not only in the front-back direction but also around the axis 73a. As a result, the wire capturing guide 50 changes from the standby posture PA4, which is separated from the traverse guide 31, to a state that gradually approaches the traverse guide 31, while switching to the capturing posture PA1.

[0154] Moreover, such as Figure 9 As shown, if the thread-catching guide 50 is in the catching posture PA1, the thread Y, which is reciprocating through the traverse device 30, comes into contact with the thread-catching guide 50. The contacting thread Y is guided along the inclination of the thread guide 54 to the opening 52 of the catching section 51, and enters the catching section 51 from the opening 52 and is caught.

[0155] Next, as Figure 10 As shown, the drive unit 61 is driven to move the wire-catching guide 50 forward, thereby switching the wire-catching guide 50 to the wire-pulling posture PA2. In the wire-pulling posture PA2, the wire-catching guide 50 moves the wire Y captured in the capturing posture PA1 to the position hooked on the wire fixing part S of the bobbin B.

[0156] Here, as Figure 7 (a) and Figure 7As shown in (b), the first connecting part 101 (first cam position) Figure 7 (a) and the second connecting part 102 (second cam position) Figure 7 (b) is arranged along the front-to-back direction. Therefore, when the guided part 76 is guided from the first connecting part 101 (first cam position) to the second connecting part 102 (second cam position) via the first path part 91, the posture of the insertion part 73 only changes in the front-to-back direction. Therefore, the wire-catching guide 50 switches from the catching posture PA1 to the wire-pulling posture PA2 while maintaining proximity to the traverse guide 31. Thus, the wire-catching guide 50 switches to the wire-pulling posture PA2 when the wire Y is caught. The axial position of the bobbin B in the wire-pulling posture PA2 (wire-pulling position) is the position where the wire Y can be hooked onto the wire fixing part S formed on the bobbin B.

[0157] like Figure 4 As shown, by holding the wire-catching guide 50 in the wire-pulling posture PA2, the wire Y is hooked and fixed to the wire fixing part S, and wire is pulled into the new bobbin B. A strip-shaped winding YB is formed at the front end of the bobbin B. Then, after the strip-shaped winding YB is formed, the wire-catching guide 50 is moved backward by the drive part 61.

[0158] like Figure 11 As shown, the drive unit 61 is driven to move the wire-catching guide 50 rearward, thereby switching the wire-catching guide 50 to the wire-disengagement posture PA3. The wire-disengagement posture PA3 is a posture in which the wire-catching guide 50 moves axially between the wire-pulling posture PA2 and the catching posture PA1 in the bobbin B, and the wire-catching guide 50 separates from the traverse guide 31 relative to the wire-pulling posture PA2, thereby releasing the wire Y captured in the catching posture PA1.

[0159] When the drive unit 61 is driven to move the wire-catching guide 50 backward, such as Figure 7 As shown in (c), the guided portion 76 is first guided parallel to the front-rear direction from the second connecting portion 102 (second cam position). Thus, the thread-catching guide 50 moves rearward parallel to the front while catching the thread Y. On the bobbin B, the portion forming the strip-shaped winding YB and the portion that winds the thread Y ( Figure 4 The part shown by the single-dotted line has a spiral tail that wraps around YT.

[0160] like Figure 7 (b) and Figure 7 As shown in (c), the second connecting part 102 (second cam position) Figure 7 (b) and the third connecting part 103 (third cam position) Figure 7In (c), the position differs not only in the front-to-back direction but also in the direction intersecting the front-to-back direction. Therefore, when the guided part 76 is guided from the second connecting part 102 (second cam position) to the third connecting part 103 (third cam position) via the second path part 92, the posture of the insertion part 73 changes not only in the front-to-back direction but also around the axis 73a. As a result, the wire-catching guide 50 swings from a state close to the traverse guide 31 to a state of gradual separation while switching to the wire-disengaging posture PA3.

[0161] When the wire-catching guide 50 swings to the state of disengagement from the traverse guide 31, as Figure 11 As shown in (c), the position of the thread Y relative to the thread-catching guide 50 changes. The thread Y moves to the opening 52 of the catching section 51 formed in the thread-catching guide 50, exits from the catching section 51 through the opening 52, and is thus released from the thread-catching guide 50. The thread Y released from the thread-catching guide 50 is caught by the blade guides 35 and 36, and is wound onto the bobbin B while reciprocating through the traverse device 30.

[0162] When the yarn Y is released from the yarn capture guide 50, as Figure 12 As shown, the drive unit 61 is driven to move the wire-catching guide 50 forward, thereby switching the wire-catching guide 50 to a standby position PA4. The standby position PA4 is a position in which the wire-catching guide 50 is moved to the standby position with the wire released and is separated from the traverse guide 31 compared to the wire-pulling position PA2. In other words, the standby position PA4 is a position in which the wire-catching guide 50, with the wire released, is moved away from the contact trajectory 32R in the axial direction of the bobbin B, i.e., the standby position, and the wire-catching guide 50 is moved upward relative to the contact trajectory 32R compared to the wire-pulling position PA2.

[0163] Here, as Figure 7 (c) and Figure 7 As shown in (d), the third connecting part 103 (third cam position) Figure 7 (c) and the fourth connecting part 104 (fourth cam position) (in Figure 7In (d), not only are the positions different in the front-to-back direction, but the positions are also further different in the direction intersecting the front-to-back direction. Therefore, when the guided part 76 is guided from the third connecting part 103 (third cam position) to the fourth connecting part 104 (fourth cam position) via the third path part 93, the change in the posture of the insertion part 73 around the axis 73a is further increased. Therefore, the wire-catching guide 50 swings in a manner that further separates from the traverse guide 31 while switching to the standby posture PA4. In the standby posture PA4, the wire-catching guide 50 is in a state that is more separated from the traverse guide 31 than in the wire-pulling posture PA2.

[0164] Figure 13 This diagram illustrates the distance between the wire guide 50 in its standby position and the wire channel. Figure 13 In the figure, the position of the traverse guide 31 under the wire drawing posture PA2 and the standby posture PA4 is related to the wire channel at the end of the traverse range R.

[0165] like Figure 13 As shown in (b), in the wire-drawing posture PA2, with the wire-catching guide 50 approaching the traverse guide 31, the wire-catching guide 50 is moved towards the wire-drawing position. Conversely, in the standby posture PA4, the wire-catching guide 50 is moved upwards, moving towards the standby position with the wire-catching guide 50 separated from the traverse guide 31 compared to the wire-drawing posture PA2. Furthermore, in this embodiment, the standby position and the wire-drawing position are at the same position axially in the bobbin B.

[0166] The wire Y, which reciprocates via the traverse device 30, reciprocates around the pivot guide 27, which is positioned upstream of the wire Y's travel direction DT. The wire Y travels while reciprocating from the pivot guide 27 toward the guide end 32 of the traverse guide 31, and while changing its tilt angle θ1 relative to the guide end 32. At both ends of the traverse range R, the tilt angle θ1 of the wire Y relative to the direction extending from the guide end 32 (the axial direction of the bobbin B) becomes the largest.

[0167] Therefore, upstream of the guide wire end 32 in the direction of travel DT of the wire Y, even if the axial position of the bobbin B is the same, the distance between the wire-catching guide 50 and the traveling wire Y decreases near the traversing guide 31. Furthermore, even if the axial position of the bobbin B is the same, the distance between the wire-catching guide 50 and the traveling wire Y increases as it separates from the traversing guide 31.

[0168] That is, upstream of the traverse guide 31 in the direction of travel DT of the yarn Y, the yarn-catching guide 50, when moved to the standby position and viewed axially from the bobbin B, shows that as the distance from the contact trajectory 32R decreases, the distance between the yarn-catching guide 50 and the traveling yarn Y also decreases. Conversely, viewed axially from the bobbin B, as the distance from the contact trajectory 32R increases, the distance between the yarn-catching guide 50 and the traveling yarn Y also increases.

[0169] exist Figure 13 In (b), the positions of the wire-catching guides 50 in both the wire-picking posture PA2 and the standby posture PA4 are the same along the axial direction of the bobbin B (wire-picking position and standby position). However, compared to the wire-picking posture PA2, the wire-catching guide 50 in the standby posture PA4 is more separated from the traverse guide 31. This is because, compared to the wire-picking posture PA2, the wire-catching guide 50 in the standby posture PA4 is located above the wire-picking posture PA2 when viewed from the axial direction of the bobbin B, and is at a greater distance from the contact trajectory 32R. Consequently, the distance L2 between the wire-catching guide 50 and the wire channel in the standby posture PA4 is greater than the distance L1 between the wire-picking posture PA2 and the wire channel.

[0170] In this way, the wire-catching guide 50 adopts a posture that is further away from the contact trajectory 32R in the standby posture PA4 compared to the wire-picking posture PA2, thereby ensuring the distance from the wire channel.

[0171] Variations The embodiments disclosed herein are illustrative in all respects and are not intended to be limiting. The scope of this invention is not limited to the above-described embodiments, but is defined based on the scope of the patent claims. Furthermore, the scope of this invention includes all modifications within the meaning and scope equivalent to the scope of the patent claims.

[0172] In this embodiment, the position of the wire-catching guide 50 along the axial direction of the bobbin B is the same in both the wire-pulling posture PA2 and the standby posture PA4, but this is not a limitation. The position of the wire-pulling posture PA2 (wire-pulling position) along the axial direction of the bobbin B can also be different from the position of the standby posture PA4 (standby position). For example, the position of the standby posture PA4 (standby position) along the axial direction of the bobbin B can be further away from the contact trajectory 32R than the position of the wire-pulling posture PA2 (wire-pulling position).

[0173] In this embodiment, a cam component is used for the guide portion, but it is not limited to this. For example, a path portion for guiding the guided portion may be formed directly in the guide portion body. Alternatively, a portion of the path portion may be formed by the cam component, and the remaining path portion may be formed directly in the guide portion body.

[0174] In this embodiment, a limiting portion (first limiting portion, second limiting portion, and third limiting portion) is provided in the cam component to limit the path. The second limiting portion and the third limiting portion are formed by a step on the cam surface, but other means may also be used. For example, the second limiting portion and the third limiting portion may be formed by a protrusion formed on the cam surface and a guided groove formed on the guided portion, similar to the first limiting portion.

[0175] In this embodiment, the posture of the wire-catching guide is switched between a posture close to the traverse guide and a posture separate from the traverse guide by oscillating the posture of the insertion portion held in the guide body about an axis, but this is not a limitation. Other structures can also be used to switch the posture of the wire-catching guide between a posture close to the traverse guide and a posture separate from the traverse guide. For example, the posture of the wire-catching guide can be switched between a posture close to the traverse guide and a posture separate from the traverse guide without oscillating the posture. For example, a mechanism that switches the posture of the wire-catching guide between a wire-pulling posture and a standby posture farther from the contact trajectory than the wire-pulling posture can be used, for example, a mechanism that operates a linkage mechanism via an actuator.

[0176] Industrial availability This invention can be applied to a spinning take-up device that winds multiple filaments spun from a spinning device into multiple bobbins to form multiple rolls.

[0177] Explanation of reference numerals in the attached figures 100 spinning take-up device 2 Spinning apparatus 22-tube support 27-point wire guide 30 lateral movement device 31 Transverse guide wire 32 guide wire end 40 wire hanging device 50-wire capture guide 60 guide wire drive unit 61 Drive Unit 70 Guiding Department 73a axis (oscillating axis) 76 Guided Department 91 First Path Section 92 Second Path Section 93 Third Path Section 94 Fourth Path Section 101 First connecting part (first cam position) 102 Second connecting part (second cam position) 103 Third connecting part (third cam position) 104 Fourth connecting part (fourth cam position) 120 Restriction Department 121 Second Restriction Section (First Step) 122 Third Restriction Section (Second Step) 141 First Restriction Section (Protrusion) Y-thread B tube S-wire fixing part R lateral movement range PA1 Capture Posture PA2 drawing technique PA3 thread unwinding posture PA4 standby position

Claims

1. A spinning take-up device for taking multiple filaments spun from a spinning device onto multiple bobbins, characterized in that, have: A tube support, arranged axially to hold the plurality of tubes; Multiple fulcrum wire guides deliver multiple wires toward the multiple bobbins; Multiple traverse devices, each having multiple traverse wire guides, guide multiple wires fed from the multiple pivot wire guides to reciprocate axially along the multiple bobbins, centered on the multiple pivot wire guides; and Multiple wire-hanging devices hook multiple wires to the wire-fixing parts formed in the multiple bobbins; The plurality of wire-hanging devices each have: A thread-catching guide that catches and releases the thread that reciprocates through the traverse device on the upstream side of the thread's travel direction compared to the traverse guide. as well as The guide wire drive component uses the trajectory defined by the reciprocating movement of the guide wire and the wire along the axial direction of the bobbin as the contact trajectory, and switches the posture of the wire-catching guide wire to a wire-pulling posture that moves the captured wire towards the wire fixing part hooked on the bobbin, and a standby posture that is farther away from the contact trajectory than the wire-pulling posture when the wire is released. By switching to the standby posture, the wire-catching guide leaves the contact trajectory in the axial direction of the bobbin and leaves the contact trajectory when viewed from the axial direction of the bobbin.

2. The spinning take-up device according to claim 1, wherein, The standby posture is a posture in which the wire-catching guide is moved to a standby position that is axially away from the contact trajectory on the bobbin, and which, when viewed from the axial direction of the bobbin, has moved upward relative to the contact trajectory compared to the wire-pulling posture.

3. The spinning take-up apparatus according to claim 1 or 2, wherein, The guide wire drive component switches the posture of the wire capturing guide to a capturing posture, which moves the wire capturing guide to a position capable of capturing the wire that reciprocates through the traverse device; switches from the capturing posture to a pulling posture, which moves the captured wire to a position hooked on the wire fixing part of the bobbin; switches from the pulling posture to a wire release posture, which moves axially along the bobbin between the pulling posture and the capturing posture and releases the wire captured in the capturing posture; and switches from the wire release posture to the standby posture.

4. The spinning take-up apparatus according to claim 3, wherein, The guide wire drive component includes: a drive section for driving the wire-catching guide wire along the axial direction of the bobbin; and a guide section for guiding the wire-catching guide wire along the axial direction of the bobbin. The guide portion has: a first path portion that guides the thread-catching guide to switch from the catching posture to the thread-picking posture; The second path section guides the thread-catching guide to switch from the thread-pulling posture to the thread-disengaging posture; The third path section guides the thread capture guide from the thread detachment posture to the standby posture; And the fourth path section guides the thread-catching guide to switch from the standby posture to the catching posture.

5. The spinning take-up apparatus according to claim 4, wherein, The guide wire drive component supports the wire-catching guide wire to be movable along the axial direction of the bobbin, and supports it to be able to swing about a swing axis extending along the axial direction of the bobbin. The guide portion guides the wire-catching guide along the axial direction of the bobbin and causes the wire-catching guide to swing relative to the contact trajectory by changing the distance when viewed from the axial direction of the bobbin, thereby switching the wire-catching guide to the wire-disengaging posture and the standby posture when viewed from the axial direction of the bobbin, where the distance between the wire-catching guide and the contact trajectory is greater than that distance when the wire-pulling posture is in the wire-disengaging posture.

6. The spinning take-up apparatus according to claim 4 or 5, wherein, The thread-catching guide is connected to the guided portion guided by the guide portion. The guide unit connects the second path unit and the fourth path unit to the first path unit, and connects the third path unit and the fourth path unit to the second path unit. The guiding part has a limiting part that restricts the path of guiding the guided part, so as to guide the guided part from the first path part to the second path part, from the second path part to the third path part, and from the third path part to the fourth path part.

7. The spinning take-up apparatus according to claim 6, wherein, The limiting part has: A first limiting part allows the guided part to enter from the first connection part between the first path part and the fourth path part toward the first path part, and prevents the guided part from entering toward the fourth path part; The second limiting part allows the guided part to enter from the second connection part between the first path part and the second path part toward the second path part, and prevents the guided part from entering toward the first path part; as well as The third limiting part allows the guided part to enter from the third connection part between the second path part and the third path part toward the third path part, and prevents the guided part from entering toward the second path part.

8. The spinning take-up apparatus according to claim 7, wherein, The second limiting portion is formed by a step between the first path portion and the second path portion. The third limiting part is formed by a step formed between the second path part and the third path part.

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