Yarn treatment device

Abstract

To easily dispose plural yarns having different pitches between an upstream side and a downstream side in a yarn running direction in plural yarn running spaces formed in a yarn treatment unit.SOLUTION: A yarn treatment device 7 includes a first holding guide 24 having plural first holding grooves 24a arrayed in an arrangement direction and a second holding guide 25 disposed on a downstream side in a yarn running direction relative to the first holding guide 24. The first holding guide 24 can take a first yarn hanging position where plural yarns Y can be hung onto the first holding guide 24 and a first disposition completion position where disposition of the plural yarns Y in plural yarn running spaces 31 is completed. The second holding guide 25 can take a second yarn hanging position where the plural yarns Y can be hung onto the second holding guide 25 and a second disposition completion position where disposition of the plural yarns Y in the plural yarn running spaces 31 is completed. The first holding guide 24 in the first yarn hanging position and the second holding guide 25 in the second yarn hanging position are adjacent to each other in the yarn running direction.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a yarn processing device that performs a predetermined process on yarns.

Background Art

[0002] Conventionally, a spinning production facility configured to wind a plurality of yarns spun from a spinning device with a winding device is known. For example, Patent Document 1 discloses a spinning production facility (spinning winding device of Cited Document 1) including a spinning device that spins a plurality of yarns downward and a yarn feed roller disposed below the spinning device for feeding the plurality of yarns.

[0003] In such a spinning production facility, a yarn processing device having a yarn processing unit such as a migration nozzle may be disposed on the yarn path between the spinning device and the yarn feed roller. A migration nozzle is a device that imparts convergence to yarns by utilizing the action of injection of compressed air. The migration nozzle has, for example, the same configuration as the entanglement portion of the entanglement device described in Patent Document 2. The migration nozzle has a plurality of yarn running spaces extending along the yarn running direction. Each yarn running space is arranged at a predetermined pitch in the arrangement direction of the plurality of yarns. The migration nozzle performs a process of imparting convergence to the plurality of yarns disposed in each yarn running space.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Here, multiple threads spun from a spinning machine are converged into a convergence section, such as a suction gun, and then arranged in multiple thread-running spaces. However, the pitch of the multiple threads in the arrangement direction gradually narrows towards the convergence section, and the multiple threads must be arranged in the thread-running spaces with different pitches on the upstream and downstream sides in the thread-running direction. This leads to the following problems.

[0006] As described above, the pitch of multiple threads gradually narrows towards the convergence point, so the pitch of multiple threads in the arrangement direction differs between the upstream and downstream sides in the thread travel direction. On the other hand, each thread travel space extending along the thread travel direction is aligned at a predetermined pitch in the arrangement direction. Therefore, even if the position of the convergence point is adjusted to match the pitch of multiple threads at the upstream end of the multiple thread travel spaces in the thread travel direction, it will not match the pitch at the downstream end of the multiple thread travel spaces. As a result, it is not possible to properly place multiple threads with different pitches in the arrangement direction on the upstream and downstream sides of the thread travel direction into each thread travel space. Therefore, currently, when placing multiple threads with different pitches in the arrangement direction on the upstream and downstream sides of the thread travel direction into each thread travel space, it is necessary for workers to place each thread one by one into each thread travel space, which is time-consuming.

[0007] Furthermore, this problem can occur not only in yarn processing devices that have migration nozzles as yarn processing devices, but also in the following types of yarn processing devices: In other words, the same problem can occur in yarn processing devices that apply a predetermined process to multiple yarns running in multiple yarn running spaces arranged at a predetermined pitch in the arrangement direction (for example, oil nozzles that apply oil to multiple yarns, or tension sensors that detect the tension of multiple yarns).

[0008] The objective of the present invention is to easily arrange multiple threads with different pitches on the upstream and downstream sides in the thread running direction into multiple thread running spaces formed in the thread processing section. [Means for solving the problem]

[0009] The yarn processing apparatus of the present invention comprises a yarn processing unit that applies a predetermined process to a plurality of yarns running in a plurality of yarn running spaces that extend along the yarn running direction and are arranged at a predetermined pitch in an arrangement direction intersecting the yarn running direction, and a yarn arrangement unit for arranging the plurality of yarns in the plurality of yarn running spaces, wherein the yarn arrangement unit comprises a first holding unit having a plurality of first holding grooves arranged in the arrangement direction, and a second holding unit that is arranged downstream of the first holding unit in the yarn running direction and holds the plurality of yarns while maintaining the pitch of the plurality of yarns held in the plurality of first holding grooves, wherein the plurality of yarns are entangled in the first holding unit The first thread-hanging position is capable of being a first thread-hanging position, and a first placement completion position is a position upstream of the thread-traveling space in the thread-traveling direction where the placement of multiple threads into the multiple thread-traveling spaces is completed. The second holding part is capable of being a second thread-hanging position where multiple threads are hung on the second holding part, and a second placement completion position is a position downstream of the thread-traveling space in the thread-traveling direction where the placement of multiple threads into the multiple thread-traveling spaces is completed. The first holding part at the first thread-hanging position and the second holding part at the second thread-hanging position are adjacent to each other in the thread-traveling direction.

[0010] It is difficult to arrange multiple threads, whose pitch in the arrangement direction differs between the upstream and downstream sides of the thread travel direction, in multiple thread travel spaces that extend along the thread travel direction and are aligned at a predetermined pitch in the arrangement direction. In this invention, since the first holding part at the first thread attachment position and the second holding part at the second thread attachment position are adjacent to each other in the thread travel direction, multiple threads can be attached to the first and second holding parts at the same intervals in the arrangement direction. Then, when the first holding part with multiple threads attached takes the first placement completion position and the second holding part with multiple threads attached takes the second placement completion position, the multiple threads can be arranged in multiple thread travel spaces with the pitch of the multiple threads and the multiple thread travel spaces aligned in the arrangement direction. For this reason, multiple threads with different pitches between the upstream and downstream sides of the thread travel direction can be easily arranged in multiple thread travel spaces aligned at a predetermined pitch in the arrangement direction.

[0011] The yarn processing apparatus of the present invention further comprises: a first regulating guide having a plurality of first grooves whose pitch in the arrangement direction is the same as that of the plurality of first holding grooves, positioned upstream of the yarn running space in the yarn running direction and at a position that allows the plurality of yarns passed over the plurality of first grooves to be placed in the plurality of yarn running spaces; and a second regulating guide having a plurality of second grooves whose pitch in the arrangement direction is the same as that of the plurality of first grooves, positioned downstream of the yarn running space in the yarn running direction and at a position that allows the plurality of yarns passed over the plurality of second grooves to be placed in the plurality of yarn running spaces. Preferably, the first position to be completed is the position in which the first holding part retracts from the thread path when multiple threads are looped around the first and second regulating guides, and the second position to be completed is the position in which the second holding part retracts from the thread path when multiple threads are looped around the first and second regulating guides, and the first holding part transfers multiple threads to the first regulating guide while moving from the first thread looping position to the first position to be completed, and the second holding part transfers multiple threads to the second regulating guide while moving from the second thread looping position to the second position to be completed.

[0012] One configuration involves arranging multiple threads in multiple thread-running spaces by passing them over a first restricting guide located upstream of the thread-running space and a second restricting guide located downstream in the thread-running direction. In such a configuration, the following problem arises when attempting to pass multiple threads with different pitches on the upstream and downstream sides of the thread-running direction over the first and second restricting guides. That is, even if the pitch of the multiple threads is matched to the pitch of one of the restricting guides, the pitches of the multiple threads will not match the pitch of the other restricting guide because the pitches of the multiple threads are different on the upstream and downstream sides of the thread-running direction. For this reason, it is difficult to pass multiple threads with different pitches on the upstream and downstream sides of the thread-running direction over the first restricting guide located upstream of the thread-running space and the second restricting guide located downstream. In this invention, after looping multiple threads together onto the first holding part at the first thread looping position and the second holding part at the second thread looping position, the first holding part is moved to the first placement completion position and the second holding part is moved to the second placement completion position, thereby making it easy to loop multiple threads together onto the first and second regulating guides. As a result, multiple threads with different pitches on the upstream and downstream sides in the thread running direction can be easily arranged in multiple thread running spaces that are aligned at a predetermined pitch in the arrangement direction.

[0013] In the yarn processing apparatus of the present invention, it is preferable that the second holding portion has a plurality of second holding grooves whose pitch in the arrangement direction is the same as that of the plurality of second groove portions.

[0014] According to the present invention, the pitch of the multiple threads hooked onto the second holding groove of the second holding part is the same as the pitch in the direction of arrangement of the multiple second grooves, so that each of the multiple threads can be reliably passed to the corresponding second groove. As a result, the threads can be accurately hooked onto the second regulating guide and the multiple threads can be accurately positioned into the multiple thread running spaces arranged in the direction of arrangement.

[0015] In the yarn processing apparatus of the present invention, the second holding portion is preferably a rotary roller that can rotate around a rotation axis along the arrangement direction.

[0016] According to the present invention, the multiple threads that are placed on the second holding section, which is a rotating roller, come into contact with the rotating roller's surface perpendicular to the surface of the rotating roller due to the frictional force between the rotating roller's surface and each thread. Therefore, the pitch of the multiple threads placed on the second holding section is the same as the pitch of the multiple threads placed on the first groove of the first holding section, which is located upstream of the second holding section in the thread travel direction. Furthermore, even if the pitch of the multiple threads traveling downstream of the second holding section in the thread travel direction differs from the pitch of the threads on the second holding section, the frictional force between the rotating roller's surface and each thread maintains the pitch of the multiple threads placed on the second holding section without shifting. Therefore, the pitch of the multiple threads placed on the second holding section becomes the same as the pitch in the direction of arrangement of the multiple first holding grooves, and consequently, the same as the pitch in the direction of arrangement of the multiple first grooves and the multiple second grooves. Therefore, each of the multiple threads can be reliably transferred to the corresponding second groove. This allows for accurate thread placement on the second regulating guide and accurate placement of the multiple threads in multiple thread travel spaces arranged in the direction of arrangement.

[0017] In the yarn processing apparatus of the present invention, it is preferable that the yarn placement section has an interlocking mechanism that links the movement of the first holding section between the first yarn-hanging position and the first placement completion position with the movement of the second holding section between the second yarn-hanging position and the second placement completion position.

[0018] If the thread is first transferred from one holding part to the regulating guide, there is a risk that the thread may become loose and detach from the regulating guide that has already been transferred when the thread is subsequently transferred from the other holding part to the regulating guide. According to the present invention, the transfer of the thread from the first holding part to the first regulating guide and the transfer of the thread from the second holding part to the second regulating guide can be performed at the same time. Therefore, the threading operation on the two regulating guides can be performed more reliably.

[0019] In the yarn processing apparatus of the present invention, the interlocking mechanism includes a first swing arm that is rotatable about a first swing axis along the arrangement direction and swingably supports the first holding portion, and a second swing arm that is rotatable about a second swing axis along the arrangement direction and swingably supports the second holding portion, wherein the first swing arm includes a first gear and the second swing arm includes a second gear, and the interlocking mechanism preferably links the movement of the first holding portion and the movement of the second holding portion by causing the first swing arm and the second swing arm to rotate in conjunction with each other through the meshing of the first gear and the second gear.

[0020] According to the present invention, the first and second oscillating arms rotate in conjunction with each other through the meshing of the first and second gears, thereby causing the first and second holding guides to oscillate in conjunction. Therefore, complex configurations and controls are not required to move the first and second holding guides in conjunction.

[0021] In the yarn processing apparatus of the present invention, the first yarn-hanging position is preferably a position where, when viewed from the arrangement direction, the first holding portion is moved away from the yarn path when multiple yarns are hung on the first and second regulating guides in the direction of the opening of the first groove, and the second yarn-hanging position is preferably a position where, when viewed from the arrangement direction, the second holding portion is moved away from the yarn path when multiple yarns are hung on the first and second regulating guides in the direction of the opening of the second groove.

[0022] According to the present invention, when a plurality of threads are hung on the first holding portion at the first thread-hanging position and the second holding portion at the second thread-hanging position, it is possible to prevent the threads from being inadvertently hung on the grooves in which the threads should not be hung among the plurality of first groove portions and the plurality of second groove portions. Then, by moving the first holding portion to the first arrangement completion position in a state where the thread is held by the first holding portion and not hung on the first restricting guide, the thread can be more surely hung on the first groove portion among the plurality of first groove portions where the thread should be hung. Similarly, by moving the second holding portion to the second arrangement completion position in a state where the thread is held by the second holding portion and not hung on the second restricting guide, the thread can be more surely hung on the second groove portion among the plurality of second groove portions where the thread should be hung.

[0023] In the thread processing apparatus of the present invention, it is preferable that the first restricting guide is arranged at a position that does not overlap with the thread paths of the plurality of threads hung on the first holding portion at the first thread-hanging position when viewed from the arrangement direction.

[0024] According to the present invention, when hanging a thread on the first holding portion at the first thread-hanging position, it is possible to further prevent the thread from being inadvertently hung on the first groove portion among the plurality of first groove portions where the thread should not be hung. Then, by moving the first holding portion to the first arrangement completion position in a state where the thread is held by the first holding portion and not hung on the first restricting guide, the thread can be more surely hung on the first groove portion among the plurality of first groove portions where the thread should be hung.

[0025] In the thread processing apparatus of the present invention, when the first holding portion is at the first arrangement completion position, it is upstream of the thread running space in the thread running direction and at a position where the plurality of threads held in the plurality of first holding grooves can be arranged in the plurality of thread running spaces, and when the second holding portion is at the second arrangement completion position, it is downstream of the thread running space in the thread running direction and at a position where the plurality of threads held in the plurality of second holding grooves can be arranged in the plurality of thread running spaces, which is preferable.

[0026] In the present invention, after a plurality of yarns having different pitches on the upstream side and the downstream side in the yarn running direction are collectively hung on a first holding portion at a first yarn hanging position and a second holding portion at a second yarn hanging position, the first holding portion is set as a first arrangement completion position, and the second holding portion is set as a second arrangement completion position. Thereby, even if the first regulation guide and the second regulation guide as described above are not arranged, a plurality of yarns having different pitches on the upstream side and the downstream side in the yarn running direction can be arranged in a plurality of yarn running spaces arranged at a predetermined pitch in the arrangement direction. For this reason, the number of members for arranging a plurality of yarns in a plurality of yarn running spaces can be reduced.

[0027] In the yarn processing apparatus of the present invention, the yarn arranging portion further has a regulating member that can be switched between a regulating state in which a plurality of yarns hung on the first holding portion and the second holding portion are regulated from being arranged in the yarn running space, and a released state in which the regulation is released. The regulating member takes the regulating state between when the first holding portion moves from the first yarn hanging position to the first arrangement completion position and when the second holding portion moves from the second yarn hanging position to the second arrangement completion position, and preferably takes the released state when the first holding portion reaches the first arrangement completion position and the second holding portion reaches the second arrangement completion position.

[0028] A plurality of yarns hung on the first holding portion and the second holding portion may be arranged in a plurality of yarn running spaces before each holding portion reaches the arrangement completion position. However, in this case, since each holding portion has not reached the arrangement completion position, there is a possibility that the plurality of yarns may not be appropriately arranged in the corresponding yarn running spaces. According to the present invention, it is possible to prevent a plurality of yarns from being arranged in a plurality of yarn running spaces before the first holding portion and the second holding portion reach the arrangement completion positions. For this reason, a plurality of yarns can be appropriately arranged in the corresponding plurality of yarn running spaces.

[0029] In the yarn processing apparatus of the present invention, it is preferable that the second holding portion has a plurality of second holding grooves having the same pitch in the arrangement direction as the plurality of first holding grooves.

[0030] According to the present invention, the first retaining part can be set to the first position and the second retaining part to the second position while maintaining the pitch of the multiple threads hooked onto the second retaining groove of the second retaining part to be the same as the pitch in the arrangement direction of the multiple first retaining grooves. Therefore, multiple threads with different pitches on the upstream and downstream sides in the thread running direction can be reliably arranged in multiple thread running spaces arranged at a predetermined pitch in the arrangement direction.

[0031] In the yarn processing apparatus of the present invention, the second holding portion is preferably a rotary roller that can rotate around a rotation axis along the arrangement direction.

[0032] According to the present invention, the multiple threads that are placed on the second holding part, which is a rotating roller, come into contact with the rotating roller at a right angle to the circumferential surface due to the frictional force between the circumferential surface of the rotating roller and each thread. Therefore, the pitch of the multiple threads placed on the second holding part matches the pitch of the multiple threads placed on the first groove of the first holding part, which is located upstream of the second holding part in the thread travel direction. Furthermore, even if the pitch of the multiple threads traveling downstream of the second holding part in the thread travel direction differs from the pitch of the threads on the second holding part, the frictional force between the circumferential surface of the rotating roller and each thread maintains the pitch of the multiple threads placed on the second holding part without shifting. In this state, by setting the first holding part to the first completed position and the second holding part to the second completed position, multiple threads with different pitches on the upstream and downstream sides in the thread travel direction can be reliably arranged in multiple thread travel spaces arranged at a predetermined pitch in the arrangement direction. [Brief explanation of the drawing]

[0033] [Figure 1] This is a schematic diagram of the spinning production equipment. [Figure 2] This is a front view of the thread processing device when the first retaining guide is in the first thread position and the second retaining guide is in the second thread position. [Figure 3] This is a view of the yarn processing device from the front when the first holding guide is in the first position and the second holding guide is in the second position. [Figure 4] This is a cross-sectional view of a portion of the thread processing section, parallel to the left-right and front-back directions. [Figure 5] This is a view of the yarn processing device from the right side, with the first retaining guide in the first yarn position and the second retaining guide in the second yarn position. [Figure 6] This is a view of the yarn processing device from the right side, when the first holding guide is in the first position and the second holding guide is in the second position. [Figure 7] This is a view of the thread processing device from the left side, with the first retaining guide in the first thread position and the second retaining guide in the second thread position. [Figure 8] This is a view of the yarn processing device from the left side, when the first holding guide is in the first position and the second holding guide is in the second position. [Figure 9] This is a view of the thread processing device according to the first modified example, seen from the front. [Figure 10] This is a view from the left side of the yarn processing device according to the second modified example, when the first retaining guide is in the first thread-hanging position and the second retaining guide is in the second thread-hanging position. [Figure 11] This is a view from the left side of the yarn processing device according to the second modified example, when the first retaining guide is in the first position completion position and the second retaining guide is in the second position completion position. [Modes for carrying out the invention]

[0034] Embodiments of the present invention will be described below with reference to the drawings.

[0035] (Overall configuration of spinning production equipment 1) Preferred embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a diagram showing the schematic configuration of the spinning production equipment 1. Hereinafter, the vertical direction on the paper of Figure 1 will be referred to as the vertical direction, and the horizontal direction on the paper will be referred to as the horizontal direction. Also, the direction perpendicular to the paper of Figure 1 will be referred to as the front-to-back direction, and the front of the paper will be referred to as the front. Hereafter, the above directional terms will be used as appropriate in the explanation.

[0036] The spinning production equipment 1 is configured to wind up multiple yarns Y spun from the spinning device 2 using a winding device 4. The spinning device 2 is a device that spins molten polymer downward as yarn Y. As shown in Figure 1, the spinning production equipment 1 includes multiple oil guides 5, each equipped with an oil nozzle, multiple guide guides 6, a yarn processing device 7, two godet rollers 11 and 12, a spinning and drawing device 3, and a winding device 4. The spinning device 2, and the multiple oil guides 5 and multiple guide guides 6 located below it, are located on the upper floor (second floor). The yarn processing device 7, the two godet rollers 11 and 12, the spinning and drawing device 3, and the winding device 4 are located on the lower floor (first floor).

[0037] Multiple oil guides 5 are positioned below the spinning apparatus 2 and apply oil to each of the multiple yarns Y spun downward from the spinning apparatus 2. Multiple guide 6 are positioned at equal intervals in the left-right direction below each of the multiple oil guides 5 and individually guide the multiple yarns Y to which the oil has been applied.

[0038] The yarn processing device 7 is positioned below the multiple guides 6 and is a device that uses the action of compressed air injection to give bundle properties to multiple yarns Y that are individually guided by the multiple guides 6. The yarn processing device 7 has a first restricting guide 22 and a second restricting guide 23 (see Figure 2). The multiple yarns Y that are placed on the first restricting guide 22 and the second restricting guide 23 run approximately parallel to each other and at approximately equal intervals in the left-right direction. Details of the yarn processing device 7 will be described later.

[0039] As shown in Figure 1, the godet rollers 11 and 12 are positioned downstream of the yarn processing device 7 in the yarn travel direction and are rotationally driven by a motor (not shown). Multiple yarns Y spun from the spinning device 2 are wound onto the godet roller 11 via the oil guide 5, guide guide 6, and yarn processing device 7, and are sent by the godet roller 11 to the spinning and drawing device 3. Multiple yarns Y that have been heated and drawn by the spinning and drawing device 3 are wound onto the godet roller 12 and sent by the godet roller 12 to the winding device 4. In reality, an entanglement device and another godet roller are positioned downstream of the godet roller 12 in the yarn travel direction and upstream of the winding device 4, but these are omitted from Figure 1.

[0040] The spinning and drawing device 3 is a device for heating and drawing multiple yarns Y, and is located below the spinning device 2. The spinning and drawing device 3 has a heat-insulating box 60 and five godet rollers 91 to 95 housed inside the heat-insulating box 60. A yarn inlet 60a for introducing multiple yarns Y into the heat-insulating box 60 is formed at the lower part of the right side of the heat-insulating box 60, and a yarn outlet 60b for leading multiple yarns Y out of the heat-insulating box 60 is formed at the upper part of the right side of the heat-insulating box 60.

[0041] The three lower godet rollers 91-93 are preheating rollers for preheating multiple threads Y before stretching, while the two upper godet rollers 94 and 95 are tempering rollers for heat-setting the stretched threads Y. The roller surface temperature of the two upper godet rollers 94 and 95 is set higher than that of the three lower godet rollers 91-93. Also, the thread feeding speed of the two upper godet rollers 94 and 95 is faster than that of the three lower godet rollers 91-93.

[0042] Multiple threads Y introduced into the insulated box 60 via the thread inlet 60a are first preheated to a stretchable temperature while being fed by godet rollers 91-93. The preheated threads Y are then stretched by the difference in thread feeding speed between godet roller 93 and godet roller 94. Furthermore, the threads Y are heated to an even higher temperature while being fed by godet rollers 94 and 95, and the stretched state is heat-set. The stretched threads Y are then led out of the insulated box 60 via the thread outlet 60b.

[0043] The winding device 4 is a device for winding multiple threads Y and is located below the spinning and drawing device 3. The winding device 4 includes a bobbin holder 13 and contact rollers 14, etc. The bobbin holder 13 has a cylindrical shape extending in the front-rear direction and is rotationally driven by a motor (not shown). Multiple bobbins B are mounted on the bobbin holder 13 in an orderly fashion along its axial direction. By rotating the bobbin holder 13, the winding device 4 simultaneously winds multiple threads Y onto multiple bobbins B, producing multiple packages P. The contact rollers 14 contact the surfaces of the multiple packages P, applying a predetermined contact pressure to shape the packages P.

[0044] (Thread processing device 7) Next, the yarn processing device 7 will be described in detail with reference to Figures 2 to 8. Note that in Figures 2 and 3, for illustrative purposes, some of the yarns Y have been omitted from the description of the multiple yarns Y. Similarly, in Figures 7 and 8, the description of yarn Y has been omitted for illustrative purposes. The yarn processing device 7 includes a base material 20, a yarn processing unit 21, a first regulating guide 22, a second regulating guide 23, and a yarn placement unit 50.

[0045] The base material 20 is a component with a roughly rectangular parallelepiped shape. The yarn processing unit 21 is a device that uses the action of compressed air injection to give bundle properties to multiple yarns Y. As shown in Figures 3 and 4, the yarn processing unit 21 is formed on the front surface of the base material 20 in the front-rear direction by having multiple entanglement pieces 26 arranged in the left-right direction. As shown in Figure 1, the yarn processing unit 21 is located below the multiple guide 6 and above the godet roller 11.

[0046] As shown in Figure 4, the yarn processing section 21 has a plurality of yarn travel spaces 31, a plurality of yarn introduction paths 32, and a plurality of injection channels 33. The plurality of yarn travel spaces 31 extend along the yarn travel direction and are arranged at approximately equal pitches in an arrangement direction (left-right direction in Figure 4) that intersects the yarn travel direction. The pitch of the yarn travel spaces 31 is the distance between the centers of adjacent yarn travel spaces 31. In addition, one yarn travel space 31 is formed on each entanglement piece 26. The yarn travel space 31 is formed in an approximately elliptical shape with the left-right direction as the longitudinal direction when viewed from the yarn travel direction. In the yarn travel direction, it extends along the entire length of the entanglement piece 26 and has openings at both ends.

[0047] The multiple thread introduction paths 32 are paths provided individually for each of the multiple thread running spaces 31 for introducing the thread Y into the thread running spaces 31. The thread introduction paths 32 extend along the entire length of the entanglement piece 26 in the thread running direction and are open at both ends. The thread introduction paths 32 also include a first thread path 36, a second thread path 37, and a third thread path 38.

[0048] The first thread path 36 is a gap formed between two adjacent entanglement pieces 26, extending in the front-to-back direction in approximately the front half of the entanglement piece 26, with the front end in the front-to-back direction serving as the thread Y insertion opening 36a.

[0049] The second thread path 37 is connected to the rear end of the first thread path 36 in the front-rear direction and extends to the right from the connection point with the first thread path 36. The third thread path 38 is connected to the right end of the second thread path 37 and extends towards the front in the front-rear direction from the connection point with the second thread path 37. The front end of the third thread path 38 in the front-rear direction is connected to the thread running space 31.

[0050] Furthermore, as shown in Figure 4, the approximately left half of the front surface of the entanglement piece 26 in the front-to-back direction, relative to the approximate center, is an inclined surface 26a that is tilted in the left-to-right direction such that its left end is behind the approximate center. In this embodiment, the approximate center of the front surface of the entanglement piece 26 is slightly to the right of the actual center. Also, the approximately right half of the front surface of the entanglement piece 26 in the front-to-back direction, relative to the approximate center, is an inclined surface 26b that is tilted in the left-to-right direction such that its right end is behind the approximate center. Thus, the inclined surfaces 26a and 26b are located on both sides of the first thread path 36 in the left-to-right direction. As a result, each thread Y, which runs approximately parallel to each other by being hooked onto the first regulating guide 22 and the second regulating guide 23 described later, is guided by the inclined surfaces 26a and 26b and inserted into the first thread path 36.

[0051] Multiple injection channels 33 are individually provided for multiple thread travel spaces 31. One injection channel 33 is formed for each entanglement piece 26, extending in the front-rear direction, and its tip (front end) is an injection port 33a that opens into the rear wall surface in the front-rear direction at the connection point between the second thread path 37 and the third thread path 38. As a result, the injection port 33a faces the thread travel space 31 in the front-rear direction via the third thread path 38. The rear end of the injection channel 33 is connected to the fluid supply source 40 via a fluid supply channel 43. A valve 39 is provided in the fluid supply channel 43. When the valve 39 is opened, a fluid such as air supplied from the fluid supply source 40 is supplied to the injection channel 33 via the fluid supply channel 43 and injected into the thread travel space 31 from the injection port 33a of the injection channel 33. This generates a swirling flow within the thread travel space 31, concentrating the filaments that form the thread Y traveling through the thread travel space 31.

[0052] As shown in Figures 2 and 5, the first regulating guide 22 is positioned on the front surface of the base material 20 in the front-rear direction, upstream of the yarn processing section 21 in the yarn running direction. As shown in Figure 2, the first regulating guide 22 has a plurality of first grooves 22a arranged at equal pitches in the left-right direction, which is the arrangement direction of the plurality of yarns Y. The pitch of the first grooves 22a is the distance between the centers of adjacent first grooves 22a. The pitch of the plurality of first grooves 22a is the same as the pitch of the plurality of yarn running spaces 31. The first grooves 22a open toward the front in the front-rear direction. The direction toward the front in the front-rear direction corresponds to the opening direction of the first grooves 22a in this invention. Also, as shown in Figure 5, the first regulating guide 22 is positioned so as not to overlap with the yarn paths of the plurality of yarns Y that are hooked onto the first holding guide 24 (described later) at the first yarn hooking position when viewed from the left-right direction. In other words, the first regulating guide 22 is positioned behind the thread paths of the multiple threads Y that are hooked onto the first holding guide 24 at the first thread hooking position, in the front-to-back direction.

[0053] As shown in Figures 2 and 5, the second regulating guide 23 is positioned on the front surface of the base material 20 in the front-rear direction, downstream of the yarn processing section 21 in the yarn running direction. As shown in Figure 2, the second regulating guide 23 has a plurality of second grooves 23a arranged in the left-right direction at the same pitch as the plurality of first grooves 22a. The pitch of the second grooves 23a is the distance between the centers of adjacent second grooves 23a. The second grooves 23a open toward the front in the front-rear direction. The direction toward the front in the front-rear direction corresponds to the opening direction of the second grooves 23a in this invention.

[0054] The multiple first grooves 22a and the multiple second grooves 23a are positioned approximately the same in the left-right direction. The yarn Y traveling in the yarn direction passes between adjacent first grooves 22a and between adjacent second grooves 23a, thereby restricting the left-right movement of the yarn Y and defining the yarn path. In addition, the first restricting guide 22 and the second restricting guide have the function of supporting the yarn Y when the yarn processing unit 21 imparts bundleness to the yarn Y.

[0055] The yarn arrangement section 50 is for arranging multiple yarns Y in multiple yarn running spaces 31. The yarn arrangement section 50 includes a first holding guide 24 (first holding section of the present invention), a second holding guide 25 (second holding section of the present invention), and an interlocking mechanism 30.

[0056] The first holding guide 24 is a guide capable of holding multiple threads Y that are placed on the first restricting guide 22. The first holding guide 24 is a cylindrical member extending in the left-right direction and has multiple first holding grooves 24a whose left-right pitch is the same as the left-right pitch of multiple first grooves 22a. The pitch of the first holding grooves 24a is the distance between the centers of adjacent first holding grooves 24a. The movement of the multiple threads Y placed on the first holding grooves 24a is restricted in the left-right direction. The multiple first grooves 22a and the multiple first holding grooves 24a are located approximately the same in the left-right direction. The first holding guide 24 is movable between a first thread placement position (see Figures 2 and 5) where multiple threads Y are placed on the first holding guide 24 and a first placement completion position (see Figures 3 and 6) where it retracts from the thread path when multiple threads Y are placed on the first restricting guide 22 and the second restricting guide 23. The thread path when multiple threads Y are looped around the first and second guides 22 and 23 is the thread path of thread Y shown in Figure 6.

[0057] As shown in Figures 2 and 5, when the first holding guide 24 is in the first thread-hanging position, it is located downstream of the first restricting guide 22 in the thread-running direction and in front of the thread-processing section 21 in the front-rear direction. Furthermore, as shown in Figure 5, when the first holding guide 24 is in the first thread-hanging position, when viewed from the left and right directions, it is positioned in front of the thread path when multiple threads Y are hung on the first restricting guide 22 and the second restricting guide 23. Also, as shown in Figures 3 and 6, when the first holding guide 24 is in the first arrangement completion position, it is located upstream of the first restricting guide 22 in the thread-running direction and behind the first restricting guide 22 in the front-rear direction. The first holding guide 24 transfers each of the multiple threads Y to the corresponding multiple first grooves 22a while moving from the first thread-hanging position to the first arrangement completion position.

[0058] The second retaining guide 25 is a guide capable of holding multiple threads Y that are placed on the first restricting guide 22. The second retaining guide 25 is positioned downstream of the first retaining guide 24 in the thread travel direction. The second retaining guide 25 is a cylindrical member extending in the left-right direction and has multiple second retaining grooves 25a whose left-right pitch is the same as the left-right pitch of multiple second grooves 23a. The pitch of the second grooves 25a is the distance between the centers of adjacent second grooves 25a. The movement of multiple threads Y placed on the second retaining grooves 25a is restricted in the left-right direction. The multiple second grooves 23a and the multiple second retaining grooves 25a are positioned approximately the same in the left-right direction. The second holding guide 25 is movable between a second thread-hanging position (see Figures 2 and 5) where multiple threads Y are looped around the second holding guide 25, and a second position where it is retracted from the thread path when multiple threads Y are looped around the first regulating guide 22 and the second regulating guide 23 (see Figures 3 and 6).

[0059] As shown in Figures 2 and 5, when the second holding guide 25 is in the second thread-hanging position, it is located upstream of the second restricting guide 23 and downstream of the first holding guide 24 in the thread-running direction, and in front of the thread-processing section 21 in the front-to-back direction. Furthermore, as shown in Figure 5, when the second holding guide 25 is in the second thread-hanging position, when viewed from the left and right directions, it is deviated in the front-to-back direction from the thread path when multiple threads Y are hung on the first restricting guide 22 and the second restricting guide 23. Also, as shown in Figures 3 and 6, when the second holding guide 25 is in the second arrangement completion position, it is located downstream of the second restricting guide 23 in the thread-running direction, and behind the second restricting guide 23 in the front-to-back direction. The second holding guide 25 transfers each of the multiple threads Y to the corresponding multiple second grooves 23a while moving from the second thread-hanging position to the second arrangement completion position.

[0060] As shown in Figures 2 and 5, the first retaining guide 24 at the first thread position and the second retaining guide 25 at the second thread position are adjacent to each other in the thread travel direction. Here, being adjacent to each other means that the distance between the first retaining guide 24 and the second retaining guide 25 is between 0 and 10 mm.

[0061] The interlocking mechanism 30 links the movement of the first holding guide 24 between the first thread-hanging position and the first completed position with the movement of the second holding guide 25 between the second thread-hanging position and the second completed position. As shown in Figure 7, the interlocking mechanism 30 has a first swing arm 41 that can rotate around a first swing axis 51 along the left-right direction, and a second swing arm 42 that can rotate around a second swing axis 52 along the left-right direction.

[0062] As shown in Figure 2, the first swing arm 41 cantilever-supports the left end of the first holding guide 24 with its tip. By rotating the first swing arm 41 around the first swing axis 51, the first holding guide 24 can swing between the first thread-holding position and the first completed position. When the first holding guide 24 is in the first thread-holding position, the first swing arm 41 is extended in the front-rear direction (see Figure 7). When the first holding guide 24 is in the first completed position, the first swing arm 41 is extended diagonally upward and forward (see Figure 8).

[0063] Furthermore, as shown in Figure 2, the second swing arm 42 cantilever-supports the left end of the second holding guide 25 with its tip. By rotating the second swing arm 42 around the second swing axis 52, the second holding guide 25 can swing between the second thread-holding position and the second completed position. When the second holding guide 25 is in the second thread-holding position, the second swing arm 42 is extended in the front-rear direction (see Figure 7). When the second holding guide 25 is in the second completed position, the second swing arm 42 is extended diagonally downward and forward (see Figure 8).

[0064] Furthermore, as shown in Figure 7, the first oscillating arm 41 includes a first gear 53 composed of four teeth, and the second oscillating arm 42 includes a second gear 54 composed of five teeth. The first gear 53 and the second gear 54 mesh with each other. Note that the first gear 53 does not necessarily have to have four teeth, and the second gear 54 does not necessarily have to have five teeth.

[0065] The interlocking mechanism 30 rotates the first swing arm 41 and the second swing arm 42 in conjunction with each other through the meshing of the first gear 53 and the second gear 54. The interlocking mechanism 30 includes, for example, a motor (not shown) that rotates either the first swing shaft 51 or the second swing shaft 52. However, the interlocking mechanism 30 is not limited to having a motor; for example, it may have a lever (not shown) attached to either the first swing arm 41 or the second swing arm 42. In this case, when a worker pulls the lever, the rotation of either the first swing arm 41 or the second swing arm 42 is started. As a result, the other of the first swing arm 41 or the second swing arm 42 rotates in conjunction with the first gear 53 and the second gear 54, respectively.

[0066] (Threading onto the thread processing device 7) Next, the specific procedure for threading multiple threads Y onto the first regulating guide 22 and the second regulating guide 23 of the yarn processing device 7 will be described. In the spinning production equipment 1, after the threads are threaded onto the guide 6, the threads are threaded onto the two regulating guides of the yarn processing device 7. Threading onto the first regulating guide 22 and the second regulating guide 23 of the yarn processing device 7 is performed, for example, using a suction gun 80 (the converging unit of the present invention). The suction gun 80 converges multiple threads Y while sucking them up.

[0067] Before threading the thread processing device 7, the interlocking mechanism 30 pre-moves the first holding guide 24 to the first threading position and the second holding guide 25 to the second threading position (see Figure 2). Then, as shown in Figure 5, the worker places the multiple threads Y, which are being sucked up together by the suction gun 80, into the first holding grooves 24a of the first holding guide 24 and the second holding grooves 25a of the second holding guide 25. At this time, the worker threads the threads while adjusting the position of the suction gun 80 so that the spacing between the multiple threads Y sucked into the suction port 81 of the suction gun 80 matches the spacing between the first holding grooves 24a of the first holding guide 24 at the first threading position and the spacing between the second holding grooves 25a of the second holding guide 25 at the second threading position.

[0068] Next, the interlocking mechanism 30 moves the first retaining guide 24, which is in the first thread-hanging position, toward the first completed position, and in conjunction with this, moves the second retaining guide 25, which is in the second thread-hanging position, toward the second completed position. Specifically, when viewed from the right side in the left-right direction, the first swing arm 41 rotates counterclockwise around the first swing axis 51 (solid arrow in Figure 7), causing the first retaining guide 24 to swing from the first thread-hanging position toward the first completed position. Also, when viewed from the right side in the left-right direction, the second swing arm 42 rotates clockwise around the second swing axis 52 (solid arrow in Figure 7), causing the second retaining guide 25 to swing from the second thread-hanging position toward the second completed position.

[0069] Multiple threads Y held in the first holding guide 24 are transferred to each of the first grooves 22a of the first regulating guide 22 as the first holding guide 24 moves from the first thread-hanging position to the first placement completion position. Specifically, after the threads Y that are hung in the first holding groove 24a come into contact with the bottom of the first groove 22a of the first regulating guide 22, the first holding guide 24 moves further toward the first placement completion position, thereby transferring the threads Y that are hung in the first holding groove 24a to the first groove 22a. This completes the thread-hanging operation on the first regulating guide 22.

[0070] Multiple threads Y held by the second holding guide 25 are transferred to each second groove 23a of the second restricting guide 23 as the second holding guide 25 moves from the second thread-hanging position to the second placement completion position. Specifically, after the thread Y that is hung in the second holding groove 25a comes into contact with the bottom of the second groove 23a of the second restricting guide 23, the second holding guide 25 moves further toward the second placement completion position, thereby transferring the thread Y that is hung in the second holding groove 25a to the second groove 23a. This completes the thread-hanging operation on the second restricting guide 23.

[0071] Multiple threads Y, which are placed on the first regulating guide 22 and the second regulating guide 23, are guided by the inclined surfaces 26a and 26b of the thread processing unit 21 and inserted into the first thread path 36.

[0072] (effect) The yarn processing device 7 of this embodiment includes a first holding guide 24 capable of taking a first yarn-hanging position and a first arrangement completion position, and a second holding guide 25 capable of taking a second yarn-hanging position and a second arrangement completion position. The first holding guide 24 at the first yarn-hanging position and the second holding guide 25 at the second yarn-hanging position are adjacent to each other in the yarn-running direction. It is difficult to arrange multiple yarns Y converging toward the suction gun 80, where the pitch in the left-right direction (arrangement direction) differs between the upstream and downstream sides in the yarn-running direction, in multiple yarn-running spaces 31 that extend along the yarn-running direction and are arranged at a predetermined pitch in the left-right direction. In this embodiment, since the first holding guide 24 at the first yarn-hanging position and the second holding guide 25 at the second yarn-hanging position are adjacent to each other in the yarn-running direction, multiple yarns Y can be hung together on the first holding guide 24 and the second holding guide 25 at the same intervals in the left-right direction. Then, when the first holding guide 24, on which multiple threads Y are attached, takes the first placement completion position, and the second holding guide 25, on which multiple threads Y are attached, takes the second placement completion position, the multiple threads Y can be placed in the multiple thread running spaces 31 with the pitch between the multiple threads Y and the multiple thread running spaces 31 aligned in the left-right direction. For this reason, multiple threads Y with different pitches on the upstream and downstream sides in the thread running direction can be easily placed in the multiple thread running spaces 31 that are arranged at a predetermined pitch in the left-right direction.

[0073] The yarn processing device 7 of this embodiment has a first restricting guide 22 positioned upstream of the yarn running space 31 in the yarn running direction, and a second restricting guide 23 positioned downstream. The first placement completion position is the position where the first holding guide 24 retracts from the yarn path when multiple yarns Y are placed on the first restricting guide 22 and the second restricting guide 23, and the second placement completion position is the position where the second holding guide 25 retracts from the yarn path when multiple yarns Y are placed on the first restricting guide 22 and the second restricting guide 23. The first holding guide 24 transfers multiple yarns Y to the first restricting guide 22 while moving from the first yarn placement position to the first placement completion position. The second holding guide 25 transfers multiple yarns Y to the second restricting guide 23 while moving from the second yarn placement position to the second placement completion position. The following problems arise when attempting to place multiple yarns Y with different pitches on the upstream and downstream sides in the yarn running direction on the first restricting guide 22 and the second restricting guide 23. In other words, even if the pitch of multiple threads Y is matched to the pitch of either the first regulating guide 22 or the second regulating guide 23, the pitch of the multiple threads Y differs between the upstream and downstream sides in the thread running direction, so it does not match the pitch of the other regulating guide. In this embodiment, after looping multiple threads Y together onto the first holding guide 24 at the first thread looping position and the second holding guide 25 at the second thread looping position, the first holding guide 24 is moved to the first placement completion position and the second holding guide 25 is moved to the second placement completion position, making it easy to loop multiple threads Y together onto the first regulating guide 22 and the second regulating guide 23. As a result, multiple threads Y with different pitches on the upstream and downstream sides in the thread running direction can be easily arranged in multiple thread running spaces 31 arranged at a predetermined pitch in the left-right direction.

[0074] Furthermore, in this embodiment, the second retaining guide 25 has a plurality of second retaining grooves 25a whose left-right pitch is the same as the left-right spacing of the plurality of second grooves 23a. As a result, the spacing of the plurality of threads Y that are looped in the second retaining grooves 25a of the second retaining guide 25 is the same as the left-right spacing of the plurality of second grooves 23a, so that each of the plurality of threads Y can be reliably passed by the corresponding second groove 23a. This makes it possible to accurately loop the threads onto the second regulating guide 23 and to accurately position the plurality of threads Y in the plurality of thread running spaces 31 that are arranged in the left-right direction.

[0075] Furthermore, in this embodiment, the thread placement section 50 has an interlocking mechanism 30 that links the movement of the first holding guide 24 between the first thread-hanging position and the first retracted position with the movement of the second holding guide 25 between the second thread-hanging position and the second retracted position. If only the transfer of thread Y from one holding guide to the restricting guide is performed first, there is a risk that the thread Y may float and detach from the restricting guide, which has already completed the transfer of thread Y, when the transfer of thread Y from the other holding guide to the restricting guide is performed afterward. According to this embodiment, the transfer of thread Y from the first holding guide 24 to the first restricting guide 22 and the transfer of thread Y from the second holding guide 25 to the second restricting guide 23 can be performed at the same time. Therefore, the thread-hanging work on the first restricting guide 22 and the second restricting guide 23 can be performed more reliably.

[0076] Furthermore, in this embodiment, the interlocking mechanism 30 includes a first swing arm 41 that is rotatable around a first swing axis 51 along the left-right direction and swingably supports the first holding guide 24, and a second swing arm 42 that is rotatable around a second swing axis 52 along the left-right direction and swingably supports the second holding guide 25. The first swing arm 41 includes a first gear 53, and the second swing arm 42 includes a second gear 54. The interlocking mechanism 30 rotates the first swing arm 41 and the second swing arm 42 in conjunction by the meshing of the first gear 53 and the second gear 54, thereby linking the movement of the first holding guide 24 and the movement of the second holding guide 25. As a result, the first swing arm 41 and the second swing arm 42 rotate in conjunction by the meshing of the first gear 53 and the second gear 54, thereby allowing the first holding guide 24 and the second holding guide 25 to swing in conjunction. Therefore, complex configurations and controls are unnecessary to move the first holding guide 24 and the second holding guide 25 in conjunction.

[0077] Furthermore, in this embodiment, the first thread-hanging position is such that, when viewed from the left and right directions, the first retaining guide 24 is positioned away from the thread path when multiple threads Y are hung on the first restricting guide 22 and the second restricting guide 23, towards the front in the front-rear direction, that is, towards the opening direction of the first groove 22a. The second thread-hanging position is such that, when viewed from the left and right directions, the second retaining guide 25 is positioned away from the thread path when multiple threads Y are hung on the first restricting guide 22 and the second restricting guide 23, towards the front in the front-rear direction, that is, towards the opening direction of the second groove 23a. This makes it possible to prevent threads Y from being unintentionally hung on grooves among the multiple first grooves 22a and multiple second grooves 23a where threads Y should not be hung when multiple threads Y are hung on the first retaining guide 24 at the first thread-hanging position and the second retaining guide 25 at the second thread-hanging position. Furthermore, by moving the first retaining guide 24 to the first retracted position while the thread Y is held in the first retaining guide 24 and the thread Y is not looped over the first restricting guide 22, the thread Y can be more reliably looped over the first groove 22a to which the thread Y is to be looped among the multiple first grooves 22a. Similarly, by moving the second retaining guide 25 to the second retracted position while the thread Y is held in the second retaining guide 25 and the thread Y is not looped over the second restricting guide 23, the thread Y can be more reliably looped over the second groove 23a to which the thread Y is to be looped among the multiple second grooves 23a.

[0078] Furthermore, in this embodiment, the first restricting guide 22 is positioned so as not to overlap with the thread paths of the multiple threads Y that are looped around the first holding guide 24 at the first thread looping position when viewed from the left or right direction. This further suppresses the unintentional looping of the thread Y into a first groove 22a where the thread Y should not be looped, when looping the thread Y onto the first holding guide 24 at the first thread looping position. Then, by moving the first holding guide 24 to the first retracted position while the thread Y is held by the first holding guide 24 and the thread Y is not looped around the first restricting guide 22, the thread Y can be more reliably looped into the first groove 22a where the thread Y should be looped.

[0079] (modified version) The following describes modified versions of the above embodiment. However, components having the same configuration as the above embodiment are denoted by the same reference numerals and their descriptions are omitted as appropriate.

[0080] (First variation) In the above embodiment, the second retaining guide 25 has a plurality of second retaining grooves 25a whose spacing in the left-right direction is the same as the spacing in the left-right direction of a plurality of second grooves 23a. However, the second retaining guide may also have a configuration without grooves. For example, as shown in Figure 9, the second retaining guide 125 according to the first modified example is a rotating roller that can rotate about a rotation axis along the left-right direction. The rotating roller may be a driven roller that is electrically rotated by a motor (not shown), or it may be a free roller (driven roller) that does not have a driving force. In this case, the first retaining guide 24 included in the yarn processing device 107 has the same configuration as in the above embodiment. Figure 9 shows the state when the first retaining guide 24 is in the first yarn-hanging position and the second retaining guide 125 is in the second yarn-hanging position. With this configuration, the plurality of yarns Y that are hung on the second retaining guide 125, which is a rotating roller, come into contact with the circumferential surface of the rotating roller perpendicular to the circumferential surface of the rotating roller due to the frictional force between the circumferential surface of the rotating roller and each yarn Y. Therefore, the spacing between the multiple threads Y that are placed on the second holding guide 125 is the same as the spacing between the multiple threads Y that are placed on the first holding grooves 24a of the first holding guide 24, which is located upstream of the second holding guide 125 in the thread travel direction. Furthermore, due to the frictional force between the circumferential surface of the rotating roller and each thread Y, even if the spacing between the multiple threads Y that are traveling downstream of the second holding guide 125 in the thread travel direction becomes narrower when the suction gun 80 is used, the spacing between the multiple threads Y that are placed on the second holding guide 125 is maintained without shifting. Thus, the spacing between the multiple threads Y that are placed on the second holding guide 125 becomes the same as the left-right spacing of the multiple first holding grooves 24a, and consequently, the same as the left-right spacing of the multiple first grooves 22a and the multiple second grooves 23a. Therefore, each of the multiple threads Y can be reliably transferred to the corresponding second groove 23a. This makes it possible to perform the threading operation on the thread processing device 107 with greater accuracy.

[0081] In the yarn processing apparatus 107 according to the first modified example described above, the position of the second holding guide 125, which is a rotating roller, is adjusted as appropriate considering the frictional force between the circumferential surface of the rotating roller and the multiple yarns Y. Also, in the first modified example, the timing of attaching the multiple yarns Y to the first holding guide 24 at the first yarn attachment position and the second holding guide 125 at the second yarn attachment position does not necessarily have to be the same. Specifically, the multiple yarns Y may be attached to the first holding guide 24 at the first yarn attachment position first, and then immediately afterward to the second holding guide 125 at the second yarn attachment position.

[0082] (Second variation) In the above embodiment, the yarn processing device 7 is configured to arrange multiple yarns Y in multiple yarn running spaces 31 by transferring multiple yarns Y from the first holding guide 24 to the first restricting guide 22 and transferring multiple yarns Y from the second holding guide 25 to the second restricting guide 23. However, the yarn processing device of the present invention does not necessarily have the first restricting guide 22 and the second restricting guide 23. For example, as shown in Figure 10, the yarn processing device 207 includes a yarn arrangement section 150 having a first holding guide 224 and a second holding guide 225.

[0083] The first retaining guide 224 has a plurality of first retaining grooves (not shown) whose left-right pitch is the same as the left-right pitch of the plurality of thread running spaces 31. The first retaining guide 224 can take on a first thread-hanging position (position in Figure 10) and a first placement completion position (position in Figure 11). The first thread-hanging position is the position where a plurality of threads Y are hung on the first retaining guide 224. As shown in Figure 10, when the first retaining guide 224 is in the first thread-hanging position, it is located upstream of the thread running space 31 in the thread running direction. As shown in Figure 11, when the first retaining guide 224 is in the first placement completion position, it is located upstream of the thread running space 31 in the thread running direction and is in a position where the plurality of threads Y held in the plurality of first retaining grooves can be placed in the plurality of thread running spaces 31. In the second modified example, the first thread-hanging position and the first placement completion position of the first retaining guide 224 are the same position.

[0084] The second retaining guide 225 has a plurality of second retaining grooves (not shown) whose left-right pitch is the same as the left-right pitch of the plurality of thread running spaces 31. The second retaining guide 225 can take on a second thread-hanging position (position in Figure 10) and a second placement completion position (position in Figure 11). The second thread-hanging position is the position where a plurality of threads Y can be hung on the second retaining guide 225. As shown in Figure 10, when the second retaining guide 225 is in the second thread-hanging position, it is located upstream of the thread running space 31 in the thread running direction. As shown in Figure 11, when the second retaining guide 225 is in the second placement completion position, it is located downstream of the thread running space 31 in the thread running direction and is located in a position where the plurality of threads Y held in the plurality of second retaining grooves can be placed in the plurality of thread running spaces 31. In addition, the first retaining guide 224 in the first thread-hanging position and the second retaining guide 225 in the second thread-hanging position are adjacent to each other in the thread running direction.

[0085] The movement of the second holding guide 225 between the second thread-hanging position and the second placement completion position may be performed, for example, by a motor-driven movement mechanism (not shown), or by manual operation by an operator.

[0086] The yarn arrangement section 150 of the second modified example further includes a restricting member 231, a support member 232, and a rotating shaft 233. The restricting member 231 is a member that can be switched between a restricted state and a released state. When the restricting member 231 is in the restricted state, it restricts the arrangement of the multiple yarns Y that are hung on the first holding guide 224 and the second holding guide 225 into the yarn running space 31 (see Figure 10). When the restricting member 231 is in the released state, the restriction is released (see Figure 11). The restricting member 231 is located downstream of the yarn running space 31 in the yarn running direction. The rotating shaft 233 is a rotating shaft along the left-right direction and is formed in the base material 20. The support member 232 has its base end connected to the rotating shaft 233 and its tip end connected to the restricting member 231. In other words, the restricting member 231 is connected to the rotating shaft 233 via the support member 232. The restricting member 231 can be switched between a restricted state and an open state by swinging around the rotation axis 233.

[0087] Next, the procedure for arranging multiple threads Y in the thread running space 31 of the thread processing unit 21 will be described below. Threading onto the first holding guide 224 and the second holding guide 225 is performed, for example, using a suction gun 80. First, as shown in Figure 10, the first holding guide 224 is set as the first threading position, and the second holding guide 225 is set as the second threading position. At this time, the regulating member 231 is in a regulating state. Then, the worker places the multiple threads Y, which have been collected and sucked up by the suction gun 80, into the first holding grooves of the first holding guide 224 and the second holding grooves of the second holding guide 225.

[0088] Next, as shown in Figure 11, the second holding guide 225 is moved to the second placement completion position. While the second holding guide 225 is moving from the second thread-hanging position to the second placement completion position, the regulating member 231 remains in a regulating state. When the second holding guide 225 reaches the second placement completion position, as shown in Figure 11, the regulating member 231 rotates downward in the vertical direction around the rotation axis 233 and becomes released. As a result, the multiple threads Y that were hung on the first holding guide 224 and the second holding guide 225 are placed in the multiple thread-running spaces 31.

[0089] In the second modified example, multiple threads Y with different pitches on the upstream and downstream sides in the thread travel direction are collectively threaded onto the first holding guide 224 at the first thread threading position and the second holding guide 225 at the second thread threading position. Then, the first holding guide 224 is set to the first placement completion position and the second holding guide 225 is set to the second placement completion position. As a result, even without the placement of the first restricting guide 22 and the second restricting guide 23 described above, multiple threads Y with different pitches on the upstream and downstream sides in the thread travel direction can be placed in multiple thread travel spaces 31 that are arranged at a predetermined pitch in the arrangement direction. Therefore, the number of members required to place multiple threads Y in multiple thread travel spaces can be reduced.

[0090] On the other hand, multiple threads Y that are placed on the first holding guide 224 and the second holding guide 225 may be placed in multiple thread running spaces 31 before each holding guide reaches its positioning completion position. However, in this case, since each holding guide is not in its positioning completion position, there is a risk that the multiple threads Y may not be properly placed in their corresponding thread running spaces 31. According to the second modification, it is possible to prevent the multiple threads Y from being placed in the multiple thread running spaces 31 before the first holding guide 224 and the second holding guide 225 reach their positioning completion position. As a result, the multiple threads Y can be properly placed in their corresponding thread running spaces 31.

[0091] In the second modified example described above, the first thread-hanging position and the first completed position of the first retaining guide 224 are the same position, but the first retaining guide 224 may be movable between the first thread-hanging position and the first completed position. In this case, for example, the first retaining guide 224 is movable between the first thread-hanging position downstream of the thread-traveling space 31 in the thread-traveling direction and the first completed position upstream of the thread-traveling space 31 in the thread-traveling direction. In this case, for example, the second thread-hanging position and the second completed position of the second retaining guide 225 are both the same position downstream of the thread-traveling space 31 in the thread-traveling direction. Alternatively, in the second modified example described above, both the first retaining guide 224 and the second retaining guide 225 may be movable.

[0092] Furthermore, in the second modified example described above, the second retaining guide 225 has a configuration having a plurality of second retaining grooves. However, the second retaining guide 225 may also have a configuration without a plurality of second retaining grooves. For example, the second retaining guide 225 may be a rotating roller that can rotate around a rotation axis along the left-right direction, similar to the first modified example described above.

[0093] (Other variations) In the above embodiment, the yarn processing device 7 is a device for applying convergence to a plurality of yarns Y by utilizing the action of compressed air injection. However, the yarn processing device is not limited to this. The yarn processing device also includes other devices in which regulating guides (first regulating guide and second regulating guide) are provided on the upstream and downstream sides of the yarn processing unit in order to perform predetermined processing on a plurality of yarns Y that are running substantially parallel and at substantially equal intervals from each other. For example, the yarn processing device includes a device in which the yarn processing unit has an oil nozzle for applying oil to a plurality of yarns Y and a tension sensor for detecting the tension of a plurality of yarns Y.

[0094] In the above embodiment, the first holding guide 24 is oscillated by the first swing arm 41, and the second holding guide 25 is oscillated by the second swing arm 42. However, the first holding guide 24 and the second holding guide 25 are not limited to swinging types. For example, the first holding guide 24 may be movable between the first thread-holding position and the first retracted position by vertical movement and forward / backward movement. Similarly, the second holding guide 25 may be movable between the second thread-holding position and the second retracted position by vertical movement and forward / backward movement. Specifically, the first holding guide 24 in the first thread-holding position moves upward and then backward to the first retracted position. The second holding guide 25 in the second thread-holding position moves downward and then backward to the second retracted position. The first holding guide 24 may also be movable between the first thread-holding position and the first retracted position by moving diagonally. Similarly, the second holding guide 25 may be movable between the second thread-holding position and the second retracted position by moving in an oblique direction.

[0095] In the above embodiment, the yarn processing device 7 has an interlocking mechanism 30 that links the movement of the first holding guide 24 and the second holding guide 25. However, the yarn processing device 7 does not have to have an interlocking mechanism 30. In this case, the movement of the first holding guide 24 between the first yarn-holding position and the first retracted position, and the movement of the second holding guide 25 between the second yarn-holding position and the second retracted position are performed independently.

[0096] In the above embodiment, threading onto the thread processing device 7 is performed using a suction gun 80. However, threading may also be performed using a hook guide that converges multiple threads Y into one place.

[0097] In the above embodiment, the first retaining guide 24 at the first thread position and the second retaining guide 25 at the second thread position are positioned downstream of the first restricting guide 22 and upstream of the second restricting guide 23 in the thread running direction. However, the first retaining guide 24 at the first thread position and the second retaining guide 25 at the second thread position may also be positioned upstream of the first restricting guide 22 in the thread running direction, or downstream of the second restricting guide 23 in the thread running direction.

[0098] In the above embodiment, the first holding guide 24, which moves from the first thread-holding position toward the first placement completion position, stops when it reaches the first placement completion position. However, the first holding guide 24 may move further beyond the first placement completion position after reaching it. For example, the first holding guide 24 may move beyond the first placement completion position to the rear side of the thread processing unit 21. The same applies to the second holding guide 25. That is, in the above embodiment, the second holding guide 25, which moves from the second thread-holding position toward the second placement completion position, stops when it reaches the second placement completion position. However, the second holding guide 25 may move further beyond the second placement completion position after reaching it. For example, the second holding guide 25 may move beyond the second placement completion position to the rear side of the thread processing unit 21.

[0099] In the above embodiment, the first retaining groove 24a may be formed around the entire circumference of the first retaining guide 24, or it may be formed only on a part of the circumferential surface of the first retaining guide 24. However, the first retaining groove 24a is configured such that each thread Y does not come out of the first retaining groove 24a while the first retaining guide 24 is moving from the first thread-holding position to the first retracted position. Similarly, the second retaining groove 25a may be formed around the entire circumference of the second retaining guide 25, or it may be formed only on a part of the circumferential surface of the second retaining guide 25. However, the second retaining groove 25a is configured such that each thread Y does not come out of the second retaining groove 25a while the second retaining guide 25 is moving from the second thread-holding position to the second retracted position.

[0100] In the above embodiment, the yarn processing device 7 is located below the plurality of guide guides 6 and above the godet roller 11 in the spinning production equipment 1. However, the location in which the yarn processing device 7 is located is not limited to this. When yarn threading is performed using a suction gun 80 or the like, resulting in different spacing between multiple yarns on the upstream and downstream sides in the yarn running direction, the configuration of the present invention can be effective when attempting to thread yarn Y onto two regulating guides (first regulating guide and second regulating guide) having multiple grooves (first groove and second groove) spaced apart in the yarn running direction and having the same spacing between them in the arrangement direction.

[0101] In the above embodiment, multiple threads Y converging toward the suction gun 80, which serves as the convergence section, are arranged in multiple thread running spaces 31 formed in the thread processing section 21. That is, the pitch of the multiple threads Y in the direction of arrangement is such that the upstream pitch in the thread running direction is wider than the downstream pitch. However, the pitch of the multiple threads Y arranged in the multiple thread running spaces 31 in the direction of arrangement may be such that the upstream pitch in the thread running direction is narrower than the downstream pitch. [Explanation of symbols]

[0102] 7. Thread processing device 21 Thread Processing 22. Section 1: Regulatory Guide 22a 1st groove 23. Second Regulatory Guide 23a Second groove 24. First Holding Guide 24a 1st retaining groove 25. Second Holding Guide 25a 2nd retaining groove 30 Interlocking mechanism 31 Thread running space 41 First oscillating arm 42 Second oscillating arm 50 Thread arrangement section 51 First pivot axis 52 Second pivot axis 53 First Gear 54. Second gear 80 Suction Gun 125 Second Holding Guide 224 First Holding Guide 225 Second Holding Guide 231 Regulating member Y thread

Claims

1. a yarn processing section that forms a plurality of yarn traveling spaces that extend along a yarn traveling direction and are arranged at a predetermined pitch in an arrangement direction that intersects with the yarn traveling direction, and that applies a predetermined treatment to a plurality of yarns traveling in the plurality of yarn traveling spaces; a yarn placing section for placing a plurality of yarns in the plurality of yarn traveling spaces, The yarn placement section includes: A first holding portion having a plurality of first holding grooves aligned in the arrangement direction; a second holding portion that is disposed downstream of the first holding portion in the yarn running direction and holds the plurality of yarns while maintaining the pitch of the plurality of yarns held in the plurality of first holding grooves, the first holding portion is capable of taking a first threading position where a plurality of yarns are threaded on the first holding portion, and a first arrangement completion position which is a position upstream of the yarn traveling space in the yarn traveling direction and where arrangement of the plurality of yarns in the plurality of yarn traveling spaces is completed, the second holding portion is capable of taking a second threading position where a plurality of yarns are threaded on the second holding portion, and a second arrangement completion position which is a position downstream of the yarn traveling space in the yarn traveling direction and where arrangement of the plurality of yarns in the plurality of yarn traveling spaces is completed, The yarn processing device, characterized in that the first holding portion at the first threading position and the second holding portion at the second threading position are adjacent to each other in the yarn traveling direction.

2. a first regulating guide having a plurality of first groove portions having the same pitch in the arrangement direction as the plurality of first holding grooves, the first regulating guide being disposed upstream of the yarn traveling space in the yarn traveling direction and at a position where the plurality of yarns hooked on the plurality of first groove portions can be disposed in the plurality of yarn traveling spaces; a second regulating guide having a plurality of second groove portions having the same pitch in the arrangement direction as the plurality of first groove portions, the second regulating guide being disposed downstream of the yarn traveling space in the yarn traveling direction and at a position where the plurality of yarns hooked on the plurality of second groove portions can be arranged in the plurality of yarn traveling spaces, the first arrangement completion position is a position where the first holding portion is retracted from a yarn path when a plurality of yarns are hung on the first restriction guide and the second restriction guide, the second arrangement completion position is a position where the second holding portion is retracted from a yarn path when a plurality of yarns are hung on the first restriction guide and the second restriction guide, the first holding portion transfers the plurality of yarns to the first regulating guide during movement from the first yarn hooking position to the first arrangement completion position; The yarn processing device according to claim 1 , wherein the second holding section transfers the plurality of yarns to the second restriction guide during the movement from the second yarn hooking position to the second arrangement completion position.

3. The yarn processing device according to claim 2 , wherein the second holding portion has a plurality of second holding grooves that are arranged at the same pitch in the arrangement direction as the plurality of second groove portions.

4. The yarn processing device according to claim 2 , wherein the second holding portion is a rotary roller that is rotatable about a rotation axis aligned along the arrangement direction.

5. The yarn processing device according to any one of claims 2 to 4, characterized in that the yarn placement section has an interlocking mechanism that interlocks the movement of the first holding section between the first threading position and the first placement completion position with the movement of the second holding section between the second threading position and the second placement completion position.

6. The interlocking mechanism includes: a first swing arm that is rotatable about a first swing axis along the arrangement direction and swingably supports the first holding portion; a second swing arm that is rotatable about a second swing axis along the arrangement direction and swingably supports the second holding portion, the first swing arm includes a first gear; the second swing arm includes a second gear; 6. The yarn processing device according to claim 5, wherein the interlocking mechanism interlocks the movement of the first holding part and the movement of the second holding part by rotating the first swing arm and the second swing arm in conjunction with each other through meshing between the first gear and the second gear.

7. the first yarn hooking position is a position where, when viewed from the arrangement direction, the first holding portion is deviated from a yarn path when a plurality of yarns are hooked on the first regulating guide and the second regulating guide, in an opening direction of the first groove portion, The yarn processing device according to any one of claims 2 to 4, characterized in that, when viewed from the arrangement direction, the second threading position is a position where the second holding portion is deviated from a yarn path when multiple yarns are threaded on the first regulating guide and the second regulating guide, in a direction in which the second groove portion opens.

8. The first threading position is a position where, when viewed from the arrangement direction, the first holding portion deviates from a thread path when multiple threads are hung on the first regulating guide and the second regulating guide, in a direction in which the first groove portion opens, 6. The yarn processing device according to claim 5, wherein the second threading position is a position where, when viewed from the arrangement direction, the second holding portion is deviated from a yarn path when a plurality of yarns are threaded around the first regulating guide and the second regulating guide, in a direction in which the second groove portion opens.

9. The first threading position is a position where, when viewed from the arrangement direction, the first holding portion deviates from a thread path when a plurality of threads are hung on the first regulating guide and the second regulating guide in a direction in which the first groove portion opens, 7. The yarn processing device according to claim 6, wherein the second threading position is a position where, when viewed from the arrangement direction, the second holding portion is deviated from a yarn path when a plurality of yarns are threaded around the first regulating guide and the second regulating guide, in a direction in which the second groove portion opens.

10. 8. The yarn processing device according to claim 7, wherein the first restriction guide is disposed at a position that does not overlap with yarn paths of the plurality of yarns hooked on the first holding portion at the first yarn hooking position when viewed from the arrangement direction.

11. A yarn processing device as described in claim 8, characterized in that the first regulating guide is arranged in a position that does not overlap with the yarn paths of the multiple yarns hung on the first holding portion at the first yarn hanging position when viewed from the arrangement direction.

12. A yarn processing device as described in Claim 9, characterized in that the first regulating guide is arranged in a position that does not overlap with the yarn paths of the multiple yarns hung on the first holding portion at the first yarn hanging position when viewed from the arrangement direction.

13. when the first holding portion is in the first arrangement completion position, the first holding portion is located upstream of the yarn traveling space in the yarn traveling direction and is located at a position where the plurality of yarns held in the plurality of first holding grooves can be arranged in the plurality of yarn traveling spaces, 2. The yarn processing device according to claim 1, wherein, when the second holding portion is in the second arrangement completion position, the second holding portion is located downstream of the yarn traveling space in the yarn traveling direction and at a position where the plurality of yarns held by the second holding portion can be arranged in the plurality of yarn traveling spaces.

14. The yarn placing section further includes a regulating member switchable between a regulating state in which the yarns hung on the first holding section and the second holding section are regulated from being placed in the yarn traveling space and a released state in which the regulating state is released, The regulating member is The first holding portion is in the restricted state while it is moving from the first threading position to the first arrangement completion position, and the second holding portion is in the restricted state while it is moving from the second threading position to the second arrangement completion position, The yarn processing device according to claim 13, characterized in that the yarn processing device assumes the released state when the first holding portion reaches the first position and the second holding portion reaches the second position.

15. The yarn processing device according to claim 13 or 14, wherein the second holding portion has a plurality of second holding grooves that are arranged at the same pitch in the arrangement direction as the plurality of first holding grooves.

16. The yarn processing device according to claim 13 or 14, wherein the second holding portion is a rotating roller that is rotatable about a rotation axis aligned along the arrangement direction.

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