Yarn processor

Abstract

To facilitate a yarn hanging work with respect to two restricting guides disposed in a yarn running direction on an upstream side and on a downstream side of a yarn processing section of a yarn processor.SOLUTION: A yarn processor 7 includes a yarn processing section 21, a first restricting guide 22, a second restricting guide 23, a first yarn holding member 24 and a second yarn holding member 25. The first yarn holding member 24 has plural first holding grooves 24a, and is movable between a yarn hanging position and a delivery completion position. The second yarn holding member 25 includes plural second holding grooves 25a and is movable between a yarn hanging position and a delivery completion position. The first yarn holding member 24 in the yarn hanging position and the second yarn hanging member 25 in the yarn hanging position are adjacent to each other in a yarn running direction. Viewed from a horizontal direction, an angle x is acute, the angle being made by a first depth direction D1 which is a depth direction of the first holding grooves 24a of the first yarn holding member 24 in the yarn hanging position and a second depth direction D2 which is a dept direction of the second holding grooves 25a of the second yarn holding member 25 in the yarn hanging position.SELECTED DRAWING: Figure 5

Description

[Technical field]

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

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

[0003] In such spinning production equipment, a yarn processing device having a yarn processing unit such as a migration nozzle may be arranged on the yarn path between the spinning device and the yarn feed roller. The migration nozzle is a device that uses the action of compressed air injection to impart convergence to yarns. The migration nozzle has a configuration similar to that of the intertwining unit of the intertwining device described in Patent Document 2, for example, and performs a process of imparting convergence to multiple yarns running approximately parallel to each other and at approximately equal pitches. On the upstream side and downstream side of the migration nozzle in the yarn running direction, there are provided restriction guides for restricting the multiple yarns so that the multiple yarns are approximately parallel to each other and at approximately equal pitches in the migration nozzle. In each restriction guide, multiple grooves are formed at the same pitch as the pitch of the multiple yarns in the migration nozzle. By hanging multiple yarns in the multiple grooves formed in each restriction guide, it becomes possible for the multiple yarns to run approximately parallel to each other and at approximately equal pitches in the migration nozzle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-057148 A [Patent Document 2] JP 2019-105007 A Summary of the Invention [Problem to be solved by the invention]

[0005] Here, when multiple yarns spun from the spinning device are hung on two regulating guides arranged on the upstream and downstream sides of the migration nozzle, a suction gun is used to suck up the multiple yarns together. The multiple yarns spun from the spinning device converge at the suction port of the suction gun, and the pitch of the multiple yarns narrows from the upstream side to the downstream side in the yarn running direction. For this reason, the yarns are hung on the two regulating guides while the position of the suction gun is adjusted by an operator so that the pitch of the multiple yarns matches the pitch of the grooves of each regulating guide. However, when the yarns are hung on the two regulating guides of the yarn processing device by the suction gun, the following problems arise.

[0006] As described above, the pitch of the multiple yarns sucked together by the suction gun is different between the upstream side and the downstream side in the yarn running direction. On the other hand, multiple grooves are formed at the same pitch in two regulating guides that are separated in the yarn running direction. Therefore, even if the position of the suction gun is adjusted so that the groove pitch of one regulating guide matches the pitch of the multiple yarns, the groove pitch of the other regulating guide does not match the pitch of the multiple yarns, and the yarn is unintentionally hung in a groove of the other regulating guide where it should not be hung. For this reason, when threading work is currently performed on two regulating guides using a suction gun, an operator needs to thread the yarn one by one into the multiple grooves of each regulating guide, which causes a problem that threading takes a lot of time.

[0007] The above-mentioned problem can occur not only in a yarn processing device having a migration nozzle as a yarn processing section, but also in a yarn processing device such as the following, in which a similar yarn holding member is provided: In other words, the same problem can occur in other devices (such as an oil nozzle that applies oil to multiple yarns or a tension sensor that detects the tension of multiple yarns) in which regulating guides are provided upstream and downstream of the yarn processing section to perform a predetermined process in the yarn processing section on multiple yarns that run approximately parallel to each other and at approximately equal pitches.

[0008] An object of the present invention is to facilitate a yarn threading operation on two regulating guides arranged upstream and downstream of a yarn processing unit of a yarn processing device in the yarn running direction. [Means for solving the problem]

[0009] The yarn processing device of the present invention includes a yarn processing unit for performing a predetermined process on a plurality of yarns running in a state where the plurality of yarns are lined up in an arrangement direction intersecting a yarn running direction in which the plurality of yarns run; a first regulating guide having a plurality of first grooves lined up in the arrangement direction and arranged upstream of the yarn processing unit in the yarn running direction; a second regulating guide having a plurality of second grooves having the same pitch in the arrangement direction as the plurality of first grooves and arranged downstream of the yarn processing unit in the yarn running direction; a first yarn holding member having a plurality of first holding grooves having the same pitch in the arrangement direction as the plurality of first grooves and capable of holding a plurality of yarns hung on the first regulating guide; and a second yarn holding member having a plurality of second holding grooves having the same pitch in the arrangement direction as the plurality of second grooves and capable of holding a plurality of yarns hung on the second regulating guide, The material is movable between a threading position where the multiple threads are hung in the multiple first holding grooves and a transfer completion position where the transfer of the multiple threads to the first regulating guide is completed, and the second thread holding member is movable between the threading position where the multiple threads are hung in the multiple second holding grooves and a transfer completion position where the transfer of the multiple threads to the second regulating guide is completed, and the first thread holding member at the threading position and the second thread holding member at the threading position are adjacent to each other in the yarn running direction, and when viewed from the arrangement direction, an angle formed by a first depth direction which is the depth direction of the first holding grooves of the first thread holding member at the threading position and a second depth direction which is the depth direction of the second holding grooves of the second thread holding member at the threading position is an acute angle.

[0010] In the present invention, when threading the first and second restrictive guides, the multiple threads are temporarily held by the first and second thread holding members at the threading position. The first and second thread holding members at the threading position are adjacent to each other in the yarn running direction, so that the multiple threads can be easily threaded together. The first and second thread holding members holding the multiple threads are then moved to the transfer completion position, so that the multiple threads can be threaded on the first and second restrictive guides. This makes it possible to easily thread the multiple threads on the first restrictive guide arranged upstream of the yarn processing unit and the second restrictive guide arranged downstream of the yarn processing unit in the yarn running direction, even if the yarn processing device is arranged in an area where the pitch of the multiple threads narrows from the upstream side to the downstream side in the yarn running direction.

[0011] Incidentally, when multiple threads are to be threaded on the thread holding member as described above, it is ideal for the worker to perform the threading work while looking at the thread holding member as if peering into the bottom of the holding groove of each thread holding member, i.e., while looking at the thread holding member from the depth direction of each holding groove. This is for the following reasons. That is, the pitch of the multiple threads narrows toward the suction port of the suction gun, in other words, the pitch differs depending on the position in the thread running direction. In that case, if the pitch of the multiple threads and the pitch of the holding groove of each thread holding member are not aligned at the same position in the thread running direction, the pitches may be misaligned, and threading may fail. For this reason, if it is attempted to accurately match the pitch of the threads and the pitch of the holding groove at the same position in the thread running direction, it is desirable for the worker to perform threading while looking at the thread holding member as if peering into the bottom of the holding groove. However, if the worker looks at each thread holding member as if peering into the bottom of the holding groove, the visibility of the multiple holding grooves formed in the thread holding member will be reduced. Specifically, when an operator looks at the thread holding member, the bottom of the holding groove and the non-grooved part are aligned in a substantially straight line, making it difficult to distinguish between the grooved and non-grooved parts of the holding groove. As a result, it takes a long time to thread the thread on each thread holding member, which in turn takes a long time to thread the thread on the two regulating guides.

[0012] According to the present invention, when viewed from the arrangement direction, the angle between the first depth direction, which is the depth direction of the first holding groove of the first thread holding member at the threading position, and the second depth direction, which is the depth direction of the second holding groove of the second thread holding member at the threading position, is an acute angle. Therefore, even if an operator peers into the bottom of the holding groove of one of the thread holding members at the threading position in order to match the pitch of the multiple threads collectively sucked into the suction gun with the pitch of the holding groove, the operator will see the other thread holding member at the threading position from a direction intersecting the depth direction of the holding groove. In other words, when the operator looks at the two thread holding members at the threading position, the bottom part of the holding groove and the part that is not a groove are not aligned in substantially the same line for the other thread holding member, making it easier to distinguish between the part that is a groove and the part that is not a groove. In the present invention, since the two yarn holding members at the yarn hooking position are adjacent to each other in the yarn running direction, an operator can easily hook multiple yarns into the holding grooves of the two yarn holding members using the pitch of the holding grooves of the other yarn holding member, which is easier to distinguish between the grooved portions, as a reference, thereby facilitating the operation of threading the yarn onto the two thread holding members. This makes it easier to thread the yarn onto the two regulating guides located upstream and downstream of the yarn processing unit of the yarn processing device in the yarn running direction.

[0013] In the yarn processing device of the present invention, it is preferable that, in the first depth direction, the tip of the second yarn holding member at the yarn hooking position is closer to the opening side of the first holding groove than the tip of the first yarn holding member at the yarn hooking position, or, in the second depth direction, the tip of the first yarn holding member at the yarn hooking position is closer to the opening side of the second holding groove than the tip of the second yarn holding member at the yarn hooking position.

[0014] When performing threading work, if an operator looks at two thread holding members at the threading position and both thread holding members are in the field of view, it is difficult to determine the line of sight. In other words, even if the operator focuses on one thread holding member, the other thread holding member is in the field of view, and the operator's line of sight tends to shift. This makes it difficult to thread the thread holding members. According to the present invention, the operator can see the two thread holding members at the threading position with one thread holding member hiding part or all of the other thread holding member behind it. Therefore, even if the operator focuses on one thread holding member, the other thread holding member can be excluded part or all of the other thread holding member from the field of view, and the operator's line of sight can be prevented from shifting. This makes it even easier to thread the two thread holding members.

[0015] In the yarn processing device of the present invention, it is preferable that an angle between the first depth direction and the second depth direction is 15 degrees or more when viewed from the arrangement direction.

[0016] If the angle between the first depth direction and the second depth direction when viewed from the arrangement direction is too small, there is a limit to improving the visibility of the pitch of the holding grooves of each thread holding member at the threading position. According to the present invention, the angle between the first depth direction and the second depth direction when viewed from the arrangement direction is 15 degrees or more. Therefore, when looking into the bottom of the holding groove of one thread holding member at the threading position, the bottom part of the holding groove of the other thread holding member at the threading position and the part that is not a groove can be clearly distinguished. This makes it even easier to thread the two thread holding members.

[0017] In the yarn processing device of the present invention, it is preferable that the first yarn holding member and the second yarn holding member are plate-shaped members.

[0018] According to the present invention, by reducing the thickness of the first thread holding member and the second thread holding member made of a plate-like member, the first thread holding member and the second thread holding member at the threading position can be brought closer to each other in the thread running direction, which makes it easier to collectively hang multiple threads on the multiple holding grooves of each thread holding member.

[0019] It is preferable that the yarn processing device of the present invention has a linkage mechanism that links the movement of the first yarn holding member between the yarn threading position and the transfer completion position with the movement of the second yarn holding member between the yarn threading position and the transfer completion position.

[0020] If the yarn is first handed over from one of the thread holding members to the regulating guide, there is a risk that the yarn may float and come off from one of the regulating guides to which the yarn has already been handed over, as the yarn is then handed over from the other thread holding member to the regulating guide. According to the present invention, the yarn can be handed over from the first thread holding member to the first regulating guide and from the second thread holding member to the second regulating guide at the same time. This makes it possible to more reliably thread the yarn on the two regulating guides.

[0021] In the yarn processing device of the present invention, it is preferable that the interlocking mechanism has a first swing arm that is rotatable around a first swing axis along the arrangement direction and swingably supports the first thread holding member, and a second swing arm that is rotatable around a second swing axis along the arrangement direction and swingably supports the second thread holding member, the first swing arm including a first gear and the second swing arm including a second gear, and the interlocking mechanism interlocks the movement of the first thread holding member with the movement of the second thread holding member 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.

[0022] According to the present invention, the first swing arm and the second swing arm rotate in conjunction with each other due to the meshing of the first gear and the second gear, so that the first thread holding member and the second thread holding member can be swung in conjunction with each other. Therefore, a complicated configuration and control are not required to move the first thread holding member and the second thread holding member in conjunction with each other.

[0023] In the yarn processing device of the present invention, it is preferable that the yarn hooking position of the first yarn holding member, when viewed from the arrangement direction, is a position where the first yarn holding member deviates from the yarn path when multiple yarns are hooked on the first regulating guide and the second regulating guide, in the opening direction of the first groove, and the yarn hooking position of the second yarn holding member, when viewed from the arrangement direction, is a position where the second yarn holding member deviates from the yarn path when multiple yarns are hooked on the first regulating guide and the second regulating guide, in the opening direction of the second groove.

[0024] According to the present invention, when multiple threads are hooked on the first thread holding member and the second thread holding member at the threading position, it is possible to prevent the thread from being unintentionally hooked on a groove in which the thread should not be hooked among the multiple first grooves of the first regulating guide and the multiple second grooves of the second regulating guide. By moving the first thread holding member to the transfer completion position in a state in which the thread is held by the first thread holding member and the thread is not hooked on the first regulating guide, the thread can be hooked more reliably on the first groove in which the thread should be hooked among the multiple first grooves. Similarly, by moving the second thread holding member to the transfer completion position in a state in which the thread is held by the second thread holding member and the thread is not hooked on the second regulating guide, the thread can be hooked more reliably on the second groove in which the thread should be hooked among the multiple second grooves.

[0025] In the yarn processing device of the present invention, it is preferable that, when viewed from the arrangement direction, the first regulating guide is arranged at a position outside the yarn paths of the multiple yarns hooked on the first yarn holding member at the yarn hooking position.

[0026] According to the present invention, when a yarn is hooked onto the first yarn holding member at the yarn hooking position, it is possible to further prevent the yarn from being unintentionally hooked onto a first groove among the multiple first grooves of the first restricting guide in which the yarn should not be hooked. [Brief description of the drawings]

[0027] [Figure 1]FIG. 1 is a schematic diagram of a spinning production facility. [Diagram 2] 1 is a front view of the thread processing device when the first thread holding member is in the threading position and the second thread holding member is in the threading position. FIG. [Diagram 3] 1 is a front view of the thread processing device when the first thread holding member is in the transfer completion position and the second thread holding member is in the transfer completion position. FIG. [Figure 4] 4 is a cross-sectional view of a part of the thread processing section, taken along a line parallel to the left-right and front-rear directions. FIG. [Diagram 5] 1 is a right side view of the yarn processing device when the first yarn holding member is in the yarn hooking position and the second yarn holding member is in the yarn hooking position. FIG. [Figure 6] 13 is a right side view of the yarn processing device when the first yarn holding member is in the transfer completion position and the second yarn holding member is in the transfer completion position. FIG. [Figure 7] 1 is a left side view of the yarn processing device when the first yarn holding member is in the yarn hooking position and the second yarn holding member is in the yarn hooking position. FIG. [Figure 8] 1 is a left side view of the yarn processing device when the first yarn holding member is in the transfer completion position and the second yarn holding member is in the transfer completion position. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0029] (Overall configuration of spinning production equipment 1) A preferred embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a diagram showing a schematic configuration of a spinning production facility 1. Hereinafter, the up-down direction on the paper surface of Fig. 1 will be referred to as the up-down direction, and the left-right direction on the paper surface will be referred to as the left-right direction. In addition, the direction perpendicular to the paper surface of Fig. 1 will be referred to as the front-rear direction, and the front side of the paper surface will be referred to as the front. Hereinafter, the above directional terms will be used appropriately in the description.

[0030] The spinning production equipment 1 is configured to wind up a plurality of yarns Y spun from a spinning device 2 with a winding device 4. The spinning device 2 is a device that spins molten polymer downward as the yarns Y. As shown in FIG. 1, the spinning production equipment 1 includes a plurality of oil guides 5 each equipped with an oil nozzle, a plurality of 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 plurality of oil guides 5 and the plurality of guides 6 arranged 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).

[0031] The multiple oil guides 5 are disposed below the spinning device 2 and apply oil to each of the multiple yarns Y spun downward from the spinning device 2. The multiple guides 6 are disposed at equal intervals in the left-right direction below the multiple oil guides 5, respectively, and individually guide the multiple yarns Y to which the oil has been applied.

[0032] The yarn processing device 7 is disposed below the plurality of guides 6, and is a device for providing bundleability to the plurality of yarns Y individually guided by the plurality of guides 6 by using the action of compressed air injection. The yarn processing device 7 has a first restricting guide 22 and a second restricting guide 23 (see FIG. 2). The plurality of yarns Y hung on the first restricting guide 22 and the second restricting guide 23 run substantially parallel to each other and at substantially equal intervals in the left-right direction. The yarn processing device 7 will be described in detail later.

[0033] As shown in Fig. 1, the godet rollers 11 and 12 are disposed downstream of the yarn processing device 7 in the yarn running direction, and are rotated by a motor (not shown). A plurality of yarns Y spun from the spinning device 2 are wound around the godet roller 11 via the oil guide 5, the guide 6, and the yarn processing device 7, and are sent to the spinning and drawing device 3 by the godet roller 11. A plurality of yarns Y heated and drawn by the spinning and drawing device 3 are wound around the godet roller 12, and are sent to the winding device 4 by the godet roller 12. Note that, in reality, an intertwining device and another godet roller are disposed downstream of the godet roller 12 and upstream of the winding device 4 in the yarn running direction, but are not shown in Fig. 1.

[0034] The spinning and drawing device 3 is a device for heating and drawing a plurality of yarns Y, and is disposed below the spinning device 2. The spinning and drawing device 3 has an insulation box 60 and five godet rollers 91-95 housed inside the insulation box 60. A yarn inlet 60a for introducing the plurality of yarns Y into the insulation box 60 is formed at the lower part of the right side surface of the insulation box 60, and a yarn outlet 60b for leading the plurality of yarns Y out of the insulation box 60 is formed at the upper part of the right side surface of the insulation box 60.

[0035] The three lower godet rollers 91-93 are preheating rollers for preheating the multiple yarns Y before drawing, and the two upper godet rollers 94, 95 are tempering rollers for thermally setting the multiple yarns Y that have been drawn. The roller surface temperatures of the two upper godet rollers 94, 95 are set to be higher than the roller surface temperatures of the three lower godet rollers 91-93. In addition, the yarn feed speed of the two upper godet rollers 94, 95 is faster than that of the three lower godet rollers 91-93.

[0036] The yarns Y introduced into the heat-insulating box 60 through the yarn inlet 60a are first preheated to a temperature at which they can be drawn while being fed by the godet rollers 91 to 93. The preheated yarns Y are drawn by the difference in yarn feed speed between the godet roller 93 and the godet roller 94. The yarns Y are further heated to a high temperature while being fed by the godet rollers 94 and 95, and the drawn state is heat-set. The yarns Y drawn in this manner are drawn out of the heat-insulating box 60 through the yarn outlet 60b.

[0037] The winding device 4 is a device that winds up multiple yarns Y, and is disposed below the spinning and drawing device 3. The winding device 4 includes a bobbin holder 13 and a contact roller 14. The bobbin holder 13 has a cylindrical shape extending in the front-rear direction, and is rotated by a motor (not shown). A plurality of bobbins B are attached to the bobbin holder 13 in a state of being arranged in the axial direction. The winding device 4 rotates the bobbin holder 13 to simultaneously wind multiple yarns Y around the multiple bobbins B, thereby producing multiple packages P. The contact roller 14 comes into contact with the surfaces of the multiple packages P to apply a predetermined contact pressure, and adjusts the shape of the packages P.

[0038] (Yarn processing device 7) Next, the yarn processing device 7 will be described in detail with reference to Figs. 2 to 8. Note that in Figs. 2 and 3, some of the multiple yarns Y are omitted for ease of explanation. Also, in Figs. 7 and 8, the yarn Y is omitted for ease of explanation. The yarn processing device 7 includes a base material 20, a yarn processing section 21, a first regulating guide 22, a second regulating guide 23, a first yarn holding member 24, a second yarn holding member 25, and an interlocking mechanism 30 (see Fig. 7). The yarn processing device 7 is disposed, for example, in a position slightly above the line of sight of an operator who is going to hang the yarn Y on the yarn processing device 7 in the vertical direction. A position slightly above the eye level of the worker is, for example, a position just under 2 m above the floor level of the lower floor.

[0039] The base material 20 is a member having a substantially rectangular parallelepiped shape. The yarn processing section 21 is for performing a predetermined process on the multiple yarns Y that run in a state lined up in the arrangement direction (the left-right direction in FIG. 2). Specifically, the yarn processing section 21 is a device that uses the action of compressed air injection to impart convergence to the multiple yarns Y. As shown in FIG. 3 and FIG. 4, the yarn processing section 21 is formed by arranging multiple intertwining pieces 26 in the left-right direction on the front surface in the front-rear direction of the base material 20. Note that the intertwining pieces 26 are omitted in FIG. 2. Also, as shown in FIG. 1, the yarn processing section 21 is disposed below the multiple guides 6 and above the godet roller 11.

[0040] As shown in Fig. 4, the yarn processing section 21 has a plurality of yarn traveling spaces 31, a plurality of yarn introduction paths 32, and a plurality of jetting flow paths 33. The plurality of yarn traveling spaces 31 extend along the yarn traveling direction and are arranged at a substantially equal pitch in an arrangement direction (left-right direction in Fig. 4) that intersects with the yarn traveling direction. The pitch of the yarn traveling spaces 31 is the distance between the centers of adjacent yarn traveling spaces 31. The plurality of yarn traveling spaces 31 are formed one by one in each intertwining piece 26. The yarn traveling space 31 is formed in a substantially elliptical shape with the left-right direction as viewed from the yarn traveling direction as the longitudinal direction. In the yarn traveling direction, it extends over the entire length of the intertwining piece 26 and is open at both ends.

[0041] The multiple yarn introduction paths 32 are paths provided individually for the multiple yarn traveling spaces 31, for introducing the yarn Y into the yarn traveling spaces 31. The yarn introduction path 32 extends over the entire length of the interlacing piece 26 in the yarn traveling direction, and both ends are open. The yarn introduction path 32 also has a first yarn path 36, a second yarn path 37, and a third yarn path 38.

[0042] The first yarn path 36 is a gap formed between two adjacent interlacing pieces 26, and extends in the front-to-rear direction in approximately the front half of the interlacing piece 26, with its front end in the front-to-rear direction serving as an insertion port 36a for the yarn Y.

[0043] The second thread route 37 is connected to the rear end of the first thread route 36 in the front-rear direction, and extends to the right from the connection with the first thread route 36. The third thread route 38 is connected to the right end of the second thread route 37, and extends to the front in the front-rear direction from the connection with the second thread route 37. The front end of the third thread route 38 in the front-rear direction is connected to the yarn traveling space 31.

[0044] As shown in FIG. 4, the front surface of the interlacing piece 26 is inclined in the left-right direction so that the left end is located behind the center. In this embodiment, the center of the front surface of the interlacing piece 26 is slightly to the right of the actual center. The front surface of the interlacing piece 26 is inclined in the right-left direction so that the right end is located behind the center. Therefore, the inclined surfaces 26a and 26b are located on both sides of the first yarn path 36 in the left-right direction. As a result, the yarns Y that run approximately parallel to each other by being hung on the first and second regulating guides 22 and 23 described later are guided by the inclined surfaces 26a and 26b and inserted into the first yarn path 36.

[0045] The multiple jet flow paths 33 are provided for the multiple yarn traveling spaces 31 individually. The jet flow paths 33 are formed in each interlacing piece 26, extend in the front-rear direction, and have a tip (front end) serving as an jet port 33a that opens on a rear wall surface in the front-rear direction of a connection portion between the second yarn path 37 and the third yarn path 38. As a result, the jet port 33a faces the yarn traveling space 31 in the front-rear direction via the third yarn path 38. The rear end of the jet flow path 33 is connected to the fluid supply source 40 via a fluid supply flow path 43. The fluid supply flow path 43 is provided with a valve 39. When the valve 39 is opened, a fluid such as air supplied from the fluid supply source 40 is supplied to the jet flow path 33 via the fluid supply flow path 43 and is jetted from the jet port 33a of the jet flow path 33 into the yarn traveling space 31. As a result, a swirling flow is generated in the yarn traveling space 31, and the filaments that form the yarn Y traveling in the yarn traveling space 31 are given focusing properties.

[0046] As shown in FIG. 2, FIG. 5, etc., the first restricting guide 22 is disposed 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 FIG. 2, the first restricting 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 side in the front-rear direction. Note that the direction toward the front side in the front-rear direction corresponds to the opening direction of the first grooves 22a of the present invention. Also, as shown in FIG. 5, the first restricting guide 22 is disposed at a position deviated from the yarn path of the plurality of yarns Y hung on a first yarn holding member 24 (described later) at the first yarn hanging position when viewed from the left-right direction. In other words, the first restriction guide 22 is disposed at a position rearward in the front-rear direction of the yarn paths of the multiple yarns Y hooked on the first yarn holding member 24 at the first yarn hooking position.

[0047] As shown in Figs. 2, 5, etc., the second restriction guide 23 is disposed 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 Fig. 2, the second restriction 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 side in the front-rear direction. The direction toward the front side in the front-rear direction corresponds to the opening direction of the second grooves 23a of the present invention.

[0048] The first grooves 22a and the second grooves 23a are substantially in the same position in the left-right direction. The yarn Y traveling in the yarn traveling direction is passed between adjacent first grooves 22a and between adjacent second grooves 23a, so that the movement of the yarn Y in the left-right direction is restricted, and the yarn path is defined. The first and second restricting guides 22 and 23a support the yarn Y when the yarn Y is bundled in the yarn processing section 21. Note that "the first grooves 22a and the second grooves 23a are substantially in the same position in the left-right direction" includes cases where the first grooves 22a and the second grooves 23a are exactly in the same position in the left-right direction and cases where they are slightly shifted from each other.

[0049] The first thread holding member 24 can hold a plurality of threads Y hung on the first restricting guide 22. The first thread holding member 24 is a plate-shaped member extending in the left-right direction. The first thread holding member 24 has a plurality of first holding grooves 24a whose pitch in the left-right direction is the same as the pitch in the left-right direction of the plurality of 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 plurality of threads Y hung on the first holding grooves 24a in the left-right direction is restricted. The positions of the plurality of first grooves 22a and the plurality of first holding grooves 24a in the left-right direction are approximately the same. The first thread holding member 24 can move between a threading position (see FIGS. 2 and 5) where the plurality of threads Y are hung on the plurality of first holding grooves 24a and a transfer completion position (see FIGS. 3 and 6) where transfer of the plurality of threads Y to the first restricting guide 22 is completed. The yarn path when the multiple yarns Y are hung on the first restriction guide 22 and the second restriction guide 23 is the yarn path of the yarn Y shown in Fig. 6. Note that "the multiple first grooves 22a and the multiple first holding grooves 24a are positioned substantially the same in the left-right direction" includes a case where the multiple first grooves 22a and the multiple first holding grooves 24a are positioned exactly the same in the left-right direction and a case where they are slightly misaligned.

[0050] As shown in Figs. 2 and 5, when the first thread holding member 24 is in the threading position, it is located downstream of the first restriction 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 Fig. 5, when the first thread holding member 24 is in the threading position, it is deviated forward in the front-rear direction from the yarn path when the multiple threads Y are hung on the first restriction guide 22 and the second restriction guide 23 when viewed from the left-right direction. That is, the threading position of the first thread holding member 24 is a position where the first thread holding member 24 is deviated in the opening direction of the first groove 22a from the yarn path when the multiple threads Y are hung on the first restriction guide 22 and the second restriction guide 23 when viewed from the left-right direction. Furthermore, as shown in Figs. 3 and 6, when the first thread holding member 24 is in the transfer completion position, it is located upstream of the first restriction guide 22 in the thread running direction and in the rear of the first restriction guide 22 in the front-rear direction. Supplementally, the transfer completion position of the first yarn holding member 24 is a position where the first yarn holding member 24 retreats from the yarn path when the multiple yarns Y are hooked on the first restriction guide 22 and the second restriction guide 23. The first yarn holding member 24 transfers each of the multiple yarns Y to the corresponding multiple first grooves 22a while moving from the yarn hooking position to the transfer completion position.

[0051] The second thread holding member 25 can hold multiple threads Y hung on the second guide 23. The second thread holding member 25 is disposed downstream of the first thread holding member 24 in the thread running direction. The second thread holding member 25 is a plate-shaped member extending in the left-right direction. The second thread holding member 25 has multiple second holding grooves 25a whose left-right pitch is the same as the left-right pitch of the multiple second grooves 23a. The pitch of the second holding grooves 25a is the distance between the centers of adjacent second holding grooves 25a. The left-right movement of the multiple threads Y hung on the second holding grooves 25a is restricted. The left-right positions of the multiple second grooves 23a and the multiple second holding grooves 25a are approximately the same. The second yarn holding member 25 is movable between a yarn hooking position (see Figs. 2 and 5) where the multiple yarns Y are hooked in the multiple second holding grooves 25a, and a transfer completion position (see Figs. 3 and 6) where transfer of the multiple yarns Y to the second regulating guide 23 is completed. Note that "the multiple second grooves 23a and the multiple second holding grooves 25a are substantially in the same position in the left-right direction" includes cases where the multiple second grooves 23a and the multiple second holding grooves 25a are exactly in the same position in the left-right direction and cases where they are slightly misaligned.

[0052] As shown in Figs. 2 and 5, when the second thread holding member 25 is in the threading position, it is located upstream of the second regulating guide 23 and downstream of the first thread holding member 24 in the thread running direction, and in front of the thread processing unit 21 in the front-rear direction. Furthermore, as shown in Fig. 5, when the second thread holding member 25 is in the threading position, it is deviated forward in the front-rear direction from the yarn path when multiple threads Y are hung on the first regulating guide 22 and the second regulating guide 23 when viewed from the left-right direction. That is, the threading position of the second thread holding member 25 is a position where the second thread holding member 25 is deviated in the opening direction of the second groove 23a from the yarn path when multiple threads Y are hung on the first regulating guide 22 and the second regulating guide 23 when viewed from the left-right direction. Furthermore, as shown in Figs. 3 and 6, when the second thread holding member 25 is in the transfer completion position, it is located downstream of the second regulating guide 23 in the thread running direction, and behind the second regulating guide 23 in the front-rear direction. To further supplement, the transfer completion position of the second yarn holding member 25 is a position where the second yarn holding member 25 retreats from the yarn path when the multiple yarns Y are hooked on the first restriction guide 22 and the second restriction guide 23. The second yarn holding member 25 transfers each of the multiple yarns Y to the corresponding multiple second grooves 23a while moving from the yarn hooking position to the transfer completion position.

[0053] 2 and 5, the first thread holding member 24 at the threading position and the second thread holding member 25 at the threading position are adjacent to each other in the thread running direction. Here, being adjacent to each other means that the distance between the front end of the first thread holding member 24 at the threading position and the front end of the second thread holding member 25 at the threading position is 0 to 10 mm.

[0054] As shown in Fig. 5, when viewed from the left-right direction, the angle x between the first depth direction D1, which is the depth direction of the first holding groove 24a of the first thread holding member 24 at the threading position, and the second depth direction D2, which is the depth direction of the second holding groove 25a of the second thread holding member 25 at the threading position, is an acute angle. Specifically, when viewed from the left-right direction, the angle x between the first depth direction D1 and the second depth direction D2 is preferably 15 degrees or more, for example, 20 degrees. In this embodiment, the first depth direction D1 is parallel to the front-rear direction, and the second depth direction D2 is inclined from the front-rear direction so that the front side is located upward and the rear side is located downward (see Fig. 5).

[0055] 5, in the first depth direction D1, the tip of the second thread holding member 25 at the threading position is closer to the opening of the first holding groove 24a than the tip of the first thread holding member 24 at the threading position. That is, in this embodiment, the tip of the second thread holding member 25 at the threading position is closer to the front-rear direction than the tip of the first thread holding member 24 at the threading position.

[0056] The interlocking mechanism 30 interlocks the movement of the first thread holding member 24 between the threading position and the handover completion position with the movement of the second thread holding member 25 between the threading position and the handover completion position. As shown in Fig. 7, the interlocking mechanism 30 has a first swing arm 41 that is rotatable about a first swing shaft 51 along the left-right direction, and a second swing arm 42 that is rotatable about a second swing shaft 52 along the left-right direction.

[0057] As shown in Fig. 2, the first swing arm 41 supports the left end of the first thread holding member 24 at its tip end in a cantilever manner. The first swing arm 41 rotates about the first swing shaft 51, thereby allowing the first thread holding member 24 to swing between the threading position and the handover completion position (see the solid arrow in Fig. 7). When the first thread holding member 24 is in the threading position, the first swing arm 41 is extended in the front-rear direction (see Fig. 7). When the first thread holding member 24 is in the handover completion position, the first swing arm 41 is extended diagonally upward and forward (see Fig. 8).

[0058] As shown in Fig. 2, the second swing arm 42 supports the left end of the second thread holding member 25 at its tip end in a cantilever manner. The second swing arm 42 rotates about the second swing shaft 52, thereby allowing the second thread holding member 25 to swing between the threading position and the handover completion position (see the solid arrow in Fig. 7). When the second thread holding member 25 is in the threading position, the second swing arm 42 is extended in the front-rear direction (see Fig. 7). When the second thread holding member 25 is in the handover completion position, the second swing arm 42 is extended diagonally downward and forward (see Fig. 8).

[0059] 7, the first swing arm 41 includes a first gear 53 having four teeth, and the second swing arm 42 includes a second gear 54 having five teeth. The first gear 53 and the second gear 54 mesh with each other. The number of teeth forming the first gear 53 does not have to be four. The number of teeth forming the second gear 54 does not have to be five.

[0060] The interlocking mechanism 30 rotates the first swing arm 41 and the second swing arm 42 in an interlocking manner by meshing the first gear 53 and the second gear 54. The interlocking mechanism 30 has, 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, and may have, for example, a lever (not shown) attached to either the first swing arm 41 or the second swing arm 42. In this case, the rotation of either the first swing arm 41 or the second swing arm 42 is started by an operator pulling the lever. Then, since the first gear 53 and the second gear 54 are meshed, the other of the first swing arm 41 or the second swing arm 42 also rotates in an interlocking manner.

[0061] (Threading the yarn onto the yarn processing device 7) Next, a specific procedure for threading the multiple yarns Y on the first restriction guide 22 and the second restriction guide 23 of the yarn processing device 7 will be described. In the spinning production equipment 1, after threading on the leading guide 6, the yarn is threaded on the two restriction guides of the yarn processing device 7. Threading on the first restriction guide 22 and the second restriction guide 23 of the yarn processing device 7 is performed using, for example, a suction gun 80. The suction gun 80 converges the multiple yarns Y while sucking them in.

[0062] Before threading the yarn on the yarn processing device 7, the interlocking mechanism 30 moves the first thread holding member 24 and the second thread holding member 25 to the threading position in advance (see FIG. 2). Then, as shown in FIG. 5, the operator threads the multiple yarns Y collectively sucked by the suction gun 80 into the first holding grooves 24a of the first thread holding member 24 and the second holding grooves 25a of the second thread holding member 25. At this time, the operator threads the yarn on the first thread holding member 24 and the second thread holding member 25 while looking at the first thread holding member 24 and the second thread holding member 25 provided on the yarn processing device 7, which is located slightly above the height of the operator's line of sight.

[0063] The behavior of the operator when threading a plurality of yarns Y on the first thread holding member 24 and the second thread holding member 25 using the suction gun 80 will be specifically described below. The operator looks at the first thread holding member 24 and the second thread holding member 25 by peering into the bottom of the first holding groove 24a from a position slightly below the yarn processing device 7. In other words, the operator looks up at the first thread holding member 24 and the second thread holding member 25 from a position slightly below the yarn processing device 7 so that the line of sight and the first depth direction D1 of the first thread holding member 24 are as parallel as possible. Here, as described above, in the front-rear direction, the tip of the second thread holding member 25 at the threading position is forward of the tip of the first thread holding member 24 at the threading position (see FIG. 5). Therefore, when an operator looks up from a position slightly below the yarn processing device 7 to see the first thread holding member 24 and the second thread holding member 25 at the threading position, a part or the whole of the first thread holding member 24 is hidden behind the second thread holding member 25. Furthermore, as described above, the angle x between the first depth direction D1 of the first holding groove 24a of the first thread holding member 24 at the threading position and the second depth direction D2 of the second holding groove 25a of the second thread holding member 25 at the threading position is 20 degrees (see FIG. 5). Therefore, when an operator looks at the first thread holding member 24 and the second thread holding member 25 while peering into the bottom of the first holding groove 24a, the second thread holding member 25 is the one that the operator sees. As for the second thread holding member 25, the bottom part of the second holding groove 25a and the part that is not a groove are not aligned in a straight line. Therefore, the operator can easily distinguish the grooved and non-grooved portions of the second holding groove 25a. Therefore, the operator adjusts the position of the suction gun 80 so that the pitch of the easily distinguished second holding groove 25a matches the pitch of the multiple yarns Y sucked into the suction port 81 of the suction gun 80, and threads the yarns on the first yarn holding member 24 and the second yarn holding member 25. As described above, the first yarn holding member 24 at the threading position and the second yarn holding member 25 at the threading position are adjacent to each other in the yarn running direction. Therefore, the multiple yarns Y are threaded on the first yarn holding member 24 and the second yarn holding member 25 at the same time.

[0064] Next, the interlocking mechanism 30 moves the first thread holding member 24 at the threading position toward the transfer completion position, and interlockingly moves the second thread holding member 25 at the threading position toward the transfer completion position. Specifically, when viewed from the right side in the left-right direction, the first swing arm 41 rotates counterclockwise (solid arrow in FIG. 7) about the first swing shaft 51, causing the first thread holding member 24 to swing from the threading position toward the transfer completion position. Also, when viewed from the right side in the left-right direction, the second swing arm 42 rotates clockwise (solid arrow in FIG. 7) about the second swing shaft 52, causing the second thread holding member 25 to swing from the threading position toward the transfer completion position.

[0065] The multiple yarns Y held by the first yarn holding member 24 are handed over to the first grooves 22a of the first restriction guide 22 while the first yarn holding member 24 is moving from the threading position to the transfer completion position. Specifically, after the yarns Y hooked in the first holding grooves 24a come into contact with the bottom of the first grooves 22a of the first restriction guide 22, the first yarn holding member 24 moves further toward the transfer completion position, whereby the yarns Y hooked in the first holding grooves 24a are handed over to the first grooves 22a. This completes the threading operation on the first restriction guide 22.

[0066] The multiple yarns Y held by the second yarn holding member 25 are handed over to the second grooves 23a of the second regulating guide 23 while the second yarn holding member 25 is moving from the threading position to the transfer completion position. Specifically, after the yarns Y hung in the second holding grooves 25a come into contact with the bottom of the second grooves 23a of the second regulating guide 23, the second yarn holding member 25 further moves toward the transfer completion position, whereby the yarns Y hung in the second holding grooves 25a are handed over to the second grooves 23a. This completes the threading operation on the second regulating guide 23.

[0067] The multiple yarns Y hung on the first restriction guide 22 and the second restriction guide 23 are guided by the inclined surfaces 26a, 26b of the yarn processing section 21 and inserted into the first yarn path .

[0068] (effect) The yarn processing device 7 of this embodiment includes a first restricting guide 22 arranged upstream of the yarn processing section 21 in the yarn running direction, a second restricting guide 23 arranged downstream of the yarn processing section 21, a first yarn holding member 24 capable of holding a plurality of yarns Y hung on the first restricting guide 22, and a second yarn holding member 25 capable of holding a plurality of yarns Y hung on the second restricting guide 23. The first yarn holding member 24 has a plurality of first holding grooves 24a and is movable between a yarn hooking position and a transfer completion position. The second yarn holding member 25 has a plurality of second holding grooves 25a and is movable between a yarn hooking position and a transfer completion position. The first yarn holding member 24 at the yarn hooking position and the second yarn holding member 25 at the yarn hooking position are adjacent to each other in the yarn running direction. Furthermore, when viewed from the left-right direction, the angle x between the first depth direction D1, which is the depth direction of the first holding groove 24a of the first thread holding member 24 in the threading position, and the second depth direction D2, which is the depth direction of the second holding groove 25a of the second thread holding member 25 in the threading position, is an acute angle.

[0069] According to this embodiment, when viewed from the left and right direction, the angle x between the first depth direction D1 of the first holding groove 24a of the first thread holding member 24 at the threading position and the second depth direction D2 of the second holding groove 25a of the second thread holding member 25 at the threading position is an acute angle. Therefore, even if an operator peers into the bottom of the first holding groove 24a of the first thread holding member 24 at the threading position in order to match the pitch of the multiple threads Y collectively sucked into the suction gun 80 with the pitch of the first holding groove 24a, the operator will see the second thread holding member at the threading position from a direction intersecting the depth direction D2 of the second holding groove 25a. In other words, when an operator looks at the two thread holding members at the threading position, the bottom part and the non-groove part of the second holding groove 25a of the second thread holding member 25 are not aligned in substantially the same straight line, making it easier to distinguish the groove part and the non-groove part of the second holding groove 25a. In this embodiment, since the two yarn holding members at the yarn hooking position are adjacent to each other in the yarn running direction, an operator can easily hook multiple yarns Y on each of the holding grooves of the two yarn holding members using the pitch of the second holding grooves 25a of the second yarn holding member 25, which makes it easy to distinguish the grooved portions, as a reference, thereby facilitating the operation of threading the yarn on the two yarn holding members. This makes it easy to thread the yarn on the two regulating guides arranged upstream and downstream of the yarn processing unit 21 of the yarn processing device 7 in the yarn running direction.

[0070] In addition, in this embodiment, in the first depth direction D1, the tip of the second thread holding member 25 at the threading position is closer to the opening side of the first holding groove 24a than the tip of the first thread holding member 24 at the threading position. When performing threading work, if an operator looks at the two thread holding members at the threading position and both thread holding members are in the field of view, it is difficult to determine the line of sight. In other words, even if the operator focuses on one thread holding member, the other thread holding member is in the field of view, and the operator's line of sight tends to shift. This makes it difficult to perform threading work on the thread holding members. According to this embodiment, the operator can see the two thread holding members at the threading position with part or all of the first thread holding member 24 hidden behind the second thread holding member 25. Therefore, even if the operator focuses on the second thread holding member 25, part or all of the first thread holding member 24 can be excluded from the field of view, and the operator's line of sight can be prevented from shifting. This makes it even easier to perform threading work on the two thread holding members.

[0071] In this embodiment, the angle x between the first depth direction D1 and the second depth direction D2 is 20 degrees when viewed from the left and right direction. If the angle x between the first depth direction D1 and the second depth direction D2 when viewed from the left and right direction is too small, there is a limit to improving the visibility of the pitch of the holding grooves of each thread holding member at the threading position. According to this embodiment, the angle x between the first depth direction D1 and the second depth direction D2 when viewed from the left and right direction is 15 degrees or more. Therefore, when looking into the bottom of the first holding groove 24a of the first thread holding member 24 at the threading position, the bottom part of the second holding groove 25a of the second thread holding member 25 at the threading position and the part that is not a groove can be clearly distinguished. This makes it even easier to thread the two thread holding members.

[0072] Furthermore, in this embodiment, the first thread holding member 24 and the second thread holding member 25 are plate-shaped members. According to this embodiment, by reducing the thickness of the first thread holding member 24 and the second thread holding member 25 made of plate-shaped members, the first thread holding member 24 and the second thread holding member 25 at the threading position can be brought closer to each other in the thread running direction. This makes it even easier to collectively thread multiple threads Y in the multiple holding grooves of each thread holding member.

[0073] In addition, in this embodiment, the yarn processing device 7 has an interlocking mechanism 30 that interlocks the movement of the first yarn holding member 24 between the threading position and the transfer completion position with the movement of the second yarn holding member 25 between the threading position and the transfer completion position. If only the transfer of the yarn Y from one of the yarn holding members to the regulating guide is performed first, there is a risk that the yarn Y will float and fall off one of the regulating guides to which the transfer of the yarn Y has already been completed, due to the subsequent transfer of the yarn Y from the other yarn holding member to the regulating guide. According to this embodiment, the transfer of the yarn Y from the first yarn holding member 24 to the first regulating guide 22 and the transfer of the yarn Y from the second yarn holding member 25 to the second regulating guide 23 can be performed at the same time. Therefore, the yarn threading operation on the two regulating guides can be performed more reliably.

[0074] In this embodiment, the interlocking mechanism 30 has a first swing arm 41 that is rotatable about a first swing shaft 51 along the left-right direction and swingably supports the first thread holding member 24, and a second swing arm 42 that is rotatable about a second swing shaft 52 along the left-right direction and swingably supports the second thread holding member 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 with each other by meshing the first gear 53 and the second gear 54, thereby interlocking the movement of the first thread holding member 24 and the movement of the second thread holding member 25. According to this embodiment, the first swing arm 41 and the second swing arm 42 rotate in conjunction with each other through meshing of the first gear 53 and the second gear 54, thereby allowing the first thread holding member 24 and the second thread holding member 25 to swing in conjunction with each other. Therefore, a complicated configuration or control is not required to move the first thread holding member 24 and the second thread holding member 25 in conjunction with each other.

[0075] In the present embodiment, the threading position of the first thread holding member 24 is a position, when viewed from the left-right direction, where the first thread holding member 24 is out of the yarn path when the multiple threads Y are hung on the first restriction guide 22 and the second restriction guide 23, in the opening direction of the first groove 22a. In addition, the threading position of the second thread holding member 25 is a position, when viewed from the left-right direction, where the second thread holding member 25 is out of the yarn path when the multiple threads Y are hung on the first restriction guide 22 and the second restriction guide 22, in the opening direction of the second groove 23a. According to the present embodiment, when multiple threads Y are hung on the first thread holding member 24 and the second thread holding member 25 at the threading position, it is possible to prevent the thread Y from being unintentionally hung in a groove where the thread Y should not be hung, among the multiple first grooves 22a of the first restriction guide 22 and the multiple second grooves 23a of the second restriction guide 23. Then, by moving the first yarn holding member 24 to the transfer completion position in a state where the yarn Y is held by the first yarn holding member 24 and the yarn Y is not hung on the first restriction guide 22, the yarn Y can be more reliably hung in the first groove 22a in which the yarn Y should be hung, among the multiple first grooves 22a. Similarly, by moving the second yarn holding member 25 to the transfer completion position in a state where the yarn Y is held by the second yarn holding member 25 and the yarn Y is not hung on the second restriction guide 23, the yarn Y can be more reliably hung in the second groove 23a in which the yarn Y should be hung, among the multiple second grooves 23a.

[0076] Furthermore, in this embodiment, when viewed from the left-right direction, the first restriction guide 22 is disposed at a position that is out of the yarn path of the multiple yarns Y hung on the first yarn holding member 24 at the yarn hooking position. According to this embodiment, when the yarn Y is hung on the first yarn holding member 24 at the yarn hooking position, it is possible to further prevent the yarn Y from being unintentionally hung on a first groove 22a among the multiple first grooves 22a of the first restriction guide 22 in which the yarn Y should not be hung.

[0077] (Modification) Below, a modified example of the above embodiment will be described. Components having similar configurations will be given the same reference numerals and descriptions thereof will be omitted as appropriate.

[0078] In the above embodiment, in the first depth direction D1, the tip of the second thread holding member 25 at the threading position is closer to the opening of the first holding groove 24a than the tip of the first thread holding member 24 at the threading position. However, in the second depth direction D2, the tip of the first thread holding member 24 at the threading position may be closer to the opening of the second holding groove 25a than the tip of the second thread holding member 25 at the threading position. In other words, in the front-rear direction, the tip of the first thread holding member 24 at the threading position may be closer to the front of the tip of the second thread holding member 25 at the threading position.

[0079] In the above embodiment, the angle x between the first depth direction D1 and the second depth direction D2 is 15 degrees or more when viewed from the left-right direction. However, the angle x between the first depth direction D1 and the second depth direction D2 when viewed from the left-right direction may be an acute angle of less than 15 degrees.

[0080] In the above embodiment, the yarn processing device 7 is a device for imparting convergence to the multiple 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 upstream and downstream of the yarn processing device in order to perform a predetermined process in the yarn processing device on the multiple yarns Y traveling approximately parallel to each other and at approximately equal intervals. For example, the yarn processing device includes a device having, as a yarn processing device, an oil nozzle that applies oil to the multiple yarns Y, a tension sensor that detects the tension of the multiple yarns Y, etc.

[0081] In the above embodiment, the first thread holding member 24 is swung by the first swing arm 41, and the second thread holding member 25 is swung by the second swing arm 42. However, the first thread holding member 24 and the second thread holding member 25 are not limited to being swingable. For example, the first thread holding member 24 may be movable between the threading position and the transfer completion position by moving in the vertical direction and the front-rear direction. Similarly, the second thread holding member 25 may be movable between the threading position and the transfer completion position by moving in the vertical direction and the front-rear direction. Specifically, the first thread holding member 24 at the threading position moves upward and then rearward to move to the transfer completion position. Also, the second thread holding member 25 at the threading position moves downward and then rearward to move to the transfer completion position. Also, the first thread holding member 24 may be movable between the threading position and the transfer completion position by moving in an oblique direction. Similarly, the second yarn holding member 25 may be movable between the yarn hooking position and the handover completion position by moving in an oblique direction.

[0082] In the above embodiment, the yarn processing device 7 has an interlocking mechanism 30 that interlocks the movements of the first yarn holding member 24 and the second yarn holding member 25. However, the yarn processing device 7 does not have to have the interlocking mechanism 30. In this case, the movement of the first yarn holding member 24 between the yarn hooking position and the transfer completion position and the movement of the second yarn holding member 25 between the yarn hooking position and the transfer completion position are performed independently of each other.

[0083] In the above embodiment, threading on the yarn processing device 7 is performed using the suction gun 80. However, threading may be performed using a hook guide that converges a plurality of yarns Y at one point.

[0084] In the above embodiment, the first thread holding member 24 at the threading position and the second thread holding member 25 at the threading position are disposed downstream of the first restricting guide 22 in the thread running direction and upstream of the second restricting guide 23. However, the first thread holding member 24 at the threading position and the second thread holding member 25 at the threading position may be disposed 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.

[0085] In the above embodiment, the yarn processing device 7 is disposed below the plurality of guiding guides 6 and above the godet roller 11 in the spinning production equipment 1. However, the location where the yarn processing device 7 is disposed is not limited thereto. In a case where the intervals between the plurality of yarns differ between the upstream side and the downstream side in the yarn running direction by performing a threading operation using a suction gun 80 or the like, the configuration of the present invention may be effective when attempting to thread the yarn Y on two regulating guides (first regulating guide and second regulating guide) that are spaced apart in the yarn running direction and have a plurality of groove portions (first groove and second groove) that are the same in the arrangement direction.

[0086] In the above embodiment, the multiple yarns Y converging toward the suction gun 80 are arranged in the multiple yarn traveling spaces 31 formed in the yarn processing unit 21. That is, the pitch in the arrangement direction of the multiple yarns Y is wider on the upstream side in the yarn traveling direction than on the downstream side. However, the pitch in the arrangement direction of the multiple yarns Y arranged in the multiple yarn traveling spaces 31 may be narrower on the upstream side in the yarn traveling direction than on the downstream side. [Explanation of symbols]

[0087] 7 Yarn processing device 21 Yarn processing section 22 First Regulatory Guide 22a 1st groove 23 Second Regulatory Guide 23a 2nd groove 24 First thread holding member 24a 1st retaining groove 25 Second thread holding member 25a 2nd retaining groove 30 Interlocking mechanism 31 Yarn running space 41 First swing arm 42 Second swing arm 51 First swing shaft 52 Second swing axis 53 1st Gear 54 2nd Gear 80 Suction Gun D1 First depth direction D2 Second depth direction x angle Y Thread

Claims

1. a yarn processing section for performing a predetermined process on the plurality of yarns running in a state of being aligned in an arrangement direction intersecting a yarn running direction in which the plurality of yarns run; a first restriction guide having a plurality of first grooves aligned in the arrangement direction and disposed upstream of the yarn processing section in the yarn traveling direction; a second restriction guide having a plurality of second grooves whose pitch in the arrangement direction is the same as that of the plurality of first grooves, and disposed downstream of the yarn processing section in the yarn traveling direction; a first thread holding member having a plurality of first holding grooves whose pitch in the arrangement direction is the same as that of the plurality of first grooves, and capable of holding a plurality of threads hung on the first restriction guide; a second yarn holding member having a plurality of second holding grooves whose pitch in the arrangement direction is the same as that of the plurality of second grooves, and capable of holding a plurality of yarns hung on the second restriction guide; Equipped with the first yarn holding member is movable between a yarn hooking position where the plurality of yarns are hooked on the plurality of first holding grooves and a transfer completion position where transfer of the plurality of yarns to the first restriction guide is completed, the second yarn holding member is movable between a yarn hooking position where the plurality of yarns are hooked on the plurality of second holding grooves and a transfer completion position where transfer of the plurality of yarns to the second regulating guide is completed, the first yarn holding member at the yarn hooking position and the second yarn holding member at the yarn hooking position are adjacent to each other in the yarn running direction, a first depth direction, which is the depth direction of the first holding groove of the first yarn holding member at the yarn hooking position, and a second depth direction, which is the depth direction of the second holding groove of the second yarn holding member at the yarn hooking position, forming an acute angle when viewed from the arrangement direction.

2. In the first depth direction, a tip end of the second thread holding member at the thread hooking position is closer to an opening side of the first holding groove than a tip end of the first thread holding member at the thread hooking position. Or, 2. The yarn processing device according to claim 1, wherein, in the second depth direction, a tip end of the first yarn holding member at the yarn hooking position is closer to an opening of the second holding groove than a tip end of the second yarn holding member at the yarn hooking position.

3. The yarn processing device according to claim 1, wherein an angle formed between the first depth direction and the second depth direction is 15 degrees or more when viewed from the arrangement direction.

4. A yarn processing device as described in Claim 2, characterized in that when viewed from the arrangement direction, the angle between the first depth direction and the second depth direction is 15 degrees or more.

5. The yarn processing device according to claim 1 , wherein the first yarn holding member and the second yarn holding member are plate-shaped members.

6. A thread processing device as described in Claim 2, characterized in that the first thread holding member and the second thread holding member are plate-shaped members.

7. A thread processing device as described in Claim 3, characterized in that the first thread holding member and the second thread holding member are plate-shaped members.

8. A thread processing device as described in Claim 4, characterized in that the first thread holding member and the second thread holding member are plate-shaped members.

9. 2. The yarn processing device according to claim 1, further comprising an interlocking mechanism that interlocks the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

10. A yarn processing device as described in Claim 2, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

11. A yarn processing device as described in Claim 3, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

12. A yarn processing device as described in Claim 4, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

13. A yarn processing device as described in Claim 5, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

14. A yarn processing device as described in Claim 6, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

15. A yarn processing device as described in Claim 7, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

16. A yarn processing device as described in Claim 8, characterized in that it has a linkage mechanism that links the movement of the first yarn holding member between the yarn hooking position and the transfer completion position with the movement of the second yarn holding member between the yarn hooking position and the transfer completion position.

17. 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 thread holding member; a second swing arm that is rotatable around a second swing axis along the arrangement direction and swingably supports the second thread holding member, the first swing arm includes a first gear; the second swing arm includes a second gear; The interlocking mechanism rotates the first swing arm and the second swing arm in an interlocking manner by meshing the first gear and the second gear, thereby moving the first thread holding member and The yarn processing device according to any one of claims 9 to 16, characterized in that the movement of the second yarn holding member is interlocked.

18. the yarn hooking position of the first yarn holding member is a position where, when viewed from the arrangement direction, the first yarn holding member is deviated from a yarn path when a plurality of yarns are hooked on the first restriction guide and the second restriction guide, in an opening direction of the first groove, The yarn processing device according to any one of claims 1 to 16, characterized in that the yarn hooking position of the second yarn holding member, when viewed from the arrangement direction, is a position where the second yarn holding member is deviated from a yarn path when multiple yarns are hooked on the first regulating guide and the second regulating guide, in an opening direction of the second groove.

19. The thread hooking position of the first thread holding member, when viewed from the arrangement direction, is a position where the first thread holding member deviates from the thread path when multiple threads are hooked on the first regulating guide and the second regulating guide in the opening direction of the first groove, 18. The yarn processing device according to claim 17, wherein the yarn hooking position of the second yarn holding member is a position where, when viewed from the arrangement direction, the second yarn holding member deviates from a yarn path when multiple yarns are hooked on the first restriction guide and the second restriction guide in an opening direction of the second groove.

20. 19. The yarn processing device according to claim 18, wherein the first restriction guide is disposed at a position that is out of a yarn path for the plurality of yarns hooked on the first yarn holding member at the yarn hooking position when viewed from the arrangement direction.

21. A yarn processing device as described in Claim 19, characterized in that the first regulating guide is positioned at a position outside the yarn path of the multiple yarns hung on the first yarn holding member at the yarn hanging position when viewed from the arrangement direction.

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