TWI889975B - Connection member and yarn threading method - Google Patents

Abstract

An object of the present invention is to reliably capture yarns without loosening the yarns in yarn threading to winding bobbins attached to a connection member. A connection member 60 is configured to connect two winding bobbins B2a and B2b, which are provided for winding at least one running yarn Y, to be aligned in a predetermined axial direction. The connection member 60 includes (i) a base portion 61 which is sandwiched by the two winding bobbins B2a and B2b aligned in the axial direction and (ii) paired attachment units 62 which are provided on both sides of the base portion 61 in the axial direction, the two winding bobbins B2a and B2b being attachable to the paired attachment units 62. The base portion 61 includes (i) a guide surface 73 configured to guide at least one running yarn Y (yarn Yb) radially inward and (ii) a capturing claw 72 configured to capture the at least one running yarn Y (yarn Yb) guided radially inward by the guide surface 73.

Description

Connecting structure and hanging method

The present invention relates to a connecting member for connecting a plurality of winding bobbins for winding yarns respectively and a yarn hanging method.

The winding device for winding yarns disclosed in Patent Documents 1 and 2 is configured to switch the number of yarns that can be wound simultaneously onto a paper tube (winding bobbin) held by a bobbin holder. The bobbin holder includes two winding bobbins (hereinafter referred to as "winding bodies") connected axially by, for example, a connecting member. This allows the winding device to wind two yarns onto the winding bodies. The end of one of the two yarns is retained, for example, by being sandwiched between the end face of one winding bobbin and the bobbin holder. The end of the other of the two wires can be held, for example, by being sandwiched between the end surface of the other winding bobbin and the gap between the connecting member.

In the winding device, when two threads are hung on the winding body, the two threads, supplied from the upstream side in the direction of thread travel, are sucked and held by, for example, two suction nozzles. The two traveling threads are drawn radially inward toward the boundary between the rotating winding tube and the bobbin holder (or connecting member) by an operator or the automatic thread-hanging device described in Patent Document 2. When the threads are caught in the gap between the winding tube and the bobbin holder (or connecting member), the portion of the threads that is upstream of the winding body in the direction of thread travel is wound around the gap and held. Furthermore, the portion of the yarn further downstream from the winding body in the direction of yarn travel is naturally broken, for example due to tension, and is removed by suction using a suction nozzle. This allows the yarn end to be retained in the gap between the winding bobbin and the bobbin holder (or connecting member), allowing the yarn to be wound onto the winding body. Prior Art Patent

Patent Document 1: Japanese Patent Application Publication No. 2013-35640 Patent Document 2: Japanese Patent Application Publication No. 2013-23385

Invent the problem you want to solve

In recent years, as the production of thinner yarns has become possible, the following problems have emerged when capturing the yarn in the gap between the winding bobbin and the connecting member. Even if the thin yarn is once caught in the gap between the winding bobbin and the connecting member, it is difficult to hold it securely there and can easily fall out. This situation can cause the running yarn to become unstable, with tension and looseness. If the slack in the yarn spreads to the upstream side of the yarn's travel direction, the yarn located upstream may not be able to travel properly. Furthermore, thin threads cannot be caught in the gap between the winding bobbin and the connecting member, which may cause thread hanging failure.

The present invention aims to securely capture the yarn without loosening it when it is being placed on a winding bobbin mounted on a connecting member. Technical Solution

The connecting member of the first invention is configured to connect two winding bobbins for winding a running thread in a predetermined axial arrangement, and is characterized in that it comprises: a base portion configured to be sandwiched between the two winding bobbins arranged in the axial direction, and a pair of mounting portions configured on both sides of the base portion in the axial direction and configured to be able to mount the two winding bobbins. The base portion comprises: a pair of blocking portions arranged between the pair of mounting portions in the axial direction and limiting the movement of the two winding bobbins in the axial direction; a guide surface arranged between the pair of blocking portions in the axial direction and guiding the traveling wire toward the radial inner side of the base portion; and a capturing claw for capturing the wire guided by the guide surface toward the radial inner side.

For ease of explanation, the structure consisting of two winding bobbins and a connecting member is called a winding body. In the present invention, by bringing the traveling yarn closer to the rotating winding body and then hooking the yarn with the capture claws of the connecting member, the yarn can be wound into the capture claws and reliably captured. Here, if other parts of the connecting member inadvertently apply resistance to the yarn before it reaches the capture claws, there is a concern that the yarn will not be able to run smoothly and will become slack. In this regard, the present invention can smoothly guide the yarn to the radial inner side by using the guide surface. Therefore, the yarn can reach the capture claws while suppressing the inadvertent application of resistance to the yarn. Therefore, the thread can be captured securely without becoming loose.

The connecting structure of the second invention is that in the above-mentioned first invention, the above-mentioned capturing claw has: a receiving surface formed at least toward one side in the circumferential direction of the above-mentioned base portion, and a protrusion that protrudes at least toward the above-mentioned one side in the circumferential direction more than the above-mentioned receiving surface and prevents the above-mentioned traveling wire received by the above-mentioned receiving surface from falling off.

In the present invention, when the winding body rotates toward one side in the circumferential direction, the wire can be captured by the receiving surface receiving the wire. Here, the receiving surface is only a component that receives the wire, and is not a component that, for example, clamps the wire and holds it. That is, at least the wire immediately after being received by the receiving surface can slide relative to the receiving surface. Therefore, it is possible to suppress the wire from falling into an unstable state of tightening and loosening due to the capturing claw. Moreover, the protrusion can be used to prevent the wire received by the receiving surface from moving radially outward and falling off the base. Therefore, it is possible to stably capture and hold the traveling wire.

A third invention is a connecting member according to the first or second invention, wherein the base portion has a guide slit formed by the guide surface and an opposing surface disposed to oppose the guide surface in the axial direction.

In the present invention, the thread can be guided radially inwardly and reliably by the guide slit.

The connecting structure of the fourth invention is any one of the first to third inventions, wherein the guide surface is at least directed toward one side in the axial direction; the capturing claw is arranged on the other side in the axial direction of the guide surface and protrudes at least toward one side in the circumferential direction of the base portion; the base portion has: a spare guide surface at least directed toward the other side in the axial direction and capable of guiding the traveling wire toward the inner side in the radial direction, and a spare capturing claw arranged on the one side in the axial direction of the guide surface and protruding at least toward the other side in the circumferential direction.

In the present invention, when the connecting member is rotated 180° within a plane parallel to the axis, the backup guide surface can function in place of the guide surface, and the backup capture claw can function in place of the capture claw. This allows the wire to be properly captured even when the winding body is installed in a wire winding device in an orientation opposite to its normal orientation. In other words, the orientation of the connecting member does not need to be considered when installing the connecting member in the winding device. This reduces the effort and time required to consider the orientation of the connecting member.

A fifth invention provides a connecting member according to the fourth invention, wherein the backup capturing claw is disposed at a position different from that of the capturing claw in the circumferential direction.

If all or part of the spare capturing claws are arranged in a position overlapping with the capturing claws in the circumferential direction, there is a concern that the base portion may be axially enlarged. If the capturing claws and spare capturing claws are axially reduced to avoid this, there is a risk of failure to capture and/or retain the thread. In the present invention, compared to a case where all or part of the spare capturing claws are arranged in a position overlapping with the capturing claws in the circumferential direction, it is possible to suppress the axial enlargement of the base portion while simultaneously forming the capturing claws and spare capturing claws larger. Therefore, it is possible to simultaneously achieve both "suppressing the enlargement of the connecting member" and "suppressing the failure to capture and/or retain the thread."

The connecting member of the sixth invention is any one of the first to fifth inventions, wherein the guide surface and the capturing claw are arranged radially inward of the radially outermost ends of the pair of blocking portions.

If the guide surface and/or the catching claws are positioned radially outward from the blocking portion, they may protrude radially outward from the two bobbins. In this case, for example, in a winding device, it may be difficult to handle the winding body in the same manner as a single, long winding bobbin. In the present invention, the guide surface and the catching claws are positioned radially inward from the radially outer end of the blocking portion. Therefore, by attaching two winding bobbins having an outer diameter greater than that of a pair of blocking portions to the connecting member, the winding body can be handled in the same manner as a single winding bobbin.

The connecting member of the seventh invention is the connecting member of the sixth invention, wherein one of the pair of blocking portions has an inclined surface, the inclined surface is connected to the guide surface and is formed so that its outer diameter decreases as it approaches the guide surface in the axial direction.

In the present invention, the traveling wire can be smoothly guided toward the guide surface by the inclined surface.

The eighth invention is a method for hanging a plurality of traveling threads on a winding body, wherein the winding body comprises a connecting structure according to any one of the first to seventh inventions and two winding bobbins mounted on the connecting structure. The method is characterized in that while the winding body is rotated, one of the plurality of threads is guided toward the inner side of the radial direction by the guide surface so as to be captured by the capture claw.

In the present invention, by allowing the capture claw to capture the silk thread, the silk thread can be securely captured and held without being loosened. Therefore, the success rate of hanging the silk thread can be improved.

Next, the embodiment of the present invention is described. The vertical direction of the paper in Figure 1 is defined as the machine length direction, and the horizontal direction of the paper is defined as the machine width direction. The direction perpendicular to both the machine length direction and the machine width direction is defined as the vertical direction (plumb line direction) in which gravity acts.

(The overall structure of the false twisting machine) First, the overall structure of the false twisting machine 1 including the winding device 21 (described later) of this embodiment will be described with reference to FIGS. 1 and 2 . FIG. 1 is a side view of the false twisting machine 1 . FIG. 2 is a schematic diagram of the false twisting machine 1 unfolded along the path (wire path) of the yarn Y.

The false twisting machine 1 is configured to be capable of false twisting the yarn Y made of synthetic fiber. The false twisting machine 1 includes a yarn feeding section 2 , a processing section 3 , and a winding section 4 . The yarn supply unit 2 is configured to be able to supply the yarn Y. The processing section 3 is configured to extract the yarn Y from the yarn supply section 2 and perform false twist processing. The winding unit 4 is configured to wind the yarn Y processed by the processing unit 3 onto the winding bobbin B1 or the winding body 100 (see FIGS. 1, 2 and 3(b); details will be described later). In the machine length direction perpendicular to the yarn running plane (the paper surface of Figure 1) used to configure the yarn path from the yarn supply unit 2 through the processing unit 3 to the winding unit 4, multiple components of the yarn supply unit 2, the processing unit 3 and the winding unit 4 are arranged (see Figure 2).

The yarn supply part 2 has a creel 7 holding a plurality of yarn supply packages Ps, and supplies a plurality of yarns Y to the processing part 3 . The processing section 3 is configured to extract a plurality of yarns Y from the yarn supply section 2 and process them. The processing section 3 is configured to include a first feeding roller 11, a twist-stopping guide 12, a first heating device 13, a cooling device 14, a false twisting device 15, a second feeding roller 16, a doubling device 17, a third feeding roller 18, a second heating device 19 and a fourth feeding roller 20 in order from the upstream side in the yarn traveling direction. The winding part 4 has a plurality of winding devices 21 . Each winding device 21 winds the yarn Y that has been falsely twisted by the processing unit 3 onto the winding bobbin B1 or the winding body 100 to form one or more winding packages Pw.

The false twisting machine 1 has a main machine table 8 and a winding table 9 arranged at intervals in the width direction of the machine table. The main machine table 8 and the winding table 9 are arranged to extend substantially the same length along the machine table length direction. The main machine table 8 and the winding table 9 are arranged to face each other in the machine table width direction. The false twisting machine 1 has a unit unit called a span including a main machine table 8 and a winding table 9 . In one span, each device is arranged so as to simultaneously perform false twist processing on a plurality of yarns Y traveling in a state aligned along the machine length direction. In the false twisting machine 1, the span is arranged left and right symmetrically on the paper with the center line C in the machine width direction of the main machine table 8 as the axis of symmetry (the main machine table 8 is common to the left and right spans). Furthermore, multiple spans are arranged along the length of the machine.

(Structure of processing department) The structure of the processing section 3 will be described with reference to FIGS. 1 and 2 . The first yarn feeding roller 11 is configured to unwind the yarn Y from the yarn supply package Ps installed on the yarn supply unit 2 and transport it to the first heating device 13 . The first yarn feeding roller 11 is configured to be able to convey, for example, two yarns Y to the first heating device 13, but is not limited thereto. The twist-stopping guide 12 is configured so that the twist applied to the yarn Y by the false twisting device 15 does not propagate upstream of the twist-stopping guide 12 in the yarn traveling direction. The first heating device 13 is configured to heat the yarn Y fed from the first yarn feeding roller 11 . For example, as shown in FIG. 2 , the first heating device 13 is configured to be able to heat four yarns Y, but it is not limited to this. The cooling device 14 is configured to cool the yarn Y heated by the first heating device 13 . For example, as shown in FIG. 2 , the cooling device 14 is configured to be able to cool four yarns Y, but it is not limited to this. The false twisting device 15 is disposed downstream of the cooling device 14 in the yarn traveling direction, and is configured to apply twist to the yarn Y. The false twisting device 15 is, for example, a so-called disk friction type false twisting device, but is not limited thereto. The second yarn feeding roller 16 is configured to convey the yarn Y processed by the false twisting device 15 to the doubling device 17 . The second yarn feed roller 16 conveys the yarn Y at a faster speed than the first yarn feed roller 11. As a result, the yarn Y is stretched between the first yarn feed roller 11 and the second yarn feed roller 16.

The doubling device 17 is configured to be able to combine the yarn Ya and the yarn Yb to form the yarn Yc. The doubling device 17 can, for example, combine the yarn Ya processed by a certain false twisting device 15 with the yarn Yb processed by the false twisting device 15 arranged adjacent to the false twisting device 15 . The doubling device 17 has two interlacing nozzles 31 and 32 (see FIG. 2 ). The merging device 17, for example, sprays air onto the yarns Ya and Yb passing through the interlacing nozzle 31 (see the left side of Figure 2 ). This jet interlaces the yarns Ya and Yb using the air flow, merging them to form the yarn Yc. Alternatively, the merging device 17 may not merge the yarns Ya and Yb, but instead directly guide the two yarns Y downstream in the direction of yarn travel. In this case, the yarn Ya passes through the interlacing nozzle 31, while the yarn Yb passes through the interlacing nozzle 32 (see the right side of Figure 2 ).

The third feed roller 18 is configured to convey the yarn Y traveling downstream of the combining device 17 in the yarn travel direction to the second heating device 19. For example, as shown in FIG2 , the third feed roller 18 is configured to convey two yarns Y to the second heating device 19, but this is not limited to this configuration. Furthermore, the speed at which the third feed roller 18 conveys the yarn Y is slower than the speed at which the second feed roller 16 conveys the yarn Y. Therefore, the yarn Y is relaxed between the second and third feed rollers 16 and 18. The second heating device 19 is configured to heat the yarn Y fed from the third feed roller 18. The second heating device 19 extends in the vertical direction of the lead, one for each span. The fourth feed roll 20 is configured to convey the yarn Y heated by the second heating device 19 to the winding device 21. For example, as shown in Figure 2, the fourth feed roll 20 is configured to convey two yarns Y to the winding device 21, but this is not limited to this. The speed at which the fourth feed roll 20 conveys the yarn Y is slower than the speed at which the third feed roll 18 conveys the yarn Y. Therefore, the yarn Y is slack between the third and fourth feed rolls 18 and 20.

In the processing section 3 configured as described above, the yarn Y drawn between the first yarn feeding roller 11 and the second yarn feeding roller 16 is twisted by the false twisting device 15 . The twist formed by the false twist device 15 propagates to the twist-stopping yarn guide 12 but does not propagate to the upstream side of the twist-stopping yarn guide 12 in the yarn traveling direction. The stretched and twisted yarn Y is heated and heat-set by the first heating device 13 and then cooled by the cooling device 14 . The yarn Y is untwisted on the downstream side of the false twisting device 15 in the yarn traveling direction, but the yarn Y is maintained in a corrugated state by the heat setting described above. The two falsely twisted yarns Y (the yarn Ya and the yarn Yb) are relaxed between the second yarn feeding roller 16 and the third yarn feeding roller 18 and are yarn-dangled by the yarn doubling device 17, or they are not yarn-bundled and are guided downstream in the yarn traveling direction. Furthermore, the yarn Y is heat-set by the second heating device 19 while being relaxed between the third yarn feeding roller 18 and the fourth yarn feeding roller 20 . Finally, the yarn Y (the yarn Yc or the yarns Ya and Yb) fed from the fourth yarn feeding roller 20 is wound by the winding device 21 . Thus, in each winding device 21, one winding package P1 or two winding packages P2 are formed.

(Winding Section Structure) The structure of the winding section 4 is described with reference to Figures 2 and 3(a) and (b). Figure 3(a) illustrates a single winding bobbin Bw and its surrounding structure. Figure 3(b) illustrates a winding body 100 comprising multiple winding bobbins Bw (winding bobbins B2) and a connecting member 60 (described later), and its surrounding structure. The winding section 4 includes multiple winding devices 21. Each winding device 21 is configured to wind a yarn Y onto one or two winding bobbins Bw, as described, for example, in Japanese Patent Application Laid-Open No. 2013-35640. That is, each winding device 21 can select between a single mode and a multiple mode as its operating mode. The single mode is an operating mode in which a single yarn Yc is wound onto a single winding bobbin Bw (winding bobbin B1). The multiple mode is an operating mode in which two yarns Ya and Yb are wound onto two winding bobbins Bw (winding bobbins B2). The winding device 21 includes a fulcrum guide 41 that serves as a fulcrum for the transverse movement of the yarn Y, a transverse movement device 42 that causes the yarn Y to move transversely, a single rocker 43 that rotatably supports the winding bobbin Bw, and a control unit 44 (see Figure 1). Alternatively, for example, a control device (not shown) for controlling the plurality of winding devices 21 may be provided in place of the control unit 44.

As described above, the fulcrum guide 41 serves as the fulcrum for the transverse movement of the yarn Y. For example, three fulcrum guides 41 are provided on each winding device 21, arranged along the length of the machine (see Figure 2 ). For example, when guiding the yarn Y, which has been combined by the combining device 17 to form a single yarn, the yarn Y is hooked onto the central fulcrum guide 41 of the three fulcrum guides (see the left side of Figure 2 ). Furthermore, when guiding the two wires Y that are fed directly without being combined, the wires Y are hung on two of the three support wire guides 41 at both ends (see the right side of the paper in FIG. 2 ).

The transverse device 42 is configured to transversely move the yarn Y using, for example, a transverse guide 45 mounted on an endless belt (not shown) reciprocatingly driven by a motor (not shown). The number of transverse guides 45 mounted on the endless belt can be varied according to the number of yarns Y to be transversely moved. For example, the transverse device 42 that transverses the yarn Y combined into a single yarn by the combining device 17 is provided with a single transverse guide 45 (see the left side of FIG. 2 ). Furthermore, two transverse guides 45 are provided in the transverse device 42 for transversely moving the two yarns Y that have been fed without being combined (see the right side of FIG. 2 ). The range of movement of the transverse guides 45 can be changed according to the number of yarns Y being transversely moved. Information regarding the number of yarns Y to be transversely moved and the range of movement of the transverse guides 45 is stored, for example, in the control unit 44.

The cradle 43 is configured to rotatably support a single bobbin Bw (winding bobbin B1; see Figure 3(a)) for winding the yarn Yc, or a reel 100 (see Figure 3(b)) for winding the yarns Ya and Yb. The reel 100 will now be described in general terms. The reel 100 includes two winding bobbins Bw (winding bobbins B2) and a connecting member 60. In the axial direction of the winding bobbins Bw mounted on the cradle 43 (hereinafter referred to as the "axial direction"), the length of each winding bobbin B2 is less than half the length of the winding bobbin B1. The outer diameter and inner diameter of the winding bobbin B2 are substantially equal to the outer diameter and inner diameter of the winding bobbin B1.

The connecting member 60 is made of, for example, resin. It is configured to connect the two winding tubes B2 so that they are axially aligned. The connecting member 60 includes a base portion 61 and a pair of mounting portions 62 (a first mounting portion 63 and a second mounting portion 64) located on either side of the base portion 61 in the axial direction. The base portion 61 is located at the axial center of the connecting member 60. The base portion 61 is positioned so as to be axially sandwiched between the two winding tubes B2 (winding tubes B2a and B2b). For ease of explanation, the right side of the paper in Figures 3(a) and 3(b) is considered one axial side, and the left side is considered the other axial side. For example, the first mounting portion 63 is axially positioned on one side of the base portion 61. The second mounting portion 64 is axially positioned on the other side of the base portion 61. The first mounting portion 63 and the second mounting portion 64 are each configured to fit within the winding bobbin B2. Thus, by mounting (fixing) the two winding bobbins B2 to the first mounting portion 63 and the second mounting portion 64, respectively, the winding body 100 is formed. The axial length of the winding body 100 is approximately equal to the length of a single winding bobbin B1. Further details of the connecting member 60 will be described later.

The cradle 43 is configured to allow the winding bobbin B1 to be attached and detached, and the winding body 100 to be attached and detached. As shown in Figures 3(a) and 3(b), the cradle 43 includes a pair of bobbin holders 47 (bobbin holders 47a and 47b) for holding the winding bobbin B1 or the winding body 100. The bobbin holders 47a and 47b are rotatably supported by a pair of arms 43a and 43b of the cradle 43. Each bobbin holder 47 includes an insertion portion 48 that is inserted into the winding bobbin B1 or the winding body 100, and a pressing portion 49 that axially presses the insertion portion 48. The pushing portion 49 has a larger diameter than the winding bobbins B1 and B2. The pushing portion 49 is biased axially by, for example, a spring (not shown). A notch (not shown) is formed on the axial side of the pushing portion 49 to guide the yarn radially inward in the Y direction during the yarn hooking operation (described later). (See, for example, Japanese Patent Publication No. 2013-35640).

A contact roller 46 is positioned near the cradle 43. The contact roller 46 applies contact pressure by contacting the surface of a single winding package P1 (formed by winding the yarn Y onto a single bobbin B1 (see FIG. 3(a)) or a dual winding package P2 (formed by winding the yarn Y onto two separate bobbins B2 (see FIG. 3(b))). The contact roller 46 has a generally cylindrical shape with a substantially uniform outer diameter in the axial direction. The contact roller 46 can apply contact pressure to both the single winding package P1 and the dual winding packages P2 (for reasons described below). That is, the contact roller 46 is a common roller that can be used when forming either the single winding package P1 or the two winding packages P2.

The winding bobbin B1 or the winding body 100 supported by the cradle 43 is rotated by, for example, a motor (not shown). With this structure, the contact roller 46, which contacts the surface of the winding package P1 or the winding package P2, rotates by friction while applying contact pressure to the winding package P1 (or the winding package P2). Alternatively, the contact roller 46 can be rotated by a motor (not shown) instead of the motor that rotates the winding bobbin B1 or the winding body 100. According to such a structure, the winding package P1 (or the winding package P2) in contact with the contact roller 46 is driven to rotate due to friction.

The control unit 44 controls the operation of the traverse device 42 and the motor that rotates and drives the winding bobbin B1 (or winding body 100). The control unit 44 is configured to change settings related to the number of yarns Y wound onto the winding device 21. Specifically, the control unit 44 switches the operating mode between a single mode in which a single yarn Y is wound onto a single winding bobbin B1 (see the left side of FIG. 2 ) and a multi-mode in which two yarns Y are wound onto two winding bobbins B2 (see the right side of FIG. 2 ).

In the winding section 4 configured as described above, the yarn Y fed from the fourth yarn feed roll 20 is wound onto the winding bobbin B1 (or winding bobbin B2) by each winding device 21 to form a winding package P1 (or winding package P2). When two yarns Y are combined by the combining device 17, the operating mode of the corresponding winding device 21 is set to the single mode. Furthermore, when the two yarns Y are not combined and are guided downstream in the yarn travel direction, the operating mode of the corresponding winding device 21 is set to the multiple mode. The following mainly describes the structure when executing the majority mode.

(Thread Hanging Device) In this embodiment, a thread hanging device 50 is provided near the winding device 21 (see Figures 4(a), (b) and Figures 5(a)-(c)). Figure 4(a) shows the thread hanging device 50 as viewed from above. Figure 4(b) shows the thread hanging device 50 as viewed from the axial side. Figures 5(a)-(c) illustrate the operation of the thread hanging device 50 when hanging the thread onto the winding bobbin B2.

The yarn hanging device 50 is configured to finish winding the yarn Y onto the reel 100 already mounted on the cradle 43 and then proceed to hang the yarn onto the reel 100 newly mounted on the cradle 43. The yarn hanging device 50 is configured to hang the yarn Y onto each of the two winding bobbins B2. An example of the yarn hanging device 50 is described below. The yarn hanging device 50 includes two yarn hanging portions 51 (hanging portions 51a and 51b) arranged axially. The yarn hanging section 51a is configured to hang the yarn Y (ya) on one axial side onto the winding bobbin B2 (B2a) on that axial side. The yarn hanging section 51b is configured to hang the yarn Y (yb) on the other axial side onto the winding bobbin B2 (B2b) on the other axial side. As shown in Figures 4(a) and (b), each yarn hanging section 51 includes a suction nozzle 52, a yarn taking-up arm 53, a yarn disposing arm 54, a yarn pressing arm 55, a yarn holding arm 56, and a cutter 57 (see Figure 4(a)). Each thread hanging portion 51 is configured to be able to perform an operation of finishing the winding of the yarn in the Y direction on the winding bobbin B2 and to perform an operation of hanging the yarn on a new winding bobbin B2.

The suction nozzle 52 is a member for temporarily sucking and holding the traveling yarn Y that has been falsely twisted by the processing unit 3 after the winding of the yarn Y on a certain winding body 100 is completed and until the threading of the next winding body 100 is completed. The suction nozzle 52 is arranged outside the area where the yarn Y is traversed by the traverse yarn guide 45 (refer to the yarn Y shown by the solid line and the two-dot chain line in FIG. 4(a) ). Each suction nozzle 52 is arranged outside the range in which the yarn Y to be wound around the corresponding winding bobbin B2 is traversed (on the axial side in the present embodiment). The yarn removing arm 53 is configured to move the yarn Y, which is moved laterally by the transverse yarn guide 45, in an axial direction. The yarn removing arm 53 is rotatable about a rotation axis 53a extending in a direction generally perpendicular to the axial direction. A guide member 58 is provided near the rotation axis 53a to guide the yarn Y toward the entrance of the suction nozzle 52. The yarn removing arm 53 can be switched between a retracted position extending in the axial direction (see, for example, FIG. 5(a) ) and a retracted position rotated approximately 90° from the retracted position (see, for example, FIG. 5(b) ). The thread placement arm 54 is configured to position the thread Y, which is held by the suction nozzle 52, approximately directly above the spool 100 (see, for example, FIG5(c)). The thread placement arm 54 of the thread hanging portion 51a and the thread placement arm 54 of the thread hanging portion 51b are configured to rotate integrally about an axially extending rotation axis 54a. The thread pressing arm 55 is configured to press the thread Y against the outer periphery of the spool 100. The wire tensioning arm 55 of the wire hanging portion 51a and the wire tensioning arm 55 of the wire hanging portion 51b are configured to rotate integrally about an axially extending rotation axis 55a. The wire holding arm 56 is configured to sandwich and hold the wire Y between it and the wire tensioning arm 55. The wire holding arm 56 is configured to rotate integrally with the wire disposing arm 54. The cutter 57 is configured to cut the wire Y after it has been axially moved to one side by the wire drawing arm 53. For more details on these components, please refer to, for example, Japanese Patent Publication No. 2013-23385.

The yarn-hanging operation performed by the yarn-hanging device 50 will be briefly described with reference to Figures 5(a) to 5(c). For example, the yarn Y is wound onto two winding bobbins B2 of the winding body 100 mounted on the cradle 43, forming two winding packages P2 (see Figure 5(a)). At this point, the yarn-taking arm 53 is rotated from the retracted position to the take-up position, guiding the yarn Y along the guide member 58 while simultaneously moving it axially. This allows the yarn Y to escape from the transverse yarn guide 45 and be cut by the cutter 57. This completes the winding of the yarn Y onto the reel 100 mounted on the cradle 43. Almost simultaneously, the yarn Y, located upstream of the cutter 57 in the yarn's travel direction, is sucked and captured by the suction nozzle 52 (see Figure 5(b)). After the yarn Y is sucked and captured by the suction nozzle 52, the take-up arm 53 returns to its retracted position. Next, the fully wound winding package P2 is removed from the cradle 43 using, for example, an automatic doffing device (not shown), and the reel 100 with a new, empty winding bobbin B2 is mounted on the cradle 43.

Next, while the yarn Y is being sucked and held by the suction nozzle 52, the yarn placement arm 54 rotates upward (see Figure 5(c)). This places the yarn Y approximately directly above the winding body 100. At this point, the yarn holding arm 56 also rotates integrally with the yarn placement arm 54 (see Figure 5(c)). Furthermore, by rotating the yarn pressing arm 55, the yarn Y, which is located between the yarn placement arm 54 and the suction nozzle 52 in the yarn travel direction, is pressed against the rotating winding bobbin B2 and its surrounding area (see Figure 5(c) and Figure 3(b)). More specifically, the yarn Y (ya) on one axial side is guided radially inward along a notch (not shown) formed in the pressing portion 49 of the bobbin holder 47, and is held between the end surface of the winding bobbin B2a on one axial side and the pressing portion 49. This allows the yarn Ya to be wound onto the winding bobbin B2a. The yarn Y (ya) on the other axial side is captured by the connecting member 60, as described below, and wound onto the rotating winding bobbin B2b.

Furthermore, at least a portion of the components of the thread hanging portion 51b can be configured to be removable from the thread hanging device 50. Thus, when the operating mode of the winding device 21 is switched from the multi-mode to the single-mode, at least a portion of the components of the thread hanging portion 51b can be removed from the thread hanging device 50, leaving only the thread hanging portion 51a for hanging a single thread Y. Alternatively, the entire thread hanging device 50 can be replaced with a thread hanging device dedicated to the single-mode (not shown). Furthermore, the aforementioned thread hanging operation can be performed by an operator, instead of using the thread hanging device 50.

Conventional connecting members (not shown) are designed to capture the yarn Yb in the gap formed between the connecting member and the winding bobbin B2b. However, in recent years, the ability to manufacture thinner yarns Y has led to the following problem: even if the thin yarn Y is once caught in the gap between the conventional connecting member and the winding bobbin B2b, it is difficult to securely hold it there and can easily fall out. This situation can cause the running yarn Y to become unstable, with the yarn Y sometimes tightening and sometimes loosening. If the slack in the thread Y spreads to the upstream side in the thread's travel direction, the thread Y located upstream in the thread's travel direction may not be able to travel properly. Furthermore, the thin thread Y cannot be captured by the gap between the winding bobbin B2b and the conventional connecting member, which may result in a thread-hanging failure. In this embodiment, the connecting member 60 has the structure described below to prevent the thread Y from becoming slack and to reliably capture it. Furthermore, this problem does not occur when the thread Y is captured by the gap between the winding bobbin B2a and the bobbin holder 47. The inventors of the present application have discovered that this may be related to the fact that the thread Y is captured by the notch in the bobbin holder 47.

(Detailed Structure of Connecting Member) Next, the detailed structure of connecting member 60 (particularly the detailed structure of base portion 61) will be described with reference to Figures 6 to 10(b). Figure 6 is a perspective view of base portion 61. Figure 7 is a view of base portion 61 as viewed from a direction perpendicular to the axial direction, as viewed from the direction of arrow VII in Figure 6. Figure 8 is a view of base portion 61 as viewed from a direction perpendicular to the axial direction, as viewed from the direction of arrow VIII in Figure 6. Figure 9(a) is an enlarged view of a portion of base portion 61 shown in Figure 7. Figure 9(b) is an enlarged view of a portion of base portion 61 shown in Figure 8. Figure 10(a) is a cross-sectional view taken along line X(a)-(a) in Figure 8. Figure 10(b) is a cross-sectional view taken along line X(b)-X(b) in Figure 8. In Figures 6 to 8, the base portion 61 is represented by a solid line, the mounting portion 62 (first mounting portion 63 and second mounting portion 64) is represented by a dotted line, and the winding bobbins B2a and B2b are represented by a two-dot dashed line.

In Figures 7 and 8 , the first mounting portion 63 is located on one axial side of the base portion 61 (the right side of the drawing), and the second mounting portion 64 is located on the other axial side of the base portion 61 (the left side of the drawing). For ease of explanation, this orientation of the connecting member 60 is referred to as the "normal orientation" of the connecting member 60. Furthermore, for ease of explanation, when the connecting member 60 is located in the normal orientation, the counterclockwise direction when viewing the connecting member 60 from one axial side is defined as one circumferential side (see Figure 10(a)). Similarly, the clockwise direction is defined as the other circumferential side (see Figure 10(a)). For reference, FIG10(b) is a cross-sectional view of the connecting member 60 viewed from the other side in the axial direction. Therefore, in FIG10(b), the clockwise direction is one circumferential side, and the counterclockwise direction is the other circumferential side.

The base portion 61 is a generally disk-shaped portion. The base portion 61 is radially smaller than the winding bobbins B2a and B2b. In other words, the base portion 61 is radially confined to the inner side of the winding bobbins B2a and B2b.

As shown in Figures 6 to 10(a), the base portion 61 has a pair of blocking portions 66, a guide slit 71 (see Figures 7 to 10(b)), and a capture claw 72. When the connecting member 60 is positioned in its normal orientation, the base portion 61 is configured so that the guide slit 71 can guide the traveling thread Y (thread Yb) radially inward, and the capture claw 72 can capture the thread Yb.

A pair of blocking portions 66 (blocking portions 67, 68) is configured to restrict axial movement of the winding bobbin B2. The blocking portion 67 is formed at the end portion of one axial side of the base portion 61. The blocking portion 67 is located radially outward of the end portion of the first mounting portion 63 on the other axial side. The blocking portion 67 has an inclined surface 67a. The inclined surface 67a is, for example, roughly conical in shape, and its outer diameter becomes smaller toward the other axial side (i.e., farther from the end portion of the base portion 61 on one axial side). The blocking portion 68 (one of the pair of blocking portions of the present invention) is formed at the end portion of the base portion 61 on the other axial side. The blocking portion 68 is located radially outward from the end portion on one axial side of the second mounting portion 64. The blocking portion 68 has an inclined surface 68a. The inclined surface 68a is, for example, substantially conical in shape, with its outer diameter decreasing toward one axial side (i.e., farther from the end portion on the other axial side of the base portion 61 and closer to the guide surface 73 described later). The inclined surfaces 67a and 68a are, for example, straight lines when viewed from a direction perpendicular to the axial direction (see Figures 7 and 8), but are not limited to this. The inclined surface 67a and/or the inclined surface 68a may also have a curved surface when viewed from a direction perpendicular to the axial direction.

The guide slit 71 (see Figures 7 to 10(b)) is a slit used to guide the wire Yb radially inward. The guide slit 71 is formed axially on the inner side (approximately the center) of the base portion 61. More specifically, the guide slit 71 is axially arranged between the blocking portion 67 and the blocking portion 68 (see Figures 8 to 9(b)). The guide slit 71 has a guide surface 73 and an opposing surface 74. The guide surface 73 faces at least one side in the axial direction. The guide surface 73 is formed, for example, in a roughly L-shape. More specifically, as shown in Figure 10(a), the radially outer portion of the guide surface 73 extends circumferentially. The radially outward portion of the guide surface 73 on one circumferential side has a radial gap with the bottom surface 75. The radially outward portion of the guide surface 73 on the other circumferential side extends from the radially outward side to the radially inward side, connecting to the radially inward portion of the bottom surface 75 on the other circumferential side. The guide surface 73 is formed as a portion of the circumferential portion. The guide surface 73 is connected to the inclined surface 68a and is radially arranged inward of the inclined surface 68a (see Figure 10(a)). In other words, the guide surface 73 is arranged radially inward of the radially outermost ends of the pair of blocking portions 66. The guide surface 73 is formed so as to extend radially inward of the capturing claws 72. The opposing surface 74 is arranged to face the other side in the axial direction and is axially opposed to the guide surface 73 (see Figures 8 and 9(b)). The opposing surface 74 is formed into a roughly crescent shape (see Figure 10(b)). The opposing surface 74 is connected to the inclined surface 67a and is arranged radially inward of the inclined surface 67a (see Figure 10(b)). Axially, a bottom surface 75 is formed between the guide surface 73 and the opposing surface 74, connecting the radial inner end of the guide surface 73 and the radial inner end of the opposing surface 74. The bottom surface 75 faces at least radially outward. When viewed axially, the bottom surface 75 is roughly linear. The bottom surface 75 may also be roughly linear. Alternatively, the bottom surface 75 may be slightly curved at both ends as shown in FIG. 10( a ) and ( b ).

The capturing claw 72 is configured to capture the wire Yb after being guided radially inward by the guide surface 73. As shown in Figures 7 to 9, the capturing claw 72 is axially arranged, for example, on the other side of the guide surface 73. The capturing claw 72 is axially arranged, for example, at a position that at least partially overlaps with the blocking portion 68. The capturing claw 72 is circumferentially arranged, for example, at a position at the end of one side of the guide surface 73. The capturing claw 72 has, for example, a receiving surface 76 and a protrusion 77. The receiving surface 76 is configured to receive the traveling wire Yb. The receiving surface 76 is, for example, at least facing one side in the circumferential direction. The protrusion 77 is configured to prevent the wire Yb received by the receiving surface 76 from falling off the receiving surface 76. The protrusion 77 is, for example, a protrusion that protrudes further than the side of the receiving surface 76 facing the circumferential direction. The protrusion 77 is disposed on one axial side of the receiving surface 76. The protrusion 77 has, for example, a substantially planar side surface 77a facing the other axial side and one circumferential side (see Figs. 9(a) and (b)).

Furthermore, the base portion 61 is configured so that it can capture the wire Yb even when the connecting member 60 is arranged in an orientation opposite to the normal orientation (i.e., the orientation after the connecting member 60 is rotated 180° from the normal orientation in a plane parallel to the axis). As shown in Figures 8 and 10(b), the base portion 61 has a spare guide slit 81 and a spare capture claw 82. The spare guide slit 81 and the spare capture claw 82 are arranged at positions different from the guide slit 71 and the capture claw 72 in the circumferential direction. More specifically, the spare guide slit 81 and the spare capture claw 82 are arranged at a position approximately 180° away from the position where the guide slit 71 and the capture claw 72 are formed in the circumferential direction (see Figures 10(a) and (b)). When viewed from a predetermined direction perpendicular to the axial direction, the backup guide slit 81 and the backup capturing claw 82 are formed point-symmetrically with the guide slit 71 and the capturing claw 72 with the axial and radial centers of the base portion 61 as symmetrical points (see FIG. 8 ).

The spare guide slit 81 has a shape substantially identical to that of the guide slit 71. The spare guide slit 81 includes a spare guide surface 83 having a shape substantially identical to that of the guide surface 73, and a spare opposing surface 84 having a shape substantially identical to that of the opposing surface 74. The spare guide surface 83 faces at least one axially opposite side. The spare guide surface 83 is connected to the inclined surface 67a and is radially disposed inwardly of the inclined surface 67a (see FIG. 10( b )). In other words, the spare guide surface 83 is also disposed radially inwardly of the radially outermost ends of the pair of blocking portions 66. The spare opposing surface 84 is disposed so as to face at least one axially opposite side and axially oppose the spare guide surface 83. The backup opposing surface 84 is connected to the inclined surface 68a and is radially disposed inward of the inclined surface 68a (see FIG. 10( a )). Axially, a bottom surface 85 is formed between the backup guide surface 83 and the backup opposing surface 84, connecting the radially inner end of the backup guide surface 83 with the radially inner end of the backup opposing surface 84 (see FIG. 8 ). The shape of the bottom surface 85 is substantially the same as that of the bottom surface 75.

The spare capturing claw 82 has a shape substantially the same as that of the capturing claw 72. As shown in FIG8 , the spare capturing claw 82 is axially arranged, for example, on one side of the spare guide surface 83. The spare capturing claw 82 is axially arranged, for example, at a position at which it at least partially overlaps with the blocking portion 67. The spare capturing claw 82 is circumferentially arranged, for example, at a position at the other side end of the spare guide surface 83. The spare capturing claw 82 has, for example, a spare receiving surface 86 having a shape substantially the same as that of the receiving surface 76 and a spare protrusion 87 having a shape substantially the same as that of the protrusion 77. The spare receiving surface 86 is, for example, directed at least toward the other side in the circumferential direction. The spare protrusion 87 is, for example, a protrusion that protrudes further toward the other side in the circumferential direction than the spare receiving surface 86. The spare protrusion 87 is arranged on the other side in the axial direction of the spare receiving surface 86.

As shown in Figures 10(a) and (b), an outer peripheral surface 91, for example, arranged on a radially outer side than the bottom surface 75, is connected to an end portion on one circumferential side of the bottom surface 75. An outer peripheral surface 92, for example, arranged on a radially outer side than the bottom surface 75, is connected to an end portion on the other circumferential side of the bottom surface 75. The outer peripheral surfaces 91 and 92 are roughly arc-shaped when viewed axially. The outer peripheral surface 91 is connected to an end portion on the other circumferential side of the bottom surface 85. The outer peripheral surface 92 is connected to an end portion on one circumferential side of the bottom surface 85. The bottom surfaces 75 and 85 and the outer peripheral surfaces 91 and 92 are formed approximately at the axial center portion of the base portion 61. The inclined surface 67a (see Figures 9(a) and (b)) is connected to an end portion on one axial side of the outer peripheral surfaces 91 and 92. The outer peripheral surfaces 91 and 92 are connected to the ends on the other side in the axial direction with inclined surfaces 68a (see Figures 9(a) and (b)).

(Threading Method on the Connecting Member) Next, referring to Figures 11(a) to 12(c), the method for hanging multiple threads Y on the winding body 100 described above involves hanging one thread Y from the multiple threads Y on the connecting member 60. More specifically, this description describes the arrangement in which the thread Y (thread Yb) is pressed against the surface of the winding body 100 by the thread hanging device 50 (or an operator) (see Figures 3(b) and 5(c)), and the thread Yb is captured by the connecting member 60. This description assumes that the connecting member 60 is positioned in a normal orientation.

During the threading process, when viewed from a direction perpendicular to the axial direction (see Figures 3(b), 7, and 8), the thread Yb is positioned near the surface of the base portion 61 of the connecting member 60, slightly tilted (towards the left and right directions on the paper) relative to the direction in which the base portion 61 extends (the vertical direction on the paper). Furthermore, as described above, the thread Yb travels toward the suction nozzle 52 (i.e., toward the bottom of the paper, as indicated by the dashed arrows in Figures 11(a) to 12(c)). The winding body 100, which also includes the connecting member 60, rotates to one side in the circumferential direction (see the solid arrows in Figures 11(a) to 12(c)).

When the traveling yarn Yb is pressed against the surface of the rotating winding body 100 (see FIG5(c)), the yarn Yb is guided axially and radially inwardly of the base portion 61 along the inclined surfaces 67a and 68a of the base portion 61 of the connecting member 60 (see FIG11(a)). If the winding body 100 further rotates, the yarn Yb, which is guided radially inward by the inclined surfaces 67a and 68a, is further guided radially inwardly along the guide surface 73 (see FIG11(b)). If the winding body 100 rotates further, the capturing claw 72 will hook onto the wire Yb, and the wire Yb will be captured by the capturing claw 72 (see Figure 11(c) and Figure 12(a)). The wire Yb captured by the capturing claw 72 is received by the receiving surface 76 (see Figure 12(b)). The wire Yb received by the receiving surface 76 is prevented from falling off the receiving surface 76 by the protrusion 77 (more specifically, it is prevented from falling off to one side of the axial direction and radially outward of the wire Yb). In this way, the wire Yb is captured and held by the capturing claw 72. In addition, the wire Yb immediately after being captured by the capturing claw 72 is received only by the receiving surface 76 and can slide relative to the receiving surface 76. Therefore, the yarn Yb is suppressed from being in an unstable state of being tightened and loosened due to the capturing claws 72.

Furthermore, as the winding body 100 rotates, the wire Yb is also guided radially inward by the backup guide slit 81. However, when the connecting member 60 is positioned in its normal orientation, the backup capturing claw 82 rotates in the opposite direction to the direction in which it would hook the wire Yb. Therefore, the backup capturing claw 82 does not inadvertently catch the wire Yb.

As the winding body 100 continues to rotate (see Figure 12(c)), the yarn Yb is wound around the connecting member 60 in multiple overlapping turns, securely held by the connecting member 60. As a result, the portion of the yarn Yb located downstream of the winding body 100 in the yarn travel direction (toward the suction nozzle 52) naturally breaks due to tension. In this manner, the yarn Yb can be wound onto the winding bobbin B2b.

Furthermore, when the connecting member 60 is positioned opposite to its normal orientation, the backup capturing claw 82 is positioned to protrude circumferentially to one side. In this case, the backup guide slit 81 and the backup capturing claw 82 can function instead of the guide slit 71 and the capturing claw 72. Specifically, when the connecting member 60 is positioned opposite to its normal orientation, the backup capturing claw 82 can capture and hold the wire Yb guided radially inward by the backup guide slit 81 (the backup guide surface 83 and the backup opposing surface 84). This prevents the wire Yb from being inadvertently caught by the capturing claw 72.

As described above, by bringing the traveling yarn Yb close to the rotating winding body 100 and then hooking it with the capture claws 72 of the connecting member 60, the yarn Yb can be wound into the capture claws 72 and reliably captured. Furthermore, the guide surface 73 can smoothly guide the yarn Yb radially inward. Therefore, the yarn Yb can reach the capture claws 72 while suppressing any unintended resistance to the yarn Yb. Consequently, the yarn Yb can be reliably captured without slackening.

Furthermore, when the winding body 100 rotates circumferentially to one side, the receiving surface 76 receives the wire Yb and thereby captures the wire Yb. Here, the receiving surface 76 merely receives the wire Yb and does not, for example, clamp the wire Yb to hold it. That is, at least immediately after being received by the receiving surface 76, the wire Yb can slide relative to the receiving surface 76. Therefore, the wire Yb can be prevented from becoming unstable, tightening and loosening, due to the capturing claws 72. Furthermore, the protrusion 77 prevents the wire Yb received by the receiving surface 76 from moving radially outward and falling off the base portion 61. Therefore, the traveling yarn Yb can be stably caught and held.

Furthermore, the wire Yb can be guided radially inwardly securely and stably by the guide slit 71.

Furthermore, when the connecting member 60 is rotated 180° within a plane parallel to the axis, the backup guide surface 83 functions instead of the guide surface 73, and the backup capture claw 82 functions instead of the capture claw 72. This allows the yarn Yb to be properly captured even when the winding body 100 is mounted on the winding device 21 in an orientation opposite to its normal orientation. In other words, the orientation of the connecting member 60 does not need to be considered when mounting the connecting member 60 on the winding device 21. This reduces the effort and time required to consider the orientation of the connecting member 60.

Furthermore, the backup capturing claws 82 are positioned at a different circumferential position than the capturing claws 72. This prevents the base portion 61 from increasing in size in the axial direction, while also allowing the capturing claws 72 and the backup capturing claws 82 to be larger, compared to a situation where all or part of the backup capturing claws 82 are positioned circumferentially overlapping with the capturing claws 72. Consequently, both the capturing claws 72 and the backup capturing claws 82 can be made larger. This achieves both the goal of preventing the connecting member 60 from increasing in size and the goal of preventing failure to capture and/or retain the wire Yb.

Furthermore, the guide surface 73 and the catching claw 72 are positioned radially inward of the radially outer ends of the pair of blocking portions 66. Therefore, by attaching two winding bobbins B2, each having an outer diameter greater than that of the pair of blocking portions 66, to the connecting member 60, the roll 100 can be handled in the same manner as a single winding bobbin B1. In particular, the same contact roller 46 can be used when the winding device 21 is operating in both the multi-mode and the single-mode modes. This saves the effort and time required to replace the contact roller 46 when switching between operating modes.

Furthermore, the traveling yarn Yb can be smoothly guided toward the guide surface 73 by the inclined surface 68a.

Furthermore, in the thread-hanging method of this embodiment, the thread Yb can be reliably caught and held without loosening the thread Yb by allowing the catching claw 72 to catch the thread Yb. Therefore, the success rate of thread-hanging can be improved.

Next, a modified example of the above embodiment will be described. However, for parts having the same structure as the above embodiment, the same symbols are attached and their descriptions are omitted as appropriate.

(1) In the above-described embodiment, the base portion 61 of the connecting member 60 constituting the winding body 100 is sized radially inward relative to the winding bobbins B2a and B2b. However, this is not limiting. The base portion 61 may also be formed to have a radial dimension equal to that of the winding bobbins B2a and B2b. In this case, the contact roller 46 can be shared in both the multi-mode and the single-mode.

Alternatively, the radial dimension of the base portion 61 may be larger than the radial dimension of the winding bobbins B2a and B2b. For example, the guide surface 73 and the catch claws 72 may protrude radially outward relative to the blocking portions 67 and 68. However, in this case, in order to properly apply contact pressure to the winding package P2 in the majority mode, a contact roller (not shown) with a recessed center portion in the axial direction must be used.

(2) In the embodiments described above, the backup guide surface 83 and the backup capturing claw 82 are disposed at positions different from those of the guide surface 73 and the capturing claw 72 in the circumferential direction. However, the present invention is not limited to this. At least a portion of the backup guide surface 83 and the backup capturing claw 82 may be disposed at a position overlapping the guide surface 73 and the capturing claw 72 in the circumferential direction.

(3) In the embodiments described above, one capturing claw 72 and one spare capturing claw 82 are provided on the connecting member 60. However, the present invention is not limited thereto. For example, at least one of the capturing claw 72 and the spare capturing claw 82 may be provided in a plurality. As a specific example, two capturing claws 72 may be arranged in a circumferential direction. Alternatively, a second capturing claw 72 may be provided at a position where a spare opposing surface 84 is formed. Furthermore, the number of capturing claws 72 provided on the connecting member 60 and the number of spare capturing claws 82 may be the same or different from each other.

(4) In the embodiments described above, the connecting member 60 is provided with the auxiliary guide surface 83 and the auxiliary catch 82. However, the present invention is not limited to this. The connecting member 60 may also be provided without the auxiliary guide surface 83 and the auxiliary catch 82. However, in this case, when the reel 100 is mounted on the cradle 43, attention must be paid to the orientation of the reel 100.

(5) In the above-described embodiments, the facing surface 74 is formed on one axial side of the guide surface 73, and the guide slit 71 is formed by the guide surface 73 and the facing surface 74. However, this is not limiting. The facing surface 74 does not necessarily have to be provided.

(6) The shape of the receiving surface 76 is not limited to the above-mentioned shape. For example, the receiving surface 76 may be curved into a concave shape.

(7) The shape of the protrusion 77 is not limited to the above-described shape. The protrusion 77 may also have, for example, a cylindrical shape that protrudes at least in the circumferential direction.

(8) In the above embodiments, the receiving surface 76 and the protrusion 77 are formed separately, but the present invention is not limited to this. For example, the receiving surface 76 does not necessarily need to be formed. In this case, the wire Yb can be received by the side surface 77a of the protrusion 77, for example.

(9) The structure of the catching claw 72 is not limited to the above-described structure. The catching claw 72 may be a mechanism different from the mechanism for clamping the yarn Yb in the gap between the winding bobbin B2 and the base portion 61, as long as it is configured to capture the yarn Yb guided radially inward by the guide surface 73.

(10) In the embodiments described above, bottom surfaces 75, 85 and outer peripheral surfaces 91, 92 are formed in the axial center of the base portion 61. However, the present invention is not limited thereto. A bottom surface (not shown) that is substantially circular when viewed in the axial direction and extends over the entire circumference may also be formed in the axial center of the base portion 61. This bottom surface may also be formed radially inward of the bottom surfaces 75, 85.

(11) The winding device 21 may be configured so that the operation mode for winding the yarn Y can be executed in only the multi-mode.

(12) The winding device 21 may also be configured to be capable of winding the yarn Y onto three or more winding bobbins (not shown). That is, the winding body 100 may have two or more connecting members 60 and three or more winding bobbins (not shown).

(13) The connecting member 60 of the present invention is not limited to the winding device 21 of the false twisting machine 1, but can be applied to various winding devices (not shown) configured to be able to wind two or more yarns (not shown).

1: False twist processing machine 21: Winding device 60: Connecting components 61: Base part 62: Installation Department 66: Blocking Department

68a: Inclined surface

71: Guide slit

72:Capturing Claw

73: Guiding surface

74: Opposite side

76: Connecting surface

77: Protrusion

82: Spare Capture Claw

83: Spare guide surface

91: Outer Surface

92: Outer Surface

100: Coil

B1: Winding Bobbin

B2: Winding Bobbin

Bw: Winding Bobbin

P1: Winding package

P2: Winding package

Pw: Winding package

Y: Silk thread

Ya: Silk thread

Yb: Silk thread

Yc: Silk thread

[Fig. 1] is a side view of a false twisting machine equipped with the winding device according to this embodiment. [Figure 2] is a schematic diagram of the false twisting machine unfolded along the path of the yarn. [Fig. 3] (a) is an explanatory diagram showing a single winding bobbin and its peripheral structure, and (b) is an explanatory diagram showing a winding body having two winding bobbins and its peripheral structure. [Figure 4 (a), (b)] is a schematic diagram of the thread hanging device and its surroundings. [Fig. 5(a)~(c)] are explanatory diagrams showing the operation of the thread hanging device when thread is threaded on the winding bobbin. [Fig. 6] is a perspective view of the base portion of the connecting member. Figure 7 is a view of the base portion as viewed from a direction perpendicular to the axial direction, as viewed in the direction of arrow VII in Figure 6. Figure 8 is a view of the base portion as viewed from a direction perpendicular to the axial direction, as viewed in the direction of arrow VIII in Figure 6. Figure 9 (a) is an enlarged view of a portion of Figure 7, and (b) is an enlarged view of a portion of Figure 8. Figure 10 (a) is a cross-sectional view taken along line X(a)-X(a) in Figure 8, and (b) is a cross-sectional view taken along line X(b)-X(b) in Figure 8. Figures 11 (a)-(c) are explanatory diagrams showing the capture of a thread by a capturing claw. Figures 12 (a)-(c) are explanatory diagrams showing the capture and holding of a thread by a capturing claw.

60: Connecting components

61: Base

62: Installation Department

63: Installation Section 1

64: Installation Section 2

66, 67, 68: Blocking section

67a, 68a: Inclined surface

71: Guide slit

72:Capturing Claw

73: Guiding surface

74: Opposite side

75: Bottom

76: Connecting surface

77: Protrusion

77a: Side

81: Spare guide slit

82: Spare Capture Claw

83: Spare guide surface

84: Opposite side

85: Bottom

86: Spare receiving surface

87: Spare protrusion

91: Outer Surface

100: Coil

B2, B2a, B2b: Winding Bobbins

Y, Yb: Silk thread

Claims (15)

A connecting member is configured to connect two winding bobbins for winding a running thread in a predetermined axial arrangement, and is characterized in that it comprises: a base portion configured to be sandwiched between the two winding bobbins arranged in the axial direction, and a pair of mounting portions configured on both sides of the base portion in the axial direction and configured to be able to mount the two winding bobbins; The base portion includes: a pair of blocking portions disposed in the axial direction between the pair of mounting portions and restricting movement of the two winding bobbins in the axial direction; a guide surface disposed in the axial direction between the pair of blocking portions and guiding the traveling wire toward the radially inner side of the base portion; and a capture claw for capturing the wire guided toward the radially inner side by the guide surface. The connecting member according to claim 1, wherein the capturing claw comprises a receiving surface formed toward at least one circumferential side of the base portion, and a protruding portion that protrudes from the receiving surface toward at least the one circumferential side and prevents the running wire received by the receiving surface from falling off. The connecting member of claim 1, wherein the base portion has a guide slit, the guide slit being formed by the guide surface and an opposing surface disposed opposite the guide surface in the axial direction. The connecting member of claim 2, wherein the base portion has a guide slit formed by the guide surface and an opposing surface disposed opposite the guide surface in the axial direction. The connecting member of claim 1, wherein the guide surface faces at least one side in the axial direction; the capturing claw is disposed on the other side of the guide surface in the axial direction and protrudes toward at least one side in the circumferential direction of the base portion; and the base portion comprises: a backup guide surface facing at least the other side in the axial direction and capable of guiding the traveling wire toward the radial inner side; and a backup capturing claw disposed on the one side of the guide surface in the axial direction and protruding toward at least the other side in the circumferential direction. The connecting member of claim 2, wherein the guide surface faces at least one side in the axial direction; the capturing claw is disposed on the other side of the guide surface in the axial direction and protrudes toward at least one side in the circumferential direction of the base portion; and the base portion comprises: a backup guide surface facing at least the other side in the axial direction and capable of guiding the traveling wire toward the radial inner side; and a backup capturing claw disposed on the one side of the guide surface in the axial direction and protruding toward at least the other side in the circumferential direction. The connecting member of claim 3, wherein the guide surface faces at least one side in the axial direction; the capturing claw is disposed on the other side of the guide surface in the axial direction and protrudes toward at least one side in the circumferential direction of the base portion; and the base portion comprises: a backup guide surface facing at least the other side in the axial direction and capable of guiding the traveling wire toward the radial inner side; and a backup capturing claw disposed on the one side of the guide surface in the axial direction and protruding toward at least the other side in the circumferential direction. The connecting member of claim 4, wherein the guide surface faces at least one side in the axial direction; the capturing claw is disposed on the other side of the guide surface in the axial direction and protrudes toward at least one side in the circumferential direction of the base portion; and the base portion comprises: a backup guide surface facing at least the other side in the axial direction and capable of guiding the traveling wire toward the radial inner side; and a backup capturing claw disposed on the one side of the guide surface in the axial direction and protruding toward at least the other side in the circumferential direction. The connecting structure as described in claim 5, wherein the backup capturing claw is arranged at a position different from the capturing claw in the circumferential direction. The connecting structure as described in claim 6, wherein the backup capturing claw is arranged at a position different from the capturing claw in the circumferential direction. The connecting structure as described in claim 7, wherein the backup capturing claw is arranged at a position different from the capturing claw in the circumferential direction. The connecting structure as described in claim 8, wherein the backup capturing claw is arranged at a position different from the capturing claw in the circumferential direction. The connecting member according to any one of claims 1 to 12, wherein the guide surface and the capturing claw are arranged radially inward of the radially outermost ends of the pair of blocking portions. The connecting member of claim 13, wherein one of the pair of blocking portions has an inclined surface, the inclined surface being connected to the guide surface and being formed such that its outer diameter decreases as it approaches the guide surface in the axial direction. A method for hanging a plurality of running yarns onto a winding body, wherein the winding body comprises a connecting member as described in any one of claims 1 to 14 and two winding bobbins mounted on the connecting member. The method is characterized in that while the winding body is rotated, one of the plurality of yarns is guided radially inward by the guide surface and captured by the capture claw.