CN111996623A

CN111996623A - False twist processing machine

Info

Publication number: CN111996623A
Application number: CN202010310356.0A
Authority: CN
Inventors: 堀本尭幸; 北川重树
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2019-05-27
Filing date: 2020-04-20
Publication date: 2020-11-27
Anticipated expiration: 2040-04-20
Also published as: CN111996623B; EP3744883B1; JP7319089B2; TWI822994B; JP2020193402A; EP3744883A1; TW202043560A; SI3744883T1; EP3889328A1

Abstract

The invention provides a five-axis false twisting device, which is arranged along the longitudinal direction of a machine body and can easily carry out yarn hanging operation. The five-axis false twisting device (15) is provided with a 1 st false twisting part (51) having 1 st individual rotating shafts (72, 73) and a common rotating shaft (71), and a 2 nd false twisting part (52) having 2 nd individual rotating shafts (74, 75) and a common rotating shaft. The 1 st individual rotation axis and the 2 nd individual rotation axis are disposed on opposite sides of the common rotation axis in the longitudinal direction of the body. The 1 st false twist portion is configured to allow the yarn (Y1) to be twisted between the 1 st individual rotary shafts, and the 2 nd false twist portion is configured to allow the yarn (Y2) to be twisted between the 2 nd individual rotary shafts. The 1 st individual rotation shaft (73) is movable between a 1 st operating position and a 1 st yarn-hanging position closer to the body side than the 1 st operating position, and the 2 nd individual rotation shaft (75) is movable between a 2 nd operating position and a 2 nd yarn-hanging position closer to the body side than the 2 nd operating position.

Description

False twist processing machine

Technical Field

The invention relates to a false twisting processing machine.

Background

Patent document 1 describes a false twist processing machine for false twisting a yarn made of synthetic fibers. The false twisting machine is provided with a plurality of false twisting devices which are arranged along the longitudinal direction of a predetermined machine body and respectively apply twist to a plurality of running yarns. As the false twisting device, for example, a triaxial friction type false twisting device (triaxial false twisting device) described in patent document 2 is often used. The three-axis false twisting device has three rotating shafts extending in a predetermined axial direction substantially orthogonal to the longitudinal direction of the machine body, and a plurality of friction disks (disk members) provided on the respective rotating shafts. The axial centers of the three rotational axes form the vertices of a virtual triangle when viewed from the axial direction. When the disk member is rotated in a predetermined direction, a twist is imparted to the yarn running inside the triangle while the disk member is in contact with the disk member.

Here, in order to process more yarns while suppressing the increase in size of the false twisting machine, it is conceivable to provide a five-axis false twisting device having five rotating shafts and capable of imparting twists to two yarns at a time instead of the three-axis false twisting device (see patent document 3). The five-axis false twisting device is provided with a 1 st false twisting part for twisting the 1 st yarn and a 2 nd false twisting part for twisting the 2 nd yarn, and the false twisting parts share one of five rotating shafts as a common rotating shaft. That is, in the five-axis false twisting device, two virtual triangles having the common rotation axis as a common vertex are formed when viewed from the axial direction, and two yarns running inside these triangles are twisted. In this way, with the five-axis false twisting device, the number of rotating shafts can be reduced as compared with a configuration in which two three-axis false twisting devices are provided, and therefore, a larger number of yarns can be processed while suppressing the increase in size of the device.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-141912

Patent document 2: japanese laid-open patent publication No. 62-199826

Patent document 3: japanese laid-open patent publication No. 53-2656

Disclosure of Invention

Problems to be solved by the invention

In the five-axis false twisting device, it is necessary to hang yarn on the 1 st false twisting part and the 2 nd false twisting part. Specifically, the operation of receiving the yarn from between two predetermined rotation axes to the inside of the triangle is required for each of the 1 st and 2 nd false twisting portions. The yarn hanging is generally performed by a worker who is located in a working space extending in the longitudinal direction of the machine body. Here, when one of the 1 st and 2 nd false twisting portions is disposed on a side (back side) farther from the working space than the other, the yarn hooking operation to the back side false twisting portion becomes extremely difficult. Therefore, it is necessary to arrange the 1 st and 2 nd false twisting portions in the longitudinal direction of the machine body so that both of the 1 st and 2 nd false twisting portions face the working space.

Further, in order to yarn the respective false twisting portions, a device configuration is required in which the yarn is passed through between two rotating shafts disposed on the outer side in the longitudinal direction of the machine body (details will be described in the embodiment below). In this configuration, when the yarn is twisted by one of the five-axis false twisting devices, there is a concern that a working space between the other five-axis false twisting device disposed adjacent to the machine body in the longitudinal direction becomes narrow, and the twisting work becomes difficult.

The invention aims to easily perform yarn hanging operation in a false twisting machine with five-axis false twisting devices arranged along the longitudinal direction of a machine body.

Means for solving the problems

A false twist processing machine according to claim 1 is a false twist processing machine including a plurality of five-axis false twist devices capable of imparting a twist to two yarns at a time by a plurality of disk members arranged in a predetermined machine body longitudinal direction, the plurality of disk members being provided on five rotary shafts extending in an axial direction intersecting with the machine body longitudinal direction, each of the five-axis false twist devices having a working space for hanging yarns on the plurality of five-axis false twist devices along the machine body longitudinal direction, the false twist processing machine including: a 1 st false twist unit having two 1 st individual rotation axes and one common rotation axis, which form a virtual 1 st triangle vertex when viewed from the axial direction, among the five rotation axes, and imparting a twist to the 1 st yarn running inside the 1 st triangle; and a 2 nd false twist portion having two 2 nd individual rotation axes and the one common rotation axis, of the five rotation axes, which form a vertex of a virtual 2 nd triangle when viewed from the axial direction, and imparting a twist to the 2 nd yarn running inside the 2 nd triangle, the two 1 st individual rotation axes and the two 2 nd individual rotation axes being disposed on opposite sides of each other with the common rotation axis therebetween in the machine longitudinal direction, the 1 st false twist portion being configured such that the 1 st yarn enters the 1 st triangle from between the two 1 st individual rotation axes and is hung thereon, the 2 nd false twist portion being configured such that the 2 nd yarn enters the 2 nd triangle from between the two 2 nd individual rotation axes and is hung thereon, one of the two 1 st individual rotation axes being a 1 st movable axis, the 1 st movable shaft is disposed closer to a proximal side of the working space than the other of the two 1 st individual rotary shafts and is movable between a 1 st operating position at the time of operating the five-axis false twisting device and a 1 st yarn-hooking position closer to the proximal side than the 1 st operating position, one of the two 2 nd individual rotary shafts is a 2 nd movable shaft, and the 2 nd movable shaft is disposed closer to the proximal side than the other of the two 2 nd individual rotary shafts and is movable between a 2 nd operating position at the time of operating the five-axis false twisting device and a 2 nd yarn-hooking position closer to the proximal side than the 2 nd operating position.

In the five-axis false twisting device, the 1 st individual rotary shaft of the 1 st false twisting part and the 2 nd individual rotary shaft of the 2 nd false twisting part are arranged on opposite sides of a common rotary shaft in the longitudinal direction of the body. In other words, the 1 st and 2 nd false twisting portions are arranged in the longitudinal direction of the machine body. One of the two 1 st individual rotation axes is movable between a 1 st operating position and a 1 st yarn-hanging position closer to the body side than the 1 st operating position. Thus, when the 1 st false twist part is subjected to yarn hanging, the gap between the two 1 st individual rotating shafts can be increased. Therefore, even in a configuration in which a plurality of five-axis false twisting devices are arranged in the longitudinal direction of the machine body, the yarn can be easily hung from the working space. Similarly, since one of the two 2 nd individual rotary shafts is movable between the 2 nd operating position and the 2 nd yarn-hooking position, the gap between the two 2 nd individual rotary shafts can be increased when hooking the yarn to the 2 nd false twist portion. As described above, in the false twisting machine in which the five-axis false twisting devices are arranged in the longitudinal direction of the machine body, the operation of yarn hanging can be easily performed.

The false twist processing machine according to claim 2 is the false twist processing machine according to claim 1, wherein the 1 st movable shaft and the 2 nd movable shaft are swingable about the common rotation shaft as a swing shaft center.

In the configuration in which the distance between the 1 st movable shaft and the 2 nd movable shaft changes when these movable shafts move, for example, when it is desired to interpose a member (belt, gear, or the like) for transmitting power of the drive source between the movable shafts and the common rotary shaft, the following problem occurs. For example, if the distance changes while the belt is interposed, the belt may be loosened or damaged due to excessive tension. Further, if the distance changes with the gear interposed therebetween, the accuracy of the meshing may deteriorate when the gears are reengaged.

In the present invention, since the 1 st movable shaft and the 2 nd movable shaft can swing about the common rotation shaft as the swing shaft center, the movable shaft can be moved without changing the distance between the movable shaft and the common rotation shaft. Therefore, the occurrence of such a trouble can be avoided.

The false twist processing machine according to claim 3 is the false twist processing machine according to claim 1 or 2, characterized in that the 1 st false twist portion includes a 1 st yarn guide, the 1 st yarn guide being disposed on a more upstream side than a disc member on a most upstream side in a 1 st yarn advancing direction in which the 1 st yarn advances, among the plurality of disc members, the 2 nd false twist portion includes a 2 nd yarn guide, the 2 nd yarn guide being disposed on a more upstream side than a disc member on a most upstream side in a 2 nd yarn advancing direction in which the 2 nd yarn advances, among the plurality of disc members, and at least one of the 1 st yarn guide and the 2 nd yarn guide is a movable yarn guide whose position is adjustable with respect to the other.

Generally, in each false twisting portion, a plurality of disk members are arranged so as to describe a spiral. Here, depending on which rotation shaft the most upstream side disc member is provided on in the yarn traveling direction, the yarn path of the 1 st yarn guided by the 1 st yarn guide and the yarn path of the 2 nd yarn guided by the 2 nd yarn guide may vary. In this case, if the yarn path of the 1 st yarn is greatly different from the yarn path of the 2 nd yarn, the twisting method of the 1 st yarn and the twisting method of the 2 nd yarn may be different from each other due to a difference in the bending angle of the yarn or the like, and as a result, the yarn quality of the 1 st yarn and the yarn quality of the 2 nd yarn may be uneven.

In the present invention, by adjusting the position of the movable carrier, the difference between the yarn path of the 1 st yarn guided by the 1 st carrier and the yarn path of the 2 nd yarn guided by the 2 nd carrier can be suppressed to be small. Therefore, the variation in yarn quality between the 1 st yarn and the 2 nd yarn can be suppressed.

The false twist processing machine according to claim 4 is the false twist processing machine according to claim 3, wherein the 1 st yarn guide and the 2 nd yarn guide are arranged in line in the longitudinal direction of the machine body, and the movable yarn guide is movable in a direction intersecting the longitudinal direction of the machine body when viewed in the axial direction.

For example, in a configuration in which one of the 1 st and 2 nd carriers is moved in the longitudinal direction of the machine body, there is a possibility that the movable range is narrowed in order to avoid interference with the other of the 1 st and 2 nd carriers. In the present invention, the yarn path can be effectively adjusted by suppressing interference between the two yarn guides and widening the movable range of the movable yarn guide.

A false twist processing machine according to claim 5 is the false twist processing machine according to any one of the inventions 1 to 4, wherein the five-axis false twist device is configured such that power of a drive source is transmitted to an intermediate shaft, which is one of three fixed rotary shafts, of the five rotary shafts, excluding the 1 st movable shaft and the 2 nd movable shaft, and a common belt for transmitting power of the drive source from the intermediate shaft to the remaining two fixed rotary shafts is provided.

In order to rotationally drive a plurality of rotary shafts by one drive source, it is generally preferable to transmit the power of the drive source by a belt with less noise and vibration. However, if the number of belts is increased simply by the number of rotating shafts, the number of portions of the rotating shafts on which the belts are hooked increases, which leads to a problem that the rotating shafts become long and the device becomes large in the axial direction. In the present invention, since the three fixed rotary shafts can be collectively driven by the common belt, the number of belts can be suppressed to be small. Therefore, the increase in length of the rotating shaft can be suppressed, and the size of the apparatus can be suppressed.

The false twist processing machine according to claim 6 is the false twist processing machine according to claim 5, wherein the intermediate shaft is the common rotating shaft.

According to the positional relationship of the five rotation axes, the common drive shaft is disposed at the midpoint of the five rotation axes in the longitudinal direction of the body. In the present invention, the power of the drive source is first transmitted to the common rotation shaft at the center. Therefore, the five-axis false twisting device can be configured to further transmit power to another rotating shaft disposed around the common rotating shaft. Thus, the configuration for power transmission can be simplified.

A false twist processing machine according to claim 7 is the false twist processing machine according to any one of the inventions 1 to 6, wherein each of the five-axis false twist devices has a common drive source for commonly driving the five rotary shafts, and a balance weight is provided in place of the disk member on one of the five rotary shafts which is not used for processing the yarn.

In the five-axis false twisting device, two twists may be imparted to two yarns at a time by both the 1 st false twisting part and the 2 nd false twisting part, and a twist may be imparted to only one yarn by either the 1 st false twisting part or the 2 nd false twisting part. In this way, when a twist is applied to only one yarn, it is preferable to remove an unnecessary disk member from a rotating shaft that is not used for processing the yarn, from the viewpoint of cost reduction and the like. However, only by simply removing the disk member from a part of the rotary shafts in one of the five-axis false twisting devices, the load on the common drive source of the five-axis false twisting device becomes smaller than the load on the common drive source of the other five-axis false twisting devices. Accordingly, in the five-axis false twisting device in which a part of the disk member is removed, the five rotary shafts are unexpectedly rotated at high speed. As a result, the yarn quality of the yarn processed by the five-axis false twisting device may be greatly different from the yarn quality of the yarn processed by the other five-axis false twisting device.

In the present invention, since the balance weight is provided instead of the unnecessary disk member, the balance weight becomes a load, and the rotation shaft can be prevented from being accidentally rotated quickly. Therefore, by using a member cheaper than the circular plate member as the weight, it is possible to suppress an increase in cost and suppress variation in yarn quality between five-axis false twisting devices.

The false twist processing machine according to claim 8 is the false twist processing machine according to any one of the inventions 1 to 7, wherein the wear resistance of a member forming a contact portion with the yarn, of the circular plate member provided on the common rotating shaft, is higher than the wear resistance of a member forming a contact portion with the yarn, of the circular plate member provided on a rotating shaft other than the common rotating shaft.

A disc member provided on a rotating shaft other than the common rotating shaft is in contact with only the 1 st or 2 nd yarn. On the other hand, a disc member provided on the common rotation shaft is in contact with both the 1 st yarn and the 2 nd yarn. Therefore, the disk member provided on the common rotating shaft may wear earlier than the disk members provided on the other rotating shafts. In this case, only the disk member provided on the common rotating shaft needs to be replaced at an early stage, and the number of replacement steps may increase. In the present invention, since the disk member provided on the common rotating shaft has higher wear resistance than the other disk members, it is possible to suppress early wear of only the disk member provided on the common rotating shaft. Therefore, the need to replace only a part of the disk members early can be avoided.

A false twist processing machine according to claim 9 is the false twist processing machine according to any one of the inventions 1 to 8, characterized in that a disc member of the 1 st false twist portion disposed on the most upstream side in a 1 st yarn advancing direction in which the 1 st yarn advances and a disc member of the 2 nd false twist portion disposed on the most upstream side in a 2 nd yarn advancing direction in which the 2 nd yarn advances are disposed in the same 1 st plane orthogonal to the axial direction, and the disc member of the 1 st false twist portion disposed on the most downstream side in the 1 st yarn advancing direction and the disc member of the 2 nd false twist portion disposed on the most downstream side in the 2 nd yarn advancing direction are disposed in the same 2 nd plane orthogonal to the axial direction.

In the configuration in which the most upstream side disc member in the 1 st yarn running direction and the most upstream side disc member in the 2 nd yarn running direction are arranged to be axially offset from each other, it is necessary to lengthen at least a part of the rotating shaft. As a result, the yarn path of the 1 st yarn and the yarn path of the 2 nd yarn may be changed. If the yarn path of the 1 st yarn is greatly different from that of the 2 nd yarn, the twisting method of the 1 st yarn and the twisting method of the 2 nd yarn are different from each other due to a difference in the bending angle of the yarn, and as a result, the yarn quality of the 1 st yarn and the yarn quality of the 2 nd yarn may be uneven. 2 nd, the device may be enlarged in the axial direction. The same applies to the positional relationship between the disk member on the most downstream side in the 1 st yarn running direction and the disk member on the most downstream side in the 2 nd yarn running direction. In the present invention, the arrangement of the disk member in the axial direction can be made compact without substantially changing the yarn path of the 1 st yarn and the yarn path of the 2 nd yarn. Therefore, the size of the apparatus in the axial direction can be suppressed. In the present invention, the posture of the yarn path of the 1 st yarn and the posture of the yarn path of the 2 nd yarn as viewed in the longitudinal direction of the machine body can be made more nearly the same.

Drawings

Fig. 1 is a side view of a false twist processing machine according to the present embodiment.

FIG. 2 is a schematic view showing a false twist texturing machine being developed along the path of a yarn.

Fig. 3 is a view in direction III of fig. 1.

FIG. 4 is a perspective view of a five axis false twisting device.

FIG. 5 is a view of a five-axis false twisting device as viewed from a direction perpendicular to both the longitudinal direction and the axial direction of the machine body.

Fig. 6 (a) and (b) are views of a five-axis false twisting device for imparting Z twist to a yarn as viewed from the axial direction.

Fig. 7 (a) and (b) are views of a five-axis false twisting device for imparting an S twist to a yarn as viewed from the axial direction.

FIG. 8 (a) is a reference drawing showing the orientation of a five-axis false twisting device, and (b) is a reference drawing concerning the direction of the yarn hanging of the five-axis false twisting device.

Fig. 9 (a) and (b) are explanatory views relating to the movement of the rotation axis.

Fig. 10 (a) is an explanatory view showing the guide support portion, and (b) and (c) are explanatory views showing the yarn path.

Fig. 11 is an explanatory diagram showing a drive mechanism for rotationally driving the rotational shaft.

FIGS. 12 (a) and (b) are explanatory views of a five-axis false twisting device showing a modification example.

FIG. 13 (a) and (b) are explanatory views of a five-axis false twisting device according to another modification.

Description of the reference numerals

1 false twist processing machine

15 five-axis false twisting device

22 working space

51 st false twist part

52 nd false twist part 2

53 rotating shaft

57 circular plate member

61a guide (the 1 st guide)

61b guide (2 nd guide)

71 common rotating shaft (middle shaft, fixed rotating shaft)

72 th 1 st individual axis of rotation (fixed axis of rotation)

73 1 st individual rotating shaft (1 st movable shaft)

74 nd 2 nd individual rotating shaft (fixed rotating shaft)

75 2 nd individual rotating shaft (2 nd movable shaft)

81 disc component

82 circular plate member

83 disc member

84 circular plate member

85 Motor (Driving source, common driving source)

87 belt (shared belt)

110 balance weight

201 triangle 1

202 triangle 2

203 1 st plane

204 nd plane 2

Y yarn

Y1 yarn (the 1 st yarn)

Y2 yarn (No. 2 yarn)

Detailed Description

Next, embodiments of the present invention will be explained. In fig. 1, the vertical direction of the paper surface is defined as the longitudinal direction of the machine body, and the horizontal direction of the paper surface is defined as the width direction of the machine body. The direction orthogonal to both the longitudinal direction and the width direction of the machine body is the vertical direction (vertical direction) in which gravity acts.

(integral constitution of false twist processing machine)

First, the overall structure of the false twist processing machine will be described with reference to fig. 1 to 3. Fig. 1 is a side view of a false twist processing machine 1 according to the present embodiment. FIG. 2 is a schematic view showing the false twist texturing machine 1 being developed along the path (yarn path) of the yarn Y. Fig. 3 is a view in direction III of fig. 1.

The false twist processing machine 1 is configured to be capable of false twisting a yarn Y made of synthetic fibers such as nylon (polyamide fibers). The false twist processing machine 1 includes a yarn feeding unit 2 for feeding a yarn Y, a processing unit 3 for performing false twist processing on the yarn Y fed from the yarn feeding unit 2, and a winding unit 4 for winding the yarn Y processed by the processing unit 3 on a winding bobbin Bw. A plurality of components included in the yarn feeding unit 2, the processing unit 3, and the winding unit 4 are arranged in the machine longitudinal direction perpendicular to the running surface (the paper surface of fig. 1) of the yarn arranged in the yarn path from the yarn feeding unit 2 to the winding unit 4 through the processing unit 3 (see fig. 2).

The yarn feeding section 2 has a creel 7 that holds a plurality of yarns Ps, and feeds a plurality of yarns Y to the processing section 3. The processing section 3 has a structure in which a 1 st yarn feeding roller 11, a twist stop yarn guide 12, a 1 st heating device 13, a cooling device 14, a five-axis false twisting device 15, a 2 nd yarn feeding roller 16, a doubling device 17, a 3 rd yarn feeding roller 18, a 2 nd heating device 19, and a 4 th yarn feeding roller 20 are arranged in this order from the upstream side in the yarn traveling direction. The winding unit 4 winds the yarn Y false-twisted by the working unit 3 around the winding bobbin Bw by the winding device 21 to form a winding package Pw.

The false twist texturing machine 1 has a main body 8 and a take-up table 9 arranged at intervals in the machine width direction. The main body 8 and the winding table 9 extend substantially the same length in the longitudinal direction of the body, and are disposed to face each other. The upper part of the main body 8 and the upper part of the winding table 9 are connected by a support frame 10. The devices constituting the processing section 3 are mainly attached to the main body 8 and the support frame 10. A working space 22 for a worker to perform operations such as yarn hanging on each device is formed by the main body 8, the winding table 9, and the support frame 10. The yarn path is formed such that the yarn Y mainly runs around the working space 22.

The false twist texturing machine 1 has a unit cell called span (english: span) including a pair of a main body 8 and a winding table 9 arranged to face each other. In one span, each device is configured to simultaneously perform false twisting on a plurality of yarns Y running in a state aligned in the longitudinal direction of the machine body. As an example, 12 winding devices 21 (see fig. 3) are provided on one winding table 9. As will be described later, one winding device 21 is configured to be able to simultaneously wind one or two yarns Y. That is, in the present embodiment, a maximum of 24 yarns Y can be wound simultaneously in one span. The false twist texturing machine 1 is configured such that the span is arranged symmetrically with respect to the plane of the drawing with the center line C of the main body 8 in the machine width direction as a symmetry axis (the main body 8 is common to the left and right spans), and a plurality of the spans are arranged in the machine longitudinal direction.

(constitution of processing portion)

Next, the structure of the processing section 3 will be described with reference to fig. 1 and 2.

The 1 st yarn feeding roller 11 feeds the yarn Y fed from the yarn feeding section 2 to the 1 st heating device 13. The 1 st yarn feeding roller 11 is disposed above the winding table 9 (see fig. 1). The 1 st yarn feeding roller 11 is arranged in a row along the longitudinal direction of the machine body. The 1 st yarn feeding roller 11 is configured to be able to feed two yarns Y to the 1 st heating device 13, as shown in fig. 2, for example, but is not limited thereto.

The twist stop guide 12 prevents the twist imparted to the yarn Y by the five-axis false twisting device 15 described later from propagating further upstream in the yarn advancing direction of the twist stop guide 12. The yarn stop guide 12 is disposed on the downstream side in the yarn running direction of the 1 st feed roller 11 and on the upstream side in the yarn running direction of the 1 st heating device 13. The yarn stop guides 12 are provided independently of the plurality of yarns Y supplied from the yarn supply section 2, for example, and are aligned in a line in the longitudinal direction of the machine body.

The 1 st heating device 13 is provided in the support frame 10 (see fig. 1) for heating the yarn Y fed from the 1 st yarn feeding roller 11. The 1 st heating device 13 is provided in plurality for the plurality of yarns Y supplied from the yarn supplying section 2, and is aligned in a row in the longitudinal direction of the machine body. Each of the 1 st heating devices 13 is configured to be able to heat four yarns Y as shown in fig. 2, for example, but is not limited thereto.

The cooling device 14 is used to cool the yarn Y heated by the heating device 13 of the 1 st stage. The cooling device 14 is disposed on the downstream side of the 1 st heating device 13 in the yarn running direction and on the upstream side of the five-axis false twisting device 15 in the yarn running direction. The cooling device 14 is configured to be able to cool the yarn Y by an air flow, as described in, for example, japanese patent application laid-open No. 2011-47074. The plurality of cooling devices 14 are provided for the plurality of yarns Y supplied from the yarn supply portion 2, and are aligned in a row in the machine longitudinal direction. Each cooling device 14 is configured to be able to cool four yarns Y as shown in fig. 2, for example, but is not limited thereto.

The five-axis false twisting device 15 is a type of so-called friction disk type false twisting device, and imparts two twists to the two yarns Y at a time, i.e., the yarn Y1 (the 1 st yarn in the present invention) and the yarn Y2 (the 2 nd yarn in the present invention) in the same direction. The five-axis false twisting device 15 is disposed immediately downstream of the cooling device 14 in the yarn running direction. A plurality of five-axis false twisting devices 15 are arranged in the longitudinal direction of the machine body. Further, only one yarn Y is hooked to the five-axis false twisting device 15 disposed at the end in the longitudinal direction of the machine body (see the five-axis false twisting device 15 at the left end of the drawing sheet of fig. 2). Although not shown, for example, 13 false twisting devices 15 are provided for one span. The five axis false twisting device 15 is described in more detail later.

The 2 nd feed roller 16 is for feeding the yarn Y treated by the five-axis false twisting device 15 to the doubling device 17. The 2 nd feed roller 16 is disposed in an upper portion of the main body 8 (see fig. 1). The 2 nd feeding roller 16 is arranged in a row along the longitudinal direction of the machine body. The 2 nd feed roller 16 is configured to be able to feed two yarns Y to the yarn doubling device 17, as shown in fig. 2, for example, but is not limited thereto. The feed speed of the yarn Y by the 2 nd feed roller 16 is faster than the feed speed of the yarn Y by the 1 st feed roller 11, and the yarn Y is pulled between the 1 st feed roller 11 and the 2 nd feed roller 16.

The yarn doubling device 17 is configured to be able to double the yarn Y1 with the yarn Y2. In the present embodiment, the yarn doubling device 17 can double the yarn Y1 processed by the five-axis false twisting device 15 and the yarn Y2 processed by the five-axis false twisting device 15 disposed adjacent to the five-axis false twisting device 15 in the longitudinal direction of the body, but the invention is not limited thereto. The doubling device 17 is disposed below the 2 nd yarn feeding roller 16 (see fig. 1). The doubling device 17 has two interlacing jets 31, 32 (see fig. 2). The yarn doubling device 17 performs, for example, doubling by injecting air into the yarn Y1 and the yarn Y2 (see the left part of the drawing sheet in fig. 2) passing through the inside of the interlacing nozzle 31 and interlacing the yarn Y1 and the yarn Y2 with the air flow. The yarn doubling device 17 may be configured to guide the two yarns Y directly to the downstream side in the yarn traveling direction without doubling the yarn Y1 with the yarn Y2. In this case, the yarn Y1 passes through the inside of the interlace nozzle 31, and the yarn Y2 passes through the inside of the interlace nozzle 32 (see the right part of the drawing sheet in fig. 2).

The 3 rd feed roller 18 is for feeding the yarn Y traveling on the downstream side in the yarn traveling direction from the yarn doubling device 17 to the 2 nd heating device 19. The 3 rd yarn feeding roller 18 is disposed below the doubling device 17 (see fig. 1). The 3 rd feeding roller 18 is arranged in a row along the longitudinal direction of the machine body. The 3 rd yarn feeding roller 18 is configured to feed two yarns Y to the 2 nd heating device 19 as shown in fig. 2, for example, but is not limited thereto. The feed speed of the yarn Y by the 3 rd feed roller 18 is slower than the feed speed of the yarn Y by the 2 nd feed roller 16, and the yarn Y is slackened between the 2 nd feed roller 16 and the 3 rd feed roller 18.

The 2 nd heating device 19 is used for heating the yarn Y fed from the 3 rd feeding roller 18. The 2 nd heating device 19 is disposed below the 3 rd yarn feeding roller 18 (see fig. 1). The 2 nd heating device 19 extends in the vertical direction, and is provided one for each span.

The 4 th yarn feeding roller 20 is for feeding the yarn Y heated by the 2 nd heating device 19 to the winding device 21, and is disposed below the working space 22 (see fig. 1). The 4 th yarn feeding roller 20 is arranged in a row along the longitudinal direction of the machine body. The 4 th yarn feeding roller 20 is configured to be able to feed two yarns Y to the winding device 21, as shown in fig. 2, for example, but is not limited thereto. The yarn Y is fed at a slower speed by the 4 th feed roller 20 than by the 3 rd feed roller 18, and is slackened between the 3 rd feed roller 18 and the 4 th feed roller 20.

In the working section 3 configured as described above, the yarn Y stretched between the 1 st feed roller 11 and the 2 nd feed roller 16 is twisted two by one five-axis false twisting device 15. The twist made by the five-axis false twisting device 15 propagates to the yarn stop guide 12, but does not propagate to the upstream side of the yarn advancing direction of the yarn stop guide 12. The yarn Y stretched and twisted is heated by the 1 st heating device 13 to be heat-set, and then cooled by the cooling device 14. The yarn Y is untwisted downstream of the five-axis false twisting device 15, but the single fibers are maintained in a state of being false twisted into a wavy form by the heat setting described above. The two yarns Y (yarn Y1 and yarn Y2) false-twisted by the five-axis false twisting device 15 are slackened between the 2 nd yarn supplying roller 16 and the 3 rd yarn supplying roller 18, and are guided to the downstream side in the yarn advancing direction after being combined by the yarn combining device 17 or without being combined. Further, the yarn Y is slackened between the 3 rd yarn feeding roller 18 and the 4 th yarn feeding roller 20, and is heat-set by the 2 nd heating device 19. Finally, the yarn Y fed from the 4 th yarn feeding roller 20 is wound by the winding device 21 to form a winding package Pw.

(constitution of winding part)

Next, the structure of the winding unit 4 will be described with reference to fig. 2 and 3. The winding unit 4 includes a plurality of winding devices 21 for winding the yarn Y around the winding bobbin Bw. Each winding device 21 is configured to be capable of winding the yarn Y around one or two winding bobbins Bw, as described in, for example, japanese patent application laid-open No. 2009-74219. Each of the winding devices 21 includes a fulcrum guide 41 serving as a fulcrum when the yarn Y is traversed, a traverse device 42 for traversing the yarn Y, a single cradle 43 for rotatably supporting the winding bobbin Bw, and a control unit 44 (see fig. 3).

As described above, the fulcrum guide 41 is a guide that serves as a fulcrum when the yarn Y is traversed. For example, three fulcrum guides 41 are provided in each of the winding devices 21 so as to be aligned in the longitudinal direction of the machine body (see fig. 2). For example, when guiding the yarn Y doubled by the doubling device 17 to be one yarn, the yarn Y is hooked on the fulcrum guide 41 arranged at the center of the three fulcrum guides (see the left part of the drawing sheet of fig. 2). When the two yarns Y that have not been doubled but have been sent as they are guided, the yarns Y are hooked to the two fulcrum guides 41 at both ends of the three fulcrum guides 41 (see the right part of the drawing sheet of fig. 2).

The traverse device 42 is configured to be able to traverse the yarn Y by a traverse guide 45 attached to an endless belt driven to reciprocate by a motor, for example. The number of traverse guides 45 attached to the endless belt can be changed according to the number of traversed yarns Y. For example, the traverse device 42 for traversing the yarn Y that is doubled by the doubling device 17 to become one yarn is provided with one traverse guide 45 (see the left part of the drawing sheet of fig. 2). Further, the traverse device 42 for traversing the two yarns Y that have not been combined but have been fed as they are is provided with two traverse guides 45 (see the right part of the drawing sheet in fig. 2). The moving range of the traverse guide 45 can be changed according to the number of the traversed yarns Y. Information related to settings such as the number of yarns Y to be traversed and the movement range of the traverse guide 45 is stored in the control unit 44, for example.

The cradle 43 is configured to be able to rotatably support 1 or more (1 or 2) winding bobbins Bw (winding packages Pw). In other words, the cradle 43 can switch the state between the state of supporting one winding bobbin Bw and the state of supporting two winding bobbins Bw. The cradle 43 is provided with one winding device 21. Further, a contact roller 46 that contacts the surface of the winding package Pw is disposed immediately upstream of the winding package Pw in the yarn traveling direction. The winding bobbin Bw supported by the cradle 43 is rotationally driven by, for example, a motor not shown. In this configuration, the contact roller 46 that contacts the surface of the winding package Pw is driven to rotate by friction, and applies a contact pressure to the winding package Pw. Alternatively, instead of rotationally driving the winding bobbin Bw by a motor, the contact roller 46 may be rotationally driven by a motor, not shown. In this configuration, the winding package Pw in contact with the contact roller 46 is driven to rotate by friction.

The control section 44 controls the operation of the traverse device 42 and the operation of the motor that rotationally drives the winding bobbin Bw. The controller 44 is configured to be able to change the setting regarding the number of yarns Y wound around the winding device 21. That is, the control unit 44 can switch the operation mode between the 1 st mode in which one yarn Y is wound around one winding bobbin Bw (see the left part of the drawing sheet of fig. 2) and the 2 nd mode in which two yarns Y are wound around two winding bobbins Bw (see the right part of the drawing sheet of fig. 2).

In the winding unit 4 configured as described above, the yarn Y fed from the 4 th yarn feeding roller 20 is wound on the winding bobbin Bw by each winding device 21 to form a winding package Pw. When the two yarns Y are combined by the combining device 17, the operation mode of the corresponding winding device 21 is set to the 1 st mode. When the two yarns Y are not merged but are guided to the downstream side in the yarn running direction as they are, the operation mode of the corresponding winding device 21 is set to the 2 nd mode.

(constitution of false twisting device)

Next, the structure of the five-axis false twisting device 15 will be described with reference to fig. 4 to 7. FIG. 4 is a perspective view of the five axis false twisting device 15. Fig. 5 is a view of the five-axis false twisting device 15 viewed from a direction perpendicular to both the longitudinal direction of the machine body and the axial direction (hereinafter simply referred to as axial direction) of a rotary shaft 53 described later. Fig. 6 (a) and (b) are views of the five-axis false twisting device 15 for imparting Z twist to the yarn Y as viewed from the axial direction. Fig. 7 (a) and (b) are views of the five-axis false twisting device 15 for imparting the S twist to the yarn Y as viewed from the axial direction. In fig. 6 (b) and 7 (b), a disk member 57 described later is shown by a two-dot chain line in order to make the support bases 54 to 56 described later visible. One side and the other side in the longitudinal direction of the machine body are defined as shown in fig. 4 to 7. In the five-axis false twisting device 15, the side close to the working space 22 (see fig. 1) is defined as the near side (see fig. 1, 4, 6, and 7), and the side far from the working space 22 is defined as the far side (see fig. 4, 6, and 7). In fig. 6 (a) to 7 (b), the guide 61 to be described later is not shown.

The five-axis false twisting device 15 is configured to twist two yarns Y (yarn Y1 and yarn Y2) at a time in the same direction (perform Z-twist or S-twist). That is, as shown in fig. 4 to 7, the five-axis false twisting device 15 is provided with a 1 st false twisting part 51 for imparting a twist to the yarn Y1 and a 2 nd false twisting part 52 for imparting a twist to the yarn Y2. A plurality of five-axis false twisting devices 15 are arranged in the longitudinal direction of the body (see fig. 2).

As shown in fig. 4 to 7, the five-axis false twisting device 15 includes five rotary shafts 53, support bases 54, 55, and 56, a plurality of disk members 57, a drive mechanism 58, and yarn guides 61, 62, and 63 as components constituting the 1 st false twisting part 51 and the 2 nd false twisting part 52. The five rotary shafts 53 (the common rotary shaft 71, the 1 st

individual rotary shafts

72, 73, and the 2 nd individual rotary shafts 74, 75) are shaft members extending in an axial direction substantially orthogonal to the longitudinal direction of the machine body. In addition, the axial direction may not necessarily be substantially orthogonal to the longitudinal direction of the housing. Of the five rotary shafts 53, a common rotary shaft 71 disposed at the center in the longitudinal direction of the machine body and two 1 st

individual rotary shafts

72, 73 disposed on one side of the common rotary shaft 71 in the longitudinal direction of the machine body are included in the 1 st false twist portion 51. The common rotating shaft 71 and two 2 nd individual

rotating shafts

74, 75 disposed on the other side of the common rotating shaft 71 in the longitudinal direction of the machine body are included in the 2 nd false twist portion 52. In other words, the common rotation shaft 71 is shared by the 1 st false twist portion 51 and the 2 nd false twist portion 52. As shown in fig. 6a and 7 a, the rotation axis 53 is disposed such that the axis center forms the vertexes of two virtual regular triangles (the 1 st triangle 201 and the 2 nd triangle 202) when viewed from the axial direction. The common rotation axis 71 and the 1 st individual rotation axes 72, 73 form the apex of the 1 st triangle 201. The common rotation axis 71 and the 2 nd individual rotation axes 74, 75 form the vertex of the 2 nd triangle 202. The 1 st

individual rotation shafts

72, 73 and the 2 nd

individual rotation shafts

74, 75 are disposed on opposite sides of the common rotation shaft 71 in the longitudinal direction of the body.

The support tables 54, 55, and 56 are tables that rotatably support the rotating shaft 53 via bearings, not shown. The support base 54 rotatably supports the 1 st individual rotation shaft 72, which is arranged on the back side, of the common rotation shaft 71 and the 1 st

individual rotation shafts

72 and 73, and the 2 nd individual rotation shaft 74, which is arranged on the back side, of the 2 nd

individual rotation shafts

74 and 75. The support base 55 is attached to the support base 54 and disposed on the proximal side of the support base 54, and rotatably supports the 1 st individual rotation shaft 73 on the proximal side in a cantilever manner. The support base 56 is attached to the support base 54 and disposed on the proximal side of the support base 54, and rotatably supports the 2 nd individual rotation shaft 75 on the proximal side in a cantilever manner. In fig. 4 and 5, the upper side of the drawing sheet is the tip side in the axial direction, and the lower side of the drawing sheet is the base side in the axial direction. The yarn Y runs from the tip side to the base end side in the axial direction of the rotary shaft 53. That is, the tip side in the axial direction is the upstream side in the yarn traveling direction. The base end side in the axial direction is the downstream side in the yarn running direction. The traveling direction of the yarn Y1 is defined as the 1 st yarn traveling direction, and the traveling direction of the yarn Y2 is defined as the 2 nd yarn traveling direction (see fig. 5). The proximal end side portions of the support bases 54, 55, 56 in the axial direction are

covers

54a, 55a, 56a (see fig. 4 and 5) covering a part of the drive mechanism 58, respectively.

The plurality of disc members 57 are attached to the respective rotating shafts 53, and impart a twist to the yarn Y by coming into contact with the yarn Y. In the present embodiment, for the sake of simplifying the explanation, the disk members 57 are attached to all the rotary shafts 53 of all the five-axis false twisting devices 15. In the present embodiment, three or four disk members 57 (see fig. 4 and the like) are attached to each rotating shaft 53, but the number of disk members 57 attached to each rotating shaft 53 is not limited to this.

First, among the plurality of disk members 57, the plurality of disk members 57 attached to the common rotation shaft 71 and the 1 st

individual rotation shafts

72 and 73 are included in the 1 st false twist portion 51 and arranged so as to draw a spiral extending in the axial direction. The direction of the spiral described by the disk member 57 is determined by the direction of the twist applied to the yarn Y. That is, when the five-axis false twisting device 15 (the five-axis false twisting device 15a, see fig. 6 (a) and (b)) that Z-twists the yarn Y is viewed from the tip end side in the axial direction, the disk member 57 of the 1 st false twisting portion 51 is disposed so as to spirally draw counterclockwise. On the other hand, when the five-axis false twisting device 15 (the five-axis false twisting device 15b, see fig. 7 (a) and (b)) which performs the S-twist on the yarn Y is viewed from the tip end side in the axial direction, the disk member 57 of the 1 st false twisting portion 51 is arranged so as to draw a spiral clockwise.

The disk member 57 attached to the common rotation shaft 71 and the 2 nd

individual rotation shafts

74 and 75 is included in the 2 nd false twist portion 52 and is disposed so as to draw a spiral extending in the axial direction. The direction of the spiral described by the disk member 57 included in the 2 nd false twist portion 52 is the same as the direction of the spiral described by the disk member 57 included in the 1 st false twist portion 51.

As shown in fig. 5, the disk member 57 (disk member 81) disposed on the most upstream side in the 1 st yarn advancing direction of the 1 st false twist portion 51 and the disk member 57 (disk member 82) disposed on the most upstream side in the 2 nd yarn advancing direction of the 2 nd false twist portion 52 are disposed in the same 1 st plane 203 orthogonal to the axial direction. In other words, the position in the axial direction of the disk member 81 and the position in the axial direction of the disk member 82 are substantially the same. The disk member 57 (disk member 83) disposed on the most downstream side in the 1 st yarn advancing direction of the 1 st false twist portion 51 and the disk member 57 (disk member 84) disposed on the most downstream side in the 2 nd yarn advancing direction of the 2 nd false twist portion 52 are disposed on the same 2 nd plane 204 orthogonal to the axial direction. In other words, the position in the axial direction of the disk member 83 and the position in the axial direction of the disk member 84 are substantially the same. This can prevent the rotation shaft 53 from becoming longer, as compared with the case where the positions of the

disk members

81 and 82 in the axial direction are different from each other or the positions of the

disk members

83 and 84 in the axial direction are different from each other.

The disk member 57 of the 1 st false twist portion 51 and the disk member 57 of the 2 nd false twist portion 52 are disposed in point symmetry with respect to each other about the common rotation axis 71 as a center of symmetry when viewed in the axial direction. Specifically, in the five-axis false twisting device 15a (see fig. 6 (a) and (b)), the disk member 81 of the 1 st false twisting part 51 is attached to the 1 st individual rotating shaft 73 on the proximal side, and the disk member 82 of the 2 nd false twisting part 52 is attached to the 2 nd individual rotating shaft 74 on the rear side.

The contact portions of the plurality of circular plate members 57 and the yarn Y are formed of, for example, polyurethane. In the present embodiment, at least one disc member 57 made of polyurethane is attached to each rotating shaft 53 at the portion in contact with the yarn Y. However, it is known that the disk members 57 (disk members 81, 82) that the yarn Y traveling first contacts and the disk members 57 (disk members 83, 84) that the yarn Y traveling last contacts are generally easily worn. Therefore, the contact portions of the

disk members

81, 82, 83, and 84 with the yarn Y are formed of, for example, ceramics, which is a member having higher abrasion resistance than polyurethane. Thereby, wear of the

disk members

81, 82, 83, 84 is suppressed. However, the present invention is not limited to this, and all the contact portions of the circular plate member 57 with the yarn Y may be formed of polyurethane.

The drive mechanism 58 is a mechanism for rotationally driving the five rotational shafts 53 in the same direction. The drive mechanism 58 includes a motor 85 (see fig. 4, the drive source and the common drive source of the present invention),

belts

86, 87, 88, and 89 (see fig. 5) for transmitting power of the motor 85 to the respective rotation shafts, and the like. The drive mechanism 58 of the five-axis false twisting device 15 (five-axis false twisting device 15a) for imparting Z twist to the yarn Y rotates the rotary shaft 53 counterclockwise when viewed from the tip side in the axial direction (see arrows of (a) and (b) of fig. 6). The drive mechanism 58 of the five-axis false twisting device 15 (five-axis false twisting device 15b) for subjecting the yarn Y to S-twist drives the rotary shaft 53 to rotate clockwise when viewed from the tip side in the axial direction (see arrows of (a) and (b) of fig. 7). The drive mechanism 58 is described in more detail later.

As shown in fig. 5, two yarn guides 61, 62, and 63 are provided corresponding to the 1 st false twist portion 51 and the 2 nd false twist portion 52, respectively. First, the yarn guide 61 (yarn guide 61 a. the 1 st yarn guide of the present invention) of the 1 st false twist portion 51 is disposed on the upstream side in the 1 st yarn traveling direction of the disk member 81. The yarn guide 62 (yarn guide 62a) of the 1 st false twist portion 51 is disposed immediately downstream of the disc member 83 in the 1 st yarn traveling direction. The yarn guide 63 (yarn guide 63a) of the 1 st false twist portion 51 is disposed on the downstream side of the yarn guide 62a in the 1 st yarn traveling direction and fixed to one end portion of the support base 55 in the machine longitudinal direction. Further, the yarn guide 61 (yarn guide 61 b. the 2 nd yarn guide of the present invention) of the 2 nd false twist portion 52 is disposed on the upstream side in the 2 nd yarn traveling direction of the disk member 82. The yarn guide 62 (yarn guide 62b) of the 2 nd false twist portion 52 is disposed immediately downstream of the disc member 84 in the 2 nd yarn traveling direction. The yarn guide 63 (yarn guide 63b) of the 2 nd false twist portion 52 is disposed on the downstream side of the yarn guide 62b in the 2 nd yarn traveling direction and fixed to the other end portion of the support table 56 in the machine longitudinal direction.

In the five-axis false twisting device 15 having the above-described configuration, the yarn Y is arranged so as to draw the following path (yarn path). As shown in fig. 5, first, the yarn Y1 is arranged to draw a spiral while contacting the plurality of disc members 57 of the 1 st false twist portion 51 via the yarn guide 61 a. The yarn Y1 that has contacted the disc member 57 is arranged to fall inside the 1 st triangle 201 when viewed from the axial direction (see fig. 6 a), and to travel inside the 1 st triangle 201. The yarn Y1 then travels downstream in the 1 st yarn traveling direction via the yarn guides 62a and 63 a. The yarn Y2 is arranged to be in contact with the plurality of disc members 57 of the 2 nd false twist portion 52 via the yarn guide 61b and to describe a spiral. The yarn Y2 that has contacted the circular plate member 57 is arranged to fall inside the 2 nd triangle 202 when viewed from the axial direction (see fig. 6 (a)), and to travel inside the 2 nd triangle 202. The yarn Y2 then travels downstream in the 2 nd yarn traveling direction via the yarn guides 62b and 63 b.

While the yarn Y is thus being advanced, the five rotary shafts 53 are rotationally driven in the same direction by the drive mechanism 58, and a twist is imparted to the yarn Y that is in contact with the rotating disc member 57. Specifically, in the five-axis false twisting device 15a for Z twisting (see fig. 6 (a) and (b)), Z twisting is imparted to both the yarn Y1 and the yarn Y2. In the five-axis false twisting device 15b for the S twist (see fig. 7 (a) and (b)), the S twist is applied to both the yarn Y1 and the yarn Y2.

However, in the five-axis false twisting device 15, it is necessary to thread the 1 st false twist portion 51 and the 2 nd false twist portion 52. Specifically, it is necessary to insert the yarn Y1 into the 1 st triangle 201 from between the two predetermined rotation shafts 53, and further to hook the yarn Y1 to the

guides

61, 62, 63. Further, it is necessary to feed the yarn Y2 from between the two predetermined rotating shafts 53 to the inside of the 2 nd triangle 202, and further to hook the yarn Y2 to the

guides

61, 62, 63. The yarn hanging is performed by an operator located in the working space 22 (see fig. 1). If one of the 1 st and 2 nd

false twisting parts

51 and 52 is arranged on the back side (the side far from the working space 22) of the other as shown in the reference diagram of fig. 8 a, the yarn hooking operation to the false twisting part on the back side (the 2 nd false twisting part 52 in fig. 8 a) becomes extremely difficult. Therefore, it is necessary to arrange the 1 st and 2 nd

false twisting parts

51 and 52 in the longitudinal direction of the machine body so that both the 1 st and 2 nd

false twisting parts

51 and 52 face the working space 22 (see fig. 8 (b) for reference).

As described above, the disk member 57 of the 1 st false twist portion 51 and the disk member 57 of the 2 nd false twist portion 52 are disposed in point symmetry with each other when viewed from the axial direction. In this configuration, three methods are conceivable as the method of hanging the yarn on the disk member 57 as shown in fig. 8 (b). The 1 st method is a method of twisting yarn from the near side to the 1 st false twist portion 51 and from the far side to the 2 nd false twist portion 52 as shown in the left part of the drawing sheet of fig. 8 (b) (see

arrows

205 and 206 of fig. 8 (b)). The 2 nd method is a method of twisting the yarn from the back side to the 1 st false twist portion 51 and from the near side to the 2 nd false twist portion 52 as shown in the central part of the paper surface of fig. 8 (b) (see

arrows

207 and 208 of fig. 8 (b)). The 3 rd method is a method of, as shown in the right part of the drawing sheet of fig. 8 (b), threading the yarn from one side in the longitudinal direction of the body to the 1 st false twist portion 51 and threading the yarn from the other side in the longitudinal direction of the body to the 2 nd false twist portion 52 (see

arrows

209 and 210 of fig. 8 (b)). In order to find another yarn threading method, it is also conceivable to arrange the disk members 57 of the 1 st false twist portion 51 and the 2 nd false twist portion 52 so as not to be point-symmetric with each other, but in reality, such an arrangement is difficult to adopt for the following reasons. That is, when the disk member 57 of the 1 st false twist portion 51 and the disk member 57 of the 2 nd false twist portion 52 are not point-symmetrical with each other, the position in the axial direction of the disk member 57 of the 1 st false twist portion 51 and the position in the axial direction of the disk member 57 of the 2 nd false twist portion 52 are deviated from each other. In this case, the yarn path of the yarn Y1 and the yarn path of the yarn Y2 are greatly different from each other, which may cause unevenness in yarn quality, and the problem of an increase in size of the apparatus due to an increase in length of the rotary shaft 53. For these reasons, it is actually required to arrange the disk member 57 of the 1 st false twist portion 51 and the disk member 57 of the 2 nd false twist portion 52 in point symmetry with each other.

In addition, the methods 1 and 2 among the three methods described above are difficult to adopt because of the difficulty in yarn hanging from the back side. Thus, the five-axis false twisting device 15 is required to be configured to be able to apply the 3 rd method. More specifically, the five-axis false twisting device 15 according to the present embodiment is configured such that the yarn Y1 is twisted between the two 1 st

individual rotary shafts

72 and 73, and the yarn Y2 is twisted between the two 2 nd individual

rotary shafts

74 and 75. However, in this configuration, when the yarn is threaded onto one of the five-axis false twisting devices 15, the working space between the five-axis false twisting device 15 and another five-axis false twisting device 15 disposed adjacent to each other in the longitudinal direction of the body may be narrowed (see fig. 8 (b)), and the thread threading operation may become difficult. Therefore, in the present embodiment, the five-axis false twisting device 15 has the following configuration in order to facilitate the yarn threading operation.

(detailed construction of five-axis false twisting device)

The detailed structure of the five-axis false twisting device 15 will be described with reference to (a) and (b) of fig. 9. FIG. 9 (a) is an explanatory view showing the five-axis false twisting device 15 in which the 1 st individual rotary shaft 73 is located at the 1 st operating position (described later) and the 2 nd individual rotary shaft 75 is located at the 2 nd operating position (described later). FIG. 9 (b) is an explanatory view showing the five-axis false twisting device 15 in which the 1 st individual rotary shaft 73 is located at the 1 st yarn-laying position (described later) and the 2 nd individual rotary shaft 75 is located at the 2 nd yarn-laying position (described later).

The support base 55, which rotatably supports the 1 st individual rotation shaft 73 (one aspect of the present invention and the 1 st movable shaft) disposed on the proximal side of the 1 st

individual rotation shafts

72 and 73, is swingably attached to the support base 54 with the shaft center of the common rotation shaft 71 as a swing shaft center. In other words, the support stand 54 and the support stand 55 can be opened and closed like a hinge, for example. Thus, the 1 st individual rotary shaft 73 can move between an operating position (the 1 st operating position, see fig. 9 (a)) when the five-axis false twisting device 15 is operated (when a twist is applied to the yarn Y) and a yarn hooking position (the 1 st yarn hooking position, see fig. 9 (b)) which is closer to the body side than the 1 st operating position. Therefore, the gap between the two 1 st individual

rotating shafts

72, 73 can be increased at the time of yarn hanging. Therefore, even in a configuration in which a plurality of five-axis false twisting devices 15 are arranged in the longitudinal direction of the machine body, the yarn Y1 can be easily hung from the working space 22 (see arrow 211 in fig. 9 (b)). More specifically, the 1 st individual rotation shaft 73 can change the distance from the 1 st individual rotation shaft 72 while keeping the distance from the common rotation shaft 71 constant when viewed from the axial direction. Similarly, the support base 56 that rotatably supports the 2 nd individual rotation shaft 75 (one aspect of the present invention and the 2 nd movable shaft) disposed on the proximal side of the 2 nd

individual rotation shafts

74 and 75 is swingably attached to the support base 54 with the shaft center of the common rotation shaft 71 as the swing shaft center. Thus, the 2 nd individual rotary shaft 75 can move between an operating position (the 2 nd operating position, see fig. 9 (a)) when the five-axis false twisting device 15 operates and a yarn-hooking position (the 2 nd yarn-hooking position, see fig. 9 (b)) which is closer to the body side than the 2 nd operating position. This makes it possible to increase the gap between the two 2 nd individual

rotating shafts

74, 75 when the yarn is being hung. Therefore, even in a configuration in which a plurality of five-axis false twisting devices 15 are arranged in the longitudinal direction of the machine body, the yarn Y2 can be easily hung from the working space 22 (see arrow 212 in fig. 9 (b)). In this way, the yarn threading operation of the five-axis false twisting device 15 can be easily performed. The support bases 54, 55, and 56 may rotatably support the common rotating shaft 71 via bearings, not shown.

When the 1 st individual rotary shaft 73 and the 2 nd individual rotary shaft 75 are moved from the operating positions to the yarn hooking positions, the rotary shafts 53 thereof are moved toward the proximal side and toward the inner side (the common rotary shaft 71 side) in the longitudinal direction of the body of the five-axis false twisting device 15. Therefore, even in the yarn hanging operation, interference between the five-axis false twisting devices 15 adjacent to each other in the longitudinal direction of the body can be avoided. In other words, it is not necessary to widen the interval between the five-axis false twisting devices 15 in order to allow the 1 st individual rotary shaft 73 and the 2 nd individual rotary shaft 75 to move. Therefore, the yarn threading operation can be facilitated while suppressing an increase in the size of the machine body of the false twist processing machine 1 in the longitudinal direction.

As described above, the yarn guide 63a is fixed to the support base 55, and the yarn guide 63b is fixed to the support base 56. Therefore, when the 1 st individual rotary shaft 73 moves from the 1 st operating position to the 1 st yarn hanging position, the yarn guide 63a also moves toward the proximal side and toward the inner side (the common rotary shaft 71 side) in the longitudinal direction of the body of the five-axis false twisting device 15 (see fig. 9 (b)). Further, when the 2 nd individual rotary shaft 75 moves from the 2 nd operating position to the 2 nd yarn hanging position, the yarn guide 63b also moves toward the proximal side and toward the inner side (the common rotary shaft 71 side) in the longitudinal direction of the body of the five-axis false twisting device 15 (see fig. 9 (b)). The

yarn guide

63a, 63b (the yarn guide 63) moves to the near side (the side closer to the operator), and thereby the yarn hanging operation of the yarn guide 63 is facilitated. Further, the distance between the yarn guide 63 of the adjacent five-axis false twisting device 15 is widened by moving the yarn guide 63 to the inside (the common rotating shaft 71 side) in the longitudinal direction of the machine body of the five-axis false twisting device 15. Therefore, the yarn hooking work of the yarn guide 63 is facilitated.

Here, the rotation angle of the support base 55 when the 1 st individual rotation shaft 73 is moved from the 1 st operation position to the 1 st yarn hanging position is, for example, preferably 27 degrees or more and 30 degrees or less. When the rotation angle is 27 degrees or more, the disk member 57 attached to the 1 st individual rotation shaft 72 and the disk member 57 attached to the 1 st individual rotation shaft 73 do not substantially overlap when viewed from the axial direction when the 1 st individual rotation shaft 73 is located at the 1 st yarn hanging position (see fig. 9 (b)). Therefore, the yarn Y1 can be easily inserted into the 1 st triangle 201 from between the 1 st individual rotation shaft 72 and the 1 st individual rotation shaft 73, and the yarn can be easily hung on the yarn guides 61, 62, and 63. Further, when the rotation angle is 30 degrees or less, it is possible to suppress the support base 55 and the support base 56 from interfering with each other and moving unexpectedly, and it is possible to suppress the interference with the yarn hooking operation. The same applies to the rotation angle of the support base 56 when the 2 nd individual rotating shaft 75 is moved from the 2 nd operating position to the 2 nd yarn hanging position.

The common rotation shaft 71, the 1 st individual rotation shaft 72, and the 2 nd individual rotation shaft 74 are rotatably attached to the support base 54 and are fixed in position. That is, the common rotation shaft 71, the 1 st individual rotation shaft 72, and the 2 nd individual rotation shaft 74, excluding the 1 st individual rotation shaft 73 and the 2 nd individual rotation shaft 75, among the five rotation shafts 53 correspond to three fixed rotation shafts of the present invention.

Next, referring to fig. 10 (a) to (c), fig. 11 and the like, another configuration of the five-axis false twisting device 15 will be described in detail. Fig. 10 (a) is a view of the guide support portion 90 (described later) as viewed from the tip end side in the axial direction. Fig. 10 (b) is an explanatory view showing the yarn path before the position adjustment of the yarn guides 61a and 61b, as viewed in the longitudinal direction of the machine body. Fig. 10 (c) is an explanatory view showing the yarn path when viewed from the longitudinal direction of the machine body after the position of the yarn guides 61a and 61b is adjusted. Fig. 11 is a view of the drive mechanism viewed from the proximal end side in the axial direction.

(construction of the periphery of the yarn guide)

The configuration of the periphery of the yarn guides 61a and 61b will be described. As shown in fig. 4 and fig. 10 (a), the five-axis false twisting device 15 includes a guide support portion 90 that supports the yarn guides 61a and 61b arranged on the upstream side in the yarn advancing direction. The guide support portion 90 includes, for example, a 1 st support member 91 and a 2 nd support member 92. The 1 st support member 91 is attached to the rear end of the support base 54, is an end on one side in the longitudinal direction of the machine body, and extends in the axial direction. The 2 nd support member 92 is a member attached to the axial direction distal end portion of the 1 st support member 91. The 2 nd member has an extending portion 93 extending inward in the machine body longitudinal direction of the five-axis false twisting device 15, and a pair of

guide mounting portions

94a, 94b provided integrally with the extending portion 93 and extending in a direction substantially perpendicular to both the axial direction and the machine body longitudinal direction. The guide attachment portion 94a is disposed on one side (the 1 st false twisting portion 51 side) in the longitudinal direction of the machine body of the five-axis false twisting device 15. The guide attachment portion 94b is disposed on the other side (the 2 nd false twisting portion 52 side) in the machine body longitudinal direction of the five-axis false twisting device 15.

As shown in fig. 4, a mounting hole 95a for mounting the yarn guide 61a is formed in the guide mounting portion 94a, and a mounting hole 95b for mounting the yarn guide 61b is formed in the guide mounting portion 94 b. As shown in fig. 10 (a), the yarn guide 61a is attached to the guide attachment portion 94a by a fixing tool 96a having a screw (not shown) passing through the attachment hole 95 a. Similarly, the yarn guide 61b is attached to the guide attachment portion 94b by a fixing tool 96 b. The mounting holes 95a and 95b extend in a direction substantially perpendicular to both the axial direction and the longitudinal direction of the housing (see fig. 4). Thus, the yarn guides 61a and 61b are movable yarn guides that can be adjusted in position in a direction substantially perpendicular to the longitudinal direction of the machine body when viewed in the axial direction. Specifically, the yarn guide 61a can be moved along the mounting hole 95a by loosening the fixing tool 96 a. Further, the position of the yarn guide 61a can be fixed by tightening the fixing tool 96 a. The same applies to the yarn guide 61 b.

Here, as described above, the disk member 81 of the 1 st false twist portion 51 and the disk member 82 of the 2 nd false twist portion 52 are disposed point-symmetrically with each other (see fig. 6 (a)). That is, the position of the disc member 81 and the position of the disc member 82 are different from each other when viewed in the longitudinal direction of the body. Therefore, as shown in fig. 10 (b), when the yarn guides 61a and 61b are arranged so as to overlap each other when viewed from the longitudinal direction of the machine body, the bending angle of the yarn Y1 running through the yarn guide 61a and the bending angle of the yarn Y2 running through the yarn guide 62 are different from each other. In this case, the yarn quality of the yarn Y1 may be different from the yarn quality of the yarn Y2. In this regard, in the present embodiment, since the yarn guides 61a and 61b are movable yarn guides, the relative positional relationship between the yarn guide 61a and the yarn guide 61b can be adjusted. Therefore, by appropriately adjusting the positions of the yarn guides 61a and 61b, the difference between the bending angle of the yarn Y1 and the bending angle of the yarn Y2 can be reduced (see fig. 10 c).

(details of the drive mechanism)

Next, the driving mechanism 58 will be described in detail. As shown in fig. 11, the drive mechanism 58 has a motor 85 and

belts

86, 87, 88, 89. The motor 85 is a drive source that is disposed on the back side of the support base 54 and drives the five rotating shafts together. The belt 86 is an endless belt for transmitting the power of the motor 85 to the common rotating shaft 71 (an intermediate shaft of the present invention). The belt 86 is wound around a pulley 101 attached to the drive shaft 85a of the motor 85 and a pulley 102 attached to the common rotating shaft 71.

The belt 87 (a common belt of the present invention) is an endless belt for transmitting the power of the motor 85 to the 1 st individual rotating shaft 72 and the 2 nd individual rotating shaft 74, which are the remaining two of the three fixed rotating shafts, via the common rotating shaft 71. The belt 87 is wound around a pulley 103 attached to the common rotating shaft 71, a pulley 104 attached to the 1 st individual rotating shaft 72, and a pulley 105 attached to the 2 nd individual rotating shaft 74 (see fig. 5 and 11).

The belt 88 is an endless belt for transmitting the power of the motor 85 to the 1 st individual rotating shaft 73 via the common rotating shaft 71. The belt 88 is wound around a pulley 106 attached to the common rotation shaft 71 and a pulley 107 attached to the 1 st individual rotation shaft 73 (see fig. 5 and 11). The belt 89 is an endless belt for transmitting the power of the motor 85 to the 2 nd individual rotating shaft 75 via the common rotating shaft 71. The belt 89 is wound around a pulley 108 attached to the common rotation shaft 71 and a pulley 109 attached to the 2 nd individual rotation shaft 75 (see fig. 5 and 11).

Here, in a configuration in which a belt for transmitting power to the 1 st individual rotation shaft 72 and a belt for transmitting power to the 2 nd individual rotation shaft 74 are provided instead of the belt 87 for driving the 1 st individual rotation shaft 72 and the 2 nd individual rotation shaft 74 in common, respectively, the number of belts is increased. Accordingly, the number of pulleys attached to the common rotating shaft 71 also increases, and there arises a problem that the common rotating shaft 71 has to be made longer. In this regard, in the present embodiment, since the three fixed rotation shafts can be collectively driven by the belt 87, the number of belts can be suppressed to be small.

As described above, the 1 st individual rotating shaft 73 is movable between the 1 st operating position and the 1 st yarn-hanging position which is closer to the body side than the 1 st operating position. Thus, when the 1 st false twist portion 51 is twisted, the gap between the two 1 st

individual rotary shafts

72 and 73 can be increased. Therefore, even in a configuration in which a plurality of five-axis false twisting devices 15 are arranged in the longitudinal direction of the machine body, it is possible to easily perform yarn hanging from the working space 22. Similarly, the 2 nd individual rotary shaft 75 is also movable between the 2 nd operating position and the 2 nd yarn-hooking position, and therefore, when hooking the yarn to the 2 nd false twist portion 52, the gap between the two 2 nd individual

rotary shafts

74, 75 can be increased. As described above, in the false twisting machine 1 in which the five-axis false twisting devices 15 are arranged in the longitudinal direction of the machine body, the operation of yarn hanging can be easily performed.

The 1 st individual rotation shaft 73 and the 2 nd individual rotation shaft 75 are swingable about the common rotation shaft 71 as a swing shaft center. That is, when the 1 st individual rotation shaft 73 and the 2 nd individual rotation shaft 75 are moved, the distance between the 1 st individual rotation shaft 73 and the common rotation shaft 71 and the distance between the 2 nd individual rotation shaft 75 and the common rotation shaft 71 do not change. Therefore, the

belts

88 and 89 can be prevented from being loosened and damaged by excessive tension.

Further, by adjusting the positions of the yarn guides 61a and 61b, the difference between the yarn path of the yarn Y1 guided by the yarn guide 61a and the yarn path of the yarn Y2 guided by the yarn guide 61b can be suppressed to be small. Therefore, the yarn quality unevenness between the yarn Y1 and the yarn Y2 can be suppressed.

The yarn guides 61a and 61b are movable in a direction substantially orthogonal to the longitudinal direction of the machine body when viewed from the axial direction. Therefore, the movable range of the yarn guides 61a and 61b can be widened while suppressing interference between the yarn guides 61a and 61b, and thus the yarn path can be effectively adjusted.

Further, since the common rotation shaft 71, the 1 st individual rotation shaft 72, and the 2 nd individual rotation shaft 74 can be collectively driven by the belt 87, the number of belts can be suppressed to be small. Therefore, the rotation shaft 53 can be prevented from being elongated, and the apparatus can be prevented from being enlarged.

The power of the motor 85 is transmitted to the common rotating shaft 71 disposed at the midpoint in the longitudinal direction of the machine body among the five rotating shafts 53. Therefore, the five-axis false twisting device 15 can be configured to transmit power to the other rotary shaft 53 disposed around the common rotary shaft 71. Thus, the configuration for power transmission can be simplified.

Further, the disc member 81 on the most upstream side in the 1 st yarn advancing direction of the 1 st false twist portion 51 and the disc member 82 on the most upstream side in the 2 nd yarn advancing direction of the 2 nd false twist portion 52 are disposed in the same 1 st plane 203. The disk member 83 on the most downstream side in the 1 st yarn advancing direction of the 1 st false twist portion 51 and the disk member 84 on the most downstream side in the 2 nd yarn advancing direction of the 2 nd false twist portion 52 are disposed in the same 2 nd plane 204. This makes it possible to make the arrangement structure of the disk member 57 in the axial direction compact. Therefore, the size of the apparatus in the axial direction can be suppressed.

Next, a modification of the above embodiment will be described. However, the same reference numerals are given to the same components as those in the above-described embodiment, and the description thereof will be omitted as appropriate.

(1) In the embodiment described above, the disk members 57 are attached to all the rotating shafts 53 of all the five-axis false twisting devices 15 in the false twisting machine 1, but the present invention is not limited thereto. For example, the unnecessary disk member 57 may be removed from a rotary shaft 53 (for example, the rotary shaft 53 disposed in a part of the five-axis false twisting device 15 on the left side of the drawing sheet in fig. 2) not used for the processing of the yarn Y for the purpose of cost reduction or the like. However, in the configuration in which the five rotary shafts 53 are driven by the motor 85, the following problems occur. That is, only by simply removing the disk member 57 from a part of the rotary shafts 53 in one of the five-axis false twisting devices 15, the load applied to the motor 85 of the five-axis false twisting device 15 becomes smaller than the load applied to the motors 85 of the other five-axis false twisting devices 15. Accordingly, in the five-axis false twisting device 15 from which a part of the disk member 57 is removed, the five rotary shafts 53 are unexpectedly rotated at high speed. As a result, the yarn quality of the yarn processed by the five-axis false twisting device 15 may be greatly different from the yarn quality of the yarn processed by the other five-axis false twisting device 15. Therefore, as shown in fig. 12 (a) and (b), in the five-axis false twisting device 15 from which a part of the disk member 57 is removed, a weight may be provided instead of the removed disk member 57. For example, as shown in fig. 12 (a), in the five-axis false twisting device 15c in which the disk member 57 is removed from the 1 st

individual rotary shafts

72 and 73, a weight 110 may be provided in place of the disk member 57. Similarly, as shown in fig. 12 (b), a weight 110 may be provided in place of the disk member 57 in the five-axis false twisting device 15d in which the disk member 57 is removed from the 2 nd individual

rotating shafts

74 and 75. This causes the weight 110 to be loaded, and thus prevents the rotating shaft 53 from rotating rapidly. Therefore, by using a member cheaper than the circular plate member 57 as the weight 110, it is possible to suppress an increase in cost and suppress variation in yarn quality between the five-axis false twisting devices 15.

Alternatively, instead of providing the weight 110, the five-axis false twisting device 15 in which a part of the disk member 57 is removed may be configured to feedback-control the rotation speed of the motor 85. For example, the five-axis false twisting device 15 may include an inverter device, not shown, for controlling the rotation speed of the motor 85 for driving the five rotary shafts 53 in common. Alternatively, as another means, the five-axis false twisting device 15 from which a part of the disk member 57 is removed may have five motors not shown that independently rotate and drive the respective rotary shafts 53.

(2) In the embodiments described so far, the disk member 57 having the contact portion with the yarn Y made of polyurethane is attached to all the rotating shafts 53, but the present invention is not limited thereto. That is, since the disc member 57 provided on the common rotating shaft 71 is in contact with both the yarn Y1 and the yarn Y2 in principle, the disc member 57 may be worn earlier than the disc members 57 provided on the other rotating shafts 53. Therefore, for example, the contact portions of all the disk members 57 attached to the common rotating shaft 71 with the yarn Y may be formed of ceramics having higher abrasion resistance than polyurethane. That is, the wear resistance of the portion of the disc member 57 attached to the common rotating shaft 71 that contacts the yarn Y may be higher than the wear resistance of the portion of the disc member 57 attached to the rotating shaft 53 other than the common rotating shaft 71 that contacts the yarn Y. This can prevent the disc member 57 provided only on the common rotation shaft 71 from being worn prematurely. Therefore, it is possible to avoid the necessity of replacing only a part of the disk member 57 early. The material of the portion of the disc member 57 in contact with the yarn Y is not limited to the polyurethane or ceramic.

(3) In the embodiments described so far, the disc member 81 of the 1 st false twist portion 51 and the disc member 82 of the 2 nd false twist portion 52 are disposed in the same 1 st plane 203, but the present invention is not limited thereto. The disk member 81 and the disk member 82 need not be arranged in the same plane. Similarly, the disk member 83 of the 1 st false twist portion 51 and the disk member 84 of the 2 nd false twist portion 52 need not be disposed within the same 2 nd plane 204.

(4) In the embodiments described so far, the power is transmitted from the motor 85 to the common rotating shaft 71 by the belt 86 (i.e., the common rotating shaft 71 corresponds to the intermediate shaft of the present invention), but the present invention is not limited thereto. For example, the five-axis false twisting device 15 may be configured to transmit power from the motor 85 to the 1 st individual rotating shaft 72 or from the motor 85 to the 2 nd individual rotating shaft 74 by the belt 86.

(5) In the embodiments described so far, the belt 87 is used to transmit power to both the 1 st individual rotating shaft 72 and the 2 nd individual rotating shaft 74 via the common rotating shaft 71, but the present invention is not limited to this. That is, the power transmitted to the common rotating shaft 71 may be transmitted to the 1 st individual rotating shaft 72 and the 2 nd individual rotating shaft 74 via different belts.

(6) In the embodiments described so far, the rotary shaft 53 is belt-driven, but the present invention is not limited to this. For example, as a transmission member for transmitting the power of the drive source to each of the rotary shafts 53, a gear or a chain may be provided instead of the belt.

(7) In the embodiments described so far, the yarn guides 61a and 61b are movable in the direction substantially orthogonal to the longitudinal direction of the machine body when viewed from the axial direction, but the present invention is not limited thereto. The movable direction of the yarn guides 61a and 61b may be inclined from a direction substantially orthogonal to the longitudinal direction of the machine body. In other words, the yarn guides 61a and 61b may be movable in a direction intersecting the longitudinal direction of the machine body.

(8) In the embodiments described so far, the position of both the yarn guides 61a and 61b can be adjusted, but the present invention is not limited to this. That is, only one of the yarn guides 61a and 61b may be adjustable in position with respect to the other. In other words, at least one of the yarn guides 61a and 61b may be adjustable in position relative to the other.

(9) In the modification (8), at least one of the yarn guides 61a and 61b may be adjustable in position with respect to the other, but the present invention is not limited thereto. The guide 61a and the guide 61b may not necessarily be configured to be adjustable in position.

(10) In the embodiments described so far, the 1 st individual rotation shaft 73 and the 2 nd individual rotation shaft 75 are swingable about the common rotation shaft 71 as the swing shaft center, but the present invention is not limited to this. For example, the 1 st individual rotation shaft 73 and the 2 nd individual rotation shaft 75 may be configured to be linearly movable.

(11) In the embodiments described so far, the false twist processing machine 1 is provided with the yarn doubling device 17, but the false twist processing machine 1 may not necessarily be provided with the yarn doubling device 17.

(12) In the embodiments described so far, the winding device 21 is configured to be capable of switching the operation mode between the 1 st mode in which the yarn Y is wound on one winding bobbin Bw and the 2 nd mode in which the yarn Y is wound on two winding bobbins Bw, but the present invention is not limited thereto. For example, the winding device 21 may be configured to be able to select an operation mode for winding the yarn Y onto three or more winding bobbins Bw. Alternatively, the winding device 21 may be configured to wind the yarn Y onto only one winding bobbin Bw.

(13) In the embodiments described so far, the false twist processing machine 1 false-twists the yarn Y made of nylon, but the invention is not limited thereto. The false twist processing machine 1 may perform false twist processing on a yarn made of polyester, for example.

(14) In the configuration in which the support bases 54, 55, and 56 rotatably support the common rotating shaft 71 via bearings, not shown, for example, if the support base 55 is swung, the support base 56 may be accidentally swung by friction, and the following problems may occur. For example, if the support stand 56 is accidentally swung to the near side in a state where the yarn hooking operation to the 2 nd false twist portion 52 has been completed, the yarn Y2 may be separated from the 2 nd false twist portion 52 and the yarn hooking operation may need to be performed again. Therefore, the five-axis false twisting device 15 may be provided with a lock mechanism for preventing the rotating shaft 53 from being accidentally moved from the operating position to the yarn hanging position. All the components of one lock mechanism may be provided in a corresponding one of the five-axis false twisting devices 15. Alternatively, as shown in fig. 13 (a) and (b), the lock mechanism 120 may be provided across from the support base 55 of one of the five-axis false twisting devices 15 to the support base 56 of the five-axis false twisting device 15 adjacent to the five-axis false twisting device 15. Specifically, as shown in fig. 13 (b), the lock mechanism 120 includes a plate member 121 having a longitudinal shape, a rotational shaft 122 provided on a proximal side surface of the support table 56 of one of the five-axis false twisting devices 15, and a protrusion 123 provided on a proximal side surface of the support table 55 of the adjacent five-axis false twisting device 15. One end of the plate member 121 in the extending direction is attached to the proximal side surface of the support base 56 via a rotating shaft 122. That is, the plate member 121 is rotatably attached to the support base 56. A U-shaped notch 121a, for example, is formed in the other end of the plate member 121 in the extending direction. Thus, the other end of the plate member 121 becomes an engagement portion that can be engaged with the convex portion 123. When the plate member 121 is engaged with the convex portion 123 (see the solid line in fig. 13 (b)), the support bases 55 and 56 provided with the lock mechanism 120 can be prevented from being accidentally moved toward the proximal side. When the engagement between the plate member 121 and the convex portion 123 is released (see the two-dot chain line in fig. 13 (b)), the support bases 55 and 56 can be moved toward the proximal side. Further, the lock mechanism 120 as described above may be provided also when the yarn Y1 processed by one of the five-axis false twisting devices 15 is combined with the yarn Y2 processed by the five-axis false twisting device 15 disposed adjacent to the five-axis false twisting device 15.

Claims

1. A false twisting machine comprising a plurality of five-axis false twisting devices capable of imparting a twist to two yarns at a time by a plurality of disk members arranged in a predetermined machine body longitudinal direction, the plurality of disk members being provided on five rotary shafts extending in an axial direction intersecting with the machine body longitudinal direction, a working space being formed in the machine body longitudinal direction for hanging yarns on the plurality of five-axis false twisting devices, characterized in that,

each five-axis false twisting device is provided with:

a 1 st false twist unit having two 1 st individual rotation axes and one common rotation axis, which form a virtual 1 st triangle vertex when viewed from the axial direction, among the five rotation axes, and imparting a twist to the 1 st yarn running inside the 1 st triangle; and

a 2 nd false twist portion having two 2 nd individual rotation axes forming a vertex of a virtual 2 nd triangle when viewed from the axial direction among the five rotation axes and the one common rotation axis, and imparting a twist to the 2 nd yarn advancing inside the 2 nd triangle,

the two 1 st individual rotating shafts and the two 2 nd individual rotating shafts are disposed on opposite sides of the common rotating shaft in the longitudinal direction of the machine body,

the 1 st false twist part is configured to let the 1 st yarn enter the inside of the 1 st triangle from between the two 1 st individual rotating shafts to be hung,

the 2 nd false twist part is configured to let the 2 nd yarn enter the 2 nd triangle from between the two 2 nd individual rotating shafts to be hung,

one of the two 1 st individual rotary shafts is a 1 st movable shaft, the 1 st movable shaft is arranged closer to the near side of the working space than the other of the two 1 st individual rotary shafts, and is movable between a 1 st operation position when the five-axis false twisting device is operated and a 1 st yarn hanging position closer to the near side than the 1 st operation position,

one of the two 2 nd individual rotary shafts is a 2 nd movable shaft, and the 2 nd movable shaft is disposed closer to the near side than the other of the two 2 nd individual rotary shafts, and is movable between a 2 nd operation position at the time of operation of the five-axis false twisting device and a 2 nd yarn-hooking position closer to the near side than the 2 nd operation position.

2. The false twist texturing machine of claim 1,

the 1 st movable shaft and the 2 nd movable shaft are swingable about the common rotation shaft as a swing shaft center.

3. The false twist texturing machine according to claim 1 or 2,

the 1 st false twist part has a 1 st yarn guide, the 1 st yarn guide is arranged on the more upstream side of the most upstream side of the disc member in the 1 st yarn advancing direction in which the 1 st yarn advances among the plurality of disc members,

the 2 nd false twisting part has a 2 nd yarn guide, the 2 nd yarn guide is configured on the more upstream side of the most upstream side disc member in the traveling direction of the 2 nd yarn traveling by the 2 nd yarn among the plurality of disc members,

at least one of the 1 st yarn guide and the 2 nd yarn guide is a movable yarn guide whose position can be adjusted with respect to the other.

4. The false twist texturing machine of claim 3,

the 1 st yarn guide and the 2 nd yarn guide are arranged in parallel along the longitudinal direction of the machine body,

the movable yarn guide is movable in a direction intersecting with a longitudinal direction of the machine body when viewed in the axial direction.

5. A false twist texturing machine according to any one of claims 1 to 4,

the five-axis false twisting device is configured to transmit power of a drive source to an intermediate shaft, which is one of three fixed rotary shafts, of the five rotary shafts, excluding the 1 st movable shaft and the 2 nd movable shaft, and has a common belt for transmitting power of the drive source from the intermediate shaft to the remaining two of the three fixed rotary shafts.

6. The false twist texturing machine of claim 5,

the intermediate shaft is the common rotating shaft.

7. A false twist texturing machine according to any one of claims 1 to 6,

each five-axis false twisting device has a common drive source for commonly driving the five rotary shafts,

among the five rotating shafts, a balance weight is provided in place of the disk member on the rotating shaft not used for processing the yarn.

8. A false twist texturing machine according to any one of claims 1 to 7,

the wear resistance of the member forming the contact portion with the yarn of the disk member provided on the common rotating shaft is higher than the wear resistance of the member forming the contact portion with the yarn of the disk member provided on the rotating shaft other than the common rotating shaft.

9. A false twist texturing machine according to any one of claims 1 to 8,

the disc member of the 1 st false twist portion disposed on the most upstream side in the 1 st yarn advancing direction in which the 1 st yarn advances and the disc member of the 2 nd false twist portion disposed on the most upstream side in the 2 nd yarn advancing direction in which the 2 nd yarn advances are disposed in the same 1 st plane orthogonal to the axial direction,

the disc member of the 1 st false twist portion disposed on the most downstream side in the 1 st yarn advancing direction and the disc member of the 2 nd false twist portion disposed on the most downstream side in the 2 nd yarn advancing direction are disposed in the same 2 nd plane orthogonal to the axial direction.