False twist processing machine

Abstract

The invention relates to a false twisting processing machine which can well perform yarn hanging operation in a false twisting processing machine with a plurality of spindles. The false twisting machine is provided with a plurality of spindles, and each spindle is provided with a false twisting device, and a first yarn feeding roller and a second yarn feeding roller which are configured to clamp the false twisting device. Each spindle is provided with a first motor (11a), a second motor (16a), converters (11b, 16b) and an operation part (24), wherein the first motor (11a) and the second motor (16a) respectively drive the first yarn feeding roller and the second yarn feeding roller, the converters (11b, 16b) can respectively adjust the rotation speed of the first motor (11a) and the rotation speed of the second motor (16a), and the operation part (24) can generate signals. When the control part (40) receives the signal generated by the operation part (24), the control part (40) controls the converters (11b, 16b) of the spindles generating the received signal, and the yarn conveying speed of the first yarn feeding roller and the second yarn feeding roller is set to be the yarn hanging speed different from the production speed.

Description

Technical Field

[0001] The present invention relates to a false twisting machine for performing false twisting on silk threads. Background Art

[0002] Patent document 1 discloses a silk thread manufacturing device (false twist processing machine) having a plurality of spindles, the silk thread manufacturing device having roller groups respectively arranged on the upstream side and downstream side of a false twisting device group (false twisting device) in the supply direction of the silk thread. Each roller group is composed of a plurality of rollers mounted on a main shaft and an upper pressure roller that is paired with each roller to hold the silk thread. The plurality of rollers correspond to each spindle and are driven simultaneously by the rotation of the main shaft. In this silk thread manufacturing device, the supplied silk thread is overfed between two roller groups arranged to clamp the false twisting device group or is stretched while being twisted by the false twisting device group.

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 1-132843

[0004] In a false twisting machine, the appropriate wire feeding speed and wire stretching rate during wire production and during wire hanging are sometimes different. In this case, it is necessary to change the wire feeding speed and wire stretching rate during wire production and during wire hanging. Here, in the above-mentioned false twisting machine, since the rollers corresponding to each spindle are installed on a common main shaft, it is impossible to change the wire feeding speed and wire stretching rate of multiple spindles individually. Therefore, it is impossible to change only the wire feeding speed and wire stretching rate of the spindle that has broken wire during wire production to the wire feeding speed and wire stretching rate suitable for wire hanging. Therefore, the wire hanging operation cannot be performed well. Summary of the invention

[0005] An object of the present invention is to enable a yarn hanging operation to be performed satisfactorily in a false twisting machine having a plurality of spindles.

[0006] The false twist processing machine of the first invention is provided with a plurality of spindles, wherein the spindles are provided with a plurality of wire conveying devices for conveying wires, and a false twisting device for twisting the wires, wherein, when two wire conveying devices adjacent to each other in the direction of wire travel among the plurality of wire conveying devices and configured to sandwich the false twisting device are set as the first wire conveying device and the second wire conveying device, the false twist processing machine comprises: a motor, which is provided in the wire conveying device of at least one of the first wire conveying device and the second wire conveying device in each spindle, and drives the at least one wire conveying device; a rotation speed adjustment device, which is provided corresponding to each of the motors and can adjust the corresponding upper The rotation speed of the motor; a signal generating unit, which is provided corresponding to each spindle and can generate a signal; and a control unit, which can control the above-mentioned rotation speed adjusting device provided on each spindle, and can control the wire conveying speed of at least one of the above-mentioned wire conveying devices separately for each of the above-mentioned spindles. The above-mentioned control unit, when receiving the signal generated by the above-mentioned signal generating unit, controls the above-mentioned rotation speed adjusting device of the spindle that generated the received signal, i.e., the object spindle, and sets the wire conveying speed of at least one of the above-mentioned wire conveying devices, i.e., the object wire conveying device of the above-mentioned object spindle, to a speed different from the speed when producing the wire, i.e., the production speed, and to a speed when hanging the wire, i.e., the hanging wire speed.

[0007] In the present invention, the wire conveying speed of at least one of the first wire conveying device and the second wire conveying device of the spindle for which the signal is generated by the signal generating unit can be set to a wire hanging speed different from the production speed. The wire conveying speed between the first wire conveying device and the second wire conveying device depends on the wire conveying speed of the wire conveying device on the downstream side of the wire traveling direction of the first wire conveying device and the second wire conveying device. Therefore, by setting the wire conveying speed of the wire conveying device on the downstream side to the wire hanging speed, the wire conveying speed between the first wire conveying device and the second wire conveying device can be made suitable for wire hanging. In addition, by setting the wire conveying speed of at least one of the first wire conveying device and the second wire conveying device to the wire hanging speed, the stretching rate of the wire between the first wire conveying device and the second wire conveying device can be made different from that during production. Therefore, the stretching rate of the wire can be made suitable for wire hanging. Therefore, the wire hanging operation can be performed well. In the present invention, at least one of the wire feeding speed between the first wire feeding device and the second wire feeding device and the wire stretching rate between the first wire feeding device and the second wire feeding device may be changed.

[0008] The false twisting machine of the second invention is that in the first invention, the above-mentioned motor is respectively arranged in the above-mentioned first wire feeding device and the above-mentioned second wire feeding device in each spindle, and the above-mentioned control unit controls the above-mentioned rotation speed adjustment device corresponding to the above-mentioned motor respectively arranged in the above-mentioned first wire feeding device and the above-mentioned second wire feeding device in the above-mentioned object spindle, and sets both the wire feeding speed of the above-mentioned first wire feeding device and the wire feeding speed of the above-mentioned second wire feeding device as the above-mentioned wire hanging speed.

[0009] The wire feeding speed and wire stretching rate suitable for wire hanging vary according to the type of wire and the conditions of wire processing. In the present invention, both the wire feeding speed and the wire stretching rate between the first wire feeding device and the second wire feeding device can be made suitable for wire hanging. Therefore, the wire feeding speed and the wire stretching rate can be changed in accordance with various wire types and processing conditions, and the wire hanging operation can be performed more effectively.

[0010] A false twisting machine according to a third aspect of the present invention is the false twisting machine according to the first or second aspect of the present invention, wherein the signal generating section can detect yarn breakage and generates a signal when yarn breakage is detected.

[0011] In the present invention, when a wire breakage occurs in a spindle, a signal generating unit provided in the spindle generates a signal, thereby enabling the wire feeding speed of at least one of the first wire feeding device and the second wire feeding device of the spindle to be set to a wire hanging speed different from the production speed. Therefore, the wire hanging operation in the spindle where the wire breakage occurs can be performed well.

[0012] A false twisting machine according to a fourth aspect of the present invention is the false twisting machine according to the second aspect of the present invention, wherein the signal generating section is an operating section configured to be operable by an operator and to generate a signal when operated.

[0013] In the present invention, when the operator operates the operating portion of a certain spindle, the wire feeding speed of at least one of the first and second wire feeding devices of the spindle can be set to a wire hanging speed different from the production speed.

[0014] The false twisting machine of the fifth invention is, in the fourth invention, two of the above-mentioned operating parts are respectively provided in each spindle, and the above-mentioned control part sets the silk thread conveying speed of the above-mentioned first silk thread conveying device to the above-mentioned silk hanging speed when one of the two above-mentioned operating parts is operated, and sets the silk thread conveying speed of the above-mentioned second silk thread conveying device to the above-mentioned silk hanging speed when the other of the two above-mentioned operating parts is operated.

[0015] In the present invention, the wire feeding speed between the first wire feeding device and the second wire feeding device and the wire stretching rate can be changed with a high degree of freedom according to the judgment of the operator.

[0016] The false twisting machine of the sixth invention is, in the fourth invention, an operating unit is provided in each spindle, and when one of the operating units is operated, the control unit sets both the yarn conveying speed of the first yarn conveying device and the yarn conveying speed of the second yarn conveying device to the yarn hanging speed.

[0017] In the present invention, since only one operating portion provided on the spindle for hanging the wire needs to be operated, the operation is simple.

[0018] The false twist processing machine of the 7th invention is that in at least one of the 1st to 6th inventions, the above-mentioned false twist processing machine has a judgment information acquisition unit, which can obtain information for judging whether the thread hanging is completed in each spindle, and the above-mentioned control unit judges whether the thread hanging is completed for the above-mentioned object spindle based on the signal from the above-mentioned judgment information acquisition unit, and when it is judged that the thread hanging is completed, the thread conveying speed of the above-mentioned object thread conveying device of the above-mentioned object spindle is set from the above-mentioned thread hanging speed to the above-mentioned production speed.

[0019] In the present invention, an operation for returning from the wire hanging speed to the production speed is not required.

[0020] The false twisting machine of the eighth invention is characterized in that, in the seventh invention, the information acquisition section can acquire the magnitude of the yarn tension, and the control section determines that the yarn hooking is completed when the magnitude of the yarn tension acquired by the information acquisition section is equal to or greater than a predetermined value.

[0021] In the present invention, when the tension of the yarn becomes equal to or greater than a predetermined value, the yarn hooking speed can be changed to the production speed.

[0022] The false twisting machine of the 9th invention is, in the 7th invention, the above-mentioned judgment information acquisition part can obtain the magnitude of the tension of the silk thread, and the above-mentioned control part judges that the silk thread hanging is completed when a specified time has passed since the magnitude of the silk thread tension obtained by the above-mentioned judgment information acquisition part becomes greater than a specified value.

[0023] In the present invention, when a predetermined time has passed since the tension of the yarn became equal to or greater than a predetermined value, the yarn hooking speed can be set to the production speed.

[0024] The false twisting machine of the tenth invention is that, in the seventh invention, the above-mentioned judgment information acquisition unit is capable of detecting whether there is silk on the silk channel downstream of the first silk conveying device and the second silk conveying device in the direction of silk travel, and the above-mentioned control unit judges that the silk hanging is completed when a specified time has passed since the above-mentioned judgment information acquisition unit detected the existence of silk on the silk channel.

[0025] In the present invention, when a predetermined time has passed since the presence of the yarn in the yarn passage downstream of the first yarn feeding device and the second yarn feeding device in the yarn running direction was detected, the yarn hooking speed can be set to the production speed.

[0026] The false twisting machine according to the eleventh invention is the one according to the seventh invention, wherein the determination information acquisition section is the signal generation section, and the control section determines that the yarn hanging is completed when a predetermined time has elapsed since the signal generation section generated the signal.

[0027] In the present invention, when a predetermined time has passed since the signal generation unit generated the signal, the wire hanging speed can be set to the production speed.

[0028] The false twisting machine of the 12th invention is, in the 7th invention, the false twisting machine has a winding device, which is arranged on each spindle, and winds up the silk thread twisted by the false twisting device. The winding device has a start indication input part, and the start indication input part is configured to be able to be operated by an operator, and can input an indication for starting the winding of the silk thread. The judgment information acquisition part is the start indication input part, and the control part judges that the silk hanging is completed when the start indication input part is operated.

[0029] In the present invention, when the winding device is instructed to start winding the yarn, the yarn hooking speed can be set to the production speed.

[0030] The false twist processing machine of the 13th invention is, in the 7th invention, the above-mentioned false twist processing machine has a winding device, which is arranged on each spindle, and winds up the silk thread twisted by the above-mentioned false twist device, and the above-mentioned winding device has: a suction part, which can suck in the silk thread; and a suction detection part, which can detect that the above-mentioned suction part has sucked in the silk thread, the above-mentioned judgment information acquisition part is the above-mentioned suction detection part, and the above-mentioned control part judges that the silk hanging is completed when the above-mentioned suction detection part detects that the above-mentioned suction part has sucked in the silk thread.

[0031] In the present invention, when the yarn is sucked into the suction section of the winding device, the yarn hooking speed can be set to the production speed.

[0032] A false twisting machine according to a fourteenth invention is the one according to at least one of the first to thirteenth inventions, wherein the yarn hooking speed is lower than the production speed.

[0033] In the present invention, the rotation speed of the roller is lowered when hanging the wire than during production, so that the wire hanging can be easily performed.

[0034] A false twisting machine according to a fifteenth invention is the one according to at least one of the first to fourteenth inventions, wherein the yarn feeding device is a roller.

[0035] In the present invention, the wire feeding speed by the roller can be set to a wire hanging speed different from the production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a side view of the false twisting machine which is one embodiment of this invention.

[0037] Figure 2 This is a schematic diagram showing the false twisting machine unfolded along the path of the yarn.

[0038] Figure 3 This is a block diagram showing the electrical configuration of the main parts of the false twisting machine.

[0039] Figure 4 This is a flowchart showing an example of a processing procedure performed by the control unit.

[0040] Figure 5 Yes means Figure 4 The flowchart of the process of handling when the wire is broken is shown.

[0041] Figure 6 This is a block diagram showing the electrical configuration of a main part of a false twisting machine according to a modified example.

[0042] Explanation of symbols

[0043] 1: false twisting machine; 11: first yarn supply roller (first yarn conveying device); 11a: first motor (motor); 11b: converter (rotational speed adjusting device); 15: false twisting device; 16: second yarn supply roller (second yarn conveying device); 16a: second motor (motor); 16b: converter (rotational speed adjusting device); 21: winding device; 22: tension sensor (judgment information acquisition unit); 23: yarn contact (signal generating unit, judgment information acquisition unit); 24, 24a, 24b: operating unit (signal generating unit, judgment information acquisition unit); 36: suction unit; 36a: suction sensor (suction detecting unit, judgment information acquisition unit); 37: winding start button (start indication input unit, judgment information acquisition unit); 40: control unit. DETAILED DESCRIPTION

[0044] A false twisting machine 1 according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1 The direction perpendicular to the paper is set as the machine length direction, and the left and right direction of the paper is set as the machine width direction. The direction perpendicular to both the machine length direction and the machine width direction is set as the up and down direction where gravity acts. The machine length direction and the machine width direction are directions roughly parallel to the horizontal direction.

[0045] (Overall Structure of False Twist Processing Machine 1)

[0046] The false twisting machine 1 is configured to perform false twisting on a thread Y made of synthetic fibers such as nylon (polyamide-based fibers) and polyester. Figure 1 as well as Figure 2 As shown, the false twisting machine 1 includes a yarn supply section 2 for supplying yarn Y, a processing section 3 for false twisting the yarn Y supplied from the yarn supply section 2, and a winding section 4 for winding the yarn Y processed by the processing section 3 onto a winding bobbin Bw. Figure 2 As shown in FIG. 1 , the yarn supply unit 2, the processing unit 3 and the winding unit 4 have a plurality of components arranged in the longitudinal direction of the machine body. The longitudinal direction of the machine body is the traveling plane of the yarn Y formed by the yarn channel from the yarn supply unit 2 through the processing unit 3 to the winding unit 4 ( Figure 1 A direction perpendicular to the paper surface).

[0047] The yarn supply section 2 has a creel 5 for holding a plurality of yarn supply packages Ps. The yarn supply section 2 supplies a plurality of yarns Y to the processing section 3. The processing section 3 false-twists the yarns Y supplied from the yarn supply package Ps. The processing section 3 is configured to mainly include, from the upstream side in the yarn travel direction, a first yarn supply roller 11, a twist stop guide 12, a first heating device 13, a cooling device 14, a false twist device 15, a second yarn supply roller 16, a entanglement device 17, a third yarn supply roller 18, a second heating device 19, and a fourth yarn supply roller 20. The winding section 4 has a plurality of winding devices 21. Each winding device 21 winds the yarn Y false-twisted by the processing section 3 onto a winding bobbin Bw to form a winding package Pw.

[0048] The false twisting machine 1 has a main body 8 and a winding table 9 which are arranged at intervals in the width direction of the machine body. The main body 8 and the winding table 9 are extended in the length direction of the machine body to approximately the same length. The main body 8 and the winding table 9 are arranged to be opposite to each other in the width direction of the machine body. 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 installed on the main body 8 and the support frame 10. The devices constituting the winding section 4 are installed on the winding table 9. The main body 8, the winding table 9 and the support frame 10 form a working space A for the operator to perform operations such as hanging the wire on each device. The thread channel is formed so that the thread Y mainly travels around the working space A.

[0049] The false twisting machine 1 has a unit unit called a span, which includes a main body 8 and a winding table 9 arranged opposite to each other. In one span, a plurality of processing units (also called spindles) are arranged in the longitudinal direction of the machine body to form a thread passage through each device constituting the processing section 3. Thus, in one span, a plurality of threads Y arranged in the longitudinal direction of the machine body can be false twisted at the same time. Figure 1As shown, in the false twisting machine 1, the spans are arranged symmetrically on the paper with the center line C in the width direction of the main body 8 as the symmetry axis. The main body 8 is common to the left and right spans. In addition, a plurality of spans are arranged in the longitudinal direction of the body.

[0050] (Composition of the processing department)

[0051] Reference Figure 1 as well as Figure 2 The structure of the processing section 3 will be described. The first yarn supply roller 11 is configured to unwind the yarn Y from the yarn supply package Ps mounted on the yarn supply section 2 and convey the yarn to the first heating device 13. Figure 2 As shown, the first yarn supply roller 11 is configured to feed a yarn Y to the first heating device 13. Each spindle is provided with a first yarn supply roller 11. The first yarn supply roller 11 is a yarn guide roller. The first yarn supply roller 11 is driven by a first motor 11a (see FIG. 1 ) provided in each spindle. Figure 3 ) is driven to rotate, thereby being able to transport the wire Y wound on the peripheral surface.

[0052] In this embodiment, a twist stop guide 12 is provided for each yarn Y. The twist stop guide 12 may be provided for every two yarns Y. The twist stop guide 12 is configured so that the twist applied to the yarn Y by the false twist device 15 does not propagate to the upstream side of the twist stop guide 12 in the yarn traveling direction.

[0053] The first heating device 13 is a device for heating the yarn Y fed from the first yarn supply roller 11 to a predetermined processing temperature. Figure 2 As shown, the first heating device 13 is configured to be able to heat two yarns Y.

[0054] The cooling device 14 is configured to cool the yarn Y heated by the first heating device 13. Figure 2 As shown, the cooling device 14 is configured to cool one wire Y. The cooling device 14 may be configured to cool a plurality of wires Y at the same time.

[0055] The false twist device 15 is arranged on the downstream side of the cooling device 14 in the yarn traveling direction. The false twist device 15 is configured to twist the yarn Y. The false twist device 15 is, for example, a so-called friction disk false twist device, but is not limited thereto. In the present embodiment, the false twist device 15 is configured to twist one yarn Y. The false twist device 15 may also be configured to twist two yarns Y simultaneously.

[0056] The second yarn supply roller 16 is configured to deliver the yarn Y processed by the false twisting device 15 to the interlacing device 17. Figure 2As shown, the second yarn supply roller 16 is configured to deliver a yarn Y to the entanglement device 17. A second yarn supply roller 16 is provided in each spindle. The second yarn supply roller 16 is a yarn guide roller. The second yarn supply roller 16 is driven by a second motor 16a (see FIG. 1 ) provided in each spindle. Figure 3 ) is driven to rotate, thereby being able to transport the wire Y wound on the peripheral surface.

[0057] In this embodiment, the yarn conveying speed of the second yarn supply roller 16 is faster than the yarn conveying speed of the first yarn supply roller 11. As a result, the yarn Y is stretched and false-twisted between the first yarn supply roller 11 and the second yarn supply roller 16. In addition, in each spindle, a tension sensor 22 is provided between the false twisting device 15 and the second yarn supply roller 16. The tension sensor 22 can obtain the magnitude of the tension of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16.

[0058] The interlacing device 17 is configured to interlace the yarns Y. The interlacing device 17 includes, for example, a known interlacing nozzle for interlacing the yarns Y by air flow.

[0059] The third yarn supply roller 18 is configured to deliver the yarn Y traveling downstream of the interlacing device 17 in the yarn traveling direction to the second heating device 19. Figure 2 As shown in FIG. 1 , the third wire supply roller 18 is configured to deliver one wire Y to the second heating device 19. The third wire supply roller 18 may also be configured to deliver a plurality of wires Y to the downstream side of the wire travel direction. In addition, the wire delivery speed of the third wire supply roller 18 is slower than the wire delivery speed of the second wire supply roller 16. Therefore, the wire Y is relaxed between the second wire supply roller 16 and the third wire supply roller 18.

[0060] The second heating device 19 is configured to heat the yarn Y fed from the third yarn supply roller 18. The second heating device 19 extends in the vertical direction, and one second heating device 19 is provided in each span.

[0061] The fourth yarn supply roller 20 is configured to deliver the yarn Y heated by the second heating device 19 to the winding device 21. Figure 2 As shown, the fourth wire supply roller 20 is configured to be able to deliver a single wire Y to the winding device 21. The fourth wire supply roller 20 may also be configured to be able to deliver a plurality of adjacent wires Y to the downstream side of the wire travel direction. The wire delivery speed of the fourth wire supply roller 20 is slower than the wire delivery speed of the third wire supply roller 18. Therefore, the wire Y is relaxed between the third wire supply roller 18 and the fourth wire supply roller 20.

[0062] In each spindle, a thread contact 23 is disposed between the fourth thread supply roller 20 and the winding device 21. The thread contact 23 can detect whether the thread Y exists on the thread passage between the fourth thread supply roller 20 and the winding device 21. That is, the thread contact 23 can detect thread breakage. The thread contact 23 generates a signal when a thread breakage is detected.

[0063] In the processing section 3 constructed as described above, the yarn Y stretched between the first yarn supply roller 11 and the second yarn supply roller 16 is twisted by the false twist device 15. The twist formed by the false twist device 15 is propagated to the anti-twist guide 12, but is not propagated to the upstream side of the anti-twist guide 12 in the yarn travel direction. The yarn Y twisted while being stretched is heated by the first heating device 13 and heat-set, and then cooled by the cooling device 14. The yarn Y is untwisted on the downstream side of the false twist device 15 in the yarn travel direction, but the state in which the yarn Y is false-twisted into a wavy state is maintained by the above-mentioned heat setting (that is, the curling of the yarn Y is maintained).

[0064] The false-twisted yarn Y is loosened between the second yarn supply roller 16 and the third yarn supply roller 18, and is interlaced by the interlacing device 17, and then guided to the downstream side of the yarn travel direction. Furthermore, the yarn Y is loosened between the third yarn supply roller 18 and the fourth yarn supply roller 20, and is heat-treated by the second heating device 19. Finally, the yarn Y fed from the fourth yarn supply roller 20 is wound by the winding device 21.

[0065] (Configuration of the winding section)

[0066] Reference Figure 2 The structure of the winding section 4 is described. The winding section 4 has a winding device 21 provided on each spindle. Each winding device 21 is configured to be able to wind the yarn Y twisted by the false twist device 15 onto a winding bobbin Bw. The winding device 21 mainly includes a fulcrum yarn guide 31, a traverse device 32, and a cradle 33. In addition, each winding device 21 is provided with a known wire hanging device (not shown) for hooking the yarn Y onto the winding bobbin Bw. The wire hanging device is described, for example, in Japanese Patent Gazette No. 2023-131463.

[0067] The fulcrum yarn guide 31 is a yarn guide that serves as a fulcrum when the yarn Y is traversed. The traversing device 32 is configured to be able to traverse the yarn Y through the traversing yarn guide 34. The cradle 33 is configured to support the winding tube Bw so that it can rotate freely. A contact roller 35 is arranged near the cradle 33. The contact roller 35 contacts the surface of the winding package Pw and applies contact pressure.

[0068] In addition, in each spindle, a suction section 36 capable of sucking in the yarn Y is arranged on the downstream side of the fulcrum yarn guide 31 in the yarn traveling direction. The suction section 36 is configured to suck and hold the yarn Y. In addition, a suction sensor 36a (see FIG. 1 ) capable of detecting that the yarn Y is sucked in is provided for each suction section 36. Figure 3 The yarn hooking device (not shown) hooks the yarn Y sucked in by the suction section 36 onto the winding bobbin Bw.

[0069] In the winding section 4 configured as described above, the yarn Y fed from the fourth yarn supply roller 20 is wound around the winding bobbin Bw by each winding device 21 to form a winding package Pw.

[0070] (Electrical structure)

[0071] Next, refer to Figure 3 The electrical structure of the main part of the false twisting machine 1 will be described. Figure 3 As shown, the false twisting machine 1 has a control unit 40 that controls the operation of each device of a plurality of spindles (the first spindle to the nth spindle). The first motor 11a, the second motor 16a, the tension sensor 22, the thread contact 23, the winding device 21, and the suction sensor 36a are electrically connected to the control unit 40. The first motor 11a is connected to the control unit 40 via the converter 11b. The converter 11b can adjust the rotation speed of the first motor 11a. The second motor 16a is connected to the control unit 40 via the converter 16b. The converter 16b can adjust the rotation speed of the second motor 16a. The control unit 40 can control the converters 11b and 16b provided on each spindle, and can control the thread conveying speed of the first thread supply roller 11 and the second thread supply roller 16 individually for each spindle.

[0072] The control unit 40 can determine whether a broken wire has occurred based on the output signal from the wire contact 23. The method for determining a broken wire is not limited thereto. For example, the control unit 40 can also determine whether a broken wire has occurred based on the magnitude of the tension obtained by the tension sensor 22. When the control unit 40 determines that a broken wire has occurred, the control unit 40 controls the converters 11b, 16b and the winding device 21 of the spindles determined to have broken wires, and stops driving the first wire supply roller 11, the second wire supply roller 16 and the winding device 21.

[0073] The control unit 40 is also electrically connected to the operating unit 24. An operating unit 24 is provided in each spindle. The operating unit 24 is configured to be operable by an operator. When the operating unit 24 is operated, a signal is sent to the control unit 40. In the present embodiment, the operating unit 24 is, for example, a button or a joystick provided on the main body 8. In addition, the operating unit 24 may also be, for example, a button displayed on a display of a terminal device such as a tablet terminal that can communicate with the control unit 40.

[0074] The control unit 40 controls the converters 11b and 16b of the spindles whose operating unit 24 is operated when the operating unit 24 is operated. Then, both the wire feeding speed of the first wire feeding roller 11 and the wire feeding speed of the second wire feeding roller 16 are set to the speed when the wire Y is hung, that is, the wire hanging speed, which is lower than the speed when the wire Y is produced, that is, the production speed.

[0075] Specifically, for example, when the yarn Y to be produced is relatively weak, the yarn feeding speed of the first yarn supply roller 11 and the second yarn supply roller 16 is set to the yarn hanging speed, so that the stretching rate of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16 is lower than that during production. As a result, it is possible to avoid the yarn Y from being broken due to friction resistance and stretching during hanging.

[0076] In addition, for example, in the case of high-speed production of the yarn Y, by setting the yarn feeding speed of the first yarn supply roller 11 and the second yarn supply roller 16 to the yarn hanging speed, the stretching rate of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16 is increased compared to the production. In addition, the case of high-speed production of the yarn Y means that the production speed of the second yarn supply roller 16 is more than 1000m / min.

[0077] The control unit 40 is also electrically connected to a winding start button 37. A winding start button 37 is provided for each winding device 21. That is, each spindle is provided with a winding start button 37. The winding start button 37 is configured to be operable by an operator. The winding start button 37 is used to input an instruction to start winding the yarn Y through the winding device 21. When the winding start button 37 is operated, a signal is sent to the control unit 40.

[0078] The control unit 40 determines that the winding of the spindle whose winding start button 37 is operated is completed when the winding start button 37 is operated. Then, the control unit 40 sets the wire feeding speed of the first wire feeding roller 11 and the wire feeding speed of the second wire feeding roller 16 of the spindle whose winding start button 37 is operated from the wire feeding speed to the production speed. Furthermore, the control unit 40 controls the winding device 21 of the spindle whose winding start button 37 is operated to start winding of the wire Y.

[0079] (Control process)

[0080] Next, refer to Figure 4 as well as Figure 5 The flowchart shown explains an example of the processing procedure performed by the control unit 40.

[0081] During the production of the yarn Y in the false twisting machine 1, the Figure 4 First, as shown in Figure 4As shown, the control unit 40 determines whether there is a spindle with broken yarn among the multiple spindles of the false twisting machine 1 based on the output signal from the yarn contact 23 (S11). The control unit 40 repeats the determination of S11 until it is determined that there is a spindle with broken yarn. When the control unit 40 determines that there is a spindle with broken yarn (S11: "Yes"), it executes the broken yarn processing (refer to Figure 5 )(S12).

[0082] like Figure 5 As shown, when the control unit 40 is processing when the wire is broken, it first stops the driving of the first wire supply roller 11, the second wire supply roller 16 and the winding device 21 (S21). Then, the control unit 40 determines whether the operating unit 24 is operated (S22). The control unit 40 repeats the judgment of S22 until it determines that the operating unit 24 is operated. When the control unit 40 determines that the operating unit 24 is operated (S22: "Yes"), the wire conveying speed of the first wire supply roller 11 and the second wire supply roller 16 is set to the wire hanging speed (S23). At this time, the first wire supply roller 11 and the second wire supply roller 16 in the stopped state start to rotate, and rotate at a speed that can convey the wire Y at the wire hanging speed.

[0083] After that, the control unit 40 determines whether the threading is completed based on the signal sent when the winding start button 37 is operated (S24). The control unit 40 repeats the determination of S24 until it is determined that the threading is completed. When the control unit 40 determines that the threading is completed (S24: "Yes"), the thread conveying speed of the first thread supply roller 11 and the second thread supply roller 16 is changed from the threading speed to the production speed (S25). Finally, the control unit 40 starts the winding device 21 to wind the thread Y (S26), and ends the processing when the thread is broken.

[0084] (Wire hanging process)

[0085] Here, the yarn hooking process performed by the operator in the false twisting machine 1 is described. When a broken yarn occurs during yarn production and the yarn Y needs to be hooked again, the operator operates the operating unit 24 (refer to Figure 3 ) is operated. As a result, the yarn feeding speed of the first yarn supply roller 11 and the second yarn supply roller 16 of the spindle for hanging the yarn becomes the yarn hanging speed.

[0086] The operator first hooks the yarn Y onto the second yarn supply roller 16, and then hooks the yarn Y onto the first yarn supply roller 11. After that, the operator hooks the yarn Y onto the false twist device 15. Thus, the tension of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16 can be detected by the tension sensor 22. Furthermore, the operator hooks the yarn Y onto the anti-twisting yarn guide 12. Thus, the yarn Y is set on the first heating device 13 and the cooling device 14.

[0087] Next, the operator sequentially hangs the yarn on the third yarn supply roller 18, sets the yarn on the second heating device 19, and hangs the yarn on the fourth yarn supply roller 20. Furthermore, the operator causes the suction section 36 provided in the winding section 4 to suck in the yarn Y. At this time, the yarn contact 23 detects that the yarn Y exists on the yarn channel between the fourth yarn supply roller 20 and the winding device 21. Finally, the operator operates the winding start button 37 (see Figure 3 ). Thus, after the yarn Y is hooked on the winding bobbin Bw of the winding device 21 by the wire hooking device (not shown), the winding device 21 starts to wind up the yarn Y.

[0088] (Features of the embodiment)

[0089] As described above, the false twisting machine 1 of the present embodiment is provided with a plurality of spindles, the spindles having a plurality of rollers (the first supply roller 11, the second supply roller 16, the third supply roller 18, and the fourth supply roller 20) for conveying the yarn Y, and the false twisting device 15 for twisting the yarn Y. The first supply roller 11 and the second supply roller 16 are two rollers adjacent to each other in the yarn traveling direction among the plurality of rollers, and are arranged to sandwich the false twisting device 15. The false twisting machine 1 comprises: a first motor 11a, which is provided at the first yarn supply roller 11 in each spindle and drives the first yarn supply roller 11; a second motor 16a, which is provided at the second yarn supply roller 16 in each spindle and drives the second yarn supply roller 16; a converter 11b, which is provided corresponding to the first motor 11a and can adjust the rotation speed of the first motor 11a; a converter 16b, which is provided corresponding to the second motor 16a and can adjust the rotation speed of the second motor 16a; an operating unit 24, which is provided corresponding to each spindle and can generate a signal; and a control unit 40, which can control the converters 11b and 16b provided at each spindle and control the yarn feeding speed of the first yarn supply roller 11 and the second yarn supply roller 16 individually for each spindle. When receiving the signal generated by the operating unit 24, the control unit 40 controls the converters 11b and 16b of the spindle that generated the received signal, i.e., the target spindle, and sets the wire conveying speed of the first wire supply roller 11 and the wire conveying speed of the second wire supply roller 16 of the target spindle to a speed different from the speed when producing the wire Y, i.e., the production speed, and to a speed when hanging the wire, i.e., the hanging wire speed.

[0090] According to the above configuration, the yarn feeding speed of the first yarn supply roller 11 and the yarn feeding speed of the second yarn supply roller 16 of the spindle for which the signal is generated by the operation unit 24 can be set to a yarn hanging speed different from the production speed. The yarn feeding speed between the first yarn supply roller 11 and the second yarn supply roller 16 depends on the yarn feeding speed of the second yarn supply roller 16 located on the downstream side of the yarn travel direction of the first yarn supply roller 11 and the second yarn supply roller 16. Therefore, by setting the yarn feeding speed of the second yarn supply roller 16 to the yarn hanging speed, the yarn feeding speed between the first yarn supply roller 11 and the second yarn supply roller 16 can be set to a speed suitable for hanging. In addition, by setting at least one of the yarn feeding speed of the first yarn supply roller 11 and the yarn feeding speed of the second yarn supply roller 16 to the yarn hanging speed, the stretching rate of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16 can be different from that during production. Therefore, the stretching rate of the yarn Y can be set to a stretching rate suitable for hanging. Therefore, the wire hanging operation can be performed satisfactorily.

[0091] In addition, in the false twisting machine 1 of the present embodiment, the control unit 40 controls the converters 11b and 16b corresponding to the first motor 11a and the second motor 16a respectively provided in the first wire supply roller 11 and the second wire supply roller 16 in the target spindle, and sets both the wire feeding speed of the first wire supply roller 11 and the wire feeding speed of the second wire supply roller 16 as the wire hanging speed. The wire feeding speed suitable for hanging and the elongation rate of the wire Y vary according to the type of the wire Y and the conditions of the wire processing. In this configuration, both the wire feeding speed between the first wire supply roller 11 and the second wire supply roller 16 and the elongation rate of the wire Y can be made suitable for hanging. Therefore, the wire feeding speed and the elongation rate of the wire Y can be changed corresponding to various wire types and processing conditions, and the wire hanging operation can be performed more satisfactorily.

[0092] In addition, in the false twisting machine 1 of the present embodiment, the operating unit 24 is configured to be operable by an operator and to generate a signal when being operated. In this configuration, when the operating unit 24 of a spindle is operated by an operator, the yarn conveying speed of the first yarn supply roller 11 and the second yarn supply roller 16 of the spindle can be set to a yarn hanging speed different from the production speed.

[0093] Furthermore, in the false twisting machine 1 of the present embodiment, each spindle is provided with one operating unit 24. When one operating unit 24 is operated, the control unit 40 sets both the yarn feeding speed of the first yarn supply roller 11 and the yarn feeding speed of the second yarn supply roller 16 as the yarn hanging speed. In this configuration, since only one operating unit 24 provided in the spindle for hanging the yarn is required to be operated, the operation is simple.

[0094] Furthermore, the false twisting machine 1 of the present embodiment is provided with a winding start button 37, which can obtain information for judging whether the threading is completed in each spindle. The control unit 40 judges whether the threading is completed based on the signal from the winding start button 37 for the spindle for which the thread feeding speed of the first thread supply roller 11 and the thread feeding speed of the second thread supply roller 16 are set to the threading speed, and when it is judged that the threading is completed, the thread feeding speed of the first thread supply roller 11 and the thread feeding speed of the second thread supply roller 16 of the spindle are set from the threading speed to the production speed. According to this configuration, the operation for returning from the threading speed to the production speed is not required.

[0095] In addition, the false twisting machine 1 of the present embodiment is provided with a winding device 21, which is provided at each spindle and winds up the yarn Y twisted by the false twisting device 15. The winding device 21 has a winding start button 37, which is configured to be operable by an operator and to input an instruction to start winding up the yarn Y. Then, the false twisting machine 1 determines that the yarn is hung when the winding start button 37 is operated. In this configuration, when the start of winding up of the yarn Y in the winding device 21 is instructed, the production speed can be set from the yarn hanging speed.

[0096] Furthermore, in the false twisting machine 1 of the present embodiment, the yarn hooking speed is lower than the production speed. According to this configuration, the rotation speeds of the first yarn supply roller 11 and the second yarn supply roller 16 are lowered during yarn hooking than during production, so yarn hooking is facilitated.

[0097] The embodiments of the present invention are described above based on the drawings, but it should be understood that the specific configuration is not limited to these embodiments. The scope of the present invention is not indicated by the description of the above embodiments but by the scope of the patent claims, and includes all changes within the meaning and scope equivalent to the scope of the patent claims.

[0098] In the above-mentioned embodiment, the control unit 40 sets the wire feeding speed of the first wire feeding roller 11 and the second wire feeding roller 16 to the wire hanging speed when receiving the signal generated by the operation unit 24. That is, the operation unit 24 functions as the "signal generating unit" of the present invention. However, for example, the control unit 40 may also set the wire feeding speed of the first wire feeding roller 11 and the second wire feeding roller 16 to the wire hanging speed when receiving the signal generated by the wire contact 23 capable of detecting wire breakage. In this case, the wire contact 23 functions as the "signal generating unit" of the present invention.

[0099] Furthermore, in the above-mentioned embodiment, the control unit 40 stops the driving of the first wire supply roller 11 and the second wire supply roller 16 of the spindle determined to have broken wire when it is determined that the wire breakage has occurred, but it is not limited to this. The control unit 40 may also maintain the production speed unchanged without stopping the driving of the first wire supply roller 11 and the second wire supply roller 16 when it is determined that the wire breakage has occurred. In this case, when the operating unit 24 is operated, the control unit 40 changes the wire conveying speed of the first wire supply roller 11 and the wire conveying speed of the second wire supply roller 16 of the spindle whose operating unit 24 is operated from the production speed to the wire hanging speed.

[0100] In addition, in the above-mentioned embodiment, the case where the wire hanging speed is lower than the production speed is described, but it is not limited to this. The wire hanging speed can be any speed different from the production speed. That is, the wire hanging speed can also be higher than the production speed. The wire hanging speed can also be zero. That is, the wire hanging can also be performed in a state where the first wire supply roller 11 and the second wire supply roller 16 are stopped.

[0101] In addition, in the above-mentioned embodiment, the first yarn supply roller 11 and the second yarn supply roller 16 are described as being yarn guide rollers that are driven by a motor to convey the yarn Y wound on the circumference, but the present invention is not limited thereto. The first yarn supply roller 11 and the second yarn supply roller 16 may also be clamping rollers composed of a driving roller driven by a motor disposed on each spindle and a driven roller that rotates with the rotation of the driving roller.

[0102] Furthermore, in the above embodiment, the first motor 11a provided in the first yarn supply roller 11 in each spindle and the second motor 16a provided in the second yarn supply roller 16 in each spindle are described, but the present invention is not limited thereto. It is sufficient that at least one of the first motor 11a and the second motor 16a is provided in each spindle.

[0103] Furthermore, in the above-mentioned embodiment, the case where both the yarn feeding speed of the first yarn feeding roller 11 and the yarn feeding speed of the second yarn feeding roller 16 are set to the yarn hanging speed when the operating unit 24 is operated is described, but the present invention is not limited thereto. As long as at least one of the yarn feeding speed of the first yarn feeding roller 11 and the yarn feeding speed of the second yarn feeding roller 16 is set to the yarn hanging speed when the operating unit 24 is operated,

[0104] Furthermore, in the above-mentioned embodiment, the case where the yarn Y is stretched and false-twisted between the first yarn supply roller 11 and the second yarn supply roller 16 is described, but it is not limited to this. That is, the yarn Y may be false-twisted while being overfed between the first yarn supply roller 11 and the second yarn supply roller 16. In this case, when hanging the yarn, the yarn may sometimes break due to the timing of the contraction caused by the false twisting and the overfeeding. Therefore, when hanging the yarn, it is preferred that the yarn Y is slightly stretched between the first yarn supply roller 11 and the second yarn supply roller 16. Therefore, for example, when the operating unit 24 is operated, only the first motor 11a is controlled and the yarn conveying speed of the first yarn supply roller 11 is set to a hanging speed that is lower than the production speed.

[0105] Furthermore, in the above-mentioned embodiment, when the operation unit 24 is operated, the stretching rate of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16 is different from that during production. However, the present invention is not limited thereto. Alternatively, when the operation unit 24 is operated, the stretching rate of the yarn Y between the first yarn supply roller 11 and the second yarn supply roller 16 is different from that during production.

[0106] In addition, in the above-mentioned embodiment, the case where each spindle is provided with one operating portion 24 is described, but the present invention is not limited to this. Figure 6 As shown, two operating parts 24a and 24b are provided in each spindle. In this case, when the operating part 24a on one side is operated, the wire feeding speed of the first wire feeding roller 11 is set to the wire hanging speed, and when the operating part 24b on the other side is operated, the wire feeding speed of the second wire feeding roller 16 is set to the wire hanging speed. According to this structure, the timing of setting the wire feeding speed of the first wire feeding roller 11 to the wire hanging speed and the timing of setting the wire feeding speed of the second wire feeding roller 16 to the wire hanging speed can be staggered by the judgment of the operator. Furthermore, for example, in the case where the operating part 24 can change the wire feeding speed of the roller from the production speed to the wire hanging speed, the operator can freely choose to operate both of the two operating parts 24a and 24b, operate only one side, or operate neither side. Therefore, the wire feeding speed between the first wire feeding roller 11 and the second wire feeding roller 16 and the stretching rate of the wire Y can be changed with a high degree of freedom according to the judgment of the operator.

[0107] Furthermore, in the above-mentioned embodiment, the operation part 24 is used to set the wire feeding speed of the roller to the wire hanging speed, but it is not limited to this. For example, the operation part 24 may be such that, whenever it is operated, the wire feeding speed of the roller of the spindle whose operation part 24 is operated is switched between the production speed and the wire hanging speed. In addition, for example, the operation part 24 may be such that, whenever it is operated, the wire feeding speed of the roller of the spindle whose operation part 24 is operated is switched according to the process of zero, wire hanging speed, production speed, and zero.

[0108] Furthermore, in the above-mentioned embodiment, the case where the determination of whether the wire hanging is completed in each spindle is based on the signal from the winding start button 37 is described. That is, the winding start button 37 is the "determination information acquisition unit" of the present invention. However, the method of determining whether the wire hanging is completed is not limited to this. As a method of determining whether the wire hanging is completed, there is the following method.

[0109] When a predetermined time has passed since the operation unit 24 was operated, it is determined that the thread hanging is completed (the operation unit 24 is a "determination information acquisition unit")

[0110] When a predetermined time has passed since the signal was generated by the thread contact 23, it is determined that the thread hanging is completed (the thread contact 23 is a "determination information acquisition unit").

[0111] When the tension of the yarn Y obtained by the tension sensor 22 is equal to or greater than a predetermined value, it is determined that the yarn is hooked (the tension sensor 22 is a "determination information acquisition unit").

[0112] When a predetermined time has passed since the tension of the yarn Y obtained by the tension sensor 22 becomes equal to or greater than a predetermined value, it is determined that the yarn is hooked (the tension sensor 22 is a "determination information acquisition unit").

[0113] When a predetermined time has passed since the yarn contact 23 detected the presence of the yarn Y on the yarn passage downstream of the second yarn supply roller 16 in the yarn running direction, it is determined that the yarn hooking is completed (the yarn contact 23 is a "determination information acquisition unit").

[0114] When the suction sensor 36a detects that the suction unit 36 ​​has sucked in the thread Y, it is determined that the thread is hooked (the suction sensor 36a is the "determination information acquisition unit").

[0115] In this case, each spindle is provided with an operation unit for returning the wire feeding speed of the roller from the wire hanging speed to the production speed, and the operator operates the operation unit after the wire hanging is completed.

Claims

1. A false twisting machine, comprising a plurality of spindles, each spindle having a plurality of yarn feeding devices for feeding yarns, and a false twisting device for twisting the yarns, wherein: When two thread feeding devices that are adjacent to each other in the thread running direction and are arranged to sandwich the false twisting device among the plurality of thread feeding devices are defined as the first thread feeding device and the second thread feeding device, The false twisting machine has: A motor is provided in at least one of the first and second yarn feeding devices in each spindle and drives the at least one yarn feeding device; A rotation speed adjustment device is provided corresponding to each of the above motors and is capable of adjusting the rotation speed of the corresponding motor; A signal generating unit is provided corresponding to each spindle and is capable of generating a signal; as well as The control unit is capable of controlling the rotation speed adjustment device provided on each spindle, and is capable of controlling the wire feeding speed of the at least one wire feeding device individually for each spindle. The above-mentioned control unit, when receiving the signal generated by the above-mentioned signal generating unit, controls the above-mentioned rotation speed adjusting device of the spindle that generated the received signal, i.e., the object spindle, thereby setting the wire conveying speed of the wire conveying device, i.e., the object wire conveying device, of at least one of the above-mentioned object spindles to a speed different from the speed when producing the wire, i.e., the production speed, and to a speed when hanging the wire, i.e., the hanging wire speed.

2. The false twisting machine according to claim 1, wherein: The motor is provided in each spindle in the first thread conveying device and the second thread conveying device, respectively. The control unit controls the rotation speed adjustment device corresponding to the motors respectively provided in the first wire feeding device and the second wire feeding device in the target spindle, and sets both the wire feeding speed of the first wire feeding device and the wire feeding speed of the second wire feeding device as the wire hanging speed.

3. The false twisting machine according to claim 1 or 2, wherein: The signal generating unit is capable of detecting a broken wire and generates a signal when a broken wire is detected.

4. The false twisting machine according to claim 2, wherein: The signal generating unit is an operating unit that is operable by an operator and generates a signal when operated.

5. The false twisting machine according to claim 4, wherein: Two of the above-mentioned operating parts are provided in each spindle. The control unit sets the wire feeding speed of the first wire feeding device to the wire hanging speed when one of the two operating units is operated, and sets the wire feeding speed of the second wire feeding device to the wire hanging speed when the other of the two operating units is operated.

6. The false twisting machine according to claim 4, wherein: One of the above-mentioned operating parts is provided in each spindle. The control unit sets both a wire feeding speed of the first wire feeding device and a wire feeding speed of the second wire feeding device as the wire hanging speed when one of the operation units is operated.

7. The false twisting machine according to any one of claims 1 to 6, wherein: The false twisting machine is provided with a judgment information acquisition unit, which can acquire information for judging whether the yarn hanging is completed in each spindle. The control unit determines whether the thread hanging is completed for the target spindle based on the signal from the determination information acquisition unit, and when it is determined that the thread hanging is completed, changes the thread feeding speed of the target thread feeding device of the target spindle from the thread hanging speed to the production speed.

8. The false twisting machine according to claim 7, wherein: The determination information acquisition unit can acquire the magnitude of the tension of the thread. The control unit determines that the thread hanging is completed when the magnitude of the thread tension acquired by the determination information acquisition unit is equal to or greater than a predetermined value.

9. The false twisting machine according to claim 7, wherein: The determination information acquisition unit can acquire the magnitude of the tension of the thread. The control unit determines that the thread hanging is completed when a predetermined time has passed since the magnitude of the thread tension acquired by the determination information acquisition unit becomes equal to or greater than a predetermined value.

10. The false twisting machine according to claim 7, wherein: The determination information acquisition unit can detect whether the thread exists on the thread passage downstream of the first thread feeding device and the second thread feeding device in the thread traveling direction. The control unit determines that the thread hanging is completed when a predetermined time has passed since the determination information acquisition unit detected that the thread exists on the thread passage.

11. The false twisting machine according to claim 7, wherein: The judgment information acquisition unit is the signal generation unit. The control unit determines that the thread hanging is completed when a predetermined time has passed since the signal generation unit generated the signal.

12. The false twisting machine according to claim 7, wherein: The false twisting machine is provided with a winding device, which is provided on each spindle and winds up the silk thread twisted by the false twisting device. The winding device includes a start instruction input unit, which is operable by an operator and can input an instruction to start winding the yarn. The determination information acquisition unit is the start instruction input unit. The control unit determines that the wire hanging is completed when the start instruction input unit is operated.

13. The false twisting machine according to claim 7, wherein: The false twisting machine is provided with a winding device, which is provided on each spindle and winds up the silk thread twisted by the false twisting device. The winding device has: a suction portion capable of sucking in the thread; and The suction detection unit is capable of detecting whether the above-mentioned suction unit has sucked in the thread, The determination information acquisition unit is the inhalation detection unit. The control unit determines that the thread hanging is completed when the suction detection unit detects that the thread is sucked by the suction unit.

14. The false twisting machine according to any one of claims 1 to 13, wherein: The above-mentioned wire hanging speed is lower than the above-mentioned production speed.

15. The false twisting machine according to any one of claims 1 to 14, wherein: The thread conveying device is a roller.

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