Yarn processing device

Abstract

The present invention enables the state of each of a plurality of threads to be accurately detected and the configuration to be simplified in a thread processing device. At least a portion of the plurality of yarn guides (45) of the yarn guide unit, which is in contact with the yarn, is electrically conductive or semi-conductive. The electrostatic quantity detection circuit (51) outputs a signal corresponding to a voltage value of a voltage generated in the yarn guide due to static electricity generated in the yarn guide. When a voltage difference (Dv), i.e., a difference between a voltage value indicated by a signal output from an electrostatic quantity detection circuit and a voltage value indicated by a signal output from an electrostatic quantity detection circuit provided for an adjacent yarn guide, is equal to or less than a threshold value (Dva) (YES in S102), a control unit (52) outputs a first signal (S103) indicating that the state of a yarn in the yarn guide is a predetermined state. When the voltage difference is greater than the threshold value (S102: NO), the control unit outputs a second signal indicating that the state of the yarn in the yarn guide is not the predetermined state (S104).

Description

Technical Field

[0001] This invention relates to a thread processing apparatus. Background Technology

[0002] Patent Document 1 describes a method in which multiple winding units constituting an automatic winding machine are each equipped with a thread monitoring device. This device is used to detect changes in thread thickness and foreign matter such as colored threads. The thread monitoring device in Patent Document 1 includes: a light-projecting section that projects light onto the thread path; two light-reflecting sections that receive light projected from the light-projecting section and reflected by the thread traveling within the thread path; and a light-transmitting section that receives light projected from the light-projecting section and transmitted through the thread traveling within the thread path. In other words, Patent Document 1 uses an optical sensor to detect the state of the thread.

[0003] In Patent Document 2, multiple current collectors are individually installed for each of the multiple traveling threads. Each current collector contacts the threads and detects the static electricity generated by contact with the traveling threads. Furthermore, in Patent Document 2, thread breakage is detected based on the static electricity detected in each current collector.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2016-124629

[0007] Patent Document 2: Japanese Patent Application Publication No. 48-98132 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In Patent Document 1, because multiple winding units are arranged with a relatively large interval, the spacing between the filaments is also relatively large, allowing the state of the filaments to be detected by an optical sensor as described above. However, in a spinning take-up machine, for example, the spacing between multiple filaments is small, so an optical sensor as described in Patent Document 1 may not accurately detect the state of each filament; for example, it may incorrectly detect the state of adjacent filaments, etc. Furthermore, it is sometimes difficult to ensure space for individually configuring multiple optical sensors for multiple filaments arranged with small intervals.

[0010] In Patent Document 2, because multiple dedicated current collectors are provided for each of the multiple wires, the number of parts increases accordingly. Furthermore, in Patent Document 2, space needs to be secured within the device for arranging the multiple current collectors. Therefore, the structure of the device in Patent Document 2 sometimes becomes complex.

[0011] The purpose of this invention is to provide a thread processing device that can accurately detect the state of each thread among multiple threads and can simplify the structure.

[0012] Methods for solving problems

[0013] The thread processing apparatus according to the first embodiment includes: a common roller on which multiple traveling threads are hooked in a row and shared by the multiple threads; a plurality of thread guides individually provided for each of the multiple threads, in contact with the corresponding thread, arranged in a row upstream or downstream of the common roller in the direction of travel of the multiple threads, and at least the contact portion in contact with the thread is conductive or semi-conductive; an electrostatic discharge detection unit that detects the amount of electrostatic discharge generated in the plurality of thread guides; and a control unit that outputs a thread status signal indicating the state of the thread in each thread guide based on the amount of electrostatic discharge detected by the electrostatic discharge detection unit, and outputs the thread status signal based on the difference between the amount of electrostatic discharge detected by the electrostatic discharge detection unit in each thread guide and the amount of electrostatic discharge in other thread guides.

[0014] According to this scheme, the control unit outputs a wire status signal indicating the state of the wire in each wire guide based on the difference between the amount of static electricity generated in each wire guide and the amount of static electricity generated in the other wire guides. Therefore, the state of the wire in the wire guide can be detected based on the wire status signal.

[0015] In a thread handling apparatus equipped with a shared roller for multiple threads, the spacing between the threads suspended on the shared roller is typically minimized to suppress axial elongation of the shared roller. In this case, the spacing between multiple guides arranged in a row upstream or downstream of the shared roller in the direction of thread travel is small. Therefore, when optical sensors are used to detect the thread state, unlike in this embodiment, it is sometimes impossible to accurately detect the state of each thread at the location where the multiple guides are positioned; for example, the state of adjacent threads may be incorrectly detected. Furthermore, it is sometimes difficult to ensure space for individual optical sensors for multiple guides arranged at small intervals.

[0016] In this solution, a yarn status signal is output based on the difference between the electrostatic charge in each yarn guide and the electrostatic charge in another yarn guide, as detected by the electrostatic charge detection unit. This allows for accurate detection of the yarn status in each of multiple yarn guides arranged at small intervals.

[0017] Furthermore, in cases where a dedicated contact component is separately installed to generate static electricity through contact with the thread, and the amount of static electricity generated in the contact component is detected, the number of parts increases, and space needs to be secured for the contact component, making the structure of the thread handling device more complex. In contrast, in this solution, in a thread handling device with multiple thread guides, the state of the thread in each thread guide can be detected based on the difference between the amount of static electricity in each thread guide and the amount of static electricity in the other thread guides, as detected by the static electricity detection unit. Therefore, compared to the case of separately installing the aforementioned dedicated contact component, the structure of the thread handling device can be simplified.

[0018] According to the second embodiment, the thread processing apparatus is configured such that, in the thread processing apparatus according to the first embodiment, the control unit outputs the thread status signal based on the difference between the amount of static electricity detected by the static electricity detection unit in each thread guide and the amount of static electricity in the adjacent thread guides of that thread guide.

[0019] When the state of the threads in multiple guides is the same, there is a high probability that the difference between the static electricity in each guide and the static electricity in adjacent guides is minimized. Furthermore, when the state of the threads in a particular guide changes, there is a high probability that the difference between the static electricity in that guide and the static electricity in adjacent guides increases. Therefore, in this solution, the control unit outputs a thread state signal based on the difference between the static electricity in each guide and the static electricity in adjacent guides. This allows the state of the threads in each of the multiple guides to be detected based on the thread state signal.

[0020] According to the third embodiment, the thread processing apparatus is configured such that, in the thread processing apparatus according to the first or second embodiment, the electrostatic quantity detection unit detects the electrostatic quantity by detecting the voltage or current generated by the electrostatic discharge generated in the thread guide, and the control unit outputs the thread status signal based on the difference between the voltage or current in each thread guide detected by the electrostatic quantity detection unit and the voltage or current in the thread guides other than that thread guide.

[0021] According to this scheme, the amount of static electricity generated in each wire guide is detected by detecting the voltage or current generated by static electricity generated in each wire guide. The control unit outputs a wire status signal based on the difference between the voltage or current generated by static electricity generated in each wire guide and the voltage or current generated by static electricity generated in wire guides other than that wire guide. Thus, the status of the wire in each wire guide of multiple wire guides can be detected based on the wire status signal.

[0022] The thread processing apparatus according to the fourth embodiment is configured such that, in any one of the first to third embodiments, it includes: a plurality of twisting sections, each individually provided for the plurality of threads and twisting the threads; a plurality of upstream support threads serving as the plurality of thread guides, each individually provided for the plurality of threads and supporting the threads upstream of the plurality of twisting sections in the direction of travel of the plurality of threads; and a plurality of downstream support threads serving as the plurality of thread guides, each individually provided for the plurality of threads and supporting the threads downstream of the plurality of twisting sections in the direction of travel of the plurality of threads, wherein the electrostatic quantity detection unit detects at least one of the electrostatic quantity generated in the plurality of upstream support threads and the electrostatic quantity generated in the plurality of downstream support threads, and uses this as the electrostatic quantity generated in the plurality of thread guides.

[0023] Typically, the spacing between multiple interlocking sections is small, and correspondingly, the spacing between multiple upstream support guides and multiple downstream support guides is also small. In this solution, at least one of the static electricity generated in the multiple upstream support guides and the static electricity generated in the multiple downstream support guides is detected as the static electricity generated in the multiple guides. Furthermore, the control unit outputs a yarn status signal based on at least one of the differences between the static electricity in each upstream support guide and the static electricity in other upstream support guides, and the differences between the static electricity in each downstream support guide and the static electricity in other downstream support guides. Thus, the state of the yarn in each of the multiple guides can be detected based on the yarn status signal.

[0024] The thread processing apparatus according to the fifth embodiment is configured such that, in any one of the first to fourth embodiments of the thread processing apparatus, it includes an insulating part, which is insulating and insulates the conductive or semi-conductive portions of adjacent thread guides from each other.

[0025] According to this solution, since the conductive or semi-conductive parts of adjacent wire guides are insulated from each other by insulating parts, the static electricity generated by the contact between each wire guide and the wire does not affect the static electricity generated by the contact between adjacent wire guides and the wire.

[0026] According to the sixth embodiment, the wire processing apparatus is configured such that, in the wire processing apparatus according to the fifth embodiment, the wire guide is generally conductive or semi-conductive, and the insulating portion is disposed between adjacent wire guides.

[0027] According to this solution, when the wire guide as a whole is conductive or semi-conductive, the wire guides can be insulated from each other by means of insulating parts disposed between adjacent wire guides.

[0028] The thread processing apparatus according to the seventh embodiment is configured such that, in the thread processing apparatus according to the fifth embodiment, the thread guide has: a first thread guide portion, which includes a contact portion that contacts the thread and has electrical or semi-electrical properties; and a second thread guide portion, which serves as the insulating portion, and covers the first thread guide portion.

[0029] According to this scheme, the first wire guide portions of adjacent wire guides, which are conductive or semi-conductive, are insulated from each other by the second wire guide portions, which are insulating.

[0030] The thread processing apparatus according to the eighth embodiment is configured such that, in any of the first to sixth embodiments, it includes a support member that is conductive and supports the plurality of thread guides, and the support member is insulated from each thread guide.

[0031] In this design, since the conductive or semi-conductive wire guide is insulated from the conductive support component, no current flows from the wire guide to the support component when static electricity is generated in the wire guide. Therefore, the amount of static electricity generated in the wire guide due to contact between the wire and the wire guide is increased, making it easier to detect the wire's condition based on the difference in the amount of static electricity generated in multiple wire guides.

[0032] According to the ninth embodiment, the thread processing apparatus is configured such that, in any one of the first to fourth embodiments, the plurality of thread guides are semi-conductive, and the thread processing apparatus includes a support member that is conductive and supports the plurality of thread guides, with each thread guide being in communication with the support member.

[0033] From the perspective of detecting the state of the yarn based on the difference between the static electricity in each yarn guide and the static electricity in another yarn guide, it is preferable that the amount of static electricity generated in the yarn guide due to contact with the yarn is large. On the other hand, considering the influence of static electricity generated in the yarn guide on the yarn, it is preferable that the amount of static electricity generated in the yarn guide is not too large.

[0034] In this design, a semi-conductive wire guide is connected to a conductive support component. Therefore, when static electricity is generated in the wire guide, current flows from the wire guide to the support component. This prevents the amount of static electricity generated in the wire guide from becoming excessive. On the other hand, because the wire guide is semi-conductive, current is less likely to flow from the wire guide to the support component compared to when the wire guide is conductive. Therefore, the amount of static electricity generated in the wire guide due to contact between the wire and the wire guide is not too small, and the state of the wire in each wire guide can be detected by the difference between the amount of static electricity generated in each wire guide and the amount of static electricity generated in other wire guides.

[0035] Invention Effects

[0036] According to the present invention, the control unit outputs a thread status signal based on the difference between the amount of static electricity generated in each thread guide and the amount of static electricity generated in another thread guide. Therefore, the state of the thread in each of a plurality of thread guides arranged at small intervals can be accurately detected based on the thread status signal. Furthermore, compared to the case where a dedicated contact member is separately provided for contacting the traveling thread to detect the amount of static electricity, the structure of the thread handling apparatus can be simplified. Attached Figure Description

[0037] Figure 1 This is a general configuration diagram of the plurality of oil supply guides and the stretching section of the spinning and winding machine according to an embodiment of the present invention.

[0038] Figure 2 This is a general configuration diagram of the traction section and winding section of the spinning and winding machine according to an embodiment of the present invention.

[0039] Figure 3 This is a cross-sectional view of the guide wire unit in this embodiment, perpendicular to the direction of the wire's travel.

[0040] Figure 4 (a) is a block diagram showing the electrical connections of the wire guide, electrostatic detection circuit, and control unit according to an embodiment of the present invention. Figure 4 (b) is a flowchart of the process for processing the output of the wire status signal in an embodiment of the present invention.

[0041] Figure 5 A flowchart illustrating the process of processing the output wire status signal in Modification 1 is provided.

[0042] Figure 6 This is a cross-sectional view of the guide wire unit in Modified Example 2, with the cross-section orthogonal to the direction of the wire's travel.

[0043] Figure 7 This is a cross-sectional view of the guide wire unit in Modified Example 3, with the cross-section orthogonal to the direction of the wire's travel.

[0044] Explanation of reference numerals in the attached figures

[0045] 1: Spinning and winding machine (thread processing device)

[0046] 8: Cross-connector wire guide (cross-connection section)

[0047] 9. 9A to 9F: Guide wire unit

[0048] 45: Wire guide

[0049] 45a: First wire guide section

[0050] 45b: Second wire guide section (insulation part)

[0051] 46: Supporting components

[0052] 47: Insulating components

[0053] 48: Insulating components (insulating parts)

[0054] 51: Electrostatic discharge detection circuit (electrostatic discharge detection unit)

[0055] 52: Control Department Detailed Implementation

[0056] The preferred embodiments of the present invention will be described below.

[0057] <General Components of a Spinning and Winding Machine>

[0058] like Figure 1 and Figure 2 As shown, the spinning and winding machine 1 (the "filament processing device" in this invention) according to this embodiment includes multiple oil supply guides 10, a stretching section 3, a traction section 4, and a winding section 5. It should be noted that, hereinafter, as... Figure 1 and Figure 2 The vertical, forward / backward, and left / right directions are defined as shown in the diagram. The vertical direction is the direction in which gravity acts. The forward / backward, left / right, and vertical directions are orthogonal to each other. Furthermore, as follows... Figure 1 and Figure 2 The diagram illustrates the definitions of the top and bottom sides in the vertical direction, the left and right sides in the horizontal direction, and the front and back sides in the front-back direction.

[0059] <Fuel supply guide>

[0060] like Figure 1 As shown, the spinning section 2 is positioned above the spinning and winding machine 1. The spinning section 2 has multiple spinning units 2A arranged in a row along the left-right direction. Each spinning unit 2A spins multiple filaments F made of molten fiber material such as polyester for forming a single filament Y.

[0061] Multiple oil supply guides 10 are individually provided for multiple spinning units 2A. That is, each oil supply guide 10 is provided for a single yarn Y composed of multiple filaments F spun from the corresponding spinning unit 2A. The multiple oil supply guides 10 are arranged in a row along the left-right direction. The oil supply guide 10 bundles the multiple filaments F spun from the corresponding spinning unit 2A into a single yarn Y and applies oil to the yarn Y.

[0062] <Stretching section>

[0063] The stretching section 3 is positioned below the plurality of oil supply guides 10. The stretching section 3 includes five guide rollers 11a to 11e. These five guide rollers 11a to 11e are rollers whose axial direction is parallel to the front-back direction, and are each driven to rotate by a motor (not shown). Furthermore, each of the five guide rollers 11a to 11e has an internal heater (not shown). The five guide rollers 11a to 11e are housed within a cuboid-shaped insulation box 12. A wire inlet 12a for guiding multiple wires Y into the insulation box 12 and a wire outlet 12b for guiding multiple wires Y from inside the insulation box 12 to the outside are formed on the right side wall of the insulation box 12.

[0064] Multiple filaments Y coated with oil in multiple oil supply guides 10 are arranged in a row by multiple guides 45 of guide units 9A and 9B, and guided from the filament inlet 12a into the heat preservation box 12 by guide roller 13.

[0065] More specifically, the wire guide unit 9A is disposed below the plurality of oil supply guides 10. The wire guide unit 9A has a plurality of wire guides 45 arranged in a row in the left-right direction. The plurality of wire guides 45 of the wire guide unit 9A are individually provided for a plurality of wires Y. The plurality of wires Y coated with oil in the plurality of oil supply guides 10 are arranged in a row in the left-right direction through the plurality of wire guides 45 of the wire guide unit 9A.

[0066] The wire guide unit 9B is positioned below the wire guide unit 9A. The wire guide unit 9B has a plurality of wire guides 45 arranged in a row along the front-to-back direction. The plurality of wire guides 45 of the wire guide unit 9B are individually configured for multiple wires Y. The multiple wires Y have their orientation changed between the wire guide units 9A and 9B, and are arranged in a row along the front-to-back direction by passing through the plurality of wire guides 45 of the wire guide unit 9B.

[0067] The guide roller 13 is a roller parallel to the front-to-back direction and is positioned below the yarn guide unit 9B. Multiple yarns Y, arranged in a row along the front-to-back direction by multiple yarn guides 45 of the yarn guide unit 9B, are transported by the guide roller 13 and guided into the insulation box 12 from the yarn inlet 12a. Furthermore, the multiple yarns Y guided into the insulation box 12 are sequentially wound relative to the five guide rollers 11a to 11e.

[0068] The three guide rollers 11a to 11c on the upstream side are heating rollers used for preheating before stretching multiple filaments Y. The surface temperature of the guide rollers 11a to 11c is set to a temperature above the glass transition temperature of the filament Y. The multiple filaments Y, which are introduced into the heat preservation box 12 from the filament inlet 12a, are preheated to a stretchable temperature, i.e., a temperature above the glass transition temperature, during the conveying process by the three guide rollers 11a to 11c on the upstream side.

[0069] The two downstream guide rollers 11d and 11e are heating rollers used for heat setting of the stretched multiple filaments Y. The surface temperature of the guide rollers 11d and 11e is set to a higher temperature than the surface temperature of the three upstream guide rollers 11a to 11c. Furthermore, the surface speed of the two downstream guide rollers 11d and 11e is higher than the surface speed of the three upstream guide rollers 11a to 11c.

[0070] Furthermore, the multiple filaments Y, preheated by guide rollers 11a to 11c, are stretched by the surface velocity difference between guide rollers 11c and 11d. Additionally, while being conveyed by the two downstream guide rollers 11d and 11e, the multiple filaments Y are heated to a higher temperature, and their stretched state is heat-set. The stretched multiple filaments Y, as described above, are then guided out of the insulation box 12 from the filament outlet 12b. The multiple filaments Y guided out of the insulation box 12 from the filament outlet 12b are then conveyed to the traction unit 4 by guide roller 14.

[0071] In the thread path between the thread outlet 12b and the guide roller 14, a plurality of interlacing guides 8 and guide units 9C and 9D are arranged. The plurality of interlacing guides 8 are individually configured for multiple threads Y and arranged in a row along the front-to-back direction. The interlacing guides 8 interlac the threads Y. It should be noted that the configuration of the interlacing guides 8 is well known, therefore further detailed description is omitted here. Furthermore, in this embodiment, the interlacing guides 8 correspond to the "interlacing section" in this invention.

[0072] The wire guide unit 9C is positioned upstream of the plurality of interlacing wire guides 8 in the wire path. The wire guide unit 9D is positioned downstream of the plurality of interlacing wire guides 8 in the wire path. Wire guide units 9C and 9D each have a plurality of wire guides 45 arranged in a row along the front-back direction at approximately the same intervals as the plurality of interlacing wire guides 8. The plurality of wire guides 45 in wire guide units 9C and 9D are individually configured for a plurality of wires Y. The plurality of wires Y are arranged in a row along the front-back direction by the plurality of wire guides 45 in wire guide unit 9C and the plurality of wire guides 45 in wire guide unit 9D. Furthermore, the plurality of wire guides 45 in wire guide units 9C and 9D respectively support the upstream and downstream portions of the plurality of wires Y located at the intersection of the plurality of interlacing wire guides 8. It should be noted that, in this embodiment, the plurality of wire guides 45 of the wire guide unit 9C are equivalent to the "upstream support wire guide" of the present invention, and the plurality of wire guides 45 of the wire guide unit 9D are equivalent to the "downstream support wire guide" of the present invention.

[0073] The guide roller 14 is a roller parallel to the front-to-back direction and is located downstream of the yarn path adjacent to the yarn guide unit 9D. Multiple yarns Y, arranged in a row in the front-to-back direction by the multiple yarn guides 45 of the yarn guide unit 9D, are fed to the traction unit 4 by the guide roller 14.

[0074] Traction Unit

[0075] like Figure 2 As shown, the traction unit 4 includes a guide roller 21 and a guide roller 22.

[0076] The guide roller 21 is a roller with its axial direction parallel to the left-right direction, located below the guide roller 14. Furthermore, a guide unit 9E is arranged in the yarn path, located vertically between the guide roller 14 and the guide roller 21, immediately upstream of the guide roller 21. The guide unit 9E has multiple guides 45 arranged in a row along the left-right direction. Each guide 45 in the guide unit 9E is individually configured for multiple yarns Y. The multiple yarns Y have their orientation changed between the guide roller 14 and the guide unit 9E, and after being arranged in a row along the left-right direction by the multiple guides 45 in the guide unit 9E, they are pulled by the guide roller 21. The guide roller 21 is driven to rotate by a motor (not shown), conveying the multiple yarns Y arranged in the left-right direction by the multiple guides 45 in the guide unit 9E to the guide roller 22.

[0077] The guide roller 22 is a roller with its axial direction parallel to the left-right direction, and is positioned rearward than the guide roller 21. Furthermore, a guide unit 9F is disposed in the yarn path immediately upstream of the guide roller 22. The guide unit 9F has multiple guides 45 arranged in a row along the left-right direction. The guide unit 9F is individually configured for multiple yarns Y. The multiple yarns Y are arranged in a row in the left-right direction by passing through the multiple guides 45 of the guide unit 9F. The guide roller 22 is driven to rotate by a motor (not shown), conveying the multiple yarns Y arranged in the left-right direction by the multiple guides 45 of the guide unit 9F to the take-up unit 5.

[0078] Furthermore, the traction unit 4 also includes a guide rail 23, which extends in a manner that the further back it is in the front-rear direction, the higher it is in the vertical direction. The guide roller 22 and the guide unit 9F are mounted on a slider 24 that can move along the guide rail 23. The slider 24 is connected to a motor (not shown) via a pulley (not shown), a belt (not shown), etc. When the motor is driven, the slider 24 moves along the guide rail 23. Thus, the guide roller 22 and the guide unit 9F can... Figure 2 The solid line indicates the rear position during the winding of thread Y, and... Figure 2 The single-dot dashed line indicates the movement between the positions near the front of the guide roller 21 during wire hanging.

[0079] <Curling Section>

[0080] The take-up section 5 includes multiple traverse devices 30, a turntable 71, contact rollers 73, and two bobbin supports 72. The multiple traverse devices 30 are individually configured for multiple yarns Y and are arranged in a row along the front-to-back direction. Each traverse device 30 has a fulcrum guide 61 and a traverse guide 62.

[0081] Multiple fulcrum guides 61 of multiple traverse devices 30 are arranged in a row along the front-rear direction. Each fulcrum guide 61 of the multiple traverse devices 30 is mounted on a separate slider 67. The sliders 67 are supported so as to be movable along a guide rail 68 extending in the front-rear direction. Furthermore, the sliders 67 are connected to a cylinder (not shown). When the cylinder is driven, the sliders 67 move along the guide rail 68 in the front-rear direction. Thus, the multiple fulcrum guides 61 can be moved between a position where they are separated from each other in the front-rear direction during yarn Y winding and a forward-biased position during yarn hanging.

[0082] like Figure 2 As shown, multiple traverse guides 62 of the multiple traverse devices 30 are positioned downstream of the corresponding pivot guide 61 in the direction of travel of the yarn Y, and are arranged in a row in the front-back direction. The traverse guides 62 are driven by a motor (not shown) to cause the yarn Y to traverse in the front-back direction with the pivot guide 61 as the center.

[0083] The turntable 71 is a circular plate-shaped component with its axis parallel to the front-back direction. The turntable 71 is driven to rotate by a motor (not shown). Two bobbin supports 72, each with its axis parallel to the front-back direction, are rotatably supported on the upper and lower ends of the turntable 71. Multiple bobbins B, individually configured for multiple threads Y, are arranged and mounted on each bobbin support 72 along the front-back direction. Furthermore, each of the two bobbin supports 72 is independently driven to rotate by a motor (not shown).

[0084] Therefore, when the upper bobbin support 72 is driven to rotate, the thread Y, which is laterally moved by the lateral movement device 30, is wound onto the bobbin B to form a roll P. Furthermore, after the roll P is formed, the upper and lower positions of the two bobbin supports 72 are switched by rotating the turntable 71. As a result, the bobbin support 72, previously located on the lower side, moves to the upper side, allowing the thread Y to be wound onto the bobbin B mounted on that bobbin support 72 to form the roll P. Additionally, the bobbin support 72, previously located on the upper side, moves to the lower side, allowing the roll P to be retrieved.

[0085] The contact roller 73 is a roller whose axial direction is parallel to the front-back direction. The contact roller 73 is disposed above the upper bobbin support 72. The contact roller 73 applies contact pressure to the surface of the multiple rolls P formed by winding yarn Y on the bobbin B mounted on the upper bobbin support 72.

[0086] <Wire Guide Unit>

[0087] Next, we will refer to Figure 3 The guide wire units 9A to 9F described above are explained in detail. Here, Figure 3 The guide unit 9 in the middle refers to guide units 9A to 9F. Furthermore, regarding... Figure 3 The direction of the wire arrangement is left-right when the wire guide unit 9 is 9A, 9E, or 9F, and front-back when the wire guide unit 9 is 9B, 9C, or 9D. Furthermore, regarding... Figure 3 The orthogonal direction of the arrangement (the direction orthogonal to the arrangement direction) is the front-back direction when the wire guide unit 9 is wire guide unit 9A, 9E, or 9F, the left-right direction when the wire guide unit 9 is wire guide unit 9B, and the up-down direction when the wire guide unit 9 is wire guide unit 9C or 9D.

[0088] like Figure 3As shown above, the guide unit 9 has multiple guides 45, each individually configured for multiple filaments Y and arranged in a row along the filament arrangement direction. Here, for the miniaturization of the spinning take-up machine 1, the spacing between the multiple filaments Y suspended on rollers 11a to 11d, 13, 14, 21, and 22 is made as small as possible (e.g., about 8 mm), thereby minimizing the axial length of rollers 11a to 11d, 13, 14, 21, and 22. Correspondingly, the spacing between the guides 45 in the guide unit 9 is also approximately the same as the spacing between the multiple filaments Y suspended on rollers 11a to 11d, 13, 14, 21, and 22, for example, a small spacing of about 8 mm. However, the multiple guides 45 in the guide unit 9 are arranged with gaps between them, so that the guides 45 are not directly connected to each other. It should be noted that, in this embodiment, rollers 11a to 11d, 13, 14, 21, and 22 are equivalent to the "common rollers" of the present invention.

[0089] Furthermore, each wire guide 45 is configured in a roughly U-shape with one end open in an orthogonal arrangement, enabling the wire Y to be guided in from one end in the orthogonal arrangement. The wire guide 45 is conductive or semi-conductive and is in contact with the wire Y.

[0090] In this embodiment, conductivity means that the volume resistivity of a material, such as a metal, is 10⁻⁶. -8 It is made of materials with a volume resistivity of less than Ω·cm. Furthermore, semi-conductivity refers to materials with a volume resistivity of 10 Ω·cm, such as zirconium oxide. -7 Ω·cm or less and greater than 10 -8 It is made of a material with an Ω·cm. In either the case where the wire guide 45 is conductive or semi-conductive, current will flow through the wire guide 45 due to static electricity generated by the contact between the traveling wire Y and the wire guide 45. However, in the case where the wire guide 45 is semi-conductive, the magnitude of the current is smaller than that in the case where the wire guide 45 is conductive.

[0091] Furthermore, at the other end of the plurality of wire guides 45 in the wire guide unit 9, in the orthogonal direction of arrangement, a support member 46 extending along the wire arrangement direction is supported. The support member 46 is conductive. In addition, an insulating member 47 with insulating properties is disposed between the plurality of wire guides 45 and the support member 46, and each wire guide 45 is insulated from the support member 46 by the insulating member 47. Furthermore, an insulating member 48 is disposed between adjacent wire guides 45 in the wire arrangement direction, and adjacent wire guides 45 are insulated from each other by the insulating member 48. It should be noted that in this embodiment, the insulating member 48 corresponds to the "insulating part" of the present invention. Here, in this embodiment, having insulating properties means having a volume resistivity of 10, for example, resin. 8 Made of materials with an Ω·cm or higher.

[0092] It should be noted that, for convenience, the wire guide units 9A to 9F are described here as having the same structure, but this is not a limitation. For example, the shape of the wire guide 45 may differ between the wire guide units 9A and 9F.

[0093] <Detection of the condition of the thread in the guide>

[0094] In this embodiment, the state of the yarn Y in the plurality of yarn guides 45 of the yarn guide unit 9 (which is at least one of the yarn guide units 9A to 9F) is detected.

[0095] like Figure 4 As shown in (a), in addition to the above-described structure, the spinning take-up machine 1 also includes multiple electrostatic discharge detection circuits 51 and a control unit 52. Each electrostatic discharge detection circuit 51 is individually provided for each of the multiple guides 45 of at least one of the guide units 9A to 9F, and is electrically connected to the corresponding guide 45. The electrostatic discharge detection circuit 51 detects the voltage generated in the guide 45 due to static electricity generated therein, and outputs a signal corresponding to the voltage value. Here, the greater the amount of static electricity generated in the guide 45 due to contact with the yarn Y, the greater the voltage value generated in the guide 45 by that static electricity. It should be noted that in this embodiment, the combination of multiple electrostatic discharge detection circuits 51 corresponds to the "electrostatic discharge detection unit" of the present invention.

[0096] The control unit 52 outputs a wire state signal indicating whether the state of the wire Y in the wire guide 45 is in a predetermined state, based on the signals output from each of the plurality of electrostatic discharge detection circuits 51. Here, a predetermined state for the wire Y in the wire guide 45 means, for example, that the tension of the wire Y in the wire guide 45 is within the normal range and that the wire Y has not broken near the wire guide 45. Conversely, a non-predetermined state for the wire Y in the wire guide 45 means, for example, that the tension of the wire Y in the wire guide 45 is outside the normal range and that the wire Y has broken near the wire guide 45.

[0097] It should be noted that the control unit 52 also controls the operation of the motor (not shown) of the spinning take-up machine 1, but detailed descriptions are omitted here.

[0098] Next, the output of the aforementioned wire status signal by the control unit 52 will be described in detail. The control unit 52, for each of the plurality of electrostatic discharge detection circuits 51, according to... Figure 4 The flowchart in (b) is processed to output the aforementioned thread status signal. For Figure 4The flowchart of (b) is described in detail, in which the control unit 52 first calculates the voltage difference Dv (S101), which is the difference between the voltage value output from the electrostatic quantity detection circuit 51 and the voltage value output from the electrostatic quantity detection circuit 51 provided for the adjacent wire guide 45.

[0099] At this time, regarding the electrostatic discharge detection circuit 51 provided for the wire guide 45 on the side furthest in the wire arrangement direction of the wire guide unit 9, the difference between the voltage value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 and the voltage value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 on the other side adjacent to the wire guide 45 in the wire arrangement direction is calculated as the voltage difference Dv.

[0100] Furthermore, regarding the electrostatic discharge detection circuit 51 provided for the wire guide 45 on the other side in the wire arrangement direction of the wire guide unit 9, the difference between the voltage value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 and the voltage value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 adjacent to the wire guide 45 on one side in the wire arrangement direction is calculated as the voltage difference Dv.

[0101] Furthermore, regarding the electrostatic discharge detection circuit 51 provided for the wire guide 45 in the wire guide unit 9, excluding the wire guide 45 that is furthest to one side in the wire arrangement direction and the wire guide 45 that is furthest to the other side in the wire arrangement direction, the difference between the voltage value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 and the voltage value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 that is adjacent to the wire guide 45 on one side or the other side in the wire arrangement direction is calculated as the voltage difference Dv. Alternatively, for example, the voltage difference Dv can be calculated as the average of the difference between the voltage value represented by the signal output from the electrostatic detection circuit 51 provided for the wire guide 45, the voltage value represented by the signal output from the electrostatic detection circuit 51 provided for the wire guide 45 on one side of the wire arrangement direction, and the voltage value represented by the signal output from the electrostatic detection circuit 51 provided for the wire guide 45 on the other side of the wire arrangement direction.

[0102] Next, the control unit 52 determines whether the voltage difference Dv is below the threshold Dva (S102). If the voltage difference Dv is below the threshold Dva (S102: Yes), the control unit 52 outputs a first signal indicating that the state of the wire Y in the wire guide 45 is a predetermined state as a wire state signal (S103). If the voltage difference Dv is greater than the threshold Dva (S102: No), the control unit 52 outputs a second signal indicating that the state of the wire Y in the wire guide 45 is not a predetermined state as a wire state signal (S104). After outputting the wire state signals in S103 and S104, the process returns to S101.

[0103] <Effect>

[0104] In this embodiment, the control unit 52 outputs a yarn state signal based on the difference between the amount of static electricity generated in each yarn guide 45 of the yarn guide unit 9 and the amount of static electricity generated in the other yarn guide 45 of the same yarn guide unit 9. Therefore, the state of the yarn Y in the yarn guide 45 can be detected based on the yarn state signal.

[0105] In the spinning take-up machine 1, which has rollers 11a to 11d, 13, 14, 21, and 22 shared by multiple filaments Y, the spacing between the multiple filaments Y hanging on the rollers 11a to 11d, 13, 14, 21, and 22 is typically minimized to suppress the axial elongation of the rollers 11a to 11d, 13, 14, 21, and 22. In this case, the spacing between the multiple guides 45 of the guide units 9A to 9F, which are arranged in a row upstream or downstream of the rollers 11a to 11d, 13, 14, 21, and 22 in the direction of travel of the multiple filaments Y, is small. Therefore, when using optical sensors to detect the state of the filaments Y, unlike in this invention, the state of the filaments Y is sometimes not accurately detected; for example, the state of adjacent filaments Y may be incorrectly detected. Furthermore, in the spinning take-up machine 1, it is sometimes difficult to ensure space for individually installing optical sensors for multiple filaments arranged at small intervals. For example, in the case of multiple guide wires 45 arranged at intervals of about 8 mm as described above, it is difficult to set them at intervals of less than 10 mm if a general optical sensor is desired to detect the state of the wire Y.

[0106] In this embodiment, the state of the wire Y in each wire guide 45 is detected based on the difference between the amount of static electricity generated in each wire guide 45 and the amount of static electricity generated in the other wire guide 45. Therefore, the state of the wire Y in each of the multiple wire guides 45 arranged at small intervals can be accurately detected.

[0107] Furthermore, in the case where a dedicated contact component is provided to generate static electricity through contact with the yarn Y, unlike the present invention, the number of parts increases, and space needs to be ensured for arranging the contact component, making the structure of the spinning take-up machine 1 more complex. In contrast, in the spinning take-up machine 1 equipped with a guide unit 9 including multiple guides 45, the state of the yarn Y is detected based on the difference between the amount of static electricity generated in each guide 45 and the amount of static electricity generated in the other guides 45. Therefore, compared to the case where the aforementioned dedicated contact component is provided separately, the structure of the spinning take-up machine 1 can be simplified.

[0108] Furthermore, when the state of the yarn Y in the multiple yarn guides 45 of a yarn guide unit 9 is the same, the difference between the static electricity in each yarn guide 45 and the static electricity in adjacent yarn guides 45 is likely to be minimal. Moreover, when the state of the yarn Y in a certain yarn guide 45 changes, the difference between the static electricity in that yarn guide 45 and the static electricity in adjacent yarn guides 45 is likely to increase. Therefore, in this embodiment, the control unit 52 outputs a yarn state signal based on the difference between the static electricity in each yarn guide 45 and the static electricity in adjacent yarn guides 45. Thus, the state of the yarn Y in the multiple yarn guides 45 can be detected based on the yarn state signal.

[0109] Furthermore, in this embodiment, the amount of static electricity generated in each wire guide 45 is detected by detecting the voltage generated in each wire guide 45 due to static electricity generated in the wire guide unit 9. A wire state signal is output based on the difference between the voltage generated by the static electricity in each wire guide 45 and the voltage generated by the static electricity in the other wire guide 45. Thus, the state of the wire Y can be detected based on the wire state signal.

[0110] Furthermore, in the spinning and winding machine 1, the spacing between the multiple interlacing guides 8 is usually small, and correspondingly, the spacing between the multiple guides 45 of the guide unit 9C arranged upstream of the interlacing guides 8 and the spacing between the multiple guides 45 of the guide unit 9D arranged downstream of the interlacing guides 8 are also small.

[0111] Therefore, in this embodiment, if the amount of static electricity generated in the plurality of wire guides 45 of the wire guide unit 9C is detected, and the control unit 52 outputs a wire state signal based on the difference in the amount of static electricity generated in the plurality of wire guides 45 of the wire guide unit 9C, then the state of the wire Y in the plurality of wire guides 45 of the wire guide unit 9C can be detected based on the wire state signal.

[0112] Similarly, in this embodiment, if the amount of static electricity generated in the plurality of wire guides 45 of the wire guide unit 9D is detected, and the control unit 52 outputs a wire state signal based on the difference in the amount of static electricity generated in the plurality of wire guides 45 of the wire guide unit 9D, then the state of the wire Y in the plurality of wire guides 45 of the wire guide unit 9D can be detected based on the wire state signal.

[0113] Furthermore, in this embodiment, the wire guide 45 is generally conductive or semi-conductive, and in contrast, an insulating member 48 is disposed between adjacent wire guides 45. This allows adjacent wire guides 45 to be insulated from each other by the insulating member 48, and static electricity generated from the contact between each wire guide 45 and the wire Y will not affect the static electricity generated from the contact between adjacent wire guides 45 and the wire Y.

[0114] Furthermore, in this embodiment, since the conductive or semi-conductive wire guide 45 is insulated from the conductive support member 46 by the insulating member 47, no current flows from the wire guide 45 to the support member 46 when static electricity is generated in the wire guide 45. As a result, the amount of static electricity generated due to the contact between the wire Y and the wire guide 45 increases, making it easier to detect the state of the wire Y based on the difference in the amount of static electricity in the wire guide.

[0115] <Variation Example>

[0116] The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical solution described.

[0117] In the above embodiment, the control unit 52 outputs a wire status signal based on the voltage difference Dv, wherein the voltage difference Dv is the voltage difference generated in the wire guide 45 due to static electricity generated when the wire Y contacts the wire guide 45, but is not limited to this.

[0118] In Modification 1, the electrostatic discharge detection circuit 51 detects the current generated by the static electricity generated in the wire guide 45 and outputs a signal corresponding to the current value. The greater the amount of static electricity generated in the wire guide 45, the greater the current value generated by that static electricity.

[0119] Furthermore, the control unit 52 controls each of the multiple electrostatic discharge detection circuits 51 according to... Figure 5 The flowchart is processed to output a yarn status signal. More specifically, firstly, the control unit 52 calculates the current difference Di (S201), which is the difference between the current value represented by the signal output from the electrostatic quantity detection circuit 51 and the current value represented by the signal output from the electrostatic quantity detection circuit 51 provided for the adjacent yarn guide 45.

[0120] At this time, regarding the electrostatic discharge detection circuit 51 provided for the wire guide 45 on the side furthest in the wire arrangement direction of the wire guide unit 9, the difference between the current value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 and the current value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 on the other side adjacent to the wire guide 45 in the wire arrangement direction is calculated as the current difference Di.

[0121] Furthermore, regarding the electrostatic discharge detection circuit 51 provided for the wire guide 45 on the other side in the wire arrangement direction of the wire guide unit 9, the difference between the current value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 and the current value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 adjacent to the wire guide 45 on one side in the wire arrangement direction is calculated as the current difference Di.

[0122] Furthermore, regarding the electrostatic discharge detection circuit 51 provided for the wire guide 45 in the wire guide unit 9, excluding the wire guide 45 that is furthest to one side in the wire arrangement direction and the wire guide 45 that is furthest to the other side in the wire arrangement direction, the difference between the current value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 and the current value represented by the signal output from the electrostatic discharge detection circuit 51 provided for the wire guide 45 that is adjacent to the wire guide 45 on one side or the other side in the wire arrangement direction is calculated as the current difference Di. Alternatively, for example, the following average value can be calculated as the current difference Di, which is the average of the difference between the current value represented by the signal output from the electrostatic detection circuit 51 provided for the wire guide 45, the current value represented by the signal output from the electrostatic detection circuit 51 provided for the wire guide 45 on one side of the wire arrangement direction, and the current value represented by the signal output from the electrostatic detection circuit 51 provided for the wire guide 45 on the other side of the wire arrangement direction.

[0123] Next, the control unit 52 determines whether the current difference Di is below the threshold Dia (S202). If the current difference Di is below the threshold Dia (S202: Yes), the control unit 52 outputs a first signal as a thread status signal (S203). If the current difference Di is greater than the threshold Dia (S202: No), the control unit 52 outputs a second signal as a thread status signal (S204). After the thread status signals in S203 and S204 are output, the processing returns to S201.

[0124] In Modification 1, the amount of static electricity generated in each wire guide 45 is detected by detecting the current generated in each wire guide 45 due to static electricity generated in each wire guide 45 of the wire guide unit 9. The control unit 52 outputs a wire state signal based on the difference between the current generated by the static electricity generated in each wire guide 45 and the current generated by the static electricity generated in the other wire guide 45. Therefore, the state of the wire Y in the multiple wire guides 45 can be detected based on the wire state signal.

[0125] Furthermore, in the above embodiment, the voltage difference Dv is calculated as the difference between the voltage value represented by the signal output from the electrostatic quantity detection circuit 51 provided for each wire guide 45 and the voltage value represented by the signal output from the electrostatic quantity detection circuit 51 provided for the adjacent wire guide 45, but is not limited thereto. Alternatively, the voltage difference Dv may also be calculated as the difference between the voltage value represented by the signal output from the electrostatic quantity detection circuit 51 provided for each wire guide 45 and the voltage value represented by the signal output from the electrostatic quantity detection circuit 51 provided for the wire guide 45 other than the adjacent wire guide 45.

[0126] Furthermore, in Modification 1, the current difference Di is calculated as the difference between the current value represented by the signal output from the electrostatic quantity detection circuit 51 provided for each wire guide 45 and the current value represented by the signal output from the electrostatic quantity detection circuit 51 provided for the adjacent wire guide 45, but this is not limited to this. Alternatively, the current difference Di can also be calculated as the difference between the current value represented by the signal output from the electrostatic quantity detection circuit 51 provided for each wire guide 45 and the current value represented by the signal output from the electrostatic quantity detection circuit 51 provided for the wire guide 45 other than the adjacent wire guide 45.

[0127] Furthermore, in the above embodiment, the plurality of wire guides 45 are conductive or semi-conductive, and the support member 46 supporting the plurality of wire guides 45 is conductive. In this regard, each wire guide 45 and the support member 46 are insulated from each other by an insulating member 47. However, this is not the only limitation.

[0128] In Modification 2, the plurality of wire guides 45 in the wire guide unit 9 are each semi-conductive. On the other hand, the support member 46 is conductive, similar to the embodiment described above. Furthermore, in Modification 2, as... Figure 6 As shown, no insulating component 47 is disposed between each wire guide 45 and the support component 46 (see Figure 47). Figure 3 Each wire guide 45 is in direct contact with the support component 46, thereby enabling the wire guide 45 to conduct electricity with the support component 46.

[0129] From the perspective of detecting the state of the yarn Y based on the difference between the static electricity in the yarn guide 45 and the static electricity in another yarn guide 45, it is preferable that the static electricity generated in the yarn guide 45 due to contact with the yarn Y is large. On the other hand, considering the influence of the static electricity generated in the yarn guide 45 on the yarn Y, it is preferable that the static electricity generated in the yarn guide 45 is not too large.

[0130] In Modification 2, the semi-conductive wire guide 45 is connected to the conductive support member 46. Therefore, when static electricity is generated in the wire guide 45, current can flow from the wire guide 45 to the support member 46, preventing the amount of static electricity generated in the wire guide 45 from becoming excessive. On the other hand, because the wire guide 45 is semi-conductive, current is less likely to flow from the wire guide 45 to the support member 46 compared to when the wire guide 45 is conductive. Therefore, the amount of static electricity generated in the wire guide 45 due to the contact between the wire Y and the wire guide 45 is not too small, and the state of the wire Y in the multiple wire guides 45 can be detected based on the difference in the amount of static electricity generated in the multiple wire guides 45.

[0131] Furthermore, in the above example, the wire guide 45 is generally conductive or semi-conductive, but is not limited to this. In the wire guide 45, only a portion, including the contact portion that contacts the wire Y, may be conductive or semi-conductive. In this case, the electrostatic discharge detection circuit 51 can output a signal corresponding to the amount of electrostatic discharge generated in the wire guide 45 due to contact with the wire Y.

[0132] For example, in variation 3, such as Figure 7 As shown, the wire guide 45 has a first wire guide portion 45a and a second wire guide portion 45b. The first wire guide portion 45a is conductive or semi-conductive, forming a portion of the wire guide 45 including a contact portion that contacts the wire Y. The second wire guide portion 45b is insulating and covers the first wire guide portion 45a. Thus, the first wire guide portions 45a of adjacent wire guides 45 in the wire guide unit 9 are insulated from each other by the second wire guide portion 45b. It should be noted that in Modification 3, the second wire guide portion 45b corresponds to the "insulating portion" of the present invention. Furthermore, although in Figure 7 The adjacent wire guides 45 are arranged separately from each other, but the second wire guide portions 45b of the adjacent wire guides 45 can also contact each other.

[0133] Furthermore, in Modification 3, the support member 46 is insulated. Also, the first wire guide portion 45a is led out to the side of the support member 46 opposite to the wire guide 45 in the orthogonal direction of the arrangement, and connects to the electrostatic detection circuit 51 (see...). Figure 4 (a)) connection.

[0134] In Modification 3, the first wire guide portions 45a of adjacent wire guides 45, which are conductive or semi-conductive, can be insulated from each other by the second wire guide portions 45b, which are insulating. This prevents static electricity generated from the contact between each wire guide 45 and the wire Y from affecting static electricity generated from the contact between adjacent wire guides 45 and the wire Y.

[0135] Furthermore, if only a portion of the wire guide 45, including the contact portion that contacts the wire Y, is conductive or semi-conductive, this portion of the wire guide 45 can be insulated from the support member 46. Alternatively, if only a portion of the wire guide 45, including the contact portion that contacts the wire Y, is semi-conductive, this portion of the wire guide 45 can be conductive from the support member 46.

[0136] Furthermore, the conductive or semi-conductive portions of adjacent guide wires can also be insulated from each other by insulating portions of structures other than those described in the above embodiments and in variation 3.

[0137] Furthermore, in the above example, multiple guide wires 45 are supported by a common support member 46, but multiple guide wires 45 may also be supported by individual support members. Alternatively, two or more portions of the multiple guide wires 45 may be supported by a common support member. Additionally, in the above example, the support member supporting the guide wires 45 is conductive, but the support member may also be insulating.

[0138] Furthermore, the above examples illustrate the application of the invention to a spinning take-up machine, which includes a common roller for multiple yarns and a plurality of yarn guides arranged in a row upstream or downstream of the common roller in the yarn's travel direction, but is not limited thereto. The invention can also be applied to yarn processing devices other than spinning take-up machines, which include a common roller for multiple yarns and a plurality of yarn guides arranged in a row upstream or downstream of the common roller in the yarn's travel direction.

Claims

1. A thread handling device, characterized in that, Possessing: a common roller on which a plurality of yarns are hooked in a line in a state of traveling and which is shared by the plurality of yarns; a plurality of thread guides which are individually provided for the plurality of yarns, which contact the corresponding yarns, which are arranged in a line upstream or downstream of the common roller in the traveling direction of the plurality of yarns, and which have a contact portion that contacts at least the yarns and has electrical conductivity or semi-conductivity; an electrostatic amount detection unit that detects an electrostatic amount of static electricity generated in the plurality of thread guides; and a control unit that outputs a yarn state signal indicating a state of the yarn in each thread guide in accordance with the electrostatic amount in each thread guide detected by the electrostatic amount detection unit, the control unit outputs the yarn state signal in accordance with a difference between the electrostatic amount in each thread guide detected by the electrostatic amount detection unit and the electrostatic amount in the thread guide other than the thread guide.

2. The yarn processing apparatus according to claim 1, characterized in that the control unit outputs the yarn state signal in accordance with a difference between the electrostatic amount in each thread guide detected by the electrostatic amount detection unit and the electrostatic amount in the thread guide adjacent to the thread guide.

3. The yarn processing apparatus according to claim 1 or 2, characterized in that the electrostatic amount detection unit detects the electrostatic amount by detecting a voltage or a current generated by static electricity generated in the thread guide, the control unit outputs the yarn state signal in accordance with a difference between the voltage or the current in each thread guide detected by the electrostatic amount detection unit and the voltage or the current in the thread guide other than the thread guide.

4. The thread treatment device according to any one of claims 1 to 3, characterized in that, Possessing: a plurality of twisting units which are individually provided for the plurality of yarns and which twist the yarns; a plurality of upstream support thread guides which are the plurality of thread guides, which are individually provided for the plurality of yarns, which contact the corresponding yarns, which are arranged in a line upstream of the plurality of twisting units in the traveling direction of the plurality of yarns, and which have a contact portion that contacts at least the yarns and has electrical conductivity or semi-conductivity; and a plurality of downstream support thread guides which are the plurality of thread guides, which are individually provided for the plurality of yarns, which contact the corresponding yarns, which are arranged in a line downstream of the plurality of twisting units in the traveling direction of the plurality of yarns, and which have a contact portion that contacts at least the yarns and has electrical conductivity or semi-conductivity, the electrostatic amount detection unit detects at least one of an electrostatic amount of static electricity generated in the plurality of upstream support thread guides and an electrostatic amount of static electricity generated in the plurality of downstream support thread guides as the electrostatic amount of static electricity generated in the plurality of thread guides.

5. The yarn processing apparatus according to any one of claims 1 to 4, characterized by possessing an insulating unit that has insulating properties and that insulates portions having electrical conductivity or semi-conductivity of adjacent thread guides from each other.

6. The yarn processing apparatus according to claim 5, characterized in that the thread guides as a whole have electrical conductivity or semi-conductivity, the insulating unit is arranged between adjacent thread guides.

7. The yarn processing apparatus according to claim 5, characterized in that The guide wire has: a first guide wire portion including a contact portion that contacts the wire, and having electrical conductivity or semi-conductivity; and a second guide wire portion that covers the first guide wire portion as the insulating portion.

8. The wire processing apparatus according to any one of claims 1 to 6, characterized in that a support member having electrical conductivity supports the plurality of guide wires, the support member is insulated from each guide wire.

9. The wire processing apparatus according to any one of claims 1 to 4, characterized in that the plurality of guide wires have semi-conductivity, the wire processing apparatus has a support member having electrical conductivity that supports the plurality of guide wires, each guide wire is in conduction with the support member.

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