CN116905139A

CN116905139A - Heating device

Info

Publication number: CN116905139A
Application number: CN202310282007.6A
Authority: CN
Inventors: 堀本尭幸; 北川重树
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2022-04-15
Filing date: 2023-03-21
Publication date: 2023-10-20
Also published as: JP2023157726A; TW202342840A; EP4265829A1

Abstract

A heating device reduces manufacturing costs of a wire-bonding member for the heating device. The 1 st heating device is provided with: a heat source; a heating unit which is extended in a predetermined extending direction and is heated by a heat source; a wire member that is heated by the heating portion in a state of extending at least in the extending direction; and an installation part including a heating part, on which the wire-connecting member is installed. The yarn joining member has a yarn joining face for contacting the yarn. The wire bonding surface extends at least along the extending direction and faces at least one side in a predetermined height direction orthogonal to the extending direction. The 1 st heating device includes an elastic deformation holding portion that holds the wire member attached to the heating portion in a state of being elastically deformed when viewed from a width direction orthogonal to both the extending direction and the height direction. The cross-sectional curve of the wire bonding surface orthogonal to the width direction has a predetermined curvature in a state where the wire bonding member is elastically deformed and held by the elastic deformation holding portion.

Description

Heating device

Technical Field

The present invention relates to a heating device for heating a wire.

Background

Patent document 1 discloses a heating device provided in a false twisting machine (textile machine) for false twisting an advancing yarn. More specifically, the heating device includes a sheathed heater (heat source), a heating body (heating unit) extending in a predetermined extending direction, and a contact plate (wire member) attached to the heating unit and configured to be heated by the heat source. The yarn joining member has a yarn joining surface curved so that the yarn is reliably brought into contact. Thereby, the yarn running while being in contact with the yarn joining surface is heated by heat conduction.

Patent document 1: japanese patent laid-open No. 2002-194631

The specifications of the heating device (more specifically, the optimal curvature of the yarn channel formed by the yarn splicing face) may vary mainly depending on the layout of the fiber machine forming the yarn channel. Conventionally, a yarn joining member having an optimum curvature of a yarn path is manufactured in advance in accordance with specifications of a heating device, and therefore, manufacturing costs of the yarn joining member are increased.

Disclosure of Invention

The invention aims to reduce the manufacturing cost of a wire connecting component for a heating device.

The heating device according to claim 1 heats a running yarn, and is characterized by comprising: a heat source; a heating unit which is extended in a predetermined extending direction and is heated by the heat source; a yarn joining member having a yarn joining surface for contacting the yarn, and being heated by the heating portion in a state of extending at least along the extending direction; and a mounting portion including the heating portion to which the wire bonding member is mounted, wherein the wire bonding surface extends at least along the extending direction and is oriented at least to one side in a predetermined height direction orthogonal to the extending direction, and wherein the heating device includes an elastic deformation holding portion that holds the wire bonding member mounted to the mounting portion in a state of being elastically deformed when viewed in a width direction orthogonal to both the extending direction and the height direction, and wherein a cross-sectional curve of the wire bonding surface orthogonal to the width direction has a predetermined curvature when the wire bonding member is elastically deformed and held by the elastic deformation holding portion.

In the present invention, the wire member is attached to the attachment portion in an elastically deformed state and held by the elastically deformed holding portion so that a cross-sectional curve of the wire surface has a predetermined curvature. In other words, even when the wire member that extends straight is attached to the heating device at the time of manufacturing, the wire member can be formed into a desired shape by simply elastically deforming the wire member. Thus, the processing cost of the wire member can be reduced as compared with the case of manufacturing the wire member processed in accordance with the specifications of the heating device. Thus, the manufacturing cost of the wire bonding member for the heating device can be reduced.

In the heating device according to claim 2, in the above 1, the elastic deformation holding portion detachably holds the wire-bonding member to the mounting portion.

In general, the member in contact with the advancing wire is cleaned as needed. The heating device may be disposed at a position higher than the height of the operator who performs cleaning. Therefore, if the wire connecting member cannot be removed from the mounting portion, the cleaning operation may be difficult depending on the arrangement of the heating device. In this regard, in the present invention, the wire connecting member can be detached from the attachment portion at the time of cleaning. Therefore, the efficiency of the cleaning operation of the wire bonding member can be improved regardless of the arrangement of the heating device.

In the heating device according to claim 3, in the above-described claim 2, the attachment portion has a detachable passage, and the wire-receiving member can pass through the detachable passage in the height direction when the wire-receiving member is detached.

For example, the wire member may be attached to or detached from the attachment portion by inserting or extracting the wire member in the extending direction. However, in such a case, a long space for attachment and detachment needs to be secured at a position adjacent to the heating device in the extending direction, and therefore, there is a large restriction on the layout of the periphery of the heating device. In this regard, in the present invention, the wire member can be attached to and detached from the mounting portion by moving the wire member in the height direction. In such a case, it is not necessary to secure a long space adjacent to the heating device in the extending direction. Thus, restrictions on the layout of the periphery of the heating device can be suppressed.

The heating device according to claim 4 is characterized in that, in any one of claims 1 to 3, the elastic deformation holding portion includes: a 1 st urging portion configured to apply a force to the one side in the height direction to a 1 st portion located at a predetermined position in the extending direction of the wire-bonding member mounted to the mounting portion; a 2 nd urging portion configured to apply a force to the other side in the height direction to a 2 nd portion on one side in the extending direction than the 1 st portion of the wire bonding member attached to the attachment portion; and a 3 rd urging portion configured to apply a force to the other side in the height direction to a 3 rd portion of the wire bonding member attached to the attachment portion, the 3 rd portion being located on the other side in the extending direction than the 1 st portion.

In the present invention, a force is applied to a portion of the wire member in the extending direction in one direction in the height direction, and a force is applied to the other side in the height direction in comparison with a portion of the wire member on one side in the extending direction and a portion on the other side. This allows the wire connecting member to flex. Thus, the wire member can be elastically deformed by a simple structure.

In the heating device according to claim 5, in the 4 th aspect, the 1 st urging portion includes a 1 st restricting portion located on the other side of the 1 st portion in the height direction, the 1 st restricting portion restricting movement of the 1 st portion to the other side in the height direction, the 2 nd urging portion includes a 2 nd restricting portion located on the one side of the 2 nd portion in the height direction, the 2 nd restricting portion restricting movement of the 2 nd portion to the one side in the height direction, and the 3 rd urging portion includes a 3 rd restricting portion located on the one side of the 3 rd portion in the height direction, the 3 rd restricting portion restricting movement of the 3 rd portion to the one side in the height direction.

In the present invention, the 1 st restriction portion restricts the movement of the 1 st portion to the other side in the height direction, and thereby, a force is applied to the 1 st portion to one side in the height direction according to the rule of reaction. Further, the movement of the 2 nd and 3 rd portions to one side in the height direction is restricted by the 2 nd and 3 rd restricting portions, respectively, whereby the forces to the other sides in the height direction are applied to the 2 nd and 3 rd portions according to the rule of reaction. Thus, the wire member can be elastically deformed by a simple structure.

In the heating device according to claim 6, in claim 5, the 2 nd restriction portion and the 3 rd restriction portion are movable between a retracted position where they do not overlap the wire bonding member when viewed from the height direction and an overlapping position where they overlap the wire bonding member when viewed from the height direction.

In the present invention, when the wire member is attached to the attachment portion, the wire member can be attached to the attachment portion by a simple operation of temporarily moving the 2 nd and 3 rd restricting portions to the retracted position and moving the 2 nd and 3 rd restricting portions to the overlapped position in a state in which the wire member is deflected. In addition, when the wire member is detachable from the mounting portion, the wire member can be detached from the mounting portion by a simple operation of temporarily moving the 2 nd and 3 rd restricting portions to the retracted positions.

In the heating device according to claim 7, in the heating device according to claim 6, the heating device includes a biasing portion that biases the 2 nd regulating portion and the 3 rd regulating portion from the retracted position to the overlapping position, respectively.

In the present invention, the 2 nd restriction portion and the 3 rd restriction portion can be prevented from moving accidentally from the overlapping position to the retracted position.

In the heating device according to claim 8, in the heating device according to claim 6 or claim 7, the heating device includes a swing shaft that supports the 2 nd restriction portion and the 3 rd restriction portion so as to be swingable, respectively.

The 2 nd and 3 rd restricting portions may be configured to be movable in parallel, but in this case, a wide space may be required for movement of the 2 nd and 3 rd restricting portions. In the present invention, for example, when the wire member is attached to the attachment portion during the production of the heating device (or when the wire member is detached from the attachment portion in a case where the wire member is detachable from the attachment portion), the space required for the movement of the 2 nd and 3 rd restricting portions can be made compact.

In the heating device according to claim 9, in any one of claims 5 to 8, at least one of the 1 st restriction portion, the 2 nd restriction portion, and the 3 rd restriction portion is capable of changing a position with respect to the mounting portion in at least any one of the extending direction and the height direction.

In the present invention, even after the heating device is provided, the curvature of the cross-sectional curve of the wire bonding surface can be adjusted as needed.

Drawings

Fig. 1 is a side view of a false twist texturing machine including a first heating device according to embodiment 1.

Fig. 2 is a schematic view of a false twist texturing machine deployed along a path of a yarn.

Fig. 3 (a) to (e) are explanatory diagrams showing the structure of the 1 st heating device.

Fig. 4 (a) and (b) are explanatory diagrams showing the structure of the 1 st heating device.

Fig. 5 is an explanatory diagram showing the flexure.

Fig. 6 (a) to (d) are views of the hook portion as seen from the extending direction.

Fig. 7 (a) and (b) are views of the hooking portion as seen in the width direction.

Description of symbols

13: 1 st heating device (heating device); 41: a heating section (mounting section); 42: a heat source; 43: a wire-connecting component; 57: a wire connecting surface; 59: a cross-sectional curve; 60: an elastic deformation holding portion; 61: a flexure (1 st urging portion, 1 st restricting portion); 83: a torsion coil spring (urging portion); 85b: an abutting portion (a 2 nd urging portion, a 2 nd restricting portion); 93: a torsion coil spring (urging portion); 95b: an abutting portion (a 3 rd urging portion, a 3 rd restricting portion); y silk thread.

Detailed Description

Next, an embodiment of the present invention will be described. The vertical direction of the paper surface in fig. 1 is defined as the longitudinal direction of the machine body. The left-right direction of the paper surface in fig. 1 is defined as the body width direction. The direction orthogonal to both the longitudinal direction and the width direction of the machine body is defined as the vertical direction (vertical direction) in which gravity acts.

(integral construction of false twisting machine)

The overall configuration of the false twist texturing machine 1 including the 1 st heating device 13 (heating device of the present invention, described later in more detail) of the present embodiment will be described with reference to fig. 1 and 2. Fig. 1 is a side view of a false twist texturing machine 1. Fig. 2 is a schematic view of the unwinding false twisting machine 1 along the path of the yarn Y (yarn path).

The false twisting machine 1 is configured to be capable of false twisting a yarn Y made of synthetic fibers (for example, polyester). The yarn Y is, for example, a multifilament yarn composed of a plurality of filaments. Alternatively, the thread Y may be formed of one filament. The false twist processing machine 1 includes a yarn feeding section 2, a processing section 3, and a winding section 4. The yarn feeding section 2 is configured to be capable of feeding the yarn Y. The processing unit 3 is configured to draw the yarn Y from the yarn feeding unit 2 and perform false twisting. The winding unit 4 is configured to wind the yarn Y processed by the processing unit 3 around a winding bobbin Bw. The wire feeding section 2, the processing section 3, and the winding section 4 have a plurality of components arranged in the longitudinal direction of the machine body (see fig. 2). The machine body longitudinal direction is a direction orthogonal to a running surface (paper surface of fig. 1) of the yarn Y formed by a yarn path from the yarn feeding section 2 to the winding section 4 through the processing section 3.

The yarn feeding section 2 has a creel 7 for holding a plurality of yarn feeding packages Ps, and supplies a plurality of yarns Y to the processing section 3. The processing unit 3 is configured to draw out a plurality of filaments Y from the filament supply unit 2 to perform processing. The processing unit 3 is configured such that, for example, a 1 st yarn feeding roller 11, a stop yarn guide 12, a 1 st heating device 13, a cooling device 14, a false twisting device 15, a 2 nd yarn feeding roller 16, a winding device 17, a 3 rd yarn feeding roller 18, a 2 nd heating device 19, and a 4 th yarn feeding roller 20 are arranged in this order from the upstream side in the yarn advancing direction. The winding section 4 has a plurality of winding devices 21. Each winding device 21 winds the yarn Y false twisted by the processing unit 3 around the winding bobbin Bw to form the winding package Pw.

The false twist machine 1 has a main body 8 and a winding table 9 arranged at intervals in the machine body width direction. The main body 8 and the winding table 9 are provided so as to extend substantially the same length in the body length direction. The main body 8 and the winding table 9 are arranged so as to face each other in the body width direction. The false twist machine 1 has a unit cell called span comprising a set of main bodies 8 and a winding station 9. In one span, each device is configured to be capable of simultaneously performing false twisting processing on a plurality of filaments Y traveling in a state of being aligned in the machine body length direction. In the false twist texturing machine 1, the span is arranged symmetrically on the paper surface with the center line C of the main machine body 8 in the machine body width direction as a symmetry axis (the main machine body 8 is shared by the left and right spans). In addition, a plurality of spans are arranged along the longitudinal direction of the machine body.

(construction of processing section)

The structure of the processing unit 3 will be described with reference to fig. 1 and 2. The 1 st yarn feeding roller 11 is configured to unwind the yarn Y from the yarn supply package Ps attached to the yarn supply section 2 and convey the yarn Y to the 1 st heating device 13. For example, as shown in fig. 2, the 1 st godet 11 is configured to feed one yarn Y to the 1 st heating device 13. Alternatively, the 1 st godet 11 may be configured to be capable of conveying the adjacent plurality of filaments Y to the downstream side in the filament traveling direction. The yarn-stopping guide 12 is configured such that the yarn Y is not twisted by the false twisting device 15 to the upstream side of the yarn-stopping guide 12 in the yarn advancing direction.

The 1 st heating device 13 is a device for heating the yarn Y fed from the 1 st godet 11 to a predetermined processing temperature. For example, as shown in fig. 2, the 1 st heating device 13 is configured to be capable of heating two wires Y. A work space S (see fig. 1) for an operator to perform a work such as yarn hanging is formed below the 1 st heating device 13. The heating device 13 of the 1 st stage will be described in more detail later.

The cooling device 14 is configured to cool the yarn Y heated by the 1 st heating device 13. For example, as shown in fig. 2, the cooling device 14 is configured to cool one yarn Y. Alternatively, the cooling device may be configured to be capable of simultaneously cooling a plurality of yarns Y. The false twisting device 15 is disposed downstream of the cooling device 14 in the yarn advancing direction and is configured to twist the yarn Y. The false twisting device 15 is, for example, a so-called friction disk type false twisting device, but is not limited thereto. The 2 nd yarn feeding roller 16 is configured to feed the yarn Y processed by the false twisting device 15 to the interlacing device 17. The feeding speed of the yarn Y by the 2 nd feeding roller 16 is faster than the feeding speed of the yarn Y by the 1 st feeding roller 11. Thereby, the yarn Y is drawn and false-twisted between the 1 st yarn feeding roller 11 and the 2 nd yarn feeding roller 16.

The interlacing device 17 is configured to apply interlacing to the yarn Y. The interlacing device 17 has, for example, a known interlacing nozzle for applying interlacing to the yarn Y by an air flow.

The 3 rd godet 18 is configured to feed the yarn Y traveling downstream in the yarn traveling direction from the interlacing device 17 to the 2 nd heating device 19. For example, as shown in fig. 2, the 3 rd godet 18 is configured to feed one yarn Y to the 2 nd heating device 19. Alternatively, the 3 rd godet 18 may be configured to be capable of conveying the adjacent plurality of filaments Y to the downstream side in the filament traveling direction. In addition, the 3 rd feeding roller 18 feeds the yarn Y at a slower speed than the 2 nd feeding roller 16 feeds the yarn Y. Thus, the yarn Y is relaxed between the 2 nd and 3 rd feed rolls 16 and 18. The 2 nd heating device 19 is configured to heat the yarn Y fed from the 3 rd godet 18. The 2 nd heating devices 19 extend in the vertical direction, one each in one span. The 4 th godet 20 is configured to feed the yarn Y heated by the 2 nd heating device 19 to the winding device 21. For example, as shown in fig. 2, the 4 th godet 20 is configured to be capable of feeding one yarn Y to the winding device 21. Alternatively, the 4 th godet 20 may be configured to be capable of conveying the adjacent plurality of filaments Y to the downstream side in the filament traveling direction. The 4 th feeding roller 20 feeds the yarn Y at a slower speed than the 3 rd feeding roller 18 feeds the yarn Y. Thus, the yarn Y is relaxed between the 3 rd and 4 th godets 18 and 20.

In the processing unit 3 configured as described above, the yarn Y stretched between the 1 st yarn feeding roller 11 and the 2 nd yarn feeding roller 16 is twisted by the false twisting device 15. The twist formed by the false twisting device 15 propagates to the anti-twist yarn guide 12, but does not propagate upstream of the anti-twist yarn guide 12 in the yarn advancing direction. The yarn Y twisted while being drawn is heated by the 1 st heating device 13 and heat-set, and then cooled by the cooling device 14. The yarn Y is untwisted downstream of the false twisting device 15 in the yarn advancing direction, but the yarn Y is maintained in a false twisted state (i.e., the crimp of the yarn Y is maintained) by the heat setting described above.

The yarn Y subjected to false twisting is relaxed between the 2 nd and 3 rd yarn feeding rollers 16 and 18, and is guided downstream in the yarn advancing direction after being subjected to interlacing by the interlacing device 17. Further, the yarn Y is heat-treated by the 2 nd heating device 19 while being relaxed between the 3 rd and 4 th godets 18 and 20. Finally, the yarn Y fed from the 4 th godet 20 is wound by the winding device 21.

(constitution of winding portion)

The structure of the winding portion 4 will be described with reference to fig. 2. The winding section 4 has a plurality of winding devices 21. Each winding device 21 is configured to be capable of winding the yarn Y on one winding bobbin Bw. The winding device 21 has a fulcrum guide 31, a traversing device 32, and a cradle 33. The fulcrum guide 31 is a guide that serves as a fulcrum for the traverse of the yarn Y. The traverse device 32 is configured to be capable of traversing the yarn Y by traversing the yarn guide 34. The cradle 33 is configured to rotatably support the winding tube Bw. A contact roller 35 is disposed in the vicinity of the cradle 33. The contact roller 35 contacts the surface of the winding package Pw to apply a contact pressure. In the winding unit 4 configured as described above, the yarn Y fed from the 4 th yarn feeding roller 20 is wound around the winding bobbin Bw by each winding device 21 to form the winding package Pw.

(1 st heating device)

Next, a more specific configuration of the 1 st heating device 13 will be described with reference to fig. 3 (a) to (e) and fig. 4 (a) and (b). Fig. 3 (a) is a view of the 1 st heating device 13 as seen from the longitudinal direction of the machine body. In fig. 3 (a), the 1 st heating device 13 is shown extending in the left-right direction of the paper surface. Fig. 3 (b) is a cross-sectional view of the 1 st heating device 13 perpendicular to the longitudinal direction of the machine body. In fig. 3 b, a wire bonding surface 57 (described below) of the wire bonding member 43 (described below) is shown. Fig. 3 (c) is an enlarged view of the left end of the paper surface of fig. 3 (b). Fig. 3 (d) is an enlarged view of the end portion of the wire member 43 in the 1 st heating device 13 in the extending direction. Fig. 3 (e) is a sectional view of line III (e) -III (e) of fig. 3 (d). Fig. 4 (a) is an IV (a) view of fig. 3 (a). Fig. 4 (b) is a sectional view of IV (b) -IV (b) line of fig. 3 (a).

For convenience of explanation, the left-right direction of the paper surface in fig. 3 (a) and (b) is the extending direction in which the 1 st heating device 13 extends. The extending direction is orthogonal to the longitudinal direction of the machine body. The left side of the paper surface in fig. 3 (a) and (b) is defined as one side in the extending direction, and the right side is defined as the other side in the extending direction. The direction orthogonal to both the longitudinal direction and the extending direction of the machine body is referred to as the height direction. The lower side of the paper surface in fig. 3 (a) and (b) and fig. 4 (a) and (b) is defined as one side in the height direction, and the upper side of the paper surface is defined as the other side in the height direction. Although not shown, the same applies to fig. 3 (c) to (e) and fig. 6 (a) to 7 (b) described later. More specifically, in the 1 st heating device 13, one side in the height direction is a side close to the working space S (see fig. 1). Therefore, hereinafter, the side in the height direction is also referred to as "working space S side". The other side in the height direction is also referred to as "the side opposite to the working space S". Hereinafter, the longitudinal direction of the machine body is also referred to as the width direction (see fig. 3 (e), fig. 4 (a) and fig. 4 (b)). The width direction is orthogonal to both the extending direction and the height direction.

The 1 st heating device 13 is configured to heat the advancing yarn Y. In the present embodiment, the 1 st heating device 13 is configured to be capable of heating two wires Y, for example (wires YA, YB. refer to fig. 4 (a)). The 1 st heating device 13 includes two heating portions 41 (heating portions 41A, 41B. The mounting portion of the present invention), a heat source 42, and two wire members 43 (wire members 43A, 43B). The 1 st heating device 13 is configured to heat the yarn joining members 43A and 43B attached to the heating sections 41A and 41B, respectively, by the heat source 42, and to bring the advancing yarn YA and YB into contact with the yarn joining members 43A and 43B, respectively. Thereby, the wires YA, YB are heated.

The heating portion 41 (mounting portion of the present invention) is configured to be heated by a heat source 42. The heating unit 41 is configured to transfer heat generated by the heat source 42 to the wire member 43 mainly by heat conduction. The heating portion 41 extends linearly along the extending direction. The length of the heating portion 41 in the predetermined direction is, for example, 1.0m to 1.5 m. As shown in fig. 4 (a) and (B), the heating portions 41A and 41B are formed to be line-symmetrical to each other across the heat source 42 when viewed from the extending direction. Although not shown, a heat insulating member (not shown) is disposed around the heating portion 41 when viewed in the extending direction. Each heating unit 41 (heating units 41A, 41B) includes, for example, a 1 st heating member 54 (1 st heating members 54A, 54B) and a 2 nd heating member 55 (2 nd heating members 55A, 55B). The 1 st heating member 54 and the 2 nd heating member 55 may be made of the same kind of material (for example, brass). Alternatively, the 1 st heating member 54 and the 2 nd heating member 55 may be made of different types of materials.

The 1 st heating member 54 is, for example, a member having a substantially rectangular cross section perpendicular to the extending direction (see fig. 4 (b)). In this cross section, the 1 st heating member 54 extends long in the height direction, for example. The 1 st heating member 54 is configured to be in contact with the heat source 42. The contact surface of the 1 st heating member 54 with the heat source 42 has a shape along the outer shape of the heat source 42. The 1 st heating member 54A and the 1 st heating member 54B are arranged adjacent to each other in the width direction. The 1 st heating member 54A and the 1 st heating member 54B are arranged so as to surround the heat source 42.

The 2 nd heating member 55 is, for example, a member having a substantially L-shaped cross section perpendicular to the extending direction (see fig. 4 (b)). In this cross section, the 2 nd heating member 55 extends long in the height direction, for example. In this cross section, the other side portion of the 2 nd heating member 55 in the height direction protrudes in the width direction toward the 1 st heating member 54 side belonging to the same heating portion 41. The 2 nd heating member 55 is arranged adjacent to the 1 st heating member 54 belonging to the same heating portion 41 in the width direction. The portion of the 2 nd heating member 55 protruding in the width direction as described above is in contact with the 1 st heating member 54. In the width direction, a storage space 56 (storage spaces 56A, 56B) that is open on one side in the height direction (the work space S side) is formed between the 1 st heating member 54 and the 2 nd heating member 55. The storage space 56 has, for example, a substantially rectangular shape in which a cross section orthogonal to the extending direction extends long in the height direction. The housing space 56 (the attachment/detachment path of the present invention) is a space for housing the wire members 43. The storage space 56 may be opened and closed by a cover, not shown, provided on the working space S side in the height direction of the heating unit 41, for example.

The shapes of the 1 st heating member 54 and the 2 nd heating member 55 are not limited to the above. Alternatively, the heating unit 41 may have a heating member (not shown) integrally formed instead of the 1 st heating member 54 and the 2 nd heating member 55. For example, a heating member having a shape matching the 1 st heating member 54 and the 2 nd heating member 55 may be formed by cutting a single solid rod-shaped member.

In the extending direction, a cover member 51 disposed to partially surround the heating portion 41 is provided at a position of an end portion of the heating portion 41 and a portion in the vicinity thereof. The cover member 51 has a substantially U-shape when viewed in the extending direction. One side (working space S side) of the cover member 51 in the height direction is open.

The heat source 42 is configured to heat the wire abutting member 43 via the heating portion 41. The heat source 42 is, for example, a known sheathed heater (electrothermal heater). The sheathed heater is a device having an electric wire (e.g., coil) and a tube surrounding the electric wire. The sheathed heater generates joule heat when a current flows through the heating wire. The heat source 42 extends in the extending direction (see fig. 3 (a)). The heat source 42 is disposed so as to be surrounded by the heating portion 41.

The wire members 43 (wire members 43A and 43B) are members attached to the heating section 41. The wire member 43 is heated by the heating unit 41 (the 1 st heating member 54 and the 2 nd heating member 55). The wire member 43 is formed by, for example, cutting a member made of stainless steel (SUS). The wire member 43 extends at least in the extending direction. The wire members 43A and 43B are accommodated in the accommodation spaces 56A and 56B, respectively. The wire member 43 is disposed in contact with the heating portion 41. A yarn joining surface 57 for contacting the yarn Y is formed on at least one side (working space S side) in the height direction at the inner side portion in the width direction of the yarn joining member 43 (see (d) and (e) of fig. 3). The wire bonding surface 57 is curved such that, for example, both end portions in the extending direction are located at the position on the other side most in the height direction of the wire bonding surface 57, and the central portion in the extending direction is located at the position on the other side most in the height direction of the wire bonding surface 57. Thus, the cross-sectional curve 59 (see fig. 3 (b) and (c)) of the wire bonding surface 57 perpendicular to the width direction has a predetermined curvature. A pair of regulating walls 58 for regulating movement of the yarn Y in the width direction are formed on both outer sides of the yarn joining surface 57 in the width direction. A yarn path for advancing the yarn Y is formed in the yarn joining member 43 by the yarn joining surface 57 and the limiting wall 58.

In the false twisting machine 1, the positional relationship between the 1 st heating device 13 and the stop yarn guide 12 and the positional relationship between the 1 st heating device 13 and the cooling device 14 are appropriately set so that the advancing yarn Y is reliably brought into contact with the yarn joining surface 57. Further, a predetermined tension is applied to the yarn Y. Thereby, a force in the height direction toward the wire bonding surface 57 side acts on the wire Y. Thus, the yarn Y can be prevented from being separated from the yarn joining face 57.

In the 1 st heating device 13 having the above configuration, heat generated by the heat source 42 is transmitted to the wire member 43 via the heating unit 41 (the 1 st heating member 54 and the 2 nd heating member 55). Thereby, the yarn joining member 43 is heated, and the yarn Y in contact with the yarn joining surface 57 of the yarn joining member 43 is heated (contact mode).

Here, the specification of the 1 st heating device 13 (more specifically, the optimum curvature of the yarn joining surface) may be changed mainly according to the layout of the false twisting machine 1 forming the yarn channel. In a conventional heating device (not shown), a wire member (not shown) having an optimal curvature of a wire passage is manufactured in advance according to the specifications of the heating device, and therefore, the wire member (not shown) is manufactured at a high cost. Therefore, in order to reduce the manufacturing cost of the wire connecting member 43, the 1 st heating device 13 of the present embodiment is configured as follows.

(detailed constitution of the 1 st heating device)

The detailed configuration of the 1 st heating device 13 will be described with reference to fig. 4 (a) to 7 (b). Fig. 5 is an explanatory diagram schematically showing a plurality of flexure portions 61 (the 1 st urging portion and the 1 st restricting portion of the present invention) described later. Fig. 6 (a) and (b) are views of a hooking portion 62 described later, as viewed from one side in the extending direction. Fig. 6 (c) and (d) are views of a hooking portion 63 described later, as seen from the other side in the extending direction. The up-down direction of the paper surface of fig. 6 (a) to (d) is parallel to the height direction. The left-right direction of the paper surface of fig. 6 (a) to (d) is parallel to the width direction. Fig. 7 (a) and (b) are views of the hooking portions 62 and 63 as seen in the width direction (longitudinal direction of the machine body). Hereinafter, more specifically, a position where a later-described flexure 61C (see fig. 4 (b) and 5) is arranged in the extending direction is set as a reference position. For example, in fig. 5, the left side of the plane of the drawing is set as one side in the extending direction of the deflection portion 61C, and the right side of the plane of the drawing is set as the other side in the extending direction of the deflection portion 61C.

Hereinafter, only the structure of the 1 st heating device 13 for heating one of the two wires Y (more specifically, the structure described on the right side of the paper surface of fig. 4 (a)) will be described. The structure for heating the other yarn Y of the two yarns Y is the same as the structure for heating the one yarn Y described above, and therefore, the description thereof will be omitted.

First, the structure of the wire member 43 of the present embodiment is as follows. The wire member 43 does not receive any external force from the heating unit 41 at a time before being attached to the heating unit 41. In this state, the wire member 43 extends substantially linearly (for example, see the two-dot chain line of fig. 5). In this state, the wire bonding surface 57 also extends in a substantially straight line along the direction in which the wire bonding member 43 extends. As will be described later, the wire member 43 is configured to be detachable from the heating unit 41.

As shown in fig. 4 (a) to 7 (b), the 1 st heating device 13 includes an elastic deformation holding portion 60 for detachably holding the wire member 43 in the heating portion 41. The elastic deformation holding portion 60 is configured to hold the wire member 43 attached to the heating portion 41 while elastically deforming the wire member (details will be described later). The elastic deformation holding portion 60 includes, for example, a plurality of flexing portions 61 (see fig. 4 (b) and 5), hooking portions 62 (see fig. 4 (a), fig. 6 (a), (b), and fig. 7 (a)), and hooking portions 63 (see fig. 6 (c), (d), and fig. 7 (b)). The plurality of flexing portions 61, hooking portions 62, and hooking portions 63 are attached to the heating portion 41. The plurality of flexing portions 61, the hooking portions 62, and the hooking portions 63 are configured to elastically deform the wire member 43 and maintain the state in which the wire member 43 is elastically deformed.

The plurality of flexing portions 61 are configured to contact with a plurality of portions of the wire members 43 in the extending direction, and restrict movement of the wire members 43 to the other side in the height direction (the side opposite to the working space S). The plurality of flexible portions 61 are arranged at the other side (the side opposite to the working space S) in the height direction of the wire members 43. For example, as shown in fig. 4 (b), each of the flexure portions 61 is a bolt-like member extending in the width direction. Each of the flexure 61 may be, for example, a known rod-end bolt. For convenience of explanation, the direction in which the flexure 61 extends is referred to as the bolt axis direction. The flexure 61 includes, for example, a head portion 71, a male screw portion 72, and a distal end portion 73. The head 71 is located at the position on the most proximal side in the bolt axis direction of the flexure 61. The male screw portion 72 is a portion on which a male screw is formed, which is disposed on the side of the head portion 71 closer to the bolt axis direction. The male screw portion 72 is screwed with, for example, a female screw portion formed in the 2 nd heating member 55. Thereby, the flexure 61 is fixed to the 2 nd heating element 55 of the heating unit 41. The distal end portion 73 is a portion on the side of the screw shaft direction closer to the tip than the male screw portion 72, and is not threaded. The front end 73 is disposed at a position overlapping the storage space 56 in the width direction, for example. Thereby, the tip portion 73 can be in contact with a part of the extending direction of the wire member 43. For example, the flexure 61C (see fig. 4 (b) and 5) located at the substantially center of the 1 st heating device 13 in the extending direction is in contact with the 1 st portion 43f (see fig. 4 (b) and 5 in broken line) located at the center (the predetermined position of the present invention) in the extending direction of the wire member 43. In this way, the plurality of portions (hereinafter, for convenience of explanation, a plurality of inner portions in the extending direction) of the wire member 43 including the 1 st portion 43f are restricted from moving to the other side in the height direction by the plurality of flexing portions 61.

In the present embodiment, as described above, the flexure 61 is fixed to the 2 nd heating element 55. However, the present invention is not limited to this, and the flexible portion 61 may be fixed to the 1 st heating member 54, for example.

As shown in fig. 5, the plurality of flexure portions 61 are arranged at intervals in the extending direction, for example. The positions in the height direction of any two of the plurality of flexing portions 61 adjacent to each other are slightly different from each other so that the cross-sectional curve 59 of the wire bonding surface 57 has a predetermined curvature. In the present embodiment, the plurality of flexing portions 61 are each immovable relative to the heating portion 41.

The hooking portion 62 is configured to restrict movement of the 2 nd portion 43S (see the hatched portion in fig. 7 (a)) disposed on the side of the 1 st portion 43f of the wire member 43 in the extending direction to one side in the height direction (the working space S side). The 2 nd portion 43s is disposed at one end portion of the wire member 43 in the extending direction. The end portion on one side in the extending direction of the wire member 43 is, for example, a part (or all) of a portion within 10mm from the end surface on one side of the wire member 43 in the extending direction, but is not limited thereto. The hooking portion 62 is configured to detachably hold the wire connecting member 43 to the heating portion 41. As shown in fig. 6 (a), (b) and fig. 7 (a), the hook portion 62 includes a swing member 81, a swing shaft 82 extending in the extending direction, and a torsion coil spring 83, for example. The swing member 81 swings about the swing shaft 82, and thereby the movement of the 2 nd portion 43s in the height direction is restricted and released.

The swinging member 81 (see fig. 4 (a), fig. 6 (a), (b), and fig. 7 (a)) is swingably attached to the heating unit 41 via a swinging shaft 82. The swinging member 81 is formed by, for example, machining a metal plate member. As shown in fig. 6 (a), (b) and fig. 7 (a), the swinging member 81 has, for example, a base portion 84, a stopper portion 85 and a handle portion 86. The base portion 84 is a plate-like portion formed with an insertion hole (not shown) through which the swing shaft 82 is inserted.

The stopper 85 is a plate-like portion extending from the base 84 at least radially outward of the pivot shaft 82. The stopper portion 85 has a claw-shaped abutment portion 85b (the 2 nd urging portion and the 2 nd restricting portion of the present invention) formed with an abutment surface 85a capable of abutting against one end portion of the 2 nd portion 43s of the wire member 43 in the height direction. More specifically, the contact surface 85a is configured to be capable of being brought into contact with one end portion of one of the pair of restricting walls 58 in the height direction of the restricting wall 58. The abutment portion 85b is configured to be movable between an overlapping position (see fig. 6 (a)) overlapping the wire member 43 when viewed in the height direction and a retracted position (see fig. 6 (b)) not overlapping the wire member 43 when viewed in the height direction. When the abutting portion 85b is defined more strictly, the abutting portion 85b is a portion extending from the abutting surface 85a to the other side in the height direction when located at the overlapping position (i.e., when the abutting surface 85a is in contact with the 2 nd portion 43 s) (refer to a hatched portion of (a) of fig. 6). The stopper 85 is configured to partially contact the surface of the end portion of the wire member 43 in the width direction when moving from the retracted position to the overlapping position, whereby further swinging is restricted by the wire member 43. The contact surface 85a is disposed, for example, at a position closer to one side in the height direction than the end of the 1 st portion 43f in the height direction when the wire member 43 is attached to the heating portion 41.

An inclined surface 85c is formed at least toward one side in the height direction at one end of the contact portion 85b in the height direction (see fig. 6 (a)). The inclined surface 85c partially overlaps the storage space 56 in the width direction. The inclined surface 85c is inclined so as to be inclined toward the other side in the height direction as seen in the extending direction, for example, as going toward the center in the width direction of the storage space 56.

The handle portion 86 is, for example, a portion extending from the stopper portion 85 to one side in the extending direction. The grip portion 86 is a portion where an operator can handle the operation with his or her hand. The handle portion 86 is formed with, for example, an insertion hole 86a into which a 1 st arm portion 83a (described later) of the torsion coil spring 83 is inserted.

The swing shaft 82 is a shaft member fixed to one end of the heating portion 41 in the extending direction. The swing shaft 82 is disposed, for example, at the other side (the side opposite to the working space S) in the height direction from the storage space 56. The swing shaft 82 is configured to support the swing member 81 swingably. The axial direction of the swing shaft 82 is, for example, substantially parallel to the extending direction. A torsion coil spring 83 is attached to the swing shaft 82.

The torsion coil spring 83 is a spring member configured to bias the swinging member 81 (including the abutment portion 85 b) from the retracted position to the overlapping position. The torsion coil spring 83 is attached to the swing shaft 82. A 1 st arm 83a is formed at one end of the torsion coil spring 83. The 2 nd arm 83b is formed at the other end of the torsion coil spring 83. The 1 st arm 83a is fitted into a fitting hole 86a of the handle 86, for example, and can swing integrally with the swinging member 81. The 2 nd arm 83b is fixed to the cover member 51 so as not to swing about the swing shaft 82, for example. The torsion coil spring 83 is included in the urging portion of the present invention.

The hooking portion 63 is configured to restrict movement of the 3 rd portion 43t (see the hatched portion in fig. 7 b) disposed on the other side in the extending direction than the 1 st portion 43f of the wire member 43 to one side in the height direction (the working space S side). The 3 rd portion 43t is disposed at the other end portion of the wire member 43 in the extending direction. The other end portion of the wire member 43 in the extending direction is, for example, a part (or all) of a portion within 10mm from the other end surface of the wire member 43 in the extending direction, but is not limited thereto. The hooking portion 63 is configured to detachably hold the wire connecting member 43 to the heating portion 41. In short, the hooking portion 63 is constituted so as to be line-symmetrical to the hooking portion 62 when viewed from the width direction. Therefore, the description of the hooking portion 63 is limited to the minimum necessary. As shown in fig. 6 (c), (d) and fig. 7 (b), the hook 63 includes a swing member 91, a swing shaft 92 extending in the extending direction, and a torsion coil spring 93.

The swinging member 91 is a member corresponding to the swinging member 81. The swinging member 91 is swingably attached to the heating unit 41 via a swinging shaft 92. The swinging member 91 has, for example, a base portion 94, a stopper portion 95, and a handle portion 96. The stopper 95 has a claw-shaped abutment portion 95b (the 3 rd urging portion and the 3 rd restricting portion of the present invention) formed with an abutment surface 95a that can abut against one end portion of the 3 rd portion 43t of the wire member 43 in the height direction. The abutment portion 95b is configured to be movable between an overlapping position (see fig. 6 c) overlapping the wire member 43 when viewed in the height direction and a retracted position (see fig. 6 d) not overlapping the wire member 43 when viewed in the height direction. When the abutting portion 95b is defined more strictly, the abutting portion 95b is a portion extending from the abutting surface 95a to the other side in the height direction when located at the overlapped position (i.e., when the abutting surface 95a is in contact with the 3 rd portion 43 t) (refer to a hatched portion of (c) of fig. 6). The contact surface 95a is disposed, for example, at a position closer to one side in the height direction than the end of the 1 st portion 43f in the height direction when the wire member 43 is attached to the heating portion 41.

An inclined surface 95c is formed on at least one side of the stopper portion 95 in the height direction from the contact surface 95a (see fig. 6 c). The inclined surface 95c partially overlaps the storage space 56 in the width direction. The inclined surface 95c is inclined so as to be inclined toward the other side in the height direction as seen in the extending direction, for example, as going toward the center in the width direction of the storage space 56. The handle portion 96 is formed with, for example, an insertion hole 96a into which a 1 st arm 93a (described later) of the torsion coil spring 93 is inserted.

The swing shaft 92 is a shaft member fixed to the other end portion of the heating portion 41 in the extending direction. The swing shaft 92 is disposed, for example, at the other side (the side opposite to the working space S) in the height direction from the storage space 56. The axial direction of the swing shaft 92 is, for example, substantially parallel to the extending direction. The torsion coil spring 93 is configured to bias the swinging member 91 (including the abutment portion 95 b) from the retracted position to the overlapping position. The torsion coil spring 93 is mounted on the swing shaft 92. A 1 st arm 93a is formed at one end of the torsion coil spring 93. The 2 nd arm 93b is formed at the other end of the torsion coil spring 93. The 1 st arm 93a is fitted into, for example, a fitting hole 96a of the handle 96, and is swingable integrally with the swing member 91. The 2 nd arm 93b is fixed to the cover member 51, for example. The torsion coil spring 93 is included in the biasing portion of the present invention, similarly to the torsion coil spring 83.

(state of wire-connecting Member attached to heating part)

Next, a state of the wire member 43 attached to the heating unit 41 of the 1 st heating device 13 having the above-described configuration will be described. In a state where the wire member 43 is attached to the heating portion 41 and held by the elastic deformation holding portion 60, both the abutting portion 85b of the swinging member 81 and the abutting portion 95b of the swinging member 91 are located at overlapping positions (see fig. 6 (a) and (c)). The swing member 81 is biased to the overlapping position side (left side of the drawing sheet of fig. 6 (a)) by the torsion coil spring 83, and the swing member 91 is biased to the overlapping position side (right side of the drawing sheet of fig. 6 (c)) by the torsion coil spring 93. Thereby, the wire member 43 is prevented from falling off from the heating portion 41.

With the above arrangement of the plurality of flexing portions 61, the hooking portions 62, and the hooking portions 63, as shown by the solid line in fig. 5, the wire member 43 is attached to the heating portion 41 in a state of being elastically deformed when viewed from the width direction. More specifically, both ends of the wire members 43 in the extending direction are deflected to the other side in the height direction (the side opposite to the working space S). Further, the wire members 43 are deflected to one side (working space S side) in the height direction than portions of the both end portions closer to the center of the 1 st heating device 13 in the extending direction. The plurality of inner side portions are intended to return to the other side in the height direction due to elastic restoring force. However, the movement of the portion of the wire member 43 that contacts the plurality of flexing portions 61 (hereinafter, including the plurality of inner portions of the 1 st portion 43 f) to the other side in the height direction is restricted by the plurality of flexing portions 61. Therefore, according to the principle of reaction, a force (see arrow in fig. 5, which faces downward on the paper surface) is applied to the plurality of inner portions in the height direction by the plurality of flexing portions 61. Further, the 2 nd and 3 rd portions 43s and 43t of the wire member 43 are intended to return to one side in the height direction due to elastic restoring force. However, the movement of the 2 nd and 3 rd portions 43s and 43t to one side in the height direction is restricted by the abutment portion 85b of the hooking portion 62 and the abutment portion 95b of the hooking portion 63, respectively. Therefore, according to the principle of reaction, a force in the other side in the height direction is applied by the hooking portions 62 and 63 (see an arrow in the upper direction of the drawing sheet of fig. 5). In this way, the wire member 43 is attached to the heating portion 41 in an elastically deformed state. Thus, a cross-sectional curve 59 (see fig. 3 (b)) of the wire bonding surface 57 perpendicular to the width direction has a predetermined curvature. The radius of curvature of the cross-section curve 59 at each position is, for example, 15 to 20 meters. The radius of curvature at each position of the cross-sectional curve 59 may be substantially constant in the extending direction, but is not limited thereto.

(method for attaching/detaching wire-connecting Member)

A method of attaching and detaching the wire member 43 to and from the heating unit 41 will be described. First, a method of detaching the wire member 43 from the heating unit 41 will be described. The operator operates the swinging members 81 and 91 of the elastic deformation holding portion 60 to move (swing) the abutment portions 85b and 95b from the overlapped position to the retracted position, thereby releasing the restriction of the movement of the both end portions in the extending direction of the wire connecting member 43 to the one side in the height direction. Thus, the operator can remove the wire member 43 from the heating unit 41 by holding the wire member by hand and moving the wire member to one side in the height direction (passing through) in the storage space 56. Therefore, the work of cleaning the wire member 43 becomes easy. The operator may move the abutment portions 85b, 95b from the overlapping position to the retracted position substantially simultaneously, and remove the entire wire member 43 from the heating portion 41 at a time. Alternatively, for example, after one of the abutment portions 85b and 95b is moved to the retracted position to detach a part of the wire member 43 from the heating portion 41, the operator may move the other of the abutment portions 85b and 95b to the retracted position to detach the entire wire member 43 from the heating portion 41. When the wire member 43 is detached from the heating portion 41, it returns to its original shape (substantially straight line shape, see the two-dot chain line of fig. 5) due to the elastic restoring force.

Next, a method of attaching the wire member 43 to the heating unit 41 will be described. The operator holds the wire member 43 by hand and inserts it into the storage space 56. Further, the operator moves both end portions of the wire members 43 to the other side in the height direction while pressing the inner portions of the wire members 43 in the extending direction against the plurality of flexing portions 61. Thereby, the wire member 43 starts to elastically deform. Further, the operator moves both ends of the wire member 43 in the extending direction to the other side in the height direction while pressing the wire member 43 against the inclined surfaces 85c and 95 c. As a result, a force for moving the abutting portions 85b, 95b to the retracted positions is applied to the swinging members 81, 91 as a force opposing the biasing force of the torsion coil springs 83, 93. Thus, when the 2 nd portion 43s and the 3 rd portion 43t of the wire member 43 move to the other side in the height direction than the abutment surfaces 85a, 95a, the abutment portions 85b, 95b return to the overlapping position from the retracted position due to the urging forces of the torsion coil springs 83, 93. Thereby, the wire member 43 is attached to the heating portion 41 in an elastically deformed state.

As described above, the wire member 43 is attached to the heating portion 41 in a state of being elastically deformed by the elastic deformation holding portion 60 so that the cross-sectional curve 59 of the wire bonding surface 57 has a predetermined curvature. In other words, even when the wire member 43 that extends straight at the time of manufacture is attached to the 1 st heating device 13, the wire surface 57 can be formed into a desired shape by simply elastically deforming the wire member 43. This can reduce the processing cost of the wire member 43 compared with the case of manufacturing a wire member (not shown) that is processed in advance according to the specification of the 1 st heating device 13. Thus, the manufacturing cost of the wire member 43 for the 1 st heating device 13 can be reduced.

The wire member 43 is detachable from the heating unit 41 during cleaning. Therefore, the efficiency of the cleaning operation of the wire member 43 can be improved regardless of the arrangement of the 1 st heating device 13.

For example, the wire member 43 may be inserted into or removed from the heating unit 41 in the extending direction, so that the wire member 43 is attached to or detached from the heating unit 41. However, in such a case, a long space for attachment and detachment needs to be secured at a position adjacent to the 1 st heating device 13 in the extending direction, and therefore, there is a large restriction on the layout of the periphery of the 1 st heating device 13. Even if a long space adjacent to the 1 st heating device 13 in the extending direction is ensured, for example, when a member defining a yarn path such as the yarn stop guide 12 (see fig. 1) is disposed in such a space, the following problem may occur. That is, for example, before the wire member 43 is inserted or pulled out in the extending direction, it may be necessary to temporarily move the member around the 1 st heating device 13 such as the stop yarn guide 12. In this case, the thread path defined by the thread guide 12 or the like may be changed accidentally before and after the attachment and detachment of the thread joining member 43, in addition to the increase in the labor of the operator. In this regard, in the present embodiment, the wire members 43 can be attached to and detached from the heating portion 41 by moving the wire members 43 in the height direction. In such a configuration, unlike the case where the heating portion 41 is configured to attach and detach the wire member 43 by inserting or extracting the wire member 43 in the extending direction, it is not necessary to secure a long space adjacent to the 1 st heating device 13 in the extending direction. In addition, it is not necessary to move the peripheral members of the 1 st heating device 13 at the time of attaching and detaching the wire members 43. Accordingly, the occurrence of defects such as restrictions in the layout of the periphery of the 1 st heating device 13 can be suppressed.

In the present embodiment, a force is applied to a portion of the wire members 43 in the extending direction in one direction in the height direction, and a force is applied to a portion of the wire members 43 on both sides in the extending direction in the other direction in the height direction. This can flex the wire member 43. Thus, the wire member 43 can be elastically deformed by a simple structure.

Further, the movement of the 1 st portion 43f to the other side in the height direction is restricted by the flexure 61, and thereby, a force to one side in the height direction is applied to the 1 st portion 43f according to the rule of reaction by the action. Further, the abutment portions 85b and 95b restrict the movement of the 2 nd and 3 rd portions 43s and 43t to one side in the height direction, respectively, and thereby apply a force to the other side in the height direction to the 2 nd and 3 rd portions 43s and 43t according to the principle of reaction. Thus, the wire member 43 can be elastically deformed by a simple structure.

The abutting portions 85b and 95b are movable between the retracted position and the overlapping position. Thus, in the operation of attaching the wire member 43 to the heating unit 41, the wire member 43 can be attached to the heating unit 41 by a simple operation of temporarily moving the abutting portions 85b and 95b to the retracted position and moving the abutting portions 85b and 95b to the overlapping position in the state where the wire member 43 is deflected. Further, when the wire member 43 is attached to the heating unit 41, the wire member 43 can be detached from the heating unit 41 by a simple operation of temporarily moving the abutting portions 85b and 95b to the retracted positions.

The abutting portion 85b is biased from the retracted position to the overlapping position by the torsion coil spring 83. The abutting portion 95b is biased from the retracted position to the overlapping position by the torsion coil spring 93. This can suppress the contact portion 85b and the contact portion 95b from moving accidentally from the overlapping position to the retracted position.

The swinging members 81 and 91 (i.e., the abutting portions 85b and 95 b) are supported swingably by swinging shafts 82 and 92, respectively. Thus, the space required for movement of the abutting portion 85b and the abutting portion 95b can be made compact.

Next, a modified example in which the above embodiment is modified will be described. However, the same reference numerals are given to the components having the same configuration as those of the above embodiment, and the description thereof will be omitted appropriately.

(1) In the above embodiment, the flexure 61 is fixed to the heating unit 41 and cannot move relative to the heating unit 41. However, the present invention is not limited thereto. The flexure 61 may be configured to be movable (movable in parallel or swingable) in the extending direction and/or the height direction with respect to the heating portion 41, for example. For example, an adjustment member (not shown) for manually adjusting the position of the flexure 61 may be provided. Alternatively, for example, an electric actuator (not shown) for moving the flexure 61 may be provided. Further, the whole of the hooking portion 62 and/or the whole of the hooking portion 63 may be movable in the extending direction and/or the height direction in addition to the flexing portion 61 (or instead of the flexing portion 61). That is, at least one of the deflection portion 61, the contact portion 85b, and the contact portion 95b may be configured to be changeable in position with respect to the heating portion 41 in at least one of the extending direction and the height direction. Thus, even after the 1 st heating device 13 is provided, the curvature of the cross-sectional curve 59 of the wire bonding surface 57 can be adjusted as needed.

(2) In the above embodiment, the plurality of flexure portions 61 are bolt-like members extending in the width direction. However, the present invention is not limited thereto. Each of the plurality of flexure 61 may also extend in the height direction, for example. Alternatively, each of the plurality of flexure portions 61 may be a member other than a bolt as long as it has a function of restricting the movement of the wire member 43 to the other side in the height direction. Each of the flexure 61 may be, for example, a plate-like member or a block-like member. Alternatively, each of the plurality of flexure portions 61 may be a spring member configured to apply a force to one side in the height direction to the wire member 43, such as a leaf spring. The heating portion 41 is provided with a plurality of flexure portions 61, but is not limited thereto. Only one flexure 61 may be attached to the heating unit 41.

(3) In the above embodiments, the swinging members 81 and 91 are biased from the retracted positions to the overlapped positions by the torsion coil springs 83 and 93, respectively. However, the present invention is not limited thereto. Instead of the torsion coil springs 83, 93, other kinds of spring members such as leaf springs may be provided. Alternatively, an elastic member made of rubber or the like may be provided instead of the spring member. Alternatively, a cylinder or the like may be provided instead of the elastic member. These configurations also correspond to the biasing portion of the present invention. Alternatively, such a biasing portion may not be provided. That is, the swinging members 81 and 91 may not be biased.

(4) In the embodiment described above, the swinging member 81 has the inclined surface 85c, and the swinging member 91 has the inclined surface 95c. However, the present invention is not limited thereto. Instead of the inclined surfaces 85c and 95c, a curved surface (not shown) curved when viewed in the extending direction may be provided. Alternatively, the inclined surfaces 85c and 95c may not be provided.

(5) In the above embodiments, the swinging members 81 and 91 are swingably supported by the swinging shafts 82 and 92. However, the present invention is not limited thereto. For example, a support member (not shown) may be provided to support members having the same shape as the swing members 81 and 91 so as to be movable in parallel in the width direction.

(6) In the above embodiment, the heating portion 41 is provided with the hooking portions 62 and 63. That is, the abutting portions 85b and 95b apply a force to the other side in the height direction to the wire members 43. However, the present invention is not limited thereto. For example, two cylinders or electric actuators (the 2 nd and 3 rd urging portions of the present invention) not shown may be provided instead of the hooking portions 62 and 63, and the cylinders or electric actuators may be configured to apply a force to the other side in the height direction to the wire members 43. Alternatively, instead of the hooking portions 62 and 63, two bolt members (not shown) identical or similar to the flexure 61 may be provided. In this case, the two bolt members may not be movable between the retracted position and the overlapping position.

(7) In the above-described embodiment, when the wire member 43 is attached to and detached from the heating unit 41, the wire member 43 can pass through the storage space 56 in the height direction. However, the present invention is not limited thereto. The wire member 43 may be attached to or detached from the heating portion 41 by, for example, being inserted into or removed from the heating portion 41 in the extending direction.

(8) In the above embodiment, the wire member 43 is detachable from the heating unit 41 through the elastic deformation holding unit 60. However, the present invention is not limited thereto. For example, the heating unit 41 may be configured such that the wire member 43 cannot be removed after the wire member 43 is attached. For example, a screw hole (not shown) may be formed in the wire connecting member 43. The heating portion 41 may be configured to screw the wire member 43, and the wire member 43 may be configured to be not easily attached and detached. In such a configuration, a bolt, not shown, used for screw-fastening the wire member 43 may be fastened to the heating portion 41 by welding or the like. In this case, the member configured to hold the wire member 43 in an elastically deformed state corresponds to the elastically deformed holding portion of the present invention.

(9) In the above embodiment, the heating unit 41 has the accommodation space 56 opened on one side (the working space S side) in the height direction. However, the shape of the storage space 56 and the shape of the heating portion 41 are not limited thereto. For example, the storage space 56 may have an inclination (not shown) of 45 degrees or less with respect to the height direction in a cross section orthogonal to the extending direction. Alternatively, the storage space 56 may have a substantially L-shaped cross section perpendicular to the extending direction, for example, and may be opened at one end in the width direction in addition to one side in the height direction (not shown). In this case, for example, the wire member 43 may be attached to or detached from the opening (not shown) formed at one end in the width direction.

(10) In the above embodiments, the heating portion 41 corresponds to the mounting portion of the present invention. However, the present invention is not limited thereto. As a specific example, other members (hereinafter, a heat insulating member or the like) such as a heat insulating member (not shown) may be provided instead of the 2 nd heating member 55. In such a configuration, the heat insulating member and the like are not included in the heating portion 41. In this case, the wire members 43 can be attached to the 1 st heating device 13 by housing the wire members 43 in a space (not shown) formed by the 1 st heating member 54, the heat insulating member, and the like. In such a configuration, the heating portion 41 and the heat insulating member and the like are combined together to correspond to the mounting portion of the present invention. In other words, the mounting portion includes the heating portion 41.

(11) In the above-described embodiment, the wire member 43 is formed by cutting a member made of stainless steel. However, the present invention is not limited thereto. The wire member 43 may be formed by bending (metal plate processing) a plate-like member, for example. The material constituting the wire receiving member 43 is not limited to stainless steel.

(12) In the above-described embodiment, the 1 st heating device 13 having the sheathed heater as the heat source 42 is provided in the false twist machine 1. However, the present invention is not limited thereto. Instead of the 1 st heating device 13, a known heat carrier heater for heating the yarn splicing member 43 with a heat medium may be provided in the false twist texturing machine 1. In this case, the dado heat carrier heater corresponds to the heating device of the present invention. A member (not shown) forming a passage in which a heat medium is sealed corresponds to the heat source of the present invention.

(13) In the embodiment described above, the 1 st heating device 13 is configured to be capable of heating two wires Y. However, the present invention is not limited thereto. The 1 st heating device 13 may be configured to heat one yarn Y. Alternatively, the 1 st heating device 13 may be configured to be capable of heating three or more filaments Y.

(14) The 1 st heating device 13 is not limited to the false twisting machine 1 of the present embodiment, and may be provided in a known false twisting machine (not shown) having another configuration. Alternatively, the 1 st heating device 13 may be provided in a yarn processing machine that processes a yarn (not shown) while advancing the yarn (not shown) such as a known air processing machine (not shown), for example, in addition to the false twisting machine.

Claims

1. A heating device for heating a running yarn is characterized by comprising:

a heat source;

a heating unit which is extended in a predetermined extending direction and is heated by the heat source;

a yarn joining member having a yarn joining surface for contacting the yarn, and being heated by the heating portion in a state of extending at least along the extending direction; and

an installation part comprising the heating part and provided with the wire connecting component,

the wire bonding surface extends at least along the extending direction and is oriented at least to one side in a predetermined height direction orthogonal to the extending direction,

The heating device includes an elastic deformation holding portion that holds the wire-bonding member attached to the attachment portion in a state of elastic deformation when viewed from a width direction orthogonal to both the extending direction and the height direction,

the cross-sectional curve of the wire bonding surface orthogonal to the width direction has a predetermined curvature in a state where the wire bonding member is elastically deformed and held by the elastic deformation holding portion.

2. A heating apparatus according to claim 1, wherein,

the elastic deformation holding portion detachably holds the wire-receiving member to the mounting portion.

3. A heating apparatus according to claim 2, wherein,

the attachment portion has an attachment/detachment passage through which the wire-receiving member can pass in the height direction when the wire-receiving member is attached/detached.

4. A heating device according to any one of claims 1 to 3,

the elastic deformation holding portion includes:

a 1 st urging portion configured to apply a force to the one side in the height direction to a 1 st portion located at a predetermined position in the extending direction of the wire-bonding member mounted to the mounting portion;

A 2 nd urging portion configured to apply a force to the other side in the height direction to a 2 nd portion on one side in the extending direction than the 1 st portion of the wire bonding member attached to the attachment portion; and

and a 3 rd urging portion configured to apply a force to the other side in the height direction to a 3 rd portion of the wire bonding member attached to the attachment portion, the 3 rd portion being located on the other side in the extending direction than the 1 st portion.

5. A heating apparatus according to claim 4, wherein,

the 1 st urging portion has a 1 st restricting portion located on the other side of the 1 st portion in the height direction, the 1 st restricting portion restricting movement of the 1 st portion to the other side in the height direction,

the 2 nd urging portion has a 2 nd restricting portion located on the one side of the 2 nd portion in the height direction, restricting movement of the 2 nd portion to the one side in the height direction,

the 3 rd urging portion has a 3 rd restricting portion that is located on the one side of the 3 rd portion in the height direction and restricts movement of the 3 rd portion to the one side in the height direction.

6. A heating apparatus according to claim 5, wherein,

the 2 nd restriction portion and the 3 rd restriction portion are movable between a retracted position where they do not overlap the wire bonding member when viewed from the height direction and an overlapping position where they overlap the wire bonding member when viewed from the height direction.

7. A heating apparatus according to claim 6, wherein,

the heating device includes a biasing portion that biases the 2 nd regulating portion and the 3 rd regulating portion from the retracted position to the overlapping position, respectively.

8. A heating apparatus according to claim 6 or 7, wherein,

the heating device includes a swinging shaft that supports the 2 nd restriction portion and the 3 rd restriction portion so as to be swingable.

9. A heating device according to any one of claims 5 to 8,

at least one of the 1 st restriction portion, the 2 nd restriction portion, and the 3 rd restriction portion is capable of changing a position with respect to the mounting portion in at least any one of the extending direction and the height direction.