Yarn heater and false-twist texturing machine

Abstract

This invention provides a wire heating device and a false twisting processing machine, which reduces power consumption and facilitates the removal of wire contact components. Wire contact components (54a, 54b) are detachably mounted in grooves (53a, 53b), which are defined by a heating component (52), extend along a predetermined extension direction, and open to one side (the lower side) in a vertical direction orthogonal to the extension direction. Side heat insulation components (71, 73) and a central heat insulation component (72) are arranged along the length of the machine body. The gap formed between the central heat insulation component (72) and the side heat insulation components (71, 73) constitutes a wire guide passage (58a, 58b) for guiding the wires (Ya, Yb) to the two wire contact components (54a, 54b) mounted in the two grooves (53a, 53b). A central heat insulation component (72) is provided in opposing regions (59a, 59b) that are opposite to the grooves (53a, 53b) in the vertical direction, and the central heat insulation component (72) provided in the opposing regions (59a, 59b) can be removed.

Description

Technical Field

[0001] This invention relates to a wire heating device and a false twisting processing machine for heating wires. Prior Technology

[0002] Patent Document 1 discloses a heating device (thread heating device) for a false twisting machine used to perform false twisting on traveling threads. This heating device includes a sheath heater (heat source), a heating element (heating component) heated by the sheath heater, and a contact plate (thread contact component) having a thread contact surface that contacts the thread and is heated by the heating element. The contact plate is disposed in a groove, a portion of which is defined by the heating element, extends along a predetermined extension direction, and opens on one side in an orthogonal direction orthogonal to the extension direction.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2002-194631 Summary of the Invention

[0004] [The problem the invention aims to solve]

[0005] In the aforementioned wire heating device, it is desirable to suppress the release of heat from the heat source to the outside through the internal space of the groove, thereby reducing power consumption. Therefore, it is considered to place a heat insulation component at a position opposite to the groove in the orthogonal direction.

[0006] However, the wire contact component of the wire heating device needs to be periodically removed from the groove for maintenance such as removing dirt and molten wire. With the aforementioned heat insulation component installed, the wire contact component cannot be removed in the orthogonal direction. Therefore, the wire contact component is removed in the extending direction. When removing the wire contact component in the extending direction, it is necessary to avoid interference between the wire guide and other devices located on the wire channel and the wire contact component. Specifically, it is necessary to move the wire guide or other devices located on the wire channel or to rotate the wire heating device itself. These operations are cumbersome and difficult to operate.

[0007] The purpose of this invention is to provide a wire heating device and a false twisting processing machine that reduce power consumption and facilitate the removal of wire contact parts. [Technical means used to solve the problem]

[0008] The first invention provides a thread heating device with one or more grooves that allow thread travel and open to one side in an orthogonal direction orthogonal to the extension direction, wherein the extension direction is the direction in which the thread extends along the groove. The thread heating device is capable of heating a thread traveling in the groove and includes: a heating member extending along the extension direction and defining at least a portion of the groove for heating the thread traveling in the groove; a thread contact member, one or more of which are detachably mounted in one or more grooves and are capable of contacting the thread traveling in the groove; and two or more heat insulation members arranged in a width direction orthogonal to both the extension direction and the orthogonal direction, wherein the gap between two adjacent heat insulation members forms a thread guide path for guiding the thread to the thread contact member mounted in the groove, and at least a portion of at least one of the two or more heat insulation members is disposed in an opposing region opposite to one or more grooves in the orthogonal direction, and all the heat insulation members disposed in the opposing region are removable.

[0009] In this invention, the heat insulation component suppresses heat loss through the internal space of the groove to the outside, reducing power consumption. Furthermore, when guiding the wire to the wire contact component installed in the groove for wire placement, the heat insulation component does not need to be removed; the wire can be guided through the wire guide passage. Therefore, even during wire placement, heat loss through the heat insulation component can be suppressed, reducing power consumption. Moreover, by removing all the heat insulation components disposed in the opposing region, the opposing region opposite the groove in the orthogonal direction can be released. Thus, the wire contact component installed in the groove can be removed in the orthogonal direction. Therefore, unlike when removing the wire contact component in the extending direction, the cumbersome operation of moving the wire guide or rotating the wire heating device itself on the wire channel is eliminated. Therefore, the removal of the wire contact component is easy.

[0010] The second invention provides a wire heating device in which, in the first invention, at least one of the two or more heat-insulating components is disposed outside the opposing region and cannot be removed, nor does it move with the removal of the heat-insulating component disposed in the opposing region.

[0011] In this invention, when removing the wire contact component from the groove, it is possible to avoid accidentally removing the heat insulation component that does not need to be removed.

[0012] The third invention's wire heating device is such that, in the first or second invention, the length in the width direction of the wire inlet, i.e., the wire guide opening, in the wire guide passage is shorter than the length in the width direction of the groove.

[0013] In this invention, the width of the guide wire opening (the end opposite to the groove side) of the guide wire passage can be kept relatively narrow. Therefore, heat can be reliably prevented from escaping to the outside through the internal space of the groove.

[0014] The fourth invention is a wire heating device in which, in the first to third inventions, the heat insulation component disposed in one of the aforementioned opposing regions is one.

[0015] In this invention, by removing one heat-insulating component, the opposing region facing at least one groove can be released, and the wire contact component installed in the groove can be removed. Therefore, the sequence of removing the wire contact component can be simplified.

[0016] The fifth invention provides a wire heating device in which, in the fourth invention, the heat insulation component includes: a first heat insulation component disposed in the opposing region of at least one of the grooves; and a second heat insulation component arranged with the first heat insulation component in the width direction. The gap between the first heat insulation component and the second heat insulation component forms the wire guide passage. When assuming an imaginary straight line extending along the orthogonal direction and passing through the center of the groove in the width direction, viewed from the extension direction, the opposing surface of the first heat insulation component with respect to the second heat insulation component is inclined relative to the imaginary straight line. Relative to the imaginary straight line, the end on one side of the orthogonal direction is located on the side of the second heat insulation component, and the end on the other side of the orthogonal direction is located on the opposite side of the second heat insulation component.

[0017] For example, consider a case where the opposing surface of the first heat insulation component to the second heat insulation component is orthogonal to the width direction, and this opposing surface is located on the side of the second heat insulation component relative to an imaginary straight line extending along the orthogonal direction and passing through the center of the groove in the width direction. In this case, when the wire is guided to the wire contact component installed in the groove via the wire guide passage, the end of the wire interferes with the other side (groove side) of the orthogonal direction of the first heat insulation component. On the other hand, the further away the opposing surface is from the second heat insulation component, the smaller the portion of the groove facing the first heat insulation component. In the present invention, when the wire is guided via the wire guide passage, it is possible to make it difficult for the wire to interfere with the end of the first heat insulation component on the other side (groove side) of the orthogonal direction. At the same time, it is possible to sufficiently ensure that the portion of the groove facing the first heat insulation component can sufficiently suppress heat release to the outside through the internal space of the groove.

[0018] The wire heating device of the sixth invention is that, in the fourth or fifth invention, a plurality of the grooves are arranged in the width direction, and a heat insulation member is arranged across two opposing regions that are opposite each other in the orthogonal direction to two adjacent grooves in the width direction.

[0019] In this invention, by removing one heat insulation component, two opposing regions facing each other in the orthogonal direction with the two grooves can be released, allowing the wire contact component installed in the two grooves to be removed in the orthogonal direction. Therefore, the sequence of removing the wire contact component can be further simplified. Furthermore, by removing one heat insulation component, a wider area spanning the two opposing regions facing each other in the orthogonal direction with the two grooves can be released. Therefore, the removal of the wire contact component can be easily performed over a wider area.

[0020] The seventh invention provides a wire heating device in which, in the sixth invention, the heat insulation component comprises: a central heat insulation component spanning two opposing regions disposed in the orthogonal direction opposite to the two adjacent grooves in the width direction; and two side heat insulation components disposed on both sides of the central heat insulation component in the width direction. The gap between the central heat insulation component and the two side heat insulation components forms the wire guide path for guiding the wire to the wire contact component installed in the two grooves. The central heat insulation component, viewed from the extension direction, has a trapezoidal shape extending from the other side of the orthogonal direction toward the other side. When viewed from the extension direction, the end of the central heat insulation component on the other side of the orthogonal direction is located between two imaginary straight lines extending along the orthogonal direction and passing through the centers of the two grooves in the width direction.

[0021] Here, "the end of the other side of the orthogonal direction in the aforementioned central insulation component" refers to the portion of the central insulation component having a trapezoidal shape that extends from the other side of the orthogonal direction to one side when viewed from the extending direction, corresponding to the bottom edge of the other side of the orthogonal direction.

[0022] In this invention, when the wire is guided through the wire guide passage to the wire contact component installed in the groove, the wire is unlikely to interfere with the end of the central heat insulation component on the other side (groove side) in the orthogonal direction.

[0023] The wire heating device of the eighth invention is such that, in the seventh invention, when viewed from the aforementioned extension direction, the end of the other side of the aforementioned orthogonal direction of the aforementioned central heat insulation member faces the aforementioned two grooves respectively in the aforementioned orthogonal direction.

[0024] In this invention, when the wire is guided through the wire guide passage to the wire contact component installed in the groove, the wire is less likely to get caught on the edge of the groove. Therefore, the wire can be smoothly guided from the wire guide passage to the groove.

[0025] The wire heating device of the ninth invention is such that, in the seventh or eighth invention, when viewed from the aforementioned extension direction, the end of one side of the aforementioned central heat insulation member in the aforementioned orthogonal direction extends to the outside of the aforementioned two opposing regions.

[0026] In this invention, the space formed between the two side insulation members by removing a central insulation member held between the two side insulation members extends to the outside of at least two opposing regions. Therefore, a wider space can be ensured for the operation of removing the wire contact member, making the operation easier.

[0027] The wire heating device of the 10th invention is such that, in the 7th to 9th inventions, the interval in the width direction between the ends of the two side heat insulation members facing each other in the width direction on the other side of the two faces that are respectively opposite to the central heat insulation member is shorter than the interval in the width direction between the ends of the two sides in the orthogonal direction.

[0028] In this invention, by removing a central heat-insulating member held between two side heat-insulating members, a space extending away from the groove can be formed between the two side heat-insulating members. Therefore, it is possible to easily remove the wire contact member in an orthogonal direction.

[0029] The 11th invention provides a wire heating device in which, in the 1st to 10th inventions, the wire heating device further includes a support member capable of supporting the heat insulation member. The support member can be configured as a support position supporting the heat insulation member and a non-support position not supporting the heat insulation member.

[0030] Furthermore, the "supporting heat insulation component" in this invention includes not only the case where the supporting component directly supports the heat insulation component by contacting the heat insulation component, but also the case where the supporting component indirectly supports the heat insulation component by contacting the component installed on the heat insulation component.

[0031] In this invention, the heat insulation component can be easily removed by moving the support member from the supported position to the non-supported position.

[0032] The 12th invention provides a wire heating device that, in the 11th invention, further includes a force-applying component that can apply a force to the support component in a direction of movement from the non-support position to the support position.

[0033] In this invention, it is possible to prevent the support component from accidentally moving from the supported position to the non-supported position.

[0034] The false twisting processing machine of the 13th invention is equipped with the thread heating device of any of the inventions of the 1st to 12th inventions described above.

[0035] In this invention, the power consumption of the wire heating device can be reduced by using an insulating component. Furthermore, removing the wire contact component from the groove does not require complicated procedures, thus simplifying the operation.

[0036] The false twisting processing machine of the 14th invention, in the 13th invention, comprises: a yarn supply unit for supplying yarn; a processing unit having multiple devices including the aforementioned yarn heating device for performing false twisting processing on the yarn supplied from the yarn supply unit; and a winding device for winding the yarn processed by the processing unit. The winding device is mounted on a winding table. The multiple devices of the processing unit are mounted on a main body arranged opposite to the winding table in a working space and a support frame connecting the upper part of the winding table to the upper part of the main body. The yarn heating device heats the yarn traveling in a groove that extends along an extension direction and opens in a direction orthogonal to the extension direction and opposite to the working space.

[0037] In this invention, when removing the wire contact component from the groove, other devices do not interfere with the wire contact component, making the removal of the wire contact component easy. Furthermore, when removing the wire contact component, it is not necessary to move components or devices located on the wire channel or rotate the wire heating device. Therefore, the possibility of wire channel misalignment due to the removal of the wire contact component can be reduced.

[0038] The false twisting processing machine of the 15th invention, in the 13th invention, includes: a first thread channel forming member disposed upstream of the aforementioned thread heating device in the thread traveling direction, supporting the thread for free movement; and a second thread channel forming member disposed downstream of the aforementioned thread heating device in the thread traveling direction, supporting the thread for free movement, wherein the thread channel in the aforementioned groove is formed by the aforementioned first thread channel forming member and the aforementioned second thread channel forming member.

[0039] In this invention, the thread can be guided by the groove by hanging the thread on the first thread channel forming member and the second thread channel forming member. Simple Explanation of the Diagram

[0040] [Figure 1] is a side view of a false twisting processing machine according to one embodiment of the present invention. [Figure 2] is a schematic diagram of unfolding the false twisting machine along the path of the silk thread. [Figure 3] is a diagram showing the first heating device. [Figure 4] is a cross-sectional view along line IV-IV of the first heating device shown in Figure 3. [Figure 5] is a cross-sectional view along line VV of the first heating device shown in Figure 4. [Figure 6] (a) shows the heating part of Figure 4, and (b) is a cross-sectional view along line bb of (a). [Figure 7] is a view of the heating part from the extension direction. (a) shows the state where the fixing plate is in the contact position, and (b) shows the state where the fixing plate is in the retracted position. [Figure 8] is a view of the first heating device from the extending direction. [Figure 9] is a cross-sectional view of the end of the first heating device on one side of the extension direction of the door in the open position, cut with a plane orthogonal to the length direction of the body. [Figure 10] is a diagram showing the heating part, the side heat insulation component and the central heat insulation component of Figure 4. [Figure 11] is an exploded perspective view of the central panel, the central heat insulation component, and the end panels. [Figure 12] is a diagram illustrating the operation of the door, the heating element, the side insulation component and the central insulation component. (a) shows the door in the closed position, (b) shows the door in the open position, and (c) shows the door with the central insulation component removed. [Figure 13] is a diagram showing a modified embodiment of the heating section, the first heat insulation member, and the second heat insulation member. Implementation

[0041] A preferred embodiment of the false twisting processing machine 1 of the present invention will be described with reference to FIG1. ​​In FIG1, the direction perpendicular to the paper surface is defined as the length direction of the machine body, and the left-right direction of the paper surface is defined as the width direction of the machine body. The direction orthogonal to both the length and width directions of the machine body is defined as the up-down direction of gravity. The length and width directions of the machine body are substantially parallel to the horizontal direction.

[0042] (Overall structure of false twisting processing machine 1) The false-twisting machine 1 is capable of false-twisting yarns Y made of synthetic fibers such as nylon (polyamide fiber) and polyester. The false-twisting machine 1 includes a yarn feeding section 2 for supplying yarns Y, a processing section 3 for false-twisting the yarns Y supplied from the yarn feeding section 2, and a winding section 4 for winding the yarns Y processed by the processing section 3 onto a winding bobbin Bw. Multiple components of the yarn feeding section 2, processing section 3, and winding section 4 are arranged along the length of the machine body (see Figure 2). The length of the machine body is orthogonal to the travel surface of the yarn Y (the plane of the paper in Figure 1) formed by the yarn passage from the yarn feeding section 2 through the processing section 3 to the winding section 4.

[0043] The yarn feeding section 2 has a bobbin 5 that holds multiple yarn feed packages Ps. The yarn feeding section 2 supplies multiple yarns Y to the processing section 3. The processing section 3 performs false twisting on the yarns Y supplied from the yarn feed packages Ps. The processing section 3, from the upstream side in the yarn travel direction, is sequentially arranged with a first feed roller 11, a twist stop guide 12, a first heating device 13 (equivalent to the "yarn heating device" of the present invention), a cooling device 14, a false twisting device 15, a second feed roller 16, a winding device 17, a third feed roller 18, a second heating device 19, and a fourth feed roller 20. The winding section 4 has multiple winding devices 21. Each winding device 21 winds the yarns Y, which have been false twisted by the processing section 3, onto a winding bobbin Bw to form a wound package Pw.

[0044] The false twisting processing machine 1 has a main body 8 and a winding table 9 arranged at intervals in the width direction of the machine body. The main body 8 and the winding table 9 extend to approximately the same length in the length direction of the machine body. The main body 8 and the winding table 9 are arranged to face each other in the width direction of the machine body. The upper part of the main body 8 and the upper part of the winding table 9 are connected by a support frame 10. The various devices constituting the processing section 3 are mainly mounted on the main body 8 and the support frame 10. The various devices constituting the winding section 4 are mounted on the winding table 9. The main body 8, the winding table 9 and the support frame 10 form a working space A for the operator to perform operations such as thread hanging on the various devices. The thread channel is formed so that the thread Y mainly travels around the working space A.

[0045] The false twisting machine 1 has a unit unit called a span, comprising a set of main bodies 8 arranged opposite each other and a winding table 9. Within a span, multiple processing units (also called spindles) with yarn channels formed by various devices constituting the processing section 3 are arranged along the length of the machine body. Thus, within a single span, multiple yarns Y traveling along the length of the machine body can be false twisted simultaneously. In the false twisting machine 1, the spans are arranged symmetrically on the paper surface about the center line C of the main body 8 in the width direction. The main bodies 8 are shared in both left and right spans.

[0046] (Composition of machining section 3) The configuration of the processing unit 3 will be described with reference to Figures 1 and 2. The first feed roller 11 feeds the yarn Y unwound from the yarn package Ps installed in the yarn supply unit 2 to the first heating device 13. For example, as shown in Figure 2, the first feed roller 11 feeds one yarn Y to the first heating device 13. The first feed roller 11 may also feed multiple adjacent yarns Y downstream in the yarn travel direction. The anti-twist guide 12 supports the yarn Y for free movement. The anti-twist guide 12 prevents the twisting of the yarn Y by the false twisting device 15 from propagating upstream of the anti-twist guide 12 in the yarn travel direction.

[0047] The first heating device 13 is used to heat the yarn Y fed from the first feed roller 11 to a specified processing temperature. As shown in FIG1, the first heating device 13 is positioned above the workspace A. For example, as shown in FIG2, the first heating device 13 is capable of heating two yarns Y. More details about the first heating device 13 will be described later.

[0048] The cooling device 14 cools the filament Y heated by the first heating device 13. For example, as shown in FIG2, the cooling device 14 cools one filament Y. The cooling device 14 may also be able to cool multiple filaments Y simultaneously.

[0049] The false twisting device 15 is disposed downstream of the cooling device 14 in the direction of yarn travel. The false twisting device 15 supports the yarn Y for free movement. The false twisting device 15 twists the yarn Y. The false twisting device 15 is, for example, a so-called disc friction type false twisting device, but is not limited to this.

[0050] The second feed roller 16 conveys the yarn Y, processed by the false twisting device 15, to the winding device 17. The conveying speed of the yarn Y by the second feed roller 16 is faster than that by the first feed roller 11. As a result, the yarn Y is stretched and false twisted between the first feed roller 11 and the second feed roller 16.

[0051] The interlocking device 17 applies interlocking to the thread Y. The interlocking device 17, for example, has a known interlocking nozzle that applies interlocking to the thread Y by means of airflow.

[0052] The third feed roller 18 feeds the yarn Y traveling downstream of the yarn in the yarn travel direction from the winding device 17 to the second heating device 19. For example, as shown in FIG2, the third feed roller 18 feeds one yarn Y to the second heating device 19. The third feed roller 18 may also feed multiple adjacent yarns Y downstream of each other in the yarn travel direction. In addition, the feeding speed of the yarn Y by the third feed roller 18 is slower than the feeding speed of the yarn Y by the second feed roller 16. Therefore, the yarn Y is slack between the second feed roller 16 and the third feed roller 18.

[0053] The second heating device 19 heats the yarn Y fed from the third feed roller 18. The second heating device 19 extends vertically, and one is provided in each span.

[0054] The fourth feed roller 20 feeds the filament Y heated by the second heating device 19 to the winding device 21. For example, as shown in FIG. 2, the fourth feed roller 20 can feed one filament Y to the winding device 21. The fourth feed roller 20 can also feed multiple adjacent filaments Y downstream in the direction of filament travel. The feeding speed of the fourth feed roller 20 to the filament Y is slower than that of the third feed roller 18. Therefore, the filament Y is slack between the third feed roller 18 and the fourth feed roller 20.

[0055] In the processing section 3 configured as described above, the yarn Y stretched between the first feed roller 11 and the second feed roller 16 is twisted by the false twisting device 15. The twist formed by the false twisting device 15 propagates to the anti-twist guide 12, but does not propagate upstream of the anti-twist guide 12 in the yarn travel direction. The yarn Y, which is stretched and twisted at the same time, is heated and heat-set by the first heating device 13, and then cooled by the cooling device 14. The yarn Y downstream of the false twisting device 15 in the yarn travel direction is untwisted, but the heat setting above maintains the false twisted wavy state of the yarn Y (i.e., maintains the coiling of the yarn Y).

[0056] The false-twisted yarn Y is slack between the second feed roller 16 and the third feed roller 18 while being wound by the winding device 17, and then guided downstream in the yarn travel direction. Next, the yarn Y is slack between the third feed roller 18 and the fourth feed roller 20 while being heat-treated by the second heating device 19. Finally, the yarn Y fed from the fourth feed roller 20 is wound by the winding device 21.

[0057] (The structure of the winding section 4) The configuration of the winding section 4 will be described with reference to FIG2. The winding section 4 has multiple winding devices 21. Each winding device 21 can wind a yarn Y on a 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 the fulcrum when the yarn Y is traversed. The traversing device 32 can traverse the yarn Y by means of the traversing guide 34. The cradle 33 supports the winding bobbin Bw so that it can rotate freely. A contact roller 35 is arranged near the cradle 33. The contact roller 35 contacts the surface of the wound package Pw and applies contact pressure. In the winding section 4 configured as described above, the yarn Y fed from the fourth feed roller 20 is wound by each winding device 21 onto the winding bobbin Bw to form a wound package Pw.

[0058] (Composition of the first heating device 13) Next, a more specific description of the configuration of the first heating device 13 will be given with reference to Figures 3 to 12. As shown in Figure 3, the first heating device 13 extends along a predetermined extension direction orthogonal to the length direction of the machine body. In this embodiment, the extension direction is parallel to the width direction of the machine body. The extension direction may also be inclined relative to the width direction of the machine body.

[0059] As shown in Figure 6(b), the first heating device 13 has a groove 53 extending along the extension direction. The first heating device 13 heats the yarn Y that travels from one side to the other in the extension direction within the groove 53. The yarn Y, supported by the anti-twist guide 12 and the false twist device 15 (see Figure 1), travels freely within the groove 53. That is, the yarn channel in the groove 53 is formed by the anti-twist guide 12 and the false twist device 15. In this embodiment, the first heating device 13 is capable of heating two yarns Y (ya, yb: see Figure 4).

[0060] As shown in Figures 4 and 5, the first heating device 13 mainly includes a heating element 50, side insulation components 71 and 73, and a central insulation component 72. These components are housed within an insulation box 60. The area within the insulation box 60 other than the area containing the heating element 50, side insulation components 71 and 73, and central insulation component 72 is filled with insulation material 70. The insulation material 70 is made of, for example, asbestos or ceramic fiber.

[0061] As shown in Figure 6(a), the heating unit 50 mainly includes a heat source 51, two heating elements 52 (52a, 52b), and two wire contact elements 54 (54a, 54b). The heat source 51 is, for example, a sheath heater. As shown in Figure 5, the heat source 51 extends along the extension direction. The heating elements 52 are heated by the heat generated by the heat source 51. The wire contact elements 54 are heated by the heating elements 52. The heating elements 52 and the wire contact elements 54 extend along the heat source 51 in the extension direction.

[0062] Heating component 52a and wire contact component 54a are components for heating wire Ya. Heating component 52b and wire contact component 54b are components for heating wire Yb. The components for heating wire Ya and the components for heating wire Yb are arranged on opposite sides of each other in the length direction of the machine body, separated by heat source 51.

[0063] The component used for heating wire Ya will be described. The heating component 52a is made of a metal material with a high specific heat, such as brass. The heating component 52a is configured to contact the heat source 51. The heating component 52a is located on one side of the heat source 51 along its length (left side of the paper in FIG. 6(a)). As shown in FIG. 6, a recess 53 (53a) is formed in the heating component 52a that opens downwards (corresponding to the "orthogonal direction side" of the present invention). That is, the recess 53a opens in a direction opposite to the working space A (see FIG. 1). The recess 53a extends along the extending direction. In this embodiment, the entire recess 53 (53a) is defined by the heating component 52a. It is sufficient that at least a portion of the recess 53 (53a) is defined by the heating component 52a.

[0064] The wire contact component 54a is, for example, a long strip made of SUS steel. The wire contact component 54a can be detachably mounted in the groove 53a formed in the heating component 52a. In this embodiment, one wire contact component 54a is mounted in one groove 53a. However, it is also possible to mount multiple wire contact components 54a in one groove 53a. The wire contact component 54a contacts the heating component 52a. The wire contact component 54a is heated by heat transferred from the heat source 51 via the heating component 52a.

[0065] As shown in Figures 6(a) and (b), the thread contact member 54a has a thread contact surface 55 (55a) that can contact the thread Ya. The thread contact member 54a is disposed in the groove 53a with the thread contact surface 55a facing downward. That is, the space in the interior space of the groove 53a that is lower than the thread contact surface 55a becomes the thread travel space 57 (57a) for the thread Ya to travel.

[0066] As shown in Figure 6(a), the thread contact surface 55a is bent and protrudes upward when viewed from the extension direction. Two limiting surfaces 56 (56a) are formed in the thread contact member 54a to restrict the movement of the thread Ya along the length of the body. The two limiting surfaces 56 (56a) are connected to the two ends of the thread contact surface 55a along the length of the body. The limiting surfaces 56 (56a) are orthogonal to the length of the body. Furthermore, as shown in Figure 6(b), the thread contact surface 55a is bent and protrudes downward in a section orthogonal to the length of the body.

[0067] Furthermore, the components used for heating the thread Yb will be described. The heating element 52b is disposed on the opposite side of the heat source 51 along its length (right side of the paper in FIG. 6(a)). The heating element 52b is in contact with the heat source 51. The heating element 52b has a groove 53b with the same shape as the groove 53a. A thread contact element 54b with the same structure as the thread contact element 54a is detachably mounted within the groove 53b. The thread contact element 54b has a thread contact surface 55b with the same shape as the thread contact surface 55a and a limiting surface 56b. A portion of the internal space of the groove 53b becomes a thread travel space 57b, identical to the thread travel space 57a. Further details are omitted.

[0068] As described above, two grooves 53a and 53b extending along the extension direction are arranged in the length direction of the body (equivalent to the "width direction" of the present invention) and formed on the heating element 52. Two wire contact parts 54a and 54b are respectively installed in the two grooves 53a and 53b.

[0069] The wires Y (Ya, Yb) fed into the first heating device 13 travel within the grooves 53 (53a, 53b) while contacting the wire contact surfaces 55 (55a, 55b). Thus, the wires Y (Ya, Yb) are heated by receiving heat from the heating elements 52 (52a, 52b) through the wire contact surfaces 55 (55a, 55b). By appropriately setting the type of wire Y, the grade (thickness) of wire Y, the travel speed of wire Y, and the heating temperature, the temperature of wire Y can be optimized for processing.

[0070] Here, the mechanism for mounting the wire contact member 54 into the groove 53 will be described. As shown by the double-dotted line in Figure 6(b), the wire contact member 54 extends in a generally straight line before being mounted into the groove 53. In this state, the wire contact surface 55 also extends in a generally straight line along the direction in which the wire contact member 54 extends. Furthermore, the length of the wire contact member 54 in the longitudinal direction is longer than the length of the groove 53 in the longitudinal direction. Both ends of the wire contact member 54 in the longitudinal direction protrude from both ends of the groove 53 in the longitudinal direction.

[0071] As shown in Figures 6(b) and 7, fixing plates 41 are respectively installed at both ends of the extending directions of the two heating components 52a and 52b. The two fixing plates 41 installed at both ends of the extending direction of the heating component 52a fix the wire contact component 54a. The fixing plates 41 installed at both ends of the extending direction of the heating component 52b fix the wire contact component 54b. As shown in Figure 7, each fixing plate 41 can swing about a swing shaft 42 extending along the extending direction. Each fixing plate 41 has an abutting portion 43 that can abut against the lower end face of the portion of the wire contact component 54 protruding from the groove 53. By swinging about the swing shaft 42, the fixing plate 41 can move between an abutting position where the abutting portion 43 abuts against the wire contact component 54 (the position shown in Figure 7(a)) and a retracted position where the abutting portion 43 does not abut against the wire contact component 54 (the position shown in Figure 7(b)).

[0072] Furthermore, as shown in Figure 6(b), a plurality of flexible portions 45 are disposed within the groove 53. The plurality of flexible portions 45 are disposed separately from each other in the extending direction. Each flexible portion 45 is generally cylindrical. Each flexible portion 45 is disposed in an orientation where its axial direction is parallel to the length direction of the body. Each flexible portion 45 is mounted on the heating element 52. The flexible portion 45 located approximately at the center of the extending direction of the groove 53 is located at the bottom. The flexible portions 45 disposed further away from the center of the extending direction of the groove 53 are located at the top.

[0073] When installing the wire contact member 54 into the groove 53, firstly, the wire contact member 54 is lifted from below and pressed against the plurality of flexural portions 45. Then, the fixing plate 41 is moved from the retracted position (the position shown in FIG. 7(b)) to the abutting position (the position shown in FIG. 7(a)), so that the abutting portion 43 of the fixing plate 41 abuts against the lower surfaces of both ends of the wire contact member 54 in the extending direction. At this time, the wire contact member 54 is subjected to a downward force by the plurality of flexural portions 45 and an upward force by the abutting portion 43 of the fixing plate 41. As a result, the wire contact member 54 is installed in the groove 53 in a generally U-shaped state with a downward convex bulge due to the flexing of the wire contact member 54. By flexing the wire contact member 54, the wire contact surface 55 is also bent into a generally U-shaped state with a downward convex bulge due to the flexing of the wire contact member 54. Furthermore, by moving the fixing plate 41 from the contact position (the position shown in Figure 7(a)) to the retracted position (the position shown in Figure 7(b)), the wire contact member 54 can be removed from the groove 53.

[0074] As shown in Figure 8, the insulation box 60 mainly comprises a main body 61, a door 62, side panels 63a and 63b, and a central panel 64. An inlet / outlet 66 for the threads extending into the insulation box 60 is formed therein. The inlet / outlet 66 is located within the insulation box 60 at positions opposite to both ends of the thread travel spaces 57 (57a, 57b) in the extending direction. Furthermore, a slit 67 is formed in the insulation box 60, with one end connected to the inlet / outlet 66 and the other end open.

[0075] The main body 61 is a hollow component with a generally rectangular parallelepiped shape extending along its length. As shown in FIG4, an opening 68 is formed in the lower wall 61a of the main body 61. The opening 68 extends along the entire length of the main body 61 in the extending direction. Furthermore, as shown in FIG5, openings 69 are formed in the side walls 61b at both ends of the main body 61 in the extending direction. The openings 69 are located at the center of the side walls 61b in the body's length direction. The lower side of the openings 69 is open.

[0076] Door 62 is a plate-shaped component extending along the extension direction. Door 62 is mounted on the lower surface of the lower wall 61a of the main body 61. Door 62 is capable of swinging about a shaft 62a extending along the extension direction. Shaft 62a is mounted at the end of door 62 on the other side of the body length direction (right side of the paper in FIG4). As shown by the solid line in FIG4, when door 62 is in the closed position, the opening 68 of the main body 61 is closed by door 62. When door 62 is in the closed position, it swings downward (counterclockwise in FIG4) about shaft 62a, and when it reaches the open position shown by the dashed line in FIG4, the opening 68 of the main body 61 is open. That is, door 62 is capable of moving between the closed position that closes the opening 68 of the main body 61 and the open position that opens the opening 68.

[0077] As shown in Figure 8, one end of the door 62 is fixed to the other end of the spring 65 of the main body 61. The spring 65 applies force to the door 62 in the direction from the open position to the closed position. When the door 62 is in the closed position, the spring 65 applies force upward.

[0078] Three plates, consisting of side plates 63a and 63b and a central plate 64, are respectively mounted on the outer surfaces of the side walls 61b at both ends of the extension direction of the main body 6. The central plate 64 is disposed on both sides of the extension direction of the central heat insulation member 72, which will be described in detail later. The central plate 64 can support the central heat insulation member 72 from both sides of the extension direction. The central plate 64 is equivalent to the "support member" of the present invention.

[0079] Side plate 63a is installed in the side wall 61b of the main body 61 on the side of the opening 69 (left side of the paper in FIG8) in the longitudinal direction of the body. Side plate 63b is installed in the side wall 61b of the main body 61 on the other side of the opening 69 (right side of the paper in FIG8) in the longitudinal direction of the body. Both side plates 63a and 63b are configured to partially block the opening 69. Side plates 63a and 63b are arranged separately in the longitudinal direction of the body. Central plate 64 is installed in the side wall 61b of the main body 61 on the upper side of the opening 69 by bolts 82. Central plate 64 is configured to partially block the opening 69. Central plate 64 is arranged between side plates 63a and 63b in the longitudinal direction of the body. Central plate 64 is arranged separately from side plates 63a and 63b in the longitudinal direction of the body.

[0080] The inlet / outlet 66 (66a, 66b) of the threads Y (Ya, Yb) into the insulation box 60 is formed by the gap between the side plate 63a and the central plate 64, and the gap between the side plate 63b and the central plate 64. An inlet / outlet 66a, formed by the gap between the side plate 63a and the central plate 64, is formed at a location opposite to the end of the thread travel space 57a in the extending direction. An inlet / outlet 66b, formed by the gap between the side plate 63b and the central plate 64, is formed at a location opposite to the end of the thread travel space 57b in the extending direction.

[0081] Slits 67 (67a, 67b) are formed by the gaps between side plate 63a and central plate 64, and between side plate 63b and central plate 64. Both slits 67a and 67b extend in a plane orthogonal to the extension direction. The upper end of slit 67a is connected to inlet / outlet 66a, and the lower end is open. The upper end of slit 67b is connected to inlet / outlet 66b, and the lower end is open.

[0082] Two holes 64a for inserting bolts 82 are formed at the upper end of the central plate 64. The two holes 64a extend along the length of the body. As shown in FIG9, a force-applying member 83 is arranged between the central plate 64, which is mounted on the side wall 61b on one side of the extending direction, and the head 82a of the bolt 82 inserted into the hole 64a of the central plate 64. In this embodiment, the force-applying member 83 is a coil spring. The force-applying member 83 may also be made of rubber. Alternatively, there may be no force-applying member 83. The central plate 64 is pressed against the main body 61 by the force of the force-applying member 83.

[0083] A portion of the blocking opening 69 in the central plate 64 has an opening 64b extending in the vertical direction. A protrusion 78, which is formed in the end plate 79 described later, is disposed within the opening 64b.

[0084] The side heat insulation components 71 and 73, and the central heat insulation component 72, are made of, for example, gypsum board. The side heat insulation components 71, 73, and the central heat insulation component 72 all extend along the extending direction. As shown in FIG4, the side heat insulation components 71, 73, and the central heat insulation component 72 are disposed below the heating section 50. The side heat insulation components 71, 73, and the central heat insulation component 72 are disposed between the heating section 50 and the opening 68 formed in the main body 61 of the insulation box 60. The side heat insulation components 71, 73, and the central heat insulation component 72 are arranged along the length direction of the machine body between the heating section 50 and the lower wall 61a of the main body 61.

[0085] As described below, the central heat insulation component 72 can be removed relative to the first heating device 13. However, the side heat insulation components 71 and 73 cannot be removed relative to the first heating device 13. For example, the side heat insulation components 71 and 73 are fixed to the heating unit 50 and / or the insulation box 60 by screws and / or adhesives. That is, the side heat insulation components 71 and 73 will not move during the removal of the central heat insulation component 72.

[0086] Side heat insulation components 71 and 73 are disposed on both sides of the central heat insulation component 72 along the length of the machine body. Side heat insulation component 71 is positioned on the side of the machine body longer than the central heat insulation component 72. Side heat insulation component 73 is positioned on the other side of the machine body longer than the central heat insulation component 72. As shown in FIG10, the gaps formed between the central heat insulation component 72 and the side heat insulation components 71 and 73 function as wire guide passages 58 (58a, 58b) when the wire Y is placed in the first heating device 13. The gap between the side heat insulation component 71 and the central heat insulation component 72 constitutes a wire guide passage 58a for guiding the wire Ya to the wire contact surface 55a of the wire contact component 54a installed in the groove 53a. The gap between the central heat insulation component 72 and the side heat insulation component 73 forms a wire guide passage 58b for guiding the wire Yb to the wire contact surface 55b of the wire contact component 54b installed in the groove 53b.

[0087] The width (length in the body direction) of the guide wire passage 58 decreases as it moves further away from the groove 53 (lower) when viewed from the extension direction. As described later, the central heat insulation component 72 can move vertically in conjunction with the movement of the gate 62. When the gate 62 is in the closed position, the width W1 (length in the body direction) of the inlet of the wire Y in the guide wire passage 58 (58a, 58b), i.e., the guide wire opening (the end opposite to the side of the groove 53), is shorter than the width W2 (length in the body direction) of the groove 53 (53a, 53b).

[0088] The central heat insulation component 72 is configured across two opposing regions 59a, 59b (the regions enclosed by double-dotted lines in FIG. 10) in the vertical direction of each of the two adjacent recesses 53 (53a, 53b) along the length of the fuselage. A portion of the central heat insulation component 72 is configured in the opposing region 59a opposite to recess 53a, and another portion is configured in the opposing region 59b opposite to recess 53b. The side heat insulation components 71, 73 are entirely configured outside the opposing regions 59a, 59b. That is, the side heat insulation components 71, 73 are not configured in either the opposing regions 59a or 59b.

[0089] The central heat insulation component 72 has a generally trapezoidal shape when viewed from the extension direction, extending from top to bottom (towards the direction away from the groove 53).

[0090] Here, a straight line extending vertically and passing through the center of groove 53a along the length of the body is designated as imaginary line S1 (represented by a dashed line in Figure 10). Similarly, a straight line extending vertically and passing through the center of groove 53b along the length of the body is designated as imaginary line S2 (represented by a dashed line in Figure 10). At this time, as shown in Figure 10, viewed from the extending direction, the upper end of the central heat insulation component 72 (corresponding to the upper part of the trapezoidal-shaped central heat insulation component 72) lies between imaginary lines S1 and S2. Furthermore, the upper end of the central heat insulation component 72 spans two opposing regions 59a and 59b. That is, viewed from the extending direction, the upper end of the central heat insulation component 72 faces the two grooves 53a and 53b respectively in the vertical direction.

[0091] Furthermore, when viewed from the extension direction, the lower end of the central heat insulation component 72 extends to the outside of the two opposing regions 59a and 59b. Furthermore, the length of the lower end of the central heat insulation component 72 along the length direction of the fuselage when viewed from the extension direction is defined as length L1. The length L1 of the lower end of the central heat insulation component 72 is longer than the distance L2 along the length direction between the end of the groove 53a disposed on one side of the fuselage length direction (left side of the paper in FIG10) and the end of the groove 53b disposed on the other side of the fuselage length direction (right side of the paper in FIG10).

[0092] The surfaces 72a and 72b of the central heat insulation component 72 that face the side heat insulation components 71 and 73 (corresponding to the "opposing surfaces" of the present invention) are both inclined relative to a vertical plane orthogonal to the length direction of the body. When viewed from the extended direction, the surface 72a of the central heat insulation component 72 on one side of the body length direction (left side of the paper in FIG10) is inclined relative to the imaginary line S1, with its lower end located on the side of the side heat insulation component 71 and its upper end located on the opposite side of the side heat insulation component 71. Furthermore, when viewed from the extended direction, the surface 72b of the central heat insulation component 72 on the other side of the body length direction (right side of the paper in FIG10) is inclined relative to the imaginary line S2, with its lower end located on the side of the side heat insulation component 73 and its upper end located on the opposite side of the side heat insulation component 73.

[0093] The side heat insulation components 71 and 73, viewed from the extending direction, have a trapezoidal shape that extends toward the direction approaching the groove 53. The side heat insulation component 71, located on one side of the body length direction (left side of the paper in FIG. 10), has its surface 71a inclined relative to a vertical plane orthogonal to the body length direction. The surface 71a of the side heat insulation component 71 is inclined such that its upper end is positioned on the side of the body length direction (right side of the paper in FIG. 10) compared to its lower end. The side heat insulation component 73, located on the other side of the body length direction (right side of the paper in FIG. 10), has its surface 73a inclined relative to a vertical plane orthogonal to the body length direction. The surface 73a of the side heat insulation component 73 is inclined such that its upper end is positioned on the side of the body length direction (left side of the paper in FIG. 10) compared to its lower end.

[0094] Both the surface 71a of the side heat insulation member 71 and the surface 73a of the side heat insulation member 73 are surfaces facing the central heat insulation member 72 along the length of the body. Here, the distance between the ends (upper ends) of these two surfaces 71a and 73a on the side near the groove 53 is defined as distance L3 along the length of the body. Furthermore, the distance between the ends (lower ends) of these two surfaces 71a and 73a on the side opposite to the groove 53 is defined as distance L4 along the length of the body. In this case, distance L3 is shorter than distance L4.

[0095] As shown in Figure 5, end plates 79 are respectively installed at both ends of the central heat insulation component 72 in the extending direction. The end plates 79 are installed on the central heat insulation component 72 with their thickness direction parallel to the extending direction.

[0096] As shown in Figure 11, a protrusion 78 is formed on the surface of the end plate 79 opposite to the side of the central heat insulation member 72 in the extending direction. The protrusion 78 extends in the vertical direction. As shown in Figure 8, the protrusion 78 is disposed within the opening 64b of the central plate 64. The side surface 78a of the protrusion 78 disposed within the opening 64b contacts the edge portion of the opening 64b that extends in the vertical direction. The protrusion 78 is capable of sliding vertically within the opening 64b.

[0097] As shown in Figure 4, when door 62 is in the closed position, the central heat insulation component 72 is pressed upwards by door 62. As door 62 moves from the closed position to the open position (the position shown by the dotted line in Figure 4), the central heat insulation component 72 is no longer pressed upwards. Therefore, the central heat insulation component 72 moves downwards due to its own weight. Then, as door 62 moves from the open position to the closed position, the central heat insulation component 72 is pressed upwards again by door 62. Therefore, the central heat insulation component 72 moves upwards.

[0098] As described above, the central heat insulation component 72 and the gate 62 move vertically relative to the central plate 64 in conjunction with each other. When the central heat insulation component 72 moves vertically, the protrusion 78 slides vertically within the opening 64b formed in the central plate 64. The opening 64b guides the vertical movement of the central heat insulation component 72.

[0099] When the door 62 is in the open position, as shown in FIG9, the lower end of the protrusion 78 of the end plate 79 at both ends of the extension direction of the central heat insulation member 72 abuts against the lower end of the opening 64b formed in the central plate 64. At this time, the central heat insulation member 72 is supported by the central plate 64 from both ends of the extension direction.

[0100] The central plate 64, mounted on the side wall 61b on one side of the extending direction, can be configured to either a supported position (shown by the solid line in Figure 9) supporting the central heat insulation member 72 or a non-supported position (shown by the dashed line in Figure 9) not supporting the central heat insulation member 72. Specifically, the central plate 64 is moved from the supported position to the non-supported position by a force applied to its lower end in the extending direction away from the central heat insulation member 72. At this time, the upper end of the central plate 64 is forceped by the force-applying member 83 in a direction closer to the central heat insulation member 72. Therefore, the central plate 64 in the non-supported position is tilted relative to the surface orthogonal to the extending direction in such a way that the position of the upper end remains almost unchanged relative to the supported position, and is further away from the central heat insulation member 72 as it approaches the lower end. Furthermore, the central plate 64 is subjected to a force by the force-applying member 83 in the direction of movement from the non-supported position to the supported position (the direction closer to the central heat insulation member 72). Therefore, when the force applied to the central plate 64 in the direction away from the central heat insulation member 72 is no longer applied, the central plate 64 returns from the non-supported position to the supported position.

[0101] By moving the central plate 64 from the supported position to the unsupported position, the central heat insulation component 72 can be removed from the first heating device 13. As shown in FIG12(c), by removing the central heat insulation component 72, the two opposing regions 59a and 59b that face each other in the vertical direction with the two recesses 53a and 53b are completely opened. At this time, a trapezoidal space appears between the two side heat insulation components 71 and 73, which expands from top to bottom (towards the direction away from the recesses 53) when viewed from the extension direction.

[0102] (Sequence of removal of wire contact component 54) Next, the sequence of removing the wire contact member 54 from the first heating device 13 will be described with reference to FIG12. First, the operator moves the door 62 of the insulation box 60 from the closed position shown in FIG12(a) to the open position shown in FIG12(b). By placing the door 62 in the open position, the central heat insulation member 72 moves downward due to its own weight without being pressed upward. At this time, as shown in FIG9, the central heat insulation member 72 is supported by the central plate 64.

[0103] Next, the operator moves the central plate 64 from the supported position (shown by the solid line in Figure 9) to the non-supported position (shown by the dashed line in Figure 9), as shown in Figure 12(c), removing the central heat insulation component 72 from the first heating device 13. This opens the two opposing regions 59a and 59b, which are vertically opposite to the two recesses 53a and 53b of the heating section 50. That is, space appears below the two recesses 53a and 53b. Furthermore, as described above, the side heat insulation components 71 and 73 cannot be removed relative to the first heating device 13. Therefore, at this time, the side heat insulation components 71 and 73 will not be removed from the first heating device 13. Then, the operator moves the fixing plate 41 from the contact position (shown by the solid line in Figure 7(a)) to the retracted position (shown by the dashed line in Figure 7(b)), removing the wire contact component 54 downwards.

[0104] (Features of the implementation method) As described above, the first heating device 13 of this embodiment includes a heating element 52, wire contact elements 54a and 54b having wire contact surfaces 55a and 55b capable of contacting the wire Y, and side heat insulation elements 71 and 73 and a central heat insulation element 72 arranged along the length of the machine body. The wire contact elements 54a and 54b are detachably mounted in grooves 53a and 53b, which are defined by the heating element 52, extend along a predetermined extension direction, and open to one side (the lower side) in a vertical direction orthogonal to the extension direction. The gap formed between the central heat insulation element 72 and the side heat insulation elements 71 and 73 constitutes wire guide passages 58a and 58b for guiding the wires Ya and Yb to the two wire contact elements 54a and 54b mounted in the two grooves 53a and 53b, respectively. A central heat insulation component 72 is provided in opposing regions 59a and 59b that are respectively opposite to the grooves 53a and 53b in the vertical direction. The central heat insulation component 72 provided in the opposing regions 59a and 59b can be removed.

[0105] Based on the above configuration, the side heat insulation components 71 and 73 and the central heat insulation component 72 can suppress heat release to the outside through the internal spaces of the grooves 53a and 53b, thereby reducing power consumption. Furthermore, when guiding the threads Ya and Yb to the thread contact components 54a and 54b installed in the grooves 53a and 53b for setting the threads Ya and Yb, it is not necessary to remove the central heat insulation component 72; the threads Ya and Yb can be guided through the wire guide passages 58a and 58b. Therefore, even when setting the threads Ya and Yb, heat release to the outside through the side heat insulation components 71 and 73 and the central heat insulation component 72 can be suppressed, reducing power consumption. Furthermore, by removing the central heat insulation component 72 disposed in the opposing regions 59a and 59b, the opposing regions 59a and 59b, which face the grooves 53a and 53b in the vertical direction, can be released. Therefore, the wire contact components 54a and 54b installed in the grooves 53a and 53b can be removed downwards. Thus, unlike when removing the wire contact components 54a and 54b in the extending direction, there is no need for the cumbersome work of moving the wire guide or rotating the first heating device 13 itself located on the wire channel. Therefore, the removal of the wire contact components 54a and 54b is easy. Furthermore, the possibility of wire channel misalignment due to the removal of the wire contact components 54a and 54b can be reduced.

[0106] Furthermore, in the first heating device 13 of this embodiment, the side heat insulation members 71 and 73 are disposed outside the opposing regions 59a and 59b and cannot be removed. Moreover, the side heat insulation members 71 and 73 do not move with the removal of the heat insulation member 72 disposed in the opposing regions 59a and 59b. According to this configuration, when removing the wire contact member 54 from the groove 53, it is possible to avoid accidentally removing the side heat insulation members 71 and 73 that do not need to be removed.

[0107] Furthermore, in the first heating device 13 of this embodiment, the length of the wire Y inlet, i.e., the wire guide opening, in the body length direction (the width W1 of the wire guide opening in the wire guide passage 58) is shorter than the length of the groove 53 in the body length direction (the width W2 of the groove 53). In this configuration, the width W1 of the wire guide opening in the wire guide passage 58 can be kept relatively narrow. Therefore, heat release from the heat source 51 to the outside can be reliably suppressed.

[0108] Furthermore, in the first heating device 13 of this embodiment, there is only one central heat insulation member 72 disposed in one opposing region 59a (59b). In this configuration, by removing one central heat insulation member 72, the opposing region 59a (59b) opposite to at least one groove 53 can be released, and the wire contact member 54 installed in the groove 53 can be removed. Therefore, the sequence of removing the wire contact member 54 can be simplified.

[0109] Furthermore, the first heating device 13 of this embodiment includes a central heat insulation member 72 disposed in opposing regions 59a, 59b of the grooves 53a, 53b, and side heat insulation members 71, 73 arranged with the central heat insulation member 72 in the longitudinal direction of the body. When viewed from the extending direction, the surface 72a of the central heat insulation member 72 facing the side heat insulation member 71 is inclined relative to an imaginary straight line S1 extending in the vertical direction and passing through the center of the groove 53a in the longitudinal direction of the body, with its lower end located on the side of the side heat insulation member 71 and its upper end located on the opposite side of the side heat insulation member 71. In addition, when viewed from the extending direction, the surface 72b of the central heat insulation member 72 facing the side heat insulation member 73 is inclined relative to an imaginary straight line S2 extending in the vertical direction and passing through the center of the groove 53b in the longitudinal direction of the body, with its lower end located on the side of the side heat insulation member 73 and its upper end located on the opposite side of the side heat insulation member 73.

[0110] For example, consider a case where the surface 72a of the central heat insulation component 72 facing the side heat insulation component 71 is orthogonal to the length direction of the body, and this surface 72a is located on the side of the side heat insulation component 71 relative to the imaginary straight line S1. In this case, when the wire Ya is guided to the wire contact component 54a installed in the groove 53a via the wire guide passage 58a, the wire Ya interferes with the upper end of the central heat insulation component 72. On the other hand, the further away the surface 72a is from the side heat insulation component 71, the smaller the portion in the groove 53a facing the central heat insulation component 72. In the configuration of this embodiment, when the wire Y is guided via the wire guide passage 58, it is possible to make it difficult for the wire Y to interfere with the upper end of the central heat insulation component 72. At the same time, it is possible to sufficiently suppress the heat release from the heat source 51 to the outside in the portion in the groove 53 facing the central heat insulation component 72.

[0111] Furthermore, in the first heating device 13 of this embodiment, a central heat insulation member 72 is disposed across two opposing regions 59a and 59b that are vertically opposite to the two grooves 53a and 53b, respectively. In this configuration, by removing one central heat insulation member 72, the two opposing regions 59a and 59b that are vertically opposite to the two grooves 53a and 53b, respectively, can be released, and the wire contact members 54a and 54b installed in the two grooves 53a and 53b can be removed downwards. Therefore, the sequence of removing the wire contact members 54a and 54b can be further simplified. In addition, by removing one central heat insulation member 72, a relatively wide area spanning the two opposing regions 59a and 59b that are vertically opposite to the two grooves 53a and 53b, respectively, can be released. Therefore, the removal of the wire contact members 54a and 54b can be easily performed in a wider area.

[0112] Furthermore, in the first heating device 13 of this embodiment, the central heat insulation member 72, when viewed from the extending direction, has a trapezoidal shape that extends from top to bottom (towards the direction away from the groove 53). Also, when viewed from the extending direction, the upper end of the central heat insulation member 72 is located between imaginary straight lines S1 and S2. In this configuration, when the wires Ya and Yb are guided to the wire contact members 54a and 54b installed in the grooves 53a and 53b via the wire guide passages 58a and 58b, the wires Ya and Yb are unlikely to interfere with the upper end (the end on the groove 53 side) of the central heat insulation member 72.

[0113] Furthermore, in the first heating device 13 of this embodiment, when viewed from the extending direction, the upper end of the central heat insulation member 72 faces the two grooves 53a and 53b respectively in the vertical direction. In this configuration, when the wires Ya and Yb are guided to the wire contact members 54a and 54b installed in the grooves 53a and 53b via the wire guide passages 58a and 58b, the wires Ya and Yb are unlikely to hook onto the edges of the grooves 53a and 53b. Therefore, the wires Ya and Yb can be smoothly guided from the wire guide passages 58a and 58b to the grooves 53a and 53b.

[0114] Furthermore, in the first heating device 13 of this embodiment, when viewed from the extending direction, the lower end of the central heat insulation member 72 extends to the outside of the two opposing regions 59a, 59b. In this configuration, by removing the central heat insulation member 72 held by the two side heat insulation members 71, 73, the space formed between the two side heat insulation members 71, 73 extends to the outside of at least the two opposing regions 59a, 59b. Therefore, a wider space can be ensured for the operation of removing the wire contact member 54, making the operation easier.

[0115] Furthermore, in the first heating device 13 of this embodiment, the distance L3 between the upper ends of the two surfaces 71a and 73a facing the central heat insulation member 72 in the length direction of the body is shorter than the distance L4 between the lower ends in the length direction of the body. In this configuration, by removing the central heat insulation member 72 held by the two side heat insulation members 71 and 73, a space extending away from the groove 53 is formed between the two side heat insulation members 71 and 73. Therefore, the operation of removing the wire contact member 54 downwards can be easily performed.

[0116] Furthermore, the first heating device 13 of this embodiment also includes a central plate 64 capable of supporting the central heat insulation member 72. The central plate 64 can be configured as a supporting position for supporting the central heat insulation member 72 and a non-supporting position for not supporting the central heat insulation member 72. In this configuration, the central heat insulation member 72 can be easily removed by moving the central plate 64 from the supporting position to the non-supporting position.

[0117] Furthermore, the first heating device 13 of this embodiment also includes a force-applying member 83, which can apply a force to the central plate 64 in the direction of moving from the unsupported position to the supported position. In this configuration, it is possible to prevent the central plate 64 from accidentally moving from the supported position to the unsupported position.

[0118] Furthermore, the false twisting processing machine 1 of this embodiment includes: a yarn supply unit 2 for supplying yarn Y; a processing unit 3 having multiple devices including a first heating device 13 for performing false twisting processing on the yarn Y supplied from the yarn supply unit 2; and a winding device 21 for winding the yarn Y processed by the processing unit 3. The winding device 21 is mounted on a winding table 9, and the multiple devices of the processing unit 3 are mounted on a main body 8 arranged opposite to the winding table 9 and a support frame 10 connecting the upper part of the winding table 9 and the upper part of the main body 8. The groove 53 formed in the first heating device 13 opens in the direction opposite to the working space A.

[0119] In the above configuration, when the wire contact member 54 is removed from the groove 53, other devices do not interfere with the wire contact member 54, making the removal of the wire contact member 54 easy. Furthermore, when removing the wire contact member 54, it is not necessary to move any components or devices located on the wire channel or to rotate the first heating device 13. Therefore, the possibility of wire channel displacement due to the removal of the wire contact member 54 can be reduced.

[0120] Furthermore, the false twisting processing machine 1 of this embodiment includes: a twist-stopping guide 12, disposed upstream of the first heating device 13 in the direction of yarn travel, supporting the yarn Y for free movement; and a false twisting device 15, disposed downstream of the first heating device 13 in the direction of yarn travel, supporting the yarn Y for free movement. The yarn channel in the groove 53 is formed by the twist-stopping guide 12 and the false twisting device 15.

[0121] The embodiments of the present invention have been described above based on the accompanying drawings, but it should be understood that the specific configuration is not limited to these embodiments. The scope of the present invention is not indicated by the description of the above embodiments but by the technical solutions, and therefore includes all modifications within the scope and equivalent meanings of the technical solutions.

[0122] In the above embodiment, the case where one wire contact member 54 can be detachably installed in each groove 53 has been described, but it is not limited to this. Multiple wire contact members 54 can also be detachably installed in one groove 53.

[0123] Furthermore, in the above embodiment, the case where a central heat insulation component 72 is arranged across two opposing regions 59a and 59b has been described, but this is not a limitation. Different heat insulation components may also be arranged in the two opposing regions 59a and 59b. In this case, the heat insulation components arranged in the opposing regions 59a and 59b can be removed.

[0124] Furthermore, in the above embodiment, the case where a single heat insulation component is disposed in one opposing region 59a (59b) has been described, but multiple heat insulation components may also be disposed in one opposing region 59a (59b). In this case, all heat insulation components disposed in one opposing region 59a (59b) can be removed.

[0125] Furthermore, in the above embodiment, the case where a portion of a central heat insulation component 72 is disposed in an opposing region 59a (59b) has been described, but it is not limited to this. Alternatively, an entire central heat insulation component 72 may be disposed in an opposing region 59a (59b).

[0126] Furthermore, in the above embodiment, the case where the side heat insulation components 71 and 73 are both disposed outside the opposing regions 59a and 59b and cannot be removed has been described, but this is not a limitation. When there are multiple heat insulation components disposed outside the opposing regions 59a and 59b, it is sufficient that at least one of them cannot be removed. That is, it is sufficient that only one of the side heat insulation components 71 and 73 cannot be removed. Moreover, it is also possible for both side heat insulation components 71 and 73 to be removable. Furthermore, it is also possible for no heat insulation components to be disposed outside the opposing regions 59a and 59b.

[0127] Furthermore, in the above embodiment, the case where the surface 72a of the central heat insulation member 72 is inclined relative to the imaginary line S1, with its lower end located on the side heat insulation member 71 and its upper end located on the opposite side of the side heat insulation member 71, has been described. Furthermore, the case where the surface 72b of the central heat insulation member 72 is inclined relative to the imaginary line S2, with its lower end located on the side heat insulation member 73 and its upper end located on the opposite side of the side heat insulation member 73, has been described. However, the relationship between surface 72a and the imaginary line S1, and the relationship between surface 72b and the imaginary line S2, are not limited to these. For example, surface 72a as a whole may be located on the side heat insulation member 71 relative to the imaginary line S1. Furthermore, surface 72a as a whole may be located on the opposite side of the side heat insulation member 71 relative to the imaginary line S1.

[0128] Furthermore, in the above embodiment, the case where two grooves 53 are provided in the heating section 50 has been described, but the number of grooves 53 provided in the heating section 50 is not limited to this. The number of grooves 53 may also be one. The number of grooves 53 may also be three or more.

[0129] Here, a variation of the above embodiment will be described with reference to FIG13. The heating section 150 shown in FIG13 is provided with a groove 53. A first heat insulation member 171 is disposed in the opposite region 59 of the groove 53. The first heat insulation member 171 is removable. A second heat insulation member 172 is disposed in the longitudinal direction of the body, aligned with the first heat insulation member 171. The second heat insulation member 172 is located on one side of the first heat insulation member 171 in the longitudinal direction of the body (left side of the paper in FIG13). The second heat insulation member 172 is not removable. The gap between the first heat insulation member 171 and the second heat insulation member 172 forms a wire guide passage 58 for guiding the wire Y to the wire contact member 54 installed in the groove 53.

[0130] As shown by the dashed line in Figure 13, a straight line extending vertically and passing through the center of the groove 53 along the length of the body is designated as an imaginary straight line S3. At this time, viewed from the extension direction, the surface 171a of the first heat insulation member 171 opposite to the second heat insulation member 172 is inclined relative to the imaginary straight line S3. Furthermore, viewed from the extension direction, the lower end of surface 171a relative to the imaginary straight line S3 is located on the side of the second heat insulation member 172, and the upper end is located on the opposite side of the second heat insulation member 172.

[0131] According to the modified example shown in FIG13, similar to the above embodiment, by removing the first heat insulation member 171, the wire contact member 54 installed in the groove 53 can be removed downwards. Furthermore, when the wire Y is guided via the wire guide passage 58, the wire Y is unlikely to interfere with the upper end of the first heat insulation member 171. At the same time, it can be sufficiently ensured that the portion of the groove 53 opposite to the first heat insulation member 171 sufficiently suppresses heat release from the heat source 51 to the outside.

[0132] Furthermore, in the above embodiment, the arrangement of three heat-insulating components (side heat-insulating components 71 and 73 and central heat-insulating component 72) along the length of the fuselage has been described. Furthermore, as a variation of the embodiment, the arrangement of two heat-insulating components (first heat-insulating component 171 and second heat-insulating component 172) along the length of the fuselage has been described. However, the number of heat-insulating components is not limited to this. There may also be two heat-insulating components. Four or more heat-insulating components may also be arranged along the length of the fuselage.

[0133] Furthermore, in the above embodiment, the central heat insulation member 72 has been described as having a trapezoidal shape that extends downward from the top when viewed from the extending direction, but it is not limited to this. For example, the central heat insulation member 72 may also be a rectangular shape that is longer in the vertical direction when viewed from the extending direction. In addition, the central heat insulation member 72 may also be a trapezoidal shape that extends upward from the bottom when viewed from the extending direction.

[0134] Furthermore, in the above embodiment, the case where the upper end of the central heat insulation member 72 is located between the imaginary straight lines S1 and S2 when viewed from the extension direction has been described, but it is not limited to this. The upper end of the central heat insulation member 72 may also extend to the outside of the imaginary straight lines S1 and S2.

[0135] Furthermore, in the above embodiment, the case where the upper end of the central heat insulation member 72 faces each of the two grooves 53a and 53b in the vertical direction when viewed from the extending direction has been described, but this is not a limitation. The upper end of the central heat insulation member 72 may also face only one of the two grooves 53a and 53b in the vertical direction. Alternatively, the upper end of the central heat insulation member 72 may not face either of the two grooves 53a and 53b in the vertical direction.

[0136] Furthermore, in the above embodiment, the case where the lower end of the central heat insulation member 72 extends to the outside of the two opposing regions 59a and 59b when viewed from the extension direction has been described, but it is not limited to this. That is, for example, the end of the lower end of the central heat insulation member 72 on one side of the body length direction (left side of the paper in FIG10) may also be located in the opposing region 59a. The end of the lower end of the central heat insulation member 72 on the other side of the body length direction (right side of the paper in FIG10) may also be located in the opposing region 59b.

[0137] Furthermore, in the above embodiment, the case where the length of the wire Y inlet in the guide wire passage 58 in the body length direction (the width W1 of the guide wire opening in the guide wire passage 58) is shorter than the length of the groove 53 in the body length direction (the width W2 of the groove 53) has been described, but it is not limited to this. Preferably, at least a portion of the guide wire passage 58 has a portion where the length in the body length direction is shorter than the length in the body length direction of the groove 53. Alternatively, the length in the body length direction may be greater than or equal to the length in the body length direction of the groove 53 throughout the entire region of the guide wire passage 58.

[0138] Furthermore, in the above embodiment, the case where the distance L3 in the body length direction between the upper ends of the side heat insulation member 71 surface 71a and the side heat insulation member 73 73a is shorter than the distance L4 in the body length direction between the lower ends has been described, but this is not a limitation. That is, for example, the distance L3 and the distance L4 may be the same. In addition, the distance L3 may be longer than the distance L4.

[0139] Furthermore, in the above embodiment, the case where the central heat insulation component 72 can be removed from the first heating device 13 by moving the central plate 64 from the supported position to the non-supported position has been described, but it is not limited to this. That is, for example, the central heat insulation component 72 may be fixed relative to the first heating device 13 by a detachable fixing component, and the central heat insulation component 72 may be removed from the first heating device 13 by removing the fixing component.

[0140] Furthermore, in the above embodiment, the case where the yarn Y receives heat from the heating member 52 through the yarn contact surface 55 in the heating section 50 has been described, but it is not limited to this. The heating section 50 may also be a non-contact method in which the yarn Y is heated by heated air. In this case, the yarn contact members 54a and 54b, which have the yarn contact surfaces 55a and 55b formed, are replaced by grooves 53a and 53b, respectively, and a plurality of yarn guides (equivalent to the "yarn contact members" of the present invention) that can contact the yarn Y and guide the traveling yarn Y can be detachably installed.

[0141] Furthermore, although the above embodiment describes the case where the yarn channel in the groove 53 of the first heating device 13 is formed by the anti-twist guide 12 and the false twist device 15, it is not limited to this. Unlike the anti-twist guide 12, the component forming the yarn channel in the groove 53 may also be positioned upstream of the first heating device 13 in the yarn travel direction to support the yarn Y for free movement. Similarly, unlike the false twist device 15, the component forming the yarn path in the groove 53 may also be positioned downstream of the first heating device 13 in the yarn travel direction to support the yarn Y for free movement.

[0142] Furthermore, in the above embodiments, the application of the yarn heating device of the present invention to a false twisting processing machine 1 for performing false twisting processing on yarn Y has been described, but it is not limited thereto. The yarn heating device of the present invention is not limited to false twisting processing, and can also be applied to processing machines that perform various processing such as yarn doubling processing on yarns made of synthetic fibers.

[0143] 1: False twist processing machine 2: Wire feeding section 3: Machining Department 8: Main Unit 9: Winding Table 10: Support Frame 12: Twist-stopping guide (first yarn channel forming component) 13: First heating device (thread heating device) 15: False twist device (second yarn channel forming component) 21: Winding device 51: Heat source 52: Heating component 53: Groove 54: Wire contact component 55: Thread contact surface 58: Guidewire access 59: Opposite Region 64: Central plate (support component) 71, 73: Side insulation components (second insulation component) 71a, 73a: Face 72: Central thermal insulation component (first thermal insulation component) 83: Force-applying components 171: First thermal insulation component 172: Second thermal insulation component A: Workspace S1, S2, S3: Imaginary straight lines Y: Thread

Claims

1. A wire heating device comprising one or more grooves for wire travel, opening to one side in an orthogonal direction orthogonal to an extension direction, wherein the extension direction is the direction in which the groove extends, the wire heating device being capable of heating a wire traveling in the groove, characterized in that it comprises: a heating member extending along the extension direction and defining at least a portion of the groove for heating the wire traveling in the groove; a wire contact member detachably mounted in one or more of the grooves, capable of contacting the wire traveling in the groove; and two or more heat insulation members arranged in a width direction orthogonal to both the extension direction and the orthogonal direction, wherein the gap between two adjacent heat insulation members forms a wire guide path for guiding the wire to the wire contact member mounted in the groove, and at least a portion of at least one of the two or more heat insulation members is disposed in opposing regions opposite to the one or more grooves in the orthogonal direction, and all the heat insulation members disposed in the opposing regions are detachable.

2. The wire heating device as claimed in claim 1, wherein, At least one of the two or more heat insulation components is disposed outside the opposite region and cannot be removed, nor does it move with the removal of the heat insulation component disposed in the opposite region.

3. The wire heating device as claimed in claim 1, wherein, The length of the wire inlet, i.e. the wire opening, in the aforementioned guide wire passage is shorter in the aforementioned width direction than the length of the aforementioned groove in the aforementioned width direction.

4. The wire heating device as claimed in claim 2, wherein, The length of the wire inlet, i.e. the wire opening, in the aforementioned guide wire passage is shorter in the aforementioned width direction than the length of the aforementioned groove in the aforementioned width direction.

5. The wire heating device as claimed in claim 1, wherein, The aforementioned heat insulation component configured in one of the aforementioned opposing regions is one.

6. The wire heating device as claimed in claim 2, wherein, The aforementioned heat insulation component configured in one of the aforementioned opposing regions is one.

7. The wire heating device as claimed in claim 3, wherein, The aforementioned heat insulation component configured in one of the aforementioned opposing regions is one.

8. The wire heating device as claimed in claim 4, wherein, The aforementioned heat insulation component configured in one of the aforementioned opposing regions is one.

9. The wire heating device as claimed in claim 5, wherein, The aforementioned heat insulation component includes: a first heat insulation component disposed in the opposing region of at least one of the aforementioned grooves; and a second heat insulation component arranged with the first heat insulation component in the aforementioned width direction. The gap between the first heat insulation component and the second heat insulation component forms the aforementioned guide wire passage. When assuming an imaginary straight line extending along the aforementioned orthogonal direction and passing through the center of the aforementioned groove in the aforementioned width direction, when viewed from the aforementioned extension direction, the opposing surface of the first heat insulation component with respect to the second heat insulation component is inclined relative to the aforementioned imaginary straight line, and relative to the aforementioned imaginary straight line, the end of the first side in the aforementioned orthogonal direction is located on the side of the second heat insulation component, and the end of the other side in the aforementioned orthogonal direction is located on the opposite side of the second heat insulation component.

10. The wire heating device as claimed in claim 6, wherein, The aforementioned heat insulation component includes: a first heat insulation component disposed in the opposing region of at least one of the aforementioned grooves; and a second heat insulation component arranged with the first heat insulation component in the aforementioned width direction. The gap between the first heat insulation component and the second heat insulation component forms the aforementioned guide wire passage. When assuming an imaginary straight line extending along the aforementioned orthogonal direction and passing through the center of the aforementioned groove in the aforementioned width direction, when viewed from the aforementioned extension direction, the opposing surface of the first heat insulation component with respect to the second heat insulation component is inclined relative to the aforementioned imaginary straight line, and relative to the aforementioned imaginary straight line, the end of the first side in the aforementioned orthogonal direction is located on the side of the second heat insulation component, and the end of the other side in the aforementioned orthogonal direction is located on the opposite side of the second heat insulation component.

11. The wire heating device as claimed in claim 7, wherein, The aforementioned heat insulation component includes: a first heat insulation component disposed in the opposing region of at least one of the aforementioned grooves; and a second heat insulation component arranged with the first heat insulation component in the aforementioned width direction. The gap between the first heat insulation component and the second heat insulation component forms the aforementioned guide wire passage. When assuming an imaginary straight line extending along the aforementioned orthogonal direction and passing through the center of the aforementioned groove in the aforementioned width direction, when viewed from the aforementioned extension direction, the opposing surface of the first heat insulation component with respect to the second heat insulation component is inclined relative to the aforementioned imaginary straight line, and relative to the aforementioned imaginary straight line, the end of the first side in the aforementioned orthogonal direction is located on the side of the second heat insulation component, and the end of the other side in the aforementioned orthogonal direction is located on the opposite side of the second heat insulation component.

12. The wire heating device as claimed in claim 8, wherein, The aforementioned heat insulation component includes: a first heat insulation component disposed in the opposing region of at least one of the aforementioned grooves; and a second heat insulation component arranged with the first heat insulation component in the aforementioned width direction. The gap between the first heat insulation component and the second heat insulation component forms the aforementioned guide wire passage. When assuming an imaginary straight line extending along the aforementioned orthogonal direction and passing through the center of the aforementioned groove in the aforementioned width direction, when viewed from the aforementioned extension direction, the opposing surface of the first heat insulation component with respect to the second heat insulation component is inclined relative to the aforementioned imaginary straight line, and relative to the aforementioned imaginary straight line, the end of the first side in the aforementioned orthogonal direction is located on the side of the second heat insulation component, and the end of the other side in the aforementioned orthogonal direction is located on the opposite side of the second heat insulation component.

13. The wire heating device as claimed in claim 5, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

14. The wire heating device as claimed in claim 6, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

15. The wire heating device as claimed in claim 7, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

16. The wire heating device as claimed in claim 8, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

17. The wire heating device as claimed in claim 9, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

18. The wire heating device as claimed in claim 10, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

19. The wire heating device as claimed in claim 11, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

20. The wire heating device as claimed in claim 12, wherein, The aforementioned grooves are arranged in a plurality of manner in the aforementioned width direction, and a heat insulation member is arranged across two opposing regions that are respectively opposite to each other in the aforementioned orthogonal direction between two adjacent grooves in the aforementioned width direction.

21. The wire heating apparatus as claimed in any one of claims 13 to 20, wherein, The aforementioned heat insulation component includes: a central heat insulation component spanning two opposing regions disposed in the orthogonal direction opposite to the two adjacent grooves in the aforementioned width direction; and two side heat insulation components disposed on both sides of the central heat insulation component in the aforementioned width direction. The gap between the central heat insulation component and the two side heat insulation components forms the wire guide path for guiding the wire to the wire contact component installed in the two grooves, respectively. The central heat insulation component has a trapezoidal shape extending from the other side of the orthogonal direction toward the other side when viewed from the aforementioned extension direction. When viewed from the aforementioned extension direction, the end of the central heat insulation component on the other side of the orthogonal direction is located between two imaginary straight lines extending along the aforementioned orthogonal direction and passing through the centers of the two grooves in the aforementioned width direction.

22. The wire heating device as claimed in claim 21, wherein, When viewed from the aforementioned extension direction, the end of the other side of the aforementioned orthogonal direction of the aforementioned central heat insulation component faces the aforementioned two grooves respectively in the aforementioned orthogonal direction.

23. The wire heating device as claimed in claim 21, wherein, When viewed from the aforementioned extension direction, the end of the aforementioned side of the aforementioned orthogonal direction of the aforementioned central insulation component extends to the outside of the aforementioned two opposing regions.

24. The wire heating device as claimed in claim 22, wherein, When viewed from the aforementioned extension direction, the end of the aforementioned side of the aforementioned orthogonal direction of the aforementioned central insulation component extends to the outside of the aforementioned two opposing regions.

25. The wire heating device as claimed in claim 21, wherein, The distance in the width direction between the ends of the two side insulation members that are opposite to the central insulation member in the width direction on the other side of the two faces is shorter than the distance in the width direction between the ends of the two sides of the orthogonal direction.

26. The wire heating device as claimed in claim 22, wherein, The distance in the width direction between the ends of the two side insulation members that are opposite to the central insulation member in the width direction on the other side of the two faces is shorter than the distance in the width direction between the ends of the two sides of the orthogonal direction.

27. The wire heating device as claimed in claim 23, wherein, The distance in the width direction between the ends of the two side insulation members that are opposite to the central insulation member in the width direction on the other side of the two faces is shorter than the distance in the width direction between the ends of the two sides of the orthogonal direction.

28. The wire heating device as claimed in claim 24, wherein, The distance in the width direction between the ends of the two side insulation members that are opposite to the central insulation member in the width direction on the other side of the two faces is shorter than the distance in the width direction between the ends of the two sides of the orthogonal direction.

29. The wire heating apparatus as claimed in any one of claims 1 to 20, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

30. The wire heating device as claimed in claim 21, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

31. The wire heating device as claimed in claim 22, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

32. The wire heating device as claimed in claim 23, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

33. The wire heating device as claimed in claim 24, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

34. The wire heating device as claimed in claim 25, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

35. The wire heating device as claimed in claim 26, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

36. The wire heating device as claimed in claim 27, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

37. The wire heating device as claimed in claim 28, wherein, The aforementioned wire heating device further includes a support member capable of supporting the aforementioned heat insulation component. The support member can be configured as a support position that supports the aforementioned heat insulation component and a non-support position that does not support the aforementioned heat insulation component.

38. The wire heating device as claimed in claim 29, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

39. The wire heating device as claimed in claim 30, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

40. The wire heating device as claimed in claim 31, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

41. The wire heating device as claimed in claim 32, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

42. The wire heating device as claimed in claim 33, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

43. The wire heating device as claimed in claim 34, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

44. The wire heating device as claimed in claim 35, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

45. The wire heating device as claimed in claim 36, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

46. ​​The wire heating device as claimed in claim 37, wherein, The aforementioned wire heating device also includes a force-applying component, which is capable of applying a force to the aforementioned support component in a direction of movement from the aforementioned non-support position to the aforementioned support position.

47. A false twisting processing machine, characterized in that it comprises a yarn heating device as described in any one of claims 1 to 46.

48. The false twisting processing machine as described in claim 47, wherein, The device comprises: a yarn supply unit for supplying yarn; a processing unit having multiple devices including the aforementioned yarn heating device for performing false twisting processing on the yarn supplied from the yarn supply unit; and a winding device for winding the yarn processed by the processing unit. The winding device is mounted on a winding table. The multiple devices of the processing unit are mounted on a main body arranged opposite to the winding table in a working space and on a support frame connecting the upper part of the winding table to the upper part of the main body. The yarn heating device heats the yarn traveling in a groove that extends along an extension direction and opens in a direction orthogonal to the extension direction and opposite to the working space.

49. The false twisting processing machine as described in claim 47, wherein, It includes: a first thread channel forming member, which is disposed upstream of the aforementioned thread heating device in the thread traveling direction, and supports the thread for free movement; The second thread channel forming member is disposed downstream of the aforementioned thread heating device in the direction of thread travel, supporting the thread for free movement. The thread channel in the aforementioned groove is formed by the aforementioned first thread channel forming member and the aforementioned second thread channel forming member.

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