Heating device and yarn processing machine

Abstract

To suppress temperature drop of a yarn running space and the like due to disturbance and immediately raise temperature of the yarn running space and the like even if the temperature of the yarn running space and the like drops.SOLUTION: A first heater 13 (heater) for heating a yarn Y running in a yarn running space S has a heat source 51 and a heating portion 52. The heating portion 52 is configured so as to be heated by the heat source 51 and form the yarn running space S extending at least in a predetermined first direction. The heating portion 52 has a first heating member 53 formed of a first material and a second heating member 54 formed of a second material. A cross section orthogonal to the first direction of the second heating member 54 is disposed at least between the heat source 51 and the yarn running space S. Volume specific heat of the second material is lower than volume specific heat of the first material.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a heating device for heating yarn and a yarn processing machine equipped with the heating device. [Background technology]

[0002] Patent Document 1 discloses a heat treatment device (heating device) that heats yarn during yarn processing such as false twisting. The heating device includes a sheathed heater (heat source) and a heater main body (heating unit). The heating unit is configured to be heated by the heat source and to form a predetermined yarn traveling space through which the yarn travels. More specifically, the heating unit has a heating plate made of a copper alloy. Copper alloys generally have a relatively large heat capacity. Therefore, it is possible to some extent to prevent the heating unit from being cooled by external disturbances (for example, outside air entering the yarn traveling space for some reason). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-146640 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, to reliably suppress temperature fluctuations in the heating unit due to disturbances, it is sufficient to make the heat capacity of the heating unit very large. However, doing so may result in a very large heating device. Therefore, by considering the balance between suppressing device size and suppressing temperature fluctuations due to disturbances, the heating unit is generally designed to have a certain level of heat capacity. However, in such a configuration, once the temperature of the heating unit drops due to a disturbance, the temperature of the yarn traveling space and / or components forming the yarn traveling space (hereinafter referred to as the yarn traveling space, etc.) also drops. In this case, it may take a long time for the temperatures of the heating unit and the yarn traveling space, etc. to return to the set temperature.

[0005] An object of the present invention is to suppress a temperature drop in a yarn traveling space or the like due to external disturbances, and to quickly raise the temperature of the yarn traveling space or the like even if the temperature of the yarn traveling space or the like drops. [Means for solving the problem]

[0006] A heating device of a first invention is a heating device for heating a yarn traveling in a yarn traveling space, comprising: a heat source; and a heating unit configured to be heated by the heat source and configured to form a yarn traveling space extending at least in a predetermined first direction, wherein the heating unit includes: a first heating element made of a first material and arranged so as not to come into contact with the yarn traveling in the yarn traveling space; and a second heating element made of a second material having a lower volumetric specific heat than the first material and arranged so as not to come into contact with the yarn traveling in the yarn traveling space, in a cross section perpendicular to the first direction.

[0007] By using a material with a relatively high volumetric specific heat as the first material constituting the first heating element, it is possible to suppress to some extent the temperature drop of the heating section due to disturbances. Furthermore, in the present invention, the second heating element made of a second material with a low volumetric specific heat can be heated more quickly than the first heating element. This allows the yarn traveling space, etc. to be heated quickly via the second heating element disposed between the heat source and the yarn traveling space (a detailed definition of which will be described later). Therefore, such rapid heating can suppress the temperature drop of the yarn traveling space, etc. due to disturbances. Furthermore, even if the temperature of the yarn traveling space, etc. drops due to disturbances, the temperature of the yarn traveling space, etc. can be raised quickly.

[0008] A heating device of a second invention is the heating device of the first invention, characterized in that the second heating member is in contact with the heat source.

[0009] In the present invention, the heat generated by the heat source can be quickly transferred to the second heating member, thereby effectively raising the temperature of the second heating member.

[0010] A heating device according to a third aspect of the present invention is the heating device according to the first or second aspect of the present invention, characterized in that the second heating member is in contact with the first heating member.

[0011] For example, a heat source for heating the first heating element and a heat source for heating the second heating element may be provided separately, and the second heating element may be positioned away from the first heating element. However, in this case, the manufacturing cost of the heating device increases due to the increased component cost of the heat source. In the present invention, the second heating element is in contact with the first heating element. Therefore, the first heating element can be quickly heated via the second heating element while suppressing an increase in manufacturing cost.

[0012] The heating device of the fourth invention is characterized in that, in any one of the first to third inventions, the ratio of the heat capacity of the second heating member to the heat capacity of the first heating member is 20% or more and 40% or less.

[0013] If the heat capacity of the second heating element is too small, it may take a long time for the temperature of the yarn traveling space, etc. to rise again when the temperature of the heating element drops due to an external disturbance. However, if the heat capacity of the second heating element is too large, the temperature of the heating element may easily fluctuate even due to a small external disturbance, which may in turn cause the temperature of the yarn traveling space, etc. to become unstable. In the present invention, the heat capacity of the second heating element is neither too large nor too small compared to the heat capacity of the first heating element. Therefore, the heating element can be made somewhat resistant to external disturbances, and the temperature of the yarn traveling space, etc. can be quickly raised.

[0014] A heating device according to a fifth aspect of the present invention is characterized in that, in any one of the first to fourth aspects of the present invention, the second material includes a fibrous material.

[0015] In the present invention, by orienting the fiber material in a specific direction, the thermal conductivity of the second material can be made anisotropic, allowing heat to be transferred very quickly, particularly in the desired direction.

[0016] A heating device according to a sixth aspect of the present invention is the heating device according to the fifth aspect of the present invention, characterized in that the fiber material is carbon fiber.

[0017] Carbon fiber is a lightweight material with high thermal conductivity. Therefore, it can conduct heat very quickly in the desired direction. It also reduces the weight of the heating device.

[0018] A heating device according to a seventh aspect of the present invention is the heating device according to the sixth aspect of the present invention, characterized in that the carbon fibers are pitch-based fibers.

[0019] Generally, pitch-based carbon fibers and PAN-based carbon fibers are known as carbon fibers. Generally, pitch-based carbon fibers have higher thermal conductivity than PAN-based carbon fibers. In the present invention, by using pitch-based carbon fibers as the carbon fibers, the thermal conductivity can be further increased.

[0020] The heating device of an eighth invention is the heating device of the sixth or seventh invention, characterized in that the second material is a composite material of the carbon fiber and graphite.

[0021] A composite material of carbon fiber and graphite has very high thermal conductivity, so by using a composite material of carbon fiber and graphite as the second material, the thermal conductivity can be further increased.

[0022] A heating device according to a ninth aspect of the present invention is the heating device according to the sixth or seventh aspect of the present invention, characterized in that the second material is a composite material of the carbon fiber and resin.

[0023] A composite material of carbon fiber and resin is less expensive than a composite material of carbon fiber and graphite, so by using a composite material of carbon fiber and resin as the second material, it is possible to prevent an increase in the manufacturing cost of the heating device.

[0024] The heating device of the 10th invention is characterized in that, in any of the 1st to 9th inventions, the second heating member is arranged to extend at least in the first direction, and the second material has a higher thermal conductivity in at least the first direction than the first material.

[0025] In the present invention, heat can be quickly transferred in the first direction via the second heating member, thereby suppressing temperature variations in the yarn traveling space, etc. in the first direction.

[0026] The heating device of an eleventh invention is any of the first to tenth inventions, characterized in that, in a cross section perpendicular to the first direction, when a direction in which a predetermined imaginary straight line extending from the heat source toward the yarn traveling space is defined as a second direction, the second material has a higher thermal conductivity in at least the second direction than the first material.

[0027] In the present invention, heat can be quickly transferred from the heat source to the yarn traveling space etc. via the second heating member, and therefore the temperature of the yarn traveling space etc. can be quickly increased.

[0028] The heating device of the 12th invention is characterized in that, in any one of the first to 11th inventions, the heating section has a contact member that extends at least in the first direction and is used to contact the yarn.

[0029] In a configuration in which a contact member is provided as in the present invention, the temperature of the contact member can be raised effectively by quickly raising the temperature of the second heating member.

[0030] A heating device according to a thirteenth aspect of the present invention is the heating device according to the twelfth aspect of the present invention, characterized in that the contact member is in contact with the second heating member.

[0031] In the present invention, the temperature of the contact member can be effectively increased by heat conduction between the contact member and the second heating member, which is rapidly heated.

[0032] A heating device according to a fourteenth aspect of the present invention is the heating device according to the twelfth or thirteenth aspect of the present invention, characterized in that the contact member is configured to be detachable from the heating unit.

[0033] Generally, when processing a yarn while it is running, an oil is applied to the yarn to ensure smooth running of the yarn. If such oil and / or scum accumulates on the contact member, it may hinder the normal running of the yarn, so the contact member needs to be cleaned periodically. In the present invention, the contact member can be temporarily removed from the heating section, which significantly improves the efficiency of maintenance such as cleaning of the contact member (removal of oil, etc.).

[0034] The yarn processing machine of the 15th invention is characterized in that it comprises a heating device of any one of the first to fourteenth inventions, a yarn deformation device that deforms the yarn, and a yarn feeding device for running the yarn that is configured to feed the yarn to the heating device and the yarn deformation device, and is configured to process the yarn while running it.

[0035] The present invention can suppress fluctuations in the heating temperature required for processing yarn due to external disturbances, thereby suppressing fluctuations in the quality of yarn processed by the yarn processing machine. [Brief explanation of the drawings]

[0036] [Figure 1] 1 is a side view of a false twisting machine for carrying out the textured yarn manufacturing method of the present embodiment. FIG. [Figure 2] FIG. 1 is a schematic diagram showing a false twisting machine laid out along the yarn path. [Figure 3] 1(a) to 1(d) are explanatory views showing a first heating device. [Figure 4] This is an enlarged view of FIG. 3(b). [Figure 5] 1 is a table showing physical property values ​​of a first heating member and a second heating member. [Figure 6] 10 is a table showing physical property values ​​of a first heating member and a second heating member according to a modified example. [Figure 7]FIG. 10 is a cross-sectional view of a first heating device according to another modified example, taken perpendicular to the first direction. DETAILED DESCRIPTION OF THE INVENTION

[0037] Next, an embodiment of the present invention will be described. The direction perpendicular to the plane of the paper in Fig. 1 is the machine base longitudinal direction, and the left-right direction of the paper is the machine base width direction. The direction perpendicular to both the machine base longitudinal direction and the machine base width direction is the up-down direction (vertical direction) in which gravity acts. The machine base longitudinal direction and the machine base width direction are directions approximately parallel to the horizontal direction.

[0038] (Overall configuration of false twisting machine) First, the overall configuration of a false twisting machine 1 (yarn processing machine of the present invention) for carrying out the process for producing textured yarn of this embodiment will be described with reference to Figures 1 and 2. Figure 1 is a side view of the false twisting machine 1. Figure 2 is a schematic diagram of the false twisting machine 1 unfolded along the path (yarn path) of the yarn Y.

[0039] The false twisting machine 1 is configured to be able to false twist a yarn Y made of synthetic fiber. The yarn Y is, for example, a multifilament yarn made of multiple filaments. Alternatively, the yarn Y may be made of a single filament. The false twisting machine 1 includes a yarn supplying unit 2, a processing unit 3, and a winding unit 4. The yarn supplying unit 2 is configured to be able to supply the yarn Y. The processing unit 3 is configured to draw the yarn Y from the yarn supplying unit 2 and false twist the yarn. The winding unit 4 is configured to wind the yarn Y processed by the processing unit 3 onto a winding bobbin Bw. A plurality of components of the yarn supplying unit 2, processing unit 3, and winding unit 4 are arranged in the longitudinal direction of the machine (see FIG. 2). The longitudinal direction of the machine is a direction perpendicular to the running plane of the yarn Y (the plane of the paper in FIG. 1) formed by the yarn path from the yarn supplying unit 2 through the processing unit 3 to the winding unit 4.

[0040] The yarn supplying section 2 has a creel stand 7 that holds multiple yarn supply packages Ps and supplies multiple yarns Y to the processing section 3. The processing section 3 is configured to pull out multiple yarns Y from the yarn supplying section 2 and process them. The processing section 3 is configured to include, in order from the upstream side in the yarn running direction, a first feed roller 11 (yarn feeding device of the present invention), a twist stop guide 12, a first heating device 13 (heating device of the present invention), a cooling device 14, a false twist device 15 (yarn deformation imparting device of the present invention), a second feed roller 16, an intertwining 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 yarn Y that has been false twisted in the processing section 3 onto a winding bobbin Bw to form a winding package Pw.

[0041] The false twisting machine 1 has a main frame 8 and a winding table 9 that are spaced apart in the width direction of the machine. The main frame 8 and the winding table 9 are arranged so that they extend over approximately the same length in the longitudinal direction of the machine. The main frame 8 and the winding table 9 are arranged so that they face each other in the width direction of the machine. The false twisting machine 1 has a unit called a span, which includes a pair of the main frame 8 and the winding table 9. In one span, various devices are arranged so that multiple yarns Y running side by side in the longitudinal direction of the machine can be false twisted simultaneously. In the false twisting machine 1, these spans are arranged symmetrically on the left and right sides of the drawing, with the center line C of the main frame 8 in the width direction of the machine as the axis of symmetry (the main frame 8 is common to both the left and right spans). In addition, multiple spans are arranged in the longitudinal direction of the machine.

[0042] (Configuration of processing part) The configuration of the processing unit 3 will be described with reference to Figures 1 and 2. The first feed roller 11 is configured to unwind the yarn Y from the yarn supply package Ps attached to the yarn supplying unit 2 and feed it to the first heating device 13. For example, as shown in Figure 2, the first feed roller 11 is configured to feed one yarn Y to the first heating device 13. Alternatively, the first feed roller 11 may be configured to feed each of adjacent yarns Y downstream in the yarn traveling direction. The twist stop guide 12 is configured to prevent the twist imparted to the yarn Y by the false twist device 15 from propagating upstream of the twist stop guide 12 in the yarn traveling direction.

[0043] The first heating device 13 is configured to heat the yarn Y fed from the first feed roller 11. The first heating device 13 is configured to be able to heat two strands of yarn Y, for example, as shown in Fig. 2. The first heating device 13 will be described in more detail below.

[0044] The cooling device 14 is configured to cool the yarn Y heated by the first heating device 13. For example, as shown in FIG. 2, the cooling device 14 is configured to cool one yarn Y. Alternatively, the cooling device 14 may be configured to simultaneously cool multiple yarns Y. The false twisting device 15 is disposed downstream of the cooling device 14 in the yarn running direction and is configured to impart a twist to the yarn Y. The false twisting device 15 is, for example, a so-called disk friction type false twisting device, but is not limited to this. The second feed roller 16 is configured to feed the yarn Y processed by the false twisting device 15 to the entangling device 17. The conveying speed of the yarn Y by the second feed roller 16 is faster than the conveying speed of the yarn Y by the first feed roller 11. As a result, the yarn Y is stretch-false-twisted between the first feed roller 11 and the second feed roller 16.

[0045] The interlacing device 17 is configured to interlace the yarn Y. The interlacing device 17 has, for example, a known interlace nozzle that interlaces the yarn Y by airflow.

[0046] The third feed roller 18 is configured to feed the yarn Y traveling downstream of the intertwining device 17 in the yarn traveling direction to the second heating device 19. For example, as shown in FIG. 2 , the third feed roller 18 is configured to feed a single yarn Y to the second heating device 19. Alternatively, the third feed roller 18 may be configured to feed adjacent yarns Y downstream in the yarn traveling direction. The speed at which the third feed roller 18 conveys the yarn Y is slower than the speed at which the second feed roller 16 conveys the yarn Y. Therefore, the yarn Y is relaxed between the second feed roller 16 and the third feed roller 18. The second heating device 19 is configured to heat the yarn Y fed from the third feed roller 18. The second heating device 19 extends vertically, and one second heating device 19 is provided for each span. The fourth feed roller 20 is configured to feed the yarn Y heated by the second heating device 19 to the winding device 21. 2, the fourth feed roller 20 is configured to feed one yarn Y to the winding device 21. Alternatively, the fourth feed roller 20 may be configured to feed adjacent yarns Y downstream in the yarn running direction. The speed at which the fourth feed roller 20 conveys the yarn Y is slower than the speed at which the third feed roller 18 conveys the yarn Y. Therefore, the yarn Y is relaxed between the third feed roller 18 and the fourth feed roller 20.

[0047] In the processing unit 3 configured as described above, the yarn Y drawn between the first feed roller 11 and the second feed roller 16 is twisted by the false twist device 15. The twist formed by the false twist device 15 propagates up to the twist stop guide 12, but does not propagate upstream of the twist stop guide 12 in the yarn traveling direction. The yarn Y, to which twist has been imparted while being drawn, is heated and heat-set by the first heating device 13, and then cooled by the cooling device 14. The yarn Y is untwisted downstream of the false twist device 15 in the yarn traveling direction, but the wavy false-twisted state of the yarn Y is maintained by the heat-setting (i.e., the crimp of the yarn Y is maintained).

[0048] The false-twisted yarn Y is entangled by an entangling device 17 while being relaxed between the second feed roller 16 and the third feed roller 18, or is guided directly without being doubled to the downstream side in the yarn running direction. Further, the yarn Y is heat-treated by a second heating device 19 while being relaxed between the third feed roller 18 and the fourth feed roller 20. Finally, the yarn Y sent from the fourth feed roller 20 is wound by a winding device 21.

[0049] (Configuration of winding section) The configuration of the winding unit 4 will be described with reference to FIG. 2. The winding unit 4 has a plurality of winding devices 21. Each winding device 21 is configured to be able to wind the yarn Y onto one winding bobbin Bw. The winding device 21 has a fulcrum guide 41, a traverse device 42, and a cradle 43. The fulcrum guide 41 is a guide that serves as a fulcrum when the yarn Y is traversed. The traverse device 42 is configured to be able to traverse the yarn Y using the traverse guide 45. The cradle 43 is configured to rotatably support the winding bobbin Bw. A contact roller 46 is disposed near the cradle 43. The contact roller 46 comes into contact with the surface of the winding package Pw and applies contact pressure. In the winding unit 4 configured as described above, the yarn Y fed from the fourth feed roller 20 is wound onto the winding bobbin Bw by each winding device 21 to form the winding package Pw.

[0050] (1st heating device) Next, a more specific configuration of the first heating device 13 will be described with reference to FIGS. 3(a) to 3(d). FIG. 3(a) is a view of the first heating device 13 as seen from the machine base longitudinal direction, and is a view illustrating the first heating device 13 so that the direction in which the first heating device 13 extends (the first direction described below) faces the left-right direction of the page. FIG. 3(b) is a cross-sectional view taken along line Ab-Ab in FIG. 3(a). FIG. 3(c) is a cross-sectional view taken along line Ac-Ac in FIG. 3(b). FIG. 3(d) is a cross-sectional view taken along line Ad-Ad in FIG. 3(b). The direction perpendicular to both the machine base longitudinal direction and the first direction is defined as the height direction (see FIG. 3(b)). In FIGS. 3(a) to 3(d), the upper side of the page is defined as one side in the height direction, and the lower side of the page is defined as the other side in the height direction.

[0051] The first heating device 13 is configured to heat the running yarn Y. In this embodiment, the first heating device 13 is configured to be able to heat two yarns Y (yarns Ya and Yb). The first heating device 13 extends in a predetermined first direction perpendicular to the longitudinal direction of the machine (see FIG. 3(a) and the like). The first heating device 13 has a heat source 51 and a heating section 52. The first heating device 13 simultaneously heats the running yarns Ya and Yb by the heating section 52 heated by the heat source 51.

[0052] The heat source 51 includes, for example, a known sheathed heater (electric heater). The sheathed heater is a device having a heating wire (e.g., a coil) and a pipe surrounding the heating wire. The sheathed heater generates Joule heat when an electric current flows through the heating wire. The heat source 51 extends in a first direction (see FIG. 3(c)). For example, the heat source 51 has a substantially circular shape in a cross section perpendicular to the first direction (see FIG. 3(b)), but is not limited thereto. The heat source 51 is electrically connected to a control device 100 (see FIG. 3(c)) that controls the heating temperature (temperature of the heating unit 52). The control device 100 is configured to be able to set the heating temperature of the first heating device 13. The control device 100 controls the first heating device 13 based on the set heating temperature value. The control device 100 may control the first heating device 13, for example, in consideration of the set heating temperature and the detection result of a temperature sensor (not shown) that detects the actual temperature of the heating section 52.

[0053] The heating section 52 is configured to be heated by heat generated by the heat source 51. The heating section 52 extends in a first direction along the heat source 51 (see FIG. 3(c)). The heating section 52 is formed with a yarn traveling space S (see FIGS. 3(b) and 3(d)) extending at least in the first direction, through which the yarn Y travels. In the present embodiment, as shown in FIG. 3(b), two yarn traveling spaces S (yarn traveling spaces Sa, Sb) through which two yarns Ya, Yb travel, respectively, are formed. The heating section 52, heated by the heat source 51, heats the yarn Ya traveling in the yarn traveling space Sa and the yarn Yb traveling in the yarn traveling space Sb. The heating section 52 will be described in more detail below.

[0054] Generally, to reliably suppress temperature fluctuations in the heating unit 52 due to disturbances (for example, when outside air is suddenly blown onto the heating unit 52), it is sufficient to significantly increase the heat capacity of the components that make up the heating unit 52. However, doing so may result in a significantly increased size of the first heating device 13. Therefore, in consideration of the balance between suppressing an increase in the size of the first heating device 13 and suppressing temperature fluctuations due to disturbances, the heating unit 52 is generally designed to have a certain level of heat capacity. However, with this configuration, once the temperature of the heating unit 52 drops due to a disturbance, the temperature of the yarn traveling space S and / or the components that form the yarn traveling space S (hereinafter, the yarn traveling space S, etc.) also drops. In this case, it may take a long time for the temperatures of the heating unit 52 and the yarn traveling space S, etc. to return to the set temperature. Therefore, in order to suppress temperature decreases in the yarn traveling space S, etc. due to disturbances and to quickly raise the temperature of the yarn traveling space S, etc. even if the temperature of the yarn traveling space S, etc. drops, the first heating device 13 further has the following configuration.

[0055] (Detailed configuration of the first heating device) The detailed configuration of the first heating device 13 will be described with reference to Figures 3(a) to 5. Figure 4 is an enlarged view of Figure 3(b). Figure 5 is a table showing the physical property values ​​of the material constituting the first heating member 53 and the material constituting the second heating member 54, which will be described later. In Figure 4, the left side of the paper is one side in the longitudinal direction of the machine base, and the right side of the paper is the other side in the longitudinal direction of the machine base.

[0056] As shown in FIGS. 3(b) and 4, the heating unit 52 includes, for example, two first heating elements 53, two second heating elements 54, and two contact blocks 55 (contact elements of the present invention). The two first heating elements 53 include first heating elements 53a and 53b. The two second heating elements 54 include second heating elements 54a and 54b. The two contact blocks 55 include contact blocks 55a and 55b. The first heating element 53a, the second heating element 54a, and the contact block 55a are elements for heating the yarn Ya. The first heating element 53b, the second heating element 54b, and the contact block 55b are elements for heating the yarn Yb. The element for heating the yarn Ya and the element for heating the yarn Yb are disposed, for example, on opposite sides of the heat source 51 in the machine longitudinal direction.

[0057] The member for heating the yarn Ya will be described. The first heating member 53a is a long member extending in a first direction along the heat source 51. The material (first material) constituting the first heating member 53 is a metal material with a high volumetric specific heat, such as brass. The volumetric specific heat is a value obtained by multiplying the specific heat (heat capacity per unit mass) of a material by the density (mass per unit volume) of the material. As shown in FIG. 4, the first heating member 53a has, for example, a substantially L-shaped cross section perpendicular to the first direction. However, the shape of the first heating member 53a is not limited to this. The first heating member 53a is disposed on one side of the heat source 51 in the machine frame longitudinal direction. The first heating member 53a is disposed, for example, spaced apart from the heat source 51.

[0058] Like the first heating member 53a, the second heating member 54a is an elongated member extending in the first direction along the heat source 51. The second heating member 54a is made of a second material (details of which will be described later) having a lower volumetric specific heat than the first material. As shown in FIG. 4, the second heating member 54a has, for example, a generally rectangular cross section perpendicular to the first direction. The second heating member 54a is disposed on one side of the heat source 51 in the machine base longitudinal direction. The second heating member 54a is disposed so as to be in contact with the heat source 51. The second heating member 54a is also disposed so as to be in contact with the first heating member 53a. In the cross section perpendicular to the first direction, the second heating member 54a, together with the second heating member 54b, is disposed so as to surround the heat source 51. The second heating member 54a is disposed, for example, between the heat source 51 and the first heating member 53a in the machine base longitudinal direction. The arrangement of the second heating member 54a will be described in more detail below.

[0059] The second heating member 54a, together with the first heating member 53a, forms, for example, an inverted U-shaped slit 56 (slit 56a). The slit 56a is open on the other side in the height direction. The contact block 55a is accommodated within the slit 56a. The slit 56a functions as an accommodation space for accommodating the contact block 55a, and also as a yarn traveling space Sa through which the yarn Ya travels. In other words, in this embodiment, the second heating member 54a, together with the first heating member 53a, forms the yarn traveling space Sa.

[0060] The contact block 55a is a long member made of, for example, SUS. The contact block 55a extends at least in the first direction. The contact block 55a is, for example, machined. The contact block 55a is disposed in a yarn traveling space S (yarn traveling space Sa) through which the yarn Ya travels. The contact block 55a has a contact surface 57 (contact surface 57a) that faces at least the other side in the height direction and that comes into contact with the yarn Ya. In other words, the first heating member 53a and the second heating member 54a are disposed so as not to come into contact with the traveling yarn Ya (i.e., so as to be spaced apart from the traveling yarn Ya) (see FIG. 4). The contact surface 57a extends at least in the first direction (see FIG. 3(d)). The contact surface 57a is, for example, gently curved in a substantially U-shape in a cross section perpendicular to the longitudinal direction of the machine frame (see FIG. 3(d)). The contact block 55a is fitted into the slit 56a. That is, the contact block 55a is in contact with at least one of the first heating member 53a and the second heating member 54a, for example. The contact block 55a should preferably be in contact with at least the second heating member 54a. More precisely, the contact block 55a is shorter than the slit 56a in the longitudinal direction of the machine base by, for example, 0.1 mm to 0.5 mm. Therefore, a small gap may be formed between the contact block 55a and the first heating member 53a or the second heating member 54a in the longitudinal direction of the machine base. It is most preferable that the contact block 55a be in contact with the second heating member 54a over its entire length in the first direction. The temperature of the contact block 55a is increased by heat conducted via the first heating member 53a and the second heating member 54a.

[0061] Next, the members for heating the yarn Yb will be described. The first heating member 53b is made of the first material, similar to the first heating member 53a. The first heating member 53b is disposed on the other side of the heat source 51 in the machine frame longitudinal direction. The first heating member 53b is disposed, for example, spaced apart from the heat source 51. The second heating member 54b is made of the second material, similar to the second heating member 54a. The second heating member 54b is disposed on the other side of the heat source 51 in the machine frame longitudinal direction. The second heating member 54b is disposed so as to be in contact with the heat source 51. The second heating member 54b is also disposed so as to be in contact with the first heating member 53b. The second heating member 54b, together with the second heating member 54a, is disposed, for example, so as to be sandwiched between the first heating member 53a and the first heating member 53b in the machine frame longitudinal direction. The second heating member 54b, together with the first heating member 53b, forms, for example, a slit 56b similar to the slit 56a. The contact block 55b is accommodated in the slit 56b. The slit 56b functions as a space for accommodating the contact block 55b and also as a yarn traveling space Sb through which the yarn Yb travels. The contact block 55b is a long member made of, for example, SUS. The contact block 55b is machined in the same way as the contact block 55a. The contact block 55b has a contact surface 57b, similar to the contact surface 57a, with which the yarn Yb comes into contact. In other words, the first heating member 53b and the second heating member 54b are arranged so as not to come into contact with the traveling yarn Yb (i.e., so as to be spaced apart from the traveling yarn Yb) (see FIG. 4). The contact block 55b is fitted into the slit 56b. That is, the contact block 55b is in contact with at least one of the first heating member 53b and the second heating member 54b.

[0062] (Details of the second heating element) Next, the second heating member 54 (here, the second heating member 54a will be representatively used) will be described in more detail with reference to FIGS. 3(b) and 4. The second heating member 54a is disposed, for example, so as to be sandwiched between the heat source 51 and the yarn traveling space Sa in a cross section perpendicular to the first direction. "Between the heat source 51 and the yarn traveling space Sa" is defined, for example, as follows. That is, in a predetermined cross section perpendicular to the first direction (see, for example, FIG. 4), a plurality of imaginary line segments (for example, line segments L1, L2, L3, etc.) can be drawn to connect a point Pa on the contact surface 57a that is furthest to one side in the height direction (i.e., in the cross section shown in FIG. 4, the point Pa is furthest from the entrance of the slit 56a in the height direction) and the outer surface 51s of the heat source 51. When at least one of these line segments passes through the second heating member 54a, it is defined that "the second heating member 54a is disposed between the heat source 51 and the yarn traveling space Sa." The same definition can be applied to "between the heat source 51 and the yarn traveling space Sb."

[0063] As in this embodiment, the second heating member 54 is preferably in contact with the heat source 51, the first heating member 53, and the contact block 55. The ratio of the heat capacity of the second heating member 54 to the heat capacity of the first heating member 53 is preferably, for example, 20% or more and 40% or less.

[0064] The second material constituting the second heating member 54 will be described in detail below. As described above, the volumetric specific heat of the second material is smaller than that of the first material. More specifically, a C / C composite (carbon fiber reinforced carbon composite material) is suitable as the second material. A C / C composite is a composite material of carbon fiber and graphite. For example, a known pitch-based carbon fiber is used as the carbon fiber. As shown in FIG. 5, in this embodiment, the volumetric specific heat of brass used as the first material is 3.35 J / (cm) at 20°C, for example. 3 ·K). In contrast, the volumetric specific heat of the C / C composite used as the second material is 1.12 J / (cm 3·K). Therefore, the temperature of the second heating member 54 can be increased more quickly than that of the first heating member 53. In other words, if the temperature of the yarn traveling space S, etc. drops due to an external disturbance, the temperature of the yarn traveling space S, etc. can be increased quickly via the second heating member 54. Therefore, even if the temperature of the yarn traveling space S, etc. drops, the temperature of the yarn traveling space S, etc. can be increased quickly.

[0065] In this embodiment, the C / C composite used as the second material has orientation. More specifically, many carbon fibers are oriented in a predetermined X direction. In this embodiment, the X direction is, for example, the first direction. This results in anisotropic thermal conductivity of the second material. As shown in FIG. 5, the thermal conductivity of the C / C composite in the first direction (X direction) is, for example, 180 W / (m·K) at 20°C. On the other hand, the thermal conductivity of the C / C composite in the Y direction (e.g., the machine table longitudinal direction, height direction, etc.) perpendicular to the X direction is, for example, 80 W / (m·K) at 20°C, which is lower than the thermal conductivity in the X direction. In this embodiment, the thermal conductivity of the C / C composite in the first direction is at least higher than the thermal conductivity of brass (e.g., 60 W / (m·K) at 20°C). The second heating element 54 made of such a second material can uniformly heat the material in the first direction.

[0066] Furthermore, in this embodiment, the thermal conductivity of the C / C composite (80 W / (m·K) as described above) is higher than the thermal conductivity of brass (60 W / (m·K) as described above) in any direction perpendicular to the first direction. In other words, the following holds: In a cross-sectional view (see FIG. 4) perpendicular to the first direction, for example, the direction of line segment L3 connecting point Pa and the outer surface 51s of the heat source 51 at the shortest distance is defined as the second direction. Line segment L3 corresponds to the "predetermined imaginary line extending from the heat source toward the yarn traveling space" in this invention. With this configuration, heat can be quickly transferred from the heat source 51 to the yarn traveling space Sa, etc. Therefore, the temperature of the yarn traveling space Sa, etc. can be quickly increased. Similarly, the temperature of the yarn traveling space Sb, etc. can be quickly increased.

[0067] It is particularly preferable that the first heating device 13 of this embodiment heats the running yarn Y while bringing it into contact with the contact surface 57, with the heating temperature set to a predetermined temperature of, for example, 230°C or higher and 350°C or lower. In this temperature range, the heating efficiency of the yarn Y can be improved compared to conventional heating devices (not shown). Of course, the heating temperature of the first heating device 13 may be set to a temperature lower than 230°C or higher than 350°C.

[0068] As described above, by using a material with a relatively high volumetric specific heat as the first material constituting the first heating member 53, it is possible to suppress to some extent a temperature drop in the heating unit 52 due to disturbances. Furthermore, in this embodiment, the second heating member 54, which has a low volumetric specific heat, can be heated more quickly than the first heating member 53. This allows the yarn traveling space S and the like to be heated quickly via the second heating member 54 disposed between the heat source 51 and the yarn traveling space S. Therefore, such rapid heating can suppress a temperature drop in the yarn traveling space S and the like due to disturbances. Furthermore, even if the temperature of the yarn traveling space S and the like drops due to disturbances, the yarn traveling space S and the like can be heated quickly.

[0069] Furthermore, the second heating member 54 is in contact with the heat source 51. This allows the heat generated by the heat source 51 to be quickly transferred to the second heating member 54. Therefore, the temperature of the second heating member 54 can be raised effectively.

[0070] Additionally, the second heating member 54 forms the yarn traveling space S together with the first heating member 53. Therefore, the second heating member 54 can effectively increase the temperature of the yarn traveling space S and the like.

[0071] Furthermore, the second heating member 54 is in contact with the first heating member 53. Therefore, the first heating member 53 can be quickly heated via the second heating member 54. In this case, an increase in manufacturing costs can be suppressed compared to, for example, a case in which a heat source (not shown) for heating the first heating member 53 is provided separately from the heat source 51 and the second heating member 54 is disposed away from the first heating member 53.

[0072] Furthermore, the ratio of the heat capacity of the second heating member 54 to the heat capacity of the first heating member 53 is 20% or more and 40% or less. In this way, the heat capacity of the second heating member 54 is neither too large nor too small compared to the heat capacity of the first heating member 53. This makes it possible to make the heating section 52 somewhat resistant to external disturbances, and to quickly raise the temperature of the yarn traveling space S, etc.

[0073] The second material constituting the second heating member 54 includes a fibrous material, which allows the second material to have anisotropic thermal conductivity, allowing heat to be transferred very quickly, particularly in the desired direction.

[0074] The fiber material is carbon fiber. Carbon fiber is a lightweight material with high thermal conductivity. Therefore, heat can be transferred very quickly in the desired direction. Furthermore, the weight of the first heating device 13 can be reduced.

[0075] The carbon fiber is a pitch-based fiber. Generally, pitch-based carbon fiber and PAN-based carbon fiber are known as carbon fibers. Generally, pitch-based carbon fiber has a higher thermal conductivity than PAN-based carbon fiber. Therefore, by using pitch-based carbon fiber as the carbon fiber, the thermal conductivity of the second material can be further increased.

[0076] Furthermore, by using a composite material of carbon fiber and graphite as the second material, the thermal conductivity of the second material can be further increased.

[0077] Furthermore, the second material has a higher thermal conductivity in the first direction than the first material, which allows heat to be transferred quickly in the first direction via the second heating member 54. This makes it possible to suppress temperature variations in the yarn traveling space S, etc. in the first direction.

[0078] Furthermore, the second material has a higher thermal conductivity in the second direction than the first material, which allows heat to be quickly transferred from the heat source 51 to the yarn traveling space S, etc. via the second heating member 54. This allows the temperature of the yarn traveling space S, etc. to be quickly increased.

[0079] The heating unit 52 also has a contact block 55. In a configuration in which the contact block 55 is provided as in the present embodiment, the temperature of the second heating member 54 can be raised quickly, thereby effectively raising the temperature of the contact block 55.

[0080] In addition, the contact block 55 is in contact with the second heating member 54. Therefore, the temperature of the contact block 55 can be effectively increased by heat conduction between the contact block 55 and the second heating member 54, which is heated quickly.

[0081] Furthermore, by performing false twisting in the false twisting machine 1 equipped with the first heating device 13, it is possible to suppress fluctuations in the heating temperature required to process the yarn Y due to external disturbances. Therefore, it is possible to suppress fluctuations in the quality of the yarn Y processed by the false twisting machine 1.

[0082] Next, a modified example of the embodiment will be described, with the same reference numerals being used to designate components having the same configuration as the embodiment, and the description thereof will be omitted as appropriate.

[0083] (1) In the above embodiment, the carbon fibers contained in the C / C composite, which is the second material, are oriented in the first direction. However, this is not limited to this. For example, in the second heating member 54a, the carbon fibers may be oriented in the second direction. Also, in the second heating member 54b, the carbon fibers may be oriented in a direction from the heat source 51 toward the yarn traveling space Sb, etc. In this case, heat can be transferred very quickly from the heat source 51 to the yarn traveling space S, etc.

[0084] (2) In the above embodiments, the carbon fibers contained in the second material are pitch-based fibers. However, this is not limiting. The carbon fibers may be, for example, known PAN-based carbon fibers.

[0085] (3) In the above-described embodiments, the second material is a C / C composite (a composite material of carbon fiber and graphite). However, this is not limiting. The second material may be, for example, CFRP (carbon fiber reinforced plastic), which is a composite material of carbon fiber and resin (e.g., epoxy resin). Since CFRP is less expensive than a C / C composite, using CFRP as the second material can prevent an increase in the manufacturing cost of the first heating device 13.

[0086] (4) In the above-described embodiments, the second material contains carbon fiber as a fiber material. However, this is not limited to this. Materials other than carbon fiber may be used as the fiber material.

[0087] (5) In the above embodiments, the carbon fibers contained in the C / C composite are oriented in a predetermined X direction. However, this is not limiting. The carbon fibers do not have to be oriented in a specific direction (i.e., they may be oriented randomly).

[0088] (6) In the above-described embodiments, the thermal conductivity of the second material is higher than that of the first material in both the first and second directions. However, this is not limited to this. For example, the thermal conductivity of the second material may be higher than that of the first material in only one of the first and second directions. Alternatively, the thermal conductivity of the second material may be equal to or lower than that of the first material. The second material may simply have a characteristic of having a smaller volumetric specific heat than the first material. As an example, the first heating member 53 may be made of aluminum. As shown in FIG. 6(a), the volumetric specific heat of aluminum (first material) is 2.43 J / (cm) at 20°C. 3 In this case, the volumetric specific heat of the C / C composite (second material) is still smaller than that of aluminum. On the other hand, the thermal conductivity of aluminum (first material) is 204 W / (m·K) at 20°C, which is higher than that of the C / C composite (second material) in any direction.

[0089] (7) The combination of the first material and the second material is not limited to the above. For example, as shown in FIG. 6(b), the first material may be brass and the second material may be aluminum. In this case, the volumetric specific heat of the second material is lower than that of the first material, and the thermal conductivity of the second material is higher than that of the first material. Aluminum has better heat resistance than a C / C composite. When a material with such excellent heat resistance is used in the heating section 52, the heating temperature can be set higher. In this case, the first heating device 13 may be a non-contact heating device (not shown), such as that described in Japanese Patent Application Laid-Open No. 2002-146640. In a non-contact heating device, instead of the contact block 55, multiple yarn guides (not shown) are provided, spaced apart from each other in the first direction. Each yarn guide is not a component for directly heating the yarn Y, but simply a component for guiding the yarn Y. In a non-contact heating device, the yarn Y is mainly heated by the heated air in the yarn traveling space S.

[0090] (8) In the above-described embodiments, the first heating device 13 is configured to heat two yarns Y. However, this is not limited to this. A first heating device (not shown) configured to heat three or more yarns Y may be provided. Alternatively, as shown in FIG. 7, for example, a first heating device 13A configured to heat one yarn Y may be provided. Compared to the heating unit 52 (see FIG. 4, etc.), the heating section 52A of the first heating device 13A may simply be configured without the first heating member 53b and the contact block 55b. Alternatively, the first heating device 13A may be provided with a first heating member 61 made of a first material instead of the second heating member 54b.

[0091] (9) In the above-described embodiments, the second heating member 54 is in contact with the heat source 51 and the contact block 55. However, this is not limited to this. The second heating member 54 may be in contact with only one of the heat source 51 and the contact block 55, or may not be in contact with either the heat source 51 or the contact block 55. In this case, only the first heating member 53 may be provided so as to be in contact with the heat source 51 and / or the contact block 55. Furthermore, in the above-described embodiments, the second heating member 54 is in contact with the first heating member 53, but this is not limited to this. For example, a heat source (not shown) that heats the first heating member 53 may be provided separately from the heat source 51, and the second heating member 54 may be disposed apart from the first heating member 53.

[0092] Also, for example, only a portion of the contact block 55 in the first direction may be in contact with the second heating member 54. However, in this case, the heating efficiency of the contact block 55 is lower than in a configuration in which the contact block 55 is in contact with the second heating member 54 over the entire length in the first direction.

[0093] Alternatively, neither the first heating member 53 nor the second heating member 54 may be in contact with the contact block 55. However, in this case, the heating efficiency of the contact block 55 is low. The heating efficiency of the contact block 55 increases in the following order: First, a configuration in which at least the second heating member 54 is in contact with the contact block 55 has the highest heating efficiency. Second, a configuration in which only the first heating member 53 is in contact with the contact block 55 has the second highest heating efficiency. Third, a configuration in which neither the first heating member 53 nor the second heating member 54 is in contact with the contact block 55 has the lowest heating efficiency. If two or more of the first to third configurations are unintentionally mixed among the multiple heating sections 52, variations in the heating efficiency of the contact block 55 may occur among the multiple heating sections 52. For this reason, it is desirable to standardize the multiple heating sections 52 and the multiple first heating devices 13 to any of the first to third configurations as much as possible.

[0094] (10) In the above-described embodiments, the ratio of the heat capacity of the second heating member 54 to the heat capacity of the first heating member 53 is set to 20% or more and 40% or less. However, this is not limited to this. For example, the ratio may be less than 20% or greater than 40%.

[0095] (11) In the above-described embodiment, the contact surface 57 is curved in a cross section perpendicular to the longitudinal direction of the machine base. However, this is not limited to this. The contact surface 57 may be, for example, substantially linear in a cross section perpendicular to the longitudinal direction of the machine base.

[0096] (12) In the above-described embodiments, the first heating device 13 and the first heating device 13A have the contact block 55. However, this is not limited to this. Instead of the contact block 55, a stainless steel plate (not shown) processed into an inverted U-shape in a cross section perpendicular to the first direction may be provided as a contact member (see, for example, Japanese Patent Application Laid-Open No. 2002-194631).

[0097] (13) The contact member (contact block 55 or the above-described SUS plate) may be configured to be detachable from the heating unit 52. This allows the contact member to be temporarily removed from the heating unit 52, significantly improving the efficiency of maintenance such as cleaning of the contact member.

[0098] (14) In the above-described embodiments, the slit 56 is formed by both the first heating member 53 and the second heating member 54. However, this is not limited to this. The slit 56 may be formed by only one of the first heating member 53 and the second heating member 54. In other words, the first heating member 53 may form the entire slit 56. Alternatively, the second heating member 54 may form the entire slit 56.

[0099] (15) In the above-described embodiments, the heat source 51 includes a sheathed heater. However, this is not limited to this. Instead of the heat source 51, a heat source (not shown) configured to heat the heating unit 52 using, for example, a heat medium may be provided.

[0100] (16) The configuration of the first heating device 13 described above may be applied to the second heating device 19. Furthermore, the first heating device 13 described above is not limited to the false twisting machine 1, and may also be applied to known false twisting machines (not shown) having other configurations. For example, the present invention may be applied to the false twisting machine (not shown) described in JP 2009-74219 A. This false twisting machine is configured to be able to form a single yarn by doubling two yarns. This false twisting machine is configured to be able to wind a single doubling yarn or two undoubling yarns onto a single cradle. For example, the present invention may be applied to such a false twisting machine. Alternatively, the first heating device 13 may be applied to a yarn processing machine that processes a traveling yarn (not shown), such as a known air processing machine (not shown), in addition to the false twisting machine. [Explanation of symbols]

[0101] 1. False twisting machine (yarn processing machine) 11 First feed roller (yarn feeding device) 13 First heating device (heating device) 15 False twist device (yarn deformation device) 51 Heat source 52 Heating section 53 First heating element 54 Second heating element 55 Contact block (contact member) S Yarn running space Y thread

Claims

1. A heat source and a heating unit configured to be heated by the heat source and to form a yarn traveling space extending at least in a predetermined first direction, The heating unit is a first heating member made of a first material and arranged so as not to come into contact with the yarn traveling in the yarn traveling space; a second heating member that is arranged at least between the heat source and the yarn traveling space in a cross section perpendicular to the first direction, and that is arranged so as not to come into contact with the yarn traveling in the yarn traveling space, and that is made of a second material having a lower volumetric specific heat than the first material; the second heating member is in contact with the first heating member; A heating device, characterized in that the ratio of the heat capacity of the second heating member to the heat capacity of the first heating member is 20% or more and 40% or less.

2. 2. The heating device according to claim 1, wherein the second heating member is in contact with the heat source.

3. The heating device of claim 1 , wherein the second material comprises a fibrous material.

4. 4. The heating device according to claim 3, wherein the fiber material is carbon fiber.

5. 5. The heating device according to claim 4, wherein the carbon fiber is a pitch-based fiber.

6. 5. The heating device according to claim 4, wherein the second material is a composite material of the carbon fiber and graphite.

7. 5. The heating device according to claim 4, wherein the second material is a composite material of the carbon fiber and a resin.

8. the second heating member is disposed so as to extend in at least the first direction; 8. The heating device according to claim 1, wherein the second material has a higher thermal conductivity in at least the first direction than the first material.

9. When a direction in which a predetermined imaginary straight line extending from the heat source toward the yarn traveling space in a cross section perpendicular to the first direction extends is defined as a second direction, 8. The heating device according to claim 1, wherein the second material has a higher thermal conductivity in at least the second direction than the first material.

10. When a direction in which a predetermined imaginary straight line extending from the heat source toward the yarn traveling space in a cross section perpendicular to the first direction extends is defined as a second direction, The heating device according to claim 8 , wherein the second material has a higher thermal conductivity in at least the second direction than the first material.

11. The heating unit is 8. The heating device according to claim 1, further comprising a contact member extending in at least the first direction for contacting the yarn.

12. The heating unit is 9. The heating device according to claim 8, further comprising a contact member extending in at least the first direction for contacting the yarn.

13. The heating unit is 10. The heating device according to claim 9, further comprising a contact member extending in at least the first direction for contacting the yarn.

14. The heating unit is 11. The heating device according to claim 10, further comprising a contact member extending in at least the first direction for contacting the yarn.

15. The heating device according to claim 11 , wherein the contact member is in contact with the second heating member.

16. The heating device according to claim 12 , wherein the contact member is in contact with the second heating member.

17. The heating device according to claim 13 , wherein the contact member is in contact with the second heating member.

18. The heating device according to claim 14 , wherein the contact member is in contact with the second heating member.

19. The heating device according to claim 11, wherein the contact member is configured to be detachable from the heating unit.

20. 13. The heating device according to claim 12, wherein the contact member is configured to be detachable from the heating unit.

21. 14. The heating device according to claim 13, wherein the contact member is configured to be detachable from the heating unit.

22. 15. The heating device according to claim 14, wherein the contact member is configured to be detachable from the heating unit.

23. A heating device according to any one of claims 1 to 7; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

24. The heating device according to claim 8; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

25. The heating device according to claim 9 ; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

26. The heating device according to claim 10; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

27. A heating device according to claim 11; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

28. A heating device according to claim 12; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

29. A heating device according to claim 13; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

30. A heating device according to claim 14; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

31. A heating device according to claim 15; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

32. A heating device according to claim 16; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

33. A heating device according to claim 17; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

34. A heating device according to claim 18; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

35. A heating device according to claim 19; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

36. A heating device according to claim 20; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

37. A heating device according to claim 21; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

38. A heating device according to claim 22; a yarn deformation imparting device that imparts deformation to the yarn; a yarn feeding device configured to feed the yarn to the heating device and the yarn deformation imparting device, A yarn processing machine configured to process the yarn while it is traveling.

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