TW202424298A - Yarn heater - Google Patents

Abstract

An object of the present invention is to reduce power consumption. A first heater 13 is provided with a yarn running groove, and includes: a heating unit configured to heat a yarn running in the yarn running groove; three heat insulating blocks which extend along an extending direction and which are aligned in a base longitudinal direction so as to oppose an open end, i.e., a lower end of the yarn running groove; and closing members 79, side plates 63a, side plates 63b, and central plates 64 each of which are provided on both sides of the heat insulating blocks in the extending direction. In this regard, gaps between the side plates 63a, the side plates 63b, and the central plates 64 form slits 67 through which the yarn passes when the yarn is inserted into the yarn running groove. When viewed in the extending direction, the slits 67 are provided to oppose paths formed between the adjacent heat insulating blocks. The closing members 79 are movable between a close position where the slits 67 are closed and a retracted position where the slits 67 are not closed.

Description

Wire heating device

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

Conventionally, a yarn heating device for heating the traveling yarn in a processing machine for performing various processes such as doubling processing and false twisting processing on yarns made of synthetic fibers has been known. Patent Document 1 discloses a heating device (wire heating device), which includes a heating body (heating part), a wire running groove (wire running groove) formed and heated by a heating element, and a work surface side thermal insulation material (heat insulation material). block), arranged on the working surface side of the heating body for threading wires; and a thermal insulation cover, arranged on the outside of the heating body and the working surface side insulation material. A groove (passage) connected to the wire running groove formed in the heating body is formed in the work surface side heat insulating material.

Patent document 1: Japanese Patent Application Publication No. 2002-220755

[The problem the invention is trying to solve]

In the above-mentioned wire heating device, the walls (opposite walls) located on both sides of the working surface side heat insulation material in the direction in which the wire running groove extends in the heat insulation cover are formed with slits for the wire to pass through when the wire is inserted into the wire running groove through the groove (passage) formed in the working surface side heat insulation material (insulation block). Therefore, when the wire is heated, the air in the passage of the heated insulation block flows out from the slits formed in the opposite wall. As a result, the power consumption for heating the wire increases.

The purpose of the present invention is to provide a wire heating device capable of reducing power consumption. [Technical means for solving the problem]

The first invention is a wire heating device that forms a wire running groove for wire running, wherein the device comprises: a heating portion that extends along the direction in which the wire running groove extends, i.e., the first direction, for heating the wire running in the wire running groove; at least two insulation blocks that extend along the first direction and are arranged in a third direction that is orthogonal to both the first direction and the second direction at positions opposite to the open ends of the wire running groove on one side of the second direction that is orthogonal to the first direction; a closing component that is arranged on at least one side of the at least two insulation blocks in the first direction; and an opposing wall that is arranged on at least one side of the at least two insulation blocks in the first direction. The gap between the adjacent above-mentioned insulation blocks constitutes a passage for inserting the wire into the above-mentioned wire running groove. A slit is formed on the above-mentioned opposing wall at a portion opposite to the above-mentioned passage in the above-mentioned first direction. The slit allows the wire to pass when the wire is inserted into the above-mentioned wire running groove through the above-mentioned passage. The above-mentioned closing component can move between a closing position that closes at least a portion of the above-mentioned slit and a retreat position that does not close the above-mentioned slit.

In the present invention, by placing the closing member in the closing position, it is possible to suppress the air in the passage (the gap between adjacent heat insulating blocks) heated when the wire is heated from flowing out from the slit formed in the opposite wall. Therefore, it is possible to reduce power consumption. In addition, by placing the closing member in the retreat position, when the wire is inserted into the wire running groove through the passage (the gap between adjacent heat insulating blocks), the running path of the wire will not be blocked by the closing member.

The wire heating device of the second invention is that, in the first invention, the above-mentioned closing member and the above-mentioned opposing wall are respectively arranged on both sides of the above-mentioned at least two heat-insulating blocks in the above-mentioned first direction.

In the present invention, the closing member can prevent the air heated when the wire is heated from flowing out through the slits from both ends of the passage (the gap between adjacent heat insulating blocks) in the first direction. Therefore, power consumption can be reliably reduced.

The wire heating device of the third invention is that, in the first and second inventions, the closing member, when located at the closing position, faces the entire area of the passage as viewed from the first direction.

In the present invention, the entire area of the passage (the gap between at least two heat insulating blocks) can be closed by the closing member when viewed from the first direction. Therefore, it is possible to reliably suppress the outflow of air from the passage through the slit, and it is possible to further reduce power consumption.

The wire heating device of the 4th invention is that in any one of the 1st to 3rd inventions, the wire heating device comprises: an opening wall, which is arranged on the side opposite to the wire running groove relative to the at least two insulation blocks, and an opening is formed in the portion opposite to the at least two insulation blocks; and a door, which can move between a closed position for closing the opening and an open position for opening the opening, and the closing component can move in conjunction with the movement of the door, and when the door is located at the open position, the closing component is located at the retreat position, and when the door is located at the closed position, the closing component is located at the closed position.

In the present invention, the door is in the open position, and the wire can be inserted into the wire running groove through the opening of the opening wall and the passage between the adjacent insulation blocks. At this time, since the closing member is in the retreat position that does not close the slit, the wire can pass through the slit. Therefore, when the door is in the open position and the wire is set in the wire heating device, the running path of the wire will not be blocked by the closing member. In addition, by putting the door in the closed position, the closing member is in the closed position that closes at least a part of the slit. Therefore, when the door is in the closed position and the wire is heated, the closing member can suppress the heated air in the passage between adjacent insulation blocks from flowing out through the slit, thereby reducing power consumption.

A fifth invention is a yarn heating device according to the fourth invention, wherein the closing member is moved from the retreat position to the closing position by being pressed upward by the door.

In the present invention, the closing member is not pressed upward by the door but moves from the closing position to the retreat position by its own weight. Therefore, a mechanism for moving the closing member from the closing position to the retreat position is not required.

The wire heating device of the 6th invention is that in any one of the 1st to 5th inventions, a wire running hole for the running wire to pass through is formed in the portion of the above-mentioned opposing wall opposite to the above-mentioned wire running groove in the above-mentioned first direction, and when the above-mentioned closing component is located in the above-mentioned closing position, an area through which the wire can pass is reserved in the above-mentioned wire running hole and a part of the above-mentioned wire running hole is blocked.

In the present invention, the closing member can prevent the heated air from flowing out from the open end of the thread running groove in the first direction when the thread is heated. Therefore, the power consumption can be further reduced.

The wire heating device of the 7th invention is that in any one of the 1st to 6th inventions, the wire heating device has a fixing component, the position of the fixing component in the moving direction of the above-mentioned closing component is fixed, a guide groove extending along the moving direction of the above-mentioned closing component is formed on any one of the above-mentioned closing component and the above-mentioned fixing component, and a protrusion capable of being arranged in the above-mentioned guide groove is formed on the side of the above-mentioned closing component and the above-mentioned fixing component that is different from the side where the above-mentioned guide groove is formed.

In the present invention, the movement of the closing member can be guided by the guide groove.

The wire heating device of the 8th invention is that in the 7th invention, the above-mentioned insulation blocks are provided with three, and end parts are respectively arranged on both sides of the above-mentioned first direction of the central insulation block among the above-mentioned three insulation blocks arranged along the above-mentioned third direction, and either the above-mentioned central insulation block and the above-mentioned end parts is the above-mentioned fixed part, and the above-mentioned closing part moves between the above-mentioned closing position and the above-mentioned retreat position by the relative movement of the above-mentioned central insulation block and the above-mentioned end parts.

In the present invention, the closing member can be moved between the closing position and the retreat position by moving the central heat insulating block and the end members relative to each other.

The wire heating device of the 9th invention is that in the 8th invention, the above-mentioned end member functions as the above-mentioned fixing member and can adjust the position in the above-mentioned third direction, and the above-mentioned closing member is installed on the above-mentioned central insulation block.

For example, the following structure can be considered: by setting the central heat insulating block as a fixed component, the end component is moved in the moving direction of the closing component, and the closing component is moved between the closed position and the retreat position. That is, in this case, the end component can move in the third direction and in the moving direction of the closing component. In the case where the end component can also move in directions other than the third direction, the accuracy of the position adjustment of the end component in the third direction may be reduced. In the present invention, by setting the end component as a fixed component whose position in the moving direction of the closing component is fixed, the position adjustment in the third direction can be performed with high accuracy using the end component.

The wire heating device of the tenth invention is that, in the ninth invention, the above-mentioned closing component moves from the above-mentioned closing position to the above-mentioned retreat position by moving the above-mentioned central heat insulating block in a direction away from the above-mentioned wire running groove, and the above-mentioned central heat insulating block has a trapezoidal shape expanding in a direction away from the above-mentioned wire running groove when observed from the above-mentioned first direction.

In the present invention, when the closing member is placed in the retracted position and the wire is set in the wire heating device, it is difficult to hook the wire on the central insulation block.

The wire heating device of the eleventh invention is that, in the tenth invention, when the closing member is located at the closing position, the central heat insulating block is in contact with the adjacent heat insulating block.

In the present invention, when heating the wire, the gap between adjacent heat insulating blocks can be minimized, reducing the space for heat release from the heating part. Therefore, power consumption can be further reduced.

The wire heating device of the twelfth invention is that, in any one of the first to eleventh inventions, the slit extends in a direction inclined relative to the moving direction of the closing member, and the closing member has an edge extending in a direction parallel to the extending direction of the slit.

In the present invention, compared with the case where the slit extends along the moving direction of the closing member, the moving distance between the closing position and the retreat position of the closing member can be shortened.

The 13th invention is a wire heating device according to any one of the 1st to 12th inventions, wherein the wire heating device comprises a storage body which stores the heating part and the at least two insulation blocks, and the opposing wall is detachably mounted on the storage body.

In the present invention, by placing the closing member close to the opposing wall, even if the closing member rubs against the opposing wall and the opposing wall is damaged, the opposing wall can be removed from the storage body and replaced. Therefore, the closing member can be placed close to the opposing wall and the slit can be reliably closed.

The yarn heating device of the 14th invention is that, in any one of the 1st to 13th inventions, at least a portion of the yarn running groove is defined by the heating portion.

In the present invention, the wire can be heated efficiently.

The wire heating device of the fifteenth invention is, in any one of the first to fourteenth inventions, wherein the heating portion heats the wire in a non-contact manner by heated air.

In the non-contact heating part, the heating temperature is relatively high, and the air heated when the wire is heated becomes relatively high. In the present invention, by suppressing the heated air from flowing out from the end of the first direction of the gap between adjacent insulation blocks when the wire is heated, power consumption can be effectively reduced.

A false twisting machine 1 according to a preferred embodiment of the present invention will be described with reference to FIG. 1 . In addition, let the vertical direction on the paper surface of FIG. 1 be the body length direction, and let the left-right direction on the paper surface be the body width direction. Let the direction orthogonal to both the body length direction and the body width direction be the up-down direction on which gravity acts. The body length direction and the body width direction are substantially parallel to the horizontal direction.

(Overall structure of false twisting machine 1) The false twisting machine 1 can perform false twisting on a yarn Y made of synthetic fibers such as nylon (polyamide fiber) or polyester, for example. The false twisting machine 1 includes a yarn supply part 2 for supplying a yarn Y, a processing part 3 for performing false twisting on the yarn Y supplied from the yarn supply part 2, and winding the yarn Y processed by the processing part 3 into a roll. Take the winding part 4 of the bobbin Bw. A plurality of components of the yarn feeding unit 2, the processing unit 3, and the winding unit 4 are arranged in the longitudinal direction of the machine body (see Fig. 2). The machine body length direction is a direction orthogonal to the travel plane (paper surface of Figure 1) of the yarn Y formed by the yarn channel from the yarn supply section 2 through the processing section 3 to the winding section 4.

The yarn supply unit 2 has a creel 5 holding a plurality of yarn supply packages Ps. The yarn supply part 2 supplies a plurality of yarns Y to the processing part 3 . The processing unit 3 performs false twisting on the yarn Y supplied from the yarn supply package Ps. The processing section 3 is provided with a first yarn supply roller 11, a twist-stopping yarn guide 12, a first heating device 13 (equivalent to the "yarn heating device" of the present invention), and a cooling device 14 in order from the upstream side in the yarn traveling direction. , false twisting device 15, second yarn supply roller 16, interlacing device 17, third yarn supply roller 18, second heating device 19 and fourth yarn supply roller 20. The winding part 4 has a plurality of winding devices 21 . Each winding device 21 winds the yarn Y that has been falsely twisted by the processing unit 3 onto the winding bobbin Bw to form a winding package Pw.

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

The false twisting machine 1 has a unit unit called a span including a pair of main bodies 8 and a winding table 9 arranged to face each other. In one span, a plurality of processing units (also referred to as spindles) that form a wire passage through each device constituting the processing section 3 are arranged in an array in the longitudinal direction of the body. Accordingly, false twisting can be performed simultaneously on a plurality of yarns Y running in a state aligned along the longitudinal direction of the machine body in one span. In the false twisting machine 1, the spans are arranged left and right symmetrically on the paper with the center line C in the body width direction of the main body 8 as the axis of symmetry. The main body 8 is common to both left and right spans.

(Structure of the Processing Section) The structure of the processing section 3 will be described with reference to FIGS. 1 and 2 . The first yarn supply roller 11 unwinds the yarn Y from the yarn supply package Ps attached to the yarn supply section 2 and transports it to the first heating device 13 . For example, as shown in FIG. 2 , the first yarn supply roller 11 conveys one yarn Y to the first heating device 13 . Alternatively, the first yarn supply roller 11 may be capable of conveying a plurality of adjacent yarns Y to the downstream side in the yarn traveling direction. The twist-stopping guide 12 prevents the twist applied to the yarn Y by the false twisting device 15 from propagating upstream of the twist-stopping guide 12 in the yarn traveling direction.

The first heating device 13 is a device for heating the yarn Y fed from the first yarn supply roll 11 to a predetermined processing temperature. For example, as shown in FIG2 , the first heating device 13 can heat two yarns Y. The first heating device 13 will be described in more detail later.

The cooling device 14 cools the yarn Y heated by the first heating device 13. For example, as shown in FIG2 , the cooling device 14 cools one yarn Y. The cooling device 14 may also be capable of cooling a plurality of yarns Y at the same time.

The false twisting device 15 is disposed downstream of the cooling device 14 in the yarn traveling direction. The false twisting device 15 twists the yarn Y. The false twisting device 15 is, for example, a so-called friction disk type false twisting device, but it is not limited to this.

The second yarn supply roller 16 transports the yarn Y processed by the false twisting device 15 to the interlacing device 17 . The conveyance speed of the yarn Y by the second yarn supply roller 16 is faster than the conveyance speed of the yarn Y by the first yarn supply roller 11 . Thereby, the yarn Y is drawn and falsely twisted between the first yarn supply roller 11 and the second yarn supply roller 16 .

The interlacing device 17 interlaces the yarns Y. The interlacing device 17 has, for example, a known interlacing nozzle for interlacing the yarns Y by air flow.

The third yarn supply roller 18 conveys the yarn Y running on the downstream side of the yarn running direction relative to the interlacing device 17 to the second heating device 19. For example, as shown in FIG2 , the third yarn supply roller 18 conveys one yarn Y to the second heating device 19. Alternatively, the third yarn supply roller 18 may convey a plurality of adjacent yarns Y to the downstream side of the yarn running direction, respectively. In addition, the conveying speed of the yarn Y by the third yarn supply roller 18 is slower than the conveying speed of the yarn Y by the second yarn supply roller 16. Therefore, the yarn Y is slack between the second yarn supply roller 16 and the third yarn supply roller 18.

The second heating device 19 heats the yarn Y fed from the third yarn supply roller 18. The second heating device 19 extends in the lead-vertical direction and is provided one per span.

The fourth yarn supply roller 20 conveys the yarn Y heated by the second heating device 19 to the winding device 21. For example, as shown in FIG. 2 , the fourth yarn supply roller 20 can convey one yarn Y to the winding device 21. Alternatively, the fourth yarn supply roller 20 can convey a plurality of adjacent yarns Y to the downstream side of the yarn travel direction. The conveying speed of the yarn Y by the fourth yarn supply roller 20 is slower than the conveying speed of the yarn Y by the third yarn supply roller 18. Therefore, the yarn Y is slack between the third yarn supply roller 18 and the fourth yarn supply roller 20.

In the processing section 3 configured as above, the yarn Y drawn between the first yarn supply roller 11 and the second yarn supply roller 16 is twisted by the false twisting device 15 . The twist formed by the false twist device 15 propagates to the twist-stopping yarn guide 12 but does not propagate upstream of the twist-stopping yarn guide 12 in the yarn traveling direction. The stretched and twisted yarn Y is heated and heat-set by the first heating device 13 and then cooled by the cooling device 14 . The yarn Y is untwisted on the downstream side in the yarn traveling direction of the false twisting device 15, but the state in which the yarn Y is falsely twisted into a corrugated shape is maintained by the heat setting (that is, the crimp of the yarn Y is maintained).

The false-twisted yarn Y is entangled by the interlacing device 17 while relaxing between the second yarn supply roller 16 and the third yarn supply roller 18, and is then guided downstream in the yarn traveling direction. Furthermore, the yarn Y is heat-treated by the second heating device 19 while relaxing between the third yarn supply roller 18 and the fourth yarn supply roller 20 . Finally, the yarn Y fed from the fourth yarn supply roller 20 is wound up by the winding device 21 .

(Structure of the winding section) The structure of the winding section 4 is explained with reference to FIG. 2. The winding section 4 has a plurality of winding devices 21. Each winding device 21 can wind the yarn Y on a winding tube Bw. The winding device 21 has a fulcrum wire guide 41, a transverse device 42, and a rocker 43. The fulcrum wire guide 41 is a wire guide that serves as a fulcrum when the yarn Y is transversely moved. The transverse device 42 can cause the yarn Y to transversely move by means of the transverse wire guide 45. The rocker 43 supports the winding tube Bw so that it can rotate freely. A contact roller 46 is arranged near the rocker 43. The contact roller 46 contacts the surface of the winding package Pw and applies contact pressure. In the winding section 4 constructed as above, the yarn Y delivered from the fourth yarn supply roller 20 is wound on the winding bobbin Bw by each winding device 21 to form the winding package Pw.

(First heating device) Next, the more specific structure of the first heating device 13 is further described with reference to FIGS. 3 to 9. As shown in FIG. 3, the first heating device 13 extends along a predetermined extension direction (equivalent to the "first direction" of the present invention) that is 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.

As shown in FIG5(b), a wire running groove 56 extending in the extending direction is formed in the first heating device 13. The first heating device 13 heats the wire Y running in the wire running groove 56. In this embodiment, the first heating device 13 can heat two wires Y (wires Ya, Yb: refer to FIG4 and FIG6).

As shown in Figures 4, 6, and 7, the first heating device 13 mainly includes a heating section 50, insulation blocks 71, 72, and 73, a closing component 79, and a heat preservation box 60. A wire running groove 56 (56a, 56b) extending along the extension direction is formed in the heating section 50. The arrangement direction of the two wire running grooves 56a and 56b is the length direction of the body. The heating section 50 heats the wire Y (wire Ya, Yb) running in the wire running groove 56 (56a, 56b). The insulation blocks 71, 72, and 73 are arranged below the heating section 50. The closing component 79 is mounted on the insulation block 72 (refer to Figures 7 and 9). The heat preservation box 60 accommodates the heating section 50 and the insulation blocks 71, 72, and 73. The heat insulating material 70 is disposed to fill the gap between the inner wall surface of the heat-insulating box 60 and the heating unit 50 and the heat-insulating blocks 71, 72, 73 housed in the heat-insulating box 60. The heat insulating material 70 is made of, for example, asbestos, ceramic fiber, or the like.

The heating portion 50 extends along the extension direction. The heating portion 50 mainly includes a heat source 51, two heating blocks 52 (52a, 52b) and two connecting portions 54 (54a, 54b). The heat source 51 is, for example, a sheath heater. The heat source 51 extends along the extension direction. The heating block 52 and the connecting portion 54 are heated by the heat generated by the heat source 51. The heating block 52 and the connecting portion 54 extend in the extension direction along the heat source 51.

The heating block 52a and the connecting portion 54a are components for heating the wire Ya. The heating block 52b and the connecting portion 54b are components for heating the wire Yb. The components for heating the wire Ya and the components for heating the wire Yb are arranged at positions on opposite sides of each other with the heat source 51 interposed therebetween in the longitudinal direction of the machine body.

The components for heating the wire Ya are described. The heating block 52a is made of a metal material with a large specific heat, such as brass. The heating block 52a is arranged to be in contact with the heat source 51. The heating block 52a is arranged on one side of the body length direction of the heat source 51 (the left side of the paper of Figure 4). A recess 53 (53a) extending along the extension direction is formed in the heating block 52a. The recess 53a is open to the lower side. The wire connection portion 54 (54a) is accommodated in the recess 53a.

The connecting portion 54a is, for example, a long strip of SUS. The connecting portion 54a is fixed to the heating block 52a while in contact with the heating block 52a. The connecting portion 54a is heated by the heat transferred from the heat source 51 via the heating block 52a. The connecting portion 54a has a connecting surface 55 (55a) for contacting the wire Y. The connecting surface 55a faces downward. As shown in (b) of Figure 5, the connecting surface 55a is bent convexly toward the lower side in a cross section perpendicular to the length direction of the body. As shown in (a) of Figure 5, the connecting surface 55a is bent convexly toward the upper side when viewed from the extension direction.

The wire running groove 56 (56a) is defined by the wall surface of the recessed portion 53a defining the heating block 52a and the connecting surface 55a of the connecting portion 54a. That is, in the present embodiment, the entire wire running groove 56 (56a) is defined by the heating portion 50. The wire running groove 56 (56a) is open to the lower side. That is, the end of the lower side of the wire running groove 56 (56a) (equivalent to the "side in the second direction" of the present invention) is an open end.

In addition, the components used for heating the wire Yb are explained. The heating block 52b is arranged on the other side of the heat source 51 in the longitudinal direction of the body (the right side of the paper in Figure 4). The heating block 52b is in contact with the heat source 51. The heating block 52b is formed with a recess 53b having the same shape as the recess 53a. A connecting portion 54b having the same structure as the connecting portion 54a is accommodated in the recess 53b. The connecting portion 54b has a connecting surface 55b having the same shape as the connecting surface 55a. The wire running groove 56b is defined by the wall surface of the recess 53b that defines the heating block 52b and the connecting surface 55b of the connecting portion 54b. Further details are omitted.

The wire Y (Ya, Yb) fed into the first heating device 13 travels in the wire travel groove 56 (56a, 56b) while being in contact with the wire connection surface 55 (55a, 55b). As a result, the wire Y (Ya, Yb) receives heat from the heating block 52 (52a, 52b) via the wire connection surface 55 (55a, 55b) and is heated. By appropriately setting the type of wire Y, the grade (thickness) of the wire Y, the travel speed of the wire Y, and the heating temperature, the temperature of the wire Y can be made the optimal processing temperature.

The heat insulating blocks 71, 72, 73 are made of, for example, gypsum boards, etc. The heat insulating blocks 71, 72, 73 extend along the extension direction. The heat insulating blocks 71, 72, 73 are arranged along the longitudinal direction of the machine body (corresponding to the "third direction" of the present invention) between the heating unit 50 and the lower wall 61a of the heat preservation box 60 described later.

The heat insulating blocks 71, 72, and 73 are arranged in sequence from one side to the other side in the longitudinal direction of the machine body. As shown in FIG6, the gap formed between the heat insulating blocks 71, 72, and 73 functions as a passage for passing the wire Y when the wire Y is inserted into the wire running groove 56 and the wire Y is set in the first heating device 13. The gap between the adjacent heat insulating blocks 71 and 72 constitutes a passage when the wire Ya is inserted into the wire running groove 56a. The gap between the adjacent heat insulating blocks 72 and 73 constitutes a passage when the wire Yb is inserted into the wire running groove 56b.

As shown in FIG. 4 and FIG. 6, the central heat insulating block 72 among the three heat insulating blocks 71, 72, and 73 arranged in the longitudinal direction of the body has a roughly trapezoidal shape extending from the top toward the bottom (toward the direction away from the wire running groove 56) when viewed from the extension direction. The surfaces 72a and 72b on both sides of the longitudinal direction of the body in the heat insulating block 72 are inclined relative to an imaginary vertical plane orthogonal to the longitudinal direction of the body. The surface 72a on one side of the longitudinal direction of the body in the heat insulating block 72 (the left side of the paper in FIG. 4) is inclined in such a manner that the upper end is located closer to the other side of the longitudinal direction of the body than the lower end. The surface 72b on the other side of the longitudinal direction of the body in the heat insulating block 72 (the right side of the paper in FIG. 4) is inclined in such a manner that the upper end is located closer to the one side of the longitudinal direction of the body than the lower end.

The surface 71a on the other side of the machine body length direction (the right side of the paper in FIG. 4 ) of the heat insulating block 71 is approximately parallel to the surface 72a on one side of the machine body length direction (the left side of the paper in FIG. 4 ) of the heat insulating block 72. The surface 73a on one side of the machine body length direction (the left side of the paper in FIG. 4 ) of the heat insulating block 73 is approximately parallel to the surface 72b on the other side of the machine body length direction (the right side of the paper in FIG. 4 ) of the heat insulating block 72.

As shown in Fig. 7 and Fig. 9, the closing member 79 is mounted on both sides of the extension direction of the central heat insulating block 72. The closing member 79 is a plate-shaped member and is mounted on the heat insulating block 72 in a posture where its thickness direction is parallel to the extension direction.

As shown in FIG8 , the thermal insulation box 60 mainly includes a storage body 61, a door 62, side panels 63a, 63b, and a center panel 64. An inlet and outlet 66 for the wire to enter the thermal insulation box 60 is formed in the thermal insulation box 60. The inlet and outlet 66 is provided in the thermal insulation box 60 at locations that are opposite to the two ends of the wire running groove 56 in the extension direction. The running wire Y passes through the inlet and outlet 66. That is, the inlet and outlet 66 is equivalent to the "wire running hole" of the present invention. In addition, a slit 67 is formed in the thermal insulation box 60, one end of which is connected to the inlet and outlet 66 and the other end is open.

The storage body 61 is a hollow component having a roughly rectangular shape with the extension direction as the length direction. The storage body 61 stores the heating unit 50 and the insulation blocks 71, 72, 73. As shown in FIG4, an opening 68 is formed in the lower wall 61a of the storage body 61. The lower wall 61a is located on the side opposite to the wire running groove 56 with respect to the insulation blocks 71, 72, 73. That is, the lower wall 61a is equivalent to the "opening wall" of the present invention. The opening 68 is formed in the portion of the lower wall 61a opposite to the insulation blocks 71, 72, 73. The opening 68 is formed over the entire length of the storage body 61 in the extension direction.

As shown in Fig. 7 and Fig. 8, openings 69 are formed in the side walls 61b at both ends of the extension direction of the storage body 61. The opening 69 is formed in the center of the side wall 61b in the longitudinal direction of the body. The lower side of the opening 69 is open. The side walls 61b are located on both sides of the extension direction of the heat insulating blocks 71, 72, 73.

The door 62 is a plate-shaped component extending along the extension direction. The door 62 is mounted on the lower surface of the lower wall 61a of the storage body 61. The door 62 can swing around the axis 62a extending along the extension direction. The axis 62a is mounted on the end of the door 62 on the other side of the length direction of the body (the right side of the paper in Figure 4). As shown in Figure 4, when the door 62 is in the closed position, the opening 68 of the storage body 61 is closed by the door 62. The door 62 in the closed position swings downward (counterclockwise in Figures 4 and 6) around the axis 62a, and when it is in the open position shown in Figure 6, the opening 68 of the storage body 61 is opened. That is, the door 62 can move between a closed position (see FIG. 4 ) for closing the opening 68 of the storage body 61 and an open position (see FIG. 6 ) for opening the opening 68 .

As shown in Fig. 8, a spring 65 having one end fixed to the storage body 61 is fixed to the door 62. The door 62 is urged from the open position to the closed position by the spring 65. The door 62 in the closed position is urged upward by the spring 65.

The three plates consisting of the side plates 63a, 63b and the central plate 64 are detachably mounted on the outer surface of the side wall 61b at both ends of the extension direction in the storage body 61. The side plates 63a, 63b and the central plate 64 are equivalent to the "opposite wall" of the present invention. The central plate 64 is respectively arranged on both sides of the extension direction of the heat insulation block 72. That is, the central plate 64 is equivalent to the "end member" of the present invention.

The side panel 63a is mounted on a portion of the side wall 61b of the storage body 61 that is located on one side of the opening 69 in the longitudinal direction of the body (the left side of the paper in FIG. 8 ). The side panel 63b is mounted on a portion of the side wall 61b of the storage body 61 that is located on the other side of the opening 69 in the longitudinal direction of the body (the right side of the paper in FIG. 8 ). Both the side panels 63a and 63b are removably mounted relative to the storage body 61 by screws or the like. Both the side panels 63a and 63b are configured to partially block the opening 69. The side panels 63a and 63b are separately configured in the longitudinal direction of the body. The central panel 64 is removably mounted on a portion of the upper side of the opening 69 in the side wall 61b of the storage body 61 by bolts 82. The central plate 64 is arranged so as to partially block the opening 69. The central plate 64 is arranged between the side plates 63a and 63b in the longitudinal direction of the machine body. The central plate 64 is arranged to be separated from the side plates 63a and 63b in the longitudinal direction of the machine body.

The inlet and outlet 66 (66a, 66b) of the wire Y (Ya, Yb) to the heat preservation 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. The inlet and outlet 66a formed by the gap between the side plate 63a and the central plate 64 is formed at a portion opposite to the end of the wire running groove 56a in the extending direction. The inlet and outlet 66b formed by the gap between the side plate 63b and the central plate 64 is formed at a portion opposite to the end of the wire running groove 56b in the extending direction.

The slits 67 (67a, 67b) are 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. Both slits 67a and 67b extend in a plane perpendicular to the extension direction. The slits 67a and 67b are inclined relative to the up-down direction. The slit 67a is inclined in such a way that the upper end is located on the other side of the length direction of the body than the lower end (the right side of the paper of FIG. 8). The slit 67b is inclined in such a way that the upper end is located on the side of the length direction of the body than the lower end (the left side of the paper of FIG. 8). The upper end of the slit 67a is connected to the entrance and exit 66a and the lower end is open. The upper end of the slit 67b is connected to the entrance 66b and the lower end is open.

In the extending direction, a slit 67a formed by the gap between the side plate 63a and the central plate 64 is formed at a position opposite to the gap between the heat insulating blocks 71 and 72. In the extending direction, a slit 67b formed by the gap between the side plate 63b and the central plate 64 is formed at a position opposite to the gap between the heat insulating blocks 72 and 73.

Two holes 64a for inserting bolts 82 are formed in the central plate 64. The two holes 64a are arranged along the length direction of the body. Each hole 64a has an elongated elliptical shape in the length direction of the body. Thus, by loosely inserting the bolts 82 into each hole 64a, the central plate 64 can slide in the length direction of the body. The central plate 64 slides in the length direction of the body while its position in the up-down direction is fixed relative to the storage body 61. That is, the central plate 64 is equivalent to the "fixing member" of the present invention.

An opening 64b extending in the vertical direction is formed in the portion of the central plate 64 that blocks the opening 69. A convex portion 78 of the closing member 79 described later is disposed in the opening 64b. The opening 64b guides the vertical movement of the closing member 79. That is, the opening 64b corresponds to the "guide groove" of the present invention.

Next, the function and operation of the closing member 79 will be further described with reference to Fig. 10 and Fig. 11. Fig. 10 is a diagram for describing the positional relationship between the gaps between the adjacent heat insulating blocks 71, 72, 73 and the closing member 79. Fig. 11 is a diagram for describing the positional relationship between the slit 67 formed in the heat preservation box 60 and the closing member 79. In Fig. 10 and Fig. 11, the closing member 79 is indicated by a dotted line.

As shown in Figures 9 to 11, the closing member 79 has a roughly trapezoidal shape extending from the top to the bottom when viewed from the extension direction. The closing member 79 has edge portions 79a and 79b that are inclined relative to the up-down direction. The edge portion 79a is inclined in a manner such that the upper end is located on the other side of the body length direction than the lower end (the right side of the paper of Figures 10 and 11). The edge portion 79a extends in a direction parallel to the extension direction of the slit 67a formed in the heat preservation box 60. The edge portion 79b is inclined in a manner such that the upper end is located on the side of the body length direction than the lower end (the left side of the paper of Figures 10 and 11). The edge portion 79b extends in a direction parallel to the extension direction of the slit 67b formed in the heat preservation box 60.

The closing member 79 is movable up and down. By moving up and down, the closing member 79 can move between a closed position shown in FIG. 10 (a) and FIG. 11 (a) and a retracted position shown in FIG. 10 (b) and FIG. 11 (b).

As shown in FIG. 10( a ), when the closing member 79 is in the closing position, the closing member 79 is located opposite to the entire area of the gap between the heat insulating blocks 71, 72, and 73 as viewed from the extension direction. When the closing member 79 is in the closing position, the edge 79a of the closing member 79 is opposite to the gap between the heat insulating blocks 71 and 72 in the extension direction. In addition, when the closing member 79 is in the closing position, the edge 79b of the closing member 79 is opposite to the gap between the heat insulating blocks 72 and 73 in the extension direction.

As shown in FIG. 10( b ), when the closing member 79 is in the retracted position, the closing member 79 is located at a position that is not opposite to at least a portion of the longitudinal direction of the machine body in the gap between the heat insulating blocks 71, 72, and 73 in the extension direction. When the closing member 79 is in the retracted position, the closing member 79 is opposite to the heat insulating block 72 in the extension direction, but not to the heat insulating blocks 71 and 73. In the present embodiment, when the closing member 79 is in the retracted position, the closing member 79 is opposite to a portion of the longitudinal direction of the machine body in the gap between the heat insulating blocks 71, 72, and 73 in the extension direction. When the closing member 79 is located at the retracted position, the closing member 79 may be located at a position that is not opposite to the entire area in the length direction of the body in the gap between the heat insulating blocks 71, 72, and 73 in the extension direction.

As shown in (a) of FIG. 11 , when the closing member 79 is in the closing position, the edge portions 79a and 79b close the slits 67a and 67b. More specifically, the edge portion 79a closes the slit 67a, and the edge portion 79b closes the slit 67b. The closing member 79 closes the slits 67a and 67b except for the lower end portions. In addition, when the closing member 79 is in the closing position, the closing member 79 blocks a portion of the entrance and exit 66 by leaving an area through which the thread Y can pass when viewed from the extension direction. Furthermore, as shown in FIG. 11( b ), the closing member 79 does not close the slits 67 a and 67 b when it is located at the retracted position.

As shown in Fig. 7 and Fig. 9, a convex portion 78 is formed on the surface of the closing member 79 on the side opposite to the side of the heat insulating block 72 in the extension direction. The convex portion 78 extends in the up-down direction. As shown in Fig. 8, the convex portion 78 is arranged in the opening 64b of the central plate 64. At this time, the closing member 79 contacts the central plate 64 in the extension direction. That is, the surface of the closing member 79 on the side opposite to the side of the heat insulating block 72 in the extension direction contacts the surface of the central plate 64 on the side of the heat insulating block 72 in the extension direction.

The side surface 78a of the protrusion 78 disposed in the opening 64b contacts the edge portion of the opening 64b extending in the vertical direction. By sliding the central plate 64 in the longitudinal direction of the machine body, the heat insulating block 72 moves in the longitudinal direction of the machine body together with the closing member 79 formed with the protrusion 78. Therefore, by sliding the central plate 64 in the longitudinal direction of the machine body, the position of the heat insulating block 72 in the longitudinal direction of the machine body can be adjusted. The protrusion 78 can slide up and down in the opening 64b.

As shown in FIG4 , when the door 62 is in the closed position, the heat insulating block 72 is pressed upward by the door 62. As shown in FIG6 , by the door 62 moving from the closed position to the open position, the heat insulating block 72 is not pressed upward. As a result, the heat insulating block 72 moves downward together with the closing member 79 due to its own weight. Then, by the door 62 moving from the open position to the closed position, the heat insulating block 72 is pressed upward again by the door 62. As a result, the heat insulating block 72 moves upward together with the closing member 79.

The heat insulating block 72 and the door 62 move in conjunction with each other and move up and down relative to the center plate 64. When the heat insulating block 72 moves up and down, the protrusion 78 slides up and down in the opening 64b formed in the center plate 64. The opening 64b guides the heat insulating block 72 and the closing member 79 to move up and down.

When the door 62 is in the closed position, as shown in FIG. 10 (a), the closing member 79 is in the closed position. At this time, as shown in FIG. 11 (a), the closing member 79 closes the slits 67a, 67b by the edge portions 79a, 79b. When the door 62 is in the open position, as shown in FIG. 10 (b), the closing member 79 is in the retreat position. At this time, as shown in FIG. 11 (b), the closing member 79 does not close the slits 67a, 67b. In this way, the closing member 79 can move between the closed position and the retreat position in conjunction with the movement of the door 62.

4, when the door 62 is in the closed position (when the closing member 79 is in the closed position), the insulating block 72 contacts the adjacent insulating blocks 71 and 73. Specifically, the surface 72a of the insulating block 72 contacts the surface 71a of the insulating block 71. The surface 72b of the insulating block 72 contacts the surface 73a of the insulating block 73. Even when the heat insulating block 72 is in contact with the adjacent heat insulating blocks 71 and 73, there is a small gap between the adjacent heat insulating blocks 71, 72, and 73 due to the parallelism and planarity errors of the surface 71a of the heat insulating block 71 and the surface 72a of the heat insulating block 72, and the surface 72b of the heat insulating block 72 and the surface 73a of the heat insulating block 73. However, in this case, the gap between the adjacent heat insulating blocks 71, 72, and 73 can be suppressed to a minimum.

6, when the door 62 is in the open position (the closing member 79 is in the retreat position), the heat insulating block 72 does not contact the adjacent heat insulating blocks 71, 73. At this time, a gap is formed between the adjacent heat insulating blocks 71, 72, 73, and the gap has a width that fully functions as a passage for the wire Y to pass through when the wire Y is inserted into the wire running groove 56.

(Setting sequence of the thread Y) Next, the setting sequence of the thread Y to the first heating device 13 is described. First, the operator moves the door 62 from the closed position to the open position. As a result, as shown in FIG6 , the opening 68 of the storage body 61 is opened. By placing the door 62 in the open position, the heat insulating block 72 moves downward together with the closing member 79. At this time, the closing member 79 moves from the closed position to the retreat position. That is, as shown in FIG11 (b), the slits 67a, 67b formed in the heat preservation box 60 are in a state of not being closed by the closing member 79. In addition, at this time, as shown in FIG6 , a gap is formed between adjacent heat-insulating blocks 71, 72, and 73 to function as a passage for the wire Y.

Next, the operator pulls the wire Y disposed below the heat preservation box 60 upward and inserts the wire Y into the heat preservation box 60 through the opening 68. At this time, the wire Y passes through the slit 67 formed in the heat preservation box 60 and the gaps formed between the adjacent heat insulation blocks 71, 72, 73, and is inserted into the wire running groove 56 from the open end (lower end) of the wire running groove 56. In addition, at this time, the closing member 79 is located in the retreat position, which is located at a position that does not close the slit 67. Therefore, the closing member 79 does not block the running path of the wire Y passing through the slit 67.

Finally, the operator moves the door 62 from the open position to the closed position. As a result, as shown in FIG4 , the opening 68 of the storage body 61 is closed. By placing the door 62 in the closed position, the insulation block 72 moves upward together with the closing component 79. At this time, the closing component 79 moves from the retreat position to the closed position. That is, as shown in FIG11 (a), the slits 67a, 67b formed in the heat preservation box 60 are in a state of being closed by the closing component 79. In addition, at this time, as shown in FIG4 , the insulation block 72 is in contact with the adjacent insulation blocks 71, 73.

In the first heating device 13, after the wire Y is arranged in the above order, the wire Y is heated. That is, when the wire Y is heated in the first heating device 13, the closing member 79 is located at a position opposite to the entire area of the gap between the heat insulating blocks 71, 72, 73 in the extending direction. In addition, at this time, the closing member 79 closes the slits 67a, 67b formed in the heat preservation box 60. Furthermore, at this time, the gap between the adjacent heat insulating blocks 71, 72, 73 is minimized.

(Features of the embodiment) As described above, the first heating device 13 of the embodiment comprises: a heating portion 50, which is formed with a wire running groove 56 extending along the extension direction, and heats the wire Y running in the wire running groove 56; heat insulating blocks 71, 72, 73, which extend along the extension direction and are arranged in the longitudinal direction of the body at a position opposite to the lower end, i.e., the open end, of the wire running groove 56; and a closing member 79, side plates 63a, 63b, and a central plate 64 arranged on the sides of the extension direction of the heat insulating blocks 71, 72, 73. The gap between adjacent heat insulating blocks 71, 72, 73 constitutes a passage for inserting the wire Y into the wire running groove 56. The gap between the side plates 63a, 63b and the central plate 64 forms a slit 67 through which the wire Y passes when the wire Y is inserted into the wire running groove 5. The slit 67 is formed in a portion opposite to the passage formed between the adjacent heat insulating blocks 71, 72, 73 in the extension direction. The closing member 79 can move between a closed position for closing the slit 67 and a retreat position for not closing the slit 67.

According to the above configuration, by placing the closing member 79 in the closing position, it is possible to suppress the air in the gap (passage) between the adjacent heat insulating blocks 71, 72, 73 that is heated when the wire Y is heated from flowing out of the slit 67. Therefore, it is possible to reduce power consumption. In addition, by placing the closing member 79 in the retreat position, when the wire Y is inserted into the wire running groove 56 through the gap (passage) between the adjacent heat insulating blocks 71, 72, 73, the running path of the wire Y will not be blocked by the closing member 79.

Furthermore, in the first heating device 13 of the present embodiment, the closing member 79, the side plates 63a, 63b, and the center plate 64 are respectively arranged on both sides of the extending direction of the heat insulating blocks 71, 72, 73. Therefore, the closing member 79 can prevent the heated air from flowing out through the slit 67 from both ends of the passage (the gap between the adjacent heat insulating blocks 71, 72, 73) in the extending direction when the wire Y is heated. Therefore, the power consumption can be reliably reduced.

Furthermore, in the first heating device 13 of the present embodiment, when the closing member 79 is in the closing position, it is opposite to the entire area of the gap between the heat insulating blocks 71, 72, 73 as viewed from the extension direction. Therefore, the closing member 79 can close the entire area of the gap (passage) between the heat insulating blocks 71, 72, 73 in the longitudinal direction of the machine body and in the vertical direction. Therefore, it is possible to reliably suppress the outflow of air from the gap, and it is possible to further reduce power consumption.

Furthermore, in the first heating device 13 of the present embodiment, an opening 68 is formed in a portion of the lower wall 61a of the heat preservation box 60 that accommodates the heating unit 50 and the heat insulation blocks 71, 72, 73, which is opposite to the heat insulation blocks 71, 72, 73. The door 62 of the heat preservation box 60 can move between a closed position that closes the opening 68 and an open position that opens the opening 68. The closing member 79 can move in conjunction with the movement of the door 62. When the door 62 is in the open position, the closing member 79 is in the retracted position, and when the door 62 is in the closed position, the closing member 79 is in the closed position.

According to the above configuration, the door 62 is in the open position, the wire Y can be inserted into the heat preservation box 60 through the opening 68, and the wire Y can be inserted into the wire running groove 56 from the open end of the wire running groove 56. At this time, since the closing member 79 is in the retreat position that does not close the slit 67, the wire Y can pass through the slit 67. Therefore, when the wire Y is set in the first heating device 13, the running path of the wire Y is not blocked by the closing member 79. In addition, by making the door 62 in the closed position, the closing member 79 is in the closed position that closes the slit 67. Therefore, when the wire Y is heated, the heated air in the gap (passage) between the adjacent heat insulating blocks 71, 72, 73 can be prevented from flowing out through the slit 67 by the closing member 79, thereby reducing power consumption.

Furthermore, in the first heating device 13 of the present embodiment, the closing member 79 is moved from the retreat position to the closed position by being pressed upward by the door 62. Therefore, the closing member 79 is moved from the closed position to the retreat position by its own weight without being pressed upward by the door 62. Therefore, a mechanism for moving the closing member 79 from the closed position to the retreat position is not required.

In addition, in the first heating device 13 of the present embodiment, an inlet and outlet 66 for the traveling wire Y to pass through is formed by the gap between the side plates 63a, 63b and the central plate 64. The inlet and outlet 66 is formed in a portion opposite to the wire running groove 56 in the extension direction. When the closing member 79 is located at the closing position, a region through which the wire Y can pass is left in the inlet and outlet 66 and a portion of the inlet and outlet 66 is blocked. Therefore, it is possible to suppress the heated air from flowing out from the open end of the wire running groove 56 in the extension direction when the wire Y is heated. Therefore, it is possible to further reduce power consumption.

Furthermore, in the first heating device 13 of the present embodiment, a central plate 64 is provided whose position is fixed in the vertical direction (moving direction of the closing member 79). An opening 64b extending in the vertical direction is formed in the central plate 64. A convex portion 78 capable of being arranged in the opening 64b formed in the central plate 64 is formed in the closing member 79. Therefore, the movement of the closing member 79 in the vertical direction can be guided by the opening 64b.

Furthermore, in the first heating device 13 of the present embodiment, the central insulating block 72 of the three insulating blocks 71, 72, and 73 arranged in the longitudinal direction of the machine body is provided with a central plate 64 on both sides of the extension direction. The closing member 79 is mounted on the insulating block 72. Furthermore, by the insulating block 72 moving up and down relative to the central plate 64, the closing member 79 moves between the closing position and the retreat position. Therefore, by moving the insulating block 72 relative to the central plate 64, the closing member 79 can be moved between the closing position and the retreat position.

Furthermore, in the first heating device 13 of the present embodiment, the central plate 64 can adjust the position in the longitudinal direction of the body. For example, the following structure is considered: the slit 67 is closed by fixing the position of the heat insulating block 72 in the vertical direction and moving the central plate 64 in the vertical direction. That is, in this case, the central plate 64 can move in both the longitudinal direction of the body and the vertical direction. In the case where the central plate 64 can move in directions other than the longitudinal direction of the body, the accuracy of the position adjustment of the central plate 64 in the longitudinal direction of the body may be reduced. In the present structure, since the position of the central plate 64 in the vertical direction is fixed, the position adjustment in the longitudinal direction of the body can be performed with high accuracy using the central plate 64.

In addition, in the first heating device 13 of the present embodiment, the closing member 79 moves downward from the closing position to the retreat position. The heat insulating block 72 has a trapezoidal shape extending from the top to the bottom when viewed from the extension direction. Therefore, when the closing member 79 is in the retreat position and the thread is set in the first heating device 13, it is difficult to hook the thread Y on the upper end of the heat insulating block 72.

Furthermore, in the first heating device 13 of the present embodiment, when the closing member 79 is in the closing position, the heat insulating block 72 is in contact with the adjacent heat insulating blocks 71 and 73. Therefore, when the wire Y is heated, the gap between the adjacent heat insulating blocks 71, 72, and 73 can be minimized, and the space for heat release from the heating unit 50 can be reduced. Therefore, the power consumption can be further reduced.

In the first heating device 13 of the present embodiment, the slits 67a and 67b extend in a direction inclined relative to the vertical direction. Furthermore, the closing member 79 has edge portions 79a and 79b extending in a direction parallel to the extending direction of the slits 67a and 67b. Therefore, compared with the case where the slits 67a and 67b extend in the moving direction (vertical direction) of the closing member 79, the moving distance between the closing position and the retreat position of the closing member 79 can be shortened.

Furthermore, in the first heating device 13 of the present embodiment, the side panels 63a, 63b and the central panel 64 are detachably mounted on the storage body 61 that stores the heating portion 50 and the heat insulating blocks 71, 72, 73. In this configuration, by placing the closing member 79 close to the side panels 63a, 63b and the central panel 64, even if the side panels 63a, 63b and the central panel 64 are damaged due to friction between the closing member 79 and the side panels 63a, 63b and the central panel 64, the side panels 63a, 63b and the central panel 64 can be removed from the storage body 61 and replaced. Therefore, the closing member 79 can be arranged close to the side plates 63a, 63b and the center plate 64, and the slit 67 can be closed reliably.

Furthermore, in the first heating device 13 of the present embodiment, the entirety of the yarn running groove 56 is defined by the heating portion 50. Therefore, the yarn Y can be heated efficiently.

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

In the above-mentioned embodiment, the case where the closing member 79 closes the lower end of the slit 67 when the closing member 79 is in the closing position is described, but the present invention is not limited thereto. It is sufficient that the closing member 79 closes at least a portion of the slit 67 when the closing member 79 is in the closing position. The closing member 79 may also close the entire area of the slit 67 when the closing member 79 is in the closing position.

Furthermore, in the above-mentioned embodiment, the closing member 79 is respectively arranged on both sides of the extending direction of the heat insulating blocks 71, 72, 73, but it is not limited to this. That is, the closing member 79 only needs to be arranged on at least one side of the extending direction of the heat insulating blocks 71, 72, 73.

In addition, in the above-mentioned embodiment, the side plates 63a, 63b and the central plate 64 are respectively arranged on both sides of the extension direction of the heat insulating blocks 71, 72, 73, but the present invention is not limited thereto. That is, the side plates 63a, 63b and the central plate 64 only need to be arranged on at least one side of the extension direction of the heat insulating blocks 71, 72, 73.

Furthermore, in the above-mentioned embodiment, when the closing member 79 is in the closing position, the closing member 79 is opposite to the entire area of the gap between the heat insulating blocks 71, 72 (heat insulating blocks 72, 73) as viewed from the extension direction, but the present invention is not limited thereto. When the closing member 79 is in the closing position, the closing member 79 may be opposite to only a part of the gap between the heat insulating blocks 71, 72 (heat insulating blocks 72, 73) as viewed from the extension direction.

Furthermore, in the above-mentioned embodiment, the case where the closing member 79 blocks a part of the inlet and outlet 66 when the closing member 79 is in the closing position is described, but the present invention is not limited thereto. When the closing member 79 is in the closing position, the closing member 79 may not block a part of the inlet and outlet 66.

In addition, in the above-mentioned embodiment, the inlet and outlet 66a, 66b and the slits 67a, 67b of the wire facing the heat preservation box 60 are explained as being formed by the gaps between three plates (side plates 63a, 63b, and central plate 64) detachably mounted on the storage body 61, but the present invention is not limited thereto. For example, these inlet and outlet 66a, 66b and the slits 67a, 67b may also be formed by openings formed in one plate (opposite wall) detachably mounted on the storage body 61. Furthermore, the inlet and outlet 66a, 66b and the slits 67a, 67b may also be formed by openings formed in the storage body 61 itself of the heat preservation box 60.

In addition, in the above-mentioned embodiment, the closing member 79 is described as being movable in conjunction with the movement of the door 62, but the present invention is not limited thereto. For example, a gripping portion may be provided on the closing member 79, and the operator may grip the gripping portion to move the closing member 79.

Furthermore, in the above-mentioned embodiment, the closing member 79 is described as being moved from the retreat position to the closed position by being pressed upward by the door 62, but the present invention is not limited thereto. For example, the closing member 79 may be moved from the retreat position to the closed position by being pressed downward. In this case, it is preferred to have a force-applying mechanism or the like for returning from the closed position to the retreat position. In addition, it is also possible to have no force-applying mechanism or the like, and the operator may manually return from the closed position to the retreat position.

Furthermore, in the above-mentioned embodiment, the convex portion 78 formed on the closing member 79 is arranged on the opening 64b formed on the central plate 64, and the opening 64b functions as a guide groove for guiding the movement of the closing member 79, but the present invention is not limited thereto. For example, the guide groove may be formed by a concave portion instead of the opening. In addition, the guide groove may be formed on the closing member 79, and a convex portion that can be arranged in the guide groove may be formed on the central plate 64.

Furthermore, in the above-mentioned embodiment, the case where two wire running grooves 56 are provided in the heating part 50 is described, but the number of wire running grooves 56 provided in the heating part 50 is not limited thereto. The number of wire running grooves 56 may also be one. The number of wire running grooves 56 may also be three or more.

Furthermore, in the above embodiment, the case where three heat insulating blocks 71, 72, 73 are provided is described, but the number of heat insulating blocks 71, 72, 73 is not limited thereto. At least two heat insulating blocks 71, 72, 73 are sufficient.

Furthermore, in the above-mentioned embodiment, the closing member 79 is mounted on the heat insulating block 72, and the closing member 79 moves between the closed position and the retreat position by the heat insulating block 72 moving up and down relative to the central plate 64, but the present invention is not limited thereto. For example, the position of the heat insulating block 72 in the up and down direction may be fixed, and the closing member 79 may be mounted on the end members that are movable up and down and are respectively arranged on both sides of the extending direction of the heat insulating block 72. Such end members may also be mounted so as to be movable up and down relative to the storage body 61, for example.

In addition, in the above-mentioned embodiment, the central plate 64 is described as being able to adjust the position in the longitudinal direction of the machine body, but the present invention is not limited thereto. That is, the central plate 64 may not be movable in the longitudinal direction of the machine body.

Furthermore, in the above-mentioned embodiment, the heat insulating block 72 is described as having a trapezoidal shape extending from the top to the bottom when viewed from the extension direction, but the present invention is not limited thereto. For example, the heat insulating block 72 may also be in a rectangular shape when viewed from the extension direction.

Furthermore, in the above-mentioned embodiment, the heat insulating block 72 is described as being in contact with the adjacent heat insulating blocks 71 and 73 when the closing member 79 is in the closing position, but the present invention is not limited thereto. That is, the heat insulating block 72 may be separated from the adjacent heat insulating blocks 71 and 73 when the closing member 79 is in the closing position.

In addition, in the above-mentioned embodiment, the slits 67a and 67b extend in a direction inclined relative to the vertical direction. Furthermore, the case where the closing member 79 has the edge portions 79a and 79b extending in a direction parallel to the extending direction of the slits 67a and 67b is described, but it is not limited to this. For example, the slits 67a and 67b may also extend in the vertical direction. In this case, if the distance between the closing position and the retreat position of the closing member 79 is considered to be shortened, it is preferable that the closing member 79 can move in the length direction of the body.

Furthermore, in the above-mentioned embodiment, the case where the closing member 79 is mounted on the heat insulating block 72 is described, but the present invention is not limited thereto. Similar to the heat insulating block 72, by mounting the closing member 79 on a member that can move up and down relative to the storage body 61 of the heat preservation box 60, the closing member 79 can be moved in conjunction with the movement of the door 62. In addition, the closing member 79 can also be directly mounted on the storage body 61. In addition, for example, the closing member 79 can also be mounted on the door 62. In this case, the closing member 79 can move together with the door 62 and move between the closed position and the retreat position.

In addition, in the above-mentioned embodiment, the case where the entire wire running groove 56 is defined by the heating unit 50 is described, but the present invention is not limited thereto. The wire running groove 56 only needs to be defined at least in part by the heating unit 50. That is, for example, the bottom surface of the wire running groove 56 may be defined by the heating unit 50, and the side surface of the wire running groove 56 may be defined by a component other than the heating unit 50.

In addition, in the above-mentioned embodiment, the case where the wire Y receives heat from the heating block 52 through the wire connection surface 55 by contacting with the wire connection surface 55 is described, but it is not limited to this. That is, for example, as shown in (a) and (b) of Figure 12, in a heating unit 150 of a modified example of the above-mentioned embodiment, a plurality of wire guides 154 are arranged along the extension direction in the wire running groove 156. More specifically, a plurality of wire guides 154a are arranged in the wire running groove 156a. A plurality of wire guides 154b are arranged in the wire running groove 156b. The wire Y (Ya, Yb) guided by the wire guide 154 (154a, 154b) and running in the wire running groove 156 (156a, 156b) receives heat from the air heated by the heating block 152 (152a, 152b). That is, the heating section 150 is a non-contact method for heating the wire Y by heated air. In the non-contact heating section 150, the heating temperature is relatively high. Specifically, the heating temperature of the heating section 50 of the above-mentioned embodiment is about 350°C, but the heating temperature of the heating section 150 of this variant is about 600°C. Therefore, in the non-contact heating unit 150, the air heated when the wire Y is heated becomes relatively high. In this configuration, by suppressing the air heated when the wire Y is heated from flowing out from both ends of the extension direction of the gap between the adjacent insulation blocks 71, 72, 73, power consumption can be effectively reduced.

Furthermore, in the above-mentioned embodiment, the heating unit 50 is described as having the heat source 51 and the heating block 52 heated by the heat source 51, but the present invention is not limited thereto. For example, the heating unit may be a structure in which a heat medium such as a heat carrier circulates inside a hollow member.

Furthermore, in the above embodiment, the case where the yarn heating device of the present invention is applied to the false twisting machine 1 that performs false twisting on the yarn Y has been described, but the invention is not limited to this. The yarn heating device of the present invention is not limited to false twist processing, and can be applied to processing machines that perform various processing such as doubling processing on yarns made of synthetic fibers.

13: First heating device (wire heating device) 50: Heating part 56: Wire running groove 61: Storage body 61a: Lower wall (opening wall) 61b: Side wall 62: Door 63a, 63b: Side plate (opposite wall) 64: Central plate (fixing member, end member, opposite wall) 64b: Opening (guide groove) 66: Inlet and outlet (wire running hole) 67: Slit 68: Opening 71, 72, 73: Insulation block 78: Protrusion 79: Closing member Y: Wire

[Fig. 1] is a side view of a false twisting machine according to one embodiment of the present invention. [Fig. 2] is a schematic diagram showing the false twisting machine unfolded along the path of the yarn. [Fig. 3] is a diagram showing the first heating device. [Fig. 4] is a cross-sectional view taken along line IV-IV of the first heating device shown in Fig. 3. [Fig. [Fig. 5] (a) is an enlarged view of the heating unit shown in Fig. 4, and (b) is a cross-sectional view along the Vb-Vb line of (a). [Fig. 6] A diagram showing a state in which the door of the first heating device shown in Fig. 4 is in an open position. [Fig. 7] is a cross-sectional view taken along line VII-VII of the first heating device shown in Fig. 4. [Fig. [Fig. 8] is a view of the first heating device shown in Fig. 3 when viewed from the extending direction. [Figure 9] is an exploded perspective view of the central plate, the central heat insulation block, and the closing component. [Figure 10] is a diagram for explaining the positional relationship between the gaps between adjacent heat insulation blocks and the closing component. (a ) indicates a situation where the closing member is in the closing position, and (b) indicates a situation where the closing member is in the retreat position. [Figure 11] is a diagram for explaining the positional relationship between the slit formed in the incubator and the closing member. (a ) indicates that the closing part is in the closed position, and (b) indicates that the closing part is in the retracted position. [Fig. 12] is a diagram showing a heating portion of a modified example of the embodiment, (a) is a cross-sectional view cut along a plane perpendicular to the extension direction, (b) is a cross-sectional view along the XIIb-XIIb line of (a) Cross-sectional view.

13: The first heating device (thread heating device)

63a, 63b: Side panels (opposite walls)

64: Central plate (fixed parts, end parts, opposite wall)

66,66a,66b: entrance and exit (thread passage hole)

67,67a,67b: Narrow seam

79: Closed components

79a,79b: Edges

Claims (15)

A wire heating device, forming a wire running groove for running wires, characterized in that it comprises: a heating portion extending along the first direction in which the wire running groove extends, heating the wire running in the wire running groove; at least two heat insulating blocks extending along the first direction, arranged in a third direction orthogonal to both the first direction and the second direction at positions opposite to the open ends of one side of the second direction orthogonal to the first direction of the wire running groove; a closing member arranged on at least one side of the at least two heat insulating blocks in the first direction; and an opposing wall arranged on at least one side of the at least two heat insulating blocks in the first direction, The gap between the adjacent heat insulating blocks constitutes a passage for inserting the wire into the wire running groove. A slit is formed in the portion of the opposing wall opposite to the passage in the first direction, and the slit allows the wire to pass through when the wire is inserted into the wire running groove through the passage. The closing member is movable between a closing position for closing at least a portion of the slit and a retreat position for not closing the slit. The wire heating device as described in claim 1, wherein the closing member and the opposing wall are respectively arranged on both sides of the at least two heat insulating blocks in the first direction. A wire heating device as described in claim 1 or 2, wherein, when the closing member is in the closing position, it is opposite to the entire area of the passage when viewed from the first direction. A wire heating device as described in any one of claims 1 to 3, wherein, the wire heating device comprises: an opening wall, which is arranged on the side opposite to the wire running groove relative to the at least two heat insulating blocks, and has an opening formed in a portion opposite to the at least two heat insulating blocks; and a door, which can move between a closed position for closing the opening and an open position for opening the opening; the closing member can move in conjunction with the movement of the door, and when the door is in the open position, the closing member is in the retreat position, and when the door is in the closed position, the closing member is in the closed position. A wire heating device as described in claim 4, wherein the closing member is moved from the retreat position to the closing position by being pressed upward by the door. A wire heating device as described in any one of claims 1 to 5, wherein, a wire running hole for the running wire to pass through is formed in the portion of the opposing wall that is opposite to the wire running groove in the first direction, and when the closing member is in the closing position, an area in the wire running hole through which the wire can pass is reserved and a portion of the wire running hole is blocked. A wire heating device as described in any one of claims 1 to 6, wherein: the wire heating device has a fixing member whose position in the moving direction of the closing member is fixed, a guide groove extending along the moving direction of the closing member is formed in either the closing member or the fixing member, and a convex portion capable of being arranged in the guide groove is formed in the closing member or the fixing member on the side different from the side on which the guide groove is formed. A wire heating device as described in claim 7, wherein, there are three insulation blocks, end parts are respectively arranged on both sides of the first direction of the central insulation block among the three insulation blocks arranged along the third direction, either of the central insulation block and the end parts is the fixed part, and the closing part moves between the closing position and the retreat position by the relative movement of the central insulation block and the end parts. A wire heating device as described in claim 8, wherein, the end member functions as the fixing member and is capable of adjusting the position in the third direction, and the closing member is mounted on the central heat insulating block. A wire heating device as described in claim 9, wherein, the closing member moves from the closing position to the retreat position by moving the central heat insulating block away from the wire running groove, the central heat insulating block has a trapezoidal shape extending in a direction away from the wire running groove when viewed from the first direction. A wire heating device as described in claim 10, wherein, when the above-mentioned closing component is located in the above-mentioned closing position, the above-mentioned central insulation block contacts the above-mentioned adjacent insulation block. A wire heating device as described in any one of claims 1 to 11, wherein the slit extends in a direction inclined relative to the moving direction of the closing member, and the closing member has an edge extending in a direction parallel to the extending direction of the slit. A wire heating device as described in any one of claims 1 to 12, wherein, the wire heating device has a storage body, the storage body stores the heating part and the at least two insulation blocks, the opposing wall can be detachably mounted on the storage body. A wire heating device as described in any one of claims 1 to 13, wherein at least a portion of the wire running groove is defined by the heating portion. A wire heating device as described in any one of claims 1 to 14, wherein the heating unit heats the wire in a non-contact manner by heated air.

Images