Spinning equipment

Abstract

The invention relates to spinning equipment which can well restrain heat transfer to a plate-shaped component arranged below a heating box body. The spinning equipment comprises a heating box body (6) which is provided with a spinning assembly with a yarn spraying head; a plate-like member (23) fixed to the heating box; and a heat insulation structure (20) that suppresses heat transfer to the plate-shaped member (23). The heat insulation structure (20) is provided with: heat insulation materials (21, 22) provided between the heating box and the plate-shaped member (23); and an attachment member (40) for attaching the plate-shaped member (23) to the heating box. The mounting member (40) has: a first bolt (42) fixed to the heating box; a second bolt (43) for fixing the plate-like member (23) at a position different from that of the first bolt (42) in the horizontal direction; and a plate (41) which is disposed inside the heat insulating material (21, 22) and which connects the first bolt (42) and the second bolt (43).

Description

Technical Field

[0001] The present invention relates to a spinning device. Background Art

[0002] Conventionally, a melt spinning device for producing long yarns by melt spinning a polymer such as polyester has been known. The melt spinning device described in Patent Document 1 spins a thermoplastic polymer from a spinneret 1 and has a heat insulating member 2 below the spinneret 1.

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2008-138301

[0004] Although the melt spinning device described in Patent Document 1 has a heat insulating member 2 below the spinneret 1, it is difficult to say that heat transfer can be suppressed only by the heat insulating member 2. A spinning device generally includes a heating box for mounting a spinning assembly having a spinneret, and a plate-like member is provided at a position below the heating box so that other devices such as a cooling device can be arranged. When the plate-like member becomes too hot, it may have an adverse effect on other devices, etc., so it is not preferred. Summary of the Invention

[0005] Therefore, in view of the above problems, the present invention provides a spinning device that can favorably suppress heat transfer to a plate-like member provided below a heating box.

[0006] (1) A spinning device, comprising:

[0007] A heating box for mounting a spinning assembly having a spinneret;

[0008] A plate-like member fixed to the heating box; and

[0009] A heat insulating structure for suppressing heat transfer to the plate-like member,

[0010] The heat insulating structure includes:

[0011] A heat insulating material provided between the heating box and the plate-like member; and

[0012] A mounting member for mounting the plate-like member to the heating box,

[0013] The mounting member has:

[0014] A first mounting member fixed to the heating box;

[0015] A second mounting member for fixing the plate-like member at a position different from the first mounting member in the horizontal direction; and

[0016] A connecting member disposed inside the heat insulating material for connecting the first mounting member and the second mounting member.

[0017] According to the spinning device in (1) above, the heat insulation structure of the spinning device includes, in addition to the heat insulation material, a mounting member. The mounting member mounts the plate-like member to the heating box body and is composed of multiple members. The heat generated in the heating box body is transferred to the plate-like member via the mounting member, but the heat transfer path is longer than that when the plate-like member is directly mounted to the heating box body by one member (for example, a bolt). In particular, by arranging the first mounting member and the second mounting member of the mounting member at different positions in the horizontal direction, the distance of the connecting member of the mounting member becomes longer, and the heat transfer path becomes even longer. That is, since the heat transfer path has a relatively large thermal resistance, the temperature of the heat transferred to the plate-like member becomes lower, and the heat transfer to the plate-like member can be well suppressed.

[0018] In addition, the mounting member can have the function of mounting the plate-like member to the heating box body and the function of suppressing the heat transfer from the heating box body to the plate-like member, without wastefully increasing the thickness of the heat insulation material. Furthermore, when the amount of heat transferred to the plate-like member is large, the amount of heat dissipated from the plate-like member also becomes large, which is not preferable from the perspective of energy conservation. In this regard, by suppressing the amount of heat transferred to the plate-like member, the amount of heat dissipated is also suppressed, which can contribute to energy conservation.

[0019] In addition, the "plate-like member fixed to the above-mentioned heating box body" includes not only the form in which the plate-like member is directly fixed to the heating box body, but also the form in which the plate-like member is indirectly fixed to the heating box body. For example, in the case of having a spinning head heater for heating the spinning head, the plate-like member can also be fixed to the heating box body via the spinning head heater.

[0020] In addition, the "mounting member for mounting the above-mentioned plate-like member to the above-mentioned heating box body" includes both the form in which the plate-like member is directly mounted to the heating box body and the form in which the plate-like member is indirectly mounted to the heating box body via, for example, a spinning head heater. Similarly, the "first mounting member fixed to the above-mentioned heating box body" includes both the form in which the first mounting member is directly fixed to the heating box body and the form in which the first mounting member is indirectly fixed to the heating box body via, for example, a spinning head heater.

[0021] (2) The spinning device is preferably

[0022] equipped with a spacer for ensuring the thickness of the above-mentioned heat insulation material.

[0023] According to the spinning device in (2) above, by means of the spacer for ensuring the thickness of the heat insulation material, when the plate-like member is mounted to the heating box body through the mounting member, the heat insulation material can be prevented from being crushed, and the thickness of the heat insulation material can be evenly maintained.

[0024] (3) The spinning device is preferably

[0025] The above heat insulation material has a first heat insulation material on the side of the above heating box body, and a second heat insulation material arranged below the first heat insulation material.

[0026] The above connecting member is arranged between the above first heat insulation material and the above second heat insulation material.

[0027] According to the spinning equipment in the above (3), by arranging a connecting member between two heat insulation members, the degree of freedom of the connecting member can be increased while making the heat transfer path longer, and the thermal resistance of the heat transfer path can be made larger. Therefore, the temperature of the heat transferred to the plate-shaped member becomes lower, and the heat transfer to the plate-shaped member can be well suppressed.

[0028] (4) The spinning equipment is preferably

[0029] The above connecting member is flat, the first heat insulation material is sandwiched between it and the above heating box body, and it is fixed to the above heating box body through the above first mounting member.

[0030] According to the spinning equipment in the above (4), by making the connecting member flat, the heat transfer path can be made longer. As a result, the thermal resistance of the heat transfer path can be made larger, so the temperature of the heat transferred to the plate-shaped member becomes lower, and the heat transfer to the plate-shaped member can be well suppressed.

[0031] In addition, regarding "the above connecting member is flat and the first heat insulation material is sandwiched between it and the above heating box body", it is only necessary to arrange the first heat insulation material between the connecting member and the heating box body. The first heat insulation material does not have to be in contact with the connecting member, and similarly, the first heat insulation material does not have to be in contact with the heating box body.

[0032] Furthermore, regarding the description of the connecting member, that is, "fixed to the above heating box body through the above first mounting member", it includes not only the form in which the connecting member is directly fixed to the heating box body, but also the form in which the connecting member is indirectly fixed to the heating box body via, for example, a yarn spraying head heater.

[0033] (5) The spinning equipment is preferably

[0034] The above connecting member is such that the second heat insulation material is sandwiched between it and the above plate-shaped member, and it is fixed to the above plate-shaped member through the above second mounting member.

[0035] According to the spinning equipment in the above (5), the heat transfer path can be made longer. As a result, the thermal resistance of the heat transfer path can be made larger, so the temperature of the heat transferred to the plate-shaped member becomes lower, and the heat transfer to the plate-shaped member can be well suppressed.

[0036] (6) The spinning equipment is preferably further provided with:

[0037] A cooling box body, disposed below the above-mentioned plate-shaped member; and

[0038] A sealing member, disposed between the above-mentioned plate-shaped member and the above-mentioned cooling box body.

[0039] According to the spinning device of the above (6), by suppressing the heat transfer to the plate-shaped member well, the heat transfer amount to the cooling box body and the sealing member can also be suppressed. Therefore, the reduction of the cooling efficiency can be suppressed, and the deterioration of the sealing member due to heat can also be suppressed.

[0040] The spinning device of the present invention can be constituted only by the constitution described in the spinning device of the above (1), or the constitution described in the above (1) and any one of the constitutions described in the above (2) to (6) can be arbitrarily combined within the range where integration can be achieved. When the constitution described in the above (1) is combined with any one of the constitutions described in the above (2) to (6), all or part of the constitution described in the above (1) and all or part of the constitutions described in the above (2) to (6) can also be arbitrarily combined within the range where integration can be achieved.

[0041] Effects of the Invention

[0042] According to the present invention, a spinning device capable of suppressing the deterioration of a sealing member for sealing a cooling box body due to heat can be provided. Description of the Drawings

[0043] Figure 1 is an example of a schematic diagram of the spinning device of the embodiment.

[0044] Figure 2 is a diagram for explaining the constitution between the heating box body and the cooling box body.

[0045] Figure 3 is a top view of the plate.

[0046] Figure 4 is a diagram for explaining the heat transfer path in the spinning device.

[0047] Figure 5 is a diagram for explaining a modification example of the spinning device.

[0048] Figure 6 is a diagram showing a modification example of the connecting member.

[0049] Figure 7 is a diagram showing a modification example of the plate.

[0050] Figure 8 is a diagram for explaining the constitution of a modification example in which the spinning device does not have a yarn spraying head heater.

[0051] Explanation of Reference Signs

[0052] 1: Spinning equipment; 2: Spinning machine; 3: Cooling box; 4: Sizing agent application device; 6: Heating box; 7: Spinning assembly; 8: Yarn spraying head; 20: Heat insulation structure; 20A: Heat insulation structure; 21: Middle heat insulation component; 22: Lower heat insulation component; 23: Plate-like component; 24: Sealing component; 25: Heat insulation component; 31: Spinning cylinder; 32: Pipe; 33: Rectifying plate; 34: Filter component; 40: Mounting component; 40A: Mounting component; 41: Plate; 41A: Screw hole; 41B: Hole; 41C: Hole; 42: First bolt; 43: Second bolt; 44: Connecting component; 45: Spacer; CF: Cooling air; P: Molten polymer; Y: Yarn. Detailed implementation mode

[0053] Figure 1 This is an example of a schematic diagram of the spinning equipment 1 of this implementation mode. In addition, for the convenience of explanation, as Figure 1 shown, the vertical direction of the paper surface is set as the up-down direction, the horizontal direction of the paper surface is set as the front-back direction for explanation. In addition, the depth direction of the paper surface is set as the left-right direction.

[0054] The spinning equipment 1 of this implementation mode is equipment for producing yarn Y formed of synthetic fibers. The spinning equipment 1 at least includes a spinning machine 2, a cooling box 3, and a sizing agent application device 4.

[0055] The spinning machine 2 is configured to spin multiple yarns Y formed of molten polymer, and at least has a heating box 6 having a substantially rectangular parallelepiped shape, and multiple spinning assemblies 7 respectively installed on multiple component housings formed on the heating box 6.

[0056] The multiple spinning assemblies 7 are arranged along the left-right direction. In addition, although not shown, the multiple spinning assemblies 7 are alternately offset in the front-back direction. That is, when viewed from the up-down direction, the multiple spinning assemblies 7 are arranged in a staggered shape. The polymer is supplied to each spinning assembly 7 from a polymer tank (not shown) via multiple polymer pipes. The spinning assembly 7 heats the polymer supplied from the polymer tank at a specified temperature (for example, 300 °C) in the heating box 6 to generate molten polymer.

[0057] A yarn spraying head 8 is arranged at the lower end of each spinning assembly 7. A yarn spraying head heater 12 is arranged around the yarn spraying head 8. The yarn spraying head 8 has, for example, multiple nozzles (not shown). The spinning assembly 7 discharges the molten polymer P from the multiple nozzles of the yarn spraying head 8. The molten polymer P discharged from the multiple nozzles is cooled in the cooling box 3 to become a single yarn Y formed of multiple long yarns. In addition, each yarn spraying head 8 does not necessarily have multiple nozzles, and may also have only one nozzle. In this case, the yarn Y is generated as a single yarn.

[0058] The cooling box 3 has a spinning cylinder 31 disposed below the spinning machine 2 (heating box 6), and a pipe 32 connected to the spinning cylinder 31. In addition, the cooling box 3 has a compressed air source (not shown) that supplies cooling air CF to the spinning cylinder 31 via the pipe 32. As the cooling box 3, for example, an annular yarn cooling box is used. The spinning cylinder 31 is, for example, a hollow box that extends in the vertical direction so as to surround the molten polymer P spun from the yarn spraying head 8. The spinning cylinder 31 has a flow rectifying plate 33 inside, and the cooling air CF passing through the pipe 32 is supplied into the space below the flow rectifying plate 33 of the spinning cylinder 31. The cooling air CF flowing into the lower space of the spinning cylinder 31 is rectified upward by the flow rectifying plate 33 and flows into the space above the flow rectifying plate 33 of the spinning cylinder 31.

[0059] The cooling air CF flowing into the upper space of the spinning cylinder 31 is rectified, for example, when passing through a filter member 34 composed of a punched filter and a cooling filter, and flows into the hollow portion of the spinning cylinder 31. Thereby, the cooling air CF is blown against the molten polymer P from the circumferential direction, and the molten polymer P is cooled.

[0060] In addition, as will be described later, the cooling box 3 is closely disposed with an insulating structure 20 to be described later between it and the heating box 6 of the spinning machine 2, and the heat from the heating box 6 is not transmitted through the insulating structure 20. Further, a sealing member 24 is provided between the heating box 6 and the spinning cylinder 31 of the cooling box 3. The cooling air CF is prevented from leaking through the sealing member 24.

[0061] In addition, the cooling box 3 is configured to be able to move up and down, for example, by a cylinder (not shown). By lowering the cooling box 3 from the spinning machine 2 by, for example, a cylinder (not shown), operations can be performed on, for example, the yarn spraying head 8 of the spinning machine 2.

[0062] In addition, although not shown, a slow cooling section is disposed between the spinning machine 2 and the cooling box 3 in the vertical direction. The slow cooling section is configured to gradually cool the yarn material during the period before the yarn material ejected from the spinning machine 2 is cooled by the cooling box 3.

[0063] The sizing agent application device 4 is disposed below the cooling box 3 and applies a sizing agent to the yarn Y spun downward from the corresponding spinning assembly 7 among the plurality of spinning assemblies 7. The yarn Y to which the sizing agent has been applied by the sizing agent application device 4 is sent to an unshown yarn winding device disposed below the sizing agent application device 4.

[0064] (Regarding the structure between the heating box 6 and the cooling box 3)

[0065] Figure 2 This is a diagram for explaining the structure between the heating box 6 and the cooling box 3.

[0066] Between the heating box 6 and the cooling box 3, there are successively arranged from above an upper heat insulation member 10, a spray head heater 12, a heat insulation structure 20, a plate-like member 23, and a sealing member 24.

[0067] The heat insulation structure 20 is composed of a middle heat insulation member 21, a lower heat insulation member 22, and a mounting member 40 described later. The lower heat insulation member 22 is arranged at a position lower than the middle heat insulation member 21. In addition, both the above-mentioned "middle heat insulation member 21" and "lower heat insulation member 22" correspond to the "heat insulation material" of the present invention. Further, the "middle heat insulation member 21" and the "lower heat insulation member 22" respectively correspond to the "first heat insulation material" and the "second heat insulation material" of the present invention.

[0068] The upper heat insulation member 10, the middle heat insulation member 21, and the lower heat insulation member 22 are made of, for example, ceramic felt, etc., and have a lower thermal conductivity than iron. The upper heat insulation member 10 is arranged between the heating box 6 and the spray head heater 12. The upper heat insulation member 10 and the spray head heater 12 are fixed to the heating box 6 by bolts 11, for example. The middle heat insulation member 21 is arranged between the spray head heater 12 and a plate 41 described later, and is arranged on the side closer to the heating box 6 than the lower heat insulation member 22. The lower heat insulation member 22 is arranged between the plate 41 described later and the plate-like member 23, and is arranged on the side closer to the cooling box 3 than the middle heat insulation member 21. The plate-like member 23 is formed of iron, for example, and functions as a mounting surface for mounting the cooling device 3 while sandwiching the sealing member 24. The plate-like member 23 is fixed to the heating box 6 via the spray head heater 12 by the mounting member 40 described later, and the middle heat insulation member 21 and the lower heat insulation member 22 are also fixed to the heating box 6.

[0069] The sealing member 24 is formed of, for example, silicone rubber, and is arranged between the plate-like member 23 and the cooling box 3. The sealing member 24 is bonded to the upper surface of the cooling box 3, and the cooling air CF is prevented from leaking from the cooling box 3 through the sealing member 24. In addition, the plate-like member 23 and the sealing member 24 are closely attached in a separable manner. As described above, the cooling box 3 descends from the spinning machine 2 by a cylinder. At this time, the sealing member 24 separates from the plate-like member 23 and descends together with the cooling box 3.

[0070] The mounting member 40 is a member that fixes the middle heat insulation member 21, the lower heat insulation member 22, and the plate-like member 23 to the heating box 6 via the spray head heater 12. The mounting member 40 has a plate 41, a first bolt 42, and a second bolt 43. The first bolt 42 and the second bolt 43 are connected via the plate 41. In addition, the above-mentioned "plate 41", "first bolt 42", and "second bolt 43" respectively correspond to the "connecting member", "first mounting member", and "second mounting member" of the present invention.

[0071] The plate 41 is plate-shaped and is disposed inside the heat insulating members (the middle heat insulating member 21 and the lower heat insulating member 22), and more specifically, between the middle heat insulating member 21 and the lower heat insulating member 22. The plate 41 is preferably made of, for example, stainless steel or the like, and is a member having a lower thermal conductivity than the plate-shaped member 23 formed of iron. Further, from the viewpoint of suppressing radiation, the surface of the plate 41 is preferably white or shiny as compared with black. The horizontal surface of the plate 41 has the same size and shape as the middle heat insulating member 21 and the lower heat insulating member 22, and the thickness is configured to be thinner than the thicknesses of the middle heat insulating member 21 and the lower heat insulating member 22.

[0072] Figure 3 This is a plan view of the plate 41. As Figure 3 shown, a plurality of screw holes 41A are provided near the outer peripheral edge on the plate 41. A second bolt 43 (see Figure 2 ) is inserted into the screw hole 41A. Further, a plurality of holes 41B are provided at a position on the plate 41 away from the screw holes 41A. A first bolt 42 (see Figure 2 ) is inserted into the hole 41B. Further, a plurality of holes 41C corresponding to the spinning cylinders 31 and having a diameter larger than that of the screw holes 41A and the holes 41B are provided on the plate 41. By providing the plurality of holes 41C, the heat transfer path described later in the plate 41 becomes longer. In addition, on the middle heat insulating member 21 and the lower heat insulating member 22 (both see Figure 2 ), through holes penetrating in the vertical direction are formed at positions overlapping the holes 41C.

[0073] In addition, a plurality of spacers 45 are provided at a plurality of positions on the front and back surfaces of the plate 41 respectively. The spacer 45 is used to ensure the thicknesses of the middle heat insulating member 21 and the lower heat insulating member 22. Here, the surface of the plate 41 on the side facing the middle heat insulating member 21 in the front and back surfaces of the plate 41 is referred to as the "front surface", and the surface of the plate 41 on the side facing the lower heat insulating member 22 is referred to as the "back surface" for description. When the thickness of the spacer 45 provided on the front surface of the plate 41 (the height of the spacer 45 protruding from the surface of the plate 41) is, for example, 12 mm, when the first bolt 42 is tightened, it is possible to prevent the middle heat insulating member 21 from being crushed, and the thickness of the middle heat insulating member 21 can be uniformly maintained at 12 mm. Similarly, by the thickness of the spacer 45 provided on the back surface of the plate 41, the thickness of the lower heat insulating member 22 can be uniformly maintained when the second bolt 43 is tightened.

[0074] Alternatively, instead of or in addition to providing the spacer 45 on the back surface of the plate 41, a spacer having the same function as the spacer 45 may be provided on the surface of the plate-like member 23 on the side facing the lower heat insulating member 22. In this case, when the second bolt 43 is tightened, it is also possible to prevent the lower heat insulating member 22 from being crushed, and the thickness of the lower heat insulating member 22 can be uniformly maintained. Furthermore, it is more preferable to also provide a spacer between the heating box body 6 and the spraying head heater 12 for uniformly maintaining the thickness of the upper heat insulating member.

[0075] For convenience, in Figure 2 , the following Figure 4 , the following Figure 5 , the following Figure 7 and the following Figure 8 , the illustration of the above spacer 45 is omitted.

[0076] The first bolt 42 fixes the lower heat insulating member 22, the plate 41, and the middle heat insulating member 21 to the heating box body 6 via the spraying head heater 12. Specifically, holes for inserting the threaded portion of the first bolt 42 are provided in the lower heat insulating member 22, the middle heat insulating member 21, and the spraying head heater 12 so as to coincide with the holes 41B of the plate 41. In a state where the lower heat insulating member 22, the plate 41, the middle heat insulating member 21, the spraying head heater 12, and the heating box body 6 are overlapped, the first bolt 42 is inserted into each hole from below. The threaded portion of the first bolt 42 engages with the hole of the spraying head heater 12, and the head is disposed in the hole of the lower heat insulating member 22. Thus, the lower heat insulating member 22, the plate 41, and the middle heat insulating member 21 are integrated and fixed to the heating box body 6 via the spraying head heater 12 by the first bolt 42.

[0077] The second bolt 43 fixes the lower heat insulating member 22 and the plate-like member 23 to the plate 41. Specifically, holes for inserting the threaded portion of the second bolt 43 are provided in the lower heat insulating member 22 and the plate-like member 23 so as to coincide with the screw holes 41A of the plate 41. In a state where the lower heat insulating member 22 and the plate-like member 23 are overlapped, the second bolt 43 is inserted into each hole from below. The threaded portion of the second bolt 43 engages with the screw hole 41A of the plate 41, and the head is disposed in the hole of the plate-like member 23. Thus, the lower heat insulating member 22 and the plate-like member 23 are integrated and fixed to the plate 41 by the second bolt 43. As Figure 3 shown, on the plate 41, the screw holes 41A for inserting the second bolt 43 are provided at positions different from the holes 41B for inserting the first bolt 42. That is, the second bolt 43 is horizontally provided at a position different from the first bolt 42.

[0078] Thus, the plate 41 and the middle heat insulation member 21 are fixed to the heating box 6 via the spraying head heater 12 by the first bolt 42, and the lower heat insulation member 22 and the plate-like member 23 are fixed to the plate 41 by the second bolt 43. Thereby, the middle heat insulation member 21, the lower heat insulation member 22, and the plate-like member 23 are fixed to the heating box 6 via the spraying head heater 12.

[0079] (Regarding the heat transfer path of the spinning device 1)

[0080] Hereinafter, with reference to Figure 4 This describes the path (heat transfer path) of the heat transferred from the spraying head heater 12 and the heating box 6 to the plate-like member 23 in the spinning device 1 provided with the mounting member 40. Figure 4 This is a diagram for explaining the heat transfer path in the spinning device 1. Figure 4 The arrows indicate the direction of heat transfer.

[0081] The middle heat insulation member 21 is disposed below the spraying head heater 12. However, as shown by the arrow in Figure 4 , the heat generated in the spraying head heater 12 and the heating box 6 is transferred to the plate 41 disposed below the middle heat insulation member 21 via the first bolt 42. In the flat plate 41, the heat is transferred horizontally from the first bolt 42. Although the lower heat insulation member 22 is disposed below the plate 41, since the plate 41 is flat, the heat is transferred to the plate-like member 23 disposed below the lower heat insulation member 22 via the second bolt 43.

[0082] Thus, the heat generated in the spraying head heater 12 and the heating box 6 is transferred to the plate-like member 23. However, in the spinning device 1 of the present embodiment, compared with the structure in which the plate-like member 23 is directly fixed to the spraying head heater 12 by bolts without providing the plate 41 (hereinafter referred to as the existing structure), the heat transfer path becomes longer. In particular, since a plurality of holes 41C are provided in the plate 41, the heat transfer path between the second bolt 43 inserted into the screw hole 41A and the first bolt 42 inserted into the hole 41B becomes longer by avoiding the holes 41C. Therefore, the thermal resistance of the heat transfer path becomes larger and the amount of heat transfer becomes smaller. That is, the temperature of the heat transferred to the plate-like member 23 is lower than that of the existing structure, and the deterioration of the sealing member 24 due to heat can be suppressed. According to the experimental results, the temperature of the plate-like member 23 in the existing structure is 190.8 °C. According to the structure of the present embodiment (refer to Figure 2 , Figure 4 ), the temperature of the plate-like member 23 is 174.6 °C, and a temperature reduction of 15 °C or more can be achieved.

[0083] As described above, in the present embodiment, by enabling the mounting member 40 to have the function of mounting the plate-like member 23 on the heating box 6 and the function of suppressing heat transfer from the spraying head heater 12 and the heating box 6 to the plate-like member 23, heat transfer to the plate-like member 23 can be suppressed well. In addition, when the amount of heat transfer from the spraying head heater 12 and the heating box 6 to the plate-like member 23 is large, the amount of heat dissipated from the plate-like member 23 also becomes large, which is not preferable from the viewpoint of energy saving. However, since the amount of heat transfer to the plate-like member 23 is suppressed, the amount of heat dissipation is also suppressed, which can contribute to energy saving.

[0084] In addition, since the amount of heat transfer to the cooling box 3 and the sealing member 24 can also be suppressed, a decrease in cooling efficiency can be suppressed, and deterioration of the sealing member 24 due to heat can also be suppressed.

[0085] (Modification example)

[0086] The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various changes can be made as long as they are described in the scope of the patent claims. For example, in the above embodiment, the spinning device 1 has two heat insulation members, but the heat insulation member may be only one. In this case, the member connecting the first bolt 42 and the second bolt 43 of the mounting member 40 may be arranged inside the heat insulation member 25.

[0087] Figure 5 It is a diagram for explaining a modification example of the spinning device. In the spinning device of the modification example, between the heating box 6 and the cooling box 3, an upper heat insulation member 10, a spraying head heater 12, a heat insulation structure 20A, a plate-like member 23, and a sealing member 24 are provided in order from above.

[0088] The heat insulation structure 20A is composed of a heat insulation member 25 and a mounting member 40A. In this configuration, the plate-like member 23 and the heat insulation member 25 are mounted on the heating box 6 via the spraying head heater 12 by the mounting member 40A. In addition, the above-mentioned "heat insulation member 25" also corresponds to the "heat insulation material" of the present invention.

[0089] The mounting member 40A has a first bolt 42, a second bolt 43, and a connecting member 44. The first bolt 42 fixes the heat insulation member 25 to the heating box 6 via the spraying head heater 12. Holes for inserting the threaded portion of the first bolt 42 are provided in the heat insulation member 25 and the spraying head heater 12. In a state where the heat insulation member 25, the spraying head heater 12, and the heating box 6 overlap, the first bolt 42 is inserted into each hole from below. The threaded portion of the first bolt 42 engages with the hole of the spraying head heater 12, and the head is disposed in the hole of the heat insulation member 25. Thus, the heat insulation member 25 is fixed to the heating box 6 via the spraying head heater 12 by the first bolt 42.

[0090] The second bolt 43 fixes the plate-like member 23 to the heat insulating member 25. Holes for inserting the threaded portion of the second bolt 43 are provided in the heat insulating member 25 and the plate-like member 23. In a state where the heat insulating member 25 and the plate-like member 23 overlap, the second bolt 43 is inserted into each hole from below. The threaded portion of the second bolt 43 engages with the hole of the heat insulating member 25, and the head is disposed in the hole of the plate-like member 23. Thus, the plate-like member 23 is fixed to the heat insulating member 25 by the second bolt 43.

[0091] The connecting member 44 connects the first bolt 42 and the second bolt 43. The connecting member 44 is, for example, rod-shaped, and a cutout is formed in the heat insulating member 25 and is disposed inside the heat insulating member 25 from the cutout. The connecting member 44 may be plate-shaped or a bent member as long as it can be disposed inside the heat insulating member 25 to connect the first bolt 42 and the second bolt 43.

[0092] In addition, when the first bolt 42 and the second bolt 43 are connected by the connecting member 44, instead of disposing the connecting member 44 inside the heat insulating member 25, for example, as Figure 2 shown, the connecting member 44 is disposed between the middle heat insulating member 21 and the lower heat insulating member 22. Thus, by disposing the connecting member 44 between the middle heat insulating member 21 and the lower heat insulating member 22 which are configured to be separated, the connecting member 44 can be freely disposed, and the heat transfer path can be extended.

[0093] Figure 6 is a view showing a modified example of the connecting member 44. Figure 6 is a plan view of the heat insulating member 25, and the connecting member 44 disposed inside the heat insulating member 25 is shown by a dotted line. As Figure 6 shown, screw holes 25A for inserting the second bolt 43 (refer to Figure 5 ), and holes 25B for inserting the first bolt 42 (refer to Figure 5 ) are provided in the heat insulating member 25. In addition, through holes 25C are provided in the heat insulating member 25. The connecting member 44 disposed inside the heat insulating member 25 may be a linear member disposed so as to overlap with the closest screw hole 25A and hole 25B, or a circular member disposed so as to surround the through hole 25C. In addition, when the plate 41 of the above-described embodiment is used, the through hole 25C is a hole provided so as to overlap with the Figure 3 hole 41C.

[0094] According to the configuration of this modification example, compared with the existing configuration, the heat transfer path also becomes longer. Therefore, the thermal resistance of the heat transfer path becomes larger and the amount of heat transfer becomes smaller. That is, the temperature of the heat transferred to the plate-like member 23 is lower than that of the existing configuration, and the deterioration of the sealing member 24 due to heat can be suppressed.

[0095] In addition, in the above-described embodiment, the first bolt 42 is engaged with the hole of the spray head heater 12, and the second bolt 43 is engaged with the screw hole 41A provided in the plate 41 to fix each layer. However, nuts can also be used to fix each layer. In addition, the first mounting member and the second mounting member of the present invention are bolts, but for example, they can also be screws.

[0096] Furthermore, the plate 41 is not limited to the configuration described in the above embodiment. Figure 7 It is a diagram showing a modification example of the plate 41. As Figure 7 shown, the hole 41B can be in the shape of a long hole, and the screw holes 41A can also be dense. In addition, although not shown, the hole 41C formed in the plate 41 can also be in the shape of a long hole. Furthermore, in addition to the hole 41C, the plate 41 can also be subjected to punching processing to form finer holes.

[0097] In the above embodiment, a plurality of holes 41C are formed in the plate 41, but they may not be formed. In addition, the hole 41C may not be circular, but may be a polygonal shape such as a rectangular shape or a triangular shape. Furthermore, the plate 41 can also have a notch formed at its edge portion as long as it is a configuration that can make the heat transfer path longer.

[0098] In addition, in the above embodiment, the spinning device 1 includes the spray head heater 12, but the spinning device does not necessarily include the spray head heater 12, and the present invention can also be applied to a spinning device that does not include the spray head heater 12. Figure 8 It is a diagram for explaining the configuration of a modification example in which the spinning device does not include the spray head heater 12, and is a diagram corresponding to Figure 2 and is a modification example of an enlarged view of the dotted rectangular portion of Figure 1 .

[0099] In Figure 8 the shown modification example, the spinning device does not include the spray head heater 12. Between the heating box 6 and the cooling box 3, a middle heat insulating member 21, a lower heat insulating member 22, a plate-like member 23, and a sealing member 24 are sequentially provided from above. According to this configuration, the heat generated by the heating box 6 is also transferred to the plate 41 disposed below the middle heat insulating member 21 via the first bolt 42. In the flat plate 41, heat is transferred horizontally from the first bolt 42. Although the lower heat insulating member 22 is disposed below the plate 41, since the plate 41 is flat, heat is transferred to the plate-like member 23 disposed below the lower heat insulating member 22 via the second bolt 43.

[0100] Thus, the heat generated by the heating box body 6 is transferred to the plate-like member 23. However, in Figure 8 in the spinning device of the illustrated modified example, compared with the conventional structure in which the plate-like member 23 is directly fixed to the heating box body 6 with bolts without providing the plate 41, the heat transfer path becomes longer. Therefore, the thermal resistance of the heat transfer path becomes larger and the amount of heat transfer becomes smaller. In such a modified example, it is more effective to provide a plurality of holes 41C in the plate 41. Therefore, the temperature of the heat transferred to the plate-like member 23 becomes lower than that of the conventional structure, and deterioration of the sealing member 24 due to heat can be suppressed.

[0101] In addition, the number of the first bolt 42 and the second bolt 43 provided between the heating box body 6 and the cooling box body 3 is not particularly limited.

[0102] In addition, in the above-described embodiment, the plate-like member 23 functions as a mounting surface for mounting the cooling device 3 while sandwiching the sealing member 24. That is, the cooling device 3 is mounted below the mounting member 23. However, the device mounted below the mounting member 23 is not limited to the cooling device 3, and other devices different from the cooling device 3 may be mounted below the mounting member 23.

Claims

1. A spinning device, comprising: A heating box body, which installs a spinning component having a yarn spraying head; A plate-like component, which is fixed to the above-mentioned heating box body; and A heat insulation structure, which suppresses heat transfer to the above-mentioned plate-like component, The above-mentioned heat insulation structure includes: A heat insulation material, which is arranged between the above-mentioned heating box body and the above-mentioned plate-like component; and A mounting component, which mounts the above-mentioned plate-like component on the above-mentioned heating box body, The above-mentioned mounting component has: A first mounting component, which is fixed to the above-mentioned heating box body; A second mounting component, which fixes the above-mentioned plate-like component at a position different from that of the above-mentioned first mounting component in the horizontal direction; and A connecting component, which is arranged inside the above-mentioned heat insulation material and connects the above-mentioned first mounting component and the above-mentioned second mounting component.

2. The spinning device according to claim 1, wherein A spacer for ensuring the thickness of the above-mentioned heat insulation material is provided.

3. The spinning device according to claim 1 or 2, wherein The above-mentioned heat insulation material has a first heat insulation material on the side of the above-mentioned heating box body and a second heat insulation material arranged below the first heat insulation material, The above-mentioned connecting component is arranged between the above-mentioned first heat insulation material and the above-mentioned second heat insulation material.

4. The spinning device according to claim 3, wherein The above-mentioned connecting component is plate-shaped, sandwiches the above-mentioned first heat insulation material between it and the above-mentioned heating box body, and is fixed to the above-mentioned heating box body through the above-mentioned first mounting component.

5. The spinning device according to claim 3 or 4, wherein The above-mentioned connecting component sandwiches the above-mentioned second heat insulation material between it and the above-mentioned plate-like component and is fixed to the above-mentioned plate-like component through the above-mentioned second mounting component.

6. The spinning device according to any one of claims 1 to 5, wherein, It further comprises: A cooling box body, which is arranged below the above-mentioned plate-like component; and A sealing component, which is arranged between the above-mentioned plate-like component and the above-mentioned cooling box body.

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