Spinning and drawing device

Abstract

The present invention relates to a kind of spinning stretching device, in the case where plate-shaped component is arranged in the heat preservation box of spinning stretching device, the airflow in the heat preservation box in the axial direction of heating roller can be inhibited to become uneven. Plate-shaped component (41) is arranged, the back of the heat preservation box from front door part (27) becomes door part (27) in closed state, and is separated from the configuration of front. The gap between the front end of the plate-shaped component (41) and the closed door part (27) is blocked by sealing component (61). Therefore, the airflow in the axial direction (front-back direction) of heating roller can be inhibited to become uneven.

Description

Technical Field

[0001] This invention relates to a spinning and stretching apparatus for drawing yarns. Background Technology

[0002] For example, Patent Document 1 discloses a spinning and stretching apparatus in which multiple heating rollers (guide rollers) for heating yarns are arranged inside an insulated box that serves as a door at the front. The multiple heating rollers are configured so that their axial direction is parallel to the front-back direction, and multiple yarns are wound onto their outer circumferential surfaces in an axially aligned manner. Furthermore, in this spinning and stretching apparatus, multiple plate-like components are arranged to protrude from the back of the insulated box towards the front door. These plate-like components function as flow straighteners or as partitions separating the high-temperature space and the low-temperature space within the insulated box.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2015-55020 When the plate-shaped component inside the insulated box protrudes excessively forward, the door will contact the plate-shaped component when closed, preventing the door from closing completely. Therefore, the plate-shaped component is separated from the closed door. This ensures a gap between the front end of the plate-shaped component and the closed door, preventing contact between the door and the plate-shaped component.

[0004] However, when a gap exists between the plate-shaped component and the door, airflow is generated due to the movement of air within this gap. This airflow originates at the front end of the insulation box, thus significantly impacting the airflow at the front and relatively less so at the rear. Therefore, this becomes the primary cause of uneven airflow in the front-to-back direction within the insulation box. Since the multiple threads wound on the heating roller are arranged axially (front-to-back direction), when the airflow becomes uneven in the front-to-back direction, the effect of the airflow on each thread varies considerably, potentially leading to deviations in thread quality. Summary of the Invention

[0005] In view of the above issues, the purpose of the spinning and stretching apparatus of the present invention is to suppress uneven airflow in the heat preservation box along the axial direction of the heating roller when a plate-shaped component is provided in the heat preservation box.

[0006] The present invention is a spinning and stretching device, characterized in that it comprises: a heat preservation box, wherein one side of the wall in a predetermined direction forms a door; a heating roller disposed inside the heat preservation box in an axial direction parallel to the predetermined direction, wherein multiple filaments are wound around the outer peripheral surface of the heating roller in a state arranged along the predetermined direction; a plate-shaped member protruding from the wall of the heat preservation box on the other side of the predetermined direction toward the aforementioned side, and disposed separately from the door in the closed state; and a sealing member blocking the gap between the end of the plate-shaped member on the aforementioned side and the door in the closed state.

[0007] According to the present invention, a sealing member is provided that blocks the gap between one end of the plate-shaped member and the door in the closed state, so that no airflow is generated between the plate-shaped member and the door. Therefore, it is possible to suppress uneven airflow within the heat preservation box in the axial direction of the heating roller.

[0008] Preferably, in this invention, an inlet for introducing the plurality of filaments into the heat preservation box is formed on the heat preservation box, and a first rectifier plate is disposed between the inlet and the heating roller as the plate-shaped component, and a sealing component is provided on the first rectifier plate.

[0009] When a gap exists between the first rectifier plate and the door, the following possibilities exist: cooler air near the inlet flows into the heating roller through the gap, or hotter air around the heating roller escapes through the gap, thereby increasing the power consumption of the heating roller. Therefore, by providing a sealing component for the first rectifier plate, the airflow between the first rectifier plate and the door can be blocked, thus suppressing the increase in power consumption of the heating roller.

[0010] Preferably, in this invention, an outlet for discharging the plurality of filaments from the heat preservation box is formed on the heat preservation box, and a second rectifier plate is disposed between the outlet and the heating roller as the plate-shaped component, and the sealing component is provided on the second rectifier plate.

[0011] When a gap exists between the second rectifier plate and the door, the following possibilities exist: cooler air near the outlet flows into the heating roller through the gap, or hotter air around the heating roller escapes through the gap, thereby increasing the power consumption of the heating roller. Therefore, by providing a sealing component for the second rectifier plate, the airflow between the second rectifier plate and the door can be blocked, thus suppressing the increase in power consumption of the heating roller.

[0012] Preferably, the heating roller is provided with a preheating roller and a conditioning roller. The preheating roller heats the yarn before stretching. The conditioning roller is located downstream of the preheating roller in the yarn travel direction and is set to be at a higher temperature and higher speed than the preheating roller. As the plate-shaped component, a partition plate is provided between the preheating roller and the conditioning roller, and the sealing component is provided on the partition plate.

[0013] When a gap exists between the separator and the door, heat may unintentionally move from the high-temperature conditioning roller side to the low-temperature preheating roller side, causing the preheating roller to exceed its set temperature. Therefore, by providing a sealing component to the separator, the heat movement from the conditioning roller side to the preheating roller side can be suppressed, thereby preventing excessive temperature rise of the preheating roller.

[0014] Preferably, in this invention, a plurality of the above-mentioned preheating rollers are provided in the direction of yarn travel, and the above-mentioned sealing member is provided on the partition plate disposed between the final preheating roller and the conditioning roller. The final preheating roller is the preheating roller disposed on the downstream side of the plurality of preheating rollers in the direction of yarn travel.

[0015] With multiple preheating rollers, the yarn is heated sequentially by each preheating roller, resulting in less heat consumption in the final preheating roller due to yarn heating. Furthermore, the final preheating roller is located near the conditioning roller. Consequently, compared to other preheating rollers, the final preheating roller is more susceptible to heat from the conditioning roller, leading to a temperature rise. Moreover, since the yarn is stretched between the final preheating roller and the conditioning roller, precise temperature control of the final preheating roller is crucial. Therefore, by providing a sealing component to the partition plate between the final preheating roller and the conditioning roller, excessive temperature rise in the final preheating roller can be suppressed, enabling high-precision temperature control.

[0016] Preferably, in this invention, a connecting flow path is formed in the region where the plurality of filaments are arranged along the axial direction, and the connecting flow path connects the low-temperature space on the side where the preheating roller is disposed closer to the partition plate to the high-temperature space on the side where the conditioning roller is disposed closer to the partition plate.

[0017] As described above, by providing a sealing component to the separator plate, excessive temperature rise of the preheating roller can be suppressed. However, on the other hand, there is a side effect that the heat from the conditioning roller cannot be effectively utilized for heating the preheating roller. Therefore, by appropriately providing a connecting flow path between the low-temperature space on the preheating roller side and the high-temperature space on the conditioning roller side, it is possible to effectively utilize the heat from the conditioning roller for heating the preheating roller while suppressing excessive temperature rise of the preheating roller. This connecting flow path is formed axially throughout the area where multiple yarns are arranged. Therefore, the effect of the airflow generated in the connecting flow path on each yarn can be made approximately uniform, and yarn quality deviations can be suppressed.

[0018] Preferably, in this invention, the aforementioned connecting flow path is a flow path formed at a different position from the yarn channel between the aforementioned preheating roller and the aforementioned conditioning roller.

[0019] In this way, by separating the connecting flow path from the wire channel, it is possible to prevent heat from flowing back from the low temperature space to the high temperature space due to the accompanying flow that accompanies the movement of the wire, and to effectively move heat from the high temperature space to the low temperature space.

[0020] Preferably, in this invention, the aforementioned connecting flow path is formed between the wall surface of the insulation box parallel to the aforementioned predetermined direction and the aforementioned partition plate.

[0021] In this way, air can easily flow along the inner surface of the insulated box within the connecting flow path, effectively moving heat from the high-temperature space to the low-temperature space.

[0022] Preferably, the present invention includes a blocking member that extends from the wall of the heat preservation box parallel to the specified direction toward the outer peripheral surface of the heat preservation roller at a position closer to the heat preservation roller than the connecting flow path. The heat preservation roller rotates so that the portion of the outer peripheral surface of the heat preservation roller opposite to the front end of the blocking member moves away from the connecting flow path.

[0023] With this configuration, the accompanying flow that accompanies the movement of the thread is blocked by the blocking component, which can prevent the heat contained in the accompanying flow from escaping in a direction away from the connected flow path. Therefore, heat can be effectively moved from the high-temperature space to the low-temperature space.

[0024] Preferably, the present invention includes a gate for changing the flow area of ​​the aforementioned connected flow path.

[0025] Based on this configuration, by adjusting the opening of the gate, the airflow in the connecting flow path can be controlled, thereby adjusting the amount of heat moving from the high-temperature space to the low-temperature space. The optimal amount of heat movement may vary depending on conditions such as the set temperature of each roller determined according to the type of yarn and the outside air temperature. Even under such conditions, by adjusting the gate opening according to the conditions, the temperature of the preheating roller can be well controlled while suppressing power consumption, regardless of the conditions.

[0026] In this invention, it is preferable that the sealing component is mounted on the plate-shaped component.

[0027] While it's possible to install the sealing element on the door, this requires precise positioning to align the sealing element with the plate-like component. Conversely, if the sealing element is installed on the plate-like component, positioning is unnecessary, simplifying the installation process.

[0028] Preferably, in this invention, the sealing member extends along the end of one side of the plate-shaped member in the long side direction, and the sealing member has a fixing portion with a U-shaped cross section orthogonal to the long side direction.

[0029] With this configuration, the sealing component can be easily installed on the plate-shaped component by clamping the end of one side of the plate-shaped component with the U-shaped fixing part.

[0030] Preferably, the fixing part has: a U-shaped part with a cross section orthogonal to the long side direction that is U-shaped; and a metal component that is plastically deformable and is disposed along the U-shaped part. When the U-shaped part is deformed to clamp the plate-shaped component through the U-shaped part, the metal component undergoes plastic deformation.

[0031] With this configuration, the end of the plate-shaped component that is clamped into the U-shaped part can be well maintained, and the sealing component can be prevented from detaching from the plate-shaped component.

[0032] Preferably, the fixing part further includes a claw portion protruding toward the inside of the U-shaped part in this invention.

[0033] With this configuration, when the U-shaped part is clamped into one end of the plate-shaped component, the claw deforms and comes into close contact with the plate-shaped component, thereby improving the airtightness between the U-shaped part and the plate-shaped component.

[0034] Preferably, in this invention, the sealing member has a hollow sealing portion between the end of the plate-shaped member on the aforementioned side and the door portion.

[0035] With this configuration, the seal is prone to deformation by being crushed when the door is closed. Therefore, by improving the airtightness of the sealing component, airflow in the gap between the plate-like component and the door can be prevented more reliably. Attached Figure Description

[0036] Figure 1 This is a schematic diagram showing a spinning traction machine equipped with the spinning stretching device of this embodiment.

[0037] Figure 2 It is a diagram showing in detail the spinning and stretching apparatus.

[0038] Figure 3 This is a 3D view of the insulated box.

[0039] Figure 4 This is a cross-sectional view of the sealing component.

[0040] Figure 5 It is a cross-sectional view showing the installation state of the sealing component.

[0041] Figure 6 This is a graph representing the results of fluid analysis.

[0042] Figure 7 It is a magnified view of the vicinity of the connected flow path.

[0043] Figure 8 This is a top view of the upper gate.

[0044] Figure 9This is a table that represents the results of a verification experiment.

[0045] Explanation of symbols: 3: Spinning and stretching device; 20: Insulation box; 20a: Inlet; 20b: Outlet; 24: Left side (wall parallel to the specified direction); 26: Back side (wall on the other side of the specified direction); 27: Door (wall on one side of the specified direction); 31~33: Guide rollers (heating rollers, preheating rollers); 34, 35: Guide rollers (heating rollers, conditioning rollers); 41: Plate-shaped component (first rectifier plate); 42: Plate 43: Plate-shaped component (partition plate); 44: Plate-shaped component (second rectifier plate); 45: Low temperature space; 46: High temperature space; 47: Connecting flow path; 48: Upper gate (gate); 49: Lower gate (gate); 54: Blocking component; 61~64: Sealing component; 66: Sealing part; 67: Fixing part; 67a: U-shaped part; 67b: Metal component; 67c: Claw part; Y: Thread. Detailed Implementation

[0046] [Spinning traction machine] The embodiments of the spinning and stretching apparatus involved in this invention will be described. Figure 1 This is a schematic diagram showing a spinning traction machine equipped with the spinning stretching apparatus of this embodiment. (Example) Figure 1 As shown, the spinning traction machine 1 is configured to solidify multiple filaments Y formed by solidifying molten fiber material such as polyester continuously spun from the spinning device 2, stretch them through the spinning stretching device 3, and then wind them through the filament winding device 4. Furthermore, Figure 1 The direction shown is defined as the direction of the spinning traction machine 1.

[0047] The spinning device 2 generates multiple filaments Y by continuously spinning molten fiber materials such as polyester. The multiple filaments Y spun from the spinning device 2 are oiled by the oiling guide 10 and then conveyed to the spinning stretching device 3 via the guide roller 11. The spinning stretching device 3 is a device for stretching the multiple filaments Y and is located below the spinning device 2. The spinning stretching device 3 is configured such that multiple guide rollers 31-35 are arranged inside the insulation box 20. The spinning stretching device 3 will be described in detail later.

[0048] Multiple filaments Y, stretched by the spinning and stretching device 3, are conveyed to the filament winding device 4 via guide rollers 12. The filament winding device 4, located below the spinning and stretching device 3, winds the multiple filaments Y. The filament winding device 4 includes a bobbin support 13, contact rollers 14, etc. The bobbin support 13 has a guide roller along... Figure 1The cylindrical shape extending in the depth direction of the paper surface is driven to rotate by a motor (not shown). Multiple bobbins B are mounted on the bobbin holder 13 in an axially aligned manner. The yarn winding device 4 rotates the bobbin holder 13, thereby simultaneously winding multiple yarns Y onto the multiple bobbins B to produce multiple packages P. Contact rollers 14 contact the surfaces of the multiple packages P to apply a predetermined contact pressure, thus adjusting the shape of the packages P.

[0049] [Spinning and stretching device] Figure 2 This is a detailed diagram showing the spinning and stretching device 3. Figure 3 This is a perspective view of the insulation box 20. The spinning and stretching device 3 includes the insulation box 20 and multiple (five in this embodiment) guide rollers 31-35 housed inside the insulation box 20. Figure 3 As shown, the insulated box 20 is box-shaped, consisting of an upper part 21, a right side part 22, a lower right sloping part 23, a left side part 24, a lower left sloping part 25, a rear part 26, and a door part 27. The door part 27 is mounted to the left side part 24 via a hinge (not shown) and can be opened and closed by swinging back and forth around the hinge. An inlet 20a is formed on the lower part of the right side part 22 for guiding multiple threads Y into the insulated box 20. An outlet 20b is formed on the upper part of the right side part 22 for guiding multiple threads Y out of the insulated box 20.

[0050] The guide rollers 31-35 are heating rollers driven by a motor (not shown) and equipped with a heater (not shown). The guide rollers 31-35 are arranged such that their axial direction is parallel to the front-back direction (the "prescribed direction" of the invention) and protrude from the rear end portion 26 of the insulation box 20 toward the door portion 27. The guide rollers 31-35 respectively face... Figure 2 Rotate in the direction of the arrow. Multiple filaments Y, which are introduced into the heat preservation box 20 from the inlet 20a, are wound around the outer circumference of the guide rollers 31-35 in an axial arrangement, and finally exit from the outlet 20b toward the outside of the heat preservation box 20.

[0051] The three lower guide rollers 31-33 are preheating rollers used to preheat multiple filaments Y before stretching, and their surface temperature is set to a temperature above the glass transition temperature of filament Y (e.g., around 80°C). On the other hand, the two upper guide rollers 34 and 35 are heat-setting rollers used to heat-set the stretched multiple filaments Y, and their surface temperature is set to a temperature higher than the surface temperature of guide rollers 31-33 (e.g., around 130-140°C). Furthermore, the rotational speed, i.e., the filament feed speed, of guide rollers 34 and 35 is faster than that of guide rollers 31-33.

[0052] Multiple filaments Y, introduced into the insulation box 20 via inlet 20a, are first preheated to a stretchable temperature while being conveyed by guide rollers 31-33. The preheated filaments Y are stretched by the difference in filament feed speed between guide rollers 33 and 34. The filaments Y are then heated to an even higher temperature while being conveyed by guide rollers 34 and 35, and their stretched state is heat-set. The stretched filaments Y are then discharged out of the insulation box 20 via outlet 20b.

[0053] Plate-shaped components 41-44 are disposed inside the insulation box 20. These plate-shaped components 41-44 function as "rectifiers" to rectify the airflow inside the insulation box 20. Specifically, the plate-shaped components 41-44 are configured to ensure that the airflow inside the insulation box 20 from the inlet 20a to the outlet 20b is generally along the direction of yarn travel. Furthermore, plate-shaped components 42 and 43 are disposed between the low-temperature space below the low-temperature guide rollers 31-33 and the high-temperature space above the high-temperature guide rollers 34 and 35. That is, the plate-shaped components 42 and 43 also function as "partitions" separating the high-temperature space from the low-temperature space.

[0054] Furthermore, blocking components 51 to 54 are provided inside the insulation box 20. These blocking components 51 to 54 extend toward the outer peripheral surface of the guide rollers 34 or 35, with their front ends approaching the outer peripheral surface of the guide rollers 34 or 35. Inside the insulation box 20, a co-current is generated along with the movement of multiple yarns Y. However, as this co-current increases and moves downstream in the direction of yarn movement, a large amount of heat escapes from the outlet 20b, reducing the insulation effect of the insulation box 20. Therefore, by blocking the co-current with blocking components 51 to 54, the increase of the co-current is suppressed, thereby suppressing the reduction in insulation effect. In addition, the blocking components 51, 52, and 54 are configured to oscillate around their base without obstructing the yarn hanging on the guide rollers 34 and 35. For details, please refer to Japanese Patent Application Publication No. 2016-216882.

[0055] [Improved airflow inside the insulated box] Plate-shaped components 41-44 are configured to protrude forward from the rear end 26 of the insulation box 20. These components are separated from the closed door 27 so that the door 27 does not contact the front end of the plate-shaped components 41-44 when closed. However, this arrangement generates airflow between the front end of the plate-shaped components 41-44 and the closed door 27, resulting in uneven airflow within the insulation box 20 in the front-back direction. Multiple threads Y wound on heating rollers 31-35 are arranged along the axial direction (front-back direction) of the heating rollers 31-35. Therefore, when the airflow within the insulation box 20 becomes uneven in the front-back direction, the effect of the airflow on each thread Y varies significantly, potentially causing deviations in the quality of the threads Y.

[0056] Therefore, in this embodiment, sealing members 61-64 are installed at the front end of the plate-shaped members 41-44 to block the gap between the front end of the plate-shaped members 41-44 and the door portion 27 in the closed state (see reference). Figure 2 (A single-dot dashed line). Sealing members 61 to 64 are linear elastic members extending along the long side of the front end of plate-shaped members 41 to 44. The structure of sealing member 61 will be described below, but sealing members 62 to 64 have the same structure as sealing member 61.

[0057] Figure 4 This is a cross-sectional view of the sealing component 61. Figure 5 These are cross-sectional views showing the installed state of the sealing member 61. These cross-sectional views illustrate the section of the sealing member 61 orthogonal to its long side. The sealing member 61 has a hollow sealing portion 66, a U-shaped fixing portion 67, and a connecting portion 68 that connects the sealing portion 66 and the fixing portion 67. Except for the metal part 67b described later, the sealing member 61 is integrally made of silicone rubber.

[0058] A through hole 66a extending along the long side is formed in the sealing portion 66. Thus, the sealing portion 66 is hollow. The fixing portion 67 has a U-shaped portion 67a, a metal component 67b embedded in the U-shaped portion 67a, and a plurality of claws 67c. The metal component 67b is a linear component arranged along the U-shape of the U-shaped portion 67a, and is formed of a metal material capable of plastic deformation. For example, a plurality of metal components 67b are embedded in the long side direction of the sealing portion 61 by insert molding. The claws 67c are protruding portions formed in a manner that protrude inward from the U-shaped portion 67a. In this embodiment, two pairs of opposing claws 67c are formed, but the number of pairs of claws 67c can be appropriately varied, and it is not necessary for the claws 67c to be arranged opposite each other.

[0059] like Figure 5As shown in Figure (a), when the sealing member 61 is installed on the plate-shaped member 41, the front end of the plate-shaped member 41 is clamped by the U-shaped fixing part 67, and the fixing part 67 is deformed by pressing against the plate-shaped member 41. As a result, the plurality of claw parts 67c elastically deform and come into close contact with the plate-shaped member 41. Furthermore, when the fixing part 67 is deformed by pressing against the plate-shaped member 41, the metal part 67b plastically deforms, effectively maintaining the state of being clamped into the plate-shaped member 41 by the fixing part 67.

[0060] Thus, when the sealing member 61 is installed on the plate-shaped member 41, the sealing portion 66 is located in front of the plate-shaped member 41. Therefore, as Figure 5 As shown in Figure (b), when the door 27 is closed, the door 27 contacts the sealing part 66 and crushes the hollow sealing part 66. As a result, the sealing part 66 is in close contact with the door 27, thus improving the airtightness between the door 27 and the sealing part 66.

[0061] By installing the sealing components 61-64, as described above, at the front ends of the plate-shaped components 41-44, the gap between the plate-shaped components 41-44 and the door 27 can be blocked, preventing airflow between the front ends of the plate-shaped components 41-44 and the closed door 27. Therefore, it is possible to suppress uneven airflow in the front-back direction inside the insulation box 20.

[0062] [Analysis-based validation] Fluid analysis was used to verify how the airflow changes with or without sealing components 61-64. Specifically, the analysis was conducted for both the case where sealing component 64 was not installed on the plate-shaped component 44 and the case where sealing component 64 was installed. Figure 2 The airflow in the VI-VI plane was analyzed. Assuming the actual operating conditions, the rotational speed of guide rollers 31-33 was set to 2260-2490 m / min, and the rotational speed of guide rollers 34 and 35 was set to 4875 m / min.

[0063] Figure 6 This is a graph representing the results of fluid analysis, specifically a view of the airflow in the VI-VI plane from above. For example... Figure 6 As shown in Figure (a), in the absence of the sealing member 64, a gap is created in front of the plate-shaped member 44, thus generating airflow within this gap (refer to the area enclosed by the ellipse). Under its influence, the airflow becomes uneven in the front-rear direction, and the airflow along the direction of thread travel becomes significantly turbulent. Therefore, when the airflow becomes uneven in the front-rear direction, the quality of each thread Y traveling in the front-rear direction is prone to deviation. Furthermore, due to the turbulence of the airflow along the direction of thread travel, there is also a problem of thread oscillation. Additionally, in Figure 6A larger flow velocity to the right is generated in the area directly above the guide roller 35.

[0064] On the other hand, such as Figure 6 As shown in Figure (b), with the sealing member 64 installed, the gap in front of the plate-shaped member 44 is blocked, thus preventing airflow in the gap and suppressing uneven airflow in the front-to-back direction. Therefore, quality deviations in each thread Y can be suppressed. Furthermore, the airflow along the thread travel direction is also maintained relatively well, making thread swaying difficult. The same effect can be observed at other locations where sealing members 61-63 are installed.

[0065] [Balancing airflow improvement with energy conservation] When a sealing member 63 is provided for the plate-shaped member 43 positioned between the low-temperature guide roller 33 and the high-temperature guide roller 35, the airflow improvement effect described above is achieved. However, there is also a side effect as follows: When a gap exists between the plate-shaped member 43 and the door portion 27, heat easily moves from the high-temperature guide roller 35 side to the low-temperature guide roller 33 side because air flows through this gap. As a result, the guide roller 33 can be effectively heated, reducing the power consumption of the spinning stretching device 3. However, because the gap is blocked by the sealing member 63, heat is difficult to move from the guide roller 35 side to the guide roller 33 side, potentially increasing the power consumption of the spinning stretching device 3.

[0066] Therefore, in this embodiment, as Figure 7 As shown, a connecting flow path 47 is provided that connects the low-temperature space 45, located below the plate-shaped member 43 and on the upper side of the plate-shaped member 43 and on the upper side of the plate-shaped member 43 and on the upper side of the plate-shaped member 43 and on the lower side of the plate-shaped member 33. The connecting flow path 47 is formed between the inner surface of the left side face 24 of the heat preservation box 20 and the plate-shaped member 43. Since heat moves from the high-temperature space 46 to the low-temperature space 45 via the connecting flow path 47, the increase in power consumption of the spinning and stretching device 3 can be suppressed.

[0067] However, by simply setting up the connecting flow path 47, heat may excessively move from the high-temperature space 46 to the low-temperature space 45, and the temperature of the guide roller 33 may exceed the set temperature. Therefore, in this embodiment, gates 48 and 49 are provided for changing the flow path area of ​​the connecting flow path 47. Figure 7 This is an enlarged view of the area near connected flow path 47. Figure 8 This is a top view of the upper gate 48. Figure 8 Figure (a) shows the state with the upper gate 48 fully closed, and Figure (b) shows the state with the upper gate 48 fully open. Additionally, in Figure 8 In the middle, the upper gate 48 is shown with a thick line.

[0068] like Figure 7 As shown, the plate-shaped member 43 is configured as follows: an upper partition 43a extending in the left-right direction, a lower partition 43b arranged at intervals below the upper partition 43a and extending in the left-right direction, and a connecting portion 43c extending in the up-down direction connecting the left end of the upper partition 43a and the left end of the lower partition 43b. However, each part 43a to 43c may also be configured separately.

[0069] like Figure 8 As shown in Figure (b), the left rear corner of the upper partition 43a is cut into a rectangular shape, forming a cut 43d, which becomes the upper end of the connecting flow path 47. Although not shown in the figure, the left rear corner of the lower partition 43b is also cut into a rectangular shape, forming the lower end of the connecting flow path 47. That is, the connecting flow path 47 is formed between the cut 43d formed in the upper partition 43a and the cut formed in the lower partition 43b.

[0070] exist Figure 8 The guide roller 35 is illustrated with a single-dot dashed line. As can be clearly seen from the figure, the guide roller 35 (and the other heating rollers 31-34) converge in the front-back direction to the area where the connecting flow path 47 (cutout 43d) is formed. In other words, the connecting flow path 47 is formed in the axial direction over the area where multiple yarns Y are wound on the heating rollers 31-35, that is, the area where multiple yarns Y are arranged in the front-back direction.

[0071] In the upper partition 43a, two elongated holes 43e extending in the left-right direction are formed in the front-back direction. On the other hand, the upper gate 48 is a rectangular plate-like component mounted on the upper surface of the upper partition 43a. The upper gate 48 has dimensions capable of blocking the cutout 43d. Corresponding to the two elongated holes 43e formed in the upper partition 43a, two circular holes (not shown) are formed in the upper gate 48 in the front-back direction. Figure 7 As shown, by passing the bolt 71 through the round hole of the upper gate 48 and the elongated hole 43e of the upper partition 43a, and tightening the nut 72 to the bolt 71, the upper gate 48 can be fixed to the upper partition 43a. The lower partition 43b and the lower gate 49 have the same configuration, and the lower gate 49 can be fixed to the lower partition 43b by the bolt 73 and the nut 74.

[0072] With this configuration, by moving the upper gate 48 along the elongated hole 43e in the left-right direction with the nut 72 loosened, the opening degree of the upper gate 48 (the opening degree of the cut portion 43d of the upper partition 43a) can be changed, thereby adjusting the flow area of ​​the connecting flow path 47. Similarly, by moving the lower gate 49 along the elongated hole in the left-right direction with the nut 74 loosened, the opening degree of the lower gate 49 (the opening degree of the cut portion of the lower partition 43b) can be changed, thereby adjusting the flow area of ​​the connecting flow path 47.

[0073] For example, such as Figure 8 As shown in Figure (a), when gates 48 and 49 are moved to the left and come into contact with the inner surface of the left side face 24 of the insulation box 20, the connecting flow path 47 can be blocked. On the other hand, when gates 48 and 49 are moved to the right away from the left side face 24, the connecting flow path 47 gradually opens and can be blocked as shown in Figure (a). Figure 8 The connecting flow path 47 is fully opened as shown in Figure (b). Furthermore, by adjusting the opening of gates 48 and 49 individually, the airflow rate and direction in the connecting flow path 47 can be precisely controlled.

[0074] As described above, the heat loss from the insulation chamber 20 is suppressed by setting blocking components 51-54. However, in particular, blocking component 54 helps to effectively move heat from the high-temperature space 46 to the low-temperature space 45. Figure 3 As shown, the blocking member 54 extends from the left side 24 of the insulation box 20, closer to the guide roller 35 (upper side) than the connecting flow path 47, toward the outer peripheral surface of the guide roller 35. Furthermore, the guide roller 35 rotates clockwise so that the portion A of its outer peripheral surface opposite the front end of the blocking member 54 moves away from the connecting flow path 47. Therefore, the accompanying flow around the guide roller 35 is blocked by the blocking member 54, preventing the heat contained in the accompanying flow from escaping downstream of the blocking member 54 in the direction of yarn travel. Correspondingly, more heat can move from the high-temperature space 46 to the low-temperature space 45 via the connecting flow path 47.

[0075] In the spinning and stretching apparatus 3 configured as described above, the opening degrees of the upper gate 48 and the lower gate 49 are appropriately adjusted according to conditions such as the type of yarn Y and the outside air temperature. This allows for the control of the airflow in the connecting flow path 47 and, consequently, the amount of heat transfer. By adjusting the flow path area of ​​the connecting flow path 47 to maximize the movement of heat from the high-temperature space 46 to the low-temperature space 45 within the range where the guide roller 33 does not exceed a set temperature, the seemingly contradictory issues of controllability of the guide roller 33 and energy efficiency of the spinning and stretching apparatus 3 can be effectively balanced.

[0076] [Verification Experiment] The following experiment was conducted to verify how the opening rate of the heaters of the heating rollers 31-35 and the power consumption of the spinning stretching device 3 change depending on whether there is a sealing component 63 and whether there is a connecting flow path 47. Figure 9 This table shows the results of the verification experiment. In this experiment, the set temperature of guide rollers 31-33 was set to 80°C, and the set temperature of guide rollers 34 and 35 was set to 134°C. Furthermore, in Example 2, gates 48 and 49 were fully opened. The term "heater operating rate" refers to the proportion of time the heater is operated to maintain the surface temperature of each heating roller 31-35 at the set temperature. That is, a lower heater operating rate is considered more energy-efficient. However, when the heater operating rate is 0%, it means that even without operating the heater, the possibility of exceeding the set temperature increases. Therefore, considering controllability, the heater operating rate is preferably always at a certain level or higher (e.g., 1% or higher). Furthermore, Figure 9 The power consumption indicates the total power required for heating the heating rollers 31 to 35.

[0077] As already explained, in Embodiment 1, the airflow is improved by providing the sealing member 63. However, compared to the comparative example without the sealing member 63, the heat transfer from the high-temperature space 46 to the low-temperature space 45 is reduced, thus increasing the activation rate of the heater of the guide roller 33 and the power consumption of the spinning and stretching device 3. On the other hand, in Embodiment 2, which provides the sealing member 63 and the connecting flow path 47, the activation rate of the heater of the guide roller 33 and the power consumption of the spinning and stretching device 3 are reduced compared to the comparative example. Moreover, as described above, the connecting flow path 47 is formed throughout the area where multiple yarns Y are arranged in the front-to-back direction, thus preventing significant unevenness in the airflow in the front-to-back direction within the insulation box 20.

[0078] In addition, when the gates 48 and 49 are fully open, if the opening rate of the heater of the guide roller 33 becomes too small (making it difficult to control the temperature), by adjusting the opening degree of the gates 48 and 49, energy saving of the spinning stretching device 3 can be achieved while maintaining the controllability of the guide roller 33.

[0079] [Effect] As described above, in the spinning and stretching apparatus 3 according to this embodiment, since sealing members 61-64 are provided to block the gap between the front ends of the plate-shaped members 41-44 and the closed door portion 27, no airflow is generated between the plate-shaped members 41-44 and the door portion 27. Therefore, it is possible to suppress uneven airflow within the heat preservation box 20 in the axial direction of the heating rollers 31-35.

[0080] In this embodiment, an inlet 20a is formed on the insulation box 20 for introducing multiple filaments Y into the insulation box 20. A plate-shaped component 41 (the "first rectifier plate" of the present invention) is disposed between the inlet 20a and the guide roller 32, and a sealing component 61 is provided for the plate-shaped component 41. When a gap exists between the plate-shaped component 41 and the door 27, cooler air near the inlet 20a flows into the guide roller 32 through this gap, or warmer air around the guide roller 32 escapes through this gap, potentially increasing the power consumption of the guide roller 32. Therefore, by providing the sealing component 61 to the plate-shaped component 41, the airflow between the plate-shaped component 41 and the door 27 can be blocked, suppressing the increase in power consumption of the guide roller 32.

[0081] In this embodiment, an outlet 20b for leading out multiple filaments Y from the insulation box 20 is formed on the insulation box 20. A plate-shaped component 44 (the "second rectifier plate" of the present invention) is disposed between the outlet 20b and the guide roller 34, and a sealing component 64 is provided for the plate-shaped component 44. When a gap exists between the plate-shaped component 44 and the door 27, cooler air near the outlet 20b flows into the guide roller 34 through this gap, or warmer air around the guide roller 34 escapes through this gap, potentially increasing the power consumption of the guide roller 34. Therefore, by providing the sealing component 64 for the plate-shaped component 44, the airflow between the plate-shaped component 44 and the door 27 can be blocked, suppressing the increase in power consumption of the guide roller 34.

[0082] In this embodiment, the heating rollers include guide rollers 31-33 for heating the yarn Y before stretching, and guide rollers 34 and 35 positioned downstream of guide rollers 31-33 in the yarn travel direction and set to be at a higher temperature and higher speed than guide rollers 31-33. Plate-shaped components 42 and 43 are disposed between guide rollers 32 and 33 and guide rollers 34 and 35, and sealing components 62 and 63 are provided for plate-shaped components 42 and 43. When a gap exists between plate-shaped components 42 and 43 and the door portion 27, heat can unintentionally move from the high-temperature guide rollers 34 and 35 to the low-temperature guide rollers 32 and 33, potentially causing guide rollers 32 and 33 to exceed their set temperature. Therefore, by providing sealing members 62 and 63 to the plate-shaped components 42 and 43, thermal movement from the guide rollers 34 and 35 to the guide rollers 32 and 33 is suppressed, thereby suppressing excessive temperature rise of the guide rollers 32 and 33.

[0083] In this embodiment, a plurality of guide rollers 31 to 33 are provided in the yarn travel direction. A sealing member 63 is provided for the plate-shaped member 43 located between the guide roller 33 (the "final preheating roller" of the present invention) and the guide roller 35, which is the most downstream of the plurality of guide rollers 31 to 33 in the yarn travel direction. When a plurality of guide rollers 31 to 33 are provided, the yarn Y is heated sequentially by each guide roller 31 to 33, so less heat is consumed in the guide roller 33 due to the heating of the yarn Y. In addition, the guide roller 33 is located near the guide roller 35. Therefore, compared with the other guide rollers 31 and 32, the guide roller 33 is more susceptible to the heat influence from the guide roller 35 and its temperature rises. Furthermore, since the yarn Y is stretched between the guide roller 33 and the guide roller 34, the temperature control of the guide roller 33 requires particular precision. Therefore, if a sealing component 63 is provided for the plate-shaped component 43 between the guide roller 33 and the guide roller 35, the excessive temperature rise of the guide roller 33 can be suppressed, and the temperature of the guide roller 33 can be controlled with high precision.

[0084] In this embodiment, a connecting flow path 47, which connects the low-temperature space 45 on the side of the plate-shaped member 43 adjacent to the guide roller 33 and the high-temperature space 46 on the side of the plate-shaped member 43 adjacent to the guide roller 35, is formed axially throughout the region where multiple yarns are arranged in a Y-shape. As described above, by providing a sealing member 63 for the plate-shaped member 43, excessive temperature rise of the guide roller 33 can be suppressed. However, conversely, there is also the side effect that the heat from the guide roller 35 cannot be effectively utilized for heating the guide roller 33. Therefore, by appropriately providing a connecting flow path 47 between the low-temperature space 45 on the guide roller 33 side and the high-temperature space 46 on the guide roller 35 side, excessive temperature rise of the guide roller 33 can be suppressed while effectively utilizing the heat from the guide roller 35 for heating the guide roller 33. This connecting flow path 47 is formed axially throughout the region where multiple yarns are arranged in a Y-shape. Therefore, the influence of the airflow generated in the connecting flow path 47 on each filament Y can be made roughly uniform, and the quality deviation of the filament Y can be suppressed.

[0085] In this embodiment, the connecting flow path 47 is a flow path formed at a different position from the yarn channel between the guide roller 33 and the guide roller 35. Thus, by separating the connecting flow path 47 from the yarn channel, it is possible to prevent heat from flowing back from the low-temperature space 45 to the high-temperature space 46 due to the accompanying flow accompanying the movement of the yarn Y, and to effectively move heat from the high-temperature space 46 to the low-temperature space 45.

[0086] In this embodiment, the connecting flow path 47 is formed between the side portion 24 parallel to the front-rear direction of the insulation box 20 and the plate-shaped member 43. In this way, air can easily flow along the side portion 24 of the insulation box 20 within the connecting flow path 47, effectively moving heat from the high-temperature space 46 to the low-temperature space 45.

[0087] In this embodiment, a blocking member 54 is provided, extending from the side portion 24 of the insulation box 20 towards the outer peripheral surface of the guide roller 35, at a position closer to the guide roller 35 than the connecting flow path 47. The guide roller 35 rotates so that portion A of its outer peripheral surface, opposite the front end of the blocking member 54, moves away from the connecting flow path 47. With this configuration, the accompanying flow associated with the movement of the yarn Y is blocked by the blocking member 54, suppressing the escape of heat contained in the accompanying flow away from the connecting flow path 47. Therefore, heat can be effectively moved from the high-temperature space 46 to the low-temperature space 45.

[0088] In this embodiment, gates 48 and 49 are provided for changing the flow area of ​​the connecting flow path 47. With this configuration, by adjusting the opening degree of the gates 48 and 49, the airflow rate flowing in the connecting flow path 47 can be controlled, thereby adjusting the amount of heat movement from the high-temperature space 46 to the low-temperature space 45. The optimal amount of heat movement may vary depending on conditions such as the set temperature of each roller 33 and 35 determined according to the type of yarn Y, and the outside air temperature. Even in such cases, by adjusting the opening degree of the gates 48 and 49 according to the conditions, the temperature of the guide roller 33 can be well controlled while suppressing power consumption, regardless of the conditions.

[0089] In this embodiment, sealing components 61-64 are mounted on plate-shaped components 41-44. While sealing components 61-64 can also be mounted on the door portion 27, this requires precise positioning to ensure the sealing components 61-64 are aligned with the plate-shaped components 41-44. On the other hand, if sealing components 61-64 are mounted on plate-shaped components 41-44, positioning of the sealing components 61-64 is unnecessary, simplifying the installation process.

[0090] In this embodiment, sealing members 61-64 extend along the front end of plate-shaped members 41-44 in the longitudinal direction, and sealing members 61-64 have a fixing portion 67 with a U-shaped cross-section orthogonal to the longitudinal direction. With this configuration, the front end of plate-shaped members 41-44 is clamped by the U-shaped fixing portion 67, thereby allowing sealing members 61-64 to be easily installed on plate-shaped members 41-44.

[0091] In this embodiment, the fixing part 67 has a U-shaped part 67a with a cross-section orthogonal to the long side direction, and a plastically deformable metal member 67b provided along the U-shape of the U-shaped part 67a. When the U-shaped part 67a is deformed to clamp the plate-shaped members 41-44 through the U-shaped part 67a, the metal member 67b is plastically deformed. With this configuration, the state of the front end of the plate-shaped members 41-44 clamped through the U-shaped part 67a can be well maintained, and the sealing members 61-64 can be prevented from detaching from the plate-shaped members 41-44.

[0092] In this embodiment, the fixing part 67 also has a claw part 67c protruding towards the inside of the U-shaped part 67a. With this configuration, when the front end of the plate-shaped member 41-44 is clamped by the U-shaped part 67a, the claw part 67c deforms and comes into close contact with the plate-shaped member 41-44, thereby improving the airtightness between the U-shaped part 67a and the plate-shaped member 41-44.

[0093] In this embodiment, the sealing members 61-64 have a hollow sealing portion 66 between the front end of the plate-shaped members 41-44 and the door portion 27. With this configuration, the sealing portion 66 is easily deformed by being crushed when the door portion 27 is closed. Therefore, due to the improved airtightness of the sealing members 61-64, airflow in the gap between the plate-shaped members 41-44 and the door portion 27 can be prevented more reliably.

[0094] In this embodiment, the sealing components 61-64 are made of silicone rubber. Silicone rubber has excellent heat resistance, so it can be used well even in the spinning and stretching device 3, which is at a high temperature inside the insulation box 20.

[0095] [Other Implementation Methods] This section describes variations of the above-described implementation with various modifications.

[0096] In the above embodiment, sealing members 61-64 are installed on the plate-shaped members 41-44 to seal the gap between the door 27 of the insulated box 20 and the plate-shaped members 41-44. However, sealing members 61-64 may also be installed on the door 27. Furthermore, the specific shape and material of the sealing members 61-64 are not limited to the shape and material shown in the above embodiment.

[0097] In the above embodiment, the connecting flow path 47 is formed between the left side face 24 of the insulation box 20 and the plate-shaped member 43. However, the location of the connecting flow path 47 is not limited to this; for example, an opening may be made in the plate-shaped member 43 to form the connecting flow path. Furthermore, the number of connecting flow paths is not limited to one; two or more may be provided.

[0098] In the above embodiment, by providing the connecting flow path 47, the guide roller 33 can be effectively heated. Similarly, when the guide roller 32 is effectively heated, a connecting flow path can be provided that connects the low-temperature space on the side of the plate-shaped member 42 where the guide roller 32 is disposed with the high-temperature space on the side of the plate-shaped member 42 where the guide roller 34 is disposed. Furthermore, a gate can also be provided for this connecting flow path.

[0099] In the above embodiment, the connecting flow path 47 is formed at a different location than the wire channel. However, the wire channel may also be formed within the connecting flow path. In this case, the gate cannot be fully closed, but the gate opening can be adjusted within a range without blocking the wire channel.

[0100] In the above embodiment, multiple gates 48 and 49 are provided in the connecting flow path 47 in the air flow direction D. However, it is sufficient to have at least one gate.

[0101] In the above embodiment, gates 48 and 49 are configured to move in the left and right directions. However, the specific configuration of the gates is not limited to this; for example, they can also be opened and closed by a swinging motion.

[0102] In the above embodiment, multiple guide rollers 31-33 and multiple guide rollers 34 and 35 are provided. However, it is not necessary to provide multiple preheating rollers and conditioning rollers; it is sufficient to have at least one preheating roller and one conditioning roller.

Claims

1. A spinning and stretching device, characterized in that, have: The wall of the insulated box, facing a specific direction, becomes the door. A heating roller is arranged in the heat preservation box with its axial direction parallel to the aforementioned specified direction, and multiple threads are wound around the outer circumferential surface of the heating roller in a state of being arranged along the aforementioned axial direction. A plate-shaped component protrudes from the wall of the insulated box on the opposite side of the aforementioned predetermined direction toward the aforementioned side, and is separately disposed from the aforementioned door in the closed state, thereby rectifying the airflow within the insulated box; and A sealing component blocks the gap between the end of the plate-shaped component on one side and the door in the closed state, preventing uneven airflow within the heat preservation box along the axial direction of the heating roller. The aforementioned sealing component is an elastic component. The heating roller described above is equipped with a preheating roller and a conditioning roller. The preheating roller heats the yarn before stretching, and the conditioning roller is located downstream of the preheating roller in the yarn travel direction and is set to have a higher temperature and higher speed than the preheating roller. As the aforementioned plate-shaped component, a partition plate is disposed between the preheating roller and the conditioning roller, and the aforementioned sealing component is provided on the partition plate. A connecting flow path is formed in the area where the multiple filaments are arranged along the aforementioned axial direction. This connecting flow path connects the low-temperature space on the side where the preheating roller is located, which is closer to the partition plate, with the high-temperature space on the side where the conditioning roller is located, which is closer to the partition plate. The aforementioned connecting flow path is a flow path formed at a different position from the yarn channel between the aforementioned preheating roller and the aforementioned conditioning roller. The aforementioned connecting flow path is formed between the wall surface of the aforementioned insulated box, which is parallel to the aforementioned specified direction, and the aforementioned partition plate. The spinning and stretching apparatus described above is provided with a blocking component that extends from the wall of the heat preservation box, which is parallel to the specified direction, toward the outer peripheral surface of the heat preservation roller at a position closer to the heat preservation roller than the connecting flow path. The conditioning roller is rotated so that the portion of the outer peripheral surface of the conditioning roller that faces the front end of the blocking member is moved away from the connecting flow path.

2. The spinning and stretching apparatus as described in claim 1, characterized in that, An inlet is formed on the aforementioned insulated box for introducing the aforementioned multiple filaments into the insulated box. As the aforementioned plate-shaped component, a first rectifier plate is disposed between the aforementioned inlet and the aforementioned heating roller, and the aforementioned sealing component is provided on the aforementioned first rectifier plate.

3. The spinning and stretching apparatus as described in claim 1 or 2, characterized in that, The aforementioned insulated box has an outlet for discharging the aforementioned multiple filaments from the insulated box. As the aforementioned plate-shaped component, a second rectifier plate is disposed between the aforementioned outlet and the aforementioned heating roller, and the aforementioned sealing component is provided on the aforementioned second rectifier plate.

4. The spinning and stretching apparatus as described in claim 1, characterized in that, The sealing member has a hollow sealing portion between the end of the plate-shaped member on the aforementioned side and the door portion.

5. The spinning and stretching apparatus as described in claim 1, characterized in that, A gate is provided for changing the flow area of ​​the aforementioned connected flow path.

6. The spinning and stretching apparatus as described in claim 1 or 2, characterized in that, The aforementioned sealing component is installed on the aforementioned plate-shaped component.

7. The spinning and stretching apparatus as described in claim 6, characterized in that, The aforementioned sealing member extends along the longitudinal direction of the end of one side of the aforementioned plate-shaped member. The sealing component described above has a fixing part with a U-shaped cross-section that is orthogonal to the direction of the long side.

8. The spinning and stretching apparatus as described in claim 7, characterized in that, The aforementioned fixing part has: The U-shaped section, with its cross-section orthogonal to the aforementioned long side direction, is U-shaped; and The metal component, capable of plastic deformation, is arranged along the U-shape of the aforementioned U-shaped portion. When the U-shaped portion is deformed to allow the plate-shaped component to be clamped through the U-shaped portion, the metal component undergoes plastic deformation.

9. The spinning and stretching apparatus as described in claim 8, characterized in that, The aforementioned fixing part also has a claw portion protruding towards the inside of the aforementioned U-shaped part.

10. A spinning and stretching device, characterized in that, have: The wall of the insulated box, facing a specific direction, becomes the door. A heating roller is arranged in the heat preservation box with its axial direction parallel to the aforementioned specified direction, and multiple threads are wound around the outer circumferential surface of the heating roller in a state of being arranged along the aforementioned axial direction. A plate-shaped component protrudes from the wall of the insulated box on the opposite side of the aforementioned predetermined direction toward the aforementioned side, and is separately disposed from the aforementioned door in the closed state, thereby rectifying the airflow within the insulated box; and A sealing component blocks the gap between the end of the plate-shaped component on one side and the door in the closed state, preventing uneven airflow within the heat preservation box along the axial direction of the heating roller. The aforementioned sealing component is an elastic component. The aforementioned sealing component is installed on the aforementioned plate-shaped component. The aforementioned sealing member extends along the longitudinal direction of the end of one side of the aforementioned plate-shaped member. The aforementioned sealing component has a fixing portion with a U-shaped cross-section orthogonal to the aforementioned long side direction. The aforementioned fixing part has: The U-shaped section, with its cross-section orthogonal to the aforementioned long side direction, is U-shaped; and The metal component, capable of plastic deformation, is arranged along the U-shape of the aforementioned U-shaped portion. When the U-shaped portion is deformed to allow the plate-shaped component to be clamped through the U-shaped portion, the metal component undergoes plastic deformation.

11. The spinning and stretching apparatus as described in claim 10, characterized in that, The aforementioned fixing part also has a claw portion protruding towards the inside of the aforementioned U-shaped part.

12. The spinning and stretching apparatus as described in claim 10, characterized in that, An inlet is formed on the aforementioned insulated box for introducing the aforementioned multiple filaments into the insulated box. As the aforementioned plate-shaped component, a first rectifier plate is disposed between the aforementioned inlet and the aforementioned heating roller, and the aforementioned sealing component is provided on the aforementioned first rectifier plate.

13. The spinning and stretching apparatus as described in claim 10, characterized in that, The aforementioned insulated box has an outlet for discharging the aforementioned multiple filaments from the insulated box. As the aforementioned plate-shaped component, a second rectifier plate is disposed between the aforementioned outlet and the aforementioned heating roller, and the aforementioned sealing component is provided on the aforementioned second rectifier plate.

14. The spinning and stretching apparatus as described in claim 10, characterized in that, The heating roller described above is equipped with a preheating roller and a conditioning roller. The preheating roller heats the yarn before stretching, and the conditioning roller is located downstream of the preheating roller in the yarn travel direction and is set to have a higher temperature and higher speed than the preheating roller. As the aforementioned plate-shaped component, a partition plate is disposed between the aforementioned preheating roller and the aforementioned conditioning roller, and the aforementioned sealing component is provided on the aforementioned partition plate.

15. The spinning and stretching apparatus as described in claim 14, characterized in that, Multiple preheating rollers as described above are provided in the direction of the yarn's travel. The aforementioned sealing component is provided on the partition plate disposed between the final preheating roller and the aforementioned conditioning roller, wherein the final preheating roller is the preheating roller disposed on the downstream side of the yarn travel direction among the plurality of preheating rollers.

16. The spinning and stretching apparatus according to any one of claims 10 to 15, characterized in that, A connecting flow path is formed in the area where the multiple filaments are arranged along the axial direction, and the connecting flow path connects the low-temperature space on the side where the preheating roller is arranged closer to the partition plate to the high-temperature space on the side where the conditioning roller is arranged closer to the partition plate.

17. The spinning and stretching apparatus as described in claim 16, characterized in that, The aforementioned connecting flow path is formed between the wall surface of the aforementioned insulated box, which is parallel to the aforementioned specified direction, and the aforementioned partition plate.

18. The spinning and stretching apparatus as described in claim 17, characterized in that, A blocking component is provided, which extends from the wall of the heat preservation box parallel to the specified direction toward the outer peripheral surface of the heat preservation roller at a position closer to the heat preservation roller than the connecting flow path. The conditioning roller is rotated so that the portion of the outer peripheral surface of the conditioning roller that faces the front end of the blocking member is moved away from the connecting flow path.

19. The spinning and stretching apparatus as described in claim 16, characterized in that, A gate is provided for changing the flow area of ​​the aforementioned connected flow path.

20. The spinning and stretching apparatus according to any one of claims 10 to 15, characterized in that, The sealing member has a hollow sealing portion between the end of the plate-shaped member on the aforementioned side and the door portion.

21. The spinning and stretching apparatus as described in claim 16, characterized in that, The aforementioned connecting flow path is a flow path formed at a different position from the yarn channel between the aforementioned preheating roller and the aforementioned conditioning roller.

22. A spinning and stretching device, characterized in that, have: The wall of the insulated box, facing a specific direction, becomes the door. A heating roller is arranged in the heat preservation box with its axial direction parallel to the aforementioned specified direction, and multiple threads are wound around the outer circumferential surface of the heating roller in a state of being arranged along the aforementioned axial direction. A plate-shaped component protrudes from the wall of the insulated box on the opposite side of the aforementioned predetermined direction toward the aforementioned side, and is separately disposed from the aforementioned door in the closed state, thereby rectifying the airflow within the insulated box; and A sealing component blocks the gap between the end of the plate-shaped component on one side and the door in the closed state, preventing uneven airflow within the heat preservation box along the axial direction of the heating roller. The aforementioned sealing component is an elastic component. The sealing member has a hollow sealing portion between the end of the plate-shaped member on the aforementioned side and the door portion.

23. The spinning and stretching apparatus as described in claim 22, characterized in that, An inlet is formed on the aforementioned insulated box for introducing the aforementioned multiple filaments into the insulated box. As the aforementioned plate-shaped component, a first rectifier plate is disposed between the aforementioned inlet and the aforementioned heating roller, and the aforementioned sealing component is provided on the aforementioned first rectifier plate.

24. The spinning and stretching apparatus as described in claim 22 or 23, characterized in that, The aforementioned insulated box has an outlet for discharging the aforementioned multiple filaments from the insulated box. As the aforementioned plate-shaped component, a second rectifier plate is disposed between the aforementioned outlet and the aforementioned heating roller, and the aforementioned sealing component is provided on the aforementioned second rectifier plate.

25. The spinning and stretching apparatus as described in claim 22 or 23, characterized in that, The heating roller described above is equipped with a preheating roller and a conditioning roller. The preheating roller heats the yarn before stretching, and the conditioning roller is located downstream of the preheating roller in the yarn travel direction and is set to have a higher temperature and higher speed than the preheating roller. As the aforementioned plate-shaped component, a partition plate is disposed between the aforementioned preheating roller and the aforementioned conditioning roller, and the aforementioned sealing component is provided on the aforementioned partition plate.

26. The spinning and stretching apparatus as described in claim 25, characterized in that, Multiple preheating rollers as described above are provided in the direction of the yarn's travel. The aforementioned sealing component is provided on the partition plate disposed between the final preheating roller and the aforementioned conditioning roller, wherein the final preheating roller is the preheating roller disposed on the downstream side of the yarn travel direction among the plurality of preheating rollers.

27. The spinning and stretching apparatus as described in claim 25, characterized in that, A connecting flow path is formed in the area where the multiple filaments are arranged along the axial direction, and the connecting flow path connects the low-temperature space on the side where the preheating roller is arranged closer to the partition plate to the high-temperature space on the side where the conditioning roller is arranged closer to the partition plate.

28. The spinning and stretching apparatus as described in claim 27, characterized in that, The aforementioned connecting flow path is a flow path formed at a different position from the yarn channel between the aforementioned preheating roller and the aforementioned conditioning roller.

29. The spinning and stretching apparatus as described in claim 27, characterized in that, The aforementioned connecting flow path is formed between the wall surface of the aforementioned insulated box, which is parallel to the aforementioned specified direction, and the aforementioned partition plate.

30. The spinning and stretching apparatus as described in claim 29, characterized in that, A blocking component is provided, which extends from the wall of the heat preservation box parallel to the specified direction toward the outer peripheral surface of the heat preservation roller at a position closer to the heat preservation roller than the connecting flow path. The conditioning roller is rotated so that the portion of the outer peripheral surface of the conditioning roller that faces the front end of the blocking member is moved away from the connecting flow path.

31. The spinning and stretching apparatus as described in claim 27, characterized in that, A gate is provided for changing the flow area of ​​the aforementioned connected flow path.

32. The spinning and stretching apparatus as described in claim 22 or 23, characterized in that, The aforementioned sealing component is installed on the aforementioned plate-shaped component.

33. The spinning and stretching apparatus as described in claim 32, characterized in that, The aforementioned sealing member extends along the longitudinal direction of the end of one side of the aforementioned plate-shaped member. The sealing component described above has a fixing part with a U-shaped cross-section that is orthogonal to the direction of the long side.

34. The spinning and stretching apparatus as described in claim 33, characterized in that, The aforementioned fixing part has: The U-shaped section, with its cross-section orthogonal to the aforementioned long side direction, is U-shaped; and The metal component, capable of plastic deformation, is arranged along the U-shape of the aforementioned U-shaped portion. When the U-shaped portion is deformed to allow the plate-shaped component to be clamped through the U-shaped portion, the metal component undergoes plastic deformation.

35. The spinning and stretching apparatus as described in claim 34, characterized in that, The aforementioned fixing part also has a claw portion protruding towards the inside of the aforementioned U-shaped part.

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