Cooling device, spinning system and spinning method

Abstract

The invention discloses a cooling device, a spinning system and a spinning method. A spinning cylinder allowing melt tows to penetrate through penetrates through a length-adjustable slow cooling channel of a slow cooling assembly, then penetrates through a through hole, communicating with one end of the slow cooling channel, in a supporting part of an air cooling assembly, and extends out of the outlet end of the through hole to be opposite to an air outlet part in the air cooling assembly; and overall cooling and curing of melt spinning are achieved. The length of the slow cooling channel is adjustable, the slow cooling distance corresponding to melt spinning is adjustable, the cooling device further comprises an air blocking structure which is arranged on the air outlet part and extends from one side of the air outlet part to the other side of the air outlet part in the radial direction of the through hole, and the air outlet area of the air outlet part can be changed so that the air cooling distance can be changed. The slow cooling distance and the air cooling distance corresponding to the melt tows can be changed, chemical fibers with different slow cooling and air cooling distances can be used for cooling, the universality of the cooling device can be greatly improved, and the technical problem that the universality of the cooling device in melt spinning is not ideal enough is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of chemical fiber manufacturing, and in particular relates to a cooling device, a spinning system and a spinning method. Background Art

[0002] Melt spinning is a method for forming chemical fibers. In the process of preparing chemical fibers by melt spinning, after the melt is extruded from the spinneret to form a melt bundle, the melt bundle needs to be cooled and solidified to form a primary fiber before subsequent processing.

[0003] At present, the cooling and solidification of the melt depends on a cooling device, but a cooling device is usually only applicable to the cooling and solidification of one type of chemical fiber and is difficult to be applied to the preparation of different types of chemical fibers. The versatility of the cooling device is not ideal. Summary of the invention

[0004] The present application aims to at least to some extent solve the technical problem that the versatility of the cooling device in melt spinning is not ideal. To this end, the present application provides a cooling device, a spinning system and a spinning method.

[0005] The present application provides a cooling device, comprising:

[0006] A slow cooling component is provided with a slow cooling channel with adjustable length;

[0007] The air cooling component is provided with a connected support portion and an air outlet portion, the support portion is located between the slow cooling component and the air outlet portion, the support portion is provided with a through hole with two ends respectively being an inlet end and an outlet end, the inlet end is connected to one end of the slow cooling channel, and the air outlet portion is used for air outlet and is located on one side of the outlet end;

[0008] The wind shielding structure is arranged at the wind outlet portion and is spaced apart from the supporting portion along the axial direction of the through hole.

[0009] In some or certain embodiments, the wind shielding structure is detachably connected to the air outlet portion, and along the radial direction of the through hole, the wind shielding structure extends from one side of the air outlet portion to the other side of the air outlet portion.

[0010] In some or certain embodiments, the wind shielding structure comprises:

[0011] a connecting portion, connected to the air outlet portion and spaced apart from the supporting portion along the axial direction of the through hole;

[0012] The moving part is movably arranged on a side of the connecting part close to the supporting part, and the moving part reciprocates relative to the connecting part to approach or move away from the supporting part.

[0013] In some or certain embodiments, the slow cooling component comprises:

[0014] The slow cooling component is supported on the supporting part and includes at least two slow cooling parts connected in a stacked manner. The slow cooling part is provided with a slow cooling hole. At least two of the slow cooling holes are axially connected to form the slow cooling channel.

[0015] In some or certain embodiments, at least two of the slow cooling parts are divided into at least one heat-insulating slow cooling part and a temperature-adjusting slow cooling part with adjustable temperature, and the heat-insulating slow cooling parts are all located between the supporting part and the temperature-adjusting slow cooling part.

[0016] In some or certain embodiments, the heat-insulating and slow-cooling component is movably disposed on the supporting portion along the radial direction of the through hole.

[0017] The present application provides a spinning system, comprising:

[0018] A cooling device as described above;

[0019] The spinning cylinder passes through the slow cooling channel and the through hole in sequence.

[0020] In some or certain embodiments, the spinning system further comprises:

[0021] A first fixing member and a second fixing member are spaced apart, the cooling device is arranged between the first fixing member and the second fixing member, and the spinning cylinder passes through the first fixing member, the slow cooling channel, the through hole and the second fixing member in sequence.

[0022] In some or certain embodiments, the cooling device is movably disposed on the second fixing member along the axial direction of the spinning cylinder.

[0023] The present application also provides a spinning method, which is implemented by using the cooling device as described above, and the spinning method comprises:

[0024] According to the type of chemical fiber to be manufactured, the distance between the wind shielding structure and the supporting part, and the length of the slow cooling channel are adjusted.

[0025] Advantageous effects provided by one or more embodiments of the present application:

[0026] The spinning cylinder through which the melt filament bundle passes in melt spinning can pass through the length-adjustable slow cooling channel of the slow cooling component, and then pass through the through hole in the support part of the air cooling component whose entrance end is connected to one end of the slow cooling channel. Since the support part is located between the slow cooling component and the air outlet part, and the air outlet part is located on one side of the outlet end of the through hole, the part of the spinning cylinder from the outlet end of the through hole can be opposite to the air outlet part, and the air outlet part used for air outlet can be used to air cool the melt filament bundle in the spinning cylinder, thereby completing the basic cooling requirements for melt spinning. The length of the slow cooling channel is adjustable, and adjusting the length of the slow cooling channel can change the slow cooling distance of the melt filament bundle, so as to meet the requirements of different slow cooling distances for melt filament bundles of different chemical fibers. The cooling device also includes a windshield structure which is arranged at the air outlet and extends along the radial direction of the through hole from one side of the air outlet to the other side of the air outlet. The windshield structure can change the interval between the air outlet and the support portion by partially blocking the air outlet, so as to change the interval of cooling air received by the spinning cylinder. The air cooling distance that the melt bundle in the spinning cylinder will receive is naturally changed. The slow cooling distance and air cooling distance corresponding to the melt bundle can be changed to be suitable for the preparation of various chemical fibers with different requirements for the slow cooling distance and air cooling. The versatility of the cooling device can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a cooling device in some embodiments or certain embodiments of the present application is shown.

[0029] Figure 2 A side view of a cooling device in some embodiments or certain embodiments of the present application is shown.

[0030] Figure 3 A structural schematic diagram of a windshield structure in some embodiments or certain embodiments of the present application is shown.

[0031] Figure 4 A schematic diagram of another windshield structure in some embodiments or certain embodiments of the present application is shown.

[0032] Figure 5 A top view of a cooling device in some embodiments or certain embodiments of the present application is shown.

[0033] Figure 6 A schematic structural diagram of another cooling device in some embodiments or certain embodiments of the present application is shown.

[0034] Figure 7 A schematic structural diagram of another cooling device in some embodiments or certain embodiments of the present application is shown.

[0035] Figure 8 A schematic structural diagram of a spinning system in some embodiments or certain embodiments of the present application is shown.

[0036] Fig. 9 A flow chart of a spinning method in some embodiments or certain embodiments of the present application is shown.

[0037] Explanation of the reference numerals in the accompanying drawings: 1. slow cooling assembly; 11. slow cooling channel; 12. slow cooling part; 121. slow cooling portion; 1211. temperature regulating slow cooling portion; 1212. heat-insulating slow cooling portion; 122. annular sealing gasket; 123. guide wheel; 124. temperature sensor; 13. bracket; 2. air cooling assembly; 21. supporting portion; 211. through hole; 2111. entrance end; 2112. exit end; 22. air outlet portion; 221. connecting hole; 23. guide rail; 231. stop plate; 24. main body; 241. chamber; 25. air regulating valve; 26. first diffusion structure; 27. second diffusion structure; 3. wind shielding structure; 31. connecting portion; 32. moving portion; 10. spinning cylinder; 20. first fixing member; 30. second fixing member; 40. telescopic cylinder; 50. guiding mechanism; 100. spinneret. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] In the related art, the cooling and solidification of the melt in melt spinning depends on the spinning system. The spinning system includes a windless zone and a side-blowing zone. The melt will pass through the windless zone and the side-blowing zone of the spinning system in sequence to complete cooling and solidification. The windless zone of some spinning systems can be adjusted, but the side-blowing distance of the side-blowing zone is usually fixed, so that although the spinning system can be applied to different types of spinning, the improvement of the versatility of the spinning system is relatively limited, and the versatility of the spinning system is not high enough. There is a technical problem that the versatility of the spinning system is still not ideal. The embodiments of the present application provide a cooling device, a spinning system and a spinning method, which can at least solve the above technical problems to a certain extent.

[0043] The present application will be described below with reference to the accompanying drawings:

[0044] Figure 1 A schematic diagram of the structure of a cooling device in some embodiments or certain embodiments of the present application is shown. Figure 2 A side view of a cooling device in some embodiments or certain embodiments of the present application is shown, with reference to Figure 1 , 2 , an embodiment of the present application provides a cooling device, comprising:

[0045] The slow cooling component 1 is provided with a slow cooling channel 11 with adjustable length.

[0046] The air cooling component 2 is provided with a connected support portion 21 and an air outlet portion 22. The support portion 21 is located between the slow cooling component 1 and the air outlet portion 22. The support portion 21 is provided with a through hole 211 with two ends respectively being an inlet end 2111 and an outlet end 2112. The inlet end 2111 is connected to one end of the slow cooling channel 11. The air outlet portion 22 is used for air outlet and is located on one side of the outlet end 2112.

[0047] The wind shielding structure 3 is disposed on the wind outlet portion 22 and spaced apart from the supporting portion 21 along the axial direction of the through hole 211 .

[0048] The spinning cylinder 10 for the melt filament bundle to pass through in the melt spinning can pass through the length-adjustable slow cooling channel 11 of the slow cooling component 1, and then pass through the through hole 211 in the support part 21 of the air cooling component 2, which is connected to one end of the slow cooling channel 11 at the entry end 2111. Since the support part 21 is located between the slow cooling component 1 and the air outlet part 22, and the air outlet part 22 is located on the side of the outlet end 2112 of the through hole 211, the part of the spinning cylinder 10 from the outlet end 2112 of the through hole 211 can be opposite to the air outlet part 22, and the air outlet part 22 used for air outlet can air-cool the melt filament bundle in the spinning cylinder 10, thereby completing the basic cooling requirements for melt spinning. The length of the slow cooling channel 11 is adjustable, and adjusting the length of the slow cooling channel 11 can change the slow cooling distance of the melt filament bundle, so as to meet the requirements of different slow cooling distances for the melt filament bundles of different chemical fibers. The cooling device also includes a wind shield structure 3 which is arranged at the air outlet 22 and extends along the radial direction of the through hole 211 from one side of the air outlet 22 to the other side of the air outlet 22. The wind shield structure 3 can change the interval between the air outlet 22 and the support portion 21 and the wind shield structure 3 by partially blocking the air outlet 22, so as to change the interval of cooling air received by the spinning cylinder 10. The air cooling distance that the melt bundle in the spinning cylinder 10 will receive is naturally changed. The slow cooling distance and the air cooling distance corresponding to the melt bundle can be changed to be suitable for the preparation of various chemical fibers with different requirements for the slow cooling distance and air cooling. The versatility of the cooling device can be greatly improved.

[0049] It should be noted that for ease of understanding, Figure 1 The spinneret 100 is shown in FIG. Figure 2 The side views of the two drawings all show the structure of the spinning cylinder 10, and the melt is extruded from the spinneret 100 and then enters the spinning cylinder 10. The length interval corresponding to the slow cooling channel 11 in the slow cooling component 1 can be configured as a windless zone in melt spinning, and the melt bundle is cooled and shaped in the windless zone.

[0050] Figure 3 A schematic diagram of a windshield structure in some embodiments or certain embodiments of the present application is shown, with reference to Figure 1 and Figure 3 In some or certain embodiments, the wind shielding structure 3 is detachably connected to the air outlet portion 22 , and along the radial direction of the through hole 211 , the wind shielding structure 3 extends from one side of the air outlet portion 22 to the other side of the air outlet portion 22 .

[0051] The wind shield structure 3 is detachably connected to the air outlet 22, which can facilitate the connection and disassembly of the wind shield structure 3 and the air outlet 22. The wind shield structure 3 can be installed to block the air outlet 22 to reduce the air outlet area of ​​the air outlet 22 and reduce the air cooling distance. The wind shield structure 3 can also be disassembled, and the air outlet 22 is not blocked. The air outlet area of ​​the air outlet 22 is large, and the air cooling distance received by the spinning cylinder 10 is long. Along the radial direction of the through hole 211, the wind shield structure 3 extends from one side of the air outlet 22 to the other side of the air outlet 22, which has a better shielding effect on the position where no air outlet is required, and the air cooling of the spinning cylinder 10 is more stable.

[0052] In some or certain embodiments, the wind shielding structure 3 and the air outlet portion 22 may be detachably connected by fasteners, and the air outlet portion 22 may be provided with a plurality of connection holes 221 spaced apart along the axial direction of the through hole 211. For example, fasteners such as bolts may pass through the wind shielding structure 3 and be inserted into some of the connection holes 221 to adjust the spacing between the wind shielding structure 3 and the supporting portion 21, change the air outlet area of ​​the air outlet portion 22, and thus change the air cooling distance.

[0053] In some or certain embodiments, the air outlet portion 22 may have a length direction extending along the axial direction of the through hole 211, one end of the air outlet portion 22 in the length direction is connected to the support portion 21, and the wind shielding structure 3 is provided at the other end of the air outlet portion 22 in the length direction. The wind shielding structure 3 may be plate-shaped and may cover a portion of the surface of the air outlet portion 22. It is convenient to prepare and can be applicable to the preparation of different chemical fibers.

[0054] In some or certain embodiments, the wind shield structure 3 may also be arranged in the middle of the length direction of the air outlet portion 22, etc. The cooling device may also include a plurality of wind shield structures 3 of different sizes, and the wind shield structures 3 of corresponding sizes may be installed at corresponding positions of the air outlet portion 22 as required. The spacing between the wind shield structure 3 and the support portion 21 may be sufficient to meet the air cooling of the spinning cylinder 10 of a certain length.

[0055] Figure 4 FIG. 1 shows another windshield structure schematic diagram of some embodiments or certain embodiments of the present application, referring to FIG. Figure 4 In some or some embodiments, the wind shield structure 3 includes:

[0056] The connecting portion 31 is connected to the air outlet portion 22 and is spaced apart from the supporting portion 21 along the axial direction of the through hole 211 .

[0057] The moving portion 32 is movably disposed on a side of the connecting portion 31 close to the supporting portion 21 , and the moving portion 32 reciprocates relative to the connecting portion 31 to approach or move away from the supporting portion 21 .

[0058] The connecting portion 31 can block part of the air outlet, and the movable portion 32 can be movably arranged on a side of the connecting portion 31 close to the supporting portion 21, and the movable portion 32 can move back and forth relative to the connecting portion 31 to be close to or away from the supporting portion 21. The movable portion 32 can reciprocate relative to the connecting portion 31 to be close to the supporting portion 21, which can increase the area of ​​the air outlet portion 22 that the wind shielding structure 3 can increase. By controlling the movement of the movable portion 32 relative to the connecting portion 31, the distance between the wind shielding structure 3 and the supporting portion 21 can be quickly adjusted to change the air cooling distance, which is also beneficial to improving the versatility of the cooling device.

[0059] In some or certain embodiments, the connecting portion 31 may be spaced apart from the supporting portion 21 along the axial direction of the through hole 211, the moving portion 32 may be disposed on a side of the connecting portion 31 close to the supporting portion 21, and the moving portion 32 reciprocates relative to the connecting portion 31 along the axial direction of the through hole 211, so as to facilitate the control of the adjustment of the air cooling distance.

[0060] In some or certain embodiments, the connecting portion 31 and the moving portion 32 may be plate-shaped, and the movement of the moving portion 32 relative to the connecting portion 31 may be achieved by driving a cylinder, etc. The connecting portion 31 may also be provided with a groove for accommodating the moving portion 32 (not shown in the figure).

[0061] In some or certain embodiments, the air cooling component 2 may be a side blowing component for side blowing the spinning tube 10. The air cooling component 2 may include an air source carrier (not shown in the figure), a body 24 and an air regulating valve 25. The body 24 may be provided with a plurality of air ducts. The output end of the air source carrier may be connected to one end of the plurality of air ducts through a first diffusion structure 26 including a porous plate and a filter screen. The output end is provided with an air regulating valve 25 to adjust the air flow rate. The body 24 may be provided with a porous area (the holes of the porous area are not shown in the figure) connected to the other end of the plurality of air ducts. The porous area may be configured as an air outlet 22. The body 24 also includes a second diffusion structure 27 located in the chamber 241 and corresponding to the porous area. The second diffusion structure 27 includes a filter screen and a honeycomb mesh. The gas entering the output end of the air source carrier may flow out from the air outlet 22 for side blowing. The telescopic cylinder 40 may be connected to the body 24.

[0062] In some or certain embodiments, the slow cooling component 1 may include:

[0063] The slow cooling member 12 is supported on the supporting portion 21 and includes at least two slow cooling portions 121 connected in a stacked manner. The slow cooling portion 121 is provided with a slow cooling hole (not shown in the figure). At least two slow cooling holes are axially connected to form a slow cooling channel 11.

[0064] The slow cooling part 12 in the slow cooling component 1 is supported on the support part 21, which is convenient for the disassembly, assembly and placement of the slow cooling component 1. The slow cooling part 12 includes at least two stacked slow cooling parts 121, and at least two slow cooling holes form a slow cooling channel 11. The length of the slow cooling channel 11 can be adjusted by adjusting the number of slow cooling parts 121 in the slow cooling part 12.

[0065] In some or certain embodiments, the cross section of the slow cooling member 12 may also be annular or a frame-shaped structure with a closed tail, and the slow cooling member 12 may also include an annular sealing pad 122 between adjacent stacked slow cooling portions 121 to improve the sealing effect between the slow cooling portions 121. The elastic coefficient of the annular sealing pad 122 may be relatively large, and the sealing effect is better. One end of the slow cooling member 12 may be supported on the support portion 21 and contact and seal with the support portion 21, and the other end of the annular member may be used for contact and seal with the fixing member in the spinneret 100 or the spinning system or the spinning equipment. The slow cooling effect on the spinning cylinder 10 can be guaranteed.

[0066] In some or certain embodiments, at least two slow cooling parts 121 can be annular heaters provided with temperature sensors 124, and at least two slow cooling parts 121 can also be heat preservation tubes. Both can achieve slow cooling effect, and the annular heater can also adjust the temperature in the slow cooling channel 11.

[0067] In some or certain embodiments, the slow cooling member 12 may also be a retractable cylindrical structure. The slow cooling member 12 can adjust the length of its inner hole by retracting. The inner hole of the slow cooling member 12 may be configured as the slow cooling channel 11 .

[0068] Figure 5 A top view of a cooling device in some embodiments or certain embodiments of the present application is shown, with reference to Figure 5 In some or certain embodiments, the slow cooling assembly 1 may include a plurality of slow cooling members 12 connected in parallel, and the support portion 21 may also be provided with through holes 211 corresponding to the plurality of slow cooling members 12. Each slow cooling member 12 and the corresponding through hole 211 may pass through a corresponding spinning cylinder 10, which can improve the spinning efficiency.

[0069] Figure 6 A schematic diagram showing the structure of another cooling device in some embodiments or certain embodiments of the present application is shown. Figure 7 FIG. 1 shows a schematic diagram of the structure of another cooling device in some embodiments or certain embodiments of the present application, referring to FIG. Figure 4 to Figure 7 In some or certain embodiments, at least two slow cooling parts 121 can also be divided into at least one heat preservation slow cooling part 1212 and a temperature-adjustable temperature-adjusting slow cooling part 1211, and the heat preservation slow cooling part 1212 is located between the support part 21 and the temperature-adjusting slow cooling part 1211.

[0070] The heat-insulating slow-cooling section 1212 is located between the supporting section 21 and the temperature-adjusting slow-cooling section 1211. Both the temperature-adjusting slow-cooling section 1211 and the heat-insulating slow-cooling section 1212 can realize the slow cooling of the melt bundle in the spinning cylinder 10. The temperature-adjusting slow-cooling section 1211 can also adjust the cooling temperature of the spinning cylinder 10, which is also beneficial to adjusting the temperature regulation efficiency of the melt bundle in the slow-cooling distance.

[0071] In some or certain embodiments, in the same slow cooling member 12, the heat preservation slow cooling part 1212 can be a heat preservation cylinder, the temperature regulating slow cooling part 1211 can be a ring-shaped heater or other structures, and all the heat preservation slow cooling parts 1212 can be located between the support part 21 and the temperature regulating slow cooling part 1211. The temperature regulating effect is good.

[0072] In some or certain embodiments, the heat-insulating slow-cooling portion 1212 may be movably disposed on the support portion 21 along the radial direction of the through hole 211. The heat-insulating slow-cooling portion 1212 may be movably disposed on the support portion 21 along the radial direction of the through hole 211, which can facilitate maintenance, especially for a spinning system with limited space, the space at both ends of the slow-cooling channel 11 may be small, so moving the heat-insulating slow-cooling portion 1212 laterally along the radial direction of the through hole 211 can facilitate the disassembly and assembly of the slow-cooling component 1, and also facilitate the maintenance and cleaning of the related structures of the slow-cooling component 1. When the temperature-adjusting slow-cooling portion 1211 is stacked and connected to the heat-insulating slow-cooling portion 1212, the temperature-adjusting slow-cooling portion 1211 can be moved and disassembled together with the heat-insulating slow-cooling portion 1212.

[0073] In some or certain embodiments, the slow cooling member 12 may further include a guide wheel 123 disposed on the heat preservation slow cooling portion 1212, and the air cooling assembly 2 may further include a guide rail 23 disposed on the support portion 21, the length direction of the guide rail 23 extends along the radial direction of the through hole 211, and the guide wheel 123 of the heat preservation slow cooling portion 1212 may be rollably disposed on the guide rail 23, and the guide wheel 123 may move along the length direction of the guide rail 23. The movement of the guide wheel 123 relative to the guide rail 23 can be effectively controlled, and the maintenance and disassembly efficiency is improved.

[0074] In some or certain embodiments, when the slow cooling assembly 1 includes a plurality of slow cooling parts 12 , the plurality of slow cooling parts 12 may be connected to the bracket 13 , the guide wheel 123 may be rotatably disposed on the bracket 13 , and the bracket 13 drives the guide wheel 123 to move along the guide rail 23 .

[0075] refer to Figure 5 In some or some embodiments, the guide rail 23 is further provided with a positioning recess (not shown in the figure) and a stop plate 231. When the guide wheel 123 moves to the positioning recess, the heat preservation and slow cooling hole of the heat preservation and slow cooling part 1212 is connected with the through hole 211 of the support part 21. The stop plate 231 can be provided at one end of the guide rail 23 and is used to abut against the heat preservation and slow cooling part 1212. Rapid positioning of the heat preservation and slow cooling part 1212 can be achieved.

[0076] Based on the same inventive concept, the present application also provides Figure 8 , Figure 8 A schematic diagram of the structure of a spinning system in some embodiments or certain embodiments of the present application is shown, with reference to Figure 8 , the present application also provides a spinning system, comprising:

[0077] Cooling device as described above.

[0078] The spinning cylinder 10 passes through the slow cooling channel 11 and the through hole 211 in sequence.

[0079] The structure of the cooling device and its corresponding technical effects can be referred to above, and will not be described here in detail. The spinning cylinder 10 can be used for the melt bundle to pass through. During the process of the melt bundle passing through the spinning cylinder 10, slow cooling and air cooling can be performed to complete the cooling and solidification of the melt bundle.

[0080] In some or certain embodiments, the spinning system may further include:

[0081] The first fixing member 20 and the second fixing member 30 are spaced apart, and the cooling device is arranged between the first fixing member 20 and the second fixing member 30 . The spinning cylinder 10 passes through the first fixing member 20 , the slow cooling channel 11 , the through hole 211 and the second fixing member 30 in sequence.

[0082] The spaced first fixing member 20 and the second fixing member 30 can provide support for the cooling device and the spinning cylinder 10 , thereby facilitating the installation and use of the cooling device and the spinning cylinder 10 .

[0083] In some or certain embodiments, the cooling device is movably disposed on the second fixing member 30 along the axial direction of the spinning cylinder 10. The overall position of the cooling device can be adjusted to adjust the cooling of the spinning cylinder 10 by the cooling device as a whole, and the processing and manufacturing of more types of chemical fibers can also be completed. The slow cooling component 1 in the cooling device can also be abutted against the first fixing member 20 to improve the sealing effect.

[0084] In some or certain embodiments, the temperature regulating and slow cooling part 1211 in the cooling device can be fixedly and detachably connected to the first fixing part 20, and the heat preservation and slow cooling part 1212 can be movably arranged on the support part 21 along the radial direction of the through hole 211. The spinning system can also include a telescopic cylinder 40, etc., whose two ends are respectively connected to the cooling device and the second fixing part 30, and the telescopic direction extends along the axial direction of the spinning cylinder 10. With this structure, the sealing between the temperature regulating and slow cooling part 1211 and the first fixing part 20 or the spinneret 100 is good, and the cooling device moves along the axial direction of the spinning cylinder 10 relative to the second fixing part 30, and the heat preservation cooling cylinder or the support part 21 can also be abutted with the temperature regulating and slow cooling part 1211 to complete the sealing, which is fast to adjust and has a good sealing effect. It can also adjust the distance of the slow cooling channel 11 according to the chemical fiber to be manufactured. Due to the effective space, the heat preservation and slow cooling part 1212 can move laterally, and cooperate with the telescopic movement of the telescopic cylinder 40, it can be quickly disassembled and assembled, and the cleaning and maintenance of the relevant structures can be completed.

[0085] In some or certain embodiments, the spinning system may further include a guide mechanism 50, which may be used to guide the telescopic rod of the telescopic rod so that the telescopic rod moves along the axial direction of the spinning cylinder 10. The accuracy of the moving position of the cooling device may be improved. The guide mechanism 50 may be set as a roller, a track guide mechanism 50, or a slider, a guide rail 23 guide mechanism 50 according to requirements. This application will not go into details.

[0086] In some or certain embodiments, the second fixing member 30 may also be in the shape of a bracket, the first fixing member 20 may be a spinning box or a platform with a fixed position, etc., the spinneret 100 may be fixedly connected to the spinning box, etc. In the spinning system, both ends of the telescopic cylinder 40 may also be connected to a cooling device and the ground, respectively.

[0087] Based on the same inventive concept, the present application also provides Fig. 9 , Fig. 9 A spinning method flow chart of some embodiments or certain embodiments of the present application is shown, with reference to Fig. 9 The present application also provides a spinning method, which is implemented by using the cooling device as described above, and the spinning method comprises:

[0088] S101: According to the type of chemical fiber to be manufactured, the distance between the wind shield structure and the support part, and the length of the slow cooling channel are adjusted.

[0089] The structure of the cooling device and its corresponding technical effects are not described here. According to the type of chemical fiber to be manufactured, the distance between the wind shield structure and the support part, as well as the length of the slow cooling channel, can be adjusted to change the air cooling distance and slow cooling distance corresponding to the melt bundle, so as to be suitable for the preparation of various chemical fibers with different requirements for slow cooling distance and air cooling, and the versatility of the cooling device can be greatly improved.

[0090] In some or certain embodiments, the distance between the support portion and the wind shielding structure is 5 to 20 times the length of the slow cooling channel. This method is applicable to the manufacture of most chemical fibers.

[0091] In some or certain embodiments, for polyester fiber, the spinning speed of conventional polyester civilian yarn can make the distance between the support part and the windshield structure be 1400-1800 mm, the slow cooling part includes at least two slow cooling parts that are insulation cylinders, and the length of the slow cooling channel is 90 mm; the spinning speed of conventional polyester industrial yarn can make the distance between the support part and the windshield structure be 1800-2000 mm, the slow cooling part includes at least one temperature regulating slow cooling part, and the length of the slow cooling channel is about 350 mm;

[0092] For nylon fiber, the spinning speed of conventional nylon civilian yarn can make the distance between the support part and the windshield structure 1400-1800mm, the slow cooling part includes at least two slow cooling parts which are heat preservation tubes, and the length of the slow cooling channel is 70mm; the spinning speed of conventional nylon industrial yarn can make the distance between the support part and the windshield structure 1800-2000mm, the slow cooling part includes at least one temperature regulating slow cooling part, and the length of the slow cooling channel is about 250mm;

[0093] For special mother silk fibers, the single filament fineness is relatively coarse, so the distance between the support part and the windshield structure can be 2000-2800mm, the slow cooling part includes at least one temperature regulating slow cooling part, and the length of the slow cooling channel is about 140mm. Some special varieties require the slow cooling part to include both the temperature regulating slow cooling part and the heat preservation slow cooling part.

[0094] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0095] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0096] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cooling device, characterized in that: include: A slow cooling component is provided with a slow cooling channel with adjustable length; The air cooling component is provided with a connected support portion and an air outlet portion, the support portion is located between the slow cooling component and the air outlet portion, the support portion is provided with a through hole with two ends respectively being an inlet end and an outlet end, the inlet end is connected to one end of the slow cooling channel, and the air outlet portion is used for air outlet and is located on one side of the outlet end; The wind shielding structure is arranged at the wind outlet portion and is spaced apart from the supporting portion along the axial direction of the through hole.

2. The cooling device according to claim 1, characterized in that: The wind shielding structure is detachably connected to the air outlet portion, and along the radial direction of the through hole, the wind shielding structure extends from one side of the air outlet portion to the other side of the air outlet portion.

3. The cooling device according to claim 1, characterized in that: The windshield structure comprises: a connecting portion, connected to the air outlet portion and spaced apart from the supporting portion along the axial direction of the through hole; The moving part is movably arranged on a side of the connecting part close to the supporting part, and the moving part reciprocates relative to the connecting part to approach or move away from the supporting part.

4. The cooling device according to any one of claims 1 to 3, characterized in that: The slow cooling component comprises: The slow cooling component is supported on the supporting part and includes at least two slow cooling parts connected in a stacked manner. The slow cooling part is provided with a slow cooling hole. At least two of the slow cooling holes are axially connected to form the slow cooling channel.

5. The cooling device according to claim 4, characterized in that: The at least two slow cooling parts are divided into at least one heat preservation slow cooling part and a temperature-adjusting slow cooling part with adjustable temperature, and the heat preservation slow cooling parts are all located between the supporting part and the temperature-adjusting slow cooling part.

6. The cooling device according to claim 5, characterized in that: The heat-insulating and slow-cooling component is movably arranged on the supporting portion along the radial direction of the through hole.

7. A spinning system, characterized in that: include: The cooling device according to any one of claims 1 to 6; The spinning cylinder passes through the slow cooling channel and the through hole in sequence.

8. The spinning system according to claim 7, characterized in that The spinning system also includes: A first fixing member and a second fixing member are spaced apart, the cooling device is arranged between the first fixing member and the second fixing member, and the spinning cylinder passes through the first fixing member, the slow cooling channel, the through hole and the second fixing member in sequence.

9. The spinning system according to claim 8, characterized in that The cooling device is movably arranged on the second fixing member along the axial direction of the spinning cylinder.

10. A spinning method, characterized in that: The spinning method is implemented by using the cooling device according to any one of claims 1 to 6, wherein the spinning method comprises: According to the type of chemical fiber to be manufactured, the distance between the wind shielding structure and the supporting part, and the length of the slow cooling channel are adjusted.

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