Anti-crystallization self-cleaning high-temperature melt spinning nozzle device

Abstract

The present application relates to the technical field of spinning nozzle cleaning, and provides a crystallization-preventing self-cleaning high-temperature melt spinning nozzle device, which comprises a conveying pipe and a cleaning cylinder, a threaded sleeve one is fixedly connected to the lower side of the outer wall of the conveying pipe, a spinneret is fixedly connected to the bottom end of the conveying pipe, and a plurality of spray holes are formed in the outer side of the inner wall of the spinneret; a threaded surface one is arranged on the upper side of the inner wall of the cleaning cylinder, the cleaning cylinder is installed on the outer wall of the threaded sleeve one through the threaded surface one, a constant-temperature assembly is arranged on the lower side of the threaded sleeve one on the inner wall of the cleaning cylinder, an extension rod is rotatably connected to the middle inner wall of the bottom end of the cleaning cylinder, the upper and lower ends of the extension rod respectively penetrate through the inner and outer sides of the cleaning cylinder, and a scraping piece is arranged on the top of the extension rod. The device replaces the traditional manual disassembly and wiping cleaning mode, improves the work efficiency, avoids the damage of manual operation to the precision of the spray holes, effectively guarantees the spinning quality, and prolongs the service life of the spinning nozzle.

Description

Technical Field

[0001] This invention relates to the field of spinning nozzle cleaning technology, specifically to a self-cleaning high-temperature melt spinning nozzle device that prevents crystallization. Background Technology

[0002] Melt spinning is the core process for the preparation of chemical fibers. As the core forming component of spinning equipment, the spinning nozzle directly determines the fiber forming quality and production continuity. Its working principle is to uniformly extrude the high-temperature molten polymer through an array of micro-orifices. After cooling and stretching, it forms continuous fiber filaments. The spinning nozzle is subjected to high temperature and high viscosity melt scouring conditions for a long time. The orifice diameter is small and densely distributed. The flow state of the melt in the micro-orifices directly affects the spinning effect. A stable temperature environment and unobstructed orifice state are the core prerequisites for avoiding production defects such as broken fibers, fuzzy fibers, and uneven fineness, and ensuring the stable operation of spinning.

[0003] The shutdown and maintenance process of spinning equipment is a high-risk stage for nozzle crystallization and blockage. After the equipment is shut down, a small amount of residual melt remains inside the nozzle. This part of the melt loses its continuous extrusion power and remains in a static state. After leaving the stable constant temperature condition, it cools down rapidly and is very easy to crystallize, solidify and agglomerate, blocking the micro nozzles. At present, the industry mostly uses manual disassembly of the nozzle and wiping of the through holes to clean the residual material. The operation is cumbersome, time-consuming and labor-intensive. In addition, manual cleaning has the problems of incomplete cleaning and easy to scratch the nozzle. The residual trace melt will still crystallize and block the nozzle, which can easily lead to yarn breakage and waste yarn problems after the equipment is restarted, affecting production efficiency and nozzle life. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a self-cleaning high-temperature melt spinning nozzle device that prevents crystallization, replacing the traditional manual disassembly and wiping cleaning method, improving work efficiency, and avoiding damage to the nozzle precision caused by manual operation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a self-cleaning high-temperature melt spinning nozzle device for preventing crystallization, comprising a conveying pipe and a cleaning cylinder, wherein a threaded sleeve is fixedly connected to the lower side of the outer wall of the conveying pipe, and a spinneret is fixedly connected to the bottom end of the conveying pipe, wherein a plurality of spray holes are opened on the outer side of the inner wall of the spinneret.

[0006] The cleaning cylinder has a threaded surface on its upper inner wall. The cleaning cylinder is installed on the outer wall of the threaded sleeve through the threaded surface. A constant temperature component is installed on the inner wall of the cleaning cylinder below the threaded sleeve. An extension rod is rotatably connected to the inner wall of the bottom middle of the cleaning cylinder, and the upper and lower ends of the extension rod pass through the inner and outer sides of the cleaning cylinder, respectively. A scraper is installed at the top of the extension rod. A movable disc is sleeved on the upper outer wall of the extension rod. The outer wall of the movable disc is slidably connected to the lower inner wall of the cleaning cylinder. A dredging component is installed on the outer side of the top of the movable disc. A power box is fixedly connected to the outer side of the bottom of the cleaning cylinder. The power box is connected to the movable disc through a reciprocating component. The bottom end of the extension rod is rotatably connected to the bottom end of the inner wall of the power box. A battery pack is installed at the bottom end of the power box.

[0007] Preferably, the unblocking component includes a collection cylinder with the top of the movable disc corresponding to the spray hole. Each collection cylinder has a conical block on the upper side of its inner wall. Each conical block has a needle fixedly connected to its top. Each conical block has several perforated cavities on its inner wall. Each conical block has a limit ring fixedly connected to its outer wall at the top of the collection cylinder. Each collection cylinder has an elastic component on its inner wall.

[0008] Preferably, the elastic component includes a retaining plate fixedly connected to the lower side of the inner wall of the collecting cylinder, a push rod slidably connected to the middle of the inner wall of the retaining plate, a push block fixedly connected to the bottom end of the push rod, the outer wall of the push block being disposed on the inner wall of the middle part of the bottom end of the collecting cylinder, a spring fixedly connected to the bottom end of the retaining plate outside the push rod, the other end of the spring being fixedly connected to the top end of the push block, a push plate fixedly connected to the top end of the push rod, and the outer wall of the push plate being slidably connected to the inner wall of the collecting cylinder.

[0009] Preferably, the upper side of the inner wall of the collecting cylinder is provided with a threaded surface three, the outer wall of the conical block located below the limiting ring is provided with a threaded surface two, the outer side of the bottom end of the collecting cylinder is fixedly connected with a threaded sleeve two, the top of the movable disc located below the collecting cylinder is provided with threaded grooves in sequence, and the outer wall of the threaded sleeve two is provided on the inner wall of the threaded groove.

[0010] Preferably, the reciprocating assembly includes a top rod slidably connected to the inner wall of the right side of the bottom end of the cleaning cylinder. The top end of the top rod is fixedly connected to the right side of the bottom end of the movable disc. An elliptical frame is fixedly connected to the bottom end of the top rod. A traction block is provided on the inner wall of the elliptical frame. A transfer plate is fixedly connected to the right end of the traction block.

[0011] Preferably, a second motor is fixedly connected to the right end of the power box on one side of the adapter plate, and the driving end of the second motor passes through the inner wall of the power box and is fixedly connected to the middle of the right end of the adapter plate.

[0012] Preferably, the scraper includes a scraper strip fixedly connected to the top of the extension rod, and collection grooves are provided on both the left and right sides of the outer wall of the scraper strip.

[0013] Preferably, the constant temperature assembly includes a constant temperature flow channel fixedly connected to the inner wall of the cleaning cylinder below the threaded sleeve. The constant temperature flow channel is sleeved on the outer wall of the spinneret. An isolation plate is fixedly connected to the middle of the left side of the inner wall of the constant temperature flow channel. Liquid flow pipes are fixedly connected to both the front and rear parts of the left side of the outer wall of the constant temperature flow channel. The left end of each liquid flow pipe penetrates the outer side of the cleaning cylinder.

[0014] Preferably, a secondary bevel gear is fixedly connected to the lower part of the outer wall of the extension rod, and a motor is fixedly connected to the left end of the power box above the secondary bevel gear. The drive end of the motor passes through the inner wall of the power box and is fixedly connected to a crossbar.

[0015] Preferably, a main bevel gear is fixedly connected to the right end of the crossbar, and the bottom end of the outer diameter of the main bevel gear is meshed with the left end of the outer diameter of the secondary bevel gear.

[0016] This invention provides a self-cleaning high-temperature melt spinning nozzle device that prevents crystallization. It has the following beneficial effects:

[0017] 1. This invention uses heat-conducting oil circulating in a constant-temperature flow channel to continuously heat the spinneret at a constant temperature, preventing residual melt inside the nozzle from condensing and crystallizing due to cooling and settling. Simultaneously, with the cooperation of motor 2, adapter plate, traction block, elliptical frame, and top rod, the moving disc is driven to reciprocate up and down in the cleaning cylinder, causing the collecting cylinder and the needle at the top of the conical block to repeatedly penetrate and clear the nozzle, breaking the static state of the melt inside the hole, improving the fluidity of the melt, and the residual melt can be guided through the orifice cavity to the inside of the collecting cylinder and collected by the push plate, completing the cleaning of residual material inside the nozzle. This replaces the traditional manual disassembly and wiping cleaning method, improves work efficiency, avoids damage to the precision of the nozzle by manual operation, effectively ensures spinning quality, and extends the service life of the spinning nozzle.

[0018] 2. This invention uses a motor, a crossbar, a main bevel gear, and a secondary bevel gear to drive the scraper strip at the top of the extension rod to rotate against the lower surface of the spinneret, thereby scraping and cleaning the residual melt overflowing and accumulating at the nozzle port in all directions. The scraped residue can be collected along the scraper strip into the collection tank. This structure can make up for the cleaning blind spots around the nozzle and achieve a thorough cleaning of the entire spinneret. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a cross-sectional view of the cleaning cylinder of the present invention;

[0021] Figure 3 This is a schematic diagram of the conveying pipe structure of the present invention;

[0022] Figure 4 This is a cross-sectional view of the constant temperature flow channel of the present invention;

[0023] Figure 5 This is a cross-sectional view of the cleaning cylinder and power box of the present invention;

[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 This is a schematic diagram of the collection cylinder structure of the present invention;

[0026] Figure 8 This is a cross-sectional view of the collection cylinder of the present invention;

[0027] Figure 9 This is a schematic diagram of the scraper strip structure of the present invention.

[0028] In the diagram, 1. Conveying pipe; 2. Cleaning cylinder; 3. Power box; 4. Battery pack; 5. Threaded sleeve one; 6. Spinneret; 7. Thermostatic flow channel; 8. Movable disc; 9. Collection cylinder; 10. Scraper strip; 11. Spray nozzle; 12. Isolation plate; 13. Liquid flow pipe; 14. Threaded surface one; 15. Extension rod; 16. Motor one; 17. Motor two; 18. Adapter plate; 19. Traction block; 20. Elliptical frame; 21. Top rod; 22. Crossbar; 23. Main bevel gear; 24. Secondary bevel gear; 25. Threaded sleeve two; 26. Threaded groove; 27. Conical block; 28. Hole cavity; 29. ​​Limiting ring; 30. Through needle; 31. Threaded surface two; 32. Threaded surface three; 33. Push plate; 34. Fixing plate; 35. Push rod; 36. Propulsion block; 37. Spring; 38. Collection trough. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see the appendix Figure 1 -Appendix Figure 9 This invention provides a self-cleaning high-temperature melt spinning nozzle device for preventing crystallization, including a conveying pipe 1 and a cleaning cylinder 2. A threaded sleeve 5 is fixedly connected to the lower side of the outer wall of the conveying pipe 1, and a spinneret 6 is fixedly connected to the bottom end of the conveying pipe 1. A plurality of spray holes 11 are opened on the outer side of the inner wall of the spinneret 6.

[0032] The cleaning cylinder 2 has a threaded surface 14 on the upper side of its inner wall. The cleaning cylinder 2 is installed on the outer wall of the threaded sleeve 5 through the threaded surface 14. A constant temperature component is provided on the inner wall of the cleaning cylinder 2 below the threaded sleeve 5. An extension rod 15 is rotatably connected to the inner wall of the bottom middle part of the cleaning cylinder 2. The upper and lower ends of the extension rod 15 pass through the inner and outer sides of the cleaning cylinder 2, respectively. A scraper is provided at the top of the extension rod 15. A movable disc 8 is sleeved on the upper side of the outer wall of the extension rod 15. The outer wall of the movable disc 8 is slidably connected to the lower side of the inner wall of the cleaning cylinder 2. A dredging component is provided on the outer side of the top of the movable disc 8. A power box 3 is fixedly connected to the outer side of the bottom of the cleaning cylinder 2. The power box 3 is connected to the movable disc 8 through a reciprocating component. The bottom end of the extension rod 15 is rotatably connected to the bottom end of the inner wall of the power box 3. A battery pack 4 is provided at the bottom end of the power box 3.

[0033] To further explain, the conveying pipe 1 serves as a melt conveying channel, used to transport the high-temperature molten melt downwards to the spinneret 6. The threaded sleeve 5 is fixed to the outside of the conveying pipe 1, providing a threaded mounting reference for the cleaning cylinder 2. The spinneret 6 is the core component for fiber forming, achieving melt extrusion into filaments through an array of nozzles 11. The cleaning cylinder 2, with its threaded surface 14 engaging with the threaded sleeve 5, allows for quick assembly and disassembly. During manufacturing, handles can be added to both sides of the cleaning cylinder 2. A temperature control component is integrated inside the cleaning cylinder 2, allowing for the wrapping and temperature control of the spinneret 6. The extension rod 15 adopts a through-type rotating installation structure, which not only ensures the rotation support accuracy, but also allows for simultaneous scraping of materials. The movable disc 8 slides in conjunction with the inner wall of the cleaning cylinder 2, allowing for stable vertical sliding and driving the top unblocking component to complete the unblocking action corresponding to the spray hole 11. The power box 3 is used to install various transmission and drive components. The battery pack 4 provides independent power to the entire device. Together with the button panel located at the front of the power box 3, it controls the start and stop of the electric drive equipment. The battery pack 4 in the figure is only for illustration. In reality, a protective shell and related power lines need to be added.

[0034] The unblocking component includes a collection cylinder 9 with the top of the movable disc 8 corresponding to the nozzle 11. Each inner wall of the collection cylinder 9 has a conical block 27. Each conical block 27 has a needle 30 fixedly connected to its top. Each inner wall of the conical block 27 has several perforated cavities 28. Each outer wall of the conical block 27 is fixedly connected to a limit ring 29 at the top of the collection cylinder 9. Each inner wall of the collection cylinder 9 has an elastic component.

[0035] To further explain, multiple collecting cylinders 9 are arranged in a one-to-one correspondence with the nozzles 11. This arrangement can be used in actual production. The conical block 27 is installed on the upper part of the collecting cylinder 9, and the top needle 30 is set directly opposite the nozzle 11. The diameter of the nozzle 11 can be set from 0.2mm to 0.4mm, and the diameter of the needle 30 can be set from 0.12mm to 0.32mm. The collecting cylinder 9 and the needle 30 can pass through the nozzle 11 when the movable plate 8 moves up and down, so as to disturb and clear the residual material in the hole. The inclined surface of the conical block 27 guides the residual material to flow into the cavity 28, so that the melt flows smoothly into the collecting cylinder 9. The limiting ring 29 plays an assembly limiting role. The elastic component is integrated inside the collecting cylinder 9, which facilitates the subsequent ejection and unloading of the collected melt.

[0036] The elastic component includes a retaining plate 34 fixedly connected to the lower side of the inner wall of the collecting cylinder 9. A push rod 35 is slidably connected to the middle of the inner wall of the retaining plate 34. A push block 36 is fixedly connected to the bottom end of the push rod 35. The outer wall of the push block 36 is set on the inner wall of the middle of the bottom end of the collecting cylinder 9. A spring 37 is fixedly connected to the bottom end of the retaining plate 34 outside the push rod 35. The other end of the spring 37 is fixedly connected to the top end of the push block 36. A push plate 33 is fixedly connected to the top end of the push rod 35. The outer wall of the push plate 33 is slidably connected to the inner wall of the collecting cylinder 9.

[0037] To further explain, the retaining plate 34 is fixed inside the collecting cylinder 9, providing vertical sliding guide support for the push rod 35. The spring 37 is normally kept in an elastic and tight state. Pressing the push block 36 can drive the push rod 35 and the push plate 33 to move upwards simultaneously. After being released, it automatically resets with the help of the elastic force of the spring 37. By sliding the push plate 33 vertically, the residual melt accumulated in the collecting cylinder 9 can be pushed upwards, which is convenient for manual cleaning and unloading.

[0038] The upper side of the inner wall of the collecting cylinder 9 is provided with threaded surface 32, the outer wall of the conical block 27 is provided with threaded surface 31 located below the limiting ring 29, the outer side of the bottom end of the collecting cylinder 9 is fixedly connected with threaded sleeve 25, the top of the movable disc 8 is provided with threaded grooves 26 located below the collecting cylinder 9, and the outer wall of the threaded sleeve 25 is provided on the inner wall of the threaded groove 26.

[0039] To further explain, the conical block 27 is threadedly connected to the threaded surface 32 of the inner wall of the collecting cylinder 9 via the threaded surface 21, achieving a detachable and sealed assembly. The bottom of the collecting cylinder 9 is fixed by the threaded sleeve 25 and the threaded groove 26 on the top of the movable disc 8. The separate threaded assembly structure is adopted, which is convenient for disassembly and assembly, and facilitates separate disassembly, maintenance and cleaning of residual materials in the later stage.

[0040] The reciprocating assembly includes a top rod 21 that is slidably connected to the inner wall of the right side of the bottom end of the cleaning cylinder 2. The top end of the top rod 21 is fixedly connected to the right side of the bottom end of the movable plate 8. An elliptical frame 20 is fixedly connected to the bottom end of the top rod 21. A traction block 19 is provided on the inner wall of the elliptical frame 20. A transfer plate 18 is fixedly connected to the right end of the traction block 19.

[0041] To further explain, when the adapter plate 18 rotates, it can drive the traction block 19 to make a circular motion. The outer wall of the traction block 19 is in the shape of a round rod, which fits inside the elliptical frame 20 and makes adaptive sliding, converting the rotational motion into the vertical reciprocating linear motion of the elliptical frame 20. Then, the power is transmitted synchronously through the top rod 21, which drives the movable plate 8 to slide smoothly up and down along the inner wall of the cleaning cylinder 2, providing reciprocating lifting power for the unblocking component.

[0042] A second motor 17 is fixedly connected to the right end of the power box 3 on one side of the adapter plate 18. The driving end of the second motor 17 passes through the inner wall of the power box 3 and is fixedly connected to the middle of the right end of the adapter plate 18.

[0043] To further explain, motor 2 17 is fixedly installed on the outside of power box 3 as the power source of reciprocating component. Its drive end directly drives the adapter plate 18 to rotate at a constant speed, providing stable rotational power for subsequent transmission, reciprocating lifting of movable plate 8 and unblocking operation of needle 30.

[0044] The scraping component includes a scraping strip 10 fixedly connected to the top of the extension rod 15, and collection grooves 38 are provided on both the left and right sides of the outer wall of the scraping strip 10.

[0045] To further explain, the scraper bar 10 is positioned between multiple needles 30, without obstructing the unblocking operation of the needles 30. When the extension rod 15 rotates, the scraper bar 10 can rotate synchronously, and its top surface is attached to the lower surface of the spinneret 6. It can rotate and scrape off the residual melt and shallow solidified material overflowing from the nozzle 11 port. The scraped melt flows naturally along the arc of the scraper bar 10 surface and is collected in the collection tanks 38 on both sides for centralized storage.

[0046] The constant temperature assembly includes a constant temperature flow channel 7 fixedly connected to the inner wall of the cleaning cylinder 2 below the threaded sleeve 5. The constant temperature flow channel 7 is sleeved on the outer wall of the spinneret 6. An isolation plate 12 is fixedly connected to the middle of the left side of the inner wall of the constant temperature flow channel 7. Liquid flow pipes 13 are fixedly connected to both the front and rear parts of the isolation plate 12 on the left side of the outer wall of the constant temperature flow channel 7. The left end of the liquid flow pipes 13 penetrates the outer side of the cleaning cylinder 2.

[0047] To further explain, the constant temperature flow channel 7 is made of stainless steel and is annularly fitted on the outside of the spinneret 6. The isolation plate 12 divides the inside of the constant temperature flow channel 7 into a unidirectional surrounding flow channel. The two liquid pipes 13 are respectively connected to the inlet and outlet pipes of the external hot oil equipment, so that the heat transfer oil forms a closed loop circulation in the constant temperature flow channel 7. The spinneret 6 is continuously heated at a constant temperature by metal heat conduction, maintaining the melt in the nozzle 11 in a molten state and preventing the spinning equipment from cooling down and crystallizing after shutdown.

[0048] A secondary bevel gear 24 is fixedly connected to the lower part of the outer wall of the extension rod 15. A motor 16 is fixedly connected to the left end of the power box 3 above the secondary bevel gear 24. The drive end of the motor 16 passes through the inner wall of the power box 3 and is fixedly connected to the crossbar 22.

[0049] To further explain, motor 16 is fixed to the left end of power box 3 and can drive crossbar 22 to rotate horizontally. The secondary bevel gear 24 is fixed to the lower part of extension rod 15 and can realize power reversal transmission through gear meshing, providing power input for the rotation operation of extension rod 15 and top scraper 10.

[0050] A main bevel gear 23 is fixedly connected to the right end of the crossbar 22, and the bottom end of the outer diameter of the main bevel gear 23 is meshed with the left end of the outer diameter of the auxiliary bevel gear 24.

[0051] To further explain, the main bevel gear 23 rotates horizontally synchronously with the crossbar 22 and forms a vertical meshing transmission structure with the secondary bevel gear 24, converting the horizontal rotational power output by the motor 16 into the vertical axial rotation of the extension rod 15, thereby driving the scraper strip 10 to rotate circumferentially around the bottom surface of the spinneret 6, completing the overall scraping operation of overflow material.

[0052] Working Principle: This device cleans and operates the spinning nozzles before the spinning equipment is shut down for maintenance, avoiding the problem of melt crystallization clogging the holes after shutdown. During operation, the cleaning cylinder 2 needs to be threaded onto the outer wall of the threaded sleeve 5 of the conveying pipe 1 through the threaded face 14 to complete the overall assembly of the cleaning structure. The liquid flow pipes 13 on both sides of the constant temperature flow channel 7 are connected to the inlet and outlet ports of the external hot oil equipment through metal hoses. The high-temperature heat transfer oil enters the interior of the constant temperature flow channel 7 through one side liquid flow pipe 13, flows around the flow channel, and then flows back from the other side liquid flow pipe 13, forming a closed-loop constant temperature circulation. The heat of the hot oil is transferred to the... The heat is evenly transferred to the spinneret 6 via metal conduction, ensuring that the spinneret 6 and the inside of the nozzles 11 remain at a constant molten temperature. This prevents residual melt from cooling, crystallizing, and solidifying at the source. Then, motor 17 is activated, driving the adapter plate 18 to rotate. The traction block 19 revolves with the adapter plate 18 and slides adaptively inside the elliptical frame 20, causing the elliptical frame 20 to perform vertical reciprocating motion. This causes the top rod 21 to slide up and down along the inner wall of the cleaning cylinder 2, pushing the movable disc 8 to reciprocate up and down inside the cleaning cylinder 2. During the movement of the movable disc 8, the top array arrangement... The synchronous displacement of the collecting cylinder 9 causes the needle 30 to repeatedly penetrate into the nozzle 11. The reciprocating disturbance of the needle 30 breaks the static state of the melt and improves the fluidity of the residual melt. The residual melt in the hole flows along the outer wall of the needle 30, the surface of the conical block 27, through the cavity 28, and finally flows into the collecting cylinder 9 and is received and stored by the push plate 33. This completes the unblocking operation of the nozzle 11. After the unblocking operation is completed, the second motor 17 is turned off and the first motor 16 is started. The first motor 16 drives the crossbar 22 and the main bevel gear 23 to rotate, and through meshing transmission, drives the secondary bevel gear 24 and the extension The rod 15 rotates synchronously, causing the scraper strip 10 at the top of the extension rod 15 to rotate circumferentially against the bottom surface of the spinneret 6, thoroughly scraping away the residual melt overflowing from the nozzle 11. The scraped melt converges along the arc of the scraper strip 10 into the collection tank 38. After all cleaning operations are completed, the cleaning cylinder 2 is disassembled and removed. The collection cylinder 9 and the movable disc 8, and the conical block 27 and the collection cylinder 9 are separated in sequence by screwing them on. The rod-shaped tool is used to press the push block 36 to drive the push rod 35 and the push plate 33 to slide, pushing out the collected residual melt completely. The scraper tool is used to clean the accumulated material in the collection tank 38.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning high-temperature melt spinning nozzle device for preventing crystallization, comprising a conveying pipe (1) and a cleaning cylinder (2), characterized in that: A threaded sleeve (5) is fixedly connected to the lower side of the outer wall of the conveying pipe (1), and a spinneret (6) is fixedly connected to the bottom end of the conveying pipe (1). Several spray holes (11) are opened on the outer side of the inner wall of the spinneret (6). The cleaning cylinder (2) has a threaded surface (14) on the upper side of its inner wall. The cleaning cylinder (2) is installed on the outer wall of the threaded sleeve (5) through the threaded surface (14). A constant temperature component is provided on the inner wall of the cleaning cylinder (2) below the threaded sleeve (5). An extension rod (15) is rotatably connected to the inner wall of the bottom middle of the cleaning cylinder (2). The upper and lower ends of the extension rod (15) pass through the inner and outer sides of the cleaning cylinder (2) respectively. A scraper is provided at the top of the extension rod (15). A movable disc (8) is sleeved on the upper side of the outer wall of the extension rod (15). The outer wall of the movable disc (8) is slidably connected to the lower side of the inner wall of the cleaning cylinder (2). A dredging component is provided on the outer side of the top of the movable disc (8). A power box (3) is fixedly connected to the outer side of the bottom of the cleaning cylinder (2). The power box (3) is connected to the movable disc (8) through a reciprocating component. The bottom end of the extension rod (15) is rotatably connected to the bottom end of the inner wall of the power box (3). A battery pack (4) is provided at the bottom end of the power box (3).

2. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 1, characterized in that: The unblocking assembly includes a collection cylinder (9) with the top of the movable disc (8) and the nozzle (11) corresponding one-to-one. The upper side of the inner wall of the collection cylinder (9) is provided with a conical block (27). The top of the conical block (27) is fixedly connected with a needle (30). The inner wall of the conical block (27) is provided with a number of perforated cavities (28). The outer wall of the conical block (27) is fixedly connected with a limit ring (29) at the top of the collection cylinder (9). The inner wall of the collection cylinder (9) is provided with an elastic component.

3. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 2, characterized in that: The elastic component includes a retaining plate (34) fixedly connected to the lower side of the inner wall of the collecting cylinder (9). A push rod (35) is slidably connected to the middle of the inner wall of the retaining plate (34). A push block (36) is fixedly connected to the bottom end of the push rod (35). The outer wall of the push block (36) is set on the inner wall of the middle part of the bottom end of the collecting cylinder (9). A spring (37) is fixedly connected to the bottom end of the retaining plate (34) outside the push rod (35). The other end of the spring (37) is fixedly connected to the top end of the push block (36). A push plate (33) is fixedly connected to the top end of the push rod (35). The outer wall of the push plate (33) is slidably connected to the inner wall of the collecting cylinder (9).

4. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 2, characterized in that: The upper side of the inner wall of the collecting cylinder (9) is provided with threaded surface three (32), the outer wall of the conical block (27) is provided with threaded surface two (31) located below the limiting ring (29), the outer side of the bottom end of the collecting cylinder (9) is fixedly connected with threaded sleeve two (25), the top of the movable disc (8) is provided with threaded grooves (26) in sequence located below the collecting cylinder (9), and the outer wall of the threaded sleeve two (25) is provided on the inner wall of the threaded groove (26).

5. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 1, characterized in that: The reciprocating assembly includes a top rod (21) that is slidably connected to the inner wall of the bottom right side of the cleaning cylinder (2). The top of the top rod (21) is fixedly connected to the bottom right side of the movable disc (8). An elliptical frame (20) is fixedly connected to the bottom of the top rod (21). A traction block (19) is provided on the inner wall of the elliptical frame (20). A transfer plate (18) is fixedly connected to the right end of the traction block (19).

6. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 5, characterized in that: The right end of the power box (3) is fixedly connected to a motor (17) on one side of the adapter plate (18). The driving end of the motor (17) passes through the inner wall of the power box (3) and is fixedly connected to the middle of the right end of the adapter plate (18).

7. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 1, characterized in that: The scraper includes a scraper strip (10) fixedly connected to the top of the extension rod (15), and collection grooves (38) are provided on both the left and right sides of the outer wall of the scraper strip (10).

8. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 1, characterized in that: The constant temperature assembly includes a constant temperature flow channel (7) fixedly connected to the inner wall of the cleaning cylinder (2) below the threaded sleeve (5). The constant temperature flow channel (7) is sleeved on the outer wall of the spinneret (6). An isolation plate (12) is fixedly connected to the middle of the left side of the inner wall of the constant temperature flow channel (7). Liquid flow pipes (13) are fixedly connected to both the front and rear parts of the left side of the outer wall of the constant temperature flow channel (7) in front of and behind the isolation plate (12). The left end of each liquid flow pipe (13) penetrates the outer side of the cleaning cylinder (2).

9. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 1, characterized in that: The lower part of the outer wall of the extension rod (15) is fixedly connected to a secondary bevel gear (24), and the left end of the power box (3) is fixedly connected to a motor (16) above the secondary bevel gear (24). The driving end of the motor (16) passes through the inner wall of the power box (3) and is fixedly connected to a crossbar (22).

10. The anti-crystallization self-cleaning high-temperature melt spinning nozzle device according to claim 9, characterized in that: The right end of the crossbar (22) is fixedly connected to the main bevel gear (23), and the bottom end of the outer diameter of the main bevel gear (23) is meshed with the left end of the outer diameter of the secondary bevel gear (24).

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