Screw extruder for chemical fiber production

Abstract

The application relates to the technical field of chemical fiber production, in particular to a screw extruder for chemical fiber production, which comprises a bottom plate, an extruder body is arranged on the top of the bottom plate, and a mixing box is arranged on the top of the extruder body. The screw extruder for chemical fiber production is provided with a conveyor, a first belt pulley and a spiral feeding shaft. Raw materials are put into a mixing cavity, then the output end of a first servo motor drives a rotating rod to rotate, the rotating rod drives a stirring rod to rotate, the stirring rod mixes the raw materials in the mixing cavity, meanwhile, the rotating rod drives a first clutch sleeve and the spiral feeding shaft to rotate through a second belt pulley, the raw materials in the mixing cavity enter the conveyor through a feeding valve, then enter the mixing cavity through a discharging valve, the raw materials in the mixing cavity are uniformly mixed, the raw materials are uniformly mixed, and the quality of the chemical fiber is good.

Description

Technical Field

[0001] This invention relates to the field of chemical fiber production technology, and in particular to a screw extruder for chemical fiber production. Background Technology

[0002] Chemical fibers are fibers with textile properties produced from natural or synthetic polymers through processes such as preparing spinning solutions, spinning, and post-treatment. The length, thickness, whiteness, and luster of these fibers can be adjusted during production, resulting in fibers with advantages such as light resistance, abrasion resistance, easy washing and drying, resistance to mildew and insects. They are widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, fire hoses, ropes, fishing nets, electrical insulation wires, medical sutures, tire cord fabrics, and parachutes. The most commonly used extruder for producing chemical fibers is the screw extruder.

[0003] According to Chinese Invention Patent No. 201920131766.1, a screw extruder for uniformly mixing chemical fibers features an electrically operated telescopic rod with a barrel and an adjusting plate welded to both ends. This allows for effective adjustment of the space above the barrel, preventing blockages inside. However, in operation, the extruder relies solely on the integrated mixing shaft and blades for uniform mixing of the added materials. This results in poor mixing between the raw materials above and below the feed hopper, negatively impacting the quality of chemical fiber production. Summary of the Invention

[0004] To address the shortcomings of the aforementioned technologies, this invention provides a screw extruder for chemical fiber production, which can improve the uniformity of material mixing and thus enhance the quality of chemical fiber production.

[0005] This invention discloses a screw extruder for chemical fiber production, comprising an extruder body, a mixing chamber mounted on the top of the extruder body, the bottom of the mixing chamber being connected to the feed inlet of the extruder body, a mixing cavity being formed inside the mixing chamber, a stirring rod being rotatably connected inside the mixing cavity, a conveyor mounted on one side of the mixing chamber, a screw conveyor shaft being rotatably connected inside the conveyor, a feed valve being provided at the top of the conveyor, and a discharge valve being provided at the bottom of the conveyor, with one end of both the feed valve and the discharge valve extending into the mixing chamber. One end of the shaft extends to the outside of the conveyor and is fitted with a first clutch sleeve. A second pulley is fitted on the outside of the first clutch sleeve. A fixed plate is provided on one side of the extruder body. A vertical plate is installed on the top of the fixed plate. A connecting plate is installed on one side of the vertical plate. A first servo motor is provided on one side of the vertical plate. The output end of the first servo motor extends to the other side of the vertical plate and is provided with a rotating rod. One end of the rotating rod is fixedly connected to one end of the stirring rod. A first pulley is fitted on the rotating rod. The first pulley is connected to the second pulley via a belt.

[0006] A base plate can be installed at the bottom of the extruder body, meaning the extruder body is mounted on the base plate.

[0007] Optionally, the bottom of the mixing box is provided with a pipe for connecting the mixing box and the extruder body. A switch valve is provided at the bottom of the mixing box within the range of the pipe. A moving groove is provided at the bottom of the mixing box on both sides of the switch valve. A connecting spring is provided on one side of the inner cavity of the moving groove. A moving block is provided at one end of the connecting spring. The bottom of the moving block is connected to the top of the pipe.

[0008] Optionally, a connecting frame is installed on the top of the fixing plate, and a rotating column is rotatably connected to the connecting frame near the pipe. Several cams are sleeved on the rotating column. A connecting rod is rotatably connected to one side of the connecting frame. A second clutch sleeve is sleeved on the outside of the connecting rod. A third pulley is provided on the outside of the second clutch sleeve. A drive rod is rotatably connected to one side of the connecting frame. One end of the connecting rod is connected to one end of the drive rod. Meshing bevel gears are sleeved on the outside of both the drive rod and the rotating column. A fourth pulley is sleeved on the outside of the rotating rod. The fourth pulley is connected to the third pulley via belt drive.

[0009] Optionally, the feed inlet of the extruder body is provided with a connecting valve, which is located within the pipe section.

[0010] Optionally, the top of the fixed plate is provided with two limiting blocks, and a threaded rod is rotatably connected between the two limiting blocks. A push plate is threaded onto the upper part of the threaded rod, and the bottom end of the push plate extends to the bottom of the fixed plate. Connecting columns are provided on one side of the push plate, both above and below it. A baffle is installed at one end of each of the two connecting columns. One side of the baffle is located inside the extruder body and rotatably connected to the screw body. A second servo motor is provided on the baffle, and the output end of the second servo motor is connected to one end of the screw body. A third servo motor is provided on one side of one of the limiting blocks, and the output end of the third servo motor is connected to one end of the threaded rod.

[0011] Optionally, a collection box is provided on one side of the extruder body, and a collection drawer is placed inside the collection box. The connection between the baffle and the extruder body is located directly above the collection box.

[0012] Optionally, a guide rail is provided on one side of the extruder body, and the guide rail and the threaded rod are respectively located on both sides of the extruder body. A threaded shaft is rotatably connected inside the guide rail. A fourth servo motor is provided on one side of the guide rail. The output end of the fourth servo motor is connected to one end of the threaded shaft. A push rod is threadedly connected to the outside of the threaded shaft. One end of the push rod extends into the interior of the extruder body and is provided with a scraper ring. The scraper ring fits against the inner wall of the extruder body.

[0013] Optionally, a plurality of connecting grooves are provided on the same circumferential sidewall of the spiral conveying shaft, and a slider is slidably connected inside each connecting groove. A clutch post is provided on one side of each slider. A plurality of clutch grooves are provided inside the first clutch sleeve. One end of each clutch post extends into the clutch groove. An electromagnet is provided on one side of the inner cavity of the connecting groove and on one side of the slider. A support spring is slidably connected inside the connecting groove and on the outside of the clutch post.

[0014] Optionally, a plurality of connecting grooves are formed on the same circumferential sidewall of the connecting rod, and a slider is slidably connected inside each connecting groove. A clutch post is provided on one side of each slider. A plurality of clutch grooves are formed inside the second clutch sleeve, and one end of each clutch post extends into the clutch groove. An electromagnet is provided on one side of the inner cavity of the connecting groove and on one side of the slider. A support spring is slidably connected inside the connecting groove and on the outside of the clutch post.

[0015] The screw extruder for chemical fiber production obtained by this invention has the following beneficial effects:

[0016] 1. This screw extruder for chemical fiber production is equipped with a conveyor, a first pulley, and a screw conveyor shaft. Raw materials are placed inside the mixing chamber, and then the output of the first servo motor drives the rotating rod to rotate, which in turn drives the stirring rod to rotate. This causes the stirring rod to mix the raw materials inside the mixing chamber. At the same time, the rotating rod drives the first clutch sleeve and the screw conveyor shaft to rotate via the second pulley, so that the raw materials inside the mixing chamber enter the conveyor through the feed valve and then enter the mixing chamber through the discharge valve. This ensures that the raw materials inside the mixing chamber are mixed evenly, resulting in better quality chemical fibers.

[0017] 2. This screw extruder for chemical fiber production is equipped with a rotating column, a cam, and a feed pipe. When feeding material into the extruder body, the output of the first servo motor drives the rotating rod to rotate. This rotating rod, through the fourth pulley, drives the third pulley to rotate, which in turn drives the second clutch sleeve to rotate the connecting rod. The connecting rod then drives the drive rod to rotate, which in turn drives the rotating column to rotate through a bevel gear. This causes the convex end of the cam to rotate towards the feed pipe, causing the feed pipe to slide along the moving block inside the moving groove. When the round end of the cam rotates towards the feed pipe, the connecting spring pushes the moving block to reset the feed pipe. This allows the raw material in the mixing chamber to enter the extruder body through the open switch valve and connecting valve, preventing the raw material from clogging inside the feed pipe and facilitating feeding into the extruder body. The mixing in the mixing chamber and the feeding into the extruder body are not synchronized. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the conveyor structure on the mixing box of the present invention;

[0020] Figure 3 This is a side view of the structure of the mixing box of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection structure between the connecting rod and the second clutch sleeve of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection structure between the first clutch sleeve and the spiral conveyor shaft of the present invention;

[0023] Figure 6 for Figure 1 Enlarged view of point A;

[0024] Figure 7 for Figure 1 Enlarged view of point B;

[0025] Figure 8 for Figure 1 Enlarged view of point C;

[0026] Figure 9 for Figure 1 Enlarged view of point D.

[0027] In the diagram: 1. Base plate; 2. Extruder body; 3. Mixing box; 4. Mixing chamber; 5. Stirring rod; 6. Connecting plate; 7. Rotating rod; 8. Conveyor; 9. Screw conveyor shaft; 10. Feed valve; 11. Discharge valve; 12. First pulley; 13. First clutch sleeve; 14. Second pulley; 15. Fixed plate; 16. Vertical plate; 17. Connecting frame; 18. Rotating column; 19. Cam; 20. Drive rod; 21. Bevel gear; 22. Connecting rod; 23. Second clutch sleeve; 24. Third pulley; 25. Fourth pulley; 26. First servo motor; 27. Switch valve; 28. Connecting valve; 29. ​​Moving groove; 30. Connecting spring; 31. Moving block; 32. Pipeline; 33. Limiting block; 34. Threaded rod; 35. Push plate; 36. Connecting column; 37. Second servo motor; 38. Baffle; 39. Screw body; 40. Third servo motor; 41. Collection box; 42. Collection drawer; 43. Guide rail; 44. Threaded shaft; 45. Fourth servo motor; 46. Push rod; 47. Scraper ring; 48. Connecting groove; 49. Slider; 50. Clutch column; 51. Clutch groove; 52. Support spring; 53. Electromagnet. Detailed Implementation

[0028] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0029] Example 1:

[0030] like Figures 1-7As shown, this invention discloses a screw extruder for chemical fiber production, including a base plate 1, an extruder body 2 mounted on the top of the base plate 1, a mixing chamber 3 mounted on the top of the extruder body 2, a mixing cavity 4 opened inside the mixing chamber 3, a stirring rod 5 rotatably connected inside the mixing cavity 4, a conveyor 8 mounted on one side of the mixing chamber 3, a screw conveying shaft 9 rotatably connected inside the conveyor 8, a feed valve 10 provided at the top of the conveyor 8, and a discharge valve 11 provided at the bottom of the conveyor 8. One end of both the feed valve 10 and the discharge valve 11 extends into the mixing chamber 3. One end of the screw conveying shaft 9 extends to the outside of the conveyor 8 and is fitted with a first clutch sleeve 13. A second pulley 14 is fitted on the outside of the first clutch sleeve 13. One side of the extruder body 2 is located on the fixed plate 15. A vertical plate 16 is installed on the top of the fixed plate 15. A connecting plate 6 is installed on one side of the vertical plate 16. A first servo motor 26 is provided on one side of the vertical plate 16. The output end of the first servo motor 26 extends to the other side of the vertical plate 16 and is provided with a rotating rod 7. One end of the rotating rod 7 is fixedly connected to one end of the stirring rod 5. A first pulley 12 is sleeved on the outside of the rotating rod 7 and is connected to the second pulley 14 by a belt. When the raw materials are mixed, the feed valve 10 and the discharge valve 11 are both open. After mixing for a certain period of time, the feed valve 10 is closed, and the raw materials inside the conveyor 8 are discharged into the mixing chamber 4. The discharge valve 11 and the feed valve 10 are electrically opened.

[0031] The mixing chamber 3 is equipped with a switch valve 27 at its bottom and a drain pipe 32 at its bottom. The bottom of the mixing chamber 3 and both sides of the switch valve 27 are provided with moving grooves 29. A connecting spring 30 is provided on one side of the inner cavity of the moving groove 29. A moving block 31 is provided at one end of the connecting spring 30. The bottom of the moving block 31 is connected to the top of the drain pipe 32. By opening the connecting valve 28, the raw materials inside the mixing chamber 4 can fall into the drain pipe 32 through the switch valve 27.

[0032] The top of the fixed plate 15 is equipped with a connecting frame 17, and a rotating column 18 is rotatably connected to the connecting frame 17. Several cams 19 are sleeved on the outer side of the rotating column 18. A connecting rod 22 is rotatably connected to one side of the connecting frame 17. A second clutch sleeve 23 is sleeved on the outer side of the connecting rod 22. A third pulley 24 is provided on the outer side of the second clutch sleeve 23. One end of the connecting rod 22 is connected to one end of the drive rod 20. A drive rod 20 is rotatably connected to one side of the connecting frame 17. Both the drive rod 20 and the outer side of the rotating column 18 are sleeved with meshing bevel gears 21, which causes the connecting rod 22 to rotate. Through the drive rod 20 and the bevel gears 21, the rotating column 18 can be driven to rotate.

[0033] The rotating rod 7 is fitted with a fourth pulley 25 on its outer side. The fourth pulley 25 is connected to the third pulley 24 by belt drive. The top of the extruder body 2 is equipped with a connecting valve 28. When the rotating rod 7 rotates, it can drive the connecting rod 22 to rotate.

[0034] Example 2:

[0035] like Figures 1-9 As shown, this invention discloses a screw extruder for chemical fiber production. The difference between this extruder and Embodiment 1 is that: two limiting blocks 33 are provided on the top of the fixed plate 15, and a threaded rod 34 is rotatably connected between the two limiting blocks 33. A push plate 35 is threadedly connected to the outer side of the threaded rod 34. The bottom end of the push plate 35 extends below the fixed plate 15. An elongated hole is provided on the fixed plate 15 for the push plate 35 to pass through. Connecting posts 36 are provided on one side of the push plate 35, both above and below it. A baffle 38 is installed at one end of each of the two connecting posts 36. One side of the baffle 38 is located inside the extruder body 2 and rotatably connected to the screw body 39. A second servo motor 37 is provided on the baffle 38. The output end of the second servo motor 37 is connected to one end of the screw body 39, enabling the output end of the second servo motor 37 to drive the screw body 39 to rotate, thereby extruding the raw material.

[0036] One of the limiting blocks 33 is equipped with a third servo motor 40. The output end of the third servo motor 40 is connected to one end of the threaded rod 34, so that the output end of the third servo motor 40 can drive the threaded rod 34 to rotate, thereby moving the screw body 39. A collection box 41 is installed on the top of the base plate 1 and on one side of the extruder body 2. A collection drawer 42 is placed inside the collection box 41.

[0037] The extruder body 2 has a guide rail 43 on one side, and a threaded shaft 44 is rotatably connected inside the guide rail 43. A fourth servo motor 45 is provided on one side of the guide rail 43. The output end of the fourth servo motor 45 is connected to one end of the threaded shaft 44. A push rod 46 is threadedly connected to the outside of the threaded shaft 44. One end of the push rod 46 extends into the extruder body 2 and is provided with a scraper ring 47, so that the output end of the fourth servo motor 45 can drive the threaded shaft 44 to rotate, thereby driving the scraper ring 47 to move.

[0038] The connecting rod 22 and the first clutch sleeve 13 are each provided with several connecting grooves 48. A slider 49 is slidably connected inside each connecting groove 48. A clutch post 50 is provided on one side of each slider 49. The spiral conveying shaft 9 and the second clutch sleeve 23 are each provided with several clutch grooves 51. One end of each clutch post 50 extends into the clutch groove 51. An electromagnet 53 is provided on one side of the inner cavity of the connecting groove 48 and on one side of the slider 49. A support spring 52 is slidably connected inside the connecting groove 48 and outside the clutch post 50, which facilitates the control of the connection between the second clutch sleeve 23 and the connecting rod 22, as well as the connection between the spiral conveying shaft 9 and the first clutch sleeve 13.

[0039] In summary, when using this screw extruder for chemical fiber production, the operator puts raw materials into the mixing chamber 4. Then, the output end of the first servo motor 26 drives the rotating rod 7 to rotate, which in turn drives the stirring rod 5 to rotate, thus mixing the raw materials inside the mixing chamber 4. At the same time, the rotating rod 7 drives the first clutch sleeve 13 and the screw conveyor shaft 9 to rotate through the second pulley 14, so that the raw materials inside the mixing chamber 4 enter the conveyor 8 through the feed valve 10, and then enter the mixing chamber 4 through the discharge valve 11, so that the raw materials inside the mixing chamber 4 are mixed evenly. Meanwhile, the rotation of the rotating rod 7 drives the third pulley 24 to rotate through the fourth pulley 25, so that the third pulley 24 cannot drive the connecting rod 22 to rotate through the second clutch sleeve 23.

[0040] When feeding material into the extruder body 2, the electromagnet 53 inside the first clutch sleeve 13 closes, eliminating the repulsive magnetic field between adjacent electromagnets 53. This causes the support spring 52 to push the slider 49 to move, causing the slider 49 to move one end of the clutch pin 50 out of the clutch groove 51. This disconnects the first clutch sleeve 13 from the screw conveyor shaft 9. Then, the electromagnet 53 inside the connecting rod 22 activates, generating a repulsive magnetic field between the two electromagnets 53. This causes the slider 49 to push one end of the clutch pin 50 into the clutch groove 51, connecting the connecting rod 22 to the second clutch sleeve 23. At this time, the output of the first servo motor 26 drives the rotating rod 7 to rotate, causing the rotating rod 7 to pass through the first The fourth pulley 25 drives the third pulley 24 to rotate, which causes the second clutch sleeve 23 to drive the connecting rod 22 to rotate, which in turn drives the drive rod 20 to rotate. The drive rod 20 then drives the rotating column 18 to rotate via the bevel gear 21, causing the convex end of the cam 19 to rotate toward the pipe 32. This causes the pipe 32 to drive the moving block 31 to slide along the inside of the moving groove 29. When the round end of the cam 19 rotates toward the pipe 32, the connecting spring 30 pushes the moving block 31 to move the pipe 32 back to its original position. This allows the raw material inside the mixing chamber 4 to enter the extruder body 2 through the open switch valve 27 and connecting valve 28. Then, the output end of the second servo motor 37 drives the screw body 39 to rotate, causing the raw material to be extruded.

[0041] When it is necessary to clean the inside of the extruder body 2, the output end of the third servo motor 40 drives the threaded rod 34 to rotate, so that the push plate 35 drives the screw body 39 to move out of the extruder body 2 through the connecting column 36. Then, the output end of the fourth servo motor 45 drives the threaded shaft 44 to rotate, so that the push rod 46 pushes the scraper ring 47 to scrape the raw material off the inner wall of the extruder body 2 and pushes it into the collection tray 42. By pulling out the collection tray 42, the waste inside the collection tray 42 can be cleaned. After cleaning, the collection tray 42 is put into the collection box 41.

[0042] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A screw extruder for chemical fiber production, comprising an extruder body (2), characterized in that: A mixing box (3) is installed on the top of the extruder body (2). The bottom of the mixing box (3) is connected to the feed port of the extruder body (2). A mixing chamber (4) is opened inside the mixing box (3). A stirring rod (5) is rotatably connected inside the mixing chamber (4). A conveyor (8) is installed on one side of the mixing box (3). A screw conveyor shaft (9) is rotatably connected inside the conveyor (8). A feed valve (10) is provided on the top of the conveyor (8). A discharge valve (11) is provided on the bottom of the conveyor (8). One end of the feed valve (10) and the discharge valve (11) both extend into the mixing box (3). One end of the screw conveyor shaft (9) extends to the outside of the conveyor (8) and is fitted with a... A first clutch sleeve (13) is provided with a second pulley (14) on its outer side. A fixed plate (15) is provided on one side of the extruder body (2). A vertical plate (16) is installed on the top of the fixed plate (15). A connecting plate (6) is installed on one side of the vertical plate (16). A first servo motor (26) is provided on one side of the vertical plate (16). The output end of the first servo motor (26) extends to the other side of the vertical plate (16) and is provided with a rotating rod (7). One end of the rotating rod (7) is fixedly connected to one end of the stirring rod (5). A first pulley (12) is provided on the rotating rod (7). The first pulley (12) is connected to the second pulley (14) by a belt. The bottom of the mixing box (3) is provided with a pipe (32), which is used to connect the mixing box (3) and the extruder body (2). A switch valve (27) is provided at the bottom of the mixing box (3) within the range of the pipe (32). A moving groove (29) is provided at the bottom of the mixing box (3) and on both sides of the switch valve (27). A connecting spring (30) is provided on one side of the inner cavity of the moving groove (29). A moving block (31) is provided at one end of the connecting spring (30). The bottom of the moving block (31) is connected to the top of the pipe (32). A connecting frame (17) is installed on the top of the fixing plate (15). A rotating column is rotatably connected to the connecting frame (17) near the pipe (32). (18) A plurality of cams (19) are fitted on the rotating column (18). A connecting rod (22) is rotatably connected to one side of the connecting frame (17). A second clutch sleeve (23) is fitted on the outside of the connecting rod (22). A third pulley (24) is provided on the outside of the second clutch sleeve (23). A driving rod (20) is rotatably connected to one side of the connecting frame (17). One end of the connecting rod (22) is connected to one end of the driving rod (20). Meshing bevel gears (21) are fitted on the outside of both the driving rod (20) and the rotating column (18). A fourth pulley (25) is fitted on the outside of the rotating rod (7). The fourth pulley (25) and the third pulley (24) are connected by belt drive.

2. The screw extruder for chemical fiber production according to claim 1, characterized in that: The feed inlet of the extruder body (2) is provided with a connecting valve (28), which is located within the range of the pipe (32).

3. A screw extruder for chemical fiber production according to claim 1 or 2, characterized in that: Two limiting blocks (33) are provided on the top of the fixed plate (15). A threaded rod (34) is rotatably connected between the two limiting blocks (33). A push plate (35) is threadedly connected to the upper thread of the threaded rod (34). The bottom end of the push plate (35) extends to the bottom of the fixed plate (15). A connecting column (36) is provided on one side of the push plate (35) and above and below the push plate (35). A baffle (38) is installed at one end of the two connecting columns (36). One side of the baffle (38) is located inside the extruder body (2) and is rotatably connected to the screw body (39). A second servo motor (37) is provided on the baffle (38). The output end of the second servo motor (37) is connected to one end of the screw body (39). A third servo motor (40) is provided on one side of one of the limiting blocks (33). The output end of the third servo motor (40) is connected to one end of the threaded rod (34).

4. The screw extruder for chemical fiber production according to claim 3, characterized in that: A collection box (41) is provided on one side of the extruder body (2), and a collection drawer (42) is placed inside the collection box (41). The connection between the baffle (38) and the extruder body (2) is located directly above the collection box (41).

5. A screw extruder for chemical fiber production according to claim 4, characterized in that: A guide rail (43) is provided on one side of the extruder body (2). The guide rail (43) and the threaded rod (34) are located on both sides of the extruder body (2). A threaded shaft (44) is rotatably connected inside the guide rail (43). A fourth servo motor (45) is provided on one side of the guide rail (43). The output end of the fourth servo motor (45) is connected to one end of the threaded shaft (44). A push rod (46) is threadedly connected to the outside of the threaded shaft (44). One end of the push rod (46) extends into the interior of the extruder body (2) and is provided with a scraper ring (47). The scraper ring (47) is in contact with the inner wall of the extruder body (2).

6. A screw extruder for chemical fiber production according to claim 1, characterized in that: Several connecting grooves (48) are provided on the same circumferential sidewall of the spiral conveying shaft (9). A slider (49) is slidably connected inside each connecting groove (48). A clutch post (50) is provided on one side of each slider (49). Several clutch grooves (51) are provided inside the first clutch sleeve (13). One end of each clutch post (50) extends into the clutch groove (51). An electromagnet (53) is provided on one side of the inner cavity of the connecting groove (48) and on one side of the slider (49). A support spring (52) is slidably connected inside the connecting groove (48) and outside the clutch post (50).

7. A screw extruder for chemical fiber production according to claim 3, characterized in that: Several connecting grooves (48) are provided on the same circumferential sidewall of the connecting rod (22). A slider (49) is slidably connected inside each connecting groove (48). A clutch post (50) is provided on one side of each slider (49). Several clutch grooves (51) are provided inside the second clutch sleeve (23). One end of each clutch post (50) extends into the clutch groove (51). An electromagnet (53) is provided on one side of the inner cavity of the connecting groove (48) and on one side of the slider (49). A support spring (52) is slidably connected inside the connecting groove (48) and outside the clutch post (50).

Images