A screw extruder for synthetic fiber production

By introducing an agitator shaft and an air pump to assist in conveying the screw extruder, the problem of material blockage was solved, the material discharge efficiency was improved, and the equipment maintenance process was simplified.

CN224334985UActive Publication Date: 2026-06-09XUCHANG CHUNHUA TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUCHANG CHUNHUA TECHNOLOGY CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing screw extruders are prone to clogging at the discharge end, and the baffles have poor agitation, resulting in material waste and low cleaning efficiency.

Method used

A screw extruder for synthetic fiber production was designed. It uses an agitator shaft and agitator blades to unclog the feed pipe and uses an air pump to draw in airflow to assist in material conveying. At the same time, the detachable machine body structure facilitates inspection and maintenance.

Benefits of technology

It effectively avoids material blockage, improves material discharge efficiency, and facilitates equipment maintenance and repair.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224334985U_ABST
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Abstract

This utility model discloses a screw extruder for synthetic fiber production, relating to the field of synthetic fiber production technology. It includes a base with a first convex groove and a second convex groove inside. A first convex slider and a second convex slider are slidably connected inside the first and second convex grooves, respectively. The beneficial effects of this utility model are as follows: This screw extruder for synthetic fiber production, through the rotation of the stirring shaft inside the feed pipe, facilitates the unblocking of the feed pipe and prevents material from clogging it. Simultaneously, an air pump draws air into the air duct, which is then guided into the forming trough through multiple ventilation holes, facilitating faster material delivery. Furthermore, under the action of the sliding slider connection between the bottom support of the extruder body and the base, and in conjunction with the deformation of the spring, the guide rod pulls the support and extruder body repeatedly with the rotation of the turntable, causing the feed pipe to sway left and right, thus improving the efficiency of material discharge.
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Description

Technical Field

[0001] This utility model relates to the field of synthetic fiber production technology, specifically to a screw extruder for synthetic fiber production. Background Technology

[0002] Synthetic fibers are widely used in the textile industry due to their excellent physical properties, such as high strength, wear resistance, and easy dyeing. Examples include polyester, nylon, spandex, acrylic, and polyester fiber. The production of synthetic fibers mainly involves the preparation of synthetic polymers, spinning, and post-processing.

[0003] Application No. 202420006533.X discloses a screw extruder for the production of synthetic fibers. By setting a discharge pipe at the discharge end of the screw extruder, the discharge pipe guides the material. When the material accumulates and blocks the flow, the drive motors on both sides rotate, causing the rotating plates on both sides to rotate in opposite directions. This causes the baffles on both sides to rotate in the opposite direction as well. The rotation of the baffles agitates the material inside the discharge pipe, thereby pushing the material out and preventing material accumulation and blockage. Moreover, the material is discharged by agitation of the rotating plates, eliminating the need for manual cleaning, thus saving manpower and resources and improving cleaning efficiency. The combination of the above structures solves the problem of easy material blockage at the discharge end of existing screw extruders.

[0004] The baffle in the above application rotates horizontally, which easily discharges material from the channel outward, causing waste. At the same time, the baffle has a poor agitation effect and is difficult to effectively clear the material. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a screw extruder for the production and preparation of synthetic fibers, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screw extruder for synthetic fiber production, comprising a base, wherein the base has a first convex groove and a second convex groove inside, and a first convex slider and a second convex slider are slidably connected inside the first convex groove and the second convex groove, respectively. A first bracket and a second bracket are respectively connected to the top of the first convex slider and the second convex slider. An extruder body is connected to the top of the first bracket and the second bracket. A forming groove is provided inside the extruder body, and two screw bodies are rotatably connected inside the forming groove via bearings. A feed pipe is connected to the bottom of the extruder body, and a stirring shaft is rotatably connected inside the feed pipe. Multiple stirring blades are connected to the outside of the stirring shaft, and a first screw is mounted on one side of the feed pipe. The three motors are connected together. The output end of the third motor is connected to the stirring shaft. A telescopic spring is installed inside the first convex groove. One end of the telescopic spring is connected to the first convex slider. A support frame is installed on the top of the base and on one side of the first bracket. A turntable is rotatably connected to one side of the support frame. A guide rod is rotatably connected to one side of the turntable. One end of the guide rod is rotatably connected to the first bracket. A second motor is fixedly installed on the side of the support frame away from the turntable. The output end of the second motor is connected to the turntable. An air duct is opened on the inner wall of the extruder body and at the top of the forming groove. Multiple ventilation holes are opened inside the extruder body and between the forming groove and the air duct. An air pump is installed on the top of the extruder body. The output end of the air pump is connected to an air guide pipe. One end of the air guide pipe is connected to the air duct.

[0007] Preferably, a feed hopper is connected to the top of the base and to the side of the air pump, and the feed hopper is connected to the forming groove.

[0008] Preferably, two gears are rotatably connected to one side of the extruder body, and the two gears are respectively connected to two screw bodies and mesh with each other. A first motor is fixedly installed on the side of the extruder body away from the gears, and the output end of the first motor is connected to one of the screw bodies.

[0009] Preferably, the extruder body includes a first body and a second body. A first mounting plate is installed on each of the corresponding sides of the first body, and a second mounting plate is installed on each of the corresponding sides of the second body. The first mounting plate and the second mounting plate are fixed together by screws.

[0010] Preferably, the height of the connection between the first body and the second body is higher than the bearing height of the two screw bodies.

[0011] Preferably, two mounting holes are provided on each of the corresponding sides of the first mounting plate and the second mounting plate.

[0012] This utility model provides a screw extruder for the production and preparation of synthetic fibers, which has the following beneficial effects:

[0013] 1. This screw extruder for synthetic fiber production utilizes the rotation of the stirring shaft inside the feed pipe to facilitate unblocking and prevent material from clogging the feed pipe. Simultaneously, an air pump draws air into the air duct, which is then guided into the forming trough through multiple ventilation holes, accelerating material transport. Furthermore, the sliding block connection between the bottom support of the extruder body and the base, combined with the deformation of the spring, causes the guide rod to repeatedly shift along with the rotation of the turntable, pulling the support and extruder body. This causes the feed pipe to sway left and right, improving material discharge efficiency.

[0014] 2. The screw extruder for synthetic fiber production and preparation has an extruder body composed of a first body and a second body, which allows the extruder body to be disassembled as a whole, facilitating the inspection and maintenance of its internal components. Furthermore, the height of the connection between the first body and the second body is higher than the bearing height of the screw, which helps to avoid hindering the normal operation of the screw. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front sectional view of the present invention;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is a top view of the present invention.

[0019] In the diagram: 1. Base; 2. First convex groove; 3. Second convex groove; 4. First convex slider; 5. Second convex slider; 6. First support; 7. Second support; 8. Extruder body; 81. First machine body; 82. Second machine body; 9. Forming groove; 10. Screw body; 11. Feed pipe; 12. Agitator shaft; 13. Agitator blade; 14. Third motor; 15. Telescopic spring; 16. Support frame; 17. Turntable; 18. Guide rod; 19. Second motor; 20. Air duct; 21. Ventilation hole; 22. Air pump; 23. Air guide pipe; 24. Feed hopper; 25. Gear; 26. First motor; 27. First mounting plate; 28. Second mounting plate; 29. ​​Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4This utility model provides a technical solution: a screw extruder for synthetic fiber production, comprising a base 1, with a first convex groove 2 and a second convex groove 3 inside the base 1. A first convex slider 4 and a second convex slider 5 are slidably connected inside the first convex groove 2 and the second convex groove 3, respectively. A first support 6 and a second support 7 are connected to the tops of the first convex slider 4 and the second convex slider 5, respectively. An extruder body 8 is connected to the tops of the first support 6 and the second support 7. A forming groove 9 is opened inside the extruder body 8, and two screw bodies 10 are rotatably connected inside the forming groove 9 via bearings. Two gears 25 are rotatably connected to one side of the extruder body 8, and the two gears 25 are respectively connected to the two screw bodies 10. The gears 25 mesh with each other, enabling the two screw bodies 10 to rotate simultaneously, facilitating the extrusion molding and conveying of materials. A first motor 26 is fixedly installed on the side of the extruder body 8 away from the gears 25. The output end of the first motor 26 is connected to one of the screw bodies 10, providing power for the rotation of the screw body 10. A feed pipe 11 is connected to the bottom of the extruder body 8. An agitator shaft 12 is rotatably connected inside the feed pipe 11. Multiple agitator blades 13 are connected to the outside of the agitator shaft 12. A third motor 14 is installed on one side of the feed pipe 11. The output end of the third motor 14 is connected to the agitator shaft 12, driving the agitator shaft 12 to rotate, causing the multiple agitator blades 13 to agitate the material, clearing the feed pipe 11 and helping to prevent the feed pipe 11 from becoming clogged. The first convex groove 2 is equipped with a telescopic spring 15. One end of the telescopic spring 15 is connected to the first convex slider 4, providing force for the reset of the first convex slider 4 and the first bracket 6. A support frame 16 is installed on the top of the base 1 and on one side of the first bracket 6. A turntable 17 is rotatably connected to one side of the support frame 16, and a guide rod 18 is rotatably connected to one side of the turntable 17. One end of the guide rod 18 is rotatably connected to the first bracket 6. A second motor 19 is fixedly installed on the side of the support frame 16 away from the turntable 17. The output end of the second motor 19 is connected to the turntable 17, driving the turntable 17 to rotate. Through the rotational connection of one end of the guide rod 18 to the first bracket 6 and the deformation of the telescopic spring 15, the guide rod 18 is pulled along with the rotation of the turntable 17. The displacement of the first support 6 causes the extruder body 8 and the feed pipe 11 to shake repeatedly, which helps improve the efficiency of material discharge. An air duct 20 is provided on the inner wall of the extruder body 8, located at the top of the forming trough 9. Multiple ventilation holes 21 are provided inside the extruder body 8, located between the forming trough 9 and the air duct 20. An air pump 22 is installed on the top of the extruder body 8, and its output end is connected to an air guide pipe 23. One end of the air guide pipe 23 is connected to the air duct 20. Under the action of the air pump 22, air is drawn into the air duct 20 and then guided into the forming trough 9 through the multiple ventilation holes 21, which helps to accelerate material conveying. A feed hopper 24 is connected to the top of the base 1, located on one side of the air pump 22. The feed hopper 24 is connected to the forming trough 9 for convenient material feeding.The extruder body 8 includes a first body 81 and a second body 82. First mounting plates 27 are installed on corresponding sides of the first body 81, forming a modular structure that allows the first body 81 and the second body 82 to be disassembled for easy inspection and maintenance of the extruder body 8. Second mounting plates 28 are installed on corresponding sides of the second body 82. The first mounting plates 27 and the second mounting plates 28 are fixed together with screws. Two mounting holes 29 are provided on corresponding sides of the first mounting plates 27 and the second mounting plates 28. The fixing and disassembly of the first mounting plates 27 and the second mounting plates 28 facilitates the installation and separation of the first body 81 and the second body 82. The connection point between the first body 81 and the second body 82 is higher than the bearing height of the two screw bodies 10, which helps to avoid obstructing the normal operation of the screw bodies 10.

[0022] In summary, in use, the screw extruder for synthetic fiber production involves feeding material into the forming groove 9 inside the extruder body 8 through the feed hopper 24. The first motor 26 drives the screw body 10 inside the forming groove 9 to rotate. Under the action of two meshing gears 25, which are respectively connected to the two screw bodies 10, the two screw bodies 10 extrude and transport the material. At the same time, the air pump 22 draws air into the air duct 20 inside the extruder body 8 through the air guide pipe 23, and then introduces it into the forming groove 9 through multiple ventilation holes 21 to assist in the material transport. The discharge pipe 11 discharges the material. The third motor 14 drives the stirring shaft 12 inside the discharge pipe 11 to rotate, causing multiple stirring blades 13 on the outside of the stirring shaft 12 to agitate the material. Due to the sliding of the first convex slider 4 and the second convex slider inside the base 1, the material is further agitated. The slider 5 is connected to the first bracket 6 and the second bracket 7 at the bottom of the extruder body 8. One end of the guide rod 18, which is rotatably connected to one side of the turntable 17, is rotatably connected to the first bracket 6. Therefore, the second motor 19 drives the turntable 17 to rotate, and one end of the guide rod 18 pulls the first bracket 6 to move. Under the action of the deformation of the telescopic spring 15 on one side of the first convex slider 4, the first convex slider 4 and the first bracket 6 are reset. The extruder body 8 and the feed tube 11 shake repeatedly. When it is necessary to inspect and repair the inside of the extruder body 8, the screws in the first mounting plate 27 and the second mounting plate 28 are removed, so that the first mounting plate 27 on both sides of the first body 81 is separated from the second mounting plate 28 on both sides of the second body 82. The first body 81 and the second body 82 are separated, and the extruder body 8 can be opened.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screw extruder for producing synthetic fibers, comprising a base (1), characterized in that: The base (1) has a first convex groove (2) and a second convex groove (3) inside. The first convex groove (2) and the second convex groove (3) are slidably connected to the interior of the first convex groove (2) and the second convex groove (3), respectively. The top of the first convex groove (4) and the second convex groove (5) are respectively connected to the top of the first convex groove (4) and the second convex groove (5). The top of the first support (6) and the second support (7) are connected to the top of the extruder body (8). The extruder body (8) has a forming groove (9) inside. The forming groove (9) is rotatably connected to two screw bodies (10) through bearings. The bottom of the extruder body (8) is connected to a feed pipe (11). The feed pipe (11) is rotatably connected to a stirring shaft (12). The outside of the stirring shaft (12) is connected to multiple stirring blades (13). A third motor (14) is installed on one side of the feed pipe (11). The output end of the third motor (14) is connected to the stirring shaft (12). The first convex groove (2) is slidably connected to the top of the first convex groove (2). A telescopic spring (15) is installed on the base (1), one end of which is connected to the first convex slider (4). A support frame (16) is installed on the top of the base (1) and on one side of the first bracket (6). A turntable (17) is rotatably connected to one side of the support frame (16). A guide rod (18) is rotatably connected to one side of the turntable (17). One end of the guide rod (18) is rotatably connected to the first bracket (6). A second motor is fixedly installed on the side of the support frame (16) away from the turntable (17). (19) The output end of the second motor (19) is connected to the turntable (17). An air trough (20) is provided on the inner wall of the extruder body (8) and at the top of the forming groove (9). Multiple ventilation holes (21) are provided inside the extruder body (8) and between the forming groove (9) and the air trough (20). An air pump (22) is installed on the top of the extruder body (8). An air guide pipe (23) is connected to the output end of the air pump (22). One end of the air guide pipe (23) is connected to the air trough (20).

2. The screw extruder for producing synthetic fibers according to claim 1, characterized in that: A feed hopper (24) is connected to the top of the base (1) and to one side of the air pump (22), and the feed hopper (24) is connected to the forming groove (9).

3. The screw extruder for producing synthetic fibers according to claim 1, characterized in that: Two gears (25) are rotatably connected to one side of the extruder body (8). The two gears (25) are respectively connected to two screw bodies (10) and mesh with each other. A first motor (26) is installed and fixed on the side of the extruder body (8) away from the gears (25). The output end of the first motor (26) is connected to one of the screw bodies (10).

4. The screw extruder for producing synthetic fibers according to claim 1, characterized in that: The extruder body (8) includes a first body (81) and a second body (82). A first mounting plate (27) is installed on each of the corresponding sides of the first body (81), and a second mounting plate (28) is installed on each of the corresponding sides of the second body (82). The first mounting plate (27) and the second mounting plate (28) are fixed together by screws.

5. The screw extruder for producing synthetic fibers according to claim 4, characterized in that: The height of the connection between the first body (81) and the second body (82) is higher than the bearing height of the two screw bodies (10).

6. The screw extruder for producing synthetic fibers according to claim 4, characterized in that: Two mounting holes (29) are provided on both sides of the first mounting plate (27) and the second mounting plate (28).