Screw extruder for nylon yarn production

By introducing a drive motor and a limiting ring into the screw extruder, the problem of uneven feeding in nylon filament production was solved, achieving uniform feeding of nylon chips and stability of the guide rollers, thus improving production efficiency and convenience.

CN224160748UActive Publication Date: 2026-04-24GUCHUANG (HUAIAN) NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUCHUANG (HUAIAN) NEW MATERIALS CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In the production of nylon filament using existing screw extruders, feeding too much nylon chips at a time slows down the feeding process and affects the extrusion process; feeding too little at a time increases labor consumption.

Method used

A structure including a drive motor, drive shaft, transmission gear, rotating ring, guide roller and storage tank is designed. The rotating ring drives the guide roller to rotate, so that the nylon chips fall evenly. The stability of the guide roller is enhanced by the combination of limiting ring and retaining ring.

Benefits of technology

This technology enables nylon chips to enter the screw extruder at a uniform speed, making operation convenient, reducing manpower consumption, and improving production efficiency.

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Abstract

The utility model discloses a screw extruder for polyamide yarn production, which comprises a support plate, the top of the support plate is fixedly connected with a screw extruder body, the top of the screw extruder body is fixedly connected with a feed hopper, one side of the feed hopper is rotatably connected with a rotating ring, and the inside of the rotating ring is in threaded connection with a guide roller. Material storage grooves are formed in the material guide roller at equal intervals. The utility model relates to the technical field of screw extruders, and the screw extruder for nylon yarn production is provided with a driving motor, a driving shaft, a transmission gear, an outer gear ring, a rotating ring, a material guide roller and a material storage tank, so that the function of uniformly blanking nylon slices is realized; chinlon chips in the feeding hopper can enter the screw extruder body at a constant speed, and operation is convenient and fast; and by arranging a connecting base, a reset spring, an adjusting block, a connecting rod and a baffle ring, the function of blocking the material guide roller after the material guide roller is installed is achieved, the stabilizing effect of the material guide roller after the material guide roller is installed is enhanced, and use is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of screw extrusion technology, specifically a screw extrusion machine for producing nylon yarn. Background Technology

[0002] Nylon filament is a textile fabric, also known as nylon yarn, which is a synthetic fiber made from polyamide raw materials through a spinning process. The production of nylon filament utilizes a screw extruder, a specialized piece of equipment for nylon fiber production. Nylon chips enter the sleeve through a feed hopper, and a drive motor rotates the gearbox and extrusion rod. The spiral blades push and extrude the nylon chips forward, and the extruded nylon fibers are discharged through a discharge pipe. It features good extrusion efficiency and low energy consumption, making it a key piece of equipment in the nylon fiber production process.

[0003] Existing screw extruders require nylon chips to be fed into the extruder from the feed hopper. However, if too many nylon chips are fed at once, it leads to slow feeding, affecting the extrusion process. Conversely, if too few chips are fed at once, although feeding is faster, the increased number of times the material is poured results in excessive labor consumption and is inconvenient to use. Therefore, we propose a screw extruder for nylon filament production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a screw extruder for nylon filament production. It solves the problem that when using a screw extruder, nylon chips need to be fed into the screw extruder from the feed hopper. However, if too many nylon chips are fed at once, it will lead to slow feeding, thus affecting the extrusion process. If too few chips are fed at once, although the feeding is fast, it will increase the number of times the raw materials are poured, which will cause excessive consumption of manpower.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A screw extruder for producing nylon filament includes a support plate, a screw extruder body fixedly connected to the top of the support plate, a feed hopper fixedly connected to the top of the screw extruder body, a rotating ring rotatably connected to one side of the feed hopper, a guide roller threadedly connected inside the rotating ring, storage troughs equally spaced inside the guide roller, a fixing block fixedly connected to the top of the screw extruder body, a drive shaft rotatably connected between the fixing block and the feed hopper, a transmission gear fixedly connected to the outer side of the drive shaft, and an external gear ring cooperating with the transmission gear fixedly connected to the outer side of the rotating ring. The rotating ring drives the guide roller to rotate, causing nylon chips inside the storage troughs to fall into the screw extruder body for processing.

[0007] Preferably, a drive motor is fixedly connected to the outer side of the fixed block, and the output end of the drive motor is fixedly connected to the drive shaft, so that the drive shaft can be rotated by the drive motor.

[0008] Preferably, a limiting ring is fixedly connected to one side of the rotating ring. The limiting ring is rotatably connected to the feed hopper. The rotation of the rotating ring can be limited by the limiting ring to prevent the rotating ring from deviating during rotation.

[0009] Preferably, one end of the guide roller is fixedly connected to a handle, which facilitates the assembly and disassembly of the guide roller.

[0010] Preferably, a connecting seat is fixedly connected to the outer side of the rotating ring, and an adjusting block is slidably connected inside the connecting seat. A connecting rod is fixedly connected at equal intervals to one side of the adjusting block, and a retaining ring is fixedly connected to the end of the connecting rod away from the adjusting block. The adjusting block drives the connecting rod to move, and the connecting rod drives the retaining ring to move, so that the retaining ring moves to one end of the guide roller, thereby blocking the position of the guide roller, preventing the guide roller from becoming loose, and enhancing the stability of the guide roller.

[0011] Preferably, a limiting rod is fixedly connected inside the connecting seat, the adjusting block is slidably connected to the limiting rod, and a return spring is sleeved on the outside of the limiting rod and on one side of the adjusting block. The setting of the return spring can drive the adjusting block to move and reset, and the setting of the limiting rod can limit the movement of the adjusting block.

[0012] This invention provides a screw extruder for producing nylon filament. Compared with the prior art, it has the following advantages:

[0013] 1. This screw extruder for nylon filament production achieves uniform feeding of nylon chips by setting up a drive motor, drive shaft, transmission gear, external gear ring, rotating ring, guide roller and storage tank, so that the nylon chips inside the feed hopper can enter the screw extruder body at a uniform speed, and the operation is convenient.

[0014] 2. This screw extruder for nylon filament production, by incorporating a connecting seat, a return spring, an adjusting block, a connecting rod, and a retaining ring, achieves the function of blocking the guide roller after installation, thereby enhancing the stability of the guide roller after installation and facilitating its use. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the feed hopper of this utility model;

[0017] Figure 3This is a schematic diagram of the rotating ring structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the guide roller of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the connector of this utility model.

[0020] In the diagram: 1. Support plate; 2. Fixing block; 3. Rotating ring; 4. Feed hopper; 5. Screw extruder body; 6. Guide roller; 7. Drive motor; 8. Connecting seat; 9. External gear ring; 10. Limiting ring; 11. Transmission gear; 12. Drive shaft; 13. Retaining ring; 14. Storage trough; 15. Handle; 16. Return spring; 17. Limiting rod; 18. Adjusting block; 19. Connecting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution:

[0023] A screw extruder for producing nylon filament includes a support plate 1, a screw extruder body 5 fixedly connected to the top of the support plate 1, a feed hopper 4 fixedly connected to the top of the screw extruder body 5, a rotating ring 3 rotatably connected to one side of the feed hopper 4, a guide roller 6 threadedly connected inside the rotating ring 3, and storage troughs 14 evenly spaced inside the guide roller 6. A fixing block 2 is fixedly connected to the top of the screw extruder body 5, a drive shaft 12 rotatably connected between the fixing block 2 and the feed hopper 4, and a transmission gear 11 fixedly connected to the outer side of the drive shaft 12. An external gear ring 9, which works with the transmission gear 11, is fixedly connected to the outer side of the rotating ring 3. First, nylon chips are added into the inside of the feed hopper 4. The drive shaft 12 drives the transmission gear 11 to rotate. The rotation of the transmission gear 11 drives the external gear ring 9 to rotate, which in turn drives the rotating ring 3 to rotate. The rotating ring 3 drives the guide roller 6 to rotate, so that the nylon chips inside the storage tank 14 fall into the screw extruder body 5, so that the nylon chips can enter the screw extruder body 5 evenly and facilitate their processing.

[0024] Furthermore, a drive motor 7 is fixedly connected to the outside of the fixed block 2. The output end of the drive motor 7 is fixedly connected to the drive shaft 12, and the drive motor 7 drives the drive shaft 12 to rotate.

[0025] Furthermore, a limiting ring 10 is fixedly connected to one side of the rotating ring 3. The limiting ring 10 is rotatably connected to the feed hopper 4. The rotation of the rotating ring 3 can be limited by the setting of the limiting ring 10 to prevent the rotating ring 3 from deviating during the rotation process.

[0026] Furthermore, a handle 15 is fixedly connected to one end of the guide roller 6, which facilitates the assembly and disassembly of the guide roller 6.

[0027] Furthermore, a connecting seat 8 is fixedly connected to the outer side of the rotating ring 3, and an adjusting block 18 is slidably connected inside the connecting seat 8. A connecting rod 19 is fixedly connected at equal intervals on one side of the adjusting block 18, and a retaining ring 13 is fixedly connected to the end of the connecting rod 19 away from the adjusting block 18. The connecting rod 19 is moved by the adjusting block 18, and the connecting rod 19 moves the retaining ring 13, so that the retaining ring 13 moves to one end of the guide roller 6, thereby blocking the position of the guide roller 6, preventing the guide roller 6 from becoming loose, and enhancing the stability of the guide roller 6.

[0028] Furthermore, a limiting rod 17 is fixedly connected inside the connecting seat 8, and the adjusting block 18 is slidably connected to the limiting rod 17. A reset spring 16 is sleeved on the outside of the limiting rod 17 and on one side of the adjusting block 18. The setting of the reset spring 16 can drive the adjusting block 18 to move and reset, and the setting of the limiting rod 17 can limit the movement of the adjusting block 18.

[0029] Working principle:

[0030] In use, nylon chips are added into the feed hopper 4, and the drive motor 7 is started. The drive motor 7 drives the transmission gear 11 to rotate via the drive shaft 12. The rotation of the transmission gear 11 drives the outer gear ring 9 to rotate, which in turn drives the rotating ring 3 to rotate. The rotating ring 3 drives the guide roller 6 to rotate, so that the nylon chips in the storage tank 14 fall into the screw extruder body 5, allowing the nylon chips to enter the screw extruder body 5 evenly for processing. When installing the guide roller 6, the adjusting block 18 is pushed to reset the spring. When spring 16 is compressed, adjusting block 18 moves retaining ring 13 via connecting rod 19, allowing guide roller 6 to be placed inside rotating ring 3 and connected via threads. After connection, adjusting block 18 is released, and return spring 16 moves adjusting block 18 to its original position due to its elasticity. Adjusting block 18 then moves retaining ring 13 via connecting rod 19, causing retaining ring 13 to move to one end of guide roller 6, thereby blocking the position of guide roller 6, preventing guide roller 6 from becoming loose, enhancing the stability of guide roller 6, and facilitating use.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw extruder for producing nylon filament, comprising a support plate (1), characterized in that: The top of the support plate (1) is fixedly connected to the screw extruder body (5), the top of the screw extruder body (5) is fixedly connected to the feed hopper (4), a rotating ring (3) is rotatably connected to one side of the feed hopper (4), a guide roller (6) is threadedly connected inside the rotating ring (3), and a storage trough (14) is equidistantly opened inside the guide roller (6). The top of the screw extruder body (5) is fixedly connected to the fixing block (2), a drive shaft (12) is rotatably connected between the fixing block (2) and the feed hopper (4), a transmission gear (11) is fixedly connected to the outside of the drive shaft (12), and an external gear ring (9) that cooperates with the transmission gear (11) is fixedly connected to the outside of the rotating ring (3).

2. The screw extruder for producing nylon filament according to claim 1, characterized in that: A drive motor (7) is fixedly connected to the outside of the fixed block (2), and the output end of the drive motor (7) is fixedly connected to the drive shaft (12).

3. The screw extruder for producing nylon filament according to claim 1, characterized in that: A limiting ring (10) is fixedly connected to one side of the rotating ring (3), and the limiting ring (10) is rotatably connected to the feed hopper (4).

4. The screw extruder for producing nylon filament according to claim 1, characterized in that: A handle (15) is fixedly connected to one end of the guide roller (6).

5. The screw extruder for producing nylon filament according to claim 1, characterized in that: A connecting seat (8) is fixedly connected to the outer side of the rotating ring (3), and an adjusting block (18) is slidably connected inside the connecting seat (8). A connecting rod (19) is fixedly connected at equal intervals on one side of the adjusting block (18), and a retaining ring (13) is fixedly connected to the end of the connecting rod (19) away from the adjusting block (18).

6. The screw extruder for producing nylon filament according to claim 5, characterized in that: The connecting seat (8) is fixedly connected to a limiting rod (17), the adjusting block (18) is slidably connected to the limiting rod (17), and a return spring (16) is sleeved on the outside of the limiting rod (17) and on one side of the adjusting block (18).