Filament stretching device for manufacturing synthetic fibers

By designing a filament stretching device that includes replacement and protective components, the fiber stretching quality problem caused by blockage of the dividing post was solved, enabling the replacement of the dividing post without stopping the machine, thus improving production continuity and safety.

CN224199570UActive Publication Date: 2026-05-05GUANGDONG XINHOU HIGH-TECH MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG XINHOU HIGH-TECH MATERIALS CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing synthetic fiber manufacturing filament stretching devices, the dividing column is prone to blockage due to high temperature, moisture or oil, which affects the fiber stretching quality, and stopping the machine to clean or replace the dividing column will affect the production schedule.

Method used

A wire stretching device including a replacement component and a protective component was designed. The replacement component allows for the replacement of the branch post without stopping the machine, and the protective component prevents the operator from coming into contact with high-temperature components.

Benefits of technology

This enables rapid replacement of the dividing column without affecting production, avoiding the decline in fiber stretching quality caused by blockage, and improving the continuity and safety of production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a filament stretching device for manufacturing synthetic fibers, which comprises a drawing machine, and the drawing machine comprises an equipment box, a drawing roller and a yarn separating column. The replacement assembly comprises a mounting plate, two U-shaped guide grooves, a supporting plate, a mounting hole, a threaded hole and a locking rod, the mounting plate is fixed to the upper end of the side edge of the equipment box, one side edge of the U-shaped guide grooves is fixed to one end of the mounting plate, the supporting plate is fixed between the two U-shaped guide grooves, the mounting hole is formed in the middle of the supporting plate, and the threaded hole is formed in the middle of the supporting plate. The threaded holes are formed in the two ends of the supporting plate and communicate with the mounting holes, and the locking rods are connected into the threaded holes in a threaded mode. The problems that due to the fact that the distance between the yarn separating columns is small, fibers are affected by high temperature, moisture or oil stains exist on the surfaces of the fibers, the middles of the yarn separating columns are blocked, then the fibers are adhered, the stretching quality of the fibers is affected, and the production schedule is affected when the yarn separating columns are cleaned or replaced after a machine is shut down are solved.
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Description

Technical Field

[0001] This utility model relates to the field of fiber stretching technology, specifically to a filament stretching device for synthetic fiber manufacturing. Background Technology

[0002] A filament drawing device for synthetic fiber manufacturing typically refers to equipment used for drawing synthetic fibers (such as polyester, polyamide, and polypropylene). A carbon fiber drawing machine is an essential piece of equipment throughout the entire carbon fiber spinning process. Its main function is to apply external force along the axial direction of the fiber bundle under certain conditions, thinning the individual fibers in the bundle, improving their orientation, and changing their state from a low-strength, high-elongation plastic state to a high-strength, low-elongation elastic state. The drawing machine is equipped with fiber separators at the fiber inlet or outlet. These separators separate multiple fibers, ensuring that each fiber is evenly stressed during the drawing process.

[0003] Due to the small spacing between the splitting columns, the high temperature affecting the fibers, and the presence of moisture or oil on the fiber surface, blockages can occur in the middle of the splitting columns, leading to fiber adhesion and affecting the fiber stretching quality. Stopping the machine to clean or replace the splitting columns, however, will disrupt production schedules. Therefore, there is a need for a synthetic fiber filament stretching device to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a filament stretching device for synthetic fiber manufacturing, thereby solving the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution:

[0005] This utility model relates to a filament stretching device for synthetic fiber manufacturing, comprising:

[0006] A drawing machine, comprising an equipment box, a drawing roller, and a dividing post, wherein the drawing roller is rotatably connected to the side of the equipment box, and the dividing post is fixed to one end of the equipment box;

[0007] The replacement component includes a mounting plate, a U-shaped guide groove, a support plate, mounting holes, threaded holes, and a locking rod. The mounting plate is fixed to the upper side of the equipment box. There are two U-shaped guide grooves, one of which is fixed to one end of the mounting plate. The support plate is fixed between the two U-shaped guide grooves. The mounting hole is opened in the middle of the support plate. The threaded holes are opened at both ends of the support plate and communicate with the mounting hole. The locking rod is screwed into the threaded hole.

[0008] Furthermore, the drawing machine also includes pressure rollers and support blocks. The pressure rollers are rotatably connected to the drawing rollers on both sides at the upper end, and the support blocks are fixed to the lower end of the dividing column.

[0009] Furthermore, the mounting plate is a triangular plate, and the support block is placed inside the mounting hole.

[0010] Furthermore, the side of the support block is pressed against one side of the inner wall of the mounting hole, and one end of the locking rod is pressed against the side of the support block.

[0011] Furthermore, it also includes a protective component, which includes a U-shaped support frame, a first limiting plate, and a protective railing. The U-shaped support frame is fixed to both ends of the side of the equipment box, the first limiting plate is fixed to the upper inner side of the U-shaped support frame, and the protective railing is inserted between the U-shaped support frame and the protective railing.

[0012] Furthermore, the protective assembly also includes a support shaft and a roller. One end of the support shaft is fixed to the lower inner side of the U-shaped support frame, and the roller is rotatably connected to the support shaft.

[0013] Furthermore, the protective assembly also includes a second limiting plate and a groove. The second limiting plate is fixed to the lower inner side of the U-shaped support frame, the groove is formed on the second limiting plate, and one end of the support shaft is placed in the groove.

[0014] This utility model has the following beneficial effects:

[0015] This invention, through a specially designed replacement component, allows for the replacement of a new support block and branching post when fibers adhere to the branching post. The new support block and branching post are placed at the lower end of a U-shaped guide groove, ensuring the two ends of the support block align with the groove. The support block is then manually pushed upwards, allowing the branching post to pass through the separated fibers until the new support block reaches the mounting hole on the support plate. The locking rods in the threaded holes at both ends of the new support block are then tightened. Subsequently, the locking rods at both ends of the old support block are loosened. The old support block is then held by hand, allowing it and the branching post to slowly move downwards along the U-shaped guide groove until they are removed. This design allows for the replacement of the branching post without stopping the machine, ensuring normal production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the replacement component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective component structure of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 10. Equipment box; 11. Draft roller; 12. Pressure roller; 13. Support block; 14. Divider column; 20. Mounting plate; 21. U-shaped guide groove; 22. Support plate; 23. Mounting hole; 24. Threaded hole; 25. Locking rod; 30. U-shaped support frame; 31. First limiting plate; 32. Second limiting plate; 33. Groove; 34. Support shaft; 35. Roller; 36. Guardrail. Detailed Implementation

[0022] 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.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Please see Figure 1-2 As shown, this utility model is a filament stretching device for synthetic fiber manufacturing, comprising:

[0025] The drawing machine includes an equipment box 10, a drawing roller 11, and a dividing post 14. The drawing roller 11 is rotatably connected to the side of the equipment box 10, and the dividing post 14 is fixed to one end of the equipment box 10.

[0026] The side of the support block 13 is pressed against one side of the inner wall of the mounting hole 23, and one end of the locking rod 25 is pressed against the side of the support block 13;

[0027] The equipment box 10 serves as a support and contains gears, motors, and reducers to control the rotation of the drafting roller 11. The pressure roller 12 is rotatably connected to the drafting roller 11 at both ends above. The distance between the pressure roller 12 and the drafting roller 11 is controlled by a fixing frame and a hydraulic rod. The support block 13 serves as a support and is used to fix the dividing column 14, which is used to separate fibers.

[0028] Replacement components include mounting plate 20, U-shaped guide groove 21, support plate 22, mounting hole 23, threaded hole 24 and locking rod 25. Mounting plate 20 is fixed to the upper side of the equipment box 10. There are two U-shaped guide grooves 21, one of which is fixed to one end of mounting plate 20. Support plate 22 is fixed between the two U-shaped guide grooves 21. Mounting hole 23 is opened in the middle of support plate 22. Threaded hole 24 is opened at both ends of support plate 22 and communicates with mounting hole 23. Locking rod 25 is screwed into threaded hole 24.

[0029] The drawing machine also includes a pressure roller 12 and a support block 13. The pressure roller 12 is rotatably connected to the drawing rollers 11 on both sides at the upper end, and the support block 13 is fixed to the lower end of the dividing column 14.

[0030] Mounting plate 20 is a triangular plate, and support block 13 is placed in mounting hole 23;

[0031] Mounting plate 20 is used to fix support plate 22. U-shaped guide groove 21 serves to limit and guide. Support plate 22 is used to connect support block 13 and branch post 14. Mounting hole 23 is used to install support block 13. Threaded hole 24 and locking rod 25 are used to fasten support block 13.

[0032] Working principle:

[0033] When fibers adhere to the splitter post 14, place the new support block 13 and the splitter post 14 into the lower end of the U-shaped guide groove 21, so that the two ends of the support block 13 fit into the U-shaped guide groove 21. Push the support block 13 slowly upward, and the splitter post 14 passes through the separated fibers until the new support block 13 moves to the mounting hole 23 of the support plate 22. Tighten the locking rods 25 in the threaded holes 24 at both ends of the new support block 13. Then loosen the locking rods 25 at both ends of the old support block 13. Hold the old support block 13 with your hand and slowly move the old support block 13 and the splitter post 14 down the U-shaped guide groove 21 until they are removed from the U-shaped guide groove 21.

[0034] This step allows for the replacement of the new branch column 14 without shutting down the machine, thus not affecting normal production.

[0035] Please see Figure 1 , Figure 3 As shown, this embodiment, based on the above embodiment, further includes:

[0036] The protective component includes a U-shaped support frame 30, a first limiting plate 31, and a protective railing 36. The U-shaped support frame 30 is fixed to both ends of the side of the equipment box 10, the first limiting plate 31 is fixed to the upper inner side of the U-shaped support frame 30, and the protective railing 36 is inserted between the U-shaped support frame 30 and the protective railing 36.

[0037] The protective assembly also includes a support shaft 34 and a roller 35. One end of the support shaft 34 is fixed to the lower inner side of the U-shaped support frame 30, and the roller 35 is rotatably connected to the support shaft 34.

[0038] The protective assembly also includes a second limiting plate 32 and a groove 33. The second limiting plate 32 is fixed to the lower inner side of the U-shaped support frame 30, and the groove 33 is opened on the second limiting plate 32, with one end of the support shaft 34 placed in the groove 33.

[0039] The U-shaped support frame 30 provides support for the guardrail 36. The first limiting plate 31 and the second limiting plate 32 limit the guardrail 36 to prevent it from tipping over. The groove 33 supports the support shaft 34, which facilitates the rotation of the roller 35. The roller 35 reduces the frictional resistance when the guardrail 36 moves. The guardrail 36 provides protection.

[0040] Working principle:

[0041] Fix the U-shaped support frame 30 to both ends of the equipment box 10, install the first limiting plate 31, the second limiting plate 32, the support shaft 34 and the roller 35, insert the guardrail 36 from the side of the U-shaped support frame 30 between the first limiting plate 31 and the second limiting plate 32. When the stretching machine is in use, pull the fiber so that it is wrapped around the stretching roller 11, and then push the guardrail 36 to push one end of the guardrail 36 into the U-shaped support frame 30 on the other side.

[0042] This step protects the drafting roller 11 of the drafting machine, preventing people from accidentally touching the high-temperature drafting roller 11 during operation.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filament stretching device for synthetic fiber manufacturing, characterized in that, include: The drawing machine includes an equipment box (10), a drawing roller (11) and a dividing post (14). The drawing roller (11) is rotatably connected to the side of the equipment box (10), and the dividing post (14) is fixed to one end of the equipment box (10). The replacement component includes a mounting plate (20), a U-shaped guide groove (21), a support plate (22), a mounting hole (23), a threaded hole (24), and a locking rod (25). The mounting plate (20) is fixed to the upper side of the equipment box (10). There are two U-shaped guide grooves (21), one of which is fixed to one end of the mounting plate (20). The support plate (22) is fixed between the two U-shaped guide grooves (21). The mounting hole (23) is opened in the middle of the support plate (22). The threaded hole (24) is opened at both ends of the support plate (22) and communicates with the mounting hole (23). The locking rod (25) is screwed into the threaded hole (24).

2. The filament stretching device for synthetic fiber manufacturing according to claim 1, characterized in that: The drawing machine also includes a pressure roller (12) and a support block (13). The pressure roller (12) is rotatably connected to the drawing rollers (11) on both sides at the upper end, and the support block (13) is fixed at the lower end of the dividing column (14).

3. The filament stretching device for synthetic fiber manufacturing according to claim 1, characterized in that: The mounting plate (20) is a triangular plate, and the support block (13) is placed in the mounting hole (23).

4. The filament stretching device for synthetic fiber manufacturing according to claim 2, characterized in that: The side of the support block (13) is close to the inner side wall of the mounting hole (23), and one end of the locking rod (25) is close to the side of the support block (13).

5. The filament stretching device for synthetic fiber manufacturing according to claim 1, characterized in that: It also includes a protective component, which includes a U-shaped support frame (30), a first limiting plate (31) and a guardrail (36). The U-shaped support frame (30) is fixed to both ends of the side of the equipment box (10), the first limiting plate (31) is fixed to the upper inner side of the U-shaped support frame (30), and the guardrail (36) is inserted between the U-shaped support frame (30) and the guardrail (36).

6. The filament stretching device for synthetic fiber manufacturing according to claim 5, characterized in that: The protective assembly also includes a support shaft (34) and a roller (35). One end of the support shaft (34) is fixed to the lower inner side of the U-shaped support frame (30), and the roller (35) is rotatably connected to the support shaft (34).

7. The filament stretching device for synthetic fiber manufacturing according to claim 5, characterized in that: The protective assembly also includes a second limiting plate (32) and a groove (33). The second limiting plate (32) is fixed to the lower inner side of the U-shaped support frame (30), and the groove (33) is opened on the second limiting plate (32), and one end of the support shaft (34) is placed in the groove (33).