Scraper knife for polyester filament yarn

By designing a polyester filament scraper with a scraping block and a gas delivery system, the problems of scraper safety hazards and low cutting efficiency were solved, achieving efficient filament removal and safe storage.

CN223535310UActive Publication Date: 2025-11-11HANGZHOU JUXIN NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202422721296.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-11-11
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

Existing polyester filament scrapers pose safety hazards when not in use, and the filaments tend to stick to the blade tip during cutting, affecting cutting efficiency.

Method used

Design a scraper structure including a shell, a scraper body, and a scraper block. The scraper body is driven to slide back and forth by a servo motor, and the scraper block removes the adhering wires through the cooperation of a gas pipe and the scraper block, thereby improving cutting efficiency. When not in use, the scraper can be stored in the shell to enhance safety.

Benefits of technology

It effectively avoids the problem of wire adhesion affecting cutting efficiency, while improving the safety of the device. The wire removal block and gas delivery system achieve efficient wire removal, improving safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of textile articles, and discloses a scraper knife for polyester filament yarn, which comprises a shell, chutes are arranged on both sides of an inner cavity of the shell, the interiors of the two chutes are jointly connected with a scraper knife body in a sliding manner, and the top and the bottom of the inner cavity of the shell are fixedly connected with yarn removing blocks. By means of reciprocating sliding of the scraper knife body on the shell and arrangement of the two silk removing blocks, when the scraper knife body slides on the shell in a reciprocating mode, silk threads attached to the scraper knife body can be removed through the two silk removing blocks, and the silk threads removed from the two silk removing blocks are separated from the two silk removing blocks through air conveying or suction force on the multiple second air pipes. The scraper knife body is arranged in the shell, so that reciprocating sliding cutting of the scraper knife body is prevented from being affected by adhesion of the silk threads, the cutting efficiency is improved, the scraper knife body can be stored in the shell, and the taking safety of the device can be improved when the shell is not used.
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Description

Technical Field

[0001] This utility model relates to the field of textile products, specifically a spatula for polyester filament. Background Technology

[0002] A polyester filament scraper is a specialized tool used in the production and processing of polyester filaments. Its main functions are to cut, shape, and clean the surface of the polyester filaments. This scraper is commonly used in industrial production environments, particularly during the stretching, setting, and post-processing of polyester filaments, to improve the quality and surface finish of the polyester fibers.

[0003] When using existing scrapers, the sharp tip poses a significant safety hazard when not in use. Furthermore, when cutting polyester filaments, the filaments tend to adhere to the blade tip. When a large amount of filaments adheres, it can easily affect the smoothness of the polyester filaments during subsequent cuts, greatly reducing the efficiency of the scraper.

[0004] Therefore, it is necessary to design a scraper for polyester filament to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a spatula for polyester filament, which solves the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a scraper for polyester filament, comprising a shell, with grooves on both sides of the inner cavity of the shell, a scraper body slidably connected to the interior of the two grooves, and filament-removing blocks fixedly connected to the top and bottom of the inner cavity of the shell. Connecting blade blocks are installed at the top and bottom of one end of the scraper body, and a second connecting block is fixedly connected to one side of the two connecting blade blocks. A groove is formed at the top of one end of the second connecting block. A top box is fixedly connected to the top of the shell, and square openings are formed at the top of the shell and the bottom of the top box. A servo motor is fixedly connected to the housing. The output shaft of the servo motor is fixedly connected to a first rotating shaft. A turntable is fixedly connected to the bottom end of the first rotating shaft. A connecting shaft is fixedly connected to one side of the bottom of the turntable, and the bottom end of the connecting shaft is slidably inserted into the interior of a groove. A gas box is fixedly connected to one side of the housing. Two symmetrical first air pipes are connected to one side of the gas box, and a gas connecting pipe is connected to the other side of the gas box. One end of each of the two first air pipes is connected to the interior of two wire-cutting blocks. Multiple second air pipes are connected to the outer surfaces of both wire-cutting blocks, and one end of each of the multiple second air pipes is connected to the outer side of the two wire-cutting blocks.

[0007] Preferably, each of the two connecting blades and the shovel body has a mounting hole at one end, and the two connecting blades are connected to one end of the shovel body by bolt threads.

[0008] Preferably, a handle is fixedly inserted into the outer surface of the outer shell on the side away from the blade body, and a first connecting block is fixedly connected to one end of the handle, and the outer surface of the handle is provided with anti-slip texture.

[0009] Preferably, the adjacent sides of the two cutting blocks are respectively attached to the two sides of the scraper body, and the two cutting blocks are located on the side of the outer shell away from the handle.

[0010] Preferably, the top of the outer casing has a connecting groove, and the bottom of the connecting groove has a disassembly port. A cover plate is installed on the outer surface of the connecting groove by two bolts. The cover plate is located directly above the connecting blade block, and the size of the disassembly port matches the size of the connecting blade block.

[0011] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0012] This invention utilizes the reciprocating sliding of the scraper body on the outer shell and the arrangement of two wire-removing blocks. As the scraper body slides back and forth on the outer shell, the two wire-removing blocks remove the wires adhering to the scraper body. Furthermore, the removed wires are separated from the two wire-removing blocks by wind or suction from multiple second air pipes, thus preventing the scraper body's reciprocating cutting from being affected by wire adhesion and improving cutting efficiency. The scraper body can also be stored inside the outer shell, enhancing the safety of handling the device when the outer shell is not in use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the top box structure of this utility model;

[0015] Figure 3 This is an exploded view of the gas box structure of this utility model;

[0016] Figure 4 This is an exploded view of the outer shell structure of this utility model;

[0017] In the diagram: 1. Outer shell; 2. Top box; 3. Servo motor; 4. Handle; 5. First connecting block; 6. Cover plate; 7. Shovel body; 8. Gas box; 9. Gas connecting pipe; 10. First rotating shaft; 11. Turntable; 12. Connecting insert shaft; 13. First connecting block; 14. Connecting blade block; 15. Wire-cutting block; 16. Slide groove; 17. First air pipe; 18. Second air pipe; 19. Connecting groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-4This utility model provides a scraper for polyester filament, including a shell 1. The inner cavity of the shell 1 has grooves 16 on both sides. A scraper body 7 is slidably connected to the interior of the two grooves 16. Wire-removing blocks 15 are fixedly connected to the top and bottom of the inner cavity of the shell 1. Connecting blade blocks 14 are installed at the top and bottom of one end of the scraper body 7. A second connecting block 13 is fixedly connected to one side of the two connecting blade blocks 14. A groove is formed at the top of one end of the second connecting block 13. A top box 2 is fixedly connected to the top of the shell 1. Square openings are formed at the top of the shell 1 and the bottom of the top box 2. The top of the top box 2 is fixedly connected to a servo motor 3. The output shaft of the servo motor 3 is fixedly connected to a first rotating shaft 10. A turntable 11 is fixedly connected to the bottom end of the first rotating shaft 10. A connecting shaft 12 is fixedly connected to one side of the bottom of the turntable 11, and the bottom end of the connecting shaft 12 is slidably inserted into the interior of a groove. A gas box 8 is fixedly connected to one side of the outer shell 1. Two symmetrical first air pipes 17 are connected to one side of the gas box 8, and a gas connecting pipe 9 is connected to the other side of the gas box 8. One end of each of the two first air pipes 17 is connected to the interior of two wire-cutting blocks 15. The outer surface of each block 15 is connected to multiple second air pipes 18, and one end of each second air pipe 18 is connected to the outside of two scraping blocks 15. When the outer casing 1 is in use, the servo motor 3 is turned on, and the rotation of the first rotating shaft 10 drives the turntable 11 to rotate. At this time, the connecting shaft 12 at the bottom of the turntable 11 slides back and forth inside the groove of the second connecting block 13, and the connecting shaft 12 performs a circular motion at the bottom of the turntable 11, thereby causing the scraper body 7 to slide back and forth inside the outer casing 1. When the scraper body 7 slides back and forth, and the scraper body 7 is retracted into the outer casing 1, the two scraping blocks 15 are retracted into the outer casing 1. The wire removal blocks 15 remove the wires adhering to the outer surface of the scraper body 7. When the outer casing 1 is in use, a wind power device, such as an exhaust fan and a blower, can be connected through the gas connection pipe 9 to remove the wires removed from the two wire removal blocks 15. The wires are then detached from one side of the two wire removal blocks 15 by the gas box 8 and the two wire removal blocks 15, using multiple second air pipes 18 and wind power. This ensures that the scraper body 7 is not affected by the adhering wires during subsequent cutting, thereby improving cutting efficiency. When the outer casing 1 is not in use, the scraper body 7 is slidably stored inside the outer casing 1, thus avoiding the safety hazards caused by the scraper body 7 when the outer casing 1 is not in use.

[0021] In order to facilitate the reciprocating sliding of the blade body 7 under the drive of the second connecting block 13, mounting holes are provided at one end of both the two connecting blade blocks 14 and the blade body 7, and the two connecting blade blocks 14 are connected to one end of the blade body 7 by bolt threads.

[0022] Furthermore, in order to facilitate hand operation of the entire device, a handle 4 is fixedly inserted into the outer surface of the outer shell 1 on the side away from the blade body 7, and a first connecting block 5 is fixedly connected to one end of the handle 4, and anti-slip texture is provided on the outer surface of the handle 4.

[0023] When the scraper body 7 reciprocates, in order to prevent the wire from continuously adhering to the outer surface of the scraper body 7, the adjacent sides of the two wire-removing blocks 15 are respectively attached to the two sides of the scraper body 7, and the two wire-removing blocks 15 are located on the side of the outer shell 1 away from the handle 4.

[0024] To facilitate the disassembly and assembly of the blade body 7, a connecting groove 19 is provided on the top of the outer shell 1, and a disassembly and assembly port is provided at the bottom of the connecting groove 19. A cover plate 6 is installed on the outer surface of the connecting groove 19 by two bolts. The cover plate 6 is located directly above the connecting blade block 14, and the size of the disassembly and assembly port matches the size of the connecting blade block 14.

[0025] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0026] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0027] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A spatula for polyester filament, comprising a housing (1), characterized in that: The inner cavity of the outer shell (1) is provided with sliding grooves (16) on both sides. A scraper body (7) is slidably connected inside the two sliding grooves (16). The top and bottom of the inner cavity of the outer shell (1) are fixedly connected with scraping blocks (15). A connecting blade block (14) is installed at the top and bottom of one end of the scraper body (7). A second connecting block (13) is fixedly connected to one side of the two connecting blade blocks (14). A groove is provided at the top of one end of the second connecting block (13). A top box (2) is fixedly connected to the top of the outer shell (1). A square opening is provided at the top of the outer shell (1) and the bottom of the top box (2). A servo motor (3) is fixedly connected to the top of the top box (2). The output shaft of the servo motor (3) is fixedly connected with a first rotary... A rotating shaft (10) is fixed to a turntable (11) at its bottom end. A connecting shaft (12) is fixed to one side of the bottom of the turntable (11), and the bottom end of the connecting shaft (12) is slidably inserted into the inside of the groove. A gas box (8) is fixed to one side of the outer shell (1), and two symmetrical first air pipes (17) are connected to one side of the gas box (8). A gas connecting pipe (9) is connected to the other side of the gas box (8). One end of the two first air pipes (17) is connected to the inside of the two cutting blocks (15), and multiple second air pipes (18) are connected to the outer surfaces of the two cutting blocks (15). One end of the multiple second air pipes (18) is connected to the outside of the two cutting blocks (15).

2. The spatula for polyester filament according to claim 1, characterized in that: Each of the two connecting blade blocks (14) and the blade body (7) has a mounting hole at one end, and the two connecting blade blocks (14) are connected to one end of the blade body (7) by bolt thread.

3. A spatula for polyester filament according to claim 1, characterized in that: A handle (4) is fixedly inserted into the outer surface of the outer shell (1) on the side away from the blade body (7), and a first connecting block (5) is fixedly connected to one end of the handle (4), and anti-slip texture is provided on the outer surface of the handle (4).

4. A spatula for polyester filament according to claim 3, characterized in that: The two scraping blocks (15) are respectively attached to the two sides of the scraper body (7), and the two scraping blocks (15) are located on the side of the outer shell (1) away from the handle (4).

5. A spatula for polyester filament according to claim 1, characterized in that: The top of the outer casing (1) is provided with a connecting groove (19), and the bottom of the connecting groove (19) is provided with a disassembly port. The outer surface of the connecting groove (19) is fitted with a cover plate (6) by two bolts. The cover plate (6) is located directly above the connecting blade block (14), and the size of the disassembly port matches the size of the connecting blade block (14).