Quick-change cotton breaking tool module

By using a servo motor to drive the bevel gear set and quick-change structure, the cotton-breaking tool can be quickly disassembled and precisely positioned, solving the problems of slow tool module replacement and inaccurate positioning in traditional tools, and improving production continuity and quality stability.

CN224407839UActive Publication Date: 2026-06-26CHENGDU YIXING TEXTILE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU YIXING TEXTILE CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional cotton-cutting tool modules have slow replacement speed and low positioning accuracy, resulting in poor production continuity and unstable quality.

Method used

It adopts a quick-change structure with servo motor driving bevel gear set, U-shaped connecting rod transmission synchronization, sliding lock and spring plunger cooperation, combined with magnetic retainer and positioning steel ball to realize quick disassembly and assembly and precise positioning of tool.

Benefits of technology

It improves the efficiency of tool changing, ensures the stability and accuracy of cotton cutting quality, reduces the reliance on operator skills, and extends the service life of the module.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to quick change type cutter processing technical field discloses a kind of quick change type cotton breaking cutter module, including workbench, and the workbench outer wall is provided with quick change assembly: the quick change assembly includes protective cover two, the inner wall of protective cover two is provided with three bevel gears, the outer wall of three the bevel gear is uniformly fixedly connected with nut, two the outer wall of nut is rotatably connected with U-shaped connecting rod, the lower surface of bevel gear is fixedly connected with transmission shaft, the outer wall of workbench is fixedly connected with protective cover three, the inner wall of protective cover three is fixedly connected with servo motor. In the utility model, servo motor drives bevel gear set, transmission shaft and other components accurate power transmission, U-shaped connecting rod ensures transmission synchronism, cooperates the quick locking of sliding lock catch and spring plunger, unlocking mechanism, improves tool changing efficiency, the cooperation of positioning steel ball and locking sleeve ensures dismounting positioning accuracy, avoids artificial alignment error, and quality stability is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of quick-change tool processing technology, and in particular to a quick-change cotton-cutting tool module. Background Technology

[0002] In the cotton cutting process of textiles, hygiene products, and other fields, cotton cutting tools are core execution components, and their working efficiency and stability directly affect product quality and production continuity. With the intelligent and efficient upgrading of manufacturing, production lines have placed higher demands on the speed of cotton cutting tool replacement, positioning accuracy, and ease of maintenance. Traditional tool replacement methods are gradually becoming unable to meet the rapid changeover needs in mass production. Developing cotton cutting tool modules with efficient and quick-change functions has become an important direction for technological improvement in the industry.

[0003] Existing cotton-cutting cutter modules typically employ a fixed mounting structure. The cutter is directly secured to the cutter mounting base on the worktable using multiple bolts. Power transmission usually relies on a single gear or belt drive system, with a drive motor driving the cutter to rotate or reciprocate via a reduction mechanism to achieve the cotton-cutting operation. For cutter positioning, coarse positioning is primarily achieved using mechanical limit blocks on the mounting base, with manual adjustments to shims or bolt tightness correcting any positional deviations. The overall structural design focuses on fulfilling basic cotton-cutting functionality, lacking specific optimizations for quick assembly and disassembly.

[0004] However, in the existing technology, the tool replacement process requires manual disassembly of the fixing bolts one by one. After the replacement is completed, the tool position needs to be adjusted through multiple trial cuts. Not only does each replacement take 15-30 minutes, which seriously affects the continuity of production, but manual alignment and positioning are easily affected by operating experience, resulting in large deviations in tool installation. This directly causes unstable cotton cutting size accuracy and quality problems such as burrs and inconsistent lengths. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick-change cotton-cutting knife module, which aims to improve the problems of low replacement efficiency, lack of standardized quick-change structure, complex disassembly, and insufficient structural stability of traditional knives.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change cotton-cutting knife module, including a worktable, wherein a quick-change assembly is provided on the outer wall of the worktable:

[0007] The quick-change assembly includes a second protective cover, on the inner wall of which are three bevel gears. Nuts are fixedly connected to the outer walls of the three bevel gears. U-shaped connecting rods are rotatably connected to the outer walls of two of the nuts. A drive shaft is fixedly connected to the lower surface of each bevel gear. A second fixed plate is fixedly connected to the bottom of the drive shaft. A third protective cover is fixedly connected to the outer wall of the worktable. A servo motor is fixedly connected to the inner wall of the third protective cover. A drive linkage is fixedly connected to the output end of the servo motor. The drive linkage is fixedly connected to one of the bevel gears.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the workbench is provided with a quick-release assembly, which includes a sliding latch. The lower surface of the sliding latch is slidably connected to a housing. A spring plunger is fixedly connected to the inner wall of the housing. A compression spring is provided on the outer wall of the spring plunger. Multiple positioning steel balls are provided on the inner wall of the spring plunger. A locking sleeve is slidably connected to the inner wall of the housing.

[0010] As a further description of the above technical solution:

[0011] A fixing plate is fixedly connected to the outer wall of the workbench. A magnetic retainer is fixedly connected to the outer wall of the fixing plate. A support plate is fixedly connected to the upper surface of the workbench. Positioning blocks are fixedly connected to both sides of the outer wall of the support plate. A connecting plate is fixedly connected to the outer wall of the positioning blocks.

[0012] As a further description of the above technical solution:

[0013] The fixing plate has a round hole on each of its two inner sides.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the second protective cover has two holes, and a drive linkage is fixedly connected to the inner wall of the second protective cover.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the workbench is provided with two locking sleeves. One of the locking sleeves is fixedly connected to a carbide tool, and the lower surface of the carbide tool is provided with a heating wire tool. The other locking sleeve is fixedly connected to a heating wire tool.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the workbench is equipped with a protective cover.

[0020] As a further description of the above technical solution:

[0021] A circular groove is formed on one inner wall of the fixing plate, and a square groove is formed on one inner wall of the fixing plate.

[0022] As a further description of the above technical solution:

[0023] A worktable is slidably connected to the lower surface of the two positioning blocks, and two square grooves are formed on both sides of the outer wall of the worktable.

[0024] As a further description of the above technical solution:

[0025] The outer wall of the locking sleeve is slidably connected with positioning steel balls, and the outer wall of the locking sleeve is engaged with a spring plunger.

[0026] This utility model has the following beneficial effects:

[0027] 1. In this utility model, the servo motor drives the bevel gear set, transmission shaft and other components to accurately transmit power. The U-shaped connecting rod ensures the synchronization of transmission. The sliding lock and spring plunger provide a quick locking and unlocking mechanism to improve the efficiency of tool changing. At the same time, the cooperation between the positioning steel ball and the locking sleeve ensures the positioning accuracy of disassembly and assembly, avoids manual alignment errors and ensures stable cotton cutting quality.

[0028] 2. The sliding adjustment of the positioning block along the square groove of the worktable and the adsorption fixation of the magnetic retainer form a double positioning guarantee, ensuring the long-term stability of the tool's working position accuracy; Protective cover one, protective cover two, and protective cover three constitute an all-round protection system, effectively isolating cotton lint and dust from contaminating core components such as bevel gears and servo motors, reducing the failure rate. The elastic locking force provided by the compression spring avoids loosening problems after long-term use, which reduces the dependence on the operator's skills and extends the service life of the module. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a quick-change cotton-cutting knife module proposed in this utility model;

[0030] Figure 2 This is a three-dimensional structural breakdown diagram of a quick-change cotton-cutting knife module proposed in this utility model.

[0031] Figure 3 This is a schematic diagram of the quick-release component of a quick-change cotton-cutting knife module proposed in this utility model.

[0032] Figure 4 This is a schematic diagram showing the disassembled quick-change component of a quick-change cotton-cutting knife module proposed in this utility model.

[0033] Figure 5 This is a schematic diagram showing the disassembly of a quick-release component of a quick-change cotton-cutting knife module proposed in this utility model.

[0034] Legend:

[0035] 1. Workbench; 2. Protective cover one; 3. Fixing plate one; 4. Carbide cutting tool; 5. Heating wire cutting tool; 6. Support plate; 7. Positioning block; 8. Connecting plate; 9. Magnetic retainer; 10. Sliding lock; 11. Protective cover two; 12. Protective cover three; 13. Drive shaft; 14. Fixing plate two; 15. Servo motor; 16. Bevel gear; 17. Round hole; 18. Nut; 19. U-shaped connecting rod; 20. Drive linkage; 21. Housing; 22. Spring plunger; 23. Compression spring; 24. Positioning steel ball; 25. Locking sleeve. Detailed Implementation

[0036] 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.

[0037] Reference Figure 1 - Figure 3 One embodiment of this utility model is a quick-change cotton-cutting knife module, including a worktable 1, and a quick-change assembly is provided on the outer wall of the worktable 1.

[0038] The quick-change assembly includes a second protective cover 11. Three bevel gears 16 are installed on the inner wall of the second protective cover 11. Nuts 18 are fixedly connected to the outer walls of each of the three bevel gears 16. Two U-shaped connecting rods 19 are rotatably connected to the outer walls of the nuts 18. A drive shaft 13 is fixedly connected to the lower surface of each bevel gear 16. A fixing plate 14 is fixedly connected to the bottom of the drive shaft 13. A third protective cover 12 is fixedly connected to the outer wall of the worktable 1. A servo motor 15 is fixedly connected to the inner wall of the third protective cover 12. A drive linkage 20 is fixedly connected to the output end of the servo motor 15. One end of the drive linkage 20 is fixed to the output end of the servo motor 15, and the other end is connected to one of the bevel gears 16. Its function is to transmit the rotational power of the servo motor 15 to the bevel gears 16, serving as an intermediate connecting component for power transmission. The drive linkage 20 is fixedly connected to one of the bevel gears 16. The three bevel gears 16 are installed on the inner wall of the second protective cover 11 and mesh with each other. Their main function is to complete the power direction conversion. Simultaneously, through meshing transmission, they drive the three nuts 18 to rotate synchronously, realizing the distribution and transmission of power.

[0039] Reference Figure 1 - Figure 5The outer wall of the workbench 1 is equipped with a quick-release assembly, which includes a sliding latch 10. A housing 21 is slidably connected to the lower surface of the sliding latch 10. A spring plunger 22 is fixedly connected to the inner wall of the housing 21. A compression spring 23 is provided on the outer wall of the spring plunger 22. Multiple positioning steel balls 24 are provided on the inner wall of the spring plunger 22. A locking sleeve 25 is slidably connected to the inner wall of the housing 21. A fixing plate 3 is fixedly connected to the outer wall of the workbench 1. A magnetic retainer 9 is fixedly connected to the outer wall of the fixing plate 3. The fixing plate 3 is the mounting carrier for the magnetic retainer 9. The circular and square grooves on its inner wall are used to assist in positioning or connecting other components. Through the adsorption effect of the magnetic retainer 9, the stability of the overall module structure can be enhanced. A support plate 6 is fixedly connected to the upper surface of the workbench 1. Positioning blocks 7 are fixedly connected to both sides of the outer wall of the support plate 6. The outer walls of the positioning blocks 7 are fixedly connected to... A connecting plate 8 and a support plate 6 are fixed to the upper surface of the worktable 1 to support the positioning block 7 and the connecting plate 8, providing a stable bearing base for both and ensuring that the positioning block 7 remains horizontal during sliding adjustment, thereby indirectly ensuring the accuracy of the working position of the tool. A round hole 17 is opened on both sides of the inner side of the fixing plate 2 14. Two holes are opened on the inner wall of the protective cover 2 11. A drive linkage 20 is fixedly connected to the inner wall of the protective cover 2 11. Two locking sleeves 25 are provided on the outer wall of the worktable 1. A carbide tool 4 is fixedly connected to the outer wall of one locking sleeve 25. A heating wire tool 5 is provided on the lower surface of the carbide tool 4. A heating wire tool 5 is fixedly connected to the outer wall of the other locking sleeve 25. The locking sleeves 25 fix the carbide tool 4 and the heating wire tool 5 respectively. The inner wall is engaged with the spring plunger 22, and the outer wall is slidably connected to the positioning steel ball 24. Used to fix the cutting tool, and through cooperation with the spring plunger 22 and the positioning steel ball 24, to achieve quick disassembly and precise positioning of the cutting tool. The outer wall of the worktable 1 is provided with a protective cover 2. The inner wall of the fixing plate 3 has a circular groove and a square groove. The lower surface of the two positioning blocks 7 is slidably connected to the worktable 1. Two square grooves are opened on both sides of the outer wall of the worktable 1. The outer wall of the locking sleeve 25 is slidably connected with the positioning steel ball 24. The outer wall of the locking sleeve 25 is engaged with the spring plunger 22. Under the action of the compression spring 23, the spring plunger 22 fixes the cutting tool by engaging with the locking sleeve 25. When unlocking, it moves with the sliding lock 10 to disengage and release the cutting tool.

[0040] Working principle: First, during normal operation, the support plate 6 supports the positioning block 7 and the connecting plate 8. The positioning block 7 slides along the square grooves on both sides of the worktable 1 to adjust its position. The connecting plate 8 enhances the overall structural stability and ensures that the tool is in a precise working position. The magnetic retainer 9 on the fixed plate 3 fixes the relevant components by magnetic attraction, further improving the stability of the module operation. When the tool needs to be replaced, the positioning block 7 slides along the square grooves on both sides of the worktable 1 to the outside of the worktable 1, exposing the cylindrical slot. The servo motor 15 is started to drive the connecting rod 20 to transmit power to the three bevel gears 16 inside the protective cover 11. The three meshing bevel gears 16 complete the power direction conversion, driving the nuts 18 fixed with them to rotate synchronously. The U-shaped connecting rod 19 ensures that the two nuts 18 move in unison. The power is transmitted to the fixed plate 14 through the transmission shaft 13. The fixed plate 14 drives the quick-release assembly to rotate, completing the quick tool change.

[0041] Secondly, when the tool is damaged or needs to be sharpened or repaired, the sliding lock 10 is manually moved. The spring plunger 22 inside the outer shell 21 overcomes the elasticity of the compression spring 23 and disengages from the locking sleeve 25. The positioning steel ball 24 releases the positioning constraint on the locking sleeve 25, and the carbide tool 4 or the heating wire tool 5 can be easily disassembled. After replacing the tool, the sliding lock 10 is released, the compression spring 23 returns to its original position, and pushes the spring plunger 22 to re-engage with the locking sleeve 25. The positioning steel ball 24 is inserted into the outer wall of the locking sleeve 25 to complete precise positioning, realizing the quick installation and fixation of the tool. During operation, the carbide tool 4 completes the cotton cutting operation through mechanical cutting or the heating wire tool 5 completes the cotton cutting operation through thermal melting. The protective cover 1 2 protects the internal quick-change and quick-disassembly components, the protective cover 2 11 protects the transmission components such as the bevel gear 16, and the protective cover 3 12 encloses the servo motor 15. Together, they isolate impurities and ensure operational safety, ensuring efficient and stable operation of the cotton cutting process.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change cotton-cutting tool module, comprising a worktable (1), characterized in that: The outer wall of the workbench (1) is provided with a quick-change assembly: The quick-change assembly includes a second protective cover (11), the inner wall of which is provided with three bevel gears (16), the outer walls of the three bevel gears (16) are fixedly connected with nuts (18), the outer walls of the two nuts (18) are rotatably connected with U-shaped connecting rods (19), the lower surface of the bevel gears (16) is fixedly connected with a drive shaft (13), the bottom of the drive shaft (13) is fixedly connected with a second fixed plate (14), the outer wall of the worktable (1) is fixedly connected with a third protective cover (12), the inner wall of the third protective cover (12) is fixedly connected with a servo motor (15), the output end of the servo motor (15) is fixedly connected with a drive link (20), and the drive link (20) is fixedly connected to one of the bevel gears (16).

2. The quick-change cotton-cutting knife module according to claim 1, characterized in that: The workbench (1) is provided with a quick-release assembly on its outer wall. The quick-release assembly includes a sliding latch (10). The lower surface of the sliding latch (10) is slidably connected to a housing (21). The inner wall of the housing (21) is fixedly connected to a spring plunger (22). The outer wall of the spring plunger (22) is provided with a compression spring (23). The inner wall of the spring plunger (22) is provided with multiple positioning steel balls (24). The inner wall of the housing (21) is slidably connected to a locking sleeve (25).

3. The quick-change cotton-cutting knife module according to claim 1, characterized in that: The workbench (1) is fixedly connected to a fixing plate (3) on its outer wall. A magnetic fastener (9) is fixedly connected to the outer wall of the fixing plate (3). A support plate (6) is fixedly connected to the upper surface of the workbench (1). Positioning blocks (7) are fixedly connected to both sides of the outer wall of the support plate (6). A connecting plate (8) is fixedly connected to the outer wall of the positioning block (7).

4. The quick-change cotton-cutting knife module according to claim 1, characterized in that: A round hole (17) is provided on both sides of the interior of the fixing plate 2 (14).

5. A quick-change cotton-cutting knife module according to claim 1, characterized in that: The inner wall of the second protective cover (11) has two holes, and a drive linkage (20) is fixedly connected to the inner wall of the second protective cover (11).

6. The quick-change cotton-cutting knife module according to claim 1, characterized in that: The outer wall of the worktable (1) is provided with two locking sleeves (25), one of which is fixedly connected to a carbide tool (4) on its outer wall, and a heating wire tool (5) is provided on the lower surface of the carbide tool (4), and the other is fixedly connected to a heating wire tool (5) on its outer wall.

7. A quick-change cotton-cutting knife module according to claim 1, characterized in that: The outer wall of the workbench (1) is provided with a protective cover (2).

8. A quick-change cotton-cutting knife module according to claim 3, characterized in that: A circular groove is provided on the inner wall of the fixing plate (3), and a square groove is provided on the inner wall of the fixing plate (3).

9. A quick-change cotton-cutting knife module according to claim 3, characterized in that: The two positioning blocks (7) are slidably connected to a worktable (1) on their lower surfaces, and two square grooves are opened on both sides of the outer wall of the worktable (1).

10. A quick-change cotton-cutting knife module according to claim 2, characterized in that: The outer wall of the locking sleeve (25) is slidably connected to a positioning steel ball (24), and the outer wall of the locking sleeve (25) is engaged with a spring plunger (22).