A cutting machine for sealing strip processing

CN224643824UActive Publication Date: 2026-08-18HEBEI BAINUO AUTO COMPONENTS CO LTD
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Patent Information

Application Number
CN202522118349.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-18
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

[0003]传统的切割机刀具更换系统通常采用复杂的螺栓固定或夹紧装置,操作人员需要停机后使用扳手等专用工具逐步松开多个固定点才能完成刀具的拆卸,这种复杂的更换程序不仅操作繁琐耗时,还要求操作人员具备较高的技术水平和丰富的经验,在高强度连续生产环境下频繁的刀具更换操作严重影响了生产效率和设备利用率,延长的换刀时间增加了生产成本并可能导致交货期延误,现有刀具固定方式的低效性已无法满足现代密封条制造对快速换产和柔性生产的需求

Benefits of technology

1、本装置通过创新的快速安装拆卸机构解决了传统切割机刀具更换复杂耗时的技术难题,插杆与固定套的插接结构实现了切割刀的快速连接和分离,插块与切割刀的插接配合为切割刀提供稳定的定位支撑,卡块与转轴的转动配合通过自动让位方式实现对插杆的可靠锁定和快速释放,滑套与限位套的配合通过简单的推拉操作即可完成锁定和解锁,转动套与滑杆的旋转控制为整个固定系统提供便捷的操作方式,拉簧与推力轴承的配合确保操作过程的平稳性和快速响应,有效避免了传统螺栓固定和夹紧装置需要专用工具和复杂步骤的繁琐程序,显著提升了密封条生产的换刀效率和设备利用率,满足了现代密封条制造对快速换产和柔性生产的需求。

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Abstract

The utility model discloses a cutting machine for sealing strip processing, including the stand, the stand top surface fixedly arranged with mount, the mount is fixedly arranged with the cylinder in, the cylinder telescopic end fixedly arranged with the mounting panel, the mounting panel outer wall fixedly arranged with motor, motor output fixedly arranged with the mounting shaft, the mounting shaft rotates in the mounting panel outer wall, the mounting shaft outside abuts with cutting knife and is provided with the fixed mechanism in the cutting knife, the fixed mechanism includes the plug -in rod and the fixed cover, and the plug -in rod is fixed in the mounting shaft outer wall and is fixed with the plug -in block of outer wall, a plurality of groups are arranged to the plug -in block and are all connected with cutting knife, and the fixed cover is inserted in the plug -in rod top, the fixed cover outer wall is equipped with the installation slot, a plurality of groups are arranged to the installation slot and are all installed with the pivot of inside, a plurality of groups pivot outer wall all rotate with the clamping block that sets up, and the plug -in rod outer wall is equipped with the clamping groove, and the plug -in structure of plug -in rod and fixed cover realizes the quick connection and separation of cutting knife.
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Description

Technical Field

[0001] This utility model relates to the field of sealing strip processing technology, and more specifically, it relates to a cutting machine for sealing strip processing. Background Technology

[0002] During the manufacturing process of sealing strips, sealing strips of different specifications and materials need to be precisely cut using corresponding special cutting tools. The production line often needs to quickly switch between different models of cutting tools according to order requirements to adapt to diverse product specifications.

[0003] Traditional cutting machine tool changing systems typically employ complex bolt fixing or clamping devices. Operators need to stop the machine and use specialized tools such as wrenches to gradually loosen multiple fixing points to complete the tool removal. This complex replacement procedure is not only cumbersome and time-consuming, but also requires operators to have a high level of technical skill and rich experience. In high-intensity continuous production environments, frequent tool changing operations seriously affect production efficiency and equipment utilization. The extended tool changing time increases production costs and may lead to delivery delays. The inefficiency of existing tool fixing methods can no longer meet the needs of modern sealing strip manufacturing for rapid production changeover and flexible production.

[0004] The complex tool fixing structure in the existing technology makes tool inspection and maintenance difficult. When tool wear or damage is found, it is often necessary to completely stop the machine and disassemble multiple parts to access the cutting tool. During the disassembly process, improper operation may also cause tool damage or positioning accuracy deviation. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a cutting machine for processing sealing strips to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a cutting machine for processing sealing strips, comprising a placement frame, a mounting frame fixedly mounted on the top surface of the placement frame, a cylinder fixedly mounted inside the mounting frame, a mounting plate fixedly mounted on the telescopic end of the cylinder, a motor fixedly mounted on the outer wall of the mounting plate, a mounting shaft fixedly mounted on the output end of the motor, the mounting shaft rotating on the outer wall of the mounting plate, a cutting blade abutting against the outer side of the mounting shaft, a fixing mechanism provided inside the cutting blade, the fixing mechanism comprising a rod and a fixing sleeve, the rod fixedly mounted on the outer wall of the mounting shaft and a block fixedly mounted on the outer wall, multiple sets of blocks being provided and all inserted into the cutting blade, the fixing sleeve being inserted into the top of the rod, an installation groove being provided on the outer wall of the fixing sleeve, multiple sets of installation grooves being provided and a rotating shaft being mounted on the inner side of each set of rotating shafts, a locking block being rotatably mounted on the outer wall of each set of rotating shafts, a locking groove being provided on the outer wall of the rod, a sliding sleeve being slidably mounted on the outer wall of the fixing sleeve, the sliding sleeve abutting against the outer wall of the multiple sets of locking blocks.

[0007] The present invention is further configured such that the bottom surfaces of the multiple sets of card blocks are all arc-shaped and are slidably connected to the bottom surface of the card slot, providing a smooth sliding trajectory to reduce friction and wear, and achieving smooth engagement and uniform distribution of locking force.

[0008] The present invention is further configured such that a rotating sleeve is rotatably provided on the outer wall of the fixed sleeve, a thrust bearing is connected to the bottom surface of the rotating sleeve, and a tension spring is connected between the thrust bearing and the sliding sleeve to provide automatic reset tension and stable rotational support for the sliding sleeve, thereby achieving smooth operation of the fixing mechanism and rapid response of the locking system.

[0009] The present invention is further configured such that a sliding rod is fixedly provided on the bottom surface of the rotating sleeve, the sliding rod is provided in multiple sets and a limiting block is fixedly provided at the bottom end and the outer wall, a limiting sleeve is fixedly provided on the outer wall of the sliding sleeve, a limiting groove is provided on the outer wall of the limiting sleeve, the limiting groove is provided in multiple sets and an unlocking groove is provided at one end, providing a switching function for rotation control and locking / unlocking of the fixing mechanism, realizing convenient operation and reliable locking in the process of assembling and disassembling the cutting blade.

[0010] The present invention is further configured such that a positioning sleeve is fixedly provided on the top surface of the rotating sleeve, and a sliding hole is provided on the inner wall of the positioning sleeve. Multiple sets of sliding holes are provided, and each set of sliding holes is connected to a push spring. A positioning block is fixedly provided at the bottom end of each set of push springs. The multiple sets of positioning blocks slide in multiple sets of positioning grooves respectively, providing the rotating sleeve with precise angle positioning and automatic reset function, ensuring accurate operation and stable locking of the fixing mechanism.

[0011] The present invention is further configured such that a positioning groove is provided on the outer wall of the fixed sleeve, and the positioning groove is provided in multiple sets and abuts against multiple sets of positioning blocks respectively, so as to provide accurate abutment surface and positioning reference for the positioning blocks, thereby realizing precise angle control and reliable fixation of the rotating sleeve.

[0012] The present invention is further configured such that a guide block is fixedly provided on the inner side of the sliding sleeve, and a guide groove is provided on the outer wall of the fixed sleeve. Multiple sets of the guide groove and the guide block are provided and slidably connected to provide precise sliding guidance for the sliding sleeve to prevent operational deviation and ensure the accuracy of the fixing operation and the stability of the system.

[0013] The present invention is further configured such that a clearance groove is provided on the bottom surface of the placement rack, providing a reasonable cutting space and a waste discharge channel for the cutting of the sealing strip, ensuring the smooth progress of the cutting process and the cleanliness of the work area.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides a cutting machine for processing sealing strips, which has the following beneficial effects: 1. This device solves the technical problem of complex and time-consuming tool replacement in traditional cutting machines through an innovative quick-installation and disassembly mechanism. The insertion structure of the insert rod and the fixed sleeve enables quick connection and separation of the cutting blade. The insertion of the insert block and the cutting blade provides stable positioning support for the cutting blade. The rotation of the locking block and the rotating shaft achieves reliable locking and quick release of the insert rod through an automatic clearance mechanism. The cooperation between the sliding sleeve and the limiting sleeve can be locked and unlocked through a simple push-pull operation. The rotation control of the rotating sleeve and the sliding rod provides a convenient operation method for the entire fixing system. The cooperation between the tension spring and the thrust bearing ensures the smoothness and rapid response of the operation process. It effectively avoids the cumbersome procedures of traditional bolt fixing and clamping devices that require special tools and complex steps, significantly improves the tool replacement efficiency and equipment utilization rate in sealing strip production, and meets the needs of modern sealing strip manufacturing for rapid production changeover and flexible production.

[0015] 2. The optimized precision positioning and locking system of the device enables precise installation and stable fixation of the cutting blade. The cooperation between the positioning sleeve and the positioning block provides precise angular positioning and reliable locking for the rotating sleeve. The push spring provides automatic reset force for the positioning block to ensure positioning accuracy. The multiple sets of cooperation between the guide block and the guide groove provide precise guidance for the sliding sleeve to prevent operational deviation. The sliding connection between the arc-shaped card block and the card slot ensures uniform distribution of locking force and smooth operation. The ingenious cooperation between the limit groove and the unlocking groove can switch between locking and unlocking states through rotation. The entire fixing mechanism maintains excellent positioning accuracy and connection reliability during repeated disassembly and assembly, effectively avoiding the cutting accuracy deviation problem caused by loosening and wear in traditional fixing methods.

[0016] 3. Through the cutting system, this device achieves a perfect combination of efficient cutting and convenient maintenance. The cooperation between the cylinder and the mounting plate provides precise extension and retraction control for the cutting blade, ensuring accurate execution of the cutting action. The rotation cooperation between the motor and the mounting shaft provides stable rotational power for the cutting blade, ensuring cutting quality. The design of the clearance groove provides a reasonable spatial layout for sealing strip cutting. The convenient disassembly and assembly design of the quick-fixing mechanism greatly simplifies the tool inspection and maintenance procedures and shortens downtime. When tool wear or damage is found, it can be quickly replaced without complicated centering and adjustment work. It effectively avoids the problems of difficult maintenance and positioning accuracy deviation of traditional fixing methods, providing an efficient, stable and easy-to-maintain equipment solution for sealing strip cutting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a cutting machine for processing sealing strips according to this utility model; Figure 2 This is a schematic diagram of the cutting blade in this utility model; Figure 3 This is a schematic diagram of the disassembly structure of the cutting blade in this utility model; Figure 4 This is a cross-sectional view of the fixing sleeve in this utility model; Figure 5 This is a cross-sectional view of the positioning sleeve and sliding sleeve in this utility model.

[0018] In the diagram: 1. Placement rack; 2. Mounting rack; 3. Cylinder; 4. Mounting plate; 5. Motor; 6. Mounting shaft; 7. Cutting blade; 8. Insert rod; 9. Fixing sleeve; 10. Insert block; 11. Mounting groove; 12. Rotating shaft; 13. Locking block; 14. Locking groove; 15. Sliding sleeve; 16. Rotating sleeve; 17. Thrust bearing; 18. Tension spring; 19. Sliding rod; 20. Limiting block; 21. Limiting sleeve; 22. Limiting groove; 23. Unlocking groove; 24. Positioning sleeve; 25. Sliding hole; 26. Push spring; 27. Positioning block; 28. Positioning groove; 29. ​​Guide block; 30. Guide groove; 31. Clearance groove. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figures 1-5 A cutting machine for processing sealing strips includes a placement frame 1, a mounting frame 2 fixedly mounted on the top surface of the placement frame 1, a cylinder 3 fixedly mounted inside the mounting frame 2, a mounting plate 4 fixedly mounted on the telescopic end of the cylinder 3, a motor 5 fixedly mounted on the outer wall of the mounting plate 4, a mounting shaft 6 fixedly mounted on the output end of the motor 5, the mounting shaft 6 rotating on the outer wall of the mounting plate 4, a cutting blade 7 abutting against the outer side of the mounting shaft 6, a fixing mechanism provided inside the cutting blade 7, the fixing mechanism including a rod 8 and a fixing sleeve 9, the rod 8 fixedly mounted on the outer wall of the mounting shaft 6 and a block 10 fixedly mounted on the outer wall, multiple sets of blocks 10 being provided and all being inserted into the cutting blade 7, the fixing sleeve 9 being inserted into the top end of the rod 8, an installation groove 11 being provided on the outer wall of the fixing sleeve 9, multiple sets of installation grooves 11 being provided and a rotating shaft 12 being installed on the inner side of each set of rotating shafts 12, a locking block 13 being rotatably mounted on the outer wall of each set of rotating shafts 12, a locking groove 14 being provided on the outer wall of the rod 8, and a sliding sleeve 15 being slidably mounted on the outer wall of the fixing sleeve 9, the sliding sleeve 15 abutting against the outer wall of the multiple sets of locking blocks 13.

[0023] The bottom surfaces of multiple sets of card blocks 13 are all arc-shaped and are slidably connected to the bottom surface of the card slot 14.

[0024] The outer wall of the fixed sleeve 9 is provided with a rotating sleeve 16, the bottom surface of the rotating sleeve 16 is connected to a thrust bearing 17, and a tension spring 18 is connected between the thrust bearing 17 and the sliding sleeve 15. The bottom surface of the rotating sleeve 16 is fixedly provided with a sliding rod 19. Multiple sets of sliding rods 19 are provided, and the bottom end and the outer wall are fixedly provided with a limiting block 20. The outer wall of the sliding sleeve 15 is fixedly provided with a limiting sleeve 21. The outer wall of the limiting sleeve 21 is provided with a limiting groove 22. Multiple sets of limiting grooves 22 are provided, and one end of each is provided with an unlocking groove 23.

[0025] A positioning sleeve 24 is fixedly provided on the top surface of the rotating sleeve 16. A sliding hole 25 is provided on the inner wall of the positioning sleeve 24. Multiple sets of sliding holes 25 are provided, and each set of sliding holes 25 is connected to a push spring 26. A positioning block 27 is fixedly provided at the bottom end of each set of push springs 26. The multiple sets of positioning blocks 27 slide in multiple sets of positioning grooves 28 respectively.

[0026] The outer wall of the fixed sleeve 9 is provided with a positioning groove 28, and the positioning groove 28 is provided in multiple sets and abuts against multiple sets of positioning blocks 27 respectively.

[0027] A guide block 29 is fixedly provided on the inner side of the sliding sleeve 15, and a guide groove 30 is provided on the outer wall of the fixed sleeve 9. Multiple sets of guide grooves 30 and guide blocks 29 are provided and are slidably connected.

[0028] The bottom surface of the placement rack 1 is provided with a clearance groove 31.

[0029] In this embodiment, the cutting blade 7 is first installed by inserting it into the insertion rod 8 so that the cutting blade 7 abuts against the outer wall of the mounting shaft 6. Then, the fixing sleeve 9 is inserted into the insertion rod 8. The tension spring 18 pulls the sliding sleeve 15 to release the abutment of the multiple sets of locking blocks 13. The top of the insertion rod 8 pushes the multiple sets of locking blocks 13 to rotate along the rotating shaft 12 and make room for the insertion rod 8. Then, the limiting sleeve 21 is pushed to cause the sliding sleeve 15 to abut against the outer wall of the multiple sets of locking blocks 13, so that the multiple sets of locking blocks 13 are locked. The sleeve is placed in the slot 14, and then the rotating sleeve 16 is rotated to drive multiple sets of sliding rods 19 to slide into the limiting groove 22, so that multiple sets of limiting blocks 20 abut against both sides of the limiting sleeve 21 to limit the sliding sleeve 15. Multiple sets of push springs 26 push the positioning block 27 to abut against the positioning groove 28 to position the rotating sleeve 16. The fixing sleeve 9 abuts against the outer wall of the cutting blade 7 to fix it. The sealing strip is placed on the placement frame 1, and the cylinder 3 pushes the mounting plate 4 to drive the cutting blade 7 to cut the sealing strip.

[0030] More specifically, when the cutting blade 7 needs to be disassembled, rotating the rotating sleeve 16 drives multiple sets of sliding rods 19 to rotate, and at the same time drives the positioning sleeve 24 to rotate. Through multiple sets of positioning grooves 28, the positioning block 27 is pushed out of the positioning groove 28 and squeezes the push spring 26, so that the multiple sets of positioning blocks 27 move within the multiple sets of positioning grooves 28. The multiple sets of sliding rods 19 slide along the limiting groove 22 to the unlocking groove 23, releasing the restriction on the limiting sleeve 21. Through the tension spring 18, the sliding sleeve 15 is pulled to release the abutment of the multiple sets of locking blocks 13. Then the fixing sleeve 9 can be separated from the insertion rod 8. Through the locking groove 14, the locking block 13 is pushed out of the locking groove 14 to release the locking. Then the fixing sleeve 9 releases the abutment of the cutting blade 7, and then the cutting blade 7 can be disassembled.

[0031] In summary, during the use or operation of the overall equipment: First, install the cutting blade 7, inserting it into the insertion rod 8 so that the cutting blade 7 abuts against the outer wall of the mounting shaft 6. Then, insert the fixing sleeve 9 into the insertion rod 8. The tension spring 18 pulls the sliding sleeve 15 to release the abutment of the multiple sets of locking blocks 13. The top of the insertion rod 8 pushes the multiple sets of locking blocks 13 to rotate along the rotating shaft 12 and make room for the insertion rod 8. Subsequently, the limiting sleeve 21 is pushed to cause the sliding sleeve 15 to abut against the outer wall of the multiple sets of locking blocks 13, so that the multiple sets of locking blocks... Block 13 is engaged in the slot 14, and then the rotating sleeve 16 is rotated to drive multiple sets of sliding rods 19 to slide into the limiting groove 22, so that multiple sets of limiting blocks 20 abut against both sides of the limiting sleeve 21 to limit the sliding sleeve 15. Multiple sets of push springs 26 push the positioning block 27 to abut against the positioning groove 28 to position the rotating sleeve 16. The fixing sleeve 9 abuts against the outer wall of the cutting blade 7 to fix it. The sealing strip is placed on the placement frame 1, and the cylinder 3 pushes the mounting plate 4 to drive the cutting blade 7 to cut the sealing strip.

[0032] When the cutting blade 7 needs to be disassembled, rotating the rotating sleeve 16 drives multiple sets of sliding rods 19 to rotate, and at the same time drives the positioning sleeve 24 to rotate. Through multiple sets of positioning grooves 28, the positioning block 27 is pushed out of the positioning groove 28 and squeezes the push spring 26, so that the multiple sets of positioning blocks 27 move within the multiple sets of positioning grooves 28. The multiple sets of sliding rods 19 slide along the limiting groove 22 to the unlocking groove 23, releasing the restriction on the limiting sleeve 21. Through the tension spring 18, the sliding sleeve 15 is pulled to release the abutment of the multiple sets of locking blocks 13. Then the fixing sleeve 9 can be separated from the insertion rod 8. Through the locking groove 14, the locking block 13 is pushed out of the locking groove 14 to release the locking. Then the fixing sleeve 9 releases the abutment of the cutting blade 7, and then the cutting blade 7 can be disassembled.

[0033] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. 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 cutting machine for processing sealing strips, comprising a placement rack (1), characterized in that: The top surface of the placement rack (1) is fixedly provided with a mounting frame (2), a cylinder (3) is fixedly provided inside the mounting frame (2), a mounting plate (4) is fixedly provided at the telescopic end of the cylinder (3), a motor (5) is fixedly provided on the outer wall of the mounting plate (4), and a mounting shaft (6) is fixedly provided at the output end of the motor (5). The mounting shaft (6) rotates on the outer wall of the mounting plate (4), and a cutting blade (7) is provided on the outer side of the mounting shaft (6). A fixing mechanism is provided inside the cutting blade (7), and the fixing mechanism includes a plug rod (8) and a fixing sleeve (9). The plug rod (8) is fixed to the mounting shaft. (6) An insert (10) is fixedly provided on the outer wall. The insert (10) is provided in multiple sets and is inserted into the cutting blade (7). The fixing sleeve (9) is inserted into the top of the insert rod (8). The fixing sleeve (9) has an installation groove (11) on its outer wall. The installation groove (11) is provided in multiple sets and is provided with a rotating shaft (12) on its inner side. The outer walls of the multiple sets of rotating shafts (12) are provided with a locking block (13). The outer wall of the insert rod (8) has a locking groove (14). The outer wall of the fixing sleeve (9) is provided with a sliding sleeve (15). The sliding sleeve (15) abuts against the outer walls of the multiple sets of locking blocks (13).

2. A cutting machine for processing sealing strips according to claim 1, characterized in that: multiple sets The bottom surface of each card block (13) is set to be arc-shaped and is slidably connected to the bottom surface of the card slot (14).

3. A cutting machine for processing sealing strips according to claim 2, characterized in that: The outer wall of the fixed sleeve (9) is provided with a rotating sleeve (16), and the bottom surface of the rotating sleeve (16) is connected to a thrust bearing (17). A tension spring (18) is connected between the thrust bearing (17) and the sliding sleeve (15).

4. A cutting machine for processing sealing strips according to claim 3, characterized in that: The bottom surface of the rotating sleeve (16) is fixedly provided with a sliding rod (19). The sliding rod (19) is provided with multiple sets and the bottom end and the outer wall are both fixedly provided with a limiting block (20). The outer wall of the sliding sleeve (15) is fixedly provided with a limiting sleeve (21). The outer wall of the limiting sleeve (21) is provided with a limiting groove (22). The limiting groove (22) is provided with multiple sets and one end of each is provided with an unlocking groove (23).

5. A cutting machine for processing sealing strips according to claim 4, characterized in that: The rotating sleeve (16) is fixedly provided with a positioning sleeve (24) on its top surface. The inner wall of the positioning sleeve (24) is provided with a sliding hole (25). The sliding hole (25) is provided with multiple sets and each of the inner walls is connected with a push spring (26). The bottom end of each of the multiple sets of push springs (26) is fixedly provided with a positioning block (27). The multiple sets of positioning blocks (27) slide in the multiple sets of positioning grooves (28).

6. A cutting machine for processing sealing strips according to claim 5, characterized in that: The outer wall of the fixed sleeve (9) is provided with a positioning groove (28), and the positioning groove (28) is provided in multiple sets and abuts against multiple sets of positioning blocks (27).

7. A cutting machine for processing sealing strips according to claim 6, characterized in that: A guide block (29) is fixedly provided on the inner side of the sliding sleeve (15), and a guide groove (30) is provided on the outer wall of the fixed sleeve (9). The guide groove (30) and the guide block (29) are provided in multiple sets and are slidably connected.

8. A cutting machine for processing sealing strips according to claim 7, characterized in that: The bottom surface of the placement rack (1) is provided with a clearance groove (31).