A slitting mechanism for a slitting machine

Abstract

This utility model relates to the field of slitting machine technology and discloses a slitting mechanism for a slitting machine, including a frame. A slitting assembly is rotatably connected to the inner side of the frame, and a drive assembly is fixedly connected inside the frame. The slitting assembly includes a rotating roller, a positioning block is installed on the outer side of the rotating roller, and a movable rod is fixedly connected to the outer side of the positioning block. In this slitting mechanism, by pulling the positioning block outward, the movable rod drives the slider to move into the fixed cylinder, compressing the spring, and then the positioning block is fitted into the mounting groove on the rotating roller. Releasing the positioning block, under the elastic force of the spring, the positioning block is locked into the mounting groove. Then, a fixed sleeve is fitted onto the outer side of the positioning rod to prevent the two positioning blocks from detaching from the mounting groove due to centrifugal force when the rotating roller rotates. The slitting knife can then be installed. By removing the fixed sleeve and pulling the positioning block outward, the slitting knife can be removed, achieving quick installation and removal of the slitting knife.

Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, specifically to a slitting mechanism for a slitting machine. Background Technology

[0002] A slitting machine is a specialized piece of machinery used to longitudinally cut wide rolls of materials such as metal coils, plastic films, paper, and fabrics into multiple narrow strips according to preset width specifications using a cutting device such as a disc cutter or milling cutter. Slitting machines are widely used in many industries such as metal processing, packaging and printing, textiles, and electronics.

[0003] In traditional slitting machines, the slitting blades are typically fixed directly to the blade shaft using multiple bolts. When changing or adjusting the blade position, operators must use specialized tools to loosen and tighten each bolt individually. This process is not only time-consuming, labor-intensive, and inefficient, but also prone to uneven bolt tightening torque during the tedious assembly and disassembly process, leading to decreased installation accuracy of the slitting blades, resulting in parallelism errors or improper gaps, which directly affect the slitting quality. Therefore, this paper proposes a slitting mechanism for a slitting machine to address the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a slitting mechanism for a slitting machine to solve the problems of cumbersome disassembly and assembly, low efficiency, and difficulty in ensuring installation accuracy in traditional slitting mechanisms where the slitting blade is fixed with bolts.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a slitting mechanism for a slitting machine, comprising a frame, a slitting assembly rotatably connected to the inner side of the frame, and a drive assembly fixedly connected inside the frame;

[0006] The slitting assembly includes a rotating roller, a positioning block mounted on the outer side of the rotating roller, a movable rod fixedly connected to the outer side of the positioning block, a slider fixedly connected to the side of the movable rod away from the positioning block, a fixed cylinder sleeved on the outer side of the slider, a spring fixedly connected between the slider and the inner wall of the fixed cylinder, a positioning rod fixedly connected to the outer side of the positioning block, a fixed sleeve sleeved on the outer side of the positioning rod, and a slitting knife fixedly connected to the side of the fixed cylinder away from the movable rod.

[0007] Preferably, the rotating roller is rotatably connected to the inner side of the frame, and the surface of the rotating roller has no fewer than three mounting grooves that are evenly spaced.

[0008] Preferably, the positioning block is designed as a semi-circular ring, and two positioning blocks are installed in a single mounting slot and are symmetrically distributed.

[0009] Preferably, three movable rods are fixedly connected to the outer side of each positioning block and are centrally symmetrically distributed. The moving distance of the movable rods is greater than the depth of the mounting groove.

[0010] Preferably, positioning rods are fixedly connected to both the upper and lower sides of the positioning block, and a limiting block is fixedly connected to the side of the positioning rod away from the positioning block. The diameter of the limiting block is larger than the diameter of the positioning rod, and the fixing sleeve is elastic and has a through hole that matches the positioning rod.

[0011] Preferably, the drive assembly includes a drive motor, the output shaft of the drive motor is fixedly connected to a first drive wheel, the outer side of the rotating roller is fixedly connected to a second drive wheel, and a belt drives the first drive wheel and the second drive wheel.

[0012] Preferably, the drive motor is fixedly connected inside the frame, and one side of the rotating roller extends into the frame and is fixedly connected to the transmission wheel.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, this utility model achieves quick assembly and disassembly of the slitting knife by pulling the positioning block outward, causing the movable rod to move the slider into the fixed cylinder, compressing the spring, and then placing the positioning block into the mounting groove on the rotating roller. Releasing the positioning block allows the spring force to engage it in the mounting groove. Then, a fixing sleeve is placed on the outside of the positioning rod to prevent the two positioning blocks from detaching from the mounting groove due to centrifugal force when the rotating roller rotates. The slitting knife can then be installed. By removing the fixing sleeve and pulling the positioning block outward, the slitting knife can be removed.

[0015] Secondly, this utility model, by starting the drive motor, can drive the rotating roller and the slitting knife to rotate under the transmission of the first transmission wheel, the second transmission wheel and the belt, so as to facilitate slitting processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the drive assembly and related parts of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the slitting knife and the fixed cylinder of this utility model;

[0019] Figure 4 This is a partial internal structural diagram of the fixed cylinder of this utility model.

[0020] The components are: 1. Frame; 2. Slitting assembly; 21. Rotary roller; 22. Positioning block; 23. Movable rod; 24. Slider; 25. Fixed cylinder; 26. Spring; 27. Positioning rod; 28. Fixed sleeve; 29. ​​Slitting knife; 3. Drive assembly; 31. Drive motor; 32. Transmission wheel one; 33. Transmission wheel two; 34. Belt. Detailed Implementation

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

[0022] This utility model provides the following technical solution:

[0023] Example 1

[0024] Please see Figure 1 , Figure 3 and Figure 4 A slitting mechanism for a slitting machine includes a frame 1, with a slitting assembly 2 rotatably connected to the inner side of the frame 1;

[0025] The slitting assembly 2 includes a rotating roller 21, a positioning block 22 mounted on the outer side of the rotating roller 21, a movable rod 23 fixedly connected to the outer side of the positioning block 22, a slider 24 fixedly connected to the side of the movable rod 23 away from the positioning block 22, a fixed cylinder 25 sleeved on the outer side of the slider 24, a spring 26 fixedly connected between the slider 24 and the inner wall of the fixed cylinder 25, a positioning rod 27 fixedly connected to the outer side of the positioning block 22, a fixed sleeve 28 sleeved on the outer side of the positioning rod 27, and a slitting knife 29 fixedly connected to the side of the fixed cylinder 25 away from the movable rod 23.

[0026] The rotating roller 21 is rotatably connected to the inner side of the frame 1, and the surface of the rotating roller 21 has no fewer than three mounting grooves that are evenly spaced.

[0027] The roller 21 has at least three equally spaced mounting slots on its surface. This structural design provides sufficient and uniform tool positions, ensuring that the slitting blade 29 can be flexibly and diversely configured according to different slitting requirements. This greatly enhances the versatility and adaptability of the slitting mechanism to meet the processing requirements of materials of different widths.

[0028] The positioning block 22 is designed in a semi-circular shape, and two positioning blocks 22 are installed in a single mounting slot and are symmetrically distributed.

[0029] The positioning block 22 adopts a semi-circular ring design and two are symmetrically installed in a single mounting slot. This structure allows the positioning block 22 to be firmly held in the mounting slot of the roller 21 from both sides like a clamp. The symmetrical clamping force ensures the stable installation of each slitting knife 29 unit, effectively preventing loosening or displacement caused by centrifugal force or vibration during high-speed rotation, and ensuring the smoothness of the slitting process.

[0030] Three movable rods 23 are fixedly connected to the outside of a single positioning block 22 and are centrally symmetrically distributed. The moving distance of the movable rods 23 is greater than the depth of the mounting groove.

[0031] The three centrally symmetrically arranged movable rods 23, in conjunction with the slider 24 and the spring 26, provide uniform support for the slitting knife 29. The movement distance of the movable rods 23 is greater than the depth of the mounting groove, which ensures that the positioning block 22 can be removed from the rotating roller 21.

[0032] Positioning rods 27 are fixedly connected to both the upper and lower sides of the positioning block 22. A limiting block is fixedly connected to the side of the positioning rod 27 away from the positioning block 22. The diameter of the limiting block is larger than the diameter of the positioning rod 27. The fixing sleeve 28 is elastic and has a through hole that matches the positioning rod 27.

[0033] The positioning block 22 is fixedly connected to the positioning rod 27 with limit blocks on both the upper and lower sides and fitted with elastic fixing sleeves 28. This structure utilizes the cooperation between the positioning rod 27 and the fixing sleeve 28 to add axial positioning and elastic constraint in addition to radial buffering. The double fixing mechanism further restricts the overall degree of freedom of movement of the positioning block 22 and the slitting knife 29, preventing them from tilting or swinging.

[0034] Through the above technical solution, by pulling the positioning block 22 outward, the movable rod 23 drives the slider 24 to move into the fixed cylinder 25, compressing the spring 26, and then the positioning block 22 is placed in the mounting groove on the rotating roller 21. The positioning block 22 is released, and under the elastic force of the spring 26, the positioning block 22 is locked into the mounting groove. Then, the fixing sleeve 28 is placed on the outside of the positioning rod 27 to prevent the two positioning blocks 22 from being dislodged from the mounting groove by centrifugal force when the rotating roller 21 rotates. The slitting knife 29 can then be installed. By removing the fixing sleeve 28 and pulling the positioning block 22 outward, the slitting knife 29 can be removed, thus achieving quick installation and removal of the slitting knife 29.

[0035] Example 2

[0036] Please see Figure 2 Furthermore, based on Embodiment 1, the following is obtained: a drive assembly 3 is fixedly connected inside the frame 1;

[0037] The drive assembly 3 includes a drive motor 31, the output shaft of the drive motor 31 is fixedly connected to a first transmission wheel 32, the outer side of the rotating roller 21 is fixedly connected to a second transmission wheel 33, and a belt 34 is connected between the first transmission wheel 32 and the second transmission wheel 33.

[0038] The drive motor 31 is fixedly connected inside the frame 1, and one side of the rotating roller 21 extends into the interior of the frame 1 and is fixedly connected to the transmission wheel 33.

[0039] The power source and the roller 21 are connected by a belt drive 34. Its inherent flexible transmission characteristics can effectively buffer the impact load generated when the motor starts, stops or changes in speed, making the slitting mechanism start more smoothly.

[0040] Through the above technical solution, by starting the drive motor 31, the rotating roller 21 and the slitting knife 29 can be rotated under the transmission of the first transmission wheel 32, the second transmission wheel 33 and the belt 34, so as to facilitate slitting processing.

[0041] In actual operation, when this device is in use, firstly, by pulling the positioning block 22 outward, it causes the movable rod 23 and the slider 24 to compress the spring 26 inside the fixed cylinder 25, thereby installing the positioning block 22 into the mounting groove on the surface of the roller 21. After releasing, it is initially fixed by the elastic force of the spring 26. Then, the elastic fixing sleeve 28 is put on the positioning rod 27 to achieve axial locking and prevent it from falling off due to centrifugal force during high-speed rotation, thus completing the quick installation of the slitting knife 29. The drive motor 31 fixed inside the frame 1 is started, and its output shaft transmits power to the roller 21 through the transmission wheel 32, belt 34 and transmission wheel 33, driving it and all the slitting knives 29 to rotate together, thereby performing slitting operations on the passing material. When it is necessary to replace the slitting knife 29, it is only necessary to remove the fixing sleeve 28 and pull the positioning block 22 again to achieve quick disassembly of the slitting knife 29.

[0042] 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 may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slitting mechanism for a slitting machine, comprising a frame (1), characterized in that: The frame (1) is rotatably connected to the inner side of the slitting assembly (2), and the frame (1) is fixedly connected to the inside of the drive assembly (3). The slitting assembly (2) includes a rotating roller (21), a positioning block (22) is installed on the outer side of the rotating roller (21), a movable rod (23) is fixedly connected to the outer side of the positioning block (22), a slider (24) is fixedly connected to the side of the movable rod (23) away from the positioning block (22), a fixed cylinder (25) is sleeved on the outer side of the slider (24), a spring (26) is fixedly connected between the slider (24) and the inner wall of the fixed cylinder (25), a positioning rod (27) is fixedly connected to the outer side of the positioning block (22), a fixed sleeve (28) is sleeved on the outer side of the positioning rod (27), and a slitting knife (29) is fixedly connected to the side of the fixed cylinder (25) away from the movable rod (23).

2. The slitting mechanism of a slitter according to claim 1, characterized in that: The rotating roller (21) is rotatably connected to the inner side of the frame (1), and the surface of the rotating roller (21) has no less than three mounting grooves that are evenly spaced.

3. A slitting mechanism for a slitter according to claim 2, wherein: The positioning block (22) is designed in a semi-circular shape, and two positioning blocks (22) are installed in a single mounting slot and are symmetrically distributed.

4. The slitting mechanism of a slitter according to claim 2, wherein: Each positioning block (22) has three movable rods (23) fixedly connected to its outer side, which are centrally symmetrically distributed. The movable rods (23) move a distance greater than the depth of the mounting groove.

5. The slitting mechanism of a slitter according to claim 1, characterized in that: Positioning rods (27) are fixedly connected to both the upper and lower sides of the positioning block (22). A limiting block is fixedly connected to the side of the positioning rod (27) away from the positioning block (22). The diameter of the limiting block is larger than the diameter of the positioning rod (27). The fixing sleeve (28) is elastic and has a through hole that matches the positioning rod (27).

6. The slitting mechanism of a slitter according to claim 1, characterized in that: The drive assembly (3) includes a drive motor (31), the output shaft of the drive motor (31) is fixedly connected to a first transmission wheel (32), the outer side of the rotating roller (21) is fixedly connected to a second transmission wheel (33), and a belt (34) is connected between the first transmission wheel (32) and the second transmission wheel (33).

7. A slitting mechanism for a slitter according to claim 6, wherein: The drive motor (31) is fixedly connected inside the frame (1), and one side of the rotating roller (21) extends into the frame (1) and is fixedly connected to the transmission wheel (33).

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