A high-stability slitting mechanism for slitting narrow strips
By automatically correcting wrinkles through guiding and correcting structures, and combining them with clamping structures to achieve automatic transport and fixation of items, the problems caused by wrinkles and manual fixation during transport are solved, thereby improving cutting accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CITY FRIENDS OF LITTLE PRECISION MASCH MFG CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-12
AI Technical Summary
Existing high-stability narrow strip slitting mechanisms are prone to wrinkling during transmission, leading to incorrect cutting lengths, and require manual fixing of items, posing safety hazards.
The system automatically transports items using a guiding and correcting structure. Wrinkles are corrected by guide rollers and correcting rollers, and items are mechanically held in place by a clamping structure, eliminating the need for manual fixing.
It enables automatic correction of items during transportation, avoids cutting length errors caused by wrinkles, improves safety and stability, and reduces errors and safety risks from manual operation.
Smart Images

Figure CN224347943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of narrow strip cutting technology, and in particular to a high-stability narrow strip cutting mechanism. Background Technology
[0002] A high-stability narrow strip slitting mechanism is a mechanical device used to precisely cut wide materials (such as films, paper, metal foils, fabrics, etc.) into narrow strips and maintain high stability during the slitting process. The core design goal of this mechanism is to ensure cutting accuracy, material tension stability, and reduce vibration or deviation, thereby meeting the needs of high-precision industrial production.
[0003] Currently, the high-stability narrow strip slitting mechanism still requires manual pulling and measurement of the item to be cut during use. It cannot automatically transport the item backward. During the transport process, the item is prone to wrinkles, which can cause changes in the measurement results and lead to incorrect cutting lengths. Furthermore, the item needs to be manually fixed during the cutting process, which is prone to errors and may even result in accidental injury from the cutting blade if not careful. This is very dangerous and inconvenient. Utility Model Content
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A high-stability narrow strip slitting mechanism, comprising:
[0006] A support frame, wherein a first working plate is fixedly installed on the upper side of the support frame, a second working plate is slidably connected to the upper side of the support frame, and a cutting device is fixedly connected to the side wall of the first working plate;
[0007] A guide structure is installed on the first working plate. The guide structure includes a support plate fixedly connected to both sides of the first working plate. Two drive shafts are rotatably connected to one side wall of the two support plates. A drive motor is fixedly installed on one side wall of one of the support plates. The output end of the drive motor is fixedly connected to one of the drive shafts. Guide rollers are fixedly sleeved on the outer side of both drive shafts. Spur gears are fixedly sleeved on the outer side of both drive shafts, and the two spur gears mesh with each other.
[0008] Preferably, a correction structure is installed on the first working plate. The correction structure includes two support plates fixedly connected to the side wall of the first working plate. The two support plates are rotatably connected to a rotating shaft. The rotating shaft is connected to one of the drive shafts via a pulley assembly. A correction roller is slidably sleeved on the outside of the rotating shaft. A fixing plate is fixedly connected to the side wall of one of the support plates. Multiple balls are fixedly connected to the side wall of the fixing plate. A protrusion is fixedly connected to the side wall of the correction roller. A baffle is fixedly sleeved on the outside of the rotating shaft. Four springs are fixedly connected between the baffle and the correction roller.
[0009] Preferably, a clamping structure is installed on the second working plate. The clamping structure includes two fixing blocks fixedly connected to the side wall of the second working plate. Each of the two fixing blocks has a clamping plate slidably connected to its side wall. Two springs are fixedly connected between the clamping plate and the fixing block.
[0010] Preferably, a threaded rod is rotatably connected to the side wall of the bracket, and the threaded rod is threadedly connected to the second working plate.
[0011] Preferably, a scale is fixedly installed on the side wall of the bracket.
[0012] Preferably, a knob is fixedly connected to one end of the threaded rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, the guide structure and the correction structure work together to enable the item to be automatically transported backward. During the transport process, the surface of the item can be automatically corrected to avoid wrinkles, thus eliminating the need for manual wrinkle removal and preventing length cutting errors caused by wrinkles during cutting.
[0015] 2. In this utility model, the clamping structure enables the item to be clamped by mechanical force when it is transferred to the corresponding position, eliminating the need for manual fixation, avoiding the instability of manual fixation, and preventing accidental injury from the cutting blade, thus providing better safety. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a high-stability narrow strip cutting mechanism proposed in this utility model;
[0017] Figure 2 This is a side view of the three-dimensional structure of a high-stability narrow strip cutting mechanism proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the correction structure of a high-stability narrow strip cutting mechanism proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the structure and clamping of a high-stability narrow strip cutting mechanism proposed in this utility model.
[0020] In the diagram: 1. Support, 2. First working plate, 3. Second working plate, 4. Cutting device, 5. Support plate one, 6. Drive shaft, 7. Drive motor, 8. Guide roller, 9. Spur gear, 10. Support plate two, 11. Rotating shaft, 12. Pulley assembly, 13. Fixing plate, 14. Ball block, 15. Correcting roller, 16. Protrusion, 17. Baffle, 18. Spring one, 19. Fixing block, 20. Clamping plate, 21. Spring two, 22. Threaded rod, 23. Scale. Detailed Implementation
[0021] Reference Figures 1-4 A high-stability narrow strip cutting mechanism, comprising:
[0022] A bracket 1 is provided, with a first working plate 2 fixedly mounted on its upper side. A second working plate 3 is slidably connected to the upper side of the bracket 1. A threaded rod 22 is rotatably connected to the side wall of the bracket 1 and threadedly connected to the second working plate 3. A knob is fixedly connected to one end of the threaded rod 22. Rotating the knob causes the threaded rod 22 to rotate, thereby controlling the movement of the second working plate 3. The precision characteristics of the threaded rod 22 enable fine-tuning of the distance. A scale 23 is fixedly mounted on the side wall of the bracket 1, allowing the required cutting distance to be determined based on the scale 23. A cutting device 4 is fixedly connected to the side wall of the first working plate 2. The cutting device consists of four hydraulic rods and two cutting blades. The object is cut by the opposing movement of the two cutting blades. This is existing technology and will not be described in detail.
[0023] A guide structure is installed on the first working plate 2. The guide structure includes support plates 5 fixedly connected to both sides of the first working plate 2. The side walls of the two support plates 5 are rotatably connected to two drive shafts 6. A drive motor 7 is fixedly installed on the side wall of one of the support plates 5. The output end of the drive motor 7 is fixedly connected to one of the drive shafts 6. Guide rollers 8 are fixedly sleeved on the outside of both drive shafts 6. Spur gears 9 are fixedly sleeved on the outside of both drive shafts 6, and the two spur gears 9 mesh with each other.
[0024] A correction structure is installed on the first working plate 2. The correction structure includes two support plates 10 fixedly connected to the side wall of the first working plate 2. A rotating shaft 11 is rotatably connected between the support plates 10. The rotating shaft 11 is connected to one of the drive shafts 6 via a pulley assembly 12. The pulley assembly 12 consists of two pulleys and a belt, which transmits the power of the drive shaft 6 to the rotating shaft 11. A correction roller 15 is slidably sleeved on the outside of the rotating shaft 11. The correction roller 15 can slide on the outside of the rotating shaft 11 and can also rotate with the rotation of the rotating shaft 11. One of the support plates 10... A fixing plate 13 is fixedly connected to the side wall of the 10, and multiple ball blocks 14 are fixedly connected to the side wall of the fixing plate 13. A protrusion 16 is fixedly connected to the side wall of the correction roller 15. The ball blocks 14 can squeeze the protrusion 16, thereby causing the correction roller 15 to move. A baffle 17 is fixedly sleeved on the outside of the rotating shaft 11. Four springs 18 are fixedly connected between the baffle 17 and the correction roller 15. When the correction roller 15 is not squeezed by the ball blocks 14, it can rebound by the elastic force of the four springs 18, thereby causing the correction roller 15 to slide left and right. During the rotation, it can slide left and right to achieve the correction effect.
[0025] The second working plate 3 is equipped with a clamping structure, which includes two fixing blocks 19 fixedly connected to the side wall of the second working plate 3. Each fixing block 19 has a clamping plate 20 slidably connected to its side wall. Two springs 21 are fixedly connected between the clamping plate 20 and the fixing blocks 19. The two springs 21 exert a downward pulling force on the clamping plate 20.
[0026] In this invention, by passing one end of the item to be cut between two guide rollers 8, the drive motor 7 is started, causing the drive motor 7 to drive the guide roller 8, which is fixedly sleeved with the drive shaft 6, to rotate. When the drive shaft 6 rotates, it can cause the other drive shaft 6 to rotate through two spur gears 9, thus causing both guide rollers 8 to rotate in opposite directions. This allows the item to be driven backward by the rotation of the guide rollers 8. At the same time, the drive shaft 6 drives the rotating shaft 11 to rotate through the pulley assembly 12. When the rotating shaft 11 rotates, it causes the outer slidingly sleeved correction roller 15 to rotate. When the correction roller 15 rotates, it can slide on the surface of the ball block 14 through the protrusion 16, thus allowing the correction roller 15 to be squeezed and moved. When the protrusion 16 passes the ball block 14, the correction roller 15 is moved. The positive roller 15 rebounds due to the elastic force of four springs 18, allowing the correcting roller 15 to move left and right during rotation. During transmission, it can automatically correct the surface of the item, avoiding wrinkles and eliminating the need for manual wrinkle removal. It also prevents incorrect length cutting due to wrinkles. When the item is conveyed to the upper side of the second working plate 3, the clamping plate 20 is pulled upward. When the item passes between the clamping plate 20 and the second working plate 3, the clamping plate 20 can clamp and fix the item by the tension of spring 21. This allows the item to be mechanically clamped when it is conveyed to the corresponding position, eliminating the need for manual fixing. This avoids the instability of manual fixing and prevents accidental injury from the cutting blade, thus providing better safety.
Claims
1. A high-stability narrow strip slitting mechanism, comprising a support (1), characterized in that, The bracket (1) is fixedly installed with a first working plate (2) on the upper side, and a second working plate (3) is slidably connected to the upper side of the bracket (1). A cutting device (4) is fixedly connected to the side wall of the first working plate (2). A guide structure is installed on the first working plate (2). The guide structure includes a support plate (5) fixedly connected to both sides of the first working plate (2). The side walls of the two support plates (5) are rotatably connected to two drive shafts (6). A drive motor (7) is fixedly installed on the side wall of one of the support plates (5). The output end of the drive motor (7) is fixedly connected to one of the drive shafts (6). Guide rollers (8) are fixedly sleeved on the outside of both drive shafts (6). Spur gears (9) are fixedly sleeved on the outside of both drive shafts (6), and the two spur gears (9) mesh with each other.
2. The high-stability narrow strip slitting mechanism according to claim 1, characterized in that, A correction structure is installed on the first working plate (2). The correction structure includes two support plates (10) fixedly connected to the side wall of the first working plate (2). A rotating shaft (11) is rotatably connected between the two support plates (10). The rotating shaft (11) is connected to one of the drive shafts (6) through a pulley assembly (12). A correction roller (15) is slidably sleeved on the outside of the rotating shaft (11). A fixing plate (13) is fixedly connected to the side wall of one of the support plates (10). A plurality of balls (14) are fixedly connected to the side wall of the fixing plate (13). A protrusion (16) is fixedly connected to the side wall of the correction roller (15). A baffle (17) is fixedly sleeved on the outside of the rotating shaft (11). Four springs (18) are fixedly connected between the baffle (17) and the correction roller (15).
3. The high-stability narrow strip slitting mechanism according to claim 1, characterized in that, The second working plate (3) is equipped with a clamping structure, which includes two fixing blocks (19) fixedly connected to the side wall of the second working plate (3). The side walls of the two fixing blocks (19) are slidably connected with clamping plates (20). Two springs (21) are fixedly connected between the clamping plates (20) and the fixing blocks (19).
4. The high-stability narrow strip slitting mechanism according to claim 1, characterized in that, The side wall of the bracket (1) is rotatably connected to a threaded rod (22), which is threadedly connected to the second working plate (3).
5. The high-stability narrow strip slitting mechanism according to claim 1, characterized in that, A scale (23) is fixedly installed on the side wall of the bracket (1).
6. The high-stability narrow strip slitting mechanism according to claim 4, characterized in that, A knob is fixedly connected to one end of the threaded rod (22).