A slitting machine winding and clamping device
By using a miniature hydraulic cylinder as an anti-detachment clamping component in the slitting machine's winding clamping device, combined with hydraulic control and a transmission inclined plane drive, the problem of loose clamping jaws was solved, achieving stable clamping and winding effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG QUANQI MASCH EQUIP CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-07
AI Technical Summary
The clamping jaws of existing slitting machine winding mechanisms are prone to loosening and surface deformation when dealing with multi-specification sheets due to improper clamping or frictional tension, which affects production efficiency.
Multiple miniature hydraulic cylinders on the second clamp are used as anti-detachment clamping components. Clamping is achieved through hydraulic control, combined with tension bars and drive ramps to ensure the stability and reliability of the clamping jaws.
It effectively prevents the material head from loosening, ensures the stability of the clamping jaws, and improves production efficiency and winding reliability.
Smart Images

Figure CN224467124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of clamping devices, and specifically to a slitting machine winding clamping device. Background Technology
[0002] In slitting production lines for metals or other sheets, the stability of the winding mechanism plays a crucial role in production efficiency. In existing slitting production lines, the slit end is typically placed into the jaws of the winding mechanism; the jaws tighten, clamping the end, and the winding mechanism rotates to achieve winding.
[0003] Utility model patent CN206824419U discloses a high-strength, high-precision steel plate winding drum with automatic jaws. The existing clamping jaws consist of two planes. When metal or other sheets are cut into multiple strips, variations in thickness and width of the sheets can easily lead to loosening due to individual material ends not being clamped tightly, or deformation and unevenness of the clamping surface caused by prolonged friction and tension, affecting the clamping effect and production operations. Simply adding anti-slip grooves to the two planes of the clamping jaws is insufficient to guarantee reliable clamping.
[0004] Therefore, there is still room for improvement and development in existing technologies. Utility Model Content
[0005] To address the problems of existing technologies, this utility model proposes a slitting machine winding clamping device, which can effectively ensure the clamping tightness of the jaws.
[0006] To achieve the above objectives, the technical solution applied in this utility model is as follows:
[0007] A slitting machine winding clamping device includes a winding drum, a first end of which is fixed with a rotating shaft, the rotating shaft being driven to rotate by a first driving assembly; a first clamp, fixed to the winding drum, the first clamp having a first clamping end face; and a second clamp, movably mounted on the winding drum, the second clamp having a second clamping end face; the second clamping end face is correspondingly disposed to the first clamping end face and forms a clamping jaw; the second clamp is driven to move relative to the first clamp by a second driving assembly, and an anti-detachment clamping assembly is provided on the second clamping end face.
[0008] According to the above scheme, the anti-detachment clamping assembly includes a plurality of miniature hydraulic cylinders disposed on the second clamping end face.
[0009] According to the above scheme, multiple miniature hydraulic cylinders are arranged in parallel rows along the axial direction of the winding drum on the second clamping end face; adjacent miniature hydraulic cylinders in the same row are evenly spaced; and adjacent miniature hydraulic cylinders in different rows are staggered.
[0010] According to the above scheme, the second clamp has an inner cavity formed inside, and the inner cavity is filled with hydraulic oil; the second clamping end face is provided with multiple mounting holes, and the miniature hydraulic cylinder is fixed in the mounting holes and connected to the inner cavity; the second clamp is provided with a pressure regulating component for adjusting the hydraulic oil pressure.
[0011] According to the above scheme, the miniature hydraulic cylinder includes a housing and a piston. The housing is fixed in the mounting hole and a hydraulic chamber is formed inside the housing. The hydraulic chamber is connected to the inner cavity through a hydraulic oil inlet. The first end of the piston is slidably located in the hydraulic chamber, and the second end of the piston protrudes from the hydraulic chamber and is convex on the second clamping end face.
[0012] According to the above scheme, anti-slip teeth are formed on the end of the second end of the piston.
[0013] According to the above scheme, multiple sealing rings are fixedly fitted on the outer wall of the piston, and the sealing rings are tightly fitted with the inner wall of the housing.
[0014] According to the above scheme, the hydraulic chamber is provided with porous metal rubber, which is located between the hydraulic oil inlet and the first end of the piston.
[0015] According to the above scheme, the outer wall of the housing is formed with an external thread, and the inner wall of the mounting hole is provided with an internal thread that is threadedly connected to the external thread; a limit post is fixed on the housing, and a waist-shaped limit groove is provided on the outer wall of the piston, with the limit post and the waist-shaped limit groove being correspondingly arranged.
[0016] According to the above scheme, the winding drum is provided with a tension bar, which is connected to the output end of the second drive assembly. The tension bar is provided with a first transmission inclined surface, and the second clamp is provided with a second transmission inclined surface. The first transmission inclined surface and the second transmission inclined surface are correspondingly arranged.
[0017] The beneficial effects of this utility model are:
[0018] The present invention is configured such that, during operation, the material head is placed into the clamping jaws, and the second drive component drives the second clamp to move relative to the first clamp. The anti-detachment clamping component set on the second clamping end face cooperates with the first clamping end face to clamp the material head, thereby ensuring the clamping tightness of the clamping jaws and effectively preventing the material head from loosening. Then, the first drive component drives the rotating shaft to rotate the winding drum to achieve winding. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 yes Figure 1 Schematic diagram of removing the first clamp;
[0021] Figure 3 yes Figure 2 Exploded view of the second clamp and the take-up drum;
[0022] Figure 4 yes Figure 3 Exploded view of the second clamp in the middle;
[0023] Figure 5 yes Figure 4 Partial schematic diagram of a miniature hydraulic cylinder;
[0024] Figure 6 yes Figure 5 Rear view of a miniature hydraulic cylinder;
[0025] Figure 7 yes Figure 6 Exploded view of a miniature oil tank.
[0026] In the picture:
[0027] 1. Rewinding drum; 2. First clamp; 3. Second clamp; 31. Second transmission ramp; 32. Inner cavity; 33. Mounting hole; 4. Clamping jaws; 5. Second drive assembly; 6. Rotary shaft; 7. Tensioning bar; 71. First transmission ramp; 8. Miniature hydraulic cylinder; 81. Housing; 82. Piston; 83. Anti-slip teeth; 84. Sealing ring; 85. Hydraulic chamber; 86. Hydraulic oil inlet; 87. Porous metal rubber; 88. External thread; 89. Limiting post; 810. Limiting groove; 9. Pressure regulating component. Detailed Implementation
[0028] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.
[0029] like Figures 1 to 7 As shown, the slitting machine winding clamping device of this utility model includes a winding drum 1, a rotating shaft 6 fixed at the first end of the winding drum 1, the rotating shaft 6 being driven to rotate by a first driving assembly; a first clamp 2, the first clamp 2 being fixed on the winding drum 1, the first clamp 2 being provided with a first clamping end face; a second clamp 3, the second clamp 3 being movably disposed on the winding drum 1, the second clamp 3 being provided with a second clamping end face; the second clamping end face being correspondingly disposed to the first clamping end face and forming a clamping jaw 4; the second clamp 3 being driven to move relative to the first clamp 2 by a second driving assembly 5, and an anti-detachment clamping assembly being provided on the second clamping end face. With this setup, during operation, the material head is placed into the clamping jaws 4, and the second drive assembly 5 drives the second clamp 3 to move relative to the first clamp 2. The anti-detachment clamping assembly set on the second clamping end face cooperates with the first clamping end face to clamp the material head, thereby ensuring the clamping tightness of the clamping jaws 4 and effectively preventing the material head from loosening. Then, the first drive assembly drives the rotating shaft 6 to rotate the winding drum 1 to achieve winding.
[0030] Furthermore, the anti-detachment clamping assembly includes multiple miniature hydraulic cylinders 8 disposed on the second clamping end face. With this configuration, when the second drive assembly 5 drives the second clamp 3 to move relative to the first clamp 2, the second clamp 3 drives the multiple miniature hydraulic cylinders 8 to move synchronously, which, in conjunction with the first clamping end face of the first clamp 2, clamps the material head.
[0031] Furthermore, multiple miniature hydraulic cylinders 8 are arranged in parallel rows along the axis of the winding drum 1 on the second clamping end face; adjacent miniature hydraulic cylinders 8 in the same row are evenly spaced; and adjacent miniature hydraulic cylinders 8 in different rows are staggered. This arrangement ensures that each slit of material is well clamped, preventing individual slits from being loosened.
[0032] Preferably, the plurality of miniature hydraulic cylinders 8 are arranged in two rows, one above the other.
[0033] Furthermore, the second clamp 3 has an inner cavity 32 formed therein, which is filled with hydraulic oil; the second clamping end face is provided with multiple mounting holes 33, and the miniature hydraulic cylinder 8 is fixed in the mounting holes 33, communicating with the inner cavity 32; the second clamp 3 is provided with a pressure regulating component 9 for adjusting the hydraulic oil pressure. This configuration allows for adjustment of the hydraulic oil pressure by adjusting the pressure regulating component 9, thereby adjusting the clamping force of the miniature hydraulic cylinder 8 on the material head.
[0034] Preferably, the pressure regulating component 9 is an adjusting screw, which can be used to adjust the hydraulic oil pressure by rotating the adjusting screw in both directions, making it easy to operate.
[0035] Furthermore, the miniature hydraulic cylinder 8 includes a housing 81 and a piston 82. The housing 81 is fixed within the mounting hole 33, and a hydraulic chamber 85 is formed within the housing 81. The hydraulic chamber 85 is connected to the inner cavity 32 via a hydraulic oil inlet 86. The first end of the piston 82 slides within the hydraulic chamber 85, and the second end of the piston 82 protrudes from the hydraulic chamber 85 and protrudes onto the second clamping end face. With this configuration, when the second clamp 3 drives the multiple miniature hydraulic cylinders 8 to move relative to the first clamp 2, the material head is clamped by the cooperation of the piston 82 and the first clamping end face of the first clamp 2.
[0036] Furthermore, the piston 82 has anti-slip teeth 83 formed on its second end. This design prevents the material head from sliding relative to the piston 82 in the clamping configuration, thereby making the clamping effect more stable and reliable.
[0037] Furthermore, a plurality of sealing rings 84 are fixedly fitted on the outer wall of the piston 82, and the sealing rings 84 are tightly fitted with the inner wall of the housing 81. This arrangement makes the sealing effect between the outer wall of the piston 82 and the inner wall of the housing 81 more reliable; wherein, in order to prevent the sealing rings 84 from falling off the outer wall of the piston 82, a groove is provided on the outer wall of the piston 82 to mate with the sealing rings 84.
[0038] Furthermore, the hydraulic chamber 85 is provided with a porous metal rubber 87, which is located between the hydraulic oil inlet 86 and the first end of the piston 82. This arrangement allows the porous metal rubber 87 to balance the pressure in the hydraulic chamber 85, enabling the piston 82 to automatically match its height according to the flatness of the first clamping end face of the first clamp 2, thus ensuring that each slit of material is clamped with balanced force.
[0039] The porous metal rubber 87 can also be adjusted and matched in thickness, and under the pressure of no hydraulic oil, it can rely on its own elastic deformation to push the piston 82 to clamp the material head; under the conditions of low pressure and low winding tension, it can stably clamp thin materials (such as film, paper towel and other ultra-thin materials), which can greatly reduce the manufacturing and use cost of the hydraulic cylinder.
[0040] Furthermore, the outer wall of the housing 81 is formed with an external thread 88, and the inner wall of the mounting hole 33 is provided with an internal thread that is threadedly connected to the external thread 88; a limiting post 89 is fixed on the housing 81, and a waist-shaped limiting groove 810 is provided on the outer wall of the piston 82, with the limiting post 89 and the waist-shaped limiting groove 810 correspondingly arranged. In this arrangement, the piston 82 can be prevented from dislodging from the housing 81 by the cooperation of the limiting post 89 and the waist-shaped limiting groove 810, while allowing the piston 82 to slide relative to the housing 81; specifically, one end of the limiting post 89 is fixed on the housing 81, and the other end is located in the waist-shaped limiting groove 810 and is slidably arranged with the waist-shaped limiting groove 810.
[0041] The housing 81 and the mounting hole 33 are threaded together, which facilitates assembly and provides a sealing effect. The housing 81 is provided with holes for assembly with the limiting post 89.
[0042] Furthermore, the winding drum 1 is equipped with a tensioning bar 7, which is connected to the output end of the second drive assembly 5. The tensioning bar 7 has a first transmission inclined surface 71, and the second clamp 3 has a second transmission inclined surface 31. The first transmission inclined surface 71 and the second transmission inclined surface 31 are correspondingly arranged. With this arrangement, when the second drive assembly 5 drives the tensioning bar 7 to move, the positions of the first transmission inclined surface 71 on the tensioning bar 7 and the second transmission inclined surface 31 on the second clamp 3 change, thereby realizing that the tensioning bar 7 pushes the second clamp 3 to move relative to the first clamp 2.
[0043] In the initial state, such as Figure 2As shown, the first transmission inclined surface 71 abuts against the second transmission inclined surface 31. When the second drive assembly 5 drives the tension bar 7 to move horizontally in the direction of the rotating shaft 6, the top of the first transmission inclined surface 71 moves along the bottom of the second transmission inclined surface 31, thereby driving the second clamp 3 to move upward, that is, to move in the direction of the first clamp 2.
[0044] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of the present utility model.
Claims
1. A slitting machine winding and clamping device, characterized in that, include: A take-up drum (1) has a rotating shaft (6) fixed at its first end, and the rotating shaft (6) is driven to rotate by a first drive assembly. The first clamp (2) is fixed on the take-up drum (1) and has a first clamping end face. The second clamp (3) is movably mounted on the take-up drum (1) and has a second clamping end face. The second clamping end face is provided with a clamping jaw (4) corresponding to the first clamping end face; The second clamp (3) is driven to move relative to the first clamp (2) by the second drive assembly (5), and an anti-disengagement clamping assembly is provided on the second clamping end face.
2. The slitting machine winding clamping device according to claim 1, characterized in that: The anti-detachment clamping assembly includes a plurality of miniature hydraulic cylinders (8) disposed on the second clamping end face.
3. The slitting machine winding clamping device according to claim 2, characterized in that: Multiple miniature hydraulic cylinders (8) are arranged in multiple rows parallel to each other on the second clamping end face along the axial direction of the winding drum (1); adjacent miniature hydraulic cylinders (8) in the same row are evenly spaced; adjacent miniature hydraulic cylinders (8) in different rows are staggered.
4. The slitting machine winding clamping device according to claim 2, characterized in that: The second clamp (3) has an inner cavity (32) formed inside, and the inner cavity (32) is filled with hydraulic oil; the second clamping end face is provided with a plurality of mounting holes (33), the miniature oil cylinder (8) is fixed in the mounting hole (33), and the miniature oil cylinder (8) is connected to the inner cavity (32); the second clamp (3) is provided with a pressure regulating component (9) for adjusting the hydraulic oil pressure.
5. A slitting machine winding clamping device according to claim 4, characterized in that: The miniature hydraulic cylinder (8) includes a housing (81) and a piston (82). The housing (81) is fixed in the mounting hole (33). A hydraulic chamber (85) is formed inside the housing (81). The hydraulic chamber (85) is connected to the inner cavity (32) through a hydraulic oil inlet (86). The first end of the piston (82) is slidably located in the hydraulic chamber (85). The second end of the piston (82) protrudes from the hydraulic chamber (85) and is protruding on the second clamping end face.
6. A slitting machine winding clamping device according to claim 5, characterized in that: The piston (82) has anti-slip teeth (83) formed on the end of the second end.
7. A slitting machine winding clamping device according to claim 5, characterized in that: Multiple sealing rings (84) are fixedly fitted on the outer wall of the piston (82), and the sealing rings (84) are tightly fitted to the inner wall of the housing (81).
8. A slitting machine winding clamping device according to claim 5, characterized in that: The hydraulic chamber (85) is provided with a porous metal rubber (87), which is located between the hydraulic oil inlet (86) and the first end of the piston (82).
9. A slitting machine winding clamping device according to claim 5, characterized in that: The outer wall of the housing (81) is formed with an external thread (88), and the inner wall of the mounting hole (33) is provided with an internal thread that is threadedly connected to the external thread (88); a limiting post (89) is fixed on the housing (81), and a waist-shaped limiting groove (810) is provided on the outer wall of the piston (82), with the limiting post (89) and the waist-shaped limiting groove (810) corresponding to each other.
10. A slitting machine winding clamping device according to claim 2, characterized in that: The winding drum (1) is provided with a tension bar (7), which is connected to the output end of the second drive assembly (5). The tension bar (7) is provided with a first transmission inclined surface (71), and the second clamp (3) is provided with a second transmission inclined surface (31). The first transmission inclined surface (71) and the second transmission inclined surface (31) are correspondingly arranged.