BOPA film fixed-length slitting device

Through the BOPA film fixed-length slitting device, the stepper motor and propulsion cylinder drive slitting ring knife is used to solve the problem of difficult adjustment of the slitting length, and the fixed-length slitting and wide-width adjustment are achieved to meet the diverse needs of customers.

CN223251861UActive Publication Date: 2025-08-22HUARUIDA PACKAGING LTD
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Patent Information

Application Number
CN202422614384.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-08-22
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

During the BOPA film slitting process, it is not convenient to flexibly adjust the slitting length, which makes it impossible to meet the diverse use needs of customers.

Method used

The BOPA film fixed-length slitting device including a film conveying assembly, a lifting assembly and a fixed-length adjustment assembly is adopted to achieve fixed-length slitting and wide-width adjustment by driving the movement of the slitting ring knife through the stepper motor, propulsion cylinder and forward and reverse motor.

Benefits of technology

The fixed-length slitting and wide-frame adjustment of BOPA film is realized, which meets different customer needs and improves the flexibility and efficiency of the slitting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a BOPA (biaxially oriented polyamide) film fixed-length slitting device, which relates to the technical field of BOPA film processing equipment and comprises a mounting bottom plate, film conveying components are mounted on the front side and the rear side of the top wall of the mounting bottom plate, a plurality of lifting components are mounted on the two sides of the top wall of the mounting bottom plate, and sleeving covers are mounted at the ends of the lifting components. A mounting transverse frame is movably clamped in inner cavities of the multiple sets of sleeving covers, multiple sets of strip-shaped holes are formed in the top wall and the bottom wall of the mounting transverse frame, fixed-length adjusting assemblies are installed on the two sides of the inner cavity of the mounting transverse frame, and slitting cutting rings are detachably installed on the two sets of fixed-length adjusting assemblies. The film conveying assembly is started to assist the BOPA film to move, the two lifting assemblies are synchronously started to drive the multiple sets of cutting ring cutters to synchronously move downwards to conduct fixed-length cutting on the BOPA film, the two sets of fixed-length adjusting assemblies are started to drive the cutting ring cutters to synchronously move, and therefore the horizontal distance between the two sets of cutting ring cutters can be adjusted. And the fixed-length slitting width size of the BOPA film can be conveniently adjusted.
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Description

Technical Field

[0001] The utility model relates to the technical field of BOPA film processing equipment, in particular to a BOPA film fixed-length slitting device. Background Art

[0002] BOPA film is an important polymer material with high strength, high toughness, wear resistance, tear resistance and puncture resistance. It also has acid and alkali resistance, oil resistance, grease resistance, chemical solvent resistance and corrosion resistance. As a common packaging material, it is widely used in food processing, medical and health care, and daily chemical packaging.

[0003] When processing BOPA film, it needs to be cut into different widths according to customer requirements. However, it is inconvenient to flexibly adjust the cutting length during the slitting process. Therefore, the utility model proposes a BOPA film fixed-length slitting device that is different from the prior art to solve the above technical problems. Summary of the Invention

[0004] In order to improve the above-mentioned problem of inconvenient and inflexible adjustment of the slitting length during the slitting process, the utility model provides a BOPA film fixed-length slitting device.

[0005] The utility model provides a BOPA film fixed-length slitting device, which adopts the following technical solutions:

[0006] A BOPA film fixed-length slitting device comprises a mounting base plate, film conveying assemblies are installed on the front and rear sides of the top wall of the mounting base plate, multiple groups of lifting assemblies are installed on both sides of the top wall of the mounting base plate, sleeve covers are installed at the ends of the multiple groups of lifting assemblies, mounting cross frames are movably engaged with the inner cavities of the multiple groups of sleeve covers, the top and bottom walls of the mounting cross frames are provided with multiple groups of strip holes, fixed-length adjustment assemblies are installed on both sides of the inner cavity of the mounting cross frame, and slitting ring knives are detachably installed on both groups of the fixed-length adjustment assemblies.

[0007] By adopting the above technical solution, the film conveying component is started to assist the movement of the BOPA film, and the two sets of lifting components are started simultaneously to drive the multi-component cutting ring knife to move downward synchronously to cut the BOPA film to a fixed length. The two sets of fixed-length adjustment components are started to drive the cutting ring knife to move synchronously so that the horizontal distance between the two sets of cutting ring knives can be adjusted, which is convenient for adjusting the width size of the fixed-length slitting of the BOPA film.

[0008] Optionally, the film conveying assembly includes a stepper motor, which is fixed to one end of the top wall of the mounting base plate through a pad, and a rotating shaft is installed at the output end of the stepper motor. A conduction roller is fixedly sleeved on the outer wall of the rotating shaft, and the end of the rotating shaft is rotatably connected to a fixed vertical plate through a bearing, and the bottom end of the fixed vertical plate is fixed to the top wall position of the mounting base plate.

[0009] By adopting the above technical solution, the BOPA film to be cut is sequentially wound on the conductive roller, and the stepper motor is started to drive the rotating shaft to rotate, thereby driving the conductive roller to rotate synchronously and thus assisting the movement of the BOPA film.

[0010] Optionally, the lifting assembly includes an installation vertical frame, which is fixed on the top wall of the installation base plate. A propulsion cylinder is fixed at the bottom wall of the inner cavity of the installation vertical frame. The output end of the propulsion cylinder is equipped with a installation vertical plate that passes through the top wall of the installation vertical frame. The top of the outer wall of the installation vertical plate is fixed to the outer wall of the socket cover.

[0011] By adopting the above technical solution, the two sets of propulsion cylinders are started to contract synchronously, thereby driving the installation vertical plate, installation horizontal frame, sleeve cover and multi-component cutting ring knife to move downward synchronously. Under the action of the multi-component cutting ring knife, the BOPA film can be cut to a fixed length.

[0012] Optionally, the fixed-length adjustment component includes a forward and reverse motor, which is fixed on the bottom wall of the inner cavity of the installation horizontal frame. The output end of the forward and reverse motor is installed with a screw body, and the end of the screw body is rotatably connected to a partition vertical plate through a bearing. A screw nut is installed on the outside of the screw body, and connecting plates with strip holes are installed on the top and bottom walls of the screw nut. A sliding frame that is movably mounted on the outer wall of the installation horizontal frame is fixed to the end of the connecting plate, and the outer wall of the sliding frame is fixed to the inner wall of the slitting ring.

[0013] By adopting the above technical solution, two sets of forward and reverse motors are started to drive the screw body to rotate, thereby driving the screw nut, connecting plate, sliding frame and slitting ring knife to move synchronously, thereby adjusting the horizontal distance between the two sets of slitting ring knifes.

[0014] Optionally, the outer wall of one side of the slitting ring is provided with multiple groups of second threaded holes, the outer wall of the sliding frame is installed with multiple groups of disassembly plates, and the outer walls of the multiple groups of disassembly plates are movably penetrated with second bolts that match the threads of the second threaded holes.

[0015] Optionally, a plurality of first threaded holes are evenly formed at both ends of the top wall of the mounting transverse frame, and a plurality of first bolts threadably matching the first threaded holes are passed through the top wall of the sleeve cover.

[0016] By adopting the above technical solution, the first bolt is screwed to separate it from the first threaded hole, and then the installation cross frame is pushed horizontally to separate it from the socket cover. Then, the second bolt at the corresponding position is screwed to separate it from the second threaded hole at the corresponding position. Then, the slitting ring is moved horizontally to separate it from the disassembly plate and the sliding frame to remove the slitting ring.

[0017] In summary, the present invention has at least one of the following beneficial effects:

[0018] Starting the two sets of forward and reverse motors drives the screw body to rotate, thereby driving the screw nut, connecting plate, sliding frame and slitting ring knife to move synchronously, thereby adjusting the horizontal distance between the two sets of slitting ring knifes, and facilitating the adjustment of the width size of the fixed-length slitting of BOPA film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0021] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0022] In the figure: 1. First threaded hole; 2. Forward and reverse motor; 3. Install vertical plate; 4. Propulsion cylinder; 5. Install vertical frame; 6. Stepper motor; 7. Install bottom plate; 8. Conducting roller; 9. Rotating shaft; 10. Fixing vertical plate; 11. Installing horizontal frame; 12. Socket cover; 13. Screw body; 14. Screw nut; 15. Slitting ring knife; 16. Separating vertical plate; 17. Strip hole; 18. First bolt; 19. Second bolt; 20. Second threaded hole; 21. Sliding frame; 22. Connecting plate; 23. Disassembly plate. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The utility model is described in further detail.

[0024] Please refer to the attached figure in the instruction manual Figure 1 and 2The present invention provides an embodiment of a BOPA film fixed-length slitting device, comprising a mounting base 7. Film conveying assemblies are mounted on both the front and rear sides of the top wall of the mounting base 7. The film conveying assembly includes a stepper motor 6, which is fixed to one end of the top wall of the mounting base 7 via a spacer. A rotating shaft 9 is mounted on the output end of the stepper motor 6. A conductive roller 8 is fixedly sleeved on the outer wall of the rotating shaft 9. The end of the rotating shaft 9 is rotatably connected to a fixed riser 10 via a bearing. The bottom end of the fixed riser 10 is fixed to the top wall of the mounting base 7. Starting the stepper motor 6 drives the rotating shaft 9 to rotate, thereby driving the conductive roller 8 to rotate synchronously, thereby assisting in the movement of the BOPA film.

[0025] Please refer to the attached figure in the instruction manual Figure 1 and 2 , multiple sets of lifting components are installed on both sides of the top wall of the mounting base plate 7, and the lifting components include a mounting vertical frame 5, which is fixed on the top wall of the mounting base plate 7, and the mounting vertical frame 5 is arranged at the outer side of the stepping motor 6 and the fixed vertical plate 10. A propulsion cylinder 4 is fixed at the bottom wall of the inner cavity of the mounting vertical frame 5, and a mounting vertical plate 3 that passes through the top wall of the mounting vertical frame 5 is installed at the output end of the propulsion cylinder 4, and the longitudinal section of the mounting vertical plate 3 is set to an inverted T shape.

[0026] Please refer to the attached figure in the instruction manual Figure 1 and 2 A socket cover 12 is installed at the top of the outer wall of the mounting vertical plate 3. The cross-section of the socket cover 12 is set to be C-shaped. The inner cavity of multiple groups of socket covers 12 is movably engaged with the mounting horizontal frame 11. The top wall and the bottom wall of the mounting horizontal frame 11 are provided with multiple groups of strip holes 17. Fixed-length adjustment components are installed on both sides of the inner cavity of the mounting horizontal frame 11, and slitting ring knives 15 are detachably installed on the two groups of fixed-length adjustment components.

[0027] Synchronously starting the two groups of propulsion cylinders 4 to contract can drive the installation vertical plate 3 to move downward in the inner cavity of the propulsion cylinder 4. Under the action of the installation vertical plate 3, the installation horizontal frame 11, the socket cover 12 and the multi-component cutting ring knife 15 can be driven to move downward synchronously. Under the action of the multi-component cutting ring knife 15, the purpose of cutting the BOPA film to a fixed length can be achieved.

[0028] Please refer to the attached figure in the instruction manual Figure 1 、 2And 3, the fixed length adjustment component includes a forward and reverse motor 2, which is fixed at the end position of the bottom wall of the inner cavity of the mounting horizontal frame 11, and the output end of the forward and reverse motor 2 is installed with a screw body 13, and the end of the screw body 13 is rotatably connected to the partition vertical plate 16 through a bearing, and the partition vertical plate 16 is fixed at the middle position of the inner cavity of the mounting horizontal frame 11, and a screw nut 14 is installed on the outside of the screw body 13, and a connecting plate 22 with a strip hole 17 is installed at the top and bottom walls of the screw nut 14, and a sliding frame 21 movably mounted on the outer wall of the mounting horizontal frame 11 is fixed at the end of the connecting plate 22, and the outer wall of the sliding frame 21 is fixed to the inner wall of the slitting ring 15.

[0029] Starting the two sets of forward and reverse motors 2 drives the screw body 13 to rotate, thereby driving the screw nut 14, connecting plate 22, sliding frame 21 and slitting ring knife 15 to move synchronously, thereby adjusting the horizontal distance between the two sets of slitting ring knife 15, making it convenient to adjust the width size of the fixed-length slitting of BOPA film.

[0030] Please refer to the attached figure in the instruction manual Figure 1 、 2 3. The outer wall of one side of the slitting ring 15 is provided with multiple sets of second threaded holes 20. The outer wall of the sliding frame 21 is installed with multiple sets of disassembly plates 23. The outer walls of the multiple sets of disassembly plates 23 are movably penetrated with second bolts 19 that threadably match the second threaded holes 20. Multiple sets of first threaded holes 1 are evenly formed at both ends of the top wall of the mounting cross frame 11. The top wall of the sleeve cover 12 is penetrated with multiple sets of first bolts 18 that threadably match the first threaded holes 1.

[0031] Tighten the first bolt 18 to separate it from the first threaded hole 1, then push the mounting cross frame 11 horizontally to move forward or backward in the inner cavity of the socket cover 12 to separate the mounting cross frame 11 from the socket cover 12, then tighten the second bolt 19 at the corresponding position to separate it from the second threaded hole 20 at the corresponding position, then move the slitting ring 15 horizontally to separate it from the disassembly plate 23 and the sliding frame 21 to remove the slitting ring 15.

[0032] Working principle: When using the BOPA film fixed-length slitting device, place the mounting base 7 in an appropriate position, and then wind the BOPA film to be slit on the conduction roller 8 in sequence, start the stepper motor 6 to drive the rotating shaft 9 to rotate, thereby driving the conduction roller 8 to rotate synchronously and assisting the movement of the BOPA film. During its movement, the two groups of propulsion cylinders 4 are synchronously started to contract, thereby driving the mounting vertical plate 3 to move downward in the inner cavity of the propulsion cylinder 4. Under the action of the mounting vertical plate 3, the mounting horizontal frame 11, the socket cover 12 and the multi-component cutting ring knife 15 can be driven to move downward synchronously. Under the action of the multi-component cutting ring knife 15, the purpose of fixed-length slitting of the BOPA film can be achieved.

[0033] Start the two sets of forward and reverse motors 2 to drive the screw body 13 to rotate, thereby driving the screw nut 14 to move synchronously horizontally in the inner cavity of the installation horizontal frame 11. Under the action of the screw nut 14, the connecting plate 22 can be driven to move synchronously in the inner cavity of the strip hole 17, and then the sliding frame 21 can be driven to slide synchronously on the outer wall of the installation horizontal frame 11. Under the action of the sliding frame 21, the slitting ring knife 15 can be driven to move synchronously, thereby adjusting the horizontal spacing between the two sets of slitting ring knives 15, which is convenient for adjusting the width size of the fixed-length slitting of the BOPA film.

[0034] Tighten the first bolt 18 to separate it from the first threaded hole 1, then push the mounting cross frame 11 horizontally to move forward or backward in the inner cavity of the socket cover 12 to separate the mounting cross frame 11 from the socket cover 12, then tighten the second bolt 19 at the corresponding position to separate it from the second threaded hole 20 at the corresponding position, then move the slitting ring 15 horizontally to separate it from the disassembly plate 23 and the sliding frame 21 to disassemble the slitting ring 15, which is convenient for disassembly and replacement when it is damaged.

[0035] The standard parts used in this utility model document can all be purchased from the market. The various components in this utility model document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0036] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A BOPA film fixed-length slitting device, comprising a mounting base (7), characterized in that: Film conveying components are installed on both the front and rear sides of the top wall of the installation base plate (7), and multiple groups of lifting components are installed on both sides of the top wall of the installation base plate (7). The ends of the multiple groups of lifting components are installed with sleeve covers (12), and the inner cavities of the multiple groups of sleeve covers (12) are movably engaged with the installation cross frame (11). The top wall and the bottom wall of the installation cross frame (11) are provided with multiple groups of strip holes (17), and fixed-length adjustment components are installed on both sides of the inner cavity of the installation cross frame (11), and slitting ring knives (15) are detachably installed on both groups of the fixed-length adjustment components.

2. The BOPA film fixed-length slitting device according to claim 1, characterized in that: The film conveying assembly includes a stepper motor (6), which is fixed to one end of the top wall of the mounting base plate (7) through a pad. A rotating shaft (9) is installed at the output end of the stepper motor (6), and a conductive roller (8) is fixedly sleeved on the outer wall of the rotating shaft (9). The end of the rotating shaft (9) is rotatably connected to a fixed vertical plate (10) through a bearing, and the bottom end of the fixed vertical plate (10) is fixed to the top wall position of the mounting base plate (7).

3. The BOPA film fixed-length slitting device according to claim 1, characterized in that: The lifting assembly includes a mounting vertical frame (5), the mounting vertical frame (5) is fixed on the top wall of the mounting base plate (7), a propulsion cylinder (4) is fixed at the bottom wall of the inner cavity of the mounting vertical frame (5), and a mounting vertical plate (3) penetrating the top wall of the mounting vertical frame (5) is installed at the output end of the propulsion cylinder (4), and the top end of the outer wall of the mounting vertical plate (3) is fixed to the outer wall of the socket cover (12).

4. The BOPA film fixed-length slitting device according to claim 1, characterized in that: The fixed-length adjustment component includes a forward and reverse motor (2), which is fixed at the bottom wall of the inner cavity of the mounting horizontal frame (11), and a screw body (13) is installed at the output end of the forward and reverse motor (2), and the end of the screw body (13) is rotatably connected to a partition vertical plate (16) through a bearing, and a screw nut (14) is installed on the outside of the screw body (13), and a connecting plate (22) passing through a strip hole (17) is installed at the top and bottom walls of the screw nut (14), and a sliding frame (21) movably sleeved on the outer wall of the mounting horizontal frame (11) is fixed at the end of the connecting plate (22), and the outer wall of the sliding frame (21) is fixed to the inner wall of the slitting ring knife (15).

5. The BOPA film fixed-length slitting device according to claim 4, characterized in that: The outer wall of one side of the slitting ring knife (15) is provided with a plurality of groups of second threaded holes (20), the outer wall of the sliding frame (21) is installed with a plurality of groups of disassembly plates (23), and the outer walls of the plurality of groups of disassembly plates (23) are movably provided with second bolts (19) that are threadably matched with the second threaded holes (20).

6. The BOPA film fixed-length slitting device according to claim 1, characterized in that: Multiple groups of first threaded holes (1) are evenly formed at both ends of the top wall of the mounting transverse frame (11), and multiple groups of first bolts (18) threadably matching the first threaded holes (1) are passed through the top wall of the sleeve cover (12).