Film material slitting tool with tension control function

Abstract

The utility model discloses a membrane material slitting cutter with tension control, which comprises a membrane body, a side stabilizing plate, a cutter roller, a cutter head and a cutter holder, the cutter roller is rotatably connected to the side surface of the side stabilizing plate, the cutter head is fixedly sleeved on the surface of the cutter roller, and the cutter holder is fixedly connected to the surface of the side stabilizing plate; a plurality of tension control assemblies are arranged on the top of the cutter holder in a segmented mode and located at the output end of the cutter roller. The sectional tension control assemblies (including the first tension roller) are arranged and directly act on the output end of the knife roller, local tension compensation can be carried out on the slit film material, tension fluctuation caused by narrowing of the slit film width is avoided, the design that the film body is in contact with the top of the first tension roller is adopted, and therefore the film material can be conveniently and rapidly slit. The friction force of the roller surface is utilized to the maximum extent, the membrane material is prevented from deviating, the movable seat and the first spring piece are combined to form an elastic floating structure which can automatically adapt to the thickness change of the membrane material and instantaneous tension impact, and the risk of membrane breakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of slitting tool technology, and in particular to a film slitting tool with tension control. Background Technology

[0002] A membrane is a plastic product. Membranes are relatively thin and wide after manufacturing. They are usually cut into different narrow strips as needed using slitting tools. Slitting tools can be strip-shaped or disc-shaped, and the cutting operation is performed according to requirements. Generally, disc-shaped tools cut the membrane into different narrow strips along the conveying direction.

[0003] Because the tension of a complete film is relatively stable, but each narrow film after slitting has its own independent tension, and if there is no tension between the narrow films, the local tension of each narrow film will change, which may lead to some narrow films going astray or tearing during winding, causing a relatively serious impact on the slitting and winding of narrow films.

[0004] Therefore, how to provide a membrane slitting tool with tension control is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to propose a membrane slitting tool with tension control. This invention solves the problem in the prior art that slitting the membrane into different narrow widths can cause local tension changes, which may lead to misalignment or tearing of the narrow width membrane during winding.

[0006] According to an embodiment of the present invention, a membrane slitting tool with tension control includes a membrane body, a side stabilizing plate, a cutting roller, a cutting disc, and a cutting holder. The cutting roller is rotatably connected to the side of the side stabilizing plate, the cutting disc is fixedly sleeved on the surface of the cutting roller, and the cutting holder is fixedly connected to the surface of the side stabilizing plate. The top section of the cutting holder is provided with multiple sets of tension control components, which are located at the output end of the cutting roller. The tension control components include a tension base and a first tension roller. The first tension roller is rotatably connected to the top of the tension base, and the membrane body is movably connected to the surface of the first tension roller near the topmost position. The cutting roller is located above the cutting holder and the tension control components.

[0007] The tension base component includes a movable groove, a first spring, a movable seat, a bracket, and a first rotating shaft. The movable groove is located on the top of the tool holder. The first spring and the movable seat are both movably connected inside the movable groove. The top of the first spring is movably connected to the bottom of the movable seat. The top of the movable seat extends above the movable groove and the tool holder. The bracket is fixedly connected to the top of the movable seat. The first rotating shaft is rotatably connected to the inner side of the bracket near the top. The first tension roller is fixedly installed at the end of the first rotating shaft away from the bracket.

[0008] The number of cutter discs is greater than one set, the number of tension control components is one more set than the number of cutter discs, and the length of the first tension roller is less than the distance between the two sets of cutter discs and matches the distance between the two sets of cutter discs.

[0009] A support plate is fixedly connected to the side stabilizing plate near the input end of the cutter roller. An adaptive control component is provided on the top of the support plate. A mounting bracket is provided on the top of the adaptive control component. A second tension roller is provided on the inner side of the mounting bracket near the top. The membrane body is movably connected to the top of the second tension roller. A pressure roller is rotatably connected to the surface of the side stabilizing plate at the position between the second tension roller and the cutter roller. The membrane body is movably connected to the bottom of the pressure roller.

[0010] The adaptive control component includes a guide rod, a main rod, and a second spring. The main rod and the guide rod are both fixedly connected to the bottom of the mounting frame. The main rod is located at the axis of symmetry of the mounting frame, and the guide rod is located outside the main rod. The main rod and the guide rod pass through the support plate and extend to the bottom of the support plate. The second spring is movably sleeved on the surface of the main rod located between the support plate and the mounting frame.

[0011] The main rod is a threaded rod, and a nut knob is threadedly connected to the surface of the main rod below the support plate.

[0012] A lever assembly is provided between the mounting bracket and the first rotating shaft. The lever assembly includes a fixed bracket, a positioning shaft, a linkage rod, a limiting slot, and a linkage shaft. The linkage shaft is fixedly installed on the inner side of the mounting bracket. The fixed bracket is fixedly connected to the side of the support plate. The positioning shaft is fixedly connected to the top of the fixed bracket. The linkage rod is rotatably sleeved on the surface of the positioning shaft. The limiting slots are opened at both ends of the linkage rod. One set of limiting slots is movably sleeved on the surface of the first rotating shaft, and the other set of limiting slots is movably sleeved on the surface of the linkage shaft.

[0013] The beneficial effects of this utility model are:

[0014] By setting up segmented tension control components (including the first tension roller), the tension control components (including the first tension roller) act directly on the output end of the cutter roller, which can perform local tension compensation on the slit film material and avoid tension fluctuations caused by the narrowing of the film width after slitting.

[0015] The design of the membrane body contacting the top of the first tension roller maximizes the use of roller surface friction to prevent the membrane material from deviating. The combination of the movable seat and the first spring component forms an elastic floating structure that can automatically adapt to changes in membrane thickness and instantaneous tension impacts, reducing the risk of membrane breakage.

[0016] By setting up adaptive control components and lever components, when the membrane tension changes, the adaptive control components, lever components, and tension control components adaptively adjust according to the tension change, so that the adaptive control components, through the lever components, work in conjunction with the tension control components to achieve a balanced state, thereby effectively controlling the tension of the membrane and stabilizing the tension during the membrane cutting process. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the membrane slitting tool with tension control proposed in this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram showing the connection state of the tension control component, lever component, and adaptive control component in the tension-controlled membrane slitting tool proposed in this utility model.

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the adaptive control component position in the tension-controlled membrane slitting tool proposed in this utility model.

[0021] Figure 4 This is a three-dimensional cross-sectional view of the lever assembly position in the tension-controlled membrane slitting tool proposed in this utility model.

[0022] The attached diagram shows: 1. Membrane body; 2. Side stabilizing plate; 3. Cutter roller; 4. Cutter disc; 5. Cutter holder; 6. Tension control assembly; 7. Tension base component; 8. First tension roller; 9. Movable groove; 10. First spring component; 11. Movable seat; 12. Bracket; 13. First rotating shaft; 14. Support plate; 15. Adaptive control component; 16. Mounting frame; 17. Second tension roller; 18. Pressure roller; 19. Guide rod; 20. Main rod; 21. Second spring component; 22. Nut knob; 23. Lever assembly; 24. Fixing frame; 25. Positioning shaft; 26. Linkage rod; 27. Limiting through groove; 28. Linkage shaft. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] refer to Figure 1-4In this embodiment, the device includes a membrane body 1, a side stabilizing plate 2, a cutter roller 3, a cutter disc 4, and a cutter holder 5. The cutter roller 3 is rotatably connected to the side of the side stabilizing plate 2, the cutter disc 4 is fixedly sleeved on the surface of the cutter roller 3, and the cutter holder 5 is fixedly connected to the surface of the side stabilizing plate 2.

[0025] The top section of the blade holder 5 is provided with multiple sets of tension control components 6. The tension control components 6 are located at the output end of the blade roller 3. The tension control components 6 include a tension base 7 and a first tension roller 8. The first tension roller 8 is rotatably connected to the top of the tension base 7. The membrane body 1 is movably connected to the surface of the first tension roller 8 near the topmost position. The blade roller 3 is located above the blade holder 5 and the tension control components 6.

[0026] The tension base component 7 includes a movable groove 9, a first spring component 10, a movable seat 11, a bracket 12, and a first rotating shaft 13. The movable groove 9 is located on the top of the cutter holder 5. The first spring component 10 and the movable seat 11 are both movably connected inside the movable groove 9. The top of the first spring component 10 is movably connected to the bottom of the movable seat 11. The top of the movable seat 11 extends above the movable groove 9 and the cutter holder 5. The bracket 12 is fixedly connected to the top of the movable seat 11. The first rotating shaft 13 is rotatably connected to the inner side of the bracket 12 near the top. The first tension roller 8 is fixedly installed at the end of the first rotating shaft 13 away from the bracket 12. The number of cutter discs 4 is greater than one set. The number of tension control components 6 is one more set than the number of cutter discs 4. The length of the first tension roller 8 is less than the distance between the two sets of cutter discs 4 and matches the distance between the two sets of cutter discs 4.

[0027] In specific implementation, multiple sets of tension control components 6 are set in the slitting position to control the tension of the slit narrow film in segments. This allows the knife holder 5 to control the tension of individual narrow films. In specific operation, when the tension of the film body 1 changes during the slitting process, the elastic force of the first spring 10 will drive the movable seat 11 to move longitudinally inside the movable groove 9. The longitudinal movement of the movable seat 11 will drive the support 12 and the first rotating shaft 13 to move longitudinally. The longitudinal movement of the first rotating shaft 13 will drive the first tension roller 8 to move longitudinally. The height of the first tension roller 8 will be changed by the elastic force of the first spring 10, so that the first tension roller 8 is raised or lowered to control the tension at that position, so as to avoid the narrow film from shifting or tearing due to tension changes during slitting.

[0028] refer to Figure 1-4In this embodiment, a support plate 14 is fixedly connected to the side stabilizing plate 2 near the input end of the cutter roller 3. An adaptive control component 15 is provided on the top of the support plate 14, and a mounting frame 16 is provided on the top of the adaptive control component 15. A second tension roller 17 is provided on the inner side of the mounting frame 16 near the top. The membrane body 1 is movably connected to the top of the second tension roller 17. A pressure roller 18 is rotatably connected to the surface of the side stabilizing plate 2 at the position between the second tension roller 17 and the cutter roller 3. The membrane body 1 is movably connected to the bottom of the pressure roller 18. The adaptive control component 15 includes a guide rod 19, a main rod 20, and a second spring component 21. The main rod 20 and the guide rod 19 are both fixedly connected to the bottom of the mounting frame 16. The main rod 20 is located at the axis of symmetry of the mounting frame 16, and the guide rod is located outside the main rod 20. The main rod 20 and the guide rod 19 extend to the bottom of the support plate 14 after passing through the support plate 14. The second spring component 21 is movably sleeved on the surface of the main rod 20 located between the support plate 14 and the mounting frame 16.

[0029] In specific implementation, the adaptive control component 15 is used to control the tension of the membrane body 1 before slitting. When the tension of the membrane body 1 changes, the elastic force of the second spring component 21 will drive the main rod 20 to move longitudinally. The longitudinal movement of the main rod 20 will drive the second tension roller 17 to move longitudinally through the mounting frame 16. In this way, the height of the second tension roller 17 will change. By changing the height of the second tension roller 17, the tension of the membrane body 1 at that position is changed, thereby achieving the purpose of adaptive control of the tension of the membrane body 1 before slitting. It should be noted that the guide rod is used to stabilize the mounting frame 16, so that the mounting frame 16 is stable in the longitudinal direction.

[0030] refer to Figure 1-4 In this embodiment, the main rod 20 is a threaded rod, and a nut knob 22 is threadedly connected to the surface of the main rod 20 at a position below the support plate 14.

[0031] In practice, rotating the nut knob 22 will cause the main rod 20 to move downward. When the main rod 20 moves downward, it will cause the length of the second spring 21 to contract. The contraction of the length of the second spring 21 will cause its own elasticity to change. After contraction, the elasticity of the second spring 21 is stronger, and this makes it convenient to adjust and control the height of the second tension roller 17.

[0032] refer to Figure 1-4In this embodiment, a lever assembly 23 is provided between the mounting frame 16 and the first rotating shaft 13. The lever assembly 23 includes a fixed frame 24, a positioning shaft 25, a linkage rod 26, a limiting groove 27, and a linkage shaft 28. The linkage shaft 28 is fixedly installed on the inner side of the mounting frame 16. The fixed frame 24 is fixedly connected to the side of the support plate 14. The positioning shaft 25 is fixedly connected to the top of the fixed frame 24. The linkage rod 26 is rotatably sleeved on the surface of the positioning shaft 25. The limiting groove 27 is opened at both ends of the linkage rod 26. One set of limiting grooves 27 is movably sleeved on the surface of the first rotating shaft 13, and the other set of limiting grooves 27 is movably sleeved on the surface of the linkage shaft 28.

[0033] In specific implementation, the two ends of the linkage rod 26 are connected to the first tension roller 8 and the second tension roller 17. When the tension position of the first tension roller 8 is greater than that of the second tension roller 17, the tension adjustment of the first tension roller 8 will drive the linkage rod 26 to rotate around the positioning shaft 25 through the first rotating shaft 13 and the limiting groove 27. In this way, the rotation of the linkage rod 26 will drive the mounting frame 16 to move up and down through another limiting groove 27 and the linkage shaft 28, so that when the first tension roller 8 rises, the second tension roller 17 is in a downward state, and when the second tension roller 17 rises, the first tension roller 8 is in a downward state. It should be noted that the diameter of the first rotating shaft 13 matches the width of the limiting groove 27, but the length of the limiting groove 27 is greater than the diameter of the first rotating shaft 13. In this way, the first rotating shaft 13 can move along the limiting groove 27. The design of the linkage shaft 28 and the limiting groove 27 is the same as described above.

[0034] The working principle of this utility model is as follows:

[0035] During operation, the membrane body 1 passes under the pressure roller 18 from the top of the second tension roller 17 and then from the top of the first tension roller 8. The first tension roller 8 and the second tension roller 17 provide tension to the membrane body 1. The cutter disc 4 is located in the gap between the two sets of first tension rollers 8, facilitating the cutting of the membrane body 1 by the cutter disc 4. The tension change of the membrane body 1 as it enters the cutter roller 3 position will cause the height of the second tension roller 17 to change. If the tension of the membrane body 1 at the entrance of the cutter roller 3 is greater than that at the cutter disc 4 position, the second tension roller 17 will descend and, through the lever assembly 23, will link with the first tension roller 8, causing the first tension roller 8 to rise. This compensates for the tension at the cutter disc 4 position. Since the position of the first tension roller 8 is the cutting section, the tension fluctuations generated by the membrane body 1 after cutting will cause the first tension roller 8 to move. The first tension roller 8 changes the tension at this position, keeping the tension at this position balanced with the tension of the membrane body 1 at the entrance of the cutter roller 3. This achieves tension control of the membrane body 1 before and after cutting.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A film material slitting tool with tension control, characterized in that, The membrane body (1), side stabilizing plate (2), cutter roller (3), cutter disc (4) and cutter holder (5) are included. The cutter roller (3) is rotatably connected to the side of the side stabilizing plate (2), the cutter disc (4) is fixedly sleeved on the surface of the cutter roller (3), and the cutter holder (5) is fixedly connected to the surface of the side stabilizing plate (2). The top section of the cutter holder (5) is provided with multiple sets of tension control components (6), and the tension control components (6) are located at the output end of the cutter roller (3); The tension control assembly (6) includes a tension base (7) and a first tension roller (8). The first tension roller (8) is rotatably connected to the top of the tension base (7). The membrane body (1) is movably connected to the surface of the first tension roller (8) near the top. The blade roller (3) is located above the blade holder (5) and the tension control assembly (6).

2. The film slitter with tension control according to claim 1, wherein, The tension base component (7) includes a movable groove (9), a first spring component (10), a movable seat (11), a bracket (12), and a first rotating shaft (13). The movable groove (9) is opened on the top of the knife holder (5). The first spring component (10) and the movable seat (11) are both movably connected inside the movable groove (9). The top of the first spring component (10) is movably connected to the bottom of the movable seat (11). The top of the movable seat (11) extends to the top of the movable groove (9) and the knife holder (5). The bracket (12) is fixedly connected to the top of the movable seat (11). The first rotating shaft (13) is rotatably connected to the inner side of the bracket (12) near the top. The first tension roller (8) is fixedly installed at the end of the first rotating shaft (13) away from the bracket (12).

3. The film slitter with tension control according to claim 2, wherein, The number of cutter discs (4) is greater than one set, the number of tension control components (6) is one more set than the number of cutter discs (4), and the length of the first tension roller (8) is less than the distance between the two sets of cutter discs (4) and matches the distance between the two sets of cutter discs (4).

4. The film slitter with tension control according to claim 3, wherein, A support plate (14) is fixedly connected to the side stabilizing plate (2) near the input end of the cutter roller (3). An adaptive control component (15) is provided on the top of the support plate (14). A mounting frame (16) is provided on the top of the adaptive control component (15). A second tension roller (17) is provided on the inner side of the mounting frame (16) near the top. The membrane body (1) is movably connected to the top of the second tension roller (17). A pressure roller (18) is rotatably connected to the surface of the side stabilizing plate (2) at the position between the second tension roller (17) and the cutter roller (3). The membrane body (1) is movably connected to the bottom of the pressure roller (18).

5. The film slitter with tension control according to claim 4, wherein, The adaptive control component (15) includes a guide rod (19), a main rod (20), and a second spring (21). The main rod (20) and the guide rod (19) are both fixedly connected to the bottom of the mounting bracket (16). The main rod (20) is located at the axis of symmetry of the mounting bracket (16), and the guide rod is located outside the main rod (20). The main rod (20) and the guide rod (19) extend to the bottom of the support plate (14) after passing through the support plate (14). The second spring (21) is movably sleeved on the surface of the main rod (20) located between the support plate (14) and the mounting bracket (16).

6. The film slitter with tension control according to claim 5, wherein, The main rod (20) is a threaded rod, and a nut knob (22) is threaded onto the surface of the main rod (20) below the support plate (14).

7. The film slitter with tension control according to claim 6, wherein, A lever assembly (23) is provided between the mounting bracket (16) and the first rotating shaft (13). The lever assembly (23) includes a fixed bracket (24), a positioning shaft (25), a linkage rod (26), a limiting groove (27), and a linkage shaft (28). The linkage shaft (28) is fixedly installed on the inner side of the mounting bracket (16). The fixed bracket (24) is fixedly connected to the side of the support plate (14). The positioning shaft (25) is fixedly connected to the top of the fixed bracket (24). The linkage rod (26) is rotatably sleeved on the surface of the positioning shaft (25). The limiting groove (27) is opened at both ends of the linkage rod (26). One set of limiting grooves (27) is movably sleeved on the surface of the first rotating shaft (13), and the other set of limiting grooves (27) is movably sleeved on the surface of the linkage shaft (28).

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