Film slitting device

Abstract

The utility model discloses a film slitting device in the technical field of films, which comprises a main machine body, a sleeve is fixedly connected onto the main machine body, an air cylinder is fixedly connected onto the sleeve, a support shaft is fixedly connected onto the end part of a piston rod of the air cylinder, and a rotating shaft is rotatably connected onto the end part of the support shaft. And the end part of the rotating shaft is fixedly connected with an inflatable shaft. By the adoption of the design scheme that the air cylinder is combined with the air expansion shaft, the operation process is greatly simplified. Traditional equipment often consumes a lot of time to adjust and fix when raw materials are replaced, however, the air cylinder can drive the air expansion shafts to move, a space is reserved between the two air expansion shafts, feeding and discharging are convenient, the air expansion shafts can achieve expansion or contraction rapidly, and therefore the loading and unloading work of film rolls is completed rapidly, and the production efficiency is improved. The downtime is greatly reduced, and the overall operation efficiency of a production line is improved.

Description

Technical Field

[0001] This utility model relates to the field of thin film technology, and in particular to a thin film slitting device. Background Technology

[0002] Film slitting technology, as a crucial component of materials processing, has evolved from manual operation to highly automated equipment. However, despite significant advancements in many areas, challenges remain. For instance, efficiently handling the loading and unloading process for films of varying types, sizes, and thicknesses is a pressing issue. Furthermore, maintaining appropriate tension during slitting ensures cut quality, a parameter that traditional equipment often struggles to precisely control, leading to inconsistent finished product quality.

[0003] Current film slitting equipment on the market typically employs complex mechanical structures for loading and unloading operations. While these designs can meet requirements to some extent, they exhibit numerous inconveniences in practical applications. Especially when frequently changing raw materials, operators need to expend significant time and effort on loading and unloading, reducing overall production efficiency. Furthermore, traditional tension adjustment mechanisms often rely on fixed settings or simple mechanical adjustments, lacking flexibility and easily leading to films that are too tight or too loose, thus affecting the quality of the final product. These issues limit the application scope and development potential of existing technologies in high-precision, large-scale production environments. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a film slitting device, including a main body, a sleeve fixedly connected to the main body, a cylinder fixedly connected to the sleeve, a support shaft fixedly connected to the piston rod end of the cylinder, a rotating shaft rotatably connected to the end of the support shaft, an air expansion shaft fixedly connected to the end of the rotating shaft, a slitting roller rotatably connected to the main body, a plurality of annular blades fixedly connected to the slitting roller, a pressure regulating device installed on the main body, and a support roller installed at the lower part of the slitting roller, the support roller having a first groove formed thereon.

[0005] The pressure regulating device includes a support rod with several second grooves. A lifting rod is inserted into each of the second grooves. A wheel bracket is welded to the lower part of the lifting rod, and a wheel body is connected to the wheel bracket via a rotating shaft.

[0006] The support rod has several screw holes, which are connected to the second groove, and spring bolts are installed in the screw holes.

[0007] The lower part of the pressure regulating device is provided with a guide plate, and the guide plate is provided with an arc-shaped surface.

[0008] A switch is installed on the main body, a first motor is connected to the end of the slitting roller, a second motor is installed on the main body, and the second motor is driven by a slitting roller.

[0009] The main body has an opening for the support shaft to pass through, and an arc-shaped reinforcing plate is fixedly connected to the inner wall of the main body. The air shaft is equipped with a key bar and an air nozzle.

[0010] Compared with existing technologies, the advantages of this invention are as follows: by adopting a design combining a cylinder and an air shaft, the operation process is greatly simplified. Traditional equipment often requires a lot of time for adjustment and fixing when changing raw materials, while the cylinder in this invention can drive the air shaft to move, leaving space between the two air shafts to facilitate loading and unloading. Furthermore, the air shaft itself can quickly expand or contract, thereby rapidly completing the loading and unloading of film rolls, greatly reducing downtime and improving the overall operating efficiency of the production line.

[0011] The pressure regulating device, through the coordinated action of components such as support rods, lifting rods, and spring bolts, can flexibly adjust the pressure according to actual needs and maintain a stable pressure output, ensuring that the membrane is always under optimal tension. This not only improves the quality stability of the finished product but also reduces material waste caused by improper tension, further enhancing economic efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the connection relationship between the cylinder and the support shaft in this utility model.

[0015] Figure 3 This is a schematic diagram of the support roller and the first groove structure in this utility model.

[0016] Figure 4 This is a schematic diagram of the air shaft structure in this utility model.

[0017] Figure 5 This is a schematic diagram of the pressure regulating device in this utility model.

[0018] Figure 6 This is the utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Cylinder; 2. Switch; 3. Sleeve; 4. Slitting roller; 5. Second motor; 6. Pressure regulating device; 61. Support rod; 62. Lifting rod; 63. Wheel body; 64. Wheel bracket; 65. Second groove; 66. Screw hole; 67. Spring bolt; 7. Slitting roller; 8. Support shaft; 9. Arc-shaped reinforcing plate; 10. Rotating shaft; 11. Air expansion shaft; 12. Annular blade; 13. Guide plate; 14. First motor; 15. Support roller; 16. First groove; 17. Air nozzle; 18. Key bar; 19. Arc-shaped surface; 20. Main body. Detailed Implementation

[0020] 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.

[0021] like Figure 1-6 The film slitting device shown includes a main body 20. Sleeves 3 are fixedly connected to the left and right walls of the main body 20, respectively. A cylinder 1 is fixedly connected to the sleeve 3. A support shaft 8 is fixedly connected to the piston rod end of the cylinder 1. The support shaft 8 can slide inside the sleeve 3. A rotating shaft 10 is rotatably connected to the end of the support shaft 8. An air expansion shaft 11 is fixedly connected to the end of the rotating shaft 10. Therefore, the air expansion shafts 11 on the left and right sides can be pulled and extended by the cylinder 1, thereby leaving space for loading and unloading between the two air expansion shafts 11, which facilitates loading and unloading.

[0022] The air shaft 11 is existing technology. After high-pressure inflation, the key strip 18 on its surface can protrude. The air shaft 11 is provided with the key strip 18 and the air nozzle 17.

[0023] A slitting roller 7 is rotatably connected to the main body 20. Several annular blades 12 are fixedly connected to the slitting roller 7. A support roller 15 is installed at the lower part of the slitting roller 7. A first groove 16 is opened on the support roller 15. The annular blades 12 can be embedded in the first groove 16 to cut the film.

[0024] A pressure regulating device 6 is installed on the main body 20. The pressure regulating device 6 includes a support rod 61. Several second grooves 65 are opened on the support rod 61. A lifting rod 62 is inserted into the second grooves 65. A wheel bracket 64 is welded to the lower part of the lifting rod 62. The wheel bracket 64 is connected to the wheel body 63 through a rotating shaft. Several screw holes 66 are opened on the support rod 61. The screw holes 66 communicate with the second grooves 65. Spring bolts 67 are installed on the screw holes 66. By adjusting the height of the support rod 61, the pressure of the wheel body 63 on the diaphragm can be adjusted. The position of the support rod 61 can be fixed by using the spring bolts 67. The spring can play a role in preventing loosening.

[0025] The lower part of the pressure regulating device 6 is provided with a guide plate 13, and the guide plate 13 is provided with an arc-shaped part 19, which can play a guiding role.

[0026] A switch 2 is installed on the main body 20. A first motor 14 is connected to the end of the slitting roller 7. A second motor 5 is installed on the main body 20. The second motor 5 is driven by a winding roller 4. The winding roller 4 is used to connect a winding device to wind up the slitting film.

[0027] The main body 20 has an opening for the support shaft 8 to pass through, and an arc-shaped reinforcing plate 9 is fixedly connected to the inner wall of the main body 20 to enhance the supporting force.

[0028] Working Principle: First, the coordinated action of cylinder 1 and air shaft 11 ensures the convenience of loading and unloading. Cylinder 1 is fixed on sleeves 3 on both sides of the main body 20, and its piston rod end is connected to support shaft 8. The end of support shaft 8 is connected to air shaft 11 through rotating shaft 10. When loading and unloading are required, cylinder 1 drives support shaft 8 to slide inside sleeve 3, thereby pulling or pushing air shaft 11. Through the extension and retraction of cylinder 1, the distance between the left and right air shafts 11 can be flexibly adjusted to leave enough space for loading and unloading film roll materials. After loading and unloading are completed, cylinder 1 drives air shaft 11 back to the working position and injects high-pressure gas into air shaft 11 through air nozzle 17, causing the surface key strip 18 to protrude, thereby firmly fixing the film roll and preparing for subsequent slitting operations.

[0029] Secondly, the design of the slitting roller 7 and the annular blades 12 ensures the precision of film cutting. The slitting roller 7 is driven to rotate by the first motor 14, and multiple annular blades 12 are mounted on it. A support roller 15 is provided below the slitting roller 7, and a first groove 16 is formed on the surface of the support roller 15. The annular blades 12 are embedded in the first groove 16, which can accurately cut the passing film. This structure not only improves the cutting efficiency, but also avoids the blades from deviating or damaging the film, ensuring that the edges of the cut film are neat and burr-free.

[0030] Furthermore, the introduction of the pressure regulating device 6 effectively solves the problem of film tension control. The pressure regulating device 6 consists of a support rod 61, a lifting rod 62, a wheel bracket 64, and a wheel body 63. By adjusting the height of the support rod 61, the pressure applied to the film by the wheel body 63 can be changed, thereby achieving dynamic tension adjustment. The screw hole 66 on the support rod 61 works in conjunction with the spring bolt 67 to fix the position of the support rod 61 after adjustment. Simultaneously, the spring prevents loosening due to vibration, further improving the stability of equipment operation. The arc-shaped surface 19 on the guide plate 13 guides the film smoothly into the slitting area, reducing deviation or wrinkles.

[0031] Finally, the combination of the second motor 5 and the slitting roller 4 completes the winding of the slit film. The slit film is conveyed to the slitting roller 4 and automatically wound up by the connected winding device. This process is powered by the second motor 5, ensuring that the winding speed matches the slitting speed and avoiding film stretching or loosening problems caused by speed differences.

[0032] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A film slitting device, comprising a main body (20), characterized in that: A sleeve (3) is fixedly connected to the main body (20), a cylinder (1) is fixedly connected to the sleeve (3), a support shaft (8) is fixedly connected to the piston rod end of the cylinder (1), a rotating shaft (10) is rotatably connected to the end of the support shaft (8), an air expansion shaft (11) is fixedly connected to the end of the rotating shaft (10), a slitting roller (7) is rotatably connected to the main body (20), a plurality of annular blades (12) are fixedly connected to the slitting roller (7), a pressure regulating device (6) is installed on the main body (20), a support roller (15) is installed at the lower part of the slitting roller (7), and a first groove (16) is opened on the support roller (15).

2. The film slitting device according to claim 1, characterized in that: The pressure regulating device (6) includes a support rod (61), on which a plurality of second grooves (65) are provided. A lifting rod (62) is inserted into the second groove (65). A wheel bracket (64) is welded to the lower part of the lifting rod (62), and a wheel body (63) is connected to the wheel bracket (64) through a rotating shaft.

3. The film slitting device according to claim 2, characterized in that: The support rod (61) has several screw holes (66) that are connected to the second groove (65), and spring bolts (67) are installed on the screw holes (66).

4. The film slitting device according to claim 1, characterized in that: The pressure regulating device (6) is provided with a guide plate (13) at its lower part, and the guide plate (13) is provided with an arc-shaped surface (19).

5. A film slitting device according to claim 1, characterized in that: A switch (2) is installed on the main body (20), a first motor (14) is connected to the end of the slitting roller (7), a second motor (5) is installed on the main body (20), and the second motor (5) is connected to the slitting roller (4).

6. A film slitting apparatus according to claim 1, characterized in that: The main body (20) has an opening for the support shaft (8) to pass through. The inner wall of the main body (20) is fixedly connected with an arc-shaped reinforcing plate (9). The air shaft (11) is provided with a key strip (18) and an air nozzle (17).

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