A membrane scratching mechanism with positioning function

Abstract

The utility model relates to the technical field of film cutting processing discloses a kind of film marking mechanism with positioning function including cutting film structure and push film structure, and push film structure includes push film cylinder, push film support, push film longitudinal slide rail, sliding gear seat, synchronous shift rod component and push film rod, push film rod is mutually parallel with cutting film structure, and the both ends of push film rod are rotatably connected with sliding gear seat, and the both ends of push film rod are rotatably connected with synchronous shift rod component, and sliding gear seat is connected with the telescopic rod of push film cylinder, and sliding gear seat is slidably connected with push film longitudinal slide rail, and synchronous shift rod component, push film longitudinal slide rail and push film cylinder are all installed in push film support.The utility model can be actively tensioned film, to realize the positioning of film, and cutting film component of cutting film structure is parallel with push film rod, solves the problem of cutout inclination;Different thickness / elasticity film can be adjusted the moving distance of push film structure, to adjust the pressure of push film structure to film.

Description

Technical Field

[0001] This utility model relates to the technical field of thin film cutting and processing, and in particular to a film cutting mechanism with positioning function. Background Technology

[0002] Fixed cutter + moving film: The film is moved horizontally by a conveyor roller and cut by a fixed cutter. However, uneven tension or slippage can easily occur during film movement, leading to skewed cuts or rough edges. Mechanical clamping + manual cutter: The film is temporarily fixed by clamps, and the cutter is operated manually. This method relies on the operator's experience, and uneven clamping force distribution can easily cause local deformation or vibration displacement. Existing technologies have the following significant drawbacks:

[0003] Insufficient film tension: Traditional positioning rollers only serve a conveying function and cannot actively apply pressure. When the film is loose, the cutter is prone to scratching or incomplete cutting.

[0004] Positioning and cutting are separated: the clamping mechanism and the cutter operate independently. The film may spring back at the moment of cutting, resulting in an uneven cut.

[0005] Poor adaptability: It is difficult to be compatible with films of different thicknesses and elasticities. Thick films require greater pressure, and existing mechanisms lack dynamic adjustment capabilities. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a film-cutting mechanism with positioning function.

[0007] The objective of this invention is achieved through the following technical solution: A film-cutting mechanism with positioning function includes a film-cutting structure and a film-pushing structure. The film-pushing structure includes a film-pushing cylinder, a film-pushing bracket, a film-pushing longitudinal slide rail, a sliding gear seat, a synchronous shifting rod component, and a film-pushing rod. The film-pushing rod is parallel to the film-cutting structure. Both ends of the film-pushing rod are rotatably connected to the sliding gear seat and the synchronous shifting rod component. The sliding gear seat is connected to the telescopic rod of the film-pushing cylinder and slidably connected to the film-pushing longitudinal slide rail. The synchronous shifting rod component, the film-pushing longitudinal slide rail, and the film-pushing cylinder are all mounted on the film-pushing bracket. This mechanism uses the film-pushing structure to tighten the film, thereby allowing the film-cutting structure to cut precisely.

[0008] A better alternative is that the film cutting structure includes a film cutting support, a film marking linear module, and a film cutting component. The film marking linear module is mounted on the film cutting support, the film pushing rod is parallel to the film marking linear module, and the film cutting component is connected to the moving end of the film marking linear module. This film cutting structure can complete full-width film cutting.

[0009] A better option is that the film cutting component includes a film cutting cylinder, a film cutting knife guide seat, and a transverse film cutting knife connected in sequence. The film cutting cylinder is connected to the moving end of the film cutting linear module, and the transverse film cutting knife is matched with the film pushing rod.

[0010] A better option is that the film cutting support includes a support rod and a fixed base, the film cutting linear module is fixedly connected to the support rod, the film cutting linear module is axially aligned with the support rod, and the fixed base is connected to both ends of the support rod.

[0011] A better alternative is that the film-pushing rod includes a film-pushing shaft and a film-pushing roller. The film-pushing shaft passes through the film-pushing roller and extends outward. Both ends of the film-pushing shaft are rotatably connected to the sliding gear seat, and both ends of the film-pushing shaft are connected to the synchronization component. The film-pushing rod can reduce the friction of the film and prevent wrinkles from forming during the pushing process.

[0012] A preferred embodiment includes a synchronous shifting rod component comprising a transmission gear and a fixed rack. The transmission gear is connected to both ends of the pusher rod, and the fixed rack is fixedly mounted to the pusher support. The transmission gear and fixed rack enable the two ends of the pusher rod to move synchronously when moving in the second direction.

[0013] A better option is that the film-pushing support includes a base plate, a rack seat, and a cylinder seat connected in sequence, wherein the fixed rack and the longitudinal slide rail for film pushing are both connected to the rack seat, and the film-pushing cylinder is connected to the cylinder seat.

[0014] This utility model has the following advantages and beneficial effects compared to the prior art:

[0015] This utility model discloses a film-cutting mechanism with positioning function, which can actively tension the film through a film-pushing structure and a film-cutting structure, thereby achieving film positioning. The film-cutting component of the film-cutting structure is parallel to the film-pushing rod, solving the problem of slanted cuts. The moving distance of the film-pushing structure can be adjusted according to the film thickness / elasticity, thereby adjusting the pressure of the film-pushing structure on the film. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a film-cutting mechanism with positioning function according to this utility model;

[0017] Figure 2 yes Figure 1 A magnified view of a portion at point A;

[0018] Figure 3 yes Figure 1 A magnified view of the area at point B;

[0019] Figure 4This is an assembly diagram of a film-cutting cylinder, a film-cutting knife guide seat, and a transverse film-cutting knife of a film-cutting mechanism with positioning function according to this utility model.

[0020] The components in the attached diagram are labeled as follows: 1-Cutting structure; 11-Cutting bracket; 111-Fixed seat; 112-Support rod; 12-Cutting linear module; 13-Cutting cylinder; 14-Cutting knife guide seat; 15-Transverse cutting knife; 2-Pushing structure; 21-Pushing cylinder; 22-Pushing bracket; 221-Base plate; 222-Rack seat; 223-Cylinder seat; 23-Pushing longitudinal slide rail; 24-Sliding gear seat; 25-Fixed rack; 26-Pushing rod; 261-Pushing shaft; 262-Pushing roller; 27-Transmission gear. Detailed Implementation

[0021] The utility model objective of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation of this utility model is not limited to the following embodiments.

[0022] In this embodiment, in the first direction a, the arrow direction is to the right, and the opposite direction of the arrow is to the left; in the second direction b, the arrow direction is backward, and the opposite direction of the arrow is forward.

[0023] like Figure 1 As shown, the film-cutting mechanism includes a film-cutting structure 1 and a film-pushing structure 2, which are located on opposite sides of the film. The film-cutting structure 1 is used to cut the film in a first direction a. The film-pushing structure 2 is used to push the film to assist in cutting and maintain tension.

[0024] like Figure 1 and 4 As shown, the film cutting structure 1 includes a film cutting support 11, a film cutting linear module 12, a film cutting cylinder 13, a film cutting blade guide seat 14, and a transverse film cutting blade 15. The film cutting support 11 includes two fixed seats 111 and a support rod 112. The film cutting linear module 12 is fixedly installed on the top of the support rod 112 of the film cutting support 11, and both ends of the support rod 112 are connected to the two fixed seats respectively. The film cutting cylinder 13 is installed on the transverse moving end of the film cutting linear module 12, and the axis of the film cutting linear module 12 is perpendicular to the axis of the film cutting cylinder 13. The transverse film cutting blade 15 is connected to the telescopic rod of the film cutting cylinder 13 and is located behind the film.

[0025] The film-cutting support 11 serves as a structural base, providing rigid support for other components. The film-cutting linear module 12 drives the transverse film-cutting blade 15 to move in the first direction a, controlling the cutting path. The film-cutting cylinder 13 drives the transverse film-cutting blade 15 to move in the second direction b, thereby moving the transverse film-cutting blade 15 to the direct left of the film. The transverse film-cutting blade 15 is used to cut the film.

[0026] like Figures 1-3 As shown, the film-pushing structure 2 includes two film-pushing cylinders 21, two film-pushing supports 22, two longitudinal film-pushing slide rails 23, two sliding gear seats 24, two fixed racks 25, and one film-pushing rod 26. Each film-pushing support 22 includes a base plate 221, a rack seat 222, and a cylinder seat 223. The film-pushing rod 26 includes a film-pushing shaft 261 and a film-pushing roller 262. The two longitudinal film-pushing slide rails 23 are respectively installed inside the rack seats 222 of the two film-pushing supports 22. The two fixed racks 25 are respectively installed inside the rack seats 222 of the two film-pushing supports 22, and are located between the rack seats 222 and the base plate 221. The two sliding gear seats 24 are slidably connected to the two longitudinal film-pushing slide rails 23. The two film-pushing cylinders 21 are respectively installed at the front end of the rack seats 222 through the cylinder seats 223, and the telescopic rods of the two film-pushing cylinders 21 are respectively fixedly connected to the two sliding gear seats 24. The two ends of the film-pushing rod 26's film-pushing shaft 261 are rotatably connected to two sliding gear seats 24, respectively. The film-pushing shaft 261 passes through the film-pushing roller 262 and extends outward, rotating relative to the film-pushing roller 262. Both ends of the film-pushing rod 26 are equipped with transmission gears 27, which mesh with two fixed racks 25. The film-pushing rod 26 is located at the front of the film.

[0027] The film-pushing cylinder 21 provides power for the film-pushing rod 26 to move in the second direction b, driving the film-pushing rod 26 to press against the film. The film-pushing bracket 22 supports the various components. The longitudinal slide rail 23 provides guidance in the second direction b for the sliding gear seat 24, limiting the direction of movement. The sliding gear seat 24 is used to mount the two ends of the film-pushing rod 26. The fixed rack 25 serves as a reference track for the movement of the transmission gear 27, ensuring the synchronicity of the two ends of the film-pushing rod 26, thereby allowing the film-pushing rod 26 to move parallel to the film-cutting linear module 12. The film-pushing rod 26 is used to directly contact the surface of the film, applying a rearward parallel thrust in the second direction b to bring it closer to the transverse cutting blade 15.

[0028] The working process of the film dicing mechanism is as follows: When the film needs to be cut, the film-pushing cylinder 21 receives a command and extends a telescopic rod, pushing the sliding gear seat 24 to move along the longitudinal slide rail 23 towards the film (i.e., backward in the second direction b). The transmission gears at both ends of the film-pushing rod 26 mesh with the fixed rack 25, forcing synchronous movement on both sides, ensuring that the film-pushing rod 26 presses parallel to the surface of the film, eliminating film skewing caused by unilateral thrust. After the film-pushing rod 26 contacts the film, it applies continuous backward pressure in the second direction b, making the film taut and close to the transverse dicing blade 15, establishing the tension required for cutting. The dicing cylinder 13 drives the transverse dicing blade 15 to move forward along the second direction b, adjusting it to the left of the side edge of the film, ensuring that the cutting starting point is aligned. The film dicing linear module 12 starts, driving the transverse dicing blade 15 to move at a constant speed along the first direction a (i.e., parallel to the width direction of the film). The taut film is cut across its full width under the action of the sharp edge of the transverse dicing blade 15. The film-pushing cylinder 21 retracts its telescopic rod, pulling the film-pushing rod 26 away from the surface of the film and relieving tension. The film-cutting linear module 12 moves in the opposite direction, causing the transverse film-cutting knife 15 to return to its initial position; at the same time, the film-cutting cylinder 13 retracts the transverse film-cutting knife 15 to avoid interfering with the film transport.

[0029] The above-described specific embodiments are preferred embodiments of this utility model and are not intended to limit this utility model. Any other changes or equivalent substitutions made without departing from the technical solution of this utility model are included within the protection scope of this utility model.

Claims

1. A film-cutting mechanism with positioning function, characterized in that: The device includes a film cutting structure (1) and a film pushing structure (2). The film pushing structure (2) includes a film pushing cylinder (21), a film pushing bracket (22), a film pushing longitudinal slide rail (23), a sliding gear seat (24), a synchronous shift rod component, and a film pushing rod (26). The film pushing rod (26) is parallel to the film cutting structure (1). Both ends of the film pushing rod (26) are rotatably connected to the sliding gear seat (24). Both ends of the film pushing rod (26) are connected to the synchronous shift rod component. The sliding gear seat (24) is connected to the telescopic rod of the film pushing cylinder (21). The sliding gear seat (24) is slidably connected to the film pushing longitudinal slide rail (23). The synchronous shift rod component, the film pushing longitudinal slide rail (23), and the film pushing cylinder (21) are all mounted on the film pushing bracket (22).

2. The film-cutting mechanism with positioning function according to claim 1, characterized in that: The film cutting structure (1) includes a film cutting bracket (11), a film cutting linear module (12), and a film cutting component. The film cutting linear module (12) is installed on the film cutting bracket (11), the film pushing rod (26) is parallel to the film cutting linear module (12), and the film cutting component is connected to the moving end of the film cutting linear module (12).

3. The film-cutting mechanism with positioning function according to claim 2, characterized in that: The film cutting component includes a film cutting cylinder (13), a film cutting knife guide seat (14), and a transverse film cutting knife (15) connected in sequence. The film cutting cylinder (13) is connected to the moving end of the film cutting linear module (12), and the transverse film cutting knife (15) is matched with the film pushing rod (26).

4. A film-cutting mechanism with positioning function according to claim 2, characterized in that: The film cutting support (11) includes a support rod (112) and a fixed seat (111). The film cutting linear module (12) is fixedly connected to the support rod (112). The film cutting linear module (12) and the support rod (112) are axially aligned. The fixed seat (111) is connected to both ends of the support rod (112).

5. A film-cutting mechanism with positioning function according to claim 1, characterized in that: The film pushing rod (26) includes a film pushing shaft (261) and a film pushing roller (262). The film pushing shaft (261) passes through the film pushing roller (262) and extends outward. Both ends of the film pushing shaft (261) are rotatably connected to the sliding gear seat (24) and both ends of the film pushing shaft (261) are connected to the synchronous shift rod component.

6. A film-cutting mechanism with positioning function according to claim 1, characterized in that: The synchronous shift rod component includes a transmission gear (27) and a fixed rack (25). The transmission gear (27) is connected to both ends of the pusher rod (26) and meshes with the fixed rack (25). The fixed rack (25) is fixedly installed on the pusher bracket (22).

7. A film-cutting mechanism with positioning function according to claim 6, characterized in that: The film pushing bracket (22) includes a base plate (221), a rack seat (222) and a cylinder seat (223) connected in sequence. The fixed rack (25) and the longitudinal slide rail (23) for film pushing are both connected to the rack seat (222), and the film pushing cylinder (21) is connected to the cylinder seat (223).

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