Positioning and cutting device for car paint protection film

The combined design of the cutting table and the clamping mechanism solves the problem of inaccurate positioning and cutting of automotive paint protection film, achieving precise cutting and flatness, and improving cutting efficiency and quality.

CN224544766UActive Publication Date: 2026-07-24SHENGFENG (HUBEI) NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENGFENG (HUBEI) NEW MATERIAL TECH CO LTD
Filing Date
2025-09-02
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing positioning and cutting technologies for automotive paint protection films suffer from inaccurate positioning, which easily leads to cutting errors, resulting in problems such as bulging, rough edges, and reduced quality of the protective film.

Method used

The design incorporates a combination of a cutting table, slide bar, support frame, sliding block, cutter, and clamping mechanism. Precise positioning and fixation are achieved through sliding connection and air pump-driven clamping block, ensuring that the protective film does not bulge and remains flat during the cutting process.

Benefits of technology

It achieves precise cutting of automotive paint protection film, avoids cutting errors, ensures the flatness and quality of the cut, and improves cutting efficiency and effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to automobile paint protection film positioning cutting technical field discloses positioning cutting equipment of automobile paint protection film, including cutting table, the top left and right side of cutting table is seted up with the sliding slot, the inner wall fixedly connected with support frame of sliding slot, the outer wall top of support frame is seted up with monorail groove, the inner wall fixedly connected with connecting column of monorail groove, the outer wall sliding connection has hollow board of connecting column, the outer wall left and right side fixedly connected with pulley of fixed link, the bottom fixedly connected with cutting knife of fixed link, the bottom front side of cutting table is provided with the compacting mechanism, and the compacting mechanism is used for compacting car paint protection film. In the utility model, the left and right sides of cutting table all have slide bar, and support frame slides on the slide bar, and there is fixed link on the outer wall of connecting column, when sliding block slides, cutting knife and pulley also move together, realize accurate positioning cutting to car paint protection film, and do not have bulge, and cut smoothly.
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Description

Technical Field

[0001] This utility model relates to the field of positioning and cutting technology of automotive paint protection film, and in particular to positioning and cutting equipment for automotive paint protection film. Background Technology

[0002] The positioning and cutting technology of automotive paint protection film is the core technology to ensure the accuracy and efficiency of film application. It achieves precise operation through a mechanical structure. Its positioning system relies on the inherent characteristics of the vehicle body, using feature anchor point positioning claws to engage with door gaps and fix the hood edge as a reference. Combined with curved surface following positioning wheels, it mechanically links the cutting trajectory, ensuring minimal positioning error on curved surfaces. Modular wheelbase positioning rulers and symmetrical mirror linkage mechanisms quickly adapt to different vehicle sizes without complex parameter settings. The cutting process uses multiple types of specialized blades: round-headed blades adapt to curved surface cutting to prevent curling, pointed blades precisely handle corner gaps, and flat-blade blades ensure continuous long straight-line cutting. Auxiliary components such as comb-tooth flattening rollers eliminate film wrinkles, tapered guide wheels prevent film deviation, and magnetic waste scrapers clean debris in real time. The overall technology automates the entire process from vehicle body feature recognition to precise cutting through positioning, cutting, and auxiliary mechanical linkage. Operation requires only three steps: engagement, adjustment, and cutting, offering both precision and ease of use.

[0003] During daily driving, scratches and wear will appear on the surface of a car, causing minor scratches on the paint. It is necessary to apply a car paint protection film to protect the car. The car paint protection film needs to be precisely cut. Existing precision cutting technology is prone to inaccurate cutting positioning, errors in the cutting head's trajectory, bulging of the protective film, uneven cutting, and burrs during cutting, ultimately resulting in defects in the protective film and a decrease in quality. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a positioning and cutting device for automotive paint protection film, aiming to improve the problem of inaccurate positioning and cutting of automotive paint protection film in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a positioning and cutting device for automotive paint protection film, comprising a cutting table, a plurality of fixed columns fixedly connected to the bottom of the cutting table, sliding grooves opened on the left and right sides of the top of the cutting table, a sliding rod fixedly connected to the inner wall of the sliding groove, a support frame slidably connected to the outer wall of the sliding rod, a single track groove opened on the top of the outer wall of the support frame, a connecting column fixedly connected to the inner wall of the single track groove, a sliding block slidably connected to the outer wall of the connecting column, a hollow plate fixedly connected to the bottom of the outer wall of the sliding block, a fixing hole opened on the inner wall of the hollow plate, a fixing rod slidably connected to the inner wall of the fixing hole, a connecting plate fixedly connected to the left and right sides of the outer wall of the fixing rod, a cutter fixedly connected to the bottom of the fixing rod, a pulley fixedly connected to the bottom of the outer wall of the connecting plate, and a pressing mechanism provided on the front bottom of the cutting table, the pressing mechanism being used to press the automotive paint protection film.

[0006] As a further description of the above technical solution: The clamping mechanism includes a clamping block, the bottom of which is slidably connected to the top of the cutting table. A clamping frame is fixedly connected to the top of the clamping block. A groove is provided on the inner wall of the clamping frame. A support base is provided at the bottom of the cutting table. A fixing block is fixedly connected to the top of the support base. A groove is rotatably connected to the outer wall of the fixing block. A rotating plate is rotatably connected to the front side of the inner wall of the groove. A rotating block is rotatably connected to the bottom of the outer wall of the rotating plate. An air pump is fixedly connected to the bottom of the rotating block.

[0007] As a further description of the above technical solution: An anti-slip pad is fixedly connected to the bottom of the fixed column, and a connecting rod is fixedly connected to the outer wall of the fixed column.

[0008] As a further description of the above technical solution: A controller is fixedly connected to the front side of the outer wall of the support base, and a soft pad is fixedly connected to the bottom of the clamping block.

[0009] As a further description of the above technical solution: A nameplate is fixedly connected to the right side of the outer wall of the support frame, and a screw is threaded onto the inner wall of the nameplate.

[0010] As a further description of the above technical solution: A threaded hole is provided on the right side of the outer wall of the hollow plate, and a stud is threaded onto the inner wall of the threaded hole.

[0011] As a further description of the above technical solution: The outer wall of the slide rod is slidably connected to a protective sleeve, and the outer wall of the protective sleeve is fixedly connected to the inner wall of the support frame.

[0012] As a further description of the above technical solution: The bottom of the outer wall of the pulley is slidably connected to the top of the outer wall of the cutting table, and the bottom of the outer wall of the cutter is slidably connected to the top of the outer wall of the cutting table.

[0013] This utility model has the following beneficial effects: 1. In this utility model, there is a fixed column on the cutting table, and there are sliding rods on the left and right sides of the cutting table. The support frame slides back and forth on the sliding rods. There is a connecting column on the top of the inner wall of the support frame, and a sliding block on the outer wall of the connecting column. It can slide left and right. There is a hollow plate and a fixed rod at the bottom of the sliding block. When the sliding block slides, it will move the hollow plate and the fixed rod together left and right. At the same time, the cutter and the pulley will also move together. Cutting can be done at any position, achieving precise positioning and cutting of the car paint protection film. When the cutter cuts, the pulley will hold the car paint protection film down, preventing bulging and ensuring smooth cutting.

[0014] 2. In this utility model, the top of the support base has a fixing block to fix the entire pressing frame. There is a pressing block on the rear side of the pressing frame. The inner wall of the pressing frame has a groove. There is a rotating plate on the inner wall of the groove. The rotating plate and the rotating block can rotate. The rotating block is connected to an air pump. When the air pump is started, the pressing frame can rotate around the fixing block, so that the pressing block can move up and down. When it moves down, it can press the car paint protection film and fix the car paint protection film to prevent the car paint protection film from moving randomly during cutting. Attached Figure Description

[0015] Figure 1 This is a front perspective view of the positioning and cutting device for automotive paint protection film proposed in this utility model; Figure 2 This is a side view of the positioning and cutting device for automotive paint protection film proposed in this utility model. Figure 3 This is a partial structural diagram of the cutter of the positioning and cutting device for automotive paint protection film proposed in this utility model. Figure 4 This is a partial structural breakdown of the stud in the positioning and cutting device for automotive paint protection film proposed in this utility model. Figure 5 This is a partial structural exploded view of the fixing hole of the positioning and cutting device for the automotive paint protection film proposed in this utility model; Figure 6 This is a partial structural diagram of the air pump in the positioning and cutting device for automotive paint protection film proposed in this utility model. Figure 7 This is a partial structural diagram of the rotating plate of the positioning and cutting device for automotive paint protection film proposed in this utility model.

[0016] Legend: 1. Cutting table; 2. Pressing mechanism; 201. Support base; 202. Fixing block; 203. Pressing frame; 204. Groove; 205. Pressing block; 206. Rotating plate; 207. Rotating block; 208. Air pump; 3. Slide rod; 4. Support frame; 5. Single track groove; 6. Connecting column; 7. Sliding block; 8. Hollow plate; 9. Fixing rod; 10. Connecting plate; 11. Cutting knife; 12. Pulley; 13. Fixing column; 14. Connecting rod; 15. Anti-slip pad; 16. Controller; 17. Protective cover; 18. Nameplate; 19. Screw; 20. Stud; 21. Threaded hole; 22. Soft pad; 23. Slide groove; 24. Fixing hole. Detailed Implementation

[0017] 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.

[0018] Please see the appendix Figure 2 , attached Figure 3 , attached Figure 5 This utility model provides an embodiment of a positioning and cutting device for automotive paint protection film, including a cutting table 1. Multiple fixing columns 13 are fixedly connected to the bottom of the cutting table 1. Slide grooves 23 are provided on the left and right sides of the top of the cutting table 1. A sliding rod 3 is fixedly connected to the inner wall of the slide groove 23. A support frame 4 is slidably connected to the outer wall of the sliding rod 3. A single track groove 5 is provided on the top of the outer wall of the support frame 4. A connecting column 6 is fixedly connected to the inner wall of the single track groove 5. A sliding block 7 is slidably connected to the outer wall of the connecting column 6. A hollow plate 8 is fixedly connected to the bottom of the outer wall of the sliding block 7. A fixing hole 24 is provided on the inner wall of the hollow plate 8. A fixing rod 9 is slidably connected to the inner wall of the fixing hole 24. Connecting plates 10 are fixedly connected to the left and right sides of the outer wall of the fixing rod 9. A cutter 11 is fixedly connected to the bottom of the fixing rod 9. A pulley 12 is fixedly connected to the bottom of the connecting plate 10. A pressing mechanism 2 is provided on the front bottom of the cutting table 1. The pressing mechanism 2 is used to press the automotive paint protection film. Specifically, the bottom of the cutting table 1 has a fixed column 13 to fix the cutting table 1, the support frame 4 can slide on the slide rod 3, the outer wall of the support frame 4 has a single track groove 5, the inner wall of the single track groove 5 has a connecting column 6 and a sliding block 7 that can slide on the connecting column 6, the inner wall of the hollow plate 8 has a fixing hole 24 to facilitate the up and down movement of the fixing rod 9, the outer wall of the fixing rod 9 has a connecting plate 10 on the left and right sides, the bottom of the fixing rod 9 has a cutter 11, the outer wall of the connecting plate 10 has a pulley 12, when the cutter 11 cuts the car paint protection film, it can flatten the car paint protection film for easy cutting.

[0019] Please see the appendix Figure 1 , attached Figure 6 and attached Figure 7 The clamping mechanism 2 includes a clamping block 205, the bottom of which is slidably connected to the top of the cutting table 1. A clamping frame 203 is fixedly connected to the top of the clamping block 205. A groove 204 is provided on the inner wall of the clamping frame 203. A support base 201 is provided at the bottom of the cutting table 1. A fixing block 202 is fixedly connected to the top of the support base 201. A groove 204 is rotatably connected to the outer wall of the fixing block 202. A rotating plate 206 is rotatably connected to the front side of the inner wall of the groove 204. A rotating block 207 is rotatably connected to the bottom of the outer wall of the rotating plate 206. An air pump 208 is fixedly connected to the bottom of the rotating block 207. A controller 16 is fixedly connected to the front side of the outer wall of the support base 201. A soft pad 22 is fixedly connected to the bottom of the clamping block 205. Specifically, the top of the clamping block 205 has a clamping frame 203, the inner wall of the clamping frame 203 has a groove 204, the fixing block 202 can rotate in the groove 204, the support base 201 is used to support the clamping frame 203 and the air pump 208, the inner wall of the groove 204 has a rotating plate 206, the outer wall of the rotating plate 206 has a rotating block 207, which can cooperate with each other when the air pump 208 is started, the outer wall of the support base 201 has a controller 16 to control the operation of the air pump 208, and the bottom of the clamping block 205 has a soft pad 22 to prevent the paint protection film from being damaged when pressed.

[0020] Please see the appendix Figure 1 , attached Figure 2 and attached Figure 4 An anti-slip pad 15 is fixedly connected to the bottom of the fixed column 13, and a connecting rod 14 is fixedly connected to the outer wall of the fixed column 13. A nameplate 18 is fixedly connected to the right side of the outer wall of the support frame 4, and a screw 19 is threadedly connected to the inner wall of the nameplate 18. A threaded hole 21 is opened on the right side of the outer wall of the hollow plate 8, and a stud 20 is threadedly connected to the inner wall of the threaded hole 21. Specifically, the bottom of the fixed column 13 has an anti-slip pad 15, which can play an anti-slip role. The outer wall of the fixed column 13 has a connecting rod 14, which plays a stabilizing role. The outer wall of the support frame 4 has a nameplate 18, which can display information about the cutting equipment. The inner wall of the nameplate 18 has screws 19 to fix the nameplate 18. The outer wall of the hollow plate 8 has threaded holes 21 and studs 20, which can adjust the lifting and lowering of the fixed rod 9.

[0021] Please see the appendix Figure 1 - Appendix Figure 3 The outer wall of the slide bar 3 is slidably connected to a protective sleeve 17, and the outer wall of the protective sleeve 17 is fixedly connected to the inner wall of the support frame 4. The bottom of the outer wall of the pulley 12 is slidably connected to the top of the outer wall of the cutting table 1, and the bottom of the outer wall of the cutter 11 is slidably connected to the top of the outer wall of the cutting table 1. Specifically, the outer wall of the slide bar 3 has a protective sleeve 17, which serves to protect the slide bar 3. The protective sleeve 17 is fixedly connected to the support frame 4, and the pulley 12 can slide on the outer wall of the cutting table 1.

[0022] Working principle: The bottom of the cutting table 1 has a fixed column 13, and there are sliding rods 3 on the left and right sides of the cutting table 1. The support frame 4 can slide back and forth on the sliding rods 3. There is a connecting column 6 on the top of the inner wall of the support frame 4, and a sliding block 7 on the outer wall of the connecting column 6, which can slide left and right. The bottom of the sliding block 7 has a hollow plate 8 and a fixed rod 9. When the sliding block 7 slides, it will move the hollow plate 8 and the fixed rod 9 together to move left and right. At the same time, the cutter 11 and the pulley 12 will also move together to achieve positioning and cutting. When the cutter 11 is cutting, the pulley 12 will hold the protective film down to prevent bulging and cut smoothly. The top of the support base 201 has a fixing block 202 that fixes the entire clamping frame 203. There is a clamping block 205 on the rear side of the clamping frame 203. The inner wall of the clamping frame 203 has a groove 204. There is a rotating plate 206 on the inner wall of the groove 204. The rotating plate 206 and the rotating block 207 can rotate. The rotating block 207 is connected to the air pump 208. When the air pump 208 is started, the clamping frame 203 can rotate around the fixing block 202, so that the clamping block 205 can move up and down. When it moves down, it can press the protective film to prevent it from loosening.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning and cutting device for automotive paint protection film, comprising a cutting table (1), characterized in that: The bottom of the cutting table (1) is fixedly connected to multiple fixed columns (13). The top left and right sides of the cutting table (1) are provided with sliding grooves (23). The inner wall of the sliding groove (23) is fixedly connected to a sliding rod (3). The outer wall of the sliding rod (3) is slidably connected to a support frame (4). The top of the outer wall of the support frame (4) is provided with a single rail groove (5). The inner wall of the single rail groove (5) is fixedly connected to a connecting column (6). The outer wall of the connecting column (6) is slidably connected to a sliding block (7). The bottom of the outer wall of the sliding block (7) is... A hollow plate (8) is fixedly connected. A fixing hole (24) is provided on the inner wall of the hollow plate (8). A fixing rod (9) is slidably connected to the inner wall of the fixing hole (24). A connecting plate (10) is fixedly connected to the left and right sides of the outer wall of the fixing rod (9). A cutter (11) is fixedly connected to the bottom of the fixing rod (9). A pulley (12) is fixedly connected to the bottom bottom of the connecting plate (10). A pressing mechanism (2) is provided on the front bottom of the cutting table (1). The pressing mechanism (2) is used to press the car paint protection film.

2. The positioning and cutting equipment for automotive paint protection film according to claim 1, characterized in that: The pressing mechanism (2) includes a pressing block (205), the bottom of which is slidably connected to the top of the cutting table (1), a pressing frame (203) is fixedly connected to the top of the pressing block (205), a groove (204) is provided on the inner wall of the pressing frame (203), a support seat (201) is provided at the bottom of the cutting table (1), a fixing block (202) is fixedly connected to the top of the support seat (201), a groove (204) is rotatably connected to the outer wall of the fixing block (202), a rotating plate (206) is rotatably connected to the front side of the inner wall of the groove (204), a rotating block (207) is rotatably connected to the bottom of the outer wall of the rotating plate (206), and an air pump (208) is fixedly connected to the bottom of the rotating block (207).

3. The positioning and cutting equipment for automotive paint protection film according to claim 1, characterized in that: The bottom of the fixed column (13) is fixedly connected to an anti-slip pad (15), and the outer wall of the fixed column (13) is fixedly connected to a connecting rod (14).

4. The positioning and cutting equipment for automotive paint protection film according to claim 2, characterized in that: A controller (16) is fixedly connected to the front side of the outer wall of the support base (201), and a soft pad (22) is fixedly connected to the bottom of the clamping block (205).

5. The positioning and cutting equipment for automotive paint protection film according to claim 1, characterized in that: A nameplate (18) is fixedly connected to the right side of the outer wall of the support frame (4), and a screw (19) is threadedly connected to the inner wall of the nameplate (18).

6. The positioning and cutting equipment for automotive paint protection film according to claim 1, characterized in that: A threaded hole (21) is provided on the right side of the outer wall of the hollow plate (8), and a stud (20) is threadedly connected to the inner wall of the threaded hole (21).

7. The positioning and cutting equipment for automotive paint protection film according to claim 1, characterized in that: The outer wall of the slide rod (3) is slidably connected to a protective sleeve (17), and the outer wall of the protective sleeve (17) is fixedly connected to the inner wall of the support frame (4).

8. The positioning and cutting equipment for automotive paint protection film according to claim 1, characterized in that: The bottom of the outer wall of the pulley (12) is slidably connected to the top of the outer wall of the cutting table (1), and the bottom of the outer wall of the cutter (11) is slidably connected to the top of the outer wall of the cutting table (1).