Paint film cutting equipment for outer door handle of automobile
By designing a car exterior door handle paint film cutting equipment with a middle die-cutting device and a side die-cutting device, the problems of inconsistent cutting depth and low efficiency of manual cutting were solved, achieving automated cutting and uniform cutting depth, and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN KEODA AUTO PARTS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing technologies for cutting the paint film of automotive exterior door handles suffer from high labor costs, inconsistent cutting depths, and low efficiency, and laser cutting is not suitable for paint films.
A car exterior door handle paint film cutting device was designed, which includes a middle die-cutting device and a side die-cutting device. The first cutter and the second and third cutters are in close contact with the cutting surface under the action of spring force to ensure the consistency of the cutting depth, and the cutting is automated by a moving frame.
It achieves automated cutting, reduces labor costs, ensures uniform cutting depth and product quality, and improves cutting efficiency.
Smart Images

Figure CN224169971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a paint film cutting structure for automotive parts, and more particularly to a paint film cutting device for automotive exterior door handles. Background Technology
[0002] After painting and drying, the paint film on the exterior door handles of automobiles is cut to form decorative stripes to meet specific requirements. However, currently, the decorative stripes on exterior door handles in factories are cut manually. This manual cutting method is inefficient, requiring skilled operators and resulting in high labor costs. Furthermore, inconsistent cutting depths can affect product quality. Additionally, manual cutting is inefficient. Some methods use machine cutting, employing horizontal and vertical movement. For example, patent application number 202020899377.6 discloses a laser cutting device for automotive trim films, which uses a laser cutting head to cut the film. However, this type of laser cutting head has difficulty controlling the cutting width, and the laser can cause the film to re-fuse after breaking, resulting in striations. Therefore, it is not suitable for cutting paint films. Utility Model Content
[0003] The purpose of this utility model is to provide a paint film cutting device for automotive exterior door handles that can solve at least one of the above-mentioned problems.
[0004] According to one aspect of the present invention, a paint film cutting device for automotive exterior door handles is provided, comprising a movable frame, a middle die-cutting device, and a side die-cutting device. The middle die-cutting device and the side die-cutting device are both mounted on the movable frame, with the side die-cutting device located on one side of the middle die-cutting device. The middle die-cutting device includes a first cutter, and the side die-cutting device includes a second cutter and a third cutter, with the tips of the second cutter and the third cutter arranged to both sides.
[0005] The beneficial effects of this utility model are as follows: by providing an intermediate die-cutting device, the paint film on the upper surface of the car exterior door handle can be cut by the first cutter; by providing a side die-cutting device, the paint film on both sides of the car exterior door handle can be cut by the second and third cutters, which helps to ensure the consistency of cutting depth and ensure product quality; at the same time, no manual operation is required, saving labor, reducing the requirements for labor, and reducing labor costs.
[0006] In some embodiments, the intermediate die-cutting device further includes a first fixed plate, a first movable block, and a first blade holder. The first fixed plate is fixed to the movable frame, the first movable block is disposed on the first fixed plate, the first blade holder is fixed to the first movable block, and the first cutter is fixed to the first blade holder. Thus, the first fixed plate and the first movable block facilitate the installation of the first blade holder.
[0007] In some embodiments, the intermediate die-cutting device further includes a first spring and a first connecting screw. A connecting plate is provided on the front side of the first fixed plate, and the connecting plate is located on both sides of the first movable block. Connecting ears are provided on both sides of the first movable block, and the connecting ears are located above the connecting plates on the corresponding sides. One end of the first connecting screw passes through the connecting ear from top to bottom and is fixed to the corresponding connecting plate. The large end of the first connecting screw is located above the connecting ear. The first spring is sleeved on the first connecting screw, with one end of the first spring abutting against the top of the connecting ear and the other end abutting against the large end of the first connecting screw. Thus, by providing the first spring, the first cutter can be kept close to the cutting surface during cutting under the action of the spring force, ensuring the uniformity of the cutting depth. By adjusting the spring force, it is possible to maintain a consistent cutting depth on curved products.
[0008] In some embodiments, the bottom end of the first movable block is provided with a mounting groove, and the first tool holder is fixed in the mounting groove. Thus, by providing a mounting groove, the installation of the first tool holder can be facilitated.
[0009] In some embodiments, the side die-cutting device further includes a second blade holder, which has the same structure as the first blade holder. The first blade holder includes a first pressure plate and a second pressure plate. A first cutter is clamped between the first and second pressure plates of the first blade holder, and a second and a third cutter are clamped between the first and second pressure plates of the second blade holder. Thus, the first and second pressure plates facilitate the fixing of the corresponding cutters.
[0010] In some embodiments, the side die-cutting device further includes a second fixed plate and a second movable block. The second fixed plate is fixed to the movable frame, and the second movable block is located on the front side of the first fixed plate. The second blade holder is fixed to the second movable block, and the second cutter and the third cutter are located on the front and rear sides of the second blade holder. Thus, the second fixed plate and the second movable block facilitate the installation of the second and third cutters and enable the two cutters to cut the corresponding sides of the product.
[0011] In some embodiments, the side die-cutting device further includes a second spring and a second connecting screw. One end of the second connecting screw passes through the second movable block from front to back and is fixed to the second fixed plate. The second spring is sleeved on the second connecting screw, with one end abutting against the second movable block and the other end abutting against the large end of the second connecting screw. Thus, the second spring ensures that the second or third cutter maintains contact with the product's paint film during cutting, guaranteeing consistent cutting depth.
[0012] In some embodiments, the side die-cutting device further includes a copper sleeve fitted between the second movable block and the second connecting screw. Thus, by providing the copper sleeve, the second movable block can be moved relative to the second connecting screw, thereby ensuring that the corresponding cutter is in close contact with the cut surface of the product.
[0013] In some embodiments, a guide rail is provided on the front side of the first fixed plate, the guide rail is vertically arranged, and a slider is provided on the rear side of the first movable block, the slider cooperating with the guide rail. Thus, the cooperation between the guide rail and the slider can further improve the smoothness of the first movable block's movement during cutting, ensuring cutting accuracy. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a paint film cutting device for automotive exterior door handles according to this utility model;
[0015] Figure 2 This is a schematic diagram of the intermediate die-cutting device of a paint film cutting equipment for automotive exterior door handles according to this utility model;
[0016] Figure 3 This is a schematic diagram of the side die-cutting device in a paint film cutting equipment for automotive exterior door handles according to this utility model;
[0017] Figure 4 This is a schematic diagram of the usage state of a paint film cutting device for automotive exterior door handles according to this utility model. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings.
[0019] Reference Figures 1-4 A paint film cutting device for automotive exterior door handles includes a movable frame 1, an intermediate die-cutting device 2, and a side die-cutting device 3. The intermediate die-cutting device 2 and the side die-cutting device 3 are both mounted on the movable frame 1, and the side die-cutting device 3 is located on one side of the intermediate die-cutting device 2. The intermediate die-cutting device 2 includes a first cutter 21, and the side die-cutting device 3 includes a second cutter 31 and a third cutter 32. The tips of the second cutter 31 and the third cutter 32 are arranged to both sides.
[0020] In practical use, the movable frame 1 is connected to external structures such as motors or cylinders to facilitate its left-right and up-down movement. How the external structure moves the movable frame 1 is existing technology and will not be elaborated here. When the car exterior door handle needs to be cut, the machine platform fixed below the movable frame 1 uses the intermediate die-cutting device 2 to cut the paint film directly above the car exterior door handle, creating stripes of the appropriate depth. The second cutter 31 and the third cutter 32 of the side die-cutting device 3 can cut the opposite sides of the car exterior door handle, creating stripes of the appropriate depth.
[0021] The intermediate die-cutting device 2 also includes a first fixed plate 22, a first movable block 23 and a first knife holder 24. The first fixed plate 22 is fixed on the movable frame 1, the first movable block 23 is disposed on the first fixed plate 22, the first knife holder 24 is fixed on the first movable block 23, and the first cutter 21 is fixed on the first knife holder 24.
[0022] The intermediate die-cutting device 2 also includes a first spring 25 and a first connecting screw 26. A connecting plate 27 is provided on the front side of the first fixed plate 22. The connecting plate 27 is located on both sides of the first movable block 23. Connecting ears 231 are provided on both sides of the first movable block 23. The connecting ears 231 are located above the corresponding connecting plate 27. One end of the first connecting screw 26 passes through the connecting ear 231 from top to bottom and is fixed to the corresponding connecting plate 27. The larger end of the first connecting screw 26 is located above the connecting ear 231. The first spring 25 is sleeved on the first connecting screw 26. One end of the first spring 25 abuts against the top of the connecting ear 231, and the other end abuts against the larger end of the first connecting screw 26. The connecting ear 231 is provided with a through hole to facilitate the first connecting screw 26 to pass through the connecting ear 231 and be tightened to the connecting plate 27 by threads.
[0023] When the first cutter 21 needs to cut, the movable frame 1 moves under the drive of an external structure, causing the first cutter 21 to press firmly against the product to be cut. At this time, because the first cutter 21 is pressed down, it pushes the first movable block 23 to move upward. When the first movable block 23 moves upward, the first spring 25 is compressed. Under the action of the rebound force of the first spring 25, it acts on the connecting lug 231 of the first movable block 23, causing the first movable block 23 to be subjected to a downward pressing force, thereby ensuring that the first cutter 21 is always pressed firmly against the corresponding surface of the product during cutting, ensuring smooth cutting and consistent cutting depth.
[0024] The bottom end of the first movable block 23 is provided with a mounting groove 232, and the first tool holder 24 is fixed in the mounting groove 232. The first tool holder 24 is fixed to the side wall of the mounting groove 232 by screws.
[0025] The side die-cutting device 3 also includes a second blade holder 33, the structure of which is the same as that of the first blade holder 24. The first blade holder 24 includes a first pressure plate 241 and a second pressure plate 242. The first cutter 21 is clamped between the first pressure plate 241 and the second pressure plate 242 of the first blade holder 24. The second cutter 31 and the third cutter 32 are clamped between the first pressure plate 241 and the second pressure plate 242 of the second blade holder 33.
[0026] The first pressure plate 241 and the second pressure plate 242 can press and fix the corresponding cutter, making it easier for the cutter to cut the product.
[0027] The side die-cutting device 3 also includes a second fixed plate 34 and a second movable block 35. The second fixed plate 34 is fixed to the movable frame 1, and the second movable block 35 is located on the front side of the first fixed plate 22. The second blade holder 33 is fixed to the second movable block 35, and the second cutter 31 and the third cutter 32 are located on the front and rear sides of the second blade holder 33. The method by which the second blade holder 33 is fixed to the second movable block 35 is the same as the method by which the first blade holder 24 is fixed to the first movable block 23.
[0028] The side die-cutting device 3 also includes a second spring 36 and a second connecting screw 37. One end of the second connecting screw 37 passes through the second movable block 35 from front to back and is fixed on the second fixed plate 34. The second spring 36 is sleeved on the second connecting screw 37. One end of the second spring 36 abuts against the second movable block 35, and the other end abuts against the large end of the second connecting screw 37.
[0029] When the side die-cutting device 3 needs to cut the corresponding side of the product, the second cutter 31 or the third cutter 32 is moved to the corresponding side of the product via the movable frame 1, pressing the cutter against the side of the product. At this time, due to the pressure of the product on the second or third cutter, the second movable block 35 moves relative to the second fixed plate 34, causing the second spring 36 to deform. Therefore, under the elastic force of the second spring 36, the second movable block 35 acts in the opposite direction on the cutter, so that the cutter can fit tightly against the side of the product, ensuring the corresponding cutter cuts the side and ensuring the consistency of the cutting depth.
[0030] The side die-cutting device 3 also includes a copper sleeve 38, which is fitted between the second movable block 35 and the second connecting screw 37. Thus, the copper sleeve 38 allows the second movable block 35 to move more effectively relative to the second fixed plate 34.
[0031] A guide rail 221 is fixed to the front side of the first fixed plate 22 by screws. The guide rail 221 is vertically arranged. A slider 28 is provided on the rear side of the first movable block 23, and the slider 28 cooperates with the guide rail 221. Therefore, when the first cutter needs to cut, the first movable block 23 can move up and down along the guide rail 221 more smoothly.
[0032] By installing different tool combinations on the first tool holder 24 and the second tool holder 33, various tool paths can be customized to meet the cutting needs of different products in actual use.
[0033] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A paint film cutting device for automobile exterior door handles, characterized in that, The device includes a movable frame (1), an intermediate die-cutting device (2), and a side die-cutting device (3). The intermediate die-cutting device (2) and the side die-cutting device (3) are both mounted on the movable frame (1). The side die-cutting device (3) is located on one side of the intermediate die-cutting device (2). The intermediate die-cutting device (2) includes a first cutter (21), and the side die-cutting device (3) includes a second cutter (31) and a third cutter (32). The tips of the second cutter (31) and the third cutter (32) are arranged to both sides.
2. The paint film cutting equipment for automobile exterior door handles according to claim 1, characterized in that, The intermediate die-cutting device (2) further includes a first fixed plate (22), a first movable block (23) and a first knife holder (24). The first fixed plate (22) is fixed on the movable frame (1), the first movable block (23) is disposed on the first fixed plate (22), the first knife holder (24) is fixed on the first movable block (23), and the first cutter (21) is fixed on the first knife holder (24).
3. The paint film cutting equipment for automobile exterior door handles according to claim 2, characterized in that, The intermediate die-cutting device (2) further includes a first spring (25) and a first connecting screw (26). A connecting plate (27) is provided on the front side of the first fixing plate (22). The connecting plate (27) is located on both sides of the first movable block (23). Connecting ears (231) are provided on both sides of the first movable block (23). The connecting ears (231) are located above the corresponding connecting plate (27). One end of the first connecting screw (26) passes through the connecting ear (231) from top to bottom and is fixed to the corresponding connecting plate (27). The large end of the first connecting screw (26) is located above the connecting ear (231). The first spring (25) is sleeved on the first connecting screw (26). One end of the first spring (25) abuts against the top of the connecting ear (231), and the other end abuts against the large end of the first connecting screw (26).
4. The paint film cutting equipment for automotive exterior door handles according to claim 3, characterized in that, The bottom end of the first movable block (23) is provided with a mounting groove (232), and the first tool holder (24) is fixed in the mounting groove (232).
5. The paint film cutting equipment for automotive exterior door handles according to claim 4, characterized in that, The side die-cutting device (3) further includes a second blade holder (33), the structure of which is the same as that of the first blade holder (24). The first blade holder (24) includes a first pressure plate (241) and a second pressure plate (242). The first cutter (21) is clamped between the first pressure plate (241) and the second pressure plate (242) of the first blade holder (24). The second cutter (31) and the third cutter (32) are clamped between the first pressure plate (241) and the second pressure plate (242) of the second blade holder (33).
6. The paint film cutting equipment for automobile exterior door handles according to claim 5, characterized in that, The side die-cutting device (3) further includes a second fixed plate (34) and a second movable block (35). The second fixed plate (34) is fixed on the movable frame (1). The second movable block (35) is located on the front side of the first fixed plate (22). The second knife holder (33) is fixed on the second movable block (35). The second cutter (31) and the third cutter (32) are located on the front and rear sides of the second knife holder (33).
7. The paint film cutting equipment for automobile exterior door handles according to claim 6, characterized in that, The side die-cutting device (3) further includes a second spring (36) and a second connecting screw (37). One end of the second connecting screw (37) passes through the second movable block (35) from front to back and is fixed on the second fixed plate (34). The second spring (36) is sleeved on the second connecting screw (37). One end of the second spring (36) abuts against the second movable block (35), and the other end abuts against the large end of the second connecting screw (37).
8. The paint film cutting equipment for automobile exterior door handles according to claim 7, characterized in that, The side die-cutting device (3) also includes a copper sleeve (38), which is fitted between the second movable block (35) and the second connecting screw (37).
9. The paint film cutting equipment for automobile exterior door handles according to claim 3, characterized in that, The first fixed plate (22) has a guide rail (221) on its front side, the guide rail (221) is vertically arranged, and the first movable block (23) has a slider (28) on its rear side, the slider (28) cooperates with the guide rail (221).
Citation Information
Patent Citations
Laser cutting structure of automobile ornament adhesive film
CN212526521U