Automatic cleaning device for laser-engraved characters
By designing an automatic cleaning device for laser-engraved characters, the coordinated movement of vertical and horizontal drive modules is used to achieve automated cleaning of laser-engraved characters, solving the problems of whitening of laser-engraved characters and low efficiency of manual cleaning, thus improving cleaning efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TARRY ELECTRONICS
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-17
Smart Images

Figure CN224507759U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile phone back cover production technology, and in particular to an automatic cleaning device for laser-engraved characters. Background Technology
[0002] In the production of mobile phone back covers, laser engraving is often performed on the PU leather material to enhance product recognition and aesthetics. During this process, a high-energy-density laser beam is used to act on the material surface, causing the material to vaporize instantly or change color, thus achieving character engraving. However, the high energy of the laser can cause localized burning of the PU leather, resulting in a whitish appearance of the characters. This whitishness not only affects the clarity and aesthetics of the characters, reducing the overall quality of the product, but may also impair the product's information delivery function due to unclear characters, leading to a poor user experience.
[0003] To address the aforementioned issues, current technologies commonly employ manual cleaning of laser-engraved characters. However, manual cleaning is inefficient, requiring significant manpower and time in large-scale industrial production. This not only increases labor costs for enterprises but also fails to meet the demands of efficient and continuous production on the production line, thus hindering the improvement of production efficiency. Utility Model Content
[0004] To address the technical problems existing in the background art, this utility model proposes an automatic cleaning device for laser-engraved characters.
[0005] This utility model proposes an automatic cleaning device for laser-engraved characters, comprising a vertical drive module, a horizontal drive module mounted on the drive end of the vertical drive module, a carrier plate mounted on the drive end of the horizontal drive module, and several brushes mounted on the lower part of the carrier plate; the vertical drive module includes a bracket, a vertical drive cylinder mounted on the top of the bracket and a lifting seat slidably connected thereto, the vertical drive cylinder driving the lifting seat to rise and fall; the horizontal drive module includes a horizontal drive cylinder mounted on the front of the lifting seat and a horizontal moving seat slidably connected thereto, the horizontal drive cylinder driving the horizontal moving seat to move horizontally reciprocatingly.
[0006] Furthermore, the automatic cleaning device for laser-engraved characters also includes:
[0007] The fixture has several workpieces with laser-engraved characters fixed inside it, and the fixture is located directly below the carrier plate.
[0008] Furthermore, the automatic cleaning device for laser-engraved characters also includes:
[0009] The base is symmetrically arranged on both sides of the fixture, and a pressure plate is installed on the top of the base to fix the fixture.
[0010] Furthermore, the bracket and the lifting seat are slidably connected by symmetrically arranged vertical linear guide rails, and the transverse sliding seat and the lifting seat are slidably connected by transverse linear guide rails.
[0011] Furthermore, the carrier plate has several mounting holes inside, and the brush is fixed in each mounting hole.
[0012] Furthermore, the top of the brush is connected to a brush holder, the size of which is larger than the mounting hole, so as to engage with the upper part of the mounting hole.
[0013] Furthermore, a clamp is installed at the top of the carrier plate and at the position corresponding to each mounting hole, and the clamp applies downward pressure to fix the brush holder.
[0014] The beneficial effects of this utility model are as follows: Through the precise coordinated movement of the vertical and horizontal drive modules, the brush can be quickly and accurately positioned at the laser-engraved character position on the PU leather back cover of the mobile phone, achieving efficient and automated cleaning. Compared with the traditional manual cleaning method, the cleaning efficiency is greatly improved, while ensuring uniform cleaning force, effectively removing impurities in the whitened areas caused by burning, significantly improving the character cleaning quality, and enhancing the overall product quality. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the assembly structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the vertical drive module in this utility model;
[0018] Figure 4 This is a schematic diagram of the transverse drive module in this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the carrier plate in this utility model with a brush installed.
[0020] In the diagram: 1. Vertical drive module; 11. Bracket; 12. Vertical drive cylinder; 13. Vertical linear guide rail; 14. Lifting seat; 2. Horizontal drive module; 21. Horizontal drive cylinder; 22. Horizontal linear guide rail; 23. Horizontal moving seat; 3. Carrier plate; 31. Mounting hole; 32. Brush; 33. Fixture; 34. Brush holder; 4. Fixture; 5. Base; 51. Pressure plate. Detailed Implementation
[0021] Reference Figure 1-5 This utility model proposes an automatic cleaning device for laser-engraved characters, mainly composed of a vertical drive module 1, a horizontal drive module 2, a carrier plate 3, a brush 32, a fixture 4, a base 5, and a pressure plate 51. Through the coordinated movement of the vertical drive module 1 and the horizontal drive module 2, the carrier plate 3 and the brush 32 on it are driven to move in the horizontal and vertical directions, realizing automatic cleaning of the PU leather back cover of a mobile phone with laser-engraved characters placed in the fixture 4. At the same time, the base 5 and the pressure plate 51 are used to fix the fixture 4 to ensure the stability of the cleaning process. The specific solution is as follows:
[0022] Reference Figure 3 The vertical drive module 1 includes a bracket 11, a vertical drive cylinder 12, a vertical linear guide rail 13, and a lifting seat 14. The vertical drive cylinder 12 is installed on the top of the bracket 11, and the lifting seat 14 is slidably connected to it through the symmetrically arranged vertical linear guide rail 13. The vertical linear guide rail 13 can ensure that the lifting seat 14 can move up and down stably along a straight line under the drive of the vertical drive cylinder 12, reducing friction and shaking during the movement and improving the accuracy and stability of the movement.
[0023] Reference Figure 4 The transverse drive module 2 consists of a transverse drive cylinder 21, a transverse linear guide rail 22, and a transverse shift seat 23. The transverse drive cylinder 21 is fixed on the lifting seat 14, and the transverse shift seat 23 is slidably connected to the lifting seat 14 through the transverse linear guide rail 22. When the transverse drive cylinder 21 works, it can drive the transverse shift seat 23 to move laterally and reciprocally along the transverse linear guide rail 22, thereby realizing the position adjustment of the carrier plate 3 in the horizontal direction.
[0024] The carrier plate 3 is mounted on the transverse seat 23 and serves as the mounting carrier for the brush 32. Several mounting holes 31 are evenly distributed inside the carrier plate 3 for fixing the brush 32. The top of the brush 32 is connected to the brush seat 34, and the size of the brush seat 34 is larger than the diameter of the mounting hole 31. During installation, the brush 32 and the brush seat 34 are inserted into the mounting hole 31 in an inverted manner, so that the brush seat 34 is engaged in the upper part of the mounting hole 31, thereby achieving the initial fixation of the brush 32. In order to further ensure the stability of the installation of the brush 32, a clamp 33 is installed at the top of the carrier plate 3 and at the position corresponding to each mounting hole 31. The clamp is set as a vertical clamp. The clamp 33 can apply downward pressure to the brush seat 34, and firmly fix the brush seat 34 in the mounting hole 31 to prevent the brush 32 from loosening or falling off during the cleaning process.
[0025] The fixture 4 is located directly below the carrier plate 3. Several PU leather back covers with laser-engraved characters are fixed inside the fixture. The bases 5 are symmetrically arranged on both sides of the fixture 4. Each base 5 has a pressure plate 51 installed on its top. It should be noted that both the fixture 4 and the bases 5 are mounted on the turntable. When it is necessary to fix the fixture 4, the pressure plate 51 is installed on the base 5. After installation, the pressure plate 51 presses down on the edge of the fixture 4, applying downward pressure to the fixture 4 and pressing the fixture 4 tightly on the turntable to prevent the fixture 4 from moving or shaking due to external force during the cleaning process.
[0026] When the device is working, it first fixes the PU leather back cover of the mobile phone with laser-engraved characters to be cleaned inside the fixture 4. Then the fixture 4 is rotated with the turntable to stop directly below the carrier plate 3. The turntable is driven by a cam divider and can rotate intermittently.
[0027] Then, the vertical drive cylinder 12 is activated, which drives the lifting seat 14 to descend along the vertical linear guide rail 13, causing the horizontal drive module 2, the carrier plate 3 and the brush 32 to descend synchronously until the bottom of the brush 32 contacts the surface of the PU leather material of the back cover of the mobile phone.
[0028] Then, the transverse drive cylinder 21 is activated, which drives the transverse shifter 23 to move laterally back and forth along the transverse linear guide rail 22, thereby causing the carrier plate 3 and the brush 32 to move back and forth in the horizontal direction to clean the character surface.
[0029] After cleaning, the vertical drive cylinder 12 drives the horizontal drive module 2, the carrier plate 3 and the brush 32 to rise and reset synchronously. Then, the cam divider drives the turntable, the fixture 4 and the cleaned PU leather back cover of the mobile phone to rotate to the next process.
[0030] 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. An automatic cleaning device for laser-engraved characters, characterized in that, The system includes a vertical drive module (1), a horizontal drive module (2) is mounted on the drive end of the vertical drive module (1), a carrier plate (3) is mounted on the drive end of the horizontal drive module (2), and several brushes (32) are mounted on the lower part of the carrier plate (3); the vertical drive module (1) includes a bracket (11), a vertical drive cylinder (12) is mounted on the top of the bracket (11), and a lifting seat (14) is slidably connected thereto, and the vertical drive cylinder (12) drives the lifting seat (14) to rise and fall; the horizontal drive module (2) includes a horizontal drive cylinder (21) mounted on the front of the lifting seat (14), and a horizontal moving seat (23) slidably connected thereto, and the horizontal drive cylinder (21) drives the horizontal moving seat (23) to move horizontally back and forth.
2. The automatic cleaning device for laser-engraved characters according to claim 1, characterized in that, Also includes: The fixture (4) has several workpieces with laser-engraved characters fixed inside it, and the fixture (4) is located directly below the carrier plate (3).
3. The automatic cleaning device for laser-engraved characters according to claim 2, characterized in that, Also includes: The base (5) is symmetrically arranged on both sides of the fixture (4), and a pressure plate (51) is installed on the top of the base (5) to fix the fixture (4).
4. The laser-engraved character automatic cleaning device according to claim 1, wherein, The bracket (11) and the lifting seat (14) are slidably connected by symmetrically arranged vertical linear guide rails (13), and the transverse seat (23) and the lifting seat (14) are slidably connected by transverse linear guide rails (22).
5. The laser-engraved character automatic cleaning device according to claim 1, wherein, The carrier plate (3) has several mounting holes (31) inside, and the brush (32) is fixed in each mounting hole (31).
6. The laser-engraved character automatic cleaning device according to claim 5, wherein, The top of the brush (32) is connected to the brush holder (34), which is larger than the mounting hole (31) so as to engage with the upper part of the mounting hole (31).
7. The laser-engraved character automatic cleaning device according to claim 6, wherein, A clamp (33) is installed at the top of the carrier plate (3) and at the position corresponding to each mounting hole (31), and the clamp (33) applies downward pressure to fix the brush holder (34).