Laser etching mechanism
By designing a vacuum cover with an arc-shaped vacuum cleaner surface that is suitable for the cylindrical roller in the laser etching mechanism and setting up multiple vacuum cleaners, the problem of dust diffusion is solved, and more efficient dust removal and more stable laser etching effect are achieved.
Patent Information
- Application Number
- CN202422544340.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In the prior art, during laser etching, the dust removal method can only absorb some of the dust, and the remaining dust floats around the laser processing, contaminating the laser lens and blocking the laser, affecting the etching stability and effect.
A laser etching mechanism is designed, the arc-shaped vacuum cleaner surface of the vacuum cleaner cover is adapted to the surface of the cylindrical roller, and the first and second vacuum cleaner ports are provided, the laser head is facing the first vacuum cleaner port, and the arc-shaped vacuum cleaner mask is provided on the cylindrical roller, and the dust is directly sucked away through the vacuum cleaner port to reduce diffusion.
It improves the dust removal effect during laser etching, avoids dust contamination of laser lenses, enhances etching stability and effect, and ensures the cleanliness of the laser processing area.
Smart Images
Figure CN223301063U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser etching dust removal, in particular to a laser etching mechanism. Background Art
[0002] Lithium battery pole pieces are an important component of lithium-ion batteries, including positive and negative pole pieces. In the production and preparation of pole pieces, steps such as tab cutting and shaping, pole piece cutting, and pole piece striping require laser etching.
[0003] Currently, when laser etching is performed on a pole piece, a vacuum hood is placed next to the laser to remove the dust generated by the ablation process. However, this dust removal method can only remove part of the dust. The remaining dust will float in the space around the laser processing area, easily contaminating the laser lens and blocking the laser, affecting the stability of the laser etching and reducing the laser etching effect. Utility Model Content
[0004] An embodiment of the present utility model provides a laser etching mechanism to solve the problem that the dust removal method in the prior art can only absorb part of the dust, and the remaining dust will float in the surrounding space of the laser processing, easily contaminating the laser lens and blocking the laser, affecting the stability of the laser etching and reducing the laser etching effect.
[0005] The utility model discloses a laser etching mechanism, comprising a frame, a dust hood, a cylindrical roller and a laser. The dust hood, the cylindrical roller and the laser are mounted on the frame, the dust hood is located beside the cylindrical roller, and the laser is located above the dust hood.
[0006] The dust suction hood has an arc-shaped dust suction surface facing the surface of the cylindrical roller, and the arc-shaped dust suction surface is set to an arc shape that is adapted to the arc-shaped surface of the cylindrical roller; a first dust suction port is opened on the arc-shaped dust suction surface, and a first opening is opened on the top of the dust suction hood, and the first opening is set corresponding to the first dust suction port, and the laser head of the laser is set toward the first dust suction port.
[0007] Optionally, a second dust suction port is provided at the front end of the dust hood.
[0008] Optionally, the first dust suction port, the first opening and the second dust suction port are all extended along the axial direction of the cylindrical roller, and the extension length is equal to the axial length of the cylindrical roller.
[0009] Optionally, the first dust suction port is opened on a side of the arc-shaped dust suction surface close to the second dust suction port.
[0010] Optionally, the second dust suction port is opened at the front end portion of the dust suction hood.
[0011] Optionally, the distance between the arc-shaped dust suction surface and the arc-shaped surface of the cylindrical roller is 1-5 mm.
[0012] Optionally, the dust suction hood includes a hood body and an air duct; the curved dust suction surface, the first dust suction port and the first opening are arranged on the hood body, and the air duct is connected to the end of the hood body away from the curved dust suction surface; a partition is arranged in the hood body, and the partition is horizontally installed between the curved dust suction surface and the air outlet of the air duct.
[0013] Optionally, except for the air outlet, the edge of the partition is connected to the inner wall of the cover body or the inner wall of the curved dust collection surface.
[0014] Optionally, a protrusion extending along the axial direction of the cylindrical roller is provided on the top of the cover body, and the first opening is opened on the protrusion.
[0015] Optionally, the laser etching mechanism further includes an exhaust device connected to the air duct.
[0016] Compared to the prior art, the laser etching mechanism provided by the embodiments of the present invention has the following advantages: the curved dust collection surface of the dust collection hood is configured to conform to the curved surface of the cylindrical roller. Furthermore, a first dust collection port is provided on the curved dust collection surface, and a first opening is provided at the top of the dust collection hood. The first opening is positioned corresponding to the first dust collection port, and the laser head of the laser is positioned toward the first dust collection port. This allows the laser light emitted by the laser head located above to directly pass through the first opening and the first dust collection port to etch the laser processing object on the cylindrical roller. Since the laser etching location is located at the first dust collection port, the dust generated by the laser etching can be directly suctioned away through the first dust collection port. Furthermore, since the curved dust collection surface is positioned on the curved surface of the cylindrical roller, dust is less likely to diffuse into the surrounding space, facilitating its removal by the dust collection hood. Therefore, the laser etching mechanism of the present invention can improve dust removal during laser etching, prevent dust from contaminating the laser lens and obstructing the laser, improve laser etching stability, and enhance the laser etching effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:
[0018] Figure 1 It is a schematic diagram of the laser etching mechanism of an embodiment of the present utility model;
[0019] Figure 2 is a cross-sectional view of the laser etching mechanism of an embodiment of the present utility model;
[0020] Figure 3 It is a schematic diagram of a dust hood according to an embodiment of the present utility model.
[0021] The reference numerals in the figures are:
[0022] 1. Dust hood; 11. Hood body; 111. Curved suction surface; 112. First suction port; 113. Raised portion; 113a. First opening; 114. Front end portion; 114a. Second suction port; 115. Partition; 12. Air duct; 121. Air outlet; 2. Cylindrical roller; 3. Laser; 31. Laser head; 32. Laser; 4. Exhaust channel. DETAILED DESCRIPTION
[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.
[0024] The present invention provides a laser etching mechanism. Figures 1 to 3 As shown, the laser etching mechanism includes a frame, a dust hood 1, a cylindrical roller 2 and a laser 3; the dust hood 1, the cylindrical roller 2 and the laser 3 are installed on the frame, the dust hood 1 is located next to the cylindrical roller 2, and the laser 3 is located above the dust hood 1.
[0025] The dust hood 1 has an arc-shaped dust suction surface 111 facing the surface of the cylindrical roller 2, and the arc-shaped dust suction surface 111 is set to an arc shape that is adapted to the arc-shaped surface of the cylindrical roller 2; a first dust suction port 112 is opened on the arc-shaped dust suction surface 111, and a first opening 113a is opened on the top of the dust hood 1, and the first opening 113a is set corresponding to the first dust suction port 112, and the laser head 31 of the laser 3 is set toward the first dust suction port 112.
[0026] The laser etching mechanism of the present invention configures the curved dust collection surface 111 of the dust collection hood 1 into an arc shape that conforms to the curved surface of the cylindrical roller 2. Furthermore, a first dust collection port 112 is defined on the curved dust collection surface 111. A first opening 113a is defined at the top of the dust collection hood 1, corresponding to the first dust collection port 112. The laser head 31 of the laser 3 is positioned toward the first dust collection port 112. This allows the laser light 32 emitted by the laser head 31 of the laser 3, located at the top, to directly pass through the first opening 113a and the first dust collection port 112 to perform laser etching on the laser processing object on the cylindrical roller 2. Since the laser etching location is located directly at the location of the first dust collection port 112, the dust generated by the laser etching can be directly removed through the first dust collection port 112. Furthermore, since the curved dust collection surface 111 is positioned on the curved surface of the cylindrical roller 2, the dust is less likely to spread to the surrounding area, facilitating its removal by the dust collection hood 1. Therefore, the laser etching mechanism of the present invention can improve the dust removal effect during laser etching, avoid dust contamination of the laser lens and shielding of the laser 32, improve the stability of laser etching, and improve the laser etching effect.
[0027] Specifically, the laser etching mechanism of the present invention is applied to the laser etching of lithium-ion battery pole pieces. During laser etching, the pole piece is transported on the cylindrical roller 2 and passes through the first dust suction port 112, and the laser 3 performs laser etching on the pole piece.
[0028] Furthermore, a second dust suction port 114a is provided at the front end portion 114 of the dust hood 1. By adding the second dust suction port 114a to the front end portion 114 of the dust hood 1, the dust hood 1 can cover a wider dust suction area of the cylindrical roller 2, thereby increasing the dust suction coverage area and efficiency. In this way, when the laser processing object on the cylindrical roller 2 generates dust during the laser etching process, it will not only be sucked away by the first dust suction port 112, but the second dust suction port 114a at the front end portion 114 can also simultaneously perform dust suction, promptly sucking away the generated dust from different angles and positions, reducing the residence time of the dust in the processing area, thereby more effectively controlling the spread of dust and improving the dust removal effect. At the same time, the second dust suction port 114a can also improve the air intake effect.
[0029] Specifically, the first dust suction port 112, the first opening 113a, and the second dust suction port 114a all extend along the axial direction of the cylindrical roller 2, and their extension length is equal to the axial length of the cylindrical roller 2. The first opening 113a and the first dust suction port 112 extend along the axial length of the cylindrical roller 2, ensuring that the laser 3 can move freely along the axial length of the cylindrical roller 2 for processing. The first dust suction port 112 and the second dust suction port 114a extend axially along the cylindrical roller 2, ensuring that dust is collected along the entire length of the cylindrical roller 2. This allows for more comprehensive removal of dust generated during the laser etching process, improving overall dust removal efficiency.
[0030] The first dust suction port 112 is located on the side of the curved dust suction surface 111 near the second dust suction port 114a. Placing the first dust suction port 112 on the side near the second dust suction port 114a allows the suction forces of the first dust suction port 112 and the second dust suction port 114a to cooperate with each other, centrally sucking away dust generated during the laser etching process and improving dust collection efficiency. Furthermore, this layout helps optimize the airflow direction inside the dust hood 1, allowing dust to be quickly directed to the first dust suction port 112 after generation and effectively sucked away, reducing the spread of dust in the processing area. Therefore, through the synergistic effect of the first dust suction port 112 and the second dust suction port 114a, the ability to control dust can be enhanced, especially when the amount of dust generated is large or the dust particles are fine. This design can provide better dust control effects, maintain the cleanliness of the laser 32 processing area, reduce dust contamination of the laser 3, and avoid affecting the optical performance and processing accuracy of the laser 3.
[0031] Specifically, the second dust suction port 114a is opened to fully occupy the front end portion 114 of the dust suction hood 1. By allowing the second dust suction port 114a to fully occupy the front end portion 114 of the dust suction hood 1, the area of the second dust suction port 114a can be maximized, thereby improving the dust collection efficiency.
[0032] Furthermore, the distance between the curved dust collection surface 111 and the curved surface of the cylindrical roller 2 is 1-5 mm. The distance of 1-5 mm between the curved dust collection surface 111 and the curved surface of the cylindrical roller 2 can ensure that the curved dust collection surface 111 is not easily interfered with the curved surface of the cylindrical roller 2. At the same time, maintaining a small distance of 1-5 mm between the curved dust collection surface and the surface of the cylindrical roller 2 can ensure that dust is immediately sucked away after it is generated, preventing dust from spreading into the working environment. Moreover, the gap range of 1-5 mm helps to form an exhaust channel 4 between the curved dust collection surface 111 and the curved surface of the cylindrical roller 2. The exhaust channel 4 is a relatively closed space, which reduces the possibility of dust escaping from the edge of the dust collection hood 1, improves the dust collection effect, and thus improves the overall dust collection efficiency. In addition, by precisely controlling the distance between the curved dust collection surface and the processing surface to form the exhaust channel 4 of 1-5 mm, the airflow and suction force of the dust collection port can be optimized, ensuring that dust collection can be effectively performed even when a large amount of dust is generated by laser etching. Under the action of exhaust, the airflow will enter the exhaust channel 4 from the bottom and both sides of the exhaust channel 4, and enter the first dust suction port 112 from the exhaust channel 4. In this process, the dust scattered into the exhaust channel 4 will be taken away or the dust will be prevented from escaping to the exhaust channel 4 and its surroundings, thereby improving the dust removal effect.
[0033] Specifically, the dust hood 1 includes a hood body 11 and an air duct 12; a curved dust collection surface 111, a first dust collection port 112, and a first opening 113a are provided on the hood body 11, and the air duct 12 is connected to the end of the hood body 11 away from the curved dust collection surface 111; a partition 115 is provided within the hood body 11, and is laterally installed between the curved dust collection surface 111 and the air outlet 121 of the air duct 12. Due to the presence of the curved dust collection surface 111, the cavity inside the hood body 11 is larger. The partition 115 is provided between the curved dust collection surface 111 and the air outlet 121 of the air duct 12, which can guide the airflow to the air outlet 121 of the air duct 12 for extraction, thereby increasing the airflow speed, preventing turbulence in the cavity inside the hood body 11, and reducing airflow noise. More specifically, except for the air outlet 121, the entire perimeter of the partition 115 is connected to the inner wall of the cover body 11 or the inner wall of the curved dust collection surface 111. In this way, the partition 115 can separate the upper and lower parts of the inner cavity of the cover body 11, forming a more closed and relatively enclosed space, which is conducive to guiding the airflow to the air outlet 121 of the air duct 12 for extraction.
[0034] Specifically, a first opening 113a is provided at the top of the hood body 11, and a second dust suction port 114a is provided at the front end 114 of the hood body 11. The front end 114 is the end of the hood body 11 that is away from the air duct 12. More specifically, a raised portion 113 extending axially along the cylindrical roller 2 is provided at the top of the hood body 11, and the first opening 113a is provided on the raised portion 113. The laser etching mechanism also includes an exhaust device connected to the air duct 12. When the exhaust device is activated, air is drawn in, sucking away dust through the dust hood 1.
[0035] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.
Claims
1. A laser etching mechanism, characterized in that: It includes a frame, a dust hood, a cylindrical roller and a laser; the dust hood, the cylindrical roller and the laser are installed on the frame, the dust hood is located beside the cylindrical roller, and the laser is located above the dust hood; The dust suction hood has an arc-shaped dust suction surface facing the surface of the cylindrical roller, and the arc-shaped dust suction surface is set to an arc shape that is adapted to the arc-shaped surface of the cylindrical roller; a first dust suction port is provided on the arc-shaped dust suction surface, and a first opening is provided on the top of the dust suction hood, and the first opening is set corresponding to the first dust suction port, and the laser head of the laser is set toward the first dust suction port.
2. The laser etching mechanism according to claim 1, characterized in that: The front end portion of the dust collection hood is provided with a second dust collection port.
3. The laser etching mechanism according to claim 2, characterized in that: The first dust suction port, the first opening and the second dust suction port are all extended along the axial direction of the cylindrical roller, and the extension length is equal to the axial length of the cylindrical roller.
4. The laser etching mechanism according to claim 2, characterized in that: The first dust suction port is opened on a side of the arc-shaped dust suction surface close to the second dust suction port.
5. The laser etching mechanism according to claim 2, characterized in that: The second dust suction port is opened at the front end portion of the dust suction cover.
6. The laser etching mechanism according to claim 1, characterized in that: The distance between the arc-shaped dust suction surface and the arc-shaped surface of the cylindrical roller is 1-5 mm.
7. The laser etching mechanism according to any one of claims 1 to 6, characterized in that: The dust suction hood includes a hood body and an air duct; the curved dust suction surface, the first dust suction port and the first opening are arranged on the hood body, and the air duct is connected to the end of the hood body away from the curved dust suction surface; a partition is arranged in the hood body, and the partition is horizontally installed between the curved dust suction surface and the air outlet of the air duct.
8. The laser etching mechanism according to claim 7, characterized in that: Except for the air outlet, the edge of the partition is connected to the inner wall of the cover body or the inner wall of the curved dust collection surface.
9. The laser etching mechanism according to claim 7, characterized in that: A protrusion extending along the axial direction of the cylindrical roller is provided on the top of the cover body, and the first opening is opened on the protrusion.
10. The laser etching mechanism according to claim 7, characterized in that: The laser etching mechanism further includes an exhaust device, which is connected to the air duct.