Laser edge cleaning device

Abstract

The utility model discloses a laser edge cleaning device, and relates to the technical field of perovskite solar cell production, the laser edge cleaning device comprises a displacement assembly, the displacement assembly comprises a displacement track and a feeding plate which are in sliding connection, the feeding plate is located below the center of a glass sheet, and the size of the feeding plate is smaller than that of the glass sheet; the multiple laser assemblies are symmetrically arranged, located on the two sides of the glass sheet and connected to the laser track in a matched mode, each laser assembly comprises a laser head, a galvanometer and a field lens, and the field lens is aligned to the peripheral position of the glass sheet; the following dust removal assembly comprises a following linear track and a dust removal pipe opening which are in sliding connection, and the dust removal pipe opening is connected with a dust removal instrument through an air pipe and is aligned to the peripheral position of the glass sheet. According to the multi-axis linkage efficient laser edge cleaning device, center vacuum adsorption is achieved, covering of the edge cleaning range on the two sides is avoided, follow-up dust collection can be achieved, and dust is reduced.

Description

Technical Field

[0001] This utility model relates to the field of perovskite solar cell production technology, specifically to a laser edge cleaning device. Background Technology

[0002] Perovskite solar cells utilize perovskite-type organometal halide semiconductors as light-absorbing materials. They represent the third generation of high-efficiency thin-film batteries, offering advantages such as high efficiency, low cost, and high flexibility. Among these, multilayer perovskite thin-film batteries have received widespread attention and development in the industry due to their superior photoelectric conversion efficiency and stability.

[0003] Currently, laser technology is involved in the entire fabrication process of multilayer perovskite thin-film solar cells and is an essential step in the production process. The production of multilayer perovskite thin-film solar cells requires multiple parallel laser scribing processes on the transparent conductive glass, followed by laser edge cleaning. Laser edge cleaning removes the edge areas of the thin film by defining these areas with laser scribing. Most coating edge cleaning equipment on the market is currently single-axis laser edge cleaning, which is more suitable for coating edge cleaning of small-sized glass sheets. The cycle time of a single-axis, single-laser head is too long and the efficiency is too low. Furthermore, the large-sheet glass mounting fixtures on semi-automatic production lines require manual operation by workers, increasing labor time. Utility Model Content

[0004] Technical problem to be solved by the utility model

[0005] The technical problem to be solved by this utility model is to provide a high-efficiency laser edge cleaning device with multi-axis linkage, which uses central vacuum adsorption to avoid covering the edge cleaning range on both sides, and can also follow up to collect dust, thereby reducing dust.

[0006] Technical solution

[0007] To solve the above problems, the technical solution provided by this utility model is as follows:

[0008] A laser edge cleaning device includes a displacement assembly comprising a slidably connected displacement track and a feeding plate, the feeding plate being located below the center of a glass sheet and smaller than the glass sheet; a laser assembly comprising multiple symmetrical components located on both sides of the glass sheet and connected to the laser track, the laser assembly comprising a laser head, a galvanometer, and a field lens, the field lens being aligned with the periphery of the glass sheet; and a following dust removal assembly comprising a slidably connected following linear track and a dust removal port, the dust removal port being connected to a dust removal instrument via an air pipe, the dust removal port being aligned with the periphery of the glass sheet.

[0009] The displacement assembly includes a slidingly connected displacement track and a feed plate. The feed plate is located below the center of the glass sheet and is smaller than the glass sheet to ensure it does not obstruct the edge areas of the glass sheet. This design allows the laser assembly to access the periphery of the glass sheet for processing without obstruction.

[0010] Laser Assembly: Composed of multiple symmetrically arranged laser heads, galvanometers, and field lenses, these components are mounted on a laser track and can move along the track. The field lens is precisely aligned with the periphery of the glass slide to ensure that the laser energy is concentrated in the area to be processed. The laser head generates a high-energy laser beam, which is guided to the field lens by the galvanometer system and then focused onto the edge of the glass slide for cutting and cleaning.

[0011] Dust collection component: Includes a slidingly connected linear track and a dust collection port. The dust collection port connects to an air compressor, sucking up dust and debris generated during processing. The dust collection port is also positioned around the perimeter of the glass plate, allowing for more precise and timely removal of waste generated during processing, maintaining a clean work area, and reducing the impact of dust on subsequent processing.

[0012] Multi-axis linkage: To achieve a highly efficient processing procedure, coordinated movement may occur between the displacement components, laser components, and dust collection components, i.e., multi-axis linkage. This means that each component can move synchronously according to programmed instructions, ensuring that the laser always precisely targets the target area throughout the entire processing, while the dust collection device follows closely behind to promptly remove processing residues. Both sides of the glass slide are cleaned simultaneously, resulting in extremely high efficiency.

[0013] Central vacuum adsorption: To avoid affecting the edge cleaning range on both sides, vacuum adsorption is usually used to fix the glass sheet in the center. This ensures the stability of the glass sheet during processing without interfering with the edge processing.

[0014] Optionally, the displacement component is connected to a feeding component, which includes a feeding lifting cylinder, a pushing cylinder, and a feeding mounting frame. The output end of the feeding lifting cylinder is connected to the pushing cylinder, and the output end of the pushing cylinder is connected to a roller, which carries a glass sheet.

[0015] The loading lifting cylinder can move up and down to adjust the height of the pushing cylinder and rollers on it, so that the glass sheet can be accurately placed on the loading plate.

[0016] The push cylinder is connected to the output end of the loading and lifting cylinder and is responsible for the horizontal pushing action. When the glass sheet needs to be delivered to the processing position, the push cylinder will push the roller (and the glass sheet on it) to move horizontally until the glass sheet is directly above the loading plate.

[0017] Loading mounting frame: As the supporting structure for the entire loading assembly, it ensures that all components (such as the loading lifting cylinder, pushing cylinder, etc.) are firmly fixed and maintain the correct relative position. This helps to ensure the stability and accuracy of operation.

[0018] Rollers: Installed at the output end of the push cylinder, these rollers carry the glass sheet. Their design allows the glass sheet to move smoothly horizontally while reducing friction and protecting it from damage. Rollers also help precisely align the glass sheet, ensuring accurate placement on the loading plate every time.

[0019] Optionally, symmetrically arranged side-pushing cylinders are provided on both sides of the displacement track.

[0020] The side-push cylinders have the same stroke control and are symmetrically arranged, which helps to align the center line of the glass sheet with the center line of the loading plate for positioning.

[0021] Optionally, the feeding plate is provided with microporous ceramic and connected to a vacuum extraction pipe, which is connected to an air compressor.

[0022] Microporous ceramics are ceramic materials with numerous tiny pores. These micropores can be evenly distributed across the entire surface, forming a highly efficient network of gas flow channels.

[0023] Due to the presence of micropores, when a vacuum is applied, the microporous ceramic can provide a large area of ​​suction points, allowing the glass sheet to be uniformly subjected to adsorption forces, thereby ensuring its flatness and stability during processing.

[0024] Optionally, the laser assembly is located below the glass plate, and the dust removal assembly is located above the glass plate.

[0025] Emitting the laser from below ensures its path is unaffected by other mechanical components, allowing the laser to directly target the edges of the glass sheet and improve processing accuracy. The overhead dust collection system directly covers the processing area, instantly removing dust and debris as the laser processing path moves, maintaining a clean working environment. During laser processing, dust and debris falling onto the laser assembly or glass sheet can damage optical components or affect processing quality. The overhead dust collection system effectively prevents this from happening.

[0026] Optionally, the laser head in the laser assembly is connected to the module mounting plate via a laser lifting track.

[0027] The laser head can be precisely positioned vertically using the laser lifting track to accommodate glass sheets of different thicknesses or with different processing requirements.

[0028] Optionally, a suspension frame is slidably connected to the following linear track, and multiple fixed plates are connected to the lower end of the suspension frame, with the dust removal pipe port installed at the end of the fixed plate.

[0029] The main function of the suspension bracket is to support and carry the underlying fixed plate and dust collection nozzles, ensuring their stability during processing and allowing them to slide along the track, following the laser processing path. Depending on actual needs, multiple fixed plates can be connected to the lower end of the suspension bracket to install multiple dust collection nozzles. This increases the dust collection coverage and improves cleaning efficiency. Multiple dust collection nozzles working simultaneously cover a larger processing area, ensuring timely removal of all generated dust and debris, maintaining a clean working environment. The sliding connection between the suspension bracket and the following linear track ensures precise synchronization of the dust collection components with the laser processing path, avoiding problems caused by time differences in dust collection.

[0030] Optionally, an unloading assembly is also included, comprising an unloading cylinder and a sliding plate. The output end of the unloading cylinder is connected to a cylindrical nylon pad, which extends and retracts along the direction of the sliding of the feed plate and pushes the glass sheet. The sliding plate slides perpendicular to the direction of the sliding of the feed plate.

[0031] The entire unloading process is fully automated, reducing manual intervention and improving production efficiency and safety. A cylindrical nylon pad is installed at the output end of the unloading cylinder and moves telescopically along the direction of the feeding plate. When the cylinder extends, the cylindrical nylon pad gently contacts the glass sheet and smoothly pushes it towards the sliding plate. The use of the cylindrical nylon pad effectively reduces the risk of scratching the glass sheet surface, ensuring product quality. The sliding plate moves the unloading cylinder and the cylindrical nylon pad along the width of the glass sheet. During edge cleaning, they are separated to avoid interference. After edge cleaning, the sliding plate moves the unloading cylinder and the cylindrical nylon pad closer together, allowing the glass sheet to be unloaded.

[0032] Beneficial effects

[0033] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0034] The technical solution provided by this utility model uses multi-axis linkage to improve edge cleaning efficiency and is suitable for edge cleaning of large-size glass sheets; it uses product positioning adsorption function to fix the product by using vacuum adsorption in the center, effectively avoiding the covering of the edge cleaning range on both sides; a mobile dust removal device is added above the edge cleaning structure, which can operate synchronously with the edge cleaning to reduce dust. Attached Figure Description

[0035] Figure 1 A schematic diagram of the overall structure of a laser edge cleaning device proposed in an embodiment of this utility model;

[0036] Figure 2 A schematic diagram of the internal structure of a laser edge cleaning device proposed in an embodiment of this utility model;

[0037] Figure 3A schematic diagram of the structure of a displacement component of a laser edge clearing device proposed in an embodiment of this utility model;

[0038] Figure 4 A schematic diagram of the structure of a microporous ceramic for a laser edge cleaning device proposed in an embodiment of this utility model;

[0039] Figure 5 A schematic diagram of the following dust removal component of a laser edge cleaning device proposed for an embodiment of this utility model;

[0040] Figure 6 A schematic diagram of the unloading assembly and laser assembly of a laser edge-cleaning device proposed for an embodiment of this utility model;

[0041] 1. Protective cover; 2. Frame assembly; 201. Support legs; 202. Base frame; 203. Base; 204. Support column; 205. Platform; 3. Feeding assembly; 301. Feeding lifting cylinder; 302. Pushing cylinder; 303. Feeding mounting frame; 304. Roller; 4. Displacement assembly; 401. Displacement track; 402. Feeding plate; 403. Side pushing cylinder; 404. Microporous ceramic; 5. Following dust removal assembly; 501. Dust removal support rod; 502. Dust removal top plate; 50 3. Following linear track; 504. Suspension frame; 505. Dust removal lifting cylinder; 506. Fixing plate; 507. Dust removal pipe inlet; 508. Air pipe; 6. Unloading assembly; 601. Unloading cylinder; 602. Cylindrical nylon pad; 603. Slide plate; 604. Sliding track; 7. Laser assembly; 701. Laser track; 702. Module mounting plate; 703. Laser head; 704. Galvanometer; 705. Field lens; 706. Laser lifting track; 707. Cable chain; 8. Glass plate. Detailed Implementation

[0042] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0043] Example

[0044] Combined with appendix Figure 1 , 2A laser edge cleaning device includes a protective cover 1 and a frame assembly 2. The protective cover 1 protects the internal components and isolates the glass sheet 8 from debris splashing during laser edge cleaning. The frame assembly 2 includes legs 201 and casters. A base frame 202 and a base 203 are provided above the legs 201. A support column 204 stands on the base 203, and a platform 205 is connected to the top of the support column 204. A laser assembly 7 is mounted on the base 203, and the remaining components are mounted on the platform 205. A dust removal assembly 5 is mounted higher on the platform 205 via a dust removal support rod 501. The laser assembly 7 is located below the glass sheet 8, and the dust removal assembly 5 is located above the glass sheet 8. The laser assembly 7 includes a laser head 703, a galvanometer 704, and a field lens 705, which are mounted on a laser track 701 below the glass sheet 8. The laser beam is focused by these components and penetrates upward through the glass sheet 8 to process the edge of the glass sheet 8. Since the laser beam is emitted from below, it avoids the problem of limited vision or operation caused by components such as the laser head 703 obstructing the view.

[0045] Combined with appendix Figure 3 , 4 The displacement assembly 4 includes a slidingly connected displacement track 401 and a feeding plate 402. The feeding plate 402 is located below the center of the glass sheet 8 and is smaller than the glass sheet 8. Symmetrically arranged side-pushing cylinders 403302 are provided on both sides of the displacement track 401. The output end of the side-pushing cylinders 403302 is equipped with a soft contact element to prevent hard impacts that could damage the glass sheet 8. The base component is arranged parallel to the edge of the glass sheet 8 for easy positioning.

[0046] The displacement component 4 is connected to the feeding component 3. The feeding component 3 includes a feeding lifting cylinder 301, a pushing cylinder 302 and a feeding mounting frame 303. The output end of the feeding lifting cylinder 301 is connected to the pushing cylinder 302. The output end of the pushing cylinder 302 is connected to a roller 304, which carries the glass sheet 8.

[0047] The feeding plate 402 is equipped with microporous ceramic 404 and connected to vacuum extraction pipe 508, which is connected to an air compressor.

[0048] Combined with appendix Figure 5 The dust removal component 5 includes a slidingly connected linear track 503 and a dust removal port 507. The dust removal port 507 is connected to a dust removal instrument via an air pipe 508, and the dust removal port 507 is aligned with the periphery of the glass plate 8.

[0049] A suspension frame 504 is slidably connected to the linear track 503. Multiple fixing plates 506 are connected to the lower end of the suspension frame 504, and a dust collection port 507 is installed at the end of each fixing plate 506. In this embodiment, the fixing plates 506 are arranged radially and are fixed to the lower end of the suspension frame 504 by bolts. Loosening the bolts allows for angle adjustment, roughly aligning them with the laser edge cleaning position for dust collection.

[0050] Combined with appendix Figure 6 The equipment also includes an unloading assembly 6, which comprises an unloading cylinder 601 and a sliding plate 603. The output end of the unloading cylinder 601 is connected to a cylindrical nylon pad 602. The cylindrical nylon pad 602 extends and retracts along the sliding direction of the feeding plate 402, pushing the glass sheet 8. The sliding plate 603 slides perpendicular to the sliding direction of the feeding plate 402. The cylindrical nylon pad 602 is made of nylon material, which has good wear resistance and a low coefficient of friction, reducing the risk of scratching the surface of the glass sheet 8.

[0051] In this embodiment, there are four symmetrical laser components 7. The laser components 7 are located on both sides of the glass plate 8 and are connected to the laser track 701. They include a laser head 703, a galvanometer 704 and a field lens 705. The field lens 705 is aligned with the periphery of the glass plate 8, which is the position where laser edge cleaning is performed.

[0052] The laser head 703 in the laser assembly 7 is connected to the module mounting plate 702 via the laser lifting rail 706.

[0053] The lifting position of the laser head 703 can be precisely controlled via a CNC system or a dedicated controller, ensuring that the expected height and angle are achieved in each processing operation. In this equipment, all drivable cylinders and motors are connected to the CNC system or dedicated controller for overall coordinated control.

[0054] The laser axis structure controls the horizontal movement of the edge clearing module, while the vertical movement module controls the laser's focus. The laser assembly 7, mounted on the laser lifting track 706, can have its etching shape and range controlled by software. The laser head 703 is electrically connected to the laser drive component via a cable chain 707.

[0055] Working principle:

[0056] Glass sheet 8 moves to platform 205 via conveyor line and feeding assembly 3. Limit cylinder 405 lifts it, located at the end of feeding plate 402. Side-pushing cylinders 403 and 302 on both sides correct the position of glass sheet 8. Feeding lifting cylinder 301 lifts pushing cylinder 302 to the working position, and pushing cylinder 302 pushes glass sheet 8 onto feeding plate 402. Then, an external air compressor evacuates microporous ceramic 404 to provide adsorption. The laser axis structure controls the horizontal movement of the edge cleaning module, while the vertical movement module controls the laser's focus. Laser assembly 7, mounted on the vertical module, can have its etching shape and range controlled by software. Dust removal assembly 5 connects to an external dust removal instrument via a stretchable flexible hose, enabling the module to perform the same dust removal function as the four-axis laser edge cleaning below. The drive limit cylinder 405 descends, releasing the limit, and the unloading cylinder 601 operates, pushing the glass sheet 8 to the transmission line.

[0057] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A laser edge cleaning device, characterized by, The utility model relates to a glass sheet cutting device, including A displacement assembly including a slidingly connected displacement track and a feeding plate, the feeding plate is located below the center of the glass sheet and has a size smaller than the glass sheet; A laser assembly is provided with a plurality of symmetrical lasers, which are located on both sides of the glass sheet and are connected to the laser track, including a laser head, a galvanometer and a field lens, the field lens is aligned with the peripheral position of the glass sheet; A follow-up dust removal assembly including a follow-up linear track and a dust removal nozzle connected by a gas pipe, the dust removal nozzle is connected with a dust removal instrument, the dust removal nozzle is aligned with the peripheral position of the glass sheet.

2. The laser edge cleaning device of claim 1, wherein, The displacement assembly is connected with a feeding assembly, the feeding assembly includes a feeding lifting cylinder, a pushing cylinder and a feeding mounting frame, the output end of the feeding lifting cylinder is connected to the pushing cylinder, the output end of the pushing cylinder is connected with a roller, the roller carries the glass sheet.

3. The laser edge cleaning device of claim 1, wherein, The displacement track is provided with a symmetrically arranged side pushing cylinder on both sides.

4. The laser edge cleaning device of claim 1, wherein, The feeding plate is provided with a microporous ceramic and connected with a vacuum air extraction pipeline, the vacuum air extraction pipeline is connected with an air compressor.

5. The laser edge cleaning device of claim 1, wherein, The laser assembly is located below the glass sheet, and the follow-up dust removal assembly is located above the glass sheet.

6. The laser edge cleaning device of claim 5, wherein, The laser head in the laser assembly is connected to the module mounting plate through a laser lifting track.

7. The laser edge cleaning device of claim 1, wherein, The follow-up linear track is slidingly connected with a suspension frame, the lower end of the suspension frame is connected with a plurality of fixing plates, and the dust removal nozzle is mounted on the end of the fixing plate.

8. The laser edge cleaning device of claim 1, wherein, It also includes an unloading assembly including an unloading cylinder and a sliding plate, the output end of the unloading cylinder is connected with a cylindrical nylon pad, the cylindrical nylon pad moves in extension and retraction along the sliding direction of the feeding plate and pushes the glass sheet, and the sliding plate slides perpendicular to the sliding direction of the feeding plate.

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