Matching liquid recovery device of glass laser-beam drilling machine

Abstract

The utility model provides a matching liquid recovery device of a glass laser-beam drilling machine, which comprises a longitudinal lifting frame (1) arranged above a glass bracket, and is characterized in that a group of protective covers (6) are arranged on the lifting frame (1), a laser probe (4) and a liquid spraying pipe (7) are arranged in the protective covers (6), a recovery device (10) is arranged below the glass bracket, the recovery device (10) comprises a recovery tank body (10a), and the recovery tank body (10a) is connected with the laser probe (4) and the liquid spraying pipe (7). The recovery tank body (10a) is communicated with a group of pipelines (10b) which are distributed corresponding to the laser beam protection covers (6), a group of filter layers (10c) and a recovery pipe (10d) are arranged in the recovery tank body (10a), and one end of the recovery pipe (10d) is communicated with a matching liquid supply assembly of the glass laser-beam drilling machine. The device is simple in structure and convenient to use, the matching liquid is recycled, the safety of the punching process is ensured, the punching speed is high, and the punching efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic glass production, in particular to a matching liquid recovery device for a glass laser drilling machine. Background Art

[0002] With the accelerated development of my country's offshore photovoltaic industry, the application of double-glass photovoltaic modules in special environments such as the ocean has become a major trend. At present, the power generation efficiency of the back of double-glass modules accounts for about 10% of the total. Since the back glass of double-glass photovoltaic modules is a common silk-screen perforated or perforated product, the glass velvet surface exposed to the environment has not been treated in any way and is difficult to resist the erosion and damage of the harsh environment such as high temperature, high humidity, and high salt fog at sea for a long time. This seriously affects the light transmittance performance of the back glass and the power generation efficiency of the double-glass module back panel. Improving the light transmittance of photovoltaic back glass has become a new demand on the module side to increase the module power. The purpose of coating the back glass surface is to improve the light transmittance of the module back panel and the weather resistance of the entire module in special environments such as the ocean, thereby ensuring the power generation efficiency of the module.

[0003] When coating and drilling holes on the velvet surface of a photovoltaic backsheet glass, you can choose to coat first and then drill holes, or drill holes first and then coat. If drilling holes first and then coat, the coating roller will come into contact with the holes on the glass surface after drilling, leaving three hole marks on the subsequent coating surface, which will become a product defect.

[0004] To avoid this problem, a technical solution of coating first and then drilling is adopted. However, during the laser drilling process, the uneven surface of the glass will cause diffuse reflection of the laser beam, which will reduce the energy concentration of the laser and thus affect the quality and efficiency of the drilling. In the original back glass drilling process, water is usually sprayed on the glass surface to solve the problem of uneven glass surface. However, when it is applied to the coated surface, it will damage the film surface and reduce the light transmittance of the film surface, thereby affecting the photoelectric conversion efficiency of the photovoltaic module.

[0005] Therefore, a water-replacing matching fluid for coated glass laser drilling is provided during the preparation process and applied to the coated glass surface. This matching fluid is non-destructive, non-flammable, and completely evaporates after tempering. This solution addresses diffuse reflection of the laser beam caused by uneven glass surfaces during drilling, ensuring drilling accuracy and surface quality.

[0006] However, the matching liquid that flows freely during the drilling operation and the small glass discs that are cut fall randomly, which both cause waste and pollute the production environment, increase production costs, and increase the labor intensity of workers. Utility Model Content

[0007] The present invention aims to overcome the deficiencies in the prior art and provide a matching liquid recovery device for a glass laser drilling machine.

[0008] This application provides the following technical solutions:

[0009] A matching liquid recovery device for a glass laser drilling machine includes a longitudinal lifting frame provided above a glass holder of the glass laser drilling machine, and is characterized in that: a group of laser beam protective covers are provided on the lifting frame, a laser probe and a matching liquid spray pipe are provided inside the laser beam protective covers, a matching liquid recovery device is provided below the glass holder, the matching liquid recovery device includes a recovery tank body, a group of pipelines distributed corresponding to the laser beam protective covers are connected to the recovery tank body, a group of filter layers and a recovery pipe are provided inside the recovery tank body, and one end of the recovery pipe is connected to the matching liquid supply assembly of the glass laser drilling machine.

[0010] On the basis of the above technical solutions, the following further technical solutions can be provided:

[0011] An exhaust pipe is connected to the recovery tank body to form a slightly negative pressure environment inside the recovery tank body.

[0012] The filter layer comprises an upper grid, a filter core layer and a lower grid which are sequentially distributed from top to bottom.

[0013] The set of filtering layers consists of two layers, which are arranged in parallel in the horizontal direction, with the upper and lower layers. The filtration apertures decrease in sequence from top to bottom.

[0014] A sealing ring is provided at the open end of the laser protection cover.

[0015] An openable cleaning door is provided on the upper part of the recovery tank body.

[0016] A bell-shaped liquid receiving port is provided at the liquid inlet end of the pipeline.

[0017] Utility model advantages:

[0018] The utility model has the advantages of simple structure, convenient use, and can recycle the matching liquid to ensure the safety of the punching process, high punching speed, high efficiency, good economic benefits, improved production environment, reduced labor and reduced production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the laser probe assembly and recovery device of the punching machine in the utility model;

[0020] Figure 2 yes Figure 1 A-direction enlarged view;

[0021] Figure 3 yes Figure 1 B-direction enlarged view. DETAILED DESCRIPTION

[0022] like Figure 1-3 As shown, a matching liquid recovery device for a glass laser drilling machine includes a longitudinal lifting frame 1 provided above the glass bracket of the glass laser drilling machine, a set of laser beam protection covers 6 provided on the lifting frame 1, and a sealing ring 6a provided at the open end of the laser protection cover 6.

[0023] Each laser protective cover 6 is connected to a liquid spraying device (not shown) via a liquid spraying pipe 7 and a laser probe 4. The liquid spraying pipe sprays a laser drilling matching liquid 8 onto the coated glass surface 2 within the laser protective cover, forming a liquid layer on the coated glass surface. The laser probe 4 then outputs a laser beam 5 to cut the twice-coated glass 1. The liquid spraying device is a conventional structure comprising a liquid tank, a pump, and corresponding piping, and is not described in detail here.

[0024] A matching liquid recovery device 10 is provided below the glass holder. The matching liquid recovery device 10 includes a recovery tank 10a.

[0025] The recovery tank 10a is connected in parallel with a group of pipes 10b distributed corresponding to the protective cover 6 of the laser beam. The liquid inlet end of the pipe 10b is located below the glass holder and distributed corresponding to the protective cover 6. The liquid inlet end is connected to a trumpet-shaped liquid receiving port 10f with an upward opening. The diameter of the liquid receiving port 10f is larger than the diameter of the laser protective cover 6 so that the circular glass pieces cut by the laser and the matching liquid can fall smoothly into the pipe 10b.

[0026] An exhaust pipe 10e is also connected to one side of the top of the recovery tank body 10a, through which a slightly negative pressure environment is formed in the recovery tank body, thereby ensuring that the matching liquid in the pipeline 10b and the small glass discs cut by the laser beam 5 flow more smoothly into the recovery tank body 10a.

[0027] An exhaust pipe 10e is also connected to one side of the top of the recovery tank body 10a, and the exhaust pipe 10e forms a slightly negative pressure environment in the recovery tank body, thereby ensuring that the matching liquid in the pipeline 10b flows into the recovery tank body 10a more smoothly.

[0028] Two filter layers 10c are arranged transversely in the middle of the recovery tank 10a. These layers consist of, from top to bottom, an upper mesh a, a filter core b, and a lower mesh c. The diameters of the pores on the upper and lower meshes and the filter core in the upper filter layer 10c are larger than those in the lower filter layer 10c. The filter layer 10c is a sponge layer.

[0029] A recovery pipe 10d is connected to the bottom of recovery tank 10a. The other end of recovery pipe 10d is connected to a liquid tank in a liquid spraying device (not shown). Matching liquid that enters recovery tank 10a is filtered by upper and lower filter layers 10c before re-entering the liquid spraying device through recovery pipe 10d, allowing the recovered matching liquid to be recycled.

[0030] The falling glass discs 1a are intercepted by the upper mesh a of the upper filter layer 10c located in the upper middle portion of the recovery tank 10a. An openable cleaning door 10g is installed on one side of the upper portion of the recovery tank 10a to facilitate cleaning of the glass discs cut by the laser beam 5.

Claims

1. A matching liquid recovery device for a glass laser drilling machine, comprising a longitudinal lifting frame (1) provided above a glass support of the glass laser drilling machine, characterized in that: A group of laser beam protection covers (6) are provided on the lifting frame (1), a laser probe (4) and a matching liquid spray pipe (7) are provided inside the laser beam protection cover (6), a matching liquid recovery device (10) is provided below the glass bracket, the matching liquid recovery device (10) comprises a recovery tank body (10a), a group of pipelines (10b) distributed corresponding to the laser beam protection cover (6) are connected to the recovery tank body (10a), a group of filter layers (10c) and a recovery pipe (10d) are provided inside the recovery tank body (10a), and one end of the recovery pipe (10d) is connected to a matching liquid supply component of a glass laser drilling machine.

2. The matching liquid recovery device for a glass laser drilling machine according to claim 1, characterized in that: An exhaust pipe (10e) is connected to the recovery tank body (10a), forming a slightly negative pressure environment inside the recovery tank body.

3. The matching liquid recovery device for a glass laser drilling machine according to claim 1, characterized in that: The filter layer (10c) comprises an upper grid (a), a filter core layer (b) and a lower grid (c) which are sequentially distributed from top to bottom.

4. The matching liquid recovery device for a glass laser drilling machine according to claim 1, characterized in that: The set of filter layers (10c) consists of two layers, which are arranged in parallel horizontally as an upper layer and a lower layer, and the filtration aperture decreases from top to bottom.

5. The matching liquid recovery device for a glass laser drilling machine according to claim 1, characterized in that: A sealing ring (6a) is provided at the open end of the protective cover (6).

6. The matching liquid recovery device for a glass laser drilling machine according to claim 1, characterized in that: An openable cleaning door (10g) is provided on the upper portion of the recovery tank (10a).

7. The matching liquid recovery device for a glass laser drilling machine according to claim 1, characterized in that: A bell-shaped liquid receiving port (10f) is provided at the liquid inlet end of the pipeline (10b).

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