CN113399847A - Laser drilling device for photovoltaic glass and control method thereof - Google Patents
Laser drilling device for photovoltaic glass and control method thereof Download PDFInfo
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- CN113399847A CN113399847A CN202110729780.3A CN202110729780A CN113399847A CN 113399847 A CN113399847 A CN 113399847A CN 202110729780 A CN202110729780 A CN 202110729780A CN 113399847 A CN113399847 A CN 113399847A
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- 239000011521 glass Substances 0.000 title claims abstract description 125
- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 description 16
- 239000005304 optical glass Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 239000012752 auxiliary agent Substances 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/146—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/54—Glass
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser drilling device for photovoltaic glass and a control method thereof, wherein the laser drilling device comprises: a photovoltaic glass plate is arranged on a roller way of the glass conveyor; a position detector is arranged on one side of the glass conveyor and used for positioning a to-be-punched area of the photovoltaic glass plate; the laser generator is arranged on one side of the laser support, and the laser head is arranged on the other side of the laser support; the laser bracket is connected with the longitudinal moving mechanism; the liquid outlet valve is connected with the water storage tank and is connected below the laser bracket through the position adjusting piece; the liquid outlet valve moves along with the laser bracket; the control system is connected with the liquid outlet valve, the position detector, the laser generator and the longitudinal moving mechanism. The position detector is arranged to determine the position of the photovoltaic glass plate, and information is provided to the laser support to complete the positioning of the laser head on the photovoltaic glass plate; go out the liquid valve and spout the water film to photovoltaic glass board afterwards, cover the specific decorative pattern of photovoltaic glass board through the water film and form smooth surface, avoid laser drilling's scattering and refraction.
Description
Technical Field
The invention relates to the technical field of photovoltaic glass processing, in particular to a laser drilling device and a control method for photovoltaic glass.
Background
At present, the front and back surfaces of the panel and back plate packaging glass of the photovoltaic solar cell module are mostly made of 2.5mm and 2mm glass, the 1.5mm thinnest photovoltaic glass in the world is successfully produced in a mass mode in China, and continuous and stable mass production is realized. When photovoltaic glass board thickness is less than 3.2mm, the glass board rigidity is not enough, and the atress is out of shape easily, leads to traditional mechanical drilling yields to be low, and processing speed is slow, can't satisfy the actual production demand. The laser drilling is non-contact drilling, the glass plate cannot deform during drilling, the drilling speed is high, the efficiency is high, and the on-line and automation on a production line are easy to realize. When laser drilling is carried out on a production line, laser used for laser processing can be refracted and scattered through glass due to the fact that the photovoltaic glass plate is not a smooth plane but a suede with specific patterns, and laser cannot be focused and processed. In order to improve the condition that laser cannot be focused, a processing aid needs to be sprayed on the processing part of the photovoltaic glass, so that the drilling quality is ensured, and the production efficiency is improved.
In prior art CN110303242A, a method for laser cutting an optical glass microlens assisted by an index matching fluid is disclosed, which comprises: step one, selecting a suitable refractive index matching fluid 01 according to the material of the optical glass micro lens 02 to be cut, wherein the refractive index of the adopted refractive index matching fluid 01 is the same as or similar to that of the material of the optical glass micro lens 02 as far as possible. The device required in the technology is shown in fig. 2, a laser 05 is connected with an optical fiber coupler 07 through an optical fiber 06, the optical fiber coupler 07 is connected with a laser beam expander 08, a focusing lens 09 is coaxially arranged right below the laser beam expander 08, and the focusing lens 09 can move up and down; an opening container 03 is arranged below the focusing mirror 09, and the opening container 03 can move horizontally. Specifically, the focusing mirror 09 is connected with a Z-axis motion mechanism 010, and the open container 03 is fixedly arranged on the three-dimensional motion platform 011; the Z-axis motion mechanism 010 and the three-dimensional motion platform 011 are respectively and electrically connected with a controller.
And step two, selecting a proper depth of the refractive index matching fluid 1 according to the integral structure of the optical glass micro-lens 02 to be cut and separated, and pouring the refractive index matching fluid 01 into the open container 3. Wherein the refractive index matching fluid 01 must be higher than the overall structure/surface microstructure of the material, and the refractive index matching fluid 01 and the optical glass microlens 02 are combined into a whole. Thereby transforming the optical glass micro lens 02 with a special structure into an optical glass micro lens-refractive index matching fluid combination whole body with a plane structure. Meanwhile, the depth of the refractive index matching fluid 01 cannot be too high, so that the refractive index matching fluid 01 is prevented from absorbing too high laser energy.
And step three, starting laser equipment, adopting continuous/pulse laser beams 04, enabling a laser focus 12 to be incident into the material of the optical glass micro-lens 2, and enabling the material to absorb laser energy, so that a high-temperature area is generated in the optical glass micro-lens 02. As the laser focal point 012 moves, the heating effect of the laser focal point 012 will generate a thermal contraction effect of thermal expansion inside the material, thereby generating a thermal tensile stress exceeding the tensile strength threshold of the material, thereby generating a through crack on the optical glass microlens 02 and propagating forward, thereby completing the cutting separation.
However, this patent works only on a small-sized microlens glass, and as can be seen from fig. 1, the optical glass microlenses 02 are substantially immersed in the index matching fluid 01, resulting in the need to waste a large amount of the index matching fluid 01, and the need to prepare an open container 03 of the same size in the case of a large-sized glass, resulting in an increase in production cost and a complicated process.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, an object of the present invention is to provide a laser drilling apparatus for photovoltaic glass, which increases the drilling efficiency of large-sized photovoltaic glass, reduces and improves the refraction and scattering of processing laser by a photovoltaic glass plate, reduces glass edge breakage during drilling processing, and solves the problems of increased production cost and complicated process in the prior art by spraying a water assistant on a processing portion of a glass plate during drilling.
To achieve the above and other related objects, the present invention provides a laser drilling apparatus for photovoltaic glass, comprising:
the photovoltaic glass plate is arranged on a roller way of the glass conveyor; a position detector is arranged on one side of the glass conveyor and used for positioning the area to be punched of the photovoltaic glass plate;
the laser generator is arranged on one side of the laser support, and the laser head is arranged on the other side of the laser support; the laser bracket is connected with the longitudinal moving mechanism;
the liquid outlet valve is connected with the water storage tank and is connected below the laser bracket through a position adjusting piece; the liquid outlet valve moves along with the laser bracket;
and the control system is connected with the liquid outlet valve, the position detector, the laser generator and the longitudinal moving mechanism.
Preferably, the method comprises the following steps: the in-place sensor is arranged at the drill hole of the glass conveyor; the in-place sensor is connected with the control system.
Preferably, the position detector is a visual detection device, and the visual detection device positions the photovoltaic glass plate at the position of the roller way and positions the region to be perforated at the position of the roller way.
Preferably, the method comprises the following steps: the dust collection assembly is arranged on one side of the laser bracket; the dust collection assembly is connected with the control system.
Preferably, the position adjusting piece is a fixing plate, and a vertical waist-shaped hole is formed in the fixing plate; the middle part of the liquid outlet valve is connected with the waist-shaped hole through a fastening piece.
A method of operating a laser drilling apparatus for photovoltaic glass comprising a laser drilling apparatus for photovoltaic glass as claimed in claims 1 to 5, the method comprising:
the method comprises the following steps that firstly, a position detector detects the longitudinal position of the photovoltaic glass plate, and the position detector detects the longitudinal position of a to-be-punched area; the position detector transmits longitudinal position information to the controller, and the controller controls the longitudinal moving mechanism to move the laser support to align the laser head to the area to be punched;
the glass conveyor conveys the photovoltaic glass plate to a drill hole, the in-place sensor detects the photovoltaic glass plate and transmits an in-place signal to the controller; the controller controls the liquid outlet valve to act, and water in the water storage tank is pressed into the liquid outlet valve;
thirdly, the controller controls the liquid outlet valve to spray water to the area to be perforated to form a water film so as to keep the area to be perforated horizontally and smoothly;
and fourthly, the laser head punches the area to be punched to form the required hole.
Preferably, the controller controls the on-off time of the liquid outlet valve so as to adjust the thickness and size of the water film.
As described above, the laser drilling device for photovoltaic glass of the present invention has the following beneficial effects:
the photovoltaic glass is conveyed by the glass conveyor, so that the photovoltaic glass is transferred among the working procedures. According to the invention, the position detector is arranged, so that the position of the photovoltaic glass plate can be determined, information is provided to the laser support, and the positioning of the laser head on the photovoltaic glass plate is completed; then, a liquid outlet valve sprays a water film on the photovoltaic glass plate, and the water film covers the specific patterns of the photovoltaic glass plate to form a smooth surface, so that scattering and refraction during laser drilling are avoided; in addition, the spraying amount of water as an auxiliary agent can be controlled by adjusting the on-off time of the liquid outlet valve, so that the thickness and the size of a water film sprayed on the photovoltaic glass plate are controlled. In addition, the water auxiliary agent is used, so that any expensive organic solvent is not required to be added, the production cost can be reduced, and the environmental pollution caused by the organic solvent and the toxic damage to production operators can be avoided; in addition, the photovoltaic glass plate is drilled by using water as an auxiliary agent, and the viscosity of the water is far lower than that of the organic solvent, so that glass fragments generated by drilling are not easy to stick to the glass plate, and the glass fragments are easier to fall naturally. Meanwhile, the workload of polluting organic solvent on the subsequent glass plate cleaning is also reduced.
Drawings
FIG. 1 is a schematic diagram of an optical glass microlens and an index matching fluid of a prior art index matching fluid assisted laser cutting method for the optical glass microlens;
FIG. 2 is a schematic diagram of a three-dimensional motion platform of a refractive index matching fluid assisted optical glass microlens laser cutting method in the prior art;
FIG. 3 is a perspective view of a laser drilling device for photovoltaic glass according to the present invention;
FIG. 4 is a schematic diagram of a laser generator, a laser head and a liquid outlet valve of the laser drilling device for photovoltaic glass;
fig. 5 is an enlarged view of a of fig. 4.
Description of the reference numerals
Existing
01 refractive index matching fluid
010Z-axis movement mechanism
011 three-dimensional motion platform
012 laser focal point
02 optical glass micro-lens
03 opening container
04 laser beam
05 laser
06 optical fiber
07 optical fiber coupler
08 laser beam expander
09 focusing mirror
This application
1 glass conveyer
10 photovoltaic glass panel
101 area to be perforated
11 roller table
21 laser generator
22 laser head
23 laser support
231 longitudinal movement mechanism
3 liquid outlet valve
31 position adjusting member
311 waist-shaped hole
32 fastener
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The transverse direction is the glass feeding direction, and the longitudinal direction is the vertical direction of the glass feeding direction;
as shown in fig. 3, the present invention provides a laser drilling apparatus for photovoltaic glass, comprising:
the photovoltaic glass plate is arranged on a glass conveyor 1, and a roller way 11 of the glass conveyor 1 is provided with the photovoltaic glass plate 10; a position detector is arranged at the starting end of the glass conveyor 1 and used for positioning a to-be-punched area 101 of the photovoltaic glass plate 10;
the laser generator 21 is arranged on one side of the laser support 23, and the laser head 22 is arranged on the other side of the laser support 23; the laser holder 23 is connected to the longitudinal moving mechanism 231;
the liquid outlet valve 3 is connected with the water storage tank, and the liquid outlet valve 3 is connected below the laser bracket 23 through a position adjusting part 31; the liquid outlet valve 3 moves along with the laser bracket 23;
and the control system is connected with the liquid outlet valve 3, the position detector, the laser generator 21 and the longitudinal moving mechanism 231.
According to the invention, a photovoltaic glass plate 10 is arranged on a glass conveyor 1, and a position detector on the glass conveyor 1 is used for detecting and positioning a coordinate position in the longitudinal direction of a region 101 to be punched on the photovoltaic glass plate 10; when the photovoltaic glass plate 10 is conveyed to the lower part of the laser support 23 by the glass conveyor 1, the liquid outlet valve 3 sprays water to the region 101 to be punched, so that a thin water film is formed on the suede of a specific pattern, the water film enables the region 101 to be punched to be restored to a smooth surface, the laser is prevented from being refracted and scattered on the specific pattern, and the processing efficiency is increased. The laser head 22 then performs laser drilling on the region 101 to be drilled, thereby forming holes in the region 101 to be drilled.
Because the laser can penetrate through the water film, the purity of the auxiliary agent needs to be kept by water, and impurities are reduced; in order to avoid the turbidity of water caused by the long-time water in the liquid outlet valve; by adopting the technical scheme, the liquid outlet valve 3 is communicated with the water storage tank only when the photovoltaic glass plate 10 needs to be punched for water use; specifically, an in-place sensor is arranged at the position where the photovoltaic glass plate 10 is drilled (at the laser bracket 23) by the glass conveyor 1; therefore, when the photovoltaic glass plate 10 is conveyed to the transverse position of the glass conveyor 1, the in-place sensor sends an in-place signal to the control system, and the control system controls the liquid outlet valve 3 to be communicated with the water storage tank, so that water is filled in the liquid outlet valve 3.
In order to be able to determine the position of the photovoltaic glass pane 10 on the glass conveyor 1 of large width, a position detector is now used for detection; specifically, the position detector is a visual detection device, and positions the photovoltaic glass plate 10 on the roller way 11 and positions the to-be-punched area 101 of the photovoltaic glass plate 10 on the roller way 11 through the visual detection device.
Because some fine powder can still be formed by laser drilling, the pollution of the fine powder to the working environment and the water film on other areas 101 to be drilled are reduced; a dust collection assembly is arranged at present, and is preferably arranged on one side of the laser bracket and is connected with the control system; thus, after the laser head 22 completes laser drilling, the control system can send a signal to start the dust collection assembly to directly start dust collection, and dust in the area 101 to be drilled after the glass conveyor 1 is started is prevented from flying.
Because the size and thickness of the water film sprayed by the liquid outlet valve 3 are influenced to a certain extent by the distance from the outlet of the liquid outlet valve 3 to the area 101 to be punched, before the liquid outlet valve is used, the angle and position of the liquid outlet valve 3 need to be adjusted in advance, so that the distance between the liquid outlet valve 3 and the area 101 to be punched is changed; specifically, as shown in fig. 5, a position adjusting member 31 is used to adjust the angle and position of the liquid outlet valve 3; the position adjusting part 31 is a fixing plate, and a vertical waist-shaped hole 311 is arranged on the fixing plate; the middle part of the liquid outlet valve 3 is connected to the kidney-shaped hole 311 through a fastener 32, so that the fixing point of the liquid outlet valve 3 and the fixing plate 32 can be adjusted up and down within the range of the kidney-shaped hole 311, and the pitch angle of the liquid outlet valve 3 can be rotated.
In addition to the above embodiments, the laser drilling device for photovoltaic glass of the present invention further includes the following working methods:
firstly, placing a photovoltaic glass plate 10 on a glass conveyor 1; the position detector starts to detect the longitudinal position of the photovoltaic glass panel 10 on the glass conveyor 1 and at the same time the position detector will detect the longitudinal position of the area to be perforated 101; the position detector sends the two pieces of longitudinal position information to the controller; the controller controls the longitudinal moving mechanism to move longitudinally, and the laser head 22 can be aligned to the area to be punched 101 after the longitudinal moving mechanism moves;
step two, controlling the glass conveyor 1 to operate so as to convey the photovoltaic glass plate 10 to the transverse position where the laser support 23 is located; the in-place sensor detects the photovoltaic glass plate 10 and transmits in-place information to the control system;
step three, receiving the in-place information, and controlling the liquid outlet valve 3 to spray water to the area to be punched 101 by the control system to form a water film so as to keep the area to be punched 101 horizontal and smooth;
step four, the laser head 22 emits laser to start punching the hole area 101 to be punched; specifically, the laser head 22 uses an ultrashort pulse laser to process the hole region 101 to be punched.
In summary, the photovoltaic glass 10 is conveyed by the glass conveyor 1, so that the photovoltaic glass 1 can be circulated among the processes. According to the invention, the position detector is arranged, so that the position of the photovoltaic glass plate 10 can be determined, information is provided to the laser support 23, and the positioning of the laser head 22 on the photovoltaic glass plate 10 is completed; then, the liquid outlet valve 3 sprays a water film on the photovoltaic glass plate 10, and the water film covers the specific patterns of the photovoltaic glass plate 10 to form a smooth surface, so that scattering and refraction during laser drilling are avoided; finally, the laser head 22 operates to complete the punching of the region to be punched 101. In addition, the photovoltaic glass plate 10 is drilled by adopting water as an auxiliary agent, so that the addition of other substances is reduced, and the production cost can be greatly reduced; adopt water auxiliary agent to carry out photovoltaic glass drilling, can avoid the environmental pollution who causes owing to using organic solvent to and the poisonous injury that produces production operating personnel, and because the viscosity of water is far less than organic solvent's viscosity, the glass piece that the drilling produced is difficult to be stained with the glass board and glues, and the glass piece is changeed in and is dropped naturally, has alleviateed the flow of follow-up washing glass board.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A laser drilling device for photovoltaic glass, comprising:
the photovoltaic glass plate is arranged on a roller way of the glass conveyor; a position detector is arranged on one side of the glass conveyor and used for positioning the area to be punched of the photovoltaic glass plate;
the laser generator is arranged on one side of the laser support, and the laser head is arranged on the other side of the laser support; the laser bracket is connected with the longitudinal moving mechanism;
the liquid outlet valve is connected with the water storage tank and is connected below the laser bracket through a position adjusting piece; the liquid outlet valve moves along with the laser bracket;
and the control system is connected with the liquid outlet valve, the position detector, the laser generator and the longitudinal moving mechanism.
2. The laser drilling device for photovoltaic glass according to claim 1, further comprising: the in-place sensor is arranged at the drill hole of the glass conveyor; the in-place sensor is connected with the control system and used for reminding and controlling the laser support to move to the photovoltaic glass plate.
3. The laser drilling device for photovoltaic glass according to claim 1, wherein the position detector is a visual detection device, and the visual detection device positions the photovoltaic glass plate on the roller way and positions the area to be drilled on the roller way.
4. The laser drilling device for photovoltaic glass according to claim 1, comprising: the dust collection assembly is arranged on one side of the laser bracket; the dust collection assembly is connected with the control system.
5. The laser drilling device for photovoltaic glass according to claim 1, wherein: the position adjusting piece is a fixing plate, and a vertical waist-shaped hole is formed in the fixing plate; the middle part of the liquid outlet valve is connected with the waist-shaped hole through a fastening piece.
6. A control method of a laser drilling device for photovoltaic glass, comprising the laser drilling device for photovoltaic glass of claims 1 to 5, wherein the working method comprises the following steps:
the method comprises the following steps that firstly, a position detector detects the longitudinal position of the photovoltaic glass plate, and the position detector detects the longitudinal position of a to-be-punched area; the position detector transmits longitudinal position information to the control system, and the control system controls the longitudinal moving mechanism to move the laser support to align the laser head to the area to be punched;
conveying the photovoltaic glass plate to a drilling position by the glass conveyor, detecting the photovoltaic glass plate by an in-place sensor, and transmitting an in-place signal to the control system; the control system controls the liquid outlet valve to act, and water in the water storage tank is pressed into the liquid outlet valve;
thirdly, the control system controls the liquid outlet valve to spray water to the area to be perforated to form a water film so as to keep the area to be perforated horizontally and smoothly;
fourthly, the laser head punches the area to be punched to form the required hole.
7. The control method of the laser drilling device for the photovoltaic glass, according to claim 6, wherein: and the control system controls the on-off time of the liquid outlet valve so as to adjust the thickness and size of the water film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110729780.3A CN113399847A (en) | 2021-06-29 | 2021-06-29 | Laser drilling device for photovoltaic glass and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110729780.3A CN113399847A (en) | 2021-06-29 | 2021-06-29 | Laser drilling device for photovoltaic glass and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113399847A true CN113399847A (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110729780.3A Pending CN113399847A (en) | 2021-06-29 | 2021-06-29 | Laser drilling device for photovoltaic glass and control method thereof |
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| CN (1) | CN113399847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20210917 |