CN110405351B - Glass surface laser engraving method - Google Patents

Glass surface laser engraving method Download PDF

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Publication number
CN110405351B
CN110405351B CN201910580797.XA CN201910580797A CN110405351B CN 110405351 B CN110405351 B CN 110405351B CN 201910580797 A CN201910580797 A CN 201910580797A CN 110405351 B CN110405351 B CN 110405351B
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glass
laser head
laser
air
driving mechanism
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CN110405351A (en
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周胜华
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Dongguan Yinfu Glass Co ltd
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Dongguan Taisheng Glass Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/362Laser etching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention provides a glass surface laser engraving method, which comprises the following steps: installing a laser head at the output end of the three-axis driving mechanism; focusing the laser beam emitted by the laser head on the glass surface; a laser beam emitted by the laser head engraves a first groove on the glass surface; the quenching channel continuously sprays cold air to one side of the through hole, the material spraying channel continuously sprays reflective particles to one side of the through hole, and the air pumping chamber continuously pumps air to one side of the through hole; the laser head moves to the position right above the second pre-engraving groove, the quenching channel stops spraying cold air, the material spraying channel stops spraying reflective particles, the air pumping chamber stops pumping air, and the laser beam engraves a second groove on the glass surface; repeating the operations until the carving of all the grooves on the glass surface is completed. The invention provides a glass surface laser engraving method, which can continuously engrave glass without frequently starting and closing a laser head, has high processing efficiency and can effectively prolong the service life of the laser head.

Description

Glass surface laser engraving method
Technical Field
The invention relates to the technical field of glass processing, in particular to a glass surface laser engraving method.
Background
With the rapid development of the building industry, the consumption of glass is more and more. Generally, the glass needs to be carved in the processing process. In the prior art, as shown in fig. 1-2, the grooves engraved in the glass 1 are distributed at different positions on the glass surface, the laser head needs to be closed or the focus of the laser beam needs to be adjusted when each engraving is completed, then the next groove can be engraved, the laser head is easy to damage, the operation is complex, the efficiency is low, and the laser head needs to adjust the focus of the laser beam when being opened every time, so that errors are easily caused, and the accuracy of the grooves is influenced.
Disclosure of Invention
Aiming at the problems, the invention provides a glass surface laser engraving method, which can continuously engrave glass without frequently starting and closing a laser head, has high processing efficiency and can effectively prolong the service life of the laser head.
In order to achieve the purpose, the invention is solved by the following technical scheme:
a glass surface laser engraving method comprises the following steps:
s1, providing glass, and placing the glass on an operation table;
s2, providing a three-axis driving mechanism and a laser head, and installing the laser head at the output end of the three-axis driving mechanism;
s3, providing a light blocking device, wherein the light blocking device is positioned under the laser head and moves synchronously with the laser head, the middle part of the light blocking device is provided with a through hole which is vertically communicated and is used for laser beams to pass through, the left side of the through hole is connected with a quenching channel and a material spraying channel, and the right side of the through hole is connected with an air pumping chamber;
s4, adjusting the height of the laser head according to the thickness of the glass and the engraving depth, so that the laser beam emitted by the laser head focuses on the surface of the glass;
s5, starting the three-axis driving mechanism and the laser head, and engraving a first groove on the glass surface by the laser beam emitted by the laser head;
s6 the quenching channel continuously sprays cold air to one side of the through hole, the material spraying channel continuously sprays reflective particles to one side of the through hole, and the air extraction chamber continuously extracts air to one side of the through hole;
s7 moving the laser head to the position right above the second pre-engraved groove, stopping spraying cold air by the quenching channel, stopping spraying reflective particles by the material spraying channel, stopping air extraction by the air extraction chamber, and engraving a second groove on the glass surface by the laser beam;
s8 repeating S6-S7 until the carving of all grooves on the glass surface is completed.
Specifically, the reflective particles are diffuse reflective surfaces.
Specifically, the reflective particles are composed of an alumina carrier and glass microsphere reflective powder coated on the surface of the alumina carrier.
Specifically, the particle size of the alumina carrier is 0.2-0.5 mm, and the particle size of the glass bead reflective powder is 0.005-0.008 mm.
Specifically, triaxial actuating mechanism includes x axle actuating mechanism, y axle actuating mechanism, z axle actuating mechanism is used for the adjustment the height of laser head, x axle actuating mechanism, y axle actuating mechanism are used for the moving path of cooperation control laser head.
Specifically, the quenching channel has two, is located respectively spout material passageway upper and lower both ends, the quenching channel outside is connected with refrigeration plant, spout the material passageway outside and be connected with the material equipment that spouts that is used for spouting reflection of light particle, the extraction chamber outside is connected with the aspiration pump.
Specifically, the junction of the air pumping chamber and the air pumping pump is further provided with a filter screen, the reflective particles are isolated by the filter screen and stored in the air pumping chamber during air pumping, and the reflective particles in the air pumping chamber can be recycled.
Specifically, the temperature of the cold air is 0-5 ℃.
The invention has the beneficial effects that:
according to the glass surface laser engraving method, the light blocking device is additionally arranged, when the position change engraving is needed in the engraving process, the material spraying channel continuously sprays the reflective particles to one side of the through hole, the surfaces of the reflective particles are diffuse reflection surfaces, most light rays of laser beams can be blocked and reflected, and the laser beams are prevented from being focused on the glass surface to be engraved, so that the positions, which do not need to be engraved, of the glass surface are protected, the processing efficiency is high, the laser head does not need to be started and closed frequently, and the service life of the laser head can be effectively prolonged.
Drawings
FIG. 1 is a schematic view of a glass structure having a plurality of grooves.
FIG. 2 is a diagram of a processing path of a plurality of grooves of glass.
FIG. 3 is a schematic diagram of a glass processing apparatus according to the present invention.
Fig. 4 is a schematic structural diagram of a light blocking device according to the present invention.
Fig. 5 is a schematic structural view of the light-reflecting particles of the present invention.
The reference signs are: glass 1, a three-axis driving mechanism 2, a laser head 3, a light blocking device 4, a through hole 41, a quenching channel 42, a material spraying channel 43, an air pumping chamber 44, reflective particles 5, an alumina carrier 51, glass bead reflective powder 52 and a filter screen 6.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.
Example 1
As shown in FIGS. 1 to 5: a glass surface laser engraving method comprises the following steps:
s1, providing the glass 1, and placing the glass 1 on an operation table;
s2, providing a three-axis driving mechanism 2 and a laser head 3, and installing the laser head 3 at the output end of the three-axis driving mechanism 2;
s3, providing a light blocking device 4, wherein the light blocking device 4 is positioned under the laser head 3 and moves synchronously with the laser head 3, the middle part of the light blocking device 4 is provided with a through hole 41 which is vertically penetrated and is used for laser beams to pass through, the left side of the through hole 41 is connected with a quenching channel 42 and a material spraying channel 43, and the right side is connected with an air pumping chamber 44;
s4, adjusting the height of the laser head 3 according to the thickness of the glass and the engraving depth, so that the laser beam emitted by the laser head 3 is focused on the surface of the glass 1;
s5, starting the three-axis driving mechanism 2 and the laser head 3, and engraving a first groove on the surface of the glass 1 by the laser beam emitted by the laser head 3;
s6 the quenching channel 42 continuously sprays cold air to one side of the through hole 41, the material spraying channel 43 continuously sprays the reflective particles 5 to one side of the through hole 41, the air pumping chamber 44 continuously pumps air to one side of the through hole 41, the surface of the reflective particles 5 is a diffuse reflection surface, most light rays of the laser beam can be blocked and reflected, the laser beam is prevented from being focused on the glass surface to be carved, and therefore the position of the glass 1 surface which does not need to be carved is protected;
s7, moving the laser head 3 to the position right above the second pre-engraved groove, stopping spraying cold air by the quenching channel 42, stopping spraying the reflective particles 5 by the material spraying channel 43, stopping air extraction by the air extraction chamber 44, and engraving a second groove on the surface of the glass 1 by the laser beam;
s8 repeats the above S6-S7 until the engraving of all the grooves of the glass 1 is completed.
Preferably, the reflective particles 5 have a surface that is a diffuse reflective surface in order to increase the divergence of the reflected light and reduce the probability that the laser beam light is concentrated on the same reflective particles 5 after being reflected.
Preferably, the light reflecting particles 5 are composed of an alumina carrier 51 and glass bead light reflecting powder 52 coated on the surface of the alumina carrier 51, wherein the alumina carrier 51 is a high-hardness material, has a melting point of 2054 ℃, a high melting point and excellent heat resistance, and can ensure that the alumina carrier 51 is not melted under an overheating condition, thereby ensuring that the alumina carrier 51 can be continuously utilized.
Preferably, the particle size of the alumina carrier 51 is 0.2-0.5 mm, the particle size of the glass bead reflective powder 52 is 0.005-0.008 mm, the glass bead reflective powder 52 can be coated on the surface of the alumina carrier 51 through a high-temperature-resistant adhesive, and when part of the glass bead reflective powder 52 is gasified at high temperature in the blocking process, the glass bead reflective powder 52 can be coated on the surface of the alumina carrier 51 again, so that the reuse of the alumina carrier 51 is realized, and the processing cost is reduced.
Preferably, the three-axis driving mechanism 2 includes an x-axis driving mechanism, a y-axis driving mechanism, and a z-axis driving mechanism, the z-axis driving mechanism is used for adjusting the height of the laser head 3, and the x-axis driving mechanism and the y-axis driving mechanism are used for controlling the moving path of the laser head 3 in a matching manner.
Preferably, two quenching channels 42 are provided, and are respectively located at the upper end and the lower end of the material spraying channel 43, the outer side of the quenching channel 42 is connected with a refrigeration device, the outer side of the material spraying channel 43 is connected with a material spraying device for spraying the reflective particles 5, the outer side of the air extraction chamber 44 is connected with an air extraction pump, the air extraction pump continuously extracts air from the through hole 41, on one hand, the air extraction pump is used for collecting the reflective particles 5, the utilization rate of the reflective particles 5 is improved, and on the other hand, the temperature inside the.
Preferably, a filter screen 6 is further disposed at a connection position of the air pumping chamber 44 and the air pump, the reflective particles 5 are isolated by the filter screen 6 and stored in the air pumping chamber 44 during air pumping, and the reflective particles 5 in the air pumping chamber 44 can be recycled.
Preferably, due to the uncertainty of the diffuse reflection process, if a large amount of reflected light is concentrated on the same reflective particles 5, the reflective particles 5 are heated quickly, and in order to avoid the overheating and gasification of the reflective particles 5, the through holes 41 need to be quenched, so as to improve the utilization rate of the reflective particles 5, and further, the temperature of the cold air needs to be set to 0 to 5 ℃.
The above examples only show 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. The glass surface laser engraving method is characterized by comprising the following steps of:
s1, providing glass (1), and placing the glass (1) on an operation table;
s2, providing a three-axis driving mechanism (2) and a laser head (3), and installing the laser head (3) at the output end of the three-axis driving mechanism (2);
s3, providing a light blocking device (4), wherein the light blocking device (4) is located under the laser head (3) and moves synchronously with the laser head (3), the middle part of the light blocking device (4) is provided with a through hole (41) which is vertically penetrated and is used for laser beams to pass through, the left side of the through hole (41) is connected with a quenching channel (42) and a material spraying channel (43), and the right side of the through hole is connected with an air pumping chamber (44);
s4, adjusting the height of the laser head (3) according to the thickness of the glass and the engraving depth, so that the laser beam emitted by the laser head (3) is focused on the surface of the glass (1);
s5, starting the three-axis driving mechanism (2) and the laser head (3), and engraving a first groove on the surface of the glass (1) by a laser beam emitted by the laser head (3);
s6 the quenching channel (42) continuously sprays cold air to one side of the through hole (41), the material spraying channel (43) continuously sprays the reflective particles (5) to one side of the through hole (41), and the air pumping chamber (44) continuously pumps air to one side of the through hole (41);
s7, moving the laser head (3) to the position right above the second pre-engraved groove, stopping spraying cold air by the quenching channel (42), stopping spraying the reflective particles (5) by the material spraying channel (43), stopping air extraction by the air extraction chamber (44), and engraving a second groove on the surface of the glass (1) by the laser beam;
s8 repeating the above S6-S7 until the engraving of all the grooves of the glass (1) is completed.
2. A method for laser engraving of glass surfaces according to claim 1, characterized in that the light reflecting particles (5) are diffuse reflecting surfaces.
3. The method for laser engraving of glass surface according to claim 2, wherein the light reflecting particles (5) are composed of an alumina carrier (51) and glass bead light reflecting powder (52) coated on the surface of the alumina carrier (51).
4. The method for laser engraving of glass surface according to claim 3, wherein the particle size of the alumina carrier (51) is 0.2-0.5 mm, and the particle size of the glass bead reflective powder (52) is 0.005-0.008 mm.
5. The method of claim 1, wherein the three-axis driving mechanism (2) comprises an x-axis driving mechanism, a y-axis driving mechanism and a z-axis driving mechanism, the z-axis driving mechanism is used for adjusting the height of the laser head (3), and the x-axis driving mechanism and the y-axis driving mechanism are used for cooperatively controlling the moving path of the laser head (3).
6. The method for laser engraving of glass surface according to claim 1, wherein there are two quenching channels (42) respectively located at the upper and lower ends of the material spraying channel (43), the cooling device is connected to the outside of the quenching channel (42), the material spraying device for spraying the reflective particles (5) is connected to the outside of the material spraying channel (43), and the air suction pump is connected to the outside of the air suction chamber (44).
7. The method according to claim 6, wherein a filter screen (6) is further disposed at a connection between the air pumping chamber (44) and the air pump, the reflective particles (5) are isolated by the filter screen (6) and stored in the air pumping chamber (44) during air pumping, and the reflective particles (5) in the air pumping chamber (44) can be recycled.
8. The method of claim 1, wherein the temperature of the cooling gas is 0-5 ℃.
CN201910580797.XA 2019-06-29 2019-06-29 Glass surface laser engraving method Active CN110405351B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116618849B (en) * 2023-07-25 2023-09-22 深圳爱司科技有限公司 Glass laser engraving method and device, electronic equipment and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2095420U (en) * 1991-02-23 1992-02-05 高玉兰 Portable Photoelectric Smoke Concentration Detector
US5362594A (en) * 1982-09-27 1994-11-08 Canon Kabushiki Kaisha Imaging process for electrophotography
CN201783760U (en) * 2010-08-26 2011-04-06 华南理工大学 Laser scribing device
CN102990501A (en) * 2011-09-14 2013-03-27 Otec精密研磨有限责任公司 Device and method for processing the surface of workpiece
CN106486582A (en) * 2015-08-24 2017-03-08 斯坦雷电气株式会社 Light-emitting device
CN108145319A (en) * 2018-03-05 2018-06-12 菲尼克斯(南京)智能制造技术工程有限公司 Laser semi-guiding device and laser engraving system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362594A (en) * 1982-09-27 1994-11-08 Canon Kabushiki Kaisha Imaging process for electrophotography
CN2095420U (en) * 1991-02-23 1992-02-05 高玉兰 Portable Photoelectric Smoke Concentration Detector
CN201783760U (en) * 2010-08-26 2011-04-06 华南理工大学 Laser scribing device
CN102990501A (en) * 2011-09-14 2013-03-27 Otec精密研磨有限责任公司 Device and method for processing the surface of workpiece
CN106486582A (en) * 2015-08-24 2017-03-08 斯坦雷电气株式会社 Light-emitting device
CN108145319A (en) * 2018-03-05 2018-06-12 菲尼克斯(南京)智能制造技术工程有限公司 Laser semi-guiding device and laser engraving system

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Effective date of registration: 20230719

Address after: 523000 Building 3, No. 54, Shagang Road, Shatian Town, Dongguan City, Guangdong Province

Patentee after: Dongguan Yinfu Glass Co.,Ltd.

Address before: Qisha village, Shatian Town, Dongguan City, Guangdong Province

Patentee before: DONGGUAN TAISHENG GLASS Co.,Ltd.

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