Picosecond Laser Glass Cutting Machine

Product Description

1.Equipment Introduction

 1. Equipment Introduction

1) Applicable products: Glass

2) Production method: laser cutting 

+ laser splitting + sorting table

3) Cutting laser type: 1064nm Picoseconds

4) Fragment laser type: CO2 laser

5)    Conveyor method: conveyor belt

 2-3. Process and Connection composition

2. Process

The original glass is loaded by a standard glass loading machine and sent to the cutting table via a conveyor belt. The glass is cut into shape by a picosecond laser. The cut products are sent to the splitting table by belts. CO2 The laser breaks the glass into pieces, which are then sent to the sorting table via a belt. Qualified products and split waste are sent to the waste collection box through the dough belt.

3.Glass laser cutting split production line mainly consists of picosecond glass cutting machine, CO2 It consists of a laser glass splitting machine, a sorting table, etc.

4. Picosecond laser glass cutting machine

 Picosecond laser glass cutting machine is mainly composed of left and right column bed  Body, beam, picosecond laser, optical path components, cutting head, Aluminum workbench, lifting belt conveyor, X Axis+Y Axis servo  Motor drive + grating ruler closed loop control, Z Axis motor etc. When the equipment is working, the laser motion control system controls  system XY The axis moves and the laser emits light at the same time, realizing Precision cutting of shaped glass.

5.CO2 Laser glass splitting machine

 CO2 The laser glass splitting machine is mainly composed of the equipment base,  Full conveyor belt, CO2 Laser (two sets), optical path components, Cutting head, X Axis+Y Axis motor, Z Axis motor, etc. When the equipment is working, the split head 1 and lobed head 2 Separately  To process a portion of the glass, two lasers  Work simultaneously and double your efficiency.

 6. Sorting table

The sorting table is mainly composed of the equipment base, the entire conveyor belt, The workbench is at a reasonable height, and the operator Workers can stand on three sides of the workbench to work. If the size is larger, a roller sorting table can also be used.

7. Laser cutting function

1) Laser Cutting System Support PSO Function, the system includes a motion control system that supports two-dimensional PSO Function, with four pulse axis interfaces (including differential pulse output and differential encoder input ), the general output port supports configuration as single-ended pulse output, and the general input port supports Supports configuration as single-ended encoder input

2) PSO Function is used to control the high-speed on/off of the laser, linear interpolation and plane arc interpolation functions are used to complete the processing trajectory, continuous interpolation This function is used to make the speed of multi-segment interpolation continuous and improve the processing efficiency.

 Laser cutting function

3) In the equidistant comparison output mode, no matter how the motion speed and motion trajectory change, the output pulse is always output at a fixed distance, so that the output The schematic diagram is as follows.

4) According to the above principle, with the servo motor, the point spacing accuracy can be ± 0.5um, and the overall shape accuracy can reach 10um. It has good stability and meets the needs of the glass processing industry.

8. Principle of glass laser cutting:

The Bessel focusing head is used for processing. The Bessel beam generates high peak power and high peak power density lasers, which are focused inside the glass , instantly vaporizing the material in the area to produce a vaporization zone, which quickly spreads to the upper and lower surfaces to form cracks , which are composed of countless tiny holes. Cutting section is achieved by external stress fracture. The specific process is as follows:

1) Picosecond laser generation: By using a laser, very short light pulses, i.e. picosecond lasers, are generated. This laser has an extremely high peak Low power and low energy transfer can release huge amounts of energy in a very short period of time.

 

2) Focused laser beam: The picosecond laser beam is focused through optical elements such as lenses or mirrors to achieve an energy density of A high enough level. This will focus the energy and create a very small focal point.

 

3) Photothermal effect: When the focused picosecond laser beam comes into contact with glass, the laser energy is absorbed and converted into heat energy. Due to the short pulse time, the thermal energy is transferred to the glass only in a very short time, thus reducing heat-induced damage and heat diffusion.

 

4) Popping effect: Due to instantaneous thermal expansion, glass will experience a popping effect. This popping effect causes the glass material to produce Small cracks.

 

5) Crack propagation: Subsequently, by moving the laser beam or the workpiece, the crack propagates along the predetermined cutting path. The density allows for rapid crack propagation, resulting in high-speed and accurate cutting.

 

6) In summary, the high energy density picosecond laser beam produces instantaneous thermal expansion and explosion effects in a very short time , thereby The glass is then cut by forming tiny cracks and expanding these cracks. This cutting method has high precision , low heat impact and less It has the advantages of small amount of fragments produced, so it is widely used in the field of glass processing.

9. Advantages of laser glass cutting

1) It has strong processing adaptability and can process materials with high hardness, high melting point and brittle materials . Solve the problem that traditional processing technology cannot cut special shapes The light spot is easy to control and can be focused to the micron level, which can meet the process requirements of fixed-point processing, fine processing, etc.

 

2) High processing efficiency, cutting speed can reach 300mm/s (depending on glass thickness ), which can save materials and simplify work by eliminating the need for subsequent edge grinding. Compared with traditional cutting methods, laser cutting is faster and improves production efficiency.

 

3) High processing precision, laser cutting has extremely high positioning accuracy and repeat positioning accuracy, which can meet the processing requirements of complex graphics and fine parts. Work demand.

4) High yield rate.

 

5) Environmentally friendly, no water, cutting powder or other consumables are required during the processing, and no harmful substances are produced during the cutting process, which complies with green manufacturing 's concept.

6) Save electricity, the power of a single laser is only a few hundred watts, and the power of the entire machine is significantly lower than that of traditional equipment.

 

7) Save labor, no need for manual splitting.

 

10. Application areas of laser cutting glass

 

1) Construction industry: used to make glass products such as doors, windows, curtain walls, partitions, etc. to improve the aesthetics and lighting effects of buildings.

 

2) Home decoration: Make various exquisite glass furniture , lamps, ornaments, etc. to add artistic atmosphere to home life.

 

3) Automobile manufacturing: used for cutting automobile windshields, door glass and other parts to improve automobile safety and aesthetics.

 

4) Electronic products: cutting glass parts for precision electronic products such as mobile phone screens and tablet screens, Meet the requirements of modern electronic products for thin, The pursuit of beauty.

5) Handicraft production: Carve exquisite patterns and texts to create unique works of art and souvenirs.

 

6) Solar industry: Cutting glass substrates for solar panels to improve solar energy utilization efficiency.

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Serial number	project		unit	Laser Cutting
1.	Maximum processing size of glass		mm	2440x3660
2.	Single-blade processing glass thickness		mm	≤19
3.	Glass laser cutting speed		m/min	7-25 (depending on glass thickness)
4.	Processing laser wavelength		nm	1064
5.	Processing laser power		W	80W@20KHz@Burst5
6.	Repetition frequency		KHz	20-40
7.	Pulse Energy		mJ	4
8.	Number of pulses			5-6
9.	Power stability			< 0.5%@24 hours , rms
10.	Laser pulse width		ps	~15
11.	Beam quality			M²≤ 1.3
12.	Operating humidity			<60%RH@25 ℃
13.	Cooling method			Water Cooling
14.	Split laser type			Carbon dioxide laser
15.	CO2Laser wavelength			10.6 um
16.	C02Laser power			300W
17.	Glass laser splitting comprehensive speed		m/min	6-18 (depending on glass thickness)
18.	Environmental resistance	Storage temperature	℃	20~35
19.		Operating temperature	℃	22~30

20.		Ambient humidity		<60%
21.		dust	mg/m³	<0.20
22.		Oil mist		Not allowed
23.		Electromagnetic environment		International secondary standard