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Practical knowledge of laser engraving machine

Practical knowledge of laser engraving machine

  • Categories:Industry News
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  • Time of issue:2020-09-17
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(Summary description)Installation: The installation fulcrum of the laser tube of the laser engraving machine should be reasonable, and the fulcrum should be at 1/4 of the laser tube, otherwise the laser tube's spot pattern will be deteriorated, and some of the spots will become several points after working for a period of time, which will cause the laser power to drop and fail to meet the requirements

Practical knowledge of laser engraving machine

(Summary description)Installation: The installation fulcrum of the laser tube of the laser engraving machine should be reasonable, and the fulcrum should be at 1/4 of the laser tube, otherwise the laser tube's spot pattern will be deteriorated, and some of the spots will become several points after working for a period of time, which will cause the laser power to drop and fail to meet the requirements

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-09-17
  • Views:0
Information

Practical knowledge of laser engraving machine:

Installation: The installation fulcrum of the laser tube of the laser engraving machine should be reasonable, and the fulcrum should be at 1/4 of the laser tube, otherwise the laser tube's spot pattern will be deteriorated, and some of the spots will become several points after working for a period of time, which will cause the laser power to drop and fail to meet the requirements; The cooling system should be grounded, the water tank and water circuit should be cleaned frequently, and the control points of the cooling temperature control water tank should be reasonable. Otherwise, the laser tube will be damaged and the condensation power will be reduced, the cold water head of the tube will fall off, the life will be greatly shortened, and sometimes it will not work.

Cleaning: Check and clean the water protection. The cooling water often cannot be flushed. The water protection float shape or the water protection float switch is not reset. The cooling water quality should be good. The aluminum oxide of the water nozzle is too serious. After using for a period of time, the water pump and water pipe and water protection should be cleaned regularly. Otherwise, the laser tube will burst or the cold water head will fall off; the suction device should be checked and cleaned, and the fan duct should be cleaned. Otherwise, the smoke and dust will not be discharged, which will seriously pollute the lens and laser tube, and make the mechanical and electronic components easy to oxidize. The light path system must be cleaned correctly, otherwise the laser tube will be prematurely aged and broken; clean the moving parts of the machine, so that the machine can always be in good working condition.

Laser tube: The laser tube is made of glass and is fragile. When installing and using, avoid local stress; during the working process of the laser tube, no scale should be opened in the cooling water pipe to avoid blockage of the cooling water and poor heat dissipation effect. When the scale appears, use 20% dilute hydrochloric acid to clean the cooling tube, and then use it after removing the scale; the two supporting points of the laser tube should be 1/4 of the total length of the two ends of the laser tube or at the marked point, and ensure that the cooling water flow is 2L ~4L/min, otherwise it will cause mode skipping, resulting in a decrease in laser power; it is recommended that customers choose special cooling equipment for laser equipment, which can extend the life of the laser tube to the limit.

Inspection: Check the focus lens and mirror of the laser engraving machine. After working for a while, the frame will heat up, and the surface of the lens will become discolored and rusty; peeling and cracking are all objects to be replaced, especially many customers use atmospheric pumps and air compressors. Water accumulates quickly on the focusing lens; the power grid of the power grid is matched, and the power distribution and contact points of each part of the whole device should be good; the honeycomb bottom plate should be flat, otherwise the focal length will be inconsistent and some places will not be cut, so the light intensity should be increased. , It will also cause the aging of the laser tube.

Environment: The working environment of the machine is too bad, the indoor temperature is higher than 40℃, lower than 0℃, too much dust, serious air pollution, so that the machine is severely damaged, faults continue to rise, and various electrical accessories are prone to problems in a humid environment. When working in an environment where the temperature does not exceed 30℃, please turn on the cooling water first, adopt the principle of low inlet and high outlet, adjust the position of the outlet pipe to ensure that the cooling water is full of the laser tube, and there are no bubbles in the tube, and then turn on the power.

Intensity: The working current of the laser tube should be reasonable, and it cannot work at the light intensity of 900~100 for a long time. The heat dissipation of the laser power supply should be unobstructed, otherwise the temperature rises when the operating current is adjusted to 50% or more, which will increase the failure rate of the laser power supply.

Machine assembly and disassembly: When installing or disassembling the laser engraving machine, the first thing you should do is to observe the structure of each transmission part of the machine and the law of its movement. Pay attention to its concentricity, verticality, and Parallelism and straightness are to listen to the machine after installation, disassembly, and repair. For safety reasons, first test the machine with your hands, and then turn it on after nothing is abnormal. Listen carefully to each sound made by the machine. The whole machine has low noise and no noise. , Otherwise, it is abnormal and must be re-installed and debugged.

Motion system: After replacing the guide rail, pay attention to its parallelism. When sliding by hand, be flexible and free. At one point in the motion of the guide rail, you must ensure that it can move in a straight line at a uniform speed. When disassembling the slider, you must first understand its structure. It is composed of many decimal point steel balls. Improper installation method will cause it to fall off. Regularly clean and replace the butter on the screw rod, and then use anti-rust oil to clean the screw rod. Before cleaning, use the optical shaft and pulley under the screw rod. The cloth is separated to prevent the dirt falling during cleaning from damaging the optical axis and the metal pulley. Clean the connecting parts and the screws that can be touched, and coat the surface with engine oil, so that it will not affect the disassembly and assembly due to rust.

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