Machine using cautions and problem shootings

1. Machine Security Cautions

With laser cutting and engraving machine used increasingly widespread, laser cutting and engraving machine in the processing industry is no longer a high-tech equipment, the requirements of the operator who is not so strict requirements, novice can in a short time after training posts, but safety knowledge laser cutting machine is also very important, in the course of the following should be noted:

1) The operator must be trained to be familiar with the machine structure, before taking a post performance and operating system-related knowledge.

2) must comply with safety rules laser cutting machine, laser startup program starts in strict accordance with the laser.

3) before the job wearing labor protection products, in the vicinity of the laser beam comply wearing protective glasses.

4) laser cutting engraving machine must be prepared to put near the fire extinguisher, the need to turn off the laser or the shutter when the machine is not working; do not put paper, cloth or other flammable items in the unprotected range of the laser beam.

5) After a day before the job should be manually turned on low speed X, Y direction starting machine, check to make sure if there are unusual circumstances.

6) work process, the need to observe the operation of the machine, in order to avoid cutting machine out of the effective stroke range or two collision accident.

7) If unsure whether a material can be laser irradiation or heating, not directly for processing, in order to avoid potentially dangerous fumes and vapors.

8) When the machine is turned on, the operator will be allowed to leave their posts or Trustee custody, if you must leave their posts, should be shut down and power off.

9) When machine in the process, such as abnormal, should be immediately shut down, and troubleshooting.

10) When machine, bed and surrounding area must be kept clean, orderly, and free of oil, according to the maintenance requirements regularly clean the tank, lenses, rails, guide wheels; processing materials, parts, and other regulations required scrap pile.

11) When machine maintenance, high-pressure safety regulations must be observed. Operating 4 hours per week or for maintenance; every 1000 hours of operation or every six months for maintenance, must be carried out in accordance with the relevant rules and procedures.

2. Using notice of laser tube

1) The laser tube at two support points need to 1/4 of the total length of the laser tube to ensure the flow of cooling water in the 2L-4L / min; otherwise ineffective, can cause mode hopping, several points cause varying spot power down; cooling water back in the tank outlet must be covered by water, cooling water will fill otherwise dissatisfied phenomena occurring within the laser tube turned off every time.

2) laser tube glass, fragile, when you install and use, must be handled with care, to avoid local force.

3)  In the debugging process by adjusting laser or rotary laser anchor position to achieve the best output effect, and then the laser is fixed.

4) must be turned on using the machine cooling water, using the principle of low prices, adjusting Machine using cautions and problem shootings the position of the outlet pipe to ensure full cooling water cooling, there can not bubble tube, and then turn on the power. Requirements: cooling water must be soft (distilled or purified water), and we should always pay attention to the cooling water temperature, water temperature should be controlled in the range of 25 -30 , not too high or too low, especially in summer, when the water temperature is too high, cooling water should be replaced or break down over time: Yan cold area of the cooling water may not freeze, especially after laser shutdown, not allow the cooling water retention in the laser tube, so as not to cause cooling water freezes burst. (Required special attention are: the use of alternating current users, the cooling water tank must be grounded).

5) You must pay attention to protect the laser tube output, avoiding the process (including debugging process via optical) smoke sputtered to produce an output port surface, to prevent contamination of surface output port, otherwise it will create success rate has dropped, often available cotton or silk cloth dipped in ethanol and gently wipe the surface of the output port.

6) Care must be taken: Avoid dust accumulation around the high-voltage electrode, to keep dry, high-pressure metal farther away from the end as much as possible, to prevent high-pressure discharge ignition.

7) The laser tube during use, can not have scale formation in the condenser, so as to avoid clogging of the cooling water, the cooling effect deteriorates. Once found, 20 percent of the available cooling dilute hydrochloric acid wash, remove scale.

8) Note the use of the laser tube, laser energy saving as possible, the best operating point of the laser tube current of 16 mA.

3. Problem and Solutions

Problem1.: Laser light, but not deep enough carving

You can check the following items:

1. Check the fulcrum of the laser tube is correct (preferably at 1/4),

2. Look at the light intensity setting is too small,

3. Check whether the optical path offset

4. The focal length is adjusted correctly

5. Is ytterbium sheet surface scratches, dust or dirt

6. Does the cooling water flow stream pressure is normal.

Problem2: Luminous

for a moment not only deepTo solve this problem, do the following checks:

1. Check the fulcrum of the laser tube is correct (preferably at 1/4),

2. The cooling water temperature is too high, more than 30 degrees,

3. The lens is fever

4. Does the cooling water flow stream pressure is normal.

Problem3: Laser tube rupture, water shedding head

1. Check if there is a light-emitting laser tube, water protection if there is damage, light is subject to the control of water protection (when the water through the light, does not emit light when water barrier)

2. The water temperature is normal, normal temperature between 25 -30 , in strict cold region must prevent the cooling water freezes, after the machine stops working, must be cooled laser tube clean and clear water, you can not let the cooling water retention in the laser tube.

3. Check the water pressure is normal, the flow direction must be kept low prices.

4. Check that there are no water pipes will play split phenomenon.

5. Are there checks the laser tube inside the bubble, laser tube can not have bubbles.

6. If you are normal, you can judge after examination may be more than 1-5 laser tube itself.

Problem4: Laser cutting and engraving machine engraved garbled how to do?

We use laser cutting and engraving machine engraved chaos often encountered problems, how do we deal with it, cause there are many aspects,

1) The computer may not operate correctly;

2) file editing files may not exist;

3) target selection may exceed the layout;

4) the reasons for the encryption card may damage the encryption card, or does not match with the

software;

5) the ground is not well connected;

6) may interfere with the surrounding magnetic field;

7) mechanical system parameter settings may cause errors;

8) limit switches (optical coupling) induced iron may be installed unreasonable, limit switch sensing

error;

9) limit switches (optical coupling) may not signal cable is not connected;

10) limit switches (optical coupling) may be damaged and need replacing;

Problem5: How to deal with no laser light

We use laser laser machine laser head often encountered no light, how is this going on? No light at boot

1) Check the laser power switch is turned on;

2) Check the chiller is open, view chiller light signals, control signals, water protection signal is

normal;

3) Check the laser tube is normal light; normal pink light, low light (violet) is abnormal,

4) bolt to check whether there is water through the laser tube, water flow is normal

5) Check the laser light path is normal, according to the light to see if the laser tube light, bright and

if the laser tube laser head is still not out of the light, then the light path problem.

6) Check whether the signal from the laser power, the light, the light is laser tube and laser power were normal.

7) turn the laser power supply fan does not turn, if you do not turn, you need to replace the power

8) Check the machine control panel, keypad lights are normal, the power is correct.

9) Check that the computer software parameters are set correctly

10) Check the voltage is less than 200V.

Problem6: laser head no laser light suddenly

1) Is there an alarm chiller

- Alarm: behind the tank inlet connection with a pipe, outlet, water electricity, to see whether the alarm: If an alarm, indicating that the tank is broken; if not alarm, it is possible to laser tube water does not flow, check whether the curved pipe fold down to something or whether there is debris in the water tank, or replace the water inside the tank).

- Not reported: Check that the fan has a rotating laser power, laser power supply fan rotation, laser power supply wire shorting pins 2 and 3, the laser tube is light, if light, it is possible motion control card above the line loose or motion control card loss, the need to replace it; no light, then the laser

power is broken. (There are rare cases may be laser tube damage) (checking whether the high-side laser tube ignition phenomenon, sparking easy to laser power electronic components and boards burned), laser power supply fan is not operating, the laser power supply with a multimeter test 220V port, whether electricity, electrical energy, then the laser power is bad; there is no electricity, the need for further examination of laser power switch and wiring.