Pad printing machine principle
The principle of pad printing machine is to first use the method of photographic plate making to print the required pattern, make the steel plate into a gravure plate and then transfer it to the printed material through a special silicone printing head, and according to the material of the product, the special ink can be modulated to ensure the quality. First, the design pattern is etched on the printing plate, the etching plate is coated with ink, and then most of the ink is transferred to the printed object through the silicone head.
1. The ink is evenly covered on the steel plate by the brush;
2, the excess ink will be scraped by the scraper steel knife;
3. From the printing head down to the steel plate, the ink in the pattern is picked up;
4, from the printing head shift down to the product will cover the pattern.
How to use pad printing machine, manual pad printing machine use method
1, wipe the oil stains on the steel plate with paper towels first, and then wipe the glue head evenly with paper towels stained with thinner;
2. Suck the oil cup on the steel plate, open the red cover above the oil cup, pour the ink into the oil cup, and then cover the oil cup cover;
3, pull the oil cup up and down, so that the ink and engraved content of uniform contact, but not too strong force, so as to avoid ink leakage;
4, gently dip the content of the engraving with the glue head, print on the product you want to print, and debug the strength and inclination of the glue head.
5, if the pad printing effect is not satisfied, use a paper towel with diluent to erase the pad printing content, re pad printing, satisfied until.
Attached: Manual pad printing machine for more than a week, to use diluent to clean the steel plate, smear oil (cooking oil can also be) wrapped in a plastic bag.
Pad printing machine common faults and maintenance methods
Pad printing machine common faults and maintenance methods flow. If you encounter the following situation, do not panic, first check and test, if it is in line with the following situation, then make relative measures, so that production and processing continue to increase the production efficiency of the industry.
1, the machine can not operate, the control panel without any display
Failure cause: the main power line is not in good contact, the power switch is damaged or the fuse is burned out. The control panel has a display, but the action is once, the red light is not shining, and the machine is stopped
The cause of the failure: ① the stroke is not in place, the proximity switch is not sensed or the proximity switch is damaged; ② Sensing the loose offset of the metal sheet, can not trigger the proximity switch, so that the machine can not execute the next command; ③ The solenoid valve that controls the front and back movement of the printing head is damaged; ④ The circuit board has no DC-12V voltage output to the solenoid valve; ⑤ The IC integrated block is damaged;
2, the control panel has a display, but no action
Fault causes: ① solenoid valve damage; ② The foot switch is damaged; (3) The external air supply source has no air pressure, the air pressure transfer switch is not opened, the pressure indicator is not open, and the gas volume regulating valve is not opened; ④ The machine is stuck and cannot run.
3, the control panel display is chaotic, the indicator does not blink normally
Fault causes: ①IC block damage; ② Control up, down, front, and back four basic actions of the proximity switch, wiring sequence is wrong.
4, the machine does not scrape ink, no scraper action
Fault causes: ① scraping pressure is not enough; ② The stroke is not in place; ③ tap gas pipe is disconnected; ④ The guide shaft of the cylinder is bitten.
5, printing head without downprinting action
Fault causes: ① control key damage ② proximity switch damage ③ its solenoid valve damage ④ cylinder guide shaft bite 5, IC integrated block damage
6, the machine does not work smoothly
The cause of the failure: ① Gas channeling inside the cylinder can be obviously felt by the solenoid valve; ② guide shaft without lubricating oil; ③ insufficient air volume, or air volume adjustment is too small; Solenoid valve conversion is poor, generally due to its core shaft has foreign matter or too dirty, at this time should remove the solenoid valve, blow clean with compressed air, coated with grease, should pay attention to the sealing rubber ring can not be missing or damaged. If there is still no action after cleaning, it may be improper installation or poor coil wiring.
7, the machine running vibration and impact sound
The cause of the failure: ① the buffer oil top is weak, and it does not play the role of buffering and damping. Needs to be replaced. ② The air pressure is too large. Suitable air pressure 4.5-6 bar.
8. Start running, but don't stop
Fault cause: ① The start button is stuck. ② The foot switch is usually closed and not released after operation.
Pad printing machine routine maintenance
Ensure that each shift must ① drain the water filter; ② Check the lubrication of the sliding guide rail; ③ Check before starting, there is no foreign body blockage in the running section of the machine; ④ Cleaning of machine surface.
Ensure that the whole machine must be lubricated and oiled every week; ② Inspection and fastening of mechanical parts; ③ Check whether the metal sensor and proximity switch are loose and offset.
Ensure that the whole machine must be lubricated and oiled every week; ② Inspection and fastening of mechanical parts; ③ Check whether the metal sensor and proximity switch are loose and offset.
Use tips: moderate pressure of the scraper, that is, as little pressure as possible to achieve the best scraping effect. Extend the service life of steel plates and blades.
