Before driving, check whether the parts are intact, whether the connecting screws are tightened reliably, whether the movable mechanism is flexible, and add lubricating oil to each lubricating part. After checking and confirming that it is correct, connect the power supply, and then start the machine for idling. If the operation is not normal, stop the machine immediately and check, if everything is normal, you can load the material for production.
Pre-press preparation: After everything runs normally, install the plate cylinder and doctor blade on each printing unit, adjust the doctor mechanism, adjust the minimum value of the required pressure of the ink blade and plate, and keep the ink blade and plate at 50-65 degrees Corner, and then install the printing substrate in the feed section, then unroll the film, pass through each printing unit in turn, roll on the paper tube of the take-up shaft, open the feed tension and take-up tension switch, initially tighten the film, operate Press the rubber roller to make it tight with the plate, adjust the pressure, and add ink to each ink tank. Adjust the temperature of the oven, and then start the printing machine at a low speed, and then adjust the unwinding, feeding, unwinding and unwinding tension during the material walking, so that the tension is appropriate and synchronized with the printing speed.
Startup adjustment:
1) Trial printing at low speed, adjust the compensation roller to align the plate cylinder with the print registration detection mark (mark line), manually align with the left and right cross lines, when the adjustment is accurate, select the suitable waveform, open the automatic registration system.
2) By adjusting the air pressure, adjust the tension and pressure of each impression cylinder to achieve a balanced pressure at both ends, so that the ink is fully transferred on the film to obtain a clear pattern.
3) Adjust the squeegee mechanism, adjust the angle of the squeegee through the adjustment frame, and adjust the pressure of the air pressure to make the squeegee and plate roller pressure suitable, improve the squeegee effect, and make the blank part of the pattern clean without leaving ink. Reduced to the lowest value necessary to reduce excessive wear of the blade edge. After printing, the ink knife should leave the plate roller in time and wipe clean.
4) Properly adjust the tension system of the feeding mechanism and discharging mechanism to make the tension moderate. If the tension is too large, the film will be deformed too much, which will affect the graphic distortion and color registration. After being fully adjusted to achieve the normal, the printing speed can be slowly increased to normal.
Maintenance and maintenance: Before starting the machine, you must fully check the condition and operability of each part of the machine, and flexibility. You must add lubricating grease to each lubricating part. During the operation of the machine, you should always check the running parts. If there is temperature noise and vibration such as bearings In case of abnormal conditions, you should stop the machine immediately and check it, and then turn on the machine after the problem is solved. After shutting down from work, you must immediately pull the brake and power off, clean the machine, lower the ink fountain, release the rubber roller to exit the ink knife, and scrub the plate roller and ink knife with cleaning agent, and add oil at each lubrication point.
The machine casing must be reliably grounded.
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