The printing factory must do these before and after the lock-up

The annual Spring Festival is coming, and many factories have been shutting down for holidays. Hard work for a year The printing industry finally has the opportunity to go home to have a warm Spring Festival! What preparations should the printing factory do before the holiday? Industry experts remind: Maintaining the equipment well before the year is conducive to the smooth start of the year, but also to discuss Luck!

During the Spring Festival, the printing house usually has a 7-day or 15-day holiday. After the production line is shut down, the staff will clean and maintain the equipment and the site. At this time, not only the water and electricity coal, but more importantly, some details.

In order to ensure the normal operation of the printing machine after the long holiday, to avoid or reduce the occurrence of faults, the work should be carried out before and after the holiday:

First, what should be done before the holiday:

1. Check the status of the low speed operation of the printing machine, and record the reading of the ammeter on the main electric cabinet as the reference standard for judging whether the status of the printing machine is normal when the machine is restarted after the holiday.

2. First wash off the ink on the water roller, and then remove all the ink rollers on the unit to avoid damage caused by long-time extrusion deformation of the rubber roller. And check the bearings at both ends, use the paste to maintain the rubber roller, use the copper water to maintain the copper roller, and wipe the printing plate on the water roller and the water roller. Please use the previous instructions.

3. After the ink fountain, ink fountain button and ink fountain roller are cleaned, apply a layer of lubricating oil for maintenance to prevent rust.

4. Remove all the blankets and pads and the PS plate. Apply a little lubricant to the surface of the blanket cylinder and the impression cylinder and the roller to prevent rust. If the plate cylinder is not equipped with the bottom film, it is also necessary to apply a little lubricant on the surface of the plate cylinder and the roller to prevent rust. If the bottom film is installed and the installation time has exceeded 3 months, please Remove the film from the bottom of the gun and clean the plate roller with alcohol. If it is less than 3 months, wipe the film with a dry cloth (the roller should also be wiped with a little oil for anti-rust treatment).

5. Remove all the roller brush on each color group, put it in the oil drum and soak it, and then install it after work.

6. Discharge the water in the water tank and the water bucket and clean the water tank of each color group. In addition, put the PH test probe into the protection liquid to prevent dryness. (It is strictly forbidden to put the PH test head into pure water).

7. Clean and brush the paper delivery chain and the tooth row and refuel.

8. Clean the transfer roller and the impression cylinder, the tooth and the pad, and refuel in the lubrication part.

9. Clean all the filter screens of the machine. Be sure to replace the service life for more than one year, and refuel the lubrication parts of the whole machine.

10. In order to guarantee and extend the life of the printing press, it is recommended to replace the main engine lubricating oil and filter, and pay attention to the type and origin of the lubricating oil to avoid mistakes or use fake oil.

11. If the machine is equipped with a series of water roller cooling equipment, and the ambient temperature may be lower than 0 °C, please add antifreeze in the cooling water or simply release the cooling water to prevent the freezing of the water pipe and related equipment (the oil cooler does not need to be placed oil).

12. Turn off the main power supply and the water tank tap switch, and let the air and water in the air compressor be discharged. The air in the air control unit of the main unit is also released.

13. Clean the surface of the machine and clean the surrounding environment. It is best to cover the machine with paper.

14. Do a good job in preventing rats. Put some scented pills (mothballs) in the electric box, the bottom of the machine, etc.; it is strictly forbidden to eat food and place food in the printing workshop; install two ultrasonic electric cats next to each machine and start up 24 hours; customers who use WEKO powder spraying machine should use The PS version protects the dusting hopper in the duster to avoid damage from the mouse. (This is the focus of the focus!)

15. In addition to the above, please complete other items in the daily routine of the daily, weekly and monthly maintenance schedules.

Second, the first work to go to work after the holiday:

1. If the temperature of the workshop is low after work after the holiday, the air conditioner around the machine should be turned on 4 hours in advance to raise the temperature of the whole machine and environment to achieve normal printing status.

2. Do not perform any operation within 5 minutes after the host power is turned on. Wait for the host lubricant to circulate to each lubrication point of the machine before starting operation.

3. Turn on the air compressor. After the air in the compressor reaches the set value (automatic stop), slowly open the air valve of the air compressor to supply air to the main engine.

4. Check if there is any foreign matter on the equipment and between the rollers, and drive the vehicle in positive or negative.

5. After cleaning the surface of the roller, install a blanket and a plate to install and adjust the pressure of the roller.

6. Slowly move the machine for 1 hour, check the movement of the ink roller, clutch pressure and other attachments, and check the sound of the deflation when listening to the action of each solenoid valve to confirm that it is working properly. Other preparations can be made while the machine is idling.

7. Check that the machine is in the low speed state and confirm that the reading of the ammeter on the main panel is the same as the reading when the unit is stopped before the holiday.

8. After finishing the above boot preparation work, you can start printing.