How to solve the problem of drawing in the production process of CCD screen printing machine?

　　If there is a foreign object stuck on the blade edge or under the blade, move the scraper back and forth during the printing process, up and down, to remove the foreign object stuck on the scraper or remove the foreign object directly with a bamboo skewer (this must be done by a skilled operator to avoid unnecessary damage caused by improper operation). If necessary, stop the machine and clean the screen printing equipment thoroughly.

　　Insufficient ink circulation part of the ink slot in the dead corner position, due to poor circulation caused by resin precipitation, the formation of different sizes of crystallization and caking, or excessive drying caused by the surface formation of ink skin (summer is easy to produce ink skin, spring and autumn due to the influence of temperature ink crystallization and caking more), with the ink circulation, a part of the ink crystallization or ink skin is rotating drum to the blade, The scraper breaks it off, creating an irregular drawing. Therefore, it is necessary to improve the circulation and filtration of ink from two aspects.

　　First, circulation improvement

　　Method one, the ink tank tilt to the left and right, to ensure that the ink can be injected by a slightly higher end, from the lower end of the outflow, the formation of a good cycle;

　　Method two, the ink slot is placed flat, but the ink must be injected from both ends at the same time, from the middle of the reflux, so that it can also form a good cycle, not from the unilateral injection of ink screen printing equipment.

　　Two, filter improvement

　　Ink must be applied before initial filtration, even for new ink, generally using a 140 mesh/inch screen. More importantly, it can filter out resin crystallization and foreign impurities in the process of formation of the ink, the choice of the net should be better, the following method is to set up a sock ink bucket, form a filter bucket, after a period of filtering, if the filter is blocked, the flow of ink is not smooth, you can insert some small holes in the top of the bucket root bamboo Sign, increase the ink guide effect, the bottom of the bucket can also play a good role in precipitation impurities.