A case of four-color offset press duster

PZ4880-01B unit type lithographic offset printing machine is a JP-1 type electrostatic duster. It is mainly composed of a hopper, a drive motor, a high voltage generator and a powder control unit. Among them, the high voltage generator is used to generate The high-voltage electric field that sprays down the powder, the high voltage lead wire is fixed on the outer surface of the bottom of the hopper through an adjusting screw made of a nylon rod or a ceramic material with better insulation performance. The lead wire end is threaded through the adjustment screw and fixed at both ends of the hopper. Support frame.

In one use, the machine's dusting device had a failure. Upon inspection, it was found that the high-voltage line had a broken spot on the section of the adjusting screw core. So we replaced it with the same specification high-voltage wire on another offset press, and retained the original adjusting screw. As a result, the newly replaced high-voltage wire was broken down. Later, we analyzed that the adjusting screw could be penetrated first. Only when the high-voltage line was broken down, we replaced the high-voltage line and the adjusting screw at the same time. As a result, we retested the machine and returned to normal.