The light-shielding door of the printing machine is mounted on a track, and its opening and closing are driven by the motor. After one exposure is completed, the time relay turns on the control signal power, the limit switch A is closed, and the control relay of the light-shielding door is closed, so that the motor After turning on and running, and driving the blackout door along the track to reach the end point, this article will introduce you to the high-quality printing machine.
Prepare the work before printing. Preparation before printing is the basis for ensuring the quality of printing and printing. Therefore, before the printing work is carried out, it is necessary to carry out a complete and careful inspection of the printing machine to ensure that the appearance thereof is lubricated, flat and free of dirt, scratches and the like. In addition, it is necessary to keep the stencil of the printing machine to a certain extent, the film is free from dirt and the transparent glass plate is clean. The printing machine should be able to obtain a vacuum of 80 kPa (650 mmHg) within 60 s; the vacuum of the printing machine should not be reduced by 20 kPa (150 mmHg) 5 minutes after the power of the printing machine is turned off.
The uniformity of the light source of the printing machine is required to be above 86% (using precision measuring instruments). Use a 30% dot film film to expose a PS plate. After development, measure with a densitometer. The error between the middle and the four peripheral angles is generally less than 2%, so that it will not appear when printing large-area color blocks. Color difference.
After replacing the travel switch with a metal inductive switch and modifying it, the phenomenon of repeated jitter does not occur when the shutter is closed, and other components are not damaged as a result, which not only reduces maintenance time, but also saves the company a maintenance cost.
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Hebei H-pack Machinery Manufacturing Co., Ltd (subsidiary of Helper Group) is one of earliest manufactures who engaged in polyurethane, silicone adhesive, emulsion explosive, printing ink packing machinery. Thanks to the exquisite technology, serious working attitude, perfect after service, all of these make the reputation of Helper spread in polyurethane and silicone adhesive industrial field. Our polyurethane packing machine, aluminum wire double clipping machine and great wall clipping machine help our clients to create value as a result of their reliable performance.
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