1. Corner positioning: suitable for use when the size of the printed parts is consistent;
2. Hole positioning: suitable for the use of thick printed materials, such as circuit boards;
3. Three-point positioning: the feeding should be light and handy, and it is best to vacuum suction when suitable;
4. Crosshair positioning: There are two kinds of transparent materials and opaque materials, which are printed in empty first, and then overprinted after finding the crosshairs;
5. Graphic positioning: mainly overprint on the 4-color rotary screen printing platform, put the film on a worktable, and then the four screens are respectively aligned with the film, and they can be fixed after being aligned;
6. Tooling positioning: mainly used for the positioning of injection molded panels.
The positioning of the semi-automatic screen printing machine is to put a protective film on the printed matter, adjust it while trial printing (the front, rear, left and right have adjustment devices), and lock it after adjustment. The automatic screen printing machine is automatic transmission, and the positioning has front block, left and right block and suction cup coordinated positioning, and then transferred to the next process after screen printing.
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