Simultaneous screen registration system

In a screen printing system, a registration apparatus for simultaneously registering a plurality of screens comprising:

• a. a plurality of automatic screen registration devices for registering a plurality of screen printing frames, each screen registration device comprising:
• i. a print head;
• ii. a first and second frame opposing one another and attached to each print head, the first and second frame each having a pair of opposing side edges and a pair of opposing end edges;
• iii. a first block extending perpendicularly from the side edge at one end of the first frame to create a first corner between the first block and first frame;
• iv. a second block extending perpendicularly from the side edge at one end of the second frame such that the first block and second block are opposing;
• v. a third block parallel to the side edge of the second frame and perpendicular to the second block to form a second corner between the second and third blocks;
• vi. means for positioning each screen between said pair of opposing frames and adjacent to the first and second corners.

A method for simultaneous registration of a plurality of images on a plurality of screens secured in a plurality of screen frames in a screen printer having a succession of screenprinting stations for printing successive images on a workpiece carried through the successive printing stations, said method comprising the steps of:

• a. providing a support for securing each of the screens to one of a plurality of image positives;
• b. bringing each of the screen frames to the support and simultaneously registering each screen using a plurality of registration apparatuses for registering a plurality of screens, each registration apparatus comprising:
• i. a print head;
• ii. a first and second frame opposing one another and attached to the print head, each frame having a pair of opposing side edges and a pair of opposing end edges;
• iii. a first block extending perpendicularly from the side edge at one end of the first frame to create a first corner between the first block and first frame;
• iv. a second block extending perpendicularly from the side edge at one end of the second frame such that the first block and second block are opposing;
• v. a third block parallel to the side edge of the second frame and perpendicular to the second block to form a second corner between the second and third blocks;
• vi. means for positioning each screen between said pair of opposing frames and adjacent to the first and second corners;
• c. simultaneously aligning each screen between each pair of opposing frames and adjacent to the first and second corners.