Clamping-stretching system for stencils for screen printers,with

Details Clamping-stretching system for stencils for screen printers,with Clamping-stretching system for stencils for screen printers,with

1997-08-20

1998-10-13

Funk, Stephen R.

Printing

Stenciling

Stencils

101126, B41F 1536

Patent

active

058196510

ABSTRACT:
The invention relates to a clamping-stretching system for stencils for screen printers, with a printing table for PC boards designed for applying colors, pastes, adhesives, etc., onto even surfaces of a print, preferably onto electronic PC boards with a stencil, which also allows through plating of holes of electronic PC boards. The clamping-stretching system of the stencil may be an element of a machine, or it may be fixed via a frame (4) to all types of printers. Stencils are clamped into it in an exchangable manner. A front crossbar (9) and a back crossbar (10) are guided in the side profiles of the frame which have a pressure bar at their lower part. The front crossbar (9) rests against the front wall (7) or aganist the front profile of the frame via at least one adjustment screw (5) and a cascade of disk springs (13). A universal printing table (3) with an exchangable reception plate has bore-holes into which spacers are inserted in such a manner that they can be pulled out, which support an exchangable reception plate, and a spacer which would get stuck in one of the holes in the reception plate or in a print, can be pulled out.

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