Pin register system for screen printers
US5188026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Oct 3, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F9/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A registration apparatus and method is provided to accurately register film positive on screens held by screen frames and to likewise accurately register the screen frames within a printing apparatus with a registration system which reduces set-up time required for the printing machine without requiring an expensive automated registration system. An image positive is positioned on a vacuum table relative to a pair of registration pins or members which fit registration clamps on the screen frame. A plurality of pin tabs are secured on the vacuum table with their respective pins projecting through holes in the image positive. Each successive positive will be positioned on these pin tabs so that all successive positive have the same relationship between their respective image and the registration clamps of their associated screen frames. A calibration pallet is sequentially mounted on successive rotatable pallet arms and carries front and rear alignment holes already aligned with holes in alignment brackets on the front and rear portions of the screen holder. Pins are inserted through holes in the respective alignment brackets on the screen holder and holes in the calibration pallet a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.