Press plate positioning apparatus for automatic drawing machine
US4566194A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1985 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Mar 7, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F9/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A press plate positioning apparatus for an automatic drawing machine so as to form punch holes at a punch hole forming edge of a press plate placed and fixed on a drawing board and draw registration marks at predetermined positions, has: an elongated cam plate extending in parallel with a positioning edge of the press plate which extends from the drawing board and which is perpendicular to the punch hole forming edge, the elongated cam plate being moved in a direction parallel to the positioning edge and being provided with a plurality of cam surfaces which are arranged in the longitudinal direction thereof and each of which has a plurality of stepwise horizontal surfaces and at least one inclined surface connecting the stepwise horizontal surfaces; and a plurality of positioning blocks, each of the positioning blocks being adapted not to be moved with respect to the positioning edge, being biased downward, being guided together with a corresponding gripper block such that each positioning block is vertically moved by a behavior of the cam surface upon reciprocal movement of the cam plate so as to bring the positioning edge into contact with one of stepwise vertical surfaces, and b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.