Method and apparatus for automatic punching
US4628578A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1984 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Aug 14, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/543
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sheet of material is printed with a plurality of printed portions to be punched as a plurality of positioning marks near said printed portions. A camera is provided for a press machine for detecting center positions of the mark and the printed portions are positioned at a punching portion of the press based on the detected center positions Vacuum sucking means are provided to such the sheet mounted on a table and obliquely moving the sheet until its edge engages a stop member which corrects the attitude of the sheet. When a defective printed portion is detected, punching thereof is prevented. The apparatus is constructed to minimize the stroke of movement of the sheet during the steps of supplying and positioning it to the press machine and discharging a scrap remaining after punching the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.