Method for apparatus for producing a nozzle plate of an ink-jet head printer
US6170934A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1997 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Sep 26, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a nozzle plate production method and apparatus, a metallic sheet material is punched to form nozzle holes therein by using a press having punches. Each of the punches includes a tapered conical portion, a straight cylindrical portion, and a rounded interconnecting portion. The interconnecting portion smoothly interconnects the conical portion and the cylindrical portion. Nibs produced on a bottom surface of the sheet material at the nozzle holes by the nozzle hole punching are removed by use of a tape grinding machine. A top surface and the bottom surface of the sheet material are buffed to provide a predetermined level of surface roughness. Burrs produced on the top and bottom surfaces of the sheet material at the nozzle holes by the buffing are removed by ultrasonic cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.