Control system for monitoring and controlling the processing of glass sheets in a glass processing environment
US4364766A · kind A · utility
Inventor
Key dates
| Filing date | Mar 30, 1982 |
| Grant date | Dec 21, 1982 |
| Priority date | — |
| Expiry date | Mar 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/13
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A microprocessor-based control system for monitoring and controlling the processing of pairs of sheets of glass in a glass bending and tempering system. The glass sheets are conveyed by a horizontal roller conveyor which is driven by a drive motor. The roller conveyor conveys pairs of sheets of glass along the longitudinal length of an elongated heating chamber to a bending station where the glass sheets of each pair are simultaneously lifted by a bending apparatus. The glass sheets are controllably moved within the heating chamber while on a plurality of rolls adjacent the bending apparatus independent of glass sheet conveyance on the other rolls of the conveyor. The control system includes a photoelectric sensor pair mounted on the conveyor for sensing the glass sheets as the glass sheets are conveyed by the conveyor. The photoelectric sensor pair provides a glass sense signal to a control computer. An incremental encoder coupled to the output shaft of the drive motor provides a signal representation of the angular displacement of the output shaft to the control computer. The control computer is programmed to respond to the glass sense signals and a transport signal of the encode…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.