Servo-control of machine motions in manufacture of glass containers
US4548637A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1984 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Aug 30, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/13
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A servo control system and method for controlling repetitious or oscillatory motion of a member in a glass manufacturing process between predetermined points. A desired trajectory between such points is first established as a function of time, and this trajectory is then loaded into a digital electronic memory as a plurality of discrete trajectory position signals arranged in an incremental series as a function of time. Control logic, which includes a real time oscillator, periodically accesses the memory so as to sequentially select and read therefrom the incremental trajectory position signals. These incremental signals are fed as a desired position control signal to a servo amplifier, which receives a second input from a position transducer coupled to the movable member and provides an amplifier output to a servo motor and then to the member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.