Arrangement for tensioning and guiding the belts of a cellular plastic forming machine
US4051742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1976 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Sep 3, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0859
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic-tensioning arrangement for roller driven belts of a cellular plastic forming machine is described. Sensor means are provided for detecting lateral movement of the belts on the support or drive rollers thereof and for generating a control signal in response thereto. The control signal from the sensor means is applied to a hydraulic tensioning device which displaces the drive rollers longitudinally of the belts to automatically tension the belts in response to detected lateral belt movement. A hydraulic tensioning device is provided for each end of each drive roller so the respective ends can be moved separately from one another. Accordingly, by selective movement of the respective ends of the rollers the belts can be guided back to normal desired position in response to a control signal from the respective sensor means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.