Intermittent web feeding apparatus
US4775088A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1986 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Jul 28, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B41/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An intermittent web feeding apparatus for intermittently feeding fixed length of a web of material during one cycle of a feeding operation by the cooperative operation of a pair of feed rollers for unwinding a web of material from a roll of web material and feeding the web of material to a web processing machine such as a bag-forming and packing machine, and for feeding the web of material to a processing position within the web processing machine, is disclosed. The intermittent web feeding apparatus is equipped with a single servomotor for driving the feed rollers through means of a first transmission mechanism, and the feeding units through means of a second transmission mechanism. The second transmission includes a one-way clutch for delaying the stoppage of the feeding units for a suitable period of time relative to the feed rollers so that the portion of the web of material extending between the feed rollers and the feeding units is kept in a moderately taut state when the web feeding operation is interrupted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.