Web position matching system and packaging machine equipped with the system
US6588174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jul 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B61/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A web position matching system for matching marks provided on a web of packaging material with a pitch corresponding to the length of one container, to a reference position comprises sensor device for detecting the displacement of the mark from the reference position, setting device for setting a usual amount of feed obtained by adding a predetermined amount of advance to a predetermined reference amount of feed corresponding to the length of one container when the displacement detected by the sensor device is smaller than a predetermined allowable displacement or setting a corrected amount of feed obtained by subtracting a predetermined amount of delay from the reference amount of feed when the detected displacement are not smaller than the allowable displacement, and device for correcting the usual amount of feed and the corrected amount of feed based on a pattern of frequencies with which the usual amount of feed and the corrected amount of feed are set by the setting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.