Web cutting position control system
US4955265A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1989 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Feb 1, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/543
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A web cutting position control system capable of cutting a web having a print pattern thereon in such a manner as to match the print pattern without limiting the mounting position of a synchronizing mark detecting means for detecting synchronizing marks on the web is disclosed. A counter for counting the rotational pulses, for example, of a cutting cylinder for cutting the web is provided so as to compare the pulse count at the time of synchronizing mark detection with the reference value representing a value at the moment when the web and the cutting cylinder are in normal relative positions, and to control the relative positions of the web and the cutting cylinder to the normal relative positions by controlling the movement of a compensating roller until the two values become equal to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.