Advancing material of indeterminate length – With material-responsive control means – To position material laterally
Patent
1996-05-24
1998-03-17
Mansen, Michael
Advancing material of indeterminate length
With material-responsive control means
To position material laterally
226 95, 226170, B23Q 1500, B65H 2000
Patent
active
057277222
ABSTRACT:
A conveyor belt system comprises a main conveyor belt mounted about rollers and moveable to carry a web from an infeed area. The belt is porous and air is drawn from a vacuum box underlying the belt to create a pressure differential across the belt to hold the web in position.
The position of the web in the infeed area is detected by a detector which is used to control the cross-belt which lies between the web and the conveyor belt. By transfers movement of the belt the position of the web can be maintained at a desired location relative to the belt. The use of a web as a position control member is more effective than the use of edge guides, particularly for thin or soft web materials.
REFERENCES:
patent: 3321121 (1967-05-01), Nyberg et al.
patent: 3679112 (1972-07-01), Black et al.
patent: 3784071 (1974-01-01), Milan
patent: 4437918 (1984-03-01), Morohashi et al.
patent: 5087313 (1992-02-01), Duecker
patent: 5362041 (1994-11-01), Ryuzaki et al.
Mansen Michael
Rolt Designs Limited
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