Advancing material of indeterminate length – With material-responsive control means – To position material laterally
Patent
1996-05-24
1998-11-10
Jillions, John M.
Advancing material of indeterminate length
With material-responsive control means
To position material laterally
226 21, B65H 2302
Patent
active
058331069
ABSTRACT:
An equalizing roll and web tracking apparatus to be used in manufacturing for providing equal tension across a web during winding operations such as used in polymer film applications, corrugators, paper machines, printing presses, cloth winders, and metal winding operations.
The equalizing roll utilizes a common axis shaft mounted horizontally on two bearings or clamped rigid supports allowing for rotation. Mounted in the center of the axis shaft is a bearing assembly having convex and concave portions disposed within a sleeve. The bearing assembly is centrally mounted inside a hollow cylinder or roll machined to be in balance with respect to the centrally disposed bearing assembly. The mating of the concave and convex portions of the bearing permits a selected degree of lateral rotation in a range of from about 1 degree to about 10 degrees. As the web runs over the roll, any imbalance of lateral tension will cause the roll to pivot at it's center permitting the roll to move upward on the side of least tension until the web tension is equalized across the entire roll.
The equalizing roll tracking apparatus utilizes an adjustable control arm assembly having a pair of adjustable pivot arms with steering arms linked to sensor arms. The distal ends of the sensor arms are in contact with the outer edges of a web, sheet, or belt of material supported by at least one idler roll and utilizing at least one equalizing roll. The steering arms float on the outer diameter of the equalizing roll. The sensor arms are pivotally linked to the steering arms so that the misalignment of the belt, sheet or web moves the sensor arms slightly causing the steering arms to pivot and exert pressure on the equalizing roll thereby counteracting and aligning the direction of the web, belt, or sheet of material supported thereby.
REFERENCES:
patent: 597456 (1898-01-01), Cocker
patent: 850892 (1907-04-01), Ball et al.
patent: 2476070 (1949-07-01), Solliday
patent: 3224757 (1965-12-01), Parke
patent: 3489264 (1970-01-01), Begiebing
patent: 3658271 (1972-04-01), Austin
patent: 3831876 (1974-08-01), Phelps
patent: 4109976 (1978-08-01), Koch
patent: 4196803 (1980-04-01), Lovett
patent: 4198012 (1980-04-01), Esmonde
patent: 4214689 (1980-07-01), Bartel et al.
patent: 4235002 (1980-11-01), Pav
patent: 4461431 (1984-07-01), Wiley et al.
patent: 4551203 (1985-11-01), Eskelinen
patent: 4641770 (1987-02-01), Hediger
patent: 4809445 (1989-03-01), Meyer
patent: 4893740 (1990-01-01), Hediger et al.
patent: 5061087 (1991-10-01), Roerig
patent: 5209418 (1993-05-01), Alexando, III
patent: 5219231 (1993-06-01), Sheedy
patent: 5224790 (1993-07-01), Hein
patent: 5244518 (1993-09-01), Krayenhagen et al.
patent: 5265965 (1993-11-01), Harris
patent: 5339534 (1994-08-01), Krayenhagen
patent: 5415611 (1995-05-01), Krayenhagen
patent: 5419509 (1995-05-01), Krayenhagen
patent: 5547449 (1996-08-01), Krayenhagen
Carrithers David W.
Jillions John M.
The Servant's Inc.
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