Package making – Methods – Wrapping contents including cover forming
Patent
1992-04-16
1993-11-09
Sipos, John
Package making
Methods
Wrapping contents including cover forming
53211, 53215, B65B 1104
Patent
active
052591719
ABSTRACT:
An assembly and method for the guided threading of a wrapper for the wrapping of cylindrical objects, including a two-part frame (2, 3), a belt-like element (8, 9) for guiding the wrapper, and elements (4, 5, 6 and 7, 10, 11) attached to the frame, suitable for transferring the belt-like element (8, 9) to rest against the roll (1). The wrapper is guided by means of a roller chain (8, 9) comprised of a plurality of freely rotating rollers (17) which are linked to each other. The assembly incorporates two pairs of support arms placed to function in opposing directions with respect to rotating direction of the roll (1), the arm pairs comprising a lower support arm (5, 7) and an upper elongated support arm (4, 6), both pivotally mounted to the frame (2, 3), crank levers (10) attached to the pivotally mounted end of each support arm, and pneumatic cylinders (11) connected to each crank lever (10), capable of rotating the support arms (4, 5, 6 and 7) via the crank levers (10). There are two roller chains (8, 9) which are tightened between the ends of the support arms so that they can be transferred by means of the support arms (4, 5, 6 and 7) to rest against the roll (1).
REFERENCES:
patent: 3964232 (1976-06-01), Bender et al.
patent: 4224782 (1980-09-01), Moflag
patent: 4333301 (1982-06-01), Koutonen et al.
patent: 4723395 (1988-02-01), Koutonen
patent: 4841851 (1989-06-01), Quataert
patent: 4945707 (1990-08-01), Cosmo
Johnson Linda B.
Sipos John
Valmet Paper Machinery Incorporated
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