Large round baler net wrapping device for dispensing net from a

Details Large round baler net wrapping device for dispensing net from a Large round baler net wrapping device for dispensing net from a

1998-01-16

1999-11-02

Gerrity, Stephen F.

Package making

With contents treating

Reshaping

53587, 2425644, 2425645, B65B 6304

Patent

active

059747641

ABSTRACT:
A large round baler is equipped with a wrapping device for wrapping a bale with a web of plastic net wrapping material. The device includes a pair of wrap material feed rolls arranged one above the other with a supply roll of wrapping material being directly supported by the upper feed roll so that during operation of the feed rolls in dispensing a length of wrap material being wrapped about a bale, the periphery of the supply roll is rotated at the same speed as the periphery of the upper feed roll so that no scrubbing takes place between the supply and feed rolls. A pressure applying device uses a pair of air or gas cylinders acting through a linkage to force a freely rotating roller to exert a force on the supply roll which is transferred through the roll to the feed roll. In this way variable friction forces are avoided which would interfere with the maintenance of a desired constant tension in the length of wrapping material so that the bale is wrapped tightly, but without rupturing the net material.

REFERENCES:
patent: 2592788 (1952-04-01), Birr
patent: 3167367 (1965-01-01), Rozlog et al.
patent: 4144696 (1979-03-01), Gustavsson
patent: 4404880 (1983-09-01), DeLuca
patent: 4841716 (1989-06-01), Roymberg
patent: 5181368 (1993-01-01), Anstey et al.
patent: 5311729 (1994-05-01), Viaud
patent: 5687548 (1997-11-01), McClure et al.

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