Twine wrapper trip mechanism

Presses – Binding – With material winding or folding

Patent

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Details

100 88, 56341, B65B 6304, B65B 1320

Patent

active

050146130

ABSTRACT:
A roll baling machine includes a main frame, a tailgate pivotally connected to the main frame, and an apron extending around a plurality of guide rolls disposed in the main frame and in the tailgate. A pair of take up arms are rotatably mounted in the tailgate and carry an additional guide roll for the apron. A pair of levers are connected to rotate with the take up arms, and springs are connected to the levers to urge the take up arms into a bale starting position. The machine is provided with a twine wrapper, and a mechanism for automatically tripping the twine wrapper into operation comprises a cam surface on one of the levers engageable with a cam roller carried on a first link. This first link is rotatably mounted on the main frame and is connected to a sliding member which is movable toward and away from a tripping position. The tripping mechanism also includes second, third and fourth links connecting the first link to the sliding member. When the tailgate is raised, the cam surface on the one lever is moved out of engagement with the cam roller on the first link to prevent improper tripping of the twine wrapper.

REFERENCES:
patent: 4167844 (1979-09-01), Freimuth et al.
patent: 4246743 (1981-01-01), Anstee et al.
patent: 4557189 (1985-12-01), Schaible
patent: 4658573 (1987-04-01), Van Ginhoven
patent: 4771595 (1988-09-01), Jennings
patent: 4779526 (1988-10-01), Frerich et al.
patent: 4798044 (1989-01-01), Viaud et al.
patent: 4885990 (1989-12-01), Mouret
patent: 4956968 (1990-09-01), Underhill

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