Presses – Reciprocating press construction – Range of movement adjustment
Patent
1997-07-15
1998-12-15
Gerrity, Stephen F.
Presses
Reciprocating press construction
Range of movement adjustment
72446, 72450, 724525, 83530, 83626, 100282, 100285, 4254516, B30B 106
Patent
active
058485686
ABSTRACT:
A link mechanism for driving a slide in a machine press has a pivot pin with an adjustable position for varying the die height and the stroke length of the slide. A first link of the link mechanism is connected to a sliding member which is restricted to vertical movement in a groove. Another end of the first link is pivotally connected to a second link and a third link. Another end of the second link is pivotally connected to the pivot pin. Another end of the third link is connected to a plunger which is connected to the slide. The plunger is movably held in the machine press and restricted to vertical movement. The up and down motion of the sliding member is translated through the first link, second link, and third link into the up and down movement of the plunger and the slide.
REFERENCES:
patent: 1696849 (1928-12-01), Kelleher
patent: 4160409 (1979-07-01), Portmann
patent: 5317893 (1994-06-01), Eigenmann et al.
patent: 5531160 (1996-07-01), Eigenmann
Aida Engineering Co., Ltd.
Gerrity Stephen F.
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