Automatic apparatus for downsetting lead frame strips

Details Automatic apparatus for downsetting lead frame strips Automatic apparatus for downsetting lead frame strips

1983-05-13

1985-06-25

Larson, Lowell A.

Metal deforming

With means to handle work or product

By gripper and/or endless chain

72424, 72426, 72428, 72346, B21D 4300

Patent

active

045246017

ABSTRACT:
An automatic apparatus for downsetting lead frame strips includes a die set mounted in a punch press, two parallel guide rails for guiding the lead frame strips into the die set, a placing mechanism for placing lead frame strips onto the guide rails one at a time, a slide mechanism for advancing a lead frame strip along the guide rails and into the die set and for unloading a downset lead frame strip from the die set, a retractable stop and a slot in the die set for positioning the lead frame strip within the die set, and a stacker mechanism for neatly stacking downset lead frame strips on an output stack as they are unloaded from the die set.

REFERENCES:
patent: 1207390 (1916-12-01), Frahm
patent: 2605910 (1952-08-01), Kovatch
patent: 2627890 (1953-02-01), Lloyd et al.
patent: 2728468 (1955-12-01), Siempelkamp
patent: 3415389 (1968-12-01), Smith
patent: 4260310 (1981-04-01), Blake et al.

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