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US 6,182,547 B2Granted
Unloader conveyor for a blanking die
OwnerIrvin D. Bondinventor
Life of this patent
Estimating the term…
Abstract
A steel blank can be removed from the space between a lower stationary die and an upper movable die by employing a belt conveyor in a cavity in the upper die. The frame for the conveyor belt mounts an array of permanent magnets that exert a magnetic pick-up force through the lower run of the belt into the steel blank. The conveyor frame is floatably suspended to follow the upper die, while being downwardly deflected by the action of a stripper pad carried by the upper die, such that the blank is dislodged from the upper die and then transported out of the space between the two dies.
Claims9
In a blanking die mechanism, the improvement comprising:
- a stationary lower die;
- a vertically movable upper die defining a work space with the lower die for horizontally passing a steel sheet to and from a cutting position on the lower die;
- the upper die being vertically movable in a cutting motion toward a lower position adjacent said cutting position, and toward an upper position spaced above said lower position;
- a conveyor means located in the work space for removing a blank from said cutting position, said conveyor means being vertically movable with respect to the upper die and including a conveyor belt having a horizontally movable lower run, and magnet means overlying said lower run;
- and
- means for connecting the conveyor means to said upper die such that as the upper die is being lowered during a cutting motion, the magnet means and the conveyor belt lower run are shifted in close proximity to the steel blank to raise the steel blank into facial engagement with the lower run of the conveyor belt as the upper die is being raised toward said upper position.
3 more elements
Dependencies are inferred from the claim text.