Pre-peel die ejector apparatus

Details Pre-peel die ejector apparatus Pre-peel die ejector apparatus

1989-04-04

1991-02-05

Werner, Frank E.

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Stack forming apparatus

B23P 2100

Patent

active

049900510

ABSTRACT:
A die ejector chuck is provided with a central housing and an outer housing and the central housing is provided with a die eject collar which extends through an aperture in the outer housing. A preselected die on a flexible adhesive tape is positioned over the die eject collar and a source of vacuum is applied to apertures in the outer housing. The outer housing is moved upward and away from the central die eject collar so as to stretch the flexible adhesive tape by a die eject pin to permt the preselected die to be picked up with a die collet acting with a light pulling force on the active surface of the preselected die.

REFERENCES:
patent: 3720309 (1973-03-01), Weir
patent: 3973682 (1976-08-01), Neff
patent: 4494902 (1985-01-01), Kuppens et al.
patent: 4703965 (1987-11-01), Lee et al.
patent: 4797994 (1989-01-01), Michaud et al.

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