Wireworking – Wire straightening
Patent
1984-08-30
1986-03-04
Briggs, William R.
Wireworking
Wire straightening
295663, B21F 102
Patent
active
045735018
ABSTRACT:
An apparatus for cutting and forming leads of electronic parts to desired shape comprises a main body including a feeder, a cutter, and a former, and a hopper attached to the body close to the feeder. The hopper includes a received with aprons, a belt conveyor arranged adjacent to the aprons and operated by belt wheels on shafts, a pair of covers having guide and straight portions, and a pair of guides located near the conveyor. The feeder includes one pair each of toothed feed wheels and outer feed wheels mounted on a countershaft. The cutter includes one pair each of guide holders and the inside cutting edges with their edges extended beyond the dedendum circles at the outer feed wheels. The former includes one pair each of bender holders and benders outside, both mounted on the cutter shaft. Each bender has a leaf spring wide enough to cover the periphery, from the dedendum circle to the tooth tops, of the associated fed wheel so as to bend and form the lead in each tooth space of the wheel. The belt conveyor is driven by a motor through endless belts and pulleys on the countershaft and driving belt wheel shaft. A pressure plate is held on the underside of the carrying run section of the conveyor to press the section against the covers to straighten the leads. An alternative to the hopper is a tape guide mechanism which includes a pair of tape guides to receive and guide the tapes connecting the outer ends of leads in a row and transfer the leads to the outer feed wheels.
REFERENCES:
patent: 3769823 (1973-11-01), Greeninger
patent: 4279278 (1981-07-01), Weresch
patent: 4282908 (1981-08-01), Bankes et al.
Briggs William R.
Henry Mann, Inc.
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