Metal working – Method of mechanical manufacture – Electrical device making
Patent
1994-05-24
1996-07-23
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29609, 29732, 29738, 4147961, 414724, 414907, 414900, H02K 1502
Patent
active
055377319
ABSTRACT:
In a method for the automatic forming of packs of trimmed metal sheets for armatures of electrical machinery or the like, the pack (P') is formed by the controlled drop of a sheet stack (P) housed in a tubular magazine (1) open at the bottom. The pack is dropped against an underlying collection bottom (2) which is brought to a predefined distance from the lower end of the magazine (1). A tightening clamp (3,4) at the lower end of the magazine (1) blocks the stack (P) against a further gravity drop after its descent against the collection bottom (2). A subsequent first lowering of the bottom (2) to separate the pack (P') from the overlying stack, by virtue of a detachment device (22, 122), is followed by a detachment from the lower sheet (L') of the stack (P) of a possible sheet (L) which is mistakenly and temporarily held against the lower sheet (L') of the stack (P) but belongs to the overlying pack (P').
REFERENCES:
patent: 4760638 (1988-08-01), Ott et al.
patent: 4899433 (1990-02-01), Morschel et al.
Soviet Inventions Illustrated, S-X Electrical Section, Week 9313, 1992.
Hall Carl E.
Sassi S.r.l.
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