Apparatus for making a transformer core comprising strips of amo

Details Apparatus for making a transformer core comprising strips of amo Apparatus for making a transformer core comprising strips of amo

1992-10-20

1994-06-21

Vo, Peter Dungba

Metal working

Means to assemble or disassemble

Means to assemble electrical device

296021, 29605, 72147, B23P 1904, H01F 304, B21C 4702

Patent

active

053218833

ABSTRACT:
This wrapping apparatus comprises a belt nester for wrapping stacks of thin amorphous steel strips about an arbor. The belt nester includes (a) a belt wrapped about the arbor and movable along its length to impart rotary motion to the arbor and (b) means for successively feeding individual ones of the stacks into the space between the belt and the arbor. The wrapping apparatus further comprises means defining a first substantially-flat surface upon which the stacks are supported as they are fed into the space between the belt and the arbor and additional means defining a second substantially-flat surface extending parallel to the first flat surface. Control means operates when a stack that is being wrapped on the arbor passes between said flat surfaces to bias one of the flat surfaces toward the other and to compress the stack between the two flat surfaces as the stack is wrapped. This compression removes wrinkles from the strips, removes air pockets from between the strips, and enables the stack to be more effectively guided by guide members at the longitudinal edges of the stack.

REFERENCES:
patent: 3049793 (1962-08-01), Cooper
patent: 4467632 (1984-08-01), Klappert
patent: 4734975 (1988-04-01), Ballard et al.
patent: 4741096 (1988-05-01), Lee et al.
patent: 5050294 (1991-09-01), Ballard et al.
patent: 5093981 (1992-03-01), Ballard et al.
patent: 5230139 (1993-07-01), Klappert et al.

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