U/Z-shaped steel bar manufacturing process

Details U/Z-shaped steel bar manufacturing process U/Z-shaped steel bar manufacturing process

2007-04-24

2007-04-24

Crane, Daniel C. (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

With cutting of work or product

C072S177000, C072S181000, C083S549000, C083S687000

Reexamination Certificate

active

11038074

ABSTRACT:
Disclosed is an U/Z-shaped steel bar manufacturing process, which includes the steps of (a) supplying a steel sheet material from a material rack to a flattening machine, (b) operating the flattening machine to flatten the steel sheet material and then delivering the steel sheet material to a punch press for punching, (c) operating the punch press to selectively drive the punch dies to punch the steel sheet material with punch holes subject to a predetermined punch pattern, (d) delivering the punched steel sheet material to a roll forming machine and then operating the roll forming machine to ram the punched steel sheet material into an U/Z-shaped steel bar, (e) operating a straightening machine to straighten the U/Z-shaped steel bar, and (f) operating a conveyer to carry the finished product backwards for packing and further delivery or storage.

REFERENCES:
patent: 2127618 (1938-08-01), Riemenshneider
patent: 2708958 (1955-05-01), Crafton
patent: 3393547 (1968-07-01), Kortan
patent: 6769600 (2004-08-01), Knox et al.
patent: 6997026 (2006-02-01), Fischer
patent: 7086582 (2006-08-01), Yang et al.
patent: 2001/0011468 (2001-08-01), Bradbury et al.
patent: 58-77714 (1983-05-01), None

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