Antirotation straightening machine

Details Antirotation straightening machine Antirotation straightening machine

1989-07-31

1991-07-30

Crane, Daniel C.

Metal deforming

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

By use of deflected arranged to provide longitudinally...

72164, B21F 102

Patent

active

050351303

ABSTRACT:
Antirotation method to straighten sections (11), such sections (11) having a solid or hollow cross section and possibly having externally a round or ribbed cross section, or ridges, or else TOR type helicoidal ribbing, or a three-lobed, cross-shaped or star-shaped cross section, etc., and being in the form of bars or coils in a wound bundle (12) and possibly comprising a lengthwise twist, the section (11) being guided by grooves (21) comprises in rolls (18) of processing assemblies (16-17-23) and being made to pass through a guide and prestraightener assembly (16) and through two straightening assemblies (17) before being rendered linear (20) and then finished by a finishing assembly (23), the section (11) being diverted during the straightening step along at least one S-shaped or Z-shaped half-loop (14) and remaining positioned substantially on one single plane until it reaches the finishing assembly (23).

REFERENCES:
patent: 511422 (1893-12-01), Haskin
patent: 731675 (1903-06-01), Borchardt
patent: 2084746 (1937-06-01), Roberts
patent: 2092840 (1937-09-01), Greene
patent: 2517309 (1950-08-01), Heller
patent: 2567770 (1951-09-01), Heller
patent: 2720243 (1955-10-01), Siegerist
patent: 3326025 (1967-06-01), Nishioka
patent: 3374653 (1968-03-01), Ziegler
patent: 3427848 (1969-02-01), Gay
patent: 3798948 (1974-03-01), Fangmeier

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