Apparatus for bending metal strip

Details Apparatus for bending metal strip Apparatus for bending metal strip

1984-02-01

1986-12-09

Crane, Daniel C.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 21, 72 31, 72388, 72702, B21D 500

Patent

active

046272550

ABSTRACT:
In a bending machine, metal strip (42) is bent by a sequence of steps including longitudinal advance of the strip (42) alternating with bending of the strip by a movable tool (18) which engages and deflects the strip when the latter is restrained against longitudinal movement. Provision is made for checking or inspecting the permanent angular deformation of each bend applied to the strip, to take account of the tendency of the metal strip to spring back after bending. Compensation for spring-back is achieved by use of a previously described characteristic relating displacement of the bending tool to the resultant permanent angle of bend applied to the strip. Further compensation is provided to remove an error which can arise if the bending tool is movable along a line of action spaced from the point of bending of the strip by an amount greater than the incremental advance of the strip.

REFERENCES:
patent: 3352136 (1967-11-01), Clarke
patent: 3440847 (1969-04-01), Giordano
patent: 3812694 (1974-05-01), Peddinghaus
patent: 4173884 (1979-11-01), Dobinson

Affiliated with

Also associated with

Rating

Apparatus for bending metal strip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for bending metal strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for bending metal strip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1379018