Apparatus for a stepwise advancing of a web-shaped workpiece

Details Apparatus for a stepwise advancing of a web-shaped workpiece Apparatus for a stepwise advancing of a web-shaped workpiece

1990-08-24

1992-05-05

Stodola, Daniel P.

Advancing material of indeterminate length

By intermittent material-mover

Comprising material-moving roll

226143, 226154, 226158, 74 49, 74603, B65H 2004, F16H 2100

Patent

active

051100266

ABSTRACT:
The crank assembly of the advancing apparatus is eccentrically supported in an intermediate shaft. This intermediate shaft is in turn supported in an oscillating slide. Accordingly, the oscillating movement of the slide is superimposed over such of the driving pivot of the crank assembly. The intermediate shaft includes a cam disk. Due to the cam disk the intermediate shaft oscillates in operation and causes in turn the oscillating movement of the slide, which oscillating movement proceeds oppositely to the oscillating movement of the driving pivot. The sum of these two movements in the zones of the end positions thereof is accordingly zero. Accordingly, the driving pivot is at rest over a prolonged time span. Due to this prolonged rest period between individual feeding steps, elastical deformations of working structures and of the workpiece being worked upon, can attenuate and fade out prior to the working proper, and at the same time the length of the advancing is not subjected to a change. Furthermore, any clamping elements for the clamping of the workpiece can be lowered more slowly against the workpiece such that a lower energy of impact is produced. Conclusively, the workpieces are not subjected to a plastic deformation. The apparatus finds application specifically in punch presses.

REFERENCES:
patent: 3784075 (1974-01-01), Portmann
patent: 4156387 (1979-05-01), Portmann
patent: 4800777 (1989-01-01), Imanishi et al.
patent: 4979476 (1990-12-01), Islas

Affiliated with

Also associated with

Rating

Apparatus for a stepwise advancing of a web-shaped workpiece 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 a stepwise advancing of a web-shaped workpiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for a stepwise advancing of a web-shaped workpiece will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1407224