Arrangement for producing drawn formations on workpieces, partic

Metal deforming – By use of closed-die and coacting work-forcer – With stripping or ejecting from tool

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

72345, 72348, 72427, B11D 4500

Patent

active

044346395

ABSTRACT:
A drawing arrangement for producing drawn formations in sheet-shaped workpieces includes a lower tool having a supporting surface for the workpieces and a recess which opens onto the supporting surface, and an upper tool having a female die and movable toward and away from the lower tool for confining a region of the workpiece between itself and the supporting surface. A mandrel is mounted in the recess of the lower tool for movement between a retracted position in which it is fully accommodated in the recess and thus does not project beyond the supporting surface and form an obstruction to the movement of the workpiece, and an extended position in which it penetrates into the female die and forms the drawn formation in the workpiece. The punch is mountd on an actuating member which has a lower contact surface, and the movement of the actuating member is achieved by a lifting device which has an operating member movable toward and out of contact with the contact surface, and a spring which urges the actuating member toward its retracted position. During the retraction movement, the punch itself acts as a stripping tool for the workpiece. A descending chute can be interposed between the actuating and operating members and has a pivotable section movable out of the path of movement of the operating member. The operating member may move at different speeds during approach to the actuating member and thereafter.

REFERENCES:
patent: 1474066 (1923-11-01), Brown
patent: 2377262 (1945-05-01), O'Leary
patent: 2861335 (1952-11-01), Huet
patent: 2976753 (1961-03-01), Fowler
patent: 3051830 (1962-08-01), Swain
patent: 3137067 (1964-06-01), Bruecker
patent: 3148571 (1964-09-01), Wallis
patent: 3893358 (1975-07-01), Dixon
patent: 3913372 (1975-10-01), Baker
patent: 4210013 (1980-07-01), Miller

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Arrangement for producing drawn formations on workpieces, partic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arrangement for producing drawn formations on workpieces, partic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for producing drawn formations on workpieces, partic will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-736006

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.