Punching devices

Details Punching devices Punching devices

1988-05-16

1990-02-27

Phan, Hien H.

Cutting

Tool engages work during dwell of intermittent workfeed

Work-feed element contacts and moves with work

83530, 83624, 83628, B26D 706, B26F 140

Patent

active

049035606

ABSTRACT:
A punching device for automatic punching machines for the punching of paper, cardboard and the like, comprising: a driving mechanism for a top shoe; such as a rocking lever drive, elliptical cam drive, or wedge-form transmission; a stationary bottom shoe supporting a counter-punch; a movable top shoe supporting punch knives; and a gripper bar arrangement for intermittent forwarding through the punching device of sheets to be punched wherein the drive mechanism for the top shoe is located between the top shoe and a yoke which is connected with the bottom shoe through prestressed tie rods.

REFERENCES:
patent: 1007792 (1911-11-01), Orton
patent: 1749545 (1930-03-01), Pierce
patent: 2507556 (1950-05-01), Bobst
patent: 3678792 (1972-07-01), Dvorak

Affiliated with

Also associated with

Rating

Punching devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-165716