Hole punching method and apparatus

Details Hole punching method and apparatus Hole punching method and apparatus

1976-12-08

1978-04-11

Meister, J. M.

Cutting

Processes

Cutting of interdigitating products

83327, 83660, B26F 108

Patent

active

040832732

ABSTRACT:
Method and apparatus for punching holes in continuously moving board material are disclosed. The holes may be decorative or functional and are punched so that no or negligible elongation results. The board is continuously moved in a first direction at a first speed and at least one member having pins or other projections thereon is rotated simultaneously about two axes at angular speeds such that the pins contact and punch the board during a portion of the rotation of the member while the speed of the member and the first speed are approximately equal and with the projections being in an essentially predetermined orientation to the board. Since the projections are oriented with respect to the board and are moving at approximately the same speed as the board while they contact and punch the board, there will be no or negligible elongation of the punched holes.

REFERENCES:
patent: 3479913 (1969-11-01), Goemann et al.
patent: 3747447 (1973-07-01), Wisner

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