Apparatus for punching a hole in a paper web

Details Apparatus for punching a hole in a paper web Apparatus for punching a hole in a paper web

1982-05-03

1986-03-25

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Having tool-opposing, work-engaging surface

83879, 408 95, 408101, 408241S, B23B 4100

Patent

active

045780048

ABSTRACT:
An apparatus for punching a hole in a paper web, in particular for the production of liquid packs, has a movable punch which can be pressed against a counter-plate and which has a circular blade at its tip. In accordance with the invention, to permit the desired hole to be punched into the packaging material to the desired depth, using simple means, the punch has a rotationally driven cutter head. Due to the rotary movement of the punch or the blade-forming edge at the tip of the punch, the blade is no longer merely pressed into the paper web, as in previously known punching apparatuses, but in accordance with the invention it is rotated perpendicularly to the pressing movement, giving a cutting effect as when using a knife.

REFERENCES:
patent: 2527968 (1950-09-01), Sherman et al.
patent: 2849902 (1958-09-01), De Vlieg et al.
patent: 3066554 (1962-12-01), Hanson
patent: 3125883 (1964-03-01), Wollner
patent: 4060333 (1977-11-01), White
patent: 4244669 (1981-01-01), Puritz et al.

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