Needle roller arrangement with several needle rollers for perfor

Details Needle roller arrangement with several needle rollers for perfor Needle roller arrangement with several needle rollers for perfor

1996-11-22

1998-09-08

Rachuba, Maurina T.

Cutting

Tool or tool with support

Pointed perforators

83175, B26F 124

Patent

active

058029451

ABSTRACT:
A needle roller arrangement includes several needle rollers arranged in a freely rotatable manner in a rotary frame on a circular line which is concentric to its rotational axis. One of the needle rollers interacts with a brush roller for perforating a material web passing through the arrangement. In order to be able to lift the needle roller interacting with the brush roller away and replace it while requiring less energy, each roller is arranged inside the rotary frame such that it can be lifted off of the brush roller. The needle roller interacting with the brush roller is respectively provided with an arrangement for removal from the brush roller and application to the brush roller.

REFERENCES:
patent: 3079826 (1963-03-01), Shively
patent: 3212381 (1965-10-01), Heyer
patent: 3381731 (1968-05-01), Bath et al.
patent: 3490664 (1970-01-01), Boultinghouse
patent: 3747447 (1973-07-01), Wisner
patent: 4055101 (1977-10-01), Collins
patent: 4083273 (1978-04-01), Hillman et al.
patent: 5019028 (1991-05-01), Engel et al.
patent: 5386752 (1995-02-01), Siegel

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