Device for cutting a paper web in a press end of a paper machine

Details Device for cutting a paper web in a press end of a paper machine Device for cutting a paper web in a press end of a paper machine

1993-05-19

1997-01-07

Rada, Rinaldi I.

Cutting

Operation controlled by detector means responsive to work

Actuation of tool controlled in response to work-sensing means

83360, 83177, 162255, B26D 520

Patent

active

055905773

ABSTRACT:
A cutting-off device and at least one tear detector are provided for cutting a web of paper in a press end of a paper machine, in response to a tear in the web of paper in a single-tier dryer end, the tear of the web of paper being recognized via a tear signal and transmitted to the cutting-off device. The tear detector has a transmission/reception base unit, which, on the one hand, at the start of a production cycle, or whenever a tear in the paper web is detected, records and stores the spectrum of the existing shade of color of the corresponding dryer felt, and possibly updates the stored shade of color at the time of subsequent tears. On the other hand, upon a later tear in the paper web, the base unit compares the shade of color of the dryer felt at the existing tear and the previously stored shade of color. If they match, the base unit activates the cutting-off device when (and only when) the stored shade of color of the dryer felt is recognized.

REFERENCES:
patent: 2864284 (1958-12-01), Proffen
patent: 2888073 (1959-05-01), Corbin et al.
patent: 2954082 (1960-09-01), Moore
patent: 3096233 (1963-07-01), Rappaport et al.
patent: 3151482 (1964-08-01), Forrester et al.
patent: 3552252 (1971-01-01), Maxey et al.
patent: 3797719 (1974-03-01), Tall et al.
patent: 4071899 (1978-01-01), Holy
patent: 4648942 (1987-03-01), Wanke et al.
patent: 4799997 (1989-01-01), Thompson

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