Apparatus for separating webs of material into (two) part webs

Details Apparatus for separating webs of material into (two) part webs Apparatus for separating webs of material into (two) part webs

1988-09-30

1990-10-02

Stodola, Daniel P.

Advancing material of indeterminate length

With material-responsive control means

To position material laterally

242 565, 83 73, 226 18, B65H 2326, B23Q 1522

Patent

active

049602349

ABSTRACT:
Packaging machines are often supplied with a web of packaging material of double width. During transport, the web of material (11) is sub-divided into two part webs (12,13) by means of a central longitudinal cut. The exact run of the web of material (11) and of the part webs (12,13) is monitored by edge-sensing members (21; 25,26). Any deviations from the correct position are transmitted as error signal to web-adjusting members (24; 27,28). These are each equipped with two deflecting rollers (32,33 or 59,60 or 62,63) arranged at a distance from one another and intended for deflecting the web of material (11) or part web (12,13). The two deflecting rollers are each adjusted in order to adjust the web run.

REFERENCES:
patent: 3599849 (1971-08-01), Callan
patent: 3752377 (1973-08-01), Knapp
patent: 4049213 (1977-09-01), Hank et al.
patent: 4204619 (1980-05-01), Damour
patent: 4477006 (1984-10-01), Sharp
patent: 4572417 (1986-02-01), Joseph
patent: 4627319 (1986-12-01), Mattei et al.

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