Device for cutting a web into predetermined sections

Details Device for cutting a web into predetermined sections Device for cutting a web into predetermined sections

1978-06-01

1980-04-15

Schran, Donald R.

Cutting

Tool engages work during dwell of intermittent workfeed

Work-sensing means to control work-moving or work-stopping...

83241, 83245, 83275, 83336, 83365, B26D 534

Patent

active

041977734

ABSTRACT:
The device for cutting a web into sections according to cutting marks provided on the web comprises an advancing roller for advancing the web along a predetermined track, an electrooptical scanning device for reading respective cutting marks on the web and for generating corresponding output signals, a cutting mechanism arranged on the track behind the advancing roller and monitored by the scanning, a tension equalizing and loop forming device arranged on the track before the advancing roller and the scanning device to loop resiliently a portion of the web, an elliptical gear driving system for driving the advancing roller; and a magnetic coupling arranged between the driving system and the advancing roller to stop the feeding of the web in response to the output signals from the scanning device and to resume the feeding after the cutting mechanism has severed the marked web portion.

REFERENCES:
patent: 1786992 (1930-12-01), Gronemeyer
patent: 3083602 (1963-04-01), Obenshain
patent: 3706247 (1972-12-01), Clark
patent: 3743413 (1973-07-01), Sharp et al.
patent: 3937112 (1976-02-01), Geeson

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