Coating apparatus – Program – cyclic – or time control – Sequential energization of plural operations
Patent
1981-04-07
1983-09-27
McIntosh, John P.
Coating apparatus
Program, cyclic, or time control
Sequential energization of plural operations
118 41, 118236, 118235, 118212, 83236, B05C 102, B05C 1300
Patent
active
044062516
ABSTRACT:
A device for feeding sheets of wrapping material from a roll formed of wrapping material web to a packaging machine which discontinuously operates at consecutive cycles. The device includes a transversal cutter provided with cutter blades for cutting single sheets of wrapping material from the web which has a new leading edge after each cut, and at least one intermittent motion feeding group for feeding the web to the cutter. A first independent electric stepping motor drives the feeding group and is controlled by a programmable electronic control circuit which controls the stepping motor to drive the feeding group in accordance with a predetermined sequence of motions in synchronism with the cycles the packaging machine, including momentarily driving the feeding group backwards to withdraw and detach the leading edge of the web from the cutter blades.
REFERENCES:
patent: 2396417 (1946-03-01), Gerlach
patent: 3121018 (1964-02-01), Wood et al.
patent: 3177749 (1965-04-01), Best et al.
patent: 3599521 (1971-08-01), Lee
patent: 3757619 (1973-09-01), Gianese
patent: 4006395 (1977-02-01), Reesen
patent: 4277731 (1981-07-01), Pongracz
Manservisi Renato
Neri Bruno
McIntosh John P.
Sasib S.p.A.
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