B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
270/118
B65H 3/06 (2006.01) B26D 5/34 (2006.01) B65B 57/12 (2006.01) B65H 19/14 (2006.01) B65H 20/24 (2006.01) B65H 23/188 (2006.01)
Patent
CA 1176278
ABSTRACT (Figure 1) The device for feeding sheets (F) of wrapping material to packaging machines comprises a feeding group (11, 12, 26, 27) operating intermittently, driven by independent electric motors (24, 28) controlled in synchronism with the operating frequency of the packaging machine by a programmable electronic control circuit (40 - - 53). The sheets (F) are individually cut the one after the other from a continuous web (N) unreeled from a roll (B) which is driven into rotation by an electric motor. The web forms a buffer loop (A) and passes through a pair of intermittent-feeding rollers (119 12) from which it is fed to a cutter (26, 27) of the rotary alternating type. Both the intermittent-feeding rollers (11, 12) and the cutter (26, 27) are driven by separate independent electric stepping motors (24, 28). The programmable electronic control circuit (40 - 53) establishes for each single motor a determined law of motion, variable at will.
375009
Manservisi Renato
Neri Bruno
Sasib S.p.a.
Swabey Ogilvy Renault
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