Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Patent
1997-03-04
1998-11-10
Mansen, Michael
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
226 42, 226111, 270 5208, 493 11, 493193, 493196, B65H 2318, B65H 2024, B65H 3900, B31B 164
Patent
active
058331077
ABSTRACT:
A split bag making machine includes a first primary split draw roller and a second primary split draw roller, each having first and second web contacting sections which are independently rotatable, the first section of the first primary split draw roller being in rolling engagement with the first section of the second primary split draw roller at a first nip, the second section of the first primary split draw roller being in rolling engagement with the second section of the second primary split draw roller at a second nip. A first servo motor is coupled to the first web contacting section of the first primary split draw roller, and a second servo motor is coupled to the second web contacting section of the first primary split draw roller. The respective rotational speeds of the first and second servo motors are controlled by a controller. The split bag making machine also includes a secondary split draw roller positioned upstream of the primary split draw rollers, the secondary split draw roller having a first web contacting section corresponding to the first web contacting sections of the primary split draw rollers and having a second web contacting section corresponding to the second web contacting sections of the primary split draw rollers. The webs are driven by the secondary split draw roller at the upstream end of the synchronization section, and driven by the primary split draw rollers at the downstream end of the synchronization section.
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Simonetti John
Terranova Peter
Mansen Michael
Ro-An Industries Corporation
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