Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Responsive to work material – the product or means engaging...
Patent
1979-10-09
1981-08-11
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Control means energized in response to activator stimulated...
Responsive to work material, the product or means engaging...
493 17, 493 22, 493 35, 493342, 493362, B31B 116
Patent
active
042831857
ABSTRACT:
Box blanks produced from a moving web by a paperboard corrugator are shingled on a stacker conveyor. The corrugator includes a shear which severs the web in response to a production run change signal into leading and trailing portions. A cut-off machine cuts the severed web portions into the box blanks. Box blanks cut from the leading portion of the severed web are part of the old production run. Box blanks cut from the trailing portion of the severed web are part of the new production run. The leading edge of the trailing portion of the severed web is tracked to the cut-off machine. The trailing edge of the first full size box blank of the new production run is detected at a first position relative to the stacker conveyor. The trailing edge of the first full size box blank is then tracked to a second position on the stacker conveyor. When the trailing edge of the first full size box blank reaches the second position, a command signal is generated. In response to the command signal, a retarding means retards movement, e.g., reduces speed, of the first full size box blank of the new production run on the stacker conveyor so that a separation is created between the old and new production runs on the stacker conveyor.
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Evans Donald J.
Woolston A. Brent
Coan James F.
Molins Machine Company Inc.
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