Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1991-05-13
1993-01-05
Watts, Douglas D.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
493197, 493233, 83337, 83349, 83564, B31B 2314
Patent
active
051766108
ABSTRACT:
A system for dampening deflections which occur in an elongate rotating fly-knife includes camming elements along the length of the beam carrying the fly-knife. A second beam spaced from the knife is also mounted for rotation and includes spaced apart camming elements adapted to rotate and contact the fly-knife camming elements at that point during the rotational cycle when the fly-knife will cut and/or perforate the material with which the apparatus of the present invention is employed. In one preferred embodiment of the invention, the system is used to perforate, slit or cut plastic film, e.g., in the manufacture of bags. In another preferred embodiment of the invention, the system is used with a coversheet winding machine. The rotating beams of the invention are preferably driven by a single motor to maintain registration of the knife camming elements with the support beam camming elements.
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Custom Machinery Design, Inc.
Jones Eugenia A.
Watts Douglas D.
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