Registration process

Details Registration process Registration process

B - Operations, Transporting

65

H

B65H 23/032 (2006.01) B31B 19/74 (2006.01)

Patent

CA 2126413

REGISTRATION PROCESS ABSTRACT OF THE DISCLOSURE The present invention features a high-speed registration system for the manufacture of plastic bags. The system has a registration apparatus that senses the leading and trailing edge of each sinusoidally-shaped tie pattern from a continuous web. Each sinusoidally-shaped tie is associated with an individual bag entity and, therefore, represents a midway point for each bag to be cut from the continuous web. The leading and trailing edge of each sinusoidally-shaped tie, therefore, is used to determine the center line of each bag. A plurality of center line determinations are averaged upstream of the sizing apparatus. When a detected entity finally reaches the downstream sizing apparatus, the cutting of the individual bag unit from the web is accomplished about an accurate, but "floating", center line.

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