Exact Packaging, Inc.

Robert C Jenness, Jr

Ronald E Snyder

James P Vonderhorst

Philip Speranza

George W Baker, Jr

A high speed labeling machine is provided which includes a constant tensioning device for maintaining tension downstream of the metering roll at a substantially constant predetermined level thereby improving both metering and dispensing of labels. The constant tensioning device may also function as a driver for pulling the continuous web of material through the labeling machine thereby reducing the driving load on the metering roll, thus both providing more effective and accurate metering at a given web speed while also allowing higher web speeds to be achieved.

High speed labeling machine having a constant tension driving system

The labeling machine for dispensing labels from a continuous web of material to a plurality of articles is provided which includes a supply roll of labels, a dispenser for removing the labels from the continuous web, a drive drum for imparting a linear velocity to the web so as to move the web through the labeling machine while accumulating the web into a waste roll, and a driving control system, including a label position sensor, for alternately actuating and deactuating the driving device to move and terminate movement of the web, respectively, through the labeling machine. A web velocity compensator device is provided to compensate for variations in the linear velocity caused by, for example, the increase in the diameter of the waste roll on the drive drum so as to insure proper positioning of each of the labels to be dispensed relative to the dispenser upon deactuation of the driving device. The web compensator device may include a pivotable compensator arm for automatically moving the label position sensor device along the feed path relative to the web in response to an increase in drive drum diameter. Alternatively, web compensator device may include electronically controlling the time delay between sensing the web and stopping of the drive drum by controlling a variable time delay offset prior to deactuating the drive drum.

Labeling machine having a web velocity compensator device

A high speed labeling machine for dispensing labels from a continuous web of backing material having labels affixed thereto and applying the labels to a plurality of articles is provided. The labeling machine includes a supply station positioned adjacent a conveyor and a dispensing device and applicator assembly mounted on a support carriage mounted on a support arm and capable of high speed transverse movement across the conveyor for labeling articles positioned in a side by side arrangement. The continuous web of material is fed to the movable support carriage via a follower carriage mounted on the support arm which moves relative to the support carriage so as to maintain tension in the web traveling to and from the support carriage and associated dispensing and applicator devices. As a result, the dispensing device and applicator device can be moved relative to the supply station at high speed without dispensing labels, while at the same time maintaining tension in the web. The supply station is also movably mounted and may be automatically controlled to move longitudinally along the conveyor simultaneous with the transverse movement of the support carriage, thereby allowing the dispensing device and applicator to move through a variety of paths above the articles to permit a multitude of articles in a variety of arrangements to be quickly and effectively labeled. The labeling machine may also include a take-up device for accumulating the waste backing material including a pivotable link biased to apply controlled tension to the web of material.

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Westminster, MD, United States of America

Robert C Jenness, Jr