Patent ID: 6066080
Filing Date: 2000-05-23
Classification: B31B

Abstract:
A method of automatically gluing a heat shrinkable plastic film onto a bottom of a rigid container from a plurality of containers, each container being open at its upper part and having a rectangular or square horizontal section, the method comprising:displacing the containers one after the other on an endless conveyor which extends in a longitudinal direction of advancement;measuring for each container advancing on the conveyor, the value of at least one of its height and a transverse dimension which is perpendicular to the direction of advancement; andsetting from the measured value at least one of the vertical position and the transverse extension of a glue application device and of a plastic film applicator device as a function of the corresponding dimensions of each container such that at least one of conditions a) and b) are satisfied, a) said devices are positioned as close as possible to an upper edge of each container, and b) the transverse extension of said devices corresponds to the transverse dimension of each container.