METHOD AND APPARATUS FOR SHRINKING END SEAMS AROUND A PRODUCT

摘要

A method for shrinking selected spaced apart portions of film wrapped around a series of products of similar dimension being conveyed by a conveyor along a path in a selected direction is provide. The method involves the steps of: (a) indexing the conveyor and stopping the conveyor; (b) while the conveyor is stopped, causing heated fluid to flow from one or more nozzles so that a first heated fluid flow impinges upon selected portions of film in the vicinity of a product leading edge and a second heated fluid flow impinges upon selected portion of film in the vicinity of a product trailing edge; (b) repeating steps (a) and (b) multiple times so that, for multiple instances of the product, selected portions of film along both trailing and leading edges of each instance of the product are caused to shrink.

主权项

1. A method for shrinking selected spaced apart portions of film wrapped around a series of products of similar dimension being conveyed by a conveyor along a path in a selected direction, said method comprising the steps of:
(a) indexing the conveyor and stopping the conveyor; (b) while the conveyor is stopped, causing heated fluid to flow from one or more nozzles so that a first heated fluid flow impinges upon selected portions of film in the vicinity of a product leading edge and a second heated fluid flow impinges upon selected portion of film in the vicinity of a product trailing edge; (c) repeating steps (a) and (b) multiple times so that, for multiple instances of the product, selected portions of film along both trailing and leading edges of each instance of the product are caused to shrink.