Patent ID: 6751931
Filing Date: 2004-06-22
Classification: B65B

Abstract:
A method for wrapping groups of products with stretch film comprising the following steps:forming groups of products having a front and a longitudinal dimension following a line of feed; winding a stretch film unrolled from a first roll around first means for preforming a wrapping positioned inside a film wrapping area and along the product group line of feed; forming a first tubular portion of stretch film from the stretch film wound around the first means for preforming a wrapping; separating said first tubular portion from the stretch film unrolled from the first roll; stretching the first tubular portion of film by moving the first means for preforming a wrapping to create an access area having a transversal dimension that is larger than the front of a single group of products moving along the feed line; inserting at least the single group of products into the stretched first tubular portion through the access area; releasing the first tubular portion to allow the first tubular portion to shrink in such a way that at least the single group of products is wrapped in the film portion to form a wrapped package; expelling the wrapped package.