Patent ID: 7641830
Filing Date: 2010-01-05
Classification: B29C

Abstract:
1. A method of continuously feeding film pieces from a roll of film, wherein the film having a head end, a tail end, and a plurality of cut-off ends between the head end and the tail end, the film being mounted to a film feeding machine and being vertical to a horizontal film feeding direction of the film feeding machine, the method comprising steps of: a) drawing the head end of the film out and fixing the head end at a first position inside the film feeding machine; b) holding the head end of the film and drawing the film along the film feeding direction to move the head end to a second position inside the film feeding machine and close to a die assembly from the first position, and then holding the film to locate one of the plurality of cut-off ends between the first position and the second position, wherein the die assembly is horizontally parallel to the film feeding direction of the film feeding machine; c) cutting the film off at the cut-off end at the film feeding machine to produce a film piece, the film piece having a first end, which is the head end of the film, and a second end, which is the cut-off end of the film; whereby, the residual of the film has a new head end at the cut-off end; d) holding and moving the film piece to a third position corresponding to the die assembly and then repeating the aforesaid steps a) through d) for continuously feeding the film pieces.