Machine and method for applying heat shrink labels

Details Machine and method for applying heat shrink labels Machine and method for applying heat shrink labels

B - Operations, Transporting

29

C

156/2.1

B29C 63/40 (2006.01) B65B 53/06 (2006.01) B65C 3/16 (2006.01)

Patent

CA 1254498

ABSTRACT OF DISCLOSURE Method and apparatus for heat shrinking projecting edges of heat shrinkable (but unshrunken) film onto articles such as cylindrical containers. The film is tightly wrapped around the bodies of the articles and the overlapping ends are held together by glue. The projecting edges of the articles are then heat shrunk onto the shoulders and/or curved lower ends of the bodies as the containers are transported and are caused to spin while being transported. In so doing the hot air is blown in a direction such that it does not blow directly onto the glue at the side seams. This may be accomplished by using a circular, turret type transport and by having blowers which blow hot air obliquely, rather than radially at the articles. Where the articles are closely packed, each article acts to shield the next article when its side seam is parallel to the flow of hot air.

460169

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