B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 49/70 (2006.01) B29C 47/00 (2006.01) B29C 53/10 (2006.01) B29C 53/20 (2006.01)
Patent
CA 2029195
ABSTRACT An apparatus for flattening and taking off a plastic tubular film made by a blow- molding process by means of a stationary film-blowing head, in which apparatus flattening plates and squeeze rollers are reversibly pivotally movable about the axis of the tubular film which is fed and which apparatus is succeeded by a stationary winding or afterprocessing apparatus and comprises a radially outer touring rod, which is parallel to and reversible with the squeeze rollers and a radially inner turning rod, around which the tubular film is trained between the squeeze rollers and the winding or afterprocessing apparatus or a deflecting/roller for feeding the tubular film to the winding or afterprocessing apparatus wherein said reversible deflecting roller, said turning rod and any stationary deflect- ing roller extend in planes which are parallel to the plane in which the squeeze rollers are pivotally movable and the distance from the reversible deflect- ing roller to the axis of rotation is larger in any possible angular position than the distance from the film-contacting portion of the turning rod, which is pivoted close to the pivotal axis, to the pivotal axis, and the angle of the pivotal movement of the turning rod is one-half the angle of the pivotal movement of the deflecting roller, characterized in that squeeze rollers and the reversible deflecting rollers on the one hand, and the turning rod, on the other hand, are movably mounted in a carrying frame or the like on shafts or pivots having aligned center lines and the carrying frame is formed between the mounting means with a recess which intersects the center lines and is disposed close to the plane in which the turning rod is pivotally movable.
'chelpohl Fritz
Marks & Clerk
Windmoller & Holscher
LandOfFree
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