B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/748
B29C 53/20 (2006.01) B29C 53/10 (2006.01)
Patent
CA 1248725
ABSTRACT Apparatus for flattening and taking off blown continuous plastic tubular films made by means of a stationary film-blowing head comprises flattening plates and squeeze rolls, which are pivotally movable in mutually opposite senses through at least approximately 360 degrees about the axis of the tubular film which is supplied. At least two deflecting rollers for deflecting the tubular film through about 180° and at least two turning rods for deflecting the tubular film through about 180° and for effecting a simultaneous change in direction are disposed in alternation behind each other between the flattening plates and squeeze rolls, on the one hand, and a pair of stationary feed rolls, on the other hands and are mounted in such a manner on supports which are pivotally movable relative to each other about the axis of rotation for the flattening plates. To facilitate the threading of the leading end of the extruded tubular film through the flattening and take-off apparatus before the start of the film-blowing plant, the supports comprise side arms , which are approximately equal in length, the deflecting rollers and turning rods are mounted in and extend between said arms, and the deflecting rollers and turning rods are slidable in tracks of the side arms in inward and outward directions and adapted to be locked in their inner and outer positions.
503674
Marks & Clerk
Windmoller & Holscher
LandOfFree
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