| 摘要 |
A device (1) adapted to guide a tubular plastic film during the cooling stage is disclosed, in particular for a tubular plastic film produced by blown extrusion. The guide device (1) comprises a supporting structure (2) to be mounted around the bubble of extruded film, to which is hinged one end of a plurality of mobile arms (3) whose other end, in contact with the bubble of extruded film, carries guide means (4) for said bubble. Each mobile arm (3) consists of an articulated quadrilateral and preferably comprises means for a fine adjustment of the position of the guide means (4). The guide means (4) are advantageously interchangeable and the means for the fine adjustment of their position are adapted to vary the length of a member of the mobile arm (3). |
