Apparatus for producing films stretched in-line
AssigneeWindmöller & Heilscher KG
InventorsMartin Backmann, Markus Bussmann, Karsten Golubski
Life of this patent
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Abstract
The invention relates to an apparatus for producing tubular films stretched in-line by blow molding with an extruder, a film blowing line, a lay-flat unit, an oscillating haul-off unit, and a stretching line for monoaxially stretching the film laid flat in machine direction. According to the invention, the stretching line is arranged above the extruder between the lay-flat unit and the oscillating haul-off unit.
Claims23
An apparatus for producing tubular films stretched in-line by blow molding comprising an extruder, a film blowing line, a lay-flat unit, an oscillating haul-off unit, and a stretching line for monoaxially stretching the film laid flat in machine direction, wherein
- the stretching line is arranged above the extruder between the lay-flat unit and the oscillating haul-off unit and, together with the haul-off unit, mounted on a platform situated vertically above the lay-flat unit, and
- the stretching line together with the haul-off unit provided downstream of the same in conveying direction is rotatably mounted on the platform with the haul-off unit being rotatably suspended from a traverse (31) of a tower (30), the haul-off unit includes a first frame (32) rotatably mounted from the traverse (31).
Dependencies are inferred from the claim text.