| 摘要 |
The invention relates to a tube guide device for film blowing systems, a tube extruded from a die being cooled and subsequently fed to squeeze rollers by means of a pair of five film guides which face one another in such a manner that the tube, after being laid flat, is wound by means of the squeeze rollers, the guides being arranged on a fixed part at their upper ends and in their lower region assuming a distance from one another. The invention is characterised in that the inner surfaces of the pair of film guides which face one another are designed as three-dimensional surfaces, the length of each path distance of each point on the tube circumference to the line on contact with the two squeeze rollers being equal.
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