Darlet Marchante Technologie S.a.

Darlet Marchante Technologies S.a.

Bruckner Maschinenbau Gmbh & Co. Kg

Andritz Biax S.a.s.

Marchante Moreno, Innocente

Innocente Marchante Moreno

Gilbert Trivero

The device () comprises four drawing cylinders () on which the film () passes and which are associated with press cylinders (), comprising: a first drawing cylinder () having a fixed axis (), a second drawing cylinder () having a fixed axis () which is offset in relation to the previous one, a third drawing cylinder () whose position is adjustable and a fourth drawing cylinder () having a fixed axis (). Said cylinders (A) are rotationally driven at differentiated speeds, such that a first drawing stage is formed between the second cylinder () and the third cylinder (), whereby the drawing distance (D) is preferably adjustable, and a second drawing stage is formed between the third cylinder () and the fourth cylinder (). The invention is used for the longitudinal drawing of synthetic films.

Longitudinal film drawing device

The invention relates to drawing systems using a series of jaws for the support, transport and drawing of the film (), which are supported and guided by rails and driven by endless chains (), connecting the jaws between the above. Each chain () is driven by two toothed wheels () of large diameter (D), one wheel () located at the beginning of the forward run () and the other wheel () located at the rear end of the return run () of the chain (). Each wheel () is provided with motorised rotational drive means, said means being synchronised with each other. Such a drive device finds application in high speed drawing machines.

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Le Bourget du Lac, France

Innocente Marchante Moreno