Transport device for a continuous moving sheet, in particular stretching device for a plastic film webs
AssigneeBrüCkner Maschinenbau GmbH & Co. KG
InventorsJurgen Breil, Manfred Steffl
Life of this patent
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Abstract
An improved transport device for a moving material web, in particular a stretching system for plastic film webs which is in particular suitable for high circulating speeds, is distinguished by the fact that a guide rail system (3) comprising at least one guide rail (3', 3") and along which tenter elements (1) can be moved by means of a linear motor drive (5), is integrally incorporated in the relevant linear motor (5', 5"). The respective tenter element (1) is supported with respect to the guide rail system (3) by means of a sliding bearing or a combined sliding and roller bearing.
Claims16
A transport device for a moving material web comprising:
- a guide rail system having a first guide rail;
- a tenter element for clamping and retaining the moving material web and supported by said first guide rail;
- a linear motor drive including a first linear motor;
- said first guide rail being integrally incorporated in said first linear motor;
- and
- a sliding bearing carried by said guide rail system between said tenter element and said first guide rail for enabling sliding movement of said tenter along said guide rail.
Dependencies are inferred from the claim text.