Device and method for adjusting a cutting gap

B - Operations – Transporting – 26 – D

Patent

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Details

B26D 7/26 (2006.01)

Patent

CA 2340359

The invention relates to a device for adjusting the cutting gap between a rotor (1) with a cutting blade (11) which can be rotated about a rotor axis (10) and a lockable counter-blade body (12) which bears a cutting edge (9). Said counter-blade body can be adjusted by an adjusting mechanism which operates in opposition to the cutting blades (11) of the rotor in a perpendicular direction in relation to the rotor axis, in order to optimise the cutting gap. Said adjusting mechanism has a carriage (13) which is guided in a linear guide (8) and the linear guide (8) is positioned at a slight angle to the rotor axis (10) parallel. The counter-blade body (12) is either located on the carriage (13) in such a way that the parallel position of the cutting edge (9) and cutting blade (11) is maintained, or a U-shaped counter-blade body (12) is provided, whose limbs (14, 15) are forced apart elastically by pressure elements (6).

L'invention concerne un dispositif pour le réglage du jeu de coupe entre un rotor (1) tournant autour d'un axe de rotation (10) et présentant une lame (11) et un corps de contre-lame (12) à bloquer portant une arête coupante (9). Le corps de contre-lame (12) peut être réglé par rapport aux lames (11) du rotor au moyen d'un mécanisme d'ajustement agissant perpendiculairement à l'axe du rotor, afin d'optimiser le jeu de coupe. Le mécanisme d'ajustement présente un chariot (13) guidé dans une coulisse linéaire (8) et la coulisse linéaire (8) est placée selon un angle s'écartant légèrement de la parallèle à l'axe de rotor (10). Le dispositif selon l'invention est caractérisé en ce que le corps de contre-lame (12) est monté sur le chariot (13) de telle façon que le parallélisme entre l'arête coupante (9) et la lame (11) est garanti ou en ce que le corps de contre-lame (12) a une forme en U et que ses branches (14, 15) sont écartées élastiquement par des éléments de pression (6) pour le réglage du jeu de coupe.

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