Pelletizer with automatic knife adjustment

B - Operations – Transporting – 29 – B

Patent

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Details

B29B 9/06 (2006.01) B26D 7/26 (2006.01) B29C 47/92 (2006.01) G05B 19/4065 (2006.01)

Patent

CA 2132534

A plastic resin pelletizer system and method for controlling the position of the pellet cutting knife blades (46) in relation to a die plate face (12) includes vibration detection pick-up in the form of a piezoelectric accelerometer (200) mounted to the pelletizer die plate (12). Characteristic frequencies output is identified as representing the condition of contact between the blades and the die face, and the amplitude of the characteristic signature is used to indicate the extent or degree of pressure of the contact, in controlling the position of the knives with respect to the die plate.

Granulateur de résine plastique et méthode de réglage de la position des lames (46) du couteau tranchant les pastilles par rapport à la face de la plaque (12) de la filière. Il comprend un détecteur de vibrations sous la forme d'un accéléromètre piézoélectrique (200) fixé à la plaque (12) de la filière du granulateur. La production de fréquences caractéristiques est identifiée comme correspondant à une situation où il y a contact entre les lames et la face de la filière, et l'amplitude de la signature caractéristique est utilisée pour indiquer l'étendue ou le degré de pression du contact, lors du réglage de la position des couteaux par rapport à la plaque de la filière.

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