Process for determining the forces arising in an injection...

Details Process for determining the forces arising in an injection... Process for determining the forces arising in an injection...

B - Operations, Transporting

29

C

B29C 45/77 (2006.01) B29C 45/76 (2006.01)

Patent

CA 2225055

For determination of the forces arising at a feeding means in an injection moulding machine for plastic materials, a first static sensor is provided for determining at least the forces arising during the material preparation stage. A further force sensor detects in essence the forces arising during injection and, as soon as the first measured value reaches a limit value F1, the first static sensor passes on the further detection of the forces to a further sensor, wherein the limit value F1 at the same time serves as calibration value for the further sensor (Fig. 6).

Pour la détection des forces s'exerçant au niveau d'un organe d'alimentation d'une presse d'injection de plastique, l'invention décrit un premier capteur statique destiné à détecter au moins les forces s'exerçant lors du traitement de la matière. Un autre capteur de force détecte essentiellement les forces s'exerçant lors de l'injection et, dès que la première valeur mesurée atteint une valeur limite F1, le premier capteur statique confie la détection ultérieure des forces à l'autre capteur, la valeur limite F1 servant en même temps de valeur d'étalonnage pour ce dernier.

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