B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
18/946, 138/41.1
B29B 9/02 (2006.01) B29B 9/06 (2006.01) F15B 9/02 (2006.01)
Patent
CA 2023073
Method of maintaining a constant predetermined contact pressure on elements for cutting under water in granulator machines and relevant machine with control and actuation device for said pressure . Abstract Method of maintaining a constant, predetermined contact pressure on ele- ments for cutting under water in granulator machines, comprising the following phases: - bringing the blades of the cutters into bearing against the die, - applying to the blades a predetermined thrust force of constant value towards the die, - setting the drive shaft in rotation, - detecting, moment by moment, the value of the hydrodynamic thrust force generated by the rotation of the cutters in the water and acting on these cutters towards the die, - applying to the blades of the cutters a force in the opposite direction to said hydrodynamic thrust force and of a value equal to the value of same, and granulator machine for cutting under water, adapted for the application and control of a constant pressure according to the above-described method, comprising actuator means with associated feed adapted for applying axial thrusts to the drive shaft for the cutters within a slidable bushing, means for detecting the hydrodynamic thrust force acting on the cutters and regulator means adapted for regulating the force supplied to said actuators.
Pomini Farrel S. P. A.
Sim & Mcburney
LandOfFree
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