The hydraulic RIMI 3RP models are new designed machine, capable of obtaining bent plates, cones or polycentric pipes. Their characteristic is the planetary movement of the bending rolls around a shaft, while approaching to the top roll.
The rotating movement of the bending rolls is obtained by two couples of hydraulic cylinders, connected to the rolls by means of conrods.
A particular...
The hydraulic RIMI 3RP models are new designed machine, capable of obtaining bent plates, cones or polycentric pipes. Their characteristic is the planetary movement of the bending rolls around a shaft, while approaching to the top roll.
The rotating movement of the bending rolls is obtained by two couples of hydraulic cylinders, connected to the rolls by means of conrods.
A particular study has been dedicated to the position of the contact points between ROLL and PLATE, in order to reduce as much as possible the initial flat part, during the difficult pre-bending operation.
The bottom rolls are driven in rotation by a group made up by HYDRAULIC MOTOR AND PLANETARY REDUCTION GEAR, connected on the motor shaft of the transmission planetary system. That system is located in the big frame.
The top roll is driven by another group made by HYDRAULIC MOTOR AND PLANETARY REDUCTION GEAR, that automatically modifies its speed, according to the different working conditions, up to being automatically excluded in the plate feed-in.
The parallelism of the bending rolls in relation to the top roll is given by a particular hydraulic system, constantly controlled by means of a proportional valve, that controls all the rolls positions during the bending operations.
The bending rolls can also approach to the top roll in an unparallel position, in order to work cones. The parallelism is quick and easy to be adjusted.
The end product can be taken out by dropping the support (drop-end), driven by an hydraulic cylinder, directly from the control desk.