Persico Spa

Claudia Persico

Lorenzo Bergamo

Gaetano Donizetti

Rotational moulding machine () comprising a fixed frame (), a support arm () comprising a first () and a second portion () rigidly joined together, the support arm () being rotationally fixed to the fixed frame () only at the first portion () to rotate about a first axis of rotation () substantially horizontal, a movable frame () rotationally fixed to the support arm () to rotate about a second axis of rotation () substantially perpendicular to the first axis of rotation (), the movable frame () comprising a supporting portion () lying in a plane substantially perpendicular to the second axis of rotation (), and an actuation system () rigidly fixed to the movable frame () at the supporting portion () and structured to secure a mould () and rotate the mould () about a third axis of rotation () substantially perpendicular to the second axis of rotation ().

Three-axis rotational moulding machine

A mold for the rotational molding of manufactured articles of plastic material includes two half-molds, one of which is provided, on its surface, with an insert-holding device comprising a rod with a first end passing through the wall of the half-mold at a respective passage channel and axially movable for projecting inside the mold. The mold also comprises a first pneumatic circuit able to apply a predetermined pressure, positive or negative, inside the mold. At least one insert-holding device is operatively connected to a second pneumatic circuit able to apply a predetermined pressure, positive or negative, and is internally provided with a plurality of means to apply the predetermined pressure at the passage channel, so that at the insert-holding device the same predetermined pressure value which generates inside the mold by the first pneumatic circuit is applied.

Mould for the rotational moulding of plastic materials

A die for rotational pressing includes a breather device for connection of the interior of the die with the exterior and which has a passage between the interior and the exterior of the die equipped with a valve operated by an actuator piloted by a handling controller for opening the passage after a first step of the pressing process. The valve allows the breather of the internal pressure of the die and/or controlled injection of air under pressure into the die.

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Albino, Italy

Claudia Persico