Device for cooling and thermal conditioning of a tubular object

A device for post-mold cooling and/or thermal conditioning of a hot tubular object, outside the injection mold with which the tubular object was produced, provided with a first closed end and a second open end with a ring projecting radially from the cylindrical surface of the tubular object in the proximity of the second open end and constituting the maximum radial projection of the tubular object, wherein the device comprises:

• a tubular internal cavity provided with an open end for the introduction of said tubular object, shaped to accommodate a first portion of said tubular object set in the proximity of the first closed end and to control the deformations thereof;
• a tubular element is extended coaxial from the tubular internal cavity and the tubular element is shaped to accommodate a second portion of said tubular object in the vicinity of said second open end;
• an internal supporting surface of the tubular element is shaped to contain and/or control, by means of contact on the ring the deformations that are produced, in a direction transverse to the axis, during cooling and/or thermal conditioning of said tubular object;
• and
• the internal supporting surface has a dimension such that, at the temperature of insertion of the hot tubular object into the internal cavity, there is set at least one minimum radial gap or a pre-set maximum radial interference.