DRY CALIBRATION DEVICE FOR EXTRUDERS

摘要

Described is a dry calibration device for extruders comprising a calibration head (2) having a calibration duct (3); the device also comprising a heat exchange jacket (5) positioned in contact with the calibration head (2) and suction means (9) associated with the calibration duct (3), whilst the heat exchange jacket (5) comprises a thermally conductive element (6) positioned in contact with an outer surface (4a) of the calibration head and forming a contact surface (6a) extending continuously along a longitudinal axis (6A) of extension of the calibration head (2).

主权项

1. A dry calibration device (1) for extruders, comprising:
a calibration head (2) having a calibration duct (3) in which an article of manufacture can be inserted, said calibration head (3) further including:
a longitudinal extension axis (A);an inner surface (4b) defining said duct (3); andan outer surface (4a) opposite to said inner surface (4b); a heat exchange jacket (5) placed in contact with said calibration head (2), said heat exchange jacket (5) comprising:
a thermally conductive element (6) placed in contact with said outer surface (4a) and defining a contact surface (6a) with said outer surface (4a), said contact surface (6a) extending without a break along said longitudinal extension axis (A); anda single thermally conductive element (6) of one piece construction, said thermally conductive element (6) fully surrounding said calibration head (2); and suction means (9) associated with said calibration duct (3),characterized in that said calibration head (2) has a non-negligible thermal capacity relative to the pipe to be calibrated.