| 摘要 |
The invention relates to a device for cooling and calibrating plastic profiled pieces, comprising a housing ( 13 ) that has an entry opening and an exit opening for the profiled piece ( 8 ) to be treated, and comprising a sleeve ( 12 ), which it is placed inside the housing, connects the entry opening to the exit opening, and which surrounds a passageway ( 24 ) that essentially corresponds to the outer contour of the profiled piece ( 8 ) while enabling the profiled piece ( 8 ) to be guided therein. Said sleeve, in essence, completely surrounds the profiled piece in the area of the device. The inventive device also comprises a vacuum system for generating a vacuum inside the gap between the profiled piece ( 8 ) and the sleeve ( 12 ) that is connected to openings ( 14, 15 ), which have small dimensions and are provided in the sleeve ( 12 ). Finally, the device comprises at least one interior space ( 25 ), which is filled with a cooling medium when the device is in operation and which is connected to an inflow opening ( 17 ) and to an outflow opening ( 18 ) for a cooling medium in order to produce a flow of the cooling medium inside the interior space ( 25 ). An improved cooling capacity can be achieved by virtue of the fact that the sleeve ( 12 ) has at least one thin-walled section, which separates the passageway ( 24 ) from the interior space ( 25 ), and that openings ( 14, 15 ) are provided in this section that connect the passageway ( 24 ) to the interior space ( 25 ).
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