Patent ID: 7371062

Claim:
A device for calibrating an extruded plastic profile having a calibration unit for the profiled strand coming-out of a molding profile nozzle, the calibration unit having a molding body, which encloses the profiled strand, having calibration surfaces pressing against the profiled strand and vacuum slots, which run in the calibration surfaces transversely to the passage direction of the profiled strand and are connectable to a partial vacuum source, wherein at least individual vacuum slots penetrate the molding body transversely to the passage direction and are closed off on an outside of the molding body in an airtight manner using a removable cover, wherein the vacuum slots can be connected with a vacuum source by way of vacuum channels provided in the molding body, and wherein removal of the cover allows the vacuum slots to be cleaned without disassembling the calibration unit or interrupting production of the plastic profile.