FIELD: mechanics.
SUBSTANCE: calibration device incorporates a profiled casing. Calibration surfaces abut on the profiled rod. The aforesaid calibration surfaces feature vacuum slots arranged crosswise relative to the travel direction to provide for connection with the vacuum source. Separate vacuum slots penetrate through the aforesaid profiles casing cross the material travel direction. The aforesaid vacuum slots are closed on the profiled casing by a detachable coat.
EFFECT: uniform rarefaction in vacuum slots and cleaning of slots without interrupting production.
13 cl, 8 dwg
