Dosage apparatus and operating method for a dosage apparatus

摘要

Dosage apparatus for a machine adapted for manufacturing sand cores, comprising an inlet (1) for receiving bonding agent, a vessel (2) where the received bonding agent is stored, a conveying unit (3) for conveying the bonding agent from one site to another within the apparatus (100), control means for controlling the conveying unit (3) and an evacuation region (5) through which the bonding agent coming from the vessel (2) is evacuated towards its final destination. The conveying unit (3) comprises a variable-frequency drive, and the apparatus (100) comprises a scale (6) that is adapted for detecting the mass of the bonding agent that is supplied and is communicated with the control means, the control means being adapted for controlling the evacuation of the bonding agent from the vessel (2) depending on the detections obtained with the scale (6).