| 摘要 |
A volumetric dispensing apparatus is disclosed wherein a dispensing head having a plurality of fill cavities formed around the periphery is mounted within an annular cavity housing concentric with the head and forming the outer peripheral side of the cavities. An inclined bottom is provided for each cavity and a lateral discharge opening in the housing allows sequential release of the measured batches from the fill cavities. Draft is provided along the side surfaces to provide an enlarged top fill opening and an enlarged lateral discharge side to prevent bridging of product and to promote clean release of the batch. The dispensing head is mounted on a column and is adapted for easy removal for cleaning. An annular collar supports the cavity bottoms for simultaneous adjustment by a central jackscrew device. A rotary wiper removes the loose material from the bottom of the cavity housing and deposits the same through a receiving opening. A product limiting fence extends across a bowl-type hopper mounted on the top of the dispensing head; said fence dividing the hopper into fill and discharge sections. Conveyor means is provided to feed product into the hopper at a fill point whereat the empty fill cavity emerges under the fence. A centrally located cone urges the product radially outward and handle means at the apex of the cone facilitates the dispensing head removal for cleaning. A control arrangement is provided for the feed conveyor whereby the speed of the conveyor is increased upon detecting a thinning out of product and decreased to a normal level upon detecting a proper level of product in the hopper. The detecting finger is mounted substantially at the midpoint between the fill point of the fill section and the wiping point to sense the approximate middle of the spiral wedge of product formed by rotation of the dispensing head.
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