High speed depositor with positive displacement pump and stepping motor

Abstract

The high speed depositor allows the manufacturing plant, e.g., a modern large bakery, to double the production of the batter, filling and icing lines. The depositor is comprised of a food quality positive displacement pump, a high torque stepping motor, a microprocessor based controller and a depositing manifold with individual valves. Other supporting apparatus, which are inputs and outputs of the controller, include a rotary encoder to measure the degrees of revolution of the pump, an air solenoid valve to apply air (motive force) to the stepping motor and an on/off switch to start and stop the depositing operation. Each nozzle on the depositing manifold has a flow control device to equalize the flow and therefore each cup weight of product deposited into the baking pan. A feed tank or hopper supplies a constant flow of product to the suction of the depositor pump. The manifold is typically mounted a few inches above a conveyor which carries baking pans underneath the manifold nozzles. The columns of baking pan cups pass directly underneath the nozzles and the product configuration downloaded to the depositor controller causes it to make accurate deposits into each cup in each row. The stepping motor causes the pump to turn the exact degrees of revolution necessary to deliver the desired cup weight into each of the baking pan cups.