Metering system automatically controlled by microcomputer for automatically dispensing foodstuffs and liquid products intended for livestock

摘要

The invention relates to a system making it possible automatically to dispense, in battery farming, amounts of liquid foodstuffs which are individualised for each animal. It consists of a cylinder 2 in which a piston 1 is actuated by a jack 8. A stop 13 of variable length limits the top position of the piston 1 and creates a variation in the metering. A screw/nut system 3-4 causes this difference in length of the stop 13 and is driven by a stepper motor 5, itself controlled by a microcomputer. The data necessary for reversing the movement of the piston 1 are emitted by two sensors 10 and 11 specifying the arrival of the jack 8 at its end of travel. Filling of the cylinder 2 is controlled by opening the ball valves 6, and the delivery of the metered quantity obtained by lowering of the mobile block 7. IMAGE