Weighing project balances pets diet
15 Jan 2000
Spillers, the pet food suppliers, needed a loss in weight system at its Driffield site, East Yorkshire, to weigh dried vegetables before addition to the bulk meat ingredient at accuracy levels of +/-1 per cent.
Rospen undertook the £100 000 project and engineered a new system comprising of bag tip stations, elevating powder transfer conveyors, loss in weight feeders and mezzanine flooring.
The result was a system that controls the ratio of vegetable ingredients to the weighted rate of meat in accurate proportions via three standard metering screw feeders and hoppers rigidly mounted to Rospen weigh platforms.
The hoppers are filled within 30seconds through flexible sleeves. Once the contents of the hoppers have settled, the weights are checked and a signal then starts weight loss from the hoppers.
The metering feeder starts and the actual falling weight of product is checked against the desired rate. The speed of the metering feeder is adjusted accordingly to +/-1 per cent through a colour touch screen display.
