METHOD OF AND DEVICE FOR FILLING ARTICLES WITH DOWN Russian patent published in 1995 - IPC

FIELD: light industry; production of down-and-feather articles. SUBSTANCE: method comes to feeding down into weighed out container, weighing and recording mass of down in container. Then down is delivered into article cells in portions. Mass of down delivered into cell is found from formula: where m mass of down delivered into cell, kg; V - down flow velocity, m/s; S down-air duct cross section area, m²; ρ air stream density, kg/m³; t time taken for filling cell with down, s. Device for filling articles with down has frame 1, two cantilever springs 2, down weighing container 3, mass pickup 4, branch pipe 5, flexible insert 6, velocity pickup 7, valve 8, gates 9 and 26, density pickup 10, down-air ducts 11 and 13, discharge fan 12 with tip 14, branch pipe 15, discharge valves 16 and 20, feeder-accumulator 17, loosener 18, flag 19, down amount setting device 21, comparator 22, computer 23, correction unit 24 and comparator 25. EFFECT: enhanced operation reliability. 2 cl, 1 dwg