Process and device for bagging a certain number of grains in each sack

A bagging device for a predetermined number of grains per sack with heterogeneous granulometry, particularly seed grain, including a member for conveying the grain by gravity toward a component for filling sacks with the grain, comprising:

• a grain-collecting nozzle arranged on the grain conveying member,
• a horizontal vibrating plate whose side receiving the grain is equipped with channels, with vibrations ensuring distribution of the grain in each of the channels and a shifting movement of the grain,
• a chute containing channels into which the grain slides, with the chute being inclined at an angle so that the grains in it are subjected to an almost free fall,
• a counter located perpendicular to each channel of the chute,
• a weighing hopper that takes the grain after counting,
• a controller for controlling the vibrations of the horizontal plate,
• a first weighing apparatus for weighing the grain counted,
• a calculator that takes data related to the number of grains and data related to the mass of that number of grains and with these data makes it possible to find a theoretical mass of a predetermined number of grains in a sack, and
• a second weighing apparatus for weighing the bag, the second weighing apparatus having an index value which is the theoretical mass found by the calculator, when that theoretical mass is measured by the second weighing apparatus, the second weighing apparatus orders the sack filling to stop.