The machine for continuous automatic weight control is essentially made up of: A base which has the task of supporting the scale and the device for transporting the objects. A highly sensitive and prompt comparison scale, equipped with an electromagnetic detector which transforms the position assumed by the scale plate, weighed down by the weight passing on it, into an electrical signal. A belt conveyor, and a projector - photocell unit that signals the instant in which the object is about to leave the weighing pan.
SECTORS OF USE:
Pharmaceutical, chemical, cosmetics, food, dietary, medical devices, manufacturing.
The scale is inserted in a conveyor line for objects to be checked of any nature and shape. The passing object takes a certain time to cover the entire scale; this time, although small, is sufficient for the scale to settle in the position proportional to the weight of the object. When the object is about to leave the weighing pan, it intercepts a light beam that passes through the conveyor. The phototransistor receiver, thus obscured, supplies the electronic circuit with the command to perform the weight reading at that precise moment. This weight value is immediately compared with the two values, lower and upper, set as limits of the allowed tolerance. This comparison gives rise to the decision of the machine to accept or not the weigh, that is to say whether to let the object continue undisturbed, or to divert it or expel it to the right or left of its path, depending on whether its weight is found to be in excess or in defect compared to to the predetermined tolerance.
Year of construction: 1988
Operating speed m/min 6,8
Compressed air N/cm2 60
Voltage Volt 220