B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
226/46
B65B 1/00 (2006.01) B65B 3/26 (2006.01)
Patent
CA 1232883
A B S T R A C T Method and apparatus for monitoring and controlling production line filling of receptacles with a predetermined weight of variable density material. Each filling station comprises a balance (36) and a piston and cylinder volumetric dispenser (37). The piston rod (33) is actuated by a cam (34) which optionally includes a portion (341) which is adjustable. Resilient means (40) are interposed between the cam and the piston. While a receptacle (39) is engaged in a filling station the following operations take place in succession: the empty receptacle is weighed and at the same time the volumetric dispenser is filled with slightly more material than is to be dispensed; the material in the volumetric dispenser (37) is then transferred to the receptacle (39) and the receptacle is continuously weighed until it has received the set weight of material. The outlet from the dispenser is then closed, thus jamming its piston before it reaches the end of its stroke. The resulting forces are absorbed by the resilient means. Optionally, the amount material which is admitted to the dispenser prior to each filling operation is adjusted by acting on the said adjustable portion of the cam, to ensure that receptacle filling is stopped in the vicinity of a predetermined point on the cam or of the piston stroke.
468079
Etablissements A. Bertaud
Kirby Eades Gale Baker
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