초록 ▼

For the metered filling of bulk material, especially liquids, into receptacles, especially glass receptacles, there is provided a filling station to which a conveying device leads the receptacles, which are to be filled, individually or in groups. A weighing device determines before the start of the

For the metered filling of bulk material, especially liquids, into receptacles, especially glass receptacles, there is provided a filling station to which a conveying device leads the receptacles, which are to be filled, individually or in groups. A weighing device determines before the start of the filling operation the tare of the receptacles which are to be filled, and blocks the feeding of bulk material when a specified gross weight has been reached. The conveying device moves the receptacles preferably by means of worm conveyers which are lifted off the receptacles during the weighing and filling operation.

대표청구항 ▼

A device for the metered filling of bulk materials and particularly liquids in receptacles comprising: first and second weight metering units each having: (a) filling means for successively feeding the receptacles with bulk material; and (b) means for sensing the weight of the receptacles and for bl

A device for the metered filling of bulk materials and particularly liquids in receptacles comprising: first and second weight metering units each having: (a) filling means for successively feeding the receptacles with bulk material; and (b) means for sensing the weight of the receptacles and for blocking the filling means when a predetermined combined weight of the receptacle and material in the receptacle has been exceeded; said means for sensing and blocking having: (i) first and second electric weight sensors spaced from each other by a first distance and capable of generating a signal corresponding to the weight of a receptacle and its contents being weighed thereby; (ii) a signal sample and hold circuit coupled to each weight sensor; and (iii) an adding circuit; and (c) flow control means to selectively allow flow of materials from the filling means and block flow of materials from the filling means; a first frame; means mounting the filling means to the first frame; conveyor means for supplying the first and second receptacles groupwise to the weight metering units for simultaneous feeding with bulk material, said conveying means having: (a) conveyor means on a first side of the weight sensors and extending in a direction of conveyance of the receptacles; and (b) means mounting the conveyor means to the first frame; a second frame separate from and independent of the first frame and the filling means; means for mounting the weight sensors to the second frame; a plurality of pushing surfaces associated with the transport means for engaging the receptacles, said plurality of pushing surfaces spaced one from the other by the first distance; means for operating the conveyor means intermittently to advance the pushing surfaces and thereby the receptacles in the conveying direction; means for moving the pushing surfaces with the first and second receptacles situated over the first and second sensors away from the receptacles; said signal sample and hold circuit triggerable by the conveyor means when the pushing surfaces are moved away from the receptacles to store a tare signal value corresponding to the empty weight of a receptacle associated therewith to be filled and after storage of the tare signal value releasing the filling means to fill the recepatcle; a settable nominal value generator for storing a net weight signal value, said adding circuit adding the tare signal value and the net weight signal value; and a comparator circuit coupled to the weight sensor and the adding circuit and causing the flow control means to block flow of material from the filling means when a signal of the weight sensor represents a higher weight than the signal of the adding circuit.