Piston-type measurement charging device
The present invention relates to a kind of drug packages equipment, specifically about the measurement charging device in a kind of drug packages technological process.The present invention is applicable to the quantitative package equipment of medicine, also is applicable to the quantitative package equipment of granular goods such as food, chemical raw material.
In the drug packages technological process, measurement charging device is the key mechanism in the drug packages equipment.The measurement charging device of existing drug packages equipment mainly is made up of feed bin, blanking platform, flashboard, hopper and support.Feed bin is positioned at above the blanking flat-bed, can on the blanking platform, move, and the blanking platform is provided with metered fuel orifice, and hopper is positioned at the metered fuel orifice below, and flashboard is arranged between metered fuel orifice and the hopper.When feed bin moves to when making its feed opening aim at blanking flat-bed metered fuel orifice; Medicine in the feed bin flows in the blanking flat-bed metered fuel orifice; Feed bin moves and makes its feed opening leave the metered fuel orifice position then; Remove flashboard this moment and make the medicine in the metered fuel orifice flow into hopper, obtain the medication amount of a metered fuel orifice volume unit.Feed bin moves with the folding condition of flashboard and accomplished by the control circuit automatic guidance, and is easy to operate, efficient is high.Its major defect is: when the feed bin feed opening is aimed at blanking flat-bed metered fuel orifice; Medicine in the feed bin flows freely in the metered fuel orifice; Behind free jar of full metered fuel orifice of powdered drug; The fillet place, bottom surface that between metered fuel orifice and flashboard, constitutes is easy to exist little air cavity, makes actual drug amount that metered fuel orifice come out less than the theory setting value, causes measuring accuracy low.And Packing Unit is all fixed at every turn, and promptly the volumetric quantity of metered fuel orifice can not be regulated the metered fuel orifice volume according to the needs of different pharmaceutical Packing Unit, can not be applicable to the packing of Different Package amount medicine simultaneously.
Summary of the invention
The objective of the invention is shortcoming, the piston-type measurement charging device that a kind of measuring accuracy is high, can be applicable to the different pharmaceutical Packing Unit simultaneously is provided to the prior art existence.
The technical scheme that realizes the object of the invention comprises support, moves feed bin, blanking platform, hopper; Move on the feed bin and be shaped on tapping channel; Mobile feed bin can move on the blanking platform, is shaped on metered fuel orifice on the blanking platform, mainly is in metered fuel orifice, to be provided with metering piston; This metering piston by be installed on the support transmission mechanism control its in metered fuel orifice, move up and down, be shaped on dumping pit moving on the feed bin.
In above technical scheme, mobile feed bin can move by left and right directions on the blanking platform, and hopper is located at the right side of metered fuel orifice, and dumping pit is positioned at the right side of tapping channel.
In technique scheme, be provided with position adjusting mechanism in the control setup of metering piston.
The present invention's beneficial effect compared with prior art is: metering piston mechanism is set in metered fuel orifice; The when filling with substance metering piston moves down under its transmission mechanism control; The powder-material thing piston that is measured is drawn in the metered fuel orifice, does not have air cavity and exists, and its measuring accuracy is high; The moving displacement of metering piston in metered fuel orifice can carry out regulating control through its position adjusting mechanism according to the size of pharmaceutical pack loading amount, realizes the packing to the different pharmaceutical Packing Unit.
Description of drawings
Fig. 1 is the present invention's structure of process scheme drawing of feeding.
Fig. 2 is that the present invention moves the structural representation that feed bin moves on to left position.
Fig. 3 is the structural representation that metering piston of the present invention advances material dumping pit.
Fig. 4 is the structural representation of the present invention when the material in the dumping pit is put hopper into when moving feed bin and moving on to location right.
The specific embodiment
Piston-type measurement charging device as shown in Figure 1; Comprise support, move feed bin 3, blanking platform 4, hopper 8, move on the feed bin 3 and be shaped on tapping channel 2, can on blanking platform 4, move; Be shaped on metered fuel orifice 5 on the blanking platform 4; In metered fuel orifice 5, be provided with metering piston 6, this metering piston 6 by be installed on the support transmission device 7 control its in metered fuel orifice 5, move up and down, on mobile feed bin 3, be shaped on dumping pit 1.Moving feed bin 3 can move by left and right directions on blanking platform 4, and hopper 8 is located at the right side of metered fuel orifice 5, and dumping pit 1 is positioned at the right side of tapping channel 2.When mobile feed bin 3 moves on to when the right, its tapping channel 2 aligns with metered fuel orifice 5, this moment metering piston 6 under transmission device 7 drives to moving down; Material is sucked in the metered fuel orifice 5; Under the suction of metering piston 6, material is difficult for producing air chamber in the bottom of metered fuel orifice 5, makes accurate measurement.When mobile feed bin 3 moved on to the left side, its dumping pit 1 alignd with metered fuel orifice 5, and the bore of dumping pit 1 is equal to or greater than the bore of metered fuel orifice 5, and is as shown in Figure 2.At this moment, metering piston 6 upwards pushes away under transmission device 7 drives, and the material in the metered fuel orifice 5 is advanced in the dumping pit 1, and is as shown in Figure 3.When mobile feed bin 3 moved on to the right, dumping pit 1 alignd with hopper 8, and the material in the dumping pit 1 is put into hopper 8, and tapping channel 2 aligns with metered fuel orifice 5 simultaneously, and the next circulation of beginning is as shown in Figure 4.Moving the mobile working process of feed bin 3 is accomplished down by the control of control circuit and transmission device.Be provided with position adjusting mechanism in the control setup of metering piston 6, the displacement that this position adjusting mechanism control metering piston 6 moves down through the adjusting to position adjusting mechanism, is realized the packing of Different Weight material.