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Working principle of automatic quantitative packaging machine:

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the material is added into the weighing bucket by the feeding mechanism (pneumatic gate). After receiving the weight signal from the sensor, the controller controls it according to the preset program value. At the beginning, the material is fed quickly (at the same time of fast feeding, medium feeding and slow feeding); When the weight is ≥ (target value – rough metering value), stop the signal output of fast charging and enter the medium speed (medium charging and slow charging at the same time); When the weight is ≥ (target value – fine metering value), stop the signal output of intermediate feeding and enter the slow feeding (slow feeding); When the weight is ≥ (target value – overshoot value), stop the slow charging signal output, the feeding door is completely closed, and the constant value weighing is completed. After the bag clamping signal is input, the unloading door of the weighing bucket will be opened automatically. When the weight is ≤ the set value of zero position, the unloading door of the weighing bucket will be closed automatically, and the material bag will be released automatically and fall into the conveyor belt. It will be sent to the sewing machine to enter the next process after sewing the bag, and the controller will enter the next control cycle at the same time

what you said upstairs is good, but according to the different packing bags, there are two kinds of packing machines: open bag and valve bag. The open bag needs to be sealed, just like the content introduced in the text upstairs, which is actually the working process of the open bag packing machine, while the content in the picture is the packing machine of valve bag. The biggest difference is that the bag of the open bag packing machine needs to be sealed, such as flour bag, The valve pocket is a self sealing bag, which does not need to be sealed. When the feeding nozzle is pulled out, the bag will be automatically closed, such as cement bag.

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