Today, we Chantecpack would like to introduce the solution to the problem of inaccurate loading of automatic powder packaging machine
1. The relationship between the screw outer diameter and the packaging accuracy of the automatic powder packaging machine should be said to have a very direct relationship with the spiral outer diameter. The premise of the relationship with the screw pitch is that the screw outer diameter has been determined before the comparison is made. Generally speaking, when selecting the metering screw, it is generally determined according to the package size, and the material specific weight is also considered to adjust appropriately. For example, our small-dose packaging machine generally selects a screw with a diameter of 38mm when packing 100g pepper powder. However, if the package is packed with glucose with high bulk density, which is also 100g, we need to use a screw with a diameter of 32mm. In other words, the larger the package size, the larger the spiral outer diameter selected, so as to ensure both the packaging speed and measurement accuracy.
2. Relationship with screw: the package specification is within the range of 5-5000 g, the conventional feeding method is screw blanking, and there is no instant weighing measurement method. The screw blanking belongs to the volumetric measurement method. The consistency of the volume of each screw pitch of the screw is the basic condition to determine the measurement accuracy of the automatic powder packaging machine. Of course, the pitch, outer diameter, bottom diameter and shape of the spiral blade will affect the packaging accuracy and speed;
3. How about the packaging accuracy and screw pitch of automatic powder packaging machine? Here we can give an example. For example, our seasoning packaging machine selects the screw with diameter of 30mm when packing 50g cumin powder. The pitch we choose is 22mm, the proportion of accuracy ± 0.5g is more than 80%, and the proportion of ± 1g is more than 98%. However, we have seen in our customers that the screw pitch with diameter of 30mm is more than 50mm. What will happen? The feeding speed is very fast, and the measurement accuracy is about ± 3 g. The requirement of industry standard “QB / t2501-2000″ for grade x (1) weighing instrument is that the packing specification is less than 50g, and the allowable deviation is 6.3%.
Post time: Jul-13-2020