1. The relationship between the packaging accuracy of powder packaging machines and spirals: powder packaging machines, especially small-dose powder packaging machines, have packaging specifications in the range of 5-5000 grams. The conventional feeding method is spiral feeding, and there is still no immediate weighing. Measurement method. Spiral blanking is a volumetric metering method. The consistency of the volume of each spiral pitch is the basic condition that determines the measurement accuracy of the powder packaging machine. Of course, the pitch, outer diameter, bottom diameter, and spiral blade shape will all affect the packaging accuracy and speed.

2. The relationship between the packaging accuracy of the powder packaging machine and the outer diameter of the spiral: It should be said that the packaging accuracy of the powder packaging machine has a very direct relationship with the outer diameter of the spiral. The prerequisite for the relationship with the pitch is that the outer diameter of the spiral has been determined. Generally speaking, the powder packaging machine is generally determined according to the size of the packaging when selecting the metering screw, and the proportion of the material is also considered to be adjusted appropriately. For example, when our small-dose packaging machine dispenses 100 grams of pepper, we usually choose a spiral with a diameter of 38mm, but if it is packed with glucose with a higher bulk density, which is also 100 grams, a spiral with a diameter of 32mm is used. That is to say, the larger the packaging specification, the larger the outer diameter of the spiral selected, so as to ensure both the packaging speed and the measurement accuracy;

3. The relationship between the packaging accuracy of the powder packaging machine and the spiral pitch: how is the packaging accuracy of the powder packaging machine and the spiral pitch? Here we can illustrate with examples. For example, our spice packaging machine uses a φ30mm outer diameter spiral when packaging 50 grams of cumin powder. The pitch we choose is 22mm, the accuracy of ±0.5 grams is above 80%, and the ratio of ±1 grams is above 98%. However, we have seen that the counterparts have spirals with an outer diameter of φ30mm and a pitch of more than 50mm. What will happen? The cutting speed is very fast, and the measurement accuracy is about ±3 grams. The industry standard “QB/T2501-2000″ requires X(1) level measuring instruments to have a packaging specification of ≤50 grams and an allowable deviation of 6.3%.