What should I do if the packaging bag of the semi-automatic powder packaging machine is not flat?
Semi-automatic powder packaging machine packaging bag uneven phenomenon: product curling, wrinkling reasons: 1) The upper and lower film design is unreasonable. 2) The tension of the upper and lower membranes does not match. 3) The sterilization method is not good. 4) The shape and depth of the molding die are not matched. 5) The blank space is not heat sealed. The solution to the uneven sealing of the semi-automatic powder packaging machine: 1) Design the upper and lower films into a symmetrical structure to reduce the stress between different structures. 2) The tension control of the upper and lower membranes is well matched. Under the condition of ensuring the smoothness of the membrane, try to control the tension as small as possible to avoid uneven tension, resulting in high tension of a single membrane. After sterilization, the membrane curls in the direction of the membrane with high tension. 3) During the sterilization process, the products should be placed neatly, and there should be no mutual extrusion between the products, otherwise there will be discounts, curls, wrinkles and other phenomena. 4) The shape of the stretch forming mold should be similar to the shape of the product as much as possible, and the depth is slightly deeper than the thickness of the product, so as to reduce the curling, wrinkling and other problems caused by the stress after the film is stretched. 5) The blank area is also required to be heat-sealed to increase the strength between the upper and lower films and resist the effect of film stress.
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