Common problems in the use of Granule packaging machine

　    Common problems in the use of Granule packaging machine

　　1. Friction coefficient problem: The friction force in the packaging process of Granule packaging machine is often both drag force and resistance, so its size should be controlled within an appropriate range. Coiled materials for active packaging generally require a small inner layer friction coefficient and a suitable outer layer friction coefficient. If the outer layer friction coefficient is too large, it will cause excessive resistance in the packaging process and cause stretching of the material. If it is too small, it may It will also cause the drag mechanism to slip, resulting in electric eye tracking and inaccurate blocking positioning. However, the friction coefficient of the inner layer cannot be too small. For some packaging machines, the friction coefficient of the inner layer is too small, which will result in unstable stacking during bag making and wrong edges. When studying the coefficient of friction, special attention should be paid to the great influence of temperature on the coefficient of friction. Therefore, not only the coefficient of friction of the packaging material at room temperature should be measured, but also the coefficient of friction under the actual ambient temperature should be investigated. 2. Heat-sealing problem: The low-temperature heat-sealability of Granule packaging machine is mainly determined by the function of the heat-sealing resin, and it is also related to the pressure. Generally, the extrusion temperature is high during the extrusion and the corona treatment is too strong or the film The low-temperature heat sealing function of the material will be reduced if it is parked for too long. Low-temperature heat-sealing and heat-sealing materials with high thermal adhesive strength should be selected, and heat-sealing materials with good pollution resistance should be selected for powders, liquids and other highly polluting materials.

3. Heat-sealing and extruding PE problem: In the process of heat-sealing the composite film, PE is often extruded and stuck to the heat-sealing film. The more it accumulates, the more it affects normal production. The PE extruded together will oxidize and smoke on the heat-sealing mold. , A peculiar smell. Heat-sealing extruded PE can generally be processed by reducing the heat-sealing temperature and pressure, adjusting the formula of the heat-sealing layer, and modifying the heat-sealing film to reduce the pressure at the edge.