The screw packaging machine has the difference between vertical and vertical, vertical and rotating (also known as rolling) and intermittent (also known as disorder). The bag has three seals, sealing all sides, rear seals and multiple columns of packaging equipment. There are many types of packaging equipment, and the differences between equipment are also very large. In the actual use of composite film rolls, you will encounter various difficulties: First, the difficulty of friction coefficient
During the packaging process, the friction of the automatic packaging machine manufacturer is often both resistance and resistance, so its size should be kept within a proper range. When the coil is automatically packaged, the internal friction coefficient is generally required, the surface friction coefficient is appropriate, and the surface friction coefficient is too large, which will cause the packaging link to be too much resistance, resulting in the material stretching and deformation. If it is too small, it may also cause the dragging tissue to get out of control, resulting in inaccurate and disconnecting the electric eye positioning. However, the friction coefficient in the mouth cannot be too small. When the inner friction coefficients pass the hour, some screw packaging opportunities will cause stacking materials to be unstable during the molding process of the bag, resulting in edge errors; for the composite film of the band -shaped packaging, too small the inner friction coefficients may cause the lower slices or glue to get out of control, resulting in cutting Inaccurate positioning.
Screw automatic packaging machine
The friction coefficient of the inner layer of the composite membrane depends entirely on the content of the inner material and the content of the sliding agent and the hardness and smoothness of the film. The friction coefficient of the product will also be affected by the surface of the surface, the drying temperature and time in the production. When studying the friction coefficient, special attention should be paid to the effect of temperature on the friction coefficient. Therefore, we must not only measure the friction coefficient of packaging products at room temperature, but also investigate the friction coefficient at the temperature of the specific use scenario.
The challenge of the hot seal crowded PE
The automatic packaging equipment during the heat seal, PE it is often squeezed out and sticking to the film, affecting normal production, and squeezing PE thermal seal molds will be oxidized and smoked. Generally speaking, the PE squeezed out of the heat seal is generally reduced by reducing the heat seal temperature and pressure, adjusting the secret recipe of the thermal seal layer, modifying the thermal seal film, and reducing the pressure on the edge part to a certain extent. But it turns out that the best solution is to produce a composite film by squeezing out the composite process, or increase the speed of the screw packaging machine, so that the PE thermal seal film cannot be squeezed out in time.
