The reason of the weight instability of blowing bottle by full automatic bottle blowing machine

     When the full-automatic bottle blowing machine is used in the automatic production, the weight of the product is often unstable, and the weight of the product exceeds the specified deviation. Feature weight instability is the bottle nozzle material appears at the bottom of different lengths, serious due to the length of the tube is not enough to make the product material blow molding, causes weight instability has the following conditions: temperature control is not accurate or the temperature deviation, temperature (TC) of the installation position is not reasonable, the temperature cycle deviation, temperature deviation amplitude increases, the effect of weight deviation is also increased. When the temperature rises, the extrusion barrel increases in tension. In the same operation period, the nozzle material at the bottom of the bottle increases, and the weight of the product decreases. When the temperature is low, the weight of the product increases. When the thermocouple appears poor contact, there is a similar fault, if the thermocouple is bad, then the extrusion volume decreases, and then lower than the melting point of the plastic temperature, the motor current increases. Not melting below the melting point of plastics. Whether the installation position of thermocouple is reasonable or not and the temperature area of thermocouple measuring point will affect the stability of extrusion directly.

        The two modules do not match the running time (too large), if the constant speed flow of the conveyor tube, the left and right sides of the module running time is very different, the weight appears on both sides is unstable. The module runs faster, weighs more, and the module runs slowly because of the relationship between stretching and light weight. The solution is to adjust the travel time of the module close to the two sides, and the extrusion is stable. The result is that the instability of the motor that meets the light instability and the speed of the movement is not suitable for the instability caused by the extrusion amount through the belt tightness.

    Four plastic raw material reasons, due to different plastic raw materials or mixed proportion change caused by discharge, how much (percentage) of regular water extrusion material change influence. Full automatic bottle blowing machine