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What are the uncertain factors that will occur in the production of the bottle blowing machine?

by:Yosion Machinery     2021-05-31
What are the uncertain factors in the production of the bottle blowing machine? Usually, when the automatic bottle blowing machine is produced, the weight of the product is often unstable, and the weight of the product exceeds the specified deviation. The characteristic of unstable weight is that the nozzle material at the bottom of the bottle has different lengths. In severe cases, the length of the material tube is not enough to make the product unable to be blown. The main reasons for the unstable weight are as follows: 1. The bottle blowing machine is in production The temperature control is inaccurate or the temperature deviation is large, and the installation position of the temperature measurement point (thermocouple) is unreasonable, which causes the temperature to produce periodic deviation. As the temperature deviation increases, the deviation that affects the weight also increases. When the temperature rises, the extrusion barrel stretches more. In the same operating cycle, the nozzle material at the bottom of the bottle increases and the product weight is reduced. When the temperature is low, the weight of the product increases. When the thermocouple has poor contact, there will be similar failures. If the thermocouple is broken, the extrusion volume will decrease, and when the temperature is lower than the melting point of the plastic, the motor current will increase. It cannot be extruded below the melting point of the plastic. Whether the installation position of the thermocouple is reasonable and the temperature control area of u200bu200bthe thermocouple measuring point will directly affect the smoothness of extrusion. 2. The running time of the two mold bases is inconsistent (the difference is too large). If the downward flow of the material pipe is at a constant speed, when the running time of the left and right mold bases differ greatly, the weight on both sides will be unstable. The quicker the mold base has a heavier weight, and the slower mold base has a lighter weight due to stretching. The solution is to adjust the mold bases on both sides to make the running time close. 3. Unstable extrusion volume, in case of unstable extrusion volume caused by unstable rotation speed of the motor and improper belt tightness. 4. The reason for the plastic raw materials is that the output is different due to the change of different plastic raw materials or the mixing ratio. The amount of nozzle material added (percentage) often changes, which affects the extrusion volume. Zhangjiagang Jinyi Machinery Co., Ltd. specializes in Ru0026D and production. Manufacturers of blow molding machines with various specifications.
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