There are many types of automatic blow molding machines. When we use them, we must pay attention to selecting the appropriate model for production.
Features of automatic bottle blowing machine:
1. Each heating zone is provided with independent segmented temperature control; the position and distance of the lamps and reflectors in the heating zone can be adjusted according to the different shapes and sizes of the preforms to achieve the ideal heating effect.
2. The constant pressure temperature adjustment method is used to control the heating of the preform by the infrared lamp to ensure that the preform is heated in an appropriate amount, accurate and stable, and is not affected by the change of the input voltage.
3. According to different product needs, this automatic blowing machine can be designed as a double-cavity double-stretching cylinder, a three-cavity three-stretching cylinder, a four-cavity four-stretching cylinder or a six-cavity six-stretching cylinder. Adjust the use of single-cavity single-stretch cylinder to meet the different needs of machine tuning or trial mold.
4. The control system is provided with an automatic fault reporting function; when an operation error or a fault occurs, the computer will display and issue an alarm.
5. The mold replacement is convenient and fast, and there is no need to adjust the thickness of the mold in the range of the corresponding machine.
6. This 10L automatic blow molding machine is suitable for blowing 10L cold and hot filling plastic bottles or other plastic containers.
7. The production process is fully automated, and multiple machines can be combined into a fully automatic production line at the same time. The entire production process does not require manual contact with preforms or finished bottles.
What uncertain factors will be produced in the production of blow molding machine?
When the manufacturer usually carries out the production of the flying pigeon bottle blowing machine, it often encounters the phenomenon that the weight of the product made by the bottle blowing equipment is unstable and the weight of the product exceeds the prescribed deviation. The characteristic of unstable weight is that the nozzle material at the bottom of the bottle has different lengths. In serious cases, the length of the material tube is not enough to prevent the product from blowing.
1. The temperature control of the bottle blowing machine is inaccurate or the temperature deviation is large. The installation position of the temperature measurement point (thermocouple) is unreasonable, which causes a periodic deviation in temperature. As the temperature deviation increases, the deviation affecting the weight also increases. Big. When the temperature rises, the extrusion barrel stretches more. In the same operation cycle, the nozzle material at the bottom of the bottle increases, and the product weight decreases. When the temperature is low, the weight of the product increases. When the thermocouple is in poor contact, there is a similar failure. If the thermocouple is broken, the amount of extrusion decreases, and when the temperature is below the melting point of the plastic, the motor current increases. It cannot be extruded below the melting point of plastic. Whether the installation position of the thermocouple is reasonable and the size of the temperature control area of the thermocouple measurement point will directly affect the extrusion stability.
2. The running time of the two mold bases is inconsistent (the difference is too large). If the material pipe flows downward at a constant speed, when the running time difference between the left and right mold bases is large, the weight on both sides will be unstable. The faster the die frame is, the heavier the weight, and the slower the die frame is, the lighter the weight is due to stretching. The solution is to adjust the mold base on both sides to make the running time close.
3. The amount of extrusion is unstable. If the rotation speed of the motor is unstable and the lightness of the belt is not suitable, the amount of extrusion is unstable.
4. The reason for the plastic raw materials is different due to the different plastic raw materials or the mixing ratio changes. The amount (percentage) of the added water nozzle material often changes the amount of extrusion.