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Development status of plastic mold manufacturers
Edit:Taizhou Huangyan Yige Machinery Co., Ltd.   UpDate:2019-06-05

Slow down the speed by adding the time of exhaust and the time of full pressure, and reduce the temperature of the entire light box at the same time. Every time the temperature of the light box is added by 0.1S, the overall demand is reduced by 1%. Increasing the speed is the opposite of decreasing the speed. (The exhaust time is as low as 0.8S, and the bottle skip phenomenon due to the untimely exhaust will occur after the time is below 0.8S.) The speed increase and decrease should not be too fast. Change 0.3S each time. Speed, wait for the bottle quality to stabilize before adjusting the speed in the future. Every time you adjust the speed, you must carefully investigate the quality of the bottle and adjust the temperature of the light box at any time. Each time the blowing cycle of the bottle is changed by 0.1S, the output value of the bottle changes by about 50 per hour. The bottle blowing machine should reasonably adjust the blowing speed according to the speed of the filling machine.
Plastic mold manufacturers believe that PET bottle blowing machines are divided into rotary and linear types according to the conveying method of preform heating. Rotary blow molding machines have high productivity, fast speed, messy design, and high price. The typical rotary bottle blowing machine is the SBO series of French SIDEL. Its SBO24 type bottle blowing machine has an output value of more than 20,000 bottles per hour. Now TechnoLong in China has successfully developed a rotary bottle blowing machine with a production speed of up to More than 8,000 bottles per hour; the typical representatives of linear blow molding machines are Japan's ASB and AOKI. Generally speaking, this mechanical design is relatively simple, but the output value will constitute a bottleneck, and it is difficult to exceed 6,000 bottles per hour.
Temperature control is directly related to the uniformity of plasticization, which is the key to the success of bottle blowing products. The design and accuracy of the mold and the hot runner also determine the quality of the product.
At present, China's injection stretch blow equipment for PET bottle production is basically the world of imported products, especially in the production of high-speed and large-volume products, domestic equipment can not compete. It is worth mentioning that there are few manufacturers that can produce large-capacity PET hot-fill bottle blowing machines now. It seems that as long as the repeated blowing process of ASB has satisfied the role.

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