【Xili Blow Molding Machine】Working Principle of Rotary Blow Molding Machine

At present, the domestic speed of the blow molding machine is quite linear. The rotary blow molding machine has a high blowing speed. What is the working principle of the rotary blow molding machine? The working principle of the rotary bottle blowing machine is explained in detail. The blowing process of the rotary bottle blowing machine is divided into two parts: 　　 1. Preheating the preform (embryo) through the infrared high-temperature lamp to irradiate the preform (embryo) body part of the preform (embryo) heating and softening, in order to maintain The shape of the bottle mouth, the preform (embryo) mouth does not need to be heated, so a certain cooling device is required to cool it.　　 2. Blowing molding. This stage is to place the preheated preform (embryo) into the already finished blow mold, inflate it with high pressure, and blow the preform (embryo) into the required bottle. Bottle blowing machines on the market are generally divided into automatic and semi-automatic. The automatic bottle blowing machine combines the two operations of bottle blowing through the operation of the manipulator, eliminating the need for the manual process of putting the preheated preform (embryo) into the blow mold. Greatly speed up the production rate, of course, the price is also higher than the semi-automatic. The working principle of the entire automatic bottle blowing machine system is relatively simple. Because only the stretch cylinder and pre-blowing are required, the installation structure is also very convenient. It is worth noting that the balance between the amount of gas recovered and the amount of gas consumed is different in production. The relationship between supply and demand should be grasped when filling bottles. Although this system only provides the recovered air to the stretching and pre-blowing parts, and the investment is small (take SBO10/14 as an example, only about 20,000, depending on the price of the accessories), the return is large (annual cost savings of 160,000 to 200,000 ), strong independence (the original gas supply system can be used in case of failure or other reasons), high flexibility (simple and convenient installation), which is in line with the basic principles of our technological transformation project, making the products more competitive in the market. When the machine is turned on and the bottle is idling without blowing, the low pressure gas passes through the original pipeline solenoid valve to the stretch cylinder gas storage pipe. The recovery gas storage pipe and the stretch cylinder gas storage pipe are isolated by a one-way valve. There is no low pressure gas in the recovery gas storage pipe. At this time, the entire stretching gas circuit system and pre-blowing system remain in their original state before modification. We can properly open the exhaust valve 9 to discharge the excess air volume from the muffler to maintain the balance between the recovered air volume and the consumed air volume. If there is still residual air in the recovered air storage pipe, it will be discharged through the 15bar safety valve 4, so the safety valve There must be sufficient flow to allow the excess gas to be discharged. When the bottle blowing is stopped, the manual solenoid valve is opened to supply gas from the original low-pressure and pre-blowing pipeline. When the automatic bottle blowing machine starts to blow bottles, the high-pressure gas in the bottle enters the recovery gas storage pipe 6 through the three-way valve 10 exhaust pipe through the one-way valve 12, and the equipment runs a circle to recover enough gas, then the manual solenoid is used Valve 1 closes the original stretched low-pressure inlet and pre-blowing inlet pipelines. At this time, the stretch cylinder and pre-blowing gas are supplied by the recovery gas storage pipe. Because the volume of the bottles produced is different (0.6L, 1.25L, 2.0L, etc.) ).　　 The above is the working principle of the rotary blow molding machine. Related recommendation: [Rotary blow molding machine] Fully automatic rotary pet blow molding machine manufacturer

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