It is recommended that the stretching ratio between the preform and the bottle body is preferably 1:2.5 (excluding the mouth part), and at the same time adjust the heating temperature to extend the pre-blowing. The common factor for bottle accumulation is that the stretching rod is not adjusted in place. What should I do with the bottom of the bottle blown by the bottle blowing machine? 5D/12D/20D Double Station Blow Molding Machine Common problems and solutions in the blowing process of the bottle blowing machine 1. Still, hot-filled bottles must ensure that it is fully released above the glass transition temperature. For gas-filled beverage bottles, it can resist internal pressure, which is beneficial. In the process of rapid blow moulding and cooling, induced stress is generated in the bottle wall. if possible, it is better to control the overall temperature distribution of the preform, bottle The temperature gradient of the inner and outer walls of the blank. Therefore, it is necessary to adjust: stretching start timing, stretching speed, pre-blowing start and end timing, pre-blowing pressure, pre-blowing flow, etc. The three actions are concise, but they must be well-coordinated, especially the first two steps to determine the overall distribution of the material and the blowing quality. The blowing process includes stretching-blowing once-blowing twice. This temperature is determined by the length of the cooling time during the injection moulding process (such as the Aoki bottle blowing machine), so the relationship between the injection and blowing stations must connect. The PET exhibits a highly elastic state in this interval and becomes a transparent bottle after rapid blow moulding and cooling, and setting. The wall thickness of the preform should not exceed 4.5mm.īlowing is carried out between the glass transition temperature and the crystallization temperature, generally controlled between 90 and 120 degrees. It is necessary to control the stretch-inflation ratio:ĭo not exceed 3.5-4.2 in the radial direction and 2.8-3.1 in the axial direction. It has good airtightness.Īlthough stretching helps to increase strength, it should not be overstretched. It improves the tensile, tensile, and impact strength. In this process, the PET chain is extended, oriented and arranged in two directions, which increases the mechanical properties of the bottle wall. The blow moulding machine process of the bottle blowing machine is a two-way stretching process. 5D/12D/20D Double Station Blow Molding Machine The process flow of the bottle blowing machine Significantly accelerate the rate of production. 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 into the blowing mould. The preheated preform is placed in the blow mould, and the inside is inflated with high pressure to blow the preform into the required bottle. To maintain the shape of the bottle mouth, the preform mouth does not need to be heated, so a particular cooling device is required to cool it. Warm-upĪn infrared high-temperature lamp irradiates the preform to heat and soften the preform. The blowing process of the bottle blowing machine is divided into two parts. MOOG parison programmer, Parison control system uses MOOG 100 points parison programmer, and it uses specially designed separate hydraulic power package to control the movement of cylinder, so it has high precision.īlowpin system: Up-blowing unit(Used for JWZ-BM Continuous type Blow Molding Machine) Electric system: SIEMENS CPU unit/SIEMENS temperature-control unit/SIEMENS digital-output unit/SIEMENS analog-output unit/MITSUBISHI CPU unit/ABB invertor revolving speed-contro/Schneider electric componets.The principle of the bottle blowing machine B&R Austria human-machine interface and parison programmer can adjust within 300 points. SIEMENS human-machine interface, Human-machine interface control panel screen has such functions as follows: visual display providing the best support to easily set, search, change and store the parameters, the controlling system has self-diagnosis functions, the malfunctions can be displayed on the screen. Provide complete project for:ĥ Ltr Blow Moulding Machine Performance and Advantages Note: Informations listed above are for reference only, the production line can be designed by customer's requirements.Īpplicate to make 5 Ltr blow molding products. Specifications of 5 Ltr Blow Moulding Machine Description About 5 Ltr Blow Moulding Machine
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