With the development of hot runner technology, the development of group cavity mold, especially the application of PET bottles into geometric growth, the performance requirements for PET bottle preform injection molding machine put forward higher and higher requirements, PET bottle preform injection molding machine to adapt to the development of the market, its mechanism and structure control aspects of the machine to further reflect the performance characteristics of a dedicated injection molding machine, mainly in the high-speed, high efficiency, precision and other aspects.ġ.2 The progress of the main mechanism and structure of PET preform injection moulding machineīefore the application of group cavity molds for PET bottle blanks, the study of the performance of the clamping mechanism of PET bottle blank injection molding machines has not received sufficient attention, for example, Introducing the main features of the company’s PET preform injection molding machine, mainly introducing the screw and nozzle aspects of the research and development to adapt to the PET preform injection molding, but has not yet touched on other aspects.
In the mid-eighties of last century, the application of PET bottle is in the initial stage, hot runner technology is still in the development stage, especially hot runner technology applied to PET bottle blank mold is not mature enough, group cavity PET bottle blank mold is still in the research and development stage, so the performance requirements of PET bottle blank injection molding machine is not particularly high requirements, for example, the Italian Xinduo Plastics Machinery Co. The main performance of PET injection molding machine with the progress of science and technology and constantly put forward new requirements. First of all, to correct the development of ideas, the development of PET preform injection molding machine as a high-end product to research and development, in order to develop a high-performance PET preform injection molding machine to adapt to the market.ġ.1 PET preform injection molding machine main performance of progress Some domestic units to research and development of PET preform injection molding machine, as an ordinary middle and low-end products to research and development, change about the screw barrel as a PET injection molding machine, so that the development of the beginning on a wrong route, so engage to engage in always wandering on the low-end level. According to the authors, the PET preform injection molding equipment is high-end equipment, the development of ideas is different from the development of ordinary injection molding equipment. This problem is illustrated by the fact that none of the injection molding equipment for PET bottle blanks is made in China, which is the largest unit in the domestic PET bottle production. Although the domestic research and development has a certain amount of PET injection molding equipment, but its quality and technical level compared with the international advanced level, at least two decades. PET preform injection molding equipment is mainly related to two aspects: preform injection molding machine, preform bottle mold.ġ PET bottle preform injection molding machine in the technological progress of several issues worth paying attention toĭomestic PET bottle preform injection molding machine mainly developed single-layer PET bottle preform injection molding equipment. In this paper, the author, according to their understanding of the situation, in response to some of the above problems, put forward some ideas for reference.
But we should be sober to see, the domestic PET preform plastic molding equipment into the big enterprises, like a stray soldier in the market in bits and pieces to beat, can not become climate. International excellent performance of PET bottle blank injection molding equipment continues to enter China, promoting the development of China’s PET bottles, and promote the scientific and technological progress of China’s PET bottle blank injection equipment. The present situation and development direction of PET preform injection equipment in ChinaĬhina’s PET bottle blank injection molding equipment with the development of carbonated beverage filling, with the expansion of the application of PET bottles, the PET bottle blank injection molding equipment put forward higher performance requirements.
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