Our PET cosmetics packaging production embryo status quo analysis ( On)
PET embryo injection equipment for the production of cosmetics packaging in our country is developed with the filling of carbonated drinks, and after years of development, has made some progress of science and technology. But it should be clearly aware that domestic PET embryo injection molding equipment for the production of cosmetics packaging because of quality and technical level has greatly lagged behind the advanced foreign models, it is not a big business, like the stragglers sporadic in the market.
PET injection molding machine main performance with scientific and technological progress have been put forward new requirements. In the mid - 1980 - s, the application of PET cosmetics packaging production in its infancy, and hot runner technology still under development, especially the hot runner technology used in PET cosmetics packaging production embryos die is not enough mature, group of the embryos die cavity PET cosmetics packaging production are also under development, so the performance of the embryo injection molding machine for PET cosmetics packaging production has not been particularly high requirements. Later, with the development of hot runner and group of cavity mould technology, especially the application of PET cosmetics packaging production is the geometric growth, thus the embryo injection molding machine for PET cosmetics packaging production performance put forward higher requirements. Therefore, PET cosmetics packaging production embryo in such aspects as institution and structure control injection further reflect the performance characteristics of special injection molding machine, main performance at high speed, high efficiency, precision and so on.
although at present domestic has produced a certain amount of embryo in PET cosmetics packaging production injection molding machine, but they are mainly single molding equipment, and its quality and technical level is far behind the international advanced level. Several large domestic PET cosmetics packaging production production unit, don't use a domestic PET embryo injection molding equipment for the production of cosmetics packaging, is a very good proof. The author thinks that, PET embryo injection molding equipment for the production of cosmetics packaging is a high-end equipment, research and development of the thinking of development should be different from ordinary injection molding equipment. And some domestic units is the PET injection molding machine positioning for ordinary cosmetics packaging production embryonic medium and low-end products, think only need to change the screw barrel can be PET injection molding machine, so there is no doubt that since the beginning of the development is on the wrong path, so have to go to always wandering at the low level. For a domestic manufacturer, therefore, should first correct development train of thought, the PET cosmetics packaging production embryo positioning for the high-end products, injection molding to follow the international trend of development, thus in order to develop high performance to adapt to the market of PET cosmetics packaging production embryo injection molding machine.
a. PET cosmetics packaging production embryo injection molding machine main body and structure of the
1. Clamping mechanism
embryo in PET cosmetics packaging production group of cavity mould has not been applied before the embryo injection molding machine for PET cosmetics packaging production performance of clamping mechanism research has not been enough attention. As PET cosmetics packaging production embryo group of the cavity mould of the application of embryo on PET cosmetics packaging production of injection molding machine clamping mechanism is also put forward new requirements, namely between the clamping mechanism must be able to long-term template parallelism and clamping force, Clamping force) The accuracy of stability. PET cosmetics packaging production embryo group of cavity die compared with the ordinary plastic molding die, with the inherent characteristics of high precision and rigidity is small. Because a PET cosmetics packaging production embryo group of cavity mould prices even more than the price of the host, so the clamping mechanism must be able to play the role of good protection mould. For this, the clamping mechanism must have enough stiffness and good speed characteristic of clamping and qi mould, template deformation uniformity and good repeatability.