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Application of two color injection moulding

Release time: 2020-09-04

With the transformation of China's mould and industry innovation, the market prospects of various industry branches have gradually become clear. The two color mould industry is facing technological innovation, and technological upgrading is imperative. This is an important condition for the rapid development of the industry and market demand.

Two color injection moulding machine is a technology that can produce high-gloss surfaces at one time, with two layers of different colors inside and outside. The application of this technology can greatly improve the appearance of the entire product. Compared with ordinary two color injection moulding, large-scale two color vertical injection moulding machines have great differences in product characteristics, mould structure, sequence of actions, and gate settings, and the difficulty is greatly increased.

In continuous production, the outer layer injection and the inner layer injection are carried out at the same time, so the moulding cycle is basically close to conventional injection moulding. Two-color injection moulding machine technology can be combined with high-gloss non-melt injection moulding technology. In production, use high temperature and high-pressure hot water or steam to heat the mould to quickly switch the cooling medium after injection, so that the mould is quickly cooled, and the surface is free of melt marks. The two color plastic parts with high gloss on the surface can significantly improve the appearance of the entire machine.

The two color injection moulding machine is injection moulded inside and outside separately, so the two color mould needs two sets of cavities and two sets of cores, two of which are identical and can be used interchangeably with two sets of cores; both sets of casting systems are located in the core The side is a reverse installation structure. The ejector is also located on the core side, and oil pressure is used for ejection. Together with the cooling system, the complexity of the entire core side structure is greatly increased.

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