Injection mold industry ushered in a new round of development opportunities
The modern mould industry has the reputation of "not dying industry".In general, the world's mold market is in short supply, and the market demand is maintained at us $60 billion to us $65 billion. At the same time, China's mold industry has also ushered in a new round of development opportunities.
Mold cavity, and the cavity cooling finalize the design, and then separated from mould, via ejection system will leave mould products out of the cavity roof, the mould closed again for the next injection, the injection molding process is a cycle.
Generally, the plastic mold consists of two parts, the moving mould and the fixed mould. The moving mould is installed on the moving template of the injection molding machine, and the fixed mould is installed on the fixed template of the injection molding machine.During injection molding, the dynamic die and the fixed die are closed to form the pouring system and the cavity. When the die is opened, the dynamic die and the fixed die are separated to take out the plastic products.
Although the structure of the mold may vary greatly due to the variety and properties of the plastic, the shape and structure of the plastic products, and the type of the injector, the basic structure is the same.The mould is mainly composed of casting system, tempering system, forming parts and structural parts.The pouring system and is part of the direct contact with plastic molding parts, and with the plastic and products, is the most complicated in the mold, the biggest change, request processing smoothness and accuracy of the highest part.
In the process of mold injection processing, the gate will sometimes stick in the gate sleeve, so it is not easy to get out.Results in the crack damage of the product when the die is opened.The operator must use the tip of the copper rod to knock out from the nozzle, so that the broken plastic can be loose and then off the mold, seriously affecting the production efficiency.The main reason for this failure is that the surface of the cone hole of the gate sleeve is not smooth enough, and the circumference of the inner hole is sometimes marked with knife marks.Followed by some injection molding material is too soft, mold gate set in use after period of time of cone Kong Xiaoduan deformation or damage, if the gate mouth spherical radian is too small, causes the gate feed produce riveting head here.The tapered hole of the gate sleeve is difficult to be processed. Standard parts should be adopted as far as possible.
Guide pin in the mould is mainly ACTS as fixed and guide, to ensure the core and cavity of mould forming part under any circumstances do not collide with each other, but not to guide pin as the stress of the mould or positioned in.For example, during injection, the dynamic and fixed mold will generate a great lateral migration force. When the wall thickness of the plastic part is not uniform, the material flow rate at the thick wall is large, which will generate greater pressure.If the side of the plastic part is not symmetrical, such as the split face mold distributed in the echelon form, the reverse pressure on the opposite side of the mould is not equal.
Mould level of production technology, has become a measure of a country manufacturing level, one of the important marks because the mold to a great extent, decides the quality of products, benefits and new product development capability.China mold and die industry development is very active in recent years, including overseas export market is an indispensable part of the development of China mold and die industry, it is understood that at present, Hong Kong is still in the distribution of China's export market with the largest share, followed by Japan and the United States, the three combined nearly is mould half of total export in China, but China's exports of mold for the low-end products, the high-end market of developed countries in Europe and the us share of Chinese products is also very low.Therefore, China's mold industry should actively improve product quality to further improve the overseas market share of mold products, so as to further promote its own development.
Therefore, if Chinese mould products want to enter the international market in depth and continuously explore new sales areas, it is necessary for Chinese mould manufacturers to pay more attention to the quality of the mould.