High-brightness non-melted mark steam injection mold and using method thereof

Abstract

The invention discloses a high-brightness non-melted mark steam injection mold and a using method thereof. The high-brightness non-melted mark steam injection mold consists of an upper mold, a lower mold, a pouring system, a cooling water channel and an ejecting mechanism; the upper mold has an inlaying structure and consists of an upper mold inlaying plate, an upper-layer insert and a lower-layer insert, the upper-layer insert and the lower-layer insert are fixed in the upper mold inlaying plate, and the lower-layer insert is provided with a steam channel; the lower mold has an inlaying structure and comprises a lower mold inlaying plate and a lower mold insert, the lower-layer insert of the upper mold and the lower mold insert form a cavity, and the lower mold is internally provided with the cooling water channel; the pouring system is connected with the cavity by the upper mold inlaying plate, the upper-layer insert, the lower-layer insert and the lower mold insert; and the ejecting mechanism consists of an ejector rod, an ejector sleeve and a top plate. In the invention, a heat-insulating plate is arranged for heat insulation so as to deform the upper mold, improve the product quality and prolong the service life of the mold; the inlaying structure is adopted to effectively utilize the materials; and feeding is carried out from the inside of the product so as to have marks on the surface after a sprue is removed, and ensure the outer surface quality of the product.

Description

technical field [0001] The invention relates to a steam injection mold, in particular to a high-gloss steam injection mold without melting marks and a use method thereof. Background technique [0002] Because of its high quality and attractive luster, high-gloss products have gradually become the appearance trend of home appliances, especially flat-panel TV casings. At the same time, the rapid development of advanced mold forming technology also brings many possibilities to the production of high-gloss cabinets. [0003] General high-gloss products refer to finished parts with uniform and high-gloss appearance. [0004] In the early stage, because the basic defects of mold injection molding (shrinkage, weld lines, air marks, etc.) could not be eliminated, high-gloss products could only be modified by subsequent processing of plastic semi-finished products, such as spraying, UV varnishing and other means. [0005] The existing production methods of high-gloss products ar...

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Problems solved by technology

[0010] The high-gloss non-melt mark mold that is compatible with the production process of high-gloss products is also being vigorously developed. The mirror mold forming mold has very high requirements for the processing of the mold itself. The surface quality of the mold determines the quality of the product and increases the processing cost. It also prolongs the production time of the mold; the electric heating mold forming mold needs to add the space of the electric heating device. At the same time, due to the defect of the electric heating device itself (it is easy to bend and deform when heated), in order to avoid the short circuit caused by the electric heating device touching the mold wall, the electric heating The hole must be perpendicular to the plane of the injection molding machine, which limits the space for the electric heating device, relatively increases the size of the mold, and increases the production cost and weight of the mold

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