Mold structure for molding glass insert

Abstract

The invention relates to a mold structure, in particular to a mold structure for molding a glass insert. The mold structure comprises a male mold plate, a female mold plate and a cavity formed by a male mold core and a female mold core, wherein glass is embedded in the cavity. The mold structure further comprises a floating insert core and an elastic element, wherein the floating insert core is arranged in the male mold core, the glass is arranged at the top of the floating insert core, the elastic element is arranged in the floating insert core, correspondingly, the floating insert core is provided with a containing space for the elastic element to be arranged therein, one end of the elastic element abuts against the male mold core, and the other end of the elastic element abuts against the floating insert core. According to the mold structure for molding the glass insert, the mold structure has a floating space during mold closing, and when the glass has thickness tolerance, the floating space ensures normal molding of the glass insert, so that the phenomena of squeeze damage and pressure damage of glass are avoided, and the problem of product burrs is also avoided.

Description

【Technical field】 [0001] The invention relates to a mold structure, in particular to a mold structure for glass insert molding. 【Background technique】 [0002] Insert molding (Insert Molding) refers to pre-fixing the insert in the appropriate position in the mold, and then injecting plastic molding. After the mold is opened, the insert is tightly wrapped by the cooled and solidified plastic. [0003] see figure 1 As shown in , it shows a schematic diagram of a glass insert molded product. The product 10 is composed of glass 11 and plastic parts 12. During the molding process of the product 10, the glass 11 will be embedded in the mold first, and then molten plastic will be injected into the periphery of the glass 11 in the mold to form the plastic parts 12. . [0004] However, due to the thickness tolerance of the glass 11, if the thickness is at the lower limit of the tolerance, the thickness is too thin, and the molten plastic will be squeezed into the bottom of the gla...

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Problems solved by technology

[0004] However, due to the thickness tolerance of the glass 11, if the thickness is at the lower limit of the tolerance, the thickness is too thin, and the molten plastic will be squeezed into the bottom of the glass 11 when the plastic is injected and kept under pressure, causing the glass 11 to be broken; When the thickness is within the upper tolerance limit, the thickness is too thick, the mold clamping pressure will crush the glass 11, and the mold cannot be closed tightly, resulting in burrs on the product 10

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