A silicone product forming mold with a workpiece suspended in the air and double-coated

Abstract

A molding die of a silica gel product with a hanging workpiece encapsulated in double surfaces is disclosed by the invention, and comprises an upper die plate, a middle die plate and a lower die plate, wherein the middle die plate is disposed between the upper die plate and the lower die plate; the lower die plate is convexly extended with a die core; the middle die plate is provided with a first die cavity for workpiece acception on one surface against the lower die plate, the first die cavity is provided with a suction hole therein for workpiece adsorption, and an extraction opening connected with the suction hole is disposed outside the middle die plate; the upper die plate is provided with a second die cavity fitted with the die core on one surface against the middle die plate. By combination of the upper die plate, the middle die plate and the lower die plate, the workpiece and a silica gel material are combined perfectly, and the time interval of a first die-opening discharging and a second die-opening discharging is shortened, and therefore the phenomenon is avoided that depressions are generated on the workpiece under the effect of a support member, and obvious undesirable combinations appear on a connection part of the before and after silica gel material in the conventional molding process. Therefore, the requirements of silica gel product size and appearance are satisfied and product quality is improved.

Description

technical field [0001] The invention relates to the technology in the field of molding molds for silica gel products, in particular to a molding mold for silica gel products in which workpieces are suspended in the air and double-coated with rubber. Background technique [0002] As we all know, traditional silicone products are soft, have good stretchability, the surface can be easily processed with leather and other textures, and the color can be adjusted at will. It is easy to get a good touch feel and beautiful color when made into electronic products, but the disadvantages are easy deformation, poor positioning and support. , while the performance of metal materials such as workpieces is opposite. When the two are combined, when the workpiece is wrapped in the center layer of silica gel, the comprehensive advantages of the two can be obtained. This kind of silicone products with the center of the silica gel covering the workpiece has been widely produced and used in the m...

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Problems solved by technology

[0002] As we all know, traditional silicone products are soft, have good stretchability, the surface can be easily processed with leather and other textures, and the color can be adjusted at will. It is easy to obtain a good touch feel and beautiful color when making electronic products, but the disadvantages are easy deformation, poor positioning and support. , while the performance of metal materials such as workpieces is opposite. When the two are combined, when the workpiece is wrapped in the center layer of silica gel, the comprehensive advantages of the two can be obtained. This kind of silicone products with the center of the silica gel covering the workpiece has been widely produced and used in the market. , but because the workpiece is suspended in the air during production without any support, it is actually impossible to achieve. There are two conventional production methods: one is to use one-time hydraulic molding to ensure the perfect combination of product appearance, but it is necessary to design supports on the mold and the positioning column to control the workpiece, but these supports will leave pits on the product and affect the appearance and performance of the product; the other is to use two hydraulic pressure methods, the first time the workpiece is positioned with hydraulic pressure on one side of the rubber layer, the product Do not take it out, change the half side and mold the second side of the rubber position. In the two-time hydraulic method, the rubber material put in the first time is molded twice, and the rubber material is overcooked, resulting in obvious poor bonding at the joint of the two rubber materials. The appearance does not meet the requirements

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