PET membrane punching mold forming by IMR and application method thereof

Abstract

The invention provides a PET membrane punching mold forming by IMR and a using method thereof. The problems that edge trimming is difficult to achieve automatic production for the control board products needing to adopt the IMR forming process technology, burrs are more, edge deformation and the like are even caused after edge trimming are solved. The novel membrane punching mold is designed, a membrane positioning mechanism, a membrane exhaust mechanism and an edge pressing device are additionally arranged in the mold, so that the phenomenon that the burrs are more and the membrane is deformed after punching when the membrane is punched in the IMR process is eliminated, so that the zero-defect automatic production of products is realized, the product forming quality is effectively guaranteed, the mold structure design is novel, and the mold has relatively good production and application values.

Description

technical field [0001] The invention relates to the field of injection mold mechanism design, in particular to an IMR forming PET diaphragm punching mold and a method for using the same. Background technique [0002] IMD is currently a popular surface decoration technology in the world. It is mainly used for decoration and functional control panels of home appliances, automobile dashboards, air-conditioning panels, mobile phone buttons, casings, window lenses, etc. It is widely used. In fact, IMD is divided into in-mold conversion Printing (IMR, In-Mold Roller), in-mold small insert injection molding (IML, In-Mold Label), in-mold shallow edge full-surface insert injection molding (IMF, In-Mold Film), in-mold deep edge with appearance effect Film Insert Molding (INS, Film Insert Molding); the IMR process is to place a part of the continuous sheet in the mold cavity. After injection, the plastic will take away the silk screen pattern on the surface of the sheet and separate it...

AI Technical Summary

Problems solved by technology

[0002] IMD is currently a popular surface decoration technology in the world. It is mainly used for decoration and functional control panels of home appliances, automobile dashboards, air-conditioning panels, mobile phone buttons, casings, window lenses, etc. It is widely used. In fact, IMD is divided into in-mold conversion Printing (IMR, In-Mold Roller), in-mold small insert injection molding (IML, In-Mold Label), in-mold shallow edge full-surface insert injection molding (IMF, In-Mold Film), in-mold deep edge with appearance effect Film Insert Molding (INS, Film Insert Molding); the IMR process is to place a part of the continuous sheet in the mold cavity. After injection, the plastic will take away the silk screen pattern on the surface of the sheet and separate it from the sheet; IMF, INS and The IML process is similar. One advantage of IMR application is that for textured decorations, the pattern is more realistic, the injection molding cycle is short, and the cost is relatively low. It has been widely used in the industry, but the related plastic parts molding theory and molding equipment It is impossible to achieve zero-defect production for the entire diaphragm forming, especially after the diaphragm is hot-pressed, it is difficult to achieve automatic production of its edge trimming, and after repair, there are many burrs, which even lead to edge deformation. It is proposed to combine a new The automotive air-conditioning touch control panel uses the IMR process to produce the IMR diaphragm punching mold to make structural design innovations

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