Stable demoulding car reading lamp bracket mould

Abstract

The invention relates to an automotive reading lamp support mold with demolding stability, comprising a fixed mold and a movable mold; the fixed mold and the movable mold are provided with a front model and a back model to a reading lamp support; the mold further comprises a moving mold, the front of the moving mold is provided with pinholes for electric contacts, and the part of the back corresponding to the pinhole is provided with plug holes for the electric contacts; the movable mold is provided with a limiting hole for receiving the moving mold in a limited manner, and the limiting hole penetrates the movable mold; when the moving mold is fixed side by side in the limiting hole in a back-front connected manner, the pinholes in the moving mold on a forming surface are correspondingly fixed to the electric contacts on the back model; the fixed mold is provided with a cylinder for forming a knob hole; the moving mold is provided with a central hole; the central hole is a blind hole and may fitly sleeve the cylinder; the cylinder is an electromagnet, the moving mold is made of a diamagnetic material, and a paramagnetic suction plate is fixed in the central hole. The mold has higher moving mold changing speed and better stability of product demolding.

Description

technical field [0001] The invention relates to a mould for auto parts, in particular to a mould for a car reading light bracket which can be stably demolded. Background technique [0002] The middle reading light in the car is mainly composed of a base, a reading light bracket, a front cover, a transparent cover, and a control knob. The quality of the existing domestic intermediate reading lights has not yet passed the standard, and there are problems of short service life and high frequency of replacement; the most important part that does not pass the standard is the reading light bracket, because the structure of the reading light bracket is equipped with multiple electric Contact the copper sheet insert, which involves the design and production technology of the mold used for the reading light bracket. The reading light bracket mold includes a moving mold (reverse mold) and a static mold (front mold). The current conventional method is to insert the electrical contact ...

AI Technical Summary

Problems solved by technology

The quality of the existing domestic intermediate reading lights has not yet passed the standard, and there are problems of short service life and high frequency of replacement; the most important part that does not pass the standard is the reading light bracket, because the structure of the reading light bracket is equipped with multiple electric Contact the copper sheet insert, which involves the design and production technology of the mold used for the reading light bracket

The reading light bracket mold includes a moving mold (reverse mold) and a static mold (front mold). The current conventional method is to insert the electrical contact copper sheet directly into the static mold on the injection molding machine. One, such a cycle, the work efficiency is extremely low, and at the same time, because the insertion is directly inserted into the static mold on the injection molding machine, it is difficult to grasp the flatness of the electric contact

Chinese patent ZL201020049853.1 discloses a middle reading lamp bracket mold for automobiles, which adds a movable mold for pre-installing electric contacts on the basis of conventional dynamic molds and static molds, and the movable mold is limited on the static mold, so that It solves the problems of low efficiency and low flatness of conventional manufacturing methods

However, when demoulding, the central hole wall of the movable mold is attached to the knob hole of the product. On the one hand, the knob hole of the product has burrs, which causes the appearance of the product to be irregular. On the other hand, the adhesion cannot be achieved. Ensure that the mobile mold will be with the product every time the mold is opened, causing the mobile mold and the product to fall, causing inconvenience to the replacement of the mobile mold, and the speed of reinstalling the mobile mold is also a technical problem

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