A car reading light bracket mold with stable demoulding

Abstract

The invention relates to an automobile reading lamp holder mould capable of stably de-molding. The automobile reading lamp holder mould comprises a static mould and a movable mould, and further comprises a moving mould, wherein a positive model and a negative model of the reading lamp bracket are respectively arranged on the static mould and the movable mould; plug pin holes of electric contact pieces are formed in the positive surface of the moving mould; plug holes of the electric contact pieces are formed in positions, corresponding to the plug pin holes, on the negative surface of the moving mould; a limiting hole for limiting and placing the moving mould is formed in the movable mould; the limiting hole penetrates through the movable mould; when the positive surface and the negative surface of the moving mould are fixed in the limiting hole by connecting side by side, the plug pin holes of the moving mould on a molding surface are oppositely fixed to the positions of the electric contact pieces on a negative mould; a cylinder for molding a knob hole is formed in the static mould; a central hole is formed in the moving mould; the central hole is a blind hole and can be matched on the cylinder in a sleeving mode; the cylinder is made of a magnet; the moving mould is made of an anti-magnetic substance; and an adsorption plate with paramagnetism is fixedly arranged in the central hole. The mould increases the speed of replacing the moving mould, and enables the product de-molding to be more stable.

Description

technical field [0001] The invention relates to a mold for automobile parts, in particular to a mold for a car reading lamp bracket with stable demoulding. 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 been completely passed the test, and there are problems of short service life and high replacement frequency; among them, the most important component that fails to pass the test is the reading light bracket, because the structure of the reading light bracket is provided with multiple electric lights. Contact the copper insert, which involves the design and fabrication of the mold used for the reading light bracket. The reading lamp bracket mold includes a movable mold (reverse mold) and a static mold (front mold). At present, the conventional method is to insert the electrica...

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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