Mold ejection system and motor core rotor aluminum die-casting mold using the ejection system

Abstract

The invention discloses a die ejection system which comprises a vertical main ejection cylinder, an ejection rod of the main ejection cylinder is upward, and a through hole vertically penetrates upwards from the bottom surface of a piston of the main ejection cylinder to the upper end face of the ejection rod of the main ejection cylinder; a secondary ejection rod is slipperily arranged in the through hole, the secondary ejection rod is provided with a secondary piston, and an effect of sealing is achieved between the secondary piston and the through hole; the upper end of the secondary ejection rod extends out of the upper end face of the ejection rod of the main ejection cylinder; the lower end face of the piston of the main ejection cylinder is provided with a plugging block for plugging the through hole, the plugging block is provided with a breakthrough hole, and the breakthrough hole is communicated with the through hole; and the breakthrough hole is connected with a lower oil pipe, and a through hole above the secondary piston is connected with an upper oil pipe. A motor core rotor aluminum die-casting die takes the die ejection system as an ejection mechanism. According to the invention, through two times of ejection of the main ejection cylinder and the secondary ejection rod, molding products still at a high temperature can be ejected safely, and the ejection efficiency is high.

Description

(1) Technical field [0001] The invention relates to a mold ejection system and an aluminum die-casting mold for a motor iron core rotor. (2) Background technology [0002] NEO motor iron core rotor is an essential part of home appliance motors such as air conditioners (indoor units, outdoor units), washing machine motors, etc., especially in brushless DC motors with a new concept of low energy consumption and green environmental protection. One can imagine. Due to the broad market prospects of the new concept DC brushless motor, many manufacturers at home and abroad are researching and developing, but the plastic-encapsulated motor is still in its infancy in China, and the design and manufacture of such molds are also traditional methods, especially the ejection mechanism. It is still a traditional thimble, which is not suitable for the ejection of the motor core rotor. (3) Contents of the invention [0003] In order to overcome the above-mentioned disadvantages of the e...

AI Technical Summary

Problems solved by technology

Due to the broad market prospects of the new concept DC brushless motor, many manufacturers at home and abroad are researching and developing, but the plastic-encapsulated motor is still in its infancy in China, and the design and manufacture of such molds are also traditional methods, especially the ejection mechanism. It is still a traditional thimble, which is not suitable for the ejection of the motor core rotor

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