Feeding system of horizontal cold chamber die casting machine

Abstract

The invention discloses a feeding system of a horizontal cold chamber die casting machine. The feeding system comprises a charging barrel, wherein a plunger is arranged in the charging barrel; the tail end of the plunger is connected with a driving mechanism; the side wall of the charging barrel is provided with a molten metal passage; the molten metal passage is communicated into a metal smelting chamber through a pipeline; the plunger comprises a first sealing part and a second sealing part which are axially spaced from each other; a cavity among the first sealing part, the inner wall of the charging barrel and the discharge port of the charging barrel form a pressure chamber for storing molten metal to be injected; a cavity among the first sealing part, the second sealing part and the inner wall of the charging barrel form a pressure-free chamber; the molten metal passage is suitable for communicating the pressure chamber when the plunger is positioned at an initial position and is suitable for communicating the pressure-free chamber when the plunger is used for performing injection or reciprocating motion. According to the feeding system of the horizontal cold chamber die casting machine, the quantity of the molten metal injected into the charging barrel is convenient to control, the injection time is shortened, and the die casting efficiency is improved.

Description

technical field [0001] The invention relates to a feeding system for a horizontal cold chamber die-casting machine, which belongs to the technical field of die-casting equipment feeding. Background technique [0002] Die casting is to inject a molten alloy into the barrel, and then inject a certain amount of molten alloy into the cavity through the plunger arranged in the barrel, and form a casting after cooling and molding. [0003] The barrel in traditional die-casting equipment can only be filled with a certain amount of molten metal according to the size of the casting. After the injection is completed, the plunger is reset to the initial position, and a certain amount of molten metal is added to the barrel again for the next die-casting. Due to the high temperature of the molten metal, it is very dangerous to the operator. Generally, tools such as a spoon are used to add the molten metal into the pressure chamber of the barrel, and the spoon is fed from the metal meltin...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome that the barrel of the existing cold die-casting device can only inject the molten metal of a single casting each time, the injection amount is difficult to control, it is easy to cause waste of materials, and the die-casting cycle is long , The disadvantages of low production efficiency, thus providing a new type of feeding system for horizontal cold chamber die-casting machines

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