Major-minor multi-push injection mold pushing mechanism

Abstract

The invention provides a main and auxiliary multi-top injection molding top mold mechanism, which includes a movable template, an ejection cylinder, a support rod, an ejector plate, and an ejector rod, and the ejector plate is connected with an ejector rod passing through the movable template , characterized in that: the movable template is provided with ribs, the ribs are parallel to the main body of the movable template, the ejector plate is located between the ribs and the main body of the movable template, the support rod passes through the ejector plate, The two ends are fixedly connected to the rib plate and the main body of the movable formwork respectively. The ejection cylinder includes a main ejection cylinder and an auxiliary ejection cylinder. The main ejection cylinder is directly connected to the rib plate, and its piston rod is connected to the ejector plate. connected, the auxiliary ejector cylinder is installed on the main body of the movable template, and its piston rod is also connected with the ejector plate. The ejector mold mechanism has sufficient strength and rigidity, and the ejection force is large and uniform, so that the force on the mold is evenly balanced, which can prolong the service life of the mold and effectively improve production efficiency and product qualification rate.

Description

technical field [0001] The invention relates to an injection molding top mold structure, in particular to a main and auxiliary multi-top injection molding top mold mechanism. Background technique [0002] The ejector mechanism of the injection molding machine is used to eject the molded product from the mold. Most of the existing injection molding machines adopt a single-cylinder direct-push top mold mechanism. This type of top mold mechanism is shown in Figure 1. The ejector cylinder 1 is fixedly connected with the movable template 3 through the support rod 2, the ejector plate 4 is connected with the piston rod of the ejector cylinder 1, and the ejector plate 4 is connected with the ejector plate at the same time. The rods 5 are connected, and the support rod 2 passes through the ejector plate 4, which is equivalent to the guide rod of the ejector plate 4, and the ejector plate 4 can be driven by the ejector cylinder 1 to move along the support rod 2. There are following...

AI Technical Summary

Problems solved by technology

There are following defects in this top mold mechanism: (1) the diameter of the support rod is too large, and it takes up a lot of space

(4) Reduce the service life of the mold

The number of ejector rods is small, so that the mold is subjected to uneven force, easy to deform, and accelerates mold wear

(5) Leading to template explosion

Long-term uneven force on the formwork can easily cause the formwork to explode

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