Casting mold of mold core combination structure

Abstract

The invention discloses a casting mold of a mold core combination structure. The casting mold comprises a push plate, push rods, cushion blocks, a movable mold plate, a guiding column, mold cores, a fixed mold plate, a sprue and a sprue sleeve. The push rods are arranged on the upper surface of the push plate. The cushion blocks are arranged on the same push plate surface where the push rods are located. The movable mold plate is provided with an inner sunken movable mold cavity and a movable mold insert matched with the movable mold cavity, the movable mold cavity is internally provided with the multiple mold cores, and the lower ends of the mold cores are connected with the movable mold plate. Each mold core is composed of a mold core kernel and a plurality of mold core sliding blocks surrounding the mold core kernel. The lower surface of the fixed mold plate is provided with a fixed mold insert, and the sprue and the sprue sleeve are arranged on the upper surface of the fixed mold plate. In mold opening, the multiple mold core sliding blocks, surrounding the exteriors of the mold core kernels, in the mold cores can move towards the fixed mold plate and are finally separated from the mold core kernels. After a casting and the mold core sliding blocks are separated from the mold, one single mold core sliding block can be independently taken out from the interior of the casting and reused. The time and manual cost which are increased due to new sand cores needing to be manufactured in each time of casting are reduced in the casting process.

Description

technical field [0001] The invention relates to the technical field of casting molds, in particular to a casting mold with combined core structure. Background technique [0002] Casting is the process of pouring smelted metal liquid into the mold, cooling and solidifying to obtain the required shape and performance of the parts. The casting process can be divided into gravity casting, pressure casting and sand casting. Among them, sand casting is the most commonly used casting method. Sand casting is suitable for the production of various shapes, sizes and various commonly used alloy castings. The investment in equipment is small, and the raw materials are easy to obtain and the price is low. [0003] In the actual production process, castings with conical structures are often encountered, and their structural characteristics are that the size of the opening is smaller than the size of the closed bottom end. During the demoulding process, the separation of the casting fro...

AI Technical Summary

Problems solved by technology

[0004] The downside of current technology is that each time a casting is formed, a sand core is required

Moreover, sand cores cannot be reused, so a corresponding number of sand cores need to be produced for the produc

Images