Riser pressurizing equipment

Abstract

The invention relates to the technical field of casting riser feeding, and discloses riser pressurizing equipment. The riser pressurizing equipment comprises a pouring machine body and a hydraulic cylinder, wherein a top plate is arranged above the pouring machine body, supporting rods are fixedly arranged on the two sides of the lower surface of the top plate correspondingly, the lower ends of the two supporting rods are fixedly connected with the two sides of the upper surface of the corresponding pouring machine body, the hydraulic cylinder is fixedly arranged on the lower surface of the top plate, a lower die is fixedly arranged on the upper surface of the pouring machine body, an upper die is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder, and cavities areformed inside the lower die and the upper die, a sprue and a riser are formed in the two ends of the upper surface of the upper die correspondingly and communicate with the corresponding cavities, androtating rods are rotationally arranged on the two sides of the lower die through rolling bearings. According to the riser pressurizing equipment, the riser can be pressurized conveniently, and the process yield of a product is effectively improved.

Description

technical field [0001] The invention relates to the technical field of casting riser feeding, in particular to a pressurizing device for a riser. Background technique [0002] Gravity casting is the most commonly used casting method in the field of casting. At present, the static pressure of molten metal in the gate and riser is used to feed the product, and the feeding effect depends on the pouring of molten metal in the gate and riser. Due to the gravity (static pressure) generated by the high height, it is necessary to inject an excessive amount of molten metal, resulting in more gate and riser heads remaining after feeding in the gate and riser, which reduces the process yield and consumes more materials. It costs energy and the production cost is high. [0003] Wherein the patent No. CN110625069A discloses a pressurizing device for a riser. When in use, after the metal upper mold and the metal lower mold are closed, the riser sealing cylinder presses and seals the rise...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a pressurizing device for the riser, which has the advantages of being able to pressurize the riser conveniently, effectively improving the process yield of the product and having low cost, and solves the problem of using a riser to pressurize the riser. The pressurization equipment only pressurizes the riser, but the gate is still open, resulting in the problem of insufficient pressurization effect and high cost

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