A centrifugal cast pipe mold end cover

Abstract

The invention discloses a centrifugal casting pipe die end cover which comprises an upper end piece and a lower end piece, wherein the upper end piece and the lower end piece are integrally formed; first screw holes are symmetrically formed in the side face of the upper end piece; bulges are arranged on the first screw holes in a matching manner; the two bulges are clamped in kidney-shaped holes of the bracket of the end cover, the kidney-shaped holes can be still relied on to compress the bulges to enable the end cover not to loosen even if the die stops rotating and the end cover loses the compressing force of a fly hammer, and the situation that the end cover is not separated from the end cover when the die stops rotation or is inclined is ensured; two second screw holes are formed in the end face of the upper end piece; bolts are arranged on the second screw holes in a matching manner; during automatic clamping, a loading and unloading manipulator clamps the two bolts to realize installation, taking out and rotation of the end cover; a chamfer is formed in the inner side of the upper end piece; the lower end piece takes the shape of an inverted circular truncated cone; a multi-layer step is arranged on the inner side of the lower end piece; when a centrifugal casting pipe carries out spraying, the adhesive force of the end cover to paint can be increased, and an asbestos pad does not need to be mounted between the end cover and the die.

Description

technical field [0001] The invention belongs to the field of component manufacturing, and in particular relates to an end cover of a centrifugal casting pipe mold. Background technique [0002] During the production of centrifugal cast pipe, end caps need to be installed at both ends of the mold to seal the molten iron so that the molten iron solidifies in the mold to form a cast pipe. [0003] Generally, pins are used to manually lock the end cap or fly hammer to automatically lock the end cap, and the end cap bracket and the end face of the mold cooperate to block the molten iron. Generally, a groove is directly processed on the end surface of the mold to fix the end cover. When the end surface runs out of iron, the mating surface is often burned, and the mold repair is very troublesome. Even the mold is directly scrapped, resulting in unnecessary waste. [0004] When installing the end cover of the pin type, you need to use a hammer to knock three pins into the oblique h...

AI Technical Summary

Problems solved by technology

After spraying, once the mold stops rotating, the flyweight will lose centrifugal force and cannot press the end cap, causing the end cap to loosen, and the paint at the joint between the end face of the end cap and the end face of the mold will collapse and fall off, and the falling paint will fall into the end when the mold rotates again. The sealing between the cover and the mold fails, and the molten iron splashes along the gap to the outer circumference during casting, causing running iron, which affects product quality and poses a safety hazard (high temperature molten iron is easy to burn the operator)

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