Nodular cast iron pipe die

Abstract

The invention discloses a nodular cast iron pipe die which comprises a supporting base, a first annular guide rail and a cast iron pipe die body. The first annular guide rail is connected to the supporting base, the cast iron pipe die is horizontally inserted into the first annular guide rail in a penetrating mode, and the rear end of the cast iron pipe die is rotationally connected into the first annular guide rail. A rotating speed reduction preventing mechanism is connected between the cast iron pipe die and the supporting base. When the rotating speed of the cast iron pipe die driven by the main driving motor is reduced, the centrifugal force is reduced, so that the main magnet block slides back under the action of resilience force of the first connecting spring, the adsorbed iron sliding block is pulled to be separated from the auxiliary magnet block and extruded to the pressure sensing switch, then the position of the auxiliary driving motor is fixed, and after the auxiliary driving motor is started, the pressure sensing switch is pressed to the pressure sensing switch. The auxiliary driving gear drives the cast iron pipe die to continuously rotate at a certain rotating speed, rotating speed recovery and centrifugal force recovery are achieved, and cast iron pipe manufacturing can be continuously carried out conveniently.

Description

technical field [0001] The invention relates to the technical field of ductile iron pipe molds, in particular to a ductile iron pipe mold. Background technique [0002] The essence of cast iron steel pipe is nodular cast iron pipe. Because nodular cast iron pipe has the essence of iron and the performance of steel, it is called this way. During the production and manufacturing process, magnesium is mainly added to molten iron, and then it is passed through the molten iron conduction equipment. It is imported into the cast iron pipe mold, and the cast iron pipe mold rotates under the driving device, relying on centrifugal force to make the imported molten iron diffuse and form; generally, the ductile iron pipe mold is driven by driving components such as a driving motor to rotate, and the general driving motor itself The rotating speed depends on the electric power supply and its internal rotating speed auxiliary components. Since the production process of the ductile iron pi...

AI Technical Summary

Problems solved by technology

[0002] The essence of cast iron steel pipe is nodular cast iron pipe. Because nodular cast iron pipe has the essence of iron and the performance of steel, it is called this way. During the production and manufacturing process, magnesium is mainly added to molten iron, and then it is passed through the molten iron conduction equipment. It is imported into the cast iron pipe mold, and the cast iron pipe mold rotates under the driving device, relying on centrifugal force to make the imported molten iron diffuse and form; generally, the ductile iron pipe mold is driven by driving components such as a driving motor to rotate, and the general driving motor itself The rotating speed depends on the electric power supply and its internal rotating speed auxiliary components. Since the production process of the ductile iron pipe mold depends on the centrifugal force, once the driving motor of the existing ductile iron pipe mold decreases in speed, it will produce The centrifugal force is reduced, so that the normal formation of the pipe body cannot be ensured, and the existing pipe mold cannot prevent the speed from decreasing, and cannot repair the situation of the speed reduction in time

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