A kind of preparation method and preparation device of reinforced concrete pipe

Abstract

The invention discloses a method and device for preparing a reinforced concrete pipe. The device comprises a main machine frame, an unloading hopper, an extruding device and a pipe mold assembly. Theextruding device comprises a spindle in the vertical direction and an extruding head fixedly connected to the bottom end of the spindle. The pipe mold assembly comprises an outer mold and a core mold.The core mold comprises a reinforced concrete keel, an inserting opening bottom mold and a rebar top mold. The inserting opening bottom mold is in a shape of a cap with a hole in the middle and comprises an annular plate and a tubular flange. The reinforced concrete keel is in a barrel-shaped cage shape, the rebar top mold is in an annular column shape, and one end of the reinforced concrete keelis placed on the inner side of the inserting opening bottom mold. The rebar top mold is fixedly arranged above the reinforced concrete keel. By arranging the inserting opening bottom mold at the bottom, subsequent materials can extrude materials at an inserting opening in the preparation process, so that the inserting opening end of the reinforced concrete pipe is compact, the service life of thereinforced concrete pipe is long, and the quality is high.

Description

technical field [0001] The invention relates to a pipe making machine for manufacturing reinforced concrete pipes, in particular to a preparation method and a preparation device for reinforced concrete pipes. Background technique [0002] Cement pipes have a wide range of uses, generally used for rainwater and sewage discharge in cities and towns, and can be used for tap water, electric power and telecommunications, gas power, etc., which need to lay pipelines underground. Cement pipe making machine, the main structure is divided into two parts: machinery and mold. According to its structure, it can be divided into hanging roller pipe making machine and centrifugal pipe making machine. Compared with hanging roller pipe making machine, centrifugal pipe making machine The post-concrete has good compactness, the position stability of the steel skeleton is good, and no collapse will occur. Therefore, after the centrifugation, it can directly enter the steam curing pit, and its s...

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Problems solved by technology

[0005] However, the cement pipe material enters from the top and directly flows into the inner side of the outer mold under the action of gravity. The bottom end of the cement pipe is also under the pressure of the top material during the molding process by the extrusion device, and it can be formed relatively densely, and the top does not exist. The pressure of the extrusion device alone makes the strength of the socket end higher. For the receiving pipe, the strength of the socket end is higher, which is conducive to the higher strength after splicing. However, for reinforced concrete pipes such as grooved pipes, the socket end There is also a sealing groove for installing sealant in the circumference of the gap, which requires high strength of the socket pipe. When using this radial extrusion pipe making machine, the socket strength of the reinforced concrete pipe is low, making the use of reinforced concrete pipe Short life, poor quality, easy to be at a disadvantage in competition

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