Manufacturing equipment of high steel grade thick wall petroleum casing pipe diameter variable joints

Abstract

The invention discloses manufacturing equipment of high steel grade thick wall petroleum casing pipe diameter variable joints. The manufacturing equipment comprises a fixed pedestal, a machine body supporting rack, a hydraulic device, a mold, a rapid cooling device, an injection mold housing, a guiding mechanism, a rapid cooling mechanism, a piston movement mechanism, a power transmission mechanism, a power motor mechanism, and a damping buffer mechanism; one end of the power motor mechanism is connected with the tail end of the power transmission mechanism through vertical meshing. The rapidcooling device is adopted for injection mold rapid cooling, rapid condensate liquid circulating is realized, injection mold rapid cooling is realized, injection mold cooling speed is accelerated effectively, and product production efficiency and quality are improved.

Description

technical field [0001] The invention relates to the field of variable-diameter joints of casing pipes, in particular to a manufacturing equipment for variable-diameter joints of high-grade thick-walled petroleum casing pipes. Background technique [0002] At present, the general pipe joint equipment adopts the extrusion structure of the open conical die base. When extruding, the metal pipe fittings are formed through the die base with a conical inner wall, which is more suitable for the extrusion of large-diameter short pipes. Due to the use of an open tapered die base structure, the extrusion of slender pipes is limited, and the cooling speed of the mold is too slow and not in place when the current equipment is manufacturing the variable diameter joint, which leads to poor cooling effect of the mold and affects Molding effect. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention is realized through the following technical...

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Problems solved by technology

[0002] At present, the general pipe joint equipment adopts the extrusion structure of the open conical die base. When extruding, the metal pipe fittings are formed through the die base with a conical inner wall, which is more suitable for the extrusion of large-diameter short pipes. Due to the use of an open tapered die base structure, the extrusion of slender pipes is limited, and the cooling speed of the mold is too slow and not in place when the current equipment is manufacturing the variable diameter joint, which leads to poor cooling effect of the mold and affects Forming effect

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