Cone forming die used for conical pipe machine

Abstract

The invention discloses a cone forming die used for a conical pipe machine. The die is formed by splicing at least three die blocks, wherein the splicing part of each die block is triangular, a partial conical surface groove is arranged on one side at the top end of the splicing part, a gap is reserved between two side walls of the splicing part of the two adjacent die blocks and is closed at the splicing central position of the die blocks, and the partial conical surface grooves in the die blocks are spliced to form a complete conical hole. According to the technical scheme of the invention, the difficult problem that a steel pipe with large diameter can not form a solid tip in the cone forming process in the prior art can be solved. The cone forming die has the characteristics that the replacement is simple, the service life is long, the processing efficiency is high, and the conical degree with different lengths can be processed by replacing the die.

Description

technical field [0001] The invention relates to a conical mold for a conical pipe machine. Background technique [0002] The patent document with the publication number CN2663045Y discloses a steel pipe tapered pipe machine, which includes a machine base, a housing on the machine base, a main shaft driven by a motor through a belt pulley, a mold and a hammer head are installed in the mold cavity of the main shaft, and on the outer wall of the main shaft, A combined roller set is arranged between the outer wall of the hammer head and the shell. However, the mold therein is composed of upper and lower two-petal mold blocks. Because the two-petal mold blocks are in surface contact, and part of the conical grooves are formed on the joint surface, the existing technology cannot guarantee the full fit of the joint surface, so the two Part of the conical surface groove on the die block cannot be closed into a complete conical tip, and the active force cannot be applied to the tube...

AI Technical Summary

Problems solved by technology

However, the mold is composed of upper and lower mold blocks, because the two mold blocks are in surface contact, and some conical grooves are formed on the joint surface. The existing technology cannot guarantee the full fit of the joint surface, so the two Part of the conical groove on the die block cannot be closed into a complete conical tip, and the force cannot be applied to the tube tip, so that the steel pipe can only be processed into a conical tube, and a solid conical tip cannot be formed at the end of the tube

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