Rotary extrusion secondary forming die for novel pipe fitting for decoration and forming method thereof

Abstract

The invention provides a rotary extrusion secondary forming die for a novel pipe fitting for decoration. The rotary extrusion secondary forming die comprises an inner forming male die mechanism and an outer forming female die mechanism. The inner forming male die mechanism comprises a male die, a male die guiding mechanism, a balance mechanism and a rotation mechanism. The outer forming female die mechanism comprises at least two outer forming female die pieces and a locking mechanism. The male die guiding mechanism comprises a male die transmission medium, a male die stretching and retracting control mechanism and an end cover. The balance mechanism is a swing mechanism and arranged between the pipe fitting to be formed and the inner forming male die mechanism. The rotation mechanism and the male die guiding mechanism are coaxial and are connected through a fastening screw. The inner wall of each outer forming female die piece is provided with a groove matched with the outer surface of the male die in shape. The outer forming female die pieces are locked through the locking mechanism. The rotary extrusion secondary forming die for the novel pipe fitting for decoration is compact in structure, easy to install and stable in operation. The shape which is difficult to form by the adoption of the prior art can be formed on the pipe fitting. According to the rotary extrusion secondary forming die for the novel pipe fitting for decoration, a cold forming method is adopted, the pipe fitting does not need to be heated, and the working environment is good.

Description

technical field [0001] The invention relates to the field of processing and forming of decorative pipe fittings, in particular to a rotary extrusion secondary molding die and molding method of decorative pipe fittings. Background technique [0002] Thin-walled metal long tubes are widely used in daily life, especially in some decorative occasions. In order to achieve a certain decorative effect, it is necessary to process different convex shapes on the outer wall of the long pipe fitting. To achieve this function in the current technology generally requires a relatively cumbersome process, with low efficiency and high cost. Contents of the invention [0003] The invention provides a rotary extrusion secondary molding die and a molding method for a novel decorative pipe fitting, in which a required shape is processed on the pipe fitting through the cooperation of a concave die and a punch die. [0004] In order to achieve the above object, the technical solution of th...

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Problems solved by technology

To achieve this function in the current technology generally re

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