Extrusion die of press pipe fitting

Abstract

The invention provides an extrusion die of a press pipe fitting and belongs to the mechanical technical field. The extrusion die of the press pipe fitting solves the problem that the press effect on pipe fittings of the existing extrusion die is poor. The extrusion die of the press pipe fitting comprises a fixed die which is circular-arc-shaped and two moving dies which are circular-arc-shaped; the inner ends of the two moving dies are hinged to two ends of the fixed die respectively; the outer ends of the two moving dies can be buckled together; the inner sides of the fixed die and the moving dies form a press ring which is in an annular shape and is used for pressing the outer side of the pipe fitting after the outer ends of the two moving dies are buckled together; the press ring is provided with a plurality of press portions which are uniformly distributed; the contact between the press portions and the pipe fitting can be converted from line contact or local surface contact into the state that the press portions press the outer side of the pipe fitting completely after the extrusion die is buckled. According to the extrusion die of the press pipe fitting, the contact between the press portions and the pipe fitting can be converted from the line contact or the local surface contact into the state that the press portions press the outer side of the pipe fitting completely when the pipe fitting is pressed, so that the intensity of pressure on the pipe fitting of the press portions is large when press is just started, the press portions completely abut against and press the outside of the pipe fitting finally, and accordingly the press effect of the pipe fitting is good.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a ring pressing die, in particular to a ring pressing die for clamping type pipe fittings. Background technique [0002] In recent years, compression fittings have been used first in many domestic medical institutions and star hotel projects. A large number of engineering installations and repeated test results show that the crimping link in the installation of compression fittings is particularly important. Factors such as whether the crimping die can be crimped in place, whether the die will be deformed due to wear and tear directly affect the sealing performance and pull-out resistance of the compression fittings. If the crimping of the pipe fittings is not in place, the pipe fittings are prone to leakage. Therefore, the crimping die of the press-type pipe fittings is one of the important conditions to ensure the quality of the press-type pipes. [0003] Chinese invention pa...

AI Technical Summary

Problems solved by technology

Therefore, in the above-mentioned mold, the initial contact pressure between the mold and the pipe fittings is relatively small, and i

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