Cold extrusion mould for double-head pipe joint

A cold extrusion, double-ended tube technology, applied in the direction of metal extrusion dies, etc., can solve the problems of low work efficiency, inability to demold, difficulty in demoulding the lower die sleeve, middle die sleeve and upper die sleeve, etc. Production efficiency, avoid cutting more material, reduce defective rate

Inactive Publication Date: 2010-09-01
NANTONG JINDE STEEL STRUCTURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cold extrusion die with this structure can process double-ended pipe joints, it is very difficult to demould the lower die sleeve, middle die sleeve and upper die sleeve after forming, or even unable to demould, resulting in low work efficiency

Method used

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  • Cold extrusion mould for double-head pipe joint
  • Cold extrusion mould for double-head pipe joint
  • Cold extrusion mould for double-head pipe joint

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0023]The cold extrusion die of the double-ended pipe joint of the present invention comprises an upper template 1, a lower template 2, a guide post 3, a guide sleeve 4, a bolt 5, a screw 6, a mold handle 7, and the upper end surface of the lower template 1 as the base surface from the bottom The lower die backing plate 8, the lower die fixing plate 9, the lower die cover 10, the middle die cover 11, the upper die cover 12, the upper die fixing plate 13, and the upper die backing plate 14 are successively installed on the top, and the middle die cover 11 The cavity cross-section is pentagonal; the ejection device I is provided between the lower die fixing plate 9 and the lower die case 10, and the ejection device is provided between the middle die case 11 and the upper die case 12. II; the left and right sides of the upper mold fixing plate 14 a...

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PUM

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Abstract

The invention discloses a novel cold extrusion mould for a double-head pipe joint, which comprises an upper mould (1), a lower mould plate (2), guide posts (3), guide sleeves (4), bolts (5), screw nails (6) and a shank (7), wherein the cavity cross section of a medium mould sleeve (11) is pentagonal; ejection devices are arranged between a lower mould fixing plate (9) and a lower mould sleeve (10) and between a medium mould sleeve (11) and an upper mould sleeve (12); the right and left sides of an upper mould fixing plate (14) are fixed with supporting plates (21); the right and left supporting plates (21) extend downwardly and are respectively arranged at the left and right sides of the upper mould sleeve (12), the medium mould sleeve (11) and the lower mould sleeve (10); and the supporting plate (21),is matched with the upper mould sleeve (12), and the medium mould sleeve (11) in a sliding manner and connected with each other. The invention has high production efficiency and can automatically demould.

Description

technical field [0001] The invention relates to a cold extrusion die, in particular to a cold extrusion die for a double-ended pipe joint. Background technique [0002] At present, double-ended pipe joints are widely used in industry. In the manufacture of double-ended pipe joint products, casting, machine tool processing or direct machine tool processing are often used. Using the casting method, the cylindrical blanks produced will have defects such as trachoma, pores, sand inclusions, etc., and then need to be processed by machine tools to become finished products. The product defective rate is high and the efficiency is low; Multiple materials, time-consuming and labor-intensive production costs are high. [0003] And the cold extrusion mold of prior art comprises mold handle, upper template, upper mold backing plate, upper fixed plate, upper mold cover, middle mold cover, lower die cover, lower fixed plate, lower mold backing plate and lower template. Described lower ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02B21C35/02B21C37/28
Inventor 陆颂荫
Owner NANTONG JINDE STEEL STRUCTURE CO LTD
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