Cold extrusion mould for double-head pipe joint

A technology of cold extrusion and double-headed tubes, which is applied in the direction of metal extrusion dies, etc., can solve the problems of low work efficiency, difficulty in demoulding the lower mold sleeve, middle mold sleeve and upper mold sleeve, and the inability to demould, so as to improve Production efficiency, avoiding the cutting of more materials, and the effect of reducing the defective rate

Inactive Publication Date: 2012-12-26
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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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

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

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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 processing or direct machine processing methods are often used. Using the casting method, the cylindrical blank produced will have defects such as sand holes, pores, sand inclusions, and then need to be machined to become a finished product. The product defect rate is high and the efficiency is low; when it is directly processed by the machine tool, it needs to be removed. Multi-material, time-consuming and laborious production costs are high. [0003] The prior art cold extrusion die includes a die handle, an upper mold plate, an upper mold backing plate, an upper fixing plate, an upper mold sleeve, a middle mold sleeve, a lower mold sleeve, a lower fixing plate, a lower mold ...

Claims

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Application Information

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