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A kind of spinning forming device of powder drug type cap

A technology of spin forming and liner, which is applied in the field of powder liner spinning device, which can solve the problem that it is difficult to meet the requirement of uniform circumferential density of high-quality liner, which affects product accuracy and mold life, and die Difficult to achieve rapid replacement and other problems, achieve high positioning accuracy and rotation stability, improve powder fluidity, and improve the effect of powder circumferential distribution uniformity

Active Publication Date: 2016-06-15
NORTH SCHLUMBERGER OILFIELD TECH XIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The structure is complex, the assembly accuracy is not easy to guarantee, the production efficiency is low, and the use cost is high
[0005] (2) The fluidity of the drug-type cover powder in the device is poor, resulting in uneven distribution of powder materials, and it is difficult to meet the requirements of uniform circumferential density inside the high-quality drug-type cover
[0006] (3) It is difficult to quickly replace the convex and concave molds of wearing parts, and the accuracy decreases after repeated positioning, which affects product accuracy and mold life

Method used

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  • A kind of spinning forming device of powder drug type cap
  • A kind of spinning forming device of powder drug type cap
  • A kind of spinning forming device of powder drug type cap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] According to the technical solution of the present invention, the upper mold in this embodiment adopts an adjustable air cushion structure, the height of the air cavity is 30-40mm, and the air pressure range is 0.2-0.4MPa. The parameters in Table 1 are used to press the DP36-2 type medicine cover.

[0044] The drug-mask material component of this embodiment is: conventional copper-tungsten-based drug-mask formula, wherein the tungsten content is less than 15%.

[0045] Relevant tests were carried out according to GB / T20488-2006 "Methods for Testing the Performance of Energy Concentrating Perforating Equipment for Oil and Gas Wells". Its penetration performance index is 20% higher than the national standard (GB / T20489-2006 "General Technical Specifications for Energy Concentrating Perforating Equipment for Oil and Gas Wells"), and its production efficiency and geometric dimension accuracy are high. See Table 2 for details.

Embodiment 2

[0047]This embodiment differs from Embodiment 1 in that a ball sleeve is used between the die and the fixed sleeve, and an elastic support device is used at the bottom. The ball sleeve adopts the specification of Φ80×5×75, the ball of the elastic device is Φ8, and the spring specification is Φ80×1.5×20.

[0048] The drug-mask material component of this embodiment is: a conventional copper-tungsten-based drug-mask formula, wherein the tungsten content is less than 15%.

[0049] Using the process parameters in Table 1 to press DP44-3 and DP46-1 drug-type covers, the geometric dimension accuracy is high, and the penetration performance index is 10%-15% higher than the national standard. See Table 2 for details.

[0050] Table 1

[0051]

[0052] Table 2

[0053]

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Abstract

The invention relates to a spin-forming device for a powder liner. The device comprises an upper module and a lower module, wherein the upper module comprises an upper template and a male die; the lower module comprises a lower template and a female die; the male die is arranged on the upper template through a floating device; the female die is arranged on the lower template through a low-spin friction device. According to the device, floating male die and adjustable air cushion structures are adopted, so that an original powder charging state can be changed, and powder can be uniformly distributed according to die cavities of the dies; a ball bushing and an elastic support device are adopted for the female die, so that the spinning resistance of the female die is greatly reduced, higher dynamic positioning accuracy and spinning stability are ensured, the flowability of metal powder can be improved, and the uniformity of circumferential density of the liner can be improved; in addition, the working accuracy of the dies is ensured, and requirements on key technical indexes of the liner are met.

Description

technical field [0001] The invention relates to the forming technology of a medicine-type cap, in particular to a powder medicine-type cap spinning forming device. Background technique [0002] The powder liner automatic spinning forming device is a key processing device to ensure performance indicators such as the density uniformity of the perforating bullet powder liner and high-efficiency forming. [0003] A representative automatic spinning device for powder drug type cover in the prior art is as follows: a kind of automatic spinning device for perforating bullet energy gathering cover disclosed in CN101628335A. The upper mold is composed of the punch bearing seat, the punch bearing end cover, the first deep groove ball bearing, the punch, the punch connecting plate, the upper supporting plate, the guide sleeve and the screw; the lower mold is composed of the mold opening cylinder, the mold opening Cylinder block, hydraulic motor, pinion, lower supporting plate, main sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/035
Inventor 郭惊雷王宝兴郭红军石健王锋李吏川钮元元孙阳关民王民杨毅
Owner NORTH SCHLUMBERGER OILFIELD TECH XIAN
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