Bridging fibril welding set for digital electronic detonator

A digital electronic detonator and welding device technology, which is applied in the field of detonator manufacturing and pyrotechnics manufacturing, can solve the problems of gunpowder explosion and the limitation of the use range of ordinary detonators, so as to increase the contact area, improve the resistance to electrochemical corrosion, and improve the welding performance. quality effect

Inactive Publication Date: 2010-08-25
北京维深数码科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of production, transportation and use, once the static electricity is added between the foot wire and the metal shell, spark discharge will be caused in the ignition powder and its vicinity, and in severe cases, it will cause the ignition powder to ignite and cause an accidental explosion accident
Therefore, the scope of use of ordinary detonators is limited to a certain extent

Method used

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  • Bridging fibril welding set for digital electronic detonator
  • Bridging fibril welding set for digital electronic detonator
  • Bridging fibril welding set for digital electronic detonator

Examples

Experimental program
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Embodiment 1

[0014] As shown in Figure 1, the bridge wire welding device for digital detonators consists of two metal legs 3, a charge 1, a fixed block 4 and a casing 5. The charge 1 includes a bridge wire 2 and gunpowder coated on the bridge wire; two The metal leg wire 3 is located in the housing 5 and extends to the outside of the housing 5, one end of the two metal leg wires 3 located in the housing 5 is used for welding the bridge wire 2, and the two metal leg wires 3 are used to extend to one end outside the housing 5 Used to connect the ignition circuit of the digital electronic detonator; the two metal legs 2 are sheet-shaped at both ends; the fixing block 4 is located in the housing 5 for fixing the two metal legs 3; the shape of the fixing block 4 is rounded Cube; the inner wall of the housing 5 has a groove that matches the shape of the fixed block.

[0015] As shown in Figure 1, the two metal legs 3 are in a sheet shape, and the width between the two metal legs is 2.6 mm to 2.9 mm...

Embodiment 2

[0022] In FIG. 2, the difference between this embodiment and the embodiment is that the shell does not surround the fixed block, but is connected to the metal leg of the welding bridge wire, and the other is the same as in FIG. 1.

[0023] In summary, the bridge wire welding device for digital electronic detonators provided by the embodiment of the present invention fixes the legs of the detonator in a fixed block, and there is a gap between the two legs in the fixed block, so that the two corners The lines are arranged in parallel to solve the problem that two lines are prone to short circuit.

[0024] Compared with the prior art, the present invention increases the contact area by adopting a sheet structure where the bridge wire is welded at the end of the leg, which can greatly improve the welding quality of the bridge wire joint, simplify the production process and reduce the process cost, which is beneficial to Improve the electrochemical corrosion resistance of the bridge wir...

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Abstract

The invention discloses a bridging fibril welding set for a digital electronic detonator, which comprises two metal leg wires, a medicament head, a fixing block and an outer shell, wherein the two metal leg wires are positioned in the outer shell and extend outside the outer shell, and one end of the metal leg wires is used for welding bridging fibrils while the other ends are used for connecting an ignition circuit of the detonator; two ends of the two metal leg wires are flaky; the fixing block are positioned in the outer shell and is used for fixing the metal leg wires; and an inner wall of the outer shell is provided with a groove of which the shape is matched with that of the fixing block. The bridging fibril welding set improves the welding reliability and realizes automated welding operation. After welding, the electrical conductivity is good, and the resistance coefficient is ultra-low or is approximate to zero. The fixing block and the outer shell are integrated through injection molding to realize integration, and adopt anti-static polyvinyl chloride to prevent static electricity. The leg wires of the detonator are fixed in the fixing block to avoid short circuiting between the leg wires.

Description

Technical field [0001] The invention relates to the technical field of pyrotechnics manufacturing, in particular to the technical field of detonator manufacturing, in particular to a bridge wire welding device for digital electronic detonators. Background technique [0002] In recent years, digital electronic detonator technology has developed rapidly, and digital electronic detonators designed based on different technical factors have also emerged in an endless stream. The applicant has also applied for patents on intrinsic safety and biometrics (patent name: an intrinsically safe type). Electronic detonator initiation system, application number: 200810227329.6 and patent name: a digital electronic detonator and initiation system based on biometric technology, application number: 200810227330.9), which meets certain market needs. But at present, the bridge wire of digital electronic detonator is directly welded to two twisted legs. After power on, the bridge wire heats up to ach...

Claims

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Application Information

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IPC IPC(8): B23K20/10B23P19/00B23K103/08
Inventor 李长军王大志李代万蒋洪亮郑兴旺
Owner 北京维深数码科技有限公司
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