CN117799111A - How to make electronic detonator pins that are not easy to short-circuit - Google Patents
How to make electronic detonator pins that are not easy to short-circuit Download PDFInfo
- Publication number
- CN117799111A CN117799111A CN202410002021.0A CN202410002021A CN117799111A CN 117799111 A CN117799111 A CN 117799111A CN 202410002021 A CN202410002021 A CN 202410002021A CN 117799111 A CN117799111 A CN 117799111A
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- Prior art keywords
- electrode lead
- negative electrode
- positive electrode
- wire
- spiral
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
- B29C45/14655—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components connected to or mounted on a carrier, e.g. lead frame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/36—Plugs, connectors, or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuses (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention relates to the field of civil explosive equipment, in particular to a manufacturing method of an electronic detonator leg wire which is not easy to short circuit; the positive electrode lead and the negative electrode lead skillfully use the cylindrical limit post as a limit tool, one end of the positive electrode lead and one end of the negative electrode lead are alternately and equi-directionally staggered spirally wound on the locating rod, the locating rod is pulled out, the spiral section is translated, and then injection molding is carried out to form a manufacturing method of the plastic plug, so that the positive electrode lead and the negative electrode lead form a space twisted shape in the plastic plug, the positive electrode lead and the negative electrode lead form a larger space volume and a larger surface area in the plastic plug, the tensile resistance of the leg wire is greatly improved, and the diameter of the spiral is sufficiently large in the spiral winding and attaching process, so that the bending degree of the lead is very small compared with that of the traditional twist-shaped lead, the insulating coating layer caused by excessive bending of the lead per se is effectively avoided, and the positive electrode lead and the negative electrode lead have sufficient spacing through translation, so that the leg wire is effectively prevented from being shorted in the plastic plug.
Description
Technical Field
The invention relates to the field of civil explosive equipment, in particular to a manufacturing method of an electronic detonator leg wire which is not easy to short.
Background
In the manufacturing process of the electronic detonator leg wire, one ends of the two conductive leads are required to be exposed out of the external coating layer, the two leads are twisted into a twisted shape, and then the twisted wire core is placed in an injection molding cavity for injection molding, so that the twisted wire core is buried in an injection molded plastic plug.
Because the wire includes metal core and outside cladding's insulating coating, in above technology, in order to prevent that the sinle silk of two wires from taking place the short circuit, can not expose metal core in the portion that two wires twisted into the twist, otherwise very take place the short circuit easily, and when two wires twisted into the twist each other, the insulating coating of two wires twines the center and can become thin when twisting the twist, it is virtual, there is the condition that leaks the core virtual joint, and two wires twist into the twist and make the clearance very little between two wires, the tiny clearance between two wires hardly penetrates in moulding plastics, consequently it is difficult to keep apart two wires completely insulating to mould plastics itself, under the external energy effect, there is the risk of mutual short circuit in two wire sinle silk. And the short circuit problem is difficult to troubleshoot.
Therefore, it is desirable to provide a method for manufacturing an electronic detonator leg wire which is not easy to short.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the manufacturing method of the electronic detonator leg wire is not easy to short.
In order to solve the technical problems, the invention adopts the following technical scheme:
the manufacturing method of the electronic detonator leg wire not easy to short circuit comprises the following steps:
step 1: alternately and equi-spacing and equi-directionally staggered spiral-winding one end of a positive lead and one end of a negative lead of the detonator on the positioning rod;
step 2: the cylindrical positioning rod is pulled away, the spiral parts of the positive electrode lead and the negative electrode lead are translated for a small distance, so that the spiral axes of the positive electrode lead and the negative electrode lead are parallel, the spiral sections of the positive electrode lead and the negative electrode lead are arranged in a plastic plug injection mold, and the wire heads of the positive electrode lead and the negative electrode lead are adjusted to be parallel to each other;
step 3: and (3) injection molding is performed in a plastic plug injection mold to form a plastic plug, so that the spiral sections of the positive electrode lead and the negative electrode lead are buried in the plastic plug.
In the method for manufacturing the electronic detonator leg wire not easy to be short-circuited, in the step 1, the spiral interval between the adjacent positive electrode wire and the adjacent negative electrode wire is 2-4mm.
In the method for manufacturing the electronic detonator leg wire which is not easy to be short-circuited, in the step 1, the positioning rod is cylindrical.
In the manufacturing method of the electronic detonator leg wire not easy to short, the diameter of the positioning rod is 5-7mm.
In the method for manufacturing the electronic detonator leg wire not easy to be short-circuited, in the step 2, the spiral parts of the positive electrode wire and the negative electrode wire are translated for a small distance, specifically, the spiral parts of the positive electrode wire and the negative electrode wire are translated for 1-2mm.
In the method for manufacturing the electronic detonator leg wire not easy to be short-circuited, the positioning rod is elliptical in shape.
In the manufacturing method of the electronic detonator leg wire not easy to short circuit, the oval long diameter of the positioning rod is 7-9mm, and the short diameter of the positioning rod is 5-7mm.
The invention also protects the electronic detonator leg wire manufactured by the manufacturing method of the electronic detonator leg wire which is not easy to be short-circuited.
The invention has the beneficial effects that: according to the manufacturing method of the electronic detonator leg wire which is not easy to short, the cylindrical limit posts are ingeniously utilized as limit tools, one end of the positive electrode wire and one end of the negative electrode wire are alternately and equidirectionally staggered and spirally wound on the locating rod, the locating rod is pulled out to translate the spiral section, and then injection molding is carried out to form the manufacturing method of the plastic plug, so that the positive electrode wire and the negative electrode wire form a space twisted shape in the plastic plug, the positive electrode wire and the negative electrode wire form larger space volume and surface area in the plastic plug, the tensile resistance of the leg wire is greatly improved, and the diameter of the spiral is large enough in the spiral winding process, so that the bending degree of the wire is small compared with the traditional twist shape, the insulation coating layer damage caused by excessive bending of the wire can be effectively avoided, and the space between the positive electrode wire and the negative electrode wire is enough through translation, and the problem of short circuit of the leg wire in the plastic plug is effectively prevented.
Drawings
Fig. 1 is a schematic structural state diagram of a positive electrode lead and a negative electrode lead after step 2 in a method for manufacturing an electronic detonator leg wire with less possibility of short circuit according to an embodiment of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1;
fig. 3 is a schematic structural diagram of a plastic plug related to a method for manufacturing an electronic detonator leg wire which is not easy to be shorted according to an embodiment of the present invention;
description of the reference numerals:
1. a positive electrode lead; 2. a negative electrode lead; 3. an outer coating layer; 4. a plastic plug.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, a specific embodiment of the invention relates to a method for manufacturing an electronic detonator leg wire which is not easy to be shorted, comprising the following steps:
step 1: one end of a detonator anode lead 1 and one end of a detonator cathode lead 2 are alternately and equi-directionally staggered and spirally wound on a positioning rod;
step 2: the cylindrical positioning rod is pulled away, the spiral parts of the positive electrode lead 1 and the negative electrode lead 2 are translated for a small distance, so that the spiral axes of the positive electrode lead 1 and the negative electrode lead 2 are parallel, the spiral sections of the positive electrode lead 1 and the negative electrode lead 2 are arranged in a plastic plug 4 injection mold, and the wire heads of the positive electrode lead 1 and the negative electrode lead 2 are adjusted to be parallel to each other;
step 3: the plastic plug 4 is formed by injection molding in an injection mold of the plastic plug 4, with the spiral sections of the positive and negative electrode leads 1 and 2 buried in the plastic plug 4.
In the above method, the outer coating layer 3 and the positive electrode wire 1 and the negative electrode wire 2 disposed inside the outer coating layer 3 are protected by the detonator leg wire, and a small section of the outer coating layer 3 at one end of the detonator leg wire is stripped before step 1 to expose the positive electrode wire 1 and the negative electrode wire 2.
In the above embodiment, the positive electrode lead 1 and the negative electrode lead 2 of the electronic detonator skillfully use the cylindrical limit post as the limit tool, one end of the positive electrode lead 1 and one end of the negative electrode lead 2 are alternately and equi-directionally staggered and spirally wound on the positioning rod, the positioning rod is pulled out to translate the spiral section, and then injection molding is performed to form the manufacturing method of the plastic plug 4, so that the positive electrode spiral section and the negative electrode lead 2 form a space phase twisted shape in the plastic plug 4, and the positive electrode lead 2 forms a larger space volume and a larger surface area in the plastic plug 4, thereby greatly improving the tensile resistance of the leg wire.
In the step 1, the spiral interval between the adjacent positive electrode lead 1 and negative electrode lead 2 is 2-4mm.
In a preferred embodiment, in the step 1, the positioning rod is cylindrical.
As a preferred embodiment, the diameter of the positioning rod is 5-7mm.
In the step 2, the spiral portions of the positive electrode lead 1 and the negative electrode lead 2 are shifted by a small distance, specifically, the spiral portions of the positive electrode lead 1 and the negative electrode lead 2 are shifted by 1-2mm.
As a preferred embodiment, the shape of the positioning rod is elliptical.
As a preferred embodiment, the oval long diameter of the positioning rod is 7-9mm, and the short diameter is 5-7mm.
In the above embodiment, when the shape of the positioning rod is elliptical, the positive electrode lead 1 and the negative electrode lead 2 are wound to form an elliptical spiral structure, and in step 2, the spiral portions of the positive electrode lead 1 and the negative electrode lead 2 are translated in the short diameter direction by a small distance, the translation distance is equivalent to the difference between the long diameter and the short diameter of the ellipse, so that the diameters of the translated double-spiral structure are nearly consistent, the contact surface area and the space volume between the positive electrode lead and the plastic plug 4 can be further increased, and the tensile force of the detonator leg wire is further improved.
Example 1
The manufacturing method of the electronic detonator leg wire not easy to short circuit comprises the following steps:
step 1: one end of a detonator anode lead 1 and one end of a detonator cathode lead 2 are alternately and equi-directionally staggered and spirally wound on a cylindrical positioning rod with the diameter of 6mm; the spiral interval between the adjacent positive electrode lead 1 and negative electrode lead 2 is 3mm;
step 2: the cylindrical positioning rod is pulled away, the spiral parts of the positive electrode lead 1 and the negative electrode lead 2 are translated for 2mm, so that the spiral axes of the positive electrode lead 1 and the negative electrode lead 2 are parallel, the spiral sections of the positive electrode lead 1 and the negative electrode lead 2 are arranged in a plastic plug 4 injection mold, and the wire heads of the positive electrode lead 1 and the negative electrode lead 2 are adjusted to be parallel to each other;
step 3: the plastic plug 4 is formed by injection molding in an injection mold of the plastic plug 4, with the spiral sections of the positive and negative electrode leads 1 and 2 buried in the plastic plug 4.
Under normal temperature, the foot wire of the prepared electronic detonator applies static tension of 29.6N to the foot wire for 2min, and the core wire and the insulating layer of the foot wire are free from fracture and breakage.
Example 2
The manufacturing method of the electronic detonator leg wire not easy to short circuit comprises the following steps:
step 1: one end of a detonator anode lead 1 and one end of a detonator cathode lead 2 are alternately and equispaced and alternately spirally wound on an elliptical positioning rod, wherein the elliptical long diameter of the positioning rod is 8mm, and the short diameter of the positioning rod is 6mm; the spiral interval between the adjacent positive electrode lead 1 and negative electrode lead 2 is 3mm;
step 2: the cylindrical positioning rod is pulled away, the spiral parts of the positive electrode lead 1 and the negative electrode lead 2 are translated for 2mm, so that the spiral axes of the positive electrode lead 1 and the negative electrode lead 2 are parallel, the spiral sections of the positive electrode lead 1 and the negative electrode lead 2 are arranged in a plastic plug 4 injection mold, and the wire heads of the positive electrode lead 1 and the negative electrode lead 2 are adjusted to be parallel to each other;
step 3: the plastic plug 4 is formed by injection molding in an injection mold of the plastic plug 4, with the spiral sections of the positive and negative electrode leads 1 and 2 buried in the plastic plug 4.
Under normal temperature, the foot wire of the prepared electronic detonator applies static tension of 29.6N to the foot wire for 2min, and the core wire and the insulating layer of the foot wire are free from fracture and breakage.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (8)
1. The manufacturing method of the electronic detonator leg wire not easy to short circuit is characterized by comprising the following steps of:
step 1: alternately and equi-spacing and equi-directionally staggered spiral-winding one end of a positive lead and one end of a negative lead of the detonator on the positioning rod;
step 2: the cylindrical positioning rod is pulled away, the spiral parts of the positive electrode lead and the negative electrode lead are translated for a small distance, so that the spiral axes of the positive electrode lead and the negative electrode lead are parallel, the spiral sections of the positive electrode lead and the negative electrode lead are arranged in a plastic plug injection mold, and the wire heads of the positive electrode lead and the negative electrode lead are adjusted to be parallel to each other;
step 3: and (3) injection molding is performed in a plastic plug injection mold to form a plastic plug, so that the spiral sections of the positive electrode lead and the negative electrode lead are buried in the plastic plug.
2. The method for manufacturing the leg wire of the electronic detonator which is not easy to be short-circuited according to claim 1, wherein in the step 1, the spiral interval between the adjacent positive electrode lead and negative electrode lead is 2-4mm.
3. The method for manufacturing an electronic detonator leg wire which is not easy to be shorted as claimed in claim 1 wherein in the step 1, the positioning rod is in the shape of a cylinder.
4. The method for manufacturing the electronic detonator leg wire which is not easy to be short-circuited according to claim 3, wherein the diameter of the positioning rod is 5-7mm.
5. The method for manufacturing the electronic detonator leg wire which is not easy to be short-circuited according to claim 1, wherein in the step 2, the spiral parts of the positive electrode wire and the negative electrode wire are shifted by a small distance, specifically, the spiral parts of the positive electrode wire and the negative electrode wire are shifted by 1-2mm.
6. The method for manufacturing an electronic detonator leg wire which is not easy to be shorted as claimed in claim 1 wherein the shape of the positioning rod is elliptical.
7. The method for manufacturing the electronic detonator leg wire which is not easy to be short-circuited according to claim 6, wherein the oval long diameter of the positioning rod is 7-9mm, and the short diameter is 5-7mm.
8. An electronic detonator leg wire made by the method for making an electronic detonator leg wire which is not prone to short circuit of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410002021.0A CN117799111B (en) | 2024-01-02 | 2024-01-02 | Method for manufacturing electronic detonator leg wire not prone to short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410002021.0A CN117799111B (en) | 2024-01-02 | 2024-01-02 | Method for manufacturing electronic detonator leg wire not prone to short circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117799111A true CN117799111A (en) | 2024-04-02 |
| CN117799111B CN117799111B (en) | 2025-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410002021.0A Active CN117799111B (en) | 2024-01-02 | 2024-01-02 | Method for manufacturing electronic detonator leg wire not prone to short circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN117799111B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118662745A (en) * | 2024-07-24 | 2024-09-20 | 上海应手医疗器械有限公司 | Intraoperative monitoring tracheal cannula |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR601273A (en) * | 1925-07-23 | 1926-02-26 | Davey Bickford Ets | Method of presentation of electric primers |
| AT193789B (en) * | 1956-07-11 | 1957-12-10 | Poudreries Reunies De Belgique Societe Anonyme | |
| US4331079A (en) * | 1978-06-05 | 1982-05-25 | Dynamit Nobel Aktiengesellschaft | Process for joining a plug and fuze wires for electrical detonators |
| CN2701864Y (en) * | 2003-05-23 | 2005-05-25 | 柳昶明 | Injection moulding handle winding machine for electric detonator loading wire (multiple shot) |
| CN201122090Y (en) * | 2007-11-26 | 2008-09-24 | 比亚迪股份有限公司 | electric ignition tube |
| CN201387296Y (en) * | 2009-02-26 | 2010-01-20 | 郭建孝 | Electricity-conducting lead wire of electric detonator |
| CN215114251U (en) * | 2021-05-08 | 2021-12-10 | 福建海峡科化股份有限公司 | Electronic detonator leg wire for preventing core wire short circuit |
| CN217844938U (en) * | 2022-05-30 | 2022-11-18 | 湖北正屹电子有限公司 | Electronic detonator leg wire for preventing core wire short circuit |
| CN221781384U (en) * | 2024-01-02 | 2024-09-27 | 福建海峡科化股份有限公司 | Electronic detonator leg wire |
-
2024
- 2024-01-02 CN CN202410002021.0A patent/CN117799111B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR601273A (en) * | 1925-07-23 | 1926-02-26 | Davey Bickford Ets | Method of presentation of electric primers |
| AT193789B (en) * | 1956-07-11 | 1957-12-10 | Poudreries Reunies De Belgique Societe Anonyme | |
| US4331079A (en) * | 1978-06-05 | 1982-05-25 | Dynamit Nobel Aktiengesellschaft | Process for joining a plug and fuze wires for electrical detonators |
| CN2701864Y (en) * | 2003-05-23 | 2005-05-25 | 柳昶明 | Injection moulding handle winding machine for electric detonator loading wire (multiple shot) |
| CN201122090Y (en) * | 2007-11-26 | 2008-09-24 | 比亚迪股份有限公司 | electric ignition tube |
| CN201387296Y (en) * | 2009-02-26 | 2010-01-20 | 郭建孝 | Electricity-conducting lead wire of electric detonator |
| CN215114251U (en) * | 2021-05-08 | 2021-12-10 | 福建海峡科化股份有限公司 | Electronic detonator leg wire for preventing core wire short circuit |
| CN217844938U (en) * | 2022-05-30 | 2022-11-18 | 湖北正屹电子有限公司 | Electronic detonator leg wire for preventing core wire short circuit |
| CN221781384U (en) * | 2024-01-02 | 2024-09-27 | 福建海峡科化股份有限公司 | Electronic detonator leg wire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118662745A (en) * | 2024-07-24 | 2024-09-20 | 上海应手医疗器械有限公司 | Intraoperative monitoring tracheal cannula |
| CN118662745B (en) * | 2024-07-24 | 2025-02-18 | 上海应手医疗器械有限公司 | Intraoperative monitoring tracheal cannula |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117799111B (en) | 2025-10-28 |
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