阅读说明：本技术 可设定高精度安全型延时点火装置及加工方法 (Settable high-precision safety type delay ignition device and processing method ) 是由 唐琴 王明 袁长宏 曾光伟 魏婧姝 周艳坤 于 2019-11-08 设计创作，主要内容包括：本发明公开了一种可设定高精度安全型延时点火装置及加工方法,装置结构包括管壳,所述管壳顶部敞口,壳体内从上到下依次设有注塑元件、延时模块、点火药头、加强帽、主点火药,所述注塑元件包括注塑塞和两引线,所述延时模块为电子延时模块,点火药头外涂覆有一硝基磁漆防潮层,主点火药与壳体底部间设有密封垫。本发明利用电子延时模块中的处理器进行控制发火时间,以使产品精准延时,其延期时间在50s以内的延时精度可控制在名义延期时间的±5%以内；该方案将主点火药加入加强帽内压制后,使产品在可靠点火的同时,能经受75g加速度及高频振动的力学试验,在保证产品延精度的同时,提高产品的点火性能。(The invention discloses a settable high-precision safety type delay ignition device and a processing method thereof, wherein the device structure comprises a pipe shell, the top of the pipe shell is open, an injection molding element, a delay module, an ignition powder head, a reinforcing cap and main ignition powder are sequentially arranged in the pipe shell from top to bottom, the injection molding element comprises an injection molding plug and two leads, the delay module is an electronic delay module, a nitro enamel moisture-proof layer is coated outside the ignition powder head, and a sealing gasket is arranged between the main ignition powder and the bottom of the pipe shell. The invention utilizes the processor in the electronic delay module to control the ignition time, so that the product is accurately delayed, and the delay precision of the delay time within 50s can be controlled within +/-5% of the nominal delay time; according to the scheme, after the main ignition powder is added into the reinforcing cap for pressing, the product can withstand mechanical tests of 75g acceleration and high-frequency vibration while being reliably ignited, and the ignition performance of the product is improved while the product extension precision is ensured.)

1. The utility model provides a can set for high accuracy safety type time delay ignition, includes the tube, the tube top is uncovered, from the top down is equipped with injection moulding component, time delay module, ignition explosive head, enhancement cap, main ignition powder in proper order in the casing, the injection moulding component is including moulding plastics stopper and two lead wires, its characterized in that:

the electronic delay module is an electronic delay module, the electronic delay module corresponds to an initiator matched with the electronic delay module, the electronic delay module comprises a PCB, and a processor, a capacitance delay circuit and a chip resistor are integrated on the PCB, wherein a product ID number and rocket information are stored in the processor, a bonding pad for connecting two leads is arranged at the top of the PCB and is welded with the two leads through the bonding pad, the bottom of the PCB is connected with an ignition powder head through the chip resistor, and a nitro enamel moisture-proof layer is coated outside the ignition powder head;

the detonator is used for confirming the product ID number and rocket information of the processor and sending a command to the processor;

the processor is used for receiving a command of the detonator and charging the capacitor delay circuit;

the capacitor delay circuit is used for discharging to the chip resistor to ignite the ignition charge head;

and a sealing gasket is arranged between the main ignition powder and the bottom of the shell.

2. The settable high-precision safety type time-delay ignition device according to claim 1, wherein: the sealing gasket is made of celluloid sheets, and the tube shell and the reinforcing cap are made of aluminum.

3. The settable high-precision safety type time-delay ignition device according to claim 1, wherein: the injection molding element is modified PVC.

4. The settable high-precision safety type time-delay ignition device according to claim 1, wherein: the main ignition charge is tungsten ignition charge.

5. The processing method of the settable high-precision safety type time delay ignition device according to claim 1, wherein the processing method comprises the following steps: comprises the following steps of (a) carrying out,

(1) preparing a tube shell, an injection molding element, an electronic delay module, an ignition explosive head, a reinforcing cap, main ignition powder and an exploder, wherein the electronic delay module comprises a chip, and a product ID number and rocket information are arranged in the chip;

(2) sticking a sealing gasket at the bottom of the pipe shell, sequentially filling main ignition powder and a reinforcing cap in the pipe shell, and compacting the main ignition powder under the pressure of 300-350 kg;

(3) welding two leads of the injection molding element on bonding pads of the electronic delay module respectively, coating an ignition powder head on the surface of the chip resistor, and uniformly coating a nitro enamel moisture-proof layer on the ignition powder head;

(4) and (4) placing the electronic delay module obtained in the step (3) into the tube shell, and fixing the injection molding plug and the tube shell bayonet.

6. The processing method of the settable high-precision safety type time delay ignition device according to claim 5, wherein the processing method comprises the following steps: the ignition explosive head comprises the following components in parts by weight:

trinitroresorcinol lead and nitrocotton = 10 g: 0.5g

Nitrocotton and butyl acetate =0.5g to (20-25) mL.

7. The processing method of the settable high-precision safety type time delay ignition device according to claim 5, wherein the processing method comprises the following steps: the main ignition powder is tungsten ignition powder, and the formula and the mass ratio of each component are as follows:

tungsten powder, barium chromate, potassium perchlorate and silicon powder = 50: 39: 11: 5.

Technical Field

The invention relates to a civil detonator and a processing method thereof, in particular to a settable high-precision safe delay ignition device and a processing method thereof.

Background

The artificial influence weather is based on the research result of cloud and fog precipitation physics, in particular to the artificial rainfall test taking accumulated clouds as the object. At present, hail suppression and rain enhancement operation tools at home and abroad are subjected to different development periods from earth cannons, earth rockets to antiaircraft cannons, novel rockets and the like. The hail suppression and rain enhancement operation of earth cannons and antiaircraft cannons mainly converts chemical heat energy into kinetic energy through one-time work of an explosive device in a cannonball, overcomes the gravity effect and emits substances influencing the weather into the atmosphere, and often cannot achieve the expected effect due to the fact that the shooting height of the cannonball is low; the soil rocket and the novel rocket adopt a rocket launching mechanism, the rocket is to be launched to a preset high point through the delay action of the delay ignition device, and the delay ignition device acts to enable the rocket to continuously act for a certain time after the rocket completes the parachute opening function, so that substances influencing weather can be well scattered in a preset atmosphere, and a good hail-preventing and rain-increasing effect is achieved. However, the problems of high misfire rate and misfire rate of the delay fuse, short delay, poor delay precision and the like generally exist in the prior art.

Along with the specification and development of hail suppression and rain enhancement operation, the requirements on hail suppression and rain enhancement operation tools are higher and higher. The development of hail suppression and rain enhancement operation technology will develop towards high precision, safety and high action performance, so that corresponding requirements are also provided for a key action device of the technology, namely a delay ignition device: high precision, long time delay and safety. The project takes the research and application of a settable high-precision safety type delay ignition device as a subject, mainly solves the problems of high delay fuze misfire rate and misfire rate, short delay, poor delay precision and the like of the current hail-suppression and rain-increasing rocket, and simultaneously can effectively deal with the safety risks caused by robbing or losing of operation equipment such as the rocket, the antiaircraft and the like and ammunition when the product is used in the rocket and the antiaircraft. Meanwhile, the application of delayed initiating explosive devices in multiple fields is promoted, and the safety, accuracy and environmental adaptability of equipment are improved.

At present, domestic delay initiating explosive devices are basically powder delay, the powder delay time is short, the delay precision is poor, the reliability is low, and the misfire and ignition interruption rate of products is high.

Disclosure of Invention

The invention aims to solve the problems, aims to solve the problems of high misfire rate and misfire rate, short delay, poor delay precision and the like of the existing hail-suppression and rain-increasing rocket adopting the initiating time delay fuze, has the functions of high precision, long delay time, high action performance, field setting of the delay time, and prevention of safety risks caused by robbery or loss, and can set a high-precision safety type delay ignition device and a processing method.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a settable high-precision safe type delay ignition device comprises a pipe shell, wherein the top of the pipe shell is open, an injection molding element, a delay module, an ignition explosive head, a reinforcing cap and main ignition powder are sequentially arranged in the pipe shell from top to bottom, and the injection molding element comprises an injection molding plug and two leads;

the electronic delay module is an electronic delay module, the electronic delay module corresponds to an initiator matched with the electronic delay module, the electronic delay module comprises a PCB, and a processor, a capacitance delay circuit and a chip resistor are integrated on the PCB, wherein a product ID number and rocket information are stored in the processor, a bonding pad for connecting two leads is arranged at the top of the PCB and is welded with the two leads through the bonding pad, the bottom of the PCB is connected with an ignition powder head through the chip resistor, and a nitro enamel moisture-proof layer is coated outside the ignition powder head;

the detonator is used for confirming the product ID number and rocket information of the processor and sending a command to the processor;

the processor is used for receiving a command of the detonator and charging the capacitor delay circuit;

the capacitor delay circuit is used for discharging to the chip resistor to ignite the ignition charge head;

and a sealing gasket is arranged between the main ignition powder and the bottom of the shell.

Preferably, the method comprises the following steps: the sealing gasket is made of celluloid sheets, and the tube shell and the reinforcing cap are made of aluminum.

Preferably, the method comprises the following steps: the injection molding element is modified PVC.

Preferably, the method comprises the following steps: the main ignition charge is tungsten ignition charge.

A processing method of a settable high-precision safety type delay ignition device comprises the following steps,

(1) preparing a tube shell, an injection molding element, an electronic delay module, an ignition explosive head, a reinforcing cap, main ignition powder and an exploder, wherein the electronic delay module comprises a chip, and a product ID number and rocket information are arranged in the chip;

(2) sticking a sealing gasket at the bottom of the pipe shell, sequentially filling main ignition powder and a reinforcing cap in the pipe shell, and compacting the main ignition powder under the pressure of 300-350 kg;

(3) welding two leads of the injection molding element on bonding pads of the electronic delay module respectively, coating an ignition powder head on the surface of the chip resistor, and uniformly coating a nitro enamel moisture-proof layer on the ignition powder head;

(4) and (4) placing the electronic delay module obtained in the step (3) into the tube shell, and fixing the injection molding plug and the tube shell bayonet.

Preferably, the method comprises the following steps: the ignition explosive head comprises the following components in parts by weight:

trinitroresorcinol lead and nitrocotton = 10 g: 0.5g

Nitrocotton and butyl acetate =0.5g to (20-25) mL.

Preferably, the method comprises the following steps: the main ignition powder is tungsten ignition powder, and the formula and the mass ratio of each component are as follows:

tungsten powder, barium chromate, potassium perchlorate and silicon powder = 50: 39: 11: 5.

Compared with the prior art, the invention has the advantages that:

(1) the electronic time delay modules are adopted, and each electronic time delay module has an ID number, so that the uniqueness of the product can be ensured; the delay time can be set during field assembly, and the setting time is set arbitrarily within 0-50 s; and detecting and confirming the product ID number and rocket information by adopting a matched initiator, and setting delay time of each stage of the rocket. The electronic delay module can complete the function of scheduled delay time under the influence of various complex factors such as acceleration, gravity, low pressure, humidity, low oxygen, high temperature, low temperature, air friction and the like.

(2) The installation method of the main ignition powder and the reinforcing cap is improved, the main ignition powder is firstly installed, and then the reinforcing cap is placed for pressing, so that the problems of safety, misfire and the like caused by the loosening of the main ignition powder in the long-distance transportation process of the product are avoided while the fixing of the main ignition powder is ensured; by adopting the structure, the product can still keep the structural integrity and safely ignite after passing special tests such as 2000Hz high-frequency vibration, 2m drop, 75g acceleration and the like; the ignition powder adopts the special ignition powder of tungsten system, the medicament sensitivity is high, and the ignition performance is strong.

(3) The formula of the ignition charge is improved, and the reliability of the charge initiation and the release of high-energy ignition main ignition agent is ensured. In addition, the safety protection to sensitive medicaments can be met by adopting the medicament head, and the safety problem in the production process can be ensured.

(4) The product structure is more sealed, and this product bottom is pasted sealed pad, top and is adopted the stopper bayonet socket mode of moulding plastics. Because the celluloid sheet adopted by the sealing gasket is made of a waterproof inflammable material, the effect of moisture prevention can be achieved, and the ignition effect of the main ignition powder can be increased when the main ignition powder burns; the mode of the injection molding plug bayonet can safely and reliably complete due functions in various complex environments such as humid environment, low temperature environment and the like.

In conclusion, the invention has the advantages of high precision, safety, high action performance, field setting of delay time, and prevention of safety risk caused by robbery or loss, and solves the problems of delayed misfire, delay time overdue, non-adjustable delay time and the like of the prior military and civil dual-purpose firer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a structural diagram of an electronic delay module.

In the figure: 1. a pipe shell; 2. a reinforcement cap; 3. a gasket; 4. an injection molding element; 5. a main ignition charge; 6. an electronic delay module; 7. igniting the explosive head; 8. a PCB board; 9. a processor; 10. a pad; 11. a capacitive delay circuit; 12. and (4) a chip resistor.

Detailed Description

The invention will be further explained with reference to the drawings.