CN109579633B

CN109579633B - Special standard gunpowder block for image-text firework lattice structure body and preparation method thereof

Info

Publication number: CN109579633B
Application number: CN201811651799.5A
Authority: CN
Inventors: 征茂德; 陈巧云
Original assignee: Suzhou Tianweimu Firework Technology Co ltd
Current assignee: Suzhou Tianweimu Firework Technology Co ltd
Priority date: 2018-12-31
Filing date: 2018-12-31
Publication date: 2021-08-17
Anticipated expiration: 2038-12-31
Also published as: CN109579633A

Abstract

The invention discloses a special standard gunpowder block for an image-text firework lattice structure and a preparation method thereof, wherein the special standard gunpowder block comprises a standard gunpowder block, the standard gunpowder block is arranged into a cylindrical gunpowder block, and the cylindrical gunpowder block comprises a firework emitting gunpowder block and a firework display gunpowder block; the firework display powder block is a cylindrical firework display powder block prepared by mixing firework display powder burnt in the lift-off process of conventional fireworks in the industry, an organic adhesive, an ignition performance enhancer and a passivating agent; the firework propellant charge block is a cylindrical firework propellant charge block prepared by mixing firework propellant charges, an ignition performance enhancer and an organic adhesive, wherein the firework propellant charges are launched and lifted off by conventional fireworks and crackers in the industry. The standard gunpowder block provided by the invention is produced by the forming jig, so that the production efficiency is high, the production cost is low, the manufacturing process is simple and convenient, the standardized design of the gunpowder block is facilitated, the cost of the image-text fireworks is reduced, and the standard gunpowder block is suitable for wide application and popularization, so that the image-text fireworks can meet the use requirements of the public.

Description

Special standard gunpowder block for image-text firework lattice structure body and preparation method thereof

Technical Field

The invention relates to the field of image-text fireworks, in particular to a special standard gunpowder block for an image-text firework lattice structural body and a preparation method thereof.

Background

Fireworks can form colors and patterns when being set off, produce sound effects and are products with visual effects as main. Originally, fireworks are recreational products special for noble luxury and worries about luxury and luxury fighting, and the fireworks are gradually becoming festive gifts after the bright and clear and the new development of firework manufacturing technology. Every spring festival, sweet afternoon festival and other important activities need to apply fireworks to help.

The fireworks in China are various in names and varieties. Among them, the chrysanthemum is the most popular flower type. After the fireworks are injected into the upper air, the five-color continuous light-emitting agent is burnt, then the parachutes which fall with the opening are formed, the fireworks are overlapped, and the night sky is beautiful and reunited to form various beautiful patterns, so that the fireworks and the parachutes become the ornamental target of people in the full moon and fifteen afternoon festival. The cost of such a large instantaneous-vanishing firework is very high. Fireworks in counties and towns are heavyweight and moderate, so that the purpose of viewing is achieved, and the festival atmosphere is pushed to climax. The 'fire tree and honeysuckle flower' is the real photo of the landscape in no night. However, since fireworks capable of forming pictures and texts in the sky are much more expensive than ordinary fireworks on the market, there are few batches of picture and text fireworks for sale before that, and the fireworks are generally reserved by governments or enterprises.

Nowadays, along with the improvement of living standard, the entertainment requirement and the consumption eye sight of people are also continuously improved, fireworks are a boss product which lasts for thousands of years, are durable, add countless joys and joys to people, evolve for thousands of years, have various kinds of fireworks, derive a plurality of classic products, but along with the development of science and technology, the original mode is also basically developed to the top, and is difficult to be inch-fed, and cannot follow the requirements of people, so that the society urgently needs higher grade, better see and popularize, and the novel fireworks product which is consumed by people is a big-end product, in the aspect of large-scale activities such as Olympic games, people use countless fireworks group diagrams, and use a large number of personnel and a plurality of computers to simultaneously control, and generate footprint graphs in the sky, but the method needs a large amount of manpower, is high in cost, needs to be coordinately trained for many times, so that the people are difficult to copy and bear the consumption, some enterprises and individuals have made some attempts and researches on graphic fireworks, and these individuals and enterprises have: the method is characterized in that the method also applies for dozens of patents in Zhongjiang, Zhongcai, Liuyang Yueshi science and technology environment-friendly firework factories, afterculture beginners, afterfriends, Liuyang Daihu firework art firework set off group limited companies, Liuyang celebration firework culture group limited companies and the like, but the research and development ideas and technical improvements of the method still do not get rid of the original development frame and do not have major breakthroughs, the method has the problems of mass production, packaging, transportation, set off, simple image-text and the like in practical application, the method is high in cost, large in volume, inconvenient to use and difficult to apply, popularize and popularize, the key for manufacturing the image-text fireworks is the image-text lattice structure body and gunpowder blocks assembled in the image lattice structure body, the manufacturing cost, the number of points in unit area, the production efficiency and the reliability of simultaneous emission are realized, and the problems of the image lattice structure body and the gunpowder blocks are only solved, the image-text firework has the advantages of simple and practical structure, convenience in manufacturing, suitability for mass and high-efficiency production, low cost, suitability for popular use, and capability of being used only by people.

The invention patent with the application number of CN201310165469.6 is found through retrieval, and discloses a manufacturing method of a split unit adhesive type image-text firework lattice structure body, which comprises a split unit, a lattice body forming jig and a manufacturing method of a lattice structure finished body, wherein the lattice body forming jig is provided with jig plugging holes, the jig plugging holes are distributed in a lattice shape and used for being inserted into the split unit, the manufacturing method of the lattice structure finished body comprises the following steps of presetting the outline shape of the image-text firework after being set off in the step 1, manufacturing a height-limiting lantern ring according to the outline shape in the step 2, placing the lattice body forming jig in the step 3, inserting the split unit and a process plug into the lattice body forming jig in the step 4, sleeving the height-limiting lantern ring in the step 5, compacting by the lattice body forming jig, applying adhesive in the step 6, curing and the like. The method is simple to implement and convenient to manufacture, simplifies the complex lattice structure, is suitable for ultra-large batch production, can greatly reduce the cost of the image-text fireworks, and is the key for the image-text fireworks to enter thousands of households at low cost.

The invention patent with the application number of CN201310165372.5 discloses an assembling method of a unit splicing type image-text firework lattice structure completion body, which comprises an assembling method of splicing units and lattice structure completion bodies, wherein the splicing units are provided with splicing structures which can be connected mutually, the assembling method of the lattice structure completion bodies comprises the following steps of designing and manufacturing a splicing backup plate jig in step 1, abutting a first splicing unit against one corner of the splicing backup plate jig in step 2, respectively splicing a second splicing unit and a third splicing unit on two sides of the first splicing unit in step 3, splicing a new splicing unit on one side, which is not spliced, of each splicing unit in step 4 until the space in the splicing backup plate jig is filled, and flattening and compacting the lattice structure in step 5. The method is simple to implement and convenient to manufacture, the simple splicing units are combined into the complex lattice structure body through splicing, the method can be produced in ultra-large batch, the cost of the image-text fireworks is greatly reduced, and the method is the key that the image-text fireworks can be put into thousands of households at low cost.

The invention patent with the application number of CN201310165467.7 discloses a picture and text firework with a part of preset parts and self-dyed by users and a manufacturing method thereof, and the picture and text firework comprises a picture and text firework carrier, a dyeing article and a method for dyeing and manufacturing the picture and text firework, wherein the picture and text firework carrier is provided with an ascending rocket, a dot matrix structure body, preset picture and text display fireworks, fireworks primary color powder, simultaneous propellant powder and a simultaneous ignition device, the ascending rocket is connected with the dot matrix structure body, and the simultaneous propellant powder, the preset picture and text display fireworks and the fireworks primary color powder are filled in the dot matrix structure body; the dyeing article comprises a dyeing salt solution and a dyeing device, and the method for producing the pictures and texts by dyeing comprises the steps of designing a picture and text sample draft, applying the dyeing salt solution, carrying out permeation coloring on fireworks primary color medicines, removing liquid components, fully drying and the like. The displayed graph part of the firework setting off device is preset, and part of the graph is freely played by the user and is combined randomly, so that the user can experience the fun of participation of the user, the sentiment can be directly expressed, the implementation is simple, the cost is low, and the firework setting off device is suitable for mass production.

The invention with the application number of CN201610139372.1 discloses a firework structure, which comprises an outer box, wherein a ten-smoke-discharging firework setting-off barrel is arranged in the outer box, a main firework ignition fuse is also arranged outside the outer box, the firework setting-off barrel comprises an outer barrel and an inner barrel arranged in the outer barrel, bottom mud is arranged at the bottom of the outer barrel, a black gunpowder layer is arranged above the bottom mud, one end of the black gunpowder layer is connected with the ignition fuse of the setting-off barrel, a fire transfer fuse is arranged at the other end of the black gunpowder layer, a hole penetrating paperboard is arranged on the black gunpowder layer, the inner barrel is arranged on the hole penetrating paperboard, a tail gunpowder layer is arranged at the bottom of the inner barrel above the hole penetrating paperboard, a mud isolating layer is arranged above the tail gunpowder layer, explosive is arranged in the inner barrel above the mud isolating layer, a plurality of bright beads are uniformly arranged in the explosive, and a fire passing fuse is vertically arranged in the inner barrel, the fire-passing fuse is communicated with the explosive and the black fire powder layer. The invention has the advantages of safe setting off and reasonable arrangement.

The invention patent with the application number of CN201310698360.9 discloses a novel combined firework, which comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is arranged in the outer cylinder; the two ends of the outer cylinder are respectively sealed by sealing layers, a gunpowder layer is arranged on the sealing layer at one end in the outer cylinder, a fire passing layer is arranged on the gunpowder layer, and an inner cylinder is arranged between the fire passing layer and the sealing layer at the other end; and an eyelet is arranged at the position of the outer cylinder between the gunpowder layer and the sealing layer, and an ignition lead is inserted into the eyelet. Compared with the prior art, the invention has the following advantages: 1. the flower bunch is layered clearly; 2. unique creation and novel effect.

The invention patent with the application number of CN201110073831.8 discloses a modularized bract-opening medicine for a display shell and a preparation method thereof, the bract-opening medicine contains a nitrocotton component, the interior of the bract-opening medicine is provided with a large number of tiny pores, the shape of the bract-opening medicine is a block, and the size and the shape of the bract-opening medicine are determined according to the diameter and the shape of the shell of the display shell and the burning shape required to be achieved. The preparation method of the modularized bract-opening powder for the display shell comprises the steps of firstly preparing granular microporous firework powder, and then bonding and forming the granular microporous firework powder to prepare a powder block matched with a shell of the display shell. The process of the bonding and molding of the module medicine comprises the following steps: mixing the adhesive, the ignition performance enhancer and the granular microporous firework powder, preparing the mixed material into a medicine block with a specific shape, and finally drying. The modularized bud-opening powder can solve the problems of insufficient combustion of the bud-opening powder or residual powder particles, improve the firing rate of bright beads, greatly reduce smoke generated in the bud-opening process and improve the process safety of the firework product manufacturing process.

The invention patent with the publication number of CN103234394A discloses a method for manufacturing partitioned independent powder charging post-dyeing image-text fireworks, which comprises an image-text firework structure and a post-dyeing image-text firework manufacturing method, wherein the image-text firework structure comprises a dot matrix structure body, primary fireworks color powder is filled in the dot matrix structure body and is connected with a simultaneous launching device, the simultaneous launching device is connected with a simultaneous ignition bin, and simultaneous ignition powder is filled in the simultaneous ignition bin and is connected with an ascending rocket; the manufacturing method of the post-dyeing image-text firework comprises a dyeing salt solution, a dyeing device and a dyeing method, wherein the dyeing method comprises the steps of designing an image-text sample draft, contacting the dyeing salt solution with a firework primary color powder by using the dyeing device, enabling the dyeing salt solution to permeate into the firework primary color powder according to the rule limitation and be mixed into a whole, removing liquid components, fully drying, and displaying the required color of the original firework primary color powder after ignition. The invention has simple implementation and convenient manufacture, does not need to overstock the stock, can dye before leaving a factory, and can also lead a user to freely combine and dye after purchasing.

The patent with the publication number of CN103234396A discloses a method for manufacturing image-text fireworks with a part of preset parts for users to dye by themselves, which comprises an image-text firework carrier, a dyeing article and a method for manufacturing the image-text fireworks, wherein the image-text firework carrier is provided with an ascending rocket, a dot matrix structure body, preset image-text display fireworks, fireworks primary color powder, simultaneous propellant powder and a simultaneous ignition device, the ascending rocket is connected with the dot matrix structure body, and the simultaneous propellant powder, the preset image-text display fireworks and the fireworks primary color powder are filled in the dot matrix structure body; the dyeing article comprises a dyeing salt solution and a dyeing device, and the method for producing the pictures and texts by dyeing comprises the steps of designing a picture and text sample draft, applying the dyeing salt solution, carrying out permeation coloring on fireworks primary color medicines, removing liquid components, fully drying and the like. The displayed graph part of the firework setting off device is preset, and part of the graph is freely played by the user and is combined randomly, so that the user can experience the fun of participation of the user, the sentiment can be directly expressed, the implementation is simple, the cost is low, and the firework setting off device is suitable for mass production.

The patent of bulletin number for CN201720529917.X discloses a modular picture and text fireworks dot matrix structure, including dot matrix structure completion body, dot matrix structure completion body includes dot matrix components of a whole that can function independently and dot matrix fixed body, dot matrix components of a whole that can function independently is fixed by the dot matrix fixed body, and is a plurality of connect through the hasp between the dot matrix components of a whole that can function independently, the dot matrix components of a whole that can function independently includes first dot matrix components of a whole that can function independently and second dot matrix components of a whole that can function independently, second dot matrix components of a whole that can function independently is located the side of the first dot matrix components of a whole that can function independently of a plurality of combinations, first dot matrix components of a whole that can function independently is provided with the vertical emission hole, second dot matrix components of a whole that can function independently is provided with the oblique emission hole, vertical emission hole and/or oblique emission hole are dot matrix form closely arranged, the interior fireworks propellant powder and the fireworks display powder of vertical emission hole and/or oblique emission hole. The patent is simple to implement and convenient to manufacture, the complex lattice structure is simplified, the method is suitable for ultra-large batch production, the cost of the image-text fireworks can be greatly reduced, and the method is a key for the image-text fireworks to enter thousands of households at low cost.

In summary, it is particularly important to produce the gunpowder block capable of satisfying the lattice structure of the image-text fireworks, and the gunpowder block becomes one of the key technologies capable of satisfying the public use.

Disclosure of Invention

The standard gunpowder blocks are produced by a forming jig in a unified way, so that the requirement of mechanized integrated production is met, the medicine proportion among gunpowder can be ensured, the shape, the size and the quality of the produced gunpowder blocks are in a controllable range, and the consistency of firing of the image-text firework lattice structure is facilitated.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

a special standard gunpowder block for an image-text firework lattice structure body and a preparation method thereof comprise a standard gunpowder block and a preparation method of the standard gunpowder block, wherein the standard gunpowder block is arranged into a cylindrical gunpowder block, and the cylindrical gunpowder block comprises a firework emitting gunpowder block and a firework displaying gunpowder block; the firework display powder block is a cylindrical firework display powder block prepared by mixing firework display powder burnt in the lift-off process of conventional fireworks in the industry, an organic adhesive, an ignition performance enhancer and a passivating agent; the firework propellant charge block is a cylindrical firework propellant charge block prepared by mixing firework propellant charges, an ignition performance enhancer and an organic adhesive, wherein the firework propellant charges are launched and lifted off by conventional fireworks and crackers in the industry; the preparation method of the standard firework powder block of the dot matrix emitter comprises the following steps:

step 1: selecting conventional powdered firework propellant powder and firework display powder for later use;

step 2: manufacturing the powdery firework propellant into granular firework propellant with consistent shape, size and quality by using a conventional gunpowder granulator;

and step 3: mixing and uniformly stirring the organic adhesive and the ignition performance enhancer to obtain a first adhesive used by the granular firework propellant;

and 4, step 4: sequentially adding the granular firework propellant and the first adhesive into a conventional gunpowder stirrer for mixing and stirring to obtain the granular firework propellant with the first adhesive for later use;

and 5: mixing and stirring the organic adhesive, the ignition performance enhancer and the passivator uniformly to obtain a second adhesive used by the firework display powder;

step 6: sequentially adding the powdery firework display powder and the second adhesive into a conventional powder stirrer for mixing and stirring, so that the stirred firework display powder is flocculent for later use; wherein, the second adhesive is added into the conventional gunpowder stirrer for multiple times;

and 7: preparing a forming jig of standard gunpowder blocks;

and 8: subpackaging the granular firework propellant with the first adhesive obtained in the step (4) into a forming cavity on a forming jig according to the quality of a standard specification; and compressing the granular fireworks propellant powder in the molding cavity by using a molding pressure rod;

and step 9: subpackaging the flocculent firework display powder obtained in the step 6 on granular firework emitting powder in a forming cavity according to the quality of the standard specification; compacting the firework display powder in the molding cavity by using a molding pressure rod, and compacting the firework display powder on the firework emitting powder;

step 10: and (3) taking out the firework emitting powder and the firework display powder which are tightly pressed together in the forming cavity by using an ejector rod on the forming jig, and drying to obtain a cylindrical standard firework emitting powder block and a cylindrical firework display powder block which are bonded together.

Preferably, the percentage of the firework display powder, the organic binder, the ignition quality enhancer and the passivating agent is set to 80-90%, the percentage of the organic binder is set to 10-15%, the percentage of the ignition quality enhancer is set to 0.1-2% and the percentage of the passivating agent is set to 1-5%. Wherein the ignition performance enhancer is helpful for ignition of the molded firework display explosive block; the passivating agent helps to slow down the burning of the fireworks display piece.

Preferably, the percentages of the pyrotechnic composition, the ignition quality enhancer, and the organic binder are set to 85-95% of the pyrotechnic composition, 0.5-5% of the ignition quality enhancer, and 5-15% of the organic binder. By adopting the technical scheme, the ignition performance enhancer is added to facilitate the ignition of the firework emission explosive block.

Preferably, the particle size of the granular firework propellant prepared in the step 2 is set to be spherical or columnar particles with the particle size of 2-3 mm; the packing density of the spherical or columnar particles in the firework propellant block is 0.1g/cm3-0.5g/cm3, the surface and the inner part of the firework propellant block are provided with pores, and the pore diameter of the pores is set to be 0.1-0.5 mm.

Preferably, the forming jig in the step 7 comprises a bottom plate, a forming plate and a pressing plate, wherein a plurality of forming cavities are formed in the forming plate, an ejector rod is arranged in each forming cavity and connected with the bottom plate, and a plurality of forming pressing rods corresponding to the forming cavities are arranged on the pressing plate; wherein the forming jig is made of antistatic ceramics. By adopting the technical scheme, the forming jig is used for producing the gunpowder blocks in batches, so that the medicine proportioning among gunpowder can be ensured, and the shape, size and quality of the gunpowder blocks can be ensured within a controllable range, thereby being beneficial to the uniform emission and combustion of the gunpowder blocks.

Preferably, the firework display powder in the step 9 is slightly extruded into the pores between the firework propellant powder particles at the side connected with the firework propellant powder during compaction, so that the firework display powder and the firework propellant powder are bonded together after being bonded or dried.

Preferably, the drying in the step 10 is performed by circulating drying by using hot air with the temperature not exceeding 38 ℃; the drying time is not less than 8 hours.

Preferably, the percentage of the cylindrical firework emitting explosive blocks and the firework display explosive blocks in the step 10 is set to 75-85% of the firework emitting explosive blocks and 15-25% of the firework display explosive blocks; wherein, the upper tolerance of the standard specification parameter error of the shape, the size and the quality of the standard fire explosive block in the same batch is 500 percent, and the lower tolerance is 30 percent. Wherein, the upper tolerance of 500 percent refers to the shape, size and quality of a plurality of gunpowder blocks which are stuck together during drying, and the gunpowder blocks need to be separated when being installed in the actual image-text fireworks.

Preferably, the molding cavity is provided with a demolding angle, and the roughness of the surface of the molding cavity is equal to or less than 0.8 um. By adopting the technical scheme, the gunpowder demoulding in the forming cavity is facilitated.

Preferably, the organic binder comprises an aqueous solution of a water-soluble polymer binder or a sol or emulsion containing nitrocotton; the passivator comprises one of camphor, carbanilide, phthalate, dinitrotoluene, nitrodiphenylamine and resorcinol; the ignition performance enhancer comprises an emulsion of an olefin or ketone solvent containing at least one of sodium nitrate, potassium nitrate, barium nitrate, strontium nitrate, sodium perchlorate, potassium perchlorate and carbon particles; the firework display powder is prepared by mixing sulfur powder, potassium nitrate, charcoal powder and inorganic metal salt or metal powder; the metal element comprises one of barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, lead, rubidium, antimony, strontium, thallium and zinc.

Preferably, the powder block in the step 10 is rolled with a layer of antistatic graphite powder on the outer surface after being dried, and the technical scheme is beneficial to storage, transportation and installation of the powder block.

Preferably, the pressure of the forming pressure rod used in the forming cavity is not more than 5 MPa.

The invention has the beneficial effects that:

1. the standard gunpowder block is formed by integrally forming the firework emission gunpowder block and the firework display gunpowder block, so that the standard gunpowder block is firm in bonding and difficult to separate, and the ignition performance enhancer and the passivating agent added in the standard gunpowder block are beneficial to ignition of the firework emission gunpowder block and reduction of the setting-off speed of the firework display gunpowder block;

2. the standard gunpowder blocks are produced and manufactured by the forming jig in a unified way, so that the requirement of mechanical integrated production is met, the medicine proportion among gunpowder can be ensured, and the shape, size and quality of the produced gunpowder blocks are in a controllable range, so that the consistency of firing of the image-text firework lattice structure body is facilitated;

3. the standard gunpowder block is produced by the forming jig, so that the production efficiency is high, the production cost is low, the manufacturing process is simple and convenient, the standardized design of the gunpowder block is facilitated, the cost of image-text fireworks is reduced, and the standard gunpowder block is suitable for wide application and popularization, so that the image-text fireworks can meet the use requirements of the public;

4. the standard gunpowder block adopts the columnar blocky gunpowder block, so that the use safety and the transportation safety of the standard gunpowder block are improved, and the process safety of the manufacturing process is improved.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic diagram of a process for preparing a standard gunpowder block according to the present invention;

FIG. 2 is a schematic view of a modular explosive block according to the present invention;

FIG. 3 is a schematic structural view of a molding jig according to the present invention;

FIG. 4 is a schematic view of the firework propellant being dispensed into a forming cavity in accordance with the present invention;

FIG. 5 is a schematic view of a firework propellant in a pressing forming cavity of a forming pressure rod according to the present invention;

FIG. 6 is a schematic view of the pyrotechnic composition of the present invention dispensed into a molding cavity;

FIG. 7 is a schematic view of a firework displaying powder in a pressing forming cavity of a forming pressure rod according to the present invention;

FIG. 8 is a schematic diagram of the gunpowder in the ejector pin ejection molding cavity according to the present invention;

FIG. 9 is a schematic view of a first molding press bar with a ball snap in accordance with the present invention;

fig. 10 is a schematic diagram of the gunpowder block formed by the firework emitting gunpowder block and the firework display gunpowder block formed by the first forming compression rod according to the invention.

The reference numbers in the figures illustrate: the firework powder injection molding machine comprises a standard firework powder block 1, a firework powder emission block 2, a firework powder display block 3, a molding jig 4, a molding cavity 401, a molding pressing rod 402, a top rod 403, a bottom plate 404, a molding plate 405, a pressing plate 406, a guide rod 407, a sleeve 408, a base plate 409, a first molding pressing rod 410 and a spherical buckle 411.

Detailed Description

The invention is further described with reference to the accompanying drawings in which:

referring to fig. 1 to 8, the standard gunpowder block special for the image-text firework lattice structure body and the preparation method thereof comprise a standard gunpowder block 1 and a preparation method of the standard gunpowder block 1, wherein the standard gunpowder block 1 is arranged into a cylindrical gunpowder block, and the cylindrical gunpowder block comprises a firework emitting gunpowder block 2 and a firework display gunpowder block 3; the firework display powder block 3 is a cylindrical firework display powder block 3 prepared by mixing firework display powder for lift-off combustion of conventional fireworks in the industry, an organic adhesive, an ignition performance enhancer and a passivating agent; the firework launching charge block 2 is a cylindrical firework launching charge block 2 prepared by mixing firework launching charges launched and lifted from the conventional fireworks and crackers in the industry, an ignition performance enhancer and an organic adhesive; the preparation method of the standard firework powder block 1 of the dot matrix emitter comprises the following steps:

and 7: preparing a forming jig 4 of the standard gunpowder block 1; as shown in fig. 3;

and 8: subpackaging the granular firework propellant with the first adhesive obtained in the step (4) into a forming cavity 401 on a forming jig (4) according to the quality of a standard specification; and the forming pressure rod 402 is used for pressing the granular fireworks propellant powder in the forming cavity 401; as shown in fig. 4 and 5;

and step 9: subpackaging the flocculent firework display powder obtained in the step 6 on granular firework emitting powder in the forming cavity 401 according to the quality of the standard specification; the firework display powder in the molding cavity 401 is compressed by using the molding press rod 402, and the firework display powder is compressed on the firework emitting powder; as shown in fig. 6 and 7;

step 10: taking out the firework propellant powder and the firework display powder which are tightly pressed together in the molding cavity 401 by using the ejector rod 403 on the molding jig 4, and drying to obtain a cylindrical standard firework propellant powder block 1 which is formed by bonding a cylindrical firework propellant powder block 2 and a cylindrical firework display powder block 3 together; as shown in fig. 8 and 2.

Preferably, the percentage of the firework display powder, the organic binder, the ignition quality enhancer and the passivating agent is set to 80-90%, the percentage of the organic binder is set to 10-15%, the percentage of the ignition quality enhancer is set to 0.1-2% and the percentage of the passivating agent is set to 1-5%. Wherein the ignition performance enhancer is helpful for the ignition of the molded firework display explosive block 3; the deactivant helps to slow down the combustion of the fireworks display block 3.

Preferably, the percentages of the pyrotechnic composition, the ignition quality enhancer, and the organic binder are set to 85-95% of the pyrotechnic composition, 0.5-5% of the ignition quality enhancer, and 5-15% of the organic binder. By adopting the technical scheme, the ignition performance enhancer is added to facilitate the ignition of the firework emission explosive block 2.

Preferably, the particle size of the granular firework propellant prepared in the step 2 is set to be spherical or columnar particles with the particle size of 2-3 mm; the packing density of the spherical or columnar particles in the firework explosive block 2 is 0.1g/cm3-0.5g/cm3, the surface and the inner part are provided with pores, and the pore diameter of the pores is set to be 0.1-0.5 mm.

Preferably, the molding jig 4 in the step 7 comprises a bottom plate 404, a molding plate 405 and a pressing plate 406, wherein a plurality of molding cavities 401 are arranged on the molding plate 405, a push rod 403 arranged in each molding cavity 401 is connected with the bottom plate 404, and a plurality of molding press rods 402 corresponding to the molding cavities 401 are arranged on the pressing plate 406; wherein the forming jig 4 is made of antistatic ceramics. By adopting the technical scheme, the forming jig 4 is used for producing the gunpowder blocks in batches, so that the medicine proportioning among gunpowder can be ensured, and the shape, the size and the quality of the gunpowder blocks can be ensured to be in a controllable range, thereby being beneficial to the uniform emission and combustion of the gunpowder blocks.

Preferably, the percentage of the cylindrical firework emitting explosive blocks 2 and the firework display explosive blocks 3 in the step 10 is set to be 75-85% of the firework emitting explosive blocks and 15-25% of the firework display explosive blocks; wherein, the upper tolerance of the standard specification parameter error of the shape, the size and the quality of the standard gunpowder block 1 in the column shape produced in the same batch is 500 percent, and the lower tolerance is 30 percent. Wherein, the upper tolerance of 500 percent refers to the shape, size and quality of a plurality of gunpowder blocks which are stuck together during drying, and the gunpowder blocks need to be separated when being installed in the actual image-text fireworks.

Preferably, the molding cavity 401 is provided with a demolding angle, and the roughness of the surface thereof is equal to or less than 0.8 um. By adopting the technical scheme, the gunpowder demoulding in the forming cavity is facilitated.

Preferably, the forming press rod 402 is used in the forming cavity 401 at a pressure not exceeding 5 MPa.

Preferably, the more the ignition performance enhancer in the pyrotechnic charge 2, the more readily it is possible to ignite the pyrotechnic charge 2; the more the ignition performance enhancer in the firework display explosive block 3, the easier the firework display explosive block 3 is to ignite and burn, and the less the deactivator is, the more the firework display explosive block 3 burns.

Preferably, the forming press rod 402 comprises a first forming press rod 410 and a second forming press rod, and a spherical buckle 411 protruding out of the forming surface is arranged on the forming surface of the first forming press rod 410, as shown in fig. 9; the spherical buckle 411 is used for forming a spherical clamping groove on the firework propellant powder block 2 when the firework propellant powder block 2 is formed; the spherical clamping grooves are used for extruding the firework display explosive blocks into the spherical clamping grooves when the firework display explosive blocks are molded and are connected together by using the molded explosive blocks, as shown in fig. 10; the forming surface of the second forming pressure lever is a plane and is used for extruding fireworks display powder in the forming cavity.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

In actual manufacturing, as shown in fig. 1; selecting conventional powdered firework propellant powder and firework display powder for later use; then, using a conventional gunpowder granulator to prepare the powdery firework propellant into granular firework propellant with consistent shape, size and quality; then, preparing 82% of granular firework propellant, 15% of organic adhesive and 3% of ignition performance enhancer in percentage, and uniformly mixing and stirring the organic adhesive and the ignition performance enhancer to obtain a first adhesive used by the granular firework propellant; then, sequentially adding the granular firework propellant powder and the first adhesive into a conventional gunpowder stirrer to be mixed and stirred for 20-30min to obtain the granular firework propellant powder with the first adhesive for later use; preparing 86% of firework display powder, 15% of organic adhesive, 0.5% of ignition performance enhancer and 1.5% of passivating agent, and uniformly mixing and stirring the organic adhesive, the ignition performance enhancer and the passivating agent to obtain a second adhesive used by the firework display powder; then, adding the firework display powder into a conventional gunpowder stirrer for stirring, adding a second adhesive into the gunpowder stirrer for three times during stirring, wherein half of the second adhesive is added when the gunpowder stirrer is started for the first time, the remaining 2/3 second adhesive is poured during stirring for 10-15min, stirring is carried out for 10-15min, and finally, the remaining second adhesive is completely poured into the stirrer for stirring to obtain flocculent firework display powder for standby; subpackaging the obtained granular firework propellant powder with the first adhesive into a forming cavity on a forming jig according to the quality of a standard specification, as shown in fig. 4; pressing for 1-3min with a molding press rod to compress the granular fireworks propellant powder in the molding cavity, as shown in FIG. 5; then, the flocculent firework display powder is subpackaged on the granular firework emitting powder in the forming cavity according to the quality of the standard specification, as shown in figure 6; pressing for 3-5min with a molding press rod to compress the firework display powder in the molding cavity, and compressing the firework display powder on the firework propellant powder, as shown in FIG. 7; finally, the firework emitting powder and the firework display powder which are tightly pressed together in the forming cavity are taken out by using an ejector rod on the forming jig, and dried as shown in fig. 8, so that a cylindrical standard firework emitting powder block and a cylindrical firework display powder block which are bonded together are obtained, as shown in fig. 2; rolling the standard gunpowder block on graphite powder before warehousing to coat a layer of graphite powder on the surface of the standard gunpowder block.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A preparation method of a special standard gunpowder block for a graphic firework lattice structure body is characterized by comprising the following steps: the firework powder generating device comprises a standard firework powder block (1), wherein the standard firework powder block (1) is arranged into a cylindrical firework powder block, and the cylindrical firework powder block comprises a firework emitting powder block (2) and a firework displaying powder block (3); the firework display powder block (3) is a cylindrical firework display powder block (3) prepared by mixing firework display powder for firework lift-off combustion with an organic adhesive, an ignition performance enhancer and a passivating agent; the firework launching charge block (2) is a cylindrical firework launching charge block (2) prepared by mixing firework launching charges, an ignition performance enhancer and an organic adhesive; the cylindrical firework emitting explosive block (2) is bonded with the cylindrical firework display explosive block (3); the preparation method of the standard gunpowder block (1) comprises the following steps:

step 1): selecting powder firework propellant powder and firework display powder for standby;

step 2): manufacturing the powdery firework propellant into granular firework propellant with consistent shape, size and quality by using a gunpowder granulator;

step 3): mixing and uniformly stirring the organic adhesive and the ignition performance enhancer to obtain a first adhesive used by the granular firework propellant;

step 4): sequentially adding the granular firework propellant and the first adhesive into a gunpowder stirrer for mixing and stirring to obtain the granular firework propellant with the first adhesive for later use;

step 5): mixing and stirring the organic adhesive, the ignition performance enhancer and the passivator uniformly to obtain a second adhesive used by the firework display powder;

step 6): sequentially adding the powdery firework display powder and the second adhesive into a gunpowder stirrer for mixing and stirring, so that the stirred firework display powder is flocculent for later use; wherein, the second adhesive is added into the gunpowder stirrer for multiple times;

step 7): preparing a forming jig (4) of the standard gunpowder block (1);

step 8): subpackaging the granular firework propellant with the first adhesive obtained in the step (4) into a forming cavity (401) on a forming jig (4) according to the quality of a standard specification; and the granular fireworks propellant powder in the molding cavity (401) is compacted by using a molding compression bar (402);

step 9): subpackaging the flocculent firework display powder obtained in the step 6 on granular firework emitting powder in a forming cavity (401) according to the quality of a standard specification; the firework display powder in the molding cavity (401) is compressed by using a molding compression rod (402), and the firework display powder is compressed on the firework emitting powder;

step 10): and (3) taking out the firework propellant powder and the firework display powder which are pressed together in the molding cavity (401) by using a mandril (403) on the molding jig (4), and drying to obtain a cylindrical standard firework powder block (1) which is formed by bonding a cylindrical firework propellant powder block (2) and a cylindrical firework display powder block (3).

2. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the percentage of the firework display powder, the organic adhesive, the ignition performance enhancer and the passivating agent is set to be 80-90%, 10-15% of the organic adhesive, 0.1-2% of the ignition performance enhancer and 1-5% of the passivating agent.

3. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the percentage of the fireworks propellant, the ignition performance enhancer and the organic binder is set to 85-95% of the fireworks propellant, 0.5-5% of the ignition performance enhancer and 5-15% of the organic binder.

4. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the particle size of the granular firework propellant prepared in the step 2 is set to be 2-3 mm, and the granular firework propellant is spherical or columnar particles; the spherical or columnar particles have a packing density in the firework propellant block (2)

0.1g/cm3-0.5g/cm3, both surface and interior having pores with a pore size set in the range of 0.1mm-0.5 mm.

5. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the forming jig (4) in the step 7 comprises a bottom plate (404), a forming plate (405) and a pressing plate (406), wherein a plurality of forming cavities (401) are formed in the forming plate (405), a push rod (403) is arranged in each forming cavity (401) and connected with the bottom plate (404), and a plurality of forming press rods (402) corresponding to the forming cavities (401) are arranged on the pressing plate (406); wherein the forming jig (4) is made of antistatic ceramics.

6. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: and in the step 9, the side, connected with the firework propellant powder, of the firework propellant powder is slightly extruded into pores among firework propellant powder particles during compaction, so that the firework propellant powder and the firework propellant powder are bonded together after being bonded or dried.

7. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the drying in the step 10 is carried out by adopting hot air with the temperature not more than 38 ℃ for circular drying; the drying time is not less than 8 hours.

8. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the percentage of the cylindrical firework emitting explosive blocks (2) and the firework display explosive blocks (3) in the step 10 is set to be 75-85% of the firework emitting explosive blocks and 15-25% of the firework display explosive blocks; wherein, the upper tolerance of the standard specification parameter error of the shape, the size and the quality of the column-shaped standard gunpowder block (1) produced in the same batch is 500 percent, and the lower tolerance is 30 percent.

9. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 5, wherein the preparation method comprises the following steps: the molding cavity (401) is provided with a demolding angle, and the roughness of the surface of the molding cavity is equal to or less than 0.8 mu m.

10. The preparation method of the special standard gunpowder block for the image-text firework lattice structure body according to claim 1, which is characterized in that: the organic adhesive comprises water solution of water-soluble polymer adhesive or sol or emulsion containing nitrocotton; the passivator comprises one of camphor, carbanilide, phthalate, dinitrotoluene, nitrodiphenylamine and resorcinol; the ignition performance enhancer comprises an emulsion of an olefin or ketone solvent containing at least one of sodium nitrate, potassium nitrate, barium nitrate, strontium nitrate, sodium perchlorate, potassium perchlorate and carbon particles; the firework display powder is prepared by mixing sulfur powder, potassium nitrate, charcoal powder and inorganic metal salt or metal powder.

11. The standard gunpowder block special for the image-text firework lattice structure prepared by the preparation method of the standard gunpowder block special for the image-text firework lattice structure according to one of claims 1 to 10.