CN109631681B - Special standard gunpowder block for firework lattice structure body and preparation method thereof - Google Patents
Special standard gunpowder block for firework lattice structure body and preparation method thereof Download PDFInfo
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- CN109631681B CN109631681B CN201811651813.1A CN201811651813A CN109631681B CN 109631681 B CN109631681 B CN 109631681B CN 201811651813 A CN201811651813 A CN 201811651813A CN 109631681 B CN109631681 B CN 109631681B
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Abstract
The invention discloses a special standard gunpowder block for a 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 standard gunpowder block, and the cylindrical standard gunpowder block is formed by connecting a firework emitting block and a firework display block through a connecting piece; the firework display block is prepared by mixing firework display powder burnt by lifting off conventional fireworks in the industry, organic adhesive, ignition performance enhancer and passivator. The standard firework powder block is formed by integrally connecting the firework emission block and the firework display block through the connecting piece, so that the firework emission block and the firework display block are distinct and are firmly connected and are not easy to separate, and the ignition performance enhancer and the passivating agent added in the firework powder block can be beneficial to ignition of the firework emission block and reduction of the setting-off speed of the firework display block.
Description
Technical Field
The invention relates to the field of image-text fireworks, in particular to a special standard gunpowder block for a 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, sweet-and-sour festival and other important activities need to be put off 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 meeting the requirements of the image-text firework lattice structure, and the gunpowder block becomes one of the key technologies meeting the requirements of the public, so that the gunpowder block used by the image-text firework lattice structure needs to be researched.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides the special standard gunpowder block for the firework lattice structural body and the preparation method thereof, the gunpowder block has the advantages of high production efficiency, low cost and simple and convenient manufacturing process, is beneficial to standardized design, reduces the cost of image-text fireworks, is suitable for wide application and popularization, and ensures that the image-text fireworks can meet the requirements of the public; and because the jig is adopted for batch production, the proportion of the medicines can be ensured to be consistent, and the requirement of mechanized integrated production is met.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the standard gunpowder block special for the firework lattice structure comprises a standard gunpowder block and a preparation method of the standard gunpowder block, wherein the standard gunpowder block is arranged into a cylindrical standard gunpowder block, and the cylindrical standard gunpowder block is formed by connecting a firework emitting block and a firework display block through a connecting piece; the firework display block is prepared by mixing firework display powder combusted in the lift-off process of conventional fireworks in the industry, organic adhesive, ignition performance enhancer and passivator; the firework launching block is prepared by mixing firework launching powder launched and lifted off by conventional fireworks and crackers in the industry, an ignition performance enhancer and an organic adhesive; the upper tolerance of the standard specification parameter error of the shape, the size and the quality of the columnar particles produced by the columnar standard gunpowder blocks in the same batch is 500 percent, and the lower tolerance is 30 percent; the preparation method of the standard gunpowder block used by the dot matrix emitter comprises the following steps:
step 1: selecting conventional powdered firework propellant powder and firework display powder;
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 bonding agent and the ignition performance enhancer according to the mass ratio of the standard specification to obtain a first bonding agent used by the granular firework propellant;
and 4, step 4: sequentially adding granular firework propellant powder and a first adhesive into a conventional powder stirrer according to the mass ratio of standard specifications for mixing and stirring to obtain firework propellant powder granules with the adhesive on the surfaces for later use;
and 5: mixing and uniformly stirring the passivator, the ignition performance enhancer and the organic adhesive according to the mass ratio of the standard specification 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 according to the mass ratio of the standard specification, and uniformly mixing and stirring to enable the stirred firework display powder to be flocculent for later use;
and 7: preparing a forming jig for forming standard gunpowder blocks;
and 8: uniformly filling the firework emitting powder particles with the adhesive and the flocculent firework display powder obtained in the steps 4 and 6 to two sides in the forming cavity of the forming jig according to a part of the mass ratio of the standard firework block specification, then putting the connecting piece between the firework emitting powder and the firework display powder, continuously uniformly filling the rest part of the mass ratio of the standard firework block specification to two sides in the forming cavity, and covering the put connecting piece;
and step 9: pressing a pressing plate on the forming jig on the forming cavity, then pushing forming pressing rods on two sides of the forming cavity simultaneously, and extruding the firework emitting powder and the firework display powder on two sides of the forming cavity into block-shaped gunpowder blocks on two sides of the connecting piece;
step 10: and resetting the forming pressure rod, opening the pressure plate, then taking out the extruded and formed gunpowder blocks from the forming cavity by using the ejector rods on the forming jig, and drying to obtain the standard gunpowder blocks used by the dot matrix emitter.
Preferably, the percentages of the organic binder and the ignition quality increaser in the step 3 are set to 95-99.8% of the organic binder and 0.2-5% of the ignition quality increaser.
Preferably, the percentage of the firework propellant and the first adhesive in the step 4 is set to 85-95% of the firework propellant and 5-15% of the first adhesive.
Preferably, the percentage of the passivating agent, the ignition quality enhancer and the organic binder in the step 5 is set to be 1-5% of the passivating agent, 0.1-2% of the ignition quality enhancer and 93-98.9% of the organic binder.
Preferably, the percentage of the firework display powder and the second adhesive in the step 6 is set to 80-90% of the firework display powder and 10-20% of the second adhesive.
Preferably, the forming jig in the step 7 comprises a template, a pressing plate, an ejector rod and a forming pressing rod, wherein a forming cavity is formed in the template, two sides of the forming cavity are respectively connected with the forming pressing rod, the bottom of the forming cavity is connected with the ejector rod, and the top of the forming cavity is connected with the pressing plate. The forming jig is made of ceramic or metal, and the forming jig made of metal needs to be connected with the ground through a lead when in use.
Preferably, the firework emitting powder and the firework displaying powder in the step 8 are extruded into the forming cavity by a conventional powder barrel; the connecting piece is clamped by a manipulator and is put into the forming cavity; the connecting piece is a cylinder which is formed by connecting two buckles or spheres and is large at two sides and small in the middle, and the cylinder is provided with a clamping hole for connecting the manipulator.
Preferably, after the standard explosive block in the step 10 is taken out or dried, rolling a layer of graphite powder on the outer surface of the standard explosive block; wherein, the drying adopts hot air with the temperature not more than 38 ℃ for circular drying. By adopting the technical scheme, the arranged graphite powder can effectively reduce the friction of materials in moving or carrying to generate static electricity, and the safety of storage, carrying and installation of gunpowder blocks is improved.
Preferably, the percentage of the firework emitting block and the firework display block in the standard gunpowder block is set to be 70-80% of the firework emitting block and 30-20% of the firework display block; wherein the packing density of the firework emission block 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. By adopting the technical scheme, the larger the grain size is, the larger the pores of the formed firework emitting block are. Wherein the apertures facilitate combustion of the fireworks launch block.
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; wherein 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 particle diameter of the granular fireworks propellant prepared in step 2 is set to be spherical or columnar particles of 2-5 mm.
Preferably, a graphite layer which is easy to demould, and an antistatic plastic film or a paraffin layer are arranged on the periphery of the forming cavity. By adopting the technical scheme, the arranged graphite layer and the anti-static plastic film or paraffin layer not only contribute to material demoulding, but also can reduce static generated by the standard gunpowder block when the standard gunpowder block is carried and rubbed, and increase the use safety of the standard gunpowder block.
Preferably, the molding cavity is provided with a demolding angle, and the surface roughness of the molding cavity, the ejector rod and the molding press rod is equal to or less than 0.8 um.
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 firework emitting block and the firework display block are integrally connected and formed through the connecting piece, so that the firework emitting block and the firework display block are distinct and are firmly connected and not easy to separate, and the ignition performance enhancer and the passivating agent added in the firework emitting block can be beneficial to ignition of the firework emitting block and reduction of the setting-off speed of the firework display block;
2. the gunpowder block can be produced in batch through the jig, the medicine proportion of the firework emitting block and the firework display block can be basically consistent, and the firework emitting block and the firework display block can emit and display pictures and texts in a unified manner in the picture and text firework lattice structure;
3. the gunpowder block disclosed by the invention is high in production efficiency, low in cost and simple and convenient in manufacturing process, is beneficial to standardized design, reduces the cost of image-text fireworks, is suitable for wide application and popularization, and can meet the requirements of the public; and because the jig is adopted for batch production, the proportion of the medicines can be ensured to be consistent, and the requirement of mechanized integrated production is met.
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 making a powder block according to the present invention;
FIG. 2 is a schematic structural diagram of a standard gunpowder 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 illustration of the charge in the packing section of the molding cavity according to the present invention;
FIG. 5 is a schematic view of the placement of a connector according to the present invention;
FIG. 6 is a schematic illustration of a mold cavity charge in accordance with the present invention;
FIG. 7 is a schematic view of a platen installation in accordance with the present invention;
FIG. 8 is a schematic view of the extrusion of the molding press bar according to the present invention;
fig. 9 is a schematic diagram of ejector pin ejection according to the present invention.
The reference numbers in the figures illustrate: the gunpowder forming device comprises a standard gunpowder block 1, a firework emitting block 2, a firework display block 3, a connecting piece 4, a forming jig 5, a pressing plate 6, a forming pressing rod 7, an ejector rod 8, a template 9, a forming cavity 901, a gunpowder extruding barrel 10 and a manipulator 11.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
referring to fig. 1 to 9, the standard gunpowder block special for the firework lattice structure 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 standard gunpowder block 1, and the cylindrical standard gunpowder block 1 is formed by connecting a firework emitting block 2 and a firework display block 3 through a connecting piece 4; the firework display block 3 is prepared by mixing firework display powder combusted in the lift-off process of conventional fireworks in the industry, organic adhesive, ignition performance enhancer and passivator; the firework launching block 2 is a firework launching block 2 prepared by mixing firework launching powder launched and lifted off by conventional fireworks and crackers in the industry, an ignition performance enhancer and an organic adhesive; the upper tolerance of the standard specification parameter error of the shape, the size and the quality of the columnar particles produced by the columnar standard gunpowder block 1 in the same batch is 500 percent, and the lower tolerance is 30 percent; the preparation method of the standard gunpowder block 1 used by the dot matrix emitter comprises the following steps:
step 1: selecting conventional powdered firework propellant powder and firework display powder;
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 bonding agent and the ignition performance enhancer according to the mass ratio of the standard specification to obtain a first bonding agent used by the granular firework propellant;
and 4, step 4: sequentially adding granular firework propellant powder and a first adhesive into a conventional powder stirrer according to the mass ratio of standard specifications for mixing and stirring to obtain firework propellant powder granules with the adhesive on the surfaces for later use;
and 5: mixing and uniformly stirring the passivator, the ignition performance enhancer and the organic adhesive according to the mass ratio of the standard specification 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 according to the mass ratio of the standard specification, and uniformly mixing and stirring to enable the stirred firework display powder to be flocculent for later use;
and 7: preparing a forming jig 5 for forming the standard gunpowder block 1; as shown in fig. 3;
and 8: uniformly filling the firework propellant powder particles with the adhesive and the flocculent firework display powder obtained in the steps 4 and 6 to two sides in the forming cavity 901 of the forming jig 5 according to a part of the mass ratio of the standard firework powder block 1, then putting the connecting piece 4 between the firework propellant powder and the firework display powder, continuously filling the rest part of the standard firework powder block 1 in the mass ratio to two sides in the forming cavity 901, and covering the put connecting piece 4; as shown in fig. 4, 5, 6;
and step 9: pressing a pressing plate 6 on a forming jig 5 on a forming cavity 901, then simultaneously pushing forming pressing rods 7 on two sides of the forming cavity 901, and extruding firework emitting powder and firework displaying powder on two sides of the forming cavity 901 into block-shaped powder blocks on two sides of a connecting piece 4; as shown in fig. 7 and 8;
step 10: resetting the forming pressure rod 7, opening the pressure plate 6, then taking out the extruded gunpowder blocks from the forming cavity 901 by using the ejector rods 8 on the forming jig 5, and drying to obtain the standard gunpowder blocks 1 used by the dot matrix emitter; as shown in fig. 9 and 2.
Preferably, the percentages of the organic binder and the ignition quality increaser in the step 3 are set to 95-99.8% of the organic binder and 0.2-5% of the ignition quality increaser.
Preferably, the percentage of the firework propellant and the first adhesive in the step 4 is set to 85-95% of the firework propellant and 5-15% of the first adhesive.
Preferably, the percentage of the passivating agent, the ignition quality enhancer and the organic binder in the step 5 is set to be 1-5% of the passivating agent, 0.1-2% of the ignition quality enhancer and 93-98.9% of the organic binder.
Preferably, the percentage of the firework display powder and the second adhesive in the step 6 is set to 80-90% of the firework display powder and 10-20% of the second adhesive.
Preferably, the forming jig 5 in the step 7 comprises a template 9, a pressing plate 6, an ejector rod 8 and a forming compression rod 7, wherein a forming cavity 901 is formed in the template 9, two sides of the forming cavity 901 are respectively connected with the forming compression rod 7, the bottom of the forming cavity is connected with the ejector rod 8, and the top of the forming cavity is connected with the pressing plate 6. Wherein, the forming jig 5 is made of ceramic or metal, and the forming jig made of metal needs to be connected with the ground by using a lead when in use.
Preferably, the firework emitting powder and the firework displaying powder in the step 8 are extruded into the molding cavity 901 by a conventional powder extruding barrel 10; the connecting piece 4 is clamped by a manipulator 11 and put into the molding cavity 901; the connecting piece 4 is a cylinder which is connected by two buckles or spheres and has two large sides and a small middle part, and the cylinder is provided with a clamping hole for connecting the manipulator 11.
Preferably, after the standard gunpowder block 1 in the step 10 is taken out or dried, rolling a layer of graphite powder on the outer surface of the standard gunpowder block; wherein, the drying adopts hot air with the temperature not more than 38 ℃ for circular drying. By adopting the technical scheme, the arranged graphite powder can effectively reduce the friction of materials in moving or carrying to generate static electricity, and the safety of storage, carrying and installation of gunpowder blocks is improved.
Preferably, the percentage of the firework emitting block 2 and the firework display block 3 in the standard gunpowder block 1 is set to be 70-80% and 30-20%; wherein the packing density of the firework emission 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. By adopting the technical scheme, the larger the grain size is, the larger the pores of the formed firework emitting block are. Wherein the apertures facilitate combustion of the fireworks launch block.
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; wherein 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 particle diameter of the granular fireworks propellant prepared in step 2 is set to be spherical or columnar particles of 2-5 mm.
Preferably, a graphite layer, an antistatic plastic film or a paraffin layer which is easy to demould is arranged around the molding cavity 901. By adopting the technical scheme, the arranged graphite layer and the anti-static plastic film or paraffin layer not only contribute to material demoulding, but also can reduce static generated by the standard gunpowder block when the standard gunpowder block is carried and rubbed, and increase the use safety of the standard gunpowder block.
Preferably, the molding cavity 901 is provided with a demolding angle, and the surface roughness of the molding cavity 901, the ejector rod 8 and the molding press rod 7 is equal to or less than 0.8 um.
Preferably, the pressure of the forming press rod 7 used in the forming cavity 901 is not more than 5 MPa.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In actual manufacturing, as shown in fig. 1, firstly, conventional powdery firework propellant powder and firework display powder are selected; then, using a conventional gunpowder granulator to manufacture the powdery firework propellant powder into granular firework propellant powder with consistent shape, size and quality, uniformly mixing and stirring 99.5 percent of organic binder and 0.5 percent of ignition performance enhancer to obtain a first adhesive used by the granular firework propellant powder, then sequentially adding 85 percent of the granular firework propellant powder and 15 percent of the first adhesive into a conventional gunpowder stirrer to mix and stir, and stirring to obtain firework propellant powder granules with the adhesive on the surfaces; then, 2 percent of passivator, 0.2 percent of ignition performance enhancer and 97.8 percent of organic adhesive are mixed and stirred uniformly to obtain a second adhesive used by the firework display powder; sequentially adding 85 percent of powdery firework display powder and 15 percent of second adhesive into a conventional gunpowder stirrer for uniformly mixing and stirring, so that the stirred firework display powder is flocculent; uniformly filling 80% of the obtained firework propellant powder particles and 20% of flocculent firework display powder with the adhesive on two sides of a molding cavity respectively according to the total mass percentage of the firework propellant powder particles and flocculent firework display powder of the standard firework block specification, as shown in figure 4, then placing connecting pieces on two sides of the connection of the firework propellant powder and the firework display powder, as shown in figure 5, uniformly filling the remaining half of the firework propellant powder particles and the flocculent firework display powder on two sides of the molding cavity, as shown in figure 6, then pressing a pressing plate on a molding jig on the molding cavity, as shown in figure 7, simultaneously pushing molding pressing rods on two sides of the molding cavity, extruding the firework propellant powder and the firework display powder on two sides of the molding cavity into blocky firework blocks on two sides of the connecting pieces, as shown in figure 8, then resetting the molding pressing rods, and opening the pressing plate, and (3) taking the extruded gunpowder block out of the molding cavity by using a mandril as shown in figure 9, and then putting the powder block into a dryer to be circularly dried for 24 hours by adopting hot air at 36 ℃, thereby obtaining the standard gunpowder block used by the dot matrix emitter as shown in figure 2.
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 (6)
1. The preparation method of the special standard gunpowder block for the firework lattice structure comprises a preparation method of a standard gunpowder block (1) and a preparation method of a standard gunpowder block (1), and is characterized in that: the standard gunpowder block (1) is arranged into a cylindrical standard gunpowder block (1), and the cylindrical standard gunpowder block (1) is formed by connecting a firework emitting block (2) with a firework display block (3) through a connecting piece (4); the firework display block (3) is prepared by mixing firework display powder which is burnt in the lift-off process of conventional fireworks in the industry, organic adhesive, ignition performance enhancer and passivator; the firework launching block (2) is a firework launching block (2) prepared by mixing firework launching powder launched and lifted by conventional fireworks and crackers in the industry, an ignition performance enhancer and an organic adhesive; the upper tolerance of the shape, the size and the quality of the columnar particles produced by the columnar standard gunpowder block (1) in the same batch is 500 percent, and the lower tolerance of the standard gunpowder block is 30 percent; the preparation method of the standard gunpowder block (1) used by the dot matrix emitter comprises the following steps:
step 1): selecting conventional powdered firework propellant powder and firework display powder;
step 2): manufacturing the powdery firework propellant into granular firework propellant with consistent shape, size and quality by using a conventional gunpowder granulator;
step 3): mixing and uniformly stirring the organic bonding agent and the ignition performance enhancer according to the mass ratio of the standard specification to obtain a first bonding agent used by the granular firework propellant;
step 4): sequentially adding granular firework propellant powder and a first adhesive into a conventional powder stirrer according to the mass ratio of standard specifications for mixing and stirring to obtain firework propellant powder granules with the adhesive on the surfaces for later use;
step 5): mixing and uniformly stirring the passivator, the ignition performance enhancer and the organic adhesive according to the mass ratio of the standard specification 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 according to the mass ratio of the standard specification, and uniformly mixing and stirring to enable the stirred firework display powder to be flocculent for later use; step 7): preparing a forming jig (5) for forming the standard gunpowder block (1);
step 8): uniformly filling the firework propellant powder particles with the adhesive and the flocculent firework display powder obtained in the steps 4) and 6) into two sides of a forming cavity (901) of a forming jig (5) according to a part of the mass ratio of the standard firework powder block (1) specification, then putting a connecting piece (4) into the middle of the firework propellant powder and the firework display powder, continuously and uniformly filling the rest part of the standard firework powder block (1) specification mass ratio into two sides of the forming cavity (901), and covering the put connecting piece (4);
step 9): pressing a pressing plate (6) on a forming jig (5) on a forming cavity (901), then simultaneously pushing forming pressing rods (7) on two sides of the forming cavity (901), and extruding firework emitting powder and firework displaying powder on two sides of the forming cavity (901) into blocky gunpowder blocks on two sides of a connecting piece (4);
step 10): resetting a forming compression bar (7), opening a pressing plate (6), taking out an extruded and formed gunpowder block from a forming cavity (901) by using an ejector rod (8) on a forming jig (5), and drying to obtain a standard gunpowder block (1) used by a dot matrix emitter, wherein the percentages of an organic bonding agent and an ignition performance enhancer in the step 3) are set to be 95-99.8% of the organic bonding agent, 0.2-5% of the ignition performance enhancer, the percentages of a firework emitting agent and a first adhesive in the step 4) are set to be 85-95% of the firework emitting agent, 5-15% of the first adhesive, the percentages of a passivator, an ignition performance enhancer and an organic adhesive in the step 5) are set to be 1-5% of the passivator, 0.1-2% of the ignition performance enhancer and 93-98.9% of the organic adhesive, and the percentages of the firework display agent and a second adhesive in the step 6) are set to be 80-90 percent of the standard gunpowder block (1), 10-20 percent of the second adhesive, and 70-80 percent of the firework emission block and 30-20 percent of the firework display block in the standard gunpowder block (1); wherein the stacking density of the firework emitting block (2) is 0.1g/cm3-0.5g/cm3And 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.
2. The preparation method of the special standard powder block for the firework lattice structure as claimed in claim 1, wherein the preparation method comprises the following steps: the forming jig (5) in the step 7) comprises a template (9), a pressing plate (6), ejector rods (8) and forming pressing rods (7), wherein a forming cavity (901) is formed in the template (9), two sides of the forming cavity (901) are respectively connected with the forming pressing rods (7), the bottom of the forming cavity is connected with the ejector rods (8), and the top of the forming cavity is connected with the pressing plate (6).
3. The preparation method of the special standard powder block for the firework lattice structure as claimed in claim 1, wherein the preparation method comprises the following steps: the firework emitting powder and the firework displaying powder in the step 8) are extruded into a molding cavity (901) by a conventional powder extruding barrel (10); the connecting piece (4) is clamped by a manipulator (11) and is placed into the molding cavity (901); the connecting piece (4) is a cylinder which is formed by connecting two buckles or spheres and is large at two sides and small in the middle, and a clamping hole for connecting the manipulator (11) is formed in the cylinder.
4. The preparation method of the special standard powder block for the firework lattice structure as claimed in claim 1, wherein the preparation method comprises the following steps: rolling a layer of graphite powder on the outer surface of the standard gunpowder block (1) in the step 10) after being taken out or dried; wherein the drying is carried out by circulating drying by hot air with the temperature not exceeding 38 ℃.
5. The preparation method of the special standard powder block for the firework lattice structure as claimed in claim 1, wherein the preparation method comprises the following steps: 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; wherein the related metal elements comprise one of barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, lead, rubidium, antimony, strontium, thallium and zinc.
6. The standard gunpowder block special for the firework lattice structure prepared by the preparation method of the standard gunpowder block special for the firework lattice structure according to one of claims 1 to 5.
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