CN109708533B

CN109708533B - Special gunpowder block for image-text firework lattice emitter and preparation method thereof

Info

Publication number: CN109708533B
Application number: CN201811651800.4A
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: 2021-09-21
Anticipated expiration: 2038-12-31
Also published as: CN109708533A

Abstract

The invention discloses a special gunpowder block for an image-text firework dot matrix emitter and a preparation method thereof, wherein the special gunpowder block comprises a gunpowder block, the gunpowder block is arranged into a columnar gunpowder block, and the columnar gunpowder block is formed by bonding a firework emitting block and a firework display block through a combustion-supporting adhesive sheet; the combustion-supporting adhesive sheet comprises an adhesive sheet and an adhesive arranged on the adhesive sheet; the firework launching block is prepared by mixing firework launching powder, ignition performance enhancer and organic adhesive which are launched and lifted off by conventional fireworks and crackers in the industry. The firework emitting block and the firework display block are integrally formed through the combustion-supporting adhesive sheet, so that the firework emitting block and the firework display block are distinct and are firmly connected and are not easy to separate, the added adhesive sheet is beneficial to retarding the ignition of the firework display block during emission, and the ignition performance enhancer and the passivating agent added in the firework emitting block can be beneficial to the ignition of the firework emitting block and retarding the combustion speed of the firework display block.

Description

Special gunpowder block for image-text firework lattice emitter and preparation method thereof

Technical Field

The invention relates to the field of image-text fireworks, in particular to a special gunpowder block for an image-text firework lattice emitter 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 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 the image-text fireworks, is suitable for wide application and popularization, and can meet the requirements of the public for the image-text fireworks; 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:

a special gunpowder block for an image-text firework lattice emitter and a preparation method thereof comprise a gunpowder block and a gunpowder block preparation method, wherein the gunpowder block is arranged into a columnar gunpowder block, and the columnar gunpowder block is formed by bonding a firework emitting block and a firework display block through a combustion-supporting adhesive sheet; the combustion-supporting adhesive sheet comprises an adhesive sheet and an adhesive arranged on the adhesive sheet; the firework launching block is prepared by mixing firework launching powder, ignition performance enhancer and organic adhesive which are launched and lifted off by conventional fireworks and crackers in the industry; 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 and passivator; the upper tolerance of the shape, the size and the quality of the columnar particles produced by the columnar gunpowder blocks in the same batch is 500 percent, and the lower tolerance of the standard specification parameter error is 30 percent; the preparation method of the gunpowder block used by the dot matrix emitter comprises the following steps:

preparing a firework emission block:

step 1, manufacturing powdery firework propellant into granular firework propellant with consistent shape, size and quality by using a conventional gunpowder granulator;

step 2: 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 step 3: 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;

and 4, step 4: preparing a first forming jig for forming the firework emitting block;

and 5: subpackaging the firework propellant powder particles with the adhesive on the surfaces into each forming cavity of the first forming jig according to the mass ratio of the firework powder block specification;

step 6: pressing the firework propellant powder in the molding cavity by using a molding press rod on the first molding jig so as to press the firework propellant powder into blocks in the molding cavity;

and 7: taking out the medicine blocks in the molding cavity, and drying to obtain a spare firework emitting block;

preparation of a firework display block:

and 8: mixing and stirring the passivator and the organic adhesive uniformly according to the mass ratio of the standard specification to obtain a second adhesive used by the firework display powder;

and step 9: 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;

step 10: preparing a second forming jig for forming the firework display block;

step 11: subpackaging the flocculent firework display powder into each forming cavity of the second forming jig according to the mass ratio of the specification of the firework display powder;

step 12: pressing the firework display powder in the molding cavity by using a molding press rod on the second molding jig so that the firework display powder is pressed into blocks in the molding cavity;

step 13: taking out the medicine blocks in the molding cavity, and drying to obtain a standby firework display block;

preparing a gunpowder block:

step 14: preparing a third forming jig for forming the gunpowder block;

step 15: mixing and stirring the organic bonding agent, the ignition performance enhancer and the combustion-supporting substance uniformly according to the mass ratio of the standard specification to obtain the bonding agent used by the sticking sheet;

step 16: coating a layer of adhesive on two sides of the adhesive sheet, and respectively adhering two sides of the adhesive sheet on the firework display block and the firework emitting block;

and step 17: putting the firework display block and the firework emitting block stuck on the sticking piece into a forming cavity of a third forming jig, pressing a pressing plate on the third forming jig on the forming cavity, pushing forming pressing rods on two sides of the forming cavity, and pressing the firework display block and the firework emitting block in the forming cavity on two sides of the sticking piece to form a blocky gunpowder block;

step 18: and resetting the forming pressure lever on the third forming jig, opening the pressure plate, then taking the extruded gunpowder block out of the forming cavity by using the ejector rod, and drying the adhesive sheet to obtain the columnar gunpowder block used by the dot matrix emitter.

Preferably, the percentages of the organic binder and the ignition quality increasing agent in step 2 are set to 98-99.9% for the organic binder and 0.1-2% for the ignition quality increasing agent.

Preferably, the percentage of the firework propellant and the first adhesive in the step 3 is set to 80-95% of the firework propellant and 5-20% of the first adhesive.

Preferably, the percentage of the passivating agent and the organic binder in the step 8 is set to be 1-5% of the passivating agent and 95-99% of the organic binder.

Preferably, the percentage of the firework display powder and the second adhesive in the step 9 is set to 85-90% of the firework display powder and 10-15% of the second adhesive.

Preferably, the percentages of the organic binder, the ignition quality enhancer and the comburent in the step 15 are set to 88 to 94.5 percent of the organic binder, 0.5 to 2 percent of the ignition quality enhancer and 5 to 10 percent of the comburent.

Preferably, the first and second forming jigs in step 4 and step 10 include a base and a template disposed on the base, the template is provided with a forming cavity, the bottom of the forming cavity is provided with an ejector rod connected with the base, and the top of the forming cavity is provided with a forming press rod. The first forming jig and the second forming jig are made of ceramic or metal, and the forming jig made of metal is connected with the ground through a lead when in use.

Preferably, the third forming jig in the step 14 comprises a template, a pressing plate, an ejector rod and a forming compression rod, wherein a forming cavity is arranged on the template, two sides of the forming cavity are respectively connected with the forming compression 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 third forming jig 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 drying in step 7 or step 13 or step 18 is performed by circulating hot air with a temperature not exceeding 38 ℃.

Preferably, the comburent in step 15 includes one of charcoal, aluminum powder, magnesium aluminum alloy powder, sulfur and fixed powder.

Preferably, the adhesive wafer comprises a microporous paper sheet or tissue paper or wood sheet. By adopting the technical scheme, firm bonding in the third forming jig is facilitated; wherein the adhesive patch helps to delay ignition of the fireworks display block.

Preferably, the particle diameter of the granular fireworks propellant prepared in the step 1 is set to be spherical or columnar particles with the particle diameter of 2-3 mm.

Preferably, the pressure of the forming compression bar in the

step

6, 12 or 17 in the forming cavity does not exceed 5 MPa.

Preferably, the percentage of the firework emitting block and the firework display block in the gunpowder block is set to be 70-90% of the firework emitting block and 10-30% of the firework display block; 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.

Preferably, before or after the firework display block in the step 13 is dried, a layer of combustion-supporting adhesive is brushed on the surface of the firework display block. The technical scheme is adopted to help the fireworks display block to ignite.

Preferably, the side wall of the forming cavity 6 is coated with a graphite layer, an antistatic plastic film or a paraffin layer, one side of which is easy to release. By adopting the technical scheme, the arranged graphite layer and the antistatic plastic film or paraffin layer not only contribute to material demoulding.

Preferably, before or after the fire explosive block in the step 18 is dried, a layer of antistatic graphite is rolled on the outer surface of the fire explosive block. By adopting the technical scheme, the static electricity generated during carrying friction of the gunpowder blocks is reduced, and the use safety of the gunpowder blocks is improved.

Preferably, the shape, size and mass of the columnar particles produced in the same batch have an upper tolerance of 500% and a lower tolerance of 30% of the standard specification parameter error; wherein, the upper tolerance of the standard specification parameter error of the explosive block is 500 percent, the total shape, the size and the mass of a plurality of explosive blocks which are bonded together when being dried after being formed are required to be separated when in actual use.

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.

The invention has the beneficial effects that:

1. the firework emitting block and the firework display block are integrally formed through the combustion-supporting adhesive sheet, so that the firework emitting block and the firework display block are distinct and are firmly connected and are not easy to separate, the added adhesive sheet is beneficial to retarding the ignition of the firework display block during emission, and the ignition performance enhancer and the passivating agent added in the firework emitting block can be beneficial to the ignition of the firework emitting block and retarding the combustion speed of the firework display block;

2. the gunpowder block is convenient to manufacture and simple in process, can be produced in batch through the jig, and the proportion of the gunpowder of the firework emitting block and the firework display block can be basically consistent, so that the firework can be uniformly emitted and displayed in the image-text firework lattice structure;

3. the firework emitting block is made of granular emitting powder with consistent mass ratio, so that uniform emission can be carried out in the image-text firework lattice structure body, and the firework display block can be simultaneously emitted at a preset height; the firework launching block made of the granular propellant powder not only increases the use safety of the launching block, but also increases the process safety of the manufacturing process, and the increased ignition performance enhancer is beneficial to the ignition of the launching block;

4. the firework display block disclosed by the invention has the advantages that the burning time can be basically kept within the same time due to the consistent quantity of the medicines; in addition, as the firework display block adopts the blocky display powder, the firework display block is safe to use and good in combustion effect, and is beneficial to forming image-text bright spots at high altitude for a long time;

5. 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, and is suitable for wide application and popularization, so 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.

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 view of the construction of a charge block according to the present invention;

FIG. 3 is a schematic view of a first forming tool according to the present invention pressing a firework emitting block;

FIG. 4 is a schematic view of a second molding jig according to the present invention pressing a firework display block;

FIG. 5 is a schematic structural view of a third forming tool according to the present invention;

FIG. 6 is a schematic view of a shaped compression bar extrusion molding powder charge in accordance with the present invention;

fig. 7 is a schematic view of the ejector pin ejection explosive block related to the invention.

Fig. 8 is a schematic view of the ejector pin ejection explosive block related to the invention.

The reference numbers in the figures illustrate: the firework display device comprises a gunpowder block 1, a firework emitting block 2, a firework display block 3, an adhesive sheet 4, a first forming jig 5, a forming cavity 6, a forming pressing rod 7, a second forming jig 8, a third forming jig 9, a pressing plate 10, a template 11, an ejector rod 12 and a base 13.

Detailed Description

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

referring to fig. 1 to 8, the special gunpowder block for the dot matrix emitter of the image-text fireworks and the preparation method thereof comprise a gunpowder block 1 and a gunpowder block 1 preparation method, wherein the gunpowder block 1 is arranged into a columnar gunpowder block 1, and the columnar gunpowder block 1 is formed by bonding a firework emitting block 2 and a firework display block 3 through a combustion-supporting adhesive sheet 4; the combustion-supporting adhesive sheet 4 comprises an adhesive sheet 4 and an adhesive arranged on the adhesive sheet 4; 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 firework display block 3 is prepared by mixing firework display powder of conventional firework lift-off combustion in the industry, organic adhesive and passivator; the upper tolerance of the shape, the size and the quality of the columnar particles produced by the columnar gunpowder blocks 1 in the same batch is 500 percent, and the lower tolerance of the standard specification parameter error is 30 percent; the preparation method of the gunpowder block 1 used by the dot matrix emitter comprises the following steps:

preparing a firework emission block:

and 4, step 4: preparing a first forming jig 5 for forming the firework emitting block;

and 5: subpackaging the firework propellant powder particles with the adhesive on the surfaces into each molding cavity 6 of the first molding jig 5 according to the mass ratio of the firework powder block specification;

step 6: pressing the firework propellant powder in the molding cavity 6 by using a molding press rod 7 on the first molding jig 5 to press the firework propellant powder into blocks in the molding cavity 6; as shown in fig. 3;

and 7: taking out the medicine blocks in the molding cavity 6, and drying to obtain a spare firework emitting block 2;

preparation of a firework display block:

step 10: preparing a second forming jig 8 for forming the firework display block;

step 11: subpackaging flocculent firework display powder into each forming cavity 6 of a second forming jig 8 according to the mass ratio of the firework display powder in the specification;

step 12: pressing the firework display powder in the molding cavity 6 by using the molding press rod 7 on the second molding jig 8 to press the firework display powder into blocks in the molding cavity 6; as shown in fig. 4;

step 13: taking out the medicine blocks in the molding cavity 6, and drying to obtain a standby firework display block 3;

preparing a gunpowder block:

step 14: preparing a third forming jig 9 for forming the gunpowder block 1; as shown in fig. 5;

step 16: coating a layer of adhesive on two sides of the adhesive sheet 4, and respectively adhering two sides of the adhesive sheet 4 to the firework display block 3 and the firework emitting block 2;

and step 17: putting the firework display block 3 and the firework emitting block 2 stuck by the sticking sheet 4 into a forming cavity 6 of a third forming jig 9, then pressing a pressing plate 10 on the third forming jig 9 on the forming cavity 6, simultaneously pushing forming pressing rods 7 on two sides of the forming cavity 6, and pressing the firework display block 3 and the firework emitting block 2 in the forming cavity 6 on two sides of the sticking sheet 4 to form a blocky gunpowder block 1; as shown in fig. 6 and 7;

step 18: resetting a forming pressure lever 7 on a third forming jig 9, opening a pressure plate 10, then taking the extruded gunpowder block 1 out of a forming cavity 6 by using a mandril 12, and drying the adhesive sheet 4 to obtain a columnar gunpowder block 1 used by the dot matrix emitter; as shown in fig. 8 and 2;

Preferably, the first forming jig 5 and the second forming jig 8 in the

steps

4 and 10 include a base 13 and a template 11 arranged on the base 13, the template 11 is provided with a forming cavity 6, the bottom of the forming cavity 6 is provided with an ejector rod 12 connected with the base 13, and the top of the forming cavity is provided with a forming compression rod 7. The first forming fixture 5 and the second forming fixture 8 are made of ceramic or metal, and the forming fixtures made of metal are connected with the ground through wires when in use.

Preferably, the third forming jig 9 in the step 14 includes a template 11, a pressing plate 10, an ejector rod 12 and a forming press rod 7, the template 11 is provided with a forming cavity 6, two sides of the forming cavity 6 are respectively connected with the forming press rod 7, the bottom of the forming cavity is connected with the ejector rod 12, and the top of the forming cavity is connected with the pressing plate 10. The third forming jig 9 is made of ceramic or metal, and the forming jig made of metal needs to be connected with the ground by using a wire when in use.

Preferably, the adhesive wafer 4 comprises a microporous paper sheet or tissue paper or wood sheet. By adopting the technical scheme, the third forming jig 9 is favorably and firmly bonded; wherein the sticker 4 helps to delay the ignition of the fireworks display block 3; the thickness of the adhesive patch 4 is not more than 5 mm.

Preferably, the pressure of the forming press rod 7 in the

step

6, 12 or 17 in the forming cavity 6 is not more than 5 MPa.

Preferably, the percentage of the firework emitting block 2 and the firework display block 3 in the gunpowder block 1 is set to be 70-90% of the firework emitting block and 10-30% of the firework display block; 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.

Preferably, the firework display block 3 in the step 13 is brushed with a layer of combustion-supporting adhesive on the surface before or after drying. The technical scheme is adopted to help the fireworks display block 3 to ignite.

Preferably, before or after the powder block 1 is dried, a layer of antistatic graphite is rolled on the surface of the powder block 1 in the step 18. By adopting the technical scheme, the static electricity generated during carrying friction of the gunpowder block 1 is reduced, and the use safety of the gunpowder block 1 is improved.

Preferably, the shape, size and mass of the columnar particles produced in the same batch of the gunpowder block 1 have an upper tolerance of 500% and a lower tolerance of 30% of the standard specification parameter error; wherein, the upper tolerance of the standard specification parameter error of the powder block 1 is 500 percent, which is the total shape, size and mass of a plurality of powder blocks 1 bonded together when being dried after molding, and the powder blocks need to be separated when in actual use.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

In actual manufacturing, as shown in fig. 1, firstly, a conventional gunpowder granulator is used to manufacture a powdery firework propellant powder into granular firework propellant powder with consistent shape, size and quality, 99% of organic binder and 1% of ignition performance enhancer are mixed and stirred uniformly to obtain a first adhesive used by the granular firework propellant powder, and then 85% of the granular firework propellant powder and 15% of the first adhesive are sequentially added into a conventional gunpowder stirrer to be mixed and stirred, so that firework propellant powder particles with the adhesive on the surfaces are obtained after stirring; loading firework propellant powder particles with adhesive on the surfaces into a forming cavity of a first forming jig according to 85% of the mass ratio of the firework propellant powder block specification, pressing the firework propellant powder in the forming cavity by using a forming pressure rod on the first forming jig, pressing the firework propellant powder in the forming cavity into blocks, taking out the firework propellant powder blocks in the forming cavity as shown in fig. 3, and drying to obtain a spare firework propellant block; then, 3 percent of passivator and 97 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; filling flocculent firework display powder into a forming cavity of a second forming jig according to 20% of the mass ratio of the firework display powder in the specification, pressing the firework display powder in the forming cavity by using a forming pressure rod on the second forming jig, pressing the firework display powder into blocks in the forming cavity, taking out the powder blocks in the forming cavity as shown in figure 4, and drying to obtain a standby firework display block; then, mixing and stirring 90 percent of powdery organic bonding agent, 1 percent of ignition performance enhancer and 9 percent of combustion supporter uniformly to obtain the bonding agent used by the sticking piece; coating a layer of adhesive on two sides of the adhesive sheet, respectively adhering two sides of the adhesive sheet to the firework display block and the firework emitting block, putting the firework display block and the firework emitting block into a forming cavity on a third forming jig, pressing a pressing plate on the forming cavity, simultaneously pushing forming pressing rods on two sides of the forming cavity, and pressing the firework display block and the firework emitting block in the forming cavity on two sides of the adhesive sheet to form block-shaped firework blocks, as shown in fig. 6 and 7; then, the forming pressure lever is reset, the pressure plate is opened, the extruded gunpowder block 1 is taken out from the forming cavity by utilizing the ejector rod, and after the adhesive sheet is dried, a columnar gunpowder block used by the dot matrix emitter is obtained, as shown in fig. 8 and fig. 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

1. A preparation method of special gunpowder blocks for image-text firework lattice emitters comprises a preparation method of the gunpowder blocks (1) and the gunpowder blocks (1), and is characterized in that: the firework powder block (1) is arranged to be a columnar firework powder block (1), and the columnar firework powder block (1) is formed by bonding a firework emitting block (2) and a firework display block (3) through a combustion-supporting adhesive sheet (4); the combustion-supporting adhesive sheet (4) comprises an adhesive sheet (4) and an adhesive arranged on the adhesive sheet (4); 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 firework display block (3) is prepared by mixing firework display powder of the lift-off combustion of conventional fireworks in the industry, organic adhesive and passivator; the upper tolerance of the shape, the size and the quality of the columnar particles produced by the columnar gunpowder blocks (1) in the same batch is 500 percent, and the lower tolerance of the standard specification parameter error is 30 percent; the preparation method of the gunpowder block (1) used by the dot matrix emitter comprises the following steps:

preparing a firework emission block:

step 1) using a conventional gunpowder granulator to prepare the powdery firework propellant into granular firework propellant with consistent shape, size and quality;

step 2): 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 3): 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;

step 4): preparing a first forming jig (5) for forming the firework emitting block;

step 5): subpackaging the firework propellant powder particles with the adhesive on the surfaces into each forming cavity (6) of a first forming jig (5) according to the mass ratio of the firework powder block specification;

step 6): pressing the firework propellant powder in the molding cavity (6) by using a molding press rod (7) on the first molding jig (5) to press the firework propellant powder into blocks in the molding cavity (6);

step 7): taking out the medicine blocks in the molding cavity (6), and drying to obtain a spare firework emitting block (2);

preparation of a firework display block:

step 8): mixing and stirring the passivator and the organic adhesive uniformly according to the mass ratio of the standard specification to obtain a second adhesive used by the firework display powder;

step 9): 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;

step 10): preparing a second forming jig (8) for forming the firework display block;

step 11): subpackaging flocculent firework display powder into each forming cavity (6) of a second forming jig (8) according to the mass ratio of the firework display powder in the specification;

step 12): pressing the firework display powder in the molding cavity (6) by using a molding press rod (7) on a second molding jig (8) to press the firework display powder into blocks in the molding cavity (6);

step 13): taking out the medicine blocks in the molding cavity (6), and drying to obtain a spare firework display block (3);

preparing a gunpowder block:

step 14): preparing a third forming jig (9) for forming the gunpowder block (1);

step 15): mixing and stirring the organic bonding agent, the ignition performance enhancer and the combustion-supporting substance uniformly according to the mass ratio of the standard specification to obtain the bonding agent used by the sticking sheet;

step 16): coating a layer of adhesive on two sides of the adhesive sheet (4), and respectively adhering two sides of the adhesive sheet (4) to the firework display block (3) and the firework emitting block (2);

step 17): putting the firework display block (3) and the firework emitting block (2) adhered to the adhesive sheet (4) into a forming cavity (6) of a third forming jig (9), pressing a pressing plate (10) on the third forming jig (9) on the forming cavity (6), pushing forming pressing rods (7) on two sides of the forming cavity (6) simultaneously, and pressing the firework display block (3) and the firework emitting block (2) in the forming cavity (6) on two sides of the adhesive sheet (4) to form a block-shaped firework block (1);

step 18): resetting a forming pressure lever (7) on a third forming jig (9), opening a pressure plate (10), then taking out an extruded and formed gunpowder block (1) from a forming cavity 6 by using an ejector rod (12), drying an adhesive sheet (4) to obtain a columnar gunpowder block (1) used by a dot matrix emitter, setting the percentages of an organic bonding agent and an ignition performance enhancer in step 2) to be 98-99.9% and 0.1-2% respectively, setting the percentages of a firework emitting agent and a first adhesive in step 3) to be 80-95% respectively, setting the percentages of a passivator and an organic adhesive in step 8 to be 1-5% respectively, setting the percentages of an organic adhesive in 95-99% respectively, setting the percentages of a firework display agent and a second adhesive in step 9) to be 85-90% respectively, 10-15% of second adhesive, wherein the percentages of the organic binder, the ignition performance enhancer and the comburant in the step 15) are set to 88-94.5% of organic binder, 0.5-2% of ignition performance enhancer and 5-10% of comburant.

2. The preparation method of the special gunpowder block for the dot matrix emitter of the image-text fireworks as claimed in claim 1, which is characterized in that: the first forming jig (5) and the second forming jig (8) in the steps 4) and 10) comprise a base (13) and a template (11) arranged on the base (13), a forming cavity (6) is arranged on the template (11), an ejector rod (12) connected with the base (13) is arranged at the bottom of the forming cavity (6), and a forming press rod (7) is arranged at the top of the forming cavity.

3. The preparation method of the special gunpowder block for the dot matrix emitter of the image-text fireworks as claimed in claim 1, which is characterized in that: the third forming jig (9) in the step 14) comprises a template (11), a pressing plate (10), an ejector rod (12) and a forming pressing rod (7), wherein a forming cavity (6) is formed in the template (11), two sides of the forming cavity (6) are respectively connected with the forming pressing rod (7), the bottom of the forming cavity is connected with the ejector rod (12), and the top of the forming cavity is connected with the pressing plate (10).

4. The preparation method of the special gunpowder block for the dot matrix emitter of the image-text fireworks as claimed in claim 1, which is characterized in that: the drying in the step 7) or the step 13) or the step 18) adopts hot air with the temperature not exceeding 38 ℃ for circular drying.

5. The preparation method of the special gunpowder block for the dot matrix emitter of the image-text fireworks as claimed in claim 1, which is characterized in that: the comburant in the step 15) comprises one of charcoal, aluminum powder, magnesium aluminum alloy powder, sulfur and fixed powder.

6. The special gunpowder block for the dot matrix launcher of the image-text fireworks, which is prepared by the preparation method of the special gunpowder block for the dot matrix launcher of the image-text fireworks according to one of the claims 1 to 5.