1484 results about "Fireworks" patented technology

The invention discloses a device and a process for recycling perchlorate in fireworks and crackers waste, the process comprises the steps of first-stage washing, first-stage solid-liquid separation, concentration, second-stage washing, second-stage solid-liquid separation and crystallization, the separation, recovery and resource utilization of the perchlorate, aluminum powder and other substances in solid waste can be realized, meanwhile, the waste residue is subjected to innocent treatment, and the recycling of the perchlorate in the fireworks and crackers is realized. The pollution to the environment is reduced; and in the crystallization step, a low-temperature evaporation space is divided into a plurality of units, and the negative effects of overhigh evaporation temperature and sudden temperature increase of perchlorate can be effectively avoided in a manner of changing positions of the cells.

The invention relates to the technical field of digital simulation, and discloses an emergency rescue method and system based on unmanned aerial vehicles and a three-dimensional urban platform. The invention retrieves an emergency rescue regional model through the three-dimensional urban platform, drives a formation of unmanned aerial vehicles to the emergency region to obtain real-time regional information, utilizes a pre-trained accident situation image recognition algorithm, identifies accident situation characteristics such as fireworks, firefighting passage blockage, safety exit blockage, urban waterlogging, dangerous slopes, dangerous building detection, illegal construction on building roofs, river floating object identification, and high-voltage tower tilt monitoring, substitutes the accident situation characteristics into a regional three-dimensional model to generate an accident simulation model, provides real-time accident situation feedback through the accident simulation model, assists rescue personnel in making scientific rescue decisions, improves the detection efficiency of unmanned aerial vehicles through comprehensive analysis and precise simulation of the emergency rescue region, enhances the timeliness and precision of rescue, and solves the problem of low efficiency in manually collecting accident status in the prior art.

The utility model provides an explosive mixing conveying chain device for a firework inner barrel filling production line. The device comprises a water tank mechanism and a power mechanism, the water tank mechanism comprises a rack and a water tank fixedly arranged above the rack; the power mechanism comprises a power machine and a conveying chain which are respectively arranged below and above the water tank; a plurality of sliding table trolleys are detachably installed on the conveying chain, the power machine drives the conveying chain to drive the sliding table trolleys to conduct uniform-speed circular motion in the water tank, and the sliding table trolleys sequentially pass through a plurality of medicine mixing mechanisms arranged on the side edge of the water tank at equal intervals. According to the mixed medicine conveying chain device, water can be injected into the water tank, so that medicine powder and other impurities generated in the medicine mixing process fall into the water tank, and fire and explosion caused by medicine naturally are avoided; the power machine drives the conveying chain to drive the sliding table trolley, so that the whole medicine mixing and conveying process is automatic, manual intervention is reduced, the production efficiency and the yield are improved, the occupied area of equipment is small, and efficient production layout can be achieved in a limited site.

The utility model discloses a firework and cracker waste recycling system. Comprising a negative pressure adsorption treatment part, a part for separating potassium perchlorate from waste aluminum powder, a part for separating potassium perchlorate from waste residues, a part for recycling potassium perchlorate and potassium nitrate and a part for treating residues generated by all the parts. According to the firework and firecracker waste recycling system, potassium perchlorate, potassium nitrate, waste sulfur, waste aluminum powder and metal oxide in the firework and firecracker waste can be effectively recycled by recycling the firework and firecracker waste, and all the recycled waste is used as firework and firecracker raw materials after being dried. The system is good in continuity, simple to operate, low in investment cost and simple in equipment layout, and can be popularized and used.

A fuse-less ignition system for fireworks. An ignitor module is provided that is insertable into a firework and includes: a first end having an interface adapted to reside on an exterior surface of the firework for receiving a plug; a set of electrical contacts adapted to receive electricity from the plug; a heat element coupled to the electrical contacts and adapted to heat in response to received electricity; and a cavity adjacent to the heat element containing a pyrotechnic material, the pyrotechnic material adapted to ignite in response to a heating of the heat element.

The invention discloses a firework and firecracker setting-off control system and method based on geo-fencing and optical communication, and belongs to the technical field of fireworks and firecrackers, and the system comprises a mobile terminal, a firework and firecracker terminal and a cloud server; the cloud server constructs a geofence database, a product filing database and a product key library; the firework and firecracker terminal comprises a firecracker body, an electronic fuze module used for igniting the firecracker body, a firecracker terminal optical communication module used for receiving an ignition signal, and a signal processing circuit used for processing the ignition signal and controlling the electronic fuze module to start. The mobile terminal is at least provided with a satellite positioning module used for determining real-time geographic coordinates of the mobile terminal and an image acquisition module used for shooting terminal information images of fireworks and crackers to be set off; according to the method, safe setting-off and supervision of fireworks and crackers are guaranteed through satellite positioning, optical communication technologies and image recognition technologies, and the method is particularly suitable for supervision scenes in which the government defines combustion prohibited areas.

The invention discloses a coaxial rotor gun firework launching unmanned aerial vehicle system which comprises a missile-borne shell, an unmanned aerial vehicle and a foldable firework guiding launching system. The missile-borne shell mainly comprises a missile body, a missile tail and a hood; the projectile body and the projectile tail are connected through a fixing mechanism, a shell ejection mechanism is arranged in the fixing mechanism, and shell ejection and separation can be achieved when a separation signal is received. An integral structure formed by the unmanned aerial vehicle and the foldable firework guide launching system is placed in the bomb body in a folded state; the unmanned aerial vehicle is composed of a foldable nose and a fuselage. The foldable firework guiding launching system is composed of a guiding firework launching device and an airborne firework launching frame, the airborne firework launching frame comprises a firework launching tube and a foldable cross-shaped connecting rod, the firework launching tube is connected with the unmanned aerial vehicle through the foldable cross-shaped connecting rod, firework projectiles and propellant powder are contained in the firework launching tube, and the unmanned aerial vehicle carries the firework launching tube to the sky. Remote control is achieved, and fireworks are ignited and launched in an electric ignition mode.

The utility model provides a hopper assembly, an inner cylinder filling device for combined fireworks and a production line, and relates to the technical field of firework production equipment, the hopper assembly comprises a hopper structure, a material frame mechanism and a material receiving mechanism. The material frame mechanism comprises an upper flange, a first side flange, a second side flange and a first set of driving units. And the material receiving mechanism comprises a material receiving platform and a second group of driving units. When the material frame mechanism is in the initial state and the material receiving platform is located at the initial position, the upper blocking edge, the first side blocking edge, the second side blocking edge and the material receiving platform define a temporary material frame used for receiving the inner barrels, as the first side blocking edge and the second side blocking edge stretch towards the two sides, the inner barrels in the temporary material frame are flatly laid and released to the material receiving platform, and in addition, the inner barrels in the temporary material frame are placed on the material receiving platform. And the upper flange moves downwards along with the inner cylinder in the temporary material frame. And the receiving platform downwards stacks the inner barrels on the receiving platform to the bottom of the trough space. According to the hopper assembly, the inner barrels loaded by the feeding mechanism can be automatically stacked downwards, and rolling and reversing are not prone to occurring.

The utility model provides inner cylinder equipment for combined fireworks, which relates to the technical field of firework production equipment and comprises a plurality of bins and a feeding component. Wherein the plurality of stock bins are distributed at a plurality of different positions; the stock bin is provided with a trough for accommodating the inner cylinder, and is provided with a feeding hole and a blanking hole; the feeding assembly comprises a gripper and an action mechanism. And the action mechanism can drive the gripper to move so as to grab an inner cylinder cake, and can transfer the inner cylinder to any stock bin for blanking. On one hand, different types of inner barrels can be contained in the multiple stock bins, the inner barrels in all the stock bins can be flexibly configured, and the production flexibility is good; and on the other hand, the inner barrels can be conveyed to all the stock bins after inner barrel cakes are grabbed through the feeding assembly, automatic feeding can be conducted on all the stock bins, the automation degree is high, manual close-distance cake breaking feeding is not needed, and safety is higher. In addition, the plurality of stock bins are distributed at different positions, so that the harm of accidents is smaller.

The invention provides automatic discharging equipment and method for effect cylinders, and relates to the technical field of firework production equipment.The automatic discharging equipment comprises a conveying assembly, a material distributing structure, a feeding assembly and a loading assembly; the conveying assembly is provided with a conveying table capable of vertically placing the effect cylinders and can drive the effect cylinders on the conveying table to gather and move towards the front portion. The distributing structure is arranged on the conveying table and close to the front portion of the conveying table. The distributing structure is provided with a plurality of distributing channels; the plurality of shunting channels are used for shunting and outputting the effect cylinders on the conveying table; the feeding assembly comprises a movable material frame and a first driving mechanism; the movable material frame is located on the conveying table. The movable material frame is provided with a first opening side and a second opening side which are opposite; the first driving mechanism is used for driving the movable material frame to move between a first position and a second position; the loading assembly is used for loading the effect cylinder of the cylinder cake into the movable material frame; according to the automatic discharging equipment for the effect cylinder, automatic discharging can be achieved, the automation degree is high, and man-machine separation can be achieved.

A firework shell launching device comprises a gas generator and a launching tube; the upper end of the launching tube is open, and the gas generator is pressed into the launching tube from the lower end and is flush with the bottom end of the launching tube; the gas generator comprises a wire, an electric ignition head, a plugging screw, propellant, a powder cup, a pressure control chamber and a shell; the powder cup is sealed inside the pressure control chamber by the plugging screw, and the powder cup and the side wall of the pressure control chamber are interference fit; the propellant is arranged in the powder cup; the electric ignition head is arranged on the plugging screw, one end of the electric ignition head is connected to the propellant, and the other end is connected to the wire extending outside the launching tube; the utility model has the following beneficial effects: the double-layer structure of the utility model has an effective energy utilization rate, and can be moisture-proof and anti-deterioration; at the same time, it also ensures a stable exit speed, a high control accuracy of the firing height, a high launching success rate, and can be reused and can also be suitable for launching the same or different types of firework shells, effectively reducing the production cost.

The invention discloses a machining device for a combined firework interval type special-shaped cylinder row. The machining device comprises a material distributing groove for containing firework cylinders and a bearing platform which ascends and descends step by step. A plurality of guide cylinder shifting pieces are arranged above the bearing platform, each guide cylinder shifting piece is provided with a cavity channel for restraining a single firework cylinder, a limiting piece for blocking the front end of a cylinder body is arranged at the front end of each cavity channel, and the lower portion of each cavity channel is open; a telescopic supporting plate is arranged between the guide shifting cylinder piece and the bearing platform; the firework cylinders in each material distribution groove are fed into a cavity channel of each guide cylinder shifting piece, and the lower sides of the firework cylinders are supported when the supporting plates stretch out; the guiding cylinder shifting piece is hinged to the rack, the pitch changing mechanism is connected with the guiding cylinder shifting piece and drives the guiding cylinder shifting piece to swing around the hinged portion, and all firework cylinders swing along with the guiding cylinder shifting piece to obtain the special-shaped cylinder row. And the forming processing of the interval type special-shaped cylinder row can be reliably finished.

The combustible powder cold light firework effect generating device comprises a powder storage device and a heating body, and a heating cavity of the heating body is provided with a bent or spiral powder channel; the combustible powder in the powder storage device passes through the powder channel based on wind power to be heated and ignited. When combustible powder flows in a bent or spiral powder channel based on wind power, powder particle flow needs to be subjected to reversing movement, so that the friction coefficient and normal pressure between powder particles and the channel wall are greatly increased, and local high-temperature friction heat is generated. Therefore, the heating body only needs to provide a relatively low heating temperature, the combustible particles can be reliably ignited to be sprayed out under the cooperation of local high-temperature friction heat, and the cold light firework effect formed by the star body effect of combustible powder combustion is achieved.

The invention provides a fire monitoring method and system and computer equipment. The method comprises the following steps: acquiring a real-time image of a monitoring scene; calling a visual large model to analyze the real-time image, and generating fire description information of the real-time image through the visual large model under the condition that the visual large model detects that a smoke and fire target exists in the real-time image; and calling a large language model, and generating a rescue strategy according to the fire description information. According to the method, on one hand, the flame and smoke characteristics in the image can be identified by utilizing the capability of the visual large model, so that whether a fire occurs or not is accurately judged, and the false alarm rate can be effectively reduced; on the other hand, when it is judged that a fire occurs in the monitoring scene, fire description information is generated according to the real-time image. The fire description information serves as input of a large language model, and rescue suggestions are provided by means of natural language generation, inference analysis and knowledge association ability of the large language model. According to the method, the rescue action can be performed more quickly, and the rescue efficiency is improved.

The invention discloses a firework product convenient for realizing subtitle firework effect, which comprises a flexible or rigid base material, the base material is provided with a plane structure for fixing or storing pyrotechnic composition powder, and the pyrotechnic composition powder is attached to the plane structure of the base material according to set patterns or characters; the firework further comprises a fire transferring piece, the fire transferring piece is selected from a combustible base material or a firework lead, and the firework lead is distributed along the pyrotechnic composition powder attached to the base material. The pyrotechnic composition powder is one of firework powder; or one of titanium, iron, zirconium, aluminum, magnesium metal or metal oxide powder; or a mixture of more than two of the various powders. A firework visual effect with a preset subtitle pattern can be generated; the device has the advantages of simplicity in preparation, small size and convenience in use.

The invention discloses a firework and cracker hazardous waste recovery treatment method and system, and the method comprises the following steps: a wastewater treatment step: the wastewater treatment step comprises a chemical precipitation step, an A2O biochemical treatment step, a Fenton oxidation step and a BAF biological filter step, and perchlorate, COD and heavy metal are removed; the waste residue treatment step comprises a wet grinding step, a high-temperature digestion step, a flotation step, a hydraulic cyclone separation step, a wet leaching step and a fractional precipitation step, and carbon powder, titanium, barium, aluminum and magnesium resources are recycled; according to a synergistic coupling mechanism, bottom slag generated in the wastewater treatment step is conveyed to the waste slag treatment step for treatment, and filtrate generated in the waste slag treatment step is conveyed to the wastewater treatment step for treatment. The method is used for carrying out harmless treatment and resource recycling on the hazardous wastes of the fireworks and crackers.

The invention provides a firework inner barrel feeding device and method and combined firework production equipment, and relates to the technical field of firework production equipment, and the firework inner barrel feeding device comprises a first layer platform, a first pushing mechanism and a second pushing mechanism. An inner cylinder can be vertically placed on the first layer of platform, and a plurality of flow dividing channels and feeding sliding ways are arranged on the first layer of platform. The first pushing mechanism is provided with a first pushing piece used for pushing the inner cylinder and a first driving assembly. The first driving assembly is used for driving the first pushing piece to act; the first pushing piece is used for pushing the inner barrels in the feeding sliding way from the rear portions of the inner barrels to the front portions of the inner barrels so that the inner barrels in the feeding sliding way can be kept in a gathering state when sliding forwards. The second pushing mechanism comprises a second pushing piece, a protecting and holding piece and a second driving assembly; the second driving assembly is used for driving the second pushing piece and the protecting and holding piece to act; the second pushing piece and the protecting and holding piece are both located behind the first pushing piece. According to the feeding device, the inner barrel can be prevented from toppling over in the inner barrel feeding process, and the continuity of the feeding process is ensured.

The utility model discloses a firework setting-off platform with a water spraying device, and relates to the technical field of firework setting-off platforms, the firework setting-off platform comprises a ship body, a protection assembly, a mounting assembly and a water spraying fire extinguishing assembly, the upper end of the ship body is provided with a deck, the upper end of the deck is provided with a mounting plate, and the mounting plate is connected with the deck through the protection assembly; the mounting assembly is arranged at the upper end of the mounting plate, a guardrail is mounted at the upper end of the side wall of the mounting plate, and the water spraying and fire extinguishing assembly is arranged on the guardrail. Water is conveyed to the spray head through the water pump, so that the spray head sprays water to the upper end of the mounting plate, and when fireworks on the mounting plate fire, fire can be extinguished in time; and the safety of the firework setting-off platform is improved. According to the firework setting-off platform, the mounting plate and the deck are separated through the flame-retardant plate and the bottom plate, flames and high temperature can be prevented from damaging the deck and a ship body, the firework setting-off platform is protected, and the safety of the firework setting-off platform is further improved.

The invention discloses an automatic firework finished product roadway stacking device, and relates to the technical field of warehouse stacking, the automatic firework finished product roadway stacking device comprises a ground rail, a sky rail and a beam frame moving between the ground rail and the sky rail, the automatic firework finished product roadway stacking device further comprises a lifting carrier movably connected with the beam frame, and the lifting carrier is internally provided with a carrying mechanism, a brake adjusting mechanism and an elastic support; the elastic support is installed on the outer side of the lifting carrier, an elastic pressing plate is installed on the elastic support, the brake adjusting mechanism is matched with the elastic support and the carrying mechanism in an abutting mode, and when the carrying mechanism moves outwards, the brake adjusting mechanism is pressed to be clamped with the beam frame, and meanwhile the elastic pressing plate is jacked up. The carrying mechanism is arranged for grabbing, carrying and placing the finished fireworks, when the finished fireworks need to be carried, the carrying mechanism stretches out of the lifting carrier, retracts after grabbing the finished fireworks, and then is lifted to the corresponding height through the lifting carrier to enable the carrying mechanism to stack the finished fireworks on the goods shelf; and the elastic pressing plate is more flexible in use.

The utility model provides an inner cylinder cake feeding assembly and a firework filling production line, and relates to the technical field of firework production equipment, the inner cylinder cake feeding assembly comprises a stock bin, a driving device, and a grabbing mechanism and a pushing mechanism which are arranged on the driving device; the driving device is used for driving the grabbing mechanism and the pushing mechanism to move; the grabbing mechanism is used for grabbing the inner cylinder cake; the pushing mechanism comprises a pushing frame and a second driving element; the second driving element is used for driving the pushing frame to act so as to push the inner barrels clamped between the first clamping arm and the second clamping arm forwards into the stock bin when the grabbing mechanism grabs the inner barrel cakes to move to the position of a feeding port of the stock bin. By means of the driving device, the grabbing mechanism, the pushing mechanism and the inner cylinder cake feeding assembly, an inner cylinder in an inner cylinder cake can be integrally placed into the stock bin, manual operation is not needed, and safety is higher.

The utility model discloses a single-barrel small firework convenient to twist, which comprises a barrel body and a top cover arranged at the top of the barrel body, a knob is movably mounted at the bottom of the barrel body, a support is arranged at the top of the knob, a sleeve is further arranged in the barrel body, a baffle is arranged in the sleeve, a pull rod is arranged at the top of the support, a spring is sleeved on the pull rod, the pull rod penetrates through a circular groove, and a plurality of lock catches are arranged at the top of the pull rod. The spring and the lock catch are arranged and matched with the baffle to fix the sleeve, during use, only the knob needs to be rotated to drive the lock catch to rotate from the groove to the notches, at the moment, the lock catch does not limit the baffle any more, the sleeve is pushed to ascend at a high speed through the action of the spring, and the sleeve is fixed through the baffle. And a high-pressure gas tank does not need to be used, so that the problem that after a traditional firework barrel is stored for a long time, gas in the high-pressure gas tank in the traditional firework barrel overflows, and fireworks cannot be sprayed out successfully is effectively solved.

The invention discloses a firework emission accurate control method based on sensor fusion. The firework emission accurate control method comprises the following steps: S1, configuring a firework control module; s2, installing a firework control module at the top of a firework shell, and carrying out initialization; s3, collecting real-time attitude data, and performing Kalman filtering processing; s4, collecting air pressure data, and calculating the relative flight height; s5, constructing a display shell flight trajectory prediction model, and calculating a trajectory deviation value; s6, judging whether the attitude prediction value, the height prediction value and the trajectory deviation value meet requirements or not; s7, if the judgment conditions are met at the same time, an electric blasting fuse is triggered to ignite the display shell; s8, the posture prediction value, the track deviation value and the set-off state mark are sent to a multi-bullet cooperative control unit; and S9, coordinating the display shell to synchronously set off according to a preset pattern. According to the method, sensor data, Kalman filtering and a trajectory prediction modeling method are fused, display shell attitude judgment and collaborative setting-off are achieved, and the method has the advantages of being accurate, safe and high in synchronism.

The invention discloses a firework propellant containing a fluorine binder and a preparation method of the firework propellant, and belongs to the technical field of firework propellant composite materials. The preparation method comprises the following steps: dissolving Fe3O4, CuO and polyvinylpyrrolidone into a mixed solution; dissolving the RDX in an acetone solution, and adding the mixed solution to recrystallize and separate out the RDX to obtain a modified RDX explosive; under the protection of inert atmosphere, mixing aluminum powder, magnesium powder and boron powder to obtain active metal powder; adding polytetrafluoroethylene powder, modified RDX explosive and active metal powder to obtain premixed composite powder; and adding a binder fluororubber and polyvinylidene fluoride into ethyl acetate, mixing, adding the premixed composite powder, mixing, and granulating. According to the fluorine-containing binder, the burning speed of a firework propellant system can be controlled, the fluorine-containing binder has good compatibility with an energetic material system, and the product has the advantages of being free of sulfur and nitrogen, slight in smoke, resistant to high temperature, high in safety and the like.

The invention discloses a novel functional coating intelligent control method based on real-time data fusion, and the method comprises the following steps: S1, collecting multi-source environment data of a functional coating deployment region, and constructing a real-time environment state vector; s2, modeling the adjustable attributes of the functional coating into a control variable set; s3, constructing an initial control strategy set based on a brainstorm optimization algorithm, and generating a new control strategy set through a disturbance generation mechanism; s4, generating a plurality of local disturbance strategies around the reference strategy, and constructing a firework strategy set; s5, combining the new control strategy set with the firework strategy set to form a candidate control strategy complete set; s6, performing fitness calculation on the updated control strategy set; and S7, comparing the actual response vector with the expected response vector. According to the method, multi-source data fusion, control variable modeling and brainstorm optimization algorithm technologies are combined, and a novel functional coating intelligent control method based on real-time data fusion is realized.

The invention provides a method and system for evaluating the influence of setting off fireworks and crackers on PM2.5 concentration, and relates to the technical field of environmental atmospheric pollutant evaluation, and the method comprises the steps: obtaining evaluation data of each time point in a setting off period of a monitoring station, including metal ion concentration, meteorological conditions and spatial-temporal characteristics; based on the evaluation data, the PM2.5 concentration under the firework setting-off scene and the PM2.5 concentration under the firework-free setting-off scene are predicted through a firework scene model and a background reference model; and calculating the contribution rate of the set-off fireworks and crackers to the PM2.5 concentration from two aspects of a single time point and a whole set-off time period by utilizing the predicted value of the PM2.5 concentration. According to the method, based on the firework scene model and the background reference model, efficient and accurate quantitative analysis on the influence of the set-off fireworks and crackers on the PM2.5 concentration is carried out from the two aspects of the single time point and the whole set-off time period.

The utility model relates to the related technical field of combined fireworks, in particular to a fan-shaped combined firework which comprises a bottom plate, a fan-shaped frame and a semicircular plate are installed on the bottom plate, and the semicircular plate is located on the inner periphery of the fan-shaped frame. A plurality of first cylindrical inserting holes and second cylindrical inserting holes are evenly distributed in the fan-shaped frame and the semicircular plate in the circumferential direction, firework barrels are jointly inserted into the first cylindrical inserting holes and the second cylindrical inserting holes, and an abutting plate is arranged on the inner periphery of the semicircular plate to abut against the bottom ends of the firework barrels. According to the combined firework, the first cylindrical insertion hole and the second cylindrical insertion hole are formed to distribute insertion installation of the firework barrel bodies, workers can conveniently assemble the combined firework, the firework barrel bodies are convenient to select and assemble, and the use effect is better.

A computer-implemented method including scanning a radio tag incorporated into packaging of a firework product to retrieve a tag data record, the tag data record comprising a source identifier, a firework product identifier, and a universal resource identifier (URI); and at least one of: adding a product data record to a product database, the product data record comprising at least the firework product identifier, and requesting from the URI content related to the firework product.

The invention discloses a high-power multi-channel independent delay detonation control system which comprises a main controller, the main controller is connected with an integrated cabinet, a battery pack module, an inverter module and a rectifier module are arranged in the integrated cabinet, and a controller module, the battery pack module, the inverter module, the rectifier module and the controller module are connected in sequence; a heat dissipation system is arranged in the integrated cabinet, and the controller module is connected with an ignition device in the blast hole. The invention further discloses a high-power multi-channel independent delay detonating control method, the problems that existing detonating equipment is short in discharging time, small in discharging current, low in discharging power and few in output channel are solved, and the high-power multi-channel independent delay detonating control method can be widely applied to bursting balloons and detonating fireworks and crackers. And the device can also be used as detonating equipment for an explosive blasting technology, a carbon dioxide blasting technology and a liquid oxygen rock breaking technology.

The utility model discloses a filling production line for combined firework effect pieces. Comprising a first conveying line for conveying firework bodies to primer filling equipment, a second conveying line for conveying the firework bodies from the primer filling equipment to firework paper sheet filling equipment, and a third conveying line for conveying the firework bodies from the firework paper sheet filling equipment to inner cylinder filling equipment, the fourth conveying line is used for conveying the firework bodies from the inner cylinder filling equipment to the firework paper sheet filling equipment; and the tail end of the fourth conveying line and the tail end of the second conveying line are collinearly arranged. Two times of paper sheet filling are completed on the same side of the paper sheet filling equipment in a line rotation mode, effect piece filling of a single firework body or a plurality of firework bodies can be achieved, the procedure of two times of paper sheet filling is achieved through one machine, the structure is simple, control is accurate, and production efficiency is high.

1. Name of the designed product: Fireworks (Gatling). 2. Use of the designed product: for handheld fireworks. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.