Precise weighing and distributing device for firework powder
By designing a precise weighing and dispensing device, and using a controller and motor to control the screw feeder and a flow meter to monitor the materials, the problem of inaccurate fireworks agent formulations is solved, achieving high-precision dispensing and safety assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WANZAI HONGTIAN FIREWORKS MFG CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-04-21
AI Technical Summary
Inaccurate proportions of fireworks powder formulations may lead to unstable combustion or explosion, posing safety hazards. Existing technologies make it difficult to achieve precise weighing and distribution.
Design a precise weighing and dispensing device for fireworks agents. Utilize a controller to precisely control the motor and screw feeder, and combine a load cell and flow meter to monitor the material delivery volume to ensure accurate agent dispensing. Equipped with a fire extinguishing gas system to prevent fires.
It achieves high precision and efficiency in reagent preparation, reduces human error, improves safety and stability, and can extinguish flames in a timely manner, ensuring the safety of equipment and personnel.
Smart Images

Figure CN224151554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireworks agent preparation technology, and in particular to a precise weighing and dispensing device for fireworks agents. Background Technology
[0002] Fireworks chemicals are special chemical mixtures used to manufacture fireworks. Their main function is to produce dazzling visual effects and loud sounds when ignited. The core components of fireworks chemicals typically include oxidizers, reducing agents (fuel), and colorants. Oxidizers such as potassium nitrate or potassium perchlorate provide oxygen, allowing the fuel to burn even in an oxygen-deficient environment. Reducing agents are usually sulfur, charcoal, or other organic compounds that react with the oxidizer to release energy. Colorants determine the color of the fireworks; for example, copper compounds produce blue, and sodium compounds produce yellow.
[0003] Fireworks chemicals are highly flammable and explosive mixtures. If the formula ratio is inaccurate, especially if the ratio of oxidizer and reducing agent is unbalanced, it may lead to unstable combustion or even accidental explosion, threatening the lives of production personnel. If certain chemical components are in excess or insufficient, they may change the reaction conditions, leading to uncontrolled reactions and unpredictable results.
[0004] Therefore, it is necessary to design a precise weighing and dispensing device for fireworks agents to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a precise weighing and dispensing device for fireworks agents.
[0006] The technical solution is as follows: A precise weighing and dispensing device for fireworks agents includes a frame, a controller, a guide frame, a slide, a load cell, a storage bin, and a material bin. The frame is placed on the ground. The controller is fixedly connected to one side of the front of the frame. The guide frames are fixedly connected to both sides of the lower part of the frame. A slide is slidably connected between the two guide frames. The load cell is fixedly connected to the top of the slide. The storage bin is placed on the load cell. Handles are fixedly provided on both sides of the top of the storage bin. The material bin is fixedly connected to the upper part of the frame. A discharge pipe is fixedly provided at the bottom of the material bin. The device also includes a first motor, a rotating shaft, a spiral feeding rod, and a flow meter. The first motor is fixedly connected to one side of the top of the material bin. The first motor is electrically connected to the controller. The output shaft of the first motor passes through the material bin and is fixedly connected to the rotating shaft. The spiral feeding rod located inside the discharge pipe is fixedly connected to the lower part of the rotating shaft. The discharge pipe is connected to and communicates with the flow meter at the bottom. The flow meter is electrically connected to the controller.
[0007] As an improvement to the above solution, the diameter of the screw feeder is adapted to the inner diameter of the discharge pipe.
[0008] As an improvement to the above solution, the lower structure of the material hopper is inclined.
[0009] As an improvement to the above solution, a sealing cap is also included, with a feed pipe fixedly installed on one side of the top of the material barrel, and a sealing cap placed on the top of the feed pipe.
[0010] As an improvement to the above solution, it also includes a second motor and a screw. The second motor is fixedly connected to the rear of the frame and is electrically connected to the controller. The output shaft of the second motor passes through the frame and is fixedly connected to the screw, which is threadedly connected to the carriage.
[0011] As an improvement to the above solution, it also includes air tanks, pressure gauges and nozzles. Air tanks are symmetrically fixedly connected to both sides of the frame. Each air tank is connected to and connected to a pressure gauge on its top. The tops of the two pressure gauges on the same side are connected to and connected to a nozzle. The two nozzles are electrically connected to the controller. The two nozzles are located between the storage tanks and are symmetrically distributed.
[0012] The beneficial effects are as follows: 1. This utility model uses a controller to precisely set and adjust the speed of the first motor, uses a screw feeder and flow meter to ensure the accuracy of material conveying, and uses a load cell to monitor the weight of the collection bucket in real time, ensuring accurate batching, reducing human error, improving batching accuracy and work efficiency, and ensuring the safety and stability of operation.
[0013] 2. This utility model starts the second motor through the controller, and its output shaft drives the screw to rotate, so that the carriage moves precisely to the designated position along the guide frame, ensuring that the material falls accurately into the collection bucket, avoiding spillage, improving the accuracy and efficiency of material conveying, reducing manual intervention, reducing the difficulty of operation and the error rate, and is suitable for efficient batching operations under various complex working conditions.
[0014] 3. This utility model monitors the operating status in real time through a controller. Once a fire risk is detected, the gas tank is immediately activated and the fire extinguishing gas is released through the nozzle to quickly extinguish the flames and ensure the safety of equipment and personnel. The pressure gauge continuously monitors the pressure in the gas tank to ensure that the fire extinguishing gas is always available, thereby improving the safety and reliability of the system and effectively preventing and controlling potential dangers. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the frame, controller, and guide frame of this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the frame, second motor, screw, and other components of this utility model.
[0018] Figure 4This is a three-dimensional structural diagram of the components of this utility model, including the gas tank, pressure gauge, and nozzle.
[0019] In the attached diagram, the following are the reference numerals: 1_frame, 2_controller, 3_guide frame, 4_slide carriage, 5_load indicator, 6_storage bin, 7_material bin, 8_first motor, 9_rotating shaft, 10_screw feeder, 11_flow meter, 12_sealing cover, 13_second motor, 14_screw, 15_air tank, 16_pressure gauge, 17_nozzle. Detailed Implementation
[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0021] Example: A precise weighing and dispensing device for fireworks agents, such as... Figures 1-4 As shown, the system includes a frame 1, a controller 2, guide frames 3, a slide 4, a load cell 5, a storage bin 6, a material bin 7, a first motor 8, a rotating shaft 9, a screw feeder 10, a flow meter 11, and a sealing cover 12. The frame 1 is placed on the ground. The controller 2 is screwed onto the front right side of the frame 1. Guide frames 3 are welded to the left and right sides of the lower part of the frame 1. A slide 4 is slidably connected between the two guide frames 3. The load cell 5 is screwed onto the top of the slide 4. The storage bin 6 is placed on top of the load cell 5. Handles are welded to the left and right sides of the top of the storage bin 6. The material bin 7 is screwed onto the upper part of the frame 1. The lower part of the material barrel 7 is inclined. The lower part of the material barrel 7 is connected to and connected to the discharge pipe. The first motor 8 is installed on the rear side of the top of the material barrel 7 by screws. The first motor 8 is electrically connected to the controller 2. The output shaft of the first motor 8 passes through the material barrel 7 and is welded to the rotating shaft 9. The lower end of the rotating shaft 9 is welded to the spiral feeding rod 10 located inside the discharge pipe. The diameter of the spiral feeding rod 10 is suitable for the inner diameter of the discharge pipe. The lower end of the discharge pipe is connected to and connected to the flow meter 11. The flow meter 11 is electrically connected to the controller 2. The top right side of the material barrel 7 is fixedly connected to and connected to the feed pipe. A sealing cap 12 is placed on the top of the feed pipe.
[0022] When this device is needed, place the frame 1 securely on the ground, check that all connections are secure, open the sealing cover 12 upwards, add the required medicine into the feed tank 7 through the feed pipe, then close the sealing cover 12 downwards, ensure that the storage tank 6 is correctly placed on the load cell 5, and zero the load cell 5 reading. Start the controller 2, set the required dosage and other parameters, and the controller 2 starts the first motor 8 according to the preset parameters to begin the medicine delivery process. The output shaft of the first motor 8 drives the rotating shaft 9 to rotate, and the spiral feed rod 10 on the rotating shaft 9 feeds the medicine from... The agent is pushed from the material bucket 7 to the discharge pipe, and enters the flow meter 11 through the discharge pipe. The flow meter 11 monitors and feeds back the agent flow rate to the controller 2 in real time. The controller 2 adjusts the speed of the first motor 8 according to the set value to ensure accurate agent delivery. When the set dosage is reached, the controller 2 stops the first motor 8, and the agent delivery ends. The operator can use the load cell 5 to confirm whether the actual dosage meets the requirements. If necessary, fine-tuning can be made. Finally, the collection bucket 6 is removed and the equipment is cleaned. If it is necessary to weigh the ingredients again, the above operation can be repeated.
[0023] like Figure 3 As shown, it also includes a second motor 13 and a screw 14. The second motor 13 is installed on the rear side of the frame 1 by screws. The second motor 13 is electrically connected to the controller 2. The output shaft of the second motor 13 passes through the frame 1 and is welded to the screw 14. The screw 14 is threadedly connected to the slide 4.
[0024] When the position of the storage bucket 6 needs to be adjusted, the second motor 13 is started by the controller 2. The output shaft of the second motor 13 drives the screw 14 to rotate, so that the slide 4 moves up and down along the guide frame 3 to the designated position. This ensures that the medicine falls accurately into the storage bucket 6 and avoids spillage.
[0025] like Figure 1 and Figure 4 As shown, it also includes gas cylinders 15, pressure gauges 16, and nozzles 17. Gas cylinders 15 for storing fire extinguishing gas are symmetrically installed on both the front and rear sides of the frame 1 by screws. Each gas cylinder 15 is connected to and connected to a pressure gauge 16 at its top. The tops of two pressure gauges 16 on the same side are connected to and connected to a nozzle 17. The two nozzles 17 are electrically connected to the controller 2. The two nozzles 17 are located between the storage tanks 6 and are symmetrically distributed on the left and right.
[0026] During operation, if an abnormal situation occurs, the controller 2 will immediately activate the gas tank 15 and release the fire extinguishing gas through the nozzle 17 to quickly extinguish the flames and ensure the safety of the equipment and personnel. The pressure gauge 16 monitors the pressure inside the gas tank 15 in real time to ensure that the fire extinguishing gas is available at any time.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A precise weighing and dispensing device for fireworks agents, comprising a frame (1), a controller (2), a guide frame (3), a slide (4), a load cell (5), a storage bin (6), and a material bin (7), wherein the frame (1) is placed on the ground, the controller (2) is fixedly connected to one side of the front of the frame (1), the guide frames (3) are fixedly connected to both sides of the lower part of the frame (1), the slide (4) is slidably connected between the two guide frames (3), the load cell (5) is fixedly connected to the top of the slide (4), the storage bin (6) is placed on the load cell (5), the storage bin (6) is fixedly provided on both sides of the top of the storage bin (6), the material bin (7) is fixedly connected to the upper part of the frame (1), and the material bin (7) is fixedly provided with a discharge pipe at the lower part of the material bin (7), characterized in that, It also includes a first motor (8), a rotating shaft (9), a screw feed rod (10) and a flow meter (11). The first motor (8) is fixedly connected to one side of the top of the material bucket (7). The first motor (8) is electrically connected to the controller (2). The output shaft of the first motor (8) is inserted into the material bucket (7) and fixedly connected to the rotating shaft (9). The lower part of the rotating shaft (9) is fixedly connected to the screw feed rod (10) located inside the discharge pipe. The lower part of the discharge pipe is connected to and communicates with the flow meter (11). The flow meter (11) is electrically connected to the controller (2).
2. The fireworks agent precise weighing and dispensing device according to claim 1, characterized in that, The diameter of the spiral feed rod (10) is suitable for the inner diameter of the discharge pipe.
3. The fireworks agent precise weighing and dispensing device according to claim 2, characterized in that, The lower structure of the material bucket (7) is inclined.
4. The fireworks charge precision weighing and dispensing device according to claim 3, characterized in that, It also includes a sealing cap (12), and a feed pipe is fixed on one side of the top of the material barrel (7), with a sealing cap (12) placed on the top of the feed pipe.
5. The fireworks agent precise weighing and dispensing device according to claim 4, characterized in that, It also includes a second motor (13) and a screw (14). The second motor (13) is fixedly connected to the rear of the frame (1). The second motor (13) is electrically connected to the controller (2). The output shaft of the second motor (13) passes through the frame (1) and is fixedly connected to the screw (14). The screw (14) is threadedly connected to the slide (4).
6. The fireworks agent precise weighing and dispensing device according to claim 5, characterized in that, It also includes an air tank (15), a pressure gauge (16) and a nozzle (17). The air tanks (15) are symmetrically fixed on both sides of the frame (1). Each air tank (15) is connected to and connected to a pressure gauge (16) on its top. The two pressure gauges (16) on the same side are connected to and connected to a nozzle (17) on their tops. The two nozzles (17) are electrically connected to the controller (2). The two nozzles (17) are located between the storage tank (6) and are symmetrically distributed.