Inner cylinder gunpowder filling equipment for firework production
By designing a material storage and weighing mechanism, the problem of existing equipment being unable to achieve layered filling and accurate weighing was solved, thus improving the efficiency and precision of fireworks production.
Patent Information
- Application Number
- CN202520595739.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing fireworks production equipment for filling gunpowder into inner tubes is difficult to achieve layered multi-group filling and accurate weighing, which affects production efficiency and accuracy.
An inner cylinder gunpowder filling device was designed, which includes a material storage mechanism, a drive mechanism, and a weighing mechanism. The device achieves layered material storage and quantitative discharge through a conical chamber, a sealing cover, a discharge pipe, and valves, and weighs and positions the material through springs and a weighing plate.
It enables layered filling and accurate weighing of gunpowder in the inner cylinder, improving production efficiency and filling accuracy.
Smart Images

Figure CN223826906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireworks production equipment technology, and in particular to a gunpowder filling device for the inner cylinder of fireworks production. Background Technology
[0002] Fireworks, also known as sparklers, fireworks, and firecrackers, are defined in the "China Fireworks and Firecrackers Standard - Safety and Quality" as: entertainment products made from gunpowder to produce sound, light, and color. They were invented relatively early by the Chinese working people and are often used in grand ceremonies or performances. Fireworks are actually similar in structure to firecrackers, both containing black powder and a fuse. In order to achieve good performance effects, fireworks and display shells need to be filled with a large amount of gunpowder for launching and exploding. Therefore, the production process of fireworks requires the assistance of filling equipment.
[0003] A device for filling the inner cylinder of fireworks with gunpowder, disclosed in announcement number CN217504531U, belongs to the technical field of fireworks production equipment. This device includes a base plate; a first connecting column fixedly connected to the upper end of the base plate, and a second connecting column fixedly connected to the upper end of the base plate; and a connecting mechanism comprising a connecting plate, a sliding block, a sliding block, a roller, and a connecting assembly. The connecting plate is disposed on the upper end of the base plate, the sliding block is fixedly connected to the upper end of the connecting plate, the sliding block is slidably connected to the upper part of the sliding block, and the roller is rotatably connected to the side end of the sliding block via a rotating shaft. The connecting mechanism allows the inner cylinder to be better positioned via the connecting plate and fixed in place by rollers during gunpowder filling, thus ensuring stability and improving equipment production efficiency. However, the aforementioned device struggles with layered, multi-group filling of gunpowder materials within the inner cylinder and accurate weighing of the filling material, affecting both production efficiency and filling precision. Therefore, it is necessary to develop a new gunpowder filling device for fireworks production to address these technical issues. Utility Model Content
[0004] The purpose of this invention is to improve a gunpowder filling device for fireworks production, so as to overcome the above-mentioned shortcomings in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gunpowder filling device for fireworks production, comprising: a base plate, with support columns fixedly connected to the four bottom corners of the base plate, a side plate fixedly connected to the left side of the base plate, a top plate fixedly connected to the top of the side plate, and a control panel installed in the middle of the rear end of the side plate;
[0006] The mounting box is installed in the middle of the top plate, and four sets of material storage mechanisms are installed in the middle of the mounting box. A drive mechanism is installed on the left side of the upper surface of the top plate, and a weighing mechanism is installed in the middle of the upper surface of the bottom plate. The material storage mechanism facilitates the storage of different materials that need to be filled in layers and allows for the quantitative discharge of materials in the conical hopper. The drive mechanism facilitates the rotation of the material storage mechanism, and the weighing mechanism facilitates the simultaneous weighing of the filled materials, thus improving the weighing effectiveness of this device.
[0007] As a further description of the above technical solution: the material storage mechanism includes a conical silo installed on the mounting box. The upper end of the conical silo is equipped with a sealing cover, and the bottom of the conical silo is connected to a discharge pipe. A valve is installed on one side of the discharge pipe. By setting multiple sets of conical silos, it is convenient to store different materials that need to be filled in layers. By setting a sealing cover, it is convenient to inject materials into the conical silo and to seal and protect the conical silo. By setting a discharge pipe and a valve, it is convenient to discharge materials in the conical silo in a quantitative manner.
[0008] As a further description of the above technical solution: the upper outer surface of the conical chamber is threaded, and the sealing cover has a threaded groove that matches the thread. The conical chamber and the sealing cover form a rotating connection mechanism, which facilitates the sealing and protection of the conical chamber.
[0009] As a further description of the above technical solution: the driving mechanism includes a mounting base mounted on the top plate, a motor mounted on the upper surface of the mounting base, a quarter gear connected to the power output end of the motor, a rotating shaft fixedly connected in the middle of the upper surface of the mounting box, a gear mounted on the top of the rotating shaft, and the gear meshing with the quarter gear. The motor drives the quarter gear to rotate, thereby driving the gear on the rotating shaft to rotate 90 degrees, which facilitates the sequential filling of the four sets of positioning cylinders.
[0010] As a further description of the above technical solution: the weighing mechanism includes a connecting block mounted on a base plate. Four sets of springs are inserted around the inside of the connecting block, and the connecting block has placement slots adapted to the springs. A slider is mounted on the upper end of each of the four sets of springs. A weighing plate is fixedly connected to the rear end of the slider. A positioning cylinder is mounted on the front end of the upper surface of the weighing plate. The position of the positioning cylinder is adapted to the position of the material storage mechanism. A weight sensing block is connected to the lower end of the weighing plate. Through the springs and the weighing plate, the weighing plate can compress the springs, providing weight to the weight sensing block to achieve the weighing function. By setting multiple sets of weight sensing blocks, it is convenient to weigh the filling material simultaneously, improving the weighing effectiveness of this device. Furthermore, multiple sets of inner cylinders can be filled and weighed at once, improving the production efficiency of this device. The positioning cylinder facilitates the positioning and installation of the inner cylinders used in fireworks production.
[0011] As a further description of the above technical solution: the connecting block is provided with sliders on all four sides, and the connecting block is provided with sliding grooves that are adapted to the sliders. The connecting block and the sliders form a sliding engagement connection mechanism. By forming a sliding engagement connection mechanism, the weighing plate can be moved to ensure the effectiveness of weighing.
[0012] As a further description of the above technical solution: the outer surface of the mounting box is fixedly connected with an annular locking block, and the top plate is provided with a movable locking groove adapted to the annular locking block. The mounting box and the top plate form a movable locking connection mechanism, which facilitates the rotation of the mounting box on the top plate.
[0013] This invention improves a gunpowder filling device for fireworks production. It has the following beneficial effects:
[0014] 1. By setting up a material storage mechanism, and by setting up multiple sets of conical silos, it is convenient to store different materials that need to be filled in layers. By setting up a sealing cover, it is convenient to fill the conical silos with materials and to seal and protect the conical silos. By setting up a discharge pipe and valve, it is convenient to discharge the materials in the conical silos in a quantitative manner.
[0015] 2. By setting up a weighing mechanism, through springs and weighing plates, the weighing plate can compress the springs to provide weight to the weight sensing blocks, thereby achieving the weighing function. By setting up multiple sets of weight sensing blocks, it is convenient to weigh the filling materials simultaneously, which improves the weighing effectiveness of this device. Moreover, multiple sets of inner cylinders can be filled and weighed at one time, which improves the production efficiency of this device. Attached Figure Description
[0016] Figure 1 This utility model provides a schematic diagram of the overall structure of an inner cylinder gunpowder filling device for fireworks production. Figure 1 ;
[0017] Figure 2 This utility model provides a schematic diagram of the overall structure of an inner cylinder gunpowder filling device for fireworks production. Figure 2 ;
[0018] Figure 3 This is a structural diagram showing the disassembled components of this utility model;
[0019] Figure 4 This is a schematic diagram of the material storage mechanism in this utility model;
[0020] Figure 5 This is a schematic diagram of the weighing mechanism in this utility model.
[0021] Legend:
[0022] 1. Base plate; 2. Support column; 3. Side plate; 4. Top plate; 5. Mounting box; 6. Material storage mechanism; 601. Conical silo; 602. Sealing cover; 603. Discharge pipe; 604. Valve; 7. Drive mechanism; 701. Mounting base; 702. Motor; 703. Quarter gear; 704. Rotating shaft; 705. Gear; 8. Weighing mechanism; 801. Connecting block; 802. Weighing plate; 803. Slider; 804. Spring; 805. Positioning cylinder; 806. Weight sensor block; 9. Control panel. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1, Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses a gunpowder filling device for fireworks production, which can solve the problems of existing devices being unable to fill the gunpowder production material in layers and in multiple groups, and being unable to accurately weigh the filling material, thus affecting the production efficiency and filling accuracy of the device. It includes a base plate 1, support columns 2 fixedly connected to the four bottom corners of the base plate 1, a side plate 3 fixedly connected to the left side of the base plate 1, a top plate 4 fixedly connected to the top of the side plate 3, and a control panel 9 installed in the middle of the rear end of the side plate 3.
[0025] The mounting box 5 is installed in the middle of the top plate 4. Four sets of material storage mechanisms 6 are installed in the middle of the mounting box 5. The drive mechanism 7 is installed on the left side of the upper surface of the top plate 4. The weighing mechanism 8 is installed in the middle of the upper surface of the bottom plate 1.
[0026] Working principle: The base plate 1, side plate 3, and top plate 4 facilitate the installation and use of components; the support column 2 facilitates the load-bearing support of this device; the mounting box 5 facilitates the installation and use of the material storage mechanism 6; the material storage mechanism 6 facilitates the storage of different materials that need to be filled in layers and the quantitative discharge of materials in the conical hopper 601; the drive mechanism 7 facilitates the rotation of the material storage mechanism 6; the weighing mechanism 8 facilitates the simultaneous weighing of the filled materials, improving the weighing effectiveness of this device; and the control panel 9 facilitates the control of the electrical components of this device.
[0027] Example 2, refer to Figure 3 , Figure 4 and Figure 5 This embodiment solves the problems of existing devices being unable to perform layered and multi-group filling of gunpowder production materials in the inner cylinder, and being unable to accurately weigh the filling materials, thus affecting the production efficiency and filling accuracy of the device. This gunpowder filling equipment for fireworks production also includes a material storage mechanism 6 comprising a conical chamber 601 mounted on a mounting box 5. A sealing cover 602 is mounted on the upper end of the conical chamber 601, and a discharge pipe 603 is connected to the bottom of the conical chamber 601. A valve 604 is mounted on one side of the discharge pipe 603. Threads are installed on the outer surface of the upper end of the conical chamber 601, and the sealing cover 602 has a threaded groove that matches the threads. The conical chamber 601 and the sealing cover 602 form a rotating connection mechanism. The drive mechanism 7 includes a mounting base 701 mounted on a top plate 4, a motor 702 mounted on the upper surface of the mounting base 701, and a quarter gear 703 connected to the power output end of the motor 702. A rotating shaft 704 is fixedly connected to the middle of the upper surface of the mounting box 5. A gear 705 is mounted on the top of the moving shaft 704, and the gear 705 meshes with a quarter gear 703. The weighing mechanism 8 includes a connecting block 801 mounted on the base plate 1. Four sets of springs 804 are inserted around the inside of the connecting block 801, and the connecting block 801 has placement slots that fit the springs 804. A slider 803 is mounted on the upper end of the four sets of springs 804. A weighing plate 802 is fixedly connected to the rear end of the slider 803. A positioning cylinder 80 is assembled on the front end of the upper surface of the weighing plate 802. 5. The position of the positioning cylinder 805 is adapted to the position of the material storage mechanism 6. The lower end of the weighing plate 802 is connected to the weight sensing block 806. The connecting block 801 has sliders 803 inserted on all four sides. The connecting block 801 has a sliding groove adapted to the slider 803. The connecting block 801 and the slider 803 form a sliding engagement connection mechanism. The outer surface of the mounting box 5 is fixedly connected to an annular locking block. The top plate 4 has a movable locking groove adapted to the annular locking block. The mounting box 5 and the top plate 4 form a movable engagement connection mechanism.
[0028] Working Principle: In use, this device sequentially injects different layers of materials into multiple conical chambers 601, facilitating the layered filling of the inner cylinder's gunpowder. After material is injected into the conical chambers 601, the sealing caps 602 are tightened to protect the material inside. The motor 702 is then turned on, driving the quarter gear 703 to rotate, which in turn drives the gear 705 on the rotating shaft 704 to rotate 90 degrees. This facilitates the sequential filling of the four positioning cylinders 805. After the first layer is filled, the cylinder is rotated 90 degrees, and the valve 604 on the corresponding conical chamber 601 for the second layer of material is opened, allowing for discharge. The feed tube 603 is used for layered filling, which facilitates the sequential layering of gunpowder into the inner cylinder, improving the production efficiency of the device. When the device is filling, the spring 804 and the weighing plate 802 are used to press the spring 804, which provides weight to the weight sensing block 806, thus achieving the weighing function. By setting multiple sets of weight sensing blocks 806, it is convenient to weigh the filling material at the same time, which improves the weighing effectiveness of the device. Moreover, multiple sets of inner cylinders can be filled and weighed at one time, which improves the production efficiency of the device. After the gunpowder in the inner cylinder is filled in multiple layers, it can be removed.
[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A gunpowder filling device for fireworks production, characterized in that, include: The base plate (1) has support columns (2) fixedly connected to the four corners of the bottom of the base plate (1), a side plate (3) fixedly connected to the left side of the base plate (1), a top plate (4) fixedly connected to the top of the side plate (3), and a control panel (9) installed in the middle of the rear end of the side plate (3). The mounting box (5) is installed in the middle of the top plate (4). Four sets of material storage mechanisms (6) are installed in the middle of the mounting box (5). A driving mechanism (7) is installed on the left side of the upper surface of the top plate (4). A weighing mechanism (8) is installed in the middle of the upper surface of the bottom plate (1).
2. The gunpowder filling device for fireworks production according to claim 1, characterized in that, The material storage mechanism (6) includes a conical hopper (601) installed on the mounting box (5). A sealing cover (602) is installed at the upper end of the conical hopper (601). A discharge pipe (603) is connected to the bottom of the conical hopper (601). A valve (604) is installed on one side of the discharge pipe (603).
3. The gunpowder filling device for fireworks production according to claim 2, characterized in that, The upper outer surface of the conical chamber (601) is threaded, and the sealing cover (602) has a threaded groove that matches the thread. The conical chamber (601) and the sealing cover (602) form a rotating connection mechanism.
4. The gunpowder filling device for fireworks production according to claim 1, characterized in that, The drive mechanism (7) includes a mounting base (701) mounted on the top plate (4). A motor (702) is mounted on the upper surface of the mounting base (701). A quarter gear (703) is connected to the power output end of the motor (702). A rotating shaft (704) is fixedly connected in the middle of the upper surface of the mounting box (5). A gear (705) is mounted on the top of the rotating shaft (704), and the gear (705) meshes with the quarter gear (703).
5. The gunpowder filling device for fireworks production according to claim 1, characterized in that, The weighing mechanism (8) includes a connecting block (801) mounted on a base plate (1). Four sets of springs (804) are inserted around the inside of the connecting block (801), and the connecting block (801) has a placement groove that matches the springs (804). A slider (803) is mounted on the upper end of the four sets of springs (804). A weighing plate (802) is fixedly connected to the rear end of the slider (803). A positioning cylinder (805) is mounted on the front end of the upper surface of the weighing plate (802). The position of the positioning cylinder (805) matches the position of the material storage mechanism (6). A weight sensing block (806) is connected to the lower end of the weighing plate (802).
6. The gunpowder filling device for fireworks production according to claim 5, characterized in that, The connecting block (801) has sliders (803) inserted on all four sides. The connecting block (801) has a sliding groove that matches the slider (803). The connecting block (801) and the slider (803) form a sliding engagement connection mechanism.
7. The gunpowder filling device for fireworks production according to claim 1, characterized in that, The outer surface of the mounting box (5) is fixedly connected with an annular locking block, and the top plate (4) is provided with a movable locking groove that matches the annular locking block. The mounting box (5) and the top plate (4) form a movable locking connection mechanism.
Citation Information
Patent Citations
Inner cylinder gunpowder filling equipment for firework production
CN217504531U