Firework production gunpowder filling device

By designing a gunpowder filling device that includes a base plate, a fixed plate, a support plate, a filling mechanism, a mixing mechanism, and a clamping mechanism, the problems of inaccurate gunpowder filling and poor adaptability in the prior art are solved. It achieves uniform distribution and sealing of gunpowder raw materials, reduces safety risks, and improves the practicality of the equipment.

CN224365448UActive Publication Date: 2026-06-16WANZAI HUIXINYUAN FIREWORKS MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WANZAI HUIXINYUAN FIREWORKS MFG CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing gunpowder filling devices in fireworks production are difficult to accurately add different raw materials and cannot adapt to fireworks tubes of different sizes, posing safety risks, high equipment costs, and difficult maintenance.

Method used

A gunpowder filling device was designed, comprising a base plate, a fixed plate, a support plate, a filling mechanism, a mixing mechanism, and a clamping mechanism. It utilizes a double-headed motor to drive a bevel gear transmission assembly and a rotating plate to control the feeding cylinder. Combined with the clamping mechanism, it adapts to fireworks tubes of different sizes, achieving uniform filling and sealing.

Benefits of technology

It achieves uniform distribution and sealing of gunpowder raw materials, improves filling accuracy, reduces safety risks, and enhances the practicality and adaptability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of powder filling device, disclose a powder filling device for firework production, including the bottom plate, the top rear side fixed connection of bottom plate has the fixed plate, the front side fixed connection of fixed plate has the supporting plate, the bottom of supporting plate is provided with and fills the mechanism, the top of bottom plate is provided with the mixing mechanism, the mixing mechanism is used for mixing powder, the top left side of bottom plate is provided with the clamping mechanism, the filling mechanism includes the sliding block, the top of sliding block and the bottom of supporting plate are connected with the sliding, the bottom fixed connection of sliding block has the mounting panel, in the utility model, through the mounting panel along the slide rail inside supporting plate moves left and right, makes with the different raw material of loading the discharge cylinder moves to the firework cylinder top, opens the double -end motor, makes the raw material can evenly scatter to the firework cylinder inside, reaches makes various raw materials distribution even, and keeps the function of closed, and the efficiency enhances.
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Description

Technical Field

[0001] This utility model relates to the technical field of gunpowder filling devices, and in particular to a gunpowder filling device for fireworks production. Background Technology

[0002] Fireworks, as a product that creates dazzling visual effects and adds to the festive atmosphere, are widely popular worldwide. Fireworks production is a complex and meticulous process involving numerous steps, among which gunpowder filling is a crucial one, directly affecting the quality, safety, and final ignition effect of the fireworks. Fireworks production typically includes multiple steps such as rolling the cylinder, preparing the base, mixing the powder, granulating, adding the fuse, and loading the powder. In the loading process, different types of gunpowder need to be precisely filled into different parts of the fireworks. This process not only requires accurate filling volume but also ensures uniform gunpowder distribution to ensure that the fireworks present specific colors, patterns, and sound effects as designed when ignited. Traditional fireworks production methods mostly rely on manual operation. However, due to the flammable and explosive nature of gunpowder, direct manual contact with gunpowder during filling operations poses a huge safety risk, and even a slight mistake can lead to a serious safety accident. To solve the many problems associated with manual gunpowder filling, gunpowder filling devices have emerged.

[0003] A gunpowder filling device is a mechanical device specifically designed to automatically and accurately fill gunpowder into fireworks containers. It consists of a storage mechanism, a conveying mechanism, and a filling mechanism. The storage mechanism stores a large amount of gunpowder raw materials to ensure a sufficient supply of material during the filling process. The conveying mechanism transports the gunpowder from the storage mechanism to the filling mechanism. The filling mechanism is the core of the entire device; through specific mechanical structures and actions, it precisely fills the gunpowder into the fireworks' tubes, projectiles, and other containers. Early gunpowder filling devices often resulted in overfilling or underfilling. Overfilling not only wasted gunpowder but also significantly reduced the fireworks' ignition effect, failing to achieve the expected brightness, height, and color effects. To address this... To overcome the aforementioned drawbacks, existing technologies employ various innovative structures, including rotary and vibratory types, in their filling mechanisms. Rotary filling mechanisms distribute gunpowder evenly into the container through rotation, effectively preventing gunpowder buildup in certain areas. Vibratory filling mechanisms utilize vibration principles to allow the gunpowder to flow naturally and distribute evenly within the container during the filling process. However, while existing technologies improve the accuracy and uniformity of filling, they also increase equipment costs and maintenance complexity. High-precision metering and filling mechanisms often require advanced manufacturing processes and materials, and their complex mechanical structures are prone to malfunctions during long-term operation. They cannot accurately add different raw materials and are not adaptable to fireworks tubes of different sizes. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a gunpowder filling device for fireworks production, which aims to improve the problems of existing technology that cannot accurately add different raw materials and cannot adapt to fireworks tubes of different sizes.

[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, a fixing plate fixedly connected to the top rear side of the base plate, a support plate fixedly connected to the front side of the fixing plate, a filling mechanism provided at the bottom of the support plate, a mixing mechanism provided at the top of the base plate, the mixing mechanism being used for mixing gunpowder, and a clamping mechanism provided on the top left side of the base plate.

[0006] The filling mechanism includes a slider, the top of which is slidably connected to the bottom of a support plate. A mounting plate is fixedly connected to the bottom of the slider, and a dual-head motor is fixedly connected to the top of the inner wall of the mounting plate. Transmission components are provided on both the left and right sides of the dual-head motor.

[0007] As a further description of the above technical solution:

[0008] The mixing mechanism includes a fireworks tube, the bottom of which is fixedly connected to the top of a base plate. A cover plate is provided on the top of the fireworks tube, and a sealing component is provided on the outer wall of the cover plate.

[0009] As a further description of the above technical solution:

[0010] The transmission assembly includes a first bevel gear, the inner wall of which is fixedly connected to the output end of a dual-head motor, and a second bevel gear meshing with the outer wall of the first bevel gear, the inner wall of which is provided with a connecting assembly.

[0011] As a further description of the above technical solution:

[0012] The connecting assembly includes a connecting rod, the outer wall of which is fixedly connected to the inner wall of the second bevel gear, a connecting plate is fixedly connected to the bottom of the connecting rod, and the left and right sides of the connecting plate are fixedly connected to the feed cylinder. The top of the feed cylinder is designed with a rotating assembly.

[0013] As a further description of the above technical solution:

[0014] The rotating assembly includes a rotating plate, the middle part of which is rotatably connected to the top of the feeding cylinder, and a strainer plate is fixedly connected to the bottom of the feeding cylinder.

[0015] As a further description of the above technical solution:

[0016] The sealing assembly includes a plug plate, the left side of which is fixedly connected to the outer wall of the cover plate, and the front side of the plug plate is threaded with screws.

[0017] As a further description of the above technical solution:

[0018] The clamping mechanism includes a rotating shaft, the bottom of which is rotatably connected to the top of the base plate. A clamping plate is fixedly connected to the outer wall of the rotating shaft. An arc-shaped plate is fixedly connected to the top of the base plate. A locking post is fixedly connected to the left side of the arc-shaped plate. An actuating component is provided on the outer wall of the rotating shaft.

[0019] As a further description of the above technical solution:

[0020] The actuating assembly includes a short post, the right side of which is fixedly connected to the outer wall of the rotating shaft, and the upper and lower sides of the short post are fixedly connected with retaining sleeves.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the mounting plate moves left and right along the slide rail inside the support plate, so that the feeding cylinder containing different raw materials is moved to the top of the fireworks tube. The double-headed motor is turned on, so that the first bevel gear drives the second bevel gear to rotate, and at the same time drives the feeding cylinder to rotate, so that the raw materials can be evenly sprinkled into the inside of the fireworks tube. Larger particles are screened out by the sieve plate. The rotating plate can close immediately after the raw materials are added, which achieves the function of even filling, so that the various raw materials are evenly distributed and the closed function is maintained, thus enhancing efficiency.

[0023] 2. In this utility model, the plug plates on the left and right sides of the cover plate are inserted into the plug plates on both sides of the firework tube, and screws are tightened to achieve a sealing effect. Rotating the short column allows the sleeve to engage with the plugs at different angles, enabling the clamping plate to hold firework tubes of different sizes, thus enhancing its practicality. Attached Figure Description

[0024] Figure 1 This is a perspective view of the front side of the support plate of a gunpowder filling device for fireworks production proposed in this utility model;

[0025] Figure 2 This is a partial structural exploded view of the fixing plate of a gunpowder filling device for fireworks production proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the slider of a gunpowder filling device for fireworks production proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of a fireworks tube for a gunpowder filling device used in fireworks production, as proposed in this utility model.

[0028] Figure 5 This is a partial structural diagram of the arc-shaped plate of a gunpowder filling device for fireworks production proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Filling mechanism; 201. Slider; 202. Mounting plate; 203. Dual-head motor; 204. Transmission assembly; 2041. Bevel gear one; 2042. Bevel gear two; 205. Connecting assembly; 2051. Connecting rod; 2052. Connecting plate; 2053. Feeding cylinder; 206. Rotating assembly; 2061. Rotating plate; 2062. Squeegee; 3. Mixing mechanism; 301. Firework tube; 302. Cover plate; 303. Sealing assembly; 3031. Insertion plate; 3032. Screw; 4. Clamping mechanism; 401. Rotating shaft; 402. Clamping plate; 403. Actuating assembly; 4031. Short column; 4032. Sleeve; 404. Arc plate; 405. Clamping post; 5. Fixing plate; 6. Support plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a gunpowder filling device for fireworks production, including a base plate 1, a fixing plate 5 fixedly connected to the top rear side of the base plate 1, a support plate 6 fixedly connected to the front side of the fixing plate 5, the support plate 6 being used to support and fix related components of the filling mechanism 2, the filling mechanism 2 being provided at the bottom of the support plate 6, a mixing mechanism 3 being provided at the top of the base plate 1, the mixing mechanism 3 being used to mix gunpowder, and a clamping mechanism 4 being provided on the top left side of the base plate 1, the clamping mechanism 4 being used to clamp and fix the fireworks tube 301, ensuring the stability of the fireworks tube 301 during the gunpowder filling process, preventing it from shaking or shifting, thereby ensuring the smooth progress of the filling work;

[0033] The filling mechanism 2 includes a slider 201, the top of which is slidably connected to the bottom of the support plate 6. The bottom of the slider 201 is fixedly connected to an mounting plate 202, which provides an installation position for components such as the dual-head motor 203 and serves to connect and fix them. The top of the inner wall of the mounting plate 202 is fixedly connected to the dual-head motor 203, and transmission components 204 are provided on both the left and right sides of the dual-head motor 203.

[0034] Specifically, the base plate 1 serves as the fundamental support component of the entire device, providing a stable installation platform for other components. A fixing plate 5 is fixedly connected to the top rear side of the base plate 1, serving both fixing and support functions, providing positional and structural support for the installation of subsequent components. A filling mechanism 2 is located at the bottom of the support plate 6. The main function of the filling mechanism 2 is to accurately fill various gunpowder raw materials into the fireworks tube 301. It is a core component for realizing the crucial gunpowder filling process in fireworks production. The mixing mechanism 3 is used to mix gunpowder, thoroughly mixing different types of gunpowder raw materials to meet the requirements of fireworks production for gunpowder composition. The filling mechanism 2 includes a slider 201, the top of which is connected to the support plate 6. The bottom of the support plate 6 is slidably connected, and the slider 201 can slide at the bottom of the support plate 6, thereby realizing the horizontal position adjustment of the filling mechanism 2 so as to accurately fill the gunpowder raw materials into different positions of the firework tube 301. The top of the inner wall of the mounting plate 202 is fixedly connected to a double-headed motor 203. The double-headed motor 203 serves as the power source of the filling mechanism 2, providing power to the subsequent transmission assembly 204 and driving the entire filling process. Transmission assemblies 204 are provided on both the left and right sides of the double-headed motor 203. The function of the transmission assembly 204 is to transmit the power output by the double-headed motor 203 to other components, realize the effective conversion and transmission of power, and ensure the coordinated work of all components of the filling mechanism 2.

[0035] Please see the appendix Figure 2 - Appendix Figure 3 The mixing mechanism 3 includes a fireworks tube 301. The bottom of the fireworks tube 301 is fixedly connected to the top of the base plate 1. A cover plate 302 is provided on the top of the fireworks tube 301. A sealing component 303 is provided on the outer wall of the cover plate 302. The function of the sealing component 303 is to enhance the sealing between the cover plate 302 and the fireworks tube 301, prevent gunpowder leakage, and ensure the safety and effectiveness of the mixing process. The sealing component 303 includes a plug plate 3031. The left side of the plug plate 3031 is fixedly connected to the outer wall of the cover plate 302. A screw 3032 is threadedly connected to the front side of the plug plate 3031. The screw 3032 further fixes the plug plate 3031 to the fireworks tube 301 through the threaded connection, thereby ensuring a tight connection and good sealing between the cover plate 302 and the fireworks tube 301.

[0036] Specifically, the mixing mechanism 3 includes a firework tube 301, the bottom of which is fixedly connected to the top of the base plate 1. The firework tube 301 serves as a container for gunpowder mixing, providing a relatively enclosed space for the gunpowder raw materials to facilitate mixing operations. A cover plate 302 is provided on the top of the firework tube 301. The cover plate 302 is used to seal the firework tube 301 to prevent the gunpowder raw materials from splashing out during the mixing process, and also plays a certain protective role. The sealing component 303 includes a plug-in plate 3031, the left side of which is fixedly connected to the outer wall of the cover plate 302. The plug-in plate 3031 is used to plug into the firework tube 301 to achieve the initial positioning of the cover plate 302.

[0037] Please see the appendix Figure 2 - Appendix Figure 3 The transmission assembly 204 includes a first bevel gear 2041, the inner wall of which is fixedly connected to the output end of the dual-head motor 203. A second bevel gear 2042 is meshed with the outer wall of the first bevel gear 2041. A connecting assembly 205 is provided on the inner wall of the second bevel gear 2042. The connecting assembly 205 connects and transmits power, transferring the rotational power of the second bevel gear 2042 to components such as the feed cylinder 2053. The connecting assembly 205 includes a connecting rod 2051, the outer wall of which is fixedly connected to the inner wall of the second bevel gear 2042. A connecting plate 2052 is fixedly connected to the bottom of 51. The left and right sides of the connecting plate 2052 are fixedly connected to the feeding cylinder 2053. The top of the feeding cylinder 2053 is designed with a rotating component 206. The function of the rotating component 206 is to control the feeding and discharging process of gunpowder and realize the quantitative filling of gunpowder. The rotating component 206 includes a rotating plate 2061. The middle part of the rotating plate 2061 is rotatably connected to the top of the feeding cylinder 2053. A perforated plate 2062 is fixedly connected to the bottom of the feeding cylinder 2053. The perforated plate 2062 plays the role of uniform feeding, so that the gunpowder can be uniformly filled into the firework tube 301.

[0038] Specifically, the transmission assembly 204 includes a first bevel gear 2041, the inner wall of which is fixedly connected to the output end of the dual-head motor 203. The first bevel gear 2041 transmits the rotational power output by the dual-head motor 203. Through its meshing relationship with a second bevel gear 2042, the direction of power transmission is changed. The outer wall of the first bevel gear 2041 is meshed with the second bevel gear 2042. The second bevel gear 2042 rotates under the drive of the first bevel gear 2041, further transmitting power to the connecting assembly 205. The connecting assembly 205 includes a connecting rod 2051, the outer wall of which is fixedly connected to the inner wall of the second bevel gear 2042. The connecting rod 2051 transmits the rotational power of the first bevel gear 2042 to the inner wall of the second bevel gear 2042. The gear 2042 is connected to the connecting plate 2052 to transmit power. The bottom of the connecting rod 2051 is fixedly connected to the connecting plate 2052. The connecting plate 2052 is used to fix the feeding cylinder 2053 and ensure the stability of the feeding cylinder 2053. The left and right sides of the connecting plate 2052 are fixedly connected to the feeding cylinder 2053. The feeding cylinder 2053 is a key component in the gunpowder filling process, used to store and guide gunpowder into the firework tube 301. The rotating assembly 206 includes a rotating plate 2061. The middle part of the rotating plate 2061 is rotatably connected to the top of the feeding cylinder 2053. The rotating plate 2061 can control the size of the opening at the top of the feeding cylinder 2053 by rotating, thereby controlling the amount of gunpowder fed.

[0039] Please see the appendix Figure 4 - Appendix Figure 5 The clamping mechanism 4 includes a rotating shaft 401, the bottom of which is rotatably connected to the top of the base plate 1. A clamping plate 402 is fixedly connected to the outer wall of the rotating shaft 401. An arc-shaped plate 404 is fixedly connected to the top of the base plate 1. The arc-shaped plate 404 provides an installation position for the locking post 405 and also plays a certain role in limiting and guiding. The locking post 405 is fixedly connected to the left side of the arc-shaped plate 404. A toggle assembly 403 is provided on the outer wall of the rotating shaft 401. The toggle assembly 403 includes a short post 4031. The short post 4031 serves as a toggle operation component, which facilitates manual operation by the operator. The right side of the short post 4031 is fixedly connected to the outer wall of the rotating shaft 401. Sleeves 4032 are fixedly connected to both the upper and lower sides of the short post 4031.

[0040] Specifically, the clamping mechanism 4 includes a rotating shaft 401, the bottom of which is rotatably connected to the top of the base plate 1. The rotating shaft 401 acts as a rotating component of the clamping mechanism 4, allowing the clamping plate 402 to rotate around the shaft 401, thereby clamping and releasing the firework tube 301. The clamping plate 402 is fixedly connected to the outer wall of the rotating shaft 401, directly contacting the firework tube 301. Through its rotation and position adjustment, the firework tube 301 is clamped and fixed. A locking pin 405 is fixedly connected to the left side of the arc-shaped plate 404. The locking pin 405 cooperates with the actuating component 403 to achieve the clamping of the clamping plate 401. The fixed position of the 02 ensures stable clamping of the firework tube 301. The outer wall of the rotating shaft 401 is provided with a toggle component 403. The function of the toggle component 403 is to change the position of the rotating shaft 401 and the clamping plate 402 by manually toggle, so as to realize the clamping and releasing operation of the firework tube 301. The upper and lower sides of the short column 4031 are fixedly connected with the sleeve 4032. The sleeve 4032 cooperates with the clamping column 405. When the clamping plate 402 rotates to the appropriate position, the sleeve 4032 can be locked on the clamping column 405, thereby fixing the position of the clamping plate 402 and ensuring stable clamping of the firework tube 301.

[0041] Working principle: The mounting plate 202 moves left and right along the slide rail inside the support plate 6, moving the feeding cylinder 2053 containing different raw materials to the top of the fireworks tube 301. The dual-head motor 203 is turned on, causing the first bevel gear 2041 to drive the second bevel gear 2042 to rotate, which in turn drives the feeding cylinder 2053 to rotate, so that the raw materials can be evenly sprinkled into the fireworks tube 301. Larger particles are screened out by the sieve plate 2062. The rotating plate 2061 can close immediately after adding raw materials, achieving the function of uniform filling, uniform distribution of various raw materials, and maintaining a closed function, thus enhancing efficiency.

[0042] The plug plates 3031 on the left and right sides of the cover plate 302 are inserted into the plug plates 3031 on both sides of the firework tube 301, and screws 3032 are tightened to achieve a sealing effect. The short column 4031 is rotated so that the sleeve 4032 engages with the clamping column 405 at different angles, so that the clamping plate 402 can clamp firework tubes 301 of different sizes, thus enhancing its practicality.

[0043] 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 gunpowder filling device for fireworks production, comprising a base plate (1), characterized in that: A fixing plate (5) is fixedly connected to the rear top of the base plate (1), a support plate (6) is fixedly connected to the front side of the fixing plate (5), a filling mechanism (2) is provided at the bottom of the support plate (6), a mixing mechanism (3) is provided at the top of the base plate (1), the mixing mechanism (3) is used to mix gunpowder, and a clamping mechanism (4) is provided on the left side of the top of the base plate (1). The filling mechanism (2) includes a slider (201), the top of which is slidably connected to the bottom of the support plate (6), and a mounting plate (202) is fixedly connected to the bottom of the slider (201). A double-headed motor (203) is fixedly connected to the top of the inner wall of the mounting plate (202), and a transmission assembly (204) is provided on both the left and right sides of the double-headed motor (203).

2. The gunpowder filling device for fireworks production according to claim 1, characterized in that: The mixing mechanism (3) includes a firework tube (301), the bottom of which is fixedly connected to the top of the base plate (1), and a cover plate (302) is provided on the top of the firework tube (301). A sealing component (303) is provided on the outer wall of the cover plate (302).

3. The gunpowder filling device for fireworks production according to claim 1, characterized in that: The transmission assembly (204) includes a bevel gear one (2041), the inner wall of the bevel gear one (2041) is fixedly connected to the output end of the dual-head motor (203), the outer wall of the bevel gear one (2041) is meshed with a bevel gear two (2042), and the inner wall of the bevel gear two (2042) is provided with a connecting assembly (205).

4. The gunpowder filling device for fireworks production according to claim 3, characterized in that: The connecting assembly (205) includes a connecting rod (2051), the outer wall of which is fixedly connected to the inner wall of the bevel gear (2042), a connecting plate (2052) is fixedly connected to the bottom of the connecting rod (2051), and the left and right sides of the connecting plate (2052) are fixedly connected to the feed cylinder (2053). The top of the feed cylinder (2053) is designed with a rotating assembly (206).

5. A gunpowder filling device for fireworks production according to claim 4, characterized in that: The rotating assembly (206) includes a rotating plate (2061), the middle part of which is rotatably connected to the top of the feed cylinder (2053), and a drain plate (2062) is fixedly connected to the bottom of the feed cylinder (2053).

6. A gunpowder filling device for fireworks production according to claim 2, characterized in that: The sealing assembly (303) includes a plug plate (3031), the left side of which is fixedly connected to the outer wall of the cover plate (302), and the front side of the plug plate (3031) is threaded with a screw (3032).

7. A gunpowder filling device for fireworks production according to claim 1, characterized in that: The clamping mechanism (4) includes a rotating shaft (401), the bottom of which is rotatably connected to the top of the base plate (1), a clamping plate (402) is fixedly connected to the outer wall of the rotating shaft (401), an arc plate (404) is fixedly connected to the top of the base plate (1), a locking post (405) is fixedly connected to the left side of the arc plate (404), and a toggle assembly (403) is provided on the outer wall of the rotating shaft (401).

8. A gunpowder filling device for fireworks production according to claim 7, characterized in that: The actuation assembly (403) includes a short post (4031), the right side of which is fixedly connected to the outer wall of the rotating shaft (401), and the upper and lower sides of the short post (4031) are fixedly connected with sleeves (4032).