Scraper type firework inner cylinder gunpowder filling equipment
By designing a scraper-type fireworks inner tube gunpowder filling device, which uses a combination of cylinders and scrapers to achieve automated gunpowder filling, the problem of slow manual filling speed is solved and the filling efficiency is improved.
Patent Information
- Application Number
- CN202520182553.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-06
AI Technical Summary
In existing technologies, the gunpowder filling process in the inner tube of fireworks relies on manual operation, resulting in a slow filling speed and making it impossible to achieve efficient automation.
Design a scraper-type fireworks inner tube gunpowder filling device, which uses a cylinder and scraper to automatically fill gunpowder. The scraper feeds the gunpowder into the discharge hole and the pressing plate presses it into the fireworks inner tube. Combined with a PLC controller, it realizes automatic control.
The process of automating the loading of gunpowder into the inner tube of fireworks has been realized, significantly improving the loading speed and saving loading time.
Smart Images

Figure CN223841062U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireworks, specifically a scraper-type fireworks inner tube gunpowder filling device. Background Technology
[0002] In the production of combination fireworks, the gunpowder is usually filled into the inner tube manually. With technological advancements, automated equipment is gradually being used to assist in the gunpowder filling process, thereby speeding up the process. However, currently, the gunpowder filling process still typically involves manual insertion of the gunpowder into the inner tube, followed by machine pressing it down. Utility Model Content
[0003] The present invention aims to provide a scraper-type fireworks inner tube gunpowder filling device to achieve an automated gunpowder filling method.
[0004] To solve the above technical problems, the specific solution adopted by this utility model is as follows:
[0005] A scraper-type fireworks inner tube gunpowder filling device includes a mounting frame with supporting legs, a mounting box for filling gunpowder on the mounting frame, a mixing device for filling the gunpowder inside the mounting box on the top of the mounting box, a mounting rod on the mounting frame, a first cylinder on one side of the mounting rod, a push rod driven by the first cylinder on the other side of the mounting rod, connecting rods on both sides of the push rod, grooves on both sides of the mounting box, a rotating rod located inside the groove between the connecting rods, a scraper on the rotating rod for scraping the gunpowder at the bottom of the mounting box, a third cylinder on the top of the mounting box, the output shaft of the third cylinder passing through the top of the mounting box, a pressing plate at the bottom of the output shaft of the third cylinder, pressing rods distributed at the bottom of the pressing plate, a discharge hole at the bottom of the mounting box for inserting the pressing rods, and a fireworks inner tube placed below the mounting box. The gunpowder in the mounting box is scraped into the fireworks inner tube by the scraper through the discharge hole and then pressed into the interior of the fireworks inner tube by the pressure of the pressing rods.
[0006] A second cylinder is provided on one side of the connecting rod, and the rotating rod extends outward on one side. A connecting block is provided on the extended end of the rotating rod, and a groove is provided on the top of the connecting block. A rotating shaft is provided on the inner wall of the groove, and a connecting pipe is provided on the rotating shaft that is connected to the output shaft of the second cylinder. The rotating rod is driven by the second cylinder to rotate around its own circumference.
[0007] The scraper includes a first scraper and a second scraper, and the first scraper and the second scraper are in an inverted L-shaped structure with the rotating rod as the junction point.
[0008] The mounting bracket is equipped with a PLC controller to control the operation of the first cylinder, the second cylinder, and the third cylinder.
[0009] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:
[0010] By installing a scraper inside the mounting box and a first cylinder on the mounting frame, the scraper is driven by the cooperation of the first cylinder, push rod, and connecting rod, thereby loading the gunpowder inside the mounting box into the discharge hole and the inner tube of the fireworks. A third cylinder at the top of the mounting box drives the pressing plate and pressing rod to press down, forcing the gunpowder into the inner tube of the fireworks, thus completing the loading process. This utility model, through scraper-type gunpowder loading, greatly saves the loading time of gunpowder, making the loading of gunpowder into the inner tube of fireworks much faster. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the mechanism of this utility model;
[0012] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0013] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0014] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model;
[0015] Figure 5 This is an enlarged schematic diagram of the structure at point B of this utility model;
[0016] Reference numerals: 1. Mounting frame; 2. Mixing device; 3. First cylinder; 4. Mounting rod; 5. Mounting box; 6. Push rod; 7. Connecting rod; 8. Second cylinder; 9. Connecting pipe; 10. Third cylinder; 11. Connecting block; 12. Rotating shaft; 13. Rotating rod; 14. First scraper; 15. Second scraper; 16. Pressing plate; 17. Pressing rod; 18. Discharge hole; 19. Firework inner tube. Detailed Implementation
[0017] like Figures 1-5As shown, a scraper-type fireworks inner tube gunpowder filling device includes a mounting frame 1 with supporting legs. The mounting frame 1 has a mounting box 5 for filling gunpowder. The top of the mounting box 5 has a mixing device 2 for filling the gunpowder inside the mounting box 5. The mounting frame 1 has a mounting rod 4. One side of the mounting rod 4 has a first cylinder 3, and the other side of the mounting rod 4 has a push rod 6 driven by the first cylinder 3. Connecting rods 7 are provided on both sides of the push rod 6. Slide grooves are opened on both sides of the mounting box 5. A rotating rod 13 located inside the slide grooves is provided between the connecting rods 7. The rotating rod 13 is equipped with... A scraper scrapes the gunpowder at the bottom of the mounting box 5. A third cylinder 10 is located at the top of the mounting box 5, with its output shaft passing through the top. A pressing plate 16 is located at the bottom of the output shaft, and pressing rods 17 are distributed at the bottom of the pressing plate 16. A discharge hole 18 is located at the bottom of the mounting box 5 for inserting the pressing rods 17. A fireworks inner tube 19 is placed below the mounting box 5. The gunpowder inside the mounting box 5 is scraped into the discharge hole 18 by the scraper and then pressed into the fireworks inner tube 19 by the pressure of the pressing rods 17. Figure 5 As shown, a second cylinder 8 is provided on one side of the connecting rod 7, and one side of the rotating rod 13 extends outward. A connecting block 11 is provided on the extended end of the rotating rod 13. A groove is provided on the top of the connecting block 11, and a rotating shaft 12 is provided on the inner wall of the groove. A connecting pipe 9 connected to the output shaft of the second cylinder 8 is provided on the rotating shaft 12. The rotating rod 13 is driven by the second cylinder 8 to rotate around its own circumference. The scraper includes a first scraper 14 and a second scraper 15. The first scraper 14 and the second scraper 15 are in an inverted L-shaped structure with the rotating rod 13 as the junction point. By rotating the rotating rod 13, when the scraper reaches the limit position, it rotates again, thereby scraping the gunpowder back into the discharge hole 18 in the opposite direction. Figures 1-5 As shown, the bottom sides of the mounting box 5 have an arc-shaped structure. After the gunpowder in the mixing device 2 is mixed, it enters the mounting box 5. At this time, the first cylinder 3 is controlled by the PLC controller. The first cylinder 3 drives the push rod 6 to move, thereby driving the scraper to work. The mounting frame 1 is equipped with a PLC controller to control the first cylinder 3, the second cylinder 8 and the third cylinder 10 to work. It should be noted that the mixing device 2 is existing technology, used to mix gunpowder and then send it into the mounting box 5. Its specific structure is not directly related to this solution and will not be described in detail here.
[0018] The method of using this utility model is briefly described as follows:
[0019] After the mixing device 2 has mixed the gunpowder, it is fed into the mounting box 5. Once the gunpowder enters the mounting box 5, the PLC controller controls the first cylinder 3 to operate. The output shaft of the first cylinder 3 pushes the push rod 6 to move. The push rod 6 drives the inner pressing rod 7 and the rotating rod 13 to move. When the rotating rod 13 moves inside the chute, it drives the scraper to operate. The scraper moves the gunpowder inside the mounting box 5 along its bottom, thereby feeding the gunpowder into the discharge hole 18. After entering the discharge hole 18, the gunpowder falls into the inner tube 19 of the fireworks. When the scraper moves to its limit position, the PLC controller controls the second cylinder 8 to work. The second cylinder 8 pulls the connecting pipe 9 to move. Since the connecting pipe 9 and the connecting block 11 are rotatably connected through the rotating shaft 12, the connecting pipe 9 can drive the connecting block 11 to rotate, thereby driving the rotating rod 13 to rotate, causing the scraper to rotate 90°, thus scraping the gunpowder back into the inner tube 19 of the fireworks, thereby realizing the continuous filling of gunpowder. When the gunpowder enters the discharge hole 18, the third cylinder 10 can drive the pressing plate 16 to move downward, so that the pressing rod 17 on the pressing plate 16 will press the gunpowder through the discharge hole 18 into the inner tube 19 of the fireworks, thereby completing the filling work.
Claims
1. A scraper-type fireworks inner tube gunpowder filling device, characterized in that: The device includes a mounting frame (1) with supporting legs, a mounting box (5) for filling gunpowder on the mounting frame (1), a mixing device (2) for filling the gunpowder inside the mounting box (5) on the top of the mounting box (5), a mounting rod (4) on the mounting frame (1), a first cylinder (3) on one side of the mounting rod (4), a push rod (6) for driving the first cylinder (3) on the other side of the mounting rod (4), connecting rods (7) on both sides of the push rod (6), a sliding groove on both sides of the mounting box (5), a rotating rod (13) located inside the sliding groove between the connecting rods (7), and a device for controlling the filling of the mounting box (5) on the rotating rod (13). The scraper scrapes the gunpowder at the bottom. The top of the mounting box (5) is equipped with a third cylinder (10). The output shaft of the third cylinder (10) passes through the top of the mounting box (5). The bottom of the output shaft of the third cylinder (10) is equipped with a pressing plate (16). The bottom of the pressing plate (16) is equipped with pressing rods (17). The bottom of the mounting box (5) is equipped with a discharge hole (18) for the pressing rods (17) to be inserted. The inner tube of the fireworks (19) is placed below the mounting box (5). The gunpowder in the mounting box (5) is scraped into the discharge hole (18) by the scraper and enters the inner tube of the fireworks (19). After being pressed into the inner tube of the fireworks (19) by the pressure of the pressing rods (17), it is pressed into the inner tube of the fireworks (19).
2. The scraper-type fireworks inner tube gunpowder filling device according to claim 1, characterized in that: A second cylinder (8) is provided on one side of the connecting rod (7), and one side of the rotating rod (13) extends outward. A connecting block (11) is provided on the extended end of the rotating rod (13). A groove is provided on the top of the connecting block (11). A rotating shaft (12) is provided on the inner wall of the groove. A connecting pipe (9) connected to the output shaft of the second cylinder (8) is provided on the rotating shaft (12). The rotating rod (13) is driven by the second cylinder (8) to rotate around its own circumference.
3. The scraper-type fireworks inner tube gunpowder filling device according to claim 2, characterized in that: The scraper includes a first scraper (14) and a second scraper (15), and the first scraper (14) and the second scraper (15) are in an inverted L-shaped structure with the rotating rod (13) as the junction point.
4. The scraper-type fireworks inner tube gunpowder filling device according to claim 2, characterized in that: The mounting bracket (1) is equipped with a PLC controller to control the first cylinder (3), the second cylinder (8) and the third cylinder (10) to work.