Combination firework cylinder bright bead filling device

Abstract

The utility model relates to the technical field of firework processing equipment, and discloses a combined firework cylinder bright bead filling device which comprises a rack, a conveying belt installed on the inner side of the rack, a portal frame arranged on the top of the rack, a discharging assembly arranged on the inner side of the portal frame, a discharging box arranged on one side of the top of the portal frame, and a separating mechanism arranged on one side of the discharging box. Multiple fixing bases are arranged at the top of the conveying belt. The separating mechanism comprises a support, the support is fixedly installed on one side of the portal frame, a dust removal box is arranged at the top of the support, one end of the dust removal box communicates with a discharging box through a guide pipe, a mesh plate is obliquely arranged in the discharging box, a motor is fixedly installed in the dust removal box, and the output end of the motor is connected with fan blades. A plurality of filter screens are arranged on the side, close to the discharging box, of the motor in the dust removal box; the separating mechanism is used for screening and filtering, the cleaning assembly is used for cleaning the filter screen, the conveying belt is matched with the gravity sensor, dust falling, blocking prevention and accurate filling are achieved, and safety and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of fireworks processing equipment technology, and in particular to a device for filling bright beads into a combination fireworks tube. Background Technology

[0002] Fireworks are made primarily from gunpowder and produce effects such as light, sound, color, shape, and smoke through combustion or explosion after ignition. They are used for viewing. With the widespread use of fireworks, the requirements for the effects and safety of fireworks are becoming increasingly stringent. A fireworks tube consists of a launch tube containing propellant and an inner tube containing effect powder. The inner tube requires processes such as filling and pressing the mud bottom, filling the effect powder, filling the bright beads, and sealing the inner tube during processing.

[0003] The combined fireworks tube bright bead filling device proposed in the patent with reference announcement number CN220398374U, although it realizes the automated filling of bright beads through telescopic cylinder, material distribution box and servo motor drive mechanism, significantly reducing the intensity of manual labor and improving production efficiency, still has safety and environmental hazards that cannot be ignored in practical applications.

[0004] During operation, the bright beads stored in the storage tank of this device often contain some powder. Due to the lack of separation measures, during the feeding process, the powder will enter the distribution box along with the bright beads through the feeding pipe and be discharged from the feeding cylinder. This scattered powder will not only pollute the workshop environment, but if inhaled by operators, long-term accumulation may harm their respiratory health. More seriously, the pyrotechnic powder is a flammable and explosive substance. When the dust concentration in the air reaches the explosion limit, it is very easy to cause an explosion accident once it encounters an open flame, static electricity or sparks generated by equipment friction, which poses a great threat to production safety. Utility Model Content

[0005] In view of the existing combination fireworks tube bright bead filling device, which lacks a separation measure between the bright beads and the powder in the storage tank, resulting in the powder being discharged with the bright beads, posing safety and environmental hazards such as environmental pollution, harm to human health, and explosion accidents, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined fireworks tube bright bead filling device, including a frame, a conveyor belt installed inside the frame, a gantry frame at the top of the frame, a feeding assembly inside the gantry frame, a feeding box on one side of the top of the gantry frame, a guide port at one end of the feeding box, and the lower end of the guide port connected to the feeding assembly through a flexible hose, a separation mechanism on one side of the feeding box, and several sets of fixing seats at the top of the conveyor belt;

[0007] The separation mechanism includes a support frame, which is fixedly installed on one side of the gantry frame. A dust collection box is provided on the top of the support frame, and one end of the dust collection box is connected to the feeding box through a conduit. A perforated plate is inclinedly provided inside the feeding box. A motor is fixedly installed inside the dust collection box, and a fan blade is connected to the output end of the motor. Several filter screens are provided inside the dust collection box on the side of the motor near the feeding box.

[0008] As a preferred embodiment, the separation mechanism further includes a collection box. The bottom of the bracket has an installation groove, and the collection box is disposed in the installation groove. The collection box is connected to the bracket by quick-release bolts. The bottom of the dust collection box has a discharge port on the side of the filter screen away from the motor. Two partitions are fixedly installed inside the collection box, and the partitions are located between adjacent discharge ports. One side of the conduit is connected to a dust suction hood through a dust suction pipe. The top of the dust collection box is provided with a cleaning component.

[0009] As a preferred embodiment, the cleaning assembly includes a crankshaft, which is rotatably mounted on one side of the top of the dust collection box. A sprocket is fitted onto one end of the crankshaft, and a second sprocket is connected to the output end of the motor extending outside the dust collection box. The first and second sprockets are connected by a chain. A drive rod is hinged to the concave portion of the crankshaft via a connector. The lower end of the drive rod extends into the dust collection box, and the drive rod is located on the side of the filter screen away from the motor. Several cleaning brushes are fixedly installed on the side of the drive rod near the motor.

[0010] As a preferred embodiment, the diameter of the sprocket is larger than the diameter of the chain, the connector is T-shaped, and multiple drive rods and connectors are provided.

[0011] As a preferred embodiment, the perforated plate is located between the upper opening of the feed inlet and the guide tube, and the perforated plate is arranged with the left side higher than the right side. The top of the feed box is hinged with a box cover, and a sealing layer is provided between the box cover and the feed box.

[0012] As a preferred embodiment, a gravity sensor is embedded in the bottom surface of the fixed base, and a support plate is fixedly installed in the middle position between the frames, with the support plate located inside the conveyor belt and the top of the support plate in contact with the inner top surface of the conveyor belt.

[0013] As a preferred embodiment, the unloading assembly includes a hydraulic cylinder, which is fixedly installed on the top of the gantry frame. The telescopic end of the hydraulic cylinder is connected to a material distribution box on the inner side of the gantry frame. Several direct-acting solenoid valves are evenly distributed at the bottom of the material distribution box, and the lower end of each direct-acting solenoid valve is connected to a material discharge cylinder. The number of material discharge cylinders corresponds to the number of fixed seats in each group. The material distribution box is connected to one end of a hose. Both ends of the material distribution box are equipped with sliders. The inner wall of the gantry frame is symmetrically provided with grooves that are adapted to the sliders. A controller is provided on one side of the gantry frame.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] 1. This utility model uses a separation mechanism to sieve the bright beads and medicine powder using a perforated plate. At the same time, the motor drives the fan blades to generate suction force, thereby drawing the medicine powder into the dust collection box and filtering it using a multi-layer filter screen. It can also suction the discharge cylinder to prevent some of the dust generated during the filling of bright beads from spreading to the surrounding environment and polluting the environment, or being inhaled by people and harming their health. It also prevents the occurrence of explosion accidents caused by the bright beads coming into contact with open flames, static electricity or sparks generated by equipment friction, which would pose a great threat to production safety.

[0016] 2. This utility model uses a cleaning component linked with a motor to continuously drive multiple drive rods to move the cleaning brush up and down, thereby cleaning and collecting most of the powder adhering to the filter screen into the collection box, preventing it from clogging and affecting the ventilation and filtration effect.

[0017] 3. This utility model uses a conveyor belt to transport multiple sets of fixed seats, which facilitates loading and unloading, realizing a production line for filling bright beads and improving work efficiency. At the same time, it can be used with a gravity sensor to monitor the amount of bright beads filled in the firework tube, so as to accurately measure in real time and ensure product consistency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3 This is a partial cross-sectional structural diagram of the material feeding box and the dust removal box of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the crankshaft, drive rod, and sprocket one and sprocket two of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure between the support plate and the frame of this utility model.

[0023] Figure 6 This is a schematic diagram of the fixed base and gravity sensor structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Conveyor belt; 3. Gantry frame; 4. Hydraulic cylinder; 5. Feed box; 6. Direct-acting solenoid valve; 7. Feeding cylinder; 8. Fixed base; 9. Feeding box; 10. Guide port; 11. Box cover; 12. Mesh plate; 13. Support; 14. Dust collection box; 15. Motor; 16. Fan blade; 17. Filter screen; 18. Collection box; 19. Partition; 20. Suction pipe; 21. Suction hood; 22. Crankshaft; 23. Sprocket 1; 24. Chain; 25. Sprocket 2; 26. Connector; 27. Drive rod; 28. Cleaning brush; 29. ​​Support plate; 30. Slider; 31. Gravity sensor. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1-5 As shown, a combined fireworks tube bright bead filling device is provided. The device includes a frame 1, a conveyor belt 2 installed inside the frame 1, a gantry frame 3 on the top of the frame 1, a feeding assembly inside the gantry frame 3, a feeding box 9 on one side of the top of the gantry frame 3, a guide port 10 connected to one end of the feeding box 9, and the lower end of the guide port 10 connected to the feeding assembly through a flexible hose. A separation mechanism is provided on one side of the feeding box 9, and several sets of fixed seats 8 are provided on the top of the conveyor belt 2. Through the cooperation of the conveyor belt 2 and the fixed seats 8, the continuous conveying and positioning of the fireworks tube can be realized, and the bright bead filling efficiency can be improved by combining assembly line operation.

[0028] The separation mechanism includes a support frame 13, which is fixedly installed on one side of the gantry frame 3. A dust collection box 14 is provided on the top of the support frame 13, and one end of the dust collection box 14 is connected to the feeding box 9 through a conduit. A perforated plate 12 is inclinedly provided inside the feeding box 9. A motor 15 is fixedly installed inside the dust collection box 14, and a fan blade 16 is connected to the output end of the motor 15. Several filters 17 are provided inside the dust collection box 14 on the side of the motor 15 near the feeding box 9. In this example, there are three sets of filters 17, namely primary filter, intermediate filter, and intermediate filter. The filter screen and high-grade filter screen are used for multi-stage filtration of powder. The materials of components such as the feeding box 9, the mesh plate 12, and the dust collection box 14 can be selected according to the needs, and appropriate anti-static and wear-resistant materials can be used, such as stainless steel. The mesh plate 12 is used to screen the bright beads and the medicine powder. Combined with the motor 15 driving the fan blade 16 to generate negative pressure, the medicine powder is sucked into the dust collection box 14 and filtered through the filter screen 17, which effectively separates the materials and purifies the air, avoiding the medicine powder from being discharged with the bright beads, polluting the environment, harming health, or causing the risk of explosion.

[0029] In this example, the separation mechanism also includes a collection box 18. The bottom of the bracket 13 has an installation groove, and the collection box 18 is set in the installation groove. The collection box 18 is connected to the bracket 13 by quick-release bolts. The bottom of the dust collection box 14 has a discharge port on the side of the filter screen 17 away from the motor 15. Two partitions 19 are fixedly installed inside the collection box 18, and the partitions 19 are located between adjacent discharge ports. One side of the conduit is connected to a dust suction hood 21 through a dust suction pipe 20. The top of the dust collection box 14 is equipped with a cleaning component. The collection box 18, together with the partitions 19, can collect different particle sizes of medicine powder. The quick-release structure facilitates regular cleaning. The dust suction hood 21 expands the suction range, improves dust collection efficiency, realizes centralized treatment of medicine powder, avoids secondary pollution, and facilitates maintenance and operation.

[0030] In this example, the cleaning assembly includes a crankshaft 22, which is rotatably mounted on one side of the top of the dust collection box 14. A sprocket 23 is fitted onto one end of the crankshaft 22. The output end of the motor 15 extends to the outside of the dust collection box 14 and is connected to a sprocket 25. Sprocket 23 and sprocket 25 are connected by a chain 24. A drive rod 27 is hinged to the concave part of the crankshaft 22 through a connector 26. The lower end of the drive rod 27 extends into the dust collection box 14, and the drive rod 27 is located on the side of the filter screen 17 away from the motor 15. Several cleaning brushes 28 are fixedly installed on the side of the drive rod 27 near the motor 15. In this example, the cleaning brushes 28 are made of anti-static material. The motor 15 drives the sprocket 25 to rotate via the chain 24, causing the crankshaft 22 to reciprocate by driving the drive rod 27 and cleaning brushes 28 to clean the filter screen 17, preventing dust from clogging and affecting the filtration effect, achieving automatic cleaning of the filter screen 17, and maintaining continuous and efficient dust purification capabilities.

[0031] In this example, the diameter of sprocket 23 is larger than that of chain 24, the connector 26 is T-shaped, and there are multiple drive rods 27 and connectors 26. The diameter difference between sprocket 23 and chain 24 can reduce the movement speed of cleaning brush 28 and increase the cleaning force. Multiple sets of drive rods 27 and connectors 26 ensure that the filter screen 17 is fully covered and cleaned, improve the cleaning effect, and avoid local clogging of filter screen 17.

[0032] In this example, the perforated plate 12 is located between the upper opening of the feed inlet 10 and the guide tube, and the perforated plate 12 is set with the left side higher than the right side. The top of the feed box 9 is hinged with a box cover 11, and a sealing layer is provided between the box cover 11 and the feed box 9. The inclined perforated plate 12 uses gravity to accelerate the sliding screening of bright beads, and the sealed box cover 11 prevents dust from overflowing, improves the sealing and safety of the separation process, optimizes screening efficiency, and reduces the risk of dust leakage.

[0033] Reference Figures 1-2 and Figure 6As shown in this example, a gravity sensor 31 is embedded in the bottom surface of the fixed base 8, and a support plate 29 is fixedly installed in the middle position between the frames 1. The support plate 29 is located inside the conveyor belt 2, and the top of the support plate 29 is in contact with the inner top surface of the conveyor belt 2. The gravity sensor 31 monitors the weight of the firework tube in real time and accurately controls the amount of bright beads filled. The support plate 29 supports the conveyor belt 2 to prevent sagging and ensures the stability of the weighing. This structure realizes dynamic calibration of the filling amount, ensures product consistency, and improves the reliability of equipment operation.

[0034] In this example, the feeding assembly includes a hydraulic cylinder 4, which is fixedly installed on the top of the gantry 3. The telescopic end of the hydraulic cylinder 4 is connected to a feeding box 5 inside the gantry 3. Several direct-acting solenoid valves 6 are evenly distributed at the bottom of the feeding box 5, and the lower end of the direct-acting solenoid valve 6 is connected to a feeding cylinder 7. The number of feeding cylinders 7 corresponds to the number of fixed seats 8 in each group. The feeding box 5 is connected to one end of a hose. Both ends of the feeding box 5 are equipped with sliders 30. The inner wall of the gantry 3 is symmetrically provided with slide grooves that are adapted to the sliders 30. A controller is provided on one side of the gantry 3. The hydraulic cylinder 4 drives the feeding box 5 to rise and position. The direct-acting solenoid valves 6 quickly open and close to control the feeding. The sliders 30 cooperate with the slide grooves to ensure smooth movement and realize precise filling at multiple stations.

[0035] The material screening and dust removal principles during use are as follows:

[0036] The mixture of bright beads and powder is poured into the top of the feeding box 9. It is screened by an inclined mesh plate 12 with a left-high and right-low design. Gravity accelerates the sliding of the bright beads. Because the particle size of the bright beads is larger than that of the mesh, they are retained on the plate and enter the distribution box 5 through the guide port 10 and the hose. The powder leaks to the bottom of the plate and is sucked into the dust collection box 14 by the negative pressure generated by the fan blades 16 driven by the motor 15. After being filtered by multiple layers of filter screens 17, the dust is intercepted and clean air is discharged. The dust suction hood 21 simultaneously sucks up the dust raised during the filling of the feeding cylinder 7 to prevent overflow.

[0037] The principle behind the automatic cleaning of filter 17:

[0038] When the motor 15 rotates, it drives the sprocket 23 and crankshaft 22 to rotate through the second sprocket 25 and the chain 24. The concave structure of the crankshaft 22 drives the connecting piece 26 and the drive rod 27 to move up and down, so that the cleaning brush 28 continuously cleans the dust on the surface of the filter screen 17. The dust that falls off falls into the collection box 18 through the bottom discharge port of the dust collection box 14 and is collected by the partition 19.

[0039] Principle of assembly line filling and weighing control:

[0040] Conveyor belt 2 moves fixed seat 8 to below the feeding assembly. Gravity sensor 31 detects the weight of the firework tube in real time, initially the weight of an empty tube. Hydraulic cylinder 4 drives the distribution box 5 to descend, aligning the feeding cylinder 7 with the opening of the firework tube. The controller opens the direct-acting solenoid valve 6, and the bright beads fall from the distribution box 5 through the feeding cylinder 7 into the tube. When gravity sensor 31 detects that the weight has reached the preset value, it feeds back to the controller to close the direct-acting solenoid valve 6, stopping the feeding. Conveyor belt 2 continues to transport the filled firework tube, while simultaneously connecting an empty tube to repeat the process.

[0041] Dust collection and maintenance principle:

[0042] The collection box 18 is fixed to the bracket 13 by quick-release bolts, and the trapped powder is removed and cleaned regularly; the sealing layer of the box cover 11 and the feeding box 9, as well as the anti-static design of the whole equipment such as grounding, prevent dust leakage and static electricity accumulation, and improve safety.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A combination firework firework cylinder bright pearl filling device, comprising a rack (1), characterized in that: A conveyor belt (2) is installed inside the frame (1). A gantry frame (3) is provided on the top of the frame (1). A feeding assembly is provided inside the gantry frame (3). A feeding box (9) is provided on one side of the top of the gantry frame (3). One end of the feeding box (9) is connected to a guide port (10), and the lower end of the guide port (10) is connected to the feeding assembly through a flexible hose. A separation mechanism is provided on one side of the feeding box (9). Several sets of fixed seats (8) are provided on the top of the conveyor belt (2). The separation mechanism includes a bracket (13), which is fixedly installed on one side of the gantry (3). A dust collection box (14) is provided on the top of the bracket (13), and one end of the dust collection box (14) is connected to the feeding box (9) through a conduit. A mesh plate (12) is inclinedly provided inside the feeding box (9). A motor (15) is fixedly installed inside the dust collection box (14), and a fan blade (16) is connected to the output end of the motor (15). Several filter screens (17) are provided inside the dust collection box (14) on the side of the motor (15) near the feeding box (9).

2. The combination firework shell bright bead filling device according to claim 1, characterized in that: The separation mechanism also includes a collection box (18). The bottom of the bracket (13) is provided with an installation groove. The collection box (18) is set in the installation groove and is connected to the bracket (13) by quick-release bolts. The bottom of the dust collection box (14) is provided with a discharge port on the side of the filter screen (17) away from the motor (15). Two partitions (19) are fixedly installed in the collection box (18) and the partitions (19) are located between adjacent discharge ports. One side of the conduit is connected to a dust suction hood (21) through a dust suction pipe (20). The top of the dust collection box (14) is provided with a cleaning component.

3. The combination firework shell bright bead filling device according to claim 2, characterized in that: The cleaning assembly includes a crankshaft (22), which is rotatably mounted on one side of the top of the dust collection box (14). One end of the crankshaft (22) is fitted with a sprocket (23). The output end of the motor (15) extends to the outside of the dust collection box (14) and is connected to a sprocket (25). The sprocket (23) and the sprocket (25) are connected by a chain (24). The concave part of the crankshaft (22) is hinged to a drive rod (27) through a connector (26). The lower end of the drive rod (27) extends into the dust collection box (14), and the drive rod (27) is located on the side of the filter screen (17) away from the motor (15). Several cleaning brushes (28) are fixedly installed on the side of the drive rod (27) close to the motor (15).

4. The combination firework shell filling device of claim 3, wherein: The diameter of the sprocket (23) is larger than the diameter of the chain (24), the connector (26) is T-shaped, and both the drive rod (27) and the connector (26) are provided with multiple parts.

5. The combination firework shell bright bead filling device according to claim 4, characterized in that: The perforated plate (12) is located between the upper opening of the guide port (10) and the guide tube, and the perforated plate (12) is set with the left side higher than the right side. The top of the feeding box (9) is hinged with a box cover (11), and a sealing layer is provided between the box cover (11) and the feeding box (9).

6. The combination firework shell filling device of claim 2, wherein: A gravity sensor (31) is embedded in the bottom surface of the fixed seat (8). A support plate (29) is fixedly installed in the middle position between the frames (1), and the support plate (29) is located inside the conveyor belt (2), and the top of the support plate (29) is in contact with the top surface of the inner side of the conveyor belt (2).

7. The combination firework shell filling device of claim 2, wherein: The feeding assembly includes a hydraulic cylinder (4), which is fixedly installed on the top of the gantry frame (3). The telescopic end of the hydraulic cylinder (4) is connected to a feeding box (5) inside the gantry frame (3). Several direct-acting solenoid valves (6) are evenly distributed at the bottom of the feeding box (5), and the lower end of the direct-acting solenoid valve (6) is connected to a feeding cylinder (7). The number of feeding cylinders (7) corresponds to the number of each set of fixed seats (8). The feeding box (5) is connected to one end of a hose. Both ends of the feeding box (5) are provided with sliders (30). The inner wall of the gantry frame (3) is symmetrically provided with sliding grooves that are adapted to the sliders (30). A controller is provided on one side of the gantry frame (3).

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