Charging equipment for firework production

Abstract

The utility model discloses charging equipment for firework production, which belongs to the technical field of charging equipment and comprises an anti-explosion barrel, an anti-explosion barrel cover is connected to the upper end of the anti-explosion barrel, a feeding pipe is communicated with the top of the anti-explosion barrel cover, a dust suction pipe is communicated with the outer wall of the anti-explosion barrel, and a charging device body is arranged in the anti-explosion barrel. A quantitative control device body is connected to one side of the explosive charging device body, a feeding opening is formed in the bottom of the anti-explosion barrel, a conveying belt is arranged in the middle of the feeding opening in a penetrating mode, a limiting groove is formed in the conveying belt, the explosive charging barrel is placed in the limiting groove, a threaded connecting shaft is connected to the outer wall of the anti-explosion barrel, and a pressure relief disc is connected into the threaded connecting shaft in a threaded mode. A plurality of energy absorption assemblies are arranged between the inner wall and the outer wall of one side of the anti-explosion barrel, the two ends of each energy absorption assembly are connected with the corresponding positions of the inner wall and the outer wall of the anti-explosion barrel respectively, a part of impact force generated by explosion can be absorbed, and the personal safety of workers is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of propellant loading equipment technology, and in particular relates to a propellant loading equipment for fireworks production. Background Technology

[0002] The production process of fireworks includes steps such as raw material preparation, mixing, granulation, drying, screening, inspection, loading, assembly, quality inspection, packaging, and storage. Raw material preparation requires strict inspection and may include oxidizers, combustibles, binders, and colorants. The mixing process needs to be uniform, but friction and static electricity must be controlled to prevent accidental ignition. Granulation can be done using wet or dry methods. Temperature must be controlled during drying to avoid high temperatures causing combustion or explosion. Screening removes substandard particles. Inspection ensures that chemical and physical properties meet standards. Explosives are loaded into the fireworks shell, then the product is assembled, and finally, final inspection is performed. Packaging and storage must be moisture-proof and fire-proof.

[0003] During the loading of explosives in pyrotechnic production, explosive dust is easily generated. Due to its low density and large surface area, it is easily ignited, which can cause instability in the combustion performance of pyrotechnics. When the explosive dust content is too high, it will increase the heat sensitivity and flame sensitivity of the explosives, which may have a multifaceted impact on personnel safety, product quality, environment and production efficiency, greatly increasing the safety hazards in the production process. In the event of an explosion, the explosion will spread in all directions, threatening the personal safety of personnel in the explosive loading operation area. Utility Model Content

[0004] The purpose of this utility model is to provide a fireworks production loading device to solve the problem of easy generation of powder dust and the flammability and explosiveness of powder dust during the loading process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fireworks production charging device, comprising an explosion-proof barrel, an explosion-proof barrel cover connected to the upper end of the explosion-proof barrel, a feeding pipe connected to the top of the explosion-proof barrel cover, a dust extraction pipe connected to the outer wall of the explosion-proof barrel, a charging device body disposed inside the explosion-proof barrel, a quantitative control device body connected to one side of the charging device body, a feeding port opened at the bottom of the explosion-proof barrel, a conveyor belt passing through the middle of the feeding port, a limit groove provided on the conveyor belt, a charging barrel placed inside the limit groove, a threaded connecting shaft connected to the outer wall of the explosion-proof barrel, a pressure relief plate internally threaded onto the threaded connecting shaft, a pressure relief pipe connected to the outer wall of the pressure relief plate, and a plurality of energy-absorbing components disposed between the inner and outer walls on one side of the explosion-proof barrel, with the two ends of the energy-absorbing components respectively contacting corresponding positions on the inner and outer walls of the explosion-proof barrel.

[0006] As a further description of the above technical solution:

[0007] The outer wall of the energy-absorbing component is provided with multiple collapse-inducing grooves, the cross-sectional shape of the collapse-inducing grooves is semi-circular, and two slots are opened in the middle of the energy-absorbing component.

[0008] As a further description of the above technical solution:

[0009] The explosion-proof barrel has a dust extraction groove on its inner wall, which is located between the main body of the loading device and the loading barrel. The outer wall of the dust extraction groove has a dust extraction hole, and the dust extraction pipe is connected to the outer wall of the dust extraction groove.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the threaded connecting shaft is rotatably connected to a threaded pressure guide tube, and the external thread of the threaded pressure guide tube is connected to the outer wall of the dust extraction groove.

[0012] As a further description of the above technical solution:

[0013] The diameter of the threaded pressure guide tube is smaller than the diameter of the threaded connection shaft.

[0014] As a further description of the above technical solution:

[0015] The diameter of the inner wall of the limiting groove is equal to the diameter of the outer wall of the medicine barrel, and the bottom of the medicine barrel is inserted into the limiting groove.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. In this utility model, multiple energy-absorbing components are arranged between the inner and outer walls of one side of the explosion-proof barrel. At the same time, a threaded pressure-guiding pipe is arranged on the inner wall of the explosion-proof barrel. The threaded pressure-guiding pipe is connected to a pressure relief plate, and the outer wall of the pressure relief plate is connected to a pressure discharge pipe. When an explosion accident occurs, the energy-absorbing components collapse under the impact of the explosion, absorbing part of the impact force generated by the explosion. At the same time, the pressure generated by the explosion is guided to the pressure relief plate through the threaded pressure-guiding pipe, and then released to the external environment through the pressure discharge pipe. The pressure discharge pipe can be rotated to face different directions, achieving the effect of weakening the impact force of the explosion and directional release of the explosion pressure, thus ensuring the personal safety of the personnel when an accident occurs.

[0018] 2. In this utility model, the inner wall of the explosion-proof barrel is provided with a dust extraction groove, and multiple dust extraction holes are opened at corresponding positions on the outer wall of the dust extraction groove and the outer wall of the explosion-proof barrel. The dust extraction pipe connects the outer wall of the dust extraction groove and the outer wall of the explosion-proof barrel and includes the position of the dust extraction holes within the pipe range. The dust extraction pipe is connected to a duct-type axial flow fan. When the loading operation is carried out, the fan is started, and the dust can be extracted from the explosion-proof barrel through the dust extraction holes and the dust extraction pipe, which greatly reduces the dust content in the equipment during the loading operation and reduces safety hazards. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of a fireworks production loading device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram showing the disassembled structure of a fireworks production loading device proposed in this utility model;

[0021] Figure 3 This is a half-sectional structural diagram of a fireworks production loading device proposed in this utility model;

[0022] Figure 4 This is a half-sectional view of the explosion-proof barrel structure of a fireworks production loading equipment proposed in this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A.

[0024] Legend: 1. Explosion-proof barrel; 2. Explosion-proof barrel lid; 3. Feeding pipe; 4. Dust extraction pipe; 5. Threaded pressure guide pipe; 6. Threaded connecting shaft; 7. Pressure relief plate; 8. Pressure discharge pipe; 9. Main body of the charging device; 10. Main body of the quantitative control device; 11. Charging barrel; 12. Limiting groove; 13. Conveyor belt; 14. Energy absorption component; 141. Collapse induction groove; 142. Groove opening; 15. Dust extraction hole; 16. Dust extraction groove; 17. Feeding port. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5This utility model provides a technical solution: a fireworks production loading device, including an explosion-proof barrel 1, an explosion-proof barrel cover 2 connected to the upper end of the explosion-proof barrel 1, a feeding pipe 3 connected to the top of the explosion-proof barrel cover 2, a dust extraction pipe 4 connected to the outer wall of the explosion-proof barrel 1, a loading device body 9 installed inside the explosion-proof barrel 1, a quantitative control device body 10 connected to one side of the loading device body 9, a feeding port 17 opened at the bottom of the explosion-proof barrel 1, a conveyor belt 13 passing through the middle of the feeding port 17, a limit groove 12 provided on the conveyor belt 13, a loading barrel 11 placed inside the limit groove 12, a threaded connecting shaft 6 connected to the outer wall of the explosion-proof barrel 1, a pressure relief plate 7 threadedly connected to the threaded connecting shaft 6, a pressure relief pipe 8 connected to the outer wall of the pressure relief plate 7, and a plurality of energy-absorbing components 14 arranged between the inner and outer walls on one side of the explosion-proof barrel 1, with the two ends of the energy-absorbing components 14 respectively contacting the corresponding positions of the inner and outer walls of the explosion-proof barrel 1.

[0027] The outer wall of the energy absorption component 14 is provided with a plurality of collapse induction grooves 141, the cross-sectional shape of the collapse induction grooves 141 is semi-circular, and two slots 142 are opened in the middle of the energy absorption component 14.

[0028] The inner wall of the threaded shaft 6 is rotatably connected to a threaded pressure guide tube 5, and the external thread of the threaded pressure guide tube 5 is connected to the outer wall of the dust extraction groove 16.

[0029] The cross-sectional diameter of the threaded pressure guide tube 5 is smaller than the cross-sectional diameter of the threaded connecting shaft 6.

[0030] Specifically, multiple energy-absorbing components 14 are installed between the inner and outer walls of one side of the explosion-proof barrel 1. Each energy-absorbing component 14 has a hollow structure, and multiple collapse-inducing grooves 141 are installed on both sides of the energy-absorbing component 14. Two slots 142 are opened in the middle of the energy-absorbing component 14. The outer wall of the threaded pressure-guiding pipe 5 and the inner wall of the threaded connecting shaft 6 are both threaded. The inner wall of the explosion-proof barrel 1 is connected to the threaded pressure-guiding pipe 5, and the internal thread of the threaded pressure-guiding pipe 5 is connected to the inner wall of the explosion-proof barrel 1. The outer wall of the explosion-proof barrel 1 is connected to the threaded connecting shaft 6. The internal thread connects to the outer wall of the pressure relief plate 7, which is a hollow structure. When an explosion occurs, the energy absorption component 14 is impacted by the explosion and bends and compresses at the collapse induction groove 141 and groove opening 142, absorbing part of the explosion impact force. At the same time, the pressure generated by the explosion is guided into the cavity of the pressure relief plate 7 by the threaded pressure guide pipe 5 and released to the outside along the pressure relief pipe 8. The pressure relief pipe 8 can be rotated to face away from the staff in advance, ensuring the personal safety of the staff in the event of an explosion.

[0031] Furthermore, the top of the explosion-proof barrel 1 is connected to the explosion-proof barrel cover 2 by a snap-fit ​​connection. This part is well-known technology in the field and will not be described further.

[0032] Furthermore, the conveyor belt 13 is driven by a motor to rotate the drum, and the drum then drives the conveyor belt 13 to run. This part is well-known in the field and will not be described further.

[0033] Furthermore, the threaded pressure guide tube 5 and the threaded connecting shaft 6 achieve rotation through threaded engagement. This part is well-known technology in the field and will not be elaborated further.

[0034] The inner wall of the explosion-proof barrel 1 is provided with a dust extraction groove 16, which is located between the main body 9 of the loading device and the loading barrel 11. The outer wall of the dust extraction groove 16 is provided with a dust extraction hole 15, and the dust extraction pipe 4 is connected to the outer wall of the dust extraction groove 16.

[0035] The diameter of the inner wall of the limiting groove 12 is equal to the diameter of the outer wall of the medicine barrel 11, and the bottom of the medicine barrel 11 is inserted into the limiting groove 12.

[0036] Specifically, a charging barrel 11 is placed inside the limiting groove 12, and a charging device body 9 is set above the charging barrel 11. A quantitative control device body 10 is set on one side of the charging device body 9. A dust extraction groove 16 is opened on the inner wall of the explosion-proof barrel 1. The dust extraction groove 16 is located between the charging device body 9 and the charging barrel 11. The cross-sectional shape of the dust extraction groove 16 is annular. The outer wall of the explosion-proof barrel 1 and the outer wall of the dust extraction groove 16 are connected to the dust extraction pipe 4. Multiple dust extraction holes 15 are opened at corresponding positions on the outer wall of the explosion-proof barrel 1 and the outer wall of the dust extraction groove 16 and the dust extraction pipe 4. When the charging operation is performed, the dust generated by the falling gunpowder enters the dust extraction pipe 4 through the dust extraction holes 15 and is extracted from the explosion-proof barrel 1 along the dust extraction pipe 4.

[0037] Furthermore, the main body 9 of the charging device consists of a hopper and a discharge nozzle. This part is well-known technology in the field and will not be described further.

[0038] Furthermore, the main body 10 of the quantitative control device consists of a stepper motor and a precision screw. The screw reciprocates within the hopper using the screw thread. The stepper motor is controlled by a PLC. This part is known technology in the field and will not be described further.

[0039] Furthermore, the dust extraction pipe 4 is connected to a duct-type axial flow fan. This part is well-known technology in the field and will not be described further.

[0040] Working principle: In use, the operator first injects gunpowder into the hopper of the main body 9 of the charging device through the feeding pipe 3, then places the firework tube into the charging barrel 11, aligns the bottom of the charging barrel 11 and inserts it into the limiting groove 12, then rotates the pressure relief plate 7 to make the pressure relief pipe 8 face a safe direction. After that, the conveyor belt 13, the main body 10 of the quantitative control device and the axial flow fan are started. When the conveyor belt 13 moves the charging barrel 11 to below the main body 9 of the charging device, the stepper motor of the main body 10 of the quantitative control device rotates the precision screw according to the preset number of steps. The precision screw rotates out of the charging device along the thread. At a specified distance from the hopper of the main body 9, the gunpowder contained in the hopper of the main body 9 passes through the gap, allowing the gunpowder to fall into the pyrotechnic tube through the discharge port of the main body 9. At the same time, the dust stirred up by the falling gunpowder is drawn away by the axial flow fan through the dust extraction pipe 4. When the amount of gunpowder reaches the set value, the stepper motor of the quantitative control device 10 rotates the precision screw in the opposite direction again according to the preset number of steps, so that the precision screw is screwed into the hopper of the main body 9 at a specified distance along the thread, so that the discharge port of the main body 9 is closed, and the conveyor belt 13 drives the gunpowder barrel 11 away to complete the loading.

[0041] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] 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 fireworks production loading device, comprising an explosion-proof barrel (1), characterized in that, The explosion-proof barrel (1) is connected to an explosion-proof barrel cover (2) at its upper end. A feeding pipe (3) is connected to the top of the explosion-proof barrel cover (2). A dust extraction pipe (4) is connected to the outer wall of the explosion-proof barrel (1). A main body (9) of a loading device is installed inside the explosion-proof barrel (1). A main body (10) of a quantitative control device is connected to one side of the main body (9). A feeding port (17) is opened at the bottom of the explosion-proof barrel (1). A conveyor belt (13) is threaded through the middle of the feeding port (17). 3) A limiting groove (12) is provided on the upper part, and a medicine barrel (11) is placed inside the limiting groove (12). A threaded connecting shaft (6) is connected to the outer wall of the explosion-proof barrel (1). A pressure relief plate (7) is threadedly connected to the inner wall of the threaded connecting shaft (6). A pressure relief pipe (8) is connected to the outer wall of the pressure relief plate (7). A plurality of energy-absorbing components (14) are provided between the inner and outer walls on one side of the explosion-proof barrel (1). The two ends of the energy-absorbing components (14) are respectively in contact with the corresponding positions of the inner and outer walls of the explosion-proof barrel (1).

2. The fireworks production loading equipment according to claim 1, characterized in that, The outer wall of the energy-absorbing component (14) is provided with a plurality of collapse-inducing grooves (141), the cross-sectional shape of the collapse-inducing grooves (141) is semi-circular, and two slots (142) are opened in the middle of the energy-absorbing component (14).

3. The fireworks production loading equipment according to claim 1, characterized in that, The explosion-proof barrel (1) has a dust extraction groove (16) on its inner wall. The dust extraction groove (16) is located between the main body (9) of the loading device and the loading barrel (11). The dust extraction groove (16) has a dust extraction hole (15) on its outer wall. The dust extraction pipe (4) is connected to the outer wall of the dust extraction groove (16).

4. The fireworks production loading equipment according to claim 1, characterized in that, The inner wall of the threaded connecting shaft (6) is rotatably connected to a threaded pressure guide tube (5), and the external thread of the threaded pressure guide tube (5) is connected to the outer wall of the dust extraction groove (16).

5. The fireworks production loading equipment according to claim 4, characterized in that, The diameter of the cross-section of the threaded pressure guide tube (5) is smaller than the diameter of the cross-section of the threaded connecting shaft (6).

6. The fireworks production loading equipment according to claim 1, characterized in that, The diameter of the inner wall of the limiting groove (12) is equal to the diameter of the outer wall of the medicine barrel (11), and the bottom of the medicine barrel (11) is inserted into the limiting groove (12).

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