Bottom sealing device for firework paper tube body

Abstract

The utility model discloses a firework paper tube body bottom sealing device which comprises a conveying assembly, the conveying assembly comprises two conveying belts, a plurality of bearing rings are arranged on the two conveying belts, placing grooves are formed in the top ends of the bearing rings, and elastic assemblies are arranged between the bearing rings and the conveying belts. Second mounting frames are arranged on the two sides of the two conveying belts. According to the device, uniform and annular gluing of the firework cylinder is achieved, when the conveying belt continues to move, after the bearing ring leaves the wedge-shaped block, under the action of the sliding rod and the second spring, resetting is achieved, the firework cylinder also leaves the lower portion of the plugging ring, the plugging ring resets under the action of the first spring, the plugging ring conducts plugging again, and the sealing effect of the firework cylinder is improved. And the glue is prevented from continuously flowing, the bottom sealing operation can be performed on the firework cylinder coated with the glue subsequently by the bottom sealing device body, manual gluing is not needed, and full-automatic annular gluing of the firework cylinder is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks bottom sealing devices, in particular to a fireworks paper tube body bottom sealing device. Background Art

[0002] Fireworks, as a product of the integration of traditional culture and modern technology, have a technical background covering many fields such as chemistry, physics, and mechanical engineering. From the ancient gunpowder formula to the modern electronic ignition system, the production process of fireworks has been constantly evolving, pursuing more brilliant colors, richer forms, and higher safety. Among them, the production of colors depends on precise chemical formulas, which are presented through the combustion of different metal elements; and the change of form depends on the internal structural design of the fireworks. Special effects such as star and heart shapes are achieved through carefully designed molds and gunpowder distribution. At the same time, with the improvement of environmental awareness, modern fireworks technology is also committed to developing new materials that are low in smoke, non-toxic, and degradable to reduce the impact on the environment.

[0003] In the process of making fireworks, the back sealing technology of fireworks paper tubes is a seemingly simple but crucial link. Before the back sealing of fireworks paper tubes, glue should be applied around them, which is a key step to ensure the stability and sealing of the back sealing. As a container for loading gunpowder and effect objects, the stability and sealing of the back sealing of fireworks paper tubes are directly related to the safety and effect of fireworks. Applying glue can not only enhance the structural strength of the paper tube, but also provide additional waterproof and moisture-proof protection. Traditional back sealing processes mostly use manual paper pasting or simple mechanical pressing, and glue coating also relies on manual operation. However, with the advancement of technology, modern fireworks paper tubes use more advanced automated equipment for back sealing, such as ultrasonic welding, hot melt adhesive sealing and other technologies, which not only improves production efficiency, but also greatly enhances the firmness and waterproof performance of the back sealing, ensuring the safety of fireworks during transportation, storage and firing. In addition, the selection of back sealing materials is also more particular. It must be resistant to high temperatures to prevent rupture during firing, and must have a certain toughness to resist external force extrusion. These all reflect the important role of fireworks paper tube back sealing technology in ensuring the quality and safety of fireworks.

[0004] Patent document CN217032207U discloses a bottom sealing device for the body of a combined fireworks paper tube, including an operation table, a pressing structure and a multi-layer rack. The operation table includes a table board and a support frame. The support frame is installed on the upper end surface of the table board and is fixedly connected to the table board perpendicularly. The pressing structure is installed at the head of the support frame and is rotatably connected to the support frame. The multi-layer rack is installed on the upper end surface of the table board and is fixedly connected to the table board, ensuring that when the user needs to use it, the support frame can be stably installed through the table board, so that the pressing structure can be stably supported by the support frame, ensuring that the user can install the cover through the pressing structure, and further achieving the purpose of bottom sealing the fireworks paper tube. When bottom sealing is required, the user can place the corresponding cover inside the positioning groove and then flip the pressing structure onto the tray.

[0005] In the prior art of the above patent, although the above device enables the staff to perform bottom sealing operations on fireworks paper tubes in batches, before bottom sealing the fireworks paper tubes, the staff needs to apply glue to the bottom of the paper tubes one by one and then perform bottom sealing through an automatic bottom sealing machine. However, the bottom of the paper tube is circularly arranged, and the manual glue application process is rather troublesome, and it is easy to have the phenomenon of missed coating or wrong coating, which affects the subsequent bottom sealing operation. Utility Model Content

[0006] The purpose of the present utility model is to provide a bottom sealing device for the body of a fireworks paper tube to solve the above deficiencies in the prior art.

[0007] To achieve the above purpose, the present utility model adopts the following technical scheme: A bottom sealing device for the body of a fireworks paper tube, including a conveying assembly. The conveying assembly includes two conveyor belts. A plurality of bearing rings are arranged on the two conveyor belts. A placing groove is opened at the top of the plurality of bearing rings. An elastic assembly is arranged between the plurality of bearing rings and the conveyor belts. Second mounting frames are arranged on both sides of the two conveyor belts. A glue ring is fixedly installed at the top of the second mounting frame. A fixed ring is fixedly installed inside the glue ring. An annular groove is opened at the bottom of the fixed ring. A plugging ring is slidably installed inside the annular groove. A plurality of second springs are elastically connected between the plugging ring and the inner wall of the annular groove. A wedge surface is opened at the bottom of the plugging ring. A wedge block is arranged between the two conveyor belts. A fixing plate is fixedly installed at the bottom of the two wedge blocks. First mounting frames are arranged on both sides of the conveyor belts. A bottom sealing device body is fixedly installed at the top of the first mounting frame.

[0008] As a further description of the above technical solution: The conveying component includes four support plates, and the four support plates are respectively arranged on both sides of the conveyor belt. Two transmission shafts are rotatably connected between the four support plates. Two belt pulleys are fixedly installed on each of the two transmission shafts. Two conveyor belts are respectively installed in a transmission manner between the four belt pulleys. A motor is fixedly installed on the side wall of one of the support plates, and the output end of the motor is in transmission connection with the transmission shaft.

[0009] As a further description of the above technical solution: The elastic component includes a plurality of fixed rods. The plurality of fixed rods are fixedly installed at the top of the fixed rod. A sliding rod is slidably installed at the top of the fixed rod. A first spring is elastically connected between the sliding rod and the fixed rod. A connecting block is fixedly installed at the top of the sliding rod, and the connecting block is fixedly connected to the side wall of the bearing ring.

[0010] As a further description of the above technical solution: The bottom ends of two of the support plates are fixedly installed with storage grooves.

[0011] As a further description of the above technical solution: A rubber layer is provided on the surface of the wedge block.

[0012] As a further description of the above technical solution: A glue injection port is opened at the top end of the glue ring.

[0013] The utility model provides a bottom sealing device for a fireworks paper tube body. It has the following beneficial effects: The utility model places the fireworks tube to be bottom-sealed inside the placement groove at the top end of the bearing ring. During the movement of the conveyor belt, when the bottom end of the bearing ring encounters the wedge block, the bearing ring can be automatically lifted, and the bearing ring drives the fireworks tube to rise. During the rising process, the fireworks tube contacts the bottom of the glue ring, and the plugging ring can be pushed up. Since the bottom of the plugging ring is a wedge-shaped surface, the glue inside the glue ring can flow out from the gap between the wedge-shaped surface of the plugging ring and the bottom of the glue ring, realizing uniform annular gluing of the fireworks tube. When the conveyor belt continues to move, after the bearing ring leaves the wedge block, under the action of the sliding rod and the second spring, it realizes reset. The fireworks tube also leaves below the plugging ring. Under the action of the first spring, the plugging ring resets again, so that the plugging ring plugs again to prevent the glue from flowing continuously. Subsequently, the fireworks tube after being coated with glue can be bottom-sealed by the bottom sealing device body, eliminating the need for manual gluing and realizing full-automatic annular gluing of the fireworks tube.

[0014] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and does not represent the full scope of the disclosed technology or a comprehensive disclosure of all features. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall three-dimensional structural schematic diagram of a bottom-sealing device for a fireworks paper tube body proposed by the present utility model;

[0017] Figure 2 The three-dimensional exploded structural schematic diagram of the bearing ring and elastic component of the present utility model;

[0018] Figure 3 The three-dimensional sectional structural schematic diagram inside the glue ring of the present utility model;

[0019] Figure 4 The three-dimensional exploded structural schematic diagram of the glue ring of the present utility model;

[0020] Figure 5 The sectional structural schematic diagram with a rubber layer provided on the surface of the wedge block of the present utility model.

[0021] Legend description:

[0022] 1. Support plate; 2. Transmission shaft; 3. Pulley; 4. Conveyor belt; 5. Motor; 6. Fixed rod; 7. First spring; 8. Slide bar; 9. Connecting block; 10. Bearing ring; 11. Placing groove; 12. Fireworks tube; 13. Fixed plate; 14. Wedge block; 15. First mounting bracket; 16. Bottom-sealing device body; 17. Storage groove; 18. Second mounting bracket; 19. Glue ring; 20. Glue injection port; 21. Fixed ring; 22. Annular groove; 23. Second spring; 24. Sealing plug; 25. Wedge surface; 26. Rubber layer. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Refer to Figures 1-5, A bottom-sealing device for a fireworks paper tube body, comprising a conveying assembly. The conveying assembly includes two conveyor belts 4, and a plurality of bearing rings 10 are arranged on the two conveyor belts 4. A placing groove 11 is formed at the top of the plurality of bearing rings 10. An elastic component is arranged between the plurality of bearing rings 10 and the conveyor belts 4. Second mounting frames 18 are arranged on both sides of the two conveyor belts 4. A glue ring 19 is fixedly mounted at the top of the second mounting frame 18. A fixing ring 21 is fixedly mounted inside the glue ring 19. An annular groove 22 is formed at the bottom of the fixing ring 21. A plugging ring 24 is slidably mounted inside the annular groove 22. A plurality of second springs 23 are elastically connected between the plugging ring 24 and the inner wall of the annular groove 22. A wedge surface 25 is formed at the bottom of the plugging ring 24. A wedge block 14 is arranged between the two conveyor belts 4. A fixing plate 13 is fixedly mounted at the bottom of the two wedge blocks 14. First mounting frames 15 are arranged on both sides of the conveyor belts 4. A bottom-sealing device body 16 is fixedly mounted at the top of the first mounting frame 15; Place the fireworks tube 12 to be bottom-sealed inside the placing groove 11 at the top of the bearing ring 10. During the movement of the conveyor belt 4, when the bottom of the bearing ring 10 encounters the wedge block 14, the bearing ring 10 can be automatically lifted, and the bearing ring 10 drives the fireworks tube 12 to rise. During the rising process, the fireworks tube 12 contacts the bottom of the glue ring 19, and the plugging ring 24 can be pushed up. Since the bottom of the plugging ring 24 is a wedge surface 25, the glue inside the glue ring 19 can flow out from the gap between the wedge surface 25 of the plugging ring 24 and the bottom of the glue ring 19, realizing uniform annular gluing of the fireworks tube 12. When the conveyor belt 4 continues to move, after the bearing ring 10 leaves the wedge block 14, under the action of the sliding rod 8 and the second spring 23, it is reset. The fireworks tube 12 also leaves below the plugging ring 24. Under the action of the first spring 7, the plugging ring 24 is reset again, so that the plugging ring 24 re-plugs to prevent the glue from flowing continuously. Subsequently, the fireworks tube 12 after being coated with glue can be bottom-sealed by the bottom-sealing device body 16, eliminating the need for manual gluing and realizing automatic annular gluing of the fireworks tube 12.

[0025] As a preferred technical solution of this embodiment, the conveying assembly includes four support plates 1. The four support plates 1 are respectively arranged on both sides of the conveyor belt 4. Two transmission shafts 2 are rotatably connected between the four support plates 1. Two belt pulleys 3 are fixedly mounted on each of the two transmission shafts 2. The two conveyor belts 4 are respectively drivingly mounted between the four belt pulleys 3. A motor 5 is fixedly mounted on the side wall of one of the support plates 1. The output end of the motor 5 is drivingly connected to the transmission shaft 2; By driving the transmission shaft 2 to rotate with the motor 5, the two conveyor belts 4 can be driven to move under the action of the transmission shaft 2 and the belt pulleys 3, further realizing the movement of the plurality of bearing rings 10.

[0026] As a preferred technical solution of this embodiment, the elastic component includes a plurality of fixing rods 6. The plurality of fixing rods 6 are fixedly installed at the top of the fixing rods 6. A sliding rod 8 is slidably installed at the top of the fixing rod 6. A first spring 7 is elastically connected between the sliding rod 8 and the fixing rod 6. A connecting block 9 is fixedly installed at the top of the sliding rod 8. The connecting block 9 is fixedly connected to the side wall of the bearing ring 10. The fixing rod 6 and the sliding rod 8 can realize the elastic connection between the bearing ring 10 and the conveyor belt 4.

[0027] As a preferred technical solution of this embodiment, receiving grooves 17 are fixedly installed at the bottoms of two of the support plates 1. When the fireworks tube 12 after being coated with glue moves to one side of the conveyor belt 4, due to the gravity factor, the fireworks tube 12 on the bearing ring 10 can fall into the interior of the receiving groove 17, thereby realizing the collection of the finished product.

[0028] As a preferred technical solution of this embodiment, a rubber layer 26 is provided on the surface of the wedge-shaped block 14. The rubber layer 26 is relatively soft and can protect the bottom of the bearing ring 10 when the bearing ring 10 is lifted.

[0029] As a preferred technical solution of this embodiment, a glue injection port 20 is opened at the top of the glue ring 19. The glue injection port 20 can fill glue into the interior of the glue ring 19.

[0030] The above is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes an equivalent substitution or change, and should be covered within the protection scope of the present utility model.

Claims

1. A fireworks paper tube body bottom sealing device, comprising a transmission component, characterized in that: The conveying assembly comprises two conveyor belts (4), a plurality of bearing rings (10) are arranged on the two conveyor belts (4), a placement groove (11) is provided at the top of the plurality of bearing rings (10), an elastic assembly is provided between the plurality of bearing rings (10) and the conveyor belts (4), a second mounting frame (18) is provided on both sides of the two conveyor belts (4), a glue ring (19) is fixedly installed at the top of the second mounting frame (18), a fixing ring (21) is fixedly installed inside the glue ring (19), and a ring groove (21) is provided at the bottom of the fixing ring (21). 2), a blocking ring (24) is slidably installed inside the annular groove (22), a plurality of second springs (23) are elastically connected between the blocking ring (24) and the inner wall of the annular groove (22), a wedge-shaped surface (25) is provided at the bottom end of the blocking ring (24), a wedge block (14) is provided between the two conveyor belts (4), a fixing plate (13) is fixedly installed at the bottom ends of the two wedge blocks (14), a first mounting frame (15) is provided on both sides of the conveyor belt (4), and a bottom sealing device body (16) is fixedly installed at the top end of the first mounting frame (15).

2. A fireworks paper tube body bottom sealing device according to claim 1, characterized in that: The transmission assembly comprises four support plates (1), the four support plates (1) are respectively arranged on both sides of a conveyor belt (4), two transmission shafts (2) are rotatably connected between the four support plates (1), two pulleys (3) are fixedly installed on the two transmission shafts (2), and the two conveyor belts (4) are respectively installed between the four pulleys (3). A motor (5) is fixedly installed on the side wall of one of the support plates (1), and the output end of the motor (5) is connected to the transmission shaft (2) in a transmission manner.

3. A fireworks paper tube body bottom sealing device according to claim 1, characterized in that: The elastic component comprises a plurality of fixed rods (6), the plurality of fixed rods (6) are fixedly mounted on the top of the fixed rod (6), a sliding rod (8) is slidably mounted on the top of the fixed rod (6), a first spring (7) is elastically connected between the sliding rod (8) and the fixed rod (6), a connecting block (9) is fixedly mounted on the top of the sliding rod (8), and the connecting block (9) is fixedly connected to the side wall of the carrying ring (10).

4. A fireworks paper tube body bottom sealing device according to claim 2, characterized in that: The bottom ends of two of the support plates (1) are fixedly mounted with receiving grooves (17).

5. A fireworks paper tube body bottom sealing device according to claim 1, characterized in that: A rubber layer (26) is provided on the surface of the wedge block (14).

6. A fireworks paper tube body bottom sealing device according to claim 1, characterized in that: The top of the glue ring (19) is provided with a glue injection port (20).

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