Automatic forming device for firework shell

Abstract

The utility model relates to the field of firework manufacturing, in particular to an automatic forming device for a firework shell. Comprising a rack, a controller, a discharging frame, a first driving motor, a rotating shaft, a conveying belt and the like, the controller is installed on the outer side of the rack, the discharging frame is installed on the right side of the rack, the first driving motor is installed on the front portion of the rack and electrically connected with the controller, and the rotating shaft is fixedly connected to an output shaft of the first driving motor and rotationally connected with the rack; and a rotating shaft which is symmetrical with the rotating shaft is arranged and is only rotationally connected with the rack. According to the utility model, the cam rotates to drive the pressing plate to extrude glue up and down, and the glue is uniformly smeared on a paper surface through the scraping plate, so that the situation that the local glue is too much or too little is avoided, the pasting firmness of a firework paper tube is improved, the paper tube is not easy to disperse in the subsequent processing, storage and use processes, and the service life of the paper tube is prolonged. The structural stability of the firework paper tube is guaranteed, and therefore the overall quality of firework products is improved.

Description

Technical Field

[0001] This utility model relates to the field of fireworks manufacturing, and in particular to an automatic fireworks shell forming device. Background Technology

[0002] Fireworks are pyrotechnic products used for celebrations, entertainment, and other occasions. They are mainly composed of gunpowder, luminescent agents, and colorants, all encased in a firework shell. The ignition of fireworks involves a chemical reaction between the luminescent and colorants at high temperatures, producing dazzling and colorful lights and colors, accompanied by explosions or bursts of sound and unique visual effects. Fireworks have become an important element in adding joy and celebration to festivals and events.

[0003] Firework casings are typically made of paper, a material known for its flexibility and flammability, which suits the combustion characteristics of fireworks. Furthermore, paper is relatively inexpensive and easy to process, meeting the demands of large-scale fireworks production. Currently, fireworks casing manufacturing primarily relies on traditional manual or semi-automated production methods, involving processes such as paper rolling, gluing, drying, and demolding. In manual production, operators must roll multiple layers of paper layer by layer using a mold, followed by gluing and air drying, resulting in high labor intensity and low production efficiency. Moreover, manual gluing easily leads to uneven casing thickness and weak adhesive bonding, resulting in low product yield and safety hazards such as casing explosions during ignition.

[0004] Therefore, there is a particular need for an automatic fireworks shell forming device to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing fireworks shell forming devices, such as uneven manual glue application and low work efficiency, this utility model provides an automatic fireworks shell forming device.

[0006] The technical solution is as follows: An automatic fireworks shell forming device includes a frame, a controller, a discharge rack, a first drive motor, a rotating shaft, a conveyor belt, a cam, a glue storage tank, a pressure plate, connecting rods, springs, and a scraper. The controller is installed on the outside of the frame, the discharge rack is installed on the right side of the frame, the first drive motor is installed at the front of the frame and is electrically connected to the controller, a rotating shaft is fixedly connected to the output shaft of the first drive motor and is rotatably connected to the frame, and another symmetrical rotating shaft is rotatably connected to the frame. A conveyor belt is wound between the two rotating shafts, cams are symmetrically fixedly connected to both sides of the rotating shaft, a glue storage tank is fixedly fixed to one side of the top of the frame, a pressure plate is slidably connected in the glue storage tank, two connecting rods are symmetrically fixedly fixed to the top of the glue storage tank, the pressure plate is slidably connected to the two connecting rods, springs are wound between the pressure plate and the two connecting rods respectively, and the pressure plate is slidably connected to the frame on both sides and located directly above the cams. A scraper is also fixedly connected to the upper part of the frame, and the scraper on the scraper is close to the surface of the conveyor belt.

[0007] As a preferred technical solution of this utility model, the scraper on the scraper is made of flexible silicone material, which is not easy to damage the paper surface.

[0008] As a preferred technical solution of this utility model, it also includes a second drive motor, a paper roll, a servo motor, a bidirectional screw, and a push block. The second drive motor is installed on the left rear part of the frame and is electrically connected to the controller. The paper roll is fixedly connected to the output shaft of the second drive motor. The left side of the paper roll is rotatably connected to the frame, and the right side extends to the discharge rack. A servo motor is also installed on the left rear part of the frame away from the second drive motor. The servo motor is electrically connected to the controller. A bidirectional screw is fixedly connected to the output shaft of the servo motor and is rotatably connected to the frame. A push block is slidably connected to the bidirectional screw and is also slidably connected to the paper roll.

[0009] As a preferred technical solution of this utility model, the paper roll is close to the worktable surface of the machine frame.

[0010] As a preferred technical solution of this utility model, it also includes a dual-axis cylinder and a cutter. The dual-axis cylinder is mounted on the frame and is electrically connected to the controller. The cutter is fixedly connected to the output shaft of the dual-axis cylinder.

[0011] As a preferred technical solution of this utility model, it also includes a drying chamber, which is installed on the top of the discharge rack and is electrically connected to the controller.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a cam to rotate and drive the pressure plate to squeeze the glue up and down, and uses a scraper to evenly apply the glue to the paper surface, avoiding the situation of too much or too little glue in some places. This helps to improve the bonding firmness of the fireworks paper tube, making the paper tube less likely to fall apart during subsequent processing, storage and use, ensuring the structural stability of the fireworks paper tube, thereby improving the overall quality of fireworks products.

[0013] 2. This utility model uses a bidirectional screw to drive the slider to move horizontally left and right, which can quickly release the paper material from the screw, reducing the production time of a single firework paper tube. Moreover, the operation is precise, ensuring the integrity of the paper tube, and improving production efficiency and product qualification rate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the first drive motor, rotating shaft, and conveyor belt components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the second drive motor, the paper roll, and the servo motor.

[0017] Figure 4 This is a three-dimensional structural diagram of the glue storage box, pressure plate, and scraper of this utility model.

[0018] Figure 5 This is a schematic diagram of the planar structure of the components of this utility model, including the discharge rack, bidirectional screw, and drying chamber.

[0019] The components are: 1-frame, 101-controller, 2-discharge rack, 3-first drive motor, 301-cam, 4-rotating shaft, 5-conveyor belt, 6-dual-axis cylinder, 601-cutter, 7-second drive motor, 8-paper roll, 9-servo motor, 10-bidirectional screw, 11-push block, 12-glue storage tank, 13-pressure plate, 1301-connecting rod, 1302-spring, 14-scraper, 15-drying chamber. Detailed Implementation

[0020] Example: An automatic fireworks shell forming device, such as... Figures 1-5As shown, the assembly includes a frame 1, a controller 101, a discharge rack 2, a first drive motor 3, a rotating shaft 4, a conveyor belt 5, a cam 301, a glue storage tank 12, a pressure plate 13, a connecting rod 1301, a spring 1302, and a scraper 14. The controller 101 is bolted to the outside of the frame 1, and the discharge rack 2 is bolted to the right side of the frame 1. The first drive motor 3 is bolted to the front left side of the frame 1. The first drive motor 3 is electrically connected to the controller 101. A rotating shaft 4 is welded to the output shaft of the first drive motor 3, and the rotating shaft 4 is rotatably connected to the frame 1. There is another symmetrical rotating shaft 4, which is only rotatably connected to the frame 1. The two rotating shafts 4 are connected... The machine is equipped with a conveyor belt 5. Cams 301 are symmetrically fixed to both sides of the rotating shaft 4. A glue storage tank 12 is bolted to the top of the front side of the frame 1. A pressure plate 13 is slidably connected in the glue storage tank 12. Two connecting rods 1301 are symmetrically fixed to the top of the glue storage tank 12. The pressure plate 13 is slidably connected to the two connecting rods 1301. Springs 1302 are wound between the pressure plate 13 and the two connecting rods 1301 respectively. The two sides of the pressure plate 13 are slidably connected to the frame 1 and are located directly above the cams 301. A scraper 14 is also bolted to the upper part of the frame 1. The scraper on the scraper 14 is close to the surface of the conveyor belt 5. The scraper on the scraper 14 is made of flexible silicone material, which is not easy to damage the paper surface.

[0021] When using this device, it should first be placed stably on a flat surface to ensure that it will not tilt or move due to uneven ground. Next, the first drive motor 3 is started via controller 101. The output shaft of the first drive motor 3 drives the rotating shaft 4 to rotate, which in turn drives the connected conveyor belt 5 to rotate synchronously, thus moving the paper material backward stably. Simultaneously, the rotation of the rotating shaft 4 causes the cam 301 to rotate as well. Due to the special shape of the cam 301, it periodically pushes up the pressure plate 13, compressing the spring 1302. When the cam 301 moves away from the pressure plate 13, the spring 1302 is no longer compressed, and the pressure plate 13 returns to its original position, allowing the glue in the glue tank 12 to be evenly squeezed onto the paper material, solving the problem of thick glue that is difficult to flow out. As the glued paper material continues to move on the conveyor belt 5, the scraper on the scraper 14 removes excess glue, ensuring a clean paper surface and providing a good foundation for subsequent paper rolling operations.

[0022] like Figure 1 and Figure 2 As shown, it also includes a dual-axis cylinder 6 and a cutter 601. The dual-axis cylinder 6 is bolted to the frame 1. The dual-axis cylinder 6 is electrically connected to the controller 101. The cutter 601 is welded to the output shaft of the dual-axis cylinder 6.

[0023] Then, the controller 101 starts the second drive motor 7 and the dual-axis cylinder 6. The output shaft of the second drive motor 7 drives the paper roll 8 to rotate at high speed. When the conveyor belt 5 feeds the paper forward to the vicinity of the paper roll 8, the paper comes into contact with the paper roll 8 and is rubbed by the adhesive force provided by the glue and the friction generated by the high-speed rotation of the paper roll 8, thus winding it onto the paper roll 8. After the paper roll reaches the appropriate length, the dual-axis cylinder 6 drives the cutter 601 to cut the paper, ensuring that the cutting position is accurate each time, thereby ensuring that the length of each firework paper tube is consistent and improving the standardization of the product.

[0024] like Figure 1 and Figure 2 As shown, the machine also includes a second drive motor 7, a paper roll 8, a servo motor 9, a bidirectional screw 10, and a pusher block 11. The second drive motor 7 is bolted to the left rear part of the frame 1. The second drive motor 7 is electrically connected to the controller 101. The paper roll 8 is welded to the output shaft of the second drive motor 7. The left side of the paper roll 8 is rotatably connected to the frame 1, and the right side extends to the discharge rack 2. The paper roll 8 is close to the worktable surface of the frame 1 for easy contact with the paper. The servo motor 9 is also bolted to the left rear part of the frame 1 away from the second drive motor 7. The servo motor 9 is electrically connected to the controller 101. The bidirectional screw 10 is welded to the output shaft of the servo motor 9. The bidirectional screw 10 is rotatably connected to the frame 1. The pusher block 11 is threaded onto the bidirectional screw 10. The pusher block 11 is also slidably connected to the paper roll 8. The servo motor 9 drives the bidirectional screw 10 to rotate, thereby driving the pusher block 11 to slide on the paper roll 8.

[0025] like Figure 1 and Figure 5 As shown, it also includes a drying chamber 15. The top of the discharge rack 2 is connected to the drying chamber 15 by bolts, and the drying chamber 15 is electrically connected to the controller 101.

[0026] The servo motor 9 is started by the controller, and the output shaft of the servo motor 9 drives the bidirectional screw 10 to rotate. Since the push block 11 is threadedly connected to the bidirectional screw 10, the rotation of the bidirectional screw 10 will drive the push block 11 to move to the right on the bidirectional screw 10, thereby smoothly pushing the paper tube wound on the paper roll 8 to the right into the discharge rack 2. Under the drive of the output shaft of the servo motor 9, it returns to the left. The drying chamber 15 on the discharge rack 2 dries the paper tube. The temperature and drying time of the drying chamber 15 can be precisely set by the controller 101 according to the material of the paper tube and the production requirements. This ensures that the paper tube can be dried quickly and evenly, improving the drying efficiency and quality of the paper tube.

[0027] By repeating the above operations, the fireworks shells can be produced quickly and efficiently. Throughout the process, the coordinated work of each component ensures the stability of product quality and the high efficiency of production.

Claims

1. An automatic fireworks shell forming device, characterized in that, The system includes a frame (1), a controller (101), a discharge rack (2), a first drive motor (3), a rotating shaft (4), a conveyor belt (5), a cam (301), a glue storage tank (12), a pressure plate (13), a connecting rod (1301), a spring (1302), and a scraper (14). The controller (101) is installed on the outside of the frame (1), and the discharge rack (2) is installed on the right side of the frame (1). The first drive motor (3) is installed at the front of the frame (1). The first drive motor (3) is electrically connected to the controller (101). A rotating shaft (4) is fixedly connected to the output shaft of the first drive motor (3). The rotating shaft (4) is rotatably connected to the frame (1). There is another rotating shaft (4) that is symmetrical to it. This rotating shaft (4) is only connected to the frame (1). The two shafts (4) are connected by a rotating mechanism. A conveyor belt (5) is wound between them. Cams (301) are fixedly connected symmetrically on both sides of the shafts (4). A glue storage box (12) is fixedly connected to one side of the top of the frame (1). A pressure plate (13) is slidably connected in the glue storage box (12). Two connecting rods (1301) are symmetrically fixedly connected to the top of the glue storage box (12). The pressure plate (13) is slidably connected to the two connecting rods (1301). Springs (1302) are wound between the pressure plate (13) and the two connecting rods (1301). The pressure plate (13) is slidably connected to the frame (1) on both sides and is located directly above the cams (301). A scraper (14) is also fixedly connected to the upper part of the frame (1). The scraper on the scraper (14) is close to the surface of the conveyor belt (5).

2. The automatic fireworks shell forming device according to claim 1, characterized in that, The scraper on the scraper (14) is made of flexible silicone material, which is not easy to damage the paper surface.

3. The automatic fireworks shell forming device according to claim 2, characterized in that, It also includes a second drive motor (7), a paper roll (8), a servo motor (9), a bidirectional screw (10), and a pusher block (11). The second drive motor (7) is installed on the left rear part of the frame (1). The second drive motor (7) is electrically connected to the controller (101). The paper roll (8) is fixedly connected to the output shaft of the second drive motor (7). The left side of the paper roll (8) is rotatably connected to the frame (1), and the right side extends to the discharge rack (2). The servo motor (9) is also installed on the left rear part of the frame (1) away from the second drive motor (7). The servo motor (9) is electrically connected to the controller (101). The bidirectional screw (10) is fixedly connected to the output shaft of the servo motor (9). The bidirectional screw (10) is rotatably connected to the frame (1). The pusher block (11) is slidably connected to the bidirectional screw (10). The pusher block (11) is also slidably connected to the paper roll (8).

4. The automatic fireworks shell forming device according to claim 3, characterized in that, The paper roll (8) is close to the worktable of the frame (1).

5. The automatic fireworks shell forming device according to claim 4, characterized in that, It also includes a dual-axis cylinder (6) and a cutter (601). The dual-axis cylinder (6) is mounted on the frame (1). The dual-axis cylinder (6) is electrically connected to the controller (101). The cutter (601) is fixedly connected to the output shaft of the dual-axis cylinder (6).

6. The automatic fireworks shell forming device according to claim 5, characterized in that, It also includes a drying chamber (15), the top of the discharge rack (2) is equipped with a drying chamber (15), and the drying chamber (15) is electrically connected to the controller (101).

Images