Firework and cracker inner cylinder cake charging device and charging method

Abstract

The application discloses a fireworks and crackers inner cylinder cake charging device and relates to the technical field of fireworks and crackers production machinery. The fireworks and crackers inner cylinder cake charging device comprises a rack, a charging box and a material scraping mechanism. The charging box is connected with a driving mechanism. The driving mechanism can drive the charging box to swing so that the bottom of the charging box passes through an inclined stage. The material scraping mechanism comprises a material scraping power mechanism and a scraper. At least part of the time period when the scraper performs the material scraping action in the charging box is in the inclined stage of the bottom of the charging box, so that the medicine material can quickly fall into the charging mold at the bottom of the charging box. The charging device can reduce the bridging of the medicine powder, quickly charge the medicine powder into the storage holes, is suitable for the charging of unpacked medicine and the production scene of filling bright bead medicine columns, can guarantee the charging amount of the inner cylinder cake, can quickly fill the medicine material into the storage holes, and improves the charging quality and the production efficiency of the inner cylinder cake.

Description

Technical Field

[0001] This invention relates to the field of fireworks and firecrackers production machinery technology, and in particular to a fireworks and firecrackers inner cylinder cake loading device and loading method. Background Technology

[0002] In the production of combination fireworks and firecrackers, the process of filling the inner cylinder cake with explosives after the bottom end of the inner cylinder is sealed is called loading. During loading, the entire inner cylinder cake is usually loaded to improve efficiency. For example... Figure 1 As shown, the inner cylinder cake a is a well-known unit in the field and is the basic unit of fireworks and firecracker production. It is composed of multiple inner cylinders tightly attached and fixed together. The bottom of the inner cylinder is sealed with a priming agent and a fuse. The inner cylinder cake is generally hexagonal and comes in various models such as 61-hole, 91-hole, and 217-hole, depending on the diameter of the inner cylinder.

[0003] The existing drug loading device includes a scraper and a drug loading mold with a storage hole. The drug loading mold is placed flat, and the scraper is rotated perpendicular to the mold to scrape the material. During operation, various types of drugs are mixed and piled on the drug loading mold. Then, the scraper scrapes the drug into the storage hole. The inner cylinder cake is placed below the drug loading mold, and the storage hole is opened to allow the drug to fall into the inner cylinder cake.

[0004] The inner cylinder cake filling process includes the steps of opening the package and filling with bright beads. The opening package filling involves filling with a mixture of gunpowder powder, while the bright bead filling involves filling with a mixture of bright bead particles and bright bead columns. Existing charging devices and methods often result in insufficient charge volume in the inner cylinder cake, leading to low production efficiency. This is primarily due to two reasons: First, regardless of whether it's open-packed or bright beads, the mixed materials easily bridging and compressing each other. This means that after the scraper passes over them, the charge only seals the opening of the storage hole and doesn't all fall into it. Incomplete storage reduces the amount of charge falling into the inner cylinder cake, severely impacting the quality and production efficiency of the inner cylinder cake. Second, when charging bright beads, the cylindrical shape of the charge column necessitates controlling the scraper's speed and force for safety. Because of the cylindrical shape, some charge columns always have their bottom surface touching the surface of the charging mold. These columns are difficult to scrape away and cannot enter the storage hole, similarly affecting the quality and production efficiency of the inner cylinder cake.

[0005] This invention can overcome the above deficiencies and achieve the requirements of safety, speed and stability. Summary of the Invention

[0006] The purpose of this invention is to provide a device and method for filling the inner tube of fireworks and firecrackers with explosives. This method can reduce the bridging of explosives and is suitable not only for filling explosives from open packages but also for filling bright bead explosive columns. It can ensure the amount of explosives in the inner tube and quickly fill the explosives into the storage hole, thereby improving the quality of the inner tube and the production efficiency.

[0007] On one hand, the technical solution of the present invention is as follows:

[0008] A device for loading explosives into the inner cylinder of fireworks includes a frame, a loading box, and a scraping mechanism. The loading box is connected to a driving mechanism, which can drive the loading box to swing so that the bottom of the loading box passes through an inclined stage. The scraping mechanism includes a scraping power mechanism and a scraper. During the scraping action of the scraper in the loading box, the scraper is in the inclined stage at the bottom of the loading box for at least part of the time, so that the explosive material falls quickly into the loading mold at the bottom of the loading box.

[0009] Compared with the prior art, the advantages of the present invention are as follows:

[0010] This invention breaks through the limitations of current technology by creatively employing a swinging charging box. By alternately tilting both ends of the charging box upwards, the charging mold at its bottom tilts to both sides in turn. This not only uses a scraper to scrape the medicine into the storage hole but also fully utilizes the medicine's own weight to ensure it falls into the storage hole, solving the problems of powder bridging and the inability to scrape the bright bead powder. Under the combined effect of the medicine's gravity and the scraping motion of the scraper, the charging speed is also faster, while simultaneously improving the quality of the inner cylinder cake and production efficiency.

[0011] Furthermore, the scraper is located inside the medicine-filling box. When the medicine-filling box swings, its two ends tilt alternately, and the scraper moves from high to low in the direction of tilt. The scraping motion of the scraper and the sliding of the medicine due to its own gravity are in the same direction, resulting in a better filling effect.

[0012] Furthermore, the driving mechanism includes a swing power mechanism and a connecting mechanism. One end of the connecting mechanism is connected to the swing power mechanism, and the other end is rotatably connected to the medicine box. This connection method can effectively drive the medicine box to swing.

[0013] Furthermore, the medicine box is suspended below the drive mechanism via a connecting mechanism. Compared to other installation methods, the suspension installation method is more stable and easier to control the swing.

[0014] Furthermore, a load-bearing frame is provided at the bottom of the loading box, and a suspension seat is provided on the load-bearing frame. The connecting mechanism and the suspension seat are hinged by a pin, and the loading mold is installed at the bottom of the loading box through the load-bearing frame. This design makes the loading box easier to disassemble and maintain, and when adapting to different models of inner cylinder cakes or changing the loading mold, it is not necessary to disassemble the loading box; the loading mold can be replaced directly, which can significantly reduce assembly time.

[0015] Furthermore, the loading box has swing positions on both sides. These swing positions are where the scraper can approach the side wall of the loading box when it performs the swinging motion. The relative positions of the scraper, the loading mold, and the loading box are configured to achieve the following reciprocating motion via a control device: the scraper moves from the right swing position to the left, scraping the medicine over the loading mold and then reaching the left swing position. It then swings from bottom to top and to the left before returning to its original position. The scraper then moves in the opposite direction, scraping over the loading mold and returning to the right swing position, swinging from bottom to top and to the right before returning to its original position, completing one reciprocating scraping cycle. The scraper's upward swing from the swing position and subsequent return can scrape out medicine from the corners of the loading box, preventing medicine from accumulating there. Adding a ramp at the bottom of the loading box to coordinate with the swinging motion further enhances the effect. This allows medicine that has not entered the storage hole to be gathered in the direction of the scraper's next movement, not only better filling the storage hole but also reducing the dispersion of medicine outside the storage hole area, minimizing waste and extending the equipment's lifespan.

[0016] Furthermore, the scraping power mechanism includes a traveling motor and a rotating motor, with the traveling motor equipped with a traveling track. The scraper requires relatively little power, and the motor is small in size and easy to install and control.

[0017] Furthermore, the loading mold includes a storage template with a storage hole, a drawer plate, and a guide plate. The guide plate is located below the storage template, and the drawer plate is located between the storage template and the guide plate. Unlike the traditional staggered-switch feeding design of loading molds, the addition of the drawer plate allows for a larger storage hole, resulting in smoother feeding.

[0018] Furthermore, the charging mold includes a pull-out plate power mechanism, which is mounted on the charging box. The pull-out plate power mechanism, mounted on the load-bearing frame of the charging box, enhances the overall integrity of the fireworks inner cylinder charging device and reduces the device's footprint.

[0019] On the other hand, the present invention also provides a method for loading explosives into the inner tube of fireworks and firecrackers, which is carried out using the explosive loading device for the inner tube of fireworks and firecrackers of the present invention, and includes the following steps:

[0020] S1: One side of the drug loading box is raised so that the drug loading mold is tilted, and the drug enters the drug loading box from the higher side;

[0021] S2: The scraper scrapes the medicine into the filling mold from high to low along the inclined direction. After the scraper passes the filling mold, it stops. The filling box is adjusted to the opposite inclined state. The scraper continues to scrape the filling mold in the opposite direction and returns to the initial position. The filling box is adjusted to make the two sides level so that the filling mold is in a horizontal state.

[0022] S3: Move the inner cylinder cake to the bottom of the charging mold, open the charging mold to fill the inner cylinder cake with medicine, close the charging mold after filling, remove the inner cylinder cake that has been filled with medicine, and start the next cycle.

[0023] Using an inclined loading method can better ensure that the medicine falls into the storage hole. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the inner tube of a firework.

[0025] Figure 2 This is a schematic diagram of the fireworks and firecracker inner cylinder loading device according to an embodiment of the present invention.

[0026] Figure 3 This is a front structural schematic diagram of the fireworks and firecracker inner cylinder cake loading device according to an embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the rear structure of the fireworks inner tube cake bright bead loading device according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the charging mold structure of the fireworks inner tube cake bright bead charging device according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the charging mold and material storage template of the fireworks inner tube cake bright bead charging device according to an embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram of the loading mold plate of the fireworks inner tube cake bright bead loading device according to an embodiment of the present invention.

[0031] Figure 8 This is a schematic diagram of the detonation mold guide plate of the fireworks inner tube cake bright bead detonation device according to an embodiment of the present invention.

[0032] Figure 9 This is a schematic diagram of the operation and coordination of the propellant box and scraper in the propellant loading device for the inner tube of fireworks according to an embodiment of the present invention.

[0033] The labels in the diagram represent:

[0034] a. Inner cylinder cake; 1. Frame; 2. Drug filling box; 21. Loading frame; 22. Suspension seat; 23. Fixed seat; 24. Feed inlet; 25. Anti-stacking slope; 3. Swinging power mechanism; 31. Swinging electric cylinder; 32. Electric cylinder actuating rod; 4. Connecting mechanism; 41. Suspension fixed plate; 42. Primary suspension rod; 43. Suspension movable plate; 441. Secondary fixed suspension rod; 442. Secondary rotating suspension rod; 45. Suspension rod bearing; 5. Drug filling mold; 51. Storage template; 511. Storage hole; 52. Pull-out plate; 521. Isolation area; 522. Hollowed-out area; 523. Pull-out plate power mechanism; 53. Guide plate; 531. Guide hole; 61. Scraper; 62. Travel motor; 63. Rotating motor; 7. Swing position. Detailed Implementation

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0036] See Figure 2-4 The fireworks and firecracker inner cylinder cake filling device of the present invention includes a frame 1, a filling box 2, a swing power mechanism 3, a connecting mechanism 4, a filling mold 5 and a scraping mechanism. The filling mold 5 is suspended below the swing power mechanism 3 through the connecting mechanism 4. The scraper 61 of the scraping mechanism is provided inside the filling box 2. The filling mold 5 is provided at the bottom of the filling box 2.

[0037] The frame 1 is composed of square tubing. A suspension plate 41 is fixed to the frame 1. A swing cylinder 31 is fixed above the suspension plate 41. The cylinder's actuating rod 32 passes through the suspension plate 41 and connects to the suspension movable plate 43. One end of the primary suspension rod 42 is fixed to the suspension movable plate 43, and the other end passes through the suspension plate 41 via a suspension rod bearing 45. One end of the secondary fixed suspension rod 441 and the secondary rotating suspension rod 442 are connected to the suspension movable plate 43, and the other end is rotatably connected to the suspension seat 22 via a pin. The secondary fixed suspension rod 441 is fixedly connected to the suspension movable plate 43, and the secondary rotating suspension rod 442 is rotatably connected to the hinge joint under the suspension movable plate 43. The bottom of the medicine filling box 2 is provided with a load-bearing frame 21, which is a square frame with a hollow center. Suspension seats 22 are provided at its four corners, and a fixed seat 23 is also provided on the load-bearing frame 21. The medicine filling mold 5 is installed at the bottom of the medicine filling box 2 via the fixed seat 23.

[0038] The top right side of the loading box 2 has a rectangular feed inlet 24. Inside the loading box 2, there is an anti-piling ramp 25 that cooperates with the scraper 61. The anti-piling ramp 25 is an arc-shaped ramp that can prevent the medicine from piling up at the corners of the loading box 2. As a preferred embodiment, an arch-breaking device that cooperates with the loading mold 5 can be added inside the loading box 2 to help the medicine fall more smoothly into the inner cylinder cake.

[0039] The scraping mechanism includes a scraper 61, a walking motor 62 and a rotating motor 63. The walking track of the walking motor 62 is located on the back of the loading box 2. The scraper 61 is suspended above the storage template 51 by the actuation rod of the rotating motor 63.

[0040] See Figure 5-8 The storage template 51, the drawer plate 52, and the guide plate 53 are stacked sequentially from top to bottom. The storage template 51 has a circular storage hole 511. The drawer plate 52 is divided into two areas: an isolation area 521 and a hollow area 522. The guide plate 53 has a guide hole 531. The drawer plate 52 is connected to a drawer plate power mechanism, which is omitted from the diagram. As a preferred embodiment, see [reference needed]. Figure 2 The pull-out plate power mechanism 523 is mounted on the load-bearing frame 21. In a preferred embodiment, a vibrator may also be installed on the guide plate 53.

[0041] When the fireworks and firecracker inner cylinder powder loading device of this embodiment is in operation:

[0042] S1: The pull plate 52 covers the storage hole 511, the right side of the medicine box 2 rises, and the mixed medicine falls into the medicine box 2 from the feed port 24;

[0043] S2: See also Figure 9 The scraper 61 moves from the right swing position 7 to the left from high to low, scraping the medicine over the storage template 51 and then stopping at the left swing position 7. The scraper 61 then swings from bottom to top and to the left along the anti-piling slope 25 and then swings back. At this time, the right side of the medicine box 2 falls and the left side rises, the original high point becomes the low point and the low point becomes the high point. The scraper 61 repeats the above action in the opposite direction, scraping the medicine over the storage template 51 from left to right and stopping at the right swing position 7. Then the scraper 61 swings from bottom to top and to the right along the anti-piling slope 25 and then swings back. At this time, the two sides of the medicine box 2 are level, making the medicine mold 5 horizontal.

[0044] S3: Move the inner cylinder cake a to below the guide plate 53, move the pull plate 52 to connect the storage hole 511 and the guide hole 531, and the medicine in the storage hole 511 falls into the inner cylinder cake a through the guide hole 531. The pull plate 52 returns to its original position to cover the storage hole 511, and the inner cylinder cake a that has been filled with medicine is removed to start the next cycle.

[0045] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for loading explosives into the inner tube of fireworks and firecrackers, characterized in that, It includes a frame (1), a drug loading box (2) and a scraping mechanism. The drug loading box (2) is connected to a driving mechanism. The driving mechanism can drive the drug loading box (2) to swing so that the bottom of the drug loading box (2) goes through an inclined stage. The scraping mechanism includes a scraping power mechanism and a scraper (61). During the scraping action in the drug loading box (2), the scraper (61) is in the inclined stage at the bottom of the drug loading box (2) for at least part of the time so that the drug falls quickly into the drug loading mold (5) at the bottom of the drug loading box (2). The bottom surface of the medicine box (2) is provided with swing positions (7) on both sides. The swing positions (7) are the positions where the scraper (61) can be close to the side wall of the medicine box (2) when it performs the swing action. The relative positional relationship between the scraper (61), the medicine mold (5) and the material box (2) is configured so that the following reciprocating motion can be realized by the control device: the scraper (61) moves from the right swing position (7) to the left, scrapes the medicine from the medicine mold (5) and reaches the left swing position (7), swings from bottom to top and to the left and then swings back. Then the scraper (61) moves in the opposite direction, scrapes from the medicine mold (5) and returns to the right swing position (7), swings from bottom to top and to the right and then swings back, completing one reciprocating scraping cycle. The scraper (61) is located inside the medicine box (2). When the medicine box (2) swings, its two ends tilt in turn, and the scraper (61) moves from high to low in the direction of tilt. The scraping power mechanism includes a walking motor (62) and a rotating motor (63), and the walking motor (62) is equipped with a walking track.

2. The fireworks and firecracker inner cylinder powder loading device according to claim 1, characterized in that, The driving mechanism includes a swing power mechanism (3) and a connecting mechanism (4). One end of the connecting mechanism (4) is connected to the swing power mechanism (3), and the other end is rotatably connected to the medicine box (2).

3. The fireworks and firecracker inner tube powder loading device according to claim 2, characterized in that, The medicine box is suspended below the drive mechanism via a connecting mechanism (4).

4. The fireworks and firecracker inner tube powder loading device according to claim 3, characterized in that, The bottom of the medicine box (2) is provided with a load-bearing frame (21), and a suspension seat (22) is provided on the load-bearing frame (21). The connecting mechanism and the suspension seat (22) are connected by a pin hinge. The medicine mold (5) is installed through the load-bearing frame (21).

5. The fireworks and firecracker inner tube powder loading device according to any one of claims 1-4, characterized in that, The loading mold (5) includes a storage template (51) with a storage hole (511), a pull plate (52) and a guide plate (53) with a guide hole (531). The guide plate (53) is located below the storage template (51), and the pull plate (52) is located between the storage template (51) and the guide plate (53).

6. The fireworks and firecracker inner tube powder loading device according to claim 5, characterized in that, The loading mold (5) includes a plate-pulling power mechanism, which is installed on the loading box (2).

7. A method for loading explosives into the inner tube of fireworks and firecrackers, characterized in that, Using the fireworks and firecracker inner cylinder powder filling device according to any one of claims 1-6 includes the following steps: S1: The loading mold (5) is closed, and one side of the loading box (2) is raised so that the loading mold (5) is tilted, and the medicine enters the loading box (2) from the higher side. S2: The scraper (61) scrapes the medicine into the filling mold (5) from high to low along the inclined direction. After the scraper (61) scrapes past the filling mold (5), it stops. The filling box (2) is adjusted to the opposite inclined state. The scraper (61) continues to scrape past the filling mold (5) in the opposite direction and returns to the initial position. The filling box (2) is adjusted to make the two sides level so that the filling mold (5) is in a horizontal state. S3: Move the inner cylinder cake (a) to the bottom of the charging mold (5), open the charging mold (5) to charge the inner cylinder cake (a), close the charging mold (5) after the charging is completed, remove the inner cylinder cake (a) that has been charged, and start the next cycle.

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