Powder raw material automatic quantitative filling device for filling firework inner cylinder

Abstract

The utility model discloses an automatic quantitative powder raw material filling device for filling firework inner barrels, which comprises a rack, a turntable device, a stock bin, a quantitative plate device, a punching needle device and a turntable positioning device, the turntable device, the stock bin and the punching needle device are arranged on the rack, the turntable device is provided with a plurality of mounting stations of the quantitative plate device, and the turntable positioning device is arranged on the mounting stations of the quantitative plate device. The quantitative plate device comprises a quantitative plate, a valve plate, a quantitative bottom plate and a quantitative plate opening and closing device, a plurality of quantitative holes are formed in the quantitative plate, through holes are correspondingly formed in the valve plate, the quantitative plate opening and closing device controls alignment or dislocation of the through holes and the quantitative holes, and raw materials are punched out of the quantitative plate through the punching needle device. Raw materials are supplemented while filling is achieved through the rotating disc structure, a plurality of firecracker cakes can be filled at the same time, the whole structure is simple and easy to maintain, and the device is simple in structure, safe, reliable, rapid, efficient and capable of reducing the cost.

Description

Technical Field

[0001] This utility model relates to the technical field of fireworks and firecrackers production equipment, and in particular to an automatic quantitative filling device for powder raw materials used for filling the inner cylinder of fireworks and firecrackers. Background Technology

[0002] In the fireworks and firecrackers production industry, the inner cylinder filling process is one of the core steps, its core task being to accurately fill the inner cylinder of the fireworks with powdered raw materials such as oxidizers and reducing agents. For a long time, this process has mainly relied on manual operation, requiring workers to directly handle flammable and explosive powdered materials. This not only results in low production efficiency and high labor intensity but also poses extremely high safety risks. Manual operation easily leads to uneven mixing of the materials and fluctuations in the filling amount, further exacerbating the explosion hazard. Although the industry has begun to introduce automated equipment to replace manual labor in recent years, existing technologies still have significant shortcomings: for example, quantitative feeding devices using rotary tables or end-face scraping methods often suffer from unreasonable structural design, making it difficult to completely clean up material residues, which can easily cause safety accidents during equipment maintenance; while translational quantitative devices suffer from insufficient sealing, leading to serious material leakage and making it difficult to increase single-machine capacity. Furthermore, existing equipment generally lacks modular design, making the replacement of quantitative units complex and posing safety hazards, and making it difficult to adapt to multi-specification production needs. The aforementioned problems have severely hampered the automation process of fireworks production, and there is an urgent need for a filling device that is accurate in quantification, efficient and safe, easy to maintain, and highly adaptable. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, the present invention provides an automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks, so as to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model proposes an automatic quantitative filling device for powder raw materials used in the inner cylinder of fireworks. The device includes a frame, a turntable, a hopper, a quantitative plate device, a punch device, and a turntable positioning device. The turntable, hopper, and punch device are mounted on the frame. The turntable has multiple mounting stations for the quantitative plate devices. Each quantitative plate device includes a quantitative plate, a valve plate, a quantitative base plate, and a quantitative plate opening and closing device. The quantitative plate has multiple quantitative holes, and the valve plate has corresponding through holes. The quantitative plate opening and closing device controls the alignment or misalignment of the through holes and quantitative holes, and the punch device ejects the raw material from the quantitative plate. By integrating the turntable, quantitative plate opening and closing device, and punch device, automatic quantitative filling of powder raw materials is achieved, reducing manual intervention and improving filling efficiency and safety. The modular quantitative plate design supports quick replacement and adapts to different production specifications.

[0005] In some specific embodiments, the silo includes two independent feed bins, a dispensing mechanism, and a level sensor. The dispensing mechanism and level sensor control the continuous feeding of the single-element drug. The dual-feed bin design, combined with the dispensing mechanism and level sensor, ensures continuous feeding of the single-element drug, avoids the risks associated with storing mixed drugs, and improves feeding stability and automation.

[0006] In some specific embodiments, a sealing strip is provided at the bottom of the hopper, and the sealing strip rotates and seals with the turntable device. The rotating seal between the sealing strip and the turntable device effectively prevents powder leakage, enhances equipment sealing, reduces the risk of dust explosion, and supports water washing cleaning processes.

[0007] In some specific embodiments, the turntable device is also equipped with a removable cleaning port. The removable cleaning port simplifies the residual drug cleaning process, reduces downtime, and lowers safety hazards during maintenance.

[0008] In some specific embodiments, the punch device includes an adjustable cylinder and a positioning pin, the positioning pin working in conjunction with the metering orifice. The combination of the adjustable cylinder and the positioning pin enables flexible adjustment and precise positioning of the punch depth, is compatible with different metering plate specifications, and improves the versatility of the equipment.

[0009] In some specific embodiments, a turntable drive device is also included. The turntable drive device is connected to the turntable device to drive the turntable device to rotate. The turntable device is provided with a filling station and a replenishment station, and the filling station and the replenishment station can be switched between each other when the turntable device rotates. The turntable drive device realizes the synchronous switching between the filling station and the replenishment station, and the replenishment and filling actions are performed alternately, which significantly improves production efficiency.

[0010] In some specific embodiments, a turntable positioning device is also included to detect whether the turntable device has reached a preset position, i.e., the metering plate device and the punch device are aligned at the filling station, and the metering plate device and the hopper are aligned at the replenishment station. By detecting the position of the turntable, the turntable positioning device ensures that the metering plate device is accurately aligned with the punch device or the hopper, reducing filling errors and improving process stability.

[0011] In some specific embodiments, the metering plate opening and closing device is a linear drive mechanism, which is connected to the valve plate. The linear drive mechanism pushes the valve plate to precisely control the alignment of the metering orifice and the through-hole, reducing powder leakage and improving metering accuracy.

[0012] In summary, the beneficial effects of this utility model compared to the prior art include:

[0013] Enhanced safety: The independent storage and filling design of single-element drugs avoids the risk of drug mixing; the sealed structure and water washing function effectively inhibit drug powder leakage and residue, reducing the risk of explosion.

[0014] High-efficiency production: The rotary table station can switch synchronously to achieve parallel feeding and filling, the dual material bins can continuously supply material, and the modular quantitative plate can be quickly replaced, which significantly improves the single machine capacity and production flexibility.

[0015] Precise control: technologies such as servo motor closed-loop drive, dual verification of positioning pins and photoelectric sensors, and adjustable punch depth ensure precise and controllable filling volume with a low error rate.

[0016] Ease of maintenance: The quick-release cleaning port, modular metering plate design, and waterproof sealing strip simplify the equipment cleaning and maintenance process, reducing downtime and maintenance costs.

[0017] Wide adaptability: By replacing the metering plate device with different specifications and adjusting the punch stroke, it can be adapted to the filling needs of various fireworks inner cylinders, thus enhancing the market application range of the equipment.

[0018] This utility model, through structural innovation and process optimization, comprehensively solves the problems of low efficiency and high risk of traditional manual filling, as well as serious leakage, difficult cleaning, and poor adaptability of existing automated equipment, providing a safe, efficient, and intelligent automated solution for fireworks and firecrackers production. Attached Figure Description

[0019] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Other features, objects, and advantages of this application will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an automatic quantitative filling device for powder raw materials used in the inner cylinder of fireworks, according to one embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of a hopper according to a specific embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a quantitative plate device according to a specific embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a punch device according to a specific embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of a turntable device according to a specific embodiment of the present invention.

[0025] Reference numerals in the attached drawings: 1-Frame, 2-Blouse, 21-Single drug inlet, 22-Blouse A, 23-Blouse B, 24-Distribution mechanism, 25-Sealing strip, 26-Blouse A level sensor, 27-Blouse B level sensor, 3-Turntable device, 31-Quick-release cleaning port, 4-Quantitative plate device, 41-Quantitative plate, 42-Valve plate, 43-Quantitative base plate, 5-Punch device, 51-Adjustable stroke cylinder, 52-Punch, 53-Positioning needle, 6-Quantitative plate opening and closing device, 7-Quantitative plate positioning device, 8-Power unit. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0029] Figure 1 A schematic diagram of an automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks, according to an embodiment of the present invention, is shown. Figure 1As shown, the device includes a frame 1, a hopper 2, a turntable device 3, a metering plate device 4, a punch device 5, a metering plate opening and closing device 6, a metering plate positioning device 7, and a power unit 8. The frame 1 serves as the supporting foundation for the entire device, bearing all other components. The hopper 2 is mounted on the frame 1 and is used to store the powder raw materials required for fireworks production. The turntable device 3 is connected to the power unit 8, which provides rotational power to the turntable device 3, enabling it to rotate on the frame 1. The metering plate device 4 is mounted on the turntable device 3 and moves to different workstations under the drive of the turntable device 3. The punch device 5 is also mounted on the frame 1 and is used to punch the raw materials out of the metering plate. The metering plate opening and closing device 6 and the metering plate positioning device 7 are also mounted on the frame 1. The metering plate opening and closing device 6 is responsible for pushing the valve plate to control the opening and closing of the metering holes on the metering plate, and the metering plate positioning device 7 is used to accurately position the turntable device 3 at the filling station. Through the coordinated operation of these components, the automatic quantitative filling of multi-cake powder raw materials is realized, which improves production efficiency and ensures the safety of the filling process.

[0030] In specific embodiments, the quantitative plate positioning device 7 can employ servo motor closed-loop control, with the rotation angle of the turntable providing real-time feedback via an encoder; alternatively, it can utilize a mechanical locking mechanism combining servo motor torque and positioning blocks: the positioning blocks are mounted on the frame 1 and cooperate with circumferentially distributed limiters on the turntable; furthermore, it can verify positioning accuracy using photoelectric sensors, which are positioned at the filling station to detect whether the turntable has reached a preset position. Through these methods or combinations thereof, such as the combination of encoder feedback and mechanical positioning blocks, accurate positioning of the turntable during dynamic rotation and static filling can be ensured.

[0031] Figure 2 A schematic diagram of the structure of a silo according to a specific embodiment of the present invention is shown, as follows: Figure 2 As shown, the silo 2 includes a single-element drug inlet 21, hopper A 22, hopper B 23, a dispensing mechanism 24, a sealing strip 25, a hopper A level sensor 26, and a hopper B level sensor 27. The single-element drug inlet 21 is used to transport the single-element drug into the silo 2. The silo 2 is internally divided into hopper A 22 and hopper B 23, which can simultaneously replenish two metering plates. The dispensing mechanism 24 distributes raw materials between the two hoppers, controlled by two level sensors, namely hopper A level sensor 26 and hopper B level sensor 27. By monitoring the drug level in the hoppers in real time, a replenishment operation is triggered to ensure sufficient raw materials in the hoppers. The sealing strip 25 is in close contact with the turntable device 3 and is made of waterproof material to seal the raw materials in the silo 2. This not only prevents leakage but also allows the entire device to be washed, facilitating the removal of residual drugs and improving the safety and ease of cleaning of the equipment.

[0032] Figure 3A schematic diagram of a quantitative plate device according to a specific embodiment of the present invention is shown, as follows: Figure 3 As shown, the metering plate device 4 includes a metering plate 41, a valve plate 42, and a metering base plate 43. The metering plate 41 is provided with multiple metering holes and is a key component for realizing the metering of raw materials. The valve plate 42 is provided with multiple through holes corresponding to the metering holes. The metering plate opening and closing device 6 pushes the valve plate 42, so that the metering holes on the metering plate 41 are misaligned or aligned with the through holes on the valve plate 42 and the metering base plate 43. When the metering holes and through holes are aligned, a filling channel is formed, which facilitates the punch to eject the raw materials; when they are misaligned, the filling channel is closed to prevent raw material leakage. The metering plate device 4 adopts a modular design, and metering devices with different hole specifications can be designed according to product specifications, which facilitates overall replacement and can quickly adapt to the production needs of different products, improving the versatility of the equipment.

[0033] Figure 4 A schematic diagram of a punch device according to a specific embodiment of the present invention is shown, as follows: Figure 4 As shown, the punch device 5 includes a stroke-adjustable cylinder 51, a punch 52, and a positioning pin 53. The stroke-adjustable cylinder 51 is used to set the insertion depth of the punch 52. By adjusting the stroke-adjustable cylinder 51, the insertion depth of the punch 52 into the metering plate device 4 can be easily adjusted, thereby accommodating different metering plate devices 4 with the same aperture and improving the applicability of the punch device 5. The positioning pin 53 is inserted into the metering plate device 4 to determine the position of the metering hole, ensuring that the punch 52 can accurately punch the raw material out of the metering hole, thus ensuring the accuracy of filling.

[0034] Figure 5 A schematic diagram of the structure of a turntable device according to a specific embodiment of the present invention is shown, as follows: Figure 5 As shown, the turntable device 3 is equipped with a quick-release cleaning port 31, which facilitates rapid cleaning of residual drugs, improves the efficiency of equipment cleaning, and reduces the safety hazards caused by drug residues. The turntable device 3 is equipped with multiple mounting positions for metering plates 4, which have the function of simultaneously filling material with the punching device 5 while one metering plate 4 is being replenished in the hopper 2, realizing the synchronous operation of filling and replenishment, and further improving production efficiency.

[0035] In one specific embodiment, the filling method of the above-mentioned filling device specifically includes:

[0036] S1: The turntable device rotates under the action of the turntable drive device, moving the quantitative plate device to the corresponding feeding station in the hopper;

[0037] S2: Control the material distribution mechanism of the silo to alternately supply material to two independent material bins, and monitor the amount of medicine in the material bins in real time through the material level sensor to trigger the replenishment operation;

[0038] S3: The metering plate opening and closing device pushes the valve plate to align the metering hole of the metering plate with the through hole of the valve plate, forming a filling channel;

[0039] S4: The turntable device rotates to the filling station corresponding to the punch device. After the position of the metering hole is determined by the positioning pin, the punch is driven by the stroke adjustable cylinder to punch the raw material out of the metering hole.

[0040] S5: After filling is completed, the metering plate opening and closing device pushes the valve plate to reset, causing the metering hole and the through hole to be misaligned, thus closing the filling channel.

[0041] In some specific embodiments, after loading is completed, the residual drug in the turntable device is cleaned through a detachable cleaning port provided on the turntable device.

[0042] This invention provides an automatic quantitative filling device for powdered raw materials in the inner cylinder of fireworks. Through a modular quantitative plate device, a dual-hopper continuous feeding system, a servo-driven turntable for synchronous station switching, an adjustable-stroke punch for precise filling, and a quick-release cleaning port design, it achieves safe filling of single-element drugs, efficient production of multiple firework cakes, and convenient cleaning of residual drugs. The solution completely solves the dangers of traditional manual operation and the leakage and cleaning problems of existing equipment. It combines the advantages of high precision, high safety, and low maintenance costs, providing a standardized intelligent filling solution for the fireworks industry.

[0043] In this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0045] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An automatic quantitative filling device for powder raw materials used in the inner cylinder of fireworks, characterized in that, The device includes a frame, a turntable assembly, a hopper, a metering plate assembly, a punch assembly, and a turntable positioning device. The turntable assembly, the hopper, and the punch assembly are mounted on the frame. The turntable assembly has multiple mounting stations for the metering plate assembly. The metering plate assembly includes a metering plate, a valve plate, a metering base plate, and a metering plate opening and closing device. The metering plate has multiple metering holes, and the valve plate has corresponding through holes. The metering plate opening and closing device controls the alignment or misalignment of the through holes and the metering holes, and the punch assembly punches the raw material out of the metering plate.

2. The automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 1, characterized in that, The silo includes two independent material bins, a dispensing mechanism, and a level sensor. The dispensing mechanism and the level sensor control the continuous feeding of the single-element drug.

3. The automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 2, characterized in that, The bottom of the hopper is equipped with a sealing strip, which rotates and seals with the turntable device.

4. The automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 1, characterized in that, The turntable device is also equipped with a detachable cleaning port.

5. The automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 1, characterized in that, The punch device includes a stroke-adjustable cylinder and a positioning needle, which works in conjunction with the metering orifice.

6. The automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 1, characterized in that, It also includes a turntable drive device, which is connected to the turntable device to drive the turntable device to rotate. The turntable device is provided with a filling station and a replenishing station, and the filling station and the replenishing station can be switched between each other when the turntable device rotates.

7. An automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 6, characterized in that, It also includes a turntable positioning device for detecting whether the turntable device has reached a preset position, that is, the quantitative plate device and the punch device are matched and working at the filling station, and the quantitative plate device and the hopper are matched and working at the replenishment station.

8. The automatic quantitative filling device for powder raw materials for filling the inner cylinder of fireworks according to claim 1, characterized in that, The metering plate opening and closing device is a linear drive mechanism, which is connected to the valve plate.

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