Combined firework effect piece filling device and filling method thereof

Abstract

The application discloses a combined firework effect component loading device and a loading method thereof. The device comprises an inner cylinder material arrangement assembly and a transfer pushing cylinder assembly. The transfer pushing cylinder assembly comprises a lower transfer assembly and an upper pushing cylinder assembly. A turnover material discharging structure is arranged at the front of the upper pushing cylinder assembly. A turnover distance changing assembly in the turnover material discharging structure is connected with a guide rod, a sliding block and a sliding limiting sheet. The distance between the sliding blocks is dynamically adjusted under the action of a distance changing driving element. The posture of the turnover distance changing assembly is changed from a horizontal material receiving state to a vertical material discharging state under the action of a turnover driving element. The application realizes the transfer of the inner cylinder without a carrier, automatic turnover distance changing and pushing cylinder material discharging. The problem that the existing equipment has a long production change period due to fixed hole distance is effectively solved. The flexible compatibility, production efficiency and safety of the combined firework loading are significantly improved.

Description

Technical Field

[0001] This invention relates to the technical field of fireworks production and automated machinery, and in particular to a combined fireworks effect component loading device and its loading method. Background Technology

[0002] As a mainstream category of fireworks and firecrackers, the production of combination fireworks is undergoing a transformation from traditional manual methods to semi-automation and full automation. In the assembly process of combination fireworks, accurately inserting prefabricated inner tube effect components (including various sound, color, and light effect units) into the outer tube is one of the core steps. Traditional filling methods mainly rely on manual placement, which is not only labor-intensive and inefficient, but also prone to quality problems such as misassembly and omissions when dealing with complex arrangements (such as specific patterns or timing requirements), making it difficult to meet the demands of modern, large-scale, and safe production.

[0003] Currently, some mechanized filling equipment has emerged in the industry. While it has improved speed to some extent, it still has the following significant limitations: Insufficient flexible production capacity: Existing filling devices are mostly "dedicated machines," with their positioning molds and gripping mechanisms often fixed for specific outer cylinder specifications. When manufacturers need to switch product models (e.g., changing the number of outer cylinders from 5×5 to 10×10) or change the diameter and height of the outer cylinders, the entire mechanical structure often needs to be replaced, resulting in long debugging cycles and poor compatibility. Under high-speed operation, existing equipment does not have precise enough control over the posture of the inner cylinder effect components, easily leading to blockages or overturning. Furthermore, the lack of effective detection and error correction mechanisms makes it difficult to completely eliminate mis-filling when multiple colors and effects are mixed. The operating cycle time of some automated equipment cannot fully utilize the advantages of mechanization, resulting in a low input-output ratio. Therefore, developing a combined fireworks inner cylinder filling device that can achieve high precision and quickly adapt to multiple outer cylinder specifications (flexible switching) is a technical issue that urgently needs to be addressed in the field of automated fireworks production.

[0004] Currently, the technical solutions for this process in the industry are mainly divided into two categories: manual filling and mechanized filling. Mechanized filling has gradually replaced manual filling and become the mainstream. However, existing mechanized devices still have many shortcomings and cannot meet the production needs of multi-specification compatibility, accurate and efficient filling.

[0005] Manual filling is a traditional method of inserting inner cylinders into outer cylinders. It requires no specific equipment and relies primarily on operators to manually place inner cylinders with different effects one by one into their corresponding positions on the outer cylinder. The working principle is as follows: Operators, based on production requirements, distinguish the sound and color effects of the inner cylinders, manually align the inner cylinders with the openings of the outer cylinders, insert them one by one, and correct their placement. After completing the filling of one set of outer cylinders, the next set is processed. This method requires no equipment investment, is flexible in operation, and is suitable for small-scale production scenarios with small batches and multiple specifications.

[0006] The mechanized inner cylinder filling device mainly consists of a storage and unloading unit and a transmission drive unit. The storage and unloading unit typically uses a partitioned hopper or multi-slot silo, with an internal agitator (motor-driven) to prevent jamming of the inner cylinder. A pusher plate and cylinder at the bottom facilitate directional discharge. The transmission drive unit uses a conveyor belt, chain mechanism, or screw-slider combination to move the mold between different stations to align with different numbers of filling holes. A mold shifting and guiding device is specifically used to convert the horizontally placed inner cylinder to a vertical position and feed it into the filling hole. For combination fireworks requiring multiple effects, multiple filling devices are usually arranged in series along the production line, with each device responsible for filling a specific effect component. Mechanized filling has the following disadvantages and deficiencies: Poor flexibility in switching and low specification compatibility: Existing filling devices are mostly designed for outer cylinders of specific specifications (such as fixed diameter and fixed number of rows). When the production line needs to switch to different specifications of products (such as changes in outer cylinder height, arrangement quantity, or cylinder size), it is often necessary to replace the entire filling template or make large-scale adjustments to the mechanical structure. The existing lifting and clamping mechanisms have limited adjustment ranges, making it difficult to achieve "flexible switching," resulting in long downtime for production line setup and failing to meet the flexible production needs of multiple varieties and small batches.

[0007] Insufficient reliability in filling can easily lead to missed or incorrect filling: Although an agitator is provided, at high speeds, the inner cylinder may still experience material jamming at the discharge port due to friction or improper posture. Due to the lack of real-time closed-loop detection or precise phase control, missed filling is highly likely if a material trough becomes jammed; furthermore, in multi-station series filling, even slight deviations in transmission positioning can lead to misaligned filling of effect parts.

[0008] The efficiency of loading and the degree of mechanization need to be improved: Some existing equipment uses single-row loading or intermittent movement, which limits the reciprocating motion frequency when handling large-row combination fireworks, making it difficult to significantly exceed the overall output efficiency of manual labor. At the same time, if there is a lack of smooth transition during the guiding process of the inner cylinder from horizontal to vertical, it is easy to cause damage or blockage to the inner cylinder. Summary of the Invention

[0009] To address the aforementioned problems in the prior art, the present invention provides a combined fireworks effect component loading device and a loading method thereof.

[0010] To achieve the above objectives, a combined fireworks effect component loading device is provided according to a first aspect of the present invention, comprising: Inner cylinder material handling assembly, used to arrange and convey inner cylinder effect components; The transfer pusher assembly is located at the output end of the inner cylinder material handling assembly. The transfer pusher assembly includes a lower transfer assembly and an upper pusher assembly mounted above the lower transfer assembly. The upper pusher assembly includes a pusher plate and a tilting and feeding structure located in front of the pusher plate's pushing path; the pusher plate is connected to a drive mechanism to push the inner cylinder effect component into the tilting and feeding structure. The tilting and feeding structure includes a tilting drive, a pitch-changing drive, and a tilting pitch-changing assembly; the tilting pitch-changing assembly includes a horizontally arranged guide rod and multiple sliders sequentially sleeved on the guide rod; adjacent sliders are connected by sliding limit plates; The pitch-changing drive unit is connected to the front-end slider, driving multiple sliders to slide and change pitch along the guide rod. The sliding limit plate is used to physically constrain the maximum stretching distance between adjacent sliders. The flipping drive unit is connected to the flipping pitch-changing assembly, driving the flipping pitch-changing assembly to flip between the horizontal receiving position and the vertical discharging position. By cleverly integrating the guide rod, slider, and sliding limit plate into the flipping pitch-changing assembly, the device can complete the dynamic lateral adjustment (stretching or shrinking) of the inner cylinder spacing within a single structural module during the same ticking action. This design achieves the simultaneous completion of "posture conversion" and "hole spacing alignment", greatly improving the flexibility and adaptability when facing outer cylinders of different specifications.

[0011] In some specific embodiments, the tilting and unloading structure also includes a primary lifting mechanism and a secondary lifting mechanism that work together. The primary lifting mechanism drives the tilting and unloading pitch assembly to descend as a whole, and the end of the downward track of the primary lifting mechanism is equipped with a limit adjustment block that acts as a physical stop. The secondary lifting mechanism is connected to a lifting punch, which penetrates vertically downward into the slider located at the vertical unloading position. By utilizing the coordinated operation of the primary and secondary lifting mechanisms, multi-stage height adjustment in the vertical direction is achieved, which can accurately adapt to outer cylinder drums of different heights. The direct downward pressure of the lifting punch ensures that the inner cylinder is accurately pushed deep into the outer cylinder, guaranteeing the consistency and reliability of the filling depth.

[0012] In some specific embodiments, each slider is equipped with a spring plate at its material outlet, and the spring plate is set at a wedge angle with the discharge channel inside the slider; and each slider is internally fitted with a linear bearing that is coaxial with the guide rod. The wedge-shaped spring plate at the slider outlet effectively prevents the inner cylinder from falling due to gravity after a 90-degree rotation, ensuring the safe and stable flow of materials; the introduction of the linear bearing greatly reduces the frictional resistance when the slider moves on the guide rod, ensuring efficient and smooth pitch-changing action.

[0013] In some specific embodiments, the inner cylinder material handling assembly includes an inner cylinder feeding bin, a material handling plate, and a horizontally arranged material handling arranging plate arranged sequentially from top to bottom. The upper section of the inner cylinder feeding bin is inclined, while the lower section becomes vertical. A bin door baffle for adjusting the material discharge width gap is provided at its discharge port. The material handling plate is horizontally arranged and connected to an eccentric shaft linkage mechanism to drive the material handling plate to reciprocate. Material handling punches that can move back and forth, extend downwards, and are arranged in an array are positioned directly above the material handling arranging plate. The reciprocating movement of the material handling plate driven by the eccentric shaft linkage effectively disrupts the jamming balance force when the inner cylinder is randomly piled up, ensuring uninterrupted material preparation.

[0014] In some specific embodiments, a width-adjustable bending component is provided below the inner cylinder feeding bin, which can be adjusted along the pushing direction of the feeding punch. The width-adjustable bending component is installed on the surface of the reciprocating feeding plate and is used to adjust the width gap during the feeding and falling process of the inner cylinder effect parts. Both the width-adjustable component and the bin door baffle can adjust the width gap of the feeding, so that the feeding end can be directly adjusted and adapted to inner cylinders of different diameters, preventing the inner cylinder from overturning and jamming during the feeding process from the source.

[0015] In some specific embodiments, the material handling plate has a V-shaped open structure. The upper part of the plate provides clearance for the pushing mechanism to pass laterally, and the bottom of the V-shape has a downward-through slag-draining opening. This V-shaped open structure not only provides ample clearance and operating space for the pushing mechanism above, but the slag-draining opening at the bottom also allows gunpowder slag or debris falling from the inner cylinder to drain directly, preventing jamming caused by slag accumulation and greatly improving the long-term stability of the equipment.

[0016] In some specific embodiments, the inner cylinder material handling assembly further includes a pusher plate horizontally disposed behind the material handling arrangement plate, with a pusher component fixedly connected to the back of the pusher plate; the inner cylinder material handling assembly has a primary pusher assembly and a secondary pusher assembly connected in series, and the pusher component is driven by the primary and secondary pusher assemblies to drive the pusher plate to make linear reciprocating motion on the horizontal plane through graded relay. The series coordination of the primary and secondary pusher assemblies meets the power requirements of a long horizontal conveying stroke, ensuring that multiple rows of inner cylinders are smoothly and continuously pushed from the material handling area to the transfer area.

[0017] In some specific embodiments, the pusher plate is connected to a guide rod cylinder that drives its lifting and lowering to avoid obstruction; a front row inner cylinder positioning sensor is provided at the front waiting position of the material sorting plate. The front row inner cylinder positioning sensor realizes real-time monitoring of the material discharge status and provides a precise automated trigger signal for the pushing action; the lifting cylinder design of the pusher plate enables it to lift and avoid obstruction when returning to the initial position, without interfering with the continuous material sorting of the subsequent inner cylinders.

[0018] In some specific embodiments, an inner cylinder material handling adjustment component is added below the material handling plate and in the front area of ​​the material handling arrangement plate. The inner cylinder material handling adjustment component is a component that adjusts the circumferential gap when the inner cylinder effect piece falls. The function of the inner cylinder material handling adjustment component is to prevent problems such as jamming of the effect piece during the reciprocating falling process of the material handling effect piece due to excessive gap after changing the specifications of the inner cylinder effect piece.

[0019] According to a second aspect of the present invention, a method for loading a combined fireworks effect component loading device as described above is provided, comprising: S1: Scattered inner cylinder effect parts enter the inner cylinder material sorting assembly. The inner cylinder material sorting assembly is equipped with a material sorting plate and a material sorting arrangement plate. A single orderly queue is formed on the reciprocating material sorting plate, and the parts slide down to the material sorting arrangement plate for temporary storage to form multiple rows of inner cylinder effect parts queues. S2: The pushing mechanism pushes the inner cylinder effect parts temporarily stored on the material arrangement plate to the initial receiving position of the transfer push cylinder assembly. S3: The pusher plate of the upper pusher assembly pushes the inner cylinder effect pieces row by row into the slider of the flipping and feeding structure; the flipping drive drives the flipping pitch component to flip 90 degrees to the vertical feeding position, and at the same time the pitch drive pulls the slider to slide along the guide rod to adjust the spacing of the inner cylinder effect pieces to the filling and feeding spacing of the outer cylinder. S4: The lower transfer assembly transfers the upper push cylinder assembly to the target filling position. The flipping and unloading structure descends to the top of the outer cylinder and pushes the inner cylinder effect component downward into the outer cylinder through the punch to complete the filling. After filling, the flipping and unloading assembly is reset and unfolded to enter the next cycle.

[0020] The combined fireworks effect component loading device and loading method provided in this application have the following significant advantages: This application introduces a tilting and shifting component, allowing the equipment to automatically adapt to outer cylinders with different hole spacings through the sliding block's own extension and retraction without changing the mold carrier. Combined with the width adjustment design at the material handling end and the multi-stage lifting design at the transfer end, it achieves full compatibility with different inner cylinder diameters, different arrangement densities, and different outer cylinder heights, greatly shortening the changeover and machine adjustment cycle.

[0021] The overall process of this application abandons the traditional equipment's reliance on transfer trays or carriers for material transfer. From material unloading and sorting, relay pushing, and flipping to finally filling the outer cylinder, the inner cylinder achieves a streamlined rigid or flexible direct conveying, significantly improving production cycle time and continuous operation efficiency.

[0022] The application's detailed design, including the reciprocating vibration of the material handling plate to break up accumulation, the V-shaped bottom hole of the material handling plate to leak slag, and the spring sheet inside the flip slider to prevent falling, eliminates the hidden dangers of dust accumulation, material jamming or scattering from the source, ensuring the long-term stable operation of the equipment in harsh production environments. Attached Figure Description

[0023] 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 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: Figure 1 This is a schematic diagram of the structure of a combined fireworks effect component loading device according to an embodiment of the present invention; Figure 2 This is an isometric view of the inner cylinder material handling assembly according to a specific embodiment of the present invention; Figure 3 This is a top view of the inner cylinder material handling assembly according to a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a transfer pusher assembly according to a specific embodiment of the present invention; Figure 5 This is a schematic diagram of a flipping and feeding structure according to a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a tilting and pitching component according to a specific embodiment of the present invention; Figure 7 This is a schematic diagram of a material arrangement plate according to a specific embodiment of the present invention; Figure 8 This is a schematic diagram of the inner cylinder material handling adjustment assembly according to a specific embodiment of the present invention; Figure 9 This is a flowchart of a loading method for a combined fireworks effect loading device according to an embodiment of the present invention.

[0024] Figure reference numerals: 1-Inner cylinder material handling assembly, 11-Inner cylinder feeding hopper, 111-Hybrid door baffle, 12-Material handling plate, 121-Width adjustment bending component, 122-Front row inner cylinder positioning sensor, 13-Material handling arrangement plate, 14-Material handling punch, 15-Pushing plate, 16-Pushing component, 17-First-stage pushing assembly, 18-Second-stage pushing assembly, 19-Inner cylinder material handling adjustment assembly, 2-Transfer pushing cylinder assembly, 21-Lower layer transfer 22-Upper push cylinder assembly, 221-Push cylinder plate, 23-Tilting feeding structure, 231-Tilting pitch assembly, 2311-Guide rod, 2312-Slider, 2313-Linear bearing, 2314-Sliding limit plate, 2315-Spring plate, 232-Mini cylinder, 233-Dual-axis cylinder, 234-First-stage lifting, 235-Second-stage lifting, 236-Lifting punch, 237-Limit adjustment block. Detailed Implementation

[0025] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0026] In this invention, 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 invention according to the specific circumstances.

[0027] 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 invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0028] Figure 1 A schematic diagram of the structure of a combined fireworks effect component loading device according to an embodiment of the present invention is shown, as follows: Figure 1 As shown, the device mainly consists of two parts: an inner cylinder material handling assembly 1 and a transfer pusher assembly 2, both located adjacent to each other. The inner cylinder material handling assembly 1, located on one side of the device, is primarily responsible for the initial orderly arrangement and conveying of the scattered firework inner cylinder effect components. The transfer pusher assembly 2, located at the output end of the inner cylinder material handling assembly 1, is responsible for receiving the arranged inner cylinder effect components and performing subsequent transfer and filling actions. The advantage of this device is that it allows for carrier-free transfer of the inner cylinder and enables automatic pushing of materials into the outer cylinder through the cooperation of the two components, thus achieving flexible switching of the entire process of loading the inner cylinder into the outer cylinder. To improve safety, an explosion-proof wall can be designed in the area between the inner cylinder material handling assembly 1 and the transfer pusher assembly 2, in conjunction with a lifting explosion-proof transfer window for material transfer, thereby improving the safety of the equipment.

[0029] Figure 2 An isometric view of the inner cylinder feeding assembly according to a specific embodiment of the present invention is shown, as follows: Figure 2 As shown, the inner cylinder material handling assembly is designed for single-unit loading of dual-station effect parts. An inner cylinder loading hopper 11 is located at the highest point of the entire structure to receive the inner cylinder effect parts that are loaded after the inner cylinder cakes are removed manually or by a robotic arm. The upper section of the inner cylinder loading hopper 11 is inclined to facilitate manual or robotic loading, while the lower section is vertical to facilitate the inner cylinder's entry into the lower material handling plate 12. A door baffle 111 is located at the lower outlet of the inner cylinder loading hopper 11. This door baffle 111 is positioned along the material's path and primarily adjusts the width of the inner cylinder entering the lower channel, preventing the inner cylinder from tipping over and jamming during the material handling process. Immediately below the inner cylinder loading hopper 11, a horizontally arranged material handling plate 12 is connected. The material handling plate 12 is driven by an eccentric shaft connecting rod and a motor to reciprocate, breaking the balance force that prevents the inner cylinder from accumulating and jamming, thus ensuring uninterrupted material handling for the inner cylinder. Below the inner cylinder feeding hopper 11, multiple width-adjustable bending parts 121 are installed on the surface of the material sorting plate 12. These bending parts 121 can be adjusted along the pushing direction of the material sorting punches, and are used, like the hopper door baffle 111, to adjust the width gap during the falling process of the inner cylinder effect parts, so that the inner cylinder can move downward in an orderly single row along the channel under the action of gravity. Below the material sorting plate 12, a horizontally arranged material sorting plate 13 is smoothly connected to it, which is used to securely receive the inner cylinders that slide down from the end of the material sorting plate 12 and are initially arranged in rows. In addition, a material sorting punch 14 that can move back and forth is provided at the discharge port. When the row of inner cylinders slides onto the material sorting plate 13, the material sorting punch 14 is pushed by a cylinder to push the single row of inner cylinder effect parts to the initial material sorting position.

[0030] Figure 3 A top view of the inner cylinder feeding assembly according to a specific embodiment of the present invention is shown, as follows: Figure 3 As shown, a front row inner cylinder position sensor 122 is configured at the front row waiting position of the material conveying path. This sensor can accurately sense whether the front row inner cylinder has been neatly arranged and reached the predetermined starting position, thereby providing an accurate trigger signal for subsequent automated pushing actions.

[0031] Behind the inner cylinder arrangement area, a pusher plate 15 with a straight pushing surface is arranged laterally. This pusher plate 15 is used to abut against the rear side of the row of inner cylinders to perform an overall translational pushing action. The back of the pusher plate 15 is fixedly connected to the pusher component 16, which acts as a direct transmission component, driving the pusher plate 15 to perform linear reciprocating motion on the horizontal plane. To meet the requirements of a long pushing stroke and ensure a smooth and reliable pushing process, a distributed power drive assembly is connected to the rear of the pusher component 16, specifically including a primary pusher assembly 17 and a secondary pusher assembly 18 that work in series or in coordination. Through the graded or relay drive of the primary pusher assembly 17 and the secondary pusher assembly 18, a stable and sufficient pushing force is provided to the pusher component 16 and the pusher plate 15, ensuring that the arranged inner cylinders are smoothly transferred to the next station.

[0032] Specifically, the material arrangement plate at the initial material arrangement position temporarily stores multiple rows of inner cylinder effect parts in sequence. When the positioning sensor 122 of the current row of inner cylinders detects the positioning signal, the material arrangement punch 14 stops pushing, and the material arrangement plate 12 pauses its reciprocating movement. At this time, the pusher plate 15 is pushed down into position by the guide rod cylinder, blocking the temporarily stored multiple rows of inner cylinders between the front and rear pusher components. Then, the first-stage pusher assembly 17 pushes the temporarily stored inner cylinders from the initial material arrangement position to the intermediate transition position. The pusher plate lifts to avoid the obstruction, and the first-stage pusher assembly 17 retracts to the initial material arrangement position. The pusher plate 15 descends again, and the current state is the starting position of the retraction. When the transfer end is in place, the first-stage pusher assembly 17 and the second-stage pusher assembly 18 extend simultaneously, continuing to push the temporarily stored inner cylinders located in the intermediate transition position to the end transfer receiving position. After the action is completed, the second-stage pusher assembly 18 retracts, the pusher plate 15 lifts, the first-stage pusher assembly 17 retracts to the initial position, and the material arrangement plate resumes movement to start the next cycle.

[0033] Figure 4 A schematic diagram of the structure of a transfer pusher assembly according to a specific embodiment of the present invention is shown, as follows: Figure 4As shown, the transfer pusher assembly is mainly divided into two levels in its overall structural layout. The bottom is the lower transfer assembly 21, and the upper pusher assembly 22 is mounted on top of it. The lower transfer assembly 21 is driven by a servo motor and synchronous belt, and its main function is to smoothly transfer the upper pusher assembly 22 to different filling positions of the outer cylinder (such as the first filling position or other subsequent positions). The upper pusher assembly 22, installed above the lower transfer assembly 21, mainly includes a pusher plate 221 and a tilting and unloading structure 23. When the transfer pusher assembly receives multiple rows of inner cylinder effect parts pushed from the front section (such as the intermediate transition position) at the initial receiving position, the pusher plate 221 can be driven down by its matching mini guide rod cylinder to block the rear side of the inner cylinder effect parts. Subsequently, under the drive of the servo motor and synchronous belt, the pusher plate 221 pushes the inner cylinders forward row by row in sequence, pushing only one row of inner cylinders into the front flipping and feeding structure 23 at a time, in preparation for subsequent posture conversion and filling operations.

[0034] Figure 5 A schematic diagram of a flipping feeding structure according to a specific embodiment of the present invention is shown, as follows: Figure 5 As shown, the tilting and feeding structure integrates tilting and pitch adjustment actions and two-stage lifting and loading functions. In the actuator, the tilting and pitch adjustment component 231 is pulled by a mini-cylinder 232, achieving a 90° tilt from the horizontal push-in position to the vertical punch position; simultaneously, a dual-axis cylinder 233 pushes the foremost slider, thereby pulling the rear modules one by one to adjust the spacing. For the vertical loading action, a coordinated primary lifting mechanism 234 and a secondary lifting mechanism 235 are configured.

[0035] The specific loading process of this structure is as follows: After the pusher plate pushes the single-row inner cylinder into the tilting and shifting pitch assembly 231, the tilting and shifting pitch assembly 231 simultaneously flips 90° to the punch position and retracts the pitch to the actual feeding distance. At the same time, the lower transfer mechanism transfers the entire assembly from the initial receiving position to the first loading position. At this time, if the outer cylinder stop signal is ready, the first-stage lifting 234 descends to the upper opening of the outer cylinder, and then the second-stage lifting 235 drives the lifting punch 236 to extend downward, pushing the inner cylinder effect component into the outer cylinder. After this loading is completed, the cylinders of the first-stage lifting 234 and the second-stage lifting 235 retract simultaneously, and the tilting and shifting pitch assembly 231 synchronously unfolds the pitch and flips back to the initial receiving position. After the sensor confirms that it is in place, the subsequent cycle of the target loading position can be performed. In addition, in order to ensure the end point accuracy of the lifting action, the structure is also specially equipped with a limit adjustment block 237, which reliably constrains the downward limit position through the physical stop action of the limit adjustment block 237. When it is necessary to switch the height of the outer barrel barrel to different heights, adjust the first-stage lifting mechanism to the end position of the upper opening of the outer barrel and lock the limit adjustment block 237.

[0036] Figure 6 A schematic diagram of the structure of a tilting and pitching assembly according to a specific embodiment of the present invention is shown, as follows: Figure 6 As shown, the tilting and pitch-changing assembly, as the core module for achieving dynamic pitch adjustment, has a main frame composed of a horizontally running guide rod 2311. Multiple parallel sliders 2312 are sequentially connected and mounted on the guide rod 2311. To ensure extremely high smoothness and flexibility during sliding, each slider 2312 is equipped with two linear bearings 2313. For pitch control, adjacent sliders 2312 are equipped with sliding limit plates 2314, which limit the maximum stretching distance during pitch change. When each slider 2312 retracts to the width of the slider body under the thrust of the cylinder, the inner cylinder, pushed in row by row, can be changed from the set receiving pitch to the required discharging pitch. Furthermore, at the material outlet of each slider 2312, a spring plate 2315 is designed at a wedge angle to the discharge channel. Its core function is to prevent the inner cylinder components carried inside the slider from falling due to gravity after the assembly completes a 90° tilting motion, thus ensuring absolute stability during the tilting and discharging process.

[0037] Figure 7 A schematic diagram of a material handling plate according to a specific embodiment of the present invention is shown. Referring to the foregoing figures, the material handling plate 13 serves as the bottom support foundation of this station, working in conjunction with the material handling punch 14 above to align the inner cylinder. Subsequently, the material is pushed forward by the pusher plate 15 and pusher component 16 on the rear side. Regarding specification compatibility, when the number of outer cylinder drums needs to be changed, the number of rows can be increased or decreased by opening and closing the material handling related actions; the number of columns can be increased or decreased by covering and opening the material dropping area of ​​the material handling plate 13, thereby controlling the number of inner cylinders; the maximum compatible number of arrangements in this application is 12×14. When the size of the outer cylinder drum needs to be changed, the size of a single inner cylinder also changes accordingly. The design principle of this device is: the spacing between the inner cylinders in the material handling area remains constant, and the change in spacing at the end of the process is achieved by changing the spacing through the subsequent pitch-changing component. For this reason, the material arrangement plate 13 is designed with a V-shaped open structure. The pusher 16 can pass through the upper part of the V-shape, and the opening at the bottom of the V-shape ensures that the slag falling from the inner cylinder effect component can leak out through gaps, so as not to jam the pushing operation.

[0038] Figure 8 A schematic diagram of the inner cylinder material handling adjustment assembly according to a specific embodiment of the present invention is shown, as follows: Figure 8As shown, an inner cylinder material handling adjustment component 19 is added below the material handling plate and at the front end of the material handling arrangement plate. This component is mainly used to adjust the circumferential gap when the inner cylinder effect parts fall, to prevent problems such as jamming of the effect parts during the falling process due to excessive gap after changing the specifications of the inner cylinder effect parts. In addition, as a supplement to the flexible switching scheme of the whole machine specifications, when the above-mentioned specification changes are involved, in addition to the front-end adjustment, the downstream section of the process can achieve the switching function of receiving gap and discharging gap by replacing the variable pitch component of different specifications; at the same time, in conjunction with replacing the pusher punch of different specifications and gaps, it can be ensured that the inner cylinder can accurately fall into the outer cylinder hole.

[0039] Continue to refer to Figure 9 , Figure 9 A flowchart illustrating a loading method for a combined fireworks effect component loading device according to an embodiment of the present invention is shown, as follows: Figure 9 As shown, the filling method specifically includes: S1: Scattered inner cylinder effect parts enter the inner cylinder material sorting assembly. The inner cylinder material sorting assembly is equipped with a material sorting plate and a material sorting arrangement plate. A single orderly queue is formed on the reciprocating material sorting plate, and the parts slide down to the material sorting arrangement plate for temporary storage, forming multiple rows of inner cylinder effect parts queues.

[0040] In a specific embodiment, the disassembled inner cylinder effect parts are manually or mechanically loaded into the inner cylinder feeding hopper, which has an upper inclined section and a lower vertical section. After the feeding flow and width are controlled by the hopper door baffle, the parts fall onto the horizontally set material sorting plate. The eccentric shaft connecting rod drives the material sorting plate to reciprocate, thereby breaking the balance force of the inner cylinder stacking and jamming. Under the action of gravity, the inner cylinder effect parts slide down in an orderly manner in a single row onto the material sorting plate with a V-shaped open structure, following the gap defined by the width adjustment bending parts on the material sorting plate, which can be adjusted along the pushing direction. The material sorting punch, driven by a cylinder, pushes the single row of inner cylinders to the initial pushing position. After repeated cycles, the parts are temporarily stored on the material sorting plate to form a queue of multiple rows of inner cylinder effect parts to be pushed.

[0041] S2: The pushing mechanism will push the inner cylinder effect parts temporarily stored on the material arrangement plate to the initial receiving position of the transfer push cylinder assembly.

[0042] In a specific embodiment, when the front row inner cylinder positioning sensor detects a signal indicating that multiple rows of inner cylinders have been temporarily stored, the material handling punch stops pushing material, and the material handling plate simultaneously pauses its movement. The guide rod cylinder drives the pusher plate to descend into position, blocking the temporarily stored multiple rows of inner cylinders between the front and rear sets of pushers. First, the primary pusher assembly moves, pushing the temporarily stored inner cylinders from the initial material handling position to the intermediate transition position. Then, the pusher plate rises to avoid the obstruction, and the primary pusher assembly retracts. When the transfer pusher assembly returns to the initial receiving position, the pusher plate descends again, and the primary and secondary pusher assemblies extend simultaneously, pushing the temporarily stored inner cylinders located in the intermediate transition position to the initial receiving position of the end transfer pusher assembly. After the operation is completed, the secondary pusher assembly retracts, the pusher plate rises, the primary pusher assembly retracts, and the material handling plate resumes its reciprocating movement and enters the next material handling cycle.

[0043] S3: The pusher plate of the upper pusher assembly pushes the inner cylinder effect pieces row by row into the slider of the flipping and feeding structure; the flipping drive drives the flipping pitch component to flip 90 degrees to the vertical feeding position, and at the same time the pitch drive pulls the slider to slide along the guide rod, adjusting the spacing of the inner cylinder effect pieces to the filling and feeding spacing of the outer cylinder.

[0044] In a specific embodiment, after the transfer pusher assembly receives the multiple rows of inner cylinder effect parts, the pusher plate of the upper pusher assembly is driven by a cylinder to descend and block the rear side of the inner cylinder. Under the transmission of the servo motor and synchronous belt, only one row of inner cylinder effect parts is pushed forward and precisely into the interior of each slider of the flipping and feeding assembly at a time. Subsequently, a mini cylinder acts as the flipping drive, pulling the flipping pitch component to flip 90 degrees to the vertical punch position. During the flipping process, the spring plate at the slider exit prevents the inner cylinder from falling due to gravity. At the same time, a dual-axis cylinder acts as the pitch drive, pushing the foremost slider to pull the rear sliders one by one to retract and slide on the guide rod. When each slider is retracted to the body width under the physical constraint of the sliding limit plate, the original receiving distance can be accurately converted into the actual required filling and feeding distance.

[0045] S4: The lower transfer assembly transfers the upper push cylinder assembly to the target filling position. The flipping and unloading structure descends to the top of the outer cylinder and pushes the inner cylinder effect component downward into the outer cylinder through the punch to complete the filling. After filling, the flipping and unloading assembly is reset and unfolded to enter the next cycle.

[0046] In a specific embodiment, while the tilting and retracting pitch-changing component performs tilting and retraction pitch-changing actions, the lower transfer mechanism, via synchronous belt drive, moves the upper push cylinder component from the initial receiving position to the target filling position (such as the first filling arrangement position). Once the outer cylinder stop signal is received, the first-stage lifting cylinder drives the tilting and unloading structure to descend to the upper opening of the outer cylinder (its downward limit position is preset and locked by the limit adjustment block). Then, the second-stage lifting cylinder drives the lifting punch to extend downwards, precisely pushing the inner cylinder effect component inside the slider into the outer cylinder. After this filling is completed, the first and second-stage lifting cylinders retract simultaneously, and the tilting and retracting pitch-changing component synchronously completes the unfolding pitch-changing and tilting back to the horizontal push-in receiving position. After the sensors confirm that each cylinder has reset to its position, the lower transfer mechanism transfers the component to the next target filling position (such as the second filling arrangement position) and repeats the above actions until all arrangement positions are filled.

[0047] This invention proposes a combined fireworks effect component loading device and method. Through the coordinated operation of an inner cylinder material handling component and a transfer and pushing component, a fully automated, carrier-free assembly line operation is achieved, from material handling and relay pushing to posture flipping and final insertion into the inner cylinder. By introducing a flipping and adjusting distance component, within the same action cycle of flipping the horizontally arranged inner cylinders to a vertical loading posture, a cylinder-driven slider slides along a guide rod and, in conjunction with a limiting plate, dynamically and automatically adjusts the spacing between the inner cylinders, thereby precisely adapting to outer cylinders of different specifications and hole spacings. This application not only fundamentally solves the industry pain points of traditional "dedicated machine for dedicated use" equipment, which suffers from long production changeover cycles and poor compatibility due to fixed hole spacing, but also significantly improves the flexible switching capability and overall loading efficiency of multi-specification fireworks production. Furthermore, combined with a unique material handling anti-jamming design and physical explosion-proof isolation layout, it significantly ensures long-term stable operation and production safety in special operating environments.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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.

[0049] 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.

[0050] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for loading combined fireworks effect components, characterized in that, include: Inner cylinder material handling assembly, used to arrange and convey inner cylinder effect components; A transfer pusher assembly is provided at the output end of the inner cylinder material handling assembly. The transfer pusher assembly includes a lower transfer assembly and an upper pusher assembly mounted above the lower transfer assembly. The upper pusher assembly includes a pusher plate and a tilting and feeding structure located in front of the pusher plate's pushing path; the pusher plate is connected to a drive mechanism to push the inner cylinder effect component into the tilting and feeding structure. The flipping and feeding structure includes a flipping drive, a variable pitch drive, and a flipping variable pitch assembly; the flipping variable pitch assembly includes a horizontally arranged guide rod and a plurality of sliders sequentially sleeved on the guide rod; a sliding limit piece is connected between adjacent sliders; The pitch-changing drive is connected to the slider at the front end, driving multiple sliders to slide and change pitch along the guide rod. The sliding limit plate is used to physically constrain the maximum stretching distance between adjacent sliders. The flipping drive is connected to the flipping pitch-changing assembly, driving the flipping pitch-changing assembly to flip between the horizontal receiving position and the vertical discharging position.

2. The combined fireworks effect component loading device according to claim 1, characterized in that, The flipping and feeding structure also includes a primary lifting mechanism and a secondary lifting mechanism that work together. The primary lifting mechanism is used to drive the flipping and feeding component to descend as a whole, and the end of the downward track of the primary lifting mechanism is provided with a limit adjustment block that acts as a physical stop. The secondary lifting mechanism is connected to a lifting punch, which penetrates vertically downward into the slider located at the vertical feeding position.

3. The combined fireworks effect component loading device according to claim 1, characterized in that, Each slider is equipped with a spring plate at its material outlet, and the spring plate is set at a wedge angle with the material outlet channel inside the slider; and each slider is equipped with a linear bearing that is coaxially engaged with the guide rod.

4. The combined fireworks effect component loading device according to claim 1, characterized in that, The inner cylinder material handling assembly includes an inner cylinder feeding bin, a material handling plate, and a horizontally arranged material handling plate arranged sequentially from top to bottom; the upper section of the inner cylinder feeding bin is inclined, and the lower section is vertical, and a bin door baffle for adjusting the material discharge width gap is provided at its discharge port; the material handling plate is horizontally arranged and connected to an eccentric shaft linkage mechanism to drive the material handling plate to reciprocate; material handling punches that can move back and forth, extend downward and are arranged in an array are arranged directly above the material handling plate.

5. A combined fireworks effect component loading device according to claim 4, characterized in that, Below the inner cylinder feeding bin is a width-adjustable bending component that can be adjusted along the pushing direction of the feeding punch. The width-adjustable bending component is installed on the surface of the reciprocating feeding plate and is used to adjust the width gap during the feeding and falling process of the inner cylinder effect parts.

6. The combined fireworks effect component loading device according to claim 4, characterized in that, The material handling plate has a V-shaped open structure. The upper part of the material handling plate has a clearance space for the pushing mechanism to pass laterally, and the bottom of the V-shaped open structure of the material handling plate has a downward through slag leakage opening.

7. A combined fireworks effect component loading device according to claim 4, characterized in that, The inner cylinder material handling assembly also includes a pusher plate arranged laterally behind the material handling plate, and a pusher component is fixedly connected to the back of the pusher plate; the inner cylinder material handling assembly is provided with a primary pusher assembly and a secondary pusher assembly connected in series, and the pusher component is connected to the primary pusher assembly and the secondary pusher assembly in a transmission connection, so as to drive the pusher plate to make linear reciprocating motion on the horizontal plane through graded relay.

8. A combined fireworks effect component loading device according to claim 7, characterized in that, The pusher plate is connected to a guide rod cylinder that drives its lifting and lowering to avoid positioning; the front row waiting position of the material sorting plate is equipped with a front row inner cylinder positioning sensor.

9. A combined fireworks effect component loading device according to claim 4, characterized in that, Below the material sorting plate and in the front area of ​​the material sorting arrangement plate, an inner cylinder material sorting adjustment component is added. The inner cylinder material sorting adjustment component is a component that adjusts the circumferential gap when the inner cylinder effect part falls.

10. A method for loading a combined fireworks effect component loading device as described in any one of claims 1-9, characterized in that, include: S1: Scattered inner cylinder effect parts enter the inner cylinder material sorting assembly. The inner cylinder material sorting assembly is provided with a material sorting plate and a material sorting arrangement plate. A single orderly queue is formed on the reciprocating material sorting plate, and the parts slide down to the material sorting arrangement plate for temporary storage to form multiple rows of inner cylinder effect parts queues. S2: The pushing mechanism pushes the inner cylinder effect parts temporarily stored on the material arrangement plate to the initial receiving position of the transfer pusher assembly. S3: The pusher plate of the upper pusher assembly pushes the inner cylinder effect pieces row by row into the slider of the flipping and feeding structure; the flipping drive drives the flipping and shifting distance assembly to flip 90 degrees to the vertical feeding position, and at the same time the shifting distance drive pulls the slider to slide along the guide rod to adjust the spacing of the inner cylinder effect pieces to the filling and feeding spacing of the outer cylinder. S4: The lower transfer assembly transfers the upper push cylinder assembly to the target filling position. The flipping and feeding structure descends to the upper opening of the outer cylinder and pushes the inner cylinder effect component downward into the outer cylinder through the punch to complete the filling. After the filling is completed, the flipping and feeding assembly is reset and unfolded to enter the next cycle.

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