A single-firework integrated punching and insertion device for a firework tube.

Abstract

This utility model discloses an integrated punching and inserting device for single-shot fireworks tubes. Several punching and inserting mechanisms are arranged side-by-side on a lifting frame. Each mechanism includes a punching component, a feeding component, a cutting component, and a guiding component. The guiding component includes a needle hole cavity, a lead wire tube, and a guiding channel. The bottom ends of the needle hole cavity and the lead wire tube converge and connect to the guiding channel. The upper end of the punching needle in the punching component is connected to a lifting drive mechanism, and the lower part of the punching needle is fitted inside the needle hole cavity. The feeding component includes a clamping feeding wheel assembly correspondingly installed on the lead wire tube, which is curved in the front-back direction. The cutting component includes a cutter that extends and retracts in the front-back direction, and the cutter is positioned corresponding to the guiding channel. This device can effectively improve the punching and inserting efficiency of single-shot fireworks tubes. It also significantly reduces the width and working distance of the punching and inserting mechanisms, thereby effectively expanding the applicability of the device.

Description

Technical Field

[0001] This utility model relates to a device for drilling and inserting leads into the tube of a single-shot firework. Background Technology

[0002] Single-shot fireworks refer to fireworks that are set off individually, such as fountain fireworks. The main body of a single-shot firework is a paper tube, the bottom of which is sealed (e.g., with a mud bottom) before being filled with pyrotechnic powder. A fuse hole needs to be drilled in the side wall of the firework tube corresponding to the location of the pyrotechnic powder, and an ignition fuse needs to be inserted.

[0003] In existing technologies, the punching and insertion devices are all used for assembling combination fireworks (commonly known in the industry as assembly machines). Combination fireworks are characterized by multiple propellant tubes igniting through a single ignition via fuses between the tubes. Existing assembly machines use punching and insertion devices that bend the fuse section into an inverted U-shape, inserting the two ends of the U into the fuse holes of adjacent tubes to achieve ignition connection. However, single-shot fireworks ignite one propellant tube at a time, and the ignition fuse does not need to achieve ignition transfer between two tubes. Furthermore, the punching and insertion devices in assembly machines are mobile, moving laterally back and forth across multiple parallel tubes (tube rows) to insert each tube, resulting in low efficiency. Therefore, existing punching and insertion devices for combination fireworks are unsuitable for single-shot fireworks. Currently, the punching and insertion of single-shot fireworks tubes is still done manually, one by one, and efficiency needs improvement. Utility Model Content

[0004] To address the aforementioned drawbacks, the technical problem this utility model aims to solve is to provide a drilling and insertion device for a single-shot firework tube, effectively improving the drilling and insertion processing efficiency. To solve this technical problem, the present utility model adopts an integrated drilling and insertion device for a single-shot firework tube, characterized by comprising a lifting frame, on which several drilling and insertion mechanisms are arranged in parallel. Each drilling and insertion mechanism includes a drilling component, a feeding component, a cutting component, and a guiding component.

[0005] The guiding assembly includes a pinhole cavity, a lead wire tube, and a guiding channel. The bottom ends of the pinhole cavity and the lead wire tube converge and connect to the guiding channel. The bottom end of the guiding channel is set to correspond to the firework tube below.

[0006] The punching assembly includes a punching pin mounted on upper and lower linear guides, with the upper end of the punching pin connected to a lifting drive mechanism and the lower part of the punching pin fitted inside the needle hole cavity;

[0007] The feeding assembly includes a clamping feeding wheel group correspondingly installed on the lead wire pipeline. The lead wire pipeline is curved in the front-back direction. The clamping feeding wheel group consists of a driving wheel and a driven wheel. The driving wheel of the clamping feeding wheel group is connected to a rotary drive mechanism.

[0008] The cutting assembly includes a cutter that moves telescopically in the front-to-back direction. The cutter is positioned corresponding to the guide channel and is connected to a telescopic drive mechanism.

[0009] The beneficial effects of this invention are that multiple drilling and insertion mechanisms are integrated side-by-side on the lifting frame of the device, allowing for simultaneous drilling and insertion of fuse holes and ignition fuses into multiple single-firework tubes below, thereby effectively improving the drilling and insertion efficiency of single-firework tubes. Simultaneously, it significantly reduces the width of the drilling and insertion mechanisms and their working spacing, thus effectively expanding the applicability of the device.

[0010] In one embodiment, each punching and insertion mechanism is equipped with a left-right position adjustment mechanism. This facilitates adjusting the left-right spacing of each punching and insertion mechanism according to the diameter of the fireworks tube.

[0011] In one embodiment, the position adjustment mechanism is structured as follows: the upper end of the punching needle of each punching and insertion mechanism is mounted on the first connecting slide via a first slider; the front end of the cutter of each punching and insertion mechanism is mounted on the second connecting slide via a second slider; the rear part of the wall panel of each punching and insertion mechanism is provided with an upper slider and a lower slider, the upper slider is mounted on the third connecting slide, and the lower slider is mounted on the fourth connecting slide; the drive wheel of each punching and insertion mechanism is coaxially mounted on a rotating shaft; the first, second, third, and fourth connecting slides and the rotating shaft are fixedly mounted parallel to each other on the lifting frame; the first slider, the second slider, the upper slider, the lower slider, and the drive wheel can all be adjusted in the left and right directions along the first, second, third, and fourth connecting slides and the rotating shaft, respectively.

[0012] In one embodiment, the upper ends of the punching pins of each punching and insertion mechanism are connected to the same lifting drive mechanism via connectors; the drive wheels of each punching and insertion mechanism are coaxially mounted on a rotating shaft, which is connected to a drive motor; the cutters of each punching and insertion mechanism are connected to the same telescopic drive mechanism via connectors. This simplifies the mechanism, facilitates synchronized movement, and improves the integration of the device. Further, the upper ends of the punching pins of each punching and insertion mechanism are mounted on a first connecting slide via a first slider, which is connected to a lifting cylinder; the front ends of the cutters of each punching and insertion mechanism are mounted on a second connecting slide via a second slider, which is connected to a telescopic cylinder; the rear of the wall panel of each punching and insertion mechanism is provided with an upper slider and a lower slider, the upper slider being mounted on a third connecting slide and the lower slider on a fourth connecting slide; the drive wheels of each punching and insertion mechanism are coaxially mounted on a rotating shaft, which is connected to a drive motor; the first, second, third, and fourth connecting slides and the rotating shaft are fixedly mounted parallel to each other on the lifting frame.

[0013] The guiding assembly includes a pinhole cavity, a lead wire conduit, and a guiding channel. In one embodiment, the pinhole cavity is disposed on the guide body; the lead wire conduit consists of a delivery tube and a delivery hole, with the delivery hole disposed on the guide body; the guiding channel is disposed below the guide body, and the bottom ends of the pinhole cavity and the delivery hole on the guide body converge to connect to the guiding channel; a clamping and feeding wheel assembly is installed between the delivery tube and the delivery hole. Further, the guide body is composed of a base plate and a cover plate.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time.

[0015] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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, 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. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] It should be understood 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 only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of the punching and insertion mechanism.

[0022] Figure 2 This is a second-view structural diagram of the drilling and insertion mechanism (the cover plate and the guide head are separated).

[0023] Figure 3 This is a third-view structural diagram of the punching and insertion mechanism (with the cover plate removed).

[0024] Figure 4 This is a schematic diagram of the punching and insertion device (only one punching and insertion mechanism is installed).

[0025] Figure 5 This is a front view schematic diagram of the overall structure of the punching and insertion device (eight punching and insertion mechanisms are installed).

[0026] Figure 6This is a rear view schematic diagram of the overall structure of the punching and insertion device (eight punching and insertion mechanisms are installed). Detailed Implementation

[0027] See appendix Figure 1-6 This illustrates a specific structure of the present invention. The integrated drilling and insertion device for the single-firework tube is used to drill a lead wire hole in the side wall of the firework tube 100 and insert the ignition lead wire 200. In this example, eight firework tubes 100 are arranged side-by-side on the work panel 300 (referred to as tube row) to receive the drilling and insertion processing.

[0028] In practical operation, to achieve fully automated production, the work panel 300 can also be equipped with: a feeding mechanism for storing a large number of firework tubes; a tube-pushing mechanism for pushing the tube array; and positioning strips on both sides of the tube array to clamp it, allowing the tube array to slide neatly forward along the work panel 300. Eight firework tubes 100 fall from the feeding mechanism onto the positioning strips on the work panel 300, arranged side-by-side, and are gradually pushed forward by the pushing mechanism using a method where the rear tube array pushes the front tube array. These mechanisms and their operation are similar to existing firework assembly machines and will not be described in detail here.

[0029] The integrated drilling and insertion device includes a lifting frame 1 mounted on the work panel 300. In the example, both sides of the lifting frame 1 are provided with lead screws 101 and lifting guide optical shaft sleeves 102. The first motor 104 drives the lead screws 101 on both sides through the first belt transmission assembly 103, thereby driving the lifting frame 1 to perform linear lifting and lowering motion.

[0030] Eight punching and insertion mechanisms are arranged in parallel on the lifting frame 1. Each punching and insertion mechanism includes a punching component, a feeding component, a cutting component, and a guiding component.

[0031] The guiding assembly includes a pinhole cavity, a lead wire conduit, and a guiding channel. In this example, the pinhole cavity 201 is located on the guiding body. For ease of manufacturing, the guiding body is composed of a base plate 202 and a cover plate 203. The lead wire conduit consists of two parts: a lead pipe 204 and a lead hole 205. The lead hole 205 is located on the guiding body, and the lead wire conduit is curved in the front-to-back direction. The guiding channel 206 is fixedly located below the guiding body by a fastener 208. The bottom ends of the pinhole cavity 201 and the lead hole 205 on the guiding body converge at the confluence 207 and connect to the guiding channel 206. The bottom end of the guiding channel 206 corresponds to the firework tube 100 below.

[0032] The punching assembly includes a punching pin 303, which is mounted on the upper and lower linear guide slides 301. The lower part of the punching pin 303 is fitted inside the needle hole cavity 201. The upper end of the punching pin 303 is connected to a lifting drive mechanism: In this example, the upper ends of the punching pins 303 of each punching insertion mechanism are mounted on a first connecting slide 305 via a first slider 304. The first connecting slide 305 is connected to a lifting cylinder 306, which is mounted on the lifting frame 1. When the lifting cylinder 306 is working, it drives the eight punching pins 303 to move up and down synchronously. When the first connecting slide 305 is raised and lowered, it is guided by two guide sleeves 307.

[0033] The feeding assembly includes a clamping feeding wheel assembly correspondingly installed on the lead pipe. In this example, the clamping feeding wheel assembly is installed between the lead pipe 202 and the lead hole 203. The clamping feeding wheel assembly consists of a driving wheel 401 and a driven wheel 402. The driving wheel 401 of the clamping feeding wheel assembly is connected to a rotary drive mechanism: in this example, the driving wheels 401 of each punching and insertion mechanism are coaxially mounted on a rotating shaft 403, which is connected to a drive motor 404. The drive motor 404 is mounted on the lifting frame 1. When the drive motor 404 is working, it drives the eight driving wheels 401 to rotate synchronously through the second belt drive assembly 405 and the rotating shaft 403 in sequence.

[0034] The cutting assembly includes a cutter 501 that extends and retracts in the front-to-back direction. The cutter 501 is positioned to correspond to the gap between the guide channel 206 and the confluence portion 207 and is mounted on the front and rear linear guide slides 502. The cutter 501 is connected to a telescopic drive mechanism: In this example, the front end of the cutter 501 of each punching and inserting mechanism is mounted on a second connecting slide 504 via a second slider 503. The second connecting slide 504 is connected to a telescopic cylinder 505, which is mounted on the lifting frame 1. When the telescopic cylinder 505 is working, it drives the eight cutters 501 to extend and retract synchronously.

[0035] During operation, the eight punching needles 303 descend sequentially through the needle hole cavity 201, the confluence part 207, and the guide channel 206, punching lead wire holes in the lower firework tube 100. Then, they ascend and return to the top of the confluence part 207, keeping the confluence part 207 and the guide channel 206 unobstructed, facilitating the insertion of the lead wire into the subsequent lead feeding assembly.

[0036] Under the clamping and conveying of the drive wheel 401 and driven wheel 402, the leads drawn from the eight lead coils (not shown in the figure) are sequentially inserted into the lead holes already drilled on the firework tube below along the eight sets of guide wheels 406, lead pipe 202, lead hole 203, confluence part 207, and guide channel 206. Then, the lifting frame 1 moves upward for stroke A and stops. During the upward movement of the lifting frame 1 in stroke A, the lead feeding component keeps the lead being fed. The length of stroke A depends on the length of the ignition lead 200 remaining outside the lead hole. After the cutter 501 extends to cut the lead and retracts, the lifting frame 1 moves upward again for stroke B. During stroke B, the lead feeding stops. The length of stroke B depends on the length of the confluence part 207 and the guide channel 206. During the upward movement of stroke B, the end of the lead at the receiving end is driven back above the confluence part 207, so that the confluence part 207 and the guide channel 206 remain unobstructed, facilitating the passage of the next drilling needle.

[0037] As can be seen from the above, multiple drilling and insertion mechanisms are arranged in parallel on the lifting frame 1 of the device, which can simultaneously complete the drilling and insertion of fuse holes and insert ignition fuses into multiple single-firework tubes 100 below, thereby effectively improving the drilling and insertion efficiency of single-firework tubes.

[0038] Meanwhile, when multiple single-shot firework tubes are processed side-by-side with drilling and insertion, the side contact of adjacent firework tubes (as shown in the diagram) is the most convenient way to position and transport them neatly. In this arrangement, the distance between the lead wire holes of two adjacent tubes is determined by the tube diameter; the smaller the tube diameter, the smaller the distance. Since the drilling and insertion mechanism has a certain width in the left-right direction, this width necessitates a certain working distance between each drilling and insertion mechanism (such as the distance between adjacent drilling pins 303). When the hole distance is smaller than the working distance, firework tubes of the corresponding diameter cannot be processed using the parallel integrated processing method. Using the above scheme, on the plane where the guide channel 206 is located, the punching needle 303 moves in the vertical direction, and the lead wire and cutter 501 move in the front-back direction. There are no moving parts in the left and right directions in a single punching and inserting mechanism, so that the punching assembly, feeding assembly, cutting assembly and guiding assembly can be regarded as running on the same plane (a vertical plane with a certain width). Therefore, the width of the punching and inserting mechanism and its working distance can be greatly reduced, thereby effectively expanding the applicable range of the device. The current device can process multiple firework tubes with a diameter of not less than 24 mm in parallel.

[0039] Moreover, in the example, multiple punching needles, drive wheels, and cutters are all driven by the same drive mechanism, which not only facilitates synchronized movement but also simplifies the mechanism and effectively improves the integration of the device.

[0040] In the example, each punching and insertion mechanism is equipped with a left-right position adjustment mechanism. The structure of the position adjustment mechanism in the example is as follows:

[0041] Each wall panel 601 of the drilling and insertion mechanism is provided with an upper slider 602 and a lower slider 603 at its rear. The upper slider 602 is installed on the third connecting slide 604, and the lower slider 603 is installed on the fourth connecting slide 605. The third connecting slide 604 and the fourth connecting slide 605 are fixedly installed on the lifting frame 1.

[0042] The upper end of the punching pin 303 of each punching and insertion mechanism is mounted on the first connecting slide 305 via the first slider 304;

[0043] The drive wheels 401 of each punching and insertion mechanism are coaxially mounted on a rotating shaft 403;

[0044] The front end of the cutter 501 of each punching and insertion mechanism is mounted on the second connecting slide 504 via the second slider 503;

[0045] The first slider 304, second slider 503, upper slider 602, lower slider 603, and drive wheel 401 can all be adjusted left and right along the parallel connecting slides 305, 504, 604, and 605 and the rotating shaft 403. This facilitates adjusting the working distance of each punching and inserting mechanism in the left and right directions according to the diameter of the fireworks tube.

[0046] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in detail with reference to the accompanying drawings to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is limited only to the claims and their full scope and equivalents, and not to the specific embodiments disclosed.

Claims

1. A single-firework integrated punching and insertion device for a firework tube, characterized in that, It includes a lifting frame, on which several drilling and insertion mechanisms are arranged in parallel. Each drilling and insertion mechanism includes a drilling component, a feeding component, a cutting component, and a guiding component. The guiding assembly includes a pinhole cavity, a lead wire tube, and a guiding channel. The bottom ends of the pinhole cavity and the lead wire tube converge and connect to the guiding channel. The bottom end of the guiding channel is set to correspond to the firework tube below. The punching assembly includes a punching pin mounted on upper and lower linear guides, with the upper end of the punching pin connected to a lifting drive mechanism and the lower part of the punching pin fitted inside the needle hole cavity; The feeding assembly includes a clamping feeding wheel group correspondingly installed on the lead wire pipeline. The lead wire pipeline is curved in the front-back direction. The clamping feeding wheel group consists of a driving wheel and a driven wheel. The driving wheel of the clamping feeding wheel group is connected to a rotary drive mechanism. The cutting assembly includes a cutter that moves telescopically in the front-to-back direction. The cutter is positioned corresponding to the guide channel and is connected to a telescopic drive mechanism.

2. The integrated punching and insertion device for a single-firework tube as described in claim 1, characterized in that, Each punching and insertion mechanism is equipped with a left-right position adjustment mechanism.

3. The integrated punching and insertion device for a single-firework tube as described in claim 2, characterized in that, The position adjustment mechanism is structured as follows: the upper end of the punching needle of each punching and insertion mechanism is mounted on the first connecting slide via a first slider; the front end of the cutter of each punching and insertion mechanism is mounted on the second connecting slide via a second slider; the rear part of the wall panel of each punching and insertion mechanism is provided with an upper slider and a lower slider, the upper slider is mounted on the third connecting slide, and the lower slider is mounted on the fourth connecting slide; the drive wheel of each punching and insertion mechanism is coaxially mounted on a rotating shaft; the first, second, third, and fourth connecting slides and the rotating shaft are fixedly mounted parallel to each other on the lifting frame; the first slider, second slider, upper slider, lower slider, and drive wheel can all be adjusted in the left and right directions along the first, second, third, and fourth connecting slides and the rotating shaft, respectively.

4. The integrated punching and insertion device for a single-firework tube as described in claim 1, characterized in that, The upper ends of the punching pins of each punching and insertion mechanism are connected to the same lifting drive mechanism through connectors; the drive wheels of each punching and insertion mechanism are coaxially mounted on a rotating shaft, which is connected to a drive motor; the cutters of each punching and insertion mechanism are connected to the same telescopic drive mechanism through connectors.

5. The integrated punching and inserting device for a single-firework tube as described in claim 4, characterized in that, The upper end of the punching needle of each punching and insertion mechanism is mounted on the first connecting slide via the first slider, and the first connecting slide is connected to the lifting cylinder; the front end of the cutter of each punching and insertion mechanism is mounted on the second connecting slide via the second slider, and the second connecting slide is connected to the telescopic cylinder; the rear part of the wall panel of each punching and insertion mechanism is provided with an upper slider and a lower slider, the upper slider is mounted on the third connecting slide, and the lower slider is mounted on the fourth connecting slide; the drive wheel of each punching and insertion mechanism is coaxially mounted on a rotating shaft, and the rotating shaft is connected to the drive motor; the first, second, third, and fourth connecting slides and the rotating shaft are fixedly mounted parallel to each other on the lifting frame.

6. The integrated punching and inserting device for a single-firework tube as described in any one of claims 1-5, characterized in that, The needle hole cavity is set on the guide body; the lead tube consists of two parts: the lead tube and the lead hole, with the lead hole set on the guide body; the guide channel is set below the guide body, and the bottom ends of the needle hole cavity and the lead hole on the guide body meet and connect to the guide channel. The clamping feed wheel assembly is installed between the feed pipe and the feed hole.

7. The integrated punching and insertion device for a single-firework tube as described in claim 6, characterized in that, The guide body is composed of a base plate and a cover plate.

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