An automatic fireworks filling production equipment

Abstract

This invention discloses an automatic fireworks filling production equipment. By integrating a conveyor belt, a feeding device, a filling device, and a transfer device, it achieves fully automated continuous production of the inner tube of combined fireworks from feeding, filling of bright beads, filling of gunpowder, filling of sealing powder to transfer, without manual intervention, significantly reducing labor intensity and safety hazards. The filling device adopts a combined structure of "quantitative temporary storage space + weighing module + material distribution module" to ensure accurate and controllable material filling amount and improve the consistency of product setting effect. The horizontal transfer mechanism of the transfer device works in conjunction with the segmented lifting mechanism to achieve precise positioning and efficient transfer of the inner tube between each filling station, avoiding filling misalignment and further improving production efficiency and product qualification rate.

Description

Technical Field

[0001] This invention specifically relates to an automatic fireworks filling production equipment. Background Technology

[0002] In the fireworks production process, the filling process of the inner tube of the combined fireworks (including the sequential filling of bright beads, gunpowder, and sealing powder) is the core step, which directly affects the setting effect and safety of the fireworks. In existing technologies, the filling of the inner tube of combination fireworks largely relies on manual operation or semi-automated equipment. Manual filling requires workers to manually load the bright beads, gunpowder, and sealing powder into multiple material cavities of the inner tube sequentially. This is not only labor-intensive and inefficient, but also poses a significant safety hazard due to the direct contact of flammable and explosive materials like gunpowder with the human body. While semi-automated equipment can partially replace manual labor, it has significant drawbacks: First, the filling devices are mostly specialized structures, requiring separate filling equipment for bright beads, gunpowder, and sealing powder, resulting in high equipment costs, large space requirements, and cumbersome process switching. Second, the quantitative filling accuracy is poor, often employing a volumetric quantitative method, which cannot accurately control the material loading amount, leading to inconsistent fireworks display effects. Third, there is a lack of efficient transfer mechanisms; the transfer of the inner tube between filling processes requires manual assistance or simple mechanical handling, resulting in low positioning accuracy and a tendency for filling misalignment, further affecting product quality. Summary of the Invention

[0003] In view of the deficiencies of the existing technology, the technical problem to be solved by the present invention is to provide an automatic fireworks filling production equipment.

[0004] An automatic fireworks filling production equipment includes: a frame on which a conveyor belt is mounted; a feeding device, which includes a feeding device mounted on the frame and above the conveyor belt for feeding the inner tubes of combined fireworks one by one onto the conveyor belt; and a filling device, which includes a bright bead filling device, a gunpowder filling device, and a sealing powder filling device arranged sequentially on the frame, wherein the bright bead filling device, the gunpowder filling device, and the sealing powder filling device have the same structure. A bright bead filling device includes a housing with upper and lower openings. A mold base is provided inside the housing. Several feeding holes are provided through the mold base corresponding to multiple material cavities of the combined firework inner tube. A cover plate is rotatably provided in each feeding hole. The cover plate is closed to form a fixed amount of temporary storage space in the feeding hole. A first driving member is provided between the mold base and the housing to drive the cover plate to flip so that the feeding hole is opened or closed. A circular guide cylinder is provided on the upper side of the mold base to surround the several feeding holes. The upper end of the circular guide cylinder is provided with a feeding port. A material distribution module and a weighing module are respectively provided on the circular guide cylinder. A weighing module includes a buffer box with upper and lower openings and a first support frame, and a weighing sensor disposed between the buffer box and the first support frame. The first support frame is disposed on a circular guide cylinder. The lower opening of the buffer box is aligned and connected to the feed inlet. A discharge plate and a second driving component are respectively disposed on the buffer box. The discharge plate is rotatably disposed at the lower end of the buffer box and can close or open its lower inner opening. The second driving component is connected to the discharge plate and can drive the discharge plate to open and close relative to the buffer box. A material distribution module includes a first motor disposed on a circular guide cylinder and a connecting shaft disposed on the drive shaft of the first motor. The connecting shaft is rotatably disposed inside the circular guide cylinder through bearings and is coaxial with the circular guide cylinder. One end of the connecting shaft is provided with a connecting strip arranged radially with the circular guide cylinder. The connecting strip is provided with bristles that can abut against the mold base. A transfer device is disposed on a frame and includes a horizontal transfer mechanism, a one-stage lifting mechanism, and a two-stage lifting mechanism respectively disposed on it. A horizontal transfer mechanism includes a third movable seat and a first cylinder for driving the third movable seat to move. The third movable seat is movably mounted on the frame via a slide rail slider. N first clamping mechanisms are evenly distributed and spaced along the transverse direction of the third movable seat. The first clamping mechanism includes a third double-headed cylinder mounted on the third movable seat and third clamping plates symmetrically mounted on the drive shafts on both sides of the third double-headed cylinder.The two-stage lifting mechanism includes N-1 lifting platforms evenly spaced along the transverse direction of the frame. Each lifting platform is located directly below the bright bead filling device, the gunpowder filling device, and the sealing powder filling device. A second clamping mechanism is also correspondingly arranged with each lifting platform. A pneumatic drive component is provided between the frame and the lifting platforms to drive the two-stage lifting of the lifting platforms. The pneumatic drive component includes a second cylinder and a third cylinder. The second cylinder is located on the lower side of the lifting platform, and a connecting block is provided on the drive shaft of the second cylinder. The third cylinder is located on the frame and is opposite to the second cylinder. The drive shaft of the third cylinder is connected to the connecting block. A single-stage lifting mechanism is provided on the frame and located on both sides of the two-stage lifting mechanism. One of the single-stage lifting mechanisms is connected between the conveyor belt and the two-stage lifting mechanism. It includes a receiving platform and a fourth cylinder on the frame that drives the receiving platform to move up and down. The distance between the receiving platform and its adjacent lifting platform is equal to the distance between the two adjacent lifting platforms. A pushing mechanism, mounted on a frame and located at the output end of the conveyor belt, pushes the inner tube of the combined fireworks on the conveyor belt to the receiving platform. It includes a slider, a fourteenth cylinder, and a fifteenth cylinder. The slider is movably mounted on the frame and can reciprocate along the conveying direction of the conveyor belt. The fourteenth cylinder is mounted on the frame to drive the slider's displacement. The fifteenth cylinder is mounted on the slider, and a pusher block is mounted on the drive shaft of the fifteenth cylinder, which drives the pusher block to move up and down.

[0005] In one embodiment, the first driving component includes a plurality of rotating shafts and transmission blocks respectively disposed at one end of the rotating shafts, and a fifth cylinder disposed on the housing. The plurality of rotating shafts pass through a plurality of material discharge holes located on the same axis, and the rotating shafts are rotatably disposed on the mold base by bearings. Cover plates located on the same axis are respectively fixedly connected to the rotating shafts. One side of the transmission block has a protrusion, the center of which is eccentrically disposed relative to the center of the rotating shaft. The drive shaft of the fifth cylinder is provided with a first connecting seat, one side of which has a horizontally recessed drive groove, and the protrusion is movably disposed in the drive groove. The protrusion is circular in shape and is rotatably connected to the transmission block.

[0006] In one embodiment, the second driving component includes a sixth cylinder, a first hinge block, and a second hinge block. The first hinge block is hinged to one side of the buffer box, the sixth cylinder is disposed on the first hinge block, and the second hinge block is disposed on the drive shaft of the sixth cylinder and hinged to the unloading plate.

[0007] In one embodiment, the housing has a slot communicating with its inner cavity on one side, and support flanges are respectively provided on the inner walls of the two sides of the housing in the slot. The mold base is inserted into the slot and presses against the support flanges. The mold base and the housing are connected by a bag buckle.

[0008] In one embodiment, the feeding device includes a second support frame, on which a placement space is formed for positioning and stacking the inner tubes of the combined fireworks. A feeding port is provided through the lower end of the placement space. An opening and closing structure is provided on the second support frame to close or open the feeding port. A first movable seat and a driving component that can drive the first movable seat to move up and down are respectively provided in the second support frame. A clamping component that can clamp the inner tubes of the combined fireworks in the placement space is provided on the first movable seat. The opening and closing structure includes two baffles and a seventh cylinder connected to each baffle. The two baffles are movably disposed on the second support frame by sliding rails and sliders. The two seventh cylinders drive the baffles to move so that the two baffles move closer or further apart. The clamping component includes a first double-headed cylinder disposed on the first movable seat and a first clamping plate disposed on each of the two drive shafts of the first double-headed cylinder.

[0009] In one embodiment, the drive assembly includes an eighth cylinder, a ninth cylinder, a second movable seat, and a third movable seat. The second and third movable seats are respectively movably mounted on a second support frame. The eighth cylinder is mounted on the second support frame, and its drive shaft is connected to the second movable seat. The ninth cylinder is mounted on the second movable seat, and its drive shaft is connected to the third movable seat. The third movable seat is connected to the first movable seat by a steel cable.

[0010] In one embodiment, the conveyor belt includes a frame and a plurality of drive rollers rotatably disposed on the frame at intervals. The drive rollers located at the upper part are evenly distributed along the same horizontal axis. A conveyor belt is sleeved between the drive rollers for transmission. A second motor capable of driving one drive roller to rotate is provided on one side of the frame. The frame has symmetrical through slots on both sides, and a movable shaft is movably disposed in the slot. One drive roller is rotatably sleeved on the movable shaft through a bearing. A plurality of lifting components are arranged at intervals along the same horizontal axis on the frame. The lifting components include a tenth cylinder and a top plate disposed on the drive shaft of the tenth cylinder. The top plate is located below the conveyor belt and can be driven by the tenth cylinder to lift the conveyor belt.

[0011] In one embodiment, a stacking device is further included. The stacking device includes two or more first guide shafts arranged laterally at intervals on a frame. A first movable seat is movably sleeved on the first guide shaft via a linear bearing. The first movable seat is respectively provided with a second clamping mechanism and an eleventh cylinder for driving the second clamping mechanism to move up and down. The frame is provided with a driving member capable of driving the first movable seat to move axially along the first guide shaft. The second clamping mechanism includes a second movable seat, a second connecting seat, a first proximity switch, a second double-headed cylinder, and two second clamping plates. The second connecting seat is disposed on the drive shaft of the eleventh cylinder. The second movable seat is movably disposed on the second connecting seat. The first proximity switch is disposed on the second connecting seat and can sense and cooperate with the upwardly moving second movable seat. The second double-headed cylinder is disposed on the second movable seat. The two second clamping plates are symmetrically disposed on the two drive shafts on both sides of the second double-headed cylinder. The driving component includes a twelfth cylinder and a thirteenth cylinder respectively mounted on the frame. The drive shaft of the twelfth cylinder is connected to a first movable seat to drive the first movable seat to move axially along a first guide shaft. A fixed shaft is connected to the drive shaft of the thirteenth cylinder. The fixed shaft passes through the first movable seat via a linear bearing. A second limiting block that can abut against the first movable seat is provided on the fixed shaft. A first magnetic switch, a second magnetic switch, and a third magnetic switch that can cooperate with the magnetic ring on its piston are respectively provided on the twelfth cylinder along its driving direction. A limiting rod that can abut against the first movable seat is provided on the frame. When the limiting rod abuts against the first movable seat, the drive shafts of both the twelfth and thirteenth cylinders are in the initial retracted working state.

[0012] In one embodiment, a plurality of second guide shafts are spaced apart on the second movable seat. The second guide shafts are movably inserted into the second connecting seat via linear bearings. A first limiting block is provided on the second guide shaft above the second connecting seat. The first limiting block abuts against the upper side of the second connecting seat. The second guide shaft can be sensed and cooperated with a first proximity switch.

[0013] In one embodiment, a connecting plate is provided on one side of the first movable seat, and an opening is provided through the connecting plate. A blocking member is movably arranged on the connecting plate via a slide rail slider. A sixteenth cylinder capable of driving the blocking member to move is provided on the connecting plate. A vertical plate is connected to the second connecting seat within the opening. A baffle is provided at the upper end of the vertical plate. A hydraulic buffer capable of contacting the blocking member is provided on the baffle. A first sensor and a second sensor are spaced apart along the extension and retraction direction of its drive shaft on the eleventh cylinder. The first sensor is used to detect when the eleventh cylinder resets and rises to a safe height after sensing material picking. The second sensor is used to detect the contact position between the baffle and the blocking member when sensing the extension of the eleventh cylinder.

[0014] In summary, the advantages of this invention over the prior art are:

[0015] This invention integrates a conveyor belt, a feeding device, a filling device, and a transfer device to achieve fully automated continuous production of the inner tube of combined fireworks, from feeding, filling with bright beads, filling with gunpowder, filling with sealing powder, to transfer. This eliminates the need for manual intervention, significantly reducing labor intensity and safety hazards. The filling device employs a combined structure of "quantitative temporary storage space + weighing module + material distribution module" to ensure precise and controllable material filling, improving the consistency of the product's ignition effect. The horizontal transfer mechanism of the transfer device works in conjunction with the segmented lifting mechanism to achieve precise positioning and efficient transfer of the inner tube between each filling station, preventing misalignment and further improving production efficiency and product qualification rate. Attached Figure Description

[0016] Figure 1 This is a perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0017] Figure 2 This is one of the exploded perspective views of an automatic fireworks loading production device according to one embodiment of the present invention;

[0018] Figure 3 This is one of the cutaway views of an automatic fireworks loading production device according to an embodiment of the present invention;

[0019] Figure 4 This is a second exploded perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0020] Figure 5 This is one of the exploded views of an automatic fireworks loading production device according to one embodiment of the present invention;

[0021] Figure 6 This is the second exploded view of an automatic fireworks loading production device according to one embodiment of the present invention;

[0022] Figure 7 This is the third exploded perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0023] Figure 8 This is the fourth exploded perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0024] Figure 9 This is the fifth exploded perspective view of an automatic fireworks loading production device according to one embodiment of the present invention;

[0025] Figure 10 This is a second exploded view of an automatic fireworks loading production device according to one embodiment of the present invention;

[0026] Figure 11 This is the sixth exploded perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0027] Figure 12 This is a third exploded view of an automatic fireworks loading production device according to one embodiment of the present invention;

[0028] Figure 13 This is the seventh exploded perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0029] Figure 14 This is the eighth exploded perspective view of an automatic fireworks loading and production equipment according to one embodiment of the present invention;

[0030] Figure 15 This is the ninth exploded perspective view of an automatic fireworks loading production equipment according to one embodiment of the present invention. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0032] like Figures 1 to 15The present invention preferably provides an automatic fireworks filling production equipment, comprising: a frame 1 on which a conveyor belt 2 is provided; a feeding device 3, which includes a feeding device disposed on the frame 1 and above the conveyor belt 2, for feeding the inner tubes of combined fireworks one by one onto the conveyor belt 2; and a filling device, which includes a bright bead filling device 4, a gunpowder filling device 5 and a sealing powder filling device 6 sequentially disposed on the frame 1, wherein the bright bead filling device 4, the gunpowder filling device 5 and the sealing powder filling device 6 have the same structure. The bright bead filling device 4 includes a housing 41 with upper and lower openings. A mold base 42 is provided inside the housing 41. The mold base 42 has several material discharge holes 43 that are opened through multiple material cavities corresponding to the inner tube of the combined fireworks. A cover plate 44 is rotatably provided in each material discharge hole 43. The cover plate 44 is closed to form a certain amount of temporary storage space in the material discharge hole 43. A first driving member 7 is provided between the mold base 42 and the housing 41 to drive the cover plate 44 to flip so that the material discharge hole 43 is opened or closed. A circular guide cylinder 45 that can surround the several material discharge holes 43 is provided on the upper side of the mold base 42. The upper end of the circular guide cylinder 45 is provided with a feed port 11. A material distribution module and a weighing module are respectively provided on the circular guide cylinder 45. The weighing module includes a buffer box 8 with upper and lower openings and a first support frame 9, and a weighing sensor 10 disposed between the buffer box 8 and the first support frame 9. The first support frame 9 is disposed on a circular guide cylinder 45. The lower opening of the buffer box 8 is aligned and connected to the feed port 11. A discharge plate 12 and a second driving component 13 are respectively disposed on the buffer box 8. The discharge plate 12 is rotatably disposed at the lower end of the buffer box 8 and can close or open its lower opening. The second driving component 13 is connected to the discharge plate 12 and can drive the discharge plate 12 to open and close relative to the buffer box 8. The material distribution module includes a first motor 14 mounted on a circular guide cylinder 45 and a connecting shaft 15 mounted on the drive shaft of the first motor 14. The connecting shaft 15 is rotatably mounted inside the circular guide cylinder 45 via bearings and is coaxial with the circular guide cylinder 45. One end of the connecting shaft 15 is provided with a connecting strip 16 arranged radially with the circular guide cylinder 45. The connecting strip 16 is provided with bristles 17 that can abut against the mold base 42. The transfer device is mounted on the frame 1 and includes a horizontal transfer mechanism, a one-stage lifting mechanism, and a two-stage lifting mechanism. The horizontal transfer mechanism includes a third movable seat 18 and a first cylinder 19 for driving the third movable seat 18 to move. The third movable seat 18 is movably mounted on the frame 1 via a slide rail slider. N first clamping mechanisms 99 are evenly distributed and spaced along the transverse direction of the third movable seat 18. The first clamping mechanism 99 includes a third double-headed cylinder 97 disposed on the third movable seat 18, and a third clamping plate 98 symmetrically disposed on the drive shafts on both sides of the third double-headed cylinder 97.The two-stage lifting mechanism includes N-1 lifting platforms 21 evenly spaced along the transverse direction of the frame 1. Each lifting platform 21 is located directly below the bright bead filling device 4, the gunpowder filling device 5, and the sealing powder filling device 6. A second clamping mechanism 20 is also arranged in a corresponding manner with the lifting platforms 21. A pneumatic drive component capable of driving the lifting platforms 21 to lift in two stages is arranged between the frame 1 and the lifting platforms 21. The pneumatic drive component includes a second cylinder 22 and a third cylinder 23. The second cylinder 22 is located on the lower side of the lifting platform 21, and a connecting block 24 is provided on the drive shaft of the second cylinder 22. The third cylinder 23 is located on the frame 1 and is arranged opposite to the second cylinder 22. The drive shaft of the third cylinder 23 is connected to the connecting block 24. A single-stage lifting mechanism is installed on the frame 1 and located on both sides of the two-stage lifting mechanism. One of the mechanisms is connected between the conveyor belt 2 and the two-stage lifting mechanism. It includes a receiving platform 25 and a fourth cylinder 26 installed on the frame 1 that can drive the receiving platform 25 to move up and down. The distance between the receiving platform 25 and its adjacent lifting platform 21 is equal to the distance between two adjacent lifting platforms 21. A pushing mechanism, mounted on the frame 1 and located at the output end of the conveyor belt 2, drives the inner tube of the combined fireworks located on the conveyor belt 2 to be pushed onto the receiving platform 25. It includes a slider 91, a fourteenth cylinder 92, and a fifteenth cylinder 93. The slider 91 is movably mounted on the frame 1 and can reciprocate along the conveying direction of the conveyor belt 2. The fourteenth cylinder 92 is mounted on the frame 1 to drive the slider 91. The fifteenth cylinder 93 is mounted on the slider 91. A pusher 94 is mounted on the drive shaft of the fifteenth cylinder 93, which drives the pusher 94 to move up and down.

[0033] Specifically, after the equipment starts, the feeding device transports the stacked combination firework inner tubes one by one onto the conveyor belt. Then, through the cooperation of the pushing mechanism and the conveyor belt, the conveyor belt moves the inner tubes to the position of the pushing mechanism, and then the pushing mechanism pushes the inner tubes one by one to the one-stage lifting mechanism of the transfer device. The fourth cylinder drives the receiving platform to rise, lifting the inner tubes off the conveyor belt and positioning them. The first cylinder of the horizontal transfer mechanism drives the third moving seat to move, so that the clamping mechanism clamps the inner tubes. Then, the one-stage lifting mechanism resets, and the second and third cylinders of the two-stage lifting mechanism work together to lift the lifting platform to the corresponding filling device (bright beads / gunpowder / ) in two stages. Directly below the sealing powder filling device, ensure that the inner cylinder material cavity is aligned with the discharge hole of the mold base; during filling, the material enters through the feed inlet of the buffer box, the weighing sensor detects the weight of the material, and after reaching the set value, the second drive component drives the unloading plate to open, and the material falls into the circular guide cylinder; the motor of the distribution module drives the connecting shaft to rotate, and the connecting strip drives the bristles to rotate on the mold base, evenly distributing the material to the temporary storage space of each discharge hole; the first drive component drives the cover plate to flip, the discharge hole opens, and the material falls quantitatively into the inner cylinder material cavity; after the bright beads, gunpowder and sealing powder are filled in sequence, the transfer device transfers the inner cylinder to the next process; the three types of filling devices have the same structure, and synchronous or sequential filling can be achieved through unified control, improving the continuity of production.

[0034] The upper end of the lifting platform is provided with a number of positioning blocks 101 at intervals, and a positioning area is formed between the number of positioning blocks 101 for positioning and placing the inner tube of the combined fireworks. The first clamping mechanism 99 can clamp the inner tube of the combined fireworks in the positioning area.

[0035] The second and third cylinders in the pneumatic drive component work together to drive the lifting platform to achieve two-stage lifting, so that the lifting platform has at least three height states formed by the superposition of the two lifting strokes: the lowest height: used to receive the fireworks tubes to be processed or to collect the inner tubes of fireworks that have been filled with bulk solid materials; the middle height transfer height: matched with the clamping height of the first clamping mechanism, so that the first clamping mechanism can grab or place the fireworks tubes on the lifting platform; the highest height: adapted to the alignment and unloading of the filling device, used for receiving the filling material for the fireworks tubes.

[0036] The first support frame is fixed on the circular guide cylinder, providing stable support for the weighing module; the buffer box is suspended on the support frame by a weighing sensor, which can detect the weight of the material in the buffer box in real time.

[0037] Bulk solid materials are first injected into a buffer tank via an external conveying structure (such as a hopper), and a weighing sensor simultaneously feeds back the weight data to the control system. When the material weight reaches the preset "total weight for a single filling," the external conveying structure stops feeding, completing the quantitative weighing. The external conveying structure includes a material bin 102 located directly above the buffer tank. The lower end of the material bin 102 is provided with a discharge pipe 103 that communicates with its inner cavity. A switching valve 104 is provided on the discharge pipe 103. The switching valve 104 is a pneumatic clamp valve.

[0038] The second drive component is activated, which drives the unloading plate to rotate relative to the buffer box. The unloading plate flips from the "closed buffer box lower opening" state to the "open state". The quantitative material in the buffer box falls precisely into the feed port of the circular guide cylinder connected below through the lower opening, completing the unloading of the quantitative material.

[0039] After unloading, the second drive component drives the unloading plate to reverse and reset, resealing the lower opening of the buffer box in preparation for the next weighing. The motor is fixed on the circular guide cylinder, and its drive shaft is coaxially connected to the connecting shaft. The connecting shaft is rotatably mounted inside the circular guide cylinder via bearings, and is coaxial with the circular guide cylinder to ensure that the connecting shaft does not deviate during rotation. After the motor starts, the drive shaft drives the connecting shaft to rotate synchronously. The connecting strip at one end of the connecting shaft is arranged radially with the circular guide cylinder (i.e., the connecting strip extends along the radius of the guide cylinder). Therefore, when the connecting shaft rotates, the connecting strip will make a circular motion around the central axis of the guide cylinder, covering the entire upper surface of the mold base inside the guide cylinder. The bristles on the connecting strip abut against the surface of the mold base. With the circular motion of the connecting strip, the bristles "sweep and distribute" the material in the guide cylinder: pushing the material concentrated in the center or part of the guide cylinder evenly above each discharge hole on the mold base, ensuring that the temporary storage space of each discharge hole can be covered with sufficient material.

[0040] After material distribution, a fixed amount of material is placed over each feeding hole on the mold base. At this time, the cover plate is in the "closed feeding hole" state, forming an independent temporary storage space within the feeding hole, where the material is temporarily stored. The first drive component is activated, causing all the cover plates in the feeding holes to rotate synchronously: the cover plates rotate from the "closed state" away from the inner wall of the feeding hole, opening the "feeding channel" of the feeding hole. The fixed amount of material above each feeding hole falls vertically along the feeding hole, precisely falling into the corresponding aligned material cavity of the combined firework inner tube below (during feeding, the pneumatic drive component drives the lifting platform to its highest height, and the inner cavity opening of the combined firework inner tube is connected to the feeding hole), completing a single "fixed-quantity-uniform-precise" filling. After filling, the first drive component drives the cover plate to reverse and reset, resealing the feeding hole to prevent leakage of residual material and preparing for the next filling cycle.

[0041] Further, the first driving component 7 includes a plurality of rotating shafts 71 and transmission blocks 72 respectively disposed at one end of the rotating shafts 71, and a fifth cylinder 74 disposed on the housing 41. The plurality of rotating shafts 71 pass through a plurality of feeding holes 43 located on the same axis, and the rotating shafts 71 are rotatably disposed on the mold base 42 by bearings. The cover plates 44 located on the same axis are fixedly connected to the rotating shafts 71. One side of the transmission block 72 has a protrusion 73, the center of the protrusion 73 is eccentrically disposed relative to the center of the rotating shaft 71. The drive shaft of the fifth cylinder 74 is provided with a first connecting seat 75. One side of the first connecting seat 75 has a horizontally recessed drive groove 76, and the protrusion 73 is movably disposed in the drive groove 76. The protrusion 73 is circular in shape and is rotatably connected to the transmission block 72.

[0042] Specifically, several rotating shafts correspond to several material feeding holes coaxially distributed on the mold base, and the rotating shafts are rotatably mounted on the mold base via bearings; all cover plates on the coaxial line are fixedly connected to the same rotating shaft, that is, one rotating shaft can synchronously drive multiple cover plates on its axis to move. At the same time, a transmission block is fixed to one end of each rotating shaft, and a protrusion is provided on one side of the transmission block, which serves as a force receiving point to receive external driving force.

[0043] The drive shaft of the fifth cylinder extends, pushing the first connecting seat to move linearly; the drive groove of the first connecting seat moves synchronously, generating a thrust on the protrusion embedded therein through the groove wall. Since the protrusion is fixedly or rotatably connected to the transmission block, this thrust drives the transmission block to rotate around the axis of rotation, thereby driving the rotation shaft and the cover plate to flip synchronously, opening the discharge hole. — When the cover plate flips away from the inner wall of the discharge hole, the discharge hole opens, allowing powder to pass through; when the cover plate flips closer to the inner wall of the discharge hole and fits in place, the discharge hole closes, blocking the powder from falling.

[0044] Because the feed holes on the coaxial axis share a single rotating shaft, the eccentrically positioned protrusion can more efficiently convert external driving force into rotational torque, ensuring a more sensitive and stable response of the rotating shaft and cover plates. The movement of a single transmission block can synchronously drive all cover plates on the same axis to rotate, ensuring that the "open / close" actions of the feed holes in the same group are completely consistent, avoiding uneven powder filling caused by the delay in the movement of a single cover plate, and improving the stability and accuracy of feed control.

[0045] Furthermore, the second driving component 13 includes a sixth cylinder 31, a first hinge block 32 and a second hinge block 33. The first hinge block 32 is hinged to one side of the buffer box 8. The sixth cylinder 31 is disposed on the first hinge block 32. The second hinge block 33 is disposed on the drive shaft of the sixth cylinder 31 and is hinged to the unloading plate 12.

[0046] Specifically, after the buffer tank completes quantitative weighing, the sixth cylinder is activated, and its drive shaft extends outward. The drive shaft applies a pulling force (or pushing force, depending on the installation direction) to the unloading plate via the second hinge block. Since the unloading plate is rotatably connected to the lower end of the buffer tank, the pulling force causes the unloading plate to "flip downward" around the rotation point, gradually opening the lower opening of the buffer tank. At this time, the quantitative material inside the buffer tank falls along the opening into the feed inlet of the circular guide cylinder, completing the unloading. After unloading, the sixth cylinder drive shaft retracts, pulling the unloading plate in the opposite direction via the second hinge block, causing the unloading plate to "flip upward" around the rotation point until it completely fits the edge of the lower opening of the buffer tank, resealing the inner cavity. Simultaneously, the first hinge block can rotate slightly with the cylinder's movement to prevent jamming between the drive shaft and the unloading plate due to angular misalignment, ensuring smooth opening and closing and tight sealing of the unloading plate. This repeated extension and retraction of the sixth cylinder causes the unloading plate to repeatedly open and close, effectively preventing material from remaining on the unloading plate and affecting subsequent weighing and unloading.

[0047] Furthermore, one side of the housing 41 has a slot 34 that communicates with its inner cavity. The slot 34 has supporting flanges 35 on both sides of the inner wall of the housing 41. The mold base 42 is inserted into the slot 34 and presses against the supporting flanges 35. The mold base 42 and the housing 41 are connected by a bag buckle 36.

[0048] Specifically, one side of the shell has a slot communicating with its inner cavity, and the supporting flanges on both sides of the slot's inner wall form a horizontal supporting surface; the shape of the mold base is adapted to the slot, allowing it to be inserted into the shell along the slot, and the lower surface of the mold base can fit against the supporting flanges; the mold base and the shell are further secured by a bag-shaped fastener. The bag-shaped fastener is a relatively mature existing technology, and its structural principle will not be elaborated here. A matching mold base is selected based on the number of material cavities and aperture specifications of the inner tube of the combined fireworks to be filled.

[0049] When installing the mold base, push it horizontally into the slot of the housing until it is fully inserted. At this point, the lower surface of the mold base will naturally press against the support flanges on both sides of the slot. The support flanges provide vertical support for the mold base, ensuring that its height position on the housing is accurately fixed, while limiting vertical swaying, and ensuring that the material discharge hole on the mold base is precisely aligned with the housing and the lower inner cylinder material cavity. Meanwhile, the protrusion of the first drive component on the mold base is synchronously fitted into the drive groove of the first connecting seat.

[0050] After positioning is complete, fasten the latch between the mold base and the housing. The locking structure of the latch generates a clamping force along the slot direction, firmly fixing the mold base in the slot and preventing horizontal displacement of the mold base due to vibration or powder impact during powder filling, thus ensuring the relative position stability of the mold base and the housing.

[0051] When it is necessary to change to a different size mold base, simply unfasten the bag's buckle, pull out the old mold base along the slot in the opposite direction, and then push the new mold base into the slot and fasten the buckle. The entire process does not require disassembling bolts or other complex parts. Relying on the guiding role of the slot and the positioning role of the supporting flange, the new mold base can be quickly and accurately installed, greatly improving the efficiency of mold changing.

[0052] Furthermore, the feeding device 3 includes a second support frame 37, on which a placement space 38 is formed to position and stack the inner tubes of the combined fireworks. A feeding port 39 is provided through the lower end of the placement space 38. The second support frame 37 is provided with an opening and closing structure that can close or open the feeding port 39. The second support frame 37 is respectively provided with a first movable seat 46 and a driving component 47 that can drive the first movable seat 46 to move up and down. The first movable seat 46 is provided with a clamping component that can clamp the inner tubes of the combined fireworks in the placement space 38. The opening and closing structure includes two baffles 48 and a seventh cylinder 49 that is connected to the baffles 48 one by one. The two baffles 48 are respectively movably disposed on the second support frame 37 by sliding rail sliders. The two seventh cylinders 49 respectively drive the baffles 48 to move so that the two baffles 48 move closer or further apart. The clamping component includes a first double-headed cylinder 50 disposed on the first movable seat 46, and a first clamping plate 51 disposed on each of the two drive shafts of the first double-headed cylinder 50 respectively.

[0053] Furthermore, the drive assembly 47 includes an eighth cylinder 52, a ninth cylinder 53, a second movable seat 54, and a third movable seat 55. The second movable seat 54 and the third movable seat 55 are respectively movably mounted on the second support frame 37. The eighth cylinder 52 is mounted on the second support frame 37, and the drive shaft of the eighth cylinder 52 is connected to the second movable seat 54. The ninth cylinder 53 is mounted on the second movable seat 54, and the drive shaft of the ninth cylinder 53 is connected to the third movable seat 55. The third movable seat 55 is connected to the first movable seat 46 by a steel cable 57.

[0054] Specifically, in the initial state, the drive shaft of the eighth cylinder is in the retracted state, while the drive shaft of the ninth cylinder is in the extended state. At this time, the clamping member is aligned with the (N-1)th firework tube (the penultimate). After the clamping member completes clamping the (N-1)th firework tube (the penultimate), the drive shaft of the eighth cylinder extends, causing the clamping member on the first movable seat to move upwards. This moves the (N-1)th firework tube (the penultimate) and the firework tubes stacked above it, separating it from the Nth firework tube (the bottom) to ensure no frictional interference. Then, the opening and closing structure opens the discharge port, allowing the Nth firework tube to fall from the discharge port. After the bottom firework tube falls, the opening and closing structure resets and closes the discharge port. Then, the eighth and ninth cylinders retract synchronously. At this time, the firework tubes stacked on the clamping member move down to near the opening and closing structure, allowing a new bottom firework tube (the original N-1) to be separated. The firework tubes are attached to the closed baffle, and then released by the clamping component. The firework tubes are then stacked back onto the closed baffle. The drive shaft of the ninth cylinder extends (the eighth cylinder is retracted), driving the clamping component to reset its displacement and reposition the second to last firework tube. This cycle is repeated to stack and unload the firework tubes.

[0055] By combining the eighth and ninth cylinders in the drive assembly, the clamping component can move up and down in two stages. After the bottom firework tube falls, the remaining stack can be driven to move down as a whole, accurately reducing or eliminating the drop difference between the new bottom firework tube and the discharge port. This design avoids the impact and collision caused by the large drop of the firework tube in the traditional device, significantly reducing the risk of deformation and breakage of the thin-walled firework tube and protecting the structural integrity of the firework tube.

[0056] Two seventh cylinders drive the corresponding baffles to move, so as to move the two baffles closer or further apart, thereby opening and closing the discharge port.

[0057] The two first clamping plates are respectively set to move along the extension direction of the double-headed cylinder via slide rail sliders. The first double-headed cylinder drives the two clamping plates to move relatively closer or further apart, so as to achieve the clamping or release of the firework tube by the two clamping plates.

[0058] Furthermore, the conveyor belt 2 includes a frame 1 and a plurality of transmission rollers 58 rotatably arranged on the frame 1 at intervals. The plurality of transmission rollers 58 located at the upper part are evenly distributed along the same horizontal axis. A conveyor belt 59 is sleeved between the plurality of transmission rollers 58 for transmission cooperation. A second motor 60 capable of driving one transmission roller 58 to rotate is provided on one side of the frame 1. The frame 1 has symmetrical through-holes 61 on both sides. A movable shaft 62 is movably arranged in the movable groove 61. One of the transmission rollers 58 is rotatably sleeved on the movable shaft 62 through a bearing. A plurality of lifting components are arranged at intervals along the same horizontal axis on the frame 1. The lifting components include a tenth cylinder 63 and a top plate 64 arranged on the drive shaft of the tenth cylinder 63. The top plate 64 is located below the conveyor belt 59 and can be driven by the tenth cylinder 63 to lift the conveyor belt 59.

[0059] Specifically, the second motor acts as a power source, driving a connected drive roller to rotate after startup. Since all drive rollers are connected by a conveyor belt (the belt is fitted onto several drive rollers), when the active drive roller (the roller driven by the motor) rotates, the friction between the belt and the drive roller causes the other drive rollers to rotate synchronously, thus causing the conveyor belt to circulate along the direction of the drive rollers. At this time, the material placed on the conveyor belt is stably transported along with the belt's movement, achieving the function of horizontal material transfer.

[0060] When it is necessary to catch the fireworks tubes falling from the discharge port, the lifting mechanism starts to work:

[0061] When the tenth cylinder is activated, its drive shaft extends, causing the top plate connected to the shaft end to move upward. The top plate is located below the conveyor belt. During the upward movement, it will contact and lift the corresponding area of ​​the conveyor belt, causing the belt in that area directly below the discharge port to be lifted upward, so as to catch the firework tube falling from the discharge port and reduce the risk of damage from the impact of the falling firework tube.

[0062] Because one of the drive rollers is mounted on the movable shaft via a bearing, and the movable shaft can move freely within the movable slots on both sides of the frame, when the belt is lifted by the top plate, the local length of the belt will increase due to the bulge. At this time, the drive roller on the movable shaft will adapt by moving within the movable slot (such as moving away from the lifting point) to compensate for the change in belt length, avoid excessive tension or slack in the belt, and ensure the stability of the belt during the lifting process. After the lifting is completed, the fourth cylinder drives the shaft to retract, the top plate descends and resets, the conveyor belt returns to its original state, and the drive roller on the movable shaft also returns to its initial position according to the belt tension change, and the conveyor belt resumes normal conveying. In summary, this conveyor belt achieves basic conveying function through motor drive, and achieves local lifting and adjustment of materials through the cooperation of the lifting component and the movable shaft, taking into account both the continuity and flexibility of conveying.

[0063] Furthermore, it also includes a stacking device; the stacking device includes two or more first guide shafts 65 arranged laterally on the frame 1, and a first movable seat 66 is movably sleeved on the first guide shaft 65 via a linear bearing. The first movable seat 66 is respectively provided with a second clamping mechanism 20 and an eleventh cylinder 67 for driving the second clamping mechanism 20 to move up and down. The frame 1 is provided with a driving member that can drive the first movable seat 66 to move axially along the first guide shaft 65. The second clamping mechanism 20 includes a second movable seat 68, a second connecting seat 69, a first proximity switch 70, a second double-headed cylinder 71 and two second clamping plates 72. The second connecting seat 69 is disposed on the drive shaft of the eleventh cylinder 67, the second movable seat 68 is movably disposed on the second connecting seat 69, the first proximity switch 70 is disposed on the second connecting seat 69 and can sense and cooperate with the upwardly moving second movable seat 68, the second double-headed cylinder 71 is disposed on the second movable seat 68, and the two second clamping plates 72 are symmetrically disposed on the two sides of the drive shaft of the second double-headed cylinder 71 respectively; the driving component includes the twelfth cylinder 73 and the thirteenth cylinder 74 respectively disposed on the frame 1, the drive shaft of the twelfth cylinder 73 is connected to the first movable seat 66 to drive the first movable seat 66 to move axially along the first guide shaft 65, the drive shaft of the thirteenth cylinder 74 is connected to a fixed shaft 75, the fixed shaft 75 is inserted into the first movable seat 66 through a linear bearing, and the fixed shaft 75 is provided with a second limiting block 76 that can abut against the first movable seat 66; A first magnetic switch 77, a second magnetic switch 78, and a third magnetic switch 79 are respectively provided on the twelfth cylinder 73 along its driving direction, which can cooperate with the magnetic ring on its piston; a limiting rod 80 is provided on the frame 1, which can abut against the first moving seat 66; when the limiting rod 80 abuts against the first moving seat 66, the drive shafts of the twelfth cylinder 73 and the thirteenth cylinder 74 are both in the initial retracted working state.

[0064] Specifically, the combination of the driving component, the eleventh cylinder, and the second clamping mechanism enables the unloading and conveying of finished firework tubes. During stacking, the eleventh cylinder drive shaft moves downward, bringing the firework tubes closer to the stacking surface. When the bottom of the firework tube touches the stacking surface, the firework tube generates a reaction force that pushes the second moving seat upward relative to the second connecting seat. When the second moving seat moves upward to the detection range of the first proximity switch, the first proximity switch sends a "placed in place" signal, controlling the second double-headed cylinder drive shaft to extend, the two second clamping plates to loosen, and the firework tubes to fall smoothly to the stacking position. At the same time, the eleventh cylinder resets and moves upward, realizing the unloading, stacking, and stacking of firework tubes. Furthermore, the floating clamping structure uses a cylinder-driven method to replace the electric drive method, effectively reducing the risk of leakage from electrical components.

[0065] When finished fireworks tubes need to be unloaded and stacked, the filled fireworks tubes are driven by the horizontal transfer mechanism to the receiving platform of the one-stage lifting mechanism. When the finished fireworks tubes need to be transported from the receiving platform to the first stacking station, the finished fireworks tubes are grabbed by the second clamping mechanism and lifted to a safe height. Then, the twelfth cylinder drive shaft extends while the thirteenth cylinder remains retracted. The first moving seat is driven by the twelfth cylinder to move to a connection state that abuts against the second limit block. At this time, the piston of the second cylinder triggers the second magnetic switch, and the twelfth cylinder is stopped by the thirteenth cylinder (the thirteenth cylinder has a larger cylinder diameter than the twelfth cylinder, and the twelfth cylinder is still in the air supply state in this state). The second clamping mechanism is positioned at the first stacking station.

[0066] When it is necessary to switch from the first palletizing station to the second palletizing station, that is, after the first palletizing station is completed, the eleventh cylinder first resets upward, the twelfth and thirteenth cylinders are simultaneously in the retracted state, the second clamping mechanism resets and moves to above the receiving platform, the eleventh cylinder drives the second clamping mechanism to move down to grab the finished product and then moves up to reset, and controls the twelfth cylinder drive shaft and the thirteenth cylinder drive shaft to extend simultaneously, the first moving seat is driven by the twelfth cylinder to move to the connection state of abutting against the second limit block, and at this time when the piston of the twelfth cylinder triggers the third magnetic switch, the device switches to the second palletizing station;

[0067] When switching from the first or second palletizing station to the clamping station, the drive shaft of the thirteenth cylinder is retracted, and then the drive shaft of the twelfth cylinder is retracted. Finally, when both cylinders are in the retracted state, the device is reset to the finished product clamping station and enters the next cycle of "second sensor detection for material gripping - first proximity switch for material release".

[0068] Furthermore, a plurality of second guide shafts 81 are spaced apart on the second movable seat 68. The second guide shafts 81 are movably connected to the second connecting seat 69 via linear bearings. A first limiting block 83 is provided on the second guide shaft 81 above the second connecting seat 69. The first limiting block 83 abuts against the upper side of the second connecting seat 69. The second guide shaft 81 can sense and cooperate with the first proximity switch 70.

[0069] Specifically, the second guide shaft cooperates with the first limiting block to enable the second moving seat to move up and down relative to the second connecting seat, and the second guide shaft cooperates with the first proximity switch to facilitate the triggering control of the first proximity switch.

[0070] Furthermore, a connecting plate 84 is provided on one side of the first movable seat 66. An opening 85 is provided through the connecting plate 84. A blocking member 86 is movably arranged on the connecting plate 84 via a slide rail slider. A sixteenth cylinder 91 is provided on the connecting plate 84 to drive the blocking member 86 to move. A vertical plate 87 is connected to the second connecting seat 69 within the opening 85. A baffle 48 is provided at the upper end of the vertical plate 87. A hydraulic buffer that can abut against the blocking member 86 is provided on the baffle 48. A first sensor (not shown) and a second sensor (not shown) are arranged at intervals along the extension and retraction direction of the eleventh cylinder 67. The first sensor (not shown) is used to detect when the eleventh cylinder 67 resets and rises to a safe height after sensing material picking. The second sensor (not shown) is used to detect the contact position between the baffle 48 and the blocking member 86 when sensing the extension of the eleventh cylinder 67.

[0071] Specifically, when the second clamping mechanism is driven to be directly above the finished product clamping station (receiving platform), the second double-headed cylinder drive shaft extends, and the two second clamping plates open. The sixteenth cylinder drives the blocking component to move directly below the vertical plate. When the vertical plate moves the baffle down to contact the blocking component, the second sensor on the eleventh cylinder sends an electrical signal, and the controller simultaneously executes two key actions: ① Sending a "gripping position in place" signal, the control system immediately controls the eleventh cylinder to stop moving down; ② Sending a "clamping start" signal, the control system directly controls the second double-headed cylinder drive shaft to retract, and the two second clamping plates close to clamp the firework tube. Throughout the gripping process, the first proximity switch remains in a non-triggered state and does not participate in any signal transmission or action control. After the finished product is gripped, the eleventh cylinder drive shaft resets upward, driving the firework tube to rise to the preset height; at the same time, the sixteenth cylinder drives the blocking component to reset. Thus, through the cooperation of the blocking component and the sixteenth cylinder, the clamping mechanism can grip the finished product at the corresponding clamping height (corresponding to the height of the receiving platform).

[0072] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic fireworks filling production equipment, characterized in that, include: A frame (1) on which a conveyor belt (2) is provided; a feeding device (3) which includes a device set on the frame (1) and above the conveyor belt (2) for feeding the inner tubes of the combined fireworks one by one to the conveyor belt (2); a filling device which includes a bright bead filling device (4), a gunpowder filling device (5) and a sealing powder filling device (6) arranged sequentially on the frame (1), wherein the bright bead filling device (4), the gunpowder filling device (5) and the sealing powder filling device (6) have the same structure; The bright bead filling device (4) includes a housing (41) with openings at the top and bottom. A mold base (42) is provided inside the housing (41). Several material discharge holes (43) are provided through the mold base (42) corresponding to multiple material cavities of the combined firework inner tube. A cover plate (44) is rotatably provided in each material discharge hole (43). The cover plate (44) is closed to form a quantitative temporary storage space in the material discharge hole (43). A first driving member (7) is provided between the mold base (42) and the housing (41) to drive the cover plate (44) to flip so that the material discharge hole (43) is opened or closed. A circular guide cylinder (45) is provided on the upper side of the mold base (42) to enclose several material discharge holes (43). A feed inlet (11) is provided at the upper end of the circular guide cylinder (45). A material distribution module and a weighing module are respectively provided on the circular guide cylinder (45). The weighing module includes a buffer box (8) with openings at the top and bottom and a first support frame (9), and a weighing sensor (10) disposed between the buffer box (8) and the first support frame (9). The first support frame (9) is disposed on a circular guide cylinder (45). The lower opening of the buffer box (8) is aligned and connected with the feed inlet (11). A discharge plate (12) and a second driving component (13) are respectively disposed on the buffer box (8). The discharge plate (12) is rotatably disposed at the lower end of the buffer box (8) and can close or open its lower opening. The second driving component (13) is connected to the discharge plate (12) and can drive the discharge plate (12) to open and close relative to the buffer box (8). The material distribution module includes a first motor (14) mounted on a circular guide cylinder (45) and a connecting shaft (15) mounted on the drive shaft of the first motor (14). The connecting shaft (15) is rotatably mounted inside the circular guide cylinder (45) via bearings and is coaxial with the circular guide cylinder (45). One end of the connecting shaft (15) is provided with a connecting strip (16) co-radially arranged with the circular guide cylinder (45). The connecting strip (16) is provided with bristles (17) that can abut against the mold base (42). The transfer device is mounted on the frame (1) and includes a horizontal transfer mechanism, a one-stage lifting mechanism and a two-stage lifting mechanism respectively.The horizontal transfer mechanism includes a third movable seat (18) and a first cylinder (19) for driving the third movable seat (18) to move. The third movable seat (18) is movably mounted on the frame (1) via a slide rail slider. N first clamping mechanisms (99) are evenly distributed and spaced along the transverse direction on the third movable seat (18). The first clamping mechanism (99) includes a third double-headed cylinder (97) mounted on the third movable seat (18) and a third clamping plate (98) symmetrically mounted on the drive shafts on both sides of the third double-headed cylinder (97). The two-stage lifting mechanism includes N-1 lifting platforms (21) evenly spaced along the transverse direction of the frame (1). The lifting platforms (21) are respectively located directly below the bright bead filling device (4), the gunpowder filling device (5) and the sealing powder filling device (6). The second clamping mechanism (20) is correspondingly arranged with the lifting platforms (21). A pneumatic drive component that can drive the lifting platform (21) to lift in two stages is correspondingly arranged between the frame (1) and the lifting platform (21). The pneumatic drive component includes a second cylinder (22) and a third cylinder (23). The second cylinder (22) is located on the lower side of the lifting platform (21), and a connecting block (24) is provided on the drive shaft of the second cylinder (22). The third cylinder (23) is located on the frame (1) and is opposite to the second cylinder (22). The drive shaft of the third cylinder (23) is connected to the connecting block (24). A single-stage lifting mechanism is set on the frame (1) and located on both sides of the two-stage lifting mechanism. One of them is connected between the conveyor belt (2) and the two-stage lifting mechanism. It includes a receiving platform (25) and a fourth cylinder (26) set on the frame (1) to drive the receiving platform (25) to move up and down. The distance between the receiving platform (25) and its adjacent lifting platform (21) is equal to the distance between the two adjacent lifting platforms (21). A pushing mechanism, mounted on the frame (1) and located at the output end of the conveyor belt (2), is used to push the inner tube of the combined fireworks located on the conveyor belt (2) to the receiving platform (25). It includes a slider (91), a fourteenth cylinder (92), and a fifteenth cylinder (93). The slider (91) is movably mounted on the frame (1) and can reciprocate along the conveying direction of the conveyor belt (2). The fourteenth cylinder (92) is mounted on the frame (1) to drive the slider (91) to move. The fifteenth cylinder (93) is mounted on the slider (91). A pusher (94) is mounted on the drive shaft of the fifteenth cylinder (93), which drives the pusher (94) to move up and down.

2. The automatic fireworks filling production equipment according to claim 1, characterized in that: The first driving component (7) includes several rotating shafts (71) and transmission blocks (72) respectively disposed at one end of the rotating shafts (71), and a fifth cylinder (74) disposed on the housing (41). The several rotating shafts (71) pass through several feeding holes (43) located on the same axis, and the rotating shafts (71) are rotatably disposed on the mold base (42) through bearings. The cover plates (44) located on the same axis are fixedly connected to the rotating shafts (71). The transmission block (72) has a protrusion (73) on one side. The center of the protrusion (73) is eccentrically disposed relative to the center of the rotating shaft (71). The driving shaft of the fifth cylinder (74) is provided with a first connecting seat (75). The first connecting seat (75) has a horizontal driving groove (76) recessed on one side. The protrusion (73) is movably disposed in the driving groove (76). The protrusion (73) is round in shape and is rotatably connected to the transmission block (72).

3. The automatic fireworks filling production equipment according to claim 1, characterized in that: The second driving component (13) includes a sixth cylinder (31), a first hinge block (32) and a second hinge block (33). The first hinge block (32) is hinged to one side of the buffer box (8). The sixth cylinder (31) is disposed on the first hinge block (32). The second hinge block (33) is disposed on the drive shaft of the sixth cylinder (31) and is hinged to the unloading plate (12).

4. The automatic fireworks filling production equipment according to claim 1, characterized in that: The housing (41) has a slot (34) on one side that communicates with its inner cavity. The slot (34) has support flanges (35) on both sides of the inner wall of the housing (41). The mold base (42) is inserted into the slot (34) and presses against the support flanges (35). The mold base (42) and the housing (41) are connected by a bag buckle (36).

5. The automatic fireworks filling production equipment according to claim 1, characterized in that: The feeding device (3) includes a second support frame (37), on which a placement space (38) is formed to position and stack the inner tubes of the combined fireworks. A feeding port (39) is provided through the lower end of the placement space (38). An opening and closing structure is provided on the second support frame (37) to close or open the feeding port (39). A first movable seat (46) and a driving component (47) that can drive the first movable seat (46) to move up and down are respectively provided in the second support frame (37). A clamping component that can clamp the inner tubes of the combined fireworks in the placement space (38) is provided on the first movable seat (46). The opening and closing structure includes two baffles (48) and a seventh cylinder (49) that is connected to the baffles (48) one by one. The two baffles (48) are respectively movably set on the second support frame (37) by sliding rail sliders. The two seventh cylinders (49) respectively drive the baffles (48) to move so that the two baffles (48) move closer or further away from each other. The clamping component includes a first double-headed cylinder (50) disposed on the first movable seat (46), and a first clamping plate (51) disposed on the two drive shafts of the first double-headed cylinder (50) respectively.

6. The automatic fireworks filling production equipment according to claim 5, characterized in that: The drive assembly (47) includes an eighth cylinder (52), a ninth cylinder (53), a second movable seat (54), and a third movable seat (55). The second movable seat (54) and the third movable seat (55) are respectively movably mounted on the second support frame (37). The eighth cylinder (52) is mounted on the second support frame (37), and the drive shaft of the eighth cylinder (52) is connected to the second movable seat (54). The ninth cylinder (53) is mounted on the second movable seat (54), and the drive shaft of the ninth cylinder (53) is connected to the third movable seat (55). The third movable seat (55) is connected to the first movable seat (46) by a steel cable (57).

7. The automatic fireworks filling production equipment according to claim 1, characterized in that: The conveyor belt (2) includes a frame (1) and a number of transmission rollers (58) that are rotatably arranged on the frame (1) at intervals. The transmission rollers (58) located at the top are evenly distributed along the same horizontal axis. A transmission belt (59) is sleeved between the transmission rollers (58) for transmission cooperation. A second motor (60) capable of driving one transmission roller (58) to rotate is provided on one side of the frame (1). The frame (1) has symmetrical through slots (61) on both sides. A movable shaft (62) is movably arranged in the slots (61). One of the transmission rollers (58) is rotatably sleeved on the movable shaft (62) through a bearing. A number of lifting components are arranged at intervals along the same horizontal axis on the frame (1). The lifting components include a tenth cylinder (63) and a top plate (64) arranged on the drive shaft of the tenth cylinder (63). The top plate (64) is located below the transmission belt (59), and the top plate (64) can be driven by the tenth cylinder (63) to lift the transmission belt (59).

8. The automatic fireworks filling production equipment according to claim 1, characterized in that: It also includes a stacking device; the stacking device includes two or more first guide shafts (65) arranged laterally on the frame (1), a first movable seat (66) is movably sleeved on the first guide shaft (65) through a linear bearing, a second clamping mechanism (20) and an eleventh cylinder (67) for driving the second clamping mechanism (20) to move up and down are respectively provided on the first movable seat (66), and a driving component that can drive the first movable seat (66) to move axially along the first guide shaft (65) is provided on the frame (1), the second clamping mechanism (20) includes a second movable seat (68), a second connecting seat (69), a first proximity switch (70), a second double-headed cylinder (71) and two second clamping plates (72); The second connecting seat (69) is mounted on the drive shaft of the eleventh cylinder (67), the second movable seat (68) is movably mounted on the second connecting seat (69), the first proximity switch (70) is mounted on the second connecting seat (69) and can sense and cooperate with the upwardly moving second movable seat (68), the second double-headed cylinder (71) is mounted on the second movable seat (68), and two second clamping plates (72) are symmetrically and correspondingly mounted on the two sides of the drive shaft of the second double-headed cylinder (71); the driving component includes The twelfth cylinder (73) and the thirteenth cylinder (74) are respectively mounted on the frame (1). The drive shaft of the twelfth cylinder (73) is connected to the first moving seat (66) to drive the first moving seat (66) to move axially along the first guide shaft (65). The drive shaft of the thirteenth cylinder (74) is connected to a fixed shaft (75). The fixed shaft (75) passes through the first moving seat (66) through a linear bearing. The fixed shaft (75) is provided with a second limiting block (76) that can abut against the first moving seat (66). A first magnetic switch (77), a second magnetic switch (78), and a third magnetic switch (79) that can cooperate with the magnetic ring on the piston are respectively provided on the twelfth cylinder (73) along its driving direction; a limiting rod (80) that can abut against the first moving seat (66) is provided on the frame (1); when the limiting rod (80) abuts against the first moving seat (66), the drive shafts of the twelfth cylinder (73) and the thirteenth cylinder (74) are both in the initial retracted working state.

9. The automatic fireworks filling production equipment according to claim 8, characterized in that: The second movable seat (68) is provided with a plurality of second guide shafts (81) spaced apart. The second guide shafts (81) are movably connected to the second connecting seat (69) via linear bearings. A first limiting block (83) is provided on the second guide shaft (81) above the second connecting seat (69). The first limiting block (83) abuts against the upper side of the second connecting seat (69). The second guide shaft (81) can be sensed and cooperated with the first proximity switch (70).

10. The automatic fireworks loading production equipment according to claim 8, characterized in that: A connecting plate (84) is provided on one side of the first movable seat (66). An opening (85) is provided through the connecting plate (84). A blocking member (86) is movably provided on the connecting plate (84) via a slide rail slider. A sixteenth cylinder (91) is provided on the connecting plate (84) to drive the blocking member (86) to move. A vertical plate (87) is connected to the second connecting seat (69) inside the opening (85). A baffle (48) is provided at the upper end of the vertical plate (87). A hydraulic buffer that can abut against the blocking member (86) is provided on the baffle (48). A first sensor and a second sensor are provided at intervals along the extension and retraction direction of the eleventh cylinder (67). The first sensor is used to detect when the eleventh cylinder (67) resets and rises to a safe height after sensing material picking. The second sensor is used to detect the contact position between the baffle (48) and the blocking member (86) when the eleventh cylinder (67) extends.

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