Double-station firework bright bead filling equipment

Abstract

Double-station firework bright bead filling equipment comprises a supporting frame, the top of the supporting frame is movably provided with two rotating shafts through supporting seats, each rotating shaft is further movably provided with a filling mechanism, each filling mechanism is fixedly provided with a feeding pipe, and the two filling mechanisms are further connected through a connecting rod mechanism; a conveying mechanism is further fixedly installed on the supporting frame. Swinging angles of the two filling mechanisms are changed by controlling stroke changes of a swinging electric cylinder, in this way, in the reciprocating swinging process, bright beads can be continuously rolled and filled into discharging through holes in a material storage plate, the two filling mechanisms conduct filling synchronously, the filling efficiency is further improved, in the process, the number of the bright beads can be detected in real time through a photoelectric sensor, and the filling efficiency is improved. The bright beads in the collecting bin are kept at a certain height; and secondly, through the bright bead discharging module, the belt rotates synchronously while the movable plate moves, friction is reduced, and potential safety hazards are avoided. And under the action of the pushing mechanism, the blanking through hole can be ensured not to be blocked.

Description

Technical Field

[0001] This utility model relates to the field of fireworks production equipment, and in particular to a dual-station fireworks bright bead filling device. Background Technology

[0002] Fireworks often produce different colors and special effects after exploding in the air. The main component that plays this role is the sparkler. Sparklers are a key component in pyrotechnic devices and are specifically designed to produce specific colors, lighting effects, or other visual effects.

[0003] Currently, fireworks beads are generally filled using traditional filling equipment. Traditional filling equipment is not only prone to clogging the feeding channel, but also results in uneven filling, and may even lead to some fireworks tubes being underfilled or missing. Secondly, traditional filling is carried out at a single station, which is not only inefficient, but also causes friction and heat during the feeding process, leading to damage to the beads. Utility Model Content

[0004] The purpose of this invention is to solve the problems of low efficiency and easy blockage during the filling process of bright beads.

[0005] The present invention adopts the following technical solution:

[0006] A dual-station fireworks bead filling device includes a support frame. Two rotating shafts are movably mounted on the top of the support frame via support seats. The two rotating shafts are parallel to each other longitudinally and perpendicular to the transverse direction of the support frame. A filling mechanism is movably mounted on each rotating shaft. A feed pipe is fixedly mounted on each filling mechanism. The two filling mechanisms are connected by a linkage mechanism. A conveying mechanism is also fixedly mounted on the support frame and is located below the two filling mechanisms.

[0007] Preferably, a swing cylinder is also fixedly installed on the support frame, and the telescopic end of the swing cylinder is movably connected to a linkage mechanism. Several adjustable supports are also provided at the bottom of the support frame.

[0008] Preferably, the linkage mechanism includes two swing shafts and two horizontal connecting rods. Each swing shaft is located on a corresponding loading mechanism, and the ends of the two swing shafts on the same side are movably connected by the horizontal connecting rods. The telescopic end of the swing cylinder is movably connected to one of the swing shafts.

[0009] Preferably, the filling mechanism further includes a swing base, a longitudinal support plate, a pushing mechanism, a collection bin, and a bright bead feeding module. The top of the swing base is movably connected to a corresponding rotating shaft, the bottom of the swing base is fixed to the collection bin, the collection bin is connected to the feed pipe, the bottom of the collection bin has a feeding port, the feeding port is also fixed to the bright bead feeding module, the swing base is fixed inside the longitudinal support plate, and the pushing mechanism is fixed on the longitudinal support plate.

[0010] Preferably, photoelectric sensors are symmetrically arranged inside the collection chamber, and the detection end of each photoelectric sensor extends into the collection chamber.

[0011] Preferably, the feeding mechanism includes a fixed plate, a feeding cylinder, a bearing seat, a connecting plate, a guide shaft, a feeding plate, and feeding rods. The fixed plate is mounted on a longitudinal support plate, and bearing seats are symmetrically arranged on the fixed plate. The guide shaft is fitted inside the bearing seats, and the bottom of the guide shaft is fixedly connected to the connecting plate. The feeding plate is fixed to the bottom of the connecting plate, and several feeding rods are fixedly arrayed at the bottom of the feeding plate. The feeding cylinder is also mounted on the fixed plate, and the telescopic end of the feeding cylinder is fixedly connected to the connecting plate.

[0012] Preferably, the bright bead feeding module includes a cylinder seat, a feeding base plate, a flow guide hopper plate, a moving plate, a guide rail, a belt, a first belt fixing plate, a second belt fixing plate, a guide rod, a preload spring, a storage plate, and a feeding cylinder. The feeding base plate is fixed to the front end of the cylinder seat. The flow guide hopper plate is fixedly installed on the feeding base plate. Guide seats are also installed on both sides of the feeding base plate. Guide rails are mounted on the guide seats. The moving plate is movably mounted on the guide rails. A belt is also movably mounted on the moving plate. The first belt fixing plate is fixedly installed on the cylinder seat, and the first belt fixing plate is fixedly mounted on the cylinder seat. A storage plate is fixed to the front end of a belt fixing plate. The rear end of the first belt fixing plate is fixedly connected to one end of the belt. Guide rods are also fixed on both sides of the first belt fixing plate. A second belt fixing plate is movably installed on the two guide rods. The front end of the second belt fixing plate is also fixedly connected to the other end of the belt. A pre-tensioning spring is also installed on the guide rod. The pre-tensioning spring is located at the rear end of the second belt fixing plate. The upper part of the storage plate is opposite to the discharge port. The discharge cylinder is fixedly installed at the rear end of the cylinder seat, and the telescopic end of the discharge cylinder is fixedly connected to the moving plate.

[0013] Preferably, the storage plate and the guide hopper plate are each arrayed with multiple discharge through holes, and the discharge through holes on the storage plate correspond one-to-one with the discharge through holes on the guide hopper plate.

[0014] Preferably, the conveying mechanism includes a conveyor frame, a conveyor belt, positioning sensors, a clamping plate, a clamping cylinder, a pre-tightening plate, and a pre-tightening cylinder. The conveyor frame is mounted on a support frame and located below the filling mechanism. The conveyor belt is mounted on the conveyor frame. Two positioning sensors are also mounted on the conveyor frame. A clamping cylinder is provided on one side of each positioning sensor, and a pre-tightening cylinder is provided on the other side. Both the clamping cylinder and the pre-tightening cylinder are fixedly mounted on the conveyor frame and located on both sides of the conveyor belt. The clamping cylinder is also fixedly connected to the clamping plate. The clamping plate is located on the conveyor belt and parallel to the conveyor belt. The pre-tightening plate is fixedly connected to the pre-tightening cylinder and is located above the clamping plate.

[0015] Preferably, the pretensioning plate is an isosceles trapezoidal structure, and the pretensioning plates are arranged horizontally opposite each other in pairs.

[0016] Working principle:

[0017] First, the conveying mechanism transports the firework tubes along the conveyor belt. When the positioning sensor detects a signal, the controller uses clamping cylinders and pre-tightening cylinders to firmly position the firework tubes together. Then, it controls the stroke of the swing cylinder to change, thereby controlling the swing angle of the two filling mechanisms. As the stroke of the swing cylinder increases, starting from the initial vertical position, the two filling mechanisms swing to the left from the vertical position. At this time, the bright beads in the collection chamber will roll to the lower right as the height changes. This process will fill the discharge through hole, and the excess bright beads will accumulate at the rightmost end of the collection chamber. Then, the stroke of the swing cylinder begins to shorten. When it returns to the initial position, i.e., the vertical position, the pushing mechanism starts to work, filling all the bright beads in the discharge through hole into the firework tube. During this process, the bright beads are no longer in an accumulated state, but are laid flat. Then, as the oscillating electric cylinder continues to reduce its stroke, the two filling mechanisms swing to the right from the vertical position. At this time, the bright beads that are laid out flat in the collection bin begin to roll to the left, filling the empty discharge hole again. This process of oscillating back and forth continuously fills the material, simulating the manual oscillating filling process.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The two filling mechanisms can be synchronously controlled by the swing electric cylinder. The linkage control is mainly achieved by controlling the stroke of the swing electric cylinder, which causes the swing angle of the two filling mechanisms to change. In this reciprocating swing process, the bright beads can be continuously rolled and filled into the discharge through hole on the storage plate. The synchronous filling of the two filling mechanisms further improves the filling efficiency of the bright beads.

[0020] 2. During the swinging process, the photoelectric sensor can detect the number of bright beads in the collection chamber in real time, ensuring that the bright beads in the collection chamber are always maintained at a certain height. This allows for real-time acquisition of the number of bright beads in the collection chamber and automatic refilling when the number of bright beads is low.

[0021] 3. The bright bead feeding module allows the conveyor belt to rotate synchronously as the moving plate moves, reducing friction and avoiding safety hazards. Simultaneously, the pushing mechanism ensures the feeding holes won't become clogged, improving bright bead loading efficiency. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of a dual-station fireworks bright bead filling device;

[0023] Figure 2 A front view structural diagram of a dual-station fireworks sparkler filling device;

[0024] Figure 3 A side view of a dual-station fireworks sparkler filling device;

[0025] Figure 4 This is a partial structural diagram of the loading mechanism;

[0026] Figure 5 This is a bottom view of the loading mechanism.

[0027] Figure 6 This is a schematic diagram of the assembly structure of the bright bead feeding module;

[0028] Figure 7 This is an exploded view of the bright bead feeding module.

[0029] Figure 8 for Figure 1 Enlarged structural diagram of section A in the middle;

[0030] In the diagram: 1. Support frame; 2. Support base; 3. Rotating shaft; 4. Filling mechanism; 5. Feed pipe; 6. Linkage mechanism; 7. Conveying mechanism; 8. Swinging electric cylinder; 9. Adjustable support; 60. Swinging shaft; 61. Horizontal connecting rod; 40. Swinging base; 41. Longitudinal support plate; 42. Pushing mechanism; 43. Collection bin; 44. Bright bead feeding module; 10. Discharge port; 11. Photoelectric sensor; 12. Feeding through hole; 420. Fixing plate; 421. Pushing cylinder; 422. Bearing seat; 423. Connecting plate; 424. Guide shaft. 4. Pushing plate 425, pushing rod 426, cylinder seat 440, feeding base plate 441, guiding hopper plate 442, moving plate 443, guide rail 444, belt 445, first belt fixing plate 446, second belt fixing plate 447, guide rod 448, pre-tension spring 449, storage plate 4410, feeding cylinder 4411, conveyor frame 70, conveyor belt 71, positioning sensor 72, clamping plate 73, clamping cylinder 74, pre-tensioning plate 75 and pre-tensioning cylinder 76. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example 1:

[0033] Reference Figure 1-8 A dual-station fireworks bead filling device includes a support frame 1. Two rotating shafts 3 are movably mounted on the top of the support frame 1 via support seats 2. The two rotating shafts 3 are longitudinally parallel to each other and perpendicular to the transverse direction of the support frame 1. A filling mechanism 4 is movably mounted on each rotating shaft 3. A feed pipe 5 is fixedly mounted on each filling mechanism 4, and the two filling mechanisms 4 are connected by a linkage mechanism 6. A conveying mechanism 7 is also fixedly mounted on the support frame 1, and the conveying mechanism 7 is located below the two filling mechanisms 4. During operation, the conveying mechanism 7 transports the fireworks sleeve to the area below the filling mechanism 4. The controller then fills the fireworks sleeve with bright beads through the filling mechanism 4. The filling mechanism 4 can swing back and forth at different angles. The swing serves two purposes: first, it facilitates aligning the inlet of the feed pipe 5 with the supply mechanism containing the bright beads, thus facilitating the pouring of the bright beads into the filling mechanism 4 through the feed pipe 5. On the other hand, it is to allow the bright beads to roll due to the height difference, so as to ensure that the bright beads enter the discharge through hole 12 on the storage plate 4410.

[0034] See Figures 1-2 The support frame 1 is also fixedly installed with a swing cylinder 8. The telescopic end of the swing cylinder 8 is also movably connected to the linkage mechanism 6. Several adjustable supports 9 are also provided at the bottom of the support frame 1. When swinging is required, the controller controls the swing cylinder 8 to start. In this way, the swing cylinder 8 will control the two filling mechanisms 4 to swing together. During the swinging process, it rotates around the rotation axis 3. The swing cylinder 8 mainly controls its own stroke change to make the two filling mechanisms 4 swing synchronously. The swing angle is determined by the stroke of the swing cylinder 8.

[0035] See Figures 2-5 The linkage mechanism 6 includes two swing shafts 60 and two horizontal connecting rods 61. Each swing shaft 60 is located on a corresponding loading mechanism 4, and the ends of the two swing shafts 60 on the same side are movably connected by the horizontal connecting rods 61. The telescopic end of the swing cylinder 8 is movably connected to one of the swing shafts 60. The linkage mechanism 6 mainly plays a linkage role, ensuring that the two loading mechanisms 4 swing synchronously.

[0036] See Figures 2-3The loading mechanism 4 further includes a swing base 40, a longitudinal support plate 41, a pushing mechanism 42, a collection bin 43, and a bright bead feeding module 44. The top of the swing base 40 is movably connected to the corresponding rotating shaft 3. The bottom of the swing base 40 is fixed to the collection bin 43, which is connected to the feed pipe 5. The bottom of the collection bin 43 has a feeding port 10, and the bright bead feeding module 44 is also fixed at the feeding port 10. The longitudinal support plate 41 is fixed inside the swing base 40, and the pushing mechanism 42 is fixed on the longitudinal support plate 41. Bright beads are introduced into the collection bin 43 through the feed pipe 5. During the swinging process, the bright bead feeding module 44 will open when feeding is needed, and the bright beads falling into the bright bead feeding module 44 are pushed into the firework tube by the pushing mechanism 42.

[0037] The collection chamber 43 is also symmetrically equipped with photoelectric sensors 11, and the detection end of each photoelectric sensor 11 extends into the collection chamber 43. The photoelectric sensor 11 is mainly used to detect the number of bright beads to ensure that there is always a certain number of bright beads in the collection chamber 43. When the number of bright beads is low, the photoelectric sensor 11 will send a signal to automatically replenish the bright beads. During the swinging process, the bright beads will enter the feeding through hole 12, and then the controller will control the feeding cylinder 4411 to start.

[0038] See Figures 3-4 The feeding mechanism 42 includes a fixed plate 420, a feeding cylinder 421, a bearing seat 422, a connecting plate 423, a guide shaft 424, a feeding plate 425, and a feeding rod 426. The fixed plate 420 is mounted on a longitudinal support plate 41. The bearing seats 422 are symmetrically arranged on the fixed plate 420. The guide shaft 424 is fitted inside the bearing seat 422, and the bottom of the guide shaft 424 is fixedly connected to the connecting plate 423. The feeding plate 425 is fixed to the bottom of the connecting plate 423. A number of push rods 426 are fixedly arranged. A push cylinder 421 is also installed on the fixed plate 420. The telescopic end of the push cylinder 421 is fixedly connected to the connecting plate 423. When the bright bead feeding module 44 starts to work, the push cylinder 421 first receives the controller information, which causes the push cylinder 421 to control the connecting plate 423 to drive the push plate 425 to move down. This will make the push rods 426 aligned with each feeding through hole 12 filled with bright beads. As it moves down, it will push all the bright beads from the bright bead feeding module 44 into the firework tube.

[0039] See Figures 6-7The bright bead feeding module 44 includes a cylinder seat 440, a feeding base plate 441, a flow guide hopper plate 442, a moving plate 443, a guide rail 444, a belt 445, a first belt fixing plate 446, a second belt fixing plate 447, a guide rod 448, a preload spring 449, a storage plate 4410, and a feeding cylinder 4411. The feeding base plate 441 is fixed to the front end of the cylinder seat 440. The flow guide hopper plate 442 is fixedly installed on the feeding base plate 441. Guide seats are also installed on both sides of the feeding base plate 441. The guide rail 444 is fitted on the guide seats. The moving plate 423 is movably installed on the guide rail 444. The belt 445 is also movably installed on the moving plate 443. The first belt fixing plate 446 is fixedly installed on the cylinder seat 440. During the process of pulling the moving plate 443 to move to the right, the belt 445... The first belt fixing plate 446 rotates counterclockwise around the moving plate 445 and moves to the right at the same time. The front end of the first belt fixing plate 446 is fixed to the storage plate 4410. The rear end of the first belt fixing plate 446 is fixedly connected to one end of the belt 445. Guide rods 448 are also fixed on both sides of the first belt fixing plate 4446. The second belt fixing plate 447 is movably installed on the two guide rods 448. The front end of the second belt fixing plate 447 is also fixedly connected to the other end of the belt 445. The guide rods 448 are also equipped with pre-tension springs 449. The pre-tension springs 449 are located at the rear end of the second belt fixing plate 447. The upper part of the storage plate 4410 is opposite to the discharge port 10. The discharge cylinder 4411 is fixedly installed at the rear end of the cylinder seat 440, and the telescopic end of the discharge cylinder 4411 is fixedly connected to the moving plate 443.

[0040] The storage plate 4410 and the guide hopper plate 442 are respectively arrayed with multiple discharge through holes 12, and the discharge through holes 12 on the storage plate 4410 correspond one-to-one with the discharge through holes 12 on the guide hopper plate 442.

[0041] Material feeding principle:

[0042] During this process, the photoelectric sensor 11 can detect in real time whether the bright beads in the collection bin 43 meet the requirements, that is, it can obtain the number of bright beads in the collection bin 43 in real time. During the swinging process, the bright beads will fill the discharge through hole 12. At this time, the discharge cylinder 4411 is started, causing the moving plate 443 to move to the right. During this process, the belt 445 on the moving plate 443 rotates and moves with the moving plate 443. As the moving plate 443 moves away, it is equivalent to connecting the storage plate 4410 and the guide hopper plate 442. In this way, the discharge through hole 12 on the storage plate 4410 and the discharge through hole 12 on the guide hopper plate 442 will correspond one by one. Then, under the overall action of the pushing mechanism 42, all the bright beads in the discharge through hole 12 on the storage plate 4410 will pass through the storage plate 4410 and the guide hopper plate 442 in sequence and reach the firework tube on the conveying mechanism 7.

[0043] See Figure 1 and Figure 8 The conveying mechanism 7 includes a conveyor frame 70, a conveyor belt 71, positioning sensors 72, a clamping plate 73, a clamping cylinder 74, a pre-tightening plate 75, and a pre-tightening cylinder 76. The conveyor frame 70 is mounted on the support frame 1 and located below the filling mechanism 4. The conveyor belt 71 is mounted on the conveyor frame 70. Two positioning sensors 72 are also mounted on the conveyor frame 70. A clamping cylinder 74 is provided on one side of the positioning sensor 72, and a pre-tightening cylinder 76 is provided on the other side. Both the clamping cylinder 74 and the pre-tightening cylinder 76 are fixedly mounted on the conveyor frame 70 and located on both sides of the conveyor belt 71. The clamping cylinder 74 is also fixedly connected to the clamping plate 73. The clamping plate 73 is located on the conveyor belt 71 and parallel to the conveyor belt 71. The pre-tightening plate 75 is fixedly connected to the pre-tightening cylinder 76 and is located above the clamping plate 73. When the positioning sensor 72 detects that the firework tube has reached the designated position, the clamping cylinders 74 on both sides of the conveyor frame 70 are activated, causing the clamping plates 73 to move closer together and assemble the firework tubes. At this time, the firework tubes are not very compact. Then, the pre-tightening cylinder 76 is activated, causing the two opposing pre-tightening plates 75 to move closer together. During this process, the firework tubes are pre-tightened, so that the firework tubes are tightly pressed together. This prevents misalignment when filling the bright beads and ensures that the corresponding bright beads are filled into the corresponding firework tubes.

[0044] The pretensioning plate 75 is an isosceles trapezoidal structure, and the pretensioning plates 75 are arranged horizontally opposite each other in pairs.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-station sparkling firework bead filling apparatus comprising a support frame (1), characterized in that: The top of the support frame (1) is movably installed with two rotating shafts (3) through support seats (2), the two rotating shafts (3) are longitudinally parallel to each other, and each rotating shaft (3) is perpendicular to the transverse direction of the support frame (1), and a filling mechanism (4) is movably installed on each rotating shaft (3), a feeding pipe (5) is fixedly installed on each filling mechanism (4), and the two filling mechanisms (4) are connected through a connecting rod mechanism (6), and a conveying mechanism (7) is fixedly installed on the support frame (1), and the conveying mechanism (7) is located below the two filling mechanisms (4).

2. A double position firework bright pearl filling equipment according to claim 1, characterized in that: The support frame (1) is also fixedly installed with a swing electric cylinder (8), and the telescopic end of the swing electric cylinder (8) is movably connected with the connecting rod mechanism (6), and the bottom of the support frame (1) is also provided with a plurality of adjustable supports (9).

3. A double station firework sparkler filling apparatus according to claim 2, characterised in that: The connecting rod mechanism (6) comprises two swing shafts (60) and two horizontal connecting rods (61), each swing shaft (60) is located on the corresponding filling mechanism (4), and the two swing shafts (60) are movably connected through the horizontal connecting rod (61) between the same side ends, and the telescopic end of the swing electric cylinder (8) is movably connected with one of the swing shafts (60).

4. The double-station firework bright pearl filling apparatus according to claim 1, characterized in that: The filling mechanism (4) further comprises a swing base (40), a longitudinal support plate (41), a pushing mechanism (42), a collection bin (43) and a bright bead discharging module (44), the top of the swing base (40) is movably connected with the corresponding rotating shaft (3), the bottom of the swing base (40) is fixedly provided with the collection bin (43), the collection bin (43) is in communication with the feeding pipe (5), a discharging port (10) is formed in the bottom of the collection bin (43), the bright bead discharging module (44) is fixedly arranged at the discharging port (10), the longitudinal support plate (41) is fixedly arranged in the swing base (40), and the pushing mechanism (42) is fixedly arranged on the longitudinal support plate (41).

5. A two-station firework sparkler filling apparatus according to claim 4, characterised in that: Symmetrical photoelectric sensors (11) are arranged in the collection bin (43), and the detection end of each photoelectric sensor (11) extends into the collection bin (43).

6. A double station firework sparkler filling apparatus according to claim 4, characterised in that: The pushing mechanism (42) comprises a fixed plate (420), a pushing cylinder (421), a bearing seat (422), a connecting plate (423), a guide shaft (424), a pushing plate (425) and a pushing rod (426), the fixed plate (420) is installed on the longitudinal support plate (41), the bearing seat (422) is symmetrically arranged on the fixed plate (420), the guide shaft (424) is fitted in the bearing seat (422), the bottom of the guide shaft (424) is fixedly connected with the connecting plate (423), the bottom of the connecting plate (423) is fixedly connected with the pushing plate (425), the bottom of the pushing plate (425) is fixedly connected with the pushing rod (426), the pushing cylinder (421) is installed on the fixed plate (420), and the telescopic end of the pushing cylinder (421) is fixedly connected with the connecting plate (423).

7. A double station firework bright pearl filling apparatus according to claim 4, characterized in that: The bright bead blanking module (44) comprises a cylinder seat (440), a blanking bottom plate (441), a flow guide hopper plate (442), a moving plate (443), a guide rail (444), a belt (445), a first belt fixing plate (446), a second belt fixing plate (447), a guide rod (448), a pre-tightening spring (449), a storage plate (4410) and a blanking cylinder (4411), the cylinder seat (440) is fixed with the blanking bottom plate (441) at the front end, the blanking bottom plate (441) is fixedly installed with the flow guide hopper plate (442), guide seats are also installed on both sides of the blanking bottom plate (441), the guide rail (444) is matched on the guide seat, the moving plate (443) is movably installed on the guide rail (444), the belt (445) is also movably installed on the moving plate (443), the first belt fixing plate (446) is fixedly installed on the cylinder seat (440), the front end of the first belt fixing plate (446) is fixed with the storage plate (4410), the rear end of the first belt fixing plate (446) is fixedly connected with one end of the belt (445), the guide rods (448) are also fixed on both sides of the first belt fixing plate (446), the second belt fixing plate (447) is movably installed on the two guide rods (448), the front end of the second belt fixing plate (447) is also fixedly connected with the other end of the belt (445), the pre-tightening spring (449) is matched on the guide rod (448), the pre-tightening spring (449) is located at the rear end of the second belt fixing plate (447), the upper part of the storage plate (4410) is opposite to the blanking port (10), the blanking cylinder (4411) is fixedly installed at the rear end of the cylinder seat (440), and the telescopic end of the blanking cylinder (4411) is fixedly connected with the moving plate (443).

8. A double station firework sparkler filling apparatus according to claim 7, characterised in that: A plurality of blanking through holes (12) are arrayed on the storage plate (4410) and the flow guide hopper plate (442) respectively, and the blanking through holes (12) on the storage plate (4410) correspond one-to-one with the blanking through holes (12) on the flow guide hopper plate (442).

9. The double-station firework bright pearl filling apparatus according to claim 1, characterized in that: The conveying mechanism (7) comprises a conveying frame (70), a conveying belt (71), a positioning sensor (72), a clamping plate (73), a clamping cylinder (74), a pre-tightening plate (75) and a pre-tightening cylinder (76), the conveying frame (70) is installed on the support frame (1) and is located below the filling mechanism (4), the conveying belt (71) is installed on the conveying frame (70), two positioning sensors (72) are further installed on the conveying frame (70), one side of the positioning sensor (72) is provided with the clamping cylinder (74), and the other side is provided with the pre-tightening cylinder (76), the clamping cylinder (74) and the pre-tightening cylinder (76) are fixedly installed on the conveying frame (70) and are located on both sides of the conveying belt (71), the clamping cylinder (74) is further fixedly connected with the clamping plate (73), the clamping plate (73) is located on the conveying belt (71) and is parallel to the conveying belt (71), the pre-tightening plate (75) is fixedly connected with the pre-tightening cylinder (76), and the pre-tightening plate (75) is located above the clamping plate (73).

10. A double station firework sparkler filling apparatus according to claim 9, characterised in that: The pre-tightening plate (75) is an isosceles trapezoidal structure, and two pre-tightening plates (75) are horizontally opposite to each other.

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