Rotary inner cylinder transferring and loading mechanism, inner cylinder feeding assembly and firework production equipment

Abstract

The utility model provides a rotary type inner cylinder transferring and loading mechanism, an inner cylinder feeding assembly and firework production equipment, and relates to the technical field of firework equipment, and the rotary type inner cylinder transferring and loading mechanism comprises a rotary frame and a driving device. The rotating frame is provided with a rotating shaft, and material frames are arranged around the rotating shaft. The driving device comprises a synchronous belt, a tooth-shaped belt wheel, a first air cylinder and a second air cylinder. The toothed belt wheel is assembled on the rotating shaft; the synchronous belt is wound on the tooth-shaped belt wheel and forms a meshing transmission relationship with the tooth-shaped belt wheel; the synchronous belt is of an open structure, the first end is connected with a piston rod of the first cylinder, and the second end is connected with a piston rod of the second cylinder. The first air cylinder and the second air cylinder are matched to tension the synchronous belt. The first air cylinder and the second air cylinder stretch out and draw back synchronously in the reverse direction to drive the rotating frame to rotate in a reciprocating mode, and the material frames on the rotating frame are converted between the first angle position and the second angle position. The driving device drives the rotating frame to rotate through the air cylinder and the synchronous belt mechanism, positioning is more accurate, and cost is lower.

Description

Technical Field

[0001] This application relates to the field of fireworks equipment technology, and in particular to a rotary inner cylinder transfer and loading mechanism, an inner cylinder feeding assembly, and fireworks production equipment. Background Technology

[0002] The inner tube of a firework, also known as a firework effects tube, contains bright beads, gunpowder, fillers, and igniters. Both the bright beads and gunpowder are flammable and explosive. When fireworks are set off, the inner tube can produce various effects, such as vibrant colors and a variety of sounds.

[0003] When producing combination fireworks, the inner tube needs to be inserted into the outer tube. Chinese patent CN202522334571.5 discloses a feeding assembly for the inner tube of fireworks. This feeding assembly utilizes the rotation of a transfer frame to transfer and load the inner tube, achieving automated filling of the inner tube and eliminating the need for workers to approach the material hopper to perform the feeding operation. However, the feeding assembly provided in this patent document also has some problems: the transfer frame is driven by a motor, and a reducer is required between the motor and the transfer frame for transmission. However, the reducer has transmission backlash, which can lead to inaccurate positioning of the transfer frame.

[0004] Specifically, in terms of structural design, the gear meshing of the reducer must maintain a certain clearance. The clearance between the gears is used to form an oil film and prevent jamming. If no clearance is reserved initially, the expanded gears will squeeze against each other, leading to a sharp increase in rotational resistance, or even direct jamming (shaft seizure). Furthermore, the lubricating oil will be completely squeezed out, resulting in direct metal-to-metal contact, causing severe wear, heat generation, and even glue (sticking together). However, the clearance between the gears will cause a decrease in precision, leading to inaccurate positioning of the transfer frame. Utility Model Content

[0005] The technical problem to be solved by this application is to provide a rotary inner cylinder transfer and loading mechanism, an inner cylinder feeding assembly, and fireworks production equipment, in response to the above-mentioned deficiencies of the prior art.

[0006] A rotary inner cylinder transfer loading mechanism, comprising:

[0007] A rotating frame is provided with a rotating shaft, and a material frame is arranged around the rotating shaft;

[0008] A driving device is used to drive the rotating frame to rotate so that the material frame on it can switch positions between a first angular position and a second angular position; the material frame is used for inner cylinder input at the first angular position and inner cylinder output at the second angular position.

[0009] The driving device includes a synchronous belt, a toothed pulley, a first cylinder, and a second cylinder; the toothed pulley is mounted on the rotating shaft; the synchronous belt is wound around the toothed pulley and forms a meshing transmission relationship with the toothed pulley; the synchronous belt has an open structure, with its first end connected to the piston rod of the first cylinder and its second end connected to the piston rod of the second cylinder; the first cylinder and the second cylinder cooperate to tension the synchronous belt; the first cylinder and the second cylinder synchronously extend and retract in opposite directions to drive the rotating frame to reciprocate, causing the material frame on it to switch positions between a first angular position and a second angular position.

[0010] Optionally, the first cylinder and the second cylinder are arranged in parallel on the same side of the toothed pulley.

[0011] Optionally, multiple material frames are arranged circumferentially around the rotating shaft; as the driving device drives the rotating frame to rotate, each material frame of the rotating frame sequentially reaches the first angular position and the second angular position.

[0012] Optionally, the angle distribution of the material frame is such that the material frame arrives at both the first angular position and the second angular position simultaneously during the rotation of the rotating frame.

[0013] Optionally, the rotating frame is provided with a first material frame and a second material frame, the first material frame and the second material frame are respectively disposed on both sides of the rotating shaft; the first angular position and the second angular position are respectively disposed on both sides of the rotating shaft;

[0014] During the rotation of the rotating frame, when the first material frame reaches the first angular position, the second material frame reaches the second angular position; when the first material frame reaches the second angular position, the second material frame reaches the first angular position.

[0015] Optionally, the material frame has a first side and a second side opposite to each other; when the inner cylinder cake passes through the material frame from the first side to the second side, the material frame can block the tie of the inner cylinder cake and allow the inner cylinder of the inner cylinder cake to pass through;

[0016] When the material frame is in the first angular position, the inner cylinder inputs the material frame from the first side of the material frame; when the material frame is in the second angular position, the inner cylinder outputs the material frame from the second side of the material frame.

[0017] Optionally, the timing belt can be replaced by a chain, and the toothed pulley can be replaced by a sprocket.

[0018] This application also provides an inner cylinder feeding assembly, which includes: the above-mentioned rotary inner cylinder transfer and loading mechanism, as well as a hopper, an inner cylinder cake feeding mechanism, and a pushing mechanism;

[0019] When the material frame on the rotating frame reaches the first angle position, the inner cylinder cake feeding mechanism aligns with the material frame on the rotating frame located at the first angle position to load the inner cylinder into the material frame;

[0020] When the material frame on the rotating frame reaches the second angle position, the material frame on the rotating frame at the second angle position is aligned with the hopper, and the pushing mechanism pushes the inner cylinder in the material frame into the hopper.

[0021] Optionally, the shape and size of the material frame and the hopper are adapted to the inner cylinder cake so as to just accommodate one inner cylinder cake.

[0022] This application also provides a fireworks production equipment having the aforementioned rotary inner cylinder transfer and loading mechanism.

[0023] In this application, the driving device includes a synchronous belt, a toothed pulley, a first cylinder, and a second cylinder. The synchronous belt is wound around the toothed pulley and forms a meshing transmission relationship with it. The synchronous belt has an open structure, with its first end connected to the piston rod of the first cylinder and its second end connected to the piston rod of the second cylinder. The first and second cylinders cooperate to tension the synchronous belt. The first and second cylinders synchronously extend and retract in opposite directions, driving the rotating frame to reciprocate, causing the material frame on it to switch positions between a first angular position and a second angular position. The material frame can input the inner cylinder at the first angular position and output the inner cylinder at the second angular position. Therefore, the material frame can transfer and load the inner cylinder by switching positions between the first and second angular positions. The above-mentioned driving device drives the rotating frame to rotate through the cylinder and synchronous belt mechanism, resulting in more accurate positioning and lower cost.

[0024] In the technical solution of this application, the cylinder can precisely control the extension and retraction stroke, and there is no transmission backlash between the synchronous belt and the toothed pulley, which can accurately convert the extension and retraction stroke of the cylinder into the rotation angle of the rotating frame. Therefore, the drive solution provided by this application eliminates the transmission error caused by the reducer, thereby enabling more precise control of the rotation angle of the rotating frame and making the positioning of the material frame more accurate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the rotary inner cylinder transfer loading mechanism in the embodiments of this application.

[0026] Figure 2 This is another structural schematic diagram of the rotary inner cylinder transfer loading mechanism in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram of the rotating frame in an embodiment of this application.

[0028] Figure 4This is a schematic diagram of the drive device in the embodiments of this application.

[0029] Figure 5 This is a schematic diagram of the structure of the fireworks production equipment in the embodiments of this application.

[0030] Reference numerals: rotating frame 10, rotating shaft 11, material frame 12, driving device 20, synchronous belt 21, toothed pulley 22, first cylinder 23, second cylinder 24, hopper 200, inner cylinder cake feeding mechanism 300, pushing mechanism 400. Detailed Implementation

[0031] The following are specific embodiments of this application, described in conjunction with the accompanying drawings, to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope of protection of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0032] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other.

[0033] This application provides a rotary inner cylinder transfer and loading mechanism, which is applied to an inner cylinder feeding assembly.

[0034] refer to Figures 1-4 The rotary inner cylinder transfer loading mechanism includes a rotating frame 10 and a drive unit 20. The rotating frame 10 is provided with a rotating shaft 11, and a material frame 12 is arranged around the rotating shaft 11. The drive unit 20 is used to drive the rotating frame 10 to rotate so that the material frame 12 on it can switch between a first angular position and a second angular position; the material frame 12 is used for inner cylinder input at the first angular position and inner cylinder output at the second angular position.

[0035] In a specific application scheme, refer to Figure 5The inner cylinder feeding assembly includes a rotary inner cylinder transfer and loading mechanism, a hopper 200, an inner cylinder cake feeding mechanism 300, and a pushing mechanism 400. Driven by the drive device 20, the material frame 12 on the rotating frame 10 changes position between a first angular position and a second angular position. When the material frame 12 on the rotating frame 10 reaches the first angular position, the inner cylinder cake feeding mechanism 300 aligns with the material frame 12 on the rotating frame 10 at the first angular position to load the inner cylinder P into the material frame 12. When the material frame 12 on the rotating frame 10 reaches the second angular position, the material frame 12 on the rotating frame 10 at the second angular position aligns with the hopper 200, and the pushing mechanism 400 pushes the inner cylinder P in the material frame 12 into the hopper 200. During feeding, operators or automated equipment can load the inner cylinder cake onto the inner cylinder cake feeding mechanism 300. Then, the inner cylinder cake feeding mechanism 300 loads the inner cylinder cake onto the material frame 12 on the rotating frame 10. Finally, the inner cylinder in the material frame 12 is loaded into the hopper 200. At this point, the inner cylinder of the inner cylinder cake is loaded into the hopper 200, completing the inner cylinder feeding. The hopper 200 can then discharge the inner cylinder for final loading into the outer cylinder of the firework. It should be noted that the inner cylinder cake feeding mechanism 300 and the pushing mechanism 400 are conventional components in existing firework equipment and will not be specifically limited or described here. Furthermore, there are numerous existing solutions for loading the outer cylinder of the firework from the hopper 200, which will not be elaborated upon here.

[0036] For example, one or more material frames 12 may be arranged around the rotating shaft 11, and the number of material frames 12 may be 1, 2, 3, 4, 5, 6, 7, 8, 9, ... . The number of material frames 12 on the rotating frame 10 can be set according to the specific implementation scheme, and is not limited here. In a specific example, refer to Figure 3 Two material frames 12 are arranged around the rotating shaft 11.

[0037] The drive unit 20 includes a synchronous belt 21, a toothed pulley 22, a first cylinder 23, and a second cylinder 24. The toothed pulley 22 is mounted on the rotating shaft 11. The synchronous belt 21 is wound around the toothed pulley 22 and forms a meshing transmission relationship with it. The synchronous belt 21 has an open structure, with its first end connected to the piston rod of the first cylinder 23 and its second end connected to the piston rod of the second cylinder 24. The first cylinder 23 and the second cylinder 24 cooperate to tension the synchronous belt 21. The first cylinder 23 and the second cylinder 24 synchronously extend and retract in opposite directions to drive the rotating frame 10 to reciprocate, causing the material frame 12 on it to switch positions between a first angular position and a second angular position. Therefore, the material frame can transfer and load the inner cylinder by switching positions between the first angular position and the second angular position. Compared with the drive method of motor and reducer, the above drive unit drives the rotating frame to rotate through the cylinder and synchronous belt mechanism, which is more accurate in positioning and lower in cost.

[0038] For example, when the piston rod of the first cylinder 23 retracts, the piston rod of the second cylinder 24 extends synchronously, the synchronous belt 21 rotates in the forward direction, the synchronous belt 21 drives the toothed pulley 22 to rotate in the forward direction, the toothed pulley 22 drives the rotating frame 10 to rotate in the forward direction, and the material frame 12 on the rotating frame 10 rotates from the first angular position to the second angular position. When the piston rod of the second cylinder 24 retracts, the piston rod of the first cylinder 23 extends synchronously, the synchronous belt 21 rotates in the reverse direction, the synchronous belt 21 drives the toothed pulley 22 to rotate in the reverse direction, the toothed pulley 22 drives the rotating frame 10 to rotate in the reverse direction, and the material frame 12 on the rotating frame 10 rotates from the second angular position to the first angular position. In this way, the first cylinder 23 and the second cylinder 24 can drive the rotating frame 10 to reciprocate through reverse synchronous extension and retraction, thereby enabling the material frame 12 to switch positions between the first angular position and the second angular position.

[0039] In some embodiments, the first cylinder 23 and the second cylinder 24 are arranged in parallel on the same side of the toothed pulley 22. Figure 4 In the structure shown, the first cylinder 23 and the second cylinder 24 are mounted parallel to each other on the same bracket.

[0040] In some embodiments, a plurality of material frames 12 are arranged circumferentially around the rotating shaft 11; as the driving device 20 drives the rotating frame 10 to rotate, each material frame 12 of the rotating frame 10 sequentially reaches a first angular position and a second angular position. As the rotating frame 10 rotates, each material frame 12 on the rotating frame 10 sequentially moves to the first angular position and the second angular position.

[0041] In some embodiments, the angle distribution of the material frame 12 is such that the material frame 12 arrives at both the first and second angle positions simultaneously during the rotation of the rotating frame 10. This configuration allows the loading of the inner cylinder cake into the material frame and the pushing of the inner cylinder into the hopper to occur simultaneously, effectively improving the equipment's working efficiency.

[0042] In some embodiments, the rotating frame 10 is provided with a first material frame and a second material frame, which are respectively disposed on both sides of the rotating shaft 11; a first angular position and a second angular position are respectively disposed on both sides of the rotating shaft 11. During the rotation of the rotating frame 10, when the first material frame reaches the first angular position, the second material frame reaches the second angular position; when the first material frame reaches the second angular position, the second material frame reaches the first angular position. Therefore, when one material frame is loaded with the inner cylinder cake at the first angular position, the other material frame outputs the inner cylinder to the hopper at the second angular position. In this way, the first material frame and the second material frame alternately move to the first angular position and the second angular position, and the action of loading the inner cylinder cake into the material frame and the action of pushing the inner cylinder into the hopper are performed simultaneously.

[0043] In some embodiments, the material frame 12 has a first side and a second side opposite to each other; when the inner cylinder cake passes through the material frame 12 from the first side to the second side, the material frame 12 can block the tie of the inner cylinder cake and allow the inner cylinder of the inner cylinder cake to pass through; when the material frame 12 is in a first angular position, the inner cylinder enters the material frame 12 from the first side of the material frame 12; when the material frame 12 is in a second angular position, the inner cylinder exits the material frame 12 from the second side of the material frame 12.

[0044] During operation, firstly, the drive unit 20 rotates the rotating frame 10, moving the material frame on it to a first angular position. The inner cylinder cake feeding mechanism 300 then loads the inner cylinder cake into the material frame from the first side. Next, the drive unit 20 rotates the rotating frame 10, moving the material frame to a second angular position. Driven by the pushing mechanism 400, the inner cylinder contained in the inner cylinder cake in the material frame is loaded into the hopper from the second side of the material frame. Because the material frame can block the tie of the inner cylinder cake while allowing the inner cylinder to pass through, when the pushing mechanism 400 pushes the inner cylinder of the inner cylinder cake in the material frame to the second side of the material frame, the inner cylinder separates from the tie and enters the hopper without manual removal of the tie.

[0045] In this embodiment, the driving device includes a synchronous belt, a toothed pulley, a first cylinder, and a second cylinder. The synchronous belt is wound around the toothed pulley and forms a meshing transmission relationship with it. The synchronous belt has an open structure, with its first end connected to the piston rod of the first cylinder and its second end connected to the piston rod of the second cylinder. The first and second cylinders cooperate to tension the synchronous belt. The first and second cylinders synchronously extend and retract in opposite directions, driving the rotating frame to reciprocate, causing the material frame on it to switch positions between a first angular position and a second angular position. The material frame can input the inner cylinder at the first angular position and output the inner cylinder at the second angular position. Therefore, the material frame can transfer and load the inner cylinder by switching positions between the first and second angular positions. The above-mentioned driving device drives the rotating frame to rotate through the cylinder and synchronous belt mechanism, resulting in more accurate positioning and lower cost.

[0046] This application embodiment also provides a rotary inner cylinder transfer and loading mechanism, including a rotating frame and a driving device. The rotating frame is provided with a rotating shaft, and a material frame is arranged around the rotating shaft. The driving device is used to drive the rotating frame to rotate so that the material frame on it changes position between a first angular position and a second angular position; the material frame is used for inner cylinder input at the first angular position and inner cylinder output at the second angular position.

[0047] The drive unit includes a chain, a sprocket, a first cylinder, and a second cylinder; the sprocket is mounted on a rotating shaft; the chain is wound around the sprocket and forms a meshing transmission relationship with the sprocket; the chain has an open structure, with its first end connected to the piston rod of the first cylinder and its second end connected to the piston rod of the second cylinder; the first cylinder and the second cylinder cooperate to tension the chain; the first cylinder and the second cylinder synchronously extend and retract in opposite directions to drive the rotating frame to reciprocate, causing the material frame on it to switch positions between a first angular position and a second angular position.

[0048] In some embodiments, the first cylinder and the second cylinder are arranged in parallel on the same side of the sprocket.

[0049] In some embodiments, a plurality of material frames are arranged circumferentially around the rotating shaft; as the driving device drives the rotating frame to rotate, each material frame of the rotating frame sequentially reaches a first angular position and a second angular position.

[0050] In some embodiments, the angle distribution of the material frame is such that the material frame arrives at both the first angular position and the second angular position simultaneously during the rotation of the rotating frame.

[0051] In some embodiments, the rotating frame is provided with a first material frame and a second material frame, which are respectively disposed on both sides of the rotating shaft; a first angular position and a second angular position are respectively disposed on both sides of the rotating shaft; during the rotation of the rotating frame, when the first material frame reaches the first angular position, the second material frame reaches the second angular position; when the first material frame reaches the second angular position, the second material frame reaches the first angular position.

[0052] In some embodiments, the material frame has a first side and a second side opposite to each other; when the inner cylinder cake passes through the material frame from the first side to the second side, the material frame can block the tie of the inner cylinder cake and allow the inner cylinder of the inner cylinder cake to pass through; when the material frame is in a first angular position, the inner cylinder enters the material frame from the first side of the material frame; when the material frame is in a second angular position, the inner cylinder exits the material frame from the second side of the material frame.

[0053] Compared to the previous embodiment, the rotary inner cylinder transfer loading mechanism provided in this embodiment replaces the synchronous belt 21 with a chain and the toothed pulley 22 with a sprocket. The working process and technical effect are basically the same, and will not be described in detail here.

[0054] This application embodiment also provides an inner cylinder feeding assembly, which includes: the rotary inner cylinder transfer and loading mechanism provided in the previous part, a hopper 200, an inner cylinder cake feeding mechanism 300, and a pushing mechanism 400. When the material frame 12 on the rotating frame 10 reaches a first angular position, the inner cylinder cake feeding mechanism 300 aligns with the material frame 12 on the rotating frame 10 at the first angular position to load the inner cylinder into the material frame 12. When the material frame 12 on the rotating frame 10 reaches a second angular position, the material frame 12 on the rotating frame 10 at the second angular position aligns with the hopper 200, and the pushing mechanism 400 pushes the inner cylinder in the material frame 12 into the hopper 200. In some embodiments, the shape and size of the material frame 12 and the hopper 200 are adapted to the inner cylinder cake to precisely accommodate one inner cylinder cake.

[0055] refer to Figure 5 The inner cylinder feeding assembly includes a rotary inner cylinder transfer and loading mechanism, a hopper 200, an inner cylinder cake feeding mechanism 300, and a pushing mechanism 400. Driven by the drive device 20, the material frame 12 on the rotating frame 10 changes position between a first angular position and a second angular position. When the material frame 12 on the rotating frame 10 reaches the first angular position, the inner cylinder cake feeding mechanism 300 aligns with the material frame 12 on the rotating frame 10 at the first angular position to load the inner cylinder P into the material frame 12. When the material frame 12 on the rotating frame 10 reaches the second angular position, the material frame 12 on the rotating frame 10 at the second angular position aligns with the hopper 200, and the pushing mechanism 400 pushes the inner cylinder P in the material frame 12 into the hopper 200. During feeding, operators or automated equipment can load the inner cylinder cake onto the inner cylinder cake feeding mechanism 300. Then, the inner cylinder cake feeding mechanism 300 loads the inner cylinder cake onto the material frame 12 on the rotating frame 10. Finally, the inner cylinder in the material frame 12 is loaded into the hopper 200. At this point, the inner cylinder of the inner cylinder cake is loaded into the hopper 200, completing the inner cylinder feeding. The hopper 200 can then discharge the inner cylinder for final loading into the outer cylinder of the firework. It should be noted that the inner cylinder cake feeding mechanism 300 and the pushing mechanism 400 are conventional components in existing firework equipment and will not be specifically limited or described here. Furthermore, there are numerous existing solutions for loading the outer cylinder of the firework from the hopper 200, which will not be elaborated upon here.

[0056] The inner cylinder feeding assembly provided in this embodiment includes the rotary inner cylinder transfer loading mechanism described in the previous section. For details on the rotary inner cylinder transfer loading mechanism, please refer to the description in the previous section, which will not be repeated here.

[0057] This application also provides a fireworks production equipment, which includes the rotary inner cylinder transfer and loading mechanism described in the previous section. Here, "fireworks production equipment" can refer to either a fireworks production line or the equipment for the inner cylinder filling section. The fireworks production equipment provided in this embodiment includes the rotary inner cylinder transfer and loading mechanism described in the previous section; details regarding the rotary inner cylinder transfer and loading mechanism can be found in the previous description and will not be repeated here.

[0058] It should be noted that, in this application, unless otherwise specified or clearly defined, "inner tube" can refer to the inner tube after the cable ties have been untied, or it can refer to the inner tube cake with the cable ties still in place, and can be reasonably interpreted according to the possible circumstances.

[0059] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0061] The specific embodiments described herein are merely illustrative examples of the technical solutions of this application. Those skilled in the art to which this application pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the scope defined by the claims of this application.

Claims

1. A rotary inner cylinder transfer and loading mechanism, characterized in that, include: A rotating frame is provided with a rotating shaft, and a material frame is arranged around the rotating shaft; A driving device is used to drive the rotating frame to rotate so that the material frame on it can switch positions between a first angular position and a second angular position; the material frame is used for inner cylinder input at the first angular position and inner cylinder output at the second angular position. The driving device includes a synchronous belt, a toothed pulley, a first cylinder, and a second cylinder; the toothed pulley is mounted on the rotating shaft; the synchronous belt is wound around the toothed pulley and forms a meshing transmission relationship with the toothed pulley; the synchronous belt has an open structure, with its first end connected to the piston rod of the first cylinder and its second end connected to the piston rod of the second cylinder; the first cylinder and the second cylinder cooperate to tension the synchronous belt; the first cylinder and the second cylinder synchronously extend and retract in opposite directions to drive the rotating frame to reciprocate, causing the material frame on it to switch positions between a first angular position and a second angular position.

2. The rotary inner cylinder transfer and loading mechanism according to claim 1, characterized in that, The first cylinder and the second cylinder are arranged in parallel on the same side of the toothed pulley.

3. The rotary inner cylinder transfer and loading mechanism according to claim 1, characterized in that, Multiple material frames are arranged circumferentially around the rotating shaft; as the driving devices on both sides of the rotating shaft drive the rotating frame to rotate, each material frame of the rotating frame sequentially reaches the first angular position and the second angular position.

4. The rotary inner cylinder transfer and loading mechanism according to claim 3, characterized in that, The angle distribution of the material frame ensures that the material frame arrives at both the first angle position and the second angle position simultaneously during the rotation of the rotating frame.

5. The rotary inner cylinder transfer and loading mechanism according to claim 4, characterized in that, The rotating frame is provided with a first material frame and a second material frame, which are respectively disposed on both sides of the rotating shaft; the first angular position and the second angular position are respectively disposed on both sides of the rotating shaft; During the rotation of the rotating frame, when the first material frame reaches the first angular position, the second material frame reaches the second angular position; when the first material frame reaches the second angular position, the second material frame reaches the first angular position.

6. The rotary inner cylinder transfer and loading mechanism according to claim 1, characterized in that, The material frame has a first side and a second side; when the inner cylinder cake passes through the material frame from the first side to the second side, the material frame can block the tie of the inner cylinder cake and allow the inner cylinder of the inner cylinder cake to pass through; When the material frame is in the first angular position, the inner cylinder inputs the material frame from the first side of the material frame; when the material frame is in the second angular position, the inner cylinder outputs the material frame from the second side of the material frame.

7. The rotary inner cylinder transfer and loading mechanism according to any one of claims 1-6, characterized in that, The timing belt is replaced by a chain, and the toothed pulley is replaced by a sprocket.

8. An inner cylinder feeding assembly, characterized in that, The inner cylinder feeding assembly includes: a rotary inner cylinder transfer and loading mechanism as described in any one of claims 1-7, as well as a hopper, an inner cylinder cake feeding mechanism, and a pushing mechanism; When the material frame on the rotating frame reaches the first angle position, the inner cylinder cake feeding mechanism aligns with the material frame on the rotating frame located at the first angle position to load the inner cylinder into the material frame; When the material frame on the rotating frame reaches the second angle position, the material frame on the rotating frame at the second angle position is aligned with the hopper, and the pushing mechanism pushes the inner cylinder in the material frame into the hopper.

9. The inner cylinder feeding assembly according to claim 8, characterized in that, The shape and size of the material frame and the hopper are adapted to the inner cylinder cake so as to just accommodate one inner cylinder cake.

10. A fireworks production equipment, characterized in that, The fireworks production equipment has a rotary inner cylinder transfer and loading mechanism as described in any one of claims 1-7.

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