Inner cylinder cake feeding assembly, inner cylinder filling equipment and combined firework production line

Abstract

The utility model provides an inner cylinder cake feeding assembly, inner cylinder filling equipment and a combined firework production line, and relates to the technical field of firework production equipment, the inner cylinder cake feeding assembly comprises an action mechanism, and a transfer stock bin, a gripper and a pushing mechanism are arranged on the action mechanism; the transfer stock bin and the pushing mechanism are arranged on the two opposite sides of the gripper correspondingly. The action mechanism can drive parts connected to the action mechanism to move; a transfer trough for accommodating the inner cylinder is formed in the transfer bin; a bin gate mechanism capable of opening or closing the transfer trough is arranged at the bottom of the transfer trough; the gripper is used for gripping an inner cylinder cake; and the pushing mechanism is used for pushing the inner barrel grabbed by the grabber into the transfer trough. According to the inner cylinder cake feeding assembly, automatic feeding can be achieved, personnel isolation is facilitated, and personnel safety is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of fireworks production equipment, and in particular to an inner tube cake loading assembly, an inner tube filling device, and a combined fireworks production line. Background Art

[0002] The inner tube of a firework is a core component in the structure of a firework, primarily responsible for loading the pyrotechnic composition and achieving lift, explosion, and display effects during ignition. Typically, the inner tube cake is the basic unit of firework production. The inner tube cake is a hexagonal shape, made by combining multiple firework inner tubes with cable ties. Current firework inner tube equipment requires manual disassembly and loading of the inner tube cakes into a hopper during operation. This requires manual loading, requiring operators to be close to the hopper to load the inner tubes, which compromises safety. Furthermore, due to the low level of automation in the loading phase of current firework inner tube equipment, the cable ties on the inner tube cakes must be removed one by one, requiring significant manpower. Utility Model Content

[0003] The technical problem to be solved by this application is to propose an inner tube cake loading assembly, an inner tube filling device and a combined fireworks production line in response to the above-mentioned deficiencies in the prior art.

[0004] An inner cylinder cake loading assembly, comprising: an action mechanism, on which a transfer bin, a gripper, and a pushing mechanism are arranged; the transfer bin and the pushing mechanism are respectively arranged on opposite sides of the gripper;

[0005] The action mechanism can drive the components connected thereto to move;

[0006] The transfer silo is provided with a transfer trough for accommodating the inner cylinder; the bottom of the transfer trough is provided with a silo door mechanism capable of opening or closing the transfer trough;

[0007] The gripper is used to grab the inner cake;

[0008] The pushing mechanism is used to push the inner cylinder grasped by the gripper into the transfer trough.

[0009] Optionally, the gripper includes a first clamping arm, a second clamping arm, and a first driving device; the first driving device is used to drive the first clamping arm and the second clamping arm to move, so that the first clamping arm and the second clamping arm clamp the inner cylinder cake from opposite sides of the inner cylinder cake;

[0010] Both the first clamping arm and the second clamping arm are provided with a first clamping part and a second clamping part; the first clamping part and the second clamping part are spaced apart from each other in the front and rear along the pushing direction of the pushing mechanism, and the first clamping part is located on the side close to the transfer bin, and the second clamping part is located on the side close to the pushing mechanism;

[0011] When the first clamping arm and the second clamping arm clamp the inner barrel cake, for any clamping arm, the first clamping part and the second clamping part respectively abut against the inner barrel side surfaces on both sides of the tie strap on the inner barrel cake, so that the tie strap on the inner barrel cake is placed in the gap between the first clamping part and the second clamping part. Thus, when the pushing mechanism pushes the inner barrel clamped between the first clamping arm and the second clamping arm forward into the transfer chute, the first clamping part can block the tie strap on the inner barrel cake to separate it from the inner barrel.

[0012] Optionally, the first clamping arm and the second clamping arm are further provided with a base, and the first clamping part and the second clamping part are spaced apart on the base, so that the cross-sections of the two clamping arms are in a "U" shape.

[0013] Optionally, the pushing mechanism includes a pushing frame and a second driving device; the second driving device is used to drive the pushing frame to act to push the inner barrel clamped between the first clamping arm and the second clamping arm forward into the transfer chute; the pushing frame is provided with a pushing head for pushing the inner barrel; the pushing head is adapted to the shape of the inner barrel cake;

[0014] When the pushing head pushes the inner barrel clamped between the first clamping arm and the second clamping arm forward into the transfer chute, after the tie strap of the inner barrel cake is separated from the inner barrel, it can slide onto the pushing head; when the pushing head retracts, the second clamping part can block the tie strap on the pushing head to separate it from the pushing head and drop.

[0015] Optionally, two door mechanisms are arranged at the bottom of the transfer bin; the door mechanism includes a material blocking part and a third driving device;

[0016] Viewed along the direction of the inner barrel pushed into the transfer chute by the pushing mechanism, the material blocking parts of the two door mechanisms form a V-shaped structure; the third driving devices of the two door mechanisms can drive their respective material blocking parts to act to open or close the transfer chute;

[0017] The material blocking part extends towards the gripper side to the bottom area of the gripper.

[0018] Optionally, when observing from the direction of the inner cylinder pushed into the transfer trough by the pushing mechanism, the transfer trough is hexagonal in shape, adapted to the shape of the inner cylinder cake, and a feed port is provided on the side facing the gripper; the blocking parts of the two bin door mechanisms respectively constitute the two blocking edges below the transfer trough.

[0019] Optionally, the transfer silo is equipped with a fourth drive device; when the gripper grabs the inner cylinder cake, the fourth drive device can drive the transfer silo to move upward relative to the gripper and staggered with the height of the gripper when the blocking members of the two silo door mechanisms are opened.

[0020] Optionally, the action mechanism includes:

[0021] An x-direction moving unit, configured to achieve movement in a first horizontal direction;

[0022] a y-direction moving unit, configured to realize movement in a second horizontal direction; wherein the first horizontal direction and the second horizontal direction are horizontal directions perpendicular to each other;

[0023] A z-direction moving unit, used to achieve vertical movement;

[0024] Wherein, the x-direction moving unit is assembled on a fixed bracket; the y-direction moving unit is assembled on a moving component of the x-direction moving unit, and the z-direction moving unit is assembled on a moving component of the y-direction moving unit;

[0025] The transfer silo is connected to the moving component of the z-direction moving unit via the fourth driving device;

[0026] The gripper is assembled on the moving part of the z-direction moving unit;

[0027] The pushing mechanism is assembled on the fixed component of the z-direction moving unit.

[0028] The present application also provides an inner drum filling device, which has the above-mentioned inner drum cake loading assembly.

[0029] The present application also provides a combined fireworks production line, which has the above-mentioned inner tube filling device.

[0030] The inner tube cake loading assembly provided by this application comprises a transfer bin, a gripper, and a pushing mechanism arranged on an action mechanism; the action mechanism is capable of driving the connected components to achieve movement; the transfer bin is provided with a transfer trough for accommodating the inner tube; the bottom of the transfer trough is provided with a door mechanism capable of opening or closing the transfer trough; the gripper is used to grab the inner tube cake; and the pushing mechanism is used to push the inner tube grabbed by the gripper into the transfer trough. The inner tube cake loading assembly provided by this application can realize automated loading, facilitate isolation of personnel, and ensure personnel safety.

[0031] Furthermore, the gripper is provided with a first clamping arm and a second clamping arm; the first clamping arm and the second clamping arm are both provided with a first clamping portion and a second clamping portion; when the first clamping arm and the second clamping arm clamp the inner cylinder cake, the first clamping portion and the second clamping portion respectively abut against the side surfaces of the inner cylinder on both sides of the tie on the inner cylinder cake, so that the tie on the inner cylinder cake is placed in the gap between the first clamping portion and the second clamping portion. Therefore, when the pushing mechanism pushes the inner cylinder clamped between the first clamping arm and the second clamping arm forward into the transfer trough, the first clamping portion can block the tie on the inner cylinder cake and separate it from the inner cylinder. Therefore, there is no need to manually remove the tie on the inner cylinder cake when loading, which reduces labor intensity and is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of the inner cylinder cake in the embodiment of the present application.

[0033] Figure 2 This is one of the overall structural diagrams of the inner drum cake feeding assembly in the embodiment of the present application.

[0034] Figure 3 This is the second overall structural diagram of the inner drum cake feeding assembly in the embodiment of the present application.

[0035] Figure 4 This is one of the partial structural diagrams of the inner drum cake feeding assembly in the embodiment of the present application.

[0036] Figure 5 This is the second partial structural diagram of the inner drum cake feeding assembly in the embodiment of the present application.

[0037] Figure 6 This is the third partial structural diagram of the inner drum cake feeding assembly in the embodiment of the present application.

[0038] Figure 7 This is the fourth partial structural diagram of the inner drum cake feeding assembly in the embodiment of the present application.

[0039] Figure 8 This is the fifth partial structural diagram of the inner drum cake feeding assembly in the embodiment of the present application.

[0040] Figure numerals: action mechanism 10, x-direction moving unit 11, y-direction moving unit 12, z-direction moving unit 13, fourth drive device 14, transfer silo 20, transfer trough 21, silo door mechanism 22, material blocking member 221, third drive device 222, gripper 30, first clamping arm 31, second clamping arm 32, first clamping part 311, second clamping part 312, base 313, first drive device 33, pushing mechanism 40, pushing frame 41, pushing head 411, second drive device 42, inner cylinder cake 50, inner cylinder 51, cable tie 52, hopper 60. DETAILED DESCRIPTION

[0041] The following are specific embodiments of the present application and, in conjunction with the accompanying drawings, further description of the technical solutions of the present application is provided, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided solely to assist in a comprehensive understanding of the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of protection of the present application. In addition, for clarity and brevity, descriptions of known functions and configurations have been omitted.

[0042] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0043] The inner cylinder cake loading assembly provided in this application is used for loading inner cylinder filling equipment, specifically for loading inner cylinder cakes. Furthermore, the inner cylinder of a firework is the core component of the firework structure, primarily responsible for loading the pyrotechnic composition and achieving lift, explosion, and display effects during ignition. Typically, the inner cylinder cake is the basic unit of firework production. The inner cylinder cake is composed of multiple inner cylinders connected together by cable ties, forming a hexagonal shape. Figure 1 The structure of the inner cylinder cake is shown. The inner cylinder cake 50 includes multiple inner cylinders 51 and tie ties 52. The inner cylinders 51 are combined together by the tie ties 52 to form a hexagonal inner cylinder cake.

[0044] refer to Figure 2-Figure 4 The inner tube cake loading assembly includes an actuator 10, on which are arranged a transfer hopper 20, a gripper 30, and a pushing mechanism 40. The transfer hopper 20 and the pushing mechanism 40 are arranged on opposite sides of the gripper 30. The actuator 10 is capable of driving the components connected thereto to achieve movement. The transfer hopper 20 is provided with a transfer trough 21 for accommodating the inner tube cakes. The bottom of the transfer trough 21 is provided with a door mechanism 22 that can open and close the transfer trough 21. The gripper 30 is used to grasp the inner tube cake 50. The pushing mechanism 40 is used to push the inner tube cake grasped by the gripper 30 into the transfer trough 21.

[0045] During operation, the actuating mechanism 10 can drive the transfer bin 20, the gripper 30, and the pushing mechanism 40 to move. When the gripper 30 moves to a predetermined position, it grabs the inner barrel cake 50; after the gripper 30 grabs the inner barrel cake, the pushing mechanism 40 pushes the inner barrel grabbed by the gripper 30 into the transfer chute 21. Finally, driven by the actuating mechanism 10, the transfer bin 20 moves to the position where the hopper 60 is located, the bin door mechanism 22 is opened, and the inner barrel in the transfer chute 21 drops down into the hopper 60.

[0046] Reference Figure 4-Figure 8 , the gripper 30 includes a first clamping arm 31, a second clamping arm 32, and a first driving device 33; the first driving device 33 is used to drive the first clamping arm 31 and the second clamping arm 32 to act, so that the first clamping arm 31 and the second clamping arm 32 clamp the inner barrel cake 50 from both opposite sides of the inner barrel cake 50. The first driving device 33 can be set as various types of driving devices according to needs, for example, a cylinder, an electric cylinder, etc. When the first clamping arm 31 and the second clamping arm 32 move to both opposite sides of the inner barrel cake 50, the first driving device 33 can drive the first clamping arm 31 and the second clamping arm 32 to approach each other to clamp the inner barrel cake 50. When it is necessary to release the inner barrel cake 50, the first driving device 33 can drive the first clamping arm 31 and the second clamping arm 3to move away from each other so that the first clamping arm 31, the second clamping arm 32 are disengaged from the inner barrel cake 50.

[0047] Both the first clamping arm 31 and the second clamping arm 32 are provided with a first clamping portion 311 and a second clamping portion 312; the first clamping portion 311 and the second clamping portion 312 are spaced apart from each other along the pushing direction of the pushing mechanism 40, and the first clamping portion 311 is located on the side close to the transfer bin 20, and the second clamping portion 312 is located on the side close to the pushing mechanism 40. When the first clamping arm 31 and the second clamping arm 32 clamp the inner barrel cake 50, for any clamping arm, the first clamping portion 311 and the second clamping portion 312 respectively abut against the inner barrel side surfaces on both sides of the tie strap on the inner barrel cake 50, so that the tie strap on the inner barrel cake 50 is placed in the gap between the first clamping portion 311 and the second clamping portion 312, so that when the pushing mechanism 40 pushes the inner barrel clamped between the first clamping arm 31 and the second clamping arm 32 forward into the transfer chute 21, the first clamping portion 311 can block the tie strap on the inner barrel cake 50 to separate it from the inner barrel.

[0048] Furthermore, the first clamping arm 31 and the second clamping arm 32 are also provided with a base 313, and the first clamping portion 311 and the second clamping portion 312 are spaced apart on the base 313, so that the cross-sections of the two clamping arms are in a "U" shape.

[0049] The pushing mechanism 40 includes a pushing frame 41 and a second drive device 42. The second drive device 42 is used to drive the pushing frame 41 to push the inner cylinder, which is clamped between the first clamping arm 31 and the second clamping arm 32, forward into the transfer trough 21. The pushing frame 41 is equipped with a pushing head 411 for pushing the inner cylinder. The pushing head 411 is adapted to the shape of the inner cylinder. When the pushing head 411 pushes the inner cylinder, which is clamped between the first clamping arm 31 and the second clamping arm 32, forward into the transfer trough 21, the cable tie of the inner cylinder biscuit separates from the inner cylinder and slides onto the pushing head 411. When the pushing head 411 retracts, the second clamping portion 312 blocks the cable tie on the pushing head 411, causing it to separate from the pushing head 411 and fall off. In this structure, the second drive device 42 can be configured as various types of driving devices as needed, such as a pneumatic cylinder, an electric cylinder, etc.

[0050] While the first and second clamping arms 31 and 32 maintain a clamped state around the inner tube cake 50, as the push head 411 pushes the inner tube held between the first and second clamping arms 31 and 32 forward into the transfer trough 21, the cable tie 52 is blocked by the first clamping portion 311 in front and separated from the inner tube 51. Therefore, as the push head 411 pushes the inner tube 51 into the transfer trough 21, the inner tube 51 and cable tie 52 of the inner tube cake 50 separate, simultaneously achieving unbundling of the inner tube cake. This eliminates the need to manually remove the cable tie from the inner tube cake during loading, reducing labor intensity and improving safety. At this point, as the push head 411 retracts, the second clamping portion 312 blocks the cable tie on the push head 411, causing it to separate from the push head 411 and fall off.

[0051] In one embodiment of the present application, two door mechanisms 22 are arranged at the bottom of the transfer hopper 20. The door mechanisms 22 include a material stopper 221 and a third drive device 222. When viewed along the direction of the inner cylinder pushed into the transfer trough 21 by the pushing mechanism 40, the material stoppers 221 of the two door mechanisms 22 form a V-shaped structure. The third drive devices 222 of the two door mechanisms 22 can drive their respective material stoppers 221 to open or close the transfer trough 21. The material stoppers 221 extend toward the gripper 30 to the bottom area of the gripper 30. In this structure, the material stoppers 221 of the two door mechanisms 22 form a V-shaped structure and extend to the bottom area of the gripper 30, which facilitates positioning of the inner cylinder cake and guides the inner cylinder into the transfer trough 21.

[0052] refer to Figure 7 Observing the direction in which the inner cylinder is pushed into the transfer trough 21 by the pushing mechanism 40, the transfer trough 21 is hexagonal in shape, matching the shape of the inner cylinder cake. It has a feed inlet on the side facing the gripper 30. The retaining members 221 of the two door mechanisms 22 form two retaining edges below the transfer trough 21. After the inner cylinder of the inner cylinder cake is pushed into the transfer trough 21, the inner cylinder fills the transfer trough 21.

[0053] In one embodiment of the present application, the transfer bin 20 is equipped with a fourth drive device 14; when the gripper 30 grabs the inner tube cake, the fourth drive device 14 can drive the transfer bin 20 to move upward relative to the gripper 30 and be staggered in height with the gripper 30 when the blocking members 221 of the two bin door mechanisms 22 are opened.

[0054] The motion mechanism 10 includes an x-movement unit 11, a y-movement unit 12, and a z-movement unit 13. The x-movement unit 11 is used to achieve movement in a first horizontal direction; the y-movement unit 12 is used to achieve movement in a second horizontal direction; the first and second horizontal directions are perpendicular to each other; and the z-movement unit 13 is used to achieve vertical movement. The x-movement unit 11 is mounted on a fixed bracket; the y-movement unit 12 is mounted on the moving component of the x-movement unit 11; and the z-movement unit 13 is mounted on the moving component of the y-movement unit 12. The transfer bin 20 is connected to the moving component of the z-movement unit 13 via a fourth drive device 14. The gripper is mounted on the moving component of the z-movement unit 13; and the pushing mechanism is mounted on the fixed component of the z-movement unit 13. In one specific technical solution, the x-movement unit, the y-movement unit, and the z-movement unit are all linear modules.

[0055] Driven by the x-, y-, and z-movement units 11, 12, and 13, the gripper can move in the first, second, and vertical directions, enabling the transfer of inner tubes within space. The transfer bin 20 is connected to the moving components of the z-movement unit 13 via a fourth drive mechanism 14. When the gripper 30 grabs an inner tube cake, the fourth drive mechanism 14 can drive the transfer bin 20 upward relative to the gripper 30, staggering its height, while the material retaining members 221 of the two bin door mechanisms 22 are open. Here, the material retaining member 221 is open, preventing interference with the gripper 30.

[0056] The x-direction moving unit, the y-direction moving unit, and the z-direction moving unit are used to achieve movement in their respective directions. It should be understood that each moving unit includes a fixed component and a moving component. When driven, the moving component can move relative to the fixed component to produce movement in the corresponding direction. Here, the gripper is assembled on the moving component 132 of the z-direction moving unit 13, and the pushing mechanism is assembled on the fixed component 131 of the z-direction moving unit 13. Therefore, when the z-direction moving unit 13 moves downward, the moving component 132 moves downward relative to the fixed component 131, and the gripper extends downward relative to the pushing mechanism. Under this installation method, the gripper can be moved vertically by the z-direction moving unit 13; the pushing mechanism remains stationary in the vertical direction.

[0057] like Figure 5 As shown, when the z-direction moving unit drives the gripper downward to grab the inner cake, the gripper extends downward relative to the pushing mechanism, and the fourth driving device 14 drives the transfer bin 20 to move upward relative to the gripper 30 to be staggered in height with the gripper 30. At this time, the gripper extends alone to grab the inner cake without being interfered by the pushing mechanism and the transfer bin 20. Figure 5 After the gripper grabs the inner tube cake, the z-direction moving unit drives the gripper to retract upward, and the fourth driving device 14 drives the transfer bin 20 to move downward relative to the gripper 30. At this time, the inner tube cake grabbed by the gripper, the pushing head 411, and the transfer trough 21 are aligned with each other. After closing the hopper door mechanism 22, the pushing mechanism 40 can push the inner tube grabbed by the gripper 30 into the transfer trough 21.

[0058] The present application also provides an inner cylinder filling device comprising the aforementioned inner cylinder cake loading assembly. The inner cylinder cake loading assembly includes an actuating mechanism, on which are arranged a transfer hopper, a gripper, and a pushing mechanism. The transfer hopper and the pushing mechanism are arranged on opposite sides of the gripper. The actuating mechanism is capable of driving the components connected thereto to move. The transfer hopper is provided with a transfer trough for accommodating the inner cylinders. The bottom of the transfer trough is provided with a door mechanism capable of opening and closing the transfer trough. The gripper is used to grasp the inner cylinder cake. The pushing mechanism is used to push the inner cylinder grasped by the gripper into the transfer trough. During operation, the actuating mechanism drives the transfer hopper, gripper, and pushing mechanism to move. When the gripper moves to a predetermined position, it grasps the inner cylinder cake. After the gripper grasps the inner cylinder cake, the pushing mechanism pushes the inner cylinder grasped by the gripper into the transfer trough. Finally, driven by the action mechanism, the transfer bin moves to the location of the hopper, the bin door mechanism opens, and the inner cylinder in the transfer trough drops the material into the hopper. For more detailed instructions, please refer to the previous part and will not be repeated here.

[0059] The present application also provides a combined fireworks production line, which includes the inner tube filling device described above. For more detailed descriptions, please refer to the previous section and will not be repeated here.

[0060] The inner tube cake loading assembly provided in the embodiment of the present application comprises a transfer bin, a gripper, and a pushing mechanism arranged on an action mechanism; the action mechanism is capable of driving the connected components to achieve movement; the transfer bin is provided with a transfer trough for accommodating the inner tube; the bottom of the transfer trough is provided with a door mechanism capable of opening or closing the transfer trough; the gripper is used to grab the inner tube cake; and the pushing mechanism is used to push the inner tube grabbed by the gripper into the transfer trough. The inner tube cake loading assembly provided in the present application can realize automated loading, facilitate isolation of personnel, and ensure personnel safety.

[0061] Furthermore, the gripper is provided with a first clamping arm and a second clamping arm; the first clamping arm and the second clamping arm are both provided with a first clamping portion and a second clamping portion; when the first clamping arm and the second clamping arm clamp the inner cylinder cake, the first clamping portion and the second clamping portion respectively abut against the side surfaces of the inner cylinder on both sides of the tie on the inner cylinder cake, so that the tie on the inner cylinder cake is placed in the gap between the first clamping portion and the second clamping portion. Therefore, when the pushing mechanism pushes the inner cylinder clamped between the first clamping arm and the second clamping arm forward into the transfer trough, the first clamping portion can block the tie on the inner cylinder cake and separate it from the inner cylinder. Therefore, there is no need to manually remove the tie on the inner cylinder cake when loading, which reduces labor intensity and is safer.

[0062] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprises" and / or "includes" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0064] The specific embodiments described herein are merely examples of the technical solutions of this application. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them with similar methods without departing from the scope defined by the claims of this application.

Claims

1. An inner drum cake feeding assembly, characterized in that: The inner cylinder cake feeding component includes: an actuating mechanism, on which a transfer bin, a gripper, and a pushing mechanism are arranged; the transfer bin and the pushing mechanism are respectively arranged on opposite sides of the gripper; The actuating mechanism can drive the components connected thereto to move; The transfer bin is provided with a transfer chute for accommodating the inner cylinder; the bottom of the transfer chute is provided with a bin door mechanism capable of opening or closing the transfer chute; The gripper is used for gripping the inner cylinder cake; The pushing mechanism is used for pushing the inner cylinder gripped by the gripper into the transfer chute.

2. The inner drum cake feeding assembly according to claim 1, characterized in that: The gripper includes a first clamping arm, a second clamping arm, and a first driving device; the first driving device is used for driving the first clamping arm and the second clamping arm to act, so that the first clamping arm and the second clamping arm clamp the inner cylinder cake from opposite sides of the inner cylinder cake; Both the first clamping arm and the second clamping arm are provided with a first clamping portion and a second clamping portion; the first clamping portion and the second clamping portion are spaced apart from each other in the pushing direction of the pushing mechanism, and the first clamping portion is located on the side close to the transfer bin, and the second clamping portion is located on the side close to the pushing mechanism; When the first clamping arm and the second clamping arm clamp the inner cylinder cake, for any clamping arm, the first clamping portion and the second clamping portion respectively abut against the inner cylinder side surfaces on both sides of the tie strap on the inner cylinder cake, so that the tie strap on the inner cylinder cake is placed in the gap between the first clamping portion and the second clamping portion. Thus, when the pushing mechanism pushes the inner cylinder clamped between the first clamping arm and the second clamping arm forward into the transfer chute, the first clamping portion can block the tie strap on the inner cylinder cake to separate it from the inner cylinder.

3. The inner drum cake feeding assembly according to claim 2, characterized in that: The first clamping arm and the second clamping arm are further provided with a base, and the first clamping portion and the second clamping portion are spaced apart on the base, so that the cross sections of the two clamping arms are in a "U" shape.

4. The inner drum cake feeding assembly according to claim 2, characterized in that: The pushing mechanism includes a pushing frame and a second driving device; the second driving device is used for driving the pushing frame to act to push the inner cylinder clamped between the first clamping arm and the second clamping arm forward into the transfer chute; the pushing frame is provided with a pushing head for pushing the inner cylinder; the pushing head is adapted to the shape of the inner cylinder cake; When the pushing head pushes the inner cylinder clamped between the first clamping arm and the second clamping arm forward into the transfer chute, the tie strap of the inner cylinder cake can slide onto the pushing head after being separated from the inner cylinder; when the pushing head retracts, the second clamping portion can block the tie strap on the pushing head to separate it from the pushing head and drop off.

5. The inner drum cake feeding assembly according to claim 2, characterized in that: Two bin door mechanisms are arranged at the bottom of the transfer bin; the bin door mechanism includes a baffle and a third driving device; Viewed along the direction of the inner cylinder pushed into the transfer chute by the pushing mechanism, the baffles of the two bin door mechanisms form a V-shaped structure; the third driving devices of the two bin door mechanisms can drive their respective baffles to act to open or close the transfer chute; The baffle extends towards the gripper side to the bottom area of the gripper.

6. The inner drum cake feeding assembly according to claim 5, characterized in that: Observing the direction of the inner cylinder pushed into the transfer trough by the pushing mechanism, the transfer trough is hexagonal in shape, which is adapted to the shape of the inner cylinder cake, and a feed port is provided on the side facing the gripper; the blocking parts of the two bin door mechanisms respectively constitute the two blocking edges below the transfer trough.

7. The inner drum cake feeding assembly according to claim 5, characterized in that: The transfer silo is equipped with a fourth driving device; when the gripper grabs the inner cylinder cake, the fourth driving device can drive the transfer silo to move upward relative to the gripper and staggered with the gripper height when the blocking members of the two silo door mechanisms are opened.

8. The inner drum cake feeding assembly according to claim 7, characterized in that: The action mechanism includes: An x-direction moving unit, configured to achieve movement in a first horizontal direction; a y-direction moving unit, configured to realize movement in a second horizontal direction; wherein the first horizontal direction and the second horizontal direction are horizontal directions perpendicular to each other; A z-direction moving unit, used to achieve vertical movement; Wherein, the x-direction moving unit is assembled on a fixed bracket; the y-direction moving unit is assembled on a moving component of the x-direction moving unit, and the z-direction moving unit is assembled on a moving component of the y-direction moving unit; The transfer silo is connected to the moving component of the z-direction moving unit via the fourth driving device; The gripper is assembled on the moving part of the z-direction moving unit; The pushing mechanism is assembled on the fixed component of the z-direction moving unit.

9. An inner cylinder filling device, characterized in that: The inner drum filling device has the inner drum cake loading assembly as described in any one of claims 1-8.

10. A combined fireworks production line, characterized in that: The combined fireworks production line has the inner tube filling device as described in claim 9.

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