Combined firework inner cylinder quantitative wet filling unit and wet filling device

Abstract

The utility model discloses a combined firework inner cylinder quantitative wet method filling unit which comprises a combined quantitative injection cylinder and an action driving device, a plurality of single quantitative injection cylinders are arranged in the combined quantitative injection cylinder and used for sucking and injecting firework liquid medicine, and the action driving device is used for driving the combined quantitative injection cylinder to move. The multiple single quantitative injection barrels are arranged according to the arrangement mode of the combined firework inner barrels, and the action driving device is used for driving the multiple single quantitative injection barrels to act. Compared with the prior art, the utility model has the advantages of higher safety, environmental protection and high efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to fireworks manufacturing technical field, especially a kind of combined fireworks inner tube quantitative wet filling unit and wet filling device. BACKGROUND

[0002] At present, the production line of combined fireworks inner tube charging generally adopts dry production mode, and this mode has many problems.

[0003] Firstly, the medicine powder filling adopts dry powder form, which makes the whole production process have extremely high flammable and explosive risk. Since fireworks inner tube charging usually involves multiple flammable and explosive chemicals, in the dry production process, the medicine powder in dry powder state is easy to cause accidental explosion due to friction, static electricity and other factors, which seriously threatens the life safety of production personnel and the property safety of factory.

[0004] Secondly, dry production will cause dust pollution. In the production process, dry medicine powder is easy to fly and diffuse in the air, which not only causes serious pollution to the production environment, but also may cause damage to the health of production personnel. Long-term stay in dust-polluted environment may cause respiratory diseases and other health problems.

[0005] In addition, each medicine powder is filled by separate equipment, which leads to generally long production line and large floor area. Long and complex production line not only increases equipment investment cost, but also makes production management more difficult. Large floor area of production line also limits the layout and development space of factory, increases land use cost.

[0006] In summary, the existing dry production mode of combined fireworks inner tube charging has problems such as high flammable and explosive risk, serious dust pollution and long production line with large floor area, and it is urgent to solve these technical problems by a safer, more environmentally friendly and efficient production mode. Therefore, a combined fireworks inner tube quantitative wet filling unit and wet filling device are proposed. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide a kind of combined fireworks inner tube quantitative wet filling unit and wet filling device to solve the technical problems proposed in the background art.

[0008] The above technical purpose of the utility model is realized by the following technical scheme:

[0009] A kind of combined fireworks inner tube quantitative wet filling unit, including combined quantitative injection barrel and action driving device, multiple single quantitative injection barrels are arranged in the combined quantitative injection barrel, for sucking and injecting fireworks liquid, multiple the single quantitative injection barrels are arranged according to the arrangement mode of combined fireworks inner tube, and the action driving device is used to drive multiple the single quantitative injection barrels action.

[0010] In a preferred embodiment, the single quantitative injection cylinder is provided with a piston body, the action driving device comprises a gas cavity, a gas pipe interface, a gas pipe and a gas control member, the gas cavity is connected to one end of the combined quantitative injection cylinder, for inflating or deflating the single quantitative injection cylinder, thereby controlling the movement of the piston body in the single quantitative injection cylinder, the gas pipe interface is connected to the gas cavity, the gas pipe is connected to the gas pipe interface, and the gas control member is connected to the gas pipe.

[0011] In a preferred embodiment, the single quantitative injection cylinder is provided with a piston limiting member for limiting the upward movement stroke of the piston body.

[0012] In a preferred embodiment, the piston limiting member comprises a piston baffle, the piston baffle is arranged between the gas cavity and the combined quantitative injection cylinder, and a plurality of through holes are arranged on the piston baffle in one-to-one correspondence with a plurality of single quantitative injection cylinders.

[0013] In a preferred embodiment, the piston limiting member further comprises a hollow cylinder, the hollow cylinder is arranged in the single quantitative injection cylinder and located between the piston body and the piston baffle, and the diameter of the through hole is smaller than the outer diameter of the hollow cylinder.

[0014] In a preferred embodiment, sealing gaskets are respectively arranged between the gas cavity and the piston baffle, and between the piston baffle and the combined quantitative injection cylinder.

[0015] In a preferred embodiment, the bottom end of the single quantitative injection cylinder is provided with an injection nozzle.

[0016] A combined fireworks inner cylinder quantitative wet filling device comprises the combined fireworks inner cylinder filling unit, an action frame, a wet medicine storage box and a transverse conveying device, the action frame comprises a longitudinal movement assembly and a transverse movement assembly, the combined fireworks inner cylinder filling unit is arranged on the longitudinal movement assembly and driven to move up and down by the longitudinal movement assembly, the longitudinal movement assembly is arranged on the transverse movement assembly and driven to move transversely by the transverse movement assembly, the wet medicine storage box is arranged on one side of the longitudinal movement assembly, and the transverse conveying device is arranged below the combined fireworks inner cylinder filling unit.

[0017] In a preferred embodiment, the longitudinal motion assembly comprises a vertical column, a longitudinal cylinder, a longitudinal guide rail, a longitudinal sliding block and a connecting block, the longitudinal cylinder and the longitudinal guide rail are arranged on the vertical column, the longitudinal sliding block is arranged on the longitudinal guide rail, the connecting block is arranged on the longitudinal sliding block, the longitudinal cylinder is connected with the connecting block for driving the connecting block to slide along the longitudinal guide rail, the combined firework inner tube filling unit is arranged on the connecting block, the transverse motion assembly comprises a horizontal column, a transverse cylinder, a transverse guide rail and a transverse sliding block, the transverse cylinder and the transverse guide rail are arranged on the horizontal column, the transverse sliding block is arranged on the transverse guide rail, the transverse cylinder is connected with the transverse sliding block for driving the transverse sliding block to move along the transverse guide rail, and the vertical column is connected with the transverse sliding block.

[0018] In a preferred embodiment, the wet medicine receiving tank is arranged between the wet medicine storage tank and the longitudinal motion assembly, and is used for receiving the medicine liquid dropped by the combined firework inner tube filling unit.

[0019] Compared with the prior art, the combined firework inner tube quantitative wet filling unit has the application mode of wet filling, in the production process, different several powders are mixed with water or resin into medicine liquid according to certain order and proportion in advance. The medicine liquid has good fluidity and is in the state of paste and mud. Compared with the traditional dry production, the wet production greatly reduces the risk of flammability and explosiveness. In the dry production, the dry powder medicine powder is easy to cause accidental explosion due to friction, static electricity and other factors, and the medicine liquid state is relatively stable, which greatly improves the safety of the production process.

[0020] Meanwhile, the wet production basically has no dust pollution. In the dry production, the dry powder medicine powder is easy to fly and diffuse in the air, which not only causes serious pollution to the production environment, but also causes damage to the health of the production personnel. The wet filling unit is used for production, which effectively reduces the pollution problem and creates a cleaner and healthier working environment for the production personnel.

[0021] In addition, the filling unit reduces two or more links in the dry firework charging production to one link. In the traditional dry production, each medicine powder is filled by a single device, and the production line is generally long and occupies a large area. The wet filling unit combines multiple single quantitative injection barrels together, and completes the suction and injection of the medicine liquid at one time, greatly reduces the length of the production line, and reduces the production line area. This not only reduces the equipment investment cost, but also makes the production management more convenient and efficient.

[0022] During the working process, the action driving device drives the single quantitative injection cylinder to act, so that the single quantitative injection cylinder can accurately suck the liquid medicine. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the combined firework inner tube quantitative wet filling unit (the first kind of visual angle), in the figure, only the structure of a single quantitative injection cylinder is complete.

[0024] Figure 2 is a structural schematic diagram of the combined firework inner tube quantitative wet filling unit (the second kind of visual angle), in the figure, only the structure of a single quantitative injection cylinder is complete.

[0025] Figure 3 is a structural schematic diagram of the combined firework inner tube quantitative wet filling unit (the virtual line is the internal structure), in the figure, only the structure of a single quantitative injection cylinder is complete.

[0026] Figure 4 is a structural schematic diagram of the combined firework inner tube quantitative wet filling device and the combined firework inner tube quantitative wet filling unit (the first kind of visual angle).

[0027] Figure 5 is a structural schematic diagram of the combined firework inner tube quantitative wet filling device and the combined firework inner tube quantitative wet filling unit (the second kind of visual angle).

[0028] Figure 6 is a structural schematic diagram of the combined firework inner tube quantitative wet filling device (the shaft side visual angle).

[0029] Figure 7 is a structural schematic diagram of the combined firework inner tube quantitative wet filling device (the front visual angle).

[0030] Figure 8 is a structural schematic diagram of the combined firework inner tube quantitative wet filling device (the overhead visual angle).

[0031] in the figure

[0032] Combined fireworks inner tube filling unit 1; combined quantitative injection cylinder 2; threaded hole 3; single quantitative injection cylinder 4; piston body 5; air cavity 6; air pipe interface 7; piston baffle 8; through hole 9; hollow cylinder 10; sealing gasket 11; injection nozzle 12; wet medicine storage box 13; column 14; longitudinal cylinder 15; longitudinal guide rail 16; longitudinal slider 17; connecting block 18; cross column 19; transverse cylinder 20; transverse guide rail 21; transverse slider 22; medicine receiving water trough 23; first bracket 24; second bracket 25; transverse conveying device 26; combined fireworks inner tube 27. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0035] like Figures 1 to 3 As shown, a quantitative wet filling unit for a combined firework inner tube includes a combined quantitative injection tube 2 and an action driving device. A plurality of single quantitative injection tubes 4 are arranged inside the combined quantitative injection tube 2 for sucking and injecting firework liquid. The plurality of single quantitative injection tubes 4 are arranged according to the arrangement of the combined firework inner tube, and the action driving device is used to drive the plurality of single quantitative injection tubes 4 to move.

[0036] This embodiment of the invention describes a quantitative wet filling unit for combined fireworks inner tubes. It utilizes a wet filling method. During the production process, several different powders are pre-mixed with water or resin in a specific order and ratio to form a liquid. This liquid exhibits a paste-like or slurry-like consistency and possesses excellent fluidity. Compared to traditional dry production methods, this wet production method significantly reduces the risk of flammability and explosion. In dry production, powder in a dry state is susceptible to accidental explosions due to factors such as friction and static electricity, while liquid powder is much more stable, significantly improving the safety of the production process.

[0037] Furthermore, wet production is virtually dust-free. During dry production, dry powders tend to become airborne, causing serious pollution to the production environment and potentially damaging the health of production personnel. Using a wet filling unit effectively reduces pollution and creates a cleaner, healthier working environment for production personnel.

[0038] In addition, the filling unit reduces two or more links in the production of dry fireworks charges to one link. In traditional dry production, each powder is filled by a separate device, and the production line is generally long and occupies a large area. The wet filling unit combines multiple single dosing syringes 4 together to complete the suction and injection of the liquid medicine at one time, greatly reducing the length of the production line and the floor area occupied by the production line. This not only reduces the equipment investment cost, but also makes the production management more convenient and efficient.

[0039] During operation, the action driving device drives the single dosing syringe 4 to act, so that the single dosing syringe 4 can accurately suck the liquid medicine. After the single dosing syringe 4 sucks the appropriate amount of liquid medicine, the liquid medicine is injected into the fireworks inner tube under the action of the action driving device, thereby completing the filling operation. The whole process is efficient and accurate, ensuring that each fireworks inner tube can be accurately filled with the correct amount of medicine.

[0040] Further, the single dosing syringe 4 is provided with a piston body 5, and the action driving device comprises a gas cavity 6, a gas pipe interface 7, a gas pipe and a gas control member. The gas cavity 6 is connected to one end of the combined dosing syringe 2, and is used to inflate or deflate the single dosing syringe 4, thereby controlling the movement of the piston body 5 in the single dosing syringe 4. The gas pipe interface 7 is connected to the gas cavity 6, specifically by threads. The gas pipe is connected to the gas pipe interface 7, and the gas control member is connected to the gas pipe.

[0041] The action driving device is composed of a gas cavity 6, a gas pipe interface 7, a gas pipe and a gas control member. The gas cavity 6 is connected to one end of the combined dosing syringe 2, and its main function is to inflate or deflate the single dosing syringe 4. When the gas cavity 6 is deflated, a negative pressure is generated, causing the piston body 5 to rise in the single dosing syringe 4. In this process, the external liquid medicine is sucked into the single dosing syringe 4, realizing the suction operation of the liquid medicine. When the gas cavity 6 is inflated, the positive pressure pushes the piston body 5 to descend, pushing the sucked liquid medicine out of the single dosing syringe 4, realizing the injection of the liquid medicine.

[0042] The gas pipe interface 7 serves to connect the gas cavity 6, ensuring that the gas can smoothly enter or exit the gas cavity 6. The gas pipe further connects the gas pipe interface 7, providing a channel for the transmission of gas. The gas control member is connected to the gas pipe, through which the flow direction and flow rate of the gas can be accurately controlled, thereby realizing precise control of the inflation or deflation action of the gas cavity 6.

[0043] Through the synergy of the above components, the extraction and injection of the liquid medicine can be efficiently and accurately realized, and then the filling action process is completed. This way has significant advantages. On the one hand, the movement of the piston body 5 is controlled by the pressure of the gas, which is simple and reliable, and can ensure the accuracy of the medicine amount filled each time. On the other hand, the whole process is highly automated, greatly improving the production efficiency and reducing the errors and risks brought by manual operation. At the same time, this design also makes the structure of the filling unit more compact, facilitating installation and maintenance, and provides a more stable and efficient solution for the production of combined fireworks.

[0044] Regarding the setting of the action driving device, it can also be set in a way pushed by a gas cylinder or an electric push rod, and the control of each single quantitative injection cylinder 4 is realized by the push and pull of the gas cylinder or the electric push rod. In this setting state, the piston body 5 should be provided with a piston rod connected to the gas cylinder or the electric push rod to realize the action control.

[0045] The gas control component can be specifically set as a gas pump and a control valve matched therewith.

[0046] Further, the single quantitative injection cylinder 4 is provided with a piston limiting component for limiting the upward movement stroke of the piston body 5, so as to avoid the movement of the piston body 5 beyond the internal range of the single quantitative injection cylinder 4.

[0047] The piston limiting component can be set as a ring-shaped, block-shaped or rod-shaped component in the single quantitative injection cylinder 4, as long as it can limit the piston body 5.

[0048] In the embodiment, the preferred setting mode is that the piston limiting component includes a piston stop sheet 8, which is arranged between the gas cavity 6 and the combined quantitative injection cylinder 2, and a plurality of through holes 9 corresponding to the single quantitative injection cylinder 4 are arranged on the piston stop sheet 8 for the gas to pass through. When the liquid medicine extraction and injection operation is performed, the piston body 5 moves in the single quantitative injection cylinder 4. In order to avoid the movement of the piston body 5 beyond the internal range of the single quantitative injection cylinder 4, a plurality of through holes 9 corresponding to the single quantitative injection cylinder 4 are arranged on the piston stop sheet 8 for the gas to pass through, which can effectively limit the upward movement stroke of the piston body 5 without affecting the normal circulation of the gas

[0049] Further, the piston limiting member further comprises a hollow cylinder 10, which is arranged in the single quantitative injection cylinder 4 and located between the piston body 5 and the piston stopper 8. The diameter of the through hole 9 is smaller than the outer diameter of the hollow cylinder 10, so as to avoid the passing of the hollow cylinder 10. In the working process, the hollow cylinder 10 moves with the piston body 5. Since the diameter of the hollow cylinder 10 is smaller than the inner diameter of the single quantitative injection cylinder 4, it can move smoothly in the injection cylinder. At the same time, the diameter of the through hole 9 in the piston stopper 8 is smaller than the outer diameter of the hollow cylinder 10, which effectively avoids the passing of the hollow cylinder 10 into the air cavity 6 through the through hole 9. Through the arrangement of the hollow cylinder 10, the stroke of the piston body 5 is further accurately controlled. When the piston body 5 moves upward, it drives the hollow cylinder 10 to move together. When the hollow cylinder 10 touches the piston stopper 8, it cannot continue to move upward, so that the stroke of the piston body 5 can be controlled within a certain height range, ensuring the accuracy and stability of the liquid extraction and injection, and improving the precision and reliability of the filling operation.

[0050] Further, the air cavity 6, the piston stopper 8 and the piston stopper 8 and the combined quantitative injection cylinder 2 are respectively provided with sealing gaskets 11, so as to realize the sealing of each structure and effectively ensure the air tightness of the inside of the filling unit.

[0051] Further, the bottom end of the single quantitative injection cylinder 4 is provided with an injection nozzle 12, which can be installed at the bottom end of the single quantitative injection cylinder 4 in a threaded connection or interference fit manner.

[0052] In the embodiment, the air cavity 6, the sealing gasket 11, the combined quantitative injection cylinder 2 and the piston stopper 8 are fixedly connected by bolts, and the combined quantitative injection cylinder is provided with a threaded hole 13 for the bolts to pass through, so that the air tightness of the inside of the combined fireworks inner tube filling unit 1 is ensured.

[0053] Embodiment two:

[0054] As shown in Figures 1 to 8 A combined fireworks inner tube quantitative wet filling device, which comprises the combined fireworks inner tube filling unit 1 of embodiment one, and further comprises a moving frame, a wet type medicine storage box 13 and a transverse conveying device 26. The transverse conveying device 26 can be specifically provided as a conveying belt or a roller conveyor. The moving frame comprises a longitudinal motion assembly and a transverse motion assembly. The combined fireworks inner tube filling unit 1 is arranged on the longitudinal motion assembly and moves up and down by the longitudinal motion assembly. The longitudinal motion assembly is arranged on the transverse motion assembly and moves transversely by the transverse motion assembly. The wet type medicine storage box 13 is arranged on one side of the longitudinal motion assembly. The transverse conveying device 26 is arranged below the combined fireworks inner tube filling unit 1.

[0055] In the working process, the wet storage tank 13 is placed in the mixed fireworks agent, a similar paste or slurry flow material, referred to as liquid. First, the transverse motion assembly drives the combined fireworks inner cylinder quantitative filling unit to move to the right to the upper of the wet storage tank 13, and then the longitudinal motion assembly drives it to move downward, so that the injection nozzle 12 below the filling unit is immersed below the liquid level. At this time, the external gas control component removes the air in the filling unit through the air pipe interface 7 connected by the air pipe, forming a negative pressure environment. Under the action of negative pressure, the piston body 5 moves upward, and the injection nozzle 12 smoothly sucks the liquid into the single quantitative injection cylinder 4, completing the liquid suction link.

[0056] Then, the combined fireworks inner cylinder quantitative filling unit is driven upward by the longitudinal action assembly, so that the lower injection nozzle 12 is a certain height away from the liquid level, and then it is driven leftward by the transverse action assembly and moves to the upper of the combined fireworks inner cylinder 27. Subsequently, the longitudinal motion assembly drives the filling unit to move downward again, so that the lower injection nozzle 12 enters the corresponding fireworks inner cylinder port of the combined fireworks inner cylinder 27. At this time, the external gas control device blows gas into the filling unit through the air pipe interface 7 connected by the air pipe, so that the internal gas pressure increases. Under the action of gas pressure, the piston body 5 moves downward, and the liquid in the single quantitative injection cylinder 4 is injected into the corresponding fireworks inner cylinder 26 of the combined fireworks inner cylinder 27 through the injection nozzle 12, completing the liquid filling link.

[0057] This filling device has remarkable effects. First of all, the use of wet filling greatly reduces the risk of flammability and explosiveness. The state of fireworks agent liquid is more stable than that of dry powder, and is not easy to cause accidental explosion due to friction, static electricity and other factors, which ensures the safety of production. Secondly, there is basically no dust pollution, which reduces the harm to the environment and the health of workers. Thirdly, through precise action control, high-efficiency and accurate liquid filling is realized, which improves the production efficiency and product quality. At the same time, the design of the action frame makes the filling unit move flexibly between different positions, which adapts to the needs of the production process. The transverse conveying device 26 provides convenience for the conveying of fireworks inner cylinder, ensuring the continuity of production.

[0058] Specifically, the transverse movement assembly and the longitudinal movement assembly can be implemented in various ways, such as through longitudinal and transverse control of a mechanical hand. In this embodiment, the longitudinal movement assembly includes a vertical column 14, a longitudinal cylinder 15, a longitudinal guide rail 16, a longitudinal sliding block 17, and a connecting block 18. The longitudinal cylinder 15 and the longitudinal guide rail 16 are arranged on the vertical column 14, the longitudinal sliding block 17 is arranged on the longitudinal guide rail 16, and the connecting block 18 is arranged on the longitudinal sliding block 17. The longitudinal cylinder 15 is connected to the connecting block 18 and is used to drive the connecting block 18 to slide along the longitudinal guide rail 16. The combined firework inner tube filling unit 1 is arranged on the connecting block 18. The transverse movement assembly includes a transverse column 19, a transverse cylinder 20, a transverse guide rail 21, and a transverse sliding block 22. The transverse cylinder 20 and the transverse guide rail 21 are arranged on the transverse column 19, and the transverse sliding block 22 is arranged on the transverse guide rail 21. The transverse cylinder 20 is connected to the transverse sliding block 22 and is used to drive the transverse sliding block 22 to move along the transverse guide rail 21. The vertical column 14 is connected to the transverse sliding block 22.

[0059] During operation, when it is necessary to move the filling unit to a specific height, the longitudinal cylinder 15 starts to work. The piston rod of the cylinder extends or retracts, driving the connecting block 18 to slide up or down on the longitudinal guide rail 16. The sliding of the longitudinal sliding block 17 on the longitudinal guide rail 16 plays a guiding and stabilizing role, ensuring the accuracy of the movement trajectory of the connecting block 18. In this way, the filling unit can be accurately moved below the liquid level of the wet-type chemical storage tank 13 for chemical liquid suction or above the combined firework inner tube for chemical liquid injection.

[0060] The transverse movement assembly includes a transverse column 19, a transverse cylinder 20, a transverse guide rail 21, and a transverse sliding block 22. The transverse cylinder 20 and the transverse guide rail 21 are arranged on the transverse column 19, and the transverse sliding block 22 is arranged on the transverse guide rail 21. The transverse cylinder 20 is connected to the transverse sliding block 22 and is used to drive the transverse sliding block 22 to move along the transverse guide rail 21. The vertical column 14 is connected to the transverse sliding block 22, so that when the transverse sliding block 22 moves, the entire longitudinal movement assembly and the filling unit installed thereon will also move transversely.

[0061] When it is necessary to move the filling unit from the wet-type chemical storage tank 13 to above the combined firework inner tube, the transverse cylinder 20 starts to work. The piston rod of the cylinder pushes the transverse sliding block 22 to slide on the transverse guide rail 21, driving the vertical column 14 and the longitudinal movement assembly and the filling unit connected to the vertical column 14 to move transversely. The cooperation of the transverse guide rail 21 and the transverse sliding block 22 ensures the stability and accuracy of the movement. Through the action of the transverse movement assembly, the filling unit can quickly and accurately switch between different working positions, improving the production efficiency

[0062] Further, the combined firework inner tube filling unit 1 further comprises a medicine receiving tank 23, which is arranged between the wet medicine storage tank 13 and the longitudinal motion assembly, and is used for receiving the medicine liquid dropped from the combined firework inner tube filling unit 1. The medicine receiving tank 23 is filled with clean water. During the movement of the combined firework inner tube filling unit 1, the medicine liquid remaining outside the injection nozzle 12 can drop into the medicine receiving tank 23, so as to avoid the waste of the medicine liquid and the pollution to the environment.

[0063] In the present fact example, the wet medicine storage tank 13 and the medicine receiving tank 23 are respectively supported by a first support 24 and a second support 25. The first support 24 and the second support 25 can be two or more fixed rods, and can be installed on an external support or a wall surface.

[0064] The above description of the embodiments is for facilitating the understanding and use of the present application by those skilled in the art. Those skilled in the art can easily make various modifications to the embodiments, and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present application is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art based on the disclosure of the present application without departing from the scope of the present application should be within the protection scope of the present application.

Claims

1. A quantitative wet filling unit for combined fireworks inner tubes, characterized in that: It includes a combined quantitative injection cylinder and an action driving device. The combined quantitative injection cylinder is provided with multiple single quantitative injection cylinders for sucking and injecting fireworks liquid. The multiple single quantitative injection cylinders are arranged according to the arrangement method of the combined fireworks inner cylinder. The action driving device is used to drive the multiple single quantitative injection cylinders to move; a piston body is provided in the single quantitative injection cylinder, and the action driving device includes an air cavity, an air pipe interface, an air pipe and a gas control component. The air cavity is connected to one end of the combined quantitative injection cylinder and is used to inflate or exhaust air into the single quantitative injection cylinder, thereby controlling the movement of the piston body in the single quantitative injection cylinder. The air pipe interface is connected to the air cavity, the air pipe is connected to the air pipe interface, and the gas control component is connected to the air pipe.

2. A quantitative wet filling unit for combined fireworks inner tubes according to claim 1, characterized in that: The single quantitative injection cylinder is provided with a piston limiting component for limiting the upward movement stroke of the piston body.

3. A quantitative wet filling unit for combined fireworks inner tubes according to claim 2, characterized in that: The piston limiting component includes a piston blocking piece, which is arranged between the air cavity and the combined quantitative injection cylinder. The piston blocking piece is provided with a plurality of through holes arranged in a one-to-one correspondence with the plurality of single quantitative injection cylinders.

4. A quantitative wet filling unit for combined firework inner tubes according to claim 3, characterized in that: The piston limiting component further includes a hollow cylinder, which is provided in the single quantitative injection cylinder and located between the piston body and the piston blocking piece. The aperture of the through hole is smaller than the outer diameter of the hollow cylinder.

5. The quantitative wet filling unit for combined firework inner tube according to claim 3, characterized in that: Sealing gaskets are respectively provided between the air cavity and the piston baffle, and between the piston baffle and the combined quantitative injection cylinder.

6. A quantitative wet filling unit for combined firework inner tubes according to any one of claims 1 to 5, characterized in that: The bottom end of the single quantitative injection cylinder is provided with an injection nozzle.

7. A quantitative wet filling device for the inner tube of a combined firework, characterized in that: A combination firework inner tube filling unit comprising the combination firework inner tube filling unit according to any one of claims 1 to 6, further comprising an action frame, a wet medicine storage box and a transverse conveying device, wherein the action frame comprises a longitudinal motion component and a transverse motion component, the combination firework inner tube filling unit is arranged on the longitudinal motion component and is driven to move up and down by the longitudinal motion component, the longitudinal motion component is arranged on the transverse motion component and is moved transversely by the transverse motion component, the wet medicine storage box is arranged on one side of the longitudinal motion component, and the transverse conveying device is arranged below the combination firework inner tube filling unit.

8. A quantitative wet filling device for combined fireworks inner tubes according to claim 7, characterized in that: The longitudinal motion component includes a column, a longitudinal cylinder, a longitudinal guide rail, a longitudinal slider and a connecting block. The longitudinal cylinder and the longitudinal guide rail are arranged on the column, the longitudinal slider is arranged on the longitudinal guide rail, and the connecting block is arranged on the longitudinal slider. The longitudinal cylinder is connected to the connecting block to drive the connecting block to slide along the longitudinal guide rail. The combined fireworks inner tube filling unit is arranged on the connecting block. The transverse motion component includes a transverse column, a transverse cylinder, a transverse guide rail and a transverse slider. The transverse cylinder and the transverse guide rail are arranged on the transverse column, the transverse slider is arranged on the transverse guide rail, the transverse cylinder is connected to the transverse slider to drive the transverse slider to move along the transverse guide rail, and the column is connected to the transverse slider.

9. The quantitative wet filling device for the combined firework inner tube according to claim 7, characterized in that: It also includes a medicine water trough, which is arranged between the wet medicine storage box and the longitudinal motion component and is used to receive the medicine liquid dripping from the combined firework inner tube filling unit.

Images