Material mixing device of firework inner cylinder and firework inner cylinder production line

Abstract

The utility model provides a firework inner cylinder material mixing device and a firework inner cylinder production line, and relates to the technical field of firework inner cylinder production equipment, the firework inner cylinder material mixing device comprises a fixed support, a rotating seat and a plurality of material mixing units; the rotating seat can rotate in a first rotating direction; the plurality of material mixing units are distributed on a plurality of positions of the rotating seat along the rotating circumferential direction; and the mixing unit can rotate relative to the rotating seat in a second rotating direction, and an inner barrel fixing seat for fixing a firework inner barrel is arranged on the mixing unit. During working, the material mixing unit can rotate along with the rotating seat in the first rotating direction, the material mixing unit further rotates relative to the rotating seat in the second rotating direction, and raw materials in firework inner barrels on the material mixing unit can be efficiently mixed through superposition of rotating motion in the two directions.

Description

Technical Field

[0001] The present application relates to the technical field of fireworks inner cylinder production equipment, and particularly relates to a material mixing device for fireworks inner cylinders and a fireworks inner cylinder production line. Background Art

[0002] The fireworks inner cylinder is also called a fireworks effect cylinder, which contains bright beads, gunpowder, fillers and solid primers. Both bright beads and gunpowder are flammable and explosive items; among them, gunpowder is composed of an oxidizer and a reducing agent. At present, most of the production lines for fireworks inner cylinders load the raw materials after mixing, which poses a great safety hazard.

[0003] For this reason, Chinese Patent CN201911153856.1 provides a fireworks inner cylinder loading device and its process. In the technical solution provided by this patent document, the oxidizer and the reducing agent are loaded separately to improve the safety during the production process. After the oxidizer and the reducing agent are respectively loaded into the inner cylinder, they need to be fully mixed inside the inner cylinder. However, there is still a lack of equipment on the market for efficiently mixing the internal raw materials in the fireworks inner cylinder. Summary of the Utility Model

[0004] The technical problem to be solved by the present application is to propose a material mixing device for fireworks inner cylinders and a fireworks inner cylinder production line in view of the above deficiencies of the prior art.

[0005] A material mixing device for fireworks inner cylinders includes: a fixed support, a rotating seat, and a plurality of mixing units; the rotating seat can rotate in a first rotation direction; the plurality of mixing units are distributed at a plurality of positions on the rotating seat along the rotation circumference; the mixing unit can rotate relative to the rotating seat in a second rotation direction, and an inner cylinder fixing seat for fixing the fireworks inner cylinder is arranged thereon.

[0006] Optionally, the first rotation direction is the horizontal direction, and the second rotation direction is the vertical direction.

[0007] Optionally, the material mixing device has a first driving source and a second driving source;

[0008] The first driving source is used to drive the rotating seat to rotate in the first rotation direction; the second driving source is used to drive the mixing unit to rotate relative to the rotating seat in the second rotation direction.

[0009] Optionally, the material mixing device has a third driving source, and the third driving source is used to drive the rotating seat and the mixing unit simultaneously, so that the rotating seat rotates in the first rotation direction, and the mixing unit rotates relative to the rotating seat in the second rotation direction.

[0010] Optionally, a first bevel gear is fixed on the fixed bracket, and the first bevel gear is horizontally arranged;

[0011] A rotating shaft connected to the inner cylinder fixing seat is provided on the mixing unit, and a second bevel gear is installed on the rotating shaft; the second bevel gears of the plurality of mixing units are meshed with the first bevel gear at a plurality of different circumferential positions; when the mixing unit rotates with the rotating seat in a first rotation direction, the second bevel gear meshes and rotates on the first bevel gear, so that the mixing unit rotates relative to the rotating seat in a second rotation direction at the same time.

[0012] Optionally, the inner cylinder fixing seat includes:

[0013] A fixed base, connected to the rotating shaft;

[0014] A pressing plate, arranged on one side of the fixed base;

[0015] A driving element, used to drive the pressing plate to act so that the pressing plate presses the inner cylinder located on the fixed base.

[0016] Optionally, the driving element is a cylinder, and an air inlet passage for the cylinder is machined in the rotating shaft, and the air inlet passage is connected to an air slip ring;

[0017] The inner cylinder fixing seat further includes an elastic element, and the elastic element is used to drive the pressing plate away from the fixed base to release the inner cylinder.

[0018] Optionally, for any mixing unit, a first bearing seat and a second bearing seat for installing the rotating shaft are arranged on the rotating seat; the second bevel gear is located between the first bearing seat and the second bearing seat;

[0019] The first bevel gear is located below the rotating seat, and the first bearing seat and the second bearing seat are located above the rotating seat; the rotating seat is provided with a notch at the position of the second bevel gear, and the second bevel gear passes downward through the notch and meshes with the first bevel gear.

[0020] On the other hand, the present application also provides a production line for fireworks inner cylinders, and the production line for fireworks inner cylinders includes:

[0021] The above-mentioned material mixing device for fireworks inner cylinders; the material mixing device is used to mix various raw materials in the fireworks inner cylinders;

[0022] A plurality of inner cylinder filling devices, used to respectively fill a variety of different raw materials into the fireworks inner cylinders;

[0023] Wherein, a feeding station and a discharging station are arranged around the material mixing device; the feeding station and the discharging station are distributed at different positions around the rotating seat.

[0024] Optionally, the feeding station and the discharging station can be simultaneously aligned with different mixing units to achieve simultaneous feeding and discharging.

[0025] The material mixing device provided by the present application is used for efficiently mixing the internal raw materials in the inner cylinder of fireworks, and has the following technical effects: First, the mixing units are arranged on the rotating seat. During operation, the mixing units can rotate with the rotating seat in a first rotation direction, and moreover, the mixing units also rotate relative to the rotating seat in a second rotation direction. The superposition of the rotational movements in the two directions can enable the raw materials in the inner cylinder of fireworks thereon to be efficiently mixed. Second, multiple mixing units are distributed at multiple positions on the rotating seat along the circumferential direction of rotation. The raw materials in the inner cylinders of the multiple mixing units can be mixed simultaneously, and moreover, it is convenient to arrange independent feeding stations and discharging stations around the rotating seat. The feeding and discharging are arranged separately, and simultaneous feeding and discharging can be achieved, improving the working efficiency. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the material mixing device for the inner cylinder of fireworks in an embodiment of the present application.

[0027] Figure 2 is another schematic structural diagram of the material mixing device for the inner cylinder of fireworks in an embodiment of the present application.

[0028] Figure 3 is another schematic structural diagram of the material mixing device for the inner cylinder of fireworks in an embodiment of the present application.

[0029] Figure 4 is another schematic structural diagram of the material mixing device for the inner cylinder of fireworks in an embodiment of the present application.

[0030] Figure 5 is a schematic structural diagram of the mixing unit in an embodiment of the present application.

[0031] Figure 6 is another schematic structural diagram of the mixing unit in an embodiment of the present application.

[0032] Figure 7 is a schematic structural diagram of the production line of the inner cylinder of fireworks in an embodiment of the present application.

[0033] Reference Signs:

[0034] The first material loading device 100, the second material loading device 200, the third material loading device 300, the fourth material loading device 400, the fifth material loading device 500, and the material mixing device 600; the fixed bracket 10, the first bevel gear 11, the rotating seat 20, the first bearing seat 21, the second bearing seat 22, the notch 23, the mixing unit 30, the inner cylinder fixing seat 31, the rotating shaft 32, the air intake passage 321, the second bevel gear 33, the fixed base 311, the pressing plate 312, the driving element 313, and the air slip ring 40. Detailed implementation manners

[0035] The following are specific embodiments of the present application and in combination with the accompanying drawings, the technical solutions of the present application are further described, but the present application is not limited to these embodiments. In the following description, providing specific details such as specific configurations and components is only to help comprehensively understand the embodiments of the present application. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described here without departing from the scope and spirit of the present application. In addition, for clarity and conciseness, the description of known functions and structures is omitted.

[0036] It should be noted that, without conflict, the implementation manners and features in the implementation manners of the present application can be combined with each other.

[0037] The present application provides a material mixing device for a fireworks inner cylinder, and the material mixing device is used to mix various raw materials in the fireworks inner cylinder. In a specific technical solution, after filling an oxidant, a reducing agent, and bright beads into the fireworks inner cylinder respectively, the material mixing device is used to mix the three raw materials filled in the fireworks inner cylinder.

[0038] Refer to Figure 1 , the material mixing device of the fireworks inner cylinder includes a fixed bracket 10, a rotating seat 20, and a plurality of mixing units 30. Among them, the rotating seat 20 can rotate in a first rotation direction; the plurality of mixing units 30 are distributed at a plurality of positions on the rotating seat 20 along the rotation circumference; the mixing unit 30 can rotate relative to the rotating seat 20 in a second rotation direction, and an inner cylinder fixing seat 31 for fixing the fireworks inner cylinder is provided thereon. In a specific implementation manner, the first rotation direction is the horizontal direction, and the second rotation direction is the vertical direction.

[0039] In a specific implementation manner, the fireworks inner cylinder production line includes a plurality of inner cylinder filling devices. After filling the inner cylinder with an oxidant, a reducing agent, and bright beads, it enters the material mixing device. The material mixing device mixes the three raw materials filled previously, namely the oxidant, the reducing agent, and the bright beads.

[0040] Specifically, when the material mixing device of the inner tube of the fireworks is working, the rotating seat 20 rotates in the first rotation direction, and the mixing unit 30 rotates relative to the rotating seat 20 in the second rotation direction. Since the mixing unit 30 is arranged on the rotating seat 20, the mixing unit 30 can rotate with the rotating seat 20 in the first rotation direction, and moreover, the mixing unit 30 also rotates relative to the rotating seat 30 in the second rotation direction. The superposition of the rotational movements in two directions can enable the raw materials in the inner tube of the fireworks thereon to be efficiently mixed.

[0041] Furthermore, an inner tube fixing seat 31 for fixing the inner tube of the fireworks is provided on the mixing unit 30, and a plurality of mixing units 30 are arranged along the circumferential direction of the rotation of the rotating seat 20. Each mixing unit 30 can place the inner tube of the fireworks. When the material mixing device is working, the rotating seat 20 rotates, and each mixing unit 30 thereon acts simultaneously to efficiently mix the raw materials in the inner tubes of the fireworks on each mixing unit 30.

[0042] In addition, a plurality of mixing units 30 are distributed at multiple positions on the rotating seat 20 along the circumferential direction of rotation, which is convenient for arranging independent feeding stations and discharging stations around the rotating seat 20. The feeding and discharging are arranged separately, and simultaneous feeding and discharging can be achieved.

[0043] In the embodiment of the present application, the number of mixing units 30 that the material mixing device can include can be 2 - 16, that is, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16. In a specific embodiment, referring to Figure 2 , four mixing units 30 are arranged along the circumferential direction of the rotation of the rotating seat 20, and the adjacent mixing units 30 are 90° apart. Also referring to Figure 7 , the feeding station and the discharging station are 90° apart. When the rotating seat 20 stops rotating, the feeding station and the discharging station can be aligned with two adjacent mixing units 30 simultaneously. At the feeding station, the corresponding mixing unit is fed, and at the discharging station, the corresponding mixing unit discharges. As the rotating seat 20 rotates, the mixing unit after being fed at the feeding station continuously mixes the raw materials in the inner tube thereon until it discharges at the discharging station.

[0044] In an embodiment of the present application, the material mixing device has a first driving source and a second driving source; wherein, the first driving source is used to drive the rotating seat 20 to rotate in the first rotation direction; the second driving source is used to drive the mixing unit 30 to rotate relative to the rotating seat 20 in the second rotation direction. In this setting, the rotation of the mixing unit 30 relative to the rotating seat 20 in the second rotation direction is independent of the rotation of the rotating seat 20 in the first rotation direction. Further, the first driving source and the second driving source are motors.

[0045] In an embodiment of the present application, the material mixing device has a third driving source, which is used to drive the rotating base 20 and the mixing unit 30 simultaneously, so that the rotating base 20 rotates in a first rotation direction, and the mixing unit 30 rotates relative to the rotating base 20 in a second rotation direction. Further, the third driving source is a motor.

[0046] Reference Figures 1-4 , in an embodiment of the present application, a first bevel gear 11 is fixed on the fixed bracket 10, and the first bevel gear 11 is horizontally arranged. A rotating shaft 32 connected to the inner cylinder fixing seat 31 is provided on the mixing unit 30, and a second bevel gear 33 is installed on the rotating shaft 32; the second bevel gears 33 of multiple mixing units 30 are meshed with the first bevel gear 11 at multiple different circumferential positions; when the mixing unit 30 rotates with the rotating base 20 in the first rotation direction, the second bevel gear 33 meshes and rotates on the first bevel gear 11, so that the mixing unit 30 rotates relative to the rotating base 20 in the second rotation direction at the same time.

[0047] Specifically, the first bevel gear 11 is fixed on the fixed bracket 10 and remains stationary. The second bevel gear 33 is arranged on the rotating shaft 32 of the mixing unit 30, and the second bevel gears 33 of each mixing unit 30 are meshed with the first bevel gear 11. Therefore, when the mixing unit 30 rotates with the rotating base 20 in the first rotation direction, due to the meshing relationship between the second bevel gear 33 and the first bevel gear 11, the second bevel gear 33 rotates on the first bevel gear 11, thereby driving the mixing unit 30 to rotate relative to the rotating base 20 in the second rotation direction. Based on the above transmission setting, the third driving source can drive the rotating base 20 to rotate in the first rotation direction, and the mixing unit 30 rotates relative to the rotating base 20 in the second rotation direction, and the rotation of the mixing unit 30 relative to the rotating base 20 in the second rotation direction and the rotation of the rotating base 20 in the first rotation direction maintain a fixed speed ratio.

[0048] Reference Figure 5 and Figure 6 , in an embodiment of the present application, the inner cylinder fixing seat 31 includes a fixed base 311, a pressing plate 312, and a driving element 313. Among them, the fixed base 311 is connected to the rotating shaft 32, the pressing plate 312 is arranged on one side of the fixed base 311, and the driving element 313 is used to drive the pressing plate 312 to act so that the pressing plate 312 presses the inner cylinder W located on the fixed base 311. Specifically, when the inner cylinder is pushed onto the fixed base 311, the driving element 313 drives the pressing plate 312 to act so that the pressing plate 312 approaches the fixed base 311 to press the inner cylinder W thereon.

[0049] Further, the driving element is a cylinder, and an air inlet passage 321 for the cylinder is machined in the rotating shaft 32, and the air inlet passage 321 is connected to an air slip ring 40. The inner cylinder fixing seat 31 further includes an elastic element for driving the pressing plate 312 away from the fixed base 311 to release the inner cylinder.

[0050] Specifically, when the driving element is a cylinder, an air inlet passage 321 for the cylinder is machined in the rotating shaft 32, and an external air source supplies air to the cylinder through the air inlet passage 321 on the rotating shaft 32. Moreover, the air inlet passages 321 on each rotating shaft 32 are all connected to the air slip ring 40, and the air slip ring 40 can supply air during rotation, thus meeting the air supply requirements of the mixing unit 30. It should be noted that part of the air slip ring forms a stable gas passage within the rotary joint through special sealing technology, enabling the gas to flow between the rotating part and the fixed part without leakage. In addition, since the mixing unit 30 needs to rotate in two directions and it is difficult to arrange the intake pipeline and the exhaust pipeline simultaneously, in the above solution, only the intake pipeline is arranged. When the cylinder intakes air, the cylinder extends to drive the pressing plate 312 to approach the fixed base 311 to clamp the inner cylinder thereon, and at the same time, the elastic element is compressed or elongated. When it is necessary for the inner cylinder to withdraw from the fixed base 311, the driving force of the cylinder is removed, and the elastic element generates a reset deformation to drive the pressing plate 312 away from the fixed base 311 to release the inner cylinder thereon.

[0051] In an embodiment of the present application, for any mixing unit 30, a first bearing seat 21 and a second bearing seat 22 for installing the rotating shaft 32 are arranged on the rotating seat 20; the second bevel gear 33 is located between the first bearing seat 21 and the second bearing seat 22. The first bevel gear 11 is located below the rotating seat 20, and the first bearing seat 21 and the second bearing seat 22 are located above the rotating seat 20; the rotating seat 20 is provided with a notch 23 at the position of the second bevel gear 33, and the second bevel gear 33 passes downward through the notch 23 to mesh with the first bevel gear 11.

[0052] The embodiment of the present application further provides a fireworks inner cylinder production line, which includes the material mixing device provided in the previous part, and a plurality of inner cylinder filling devices for respectively filling a variety of different raw materials into the fireworks inner cylinders. Among them, a feeding station and a discharging station are arranged around the material mixing device; the feeding station and the discharging station are distributed at different positions around the rotating seat 20. Further, the feeding station and the discharging station can be simultaneously aligned with different mixing units 30 to achieve simultaneous feeding and discharging.

[0053] Reference Figure 7, in an embodiment of the present application, the inner tube production line of fireworks includes a first material filling device 100, a second material filling device 200, a third material filling device 300, a fourth material filling device 400, a fifth material filling device 500, and a material mixing device 600. Among them, the first material filling device 100, the second material filling device 200, and the third material filling device 300 are located before the material mixing device 600, and the fourth material filling device 400 and the fifth material filling device 500 are located after the material mixing device 600. The first material filling device 100 is used to fill oxidant into the inner tube of fireworks, the second material filling device 200 is used to fill reducing agent into the inner tube of fireworks, the third material filling device 300 is used to fill flash beads into the inner tube of fireworks, the fourth material filling device 400 is used to fill sawdust into the inner tube of fireworks, and the fifth material filling device 500 is used to fill solid primer into the inner tube of fireworks. Therefore, after the inner tube of fireworks is filled with oxidant, reducing agent, and flash beads, it enters the material mixing device 600 for raw material mixing.

[0054] When the material mixing device of the inner tube of fireworks is working, the rotating seat rotates in a first rotation direction, and the mixing unit rotates relative to the rotating seat in a second rotation direction. Since the mixing unit is arranged on the rotating seat, the mixing unit can rotate with the rotating seat in the first rotation direction, and moreover, the mixing unit also rotates relative to the rotating seat in the second rotation direction. The superposition of the rotational movements in the two directions can enable the raw materials in the inner tube of fireworks thereon to be efficiently mixed. Further, an inner tube fixing seat for fixing the inner tube of fireworks is provided on the mixing unit, and a plurality of mixing units 30 are arranged along the circumferential direction of the rotation of the rotating seat. Each mixing unit can place the inner tube of fireworks. When the material mixing device is working, the rotating seat rotates, and each mixing unit thereon acts simultaneously to efficiently mix the raw materials in the inner tube of fireworks on each mixing unit. In addition, the plurality of mixing units are distributed at multiple positions on the rotating seat along the circumferential direction of rotation, which is convenient for arranging independent feeding stations and discharging stations around the rotating seat. The feeding and discharging are arranged separately, and simultaneous feeding and discharging can be achieved.

[0055] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically 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 this 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 also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] The specific embodiments described herein are merely illustrative of the solutions of this application. Those skilled in the art to which this application pertains may make various modifications or supplements to the described specific embodiments or use similar means to replace them, but will not deviate from the scope defined by the claims of this application.

Claims

1. A material mixing device for a fireworks inner tube, characterized in that, Comprising: A fixed bracket, a rotating base, and a plurality of mixing units; The rotating base is capable of rotating in a first rotation direction; the plurality of mixing units are distributed at a plurality of positions on the rotating base along the circumferential direction of rotation; the mixing unit is capable of rotating relative to the rotating base in a second rotation direction, and an inner cylinder fixing seat for fixing the inner cylinder of the fireworks is provided thereon.

2. The material mixing device for the inner tube of fireworks according to claim 1, characterized in that, The first rotation direction is the horizontal direction, and the second rotation direction is the vertical direction.

3. The material mixing device for the inner tube of fireworks according to any one of claims 1-2, characterized in that, The material mixing device has a first driving source and a second driving source; The first driving source is used to drive the rotating base to rotate in the first rotation direction; the second driving source is used to drive the mixing unit to rotate relative to the rotating base in the second rotation direction.

4. The material mixing device for the inner cylinder of fireworks according to any one of claims 1-2, characterized in that The material mixing device has a third driving source, and the third driving source is used to simultaneously drive the rotating base and the mixing unit, so that the rotating base rotates in the first rotation direction, and the mixing unit rotates relative to the rotating base in the second rotation direction.

5. The material mixing device for the inner cylinder of fireworks according to claim 4, wherein A first bevel gear is fixed on the fixed bracket, and the first bevel gear is horizontally arranged; A rotating shaft connected to the inner cylinder fixing seat is provided on the mixing unit, and a second bevel gear is installed on the rotating shaft; the second bevel gears of the plurality of mixing units are engaged at a plurality of different circumferential positions on the first bevel gear; when the mixing unit rotates with the rotating base in the first rotation direction, the second bevel gear meshes and rotates on the first bevel gear, so that the mixing unit simultaneously rotates relative to the rotating base in the second rotation direction.

6. The material mixing device for the inner tube of fireworks according to claim 5, characterized in that, The inner cylinder fixing seat includes: A fixed base, connected to the rotating shaft; A pressing plate, arranged on one side of the fixed base; A driving element, used to drive the pressing plate to act so that the pressing plate presses the inner cylinder located on the fixed base.

7. The material mixing device for the inner cylinder of fireworks according to claim 6, characterized in that, The driving element is a cylinder, and an air intake passage for the cylinder is machined in the rotating shaft, and the air intake passage is connected to an air slip ring; The inner cylinder fixing seat further includes an elastic element, and the elastic element is used to drive the pressing plate away from the fixed base to release the inner cylinder.

8. The material mixing device for the inner tube of fireworks according to claim 5, characterized in that, For any mixing unit, a first bearing seat and a second bearing seat for installing the rotating shaft are arranged on the rotating base; the second bevel gear is located between the first bearing seat and the second bearing seat; The first bevel gear is located below the rotating base, and the first bearing seat and the second bearing seat are located above the rotating base; the rotating base is provided with a notch at the position of the second bevel gear, and the second bevel gear passes downward through the notch to engage with the first bevel gear.

9. A production line for the inner cylinder of fireworks, characterized in that, The inner cylinder production line of fireworks includes: The material mixing device for the inner cylinder of fireworks according to any one of claims 1-8; the material mixing device is used to mix a variety of raw materials in the inner cylinder of fireworks; A plurality of inner cylinder filling devices, used to respectively fill a variety of different raw materials into the inner cylinder of fireworks; Wherein, a feeding station and a discharging station are arranged around the material mixing device; the feeding station and the discharging station are distributed at different positions around the rotating base.

10. The fireworks inner tube production line according to claim 9, characterized in that, The feeding station and the discharging station can be simultaneously aligned with different mixing units to achieve simultaneous feeding and discharging.

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