Forward and reverse rotation stirring device for mixing pyrotechnic composition

Abstract

The utility model discloses a positive and negative rotation stirring device for mixing pyrotechnic compositions, which comprises a frame, a stirring component for stirring and mixing the pyrotechnic compositions is arranged on the frame, a driving component is mounted in the frame, a transmission component is arranged at an output shaft of the driving component, and the driving component drives the stirring component to work through the transmission component. The stirring assembly comprises a stirring shaft. According to the forward and reverse rotation stirring device for mixing the pyrotechnic composition, materials are stirred in a forward and reverse rotation mode, it can be guaranteed that all kinds of materials are fully mixed, meanwhile, the materials are prevented from being attached to the backs of the stirring blades, and the preparation quality of the pyrotechnic composition is guaranteed; the material barrel can be used in a proper mode according to use requirements, the stirring assembly can also be used for cleaning materials on the wall of the material barrel in the material stirring process, and the situation that part of the materials are attached to the wall of the barrel and cannot be fully mixed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to firecracker preparation device technical field, concretely is a kind of positive and negative rotation stirring device for pyrotechnic composition mixing. BACKGROUND

[0002] Pyrotechnic composition is usually composed of oxidizing agent, combustion-supporting agent, fluxing agent and other additives, and in order to ensure uniform mixing of various materials and glue liquid, the pyrotechnic composition needs to be stirred during preparation. However, manual stirring is inefficient and labor-intensive, so a stirring device is usually installed in the material humidifier to stir and mix the materials. At present, the stirring device is usually driven by a driving device to rotate the stirring shaft and stirring blades. However, the stirring device usually rotates in one direction, which is not convenient for driving the stirring device to rotate in both directions to stir the materials, resulting in poor mixing quality of the materials. In addition, the materials on the stirring blades are severely bonded, and the front part of the blade is clean and free of materials when the blade rotates in one direction, but the back part of the blade is a serious area of material bonding, resulting in low yield and difficult cleaning of the materials. SUMMARY

[0003] The utility model solves the technical problem of overcoming the defects of the prior art and provides a positive and negative rotation stirring device for pyrotechnic composition mixing. The device uses positive and negative rotation to stir the materials, which can ensure that various materials are fully mixed and avoid the bonding of materials on the back part of the stirring blades, thereby ensuring the quality of pyrotechnic composition preparation. In addition, the stirring device is equipped with multiple ways to drive the stirring assembly to rotate, which can be used in the appropriate way according to the use requirements. The stirring assembly can also be used to clean the materials on the barrel wall during the stirring process, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a positive and negative rotation stirring device for pyrotechnic composition mixing, comprising a rack, a stirring assembly for stirring and mixing pyrotechnic composition is arranged on the rack, and a driving assembly is installed in the rack. A transmission assembly is arranged at the output shaft of the driving assembly, and the driving assembly drives the stirring assembly to work through the transmission assembly. The stirring assembly comprises a stirring shaft, and a plurality of stirring blades are installed on the stirring shaft.

[0005] As a preferred technical solution of the utility model, the driving assembly comprises a motor, a speed reducer, a crank shaft and a connecting rod. The speed reducer is installed on the output shaft of the motor. One end of the crank shaft is fixedly connected to the working end of the speed reducer. The other end of the crank shaft is rotatably connected to one end of the connecting rod. The end of the connecting rod away from the crank shaft is the output shaft of the driving assembly.

[0006] As a preferred technical scheme of the utility model, the transmission assembly is a first transmission assembly, the first transmission assembly includes a guide rail, a transmission shaft and a first steering box, a sliding block is slidably installed on the guide rail, a rack is fixedly installed on the side surface of the sliding block, the output shaft of the driving assembly is rotatably installed on the side surface of the rack, a first gear meshing with the rack is installed on one end of the transmission shaft, the other end of the transmission shaft is connected with the input shaft of the first steering box, and the top end of the stirring shaft is connected with the output shaft of the first steering box.

[0007] As a preferred technical scheme of the utility model, the transmission assembly is a second transmission assembly, the second transmission assembly includes a transmission gear plate, a connecting plate is fixed on the side surface of the transmission gear plate, the output shaft of the driving assembly is rotatably connected with the side surface of the connecting plate, a second gear is fixed on the top end of the stirring shaft, and the second gear meshes with the transmission gear plate.

[0008] As a preferred technical scheme of the utility model, the transmission assembly is a third transmission assembly, the third transmission assembly includes a driving wheel, a transmission shaft bearing seat and a second steering box, the output shaft of the driving assembly is rotatably installed on the side surface of the driving wheel, the driving wheel is rotatably installed on the side surface of the transmission shaft bearing seat, a power shaft is rotatably arranged in the transmission shaft bearing seat, a driven wheel meshing with the driving wheel is installed on one end of the power shaft, the other end of the power shaft is connected with the input shaft of the second steering box, and the top end of the stirring shaft is connected with the output shaft of the second steering box.

[0009] As a preferred technical scheme of the utility model, the top of the stirring shaft is provided with a positioning portion, the transmission assembly is connected and driven with the stirring shaft through the positioning portion, the lower part of the side surface of the stirring shaft is provided with a mounting portion, the stirring blades are mounted on the mounting portion of the stirring shaft, and the stirring blades are provided with a plurality of groups from top to bottom.

[0010] As a preferred technical scheme of the utility model, the stirring blade includes a mounting cylinder, a plurality of stirring rods are arranged on the two sides of the mounting cylinder, a scraping piece is arranged on the end of the stirring rod away from the stirring shaft, the scraping piece is replaceable, the mounting cylinder is detachably mounted on the mounting portion of the stirring shaft, the mounting portion of the stirring shaft is in a polygonal structure, and the mounting cylinder is adapted with the mounting portion.

[0011] As a preferred technical scheme of the utility model, the stirring blade is fixedly installed on the mounting portion of the stirring shaft.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The positive and reverse stirring device for mixing pyrotechnic agent provided by the utility model mixes the materials by the positive and reverse mode, can guarantee that all kinds of materials are fully mixed, avoids the adhesion of materials on the back of stirring blades at the same time, guarantees the preparation quality of pyrotechnic agent, in addition, the stirring device is provided with multiple mode driving stirring assembly rotation, can be used according to the use demand by the appropriate mode, and the stirring assembly can also be used for cleaning the materials on the barrel wall during the material stirring process, avoids that part of the materials adhere to the barrel wall and cannot be fully mixed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is Figure 1 It is the structural schematic diagram after the rack is removed;

[0016] Figure 3 It is the structural schematic diagram of the first transmission assembly in the utility model;

[0017] Figure 4 It is the structural schematic diagram of the second transmission assembly in the utility model;

[0018] Figure 5 It is the structural schematic diagram of the third transmission assembly in the utility model;

[0019] Figure 6 It is the structural schematic diagram of the stirring assembly in the utility model;

[0020] Figure 7 It is the structural schematic diagram of the stirring shaft in the stirring assembly;

[0021] Figure 8 It is the structural schematic diagram of the bottom stirring blade in the stirring assembly;

[0022] Figure 9 It is the structural schematic diagram of the middle stirring blade in the stirring assembly;

[0023] Figure 10 It is the structural schematic diagram of the top stirring blade in the stirring assembly;

[0024] Figure 11 It is the structural schematic diagram of the scraper in the stirring assembly.

[0025] In the figure: 1 frame, 2 drive assembly, 21 motor, 22 speed reducer, 23 crank shaft, 24 connecting rod, 3 stirring assembly, 31 stirring shaft, 32 positioning part, 33 mounting part, 34 stirring blade, 341 mounting cylinder, 342 stirring rod, 343 scraper, 4 transmission assembly, 41 first transmission assembly, 411 guide rail, 412 sliding block, 413 rack, 414 first gear, 415 transmission shaft, 416 first steering box, 42 second transmission assembly, 421 transmission gear plate, 422 connecting plate, 423 second gear, 43 third transmission assembly, 431 driving wheel, 432 driven wheel, 433 transmission shaft bearing seat, 434 second steering box. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear and definite, the following will make further explanation on the utility model with reference to the drawings and examples. Example one

[0027] Please refer to Figures 1-3 The embodiment discloses a forward and reverse rotation stirring device for pyrotechnic agent mixing, which comprises a frame 1, a stirring assembly 3 for pyrotechnic agent stirring and mixing is arranged on the frame 1, and a drive assembly 2 is installed in the frame 1, a transmission assembly 4 is arranged at the output shaft of the drive assembly 2, and the drive assembly 2 drives the stirring assembly 3 to work through the transmission assembly 4, and when in use, the drive assembly 2 works, and the stirring assembly 3 stirs and uniformly mixes the materials in the material barrel placed on the frame 1 under the transmission operation of the transmission assembly 4.

[0028] The drive assembly 2 comprises a motor 21, a speed reducer 22, a crank shaft 23 and a connecting rod 24, the speed reducer 22 is installed on the output shaft of the motor 21, one end of the crank shaft 23 is fixedly connected with the working end of the speed reducer 22, the speed reducer 22 is used for increasing the torque of the motor 21, thereby facilitating the use of the drive assembly 2, the other end of the crank shaft 23 is rotatably connected with one end of the connecting rod 24 through a mounting shaft, and the end, away from the crank shaft 23, of the connecting rod 24 is the output shaft of the drive assembly 2, in use, the motor 21 is controlled to work, the speed reducer 22 drives the crank shaft 23 to rotate, and the connecting rod 24 is driven by the crank shaft 23 to drive the stirring assembly 3 to rotate.

[0029] The transmission assembly 4 is a first transmission assembly 41, the first transmission assembly 41 comprises a guide rail 411, a transmission shaft 415 and a first steering box 416, the guide rail 411 is installed on the frame 1, the transmission shaft 415 is rotatably installed on the frame 1 through a bearing seat, a sliding block 412 is slidably installed on the guide rail 411, a rack 413 is fixedly installed on the side surface of the sliding block 412, the output shaft of the drive assembly 2 is rotatably installed on the side surface of the rack 413 through a mounting shaft, the transmission shaft 415 is provided with a first gear 414 meshing with the rack 413 at one end, the other end of the transmission shaft 415 is connected with the input shaft of the first steering box 416, and the top end of the stirring shaft 31 is connected with the output shaft of the first steering box 416.

[0030] In the embodiment, the driving assembly 2 drives the rack 413 to move up and down through the connecting rod 24, the sliding block 412 slides on the guide rail 411 when the rack 413 moves up and down, and the sliding block 412 plays a positioning and guiding role on the movement of the rack 413. The first gear 414 engaged with the rack 413 is driven to rotate in the movement process of the rack 413, so that the transmission shaft 415 is driven to rotate. The transmission shaft 415 drives the stirring assembly 3 to work through the first steering box 416, facilitates the use of the stirring device, improves the material mixing quality and material mixing efficiency through the forward and reverse rotation of the stirring assembly 3, and reduces the adhesion of the material on the stirring blade.

[0031] In addition, referring to Figure 6 , the stirring assembly 3 in the embodiment includes a stirring shaft 31, and a plurality of stirring blades 34 are installed on the stirring shaft 31. In the embodiment, the first steering box 416 drives the stirring shaft 31 to rotate when it works, so that the stirring blades 34 installed on the stirring shaft 31 are rotated to stir the material. Embodiment two

[0032] As shown in Figure 4 , the embodiment discloses a forward and reverse stirring device for mixing pyrotechnic charges. The structure of the embodiment is substantially the same as that of embodiment one, except that the transmission assembly 4 in the embodiment is a second transmission assembly 42. The second transmission assembly 42 includes a transmission gear plate 421, which is preferably a fan-shaped structure. The outer side of the transmission gear plate 421 is uniformly provided with a gear slot, and the center of the transmission gear plate 421 is rotatably installed on the rack 1 through a mounting shaft. The side of the transmission gear plate 421 is fixedly provided with a connecting plate 422. The output shaft of the driving assembly 2 is rotatably connected to the side of the connecting plate 422 through a positioning shaft. The top end of the stirring shaft 31 is fixedly provided with a second gear 423, which is engaged with the transmission gear plate 421. When the driving assembly 2 works, the transmission gear plate 421 is driven to rotate forward and backward by the connecting rod 24. The second gear 423 engaged with the transmission gear plate 421 is driven to rotate by the transmission gear plate 421. When the second gear 423 rotates, the stirring shaft 31 is driven to rotate, so that the stirring blades 34 installed on the stirring shaft 31 are rotated to stir the material. The forward and reverse rotation of the stirring assembly 3 improves the material mixing quality and material mixing efficiency, and reduces the adhesion of the material on the stirring blade. In this embodiment, the driving assembly 2 and the transmission assembly 4 are both arranged horizontally. Embodiment three

[0033] As shown in Figure 5As shown, this embodiment discloses a forward and reverse reversible stirring device for mixing pyrotechnic agents. Its structure is roughly the same as that of Embodiment 1, except that in this embodiment, the transmission component 4 is a third transmission component 43. The third transmission component 43 includes a drive wheel 431, a transmission shaft bearing seat 433, and a second steering box 434. The output shaft of the drive component 2 is rotatably mounted on the side of the drive wheel 431 via a mounting shaft. The drive wheel 431 is rotatably mounted on the side of the transmission shaft bearing seat 433 via a mounting shaft. A power shaft is rotatably arranged inside the transmission shaft bearing seat 433. One end of the power shaft is equipped with a driven wheel 432 that meshes with the drive wheel 431. The other end of the power shaft is connected to the input shaft of the second steering box 434. The top end of the stirring shaft 31 is connected to the output shaft of the second steering box 434. The transmission shaft bearing seat 433 is mounted on the frame 1 for use.

[0034] In this embodiment, when the drive assembly 2 is working, it drives the drive wheel 431 to rotate in both directions via the connecting rod 24, reducing the adhesion of materials on the stirring blades. The drive wheel 431 drives the driven wheel 432, which meshes with it, to rotate, causing the power shaft in the transmission shaft bearing seat 433 to rotate. The power shaft drives the stirring assembly 3 to work through the second steering box 434, which facilitates the use of this stirring device. In this embodiment, the drive assembly 2 is arranged vertically and the transmission assembly 4 is arranged horizontally. Example 4

[0035] like Figures 6-11 As shown, this embodiment discloses a forward and reverse reversible stirring device for mixing pyrotechnic agents. Its structure is largely the same as that of Embodiment 1, except that in this embodiment, a positioning part 32 is provided at the top of the stirring shaft 31. The transmission assembly 4 is connected and driven to the stirring shaft 31 through the positioning part 32, and the stirring shaft 31 is rotatably mounted on the frame 1 through the positioning part 32. A mounting part 33 is provided on the lower side of the stirring shaft 31, and stirring blades 34 are mounted on the mounting part 33 of the stirring shaft 31. Multiple sets of stirring blades 34 are arranged from top to bottom; preferably, three sets of stirring blades 34 are arranged, with adjacent sets of stirring blades 34 spaced 60° apart clockwise. Specifically, as shown... Figure 6 As shown, to facilitate the stirring of the stirring component 3, the three sets of stirring blades 34 are arranged from bottom to top as follows: Figure 8 , Figure 9 , Figure 10 As shown.

[0036] The stirring blade 34 comprises a mounting cylinder 341, and stirring rods 342 are arranged on both sides of the mounting cylinder 341, and a scraping piece 343 is arranged at the end of the stirring rod 342 away from the stirring shaft 31, and the scraping piece 343 is replaceable, the mounting cylinder 341 is detachably mounted on the mounting portion 33 of the stirring shaft 31, and the mounting portion 33 of the stirring shaft 31 is in a polygonal structure, preferably a hexagonal structure, the mounting cylinder 341 is matched with the mounting portion 33, and in the embodiment, the stirring blade 34 is detachably arranged, so that the stirring blade 34 is convenient to maintain and replace.

[0037] It should be noted that the bottom of the bottommost stirring blade 34 is also provided with a scraping piece 343, as shown in the figure, Figure 8 The side of the topmost stirring blade 34 is provided with an extension rod, as shown in the figure, Figure 10 When the stirring assembly 3 stirs the material in the material barrel, the scraping piece 343 cleans the material adhered to the barrel wall of the material barrel, so that part of the material adhered to the barrel wall cannot be effectively mixed. Embodiment five

[0038] The embodiment discloses a forward and reverse stirring device for mixing pyrotechnic compositions, and the structure is basically same as that of the fourth embodiment, and the difference lies in that the stirring blade 34 is fixedly installed on the mounting portion 33 of the stirring shaft 31, and the stirring blade 34 can also be fixed on the mounting portion 33 of the stirring shaft 31 through the mounting cylinder 341.

[0039] The parts not disclosed in the utility model are prior art, and the specific structure, material and working principle are not described in detail; the above embodiments are only used to illustrate the technical scheme of the utility model, and are not limited to the above, the implementation mode of the utility model is not limited to the above embodiments, and for ordinary skilled in the art, any change, modification, replacement, combination, simplification made without departing from the principle of the utility model should be equivalent replacement mode, which should be covered in the scope of the claims and the specification of the utility model.

Claims

1. A forward-reverse rotation stirring device for mixing a pyrotechnic composition, comprising a frame (1), characterized in that: The rack (1) is provided with a stirring assembly (3) for stirring and mixing of the smoke powder, and a driving assembly (2) is installed in the rack (1), an output shaft of the driving assembly (2) is provided with a transmission assembly (4), the driving assembly (2) drives the stirring assembly (3) to work through the transmission assembly (4), the stirring assembly (3) comprises a stirring shaft (31), and a plurality of stirring blades (34) are installed on the stirring shaft (31). The driving assembly (2) comprises a motor (21), a speed reducer (22), a crank shaft (23) and a connecting rod (24), the speed reducer (22) is installed on an output shaft of the motor (21), one end of the crank shaft (23) is fixedly connected with a working end of the speed reducer (22), the other end of the crank shaft (23) is rotatably connected with one end of the connecting rod (24), and the end, away from the crank shaft (23), of the connecting rod (24) is the output shaft of the driving assembly (2).

2. The forward-reverse rotation stirring device for mixing a pyrotechnic composition according to claim 1, characterized in that: The transmission assembly (4) is a first transmission assembly (41), the first transmission assembly (41) comprises a guide rail (411), a transmission shaft (415) and a first steering box (416), a sliding block (412) is slidably installed on the guide rail (411), a rack (413) is fixedly installed on the side of the sliding block (412), the output shaft of the driving assembly (2) is rotatably installed on the side of the rack (413), the transmission shaft (415) is provided with a first gear (414) at one end, the first gear (414) is meshed with the rack (413), the other end of the transmission shaft (415) is connected with an input shaft of the first steering box (416), and the top end of the stirring shaft (31) is connected with an output shaft of the first steering box (416).

3. The forward-reverse rotation stirring device for mixing a pyrotechnic composition according to claim 1, characterized in that: The transmission assembly (4) is a second transmission assembly (42), the second transmission assembly (42) comprises a transmission gear plate (421), a connecting plate (422) is fixedly arranged on the side of the transmission gear plate (421), the output shaft of the driving assembly (2) is rotatably connected with the side of the connecting plate (422), and the top end of the stirring shaft (31) is fixedly provided with a second gear (423), the second gear (423) is meshed with the transmission gear plate (421).

4. The forward-reverse rotation stirring device for mixing a pyrotechnic composition according to claim 1, characterized in that: The transmission assembly (4) is a third transmission assembly (43), the third transmission assembly (43) comprises a driving wheel (431), a transmission shaft bearing seat (433) and a second steering box (434), the output shaft of the driving assembly (2) is rotatably installed on the side of the driving wheel (431), the driving wheel (431) is rotatably installed on the side of the transmission shaft bearing seat (433), a power shaft is rotatably arranged in the transmission shaft bearing seat (433), a driven wheel (432) is installed at one end of the power shaft and is meshed with the driving wheel (431), the other end of the power shaft is connected with an input shaft of the second steering box (434), and the top end of the stirring shaft (31) is connected with an output shaft of the second steering box (434).

5. The forward-reverse rotation stirring device for mixing pyrotechnic compositions according to claim 1, characterized in that: The top of the stirring shaft (31) is provided with a positioning part (32), the transmission assembly (4) is connected and driven with the stirring shaft (31) through the positioning part (32), the side lower part of the stirring shaft (31) is provided with a mounting part (33), the stirring blade (34) is mounted on the mounting part (33) of the stirring shaft (31), and the stirring blade (34) is provided with multiple groups from top to bottom.

6. The forward-reverse rotation stirring device for mixing a pyrotechnic composition according to claim 5, characterized in that: The stirring blade (34) comprises a mounting cylinder (341), and a plurality of stirring rods (342) are arranged on the two sides of the mounting cylinder (341); the end, away from the stirring shaft (31), of the stirring rod (342) is provided with a scraping piece (343), and the scraping piece (343) is replaceable; the mounting cylinder (341) is detachably mounted on the mounting part (33) of the stirring shaft (31), and the mounting part (33) of the stirring shaft (31) is in a polygonal structure, and the mounting cylinder (341) is matched with the mounting part (33).

7. The forward-reverse rotation stirring device for mixing pyrotechnic compositions according to claim 5, characterized in that: The stirring blade (34) is fixedly mounted on the mounting part (33) of the stirring shaft (31).

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