Double-shaft cement mixing device

By using a servo motor to drive the threaded rod to drive the moving plate and the nozzle to flush, and the brush is brushed and cleaned, solving the problem of difficult cleaning of the mixing shaft in the prior art, achieving a convenient cleaning process and efficient operation.

CN222987247UActive Publication Date: 2025-06-17QINGDAO DAMING NEW BUILDING MATERIALS (CEMENTS) CO LTD
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Patent Information

Application Number
CN202421477710.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-06-17
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The existing two-axis cement mixer is difficult to clean when the mixing shaft is inside the shell, which makes it more troublesome to remove the equipment every time you clean it.

Method used

A two-axis cement mixing device is designed, using servo motors, threaded rods, mobile plates, spray heads, brushes and other components. The servo motor drives the threaded rod to rotate, drive the moving plates and spray heads to move, the spray heads are flushed, and the brushes are brushed and cleaned, achieving convenient cleaning of the agitating shaft.

Benefits of technology

It is possible to facilitate cleaning of the agitating shaft after cement mixing, simplify the cleaning process, avoid the trouble of equipment disassembly, and improve operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cement production, and discloses a double-shaft cement mixing device which comprises a base, fixing plates are fixedly connected to the two sides of the base, a second servo motor is fixedly connected to the bottom wall of the fixing plate on one side, and the output end of the second servo motor penetrates through the fixing plates and is fixedly connected with a threaded rod. And movable plates are in threaded connection with the peripheries of the threaded rods, springs are fixedly connected to the front portions and the rear portions of the sides, away from each other, in the two connecting plates, sliding plates are fixedly connected to the ends, close to each other, of the springs on the two sides, brushes are fixedly connected to the sides, close to each other, of the two sliding plates, and the two brushes penetrate through the side walls, close to each other, of the connecting plates. According to the cement mixing device disclosed by the utility model, under the combined action of the servo motor II, the threaded rod, the movable plate, the spray head, the base, the connecting plate, the brush, the spring and the sliding plate, the brush can be pushed to be effectively contacted with the double shafts, and the spray head is matched for flushing, so that the effect of conveniently cleaning mixed cement can be achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a double-shaft cement mixing device. Background Art

[0002] A cement double-shaft mixer is a device used to uniformly mix various raw materials during the cement production process to form cement. The cement double-shaft mixer, whose full name is a double-horizontal-shaft forced cement mixer, has a mixing drum in the shape of two connected troughs, and two horizontally arranged mixing shafts are installed inside. When the mixing shafts rotate, on the one hand, the mixture at the bottom and in the middle of the mixing drum is turned upwards, and on the other hand, the mixture is pushed forward and backward along the axis respectively, so that the mixture is quickly and evenly stirred, thus having a good stirring effect.

[0003] After retrieval, the Chinese patent publication number: CN217834133U, discloses a double-shaft mixer for cement production, including a frame body, a housing and a stirring rod. A fixing structure is arranged at the top of the frame body. Springs are fixed at the top and bottom inside the housing block installed at the top of the frame body, and a limiting block is fixed at the top of the spring. A rotating assembly is installed on one side of the stirring rod. This utility model can disassemble and assemble the stirring rod through the provided disassembly and assembly structure. After use, the stirring rod needs to be cleaned. At this time, the stirring rod needs to be disassembled. The limiting block is pushed out from the inside of the slot. At this time, the fixing between the clamping block and the fixed shell is released, and the clamping block can be taken out from the inside of the fixed shell. Then the stirring rod can be taken out for cleaning. After cleaning, the limiting block is pushed into the inside of the clamping block, and then the clamping block is slid into the inside of the fixed shell. At this time, the spring expands to push the limiting block into the inside of the slot, so that the stirring rod can be fixed, realizing the disassembly and assembly of the stirring rod; however, in this application, it is not convenient to clean the stirring shaft when it is inside the housing, resulting in the need for disassembly every time for cleaning, which is rather troublesome. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a double-shaft cement mixing device, aiming to improve the problem that it is not convenient to clean the stirring shaft when it is inside the housing in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A double-shaft cement mixing device, including a base, wherein a disassembly and assembly mechanism is arranged inside the base, fixing plates are fixedly connected to both sides of the base, a servo motor two is fixedly connected to the bottom wall of one of the fixing plates, the output end of the servo motor two penetrates through the fixing plate and is fixedly connected to a threaded rod, a moving plate is threadedly connected to the outer periphery of the threaded rod, connecting plates are fixedly connected to both sides of the bottom wall of the moving plate, water pipes are fixedly connected to the closer sides of the two connecting plates, a connecting pipe is communicated with the upper sides of the middle parts of the two water pipes, a plurality of spray heads are communicated with the bottom walls of the two water pipes, springs are fixedly connected to the front and rear parts of the farther sides inside the two connecting plates, sliding plates are fixedly connected to the closer ends of the two springs, brushes are fixedly connected to the closer sides of the two sliding plates, and both brushes penetrate through the closer side walls of the connecting plates.

[0006] Through the above technical solution: It can facilitate the cleaning after cement mixing.

[0007] As a further description of the above technical solution:

[0008] The disassembly and assembly mechanism includes mounting discs, the two mounting discs are rotatably connected to both sides of the rear wall of the base, knobs are rotatably connected to the rear walls of the two mounting discs, the front ends of the two knobs penetrate through the inner walls of the mounting discs and are fixedly connected to turntables, connecting rods one are rotatably connected to both sides of the rear ends of the two turntables, the other ends of the plurality of connecting rods one away from the turntables are rotatably connected to connecting rods two, the other ends of the plurality of connecting rods two away from the connecting rods one penetrate into the base, the front ends of the two mounting discs penetrate through the inner rear wall of the base and are rotatably connected to stirring shafts, chucks are fixedly connected to the front ends of the two stirring shafts, a gear one is clamped by one of the chucks, and a gear two is clamped by the other chuck.

[0009] Through the above technical solution: It can facilitate the disassembly and installation of the stirring shaft.

[0010] As a further description of the above technical solution:

[0011] A bracket is fixedly connected to the front wall of the base, a servo motor one is fixedly connected to the front wall of the bracket, the output end of the servo motor one penetrates through the bracket and is fixedly connected to a gear one, a gear two is meshed with one side of the gear one, and the rear ends of the gear one and the gear two penetrate through the inner front wall of the base.

[0012] Through the above technical solution: It can drive the stirring shaft to rotate and mix the cement.

[0013] As a further description of the above technical solution:

[0014] One end of the moving plate away from the threaded rod penetrates through a limiting rod, and both the upper and lower ends of the limiting rod are fixedly connected to the upper and lower walls inside the fixed plate.

[0015] Through the above technical solution: It is possible to limit the moving plate and prevent it from rotating along with the threaded rod.

[0016] As a further description of the above technical solution:

[0017] On the front and rear parts of the mutually remote sides inside the two connecting plates, guide rods are fixedly connected. The mutually close ends of the guide rods on both sides penetrate through the sliding plate and are fixedly connected to the mutually close sides inside the connecting plates. A plurality of springs are all arranged on the outer circumference of the guide rods.

[0018] Through the above technical solution: It is possible to ensure the stability of the sliding plate movement and prevent the springs from bending.

[0019] As a further description of the above technical solution:

[0020] One end of each of the plurality of second connecting rods away from the first connecting rod is fixedly connected with a limiting block. On the upper and lower sides of the outer circumferences of the two mounting discs, limiting grooves are provided.

[0021] Through the above technical solution: It is possible to limit the second connecting rod and prevent it from completely retracting into the mounting disc.

[0022] As a further description of the above technical solution:

[0023] On the upper and lower sides of the two mounting discs, positioning grooves are provided. A plurality of positioning grooves are all provided on the rear wall of the base. On the upper and lower walls of the two mounting discs, positioning blocks are fixedly connected. A plurality of positioning blocks are all engaged in the positioning grooves.

[0024] Through the above technical solution: It is possible to position the mounting disc and facilitate the installation of the mounting disc by the staff.

[0025] As a further description of the above technical solution:

[0026] On the front ends of the two knobs, locking members are rotatably connected. The rear ends of the two locking members all penetrate through the inner rear wall of the mounting disc and are threadedly connected to the mounting disc.

[0027] Through the above technical solution: It is possible to lock and limit the knobs.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present utility model, under the combined action of the second servo motor, the threaded rod, the moving plate, the nozzle, the base, the connecting plate, the brush, the spring and the sliding plate, the brush can be pushed into effective contact with the double shaft, and then rinsed with the nozzle, so as to achieve the effect of facilitating the cleaning after cement mixing.

[0030] 2. In the present utility model, under the combined action of the knob, the turntable, the first connecting rod, the second connecting rod, the base, the mounting plate, the clamping block and the stirring shaft, by rotating the knob, the limit between the mounting plate and the base can be cancelled, so as to achieve the effect of facilitating the installation and disassembly of the stirring shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of a double-shaft cement mixing device proposed by the present utility model;

[0032] Figure 2 is a partial front view sectional view of a double-shaft cement mixing device proposed by the present utility model;

[0033] Figure 3 is a rear view of a double-shaft cement mixing device proposed by the present utility model;

[0034] Figure 4 is a top view of a double-shaft cement mixing device proposed by the present utility model;

[0035] Figure 5 is a side view sectional view of a double-shaft cement mixing device proposed by the present utility model;

[0036] Figure 6 is a schematic diagram of the turntable structure of a double-shaft cement mixing device proposed by the present utility model.

[0037] LEGEND DESCRIPTION:

[0038] 1. Base; 2. Installation and disassembly mechanism; 201. Mounting plate; 202. Positioning block; 203. Positioning groove; 204. Knob; 205. Locking part; 206. Turntable; 207. First connecting rod; 208. Second connecting rod; 209. Limiting block; 210. Limiting groove; 211. Clamping block; 212. Bracket; 213. First gear; 214. Second gear; 215. First servo motor; 216. Stirring shaft; 3. Fixed plate; 4. Second servo motor; 5. Moving plate; 6. Connecting plate; 7. Nozzle; 8. Brush; 9. Connecting pipe; 10. Water pipe; 11. Spring; 12. Guide rod; 13. Threaded rod; 14. Limiting rod; 15. Sliding plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present utility model: a double-shaft cement mixing device, including a base 1, a disassembly and assembly mechanism 2 is arranged in the base 1, fixing plates 3 are fixedly connected to both sides of the base 1, a servo motor two 4 is fixedly connected to the bottom wall of one fixing plate 3, the output end of the servo motor two 4 penetrates through the fixing plate 3 and is fixedly connected to a threaded rod 13, a moving plate 5 is threadedly connected to the outer circumference of the threaded rod 13, connecting plates 6 are fixedly connected to both sides of the bottom wall of the moving plate 5, water pipes 10 are fixedly connected to the closer sides of the two connecting plates 6, a connecting pipe 9 is communicated with the upper sides of the middles of the two water pipes 10, a plurality of spray nozzles 7 are communicated with the bottom walls of the two water pipes 10, springs 11 are fixedly connected to the front and rear parts of the farther sides in the two connecting plates 6, the closer ends of the two springs 11 are fixedly connected to a sliding plate 15, brushes 8 are fixedly connected to the closer sides of the two sliding plates 15, and the two brushes 8 penetrate through the closer side walls of the connecting plates 6; a limiting rod 14 penetrates through one end of the moving plate 5 away from the threaded rod 13, and the upper and lower ends of the limiting rod 14 are fixedly connected to the upper and lower walls in the fixing plate 3; guide rods 12 are fixedly connected to the front and rear parts of the farther sides in the two connecting plates 6, the closer ends of the two guide rods 12 penetrate through the sliding plate 15 and are fixedly connected to the closer sides in the connecting plates 6, and a plurality of springs 11 are arranged on the outer circumference of the guide rods 12;

[0041] Specifically, after the cement mixing is completed and discharged from the base 1, the staff can drive the threaded rod 13 to rotate by starting the second servo motor 4; when the threaded rod 13 rotates, it can drive the connected moving plate 5 to move. Since the moving plate 5 is also limited by the limiting rod 14, the moving plate 5 will move up and down as the threaded rod 13 rotates; when the moving plate 5 moves downward, it can drive the nozzle 7 to extend into the base 1 and move up and down on both sides of the double shaft. Then, the flushing water is injected through the connecting pipe 9. After the water enters the connecting pipe 9, it will enter the water pipes 10 on both sides respectively and be sprayed out through multiple nozzles 7, so as to be able to flush the double shaft; at the same time, during the flushing process, the brush 8 arranged on the connecting plate 6 will also contact the double shaft in the base 1. As the double shaft rotates, the brush 8 can brush and clean it; among them, the bristles of the protruding part of the brush 8 will clean the part of the double shaft close to the axis, while the bristles of the non-protruding part can clean the edge part of the double shaft; and because the bristles are made of flexible material and have a certain elasticity, the double shaft can squeeze the bristles to bend during rotation without affecting the rotation of the double shaft; at the same time, during the cleaning process, since the brush 8 contacts the double shaft, it will be subjected to a certain pressure from the double shaft, causing the brush 8 to move into the connecting plate 6 and compress the spring 11 through the sliding plate 15. When the spring 11 is compressed, it will also provide an opposite acting force. Thus, under the action of the spring 11, the brush 8 can be pushed to effectively contact the double shaft to ensure the cleaning efficiency; furthermore, it achieves the effect of being convenient for cleaning after cement mixing, and the sliding plate 15 is also limited by the guide rod 12, so as to ensure the stability of the movement of the sliding plate 15.

[0042] Refer to Figure 1 , Figure 5 and Figure 6 , the disassembly and assembly mechanism 2 includes a mounting plate 201. The two mounting plates 201 are both rotatably connected to both sides of the rear wall of the base 1. The rear walls of the two mounting plates 201 are both rotatably connected with knobs 204. The front ends of the two knobs 204 penetrate through the inner walls of the mounting plates 201 and are fixedly connected with turntables 206. The two sides of the rear ends of the two turntables 206 are both rotatably connected with a first connecting rod 207. One end of each of the multiple first connecting rods 207 away from the turntable 206 is rotatably connected with a second connecting rod 208. One end of each of the multiple second connecting rods 208 away from the first connecting rod 207 penetrates into the base 1. The front ends of the two mounting plates 201 both penetrate through the inner rear wall of the base 1 and are rotatably connected with stirring shafts 216. The front ends of the two stirring shafts 216 are both fixedly connected with clamping blocks 211. One clamping block 211 is clamped with a first gear 213, and the other clamping block 211 is clamped with a second gear 214;

[0043] Specifically, when the stirring shaft 216 needs to be disassembled after long-term use, the staff can drive the turntable 206 to rotate by turning the knob 204. When the turntable 206 rotates, it can drive the corresponding connecting rod one 207 to move. Since the connecting rod one 207 is also connected to the connecting rod two 208 and the connecting rod two 208 is limited by the mounting plate 201, as the turntable 206 rotates, the connecting rod one 207 will also rotate accordingly and pull the corresponding connecting rod two 208 to approach or extend. When the connecting rod two 208 approach each other, they can be pulled out from the base 1, thus canceling the limit between the mounting plate 201 and the base 1. And under the action of the limit block 209 and the limit groove 210, the connecting rod two 208 can be limited to prevent it from completely retracting into the mounting plate 201. Then the mounting plate 201 and the corresponding stirring shaft 216 can be pulled out for thorough cleaning or replacement. When installation is required, only the mounting plate 201 and the stirring shaft 216 need to be inserted into the base 1 together, and the clamping blocks 211 fixed on the stirring shaft 216 are respectively inserted into the gear one 213 and the gear two 214 for limitation, so as to achieve the effect of facilitating the installation and disassembly of the stirring shaft 216.

[0044] Refer to Figure 1 、 Figure 2 and Figure 4 As shown in

[0045] Specifically, by starting the servo motor one 215, the gear one 213 fixed to the output end can be driven to rotate. When the gear one 213 rotates, it can drive the meshing gear two 214 to rotate, so that the two stirring shafts 216 clamped by the clamping blocks 211 can be driven to rotate simultaneously.

[0046] Refer to Figure 3 and Figure 4 As shown in

[0047] Specifically, by setting the cooperation between the positioning groove 203 and the positioning block 202, the mounting disk 201 can be limited during installation, making the installation of the mounting disk 201 more convenient. And after the mounting disk 201 and the stirring shaft 216 are installed, the locking member 205 can be rotated. Since the locking member 205 is connected to the mounting disk 201 by threads, as the locking member 205 rotates, the locking member 205 can move forward and press the knob 204, thereby positioning the knob 204.

[0048] Working principle: During actual use, by starting the second servo motor 4, the threaded rod 13 can be driven to rotate and drive the moving plate 5 to move downward. Thus, the spray head 7 can be driven to extend into the base 1 and move up and down on both sides of the double shaft, and then the double shaft can be rinsed. At the same time, during the rinsing process, the brush 8 provided on the connecting plate 6 will also contact the double shaft in the base 1 and clean it. The bristles on the protruding part of the brush 8 will clean the part of the double shaft close to the axis, while the bristles on the non-protruding part can clean the edge part of the double shaft. And during the cleaning process, the brush 8 will be subjected to a certain pressure from the double shaft, causing the brush 8 to move into the connecting plate 6 and compress the spring 11. Thus, under the action of the spring 11, the brush 8 can be pushed to effectively contact the double shaft to ensure the cleaning efficiency, and further achieve the effect of facilitating the cleaning after the cement is mixed. In addition, by rotating the knob 204, the turntable 206 can be driven to rotate, and the first connecting rod 207 provided on the turntable 206 can be used to pull the second connecting rod 208 out of the base 1. Thus, the limit between the mounting disk 201 and the base 1 is cancelled, and then the mounting disk 201 and the corresponding stirring shaft 216 can be pulled out, achieving the effect of facilitating the installation and disassembly of the stirring shaft 216.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-shaft cement mixing device, comprising a base (1), characterized in that: The base (1) is provided with an assembly and disassembly mechanism (2). Both sides of the base (1) are fixedly connected with fixed plates (3). The bottom wall of one side of the fixed plate (3) is fixedly connected with a servo motor 2 (4). The output end of the servo motor 2 (4) passes through the fixed plate (3) and is fixedly connected with a threaded rod (13). The outer periphery of the threaded rod (13) is threadedly connected with a movable plate (5). Both sides of the bottom wall of the movable plate (5) are fixedly connected with connecting plates (6). The adjacent sides of the two connecting plates (6) are fixedly connected with water pipes (10). The middle upper sides of the two water pipes (10) are connected with connecting pipes (9). The bottom walls of the two water pipes (10) are connected with a plurality of nozzles (7). The front and rear parts of the two connecting plates (6) are fixedly connected with springs (11). The adjacent ends of the springs (11) on both sides are fixedly connected with slide plates (15). The adjacent sides of the two slide plates (15) are fixedly connected with brushes (8). The two brushes (8) pass through the adjacent side walls of the connecting plates (6).

2. A biaxial cement mixing device according to claim 1, characterized in that: The mounting and disassembly mechanism (2) comprises a mounting plate (201), the two mounting plates (201) being rotatably connected to both sides of the rear wall of the base (1), the rear walls of the two mounting plates (201) being rotatably connected to knobs (204), the front ends of the two knobs (204) passing through the inner wall of the mounting plate (201) and being fixedly connected to a rotating disk (206), the rear ends of the two rotating disks (206) being rotatably connected to connecting rods (207), and the plurality of connecting rods (207) being spaced away from the rotating disks (206). One end is rotatably connected to a second connecting rod (208); the ends of the plurality of second connecting rods (208) away from the first connecting rod (207) are all inserted into the base (1); the front ends of the two mounting plates (201) are all inserted into the inner rear wall of the base (1) and are rotatably connected to a stirring shaft (216); the front ends of the two stirring shafts (216) are fixedly connected to a clamping block (211); one side of the clamping block (211) is engaged with a gear one (213), and the other side of the clamping block (211) is engaged with a gear two (214).

3. A biaxial cement mixing device according to claim 2, characterized in that: The front wall of the base (1) is fixedly connected to a bracket (212), the front wall of the bracket (212) is fixedly connected to a servo motor 1 (215), the output end of the servo motor 1 (215) passes through the bracket (212) and is fixedly connected to a gear 1 (213), one side of the gear 1 (213) is meshed with a gear 2 (214), and the rear ends of the gear 1 (213) and the gear 2 (214) both pass through the inner front wall of the base (1).

4. A biaxial cement mixing device according to claim 1, characterized in that: One end of the movable plate (5) away from the threaded rod (13) passes through a limiting rod (14), and the upper and lower ends of the limiting rod (14) are fixedly connected to the upper and lower inner walls of the fixed plate (3).

5. A biaxial cement mixing device according to claim 1, characterized in that: The front and rear parts of the two connecting plates (6) on the far side are fixedly connected to guide rods (12), the close ends of the guide rods (12) on both sides pass through the slide plate (15) and are fixedly connected to the close side of the connecting plate (6), and the plurality of springs (11) are arranged on the periphery of the guide rods (12).

6. A double-shaft cement mixing device according to claim 2, characterized in that: One end of the plurality of connecting rods 2 (208) away from the connecting rod 1 (207) is fixedly connected to a limiting block (209), and limiting grooves (210) are provided on the upper and lower sides of the outer circumferences of the two mounting plates (201).

7. A double-shaft cement mixing device according to claim 2, characterized in that: Positioning grooves (203) are provided on the upper and lower sides of the two installation plates (201), and a plurality of the positioning grooves (203) are provided on the rear wall of the base (1). Positioning blocks (202) are fixedly connected to the upper and lower walls of the two installation plates (201), and a plurality of the positioning blocks (202) are snapped into the positioning grooves (203).

8. A double-shaft cement mixing device according to claim 2, characterized in that: The front ends of the two knobs (204) are rotatably connected to locking members (205), and the rear ends of the two locking members (205) penetrate the inner rear wall of the mounting plate (201) and are threadedly connected to the mounting plate (201).

Citation Information

Patent Citations

  • Double-shaft mixer for cement production

    CN217834133U