Efficient blanking anti-blocking device for powder of concrete mixer

Abstract

The utility model relates to the technical field of concrete production, and discloses an efficient blanking anti-blocking device for powder of a concrete mixer, which comprises a hopper, the upper end of the hopper is provided with a feed port, the lower end of the hopper is provided with a discharge pipe, and the upper end of the hopper is fixedly connected with a first driver. A first rotating shaft is fixedly connected to the output end of the first driver, a plurality of stirring rods are fixedly connected to the first rotating shaft, a mechanical box is arranged in the hopper and fixedly connected with the inner wall of the hopper through a supporting rod, a feeding mechanism is arranged in the discharging pipe, and a driving mechanism used for driving the feeding mechanism is fixedly connected to the side face of the hopper. Powder materials in the hopper are stirred through rotation of the stirring rod, the powder materials are prevented from caking, then the powder materials can be continuously pushed downwards through rotation of the spiral stirring blades, and the blocking phenomenon can be effectively avoided even under the condition that the powder materials are large in viscosity or prone to caking.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a high-efficiency material discharge and anti-blocking device for powder materials of a concrete mixer. Background Art

[0002] The supply and delivery of powder materials (such as cement and fly ash) is a critical step in the concrete production process. However, due to the physical properties of powder materials (such as small particles and easy agglomeration), traditional material delivery devices often experience blockage during operation. This not only affects production efficiency but can also damage equipment and increase maintenance costs.

[0003] The patent with the current announcement number CN217046933U discloses an improved powder feeding device for concrete mixers. In order to solve the problem that the current concrete mixers cannot break up the lumps in the powder beforehand when adding powder, which is not conducive to its uniform mixing, and the powder easily sticks to the inner wall of the hopper during feeding and is difficult to remove, the following scheme is proposed, which includes a hopper, an annular box is fixedly provided in the hopper, a motor is fixedly provided on one side of the hopper, a connecting shaft is fixedly provided on the output shaft of the motor, the connecting shaft is rotatably provided in the annular box, two cams are fixedly provided on the outside of the connecting shaft, both cams are located in the annular box, and a ring plate is slidably provided in the annular box. The above technical structure is reasonably designed, convenient for breaking up the agglomerated powder before feeding, and convenient for removing the sticking powder, and is easy to use.

[0004] However, the above technology still has the following problems:

[0005] Although stirring can prevent the powder material on the top of the hopper from agglomerating, the powder material will still re-agglomerate above the discharge port of the hopper. The powder material particles are small and have poor fluidity, which can easily clog the discharge port. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the utility model provides a high-efficiency anti-blocking device for powder material discharge of a concrete mixer, which can stir the powder material to prevent agglomeration and further promote the flow of powder material in the discharge pipe to prevent the powder material from being blocked in the discharge pipe.

[0007] The utility model provides the following technical solution: a high-efficiency material discharge and anti-blocking device for concrete mixer powder, comprising a hopper, an upper end of the hopper is provided with a feed port, a lower end of the hopper is provided with a discharge pipe, the upper end of the hopper is fixedly connected to a first driver, an output end of the first driver is fixedly connected to a first rotating shaft, a plurality of stirring rods are fixedly connected to the first rotating shaft, a mechanical box is provided inside the hopper, the mechanical box is fixedly connected to the inner wall of the hopper through a support rod, a feeding mechanism is provided in the discharge pipe, and a driving mechanism for driving the feeding mechanism is fixedly connected to the side of the hopper.

[0008] Furthermore, the upper end of the mechanical box is rotatably connected to the first rotating shaft, and the upper surface of the mechanical box is inclined.

[0009] Furthermore, the feeding mechanism includes a second rotating shaft rotatably connected to the mechanical box, the lower end of the second rotating shaft is arranged inside the discharge pipe, the second rotating shaft is fixedly connected to a spiral stirring blade, and the upper end of the second rotating shaft is fixedly connected to a first bevel gear.

[0010] Furthermore, the upper end of the spiral stirring blade is located at the upper part of the discharge pipe.

[0011] Furthermore, the driving mechanism includes a second driver fixedly connected to the outer wall of the hopper, the output end of the second driver is fixedly connected to a third rotating shaft, the third rotating shaft is rotationally connected between the hopper, and the third rotating shaft is fixedly connected to a second bevel gear meshing with the first bevel gear.

[0012] Furthermore, the second driver is a variable frequency speed regulating motor or a stepless speed regulating motor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This highly efficient, anti-blocking device for powder material discharge in a concrete mixer utilizes a first actuator to rotate the first shaft, thereby rotating the stirring rod, thereby stirring the powder material within the hopper and preventing it from agglomerating. The drive mechanism is then activated to operate the conveying mechanism, and the rotating spiral stirring blades continuously push the powder material downward, effectively preventing blockage even in cases of viscous or easily agglomerated materials. Furthermore, the first and second shafts are not directly connected but driven by a single motor to prevent excessively high-speed conveying, which can lead to the stirring rod rotating at high speed due to the high viscosity and poor fluidity of the powder material, thereby preventing damage to the motor due to excessive load. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2This is a schematic diagram of the cross-sectional three-dimensional structure of the interior of the hopper of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A above.

[0018] In the figure: 1. Hopper; 2. Feed port; 3. Discharge pipe; 4. First drive; 5. First rotating shaft; 6. Stirring rod; 7. Mechanical box; 8. Support rod; 9. Second rotating shaft; 10. Spiral stirring blade; 11. First bevel gear; 12. Second drive; 13. Third rotating shaft; 14. Second bevel gear. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1 to 3 A high-efficiency material discharge and anti-blocking device for concrete mixer powder comprises a hopper 1, a feeding port 2 is provided at the upper end of the hopper 1, a discharge pipe 3 is provided at the lower end of the hopper 1, the upper end of the hopper 1 is fixedly connected to a first driver 4, the output end of the first driver 4 is fixedly connected to a first rotating shaft 5, a plurality of stirring rods 6 are fixedly connected to the first rotating shaft 5, a mechanical box 7 is provided inside the hopper 1, and the mechanical box 7 is fixedly connected to the inner wall of the hopper 1 through a support rod 8, a feeding mechanism is provided in the discharge pipe 3, and a driving mechanism for driving the feeding mechanism is fixedly connected to the side of the hopper 1.

[0021] The high-efficiency anti-blocking device for powder material discharge of concrete mixer in the present invention is similar in structure to the existing improved powder material feeding device for concrete mixer, such as the patent with announcement number CN217046933U which discloses an improved powder material feeding device for concrete mixer. The main improvement of the present invention is that by starting the first driver 4, the first rotating shaft 5 can be rotated, thereby rotating the stirring rod 6, thereby stirring the powder material inside the hopper 1 to prevent the powder material from agglomerating. Then, by starting the driving mechanism, the conveying mechanism is operated, and the rotation of the spiral stirring blade 10 can continuously push the powder material downward, which can effectively avoid the blockage phenomenon even when the material is highly viscous or easily agglomerated. Figures 1 to 3As shown, the efficient material discharge and anti-blocking device for concrete mixer powder in the utility model is used. When in use, the first driver 4 is driven, and the first driver 4 causes the first rotating shaft 5 to rotate, so that the stirring rod 6 rotates with the first rotating shaft 5. After the powder material is fed into the hopper 1, the stirring rod 6 can stir the powder material to prevent the powder material from staying in the hopper 1 for too long and agglomerating, and can also make the powder material be stirred more evenly. When it is necessary to convey the powder material into the mixer, the second driver 12 is started, and the second driver 12 causes the third rotating shaft 13 to rotate, thereby causing the second bevel gear 14 to rotate. Since the second bevel gear 14 is meshed with the first bevel gear 11, the first bevel gear 11 is rotated, thereby causing the second rotating shaft 9 and the spiral stirring blade 10 fixedly connected to the second rotating shaft 9 to rotate. The rotation of the spiral stirring blade 10 can continuously push the powder material above the discharge pipe 3 downward, and effectively avoid blockage even when the material is highly viscous or prone to agglomeration.

[0022] like Figure 2 or Figure 3 As shown, the upper end of the mechanical box 7 is rotatably connected to the first rotating shaft 5, and the upper surface of the mechanical box 7 is inclined.

[0023] Specifically, the diameter of the mechanical box 7 is larger than the diameter of the first rotating shaft 5 , and the inclined surface setting can make the powder material flow downward, reducing the powder material falling on the top of the mechanical box 7 .

[0024] like Figure 2 or Figure 3 As shown, the feeding mechanism includes a second rotating shaft 9 rotatably connected to the mechanical box 7, the lower end of the second rotating shaft 9 is arranged inside the discharge pipe 3, the second rotating shaft 9 is fixedly connected to a spiral stirring blade 10, and the upper end of the second rotating shaft 9 is fixedly connected to a first bevel gear 11.

[0025] Specifically, the feeding mechanism is meshed and connected with the second bevel gear 14 on the driving mechanism through the first bevel gear 11, so that when the driving mechanism is running, it drives the first bevel gear 11 to rotate, thereby causing the second rotating shaft 9 fixedly connected to the first bevel gear 11 to rotate, and the spiral stirring blade 10 rotates along with the second rotating shaft 9. The rotation of the spiral stirring blade 10 can continuously push the powder material above the discharge pipe 3 downward, and can effectively avoid blockage even when the material is highly viscous or prone to agglomeration.

[0026] like Figure 2 As shown, the upper end of the spiral stirring blade 10 is located at the upper part of the discharge pipe 3.

[0027] Specifically, the upper end of the spiral stirring blade 10 is located at the upper part of the discharge pipe 3 in order to facilitate the powder material to quickly flow between the spiral stirring blades 10, thereby facilitating the downward transportation of the powder material.

[0028] like Figure 2 or Figure 3 As shown, the driving mechanism includes a second driver 12 fixedly connected to the outer wall of the hopper 1, the output end of the second driver 12 is fixedly connected to a third rotating shaft 13, the third rotating shaft 13 is rotationally connected between the hopper 1, and the third rotating shaft 13 is fixedly connected to a second bevel gear 14 meshing with the first bevel gear 11.

[0029] Specifically, the second driver 12 is started, and the second driver 12 rotates the third shaft 13, thereby rotating the second bevel gear 14. Since the second bevel gear 14 is meshed with the first bevel gear 11, the first bevel gear 11 rotates, thereby operating the conveying mechanism.

[0030] like Figure 1 or Figure 2 As shown, the second driver 12 is a variable frequency speed regulating motor or a stepless speed regulating motor.

[0031] Specifically, the variable frequency speed regulating motor or the continuously variable speed motor can adjust the speed of the third rotating shaft 13, thereby controlling the speed of the second bevel gear 14, the first bevel gear 11, the second rotating shaft 9 and the spiral stirring blade 10 in turn, thereby controlling the flow rate of the powder material.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency anti-blocking device for discharging powder materials of a concrete mixer, comprising a hopper (1), a feed port (2) provided at the upper end of the hopper (1), and a discharge pipe (3) provided at the lower end of the hopper (1), characterized in that: The upper end of the hopper (1) is fixedly connected to a first driver (4), the output end of the first driver (4) is fixedly connected to a first rotating shaft (5), a plurality of stirring rods (6) are fixedly connected to the first rotating shaft (5), a mechanical box (7) is provided inside the hopper (1), the mechanical box (7) is fixedly connected to the inner wall of the hopper (1) through a support rod (8), a feeding mechanism is provided in the discharge pipe (3), and a driving mechanism for driving the feeding mechanism is fixedly connected to the side of the hopper (1).

2. The high-efficiency anti-blocking device for powder material discharge of a concrete mixer according to claim 1 is characterized in that: The upper end of the mechanical box (7) is rotatably connected to the first rotating shaft (5), and the upper surface of the mechanical box (7) is inclined.

3. The high-efficiency anti-blocking device for powder material discharge of a concrete mixer according to claim 1 or 2, characterized in that: The feeding mechanism comprises a second rotating shaft (9) rotatably connected to the mechanical box (7), the lower end of the second rotating shaft (9) is arranged inside the discharge pipe (3), a spiral stirring blade (10) is fixedly connected to the second rotating shaft (9), and the upper end of the second rotating shaft (9) is fixedly connected to the first bevel gear (11).

4. The high-efficiency anti-blocking device for powder material discharge of a concrete mixer according to claim 3, characterized in that: The upper end of the spiral stirring blade (10) is located at the upper part of the discharge pipe (3).

5. The high-efficiency anti-blocking device for powder material discharge of a concrete mixer according to claim 3, characterized in that: The driving mechanism comprises a second driver (12) fixedly connected to the outer wall of the hopper (1); an output end of the second driver (12) is fixedly connected to a third rotating shaft (13); the third rotating shaft (13) is rotatably connected to the hopper (1); and a second bevel gear (14) meshing with the first bevel gear (11) is fixedly connected to the third rotating shaft (13).

6. The high-efficiency anti-blocking device for powder material discharge of a concrete mixer according to claim 4, characterized in that: The second driver (12) is a variable frequency speed regulating motor or a stepless speed regulating motor.

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