Mixing device for concrete aggregate

Abstract

The utility model discloses a concrete aggregate mixing device which structurally comprises a mixing box and a conveying cylinder, aggregate to be discharged is input into the conveying cylinder through a feeding port, and a first motor drives a spiral auger to rotate to enable the aggregate to move towards an opening. Large particles in the aggregate are screened and discharged through a screening net in the moving process, qualified aggregate falls into the storage box to apply pressure to a stress plate, the weight of the aggregate is measured under the action of a pressure sensor, and after a set value is reached, an electric push rod opens a cover plate through a pull rod; according to the concrete mixing device, the aggregate is fed into the mixing box through the feeding groove opening, so that the effect of automatic quantitative discharging is achieved, the situation that the manual discharging speed is low is avoided, the working efficiency is higher, and the practicability is better, and a second motor drives a rotating shaft to enable a stirring rod to rotate to achieve the mixing effect; and the condition that the aggregate is adhered to the inner wall can be avoided under the scraping plate on the side edge, so that the subsequent cleaning work is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete aggregate production equipment, and in particular to a mixing device for concrete aggregate. Background Technology

[0002] Concrete aggregates refer to the sand and stone that play a skeletal role in concrete. Before using aggregates, various aggregates need to be mixed.

[0003] In the current concrete aggregate mixing process, the aggregates are mixed according to the installation ratio. However, most of the time, the aggregates are weighed manually and then poured into the mixing chamber. This method is labor-intensive, has a large workload, and low work efficiency.

[0004] Therefore, a mixing device for quantitatively mixing concrete aggregates is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To overcome the shortcomings of existing technologies, a concrete aggregate mixing device is proposed to solve the problem that current concrete aggregates are mostly weighed manually before being poured into the mixing chamber, which is labor-intensive, has a large workload, and low work efficiency.

[0007] (II) Technical Solution

[0008] This utility model is achieved through the following technical solution: This utility model proposes a mixing device for concrete aggregates, including a mixing box, and a controller is installed on the outside of the mixing box.

[0009] The mixing tank has a conveying cylinder with an opening on one side at the top, and a spiral auger is rotatably installed inside the conveying cylinder. A first motor is installed on the outside of the conveying cylinder and connected to the spiral auger. A feed inlet is provided at the upper side of the conveying cylinder. A screening screen is provided at the bottom of the conveying cylinder. An internally inclined storage box is provided at the lower end of the conveying cylinder, and the upper end of the storage box covers the screening screen. A rotatable cover is installed at the bottom opening of the storage box. A force-bearing plate is installed on the bottom surface of the storage box through a pressure sensor. A feed trough is provided at the bottom opening of the storage box and connects downward to one side of the top of the mixing tank.

[0010] Furthermore, a rotating shaft is rotatably installed in the middle of the mixing box, a second motor is installed at the top of the mixing box and connected to the rotating shaft, several stirring rods are provided on the outside of the rotating shaft, a discharge port is provided at the bottom of the mixing box, and a support foot is provided at the bottom of the mixing box.

[0011] Furthermore, a scraper is provided on the outer side of the stirring rod to contact the inner wall of the mixing tank.

[0012] Furthermore, the outer side of the scraper is provided with several convex balls.

[0013] Furthermore, the bottom of the stirring rod is provided with several bottom rods.

[0014] Furthermore, several conveying cylinders are arranged side by side, and the conveying cylinders are of different lengths.

[0015] Furthermore, the bottom end of the conveying cylinder is symmetrically provided with fixed blocks on both sides, and a rotating rod is provided between the fixed blocks to rotately connect with the cover plate. The outer side of the cover plate is symmetrically provided with internal sliding grooves and force-bearing grooves, and a pull rod is slidably installed between the force-bearing grooves. An electric push rod is installed on the outer side of the feed trough, and the output end of the electric push rod is connected to the middle of the pull rod.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] 1. In this utility model, by pouring aggregate into the conveying cylinder and allowing it to pass through a screening screen under the rotation of the auger, large particles in the aggregate are screened out. This avoids poor mixing effect when large particles are mixed, which affects the mixing quality, resulting in better mixing effect and higher practicality.

[0019] Furthermore, during the later stages of screening, the aggregate falls into the storage box, where it is supported by a load-bearing plate. The pressure sensor at the bottom measures the weight of the falling aggregate, and once the set value is reached, the auger stops rotating. This achieves the purpose of quantitative feeding and mixing, avoiding manual weighing and feeding, thus increasing work efficiency, reducing the rate of manual weighing, and reducing labor intensity.

[0020] 2. In this utility model, the aggregate inside is stirred by the stirring rod, and the scraper installed on the side and the bottom rod set at the bottom can make the mixing effect on the outside better, avoiding the situation of poor mixing effect on the side. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 2 This is a top view of the conveyor cylinder of this utility model;

[0024] Figure 3 This is a top view of the internal structure of the conveying cylinder of this utility model;

[0025] Figure 4This is a schematic diagram of the internal structure of the conveying cylinder of this utility model.

[0026] Figure 5 This is a schematic diagram of the side mounting structure of the cover plate of this utility model;

[0027] In the diagram: Mixing box-1, Support foot-2, Conveying cylinder-3, Spiral auger-4, First motor-5, Feed inlet-6, Screening screen-7, Storage box-8, Feed trough-9, Pressure sensor-10, Force plate-11, Cover plate-12, Electric push rod-13, Rotating shaft-14, Second motor-15, Stirring rod-16, Scraper-17, Convex ball-18, Bottom rod-19, Discharge port-110, Controller-111, Fixing block-112, Rotating rod-113, Force push groove-114, Pull rod-115. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] Please see Figures 1-5 This utility model provides a concrete aggregate mixing device, including a mixing tank 1 for mixing raw materials placed inside. A controller 111 is installed on the outside of the mixing tank 1 to operate the electrical components in the device under the control of the externally purchased controller 111, thereby improving the working effect. A rotating shaft 14 is rotatably installed in the middle of the mixing tank 1. A second motor 15 is installed at the top of the mixing tank 1 and connected to the rotating shaft 14. Several stirring rods 16 are provided on the outside of the rotating shaft 14. The second motor 15 drives the rotating shaft 14 to rotate the outer stirring rods 16, thereby causing the stirring rods 16 to stir and mix the aggregate inside the mixing tank 1. A discharge port 110 is provided at the bottom of the mixing tank 1. This allows the discharge port 110 to easily discharge the mixed raw materials. The bottom of the mixing box 1 is equipped with a support foot 2 to raise the bottom, making it easier for the discharge port 110 to discharge the bottom material. The outside of the stirring rod 16 is equipped with a scraper 17 that contacts the inner wall of the mixing box 1, so that the side can scrape the inner wall during mixing, preventing the aggregate from sticking to the inner wall, and allowing the side to be scraped by force, which can prevent the side from not being mixed. The outside of the scraper 17 is equipped with several convex balls 18. The rotation of the convex balls 18 can make the internal crushing and mixing effect better. The bottom of the stirring rod 16 is equipped with several bottom rods 19, and the rotation of the bottom rods 19 can make the bottom more comprehensive during the rotation process, making the mixing more uniform.

[0030] The mixing chamber 1 has several conveyor cylinders 3 with one side opening at the top, allowing for simultaneous screening and quantitative feeding of several different aggregates. This results in faster operation and better practicality. The conveyor cylinders 3 are of varying lengths, facilitating feeding and receiving. A spiral auger 4 is rotatably mounted inside each conveyor cylinder 3, and a first motor 5 is connected to the spiral auger 4 on the outside of the conveyor cylinder 3. A feed inlet 6 is located at the upper side of each conveyor cylinder 3, allowing aggregates to be fed into the conveyor cylinder 3. The first motor 5 drives the spiral auger 4, causing it to move the aggregates to one side. A screening screen 7 is located at the bottom of each conveyor cylinder 3, screening the aggregates as they move. This separates large particles from qualified aggregates, allowing the qualified aggregates to fall downwards while the large particles are discharged to one side. This improves the mixing effect and avoids... To address the issue of large aggregate particles affecting the mixing effect, the lower end of the conveyor cylinder 3 is equipped with an internally inclined storage box 8. The inclined bottom facilitates the downward discharge of aggregates, and the upper end of the storage box 8 encloses the screening screen 7, making the screening more complete and preventing side leakage. A rotatable cover plate 12 is installed at the bottom opening of the storage box 8. The cover plate 12 prevents aggregates from falling down when the side is opened. After the cover plate 12 is opened, the aggregates can be automatically discharged downwards. A force plate 11 is installed on the bottom surface of the storage box 8 through a pressure sensor 10. Under the action of the force plate 11, the screened aggregates are supported, and gravity is applied downwards to the pressure sensor 10 to measure the weight of the aggregates. This achieves the purpose of quantitative feeding and mixing, avoiding manual weighing and improving work efficiency. The bottom opening of the storage box 8 is equipped with a feed chute 9 that connects downwards to one side of the top of the mixing box 1, so that the weighed aggregates are discharged downwards into the interior of the mixing box 1 for mixing.

[0031] The conveyor cylinder 3 has symmetrical fixed blocks 112 on both sides of its bottom end, and a rotating rod 113 is provided between the fixed blocks 112 to rotate and connect with the cover plate 12. This allows the top of the cover plate 12 to rotate and open the bottom end for material discharge. The cover plate 12 has symmetrically provided force-receiving grooves 114 with internal sliding grooves on its outer side, and a pull rod 115 is slidably installed between the force-receiving grooves 114. This allows the pull rod 115 to move under force in the force-receiving grooves 114, which facilitates pulling the cover plate 12 to flip and move it with spacing. An electric push rod 13 is installed on the outer side of the feed trough 9, and the output end of the electric push rod 13 is connected to the middle of the pull rod 115. When the electric push rod 13 pulls the pull rod 115 to slide in the force-receiving grooves 114, the cover plate 12 can flip when the top end rotates, which can open the bottom end of the storage box 8 to achieve material discharge and sealing.

[0032] Working principle: In use, first connect the first motor 5, pressure sensor 10, electric push rod 13, second motor 15 and controller 111, and connect them to an external power supply. Then, the aggregate is fed into the conveying cylinder 3 through the feed port 6. The first motor 5 drives the spiral auger 4 to rotate, which moves the aggregate inside, allowing it to move in the screening screen 7 for screening. Large aggregate particles are discharged from the side opening, while qualified aggregate falls into the storage box 8. Under the support of the force plate 11, the lower end can apply force to the pressure sensor 10, allowing the weight of the aggregate to be measured. After reaching the set value, the spiral auger 4 stops rotating. Then, the electric push rod 13 pulls the pull rod 115, causing the cover plate 12 to rotate and flip, so that the aggregate inside the storage box 8 is discharged into the mixing box 1 through the feed trough 9. Then, the second motor 15 drives the rotating shaft 14 to rotate the stirring rod 16, which mixes the aggregate inside, thus completing the work.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mixing device for concrete aggregate, comprising a mixing tank (1), wherein a controller (111) is installed on the outside of the mixing tank (1), characterized in that... ； The mixing box (1) has a conveying cylinder (3) with an opening on one side at the top, and a spiral auger (4) is rotatably installed inside the conveying cylinder (3). A first motor (5) is installed on the outside of the conveying cylinder (3) and connected to the spiral auger (4). A feed inlet (6) is provided at the upper side of the conveying cylinder (3). A screening screen (7) is provided at the bottom of the conveying cylinder (3). An internally inclined storage box (8) is provided at the lower end of the conveying cylinder (3), and the screening screen (7) is wrapped at the upper end of the storage box (8). A rotatable cover plate (12) is installed at the bottom opening of the storage box (8). A force plate (11) is installed on the bottom surface of the storage box (8) through a pressure sensor (10). A feed trough (9) is provided at the bottom opening of the storage box (8) and connects downward to one side of the top of the mixing box (1).

2. The concrete aggregate mixing device according to claim 1, characterized in that: A rotating shaft (14) is rotatably installed in the middle of the mixing box (1). A second motor (15) is installed at the top of the mixing box (1) and connected to the rotating shaft (14). Several stirring rods (16) are provided on the outside of the rotating shaft (14). A discharge port (110) is provided at the bottom of the mixing box (1). A support foot (2) is provided at the bottom of the mixing box (1).

3. A mixing device for concrete aggregates according to claim 2, characterized in that: The outside of the stirring rod (16) is provided with a scraper (17) that contacts the inner wall of the mixing box (1).

4. A mixing device for concrete aggregates according to claim 3, characterized in that: The scraper (17) has several protruding balls (18) on its outer side.

5. A mixing device for concrete aggregates according to claim 2, characterized in that: The stirring rod (16) has several bottom rods (19) at its bottom.

6. A mixing device for concrete aggregates according to claim 1, characterized in that: Several conveying cylinders (3) are arranged side by side, and the conveying cylinders (3) are of different lengths.

7. A mixing device for concrete aggregates according to claim 1, characterized in that: The bottom of the conveying cylinder (3) is symmetrically provided with fixed blocks (112) on both sides, and a rotating rod (113) is provided between the fixed blocks (112) and rotatedly connected to the cover plate (12). The cover plate (12) is symmetrically provided with internal sliding grooves and force-bearing grooves (114), and a pull rod (115) is slidably installed between the force-bearing grooves (114). An electric push rod (13) is installed on the outside of the feed trough (9), and the output end of the electric push rod (13) is connected to the middle of the pull rod (115).

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