Concrete aggregate weighing device
By setting up three silos and a sorting mechanism in the concrete aggregate weighing device, and controlling only one silo to be connected to the weighing hopper, the problem of silo maintenance affecting production is solved, continuous production and weighing stability are achieved, and production efficiency and aggregate quality are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JIYING SUPPLY CHAIN MANAGEMENT CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-10
AI Technical Summary
In the continuous production process, the maintenance of the silos in existing concrete weighing devices can disrupt the production flow, and the simultaneous discharge of materials from multiple silos can easily lead to impact loads, affecting production efficiency and weighing stability.
Design a concrete aggregate weighing device, including three longitudinally installed hoppers and a sorting mechanism. Only one hopper is connected to the weighing hopper by a slider and a telescopic cylinder to avoid simultaneous feeding from multiple hoppers. The device also improves stability through a buffer plate and a fixed frame to ensure continuous production.
This allows other silos to continue production while one silo is under maintenance, avoiding material feeding conflicts, improving weighing stability and production efficiency, reducing wear, and ensuring aggregate quality.
Smart Images
Figure CN224108896U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the processing technical field of concrete aggregate, in particular to a weighing device of concrete aggregate. BACKGROUND
[0002] The aggregate of concrete refers to the granular loose material that plays a skeleton or filling role in concrete. The aggregate of concrete occupies a large part of the total volume of concrete, so it can be said that the aggregate of concrete is an important component indispensable in the concrete structure. According to the different particle sizes, the aggregate of concrete can be further divided into two categories of coarse aggregate and fine aggregate. Specifically, the aggregate with a particle size greater than 4.75 millimeters is defined as coarse aggregate, while the aggregate with a particle size between 0.15 millimeters and 4.75 millimeters is called fine aggregate. Coarse aggregate plays a role in building a close structure in concrete, which provides the necessary strength and stability for concrete. Fine aggregate forms mortar after mixing with cement, filling the voids between coarse aggregate, which not only enhances the compactness of concrete, but also improves the workability of concrete. Therefore, in the production process of concrete, it is crucial to ensure the measurement accuracy of coarse aggregate and fine aggregate, which directly affects the overall quality of concrete. Among the many measurement methods, the method of using a weighing device with a weighing sensor as the core to accurately measure the aggregate is widely adopted. This weighing device automatically compensates for the weighing error, ensuring the accuracy of aggregate measurement, thus playing a crucial role in concrete production and having broad application prospects.
[0003] In the process of weighing the aggregate, first use a forklift or other handling equipment to push the aggregate into the hopper for storage. The discharge valve of the hopper is opened by program control, so that the aggregate falls into the scale hopper equipped with a weighing sensor. The weighing sensor then accurately weighs the aggregate falling into the scale hopper. When the actual weight of the aggregate detected by the weighing sensor meets the weighing requirements, the program will control the discharge valve of the hopper to close, to stop the discharging process of the aggregate. At the same time, the program will also control the discharge valve of the scale hopper to open, so as to transport the aggregate in the scale hopper to the concrete mixing equipment for mixing and stirring. In order to ensure the stability and safety of the weighing process, regular maintenance work is required for the hopper, which includes removing impurities adhering to the inner wall of the hopper, and checking whether the hopper bracket and bolts have fatigue cracks or looseness, so as to prevent potential fracture risk and ensure the safety of the concrete production process. However, in the scenario of continuous production of concrete, the maintenance work of the hopper will inevitably interrupt the continuous production process of the concrete, which will adversely affect the production efficiency. If multiple hoppers are connected to the scale hopper, although the continuous production requirement can be met, multiple hoppers may simultaneously discharge, which will cause the scale hopper to bear a large impact load. Therefore, the concrete weighing in practical application has certain improvement space, which aims to better meet the requirements of continuous production, avoid multiple hoppers discharging at the same time, and more effectively meet the demand of concrete weighing, and ensure the long-term stable use of the hopper. SUMMARY
[0004] In view of the shortcomings of the prior art, the utility model provides a concrete aggregate weighing device which can meet the requirements of continuous production and avoid multiple hoppers discharging at the same time, and overcomes the defects in the prior art.
[0005] The technical scheme adopted by the utility model is as follows: a concrete aggregate weighing device, comprising a rack, a weighing sensor arranged on the rack, and a scale hopper arranged on the weighing sensor, wherein the top of the scale hopper is provided with three hoppers, the three hoppers are installed on the rack along the longitudinal direction, and a sorting mechanism is arranged between the three hoppers and the scale hopper; the sorting mechanism comprises a fixed plate arranged on the rack, a support plate arranged above the fixed plate, a sliding block arranged between the fixed plate and the support plate, and a telescopic cylinder arranged on the sliding block, the support plate and the fixed plate are both provided with three through holes at equal intervals along the longitudinal direction, the three through holes arranged on the support plate are communicated with the outlet ends of the three hoppers respectively, the three through holes arranged on the fixed plate are all communicated with the inner cavity of the scale hopper, a through hole is arranged on the sliding block, the through hole arranged on the support plate is communicated with the through hole arranged on the fixed plate, and the telescopic cylinder is installed on the fixed plate.
[0006] Preferably, a plurality of support holes are uniformly arranged at the edges of the support plate, a plurality of screw rods are movably sleeved in the support holes, bottom ends of the screw rods are installed at the edges of the top surface of the fixed plate, first nuts are arranged at the two sides of the support plate, the first nuts are in contact with the support plate, the first nuts are threadedly sleeved on the screw rods, and the support plate is clamped and fixed on the screw rods through the first nuts; the two sides of the sliding block are provided with a plurality of rollers, the plurality of rollers are rotatably installed on the fixed plate along the longitudinal direction at equal intervals, and rolling surfaces of the plurality of rollers are in contact with the side surfaces of the sliding block.
[0007] Preferably, the bottom plate of the scale hopper gradually decreases from one side of the scale hopper to the other side of the scale hopper, the bottom end of the scale hopper is obliquely provided with a discharge port, the discharge port is located on the other side of the scale hopper, and a first discharge valve is installed on the discharge port.
[0008] Preferably, a weighing plate and a buffer plate made of elastic material are arranged between the weighing sensor and the scale hopper, the weighing plate is installed on the weighing sensor, the buffer plate is located between the weighing plate and the scale hopper, the two sides of the buffer plate are in contact with the scale hopper and the weighing plate respectively, a fixing frame is sleeved on the scale hopper, the fixing frame is installed on the scale hopper, a long rod bolt is vertically arranged between the fixing frame and the weighing plate, a fixing hole is arranged at the edge of the fixing frame and the edge of the weighing plate respectively, the fixing hole is movably sleeved on the long rod bolt, a second nut is threadedly sleeved on the long rod bolt, and the scale hopper and the buffer plate are clamped on the weighing plate through the long rod bolt and the second nut.
[0009] Preferably, a fixing frame is movably sleeved on the scale hopper, a top end of the fixing frame is installed on the bottom surface of the fixed plate, and an inner cavity section of the fixing frame is consistent with an outer shape section of the scale hopper.
[0010] Preferably, three second discharge valves and three conveying pipes are arranged between the silos and the support plate, one ends of the three conveying pipes are installed on the three second discharge valves respectively, the other ends of the three conveying pipes are installed on the support plate, the three conveying pipes are in communication with three through holes arranged on the support plate, the three second discharge valves are installed on the bottom ends of the three silos respectively, and the silos are in communication with the conveying pipes through the second discharge valves.
[0011] Preferably, a screen is arranged on each of the three silos, the screen is installed on a top end of the silo, and a partition plate is arranged between adjacent silos, the partition plate is installed on the silo, and the partition plate is in contact with the screen.
[0012] The utility model has the advantages of the following: firstly, the utility model is provided with three stock bins, so that the aggregate can be conveyed through the other two stock bins when one of the stock bins is maintained, thereby meeting the requirement of continuous production.
[0013] Secondly, the utility model is provided with a screw rod and a first nut, so that the supporting plate is clamped on the fixed plate, and the movement direction of the sliding block is restricted by the rollers, thereby limiting the movement of the sliding block in the longitudinal direction only.
[0014] Thirdly, the utility model is provided with a buffer plate, so that the impact force generated when the aggregate falls into the hopper is buffered, thereby reducing the abrasion between the aggregate and the hopper and improving the stability of the aggregate conveying. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the first three-dimensional schematic view of the utility model.
[0016] Figure 2 It is the first three-dimensional schematic view of the utility model. Figure 1
[0017] Figure 3 It is the second three-dimensional schematic view of the utility model.
[0018] Figure 4 It is the second three-dimensional schematic view of the utility model. Figure 3
[0019] Figure 5 It is the assembly explosion view of the fixed frame, the supporting plate and the fixed plate in the utility model.
[0020] Figure 6 It is the assembly explosion view of the first stock bin and the weighing sensor in the utility model. DETAILED DESCRIPTION
[0021] As Figures 1 to 6 shown in the figure, a kind of concrete aggregate weighing device, including rack 1, weighing sensor 2 being provided on rack 1 and scale hopper 3 being provided on weighing sensor 2, the top of the scale hopper 3 is provided with three bins 4, three bins 4 are installed on rack 1 along the longitudinal direction, and sorting mechanism is provided between three bins 4 and scale hopper 3;The sorting mechanism includes the fixed plate 5 provided on the rack 1, the support plate 6 provided above the fixed plate 5, the sliding block 7 provided between the fixed plate 5 and the support plate 6 and the telescopic cylinder 8 provided on the sliding block 7, the support plate 6 and the fixed plate 5 are all respectively spaced apart along the longitudinal direction Three through holes 9 are provided, the three through holes 9 provided on the support plate 6 are respectively communicated with the outlet end of the three bins 4, the three through holes 9 provided on the fixed plate 5 are all communicated with the inner cavity of the scale hopper 3, the sliding block 7 is provided with a through hole 10, the through hole 10 provided on the support plate 6 is communicated with the through hole 9 provided on the fixed plate 5, and the telescopic cylinder 8 is installed on the fixed plate 5, by controlling the through hole 10 provided on the sliding block 7 to be communicated with one of the through holes 9, so that one of the bins 4 is communicated with the scale hopper 3, so as to convey the aggregate in one of the bins 4 into the scale hopper 3, so as to weigh the aggregate conveyed by one of the bins 4 using the weighing sensor 2. By telescoping the telescopic cylinder 8, the sliding block 7 is driven to slide on the top surface of the fixed plate 5, so that the through hole 10 is communicated with different through holes 9, so as to conveniently switch different bins 4 to be communicated with the scale hopper 3, so as to use the scale hopper 3 for weighing processing, to avoid the problem of discharging conflict;The length of the middle part of the sliding block 7 to the side surface of the sliding block 7 is not less than the distance between the three through holes 9 provided on the support plate 6, so that when one of the through holes 9 is communicated with the through hole 10, the other two through holes 9 are blocked by the sliding block 7.
[0022] In the embodiment, a plurality of support holes 11 are uniformly provided at the edges of the support plate 6, a plurality of screw rods 12 are movably sleeved in the support holes 11, the bottom ends of the screw rods 12 are installed at the edges of the top surface of the fixed plate 5, a first nut 13 is arranged at each side of the support plate 6, the first nut 13 is in contact with the support plate 6, the first nut 13 is threadedly sleeved on the screw rod 12, and the support plate 6 is clamped and fixed on the screw rod 12 through the first nut 13, so as to assemble the support plate 6 to the fixed plate 5;A plurality of rollers 14 are arranged at the two sides of the sliding block 7, the plurality of rollers 14 are rotatably installed on the fixed plate 5 along the longitudinal direction, and the rolling surfaces of the plurality of rollers 14 are respectively in contact with the side surfaces of the sliding block 7, so as to constrain the moving direction of the sliding block 7, to limit the sliding block 7 to move only along the longitudinal direction.
[0023] Specifically, the bottom plate of the scale hopper 3 gradually decreases from one side of the scale hopper 3 to the other side of the scale hopper 3, so as to facilitate the movement of the aggregate entering the scale hopper 3 towards the bottom end of the scale hopper 3, the bottom end of the scale hopper 3 is inclined to form a discharge port 15, the discharge port 15 is located on the other side of the scale hopper 3, a conveying belt is arranged below the discharge port 15, so as to convey the weighed aggregate, the discharge port 15 is provided with a first discharge valve 16, the opening and closing of the first discharge valve 16 is controlled, so as to control the discharge treatment of the scale hopper 3.
[0024] Please refer to Figure 1 、 2 and 6 again, the weighing sensor 2 and the scale hopper 3 are respectively provided with a weighing plate 17 and a buffer plate 18 made of elastic material, the weighing plate 17 is installed on the weighing sensor 2, the buffer plate 18 is located between the weighing plate 17 and the scale hopper 3, the two sides of the buffer plate 18 are respectively in contact with the scale hopper 3 and the weighing plate 17, so as to buffer the impact force of the aggregate falling into the scale hopper 3 by the buffer plate 18, so as to improve the stability of the aggregate conveying; the scale hopper 3 is sleeved with a fixing frame 19, the fixing frame 19 is installed on the scale hopper 3, a long rod bolt 20 is vertically arranged between the fixing frame 19 and the weighing plate 17, a fixing hole 21 is formed at the edge of the fixing frame 19 and the edge of the weighing plate 17 respectively, the fixing hole 21 is movably sleeved on the long rod bolt 20, a second nut 22 is threadedly sleeved on the long rod bolt 20, the scale hopper 3 and the buffer plate 18 are clamped on the weighing plate 17 through the long rod bolt 20 and the second nut 22, so as to assemble the buffer plate 18 and the scale hopper 3 to the weighing plate 17.
[0025] Please refer to Figure 1 、 2 and 5 again, the scale hopper 3 is movably sleeved with a fixing frame 23, the top end of the fixing frame 23 is installed on the bottom surface of the fixing plate 5, the inner cavity section of the fixing frame 23 is consistent with the outer shape section of the scale hopper 3, so as to conveniently limit the top of the scale hopper 3, and guide the aggregate passing through the fixing plate 5 to be conveyed towards the scale hopper 3.
[0026] In the embodiment, three second discharge valves 24 and three conveying pipes 25 are respectively arranged between the silos 4 and the support plate 6, one end of each of the three conveying pipes 25 is installed on the three second discharge valves 24 respectively, the other end of each of the three conveying pipes 25 is installed on the support plate 6, the three conveying pipes 25 are in communication with the three through holes 9 formed on the support plate 6 respectively, the three second discharge valves 24 are installed on the bottom end of the three silos 4 respectively, the silos 4 are in communication with the conveying pipes 25 through the second discharge valves 24, so as to control the communication or closing of the silos 4 and the conveying pipes 25 by controlling the second discharge valves 24.
[0027] Please refer to Figures 1 to 3Each of the three hoppers 4 is equipped with a screen 26, which is installed on the top of the hopper 4 to screen the aggregate fed into the hopper 4. A partition 27 is provided between adjacent hoppers 4. The partition 27 is installed on the hopper 4 and is in contact with the screen 26 to prevent the aggregate from falling into the gap between adjacent hoppers 4.
[0028] The instructions for using this product are as follows: Figures 1 to 6 As shown, firstly, the three second discharge valves 24 are closed, and the aggregate is sequentially pushed into the three hoppers 4 for storage using a forklift or other handling equipment. Impurities screened on the screen 26 are removed to prevent them from affecting the aggregate feeding into the hoppers 4. Then, by controlling the extension length of the telescopic cylinder 8, one hopper 4 is connected to the weighing hopper 3, and the discharge ports of the other two hoppers 4 are blocked to prevent simultaneous feeding from all three hoppers 4. The second discharge valve 24 on one of the hoppers 4 is then opened to allow the aggregate in that hopper 4 to be transported to the weighing hopper 3 via the conveying pipe 25. The weighing sensor then accurately weighs the aggregate falling into the weighing hopper 3. Once the actual weight of the aggregate detected by the weighing sensor meets the weighing requirements, the program closes the second discharge valve 24 on one of the hoppers 4 to stop the aggregate feeding process. At the same time, the program will also control the opening of the first discharge valve 16 so that the aggregate in the weighing hopper 3 falls onto the conveyor belt, and then the aggregate is transported to the concrete mixing equipment for mixing.
[0029] In this embodiment, by setting up three hoppers 4, aggregate can be transported through the other two hoppers 4 while one hopper 4 is being maintained, in order to meet the requirements of continuous production. Furthermore, this invention uses a slider 7 to control that only one hopper 4 is connected to the weighing hopper 3, while the channels between the other two hoppers 4 and the weighing hopper 3 are blocked by the slider 7, to prevent multiple hoppers from discharging simultaneously and thus avoid discharging conflicts. A telescopic cylinder 8 is installed between the slider 7 and the fixed plate 5, which drives the slider 7 to slide on the fixed plate 5, thereby switching between different hoppers 4 and the weighing hopper 3.
[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A concrete aggregate weighing device, comprising a frame (1), a weighing sensor (2) arranged on the frame (1), and a scale hopper (3) arranged on the weighing sensor (2), characterized in that: The upper part of the scale hopper (3) is provided with three hoppers (4), the three hoppers (4) are installed on the rack (1) along the longitudinal direction, and the three hoppers (4) are provided with a sorting mechanism between the three hoppers (4) and the scale hopper (3); The sorting mechanism comprises a fixed plate (5) provided on the rack (1), a support plate (6) provided above the fixed plate (5), a sliding block (7) provided between the fixed plate (5) and the support plate (6), and a telescopic cylinder (8) provided on the sliding block (7), the support plate (6) and the fixed plate (5) are both provided with three through holes (9) at equal intervals along the longitudinal direction, the three through holes (9) provided on the support plate (6) are communicated with the outlet ends of the three hoppers (4) respectively, the three through holes (9) provided on the fixed plate (5) are communicated with the inner cavities of the scale hopper (3) respectively, the sliding block (7) is provided with a through hole (10), the through holes (9) provided on the support plate (6) are communicated with the through holes (9) provided on the fixed plate (5) through the through hole (10), and the telescopic cylinder (8) is installed on the fixed plate (5).
2. A concrete aggregate weighing apparatus as claimed in claim 1, wherein: The support plate (6) is uniformly provided with a plurality of support holes (11) at the edges, a plurality of screw rods (12) are movably sleeved in the support holes (11) respectively, bottom ends of the screw rods (12) are installed at edges of the top surface of the fixed plate (5), first nuts (13) are arranged at two sides of the support plate (6) respectively, the first nuts (13) are in contact with the support plate (6), the first nuts (13) are threadedly sleeved on the screw rods (12), and the support plate (6) is clamped and fixed on the screw rods (12) through the first nuts (13); the sliding block (7) is provided with a plurality of rollers (14) at two sides respectively, the plurality of rollers (14) are rotatably installed on the fixed plate (5) at equal intervals along the longitudinal direction, and rolling surfaces of the plurality of rollers (14) are in contact with the side surfaces of the sliding block (7) respectively.
3. The apparatus of claim 1, wherein: The bottom plate of the scale hopper (3) gradually decreases from one side of the scale hopper (3) to the other side of the scale hopper (3), the bottom end of the scale hopper (3) is provided with a discharge port (15) in a slope manner, the discharge port (15) is located on the other side of the scale hopper (3), and the discharge port (15) is provided with a first discharge valve (16).
4. The apparatus of claim 1, wherein: The weighing sensor (2) and the weighing hopper (3) are respectively provided with a weighing plate (17) and a buffer plate (18) made of elastic material, the weighing plate (17) is installed on the weighing sensor (2), the buffer plate (18) is located between the weighing plate (17) and the weighing hopper (3), and the two sides of the buffer plate (18) are respectively in contact with the weighing hopper (3) and the weighing plate (17); the weighing hopper (3) is sleeved with a fixing frame (19), the fixing frame (19) is installed on the weighing hopper (3), a long rod bolt (20) is vertically arranged between the fixing frame (19) and the weighing plate (17), a fixing hole (21) is respectively formed in the edge of the fixing frame (19) and the edge of the weighing plate (17), the fixing hole (21) is movably sleeved on the long rod bolt (20), a second nut (22) is threadedly sleeved on the long rod bolt (20), and the weighing hopper (3) and the buffer plate (18) are clamped on the weighing plate (17) through the long rod bolt (20) and the second nut (22).
5. The apparatus of claim 1, wherein: The weighing hopper (3) is movably sleeved with a fixing frame (23), the top end of the fixing frame (23) is installed on the bottom surface of the fixing plate (5), and the inner cavity section of the fixing frame (23) is consistent with the outer shape section of the weighing hopper (3).
6. The apparatus of claim 1, wherein: The material bin (4) and the supporting plate (6) are respectively provided with three second discharge valves (24) and three conveying pipes (25), one end of each of the three conveying pipes (25) is installed on the three second discharge valves (24), the other end of each of the three conveying pipes (25) is installed on the supporting plate (6), the three conveying pipes (25) are in communication with the three through holes (9) formed in the supporting plate (6), and the three second discharge valves (24) are installed on the bottom ends of the three material bins (4).
7. The apparatus of claim 1, wherein: The three material bins (4) are respectively provided with screen meshes (26), the screen meshes (26) are installed on the top ends of the material bins (4), and adjacent material bins (4) are provided with partition plates (27), the partition plates (27) are installed on the material bins (4) and in contact with the screen meshes (26).