Raw material weighing device for producing concrete retarder

Abstract

The utility model discloses a raw material weighing device for concrete retarder production relates to weighing device technical field, the utility model discloses a support frame, the support frame top fixedly connected has and places the bucket, the support frame bottom is provided with the feeding box, the feeding box top is provided with the weighing assembly, the weighing assembly is including the weighing box of fixed connection in the feeding box top, the weighing board of fixed connection in the weighing box inside. The utility model discloses a dynamic weighing sensor and the closed loop control of automatic control valve realize accurate dosing, and the raw material is from the placement barrel and enters the weighing box through the discharge pipe, and the flow sensor monitors the dosing amount, and the dynamic weighing sensor synchronously gathers weight data. When the weight reaches the set value, the automatic control valve closes immediately, and then the first hydraulic cylinder drives the push plate and pushes the raw material into the falling pipe, and the closed loop control reduces the weighing error, avoids the manual operation deviation, ensures the retarder proportioning accuracy, and improves the product performance consistency.

Description

Technical Field

[0001] This utility model belongs to the technical field of weighing devices, and in particular relates to a weighing device for raw materials used in the production of concrete retarder. Background Technology

[0002] Concrete retarders are admixtures used to delay the setting time of concrete. By inhibiting the cement hydration reaction rate, they ensure the workability of concrete in high-temperature environments or during long-distance transportation, while avoiding construction defects caused by premature hardening. Their main components are organic, inorganic, and composite materials. Precise proportioning is necessary to achieve the retarding effect while also considering the later-stage strength and durability of the concrete.

[0003] In the production of concrete retarder, raw material weighing and mixing are key steps, but traditional processes have the following shortcomings: manual or simple mechanical weighing is easily affected by factors such as differences in powder flowability, leading to deviations in raw material ratios and affecting the consistency of product performance. Weighing and mixing are carried out in steps, requiring multiple material transfers, which increases operation time. To address these issues, we provide a raw material weighing device for concrete retarder production. Utility Model Content

[0004] The purpose of this invention is to provide a raw material weighing device for the production of concrete retarder. By using the weighing component and the conveying component together, it solves the problems of existing weighing devices, which are easily affected by factors such as differences in powder flowability, resulting in deviations in raw material ratios and affecting the consistency of product performance. The weighing and mixing are carried out in separate steps, requiring multiple material transfers and increasing operation time.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to a raw material weighing device for the production of concrete retarder, comprising a support frame, a placement bucket fixedly connected to the top of the support frame, a feeding box provided at the bottom of the support frame, a weighing assembly provided at the top of the feeding box, the weighing assembly comprising a weighing box fixedly connected to the top of the feeding box, a weighing plate fixedly connected to the inside of the weighing box, a dynamic weighing sensor fixedly connected to the top of the weighing plate, and a push plate provided at the top of the weighing plate, the bottom of the feeding box being connected to a conveying assembly, the conveying assembly comprising a conveying box connected to the bottom of the feeding box, a first auger provided inside the conveying box, a partition plate provided inside the conveying box, and a feeding pipe connected to one side of the conveying box.

[0007] The present invention is further configured such that a lid is provided on the top of the placement bucket, a first motor is fixedly connected to the top of the lid, and a second auger is fixedly connected to the output end of the first motor.

[0008] The present invention is further configured such that a discharge pipe is connected to the bottom of the placement bucket, a self-control valve is connected to the surface of the discharge pipe, and a flow sensor is provided on the inner wall of the discharge pipe.

[0009] The present invention is further configured such that a movable plate is fixedly connected to the bottom of the support frame, a slide rail is fixedly connected to the top of the movable plate, a pulley is slidably connected to the top of the slide rail, a fixed plate is fixedly connected to the top of the pulley, and the feeding box is fixedly connected inside the fixed plate.

[0010] The present invention is further configured such that a support plate is fixedly connected to both sides of the weighing box, a first hydraulic cylinder is fixedly connected to one side of the support plate, a connecting plate is fixedly connected to the output end of the first hydraulic cylinder, the connecting plate is fixedly connected to the push plate, a support rod is fixedly connected to one side of the support plate, a support groove is provided inside the connecting plate, and the support rod is located inside the support groove.

[0011] The present invention is further configured such that a drop pipe is connected to the bottom of the weighing box, and the bottom of the drop pipe is connected to the feeding box.

[0012] The present invention is further configured such that a drive box is fixedly connected to one side of the feeding box, a second motor is fixedly connected to one side of the drive box, a gear set is provided inside the drive box, and a stirring rod is fixedly connected inside the gear set.

[0013] The present invention is further configured such that a second hydraulic cylinder is fixedly connected to both the front and rear sides of the conveying box, the output end of the second hydraulic cylinder is fixedly connected to the partition plate, a support slide plate is fixedly connected to one side of the partition plate, a support groove adapted to the support slide plate is opened inside the conveying box, a third motor is fixedly connected to one side of the conveying box, and the output end of the third motor is fixedly connected to the first auger.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model achieves precise material feeding through closed-loop control of a dynamic weighing sensor and an automatic control valve. Raw materials enter the weighing box from the placement bucket via the discharge pipe. A flow sensor monitors the feeding amount, and the dynamic weighing sensor simultaneously collects weight data. When the weight reaches the set value, the automatic control valve immediately closes, and then the first hydraulic cylinder drives the pusher plate to push the raw material into the drop pipe. This closed-loop control reduces weighing errors, avoids human error, ensures accurate retarder proportions, and improves product performance consistency.

[0016] 2. This utility model achieves synchronous mixing through the synergistic action of the first auger and the stirring rod. The weighed raw material enters the feeding box, and the second motor drives the stirring rod to rotate, premixing the powder. The third motor drives the first auger to push the raw material upward into the feed pipe at a speed of 15-20 rpm. The auger and the stirring rod form turbulence, which significantly improves the mixing uniformity, avoids the traditional stratification problem, and the transfer and mixing are carried out simultaneously, reducing processing time.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a raw material weighing device for the production of concrete retarder.

[0020] Figure 2 This is a three-dimensional view of the discharge pipe and automatic control valve in a raw material weighing device for the production of concrete retarder.

[0021] Figure 3 This is a perspective view of the conveying components in a raw material weighing device for the production of concrete retarder.

[0022] Figure 4 This is a cross-sectional view of the conveyor box in a raw material weighing device for the production of concrete retarder.

[0023] Figure 5 This is a cross-sectional view of the weighing box in a raw material weighing device for the production of concrete retarder.

[0024] In the attached diagram: 1. Support frame; 2. Placement bucket; 3. Feeding box; 4. Weighing assembly; 401. Weighing box; 402. Weighing plate; 403. Dynamic weighing sensor; 404. Push plate; 5. Conveying assembly; 501. Conveying box; 502. First auger; 503. Divider plate; 504. Feeding pipe; 6. First motor; 7. Discharge pipe; 8. Automatic control valve; 9. Moving plate; 10. Slide rail; 11. Fixed plate; 12. Support plate; 13. First hydraulic cylinder; 14. Connecting plate; 15. Support rod; 16. Drop pipe; 17. Drive box; 18. Second motor; 19. Second hydraulic cylinder; 20. Support slide plate; 21. Third motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0027] Please see Figures 1-5 This utility model is a raw material weighing device for the production of concrete retarder, including a support frame 1, a placement bucket 2 fixedly connected to the top of the support frame 1, a feeding box 3 set at the bottom of the support frame 1, a weighing component 4 set at the top of the feeding box 3, the weighing component 4 including a weighing box 401 fixedly connected to the top of the feeding box 3, a weighing plate 402 fixedly connected inside the weighing box 401, a dynamic weighing sensor 403 fixedly connected to the top of the weighing plate 402 (the dynamic weighing sensor 403 is prior art, and will not be described in detail here, and those skilled in the art can clearly understand its working principle), and a push plate 404 set at the top of the weighing plate 402. The bottom of the feeding box 3 is connected to a conveying component 5, the conveying component 5 including a conveying box 501 connected to the bottom of the feeding box 3, a first auger 502 set inside the conveying box 501, a partition plate 503 set inside the conveying box 501, and a feeding pipe 504 connected to one side of the conveying box 501.

[0028] Specifically, through the weighing component 4, the raw material enters the weighing box 401 from the placement bucket 2 via the discharge pipe 7. The automatic control valve 8 and the flow sensor work together to control the discharge amount. The dynamic weighing sensor 403 provides real-time feedback of weight data. After the preset value is reached, the automatic control valve 8 is closed. After weighing is completed, the first hydraulic cylinder 13 pushes the push plate 404 to discharge the raw material into the loading box 3 via the drop pipe 16. Dynamic weighing and closed-loop control technology ensure the raw material ratio and avoid performance deviations caused by human error. Through the conveying component 5, the first auger 502 rotates to push the raw material along the conveying box 501. The stirring rod rotates continuously during the conveying process to break up powder agglomeration and promote the uniform dispersion of raw materials of different densities. The moving plate 9 cooperates with the slide rail 10 to move the entire conveying box 501 to the processing equipment interface to complete the raw material feeding. The first auger 502 and the stirring rod work together to avoid the stratification problem in traditional processes. The transfer and mixing are carried out simultaneously, improving production efficiency. Specific Implementation Example 2

[0030] Please see Figures 1-5Based on the first specific embodiment, the top of the placement bucket 2 is provided with a bucket lid, and a first motor 6 is fixedly connected to the top of the bucket lid. A second auger is fixedly connected to the output end of the first motor 6. The bottom of the placement bucket 2 is connected to a discharge pipe 7, and a self-control valve 8 is connected to the surface of the discharge pipe 7. The self-control valve 8 is existing technology, and this solution will not elaborate further. Those skilled in the art can clearly understand its working principle. A flow sensor is provided on the inner wall of the discharge pipe 7. The bottom of the second auger extends into the interior of the discharge pipe 7. A movable plate 9 is fixedly connected to the bottom of the support frame 1. A slide rail 10 is fixedly connected to the top of the movable plate 9. A pulley is slidably connected to the top of the slide rail 10. A fixed plate 11 is fixedly connected to the top of the pulley. The feeding box 3 is fixedly connected inside the fixed plate 11. Support plates 12 are fixedly connected to both sides of the weighing box 401. A first hydraulic cylinder 13 is fixedly connected to one side of the support plate 12. A connecting plate 14 is fixedly connected to the output end of the first hydraulic cylinder 13. The connecting plate 14 is fixedly connected to the push plate 404. A support rod 15 is fixedly connected to one side of the support plate 12. The weighing box 401 has a support groove inside, and the support rod 15 is located inside the support groove. The bottom of the weighing box 401 is connected to the drop pipe 16, and the bottom of the drop pipe 16 is connected to the feeding box 3. The feeding box 3 is fixedly connected to a drive box 17 on one side, and a second motor 18 is fixedly connected to one side of the drive box 17. The drive box 17 is equipped with a gear set, and a stirring rod is fixedly connected inside the gear set. The front and rear sides of the conveying box 501 are fixedly connected to a second hydraulic cylinder 19. The output end of the second hydraulic cylinder 19 is fixedly connected to the partition plate 503. The hydraulic cylinder is existing technology, and this solution will not elaborate on it. Moreover, those skilled in the art can clearly understand the working principle. The partition plate 503 is fixedly connected to a support slide plate 20. The conveying box 501 has a support groove inside that is adapted to the support slide plate 20. The conveying box 501 is fixedly connected to a third motor 21 on one side, and the output end of the third motor 21 is fixedly connected to the first auger 502. The motor is existing technology, and this solution will not elaborate on it. Moreover, those skilled in the art can clearly understand the working principle.

[0031] Specifically, the first motor 6 and the second auger are used to push the raw material towards the discharge pipe 7, allowing it to fall into the weighing box 401. The discharge pipe 7 and the automatic control valve 8 are used to regulate the amount of raw material falling. A flow sensor is used to detect the amount of raw material falling. The moving plate 9, slide rail 10, and pulleys are used to move the weighed raw material towards the processing equipment. The first hydraulic cylinder 13 and the connecting plate 14 are used to push the push plate 404. The support rod 15 is used to support the connecting plate 14. The limiting mechanism allows the connecting plate 14 to slide smoothly. The falling pipe 16 allows the weighed raw material to fall into the feeding box 3. The drive box 17 and the second motor 18 drive the gear set to rotate, which in turn drives the stirring rod to rotate. The stirring rod mixes the raw material falling into the feeding box 3. The second hydraulic cylinder 19 is used to push the partition plate 503 to move. The support slide plate 20 and the support groove are used to support the partition plate 503, allowing it to slide smoothly. The third motor 21 drives the first auger 502 to rotate.

[0032] The operation process of this embodiment is as follows: Different types of concrete retarder raw materials are loaded into the placement bucket 2 and the bucket lid is closed. The target weighing value and feeding sequence of each raw material are set through the external control terminal. The first motor 6 is started to drive the second auger to rotate, and the raw materials in the placement bucket 2 are evenly pushed to the discharge pipe 7. The automatic control valve 8 opens sequentially according to the preset program, and the raw materials enter the weighing box 401 through the discharge pipe 7. The flow sensor monitors the feeding amount, and the dynamic weighing sensor 403 synchronously collects the weight data. The automatic control valve 8 and the dynamic weighing sensor 403 are electrically connected to form a closed-loop control system. When the dynamic weighing sensor 403 detects that the weight has reached the preset value, the controller synchronously sends a signal to close the automatic control valve 8 and start the first hydraulic cylinder 13.

[0033] The connecting plate 14 and the push plate 404 are pushed horizontally along the track defined by the support rod 15, pushing the raw material in the weighing box 401 into the feeding box 3 through the drop pipe 16. The stirring rod in the feeding box 3 is driven by the second motor 18 to premix the raw material before it enters the conveying assembly 5, breaking up powder agglomerates. After the raw material is mixed, the second hydraulic cylinder 19 drives the partition plate 503 to move out of the conveying box 501, and the mixed raw material falls into the conveying box 501. The pulley on the top of the slide rail 10 drives the fixing plate 11 to move to the left. The fixing plate 11 drives the feeding box 3 to move to the left to the processing equipment. The third motor 21 drives the first auger 502 to rotate. The first auger 502 pushes the raw material to the feeding pipe 504, and then conveys it to the external processing equipment through the feeding pipe 504.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A raw material weighing device for the production of concrete retarder, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the top of the storage bucket (2), and the support frame (1) is provided with a feeding box (3) at the bottom. The top of the feeding box (3) is provided with a weighing component (4), which includes a weighing box (401) fixedly connected to the top of the feeding box (3), a weighing plate (402) fixedly connected inside the weighing box (401), a dynamic weighing sensor (403) fixedly connected to the top of the weighing plate (402), and a push plate (404) provided on the top of the weighing plate (402). The bottom of the feeding box (3) is connected to a conveying assembly (5). The conveying assembly (5) includes a conveying box (501) connected to the bottom of the feeding box (3), a first auger (502) disposed inside the conveying box (501), a partition plate (503) disposed inside the conveying box (501), and a feeding pipe (504) connected to one side of the conveying box (501).

2. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, The top of the placement bucket (2) is provided with a bucket lid, and a first motor (6) is fixedly connected to the top of the bucket lid. A second auger is fixedly connected to the output end of the first motor (6).

3. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, The bottom of the placement bucket (2) is connected to a discharge pipe (7), the surface of the discharge pipe (7) is connected to a self-control valve (8), and a flow sensor is provided on the inner wall of the discharge pipe (7).

4. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, The support frame (1) is fixedly connected to a movable plate (9) at the bottom, and a slide rail (10) is fixedly connected to the top of the movable plate (9). A pulley is slidably connected to the top of the slide rail (10), and a fixed plate (11) is fixedly connected to the top of the pulley. The feeding box (3) is fixedly connected inside the fixed plate (11).

5. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, The weighing box (401) is fixedly connected to both sides of a support plate (12). A first hydraulic cylinder (13) is fixedly connected to one side of the support plate (12). A connecting plate (14) is fixedly connected to the output end of the first hydraulic cylinder (13). The connecting plate (14) is fixedly connected to the push plate (404). A support rod (15) is fixedly connected to one side of the support plate (12). A support groove is provided inside the connecting plate (14). The support rod (15) is located inside the support groove.

6. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, The weighing box (401) has a drop pipe (16) at the bottom, and the bottom of the drop pipe (16) is connected to the feeding box (3).

7. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, A drive box (17) is fixedly connected to one side of the feeding box (3), and a second motor (18) is fixedly connected to one side of the drive box (17). A gear set is provided inside the drive box (17), and a stirring rod is fixedly connected inside the gear set.

8. The raw material weighing device for producing concrete retarder according to claim 1, characterized in that, The front and rear sides of the conveyor box (501) are fixedly connected to a second hydraulic cylinder (19). The output end of the second hydraulic cylinder (19) is fixedly connected to the partition plate (503). A support slide plate (20) is fixedly connected to one side of the partition plate (503). A support slide groove adapted to the support slide plate (20) is opened inside the conveyor box (501). A third motor (21) is fixedly connected to one side of the conveyor box (501). The output end of the third motor (21) is fixedly connected to the first auger (502).

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