Premix discharging system of concrete mixing plant

Abstract

The utility model relates to the technical field of concrete pre-mixing materials, in particular to a concrete mixing plant pre-mixing material discharging system which comprises a box body and a plurality of primary feeding bins arranged on the upper surface of the box body, quantity control pipes are installed on the upper surfaces of the primary feeding bins, and feeding hoppers are installed at the ends, away from the primary feeding bins, of the quantity control pipes. A fine adjustment spiral shaft is installed in the volume control pipe, a connecting sealing piece is installed at one end of the fine adjustment spiral shaft, a rotating rod is installed on one side of the connecting sealing piece, an overturning plate is installed in the primary feeding bin, and a gravity sensor is installed on the lower surface of the overturning plate. The premixed solid enters the surface of an overturning plate mounted in the primary feeding bin, and the weight of the premixed solid accumulated on the overturning plate is detected through a centralized control module and a gravity sensor, so that the premixed solid enters the box body after reaching a rated weight value, and precise proportioning and mixing of concrete are completed; and the mixing precision of the premixed material of the concrete is improved.

Description

Technical Field

[0001] This utility model relates to a premixed material feeding system for a concrete mixing plant, and particularly to a premixed material feeding system for a concrete mixing plant, belonging to the field of premixed concrete technology. Background Technology

[0002] Ready-mixed concrete refers to a concrete mixture made of cement, aggregates, water, and, as needed, admixtures and mineral admixtures, mixed in a certain proportion at a batching plant, and then sold and transported to the place of use within a specified time by transport vehicles.

[0003] In the production and operation of concrete mixing plants, the performance of the premixed feed system has a crucial impact on the production quality, efficiency, and cost of concrete. When mixing premixed concrete in the mixing plant, manual measurement and weighing of the premixed materials are often used. This method of premixing is quite inefficient and consumes a lot of labor and time costs. Furthermore, the premixed feed systems currently available on the market often suffer from problems such as uneven feeding, easy blockage, inaccurate material measurement, and low degree of automation, making it difficult to meet the stringent requirements of modern large-scale, high-precision concrete production.

[0004] Therefore, it is urgent to improve the premixed material feeding system of concrete batching plants to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a premixed concrete feeding system for a concrete mixing plant, which strictly controls the metering of premixed concrete through initial feeding and control pipes, thereby improving the mixing accuracy of the premixed concrete.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a housing and several initial feed chambers disposed on the upper surface of the housing; a control tube is installed on the upper surface of the initial feed chamber; a feed hopper is installed at the end of the control tube away from the initial feed chamber; a fine-tuning screw shaft is installed inside the control tube; a connecting seal is installed at one end of the fine-tuning screw shaft; a rotating rod is installed on one side of the connecting seal; a tilting plate is installed inside the initial feed chamber; and a gravity sensor is installed on the lower surface of the tilting plate.

[0007] Preferably, the upper surface of the housing is provided with a plurality of feeding slots, the initial feeding chamber is fixedly installed on the upper surface of the feeding slots, one end of the measuring tube passes through the initial feeding chamber and extends into its interior, the feeding hopper is fixedly installed on the other end of the measuring tube, a first servo motor is installed on one side of the measuring tube, the output end of the first servo motor is rotatably mounted with the rotating rod, one end of the rotating rod passes through the measuring tube and the connecting seal and extends into the interior of the measuring tube to be fixedly installed with the fine-tuning screw shaft.

[0008] Preferably, the connecting seal is fixedly installed on one side of the measuring tube, and the fine-tuning screw shaft is rotatably installed inside the measuring tube under the drive of the rotating rod. The connecting seal seals the connection between the rotating rod and the measuring tube.

[0009] Preferably, an electric control rod is rotatably installed inside the initial entry chamber, the flipping plate is fixedly installed on the surface of the electric control rod, the gravity sensor is fixedly installed on the lower surface of the flipping plate, a centralized control module is fixedly installed on one side surface of the initial entry chamber, and a fixing component is installed on the lower surface of the control tube.

[0010] Preferably, a motor compartment is installed on one side surface of the housing, and a second servo motor is installed inside the motor compartment. The output end of the second servo motor passes through the housing and extends into its interior. A coarse adjustment screw shaft is installed inside the housing. Two water inlet pipes are installed on the upper surface of the housing, and two material outlets are installed on the lower surface of the housing.

[0011] Preferably, the motor housing is fixedly installed on one side surface of the housing, the second servo motor is fixedly installed inside the motor housing, the output end of the second servo motor passes through the housing and extends into its interior to be fixedly installed with the coarse adjustment screw shaft, and the coarse adjustment screw shaft is rotated and installed inside the housing under the drive of the second servo motor.

[0012] Preferably, one end of the water inlet pipe passes through the box body and is sealed and fixedly disposed on the upper surface of the box body, the discharge funnel is fixedly installed on the lower surface of the box body, and a control panel is installed on one side surface of the box body.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. Cement, sand, and gravel are fed into the control tube through the feed hopper. Driven by the first servo motor, the rotating rod rotates inside the connecting seal. Driven by the fine-tuning screw shaft, the mixed solids are pushed into the control tube and enter the surface of the tilting plate installed inside the initial feed chamber.

[0015] 2. The weight of the premixed solids accumulated on the tilting plate is detected by the centralized control module and gravity sensor. When the accumulated premixed solids reach the rated weight value of the centralized control module, the gravity sensor sends an electrical signal to the centralized control module. Under the action of the centralized control module, the first servo motor stops working and the electric control lever is activated by the electrical signal, causing the tilting plate located inside the initial loading chamber to tilt downwards. This allows the premixed solids that have reached the rated weight value to enter the interior of the box. Through the cooperation of the coarse adjustment screw shaft and the water inlet pipe, the precise proportioning and mixing of concrete is completed, thereby improving the mixing accuracy of the premixed concrete. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a three-dimensional overall structural diagram of a premixed material feeding system for a concrete mixing plant according to the present invention;

[0018] Figure 2 This is a structural diagram of the internal structure of the box of a premixed material feeding system for a concrete mixing plant according to the present invention.

[0019] Figure 3 This is a diagram showing the internal structure of the control tube of a premixed material feeding system for a concrete mixing plant according to this utility model.

[0020] Figure 4 This is a diagram showing the internal structure of the initial feeding silo of a premixed material feeding system for a concrete mixing plant according to this utility model.

[0021] In the diagram: 1. Box body; 2. Discharge hopper; 3. Motor compartment; 4. Control panel; 5. Water inlet pipe; 6. Initial feed compartment; 7. Electric control rod; 8. Measuring tube; 9. Feed hopper; 10. Fixing component; 11. First servo motor; 12. Second servo motor; 13. Coarse adjustment screw shaft; 14. Feed chute; 15. Rotating rod; 16. Fine adjustment screw shaft; 17. Connecting seal; 20. Centralized control module; 21. Tilting plate; 22. Gravity sensor. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] like Figure 1 , Figure 3 as well as Figure 4As shown, a premixed concrete feeding system for a concrete mixing plant includes a housing 1 and several initial feed bins 6 disposed on the upper surface of the housing 1. A control tube 8 is installed on the upper surface of each initial feed bin 6. A feed hopper 9 is installed at the end of the control tube 8 furthest from the initial feed bin 6. A fine-tuning screw shaft 16 is installed inside the control tube 8. A connecting seal 17 is installed at one end of the fine-tuning screw shaft 16, and a rotating rod 15 is installed on one side of the connecting seal 17. A tilting plate 21 is installed inside the initial feed bin 6, and a gravity sensor 22 is installed on the lower surface of the tilting plate 21. During premixed concrete mixing, the premixed concrete needs to be mixed in a predetermined ratio, for example, the required premixed concrete for 1 cubic meter of concrete is... The load consists of 300 kg of cement, 180 kg of water, 690 kg of sand, and 1260 kg of gravel. Therefore, the operator needs to use the centralized control module 20 to set the rated values ​​for the gravity sensor 22 and the first servo motor 11, which is fixed to the fixture 10. The operator then turns on the first servo motor 11 to rotate the fine-tuning screw shaft 16 inside the control tube 8, allowing the cement, sand, and gravel to enter the control tube 8 through the feed hopper 9. Both the fine-tuning screw shaft 16 and the control tube 8 itself are made of high-strength alloy material, possessing high resistance to deformation, ensuring that the gravel, sand, or other hard solid materials are contained within the control tube 8. The internal conveying process will not damage the conveying components. Driven by the first servo motor 11, the rotating rod 15 rotates inside the connecting seal 17. The connecting seal 17 ensures the sealing of the connection between the control tube 8 and the rotating rod 15, ensuring that the inside of the control tube 8 is a closed space. The fine-tuning screw shaft 16 installed at the other end of the rotating rod 15 pushes the premixed solids into the control tube 8 through the threads on its surface until the premixed solids enter the surface of the tilting plate 21 installed inside the initial feed chamber 6 through the control tube 8. Through the continuous conveying of premixed solids, the gravity sensor 22 located on the lower surface of the tilting plate 21 will monitor the premixed solids that have accumulated on the tilting plate 21. During weight detection, the gravity sensor 22 tare the weight of the tilting plate 21. When the accumulated premixed solids reach the rated weight value of the centralized control module 20, the gravity sensor 22 sends an electrical signal to the centralized control module 20. Under the action of the centralized control module 20, the first servo motor 11 stops working and the electric control lever 7 is activated by the electrical signal, causing the tilting plate 21 located inside the initial feed hopper 6 to tilt downwards. This allows the premixed solids that have reached the rated weight value to enter the interior of the box 1. Through the cooperation of the coarse adjustment screw shaft 13 and the water inlet pipe 5, the precise proportioning and mixing of concrete is completed, thereby improving the mixing accuracy of the premixed concrete.

[0024] Furthermore, such as Figures 1-4As shown, the upper surface of the box 1 is provided with several feeding slots 14. The initial feeding chamber 6 is fixedly installed on the upper surface of the feeding slot 14. One end of the control tube 8 passes through the initial feeding chamber 6 and extends into its interior. The feeding hopper 9 is fixedly installed on the other end of the control tube 8. A first servo motor 11 is installed on one side of the control tube 8. A rotating rod 15 is rotatably installed at the output end of the first servo motor 11. One end of the rotating rod 15 passes through the control tube 8 and the connecting seal 17 and extends into the interior of the control tube 8 to be fixedly installed with the fine adjustment screw shaft 16. The connecting seal 17 is fixedly installed on one side of the control tube 8. The fine adjustment screw shaft 16 is rotatably installed inside the control tube 8 under the drive of the rotating rod 15. The connecting seal 17 seals the connection between the rotating rod 15 and the control tube 8. Through the feeding slots 14, the premixed material prepared in the initial feeding chamber 6 can enter the interior of the box 1 for centralized mixing.

[0025] Furthermore, such as Figure 1 , Figure 3 as well as Figure 4 As shown, an electric control rod 7 is rotatably installed inside the initial feeding chamber 6. A tilting plate 21 is fixedly installed on the surface of the electric control rod 7. A gravity sensor 22 is fixedly installed on the lower surface of the tilting plate 21. A centralized control module 20 is fixedly installed on one side surface of the initial feeding chamber 6. A fixing part 10 is installed on the lower surface of the control tube 8. The electric control rod 7 and the gravity sensor 22 are electrically connected to the centralized control module 20, which can detect the weight of the premixed material stacked above the tilting plate 21 in real time. The electrical signal transmission speed of the gravity sensor 22 needs to be set a few seconds in advance to avoid the first servo motor 11 not being able to stop in time after the gravity sensor 22 detects that the weight of the premixed material has reached the rated value, which would cause the weight of the premixed material to be inaccurately controlled because the electrical signal transmission takes a certain amount of time. This ensures the accuracy of the premixed material feeding to the greatest extent.

[0026] Furthermore, such as Figures 1-2As shown, a motor compartment 3 is installed on one side surface of the housing 1. A second servo motor 12 is installed inside the motor compartment 3. The output end of the second servo motor 12 passes through the housing 1 and extends into its interior. A coarse adjustment screw shaft 13 is installed inside the housing 1. Two water inlet pipes 5 are installed on the upper surface of the housing 1, and two discharge funnels 2 are installed on the lower surface of the housing 1. The motor compartment 3 is fixedly installed on one side surface of the housing 1. The second servo motor 12 is fixedly installed inside the motor compartment 3. The output end of the second servo motor 12 passes through the housing 1 and extends into its interior, where it is fixedly installed with the coarse adjustment screw shaft 13. The coarse adjustment screw shaft 13 is rotated and installed inside the housing 1 under the drive of the second servo motor 12. One end of the water inlet pipe 5 passes through the housing 1 and is sealed and fixedly installed inside the housing. The upper surface of body 1, the discharge funnel 2 is fixedly installed on the lower surface of body 1, the control panel 4 and motor compartment 3 are installed on one side surface of body 1, which can protect the second servo motor 12. The rated clean water is injected into the body 1 through the water inlet pipe 5. After the cement, sand and gravel are mixed, they enter the body 1. The control panel 4 selects the rated mixing time according to the concrete type required by the ratio and controls the second servo motor 12 to start. Driven by the second servo motor 12, the coarse adjustment screw shaft 13 mixes the cement, sand, gravel and clean water inside the body 1. After the rated mixing time, the coarse adjustment screw shaft 13 stops rotating, and the operator opens the discharge funnel 2 to collect the mixed concrete.

[0027] In this embodiment, as Figures 1-4 As shown in this embodiment, the principle of a premixed feed feeding system for a concrete mixing plant is as follows:

[0028] When mixing premixed concrete, the premixed concrete needs to be mixed in a specified ratio. For example, 1 cubic meter of concrete requires 300 kg of cement, 180 kg of water, 690 kg of sand, and 1260 kg of gravel. Therefore, the operator needs to use the centralized control module 20 to set the specified values ​​for the gravity sensor 22 and the first servo motor 11, which is installed and fixed on the fixing part 10, and turn on the first servo motor 11 to rotate the fine-tuning screw shaft 16 inside the control tube 8, thereby mixing the cement, water, sand, and gravel separately. Sand and gravel enter the control tube 8 through the feed hopper 9. Both the fine-tuning screw shaft 16 and the control tube 8 itself are made of high-strength alloy material, possessing high resistance to deformation. This ensures that gravel, sand, or other hard solid materials will not damage the conveying components when being transported inside the control tube 8. Driven by the first servo motor 11, the rotating rod 15 rotates inside the connecting seal 17. The connecting seal 17 ensures the sealing of the connection between the control tube 8 and the rotating rod 15, guaranteeing the safety of the material inside the control tube 8. The unit is a closed space. The fine-tuning screw shaft 16 installed at the other end of the rotating rod 15 pushes the premixed solids into the control tube 8 through the threads on its surface until the premixed solids enter the surface of the tilting plate 21 installed inside the initial feed hopper 6. Through the continuous feeding of premixed solids, the gravity sensor 22 located on the lower surface of the tilting plate 21 will detect the weight of the premixed solids accumulated on the tilting plate 21. The gravity sensor 22 will tare the weight of the tilting plate 21. When the accumulated premixed solids reach the centralized control After the rated weight value of module 20 is reached, gravity sensor 22 sends an electrical signal to centralized control module 20. Under the action of centralized control module 20, the first servo motor 11 stops working and the electric control lever 7 is activated by the electrical signal, causing the flip plate 21 located inside the initial feed chamber 6 to flip downwards, so that the premixed solid material that has reached the rated weight value enters the interior of box 1. Through the cooperation of coarse adjustment screw shaft 13 and water inlet pipe 5, the precise proportioning and mixing of concrete is completed, so as to improve the mixing accuracy of concrete premix.

[0029] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0031] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A premixed feed system for a concrete mixing plant, comprising a housing (1) and a plurality of initial feed bins (6) disposed on the upper surface of the housing (1), characterized in that: A control tube (8) is installed on the upper surface of the initial feed chamber (6). A feed hopper (9) is installed at the end of the control tube (8) away from the initial feed chamber (6). A fine adjustment screw shaft (16) is installed inside the control tube (8). A connecting seal (17) is installed at one end of the fine adjustment screw shaft (16). A rotating rod (15) is installed on one side of the connecting seal (17). A tilting plate (21) is installed inside the initial feed chamber (6). A gravity sensor (22) is installed on the lower surface of the tilting plate (21).

2. The pre-mixed feed feeding system for a concrete mixing plant according to claim 1, characterized in that: The upper surface of the housing (1) is provided with several feeding slots (14). The initial feeding chamber (6) is fixedly installed on the upper surface of the feeding slot (14). One end of the control tube (8) passes through the initial feeding chamber (6) and extends into its interior. The feeding hopper (9) is fixedly installed on the other end of the control tube (8). A first servo motor (11) is installed on one side of the control tube (8). The output end of the first servo motor (11) is rotatably installed with the rotating rod (15). One end of the rotating rod (15) passes through the control tube (8) and the connecting seal (17) and extends into the interior of the control tube (8) to be fixedly installed with the fine adjustment screw shaft (16).

3. The pre-mixed feed feeding system for a concrete mixing plant according to claim 2, characterized in that: The connecting seal (17) is fixedly installed on one side of the measuring tube (8). The fine adjustment screw shaft (16) is rotated and installed inside the measuring tube (8) under the drive of the rotating rod (15). The connecting seal (17) seals the connection between the rotating rod (15) and the measuring tube (8).

4. The pre-mixed feed feeding system for a concrete mixing plant according to claim 1, characterized in that: An electric control rod (7) is rotatably installed inside the initial entry chamber (6). The flip plate (21) is fixedly installed on the surface of the electric control rod (7). The gravity sensor (22) is fixedly installed on the lower surface of the flip plate (21). A centralized control module (20) is fixedly installed on one side surface of the initial entry chamber (6). A fixing piece (10) is installed on the lower surface of the control tube (8).

5. A pre-mixed feed feeding system for a concrete mixing plant according to claim 1, characterized in that: A motor compartment (3) is installed on one side surface of the box (1). A second servo motor (12) is installed inside the motor compartment (3). The output end of the second servo motor (12) passes through the box (1) and extends into its interior. A coarse adjustment screw shaft (13) is installed inside the box (1). Two water inlet pipes (5) are installed on the upper surface of the box (1). Two discharge funnels (2) are installed on the lower surface of the box (1).

6. The pre-mixed feed feeding system for a concrete mixing plant according to claim 5, characterized in that: The motor compartment (3) is fixedly installed on one side surface of the housing (1). The second servo motor (12) is fixedly installed inside the motor compartment (3). The output end of the second servo motor (12) passes through the housing (1) and extends into its interior to be fixedly installed with the coarse adjustment screw shaft (13). The coarse adjustment screw shaft (13) is rotated and installed inside the housing (1) under the drive of the second servo motor (12).

7. A pre-mixed feed feeding system for a concrete mixing plant according to claim 5, characterized in that: One end of the water inlet pipe (5) passes through the box body (1) and is sealed and fixed on the upper surface of the box body (1). The discharge funnel (2) is fixedly installed on the lower surface of the box body (1). A control panel (4) is installed on one side surface of the box body (1).

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