An automatic material distribution device for a prefabricated water-stabilized mixing machine

By designing an automatic material distribution device for prefabricated water-stabilized concrete mixing plants, the problem of segregation during the unloading process of water-stabilized concrete was solved, achieving uniform distribution of finished materials and high-quality base construction.

CN117183105BActive Publication Date: 2025-12-02SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
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Patent Information

Application Number
CN202311385244.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-23
Publication Date
2025-12-02
Estimated Expiration
2043-10-23

AI Technical Summary

Technical Problem

Segregation is prone to occur during the unloading process of water-stabilized concrete, which affects the quality of base course construction.

Method used

Design an automatic material distribution device for a prefabricated water-stabilized mixing machine, including a support frame, a material distribution mechanism and a conveying mechanism. By controlling the movement speed of the material distribution mechanism and the lifting and lowering of the discharge port, the finished material can be evenly distributed in layers.

Benefits of technology

This improved the uniformity of unloading, prevented segregation, ensured the quality of the finished material, and guaranteed the quality of the base construction.

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Abstract

This application provides an automatic material distribution device for a prefabricated water-stabilized concrete mixing plant, relating to the field of material conveying technology. It includes a support frame, a material distribution mechanism, and a conveying mechanism. The support frame is connected to the ground; the material distribution mechanism is slidably connected to the support frame, and its discharge port can rise and fall relative to the support frame; the conveying mechanism cooperates with the material distribution mechanism to receive and convey the finished mixture to the material distribution mechanism; the material distribution mechanism is used to layer the finished mixture within the cargo compartment. The application of this material distribution device enables quality control of water-stabilized concrete during unloading and loading, effectively improving the segregation issues that occur during unloading of water-stabilized concrete in existing technologies, controlling the quality of the finished material, and ensuring the quality of subsequent base course construction.
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Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and more specifically, to an automatic material distribution device for a prefabricated water-stabilized mixing machine. Background Technology

[0002] During the unloading process of water-stabilized concrete, segregation of the water-stabilized mixture is prone to occur due to site limitations and the operation of transport vehicle drivers. The base course, as the main load-bearing layer of the highway structure, plays a crucial and undeniable role in all structural layers of highway engineering. If the quality control of the water-stabilized mixture during loading is not adequate, it is difficult to ensure that the construction quality of the cement-stabilized aggregate base course meets the requirements of construction technical specifications and design documents, leading to problems such as aggregate segregation, poor flatness, and insufficient compaction.

[0003] The inventors discovered the following drawbacks in the existing technology for unloading base concrete materials:

[0004] Segregation is prone to occur during the unloading process of water-stabilized concrete, which affects the construction quality of the base layer. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic material distribution device for prefabricated water-stabilized concrete mixing machines, which can control the quality of water-stabilized concrete during the unloading and loading process, effectively improve the segregation situation that occurs during the unloading process of water-stabilized concrete in the prior art, control the quality of finished materials, and ensure the quality of subsequent base course construction.

[0006] The embodiments of the present invention are implemented as follows:

[0007] This invention provides an automatic material distribution device for a prefabricated water-stabilized mixing machine, comprising:

[0008] The system includes a support frame, a fabric spreading mechanism, and a conveying mechanism. The support frame is connected to the ground. The fabric spreading mechanism is slidably connected to the support frame, and its outlet can be raised or lowered relative to the support frame. The conveying mechanism works in conjunction with the fabric spreading mechanism to receive and convey the finished mixture to the fabric spreading mechanism. The fabric spreading mechanism is used to spread the finished mixture in layers within the cargo compartment.

[0009] In an optional embodiment, the support frame includes support legs, a load-bearing frame, a protective frame, and a ladder. The load-bearing frame is installed on the top of the support legs, and a guide rail is provided on the load-bearing frame, on which the fabric-making mechanism travels. The protective frame and the ladder are both installed on the support legs, and the ladder is located within the area enclosed by the protective frame.

[0010] In an optional embodiment, the fabric mechanism includes a traveling driver, a lifting driver, a base plate, a foldable fabric bag, and a shaping ring plate. The traveling driver is mounted on the support frame, and the lifting driver is mounted on the base plate. The base plate is connected to the traveling driver and is used to reciprocate relative to the support frame in a first direction under the drive of the traveling driver. A material discharge port is provided on the base plate. One end of the foldable fabric bag is connected to the base plate and communicates with the material discharge port, and the other end is connected to the shaping ring plate. The shaping ring plate has an outlet communicating with the foldable fabric bag. The lifting driver is connected to the shaping ring plate and is used to drive the shaping ring plate to rise and fall in a second direction that has an angle with the first direction, thereby folding or unfolding the foldable fabric bag.

[0011] In an optional embodiment, the support frame is provided with a first limiting member and a second limiting member arranged at intervals in the first direction, and the substrate travels between the first limiting member and the second limiting member.

[0012] In an optional embodiment, the base plate is provided with a brakeable set of wheels that travel on the support frame.

[0013] In an optional embodiment, the lifting drive includes a lifting motor, multiple wiring wheels, and multiple pull ropes. The lifting motor is mounted on the base plate, the multiple wiring wheels are all mounted on the base plate and arranged around the folded fabric bag, one end of each of the multiple pull ropes converges and connects to the lifting motor, the multiple pull ropes respectively pass around the multiple wiring wheels and connect to the shaping ring plate, and the connection positions of the multiple pull ropes to the shaping ring plate are arranged at intervals in the circumferential direction of the shaping ring plate.

[0014] In an optional embodiment, the fabric feeding mechanism further includes a material guiding mechanism, which includes a material guiding bin and multiple material guiding plates. The material guiding bin is fixed to the support frame. The multiple material guiding plates are arranged sequentially and adjacent material guiding plates are slidably connected. One of the multiple material guiding plates is rotatably connected to the material guiding bin, and the other of the multiple material guiding plates is rotatably connected to the base plate. The material guiding bin is used to receive the finished mixture conveyed from the conveying mechanism, and the multiple material guiding plates cooperate to guide the finished mixture to the discharge port.

[0015] In an optional embodiment, a discharge port is provided at the bottom of the guide hopper, and a flow plate is provided on the guide plate rotatably connected to the guide hopper. The flow plate is located at the discharge port and can rotate relative to the discharge port to reduce the flow rate of the discharge port when the substrate is close to the guide hopper and increase the flow rate of the discharge port when the substrate is far away from the guide hopper.

[0016] In an optional embodiment, the conveying mechanism includes a conveyor belt.

[0017] In an optional embodiment, the conveying mechanism further includes a conveying hopper for conveying the finished mixture onto the conveyor belt.

[0018] The beneficial effects of the embodiments of the present invention are:

[0019] In summary, the prefabricated water-stabilized mixing machine automatic material distribution device provided in this embodiment operates by parking the transport vehicle at the position corresponding to the supporting frame, ensuring that the transport vehicle's cargo box can receive the material distributed from the material distribution mechanism. The mixed water-stabilized finished material is then temporarily stored in the original mixing machine's storage hopper. After the vehicle is parked in the designated area, the storage hopper valve is opened, and the finished material is added to the conveying mechanism. Once the conveying mechanism is activated, it automatically drops the material onto the material distribution mechanism. The material distribution mechanism then starts, reciprocating and evenly distributing the finished material into the cargo box.

[0020] Furthermore, during the conveyor system's operation of transporting finished materials, the fabric distribution mechanism also activates, causing the conveyor belt to reciprocate back and forth relative to the supporting frame. Simultaneously, the fabric distribution mechanism slowly rises according to the speed of its reciprocating motion. This means that the position and height of the finished material falling through the fabric distribution mechanism continuously change, allowing the finished material to be filled into the cargo box layer by layer from front to back and from bottom to top. By controlling the movement speed of the fabric distribution mechanism, the thickness of each filling can be controlled, thereby improving the uniformity of unloading. In other words, the fabric distribution mechanism can reciprocate back and forth relative to the cargo box, and its discharge port can cause the fabric bag to reciprocate up and down relative to the cargo box. For example, in the initial state, the material drop edge of the fabric distribution mechanism is aligned with the front side of the cargo box. During the fabric distribution process, the fabric distribution mechanism moves at a constant speed from front to back while the fabric bag rises slowly and evenly from bottom to top. The material can gradually fill the cargo box from front to back and from bottom to top. When it moves to the set position at the rear of the cargo box, the fabric distribution mechanism moves in the opposite direction, that is, the fabric distribution mechanism changes direction and moves from back to front. The material dropped by the fabric distribution mechanism gradually fills the cargo box from back to front. In this way, layer-by-layer loading is achieved, the material is evenly distributed, and segregation is not likely to occur. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the automatic material distribution device for the assembled water-stabilized mixing machine according to an embodiment of the present invention.

[0023] Figure 2 This is a structural schematic diagram from another perspective of the automatic material distribution device for the assembled water-stabilized mixing machine according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the fabric mechanism according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a modified fabric mechanism according to an embodiment of the present invention.

[0026] icon:

[0027] 100-Support frame; 110-Support foot; 120-Bearing frame; 130-Protective frame; 140-Ladder; 150-Guide rail; 160-First limiting component; 170-Second limiting component; 200-Fabricating mechanism; 210-Traveling drive; 220-Lifting drive; 221-Lifting motor; 222-Wire threading wheel; 223-Pull rope; 230-Base plate; 240-Foldable fabric bag; 250-Shaping ring plate; 260-Walking wheel set; 270-Guiding mechanism; 271-Guiding bin; 2711-Discharge port; 272-Guiding plate; 273-Flow plate; 274-Elastic component; 275-Actuating rod; 300-Conveying mechanism; 310-Conveyor belt; 320-Hopper; 400-Weighing body. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Currently, the finished water-stabilized aggregate needs to be transported from the mixing plant to the construction site by truck. The process involves loading the aggregate from the mixing plant into the truck's cargo compartment using the hopper 320 on the mixer – a process known in the industry as unloading and loading. In existing technology, the positions of the hopper 320 and the cargo compartment are relatively fixed during unloading and loading. Typically, the hopper 320 is raised to a position directly above the center of the cargo compartment. The material falling from the hopper 320 lands at a fixed point in the cargo compartment. As the amount of material entering the cargo compartment increases, it forms a cone-shaped pile, gradually sliding down from the top to the sides. During this process, segregation of the water-stabilized aggregate is likely to occur, leading to a decline in its quality and hindering subsequent paving work.

[0035] In view of this, the designers have provided an automatic material distribution device for a prefabricated water-stabilized mixing machine, which makes the material distribution more uniform during the unloading and loading process, reduces the likelihood of segregation, and results in high-quality finished products.

[0036] Please combine Figures 1-4In this embodiment, the automatic material distribution device of the prefabricated water-stabilized mixing machine includes a support frame 100, a material distribution mechanism 200, and a conveying mechanism 300. The support frame 100 is used to connect to the ground; the material distribution mechanism 200 is slidably connected to the support frame 100, and the discharge port of the material distribution mechanism 200 can be raised and lowered relative to the support frame 100; the conveying mechanism 300 cooperates with the material distribution mechanism 200 to receive and transport the finished mixture to the material distribution mechanism 200; the material distribution mechanism 200 is used to distribute the finished mixture in layers in the cargo box.

[0037] Based on the above, the working principle of the automatic material distribution device for the prefabricated water-stabilized mixing machine provided in this embodiment is as follows:

[0038] During operation, the transport vehicle is parked at the position corresponding to the support frame 100, ensuring that the vehicle's cargo box can receive the material laid down from the material distribution mechanism 200. The mixed and stabilized finished material is then temporarily stored in the original mixing machine's storage hopper 320. After the vehicle is parked within the designated area, the valve of the storage hopper 320 is opened, and the finished material is added to the conveying mechanism 300. Once the conveying mechanism 300 is activated, it automatically pulls the material down onto the material distribution mechanism 200. The material distribution mechanism 200 then starts, repeatedly and evenly distributing the finished material into the cargo box.

[0039] Furthermore, during the process of conveying finished materials by the conveying mechanism 300, the fabric distribution mechanism 200 is activated, driving the conveyor belt 310 to reciprocate back and forth relative to the supporting frame 100. Simultaneously, the fabric distribution mechanism 200 slowly rises according to the speed of its reciprocating motion. This means that the position and height of the finished materials falling through the fabric distribution mechanism 200 continuously change, allowing the finished materials to be filled into the cargo box layer by layer from front to back and from bottom to top. By controlling the movement speed of the fabric distribution mechanism 200, the thickness of each filling can be controlled, thereby improving the uniformity of unloading. In other words, the fabric distribution mechanism 200 can reciprocate back and forth relative to the cargo box, and the discharge port of the fabric distribution mechanism 200 can drive the fabric bag to reciprocate up and down relative to the cargo box. For example, in the initial state, the material dropping edge of the material distribution mechanism 200 is aligned with one side of the front of the cargo box. During the material distribution process, the material distribution mechanism 200 moves at a constant speed from front to back while the material bag rises slowly and evenly from bottom to top. The material can gradually fill the cargo box from front to back and from bottom to top. When it moves to the set position at the rear of the cargo box, the material distribution mechanism 200 moves in the opposite direction, that is, the material distribution mechanism 200 changes direction and moves from back to front. The material dropped by the material distribution mechanism 200 gradually fills the cargo box from back to front. In this way, layer-by-layer loading is achieved, the material is evenly distributed, and segregation is not likely to occur.

[0040] The following embodiments illustrate the detailed mechanism of the automatic mixing and spreading device for the prefabricated water-stabilized mixing machine provided in this application by way of example.

[0041] Please combine Figure 1 and Figure 2 In this embodiment, optionally, the support frame 100 includes support legs 110, a load-bearing frame 120, a protective frame 130, and a ladder 140. The load-bearing frame 120 is installed on top of the support legs 110, and guide rails 150 are provided on the load-bearing frame 120. There can be two guide rails 150, arranged parallel and spaced apart, each guide rail 150 being a main linear guide rail 150 extending in a first direction. The fabric laying mechanism 200 can travel along the extending direction of the guide rails 150 to achieve reciprocating fabric laying. Both the protective frame 130 and the ladder 140 are installed on the support legs 110, with the ladder 140 located within the area enclosed by the protective frame 130. Workers can use the ladder 140 to climb to the top of the support frame 100, facilitating observation of the fabric laying process and timely adjustment of the fabric laying strategy. This prevents the finished mixture from segregating and improves the quality of the fabric. It should be understood that the support frame 100 can be constructed by splicing metal parts, for example, by connecting multiple metal parts using welding, snap-fit, or other methods. During actual operation, the support legs 110 of the support frame 100 are fixed to the ground, providing stability. A passageway for the transport vehicle is formed between the support legs 110, and a weighing scale 400 can be installed at the bottom of the passageway to obtain the weight of the materials transported by the vehicle. That is, when the transport vehicle travels empty onto the weighing scale 400, an initial weight is obtained; after the finished material enters the cargo compartment of the transport vehicle, a second weight is obtained. The difference between the second weight and the initial weight indicates the weight of the finished mixture in the cargo compartment. When the transport vehicle travels onto the weighing scale 400, it is positioned below the load-bearing frame 120. The hollow area of ​​the load-bearing frame 120 is directly opposite the cargo compartment, and the hollow area is larger than the cargo compartment, minimizing the impact on the fabric.

[0042] In this embodiment, optionally, the fabric-making mechanism 200 includes a traveling driver 210, a lifting driver 220, a base plate 230, a foldable fabric bag 240, and a shaping ring plate 250. The traveling driver 210 can be a winch, and there can be two traveling drivers 210, respectively arranged on both sides of the support frame 100 in the first direction. The two traveling drivers 210 cooperate to pull the base plate 230 to reciprocate in the first direction. Specifically, the lifting driver 220 is mounted on the base plate 230, and the base plate 230 is connected to the traveling driver 210 for reciprocating sliding relative to the support frame 100 in the first direction under the drive of the traveling driver 210. The substrate 230 is provided with a material discharge port; one end of the foldable fabric bag 240 is connected to the substrate 230 and communicates with the material discharge port, and the other end is connected to the shaping ring plate 250. The shaping ring plate 250 has a material outlet communicating with the foldable fabric bag 240; the lifting driver 220 is connected to the shaping ring plate 250 and is used to drive the shaping ring plate 250 to rise and fall in a second direction that has an angle with the first direction, so that the foldable fabric bag 240 is folded or unfolded.

[0043] It should be understood that the area enclosed by the shaping ring plate 250 can be a strip-shaped opening. Thus, when the shaping ring plate 250 is used in conjunction with the cargo box, the length of the strip-shaped opening of the shaping ring plate 250 is consistent with the width direction of the cargo box, and the width of the strip-shaped opening is consistent with the length direction of the cargo box. When the shaping ring plate 250 moves from the front to the rear of the vehicle, it can cover the entire width area of ​​the cargo box, improve the uniformity and efficiency of the fabric, and also facilitate the control of the fabric width. The material in front in the direction of travel is less likely to affect the fabric of the material behind.

[0044] It should be understood that the travel drive 210 can also be a cylinder, a hydraulic cylinder, or a jack, etc.

[0045] Furthermore, the support frame 100 is provided with a first limiting member 160 and a second limiting member 170 arranged at intervals in a first direction, and the substrate 230 moves between the first limiting member 160 and the second limiting member 170. Both the first limiting member 160 and the second limiting member 170 can be configured as limit switches. When the substrate 230 moves in the first direction, it alternately contacts the first limiting member 160 and the second limiting member 170. When it contacts the first limiting member 160, the substrate 230 moves closer to the second limiting member 170. When it moves closer to the second limiting member 170, the substrate 230 folds back and moves closer to the first limiting member 160. This reciprocating motion enables automatic adjustment of the movement range of the substrate 230.

[0046] Optionally, the base plate 230 is provided with a brakeable set of wheels 260, which travel on the support frame 100. This facilitates the movement of the base plate 230 relative to the support frame 100. The set of wheels 260 can be engaged with the guide rail 150 to improve stability.

[0047] Please combine Figure 3 Optionally, the lifting drive 220 includes a lifting motor 221, multiple wiring wheels 222, and multiple pull ropes 223. The lifting motor 221 is mounted on the base plate 230. The multiple wiring wheels 222 are all mounted on the base plate 230 and arranged around the folded fabric bag 240. One end of the multiple pull ropes 223 converges and is connected to the lifting motor 221. The multiple pull ropes 223 pass around the multiple wiring wheels 222 and are connected to the shaping ring plate 250. The connection positions of the multiple pull ropes 223 and the shaping ring plate 250 are arranged at intervals in the circumferential direction of the shaping ring plate 250.

[0048] Please combine Figure 4 In this embodiment, optionally, the fabric feeding mechanism 200 further includes a material guiding mechanism 270. The material guiding mechanism 270 includes a material guiding bin 271 and a plurality of material guiding plates 272. The material guiding bin 271 is fixed on the support frame 100. The plurality of material guiding plates 272 are arranged in sequence and adjacent material guiding plates 272 are slidably connected. One of the material guiding plates 272 is rotatably connected to the material guiding bin 271, and the other of the material guiding plates 272 is rotatably connected to the base plate 230. The material guiding bin 271 is used to receive the finished mixture conveyed from the conveying mechanism 300, and the plurality of material guiding plates 272 cooperate to guide the finished mixture to the discharge port. With this design, when the substrate 230 drives the foldable fabric bag 240 to reciprocate relative to the cargo box, the material discharge port on the substrate 230 continuously adjusts its position relative to the conveying mechanism 300. At this time, the material output from the conveying mechanism 300 can fall directly onto the guide bin 271 and fall along the guide bin 271 to the material discharge port of the substrate 230, which is not easy to cause the material to scatter. In addition, the conveying mechanism 300 is stationary relative to the support frame 100, which is conducive to controlling the conveying speed of the conveying mechanism 300, simplifying the structure, reducing assembly difficulty, and reducing manufacturing costs.

[0049] Furthermore, a discharge port 2711 is provided at the bottom of the guide hopper 271, and a flow plate 273 is provided on the guide plate 272 which is rotatably connected to the guide hopper 271. The flow plate 273 is located at the discharge port 2711 and can rotate relative to the discharge port 2711 to reduce the flow rate of the discharge port 2711 when the substrate 230 is close to the guide hopper 271, and to increase the flow rate of the discharge port 2711 when the substrate 230 is far away from the guide hopper 271. With this design, when the substrate 230 moves close to the guide hopper 271, the multiple guide plates 272 move closer to each other, and the distance of the guide channel formed by all the guide plates 272 becomes shorter. Since the guide plates 272 store a large amount of material, in order to prevent the material from overflowing and causing waste, the flow plate 273 on the guide plate 272 adaptively reduces the size of the discharge port 2711 at the guide hopper 271. In this way, the flow rate at the discharge port 2711 is small, and less material enters the guide plate 272, thus relieving the discharge pressure. When the substrate 230 moves away from the guide bin 271, the multiple guide plates 272 move away from each other, and the distance of the guide channel formed by all the guide plates 272 becomes longer. Since the amount of material in the guide plate 272 is limited, the increased length can easily cause intermittent material conveying, affecting the conveying efficiency and quality. Therefore, during this process, the flow plate 273 on the guide plate 272 adaptively increases the size of the discharge port 2711 at the guide bin 271. In this way, the flow rate at the discharge port 2711 is large, and more material enters the guide plate 272, realizing continuous material conveying.

[0050] It should be understood that the adjacent guide plates 272 can be slidably fitted together through dovetail grooves or "T" grooves, making them tightly connected, not easy to fall off, and ensuring stable and reliable operation.

[0051] Furthermore, the flow plate 273 is slidably connected to the bottom of the guide hopper 271, and the flow plate 273 and the guide hopper 271 are connected by an elastic element 274, which gives the flow plate 273 a tendency to open the discharge port 2711. The elastic element 274 can be, but is not limited to, a spring. A toggle lever 275 is provided on the guide plate 272 located on the side. The toggle lever 275 can abut against the flow plate 273. When the base plate 230 moves close to the guide hopper 271, the guide plate 272 rotates clockwise, driving the toggle lever 275 to press the flow plate 273, causing it to move to the right in the direction of closing the discharge port 2711. When the substrate 230 moves away from the guide hopper 271, the guide plate 272 rotates counterclockwise, and the lever 275 moves away from the flow plate 273, that is, it will not press the flow plate 273. Under the action of the elastic element 274, the flow plate 273 moves to the left in the direction of opening the discharge port 2711.

[0052] Optionally, the conveying mechanism 300 includes a conveyor belt 310, which is driven by pulleys. During the rotation of the conveyor belt 310, the material is conveyed into the guide hopper 320.

[0053] Optionally, the conveying mechanism 300 may also include a conveying hopper 320 for conveying the finished mixture onto the conveyor belt 310.

[0054] The automatic material distribution device for the water-stabilized concrete mixing plant provided in this embodiment can control the quality of water-stabilized concrete during the unloading and loading process, effectively improving the segregation situation that occurs during the unloading process of water-stabilized concrete in the prior art, controlling the quality of the finished material, and ensuring the quality of subsequent base construction.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic material distribution device for a prefabricated water-stabilized mixing machine, characterized in that, include: The system comprises a support frame (100), a fabric spreading mechanism (200), and a conveying mechanism (300). The support frame (100) is used to connect to the ground. The fabric spreading mechanism (200) is slidably connected to the support frame (100), and the outlet of the fabric spreading mechanism (200) can be raised and lowered relative to the support frame (100). The conveying mechanism (300) cooperates with the fabric spreading mechanism (200) to receive and convey the finished mixture to the fabric spreading mechanism (200). The fabric spreading mechanism (200) is used to spread the finished mixture in layers inside the cargo compartment. The support frame (100) includes a support foot (110), a load-bearing frame (120), a protective frame (130), and a ladder (140). The load-bearing frame (120) is installed on the top of the support foot (110), and a guide rail (150) is provided on the load-bearing frame (120). The fabric-making mechanism (200) travels on the guide rail (150). The protective frame (130) and the ladder (140) are both installed on the support foot (110), and the ladder (140) is located within the area enclosed by the protective frame (130). The fabric mechanism (200) includes a traveling driver (210), a lifting driver (220), a base plate (230), a foldable fabric bag (240), and a shaping ring plate (250). The traveling driver (210) is mounted on the support frame (100), and the lifting driver (220) is mounted on the base plate (230). The base plate (230) is connected to the traveling driver (210) and is used to reciprocate relative to the support frame (100) in a first direction under the drive of the traveling driver (210). A material discharge port is provided on the substrate (230); one end of the foldable fabric bag (240) is connected to the substrate (230) and communicates with the material discharge port, and the other end is connected to the shaping ring plate (250). The shaping ring plate (250) has a discharge port communicating with the foldable fabric bag (240); the lifting driver (220) is connected to the shaping ring plate (250) and is used to drive the shaping ring plate (250) to rise and fall in a second direction with an angle to the first direction, so that the foldable fabric bag (240) is folded or unfolded. The fabric feeding mechanism (200) further includes a material guiding mechanism (270), which includes a material guiding bin (271) and multiple material guiding plates (272). The material guiding bin (271) is fixed on the support frame (100). The multiple material guiding plates (272) are arranged in sequence and adjacent material guiding plates (272) are slidably connected. One of the multiple material guiding plates (272) is rotatably connected to the material guiding bin (271), and the other of the multiple material guiding plates (272) is rotatably connected to the base plate (230). The material guiding bin (271) is used to receive the finished mixture conveyed from the conveying mechanism (300), and the multiple material guiding plates (272) cooperate to guide the finished mixture to the discharge port. The bottom of the feed hopper (271) is provided with a discharge port (2711). A flow plate (273) is provided on the feed guide plate (272) which is rotatably connected to the feed hopper (271). The flow plate (273) is located at the discharge port (2711). The flow plate (273) can rotate relative to the discharge port (2711) to reduce the flow rate of the discharge port (2711) when the substrate (230) is close to the feed hopper (271), and to increase the flow rate of the discharge port (2711) when the substrate (230) is far away from the feed hopper (271).

2. The automatic material distribution device for a prefabricated water-stabilized mixing machine according to claim 1, characterized in that: The support frame (100) is provided with a first limiting member (160) and a second limiting member (170) arranged at intervals in the first direction, and the substrate (230) travels between the first limiting member (160) and the second limiting member (170).

3. The automatic material distribution device for a prefabricated water-stabilized mixing machine according to claim 1, characterized in that: The base plate (230) is provided with a brakeable walking wheel set (260), which walks on the support frame (100).

4. The automatic material distribution device for a prefabricated water-stabilized mixing machine according to claim 1, characterized in that: The lifting drive (220) includes a lifting motor (221), multiple wiring wheels (222), and multiple pull ropes (223). The lifting motor (221) is mounted on the base plate (230). The multiple wiring wheels (222) are all mounted on the base plate (230) and arranged around the folded fabric bag (240). One end of each of the multiple pull ropes (223) is gathered and connected to the lifting motor (221). The multiple pull ropes (223) pass around the multiple wiring wheels (222) and are connected to the shaping ring plate (250). The connection positions of the multiple pull ropes (223) and the shaping ring plate (250) are arranged at intervals in the circumferential direction of the shaping ring plate (250).

5. The automatic material distribution device for a prefabricated water-stabilized mixing machine according to claim 1, characterized in that: The conveying mechanism (300) includes a conveyor belt (310).

6. The automatic material distribution device for a prefabricated water-stabilized mixing machine according to claim 5, characterized in that: The conveying mechanism (300) also includes a conveying hopper (320) for conveying the finished mixture onto the conveyor belt (310).

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