High-precision concrete batching machine and batching monitoring system thereof

Abstract

The invention discloses a high-precision concrete batching machine and a batching monitoring system thereof, and belongs to the technical field of concrete batching machines. Comprising a rack, storage hoppers located at the two ends of the top of the rack, a weighing hopper hoisted in the middle of the bottom of the rack, an upper conveying belt installed at the bottoms of the storage hoppers, a lower conveying belt installed at the bottoms of the weighing hopper and a weighing sensor used for detecting the weight of materials in the weighing hopper. Through cooperative cooperation of the hydraulic cylinder and the conveying mechanism, the height of the discharging cover can be dynamically adjusted according to the real-time height of materials in the weighing hopper, the falling fall of the materials is flexibly reduced, the generation basis of inertial impact is reduced from the source, meanwhile, the falling materials can be blocked by the guide plate in the discharging cover, impact kinetic energy is further buffered, and the discharging efficiency is improved. The problem of weighing reading distortion caused by the fact that a traditional fixed discharging opening is fixed due to the fall is effectively solved, and the weighing stability is remarkably improved.

Description

Technical Field

[0001] This invention relates to a concrete batching machine, and more particularly to a high-precision concrete batching machine and its batching monitoring system. This invention also relates to a batching monitoring system, and more particularly to a batching monitoring system for a high-precision concrete batching machine, belonging to the technical field of concrete batching machines. Background Technology

[0002] As a core piece of equipment in construction engineering and precast component production, the concrete batching machine's batching accuracy directly determines key properties such as concrete strength and workability, which is crucial to project quality.

[0003] Currently, the discharge ports of existing concrete batching machines generally adopt a fixed structure design, and the discharge height cannot be dynamically adjusted according to the amount of material injected. This results in the material falling at a fixed value, generating a large inertial impact force during the fall, which directly acts on the weighing hopper and causes severe vibration, resulting in distorted weighing readings and seriously affecting batching accuracy. At the same time, when the weighing reaches the set value, the existing equipment lacks an effective mechanism to intercept the suspended material in the air. The suspended material remaining in the material drop channel will continue to fall into the weighing hopper, forming a significant lag in the material drop error, which further aggravates the batching deviation.

[0004] The aforementioned dual defects make it difficult for existing batching machines to meet the requirements of high-precision construction. There is an urgent need for a technical solution that can dynamically adjust the discharge height and effectively intercept materials in the air to solve the current problem of insufficient precision. Summary of the Invention

[0005] The main objective of this invention is to provide a high-precision concrete batching machine and its batching monitoring system. Through the coordinated operation of a conveying mechanism consisting of a hydraulic cylinder, an outer sleeve, an inner sleeve, an upper rubber corrugated pipe, a lower rubber corrugated pipe, an upper rotating rod, an upper connecting plate, a lower rotating rod, and a lower connecting plate, the height of the discharge hood can be dynamically adjusted according to the real-time height of the material in the weighing hopper. This flexibly reduces the material drop difference, thereby reducing the basis for inertial impact at the source. Simultaneously, the guide plate inside the discharge hood can block the falling material, further buffering the impact kinetic energy. This effectively solves the problem of distorted weighing readings caused by the fixed drop difference in traditional fixed discharge ports, significantly improving weighing stability. By setting an inlet adjustment mechanism consisting of an L-shaped baffle, a fixed plate, a compression spring, a sliding rod, and a C-shaped lever between the storage hopper and the discharge pipe, the material discharge rate can be precisely reduced when the weighing rate approaches a set threshold. This, combined with a translation mechanism at the top of the discharge hood consisting of a vertical rod, a horizontal rod, a strip groove, a side plate, and a Z-shaped guide groove, further enhances the system's effectiveness. By altering the distance between the guide plate and the end of the conveying mechanism, precise material replenishment is achieved, ensuring that the weighing value approaches the accuracy. Furthermore, when the weighing threshold is reached, the material inlet adjustment mechanism quickly seals the storage hopper, and the guide plate simultaneously seals the bottom of the conveying mechanism, ensuring that suspended materials are stably stored inside the conveying mechanism. This completely eliminates delayed material drop, fundamentally solving the batching deviation caused by suspended material and further improving batching accuracy. The conveying mechanism, translation mechanism, and material inlet adjustment mechanism achieve efficient linkage through mechanical structures. Only a hydraulic cylinder is needed to drive continuous weighing of two materials, making operation simple and highly efficient. After a single weighing is completed, when the hydraulic cylinder is fully reset, it can drive the conveying mechanism to flip upwards, conveying the internally stored residual material to the top of the conveyor belt, achieving the recycling and reuse of residual material. This avoids the accuracy interference caused by the direct discharge of residual material during secondary batching, ensuring both material utilization and consistency in multiple batching processes, significantly improving practicality and reliability.

[0006] The objective of this invention can be achieved by adopting the following technical solution:

[0007] A high-precision concrete batching machine includes a frame, storage hoppers located at both ends of the top of the frame, a weighing hopper suspended at the middle of the bottom of the frame, an upper conveyor belt installed at the bottom of the storage hopper, a lower conveyor belt installed at the bottom of the weighing hopper, and a weighing sensor for detecting the weight of the material in the weighing hopper.

[0008] The weighing hopper is equipped with a discharge hood that can move vertically. A hydraulic cylinder is mounted on the frame. The telescopic end of the hydraulic cylinder is fixedly connected to the discharge hood and is used to drive the discharge hood to rise and fall to adjust the drop difference of the material.

[0009] Both sets of storage hoppers are equipped with discharge pipes at the bottom of the side near the weighing hopper. Both sides of the discharge hood are connected to the two sets of discharge pipes by a retractable conveying mechanism to realize the conveying of raw materials to the discharge hood or the return of residual materials to the discharge pipes.

[0010] Guide plates are slidably installed on both sides inside the discharge hood. The guide plates are used to cushion the impact of falling materials and guide them.

[0011] The top of the discharge hood is equipped with a translation mechanism, which is connected to the guide plate and is used to adjust the distance between the guide plate and the end of the conveying mechanism. The translation mechanism can also drive the guide plate to block the bottom of the conveying mechanism.

[0012] The connection between the storage hopper and the discharge pipe is equipped with a material outlet adjustment mechanism for controlling the discharge rate of the storage hopper and for sealing off the outlet.

[0013] Preferably, the conveying mechanism includes an outer sleeve, an inner sleeve, an upper rubber corrugated pipe, and a lower rubber corrugated pipe. The inner sleeve is slidably fitted inside the outer sleeve. The two ends of the upper rubber corrugated pipe are respectively sealed to the outlet pipe and the top of the inner sleeve. The two ends of the lower rubber corrugated pipe are respectively sealed to the bottom of the outer sleeve and the side of the discharge hood. Upper rotating rods are symmetrically and rotatably installed on both sides of the outlet pipe. An upper connecting plate is fixed to the end of each upper rotating rod. The end of the upper connecting plate away from the upper rotating rod is fixedly connected to the inner sleeve. Lower rotating rods are rotatably installed on both sides of the discharge hood. Lower connecting plates are fixed to each lower rotating rod. The end of the lower connecting plate away from the lower rotating rod is fixedly connected to the outer sleeve.

[0014] Preferably, the feed inlet adjustment mechanism includes an L-shaped baffle, a fixed plate, a compression spring, a slide rod, and a chamfered lever. The fixed plate is fixed to the outside of the storage hopper, the slide rod is inclined and slidably inserted into the fixed plate, and one end is fixedly connected to the L-shaped baffle. The L-shaped baffle is used to block the connection between the storage hopper and the outlet pipe. The compression spring is sleeved on the outside of the slide rod, and both ends abut against the fixed plate and the L-shaped baffle, respectively. The chamfered lever is fixed between two sets of upper rotating rods, and the top of the chamfered lever is in contact with the inner side of the L-shaped baffle.

[0015] Preferably, the translation mechanism includes a vertical rod, a horizontal rod, a strip groove, a side plate, and a Z-shaped guide groove. The vertical rod is vertically fixedly installed on the top of the guide plate. The top of the discharge hood is provided with strip grooves that cooperate with the vertical rod on both sides. The strip grooves are parallel to the width direction of the discharge hood. The top of the guide plate is provided with a horizontal rod parallel to the vertical rod and the horizontal rod is fixedly connected to the vertical rod. The middle position of both sides of the frame is vertically fixed with a side plate. The side plate is provided with a Z-shaped guide groove on both sides. The ends of the horizontal rods are located inside the Z-shaped guide grooves.

[0016] Preferably, the Z-shaped guide groove includes a vertical section and an inclined section. The vertical section is used to guide the crossbar to move vertically, and the inclined section is used to guide the guide plate to move closer to or away from the end of the conveying mechanism. The inclined sections of the two sets of Z-shaped guide grooves on the side plate are located on different horizontal planes.

[0017] Preferably, the top of the guide plate has two sets of vertical rods, and the vertical rods are located at both ends of the guide plate.

[0018] Preferably, at least four weighing sensors are provided and are evenly distributed between the bottom of the weighing hopper and the frame. The weighing sensors are electrically connected to an external controller to transmit weight signals to the controller for linkage control of the hydraulic cylinder, the material inlet adjustment mechanism and the translation mechanism.

[0019] Preferably, each set of sliding rods is provided, and the spacing between adjacent sliding rods is the same. The fixing plate is provided with sliding holes that cooperate with the sliding rods.

[0020] Preferably, the guide plate is made of stainless steel and the surface of the guide plate is coated with a wear-resistant coating.

[0021] The present invention also provides a batching monitoring system for a high-precision concrete batching machine, comprising the following steps:

[0022] Step 1: The controller first controls the hydraulic cylinder to extend and drive the discharge cover to move to the bottom of the weighing hopper. Then, the weight of the material in the weighing hopper is monitored in real time by the weighing sensor. Based on the weight of the material, the controller controls the hydraulic cylinder to retract and drive the discharge cover to rise, so that the discharge cover and the material inside the weighing hopper maintain a small gap. At the same time, the controller controls the material outlet adjustment mechanism to open the storage hopper. The material falls into the weighing hopper through the outlet pipe, the conveying mechanism, and the discharge cover. The guide plate buffers and guides the material.

[0023] Step 2: When the weighing sensor detects that the weight of the material has reached 80%-90% of the weighing threshold, the controller controls the material outlet adjustment mechanism to reduce the discharge opening of the storage hopper and reduce the discharge rate. At the same time, it controls the translation mechanism to move the guide plate closer to the end of the conveying mechanism to reduce the material drop gap and achieve fine material replenishment.

[0024] Step 3: When the weighing sensor detects that the weight of the material has reached the weighing threshold, the controller controls the material inlet adjustment mechanism to completely block the storage hopper, and at the same time controls the translation mechanism to drive the guide plate to block the bottom of the conveying mechanism, so that the residual material in the air is stored inside the conveying mechanism.

[0025] Step 4: After the material is discharged from a single hopper, the conveying mechanism on that side is blocked, while the material outlet adjustment mechanism and guide plate on the other hopper side are open. The discharge hood continues to rise by driving the hydraulic cylinder. Repeat steps 2 and 3 above to complete the discharge of another raw material.

[0026] Step 5: After the two materials are batched, the controller controls the hydraulic cylinder to fully reset, drives the discharge hood to rise to the highest position, and drives the bottom of the conveyor mechanism to face the corresponding upper conveyor belt, pouring the residual material stored in the conveyor mechanism onto the top of the upper conveyor belt, so as to realize the recycling and reuse of the residual material.

[0027] Step 6: Repeat steps 1-5 to achieve continuous batching operation, and dynamically adjust the action parameters of the hydraulic cylinder, material outlet adjustment mechanism and translation mechanism by providing real-time feedback of weight data through the weighing sensor.

[0028] The beneficial effects of this invention are as follows:

[0029] This invention provides a high-precision concrete batching machine and its batching monitoring system. Through the coordinated operation of a conveying mechanism consisting of a hydraulic cylinder, an outer sleeve, an inner sleeve, an upper rubber corrugated pipe, a lower rubber corrugated pipe, an upper rotating rod, an upper connecting plate, a lower rotating rod, and a lower connecting plate, the height of the discharge hood can be dynamically adjusted according to the real-time height of the material in the weighing hopper. This flexibly reduces the material drop difference, thereby reducing the basis for inertial impact at the source. At the same time, the guide plate inside the discharge hood can block the falling material, further buffering the impact kinetic energy. This effectively solves the problem of weighing reading distortion caused by the fixed drop difference in traditional fixed discharge ports, and significantly improves weighing stability.

[0030] By setting an inlet adjustment mechanism consisting of an L-shaped baffle, a fixed plate, a compression spring, a slide rod, and a C-shaped lever between the storage hopper and the outlet pipe, the material discharge rate can be precisely reduced when the weighing rate approaches the set threshold. In conjunction with the translation mechanism at the top of the discharge hood, which consists of a vertical rod, a horizontal rod, a strip groove, a side plate, and a Z-shaped guide groove, the distance between the guide plate and the end of the conveying mechanism is changed, achieving precise material replenishment and ensuring that the weighing rate approaches the accurate value. In addition, when the weighing threshold is reached, the inlet adjustment mechanism quickly seals the storage hopper, and the guide plate simultaneously seals the bottom of the conveying mechanism, so that the suspended material is stably stored inside the conveying mechanism, completely eliminating the phenomenon of delayed material falling, fundamentally solving the batching deviation caused by the suspended material, and further improving the batching accuracy.

[0031] The conveying mechanism, translation mechanism, and material inlet adjustment mechanism achieve efficient linkage through mechanical structure. Only a hydraulic cylinder is needed to drive the continuous weighing of two materials. The operation is simple and the work efficiency is high. When a single weighing is completed and the hydraulic cylinder is completely reset, it can drive the conveying mechanism to flip upward and transport the internally stored residual material to the top of the conveyor belt. This realizes the recycling and reuse of residual material and avoids the accuracy interference caused by the direct discharge of residual material during secondary batching. It not only ensures the material utilization rate but also ensures the consistency of multiple batchings, significantly improving practicality and reliability. Attached Figure Description

[0032] Figure 1 This is a front view of the batching status of a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0033] Figure 2 This is a front sectional view of the batching status of a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0034] Figure 3 This is a front view of the connection state of the conveying mechanism, discharge hood, and outlet pipe in a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0035] Figure 4 This is a cross-sectional view of the connection state of the conveying mechanism, discharge hood, and outlet pipe in a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0036] Figure 5 This is a front view of the discharge hood of a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0037] Figure 6 This is a side sectional view of the discharge hood of a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0038] Figure 7 This is a bottom view of the discharge hood of a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention;

[0039] Figure 8 This is a diagram of the side material inlet adjustment mechanism of the storage hopper in a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0040] Figure 9 This is a structural diagram of an L-shaped baffle in a preferred embodiment of a high-precision concrete batching machine and its batching monitoring system according to the present invention.

[0041] In the diagram: 1. Frame; 101. Storage hopper; 102. Weighing hopper; 103. Upper conveyor belt; 104. Lower conveyor belt; 105. Weighing sensor;

[0042] 2. Hydraulic cylinder; 3. Discharge hood; 4. Outlet pipe;

[0043] 5. Conveying mechanism; 501. Outer sleeve; 502. Inner sleeve; 503. Upper rubber corrugated pipe; 504. Lower rubber corrugated pipe; 505. Upper rotating rod; 506. Upper connecting plate; 507. Lower rotating rod; 508. Lower connecting plate;

[0044] 6. Guide plate;

[0045] 7. Translation mechanism; 701. Vertical rod; 702. Horizontal rod; 703. Strip groove; 704. Side plate; 705. Z-shaped guide groove;

[0046] 8. Feed inlet adjustment mechanism; 801. L-shaped baffle; 802. Fixing plate; 803. Compression spring; 804. Slide rod; 805. C-shaped lever. Detailed Implementation

[0047] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0048] like Figures 1-9 As shown, this embodiment provides a high-precision concrete batching machine, including a frame 1, storage hoppers 101 located at both ends of the top of the frame 1, a weighing hopper 102 suspended at the middle position of the bottom of the frame 1, an upper conveyor belt 103 installed at the bottom of the storage hopper 101, a lower conveyor belt 104 installed at the bottom of the weighing hopper 102, and a weighing sensor 105 for detecting the weight of the material in the weighing hopper 102.

[0049] The weighing hopper 102 is equipped with a discharge cover 3 that can move vertically at the top. A hydraulic cylinder 2 is mounted on the frame 1. The telescopic end of the hydraulic cylinder 2 is fixedly connected to the discharge cover 3 and is used to drive the discharge cover 3 to rise and fall to adjust the drop difference of the material.

[0050] Both sets of storage hoppers 101 are equipped with discharge pipes 4 at the bottom of the side near the weighing hopper 102. Both sides of the discharge hood 3 are connected to the two sets of discharge pipes 4 by a retractable conveying mechanism 5, so as to realize the conveying of raw materials to the discharge hood 3 or the return of residual materials to the discharge pipes 4.

[0051] Guide plates 6 are slidably installed on both sides inside the discharge hood 3. The guide plates 6 are used to buffer and guide the falling materials.

[0052] The top of the discharge hood 3 is provided with a translation mechanism 7, which is connected to the guide plate 6 and is used to adjust the distance between the guide plate 6 and the end of the conveying mechanism 5. The translation mechanism 7 can drive the guide plate 6 to block the bottom of the conveying mechanism 5.

[0053] The connection between the storage hopper 101 and the discharge pipe 4 is provided with a material outlet adjustment mechanism 8 for controlling the discharge rate of the storage hopper 101 and sealing.

[0054] Overall working principle: In the initial state, the weighing hopper 102 is empty. The weighing sensor 105 transmits an empty signal to the external controller, which then starts the system to enter the material preparation state. The controller first controls the hydraulic cylinder 2 to extend, pushing the discharge hood 3 downward, so that the bottom of the discharge hood 3 maintains a small initial distance from the top of the weighing hopper 102, shortening the subsequent drop difference of the material from the source, laying the foundation for reducing impact vibration. During the subsequent material feeding process, the controller controls the discharge hood 3 to move upward according to the height of the material.

[0055] Simultaneously, the controller activates the feed inlet adjustment mechanism 8, opening the connection between the storage hopper 101 and the discharge pipe 4. The first type of material stored in the storage hopper 101 flows into the conveying mechanism 5 through the discharge pipe 4. The conveying mechanism 5 adapts to the lifting position of the discharge hood 3 through the relative sliding of the outer sleeve 501 and the inner sleeve 502, and the expansion and contraction deformation of the upper rubber corrugated pipe 503 and the lower rubber corrugated pipe 504, ensuring that the material conveying channel is sealed and unobstructed, and the material smoothly enters the discharge hood 3 through the conveying mechanism 5.

[0056] The guide plates 6 on both sides inside the discharge hood 3 form a barrier for the falling material. The stainless steel guide plates 6, with a wear-resistant coating on the surface, can withstand the impact of the material and reduce wear. By changing the falling trajectory of the material and extending the falling path, the impact kinetic energy of the material is buffered, and the material is prevented from directly impacting the bottom of the weighing hopper 102 at high speed, which would cause violent vibration. This also prevents the weighing sensor 105 from distorting the reading. After being guided by the guide plates 6, the material falls evenly into the weighing hopper 102.

[0057] The weighing sensor 105 monitors the weight of the material in the weighing hopper 102 in real time and continuously feeds it back to the controller. When the weight reaches 80%-90% of the weighing threshold, the controller triggers the fine feeding mode: on the one hand, it controls the material outlet adjustment mechanism 8 to reduce the width of the discharge port and reduce the material discharge rate; on the other hand, it controls the translation mechanism 7 to drive the guide plate 6 to move closer to the end of the conveying mechanism 5 to reduce the material drop gap. Fine feeding is achieved through the combination of slow discharge and narrow gap to ensure that the weight of the material is accurately close to the set threshold.

[0058] When the weighing sensor 105 detects that the material weight has reached the weighing threshold, the controller immediately issues a blocking command: the material inlet adjustment mechanism 8 completely blocks the connection between the storage hopper 101 and the outlet pipe 4, stopping the discharge; the translation mechanism 7 simultaneously drives the guide plate 6 to completely fit the bottom of the conveying mechanism 5, sealing and storing the residual air material inside the conveying mechanism 5, and completely eliminating the weight deviation caused by delayed material discharge.

[0059] After the first material is batched, the conveying mechanism 5 on this side remains blocked, while the material inlet adjustment mechanism 8 and guide plate 6 on the other side of the storage hopper 101 switch to the open state under the control of the controller. The hydraulic cylinder 2 continues to drive the discharge hood 3 to rise, adapting to the discharge height requirements of the second material, and repeats the above "coarse feeding - fine feeding - blocking and interception" process to complete the accurate weighing of the second material.

[0060] After both materials are batched, the controller controls the hydraulic cylinder 2 to fully reset, causing the discharge hood 3 to rise to its highest position. At this time, the discharge hood 3 pulls the outer sleeve 501 to rotate via the lower rotating rod 507 and the lower connecting plate 508, so that the bottom of the conveying mechanism 5 faces the upper conveyor belt 103. The residual material stored inside is poured onto the upper conveyor belt 103 under gravity and transported back to the corresponding storage hopper 101 for recycling and reuse, avoiding the residual material from affecting the accuracy of subsequent batching. The system then repeats the above process to achieve continuous automated batching of two materials. The controller dynamically adjusts the extension and retraction of the hydraulic cylinder 2, the opening and closing degree of the material inlet adjustment mechanism 8, and the movement amplitude of the translation mechanism 7 based on real-time feedback data from the weighing sensor 105, ensuring that the batching accuracy is stable and meets the standards each time.

[0061] In this embodiment, the conveying mechanism 5 includes an outer sleeve 501, an inner sleeve 502, an upper rubber corrugated pipe 503, and a lower rubber corrugated pipe 504. The inner sleeve 502 is slidably sleeved inside the outer sleeve 501. The two ends of the upper rubber corrugated pipe 503 are respectively sealed and connected to the outlet pipe 4 and the top of the inner sleeve 502. The two ends of the lower rubber corrugated pipe 504 are respectively sealed and connected to the bottom of the outer sleeve 501 and the side of the discharge hood 3. The two sides of the outlet pipe 4 are symmetrically and rotatably mounted with upper rotating rods 505. The ends of the upper rotating rods 505 are each fixed with an upper connecting plate 506. The ends of the upper connecting plates 506 away from the upper rotating rods 505 are each fixedly connected to the inner sleeve 502. The two sides of the discharge hood 3 are rotatably mounted with lower rotating rods 507. The lower rotating rods 507 are each fixed with a lower connecting plate 508. The ends of the lower connecting plates 508 away from the lower rotating rods 507 are each fixedly connected to the outer sleeve 501.

[0062] Partial working principle: When the hydraulic cylinder 2 drives the discharge hood 3 to rise and fall, the discharge hood 3 drives the lower rotating rods 507 on both sides to rotate synchronously. The lower rotating rods 507 pull the outer sleeve 501 to move vertically through the lower connecting plate 508. When the outer sleeve 501 moves, the inner sleeve 502 fitted inside it slides accordingly, adapting to the change in distance between the discharge hood 3 and the outlet pipe 4. The two ends of the upper rubber corrugated pipe 503 are respectively sealed to the outlet pipe 4 and the top of the inner sleeve 502, and the two ends of the lower rubber corrugated pipe 504 are respectively sealed to the bottom of the outer sleeve 501 and the side of the discharge hood 3. The two extend and retract synchronously with the relative movement of the inner sleeve 502 and the outer sleeve 501, always keeping the material conveying channel sealed and preventing material leakage.

[0063] The upper rotating rods 505 on both sides of the outlet pipe 4 rotate synchronously with the movement of the inner sleeve 502. The upper rotating rods 505 provide symmetrical support and guidance for the inner sleeve 502 through the upper connecting plate 506, ensuring that the inner sleeve 502 moves smoothly without deviation. The lower rotating rods 507 provide symmetrical support and guidance for the outer sleeve 501 through the lower connecting plate 508, ensuring that the outer sleeve 501 maintains a stable posture during movement. When the batching is completed and the hydraulic cylinder 2 is reset, the discharge hood 3 drives the conveying mechanism 5 to rotate as a whole, causing the residual material inside the conveying mechanism 5 to tilt towards the upper conveyor belt 103, realizing the recycling and reuse of the residual material.

[0064] In this embodiment, the feed inlet adjustment mechanism 8 includes an L-shaped baffle 801, a fixed plate 802, a compression spring 803, a sliding rod 804, and a chamfered lever 805. The fixed plate 802 is fixed to the outside of the storage hopper 101. The sliding rod 804 is inclined and slidably inserted into the fixed plate 802, and one end is fixedly connected to the L-shaped baffle 801. The L-shaped baffle 801 is used to block the connection between the storage hopper 101 and the outlet pipe 4. The compression spring 803 is sleeved on the outside of the sliding rod 804, and both ends abut against the fixed plate 802 and the L-shaped baffle 801, respectively. The chamfered lever 805 is fixed between the two sets of upper rotating rods 505, and the top of the chamfered lever 805 is in contact with the inner side of the L-shaped baffle 801.

[0065] Local working principle: In the initial state, the bottom end of the conveying mechanism 5 faces the corresponding upper conveyor belt 103, and the compression spring 803 is in a naturally extended state. Its elasticity pushes the L-shaped baffle 801 to tightly fit the connection between the storage hopper 101 and the outlet pipe 4. At this time, the discharge port is completely closed, and the material cannot fall. When it is necessary to open the discharge, the hydraulic cylinder 2 drives the discharge cover 3 to move down to the bottom. The upper rotating rod 505 rotates, driving the C-shaped lever 805 fixed between the two sets of upper rotating rods 505 to rotate synchronously. The top of the C-shaped lever 805 presses against the inner side of the L-shaped baffle 801, generating a thrust along the direction of the slide rod 804.

[0066] The sliding rod 804 is inclinedly inserted into the sliding hole of the fixed plate 802 and fixedly connected to the L-shaped baffle 801. Under the action of thrust, the L-shaped baffle 801 moves inclinedly along the sliding hole with the sliding rod 804, the compression spring 803 is compressed, the L-shaped baffle 801 moves away from the connecting port, the discharge port opens, and the material enters the discharge pipe 4. When it is necessary to reduce the discharge rate, the hydraulic cylinder 2 drives the discharge cover 3 to move upward, the upper rotating rod 505 rotates in the opposite direction, the squeezing force of the C-shaped lever 805 on the L-shaped baffle 801 decreases, the compression spring 803 rebounds and pushes the L-shaped baffle 801 to partially block the connecting port, narrowing the width of the discharge channel and realizing the adjustment of the discharge rate.

[0067] When the weighing threshold is reached, the upper rotating rod 505 continues to rotate in the opposite direction, the C-shaped lever 805 completely separates from the L-shaped baffle 801, the compression spring 803 fully rebounds, the L-shaped baffle 801 resets and completely seals the connection port, stopping material discharge. Three sets of evenly distributed sliding rods 804 provide stable guidance for the L-shaped baffle 801, preventing it from shifting during movement and ensuring accurate material discharge adjustment and sealing.

[0068] In this embodiment, the translation mechanism 7 includes a vertical rod 701, a horizontal rod 702, a strip groove 703, a side plate 704, and a Z-shaped guide groove 705. The vertical rod 701 is vertically fixedly installed on the top of the guide plate 6. The top of the discharge hood 3 is provided with strip grooves 703 that cooperate with the vertical rod 701 on both sides. The strip grooves 703 are parallel to the width direction of the discharge hood 3. The top of the guide plate 6 is provided with horizontal rods 702 parallel to each other, and the horizontal rods 702 are fixedly connected to the vertical rods 701. The middle positions of both sides of the frame 1 are vertically fixed with side plates 704. The sides of the side plates 704 are provided with Z-shaped guide grooves 705. The ends of the horizontal rods 702 are located inside the Z-shaped guide grooves 705.

[0069] Local working principle: When the hydraulic cylinder 2 drives the discharge hood 3 to rise and fall, the vertical rod 701 rises and falls synchronously with the discharge hood 3, driving the horizontal rod 702 to move along the Z-shaped guide groove 705. In the initial feeding stage, the horizontal rod 702 moves along the vertical section of the Z-shaped guide groove 705. At this time, the guide plate 6 only rises and falls with the discharge hood 3, its horizontal position remains unchanged, and it maintains a large distance from the end of the conveying mechanism 5 to ensure that the material falls quickly and smoothly.

[0070] When the material weight reaches 80%-90% of the weighing threshold, the discharge hood 3 continues to rise, and the horizontal bar 702 enters the inclined section of the Z-shaped guide trough 705. The guiding effect of the inclined section generates a horizontal component force, which pushes the horizontal bar 702 to drive the vertical bar 701 to move horizontally along the strip groove 703. The vertical bar 701 pulls the guide plate 6 closer to the end of the conveying mechanism 5, reducing the material drop gap and realizing fine material replenishment. At the same time, the material outlet adjustment mechanism 8 also enters the adjustment stage.

[0071] When the material weight reaches the weighing threshold, the crossbar 702 continues to move along the inclined section, and the guide plate 6 completely fits the bottom of the conveying mechanism 5, thus sealing off any remaining material. Simultaneously, the material inlet adjustment mechanism 8 also enters the sealing stage. The inclined sections of the two sets of Z-shaped guide grooves 705 on the side plate 704 are located on different horizontal planes, ensuring that the action sequence of the guide plates 6 on both sides adapts to the sequential feeding requirements of the two materials, avoiding interference.

[0072] In this embodiment, the Z-shaped guide groove 705 includes a vertical section and an inclined section. The vertical section is used to guide the horizontal bar 702 to move vertically, and the inclined section is used to guide the guide plate 6 to move closer to or away from the end of the conveying mechanism 5. The inclined sections of the two sets of Z-shaped guide grooves 705 on the side plate 704 are located on different horizontal planes.

[0073] Local working principle: During the initial feeding, the crossbar 702 moves along the vertical section, and the guide plate 6 only rises and falls with the discharge hood 3, with the horizontal position fixed, ensuring that the material has enough space to fall and improving feeding efficiency.

[0074] When fine material replenishment is required, the crossbar 702 moves to the junction of the vertical section and the inclined section. As the discharge hood 3 continues to rise, the inclined section generates a horizontal guiding force on the crossbar 702, forcing the crossbar 702 to drive the vertical bar 701 and the guide plate 6 to move horizontally, thereby adjusting the material drop gap.

[0075] Since the inclined sections of the two Z-shaped guide channels 705 are at different horizontal planes, when the discharge hood 3 rises to the corresponding height, the crossbar 702 on one side enters the inclined section first, driving the guide plate 6 on that side to complete fine feeding and sealing; when the discharge hood 3 continues to rise to a higher position, the crossbar 702 on the other side enters its corresponding inclined section, driving the guide plate 6 on the other side to move, adapting to the process of sequential feeding of the two storage hoppers 101, ensuring that the weighing of the two materials does not interfere with each other.

[0076] In this embodiment, the top of the guide plate 6 has two sets of vertical rods 701, and the vertical rods 701 are located at both ends of the guide plate 6.

[0077] Local working principle: When the horizontal bar 702 is subjected to a horizontal component force in the Z-shaped guide groove 705, the two sets of vertical bars 701 simultaneously bear the horizontal tension or thrust, driving the guide plate 6 to move smoothly along the sliding track inside the discharge cover 3.

[0078] The symmetrical design of the double vertical rods 701 avoids tilting, jamming or offset of the guide plate 6 due to force on one side, ensuring that the guide plate 6 provides uniform buffering and guiding effect on the material, while ensuring that the guide plate 6 can be accurately aligned with the bottom of the conveying mechanism 5 to achieve sealing and blockage, prevent leakage of residual material, and improve the stability and reliability of the mechanism operation.

[0079] In this embodiment, at least four weighing sensors 105 are provided and are evenly distributed between the bottom of the weighing hopper 102 and the frame 1. The weighing sensors 105 are electrically connected to an external controller and are used to transmit weight signals to the controller to control the hydraulic cylinder 2, the material outlet adjustment mechanism 8 and the translation mechanism 7 in a coordinated manner.

[0080] Local working principle: The weighing sensor 105 converts the detected weight signal into an electrical signal in real time and transmits it to the external controller. The controller analyzes and processes the signal to determine whether the material weight has reached the preset coarse feeding threshold, fine feeding threshold and final weighing value. Based on the rate of weight change, the controller dynamically adjusts the extension and retraction of the hydraulic cylinder 2, the opening and closing degree of the feed port adjustment mechanism 8 and the translation amplitude of the translation mechanism 7 to realize the automated closed-loop control of the batching process and ensure that the weight error of each batching is controlled within the preset range.

[0081] In this embodiment, each slide rod 804 is provided in three sets, and the spacing between adjacent slide rods 804 is the same. The fixing plate 802 is provided with sliding holes that cooperate with the slide rods 804.

[0082] Local working principle: The three-point distributed sliding rod 804 avoids the offset, tilting or jamming of the L-shaped baffle 801 during the movement process, ensuring that the L-shaped baffle 801 can accurately and smoothly block or open the connection between the storage hopper 101 and the outlet pipe 4, ensuring the linear accuracy of the discharge rate adjustment and the sealing reliability of the blockage, and providing a guarantee for improving the overall batching accuracy.

[0083] In this embodiment, the guide plate 6 is made of stainless steel, and the surface of the guide plate 6 is coated with a wear-resistant coating.

[0084] Local working principle: When material falls from the conveying mechanism 5 into the discharge hood 3, the guide plate 6 forms a rigid barrier for the falling material, changing the vertical trajectory of the material, extending the falling path of the material in the discharge hood 3, buffering the impact kinetic energy of the material, and avoiding the material directly impacting the bottom of the weighing hopper 102 at high speed, which would cause the weighing hopper 102 to vibrate violently, thereby preventing the weighing sensor 105 from distorting its reading. The wear-resistant coating on its surface reduces the coefficient of friction between the material and the guide plate 6, reducing the wear of the material on the guide plate 6 and extending its service life.

[0085] like Figures 1-9 As shown in the figure, this embodiment provides a batching monitoring system for a high-precision concrete batching machine. The process is as follows:

[0086] Step 1: The controller first controls the hydraulic cylinder 2 to extend and drive the discharge cover 3 to move to the bottom of the weighing hopper 102. Then, the weighing sensor 105 monitors the weight of the material in the weighing hopper 102 in real time. Based on the weight of the material, the controller controls the hydraulic cylinder 2 to retract and drive the discharge cover 3 to rise, so that the discharge cover 3 and the material inside the weighing hopper 102 maintain a small gap. At the same time, the controller controls the material outlet adjustment mechanism 8 to open the storage hopper 101. The material falls into the weighing hopper 102 through the outlet pipe 4, the conveying mechanism 5, and the discharge cover 3. The guide plate 6 buffers and guides the material.

[0087] Step 2: When the weighing sensor 105 detects that the weight of the material has reached 80%-90% of the weighing threshold, the controller controls the material outlet adjustment mechanism 8 to reduce the discharge outlet of the storage hopper 101 and reduce the discharge rate. At the same time, the controller controls the translation mechanism 7 to drive the guide plate 6 closer to the end of the conveying mechanism 5 to reduce the material drop gap and achieve fine material replenishment.

[0088] Step 3: When the weighing sensor 105 detects that the weight of the material has reached the weighing threshold, the controller controls the material inlet adjustment mechanism 8 to completely block the storage hopper 101, and at the same time controls the translation mechanism 7 to drive the guide plate 6 to block the bottom of the conveying mechanism 5, so that the residual material in the air is stored inside the conveying mechanism 5.

[0089] Step 4: After the material is discharged from a single hopper 101, the inside of the conveying mechanism 5 on that side is in a blocked state, while the material outlet adjustment mechanism 8 and the guide plate 6 on the other hopper 101 side are in an open state. The discharge cover 3 is driven to continue to rise by the hydraulic cylinder 2. Repeat the above steps 2 and 3 to complete the discharge of another raw material.

[0090] Step 5: After the two materials are mixed, the controller controls the hydraulic cylinder 2 to fully reset, drives the discharge hood 3 to rise to the highest position, and drives the bottom end of the conveying mechanism 5 to face the corresponding upper conveyor belt 103, pouring the residual material stored in the conveying mechanism 5 to the top of the upper conveyor belt 103, so as to realize the recycling and reuse of the residual material.

[0091] Step 6: Repeat steps 1-5 to achieve continuous batching operation, and dynamically adjust the action parameters of hydraulic cylinder 2, material inlet adjustment mechanism 8 and translation mechanism 7 by real-time feedback of weight data through weighing sensor 105.

[0092] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A high-precision concrete batching plant, comprising a frame (1), storage hoppers (101) located at both ends of the top of the frame (1), a weighing hopper (102) suspended at the middle of the bottom of the frame (1), an upper conveying belt (103) installed at the bottom of the storage hopper (101), a lower conveying belt (104) installed at the bottom of the weighing hopper (102), and a load cell (105) for detecting the weight of the material in the weighing hopper (102); characterized in that: a discharge cover (3) that can move vertically is arranged at the top of the weighing hopper (102), a hydraulic cylinder (2) is mounted on the frame (1), the telescopic end of the hydraulic cylinder (2) is fixedly connected with the discharge cover (3), and the discharge cover (3) is driven to ascend and descend to adjust the falling height of the material; a discharge pipe (4) is installed at the bottom of the side of each of the two groups of storage hoppers (101) close to the weighing hopper (102), and a telescopic conveying mechanism (5) is connected between the two sides of the discharge cover (3) and the two groups of discharge pipes (4) to realize the conveying of the raw material to the discharge cover (3) or the back-falling of the residual material to the discharge pipe (4); a guide plate (6) is slidably arranged at both sides of the inside of the discharge cover (3), and the guide plate (6) is used for impact buffering and guiding the falling material; a translation mechanism (7) is arranged at the top of the discharge cover (3) and connected with the guide plate (6), which is used for adjusting the distance between the guide plate (6) and the end of the conveying mechanism (5), and the translation mechanism (7) can drive the guide plate (6) to block the bottom end of the conveying mechanism (5); a material port adjusting mechanism (8) for controlling the discharging rate and blocking of the storage hopper (101) is arranged at the connection between the storage hopper (101) and the discharge pipe (4).

2. A high-precision concrete batching plant according to claim 1, characterized in that: The conveying mechanism (5) comprises an outer sleeve (501), an inner sleeve (502), an upper rubber bellows (503), and a lower rubber bellows (504), the inner sleeve (502) is slidably sleeved in the outer sleeve (501), the upper rubber bellows (503) is sealingly connected at both ends with the discharge pipe (4) and the top of the inner sleeve (502), the lower rubber bellows (504) is sealingly connected at both ends with the bottom of the outer sleeve (501) and the side of the discharge cover (3), upper rotating rods (505) are symmetrically and rotatably installed at both sides of the discharge pipe (4), upper connecting plates (506) are fixedly arranged at the ends of the upper rotating rods (505), the ends of the upper connecting plates (506) away from the upper rotating rods (505) are fixedly connected with the inner sleeve (502), lower rotating rods (507) are rotatably installed at both sides of the discharge cover (3), lower connecting plates (508) are fixedly arranged on the lower rotating rods (507), and the ends of the lower connecting plates (508) away from the lower rotating rods (507) are fixedly connected with the outer sleeve (501).

3. A high-precision concrete batching plant according to claim 2, characterized in that: The material port adjusting mechanism (8) comprises an L-shaped baffle (801), a fixed plate (802), an extrusion spring (803), a slide rod (804) and a U-shaped push rod (805), the fixed plate (802) is fixedly arranged outside the storage hopper (101), the slide rod (804) is obliquely arranged and slidably arranged in the fixed plate (802), and one end of the slide rod (804) is fixedly connected with the L-shaped baffle (801), the L-shaped baffle (801) is used for shielding the communication opening between the storage hopper (101) and the outlet pipe (4), the extrusion spring (803) is sleeved outside the slide rod (804), and both ends of the extrusion spring (803) are abutted with the fixed plate (802) and the L-shaped baffle (801) respectively, and the U-shaped push rod (805) is fixed between the two groups of upper rotating rods (505), and the top of the U-shaped push rod (805) is attached to the inner side of the L-shaped baffle (801).

4. The high-precision concrete batching plant of claim 1, wherein: The translation mechanism (7) comprises a vertical rod (701), a horizontal rod (702), a strip-shaped groove (703), a side plate (704) and a Z-shaped guide groove (705), the vertical rod (701) is vertically fixedly arranged on the top of the guide plate (6), the two sides of the top of the discharge cover (3) are provided with the strip-shaped groove (703) matched with the vertical rod (701), the strip-shaped groove (703) is parallel to the width direction of the discharge cover (3), the top of the guide plate (6) is provided with the horizontal rod (702) in parallel, and the horizontal rod (702) is fixedly connected between the vertical rod (701), the middle positions of the two sides of the rack (1) are vertically fixed with the side plate (704), the two sides of the side plate (704) are provided with the Z-shaped guide groove (705), and the end portions of the horizontal rod (702) are located in the Z-shaped guide groove (705).

5. A high-precision concrete batching plant according to claim 4, characterized in that: The Z-shaped guide groove (705) comprises a vertical segment and an inclined segment, the vertical segment is used for guiding the vertical movement of the horizontal rod (702), and the inclined segment is used for guiding the guide plate (6) to be close to or away from the end portion of the conveying mechanism (5), and the inclined segments of the two groups of Z-shaped guide grooves (705) on the side plate (704) are located on different horizontal planes.

6. A high-precision concrete batching plant according to claim 4, characterized in that: The vertical rod (701) is arranged on the top of the guide plate (6), and the vertical rod (701) is arranged at the two ends of the guide plate (6).

7. A high-precision concrete batching plant according to claim 1, characterized in that: The weighing sensor (105) is arranged at least four, and is evenly distributed between the weighing hopper (102) bottom and the rack (1), the weighing sensor (105) and the external controller are electrically connected, and are used for transmitting the weight signal to the controller to control the hydraulic cylinder (2), the material port adjusting mechanism (8) and the translation mechanism (7).

8. A high-precision concrete batching plant according to claim 3, characterized in that: The slide rod (804) is arranged in three groups, and the spacing between adjacent slide rods (804) is the same, and the fixed plate (802) is provided with a sliding hole matched with the slide rod (804).

9. A high-precision concrete batching plant according to claim 1, characterized in that: The guide plate (6) is made of stainless steel, and the surface of the guide plate (6) is coated with a wear-resistant coating.

10. A batching monitoring system of a high-precision concrete batcher based on the high-precision concrete batcher according to any one of claims 1-9, characterized in that, The method comprises the following steps: Step 1: The controller first controls the hydraulic cylinder (2) to extend to drive the discharge cover (3) to move to the bottom of the weighing hopper (102), and then monitors the weight of the material in the weighing hopper (102) in real time through the weighing sensor (105). According to the weight of the material, the controller controls the hydraulic cylinder (2) to retract to drive the discharge cover (3) to rise, so that the discharge cover (3) maintains a small gap with the material inside the weighing hopper (102), and at the same time controls the material port adjusting mechanism (8) to open the storage hopper (101). The material falls into the weighing hopper (102) through the discharge pipe (4), the conveying mechanism (5), and the discharge cover (3), and the guide plate (6) buffers and guides the material; Step 2: When the weighing sensor (105) detects that the weight of the material reaches 80%-90% of the weighing threshold, the controller controls the material port adjusting mechanism (8) to reduce the discharge port of the storage hopper (101), reduces the discharge rate, and at the same time controls the translation mechanism (7) to drive the guide plate (6) to approach the end of the conveying mechanism (5), reduces the material falling gap to realize fine material supplement; Step 3: When the weighing sensor (105) detects that the weight of the material reaches the weighing threshold, the controller controls the material port adjusting mechanism (8) to completely block the storage hopper (101), and at the same time controls the translation mechanism (7) to drive the guide plate (6) to block the bottom end of the conveying mechanism (5), so that the residual material in the air is stored in the conveying mechanism (5); Step 4: After the single storage hopper (101) completes the discharging, the conveying mechanism (5) inside is in a blocked state, while the material port adjusting mechanism (8) and the guide plate (6) on the other storage hopper (101) side are in an open state. The discharge cover (3) is driven by the hydraulic cylinder (2) to continue to rise, and the above steps 2 and 3 are repeated to complete the discharging of the other raw material; Step 5: After completing the proportioning of the two materials, the controller controls the hydraulic cylinder (2) to completely reset to drive the discharge cover (3) to rise to the highest position, drives the bottom end of the conveying mechanism (5) to face the corresponding upper conveying belt (103), and pours the residual material stored in the conveying mechanism (5) to the top of the upper conveying belt (103), realizing the recycling of the residual material; Step 6: Repeat steps 1-5 to realize continuous proportioning operation, and dynamically adjust the action parameters of the hydraulic cylinder (2), the material port adjusting mechanism (8), and the translation mechanism (7) through the real-time feedback of the weighing sensor (105).

Images