An automatic paving and compacting device and method for a similar material model

Abstract

The application discloses a kind of similar material model automatic paving compaction device and method, including base platform, the base platform is used to bear support column, model box and control cabinet, the support column is used to support transverse guide rail crossbeam and longitudinal guide rail crossbeam, the feeding device is used to continuously transport similar material in stirring hopper to model box, the compaction transverse movement slide and feeding transverse movement slide are used to respectively drive compaction head and feeding device move along transverse guide rail crossbeam, the longitudinal movement slide is used to drive transverse guide rail crossbeam move along longitudinal guide rail crossbeam, the Z direction lifting mechanism is used to drive compaction head up and down movement;The application realizes the integrated operation function of automatic feeding, layered paving, scraping leveling and compaction forming in similar material physical model test, also realizes the function of quantization monitoring to paving thickness, material quantity and paving uniformity by micro pressure sensor array, improves the automation degree of model preparation, paving uniformity and compaction controllability, is suitable for use widely.

Description

Technical Field

[0001] This invention relates to physical simulation tests of similar materials in open-pit mining, and particularly to an automatic paving and compaction device and method for similar material models. Background Technology

[0002] Similar material physical simulation tests are commonly used experimental methods in mining, geotechnical engineering, underground engineering, and geological disaster research. The quality of model preparation directly affects the reliability of test results. Existing similar material model preparation processes largely rely on manual weighing, feeding, spreading, and compaction, which suffers from high labor intensity, low spreading efficiency, difficulty in controlling layer thickness, and poor compaction uniformity. Especially in large model boxes and multi-layered paving conditions, localized material accumulation, thickness deviations, and inconsistent density can easily occur, thus affecting the stress transfer, deformation response, and failure evolution patterns within the model. Furthermore, similar materials composed of gypsum, sand, water, and additives have a certain degree of moisture and cohesion, making them prone to bridging, arching, stagnation, and blockage during feeding. Traditional funnel-type or ordinary belt-type feeding devices struggle to achieve continuous, uniform, and quantitative material output. In addition, existing equipment typically lacks real-time monitoring and feedback adjustment of feeding amount, spreading thickness, and spreading uniformity. The quality of model preparation mainly relies on manual experience, resulting in insufficient repeatability and controllability. Therefore, it is necessary to design an automatic paving and compaction device and method for similar material models that integrates automatic feeding, layered paving, leveling and shaping, compaction and bottom sensing monitoring, so as to improve the automation level of physical model preparation, paving uniformity, compaction controllability and test result reliability. Summary of the Invention

[0003] The main objective of this invention is to address the problems of current methods for preparing physical models of similar materials, which rely heavily on manual feeding, spreading, and compaction. These methods often result in difficulties in precisely controlling the thickness of the spread material, insufficient uniformity, inconsistent compaction density, and low preparation efficiency. Furthermore, considering the tendency for bridging, arching, stagnation, and blockage to occur during the feeding process of similar materials such as gypsum-sand, and the difficulty of achieving continuous, stable, and quantitative material output using traditional feeding methods, this invention provides an automated paving and compaction device and method for similar material models. This device integrates automated feeding, layered paving, leveling and shaping, and compaction of similar materials into a single operation. This invention realizes the functions of anti-clogging, continuous and quantitative conveying of similar materials by the feeding device, and also has the functions of lateral movement, longitudinal movement and Z-axis lifting and coordinating operation, which can meet the needs of full-width and multi-layer paving and compaction of the model box. In addition, the invention collects the bottom load response signal during the paving and compaction process by a micro pressure sensor array at the bottom of the model box, realizing the quantitative monitoring and feedback adjustment of the total amount of material, the thickness of the material, and the uniformity of the material, ensuring the uniformity, density and controllability of the similar material model preparation process, and providing a reliable model preparation equipment for physical simulation tests of similar materials in mining, geotechnical engineering and underground engineering.

[0004] An automatic paving and compaction device and method for similar material models includes a base platform (10), which is used to support a support column (4), a model box (9) and a control cabinet (3). The support column (4) is used to support a transverse guide beam (5) and a longitudinal guide beam (12). The feeding device (2) is used to continuously transport similar materials in the mixing hopper (1) to the model box (9). The compaction transverse moving slide (6-1) and the feeding transverse moving slide (6-2) are used to drive the compaction head (8) and the feeding device (2) to move along the transverse guide beam (5) respectively. The longitudinal moving slide (13) is used to drive the transverse guide beam (5) to move along the longitudinal guide beam (12). The Z-axis lifting mechanism (7) is used to drive the compaction head (8) to move up and down, thereby realizing automatic feeding, layered paving, leveling and compaction of similar materials in the model box (9).

[0005] Preferably, the feeding device (2) includes a clamping lock (2-1), a left-side built-in protruding belt (2-2), a guide roller (2-3), a bottom discharge mechanism (2-4), a drive motor (2-5), a right-side protruding belt (2-6), a feeding interface (2-7), a roller (2-8), and a bottom protruding belt (2-9); the feeding interface (2-7) is located on the upper part of the feeding device (2) and communicates with the mixing hopper (1), and the bottom discharge mechanism (2-4) is located on the lower part of the feeding device (2) for discharging similar materials in a quantitative manner.

[0006] Preferably, the left-side built-in protruding belt (2-2) and the right-side protruding belt (2-6) are respectively arranged on opposite sides of the inner wall of the feeding device (2). The surfaces of the left-side built-in protruding belt (2-2), the right-side protruding belt (2-6) and the bottom protruding belt (2-9) are all provided with spaced protrusions, which are used to move, break arches and assist in conveying gypsum-sand similar materials, thereby reducing bridging, retention or blockage of similar materials inside the feeding device (2).

[0007] Preferably, the drive motor (2-5) is connected to the roller (2-8) for transmission. The roller (2-8) cooperates with the guide roller (2-3) to drive the left built-in protruding belt (2-2), the right protruding belt (2-6) and the bottom protruding belt (2-9) to run, so that similar materials enter the feeding device (2) through the feeding interface (2-7), fall with the assistance of the two protruding belts, and are continuously, stably and quantitatively discharged by the bottom discharge mechanism (2-4).

[0008] Preferably, the compaction transverse moving slide (6-1) and the feeding transverse moving slide (6-2) are slidably connected to the transverse guide beam (5). The compaction transverse moving slide (6-1) is used to drive the Z-axis lifting mechanism (7) and the compaction head (8) to move along the transverse guide beam (5). The feeding transverse moving slide (6-2) is used to drive the feeding device (2) to move along the transverse guide beam (5), thereby realizing the transverse position adjustment of the compaction mechanism and the feeding device (2) above the model box (9).

[0009] Preferably, the longitudinal guide beam (12) is mounted on the support column (4), the longitudinal moving slide (13) is slidably connected to the longitudinal guide beam (12), and the transverse guide beam (5) is connected to the longitudinal moving slide (13), so that the transverse guide beam (5), the feeding device (2), the Z-axis lifting mechanism (7) and the compaction head (8) can move as a whole along the longitudinal guide beam (12), thereby achieving full-width coverage operation in the transverse and longitudinal range above the model box (9).

[0010] Preferably, the Z-axis lifting mechanism (7) is connected to the compaction head (8) and is used to drive the compaction head (8) to move vertically up and down. The compaction head (8), with the cooperation of the compaction transverse moving slide (6-1), the longitudinal moving slide (13) and the Z-axis lifting mechanism (7), performs layered paving, scraping and shaping, vibration compaction or static pressing of similar materials in the model box (9).

[0011] Preferably, the micro pressure sensor array (11) is arranged along the bottom of the model box (9) and electrically connected to the control cabinet (3) to collect pressure signals at different positions at the bottom of the model box (9) in real time; the control cabinet (3) analyzes the total amount of material fed, the thickness of the material and the uniformity of the material according to the pressure signal, and is used to adjust the feeding speed, the lateral movement path, the longitudinal movement path, the Z-axis lifting stroke and the compaction parameters.

[0012] Preferably, a method for using an automatic paving and compaction device for similar material models includes the following steps: Step 1: Add similar materials into the mixing hopper (1), and set the feeding speed, spreading thickness, lateral movement path, longitudinal movement path and compaction parameters through the control cabinet (3); Step 2: Start the feeding device (2). The drive motor (2-5) drives the left built-in protruding belt (2-2), the right protruding belt (2-6) and the bottom protruding belt (2-9) to run, so that similar materials are continuously moved, broken and conveyed to the bottom discharge mechanism (2-4) in the feeding device (2). Step 3: With the cooperation of the feeding transverse sliding block (6-2) and the longitudinal sliding block (13), the feeding device (2) lays similar materials into the model box (9) according to the set path; Step 4: The Z-axis lifting mechanism (7) drives the compaction head (8) to descend. With the cooperation of the compaction lateral moving slide (6-1) and the longitudinal moving slide (13), the compaction head (8) scrapes, shapes and compacts similar materials. Step 5: The micro pressure sensor array (11) collects the load response signal at the bottom of the model box (9) and transmits the signal to the control cabinet (3). The control cabinet (3) analyzes the total amount of material, the thickness of the material and the uniformity of the material, and adjusts the subsequent feeding, spreading and compaction processes according to the analysis results until the set model paving thickness and compaction state are achieved.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention integrates the feeding, spreading, leveling, and compaction processes in the preparation of similar material models into one unit by setting up a mixing hopper, a feeding device, a transverse guide beam, a longitudinal guide beam, a Z-axis lifting mechanism, and a compaction head. This reduces operational errors caused by manual feeding, spreading, and compaction, and improves the automation level and work efficiency of similar material physical model preparation.

[0014] This invention, by incorporating a left-side protruding belt, a right-side protruding belt, and a bottom protruding belt within the feeding device, enables gypsum-sand similar materials to be continuously agitated, broken up, and assisted in conveying during the feeding process. This reduces the risk of bridging, arching, retention, and blockage caused by the moisture content and cohesiveness of similar materials, and improves the continuity, stability, and quantitativeity of the feeding process.

[0015] This invention enables the feeding device and compaction head to move laterally, longitudinally, and vertically above the model box through the cooperation of a compaction lateral moving slide, a feeding lateral moving slide, a longitudinal moving slide, and a Z-axis lifting mechanism. This satisfies the full-width, multi-layer, and zoned paving and compaction requirements of the model box, and improves the coverage of paving and the controllability of compaction operations.

[0016] This invention, by setting a micro pressure sensor array at the bottom of the model box, can collect the bottom load response signal in real time during the material spreading and compaction process, and use it to invert the total amount of material fed, the thickness of the material spread, and the uniformity of the material spread, thus transforming the traditional model preparation process that relies on human experience judgment into a quantitative control process that can be monitored, fed back, and adjusted.

[0017] This invention can improve the uniformity of material spreading, the consistency of compaction, and the repeatability of tests in the preparation process of similar material models, and reduce model errors caused by local material piling, thickness deviation, and uneven density. It provides reliable automated preparation equipment for physical simulation tests of similar materials in mining, geotechnical engineering, underground engineering, and geological disasters. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a schematic diagram of the feeding device of the present invention.

[0019] In the diagram: 1-Mixing hopper; 2-Feeding device; 2-1 Clamping lock; 2-2 Left-side built-in protruding belt; 2-3 Guide roller; 2-4 Bottom discharge mechanism; 2-5 Drive motor; 2-6 Right-side protruding belt; 2-7 Feeding interface; 2-8 Roller; 2-9 Bottom protruding belt; 3-Control cabinet; 4-Supporting column; 5-Transverse guide beam; 6-1 Compacting transverse moving slide; 6-2 Feeding transverse moving slide; 7-Z-axis lifting mechanism; 8-Compacting head; 9-Model box; 10-Base platform; 11-Miniature pressure sensor array base platform; 12-Longitudinal guide beam; 13-Longitudinal moving slide. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figure 1 As shown in Figure 3, an automatic paving and compaction device and method for similar material models includes a mixing hopper (1), a feeding device (2), a control cabinet (3), a support column (4), a transverse guide beam (5), a compaction transverse moving slide (6-1), a feeding transverse moving slide (6-2), a Z-axis lifting mechanism (7), a compaction head (8), a model box (9), a base platform (10), a micro pressure sensor array (11), a longitudinal guide beam (12), and a longitudinal moving slide (13). The base platform (10) is used to support the support column (4), the model box (9) and the control cabinet (3). The support column (4) is used to support the transverse guide beam (5) and the longitudinal guide beam (12). The feeding device (2) is used to continuously transport similar materials in the mixing hopper (1) to the model box (9). The compaction transverse moving slide (6-1) and the feeding transverse moving slide (6-2) are used to drive the compaction head (8) and the feeding device (2) to move along the transverse guide beam (5) respectively. The longitudinal moving slide (13) is used to drive the transverse guide beam (5) to move along the longitudinal guide beam (12). The Z-axis lifting mechanism (7) is used to drive the compaction head (8) to move up and down, thereby realizing the automatic feeding, layered laying, leveling and shaping and compaction of similar materials in the model box (9).

[0022] Specifically, the mixing hopper (1) is positioned above or to one side of the feeding device (2) for temporarily storing and feeding similar materials composed of gypsum, sand, water, and other additives. The discharge end of the mixing hopper (1) is connected to the feed inlet (2-7) of the feeding device (2), allowing similar materials to enter the feeding device (2) from the mixing hopper (1), thereby reducing errors in manual handling and feeding processes.

[0023] Specifically, the feeding device (2) includes a clamping lock (2-1), a left-side built-in protruding belt (2-2), a guide roller (2-3), a bottom discharge mechanism (2-4), a drive motor (2-5), a right-side protruding belt (2-6), a feeding interface (2-7), a roller (2-8), and a bottom protruding belt (2-9). The clamping lock (2-1) is used to fix and lock the connection part of the feeding device (2), the feeding interface (2-7) is used to receive similar materials output from the mixing hopper (1), and the bottom discharge mechanism (2-4) is used to discharge similar materials into the mold box (9).

[0024] Specifically, the left-side built-in protruding belt (2-2) and the right-side protruding belt (2-6) are respectively located on opposite sides inside the feeding device (2), and the surfaces of the left-side built-in protruding belt (2-2) and the right-side protruding belt (2-6) are provided with protruding structures. Since gypsum-sand similar materials have a certain moisture content and cohesiveness, they are prone to bridging, arching, stagnation and blockage in ordinary funnels. Through the rolling and pushing action of the left-side built-in protruding belt (2-2) and the right-side protruding belt (2-6), the material can be continuously disturbed, so that the similar material falls stably along the inner wall of the feeding device (2), thereby improving the continuity and stability of feeding.

[0025] Specifically, the bottom raised belt (2-9) is located inside the bottom discharge mechanism (2-4), and the surface of the bottom raised belt (2-9) is provided with spaced raised structures. The drive motor (2-5) is connected to the roller (2-8) for transmission. The roller (2-8) and the guide roller (2-3) work together to drive the left built-in raised belt (2-2), the right raised belt (2-6) and the bottom raised belt (2-9) to run, so that the similar material entering the feeding device (2) can be lowered with the assistance of the raised belts on both sides, and then driven by the bottom raised belt (2-9) to the bottom discharge mechanism (2-4) for discharge, thereby realizing the continuous, stable and quantitative discharge of similar materials.

[0026] Specifically, a compaction transverse moving slide (6-1) and a feeding transverse moving slide (6-2) are respectively provided on the transverse guide beam (5). The compaction transverse moving slide (6-1) is used to drive the Z-axis lifting mechanism (7) and the compaction head (8) to move along the transverse guide beam (5), and the feeding transverse moving slide (6-2) is used to drive the feeding device (2) to move along the transverse guide beam (5). Through this structure, the feeding device (2) and the compaction head (8) can adjust their working positions in the width direction of the model box (9) to meet the material laying and compaction requirements of model boxes (9) of different widths.

[0027] Specifically, the longitudinal guide beam (12) is mounted on the support column (4), the longitudinal sliding block (13) is slidably connected to the longitudinal guide beam (12), and the transverse guide beam (5) is connected to the longitudinal sliding block (13). By moving the longitudinal sliding block (13) along the longitudinal guide beam (12), the transverse guide beam (5), the feeding device (2), the Z-axis lifting mechanism (7), and the compaction head (8) can be moved as a whole along the length of the model box (9), thereby realizing automatic material spreading and compaction operations within the full width of the model box (9).

[0028] Specifically, the Z-axis lifting mechanism (7) is connected to the compaction head (8) and is used to drive the compaction head (8) to move vertically up and down. Under the combined action of the compaction transverse moving slide (6-1), the longitudinal moving slide (13), and the Z-axis lifting mechanism (7), the compaction head (8) can level, shape, and compact the similar material laid in layers in the model box (9). By adjusting the descent stroke and compaction parameters of the Z-axis lifting mechanism (7), the compaction thickness and degree of compaction of a single layer of similar material can be controlled.

[0029] Specifically, the model box (9) is set on the base platform (10) and is used to support the layered paving of similar materials. A miniature pressure sensor array (11) is set at the bottom of the model box (9), which is electrically connected to the control cabinet (3) and is used to collect load response signals at different positions at the bottom of the model box (9) during the paving and compaction process. By analyzing the bottom load response signals, the total amount of material fed, the paving thickness and the paving uniformity can be inverted, thereby realizing the quantitative monitoring of the paving process of similar materials.

[0030] Specifically, the control cabinet (3) is electrically connected to the feeding device (2), the drive motor (2-5), the compaction lateral moving slide (6-1), the feeding lateral moving slide (6-2), the Z-axis lifting mechanism (7), the longitudinal moving slide (13), and the micro pressure sensor array (11). The control cabinet (3) can be used to set the feeding speed, lateral moving path, longitudinal moving path, Z-axis lifting stroke, compaction parameters, and sensor data acquisition parameters, thereby realizing automatic control and feedback adjustment of the similar material model preparation process.

[0031] A method for using an automated paving and compaction device for similar material models includes the following steps: Step 1: Add similar materials into the mixing hopper (1), and set the feeding speed, spreading thickness, lateral movement path, longitudinal movement path and compaction parameters through the control cabinet (3); Step 2: Start the feeding device (2). The drive motor (2-5) drives the left built-in protruding belt (2-2), the right protruding belt (2-6) and the bottom protruding belt (2-9) to run, so that similar materials are continuously moved, broken and conveyed to the bottom discharge mechanism (2-4) in the feeding device (2). Step 3: With the cooperation of the feeding transverse sliding block (6-2) and the longitudinal sliding block (13), the feeding device (2) lays similar materials into the model box (9) according to the set path; Step 4: The Z-axis lifting mechanism (7) drives the compaction head (8) to descend. With the cooperation of the compaction lateral moving slide (6-1) and the longitudinal moving slide (13), the compaction head (8) scrapes, shapes and compacts similar materials. Step 5: The micro pressure sensor array (11) collects the load response signal at the bottom of the model box (9) and transmits the signal to the control cabinet (3). The control cabinet (3) analyzes the total amount of material, the thickness of the material and the uniformity of the material, and adjusts the subsequent feeding, spreading and compaction processes according to the analysis results until the set model paving thickness and compaction state are achieved.

[0032] The present invention achieves integrated automatic operation of feeding, spreading, leveling, compaction and monitoring feedback in the process of similar material model preparation through the synergistic effect of feeding device (2), transverse guide beam (5), longitudinal guide beam (12), Z-axis lifting mechanism (7), compaction head (8) and micro pressure sensor array (11), which can improve the uniformity of model laying, compaction consistency and test repeatability.

[0033] The electronic or mechanical components used in this invention, such as motors, slides, guide rails, sensors, and control cabinets, can all be general standard parts, or conventional parts that can be selected and configured by those skilled in the art according to actual test requirements. Their structures and principles can be obtained by those skilled in the art through technical manuals or conventional test methods.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes, substitutions, and modifications can be made to the invention without departing from its spirit and scope, and all such changes, substitutions, and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic paving and compaction device for a similar material model, comprising a base platform (10) for supporting a support column (4), a model box (9), and a control cabinet (3), wherein the support column (4) supports a transverse guide beam (5) and a longitudinal guide beam (12), a feeding device (2) for continuously conveying similar materials in a mixing hopper (1) to the model box (9), and a compaction transverse moving slide (6-1) and a feeding transverse moving slide (6-2). The two devices are respectively set on the transverse guide beam (5) and used to drive the compaction head (8) and the feeding device (2) to move along the transverse guide beam (5). The longitudinal moving slide (13) is set on the longitudinal guide beam (12) and used to drive the transverse guide beam (5) to move along the longitudinal guide beam (12). The Z-axis lifting mechanism (7) is used to drive the compaction head (8) to move up and down, thereby realizing the automatic feeding, layered laying, leveling and shaping and compaction of similar materials in the model box (9).

2. The automatic paving and compaction device for similar material models according to claim 1, characterized in that: The feeding device (2) includes a clamping lock (2-1), a left-side built-in protruding belt (2-2), a guide roller (2-3), a bottom discharge mechanism (2-4), a drive motor (2-5), a right-side protruding belt (2-6), a feeding interface (2-7), a roller (2-8), and a bottom protruding belt (2-9). The feeding interface (2-7) is located on the upper part of the feeding device (2) and communicates with the mixing hopper (1). The bottom discharge mechanism (2-4) is located on the lower part of the feeding device (2) and is used to discharge similar materials in a quantitative manner.

3. The automatic paving and compaction device for similar material models according to claim 2, characterized in that: The left-side built-in protruding belt (2-2) and the right-side protruding belt (2-6) are respectively set on opposite sides of the inner wall of the feeding device (2). The surfaces of the left-side built-in protruding belt (2-2), the right-side protruding belt (2-6) and the bottom protruding belt (2-9) are all provided with spaced protruding structures, which are used to move, break arches and assist in conveying gypsum-sand similar materials, and reduce bridging, retention or blockage of similar materials inside the feeding device (2).

4. The automatic paving and compaction device for similar material models according to claim 2, characterized in that: The drive motor (2-5) is connected to the roller (2-8) for transmission. The roller (2-8) cooperates with the guide roller (2-3) to drive the left built-in protruding belt (2-2), the right protruding belt (2-6) and the bottom protruding belt (2-9) to run, so that similar materials enter the feeding device (2) through the feeding interface (2-7), fall with the assistance of the two protruding belts, and are continuously, stably and quantitatively discharged by the bottom discharge mechanism (2-4).

5. The automatic paving and compaction device for similar material models according to claim 1, characterized in that: The compaction transverse moving slide (6-1) and the feeding transverse moving slide (6-2) are slidably connected to the transverse guide beam (5). The compaction transverse moving slide (6-1) is used to drive the Z-axis lifting mechanism (7) and the compaction head (8) to move along the transverse guide beam (5). The feeding transverse moving slide (6-2) is used to drive the feeding device (2) to move along the transverse guide beam (5), thereby realizing the transverse position adjustment of the compaction mechanism and the feeding device (2) above the model box (9).

6. The automatic paving and compaction device for similar material models according to claim 1, characterized in that: The longitudinal guide beam (12) is set on the support column (4), the longitudinal moving slide (13) is slidably connected to the longitudinal guide beam (12), and the transverse guide beam (5) is connected to the longitudinal moving slide (13), so that the transverse guide beam (5), the feeding device (2), the Z-axis lifting mechanism (7) and the compaction head (8) can move as a whole along the longitudinal guide beam (12), thereby realizing full-width coverage operation in the transverse and longitudinal range above the model box (9).

7. The automatic paving and compaction device for similar material models according to claim 1, characterized in that: The Z-axis lifting mechanism (7) is connected to the compaction head (8) and is used to drive the compaction head (8) to move vertically up and down. With the cooperation of the compaction transverse moving slide (6-1), the longitudinal moving slide (13) and the Z-axis lifting mechanism (7), the compaction head (8) performs layered paving, scraping and shaping, vibration compaction or static pressing of similar materials in the model box (9).

8. The automatic paving and compaction device for similar material models according to claim 1, characterized in that: The micro pressure sensor array (11) is arranged along the bottom of the model box (9) and electrically connected to the control cabinet (3) to collect pressure signals at different positions at the bottom of the model box (9) in real time. The control cabinet (3) analyzes the total amount of material fed, the thickness of the material and the uniformity of the material according to the pressure signal, and is used to adjust the feeding speed, the lateral movement path, the longitudinal movement path, the Z-axis lifting stroke and the compaction parameters.

9. A method of using an automatic paving and compaction device based on a similar material model according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Add similar materials into the mixing hopper (1), and set the feeding speed, spreading thickness, lateral movement path, longitudinal movement path and compaction parameters through the control cabinet (3); Step 2: Start the feeding device (2). The drive motor (2-5) drives the left built-in protruding belt (2-2), the right protruding belt (2-6) and the bottom protruding belt (2-9) to run, so that similar materials are continuously moved, broken and conveyed to the bottom discharge mechanism (2-4) in the feeding device (2). Step 3: With the cooperation of the feeding transverse sliding block (6-2) and the longitudinal sliding block (13), the feeding device (2) lays similar materials into the model box (9) according to the set path; Step 4: The Z-axis lifting mechanism (7) drives the compaction head (8) to descend. With the cooperation of the compaction lateral moving slide (6-1) and the longitudinal moving slide (13), the compaction head (8) scrapes, shapes and compacts similar materials. Step 5: The micro pressure sensor array (11) collects the load response signal at the bottom of the model box (9) and transmits the signal to the control cabinet (3). The control cabinet (3) analyzes the total amount of material, the thickness of the material and the uniformity of the material, and adjusts the subsequent feeding, spreading and compaction processes according to the analysis results until the set model paving thickness and compaction state are achieved.

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