Gypsum slurry forming method and system based on visual inspection

Abstract

The invention belongs to the technical field of gypsum board processing, and discloses a gypsum slurry forming method based on visual inspection, which comprises the following steps: detecting the upper surface area of a slurry pile at the upstream end of a forming extrusion plate, detecting the thickness value of the slurry pile, setting the volume threshold value of the slurry pile in a control system, the control system calculates the actual volume of the slurry pile according to the received upper surface area and the thickness value, when the actual volume reaches the lower limit of a volume threshold value, the control system controls and slows down the conveying speed of the forming belt, so that the actual volume rises again and is stabilized within the volume threshold value, and when the actual volume reaches the upper limit of the volume threshold value, the control system controls and slows down the conveying speed of the forming belt. The control system controls and accelerates the conveying speed of the forming belt, so that the actual volume falls back and is stabilized within a volume threshold value, volume parameters can completely reflect the real volume of slurry accumulation, human subjective errors are eliminated from the detection source, manual intervention is not needed in the whole process, and the detection accuracy is improved through real-time data feedback and immediate adjustment. And the lag problem of manual adjustment is solved.

Description

Technical Field

[0001] This invention relates to the field of gypsum board processing technology, specifically to a method and system for forming gypsum slurry based on visual inspection. Background Technology

[0002] The gypsum slurry is transported with the lower facing paper to the forming extrusion plate for extrusion molding. Some of the slurry will accumulate at the upstream end of the forming extrusion plate. The accumulation area of ​​the slurry determines the quality of the gypsum board molding. If the accumulation area of ​​the slurry is too small, it is easy to cause material shortage and edge not being wrapped when the gypsum board is molded. If the accumulation area of ​​the slurry is too large, it will leak slurry to both sides of the lower facing paper.

[0003] Currently, the commonly used method for controlling the slurry accumulation area is generally a combination of visual observation and manual adjustment. Operators observe the area of ​​slurry accumulation and control the equipment operation when the slurry accumulation area is too small, such as slowing down the speed of the forming belt conveyor or speeding up the discharge speed of the mixer, so as to keep the slurry accumulation area within a suitable range. When the slurry accumulation area is too large, control the equipment operation, such as speeding up the speed of the forming belt conveyor or slowing down the discharge speed of the mixer, so as to keep the slurry accumulation area within a suitable range.

[0004] However, visual judgment relies entirely on experience and cannot quantify the parameters of the accumulation area, leading to significant errors. Furthermore, manual adjustment is prone to lag, causing the slurry accumulation to fluctuate, resulting in material loss and slurry leakage. Summary of the Invention

[0005] To address this, the present invention provides a method and system for forming gypsum slurry based on visual inspection, which solves the technical problems of existing technologies that rely entirely on experience for visual judgment, cannot quantify the parameters of the accumulation area, resulting in large errors, and manual adjustment is prone to lag, which can easily lead to fluctuating slurry accumulation and cause material loss and leakage.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] A method for molding gypsum slurry based on visual inspection, the method comprising:

[0008] After the gypsum slurry is mixed evenly by the mixer, it is fed onto the lower protective paper on the forming belt and transported with the lower protective paper to the forming extrusion plate to constrain the forming size of the gypsum board.

[0009] The upper surface area of ​​the slurry pile at the upstream end of the forming extrusion plate is detected, and the detected upper surface area is sent to the control system.

[0010] The thickness of the slurry pile is detected, and the detected thickness value is sent to the control system;

[0011] A volume threshold for the slurry pile is set within the control system, and the control system calculates the actual volume of the slurry pile based on the received upper surface area and thickness value.

[0012] When the actual volume reaches the lower limit of the volume threshold, the control system controls to slow down the conveying speed of the forming belt so that the actual volume rises back to and stabilizes within the volume threshold.

[0013] When the actual volume reaches the upper limit of the volume threshold, the control system controls to increase the conveying speed of the forming belt so that the actual volume falls back and stabilizes within the volume threshold.

[0014] The gypsum slurry, after passing through the forming extrusion plate, naturally solidifies and forms downstream of the forming belt.

[0015] Furthermore, the method for controlling the conveying speed of the forming belt involves using a flow detection device located at the discharge port of the mixer to detect the slurry flow rate, and the control system controlling the conveying speed of the forming belt based on the slurry flow rate detected by the flow detection device.

[0016] Furthermore, a visual inspection device positioned directly above the upstream end of the forming extrusion plate is used to detect the upper surface area of ​​the slurry pile.

[0017] Furthermore, the method for detecting the thickness of the slurry pile involves using a first height detection device located at the front of the slurry pile to detect the thickness at the front of the slurry pile, and using a second height detection device located at the rear of the slurry pile to detect the thickness at the rear of the slurry pile. The control system then calculates the thickness value of the slurry pile based on the thickness at the front of the slurry pile and the thickness at the rear of the slurry pile.

[0018] Furthermore, the second height detection device is moved by a displacement driving device, and the displacement driving device controls the position of the second height detection device according to the position of the rear side of the slurry pile detected by the vision detection device.

[0019] A visual inspection-based gypsum slurry molding system includes:

[0020] Controller;

[0021] A forming belt is used to transport gypsum slurry, which naturally solidifies and forms during the transport process. The driving device of the forming belt is connected to the controller.

[0022] A forming extrusion plate is disposed on the forming belt, and the forming extrusion plate is used to constrain the forming size of the gypsum slurry;

[0023] A visual inspection device is installed directly above the upstream end of the forming extrusion plate and connected to the controller. It is used to detect the upper surface area of ​​the slurry pile and send the detected upper surface area value to the controller.

[0024] A height detection device is installed on one side of the upstream end of the forming extrusion plate and connected to the controller. It is used to detect the thickness value of the slurry pile and send the detected thickness value to the controller.

[0025] The controller calculates the actual volume of the slurry pile based on the received upper surface area value and thickness value, and controls the transport speed of the forming belt based on the upper or lower limit of the actual volume threshold.

[0026] Furthermore, a mounting bracket is provided on the feed pipe of the mixer, and a liquid flow meter is installed on the mounting bracket. The liquid flow meter is used to detect the slurry flow rate at the feed pipe of the mixer.

[0027] The liquid flow meter is connected to the controller, and the controller controls the conveying speed of the forming belt based on the slurry flow rate detected by the liquid flow meter.

[0028] Furthermore, the visual inspection device includes a visual detector, which is connected to the controller;

[0029] A portal frame is installed on both sides of the lower protective paper and at the upstream end of the forming extrusion plate. A support plate is installed on the top of the portal frame near the forming extrusion plate, and the vision detector is installed at the bottom of the support plate.

[0030] The bottom of the support plate is also provided with a ring-shaped lamp mounting plate, and lighting fixtures are arranged at the bottom of the ring-shaped lamp mounting plate.

[0031] Furthermore, the first height detection device includes a first height detector, and the second height detection device includes a second height detector, both of which are connected to the controller;

[0032] A fixing rod is horizontally installed on the side of the portal frame and near the forming extrusion plate, and the length of the fixing rod is greater than or equal to the horizontal length between the portal frame and the forming extrusion plate.

[0033] The first height detector is mounted on the fixed rod and positioned directly opposite the front side of the slurry pile.

[0034] Furthermore, a motor mounting base is provided on the side of the portal bracket near the fixed rod, a drive motor is mounted on the motor mounting base, a threaded shaft is mounted on the drive end of the drive motor, a slider is threadedly mounted on the threaded shaft, and a sliding hole is also provided on the slider, through which the fixed rod passes;

[0035] The second height detector is mounted on the slider, and the drive motor drives the threaded shaft to rotate so as to move the second height detector through the slider.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] This invention collects the surface area and thickness of the slurry pile, and the control system calculates the actual volume of the slurry pile, quantifying the amount of slurry accumulation. Compared with the single method of judging the size of the area by visual observation, the volume parameter can completely reflect the true volume of the slurry accumulation, eliminating human subjective error from the source of detection. The control system automatically controls the conveying speed of the forming belt according to the matching of the actual volume and the volume threshold. The whole process does not require manual intervention. Through real-time data feedback and instant adjustment, the lag problem of manual adjustment is solved, ensuring that the slurry accumulation state is stable within a reasonable range. Attached Figure Description

[0038] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0039] Figure 1 A flowchart of a gypsum slurry molding method based on vision detection provided in an embodiment of the present invention;

[0040] Figure 2 A front view structural diagram of a gypsum slurry molding system based on vision detection provided in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the overall structure of the portal frame, visual detector, first height detector, second height detector, and other components provided in the embodiments of the present invention.

[0042] The labels in the diagram represent the following:

[0043] 1. Mixer; 2. Mounting bracket; 3. Liquid flow meter; 4. Molding belt; 5. Vision detector; 6. Gate bracket; 7. Support plate; 8. Ring lamp mounting plate; 9. Lighting fixture; 10. First height detector; 11. Second height detector; 12. Fixing rod; 13. Motor mounting base; 14. Drive motor; 15. Threaded shaft; 16. Slider; 17. Laser emitter; 18. Molding extrusion plate. Detailed Implementation

[0044] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1 As shown, the present invention provides a method for forming gypsum slurry based on visual inspection, the method comprising:

[0046] After the gypsum slurry is mixed evenly by the mixer, it is fed onto the lower protective paper on the forming belt and transported with the lower protective paper to the forming extrusion plate to constrain the forming size of the gypsum board.

[0047] The upper surface area of ​​the slurry pile at the upstream end of the forming extrusion plate is detected, and the detected upper surface area is sent to the control system.

[0048] The thickness of the slurry pile is detected and sent to the control system.

[0049] The volume threshold of the slurry pile is set in the control system, and the control system calculates the actual volume of the slurry pile based on the received upper surface area and thickness value.

[0050] When the actual volume reaches the lower limit of the volume threshold, the control system slows down the conveying speed of the forming belt so that the actual volume rises back to and stabilizes within the volume threshold.

[0051] When the actual volume reaches the upper limit of the volume threshold, the control system speeds up the conveying speed of the forming belt so that the actual volume falls back and stabilizes within the volume threshold.

[0052] After passing through the forming extrusion plate, the gypsum slurry naturally solidifies downstream of the forming conveyor belt. This invention collects the surface area and thickness of the slurry pile, and the control system calculates the actual volume of the pile, quantifying the amount of slurry accumulation. Compared to the single method of judging by visual observation of area size, the volume parameter can completely reflect the true volume of the slurry accumulation, eliminating subjective human error at the source of detection. The control system automatically controls the conveying speed of the forming conveyor belt based on the matching of the actual volume and the volume threshold. The entire process requires no manual intervention. Through real-time data feedback and instant adjustment, the lag problem of manual adjustment is solved, ensuring that the slurry accumulation state remains stable within a reasonable range.

[0053] This embodiment provides a gypsum slurry molding method based on visual inspection, mainly targeting the control technology of slurry accumulation at the upstream end of the molding extrusion plate during the gypsum board molding process.

[0054] The forming extrusion plate needs to compact the slurry. To ensure that the slurry is fully filled during extrusion and to prevent local material shortage, a certain amount of slurry needs to be reserved as a "buffer reserve" at the upstream end of the extrusion forming plate. This reserve slurry naturally forms a stable accumulation state during the forming belt conveyor process, providing a continuous and sufficient material supply for subsequent extrusion processes. When the output value of the current material quantity per unit time is not balanced with the input value of the slurry delivered to the extrusion area by the forming belt per unit time, it will lead to material shortage and leakage. Therefore, it is necessary to control and adjust the slurry accumulation amount.

[0055] Specifically, the slurry is fed from the mixer onto the lower facing paper, which is then transported forward by the forming belt. The slurry on the lower facing paper is flattened by the flattening rollers before entering between the forming extrusion plates. After receiving the surface area and thickness values ​​of the slurry pile, the control system calculates the actual volume of the slurry pile according to the volume formula. When the actual volume reaches the lower limit of the volume threshold, the control system slows down the conveying speed of the forming belt, allowing more of the slurry fed from the mixer to accumulate at the upstream end of the forming extrusion plates. When the actual volume reaches the upper limit of the volume threshold, the control system speeds up the conveying speed of the forming belt to remove the slurry from the pile more quickly.

[0056] The reason why the slurry accumulates at the upstream end of the forming extrusion plate is that the output value of the slurry feed rate per unit time is not balanced with the input value of the forming belt conveying the slurry to the extrusion area per unit time. Therefore, the conveying speed of the forming belt can be controlled according to the slurry feed rate per unit time. Therefore, it is necessary to detect the slurry feed rate in real time. Specifically, the execution method of the forming belt conveying speed control is to use a flow detection device set at the discharge port of the mixer to detect the slurry flow rate, and the control system controls the conveying speed of the forming belt according to the slurry flow rate detected by the flow detection device.

[0057] When the slurry flow rate increases, the control system correspondingly increases the conveying speed of the forming belt; when the slurry flow rate decreases, the control system correspondingly decreases the conveying speed of the forming belt.

[0058] The upper surface area of ​​the slurry pile is detected by a vision inspection device located directly above the upstream end of the forming extrusion plate. The vision inspection device acquires an image of the upper surface of the slurry pile, and the outline of the slurry accumulation area is highlighted through image preprocessing (grayscale conversion and filtering and noise reduction). Then, an edge detection algorithm (such as the Canny algorithm) is used to extract the boundary features between the slurry pile and the background. Finally, the actual area of ​​the upper surface of the slurry pile is calculated by the image recognition system in combination with the calibration parameters of the vision inspection device (the conversion ratio between pixels and actual size).

[0059] The visual inspection device is positioned directly above the slurry pile to minimize the distortion of the captured image, which could lead to inaccurate calculations of the upper surface area.

[0060] As the slurry continues to be transported forward with the lower facing paper, the slurry pile at the upstream end of the forming extrusion plate forms an approximately right-angled trapezoidal shape with a higher front and a lower back. In order to make the volume of the slurry pile calculated by the control system as close as possible to the actual volume of the slurry pile, this invention detects the height of the front side and the height of the rear side of the slurry pile, and takes the average of the thickness of the front side and the thickness of the rear side of the slurry pile as the actual height of the slurry pile. Specifically, the execution method of slurry pile thickness detection is to use a first height detection device set on the front side of the slurry pile to detect the thickness of the front side of the slurry pile, and a second height detection device set on the rear side of the slurry pile to detect the thickness of the rear side of the slurry pile. The control system calculates the thickness value of the slurry pile based on the height of the front side and the height of the rear side of the slurry pile.

[0061] The control system can calculate the average thickness H of the slurry pile according to the formula, H=(H1+H2) / 2), in mm;

[0062] In the formula, H1 is the height of the front side of the slurry pile, in mm;

[0063] H2 is the height of the rear side of the slurry pile, in mm.

[0064] The control system can calculate the volume V of the slurry pile based on the volume formula, V=S*H, in mm³.

[0065] In the formula, S is the upper surface area of ​​the slurry pile, in mm².

[0066] H represents the average thickness of the slurry pile, in mm.

[0067] During the forward transport of the slurry following the lower cover paper, the front side of the slurry pile is always in close contact with the side of the extrusion molding plate inlet. Therefore, the position of the front side of the slurry pile will not change. However, as the amount of slurry pile increases or decreases, the position of the rear side of the slurry pile may change. Therefore, it is necessary to control the second height detection device to move synchronously to detect the thickness of the rear side of the slurry pile. In order to drive the second height detection device to move, a displacement driving device is used to control the movement of the second height detection device. The displacement driving device controls the position of the second height detection device according to the position of the rear side of the slurry pile detected by the vision detection device.

[0068] After the visual inspection device acquires an image of the upper surface of the slurry pile, it obtains the position of the outline of the rear side of the slurry pile through image preprocessing. The displacement driving device controls the position of the second height detection device based on this position, so that the second height detection device is directly facing the rear side of the slurry pile.

[0069] like Figure 2 , Figure 3 As shown, the present invention provides a gypsum slurry molding system based on vision detection, comprising:

[0070] Controller;

[0071] The forming belt 4 is used to transport gypsum slurry, which naturally solidifies and forms during the transport process. The drive device of the forming belt 4 is connected to the controller.

[0072] A forming extrusion plate 18 is disposed on the forming belt 4. The forming extrusion plate 18 is used to constrain the forming size of the gypsum slurry.

[0073] A visual inspection device is set directly above the upstream end of the forming extrusion plate 18 and connected to the controller. It is used to detect the upper surface area of ​​the slurry pile and send the detected upper surface area value to the controller.

[0074] A height detection device is installed on one side of the upstream end of the forming extrusion plate 18 and connected to the controller. It is used to detect the thickness value of the slurry pile and send the detected thickness value to the controller.

[0075] The controller calculates the actual volume of the slurry pile based on the received upper surface area and thickness values, and controls the conveying speed of the forming belt 4 based on the upper or lower limit of the actual volume threshold.

[0076] Among them, the driving device of the forming belt 4 is directly connected to the controller. The speed adjustment command of the controller can be precisely executed by the driving device. When the volume of the slurry pile reaches the lower limit of the volume threshold, the driving device smoothly slows down the belt speed, allowing the slurry sufficient time to accumulate. When the volume of the slurry pile reaches the upper limit of the volume threshold, the driving device quickly increases the speed to promptly drain the excess slurry.

[0077] like Figure 1 As shown, in order to detect the discharge flow rate of mixer 1, a mounting bracket 2 is installed on the discharge pipe of mixer 1, and a liquid flow meter 3 is installed on the mounting bracket 2. The liquid flow meter 3 is used to detect the slurry flow rate at the discharge pipe of mixer 1.

[0078] The liquid flow meter 3 is connected to the controller, and the controller controls the conveying speed of the forming belt 4 based on the slurry flow detected by the liquid flow meter 3.

[0079] The visual inspection device includes a visual detector 5, which is connected to a controller;

[0080] like Figure 3 As shown, a gate-shaped bracket 6 is installed on both sides of the lower protective paper and at the upstream end of the forming extrusion plate 18. A support plate 7 is installed on the top of the gate-shaped bracket 6 near the forming extrusion plate 18, and a vision detector 5 is installed at the bottom of the support plate 7.

[0081] The bottom of the support plate 7 is also provided with a ring-shaped lamp mounting plate 8, and a lighting fixture 9 is arranged at the bottom of the ring-shaped lamp mounting plate 8;

[0082] The lighting fixture 9 provides illumination for the vision detector 5, making the image acquired by the vision detector 5 clear. The vision detector 5 is set in the center of the ring-shaped lighting fixture mounting plate 8, and the lighting fixtures 9 are arranged around the vision detector 5 to provide uniform light intensity for the vision detector 5.

[0083] The first height detection device includes a first height detector 10, and the second height detection device includes a second height detector 11. Both the first height detector 10 and the second height detector 11 are connected to a controller.

[0084] A fixing rod 12 is horizontally installed on the side of the portal frame 6 and on the side close to the forming extrusion plate 18. The length of the fixing rod 12 is greater than or equal to the horizontal length between the portal frame 6 and the forming extrusion plate 18.

[0085] The first height detector 10 is mounted on the fixed rod 12 and is positioned directly opposite the front side of the slurry pile;

[0086] Since the position of the front side of the slurry pile is fixed, the first height detector 10 can be fixedly installed on the fixed rod 12.

[0087] In order to move the second height detector 11, a motor mounting base 13 is provided on the side of the portal bracket 6 near the fixed rod 12. A drive motor 14 is mounted on the motor mounting base 13. A threaded shaft 15 is mounted on the drive end of the drive motor 14. A slider 16 is threaded on the threaded shaft 15. A sliding hole is also provided on the slider 16. The fixed rod 12 passes through the sliding hole.

[0088] The second height detector 11 is mounted on the slider 16. The drive motor 14 drives the threaded shaft 15 to rotate, so as to move the second height detector 11 through the slider 16.

[0089] The visual detector 5 acquires an image of the upper surface of the slurry pile and analyzes it to obtain the position of the rear side of the slurry pile. In order to facilitate the control of the position of the second height detector 11 to move to the rear side of the slurry pile, a laser emitter 17 is also provided on the second height detector 11. The laser emitted by the laser emitter 17 is a horizontal line facing one side of the slurry pile. The drive motor 14 synchronously drives the laser emitter 17 and the second visual detector 5 to move.

[0090] When the second visual detector 5 acquires an image of the upper surface of the slurry pile, the laser emitted by the laser emitter 17 is also acquired in the image. The second visual detector 5 calculates the distance between the laser line and the rear side of the slurry pile and sends the distance to the controller. The controller controls the drive motor 14 to move the second height detector 11 according to the received distance value.

[0091] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A method for forming gypsum slurry based on visual inspection, characterized in that, The method includes: After the gypsum slurry is mixed evenly by the mixer, it is fed onto the lower protective paper on the forming belt and transported with the lower protective paper to the forming extrusion plate to constrain the forming size of the gypsum board. The upper surface area of ​​the slurry pile at the upstream end of the forming extrusion plate is detected, and the detected upper surface area is sent to the control system. The thickness of the slurry pile is detected, and the detected thickness value is sent to the control system; A volume threshold for the slurry pile is set within the control system, and the control system calculates the actual volume of the slurry pile based on the received upper surface area and thickness value. When the actual volume reaches the lower limit of the volume threshold, the control system controls to slow down the conveying speed of the forming belt so that the actual volume rises back to and stabilizes within the volume threshold. When the actual volume reaches the upper limit of the volume threshold, the control system controls to increase the conveying speed of the forming belt so that the actual volume falls back and stabilizes within the volume threshold. The gypsum slurry, after passing through the forming extrusion plate, naturally solidifies and forms downstream of the forming belt.

2. The method for forming gypsum slurry based on visual inspection according to claim 1, characterized in that, The method for controlling the conveying speed of the forming belt involves using a flow detection device located at the discharge port of the mixer to detect the slurry flow rate, and the control system controlling the conveying speed of the forming belt based on the slurry flow rate detected by the flow detection device.

3. The method for forming gypsum slurry based on visual inspection according to claim 1, characterized in that, The upper surface area of ​​the slurry pile is detected using a visual inspection device located directly above the upstream end of the forming extrusion plate.

4. The method for forming gypsum slurry based on visual inspection according to claim 3, characterized in that, The method for detecting the thickness of the slurry pile involves using a first height detection device located at the front of the slurry pile to detect the thickness at the front of the slurry pile, and using a second height detection device located at the rear of the slurry pile to detect the thickness at the rear of the slurry pile. The control system then calculates the thickness value of the slurry pile based on the thickness at the front and the thickness at the rear of the slurry pile.

5. The method for forming gypsum slurry based on visual inspection according to claim 4, characterized in that, The second height detection device is moved by a displacement driving device, and the displacement driving device controls the position of the second height detection device according to the position of the rear side of the slurry pile detected by the vision detection device.

6. A gypsum slurry molding system based on vision detection, used to implement the gypsum slurry molding method according to any one of claims 1-5, characterized in that, include: Controller; A forming belt (4) is used to transport gypsum slurry, which naturally solidifies and forms during the transport process. The driving device of the forming belt (4) is connected to the controller. A forming extrusion plate (18) is disposed on the forming belt (4), and the forming extrusion plate (18) is used to constrain the forming size of the gypsum slurry; A visual inspection device is set directly above the upstream end of the forming extrusion plate (18), connected to the controller, for detecting the upper surface area of ​​the slurry pile and sending the detected upper surface area value to the controller; A height detection device is installed on one side of the upstream end of the forming extrusion plate (18) and connected to the controller. It is used to detect the thickness value of the slurry pile and send the detected thickness value to the controller. The controller calculates the actual volume of the slurry pile based on the received upper surface area value and thickness value, and controls the transport speed of the forming belt (4) based on the upper or lower limit of the actual volume threshold.

7. A gypsum slurry molding system based on vision detection according to claim 6, characterized in that, An installation bracket (2) is provided on the feed pipe of the mixer (1), and a liquid flow meter (3) is installed on the installation bracket (2). The liquid flow meter (3) is used to detect the slurry flow rate at the feed pipe of the mixer (1). The liquid flow meter (3) is connected to the controller, and the controller controls the transport speed of the forming belt (4) based on the slurry flow detected by the liquid flow meter (3).

8. A gypsum slurry molding system based on vision detection according to claim 6, characterized in that, The visual inspection device includes a visual detector (5), which is connected to the controller; A portal frame (6) is installed on both sides of the lower protective paper and at the upstream end of the forming extrusion plate (18). A support plate (7) is installed on the top of the portal frame (6) near the forming extrusion plate (18), and the vision detector (5) is installed at the bottom of the support plate (7). The bottom of the support plate (7) is also provided with an annular lamp mounting plate (8), and lighting fixtures (9) are arranged at the bottom of the annular lamp mounting plate (8).

9. A gypsum slurry molding system based on vision detection according to claim 8, characterized in that, The first height detection device includes a first height detector (10), and the second height detection device includes a second height detector (11). Both the first height detector (10) and the second height detector (11) are connected to the controller. A fixing rod (12) is horizontally installed on the side of the portal frame (6) and near the molding extrusion plate (18). The length of the fixing rod (12) is greater than or equal to the horizontal length between the portal frame (6) and the molding extrusion plate (18). The first height detector (10) is mounted on the fixed rod (12) and positioned directly opposite the front side of the slurry pile.

10. A gypsum slurry molding system based on vision detection according to claim 9, characterized in that, The portal frame (6) is provided with a motor mounting base (13) on the side near the fixed rod (12). A drive motor (14) is mounted on the motor mounting base (13). A threaded shaft (15) is mounted on the drive end of the drive motor (14). A slider (16) is threaded on the threaded shaft (15). A sliding hole is also provided on the slider (16). The fixed rod (12) passes through the sliding hole. The second height detector (11) is mounted on the slider (16), and the drive motor (14) drives the threaded shaft (15) to rotate so as to move the second height detector (11) through the slider (16).

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