Artificial stone patterned plate 3D printing device and manufacturing method thereof

Abstract

The present invention discloses a 3D printing device for artificial stone patterned plates and a manufacturing method thereof, relating to the field of artificial stone manufacturing technology. The device comprises: a workbench on which a mold frame for casting the patterned plates is placed; a support frame mounted above the workbench; a movable block slidably connected to the support frame and located above the workbench; a pouring mechanism mounted on the movable block and used for printing the pattern of the patterned plates and pouring the base color; a first movable mechanism for driving the movable block to move along the width of the workbench; a second movable mechanism for driving the support frame to move along the length of the workbench; a lifting mechanism for adjusting the vertical movement of the pouring mechanism; and a control module electrically connected to the first movable mechanism, the second movable mechanism, the lifting mechanism, and the pouring mechanism. This application achieves the effect of realizing the automated production of artificial stone patterned plates and improving production efficiency.

Description

Technical Field

[0001] The present application relates to the field of artificial stone manufacturing technology, and in particular to a 3D printing device for artificial stone patterned plates and a manufacturing method thereof. Background Art

[0002] Artificial stone patterned plate is a kind of artificial synthetic decorative material. Compared with natural stone, it is more resistant to pressure, bending and penetration, and has good texture and aesthetics.

[0003] At present, the artificial stone patterned plates on the market are mainly made by manually arranging the mold for forming the pattern in the mold frame, and then pouring the slurry of the base color of the artificial stone patterned plate to fill the other areas of the mold frame except the pattern mold. After the slurry of the base color of the artificial stone patterned plate is fixed and does not flow, the pattern mold inside the mold frame is pulled out of the mold frame, leaving the semi-solidified base color slurry after setting and the pattern gap left after the pattern mold is pulled out. After cleaning the impurities in the gap (base color slurry or dust that fell when the pattern mold was pulled out, etc.), the pattern color slurry of the artificial stone patterned plate is then filled in the pattern gap. Finally, the entire mold frame is left to solidify at room temperature or medium temperature, thereby completing the production of the artificial stone patterned plate.

[0004] However, in the above production process, multiple workers are required to collaborate to place the mold, which results in low production efficiency. Therefore, this application proposes a new technical solution. Summary of the Invention

[0005] In order to improve efficiency, the present application provides an artificial stone patterned plate 3D printing device and a manufacturing method thereof.

[0006] In the first aspect, the present application provides a 3D printing device for artificial stone patterned plates, which adopts the following technical solutions:

[0007] A 3D printing device for artificial stone patterned plates, comprising:

[0008] a workbench on which a mold frame for casting the patterned plate is placed;

[0009] A support frame, which is mounted above the workbench;

[0010] a moving block, which is slidably connected to the support frame and is located above the workbench;

[0011] A pouring mechanism, which is mounted on the moving block and is used for pouring the pattern of the patterned plate and the base color;

[0012] Moving mechanism 1, which is used to drive the moving block to move along the width direction of the workbench;

[0013] Moving mechanism 2, which is used to drive the support frame to move along the length direction of the workbench;

[0014] A lifting mechanism for adjusting the vertical movement of the pouring mechanism; and

[0015] a control module electrically connected to the first moving mechanism, the second moving mechanism, the lifting mechanism, and the pouring mechanism;

[0016] Wherein, the control module is configured as follows:

[0017] When receiving a print instruction from the operator, the system searches the preset control parameter database based on the pre-uploaded print effect diagram to determine the matching parameter solution.

[0018] Based on the parameter scheme, the moving mechanism 1, the moving mechanism 2, the lifting mechanism and the pouring mechanism are controlled to respond.

[0019] Optionally, the system further includes a camera and a display, wherein the lens of the camera faces the mold frame on the workbench, and the camera and the display are electrically connected to a control module, and the control module is configured as follows:

[0020] Get the video data fed back by the camera;

[0021] The video data is processed to obtain a real-time image of the pattern in the mold frame and identify the pattern direction characteristics in the image;

[0022] Establish a three-dimensional space coordinate system and mark the pattern direction features in the three-dimensional space coordinate system;

[0023] A three-dimensional model is generated according to the punctuation points and displayed on a display.

[0024] Optionally, the control module is further configured to:

[0025] Compare the 3D model with the printed rendering to obtain the actual difference data and record the current abnormal date;

[0026] If the actual difference data exceeds the preset qualified range, the preset difference cause analysis will be performed and a matching prompt will be output based on the analysis results.

[0027] Optionally, the pouring mechanism includes a pattern pouring head and a base color pouring head mounted on a movable block, the pattern pouring head and the base color pouring head being respectively connected to a preset slurry extruder output end via a pipe, the pipe of the pattern pouring head being provided with a flow meter, the flow meter being electrically connected to a control module, and the control module performing a difference cause analysis, which includes:

[0028] Get the model of the pattern pouring head;

[0029] Based on the model of the pattern pouring head, the corresponding factory date and theoretical maintenance cycle are obtained from the designated cloud;

[0030] Call the abnormal date and obtain the actual usage period based on the abnormal date and the factory date;

[0031] Based on the actual usage cycle, determine whether it exceeds the theoretical maintenance cycle. If so, output a matching maintenance prompt; if not, execute the suspected blockage analysis process;

[0032] The suspected obstruction analysis process includes:

[0033] Obtain the actual slurry discharge volume fed back by the flow meter;

[0034] Calculate the difference between the required slurry amount corresponding to the pre-uploaded pattern and the actual sprayed amount to obtain the difference;

[0035] If the difference exceeds the preset loss range, it is determined that the pouring head is suspected to be blocked and a matching replacement prompt is output.

[0036] Optionally, the control module performs difference cause analysis, which further includes:

[0037] If a signal indicating that the pouring head replacement is complete is received from the pouring mechanism, the current replacement date is recorded and bound to the replaced pouring head model to generate a replacement record;

[0038] Determine whether the actual difference data within a preset N consecutive times after the replacement date meets the preset compliance conditions;

[0039] If so, it is determined that the replaced pouring head is blocked and marked;

[0040] According to the current replacement date and the factory date, the actual replacement cycle of the pouring head of this model is obtained;

[0041] Update theoretical maintenance cycles based on actual replacement cycles.

[0042] Optionally, the lifting mechanism includes a positioning plate, a threaded rod, and a servo motor. A lifting slot is provided on the side wall of the moving block. The threaded rod is rotatably connected to the lifting slot. The servo motor is fixedly connected to the inner wall of the lifting slot. The output shaft of the servo motor is coaxially fixed to the end of the threaded rod. The threaded rod is threadedly connected to a lifting block. The side wall of the lifting block fits into the inner wall of the lifting slot. One end of the lifting block extends out of the lifting slot and is fixedly connected to the positioning plate. The pattern pouring head and the base color pouring head are both fixedly mounted on the positioning plate. The servo motor is electrically connected to the control module.

[0043] Optionally, the moving mechanism 1 includes a linear motor fixedly connected to the upper surface of the support frame, the slide of the linear motor is fixedly connected to the moving block, and a bellows for covering the slide rail of the linear motor is provided between the support frame and the moving block.

[0044] Optionally, the positioning plate is fixedly connected to two nozzles for spraying slurry that blurs the pattern and background color boundary line of the patterned plate. The two nozzles are respectively arranged on both sides of the pattern pouring head, and the nozzles are connected to the preset slurry extruder output end through a pipe.

[0045] In a second aspect, the present application provides a 3D printing method for manufacturing artificial stone patterned plates, which adopts the following technical solutions:

[0046] A 3D printing manufacturing method for an artificial stone patterned plate, which uses any of the above-mentioned 3D printing devices for artificial stone patterned plates to manufacture the artificial stone patterned plates.

[0047] To sum up, the present application includes the following beneficial technical effects: placing a mold frame on a workbench, and controlling the position of the pouring mechanism by controlling the moving mechanism one, the moving mechanism two and the lifting mechanism, so that the pouring mechanism alternately pours artificial stone pattern slurry and artificial stone base color slurry on the mold frame, and forms a complete artificial stone pattern plate after solidification, thereby improving the manufacturing efficiency of artificial stone pattern plates by traditional manual mold pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of the device of this application.

[0049] Figure 2 It is a structural diagram of the moving mechanism 1 in the device of the present application.

[0050] Figure 3 It is a partial structural diagram of the moving block in the device of the present application.

[0051] Figure 4 It is an architectural diagram of the control module in the device of this application.

[0052] Explanation of the accompanying symbols: 1. Workbench; 2. Support frame; 3. Moving block; 4. Pouring mechanism; 5. Moving mechanism 1; 6. Moving mechanism 2; 7. Lifting mechanism; 8. Control module; 9. Camera; 10. Display; 11. Flow meter; 71. Positioning plate; 72. Threaded rod; 73. Servo motor; 74. Lifting trough; 75. Lifting block; 41. Pattern pouring head; 42. Base color pouring head; 43. Nozzle; 21. Bellows. DETAILED DESCRIPTION

[0053] The following is combined with Figure 1-4 This application is described in further detail.

[0054] The embodiment of the present application discloses a 3D printing device for artificial stone patterned plates.

[0055] Reference Figure 1 、 Figure 2 and Figure 3 The artificial stone patterned plate 3D printing device includes a workbench 1, a support frame 2, a movable block 3, a pouring mechanism 4, a movable mechanism 1 5, a movable mechanism 2 6, a lifting mechanism 7, and a control module 8. A mold frame for pouring the patterned plate is placed on the workbench 1. In this embodiment, the support frame 2 is a gantry structure and is arranged along the width of the workbench 1. The movable block 3 is slidably connected to the horizontal section of the support frame 2, positioning it above the workbench 1. The pouring mechanism 4 is mounted on the movable block 3 and is used to print the pattern of the patterned plate and pour the base color. The pouring mechanism 4 includes a pattern pouring head 41 and a base color pouring head 42 mounted on the movable block 3. Each of the pattern pouring head 41 and the base color pouring head 42 is connected to a preset slurry extruder output via a pipe. A flow meter 11 is installed in the pipe of the pattern pouring head 41. The flow meter 11 is electrically connected to the control module 8 and measures the actual slurry discharge from the pattern pouring head 41.

[0056] Reference Figure 4 The moving mechanism 1 5 is used to drive the moving block 3 to move along the width direction of the workbench 1, and the moving mechanism 2 6 is used to drive the support frame 2 to move along the length direction of the workbench 1. The lifting mechanism 7 is used to adjust the vertical movement of the pouring mechanism 4. In this embodiment, the control module 8 includes a PLC control cabinet and a computer electrically connected to the PLC control cabinet. The PLC control cabinet is electrically connected to the moving mechanism 1 5, the moving mechanism 2 6, the lifting mechanism 7, and the pouring mechanism 4. It can be understood that in this application, electrical connection includes electrical signal connection, wireless data connection, wired data connection, etc., and generally refers to electrical connection relationship.

[0057] Among them, the control module 8 is configured as follows:

[0058] 1) When receiving the printing instruction initiated by the operator, the preset control parameter database is searched according to the pre-uploaded printing effect diagram to determine the matching parameter solution;

[0059] It can be understood that the printing instruction can be through the print start button prefabricated on the device of this application. When it is necessary to print and manufacture artificial stone patterned plates, the operator presses the print start button to start the device. It should be noted that before preparing for printing, the printed renderings need to be uploaded. This device has the basic functions of the existing 3D printer. Therefore, according to the uploaded printing renderings, the control parameter database is searched. The control parameter database stores the control parameters of the moving mechanism 1 5, the moving mechanism 2 6, the lifting mechanism 7 and the pouring mechanism 4 according to different printing renderings, such as the movement amount, lifting amount and pouring amount. The specific control parameters are debugged by professionals.

[0060] 2) Based on the parameter scheme, the moving mechanism 1 5, the moving mechanism 2 6, the lifting mechanism 7 and the pouring mechanism 4 are controlled to respond.

[0061] Through the above arrangement, a mold frame is placed on the workbench 1, and the position of the pouring mechanism 4 is moved by controlling the moving mechanism 1 5, the moving mechanism 2 6, and the lifting mechanism 7, so that the pouring mechanism 4 alternately pours the artificial stone pattern slurry and the artificial stone base color slurry on the mold frame, and forms a complete artificial stone pattern plate after solidification, thereby improving the manufacturing efficiency of the artificial stone pattern plate by traditional manual mold pouring.

[0062] Reference Figure 4 The device further includes a camera 9 and a display 10. In this embodiment, the camera 9 and the display 10 are mounted on one side of the workbench 1 via a bracket. The lens of the camera 9 faces the mold frame on the workbench 1 and is used to capture the pouring status of the mold frame. The camera 9 and the display 10 are electrically connected to a computer, respectively. The control module 8 is configured as follows:

[0063] Obtain video data fed back by camera 9;

[0064] Video data processing (pre-processing and frame extraction of collected video data) to obtain a real-time image of the pattern within the mold frame and identify the pattern direction characteristics in the image;

[0065] Establish a three-dimensional space coordinate system and mark the pattern direction features in the three-dimensional space coordinate system;

[0066] A three-dimensional model is generated according to the punctuation points and is outputted and displayed on the display 10 .

[0067] Through the above settings, the corresponding three-dimensional coordinate points are defined according to the pattern direction and the pattern pouring depth, and the three-dimensional coordinate point data of the pattern is constructed into a three-dimensional model through modeling software. By presenting the poured pattern in the form of a three-dimensional model, it can be more intuitive for the operator to view, so that the pouring situation and the pouring effect can be grasped in real time. Once a problem occurs, the machine can be stopped for inspection in time.

[0068] In another embodiment of the present application, the control module 8 is further configured to:

[0069] Compare the 3D model with the printed rendering to obtain the actual difference data and record the current abnormal date;

[0070] If the actual difference data exceeds the preset qualified range, the preset difference cause analysis will be performed and a matching prompt will be output based on the analysis results.

[0071] In this embodiment, the three-dimensional coordinate points of the pattern features in the three-dimensional model are compared with the three-dimensional coordinate points of the pattern features in the printed effect image, and the difference is obtained, that is, the actual difference data, so as to obtain the deviation of the casting height and direction of the pattern. If the deviation between the various data exceeds the qualified range, such as 2 cm, it means that the patterned plate generated at this time deviates from the desired effect. In order to make the manufactured patterned plate more consistent, a difference cause analysis is performed to find the cause of such a difference.

[0072] The analysis of the causes of the differences includes:

[0073] 1) Obtain the model of the pattern casting head 41;

[0074] It is understandable that each time the operator installs the pattern casting head 41 , the operator needs to input the model of the casting head into the database for archiving. Therefore, when the actual difference data exceeds the qualified range, the model of the currently used pattern casting head 41 is retrieved.

[0075] 2) Based on the model of the pattern pouring head 41, the corresponding production date and theoretical maintenance cycle are obtained from the designated cloud;

[0076] In this embodiment, the designated cloud can be the manufacturer's website of the pouring head. By obtaining access rights to the manufacturer's website and establishing a connection, the production date and theoretical maintenance cycle of the corresponding pouring head can be found. The maintenance cycle refers to the daily maintenance and inspection of the pouring head.

[0077] 3) Call the abnormal date and obtain the actual usage period based on the abnormal date and the factory date;

[0078] In this embodiment, for example: the abnormal date is January 5, 2024, and the factory date is November 1, 2023, then the actual usage period is 65 days.

[0079] 4) Based on the actual usage cycle, determine whether it exceeds the theoretical maintenance cycle. If so, output a matching maintenance prompt. If not, execute the suspected blockage analysis process;

[0080] In this embodiment, for example, the theoretical maintenance cycle is 50 days. If the actual usage cycle exceeds the theoretical maintenance cycle, it means that the pouring head needs to be maintained and repaired. If the theoretical maintenance cycle is not reached, the suspected blockage analysis process is executed.

[0081] The suspected blocking analysis process includes:

[0082] 1) Obtain the actual slurry discharge amount fed back by the flow meter 11;

[0083] In this embodiment, the actual slurry discharge rate of the pattern casting head 41 is obtained by the flow meter 11 .

[0084] 2) Calculate the difference between the required slurry volume corresponding to the pre-uploaded pattern (the amount of pattern slurry required to complete a complete pattern plate) and the actual spray volume, and obtain the difference;

[0085] 3) If the difference exceeds the preset loss range, it is determined that the pouring head is suspected to be blocked and a matching replacement prompt is output.

[0086] It is understandable that a certain amount of necessary loss will usually occur during the manufacturing process. For example, the newly extruded slurry will be discharged first, and pouring will begin after the slurry flow rate stabilizes. Therefore, the loss range needs to be set by the staff based on experience; the replacement prompt can be displayed through a pop-up window on the display 10, and the display content may be that the pattern pouring head 41 is suspected to be blocked and replacement is recommended.

[0087] In another embodiment of the present application, in order to further confirm whether the actual difference data exceeds the qualified range due to the blockage of the pattern casting head 41, the control module 8 performs a difference cause analysis, which further includes:

[0088] 1) If the pouring head replacement completion signal fed back by the pouring mechanism 4 is received, the current replacement date is recorded and bound to the replaced pouring head model to generate a replacement record;

[0089] In this embodiment, the pouring head replacement completion signal fed back by the pouring mechanism 4 can be that after the operator replaces the suspected blocked pouring head, a new pouring head is replaced. A pressure sensor can be embedded in the installation position of the moving block 3 and the pattern pouring head 41. After the new pouring head is installed, the pressure sensor senses the force and feeds back a signal, which means that the pouring head replacement is completed.

[0090] 2) Determine whether the actual difference data within a preset N consecutive times after the replacement date meets the preset standard conditions; if so, determine that the replaced pouring head is blocked and mark it;

[0091] In this embodiment, the actual difference data after the pouring head is replaced is continuously monitored to see whether it meets the standard conditions. If it does, it indicates that the reason for the actual difference data is due to the blockage of the pouring head.

[0092] For example, the compliance condition may be that if two of the actual difference data obtained within three consecutive times after the replacement date do not exceed the reasonable range, the compliance condition is considered to be met.

[0093] 3) According to the current replacement date and the factory date, the actual replacement cycle of the pouring head of this model is obtained;

[0094] 4) Update the theoretical maintenance cycle based on the actual replacement cycle.

[0095] Through the above settings, in the actual production process, due to the influence of various factors, the actual cycle for replacing the pouring head will be shorter than the theoretical maintenance cycle. Therefore, according to the actual production situation, the theoretical maintenance cycle will be adjusted according to the actual replacement cycle of the pouring head, and the pouring head will be maintained and repaired in time to improve the quality of the patterned plate. It should be noted that the actual replacement cycle can also be a cycle calculated by combining the actual replacement cycles of multiple pouring heads and taking the average value as the actual replacement cycle to update the theoretical maintenance cycle.

[0096] Reference Figure 3 Building on the above, the lifting mechanism 7 includes a positioning plate 71, a threaded rod 72, and a servo motor 73. A lifting slot 74 is longitudinally defined on one side of the movable block 3, facing away from the support frame 2. The threaded rod 72 is rotatably connected to the inner wall of the lifting slot 74 via a bearing. The servo motor 73 is bolted to the inner wall of the lifting slot 74. The output shaft of the servo motor 73 is coaxially fixed to the end of the threaded rod 72. The servo motor 73 is electrically connected to the control module 8. A horizontal lifting block 75 is threadedly connected to the threaded rod 72. The side wall of the lifting block 75 is in contact with the inner wall of the lifting slot 74. One end of the lifting block 75 extends out of the lifting slot 74 and is fixed to the positioning plate 71. The positioning plate 71 is arranged horizontally.

[0097] The pattern pouring head 41 and the base color pouring head 42 are both fixedly mounted on the positioning plate 71. The pattern pouring head 41 is located on the side of the base color pouring head 42 away from the support frame 2. The pouring mechanism 4 also includes two nozzles 43, and the two nozzles 43 are fixedly mounted on the positioning plate 71. The two nozzles 43 are respectively arranged on both sides of the pattern pouring head 41. The nozzles 43 are connected to the preset slurry extruder output end through a pipe. The nozzles 43 are used to spray out slurry that blurs the pattern and base color boundary line of the patterned plate, thereby making the artificial stone patterned plate look more natural.

[0098] In this embodiment, resin solid particles (melting point 60-80°C), ore powder (aluminum hydroxide, calcium carbonate, etc.), solid powder auxiliary materials (anti-shrinkage agent, antioxidant, anti-ultraviolet agent, etc.), and high-temperature curing agent (peroxide series, half-life temperature above 90°C) are mainly used. The above raw materials are stirred and mixed evenly using a mixer, and then put into a high-temperature kneader to melt the resin particles into a fluid. After passing through the kneader, it becomes a plastic powder slurry. After the slurry is heated at high temperature by a high-temperature extruder, and by inputting color pastes of different colors, different extrusion ports extrude slurries of different colors respectively, and enter the pattern pouring head 41, the base color pouring head 42 and the nozzle 43 through the pipe, and all pipes are pasted with insulation materials to keep the slurry inside the pipe warm.

[0099] Reference Figure 1 and Figure 2 The moving mechanism 1 (5) includes a linear motor fixedly mounted on the upper surface of the support frame (2). The linear motor is positioned along the width of the worktable (1). The moving block (3) is bolted to the linear motor's slide. By controlling the linear motor on the support frame (2), the moving block (3) can drive the pouring mechanism (4) to move along the width of the worktable (1). Furthermore, a bellows (21) is provided between the support frame (2) and the moving block (3) to cover the linear motor's slide rails. This prevents slurry from splashing onto the linear motor's slide rails and affecting the sliding of the linear motor's slide rails.

[0100] Movable mechanism 2 (6) also utilizes a linear motor and is located on either side of workbench 1. The linear motor's slide rails run along the length of workbench 1, and support frame 2 is bolted to the linear motor's slide rails at both ends. Similarly, movable mechanism 2 (6) also incorporates the aforementioned bellows 21 to protect the linear motor.

[0101] The embodiments of the present application also disclose a 3D printing method for manufacturing artificial stone patterned plates.

[0102] The 3D printing manufacturing method of artificial stone patterned plate uses any of the above-mentioned 3D printing devices for artificial stone patterned plate to manufacture the artificial stone patterned plate.

[0103] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A 3D printing device for artificial stone patterned plates, characterized in that: include: A workbench (1) on which a mold frame for casting a patterned plate is placed; A support frame (2) is mounted above the workbench (1); A moving block (3) is slidably connected to the support frame (2) and is located above the workbench (1); A pouring mechanism (4) is mounted on the moving block (3) and is used for pouring the pattern of the printed pattern plate and the base color; A moving mechanism (5) for driving the moving block (3) to move along the width direction of the workbench (1); A second moving mechanism (6) for driving the support frame (2) to move along the length direction of the workbench (1); A lifting mechanism (7) for adjusting the vertical movement of the pouring mechanism (4), the lifting mechanism (7) comprising a positioning plate (71), a threaded rod (72), and a servo motor (73); a lifting slot (74) is provided on the side wall of the moving block (3); the threaded rod (72) is rotatably connected to the lifting slot (74); and A control module (8) electrically connected to the first moving mechanism (5), the second moving mechanism (6), the lifting mechanism (7) and the pouring mechanism (4); Wherein, the control module (8) is configured as follows: When receiving a print instruction from the operator, the system searches the preset control parameter database based on the pre-uploaded print effect diagram to determine the matching parameter solution. Controlling the moving mechanism 1 (5), the moving mechanism 2 (6), the lifting mechanism (7) and the pouring mechanism (4) to respond based on the parameter scheme; The control module (8) is configured as follows: Compare the 3D model with the printed rendering to obtain the actual difference data and record the current abnormal date; If the actual difference data exceeds the preset qualified range, the preset difference cause analysis is performed and a matching prompt is output based on the analysis results; The pouring mechanism (4) includes a pattern pouring head (41) and a base color pouring head (42) installed on the moving block (3), the pattern pouring head (41) and the base color pouring head (42) are respectively connected to a preset slurry extruder output end through a pipeline, the pipeline of the pattern pouring head (41) is provided with a flow meter (11), and the flow meter (11) is electrically connected to a control module (8), and the control module (8) performs a difference cause analysis, which includes: Obtain the model of the pattern pouring head (41); Obtaining the corresponding production date and theoretical maintenance period from a designated cloud based on the model of the pattern pouring head (41); Call the abnormal date and obtain the actual usage period based on the abnormal date and the factory date; Based on the actual usage cycle, determine whether it exceeds the theoretical maintenance cycle. If so, output a matching maintenance prompt; if not, execute the suspected blockage analysis process; The suspected obstruction analysis process includes: Obtaining the actual slurry discharge amount fed back by the flow meter (11); Calculate the difference between the required slurry amount corresponding to the pre-uploaded pattern and the actual sprayed amount to obtain the difference; If the difference exceeds the preset loss range, it is determined that the pattern casting head (41) is suspected to be blocked, and a matching replacement prompt is output.

2. The artificial stone pattern plate 3D printing device according to claim 1, characterized in that: It also includes a camera (9) and a display (10), wherein the lens of the camera (9) faces the mold frame on the workbench (1), and the camera (9) and the display (10) are electrically connected to the control module (8), and the control module (8) is further configured as follows: Obtaining video data fed back by the camera (9); The video data is processed to obtain a real-time image of the pattern in the mold frame and identify the pattern direction characteristics in the image; Establish a three-dimensional space coordinate system and mark the pattern direction features in the three-dimensional space coordinate system; A three-dimensional model is generated according to the punctuation points, and the display (10) is made to output the display.

3. The artificial stone pattern plate 3D printing device according to claim 1, characterized in that: The control module (8) performs a difference cause analysis, and further comprises: If a replacement completion signal of the pattern pouring head (41) is received from the pouring mechanism (4), the current replacement date is recorded and bound to the replaced pattern pouring head (41) model to generate a replacement record; Determine whether the actual difference data within a preset N consecutive times after the replacement date meets the preset compliance conditions; If so, it is determined that the replaced pattern casting head (41) is blocked and marked; According to the current replacement date and the factory date, the actual replacement cycle of the pattern pouring head (41) of this model is obtained; Update theoretical maintenance cycles based on actual replacement cycles.

4. The artificial stone pattern plate 3D printing device according to claim 1, characterized in that: The servo motor (73) is fixedly connected to the inner wall of the lifting groove (74), the output shaft of the servo motor (73) is coaxially fixed to the end of the threaded rod (72), the threaded rod (72) is threadedly connected to a lifting block (75), the side wall of the lifting block (75) is fitted to the inner wall of the lifting groove (74), one end of the lifting block (75) extends out of the lifting groove (74) and is fixedly connected to the positioning plate (71), the pattern pouring head (41) and the base color pouring head (42) are both fixedly mounted on the positioning plate (71), and the servo motor (73) is electrically connected to the control module (8).

5. The artificial stone pattern plate 3D printing device according to claim 1, characterized in that: The moving mechanism (5) includes a linear motor fixedly connected to the upper surface of the support frame (2), a slide of the linear motor fixedly connected to the moving block (3), and a bellows (21) for covering the slide rail of the linear motor is provided between the support frame (2) and the moving block (3).

6. The artificial stone pattern plate 3D printing device according to claim 4, characterized in that: The positioning plate (71) is fixedly connected to two nozzles (43) for spraying slurry for blurring the pattern and the background color boundary line of the pattern plate. The two nozzles (43) are respectively arranged on both sides of the pattern pouring head (41). The nozzles (43) are connected to the output end of a preset slurry extruder through a pipeline.

7. A 3D printing method for manufacturing artificial stone patterned plates, characterized by: The artificial stone patterned plate 3D printing device as described in any one of claims 1 to 6 is used to manufacture the artificial stone patterned plate.

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