Three-dimensional glaze plotter and control method thereof

Abstract

The invention discloses a three-dimensional glaze plotter and a control method thereof, and relates to a ceramic product surface decoration technology. The three-dimensional glaze extrusion assembly comprises a needle cylinder for accommodating three-dimensional glaze, a drawing needle head communicated with the needle cylinder, a pressure source for providing extrusion pressure for the needle cylinder, and a control valve for controlling the on-off of the extrusion pressure; the three-dimensional motion platform is mounted on the base assembly and used for bearing and driving the drawing needle head to move in a three-dimensional space; and the control panel is electrically connected with the control valve and the three-dimensional motion platform and used for controlling the moving track of the drawing needle head in the three-dimensional space and controlling the discharging action of the three-dimensional glaze extrusion assembly. The problems that lines are uneven, efficiency is low and complex patterns are difficult to reproduce during manual drawing of the three-dimensional glaze are solved, and automation and precision of drawing of the three-dimensional glaze are achieved.

Description

Technical Field

[0001] This invention relates to the field of ceramic product surface decoration technology, and more specifically, to a three-dimensional glaze plotter and its control method. Background Technology

[0002] Ceramic surface decoration technology is a key link in enhancing the added value of ceramic products. In recent years, three-dimensional glazes, as an emerging decorative material, have brought new possibilities to ceramic art and industrial design because they can form raised, textured lines or patterns on the surface of the ceramic body. For example, Chinese Patent No. CN117023989B discloses a 3D glaze and its preparation method. This method improves the adhesion of 3D glazes to the surface of the ceramic body, and when fired directly or in combination with other glazes, the lines of the three-dimensional glaze will not collapse, crack, bubble, or break, providing a material basis for the realization of three-dimensional decoration.

[0003] However, the creation of three-dimensional glazes currently relies primarily on manual operation. Because the thickness of the lines in three-dimensional glazes is affected by various factors such as extrusion force, painting speed, and the operator's technique, manual drawing makes it difficult to guarantee the uniformity and consistency of the lines, as well as the accurate reproduction of complex patterns. This not only results in low production efficiency but also hinders standardization and mass production. Currently, there is a lack of specialized equipment on the market for automated and precise three-dimensional glaze drawing.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a three-dimensional glaze drawing instrument and its control method, which solves the problems of uneven lines, low efficiency and difficulty in reproducing complex patterns when manually drawing three-dimensional glazes, and realizes the automation and precision of three-dimensional glaze drawing.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a three-dimensional glaze plotter, comprising:

[0007] Base assembly;

[0008] A three-dimensional glaze extrusion assembly includes a syringe for containing three-dimensional glaze, a drawing needle communicating with the syringe, a pressure source for providing extrusion pressure to the syringe, and a control valve for controlling the on / off state of the extrusion pressure.

[0009] A three-dimensional motion platform, mounted on the base assembly, is used to support and drive the drawing needle to move in three-dimensional space;

[0010] The control board is electrically connected to the control valve and the three-dimensional motion platform, respectively, and is used to control the movement trajectory of the drawing needle in three-dimensional space and control the discharge action of the three-dimensional glaze extrusion assembly.

[0011] Preferably, the three-dimensional motion platform includes an X-axis moving component, a Y-axis moving component, and a Z-axis moving component. The X-axis moving component is disposed on the base component, the Y-axis moving component is disposed on the X-axis moving component and is driven by the X-axis moving component to move along the X-axis direction, the Z-axis moving component is disposed on the Y-axis moving component and is driven by the Y-axis moving component to move along the Y-axis direction, and the drawing needle is detachably mounted on the Z-axis moving component.

[0012] Preferably, the X-axis moving assembly includes two X-axis guide rails symmetrically mounted on the base assembly, an X-axis slider that slides with each X-axis guide rail, and an X-axis drive for driving any one of the X-axis sliders to slide along the X-axis direction.

[0013] Preferably, the Y-axis moving assembly includes a moving beam, a Y-axis drive, a Y-axis guide rail, and a Y-axis slider. The two ends of the moving beam are respectively connected to the two X-axis sliders. The Y-axis guide rail is fixed on the moving beam. The Y-axis slider is slidably adapted to the Y-axis guide rail. The Y-axis drive is mounted on the moving beam and is used to drive the Y-axis slider to move along the Y-axis direction.

[0014] Preferably, the Z-axis moving assembly includes a Z-axis mounting plate fixed on the Y-axis slider, an optical axis base and an optical axis top cover fixed on the Z-axis mounting plate, an optical axis fixed between the optical axis base and the optical axis top cover, a needle holder that slides with the optical axis, and a Z-axis driving component for driving the needle holder to slide along the Z-axis direction.

[0015] Preferably, the needle holder has a needle mounting groove extending along the Z-axis. A lateral groove communicating with the needle mounting groove is provided on one side of the needle holder. A nut limiting groove is provided on the side of the needle mounting groove near the lateral groove. A needle clamp that can slide along the Y-axis is provided inside the needle mounting groove. The needle clamp has a cylindrical hole and includes a first bolt and a nut. The diameter of the cylindrical hole is larger than the maximum nominal diameter of the first bolt. The nut is installed in the nut limiting groove. The first bolt passes through the lateral groove and is threadedly connected to the nut. When the first bolt is tightened, the head of the first bolt abuts against the inner bottom surface of the cylindrical hole and pushes the needle clamp, causing the needle clamp to move along the Y-axis to clamp or release the drawing needle.

[0016] Preferably, the three-dimensional glaze extrusion assembly further includes a pressure reducing valve, a feed tube, and an air tube. The syringe includes a pressure chamber. The air tube sequentially connects the output end of the pressure source, the pressure reducing valve, the control valve, and the pressure chamber of the syringe. The discharge end of the syringe and the feed end of the drawing needle are connected through the feed tube.

[0017] Preferably, a bracket is also provided on one side of the base assembly, a syringe holder is fixed on the bracket, a syringe mounting groove is provided on the syringe holder, the syringe is inserted and fixed in the mounting groove, a syringe cap is provided on the syringe holder for sealing the top opening of the syringe, a piston is provided inside the syringe, the piston, the inner wall of the syringe and the syringe cap form the pressure chamber, the syringe cap is provided with a connection port communicating with the pressure chamber, and the air tube is connected to the connection port.

[0018] Preferably, the base assembly includes a frame and multiple columns mounted on the frame, the height of the columns relative to the frame being adjustable to accommodate substrates of different thicknesses to be drawn on.

[0019] Preferably, a control method for a stereoscopic glaze plotter, applied to any of the stereoscopic glaze plotters described in any one of the claims, includes the following steps:

[0020] S1. According to the preset pattern, plan the movement trajectory of the drawing needle, the movement trajectory including at least one drawing line segment that needs to extrude three-dimensional glaze;

[0021] S2. Control the drawing needle to move above the starting point of the current drawing line segment, then control it to descend to the working height, and at the same time control the three-dimensional glaze extrusion assembly to start discharging material;

[0022] S3. Control the drawing needle to move along the trajectory of the current drawing line segment to draw;

[0023] S4. When the drawing needle moves to the end point of the current drawing line segment, control the three-dimensional glaze extrusion assembly to stop discharging material, and control the drawing needle to rise to a safe height;

[0024] S5. Determine if there are any unfinished drawing line segments. If so, control the drawing needle to move to the starting point of the next drawing line segment at a safe height and return to step S2. If not, end the drawing process.

[0025] The moving speed of the drawing needle is matched with the discharge pressure of the three-dimensional glaze extrusion assembly.

[0026] Compared with existing technologies, the advantages of the 3D glaze plotter and its control method disclosed in this invention are as follows: Through the configuration of the base assembly, three-dimensional motion platform, 3D glaze extrusion assembly, and control board, automated execution of glaze plotting is achieved, replacing manual operation that relies on worker feel and experience. The control board can precisely program and control the movement trajectory of the plotting needle in three-dimensional space and synchronously coordinate the start and stop of the 3D glaze extrusion assembly, thereby reproducing complex and intricate digital patterns and ensuring uniform line thickness, effectively improving product consistency and yield. Furthermore, not only can the width of the plotted line segment be changed by replacing plotting needles of different diameters, but the moving speed and extrusion pressure of the plotting needle can also be controlled and matched collaboratively, thereby achieving precise control of the plotted line segment width. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the stereoscopic glaze plotter according to an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of the base assembly and the X-axis moving assembly according to an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the Y-axis moving component and the Z-axis moving component according to an embodiment of this application;

[0031] Figure 4 This is an exploded view of the Z-axis movement component according to an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the structure of a three-dimensional glaze extrusion assembly according to an embodiment of this application;

[0033] Figure 6 This is an exploded view of a three-dimensional glaze extrusion assembly according to an embodiment of this application.

[0034] The numbers or letters in the attached diagram represent the names of the corresponding components:

[0035] 1. Base assembly; 11. Column; 12. X-axis crossbeam; 13. Y-axis crossbeam; 14. First connecting piece connection; 15. Second connecting piece; 2. X-axis moving assembly; 20. X-axis idler wheel mounting plate; 21. X-axis stepper motor; 22. X-axis motor mounting plate; 23. X-axis synchronous pulley; 24. X-axis guide rail; 25. X-axis slider; 26. X-axis synchronous belt buckle; 27. X-axis synchronous belt; 28. X-axis driven idler wheel; 29. ​​X-axis plug screw; 201. X-axis stop block; 3. Y-axis moving assembly; 30. Y-axis driven idler wheel; 31. Moving crossbeam; 32. Y-axis guide rail; 33. Y-axis slider; 35. Y-axis idler wheel mounting plate; 36. Y-axis stepper motor; 37. Y-axis motor mounting plate; 38. Y-axis synchronous pulley; 39. Y-axis Synchronous belt; 301, Y-axis plug screw; 4, Z-axis moving assembly; 40, Z-axis synchronous belt; 41, Z-axis mounting plate; 42, Z-axis stepper motor; 43, optical axis base support; 44, optical axis top cover; 45, needle holder; 451, needle mounting groove; 452, side groove; 46, needle clamp; 47, Z-axis driven idler wheel; 48, Z-axis plug screw; 49, Z-axis synchronous pulley; 401, optical axis; 402, linear bearing; 403, nut; 404, first bolt; 5, three-dimensional glaze extrusion assembly; 50, feed tube; 51, air compressor; 52, pressure reducing valve; 53, control valve; 54, bracket; 55, syringe cap; 56, syringe holder; 57, syringe; 58, air tube; 59, drawing needle; 501, sealing ring; 6, control board. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described through specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 and Figure 5This application provides a 3D glaze plotter, including a base assembly 1, a 3D glaze extrusion assembly 5, a three-dimensional motion platform, and a control board 6. The 3D glaze extrusion assembly 5 includes a syringe 57 for containing 3D glaze, a plotting needle 59 communicating with the syringe 57, a pressure source providing extrusion pressure to the syringe 57, and a control valve 53 for controlling the on / off state of the extrusion pressure. The control valve 53 is a solenoid valve. The three-dimensional motion platform is mounted on the base assembly 1 and is used to carry and drive the plotting needle 59 to move in three-dimensional space along the X, Y, and Z axes. The control board 6 is electrically connected to the control valve 53 and the three-dimensional motion platform, respectively, and is used to control the movement trajectory of the plotting needle 59 in three-dimensional space and control the material discharge action of the 3D glaze extrusion assembly 5. The control board 6 can be implemented using a microcontroller, a programmable logic controller, a motion control card, or an embedded system, etc. This invention does not limit its specific hardware selection and architecture.

[0038] In an optional embodiment, to improve the 3D glaze cutoff effect during the empty stroke, the 3D glaze extrusion assembly 5 further includes a back suction solenoid valve disposed between the syringe 57 and the drawing needle 59. The back suction solenoid valve is configured to generate a back suction action when the control valve 53 cuts off the extrusion pressure, so as to draw back the 3D glaze at the front end of the drawing needle 59.

[0039] When using the aforementioned 3D glaze plotter, the user first edits or imports a preset pattern in the computer software connected to the control board 6, and sets process parameters such as needle speed and extrusion pressure. The computer software converts the pattern data into control commands and sends them to the control board 6. The control board 6 parses the control commands and generates two synchronous signals: one signal drives the three-dimensional motion platform, controlling the plotting needle 59 to complete the XY plane trajectory movement and the Z-axis lifting and lowering of the plotting needle 59; the other signal controls the control valve 53 of the 3D glaze extrusion assembly 5, opening the discharge when the plotting needle 59 is drawing a pattern and stopping the discharge during the idle stroke.

[0040] In the above method, the automated execution of glaze drawing is achieved through the setup of the base assembly 1, the three-dimensional motion platform, the three-dimensional glaze extrusion assembly 5, and the control board 6. This replaces manual operation that relies on worker feel and experience. The control board 6 can precisely program and control the movement trajectory of the drawing needle 59 in three-dimensional space and synchronously coordinate the start and stop of the three-dimensional glaze extrusion assembly 5. This allows for the reproduction of complex and intricate digital patterns and ensures uniform line thickness, effectively improving product consistency and yield. Furthermore, not only can the width of the drawing line segment be changed by replacing the drawing needle 59 with different diameters, but the moving speed and extrusion pressure of the drawing needle 59 can also be controlled and matched collaboratively to achieve precise control of the drawing line segment width.

[0041] In this embodiment, the three-dimensional motion platform includes an X-axis moving component 2, a Y-axis moving component 3, and a Z-axis moving component 4. The X-axis moving component 2 is mounted on the base component 1. The Y-axis moving component 3 is mounted on the X-axis moving component 2 and is driven by the X-axis moving component 2 to move along the X-axis direction. The Z-axis moving component 4 is mounted on the Y-axis moving component 3 and is driven by the Y-axis moving component 3 to move along the Y-axis direction. The drawing needle 59 is detachably mounted on the Z-axis moving component 4.

[0042] Please see Figure 3 In this embodiment, the X-axis moving assembly 2 includes two X-axis guide rails 24 symmetrically mounted on the base assembly 1, an X-axis slider 25 slidably engaged with each X-axis guide rail 24, and an X-axis drive unit for driving any one of the X-axis sliders 25 to slide along the X-axis direction. The X-axis drive unit includes an X-axis motor mounting plate 22 fixed on the base assembly 1, an X-axis idler wheel mounting plate 20, an X-axis stepper motor 21 fixed on the X-axis motor mounting plate 22, an X-axis synchronous wheel 23 fixed on the output end of the X-axis stepper motor 21, an X-axis driven idler wheel 28 rotatably connected to the X-axis idler wheel mounting plate 20 by an X-axis locking screw 29, and an X-axis synchronous belt 27 drivingly connected between the X-axis synchronous wheel 23 and the X-axis driven idler wheel 28. The X-axis slider 25 is fixedly connected to one side of the X-axis synchronous belt 27 by an X-axis synchronous belt buckle 26. To ensure operational safety and limit the range of motion, X-axis stops 201 are fixed at both ends of the X-axis guide rail 24 on the other side to mechanically limit the travel of the X-axis slider 25. Furthermore, an X-axis power-off limit switch can be installed on each X-axis stop 201. When the X-axis slider 25 touches the X-axis stop 201, the X-axis power-off limit switch is triggered, achieving electrical limit and safety power-off.

[0043] Please see Figure 3 In this embodiment, the Y-axis moving assembly 3 includes a moving beam 31, a Y-axis drive, a Y-axis guide rail 32, and a Y-axis slider 33. The two ends of the moving beam 31 are respectively connected to two X-axis sliders 25. The Y-axis guide rail 32 is fixed on the moving beam 31, and the Y-axis slider 33 is slidably adapted to the Y-axis guide rail 32. The Y-axis drive is mounted on the moving beam 31 and is used to drive the Y-axis slider 33 to move along the Y-axis direction. The Y-axis drive includes a Y-axis idler wheel mounting plate 35, a Y-axis motor mounting plate 37, a Y-axis stepper motor 36, a Y-axis synchronous wheel 38, a Y-axis driven idler wheel 30, which is rotatably connected to the Y-axis idler wheel mounting plate 35 via a Y-axis screw 301, and a Y-axis synchronous belt 39 that drives the Y-axis driven idler wheel 30 and the Y-axis synchronous wheel 38. Y-axis power-off limit switches are respectively installed on the Y-axis idler wheel mounting plate 35 and the Y-axis motor mounting plate 37.

[0044] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the Z-axis moving assembly 4 includes a Z-axis mounting plate 41 fixed on the Y-axis slider 33, an optical axis base 43 and an optical axis top cover 44 fixed on the Z-axis mounting plate 41, an optical axis 401 fixed between the optical axis base 43 and the optical axis top cover 44, a needle holder 45 slidably engaged with the optical axis 401, a linear bearing 402 disposed between the optical axis 401 and the needle holder 45, and a Z-axis driving component for driving the needle holder 45 to slide along the Z-axis direction. The Z-axis driving component includes a Z-axis stepper motor 42 fixed on the Z-axis mounting plate 41, a Z-axis synchronous pulley 49 fixed on the output end of the Z-axis stepper motor 42, a Z-axis driven idler pulley 47 rotatably connected to the Z-axis mounting plate 41 via a Z-axis locking screw 48, and a Z-axis synchronous belt 40 drivingly connected between the Z-axis driven idler pulley 47 and the Z-axis synchronous pulley 49. The needle holder 45 is provided with a slot for locking and fixing one side of the Z-axis synchronous belt 40, and a movable space for the other side of the Z-axis synchronous belt 40 to move, so as to prevent motion interference. One side of the Z-axis mounting plate 41 is fixedly connected to one side of the Y-axis synchronous belt 39. The optical axis base 43 can limit the downward position of the needle holder 45. Since the Z-axis synchronous wheel 49 is located below the optical axis top cover 44, an extension block (not shown) extends downward from the optical axis top cover 44. The extension block extends to the lower front end of the Z-axis synchronous wheel 49 to limit the upward position of the needle holder 45. The optical axis base 43 and the extension block are respectively provided with Z-axis power-off limit switches.

[0045] In this embodiment, a needle mounting groove 451 is provided through the needle holder 45 along the Z-axis direction. A lateral groove 452 communicating with the needle mounting groove 451 is provided on one side of the needle holder 45. A nut limiting groove (not shown) is provided on the side of the needle mounting groove 451 near the lateral groove 452. A needle clamp 46 that can slide along the Y-axis direction is provided in the needle mounting groove 451. The needle clamp 46 is provided with a cylindrical hole and also includes a first bolt 404 and a nut 403. The diameter of the cylindrical hole is larger than the maximum nominal diameter of the first bolt 404. Nut 403 is installed in the nut limiting groove. Nut 403 is a hexagonal nut. The width of the nut limiting groove is slightly larger than the width of the needle mounting groove 451, and the shape of its two side walls is adapted to the two opposing planes on the hexagonal nut. The thickness of the nut limiting groove matches the axial height of nut 403, so that after nut 403 is embedded, the nut limiting groove can effectively constrain the axial and circumferential degrees of freedom of nut 403, preventing it from rotating or shifting during tightening. The first bolt 404 passes through the lateral groove 452 and is threadedly connected to nut 403. When the first bolt 404 is tightened, the head of the first bolt 404 abuts against the inner bottom surface of the cylindrical hole and pushes the needle clamp 46, causing the needle clamp 46 to move along the Y-axis direction to clamp or release the drawing needle 59, which can accommodate different specifications of drawing needle 59.

[0046] In this embodiment, the three-dimensional glaze extrusion assembly 5 further includes a pressure reducing valve 52, a feed tube 50, and an air tube 58. The syringe 57 includes a pressure chamber. The air tube 58 sequentially connects the output end of the pressure source, the pressure reducing valve 52, the control valve 53, and the pressure chamber of the syringe 57. The discharge end of the syringe 57 and the feed end of the drawing needle 59 are connected through the feed tube 50. The pressure source is specifically an air compressor 51 or a pressure cylinder. Specifically, a bracket 54 is also provided on one side of the base assembly 1. A syringe holder 56 is fixed on the bracket 54. A syringe 57 mounting groove is provided on the syringe holder 56. The syringe 57 is inserted and fixed in the mounting groove. A syringe cap 55 is provided on the syringe holder 56 to seal the top opening of the syringe 57. The syringe cap 55 is connected and fixed to the syringe holder 56 by a second bolt. A piston is provided inside the syringe 57, and a pressure chamber is formed between the piston, the inner wall of the syringe 57, and the syringe cap 55. The syringe cap 55 is provided with a connection port that communicates with the pressure chamber, and the air tube 58 is connected to the connection port. To ensure sealing, the syringe cap 55 includes an insertion part that can be inserted into the syringe 57, and a sealing ring 501 is provided on the outer peripheral wall of the insertion part.

[0047] In the above configuration, the compressed air generated by the air compressor 51 is stabilized and regulated by the pressure reducing valve 52, and then controlled by the control valve 53. When open, the compressed air enters the pressure chamber of the syringe 57 through the air pipe 58, pushing the piston inside the syringe 57 to move, thereby generating extrusion pressure on the three-dimensional glaze inside the syringe 57. The extruded three-dimensional glaze flows out from the discharge end of the syringe 57, is transported to the drawing needle 59 through the material pipe 50, and is finally extruded from the tip of the needle and deposited on the surface of the substrate. Furthermore, a pressure relief valve can be installed on the air pipe 58 located between the pressure reducing valve 52 and the syringe 57. When the air compressor 51 is running continuously and the control valve 53 is in the closed state, the pressure relief valve can automatically open to relieve pressure when the air pressure in the air pipe 58 exceeds the set safety value.

[0048] Please see Figure 2In this embodiment, the base assembly 1 includes a frame and multiple columns 11 mounted on the frame. The frame includes two X-axis beams 12 and two Y-axis beams 13. The X-axis beams 12, Y-axis beams 13, and columns 11 are all made of profile components. The X-axis beams 12 and Y-axis beams 13 are connected by a first connector 14, and the columns 11 and the frame are connected by a second connector 15. Both the first connector and the second connector 15 can be angle plates specifically for profiles, along with matching nuts and bolts. By adjusting the installation position of the angle plates on the columns 11, the height of the columns 11 relative to the frame can be adjusted, thereby flexibly adapting to substrates of different thicknesses to be drawn. It should be noted that the three-dimensional glaze plotter of the present invention is also suitable for drawing curved ceramic blanks (such as the side of a cylinder, a sphere, etc.) with a certain height difference. In practice, it is necessary to obtain accurate three-dimensional topography or height data of the surface to be drawn of the blank in advance, and the local undulations of the curved surface in the drawing area should not be too large. During the drawing process, the height of the drawing probe 59 is adjusted in real time via the Z-axis drive to maintain a constant working distance from the surface of the blank during movement, thus enabling the drawing of three-dimensional glaze on curved surfaces. This application mode has high requirements for blank positioning and trajectory planning, and is not typically used as the plotter of this invention.

[0049] This invention also discloses a control method for a three-dimensional glaze plotter, applicable to any of the three-dimensional glaze plotters described in any one of the claims, comprising the following steps:

[0050] S1. According to the preset pattern, plan the movement trajectory of the drawing needle 59. The movement trajectory includes at least one drawing line segment that needs to extrude three-dimensional glaze.

[0051] S2. Control the drawing needle 59 to move above the starting point of the current drawing line segment, and then control it to descend to the working height, while controlling the three-dimensional glaze extrusion component 5 to start discharging material.

[0052] S3. Control the drawing needle 59 to move along the trajectory of the current drawing line segment to draw;

[0053] S4. When the drawing needle 59 moves to the end point of the current drawing line segment, control the three-dimensional glaze extrusion assembly 5 to stop discharging material, and control the drawing needle 59 to rise to a safe height.

[0054] S5. Determine if there are any unfinished drawing line segments. If so, control the drawing needle 59 to move to the starting point of the next drawing line segment at a safe height and return to step S2. If not, end the drawing process.

[0055] The drawing needle 59 moves at a speed that matches the discharge pressure of the three-dimensional glaze extrusion assembly 5. This can compensate for fluctuations in the extrusion volume caused by changes in the moving speed, thereby obtaining continuous, uniform, uninterrupted, or unstacking three-dimensional lines during the drawing process.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-dimensional glaze plotter, characterized in that, include: Base assembly; A three-dimensional glaze extrusion assembly includes a syringe for containing three-dimensional glaze, a drawing needle communicating with the syringe, a pressure source for providing extrusion pressure to the syringe, and a control valve for controlling the on / off state of the extrusion pressure. A three-dimensional motion platform, mounted on the base assembly, is used to support and drive the drawing needle to move in three-dimensional space; The control board is electrically connected to the control valve and the three-dimensional motion platform, respectively, and is used to control the movement trajectory of the drawing needle in three-dimensional space and control the discharge action of the three-dimensional glaze extrusion assembly.

2. The three-dimensional glaze plotter according to claim 1, characterized in that: The three-dimensional motion platform includes an X-axis moving component, a Y-axis moving component, and a Z-axis moving component. The X-axis moving component is mounted on the base component. The Y-axis moving component is mounted on the X-axis moving component and is driven by the X-axis moving component to move along the X-axis direction. The Z-axis moving component is mounted on the Y-axis moving component and is driven by the Y-axis moving component to move along the Y-axis direction. The drawing needle is detachably mounted on the Z-axis moving component.

3. The three-dimensional glaze plotter according to claim 2, characterized in that: The X-axis moving assembly includes two X-axis guide rails symmetrically mounted on the base assembly, an X-axis slider that slides with each X-axis guide rail, and an X-axis drive unit for driving any one of the X-axis sliders to slide along the X-axis direction.

4. The three-dimensional glaze plotter according to claim 3, characterized in that: The Y-axis moving assembly includes a moving beam, a Y-axis drive, a Y-axis guide rail, and a Y-axis slider. The two ends of the moving beam are respectively connected to the two X-axis sliders. The Y-axis guide rail is fixed on the moving beam. The Y-axis slider is slidably adapted to the Y-axis guide rail. The Y-axis drive is mounted on the moving beam and is used to drive the Y-axis slider to move along the Y-axis direction.

5. The three-dimensional glaze plotter according to claim 4, characterized in that: The Z-axis moving assembly includes a Z-axis mounting plate fixed on the Y-axis slider, an optical axis base and an optical axis top cover fixed on the Z-axis mounting plate, an optical axis fixed between the optical axis base and the optical axis top cover, a needle holder that slides with the optical axis, and a Z-axis drive for driving the needle holder to slide along the Z-axis direction.

6. The three-dimensional glaze plotter according to claim 5, characterized in that: A needle mounting groove is provided through the needle holder along the Z-axis. A lateral groove communicating with the needle mounting groove is provided on one side of the needle holder. A nut limiting groove is provided on the side of the needle mounting groove near the lateral groove. A needle clamp that can slide along the Y-axis is provided in the needle mounting groove. The needle clamp is provided with a cylindrical hole, and also includes a first bolt and a nut. The diameter of the cylindrical hole is larger than the maximum nominal diameter of the first bolt. The nut is installed in the nut limiting groove. The first bolt passes through the lateral groove and is threadedly connected to the nut. When the first bolt is tightened, the head of the first bolt abuts against the inner bottom surface of the cylindrical hole and pushes the needle clamp, causing the needle clamp to move along the Y-axis to clamp or loosen the drawing needle.

7. The three-dimensional glaze plotter according to claim 1, characterized in that: The three-dimensional glaze extrusion assembly also includes a pressure reducing valve, a feed tube, and an air tube. The syringe includes a pressure chamber. The air tube sequentially connects the output end of the pressure source, the pressure reducing valve, the control valve, and the pressure chamber of the syringe. The discharge end of the syringe and the feed end of the drawing needle are connected through the feed tube.

8. The three-dimensional glaze plotter according to claim 7, characterized in that: A bracket is also provided on one side of the base assembly, and a syringe holder is fixed on the bracket. The syringe holder is provided with a syringe mounting groove, and the syringe is inserted and fixed in the mounting groove. The syringe holder is provided with a syringe cap for sealing the top opening of the syringe. A piston is provided inside the syringe, and the piston, the inner wall of the syringe, and the syringe cap form a pressure chamber. The syringe cap is provided with a connection port communicating with the pressure chamber, and the air tube is connected to the connection port.

9. The three-dimensional glaze plotter according to claim 1, characterized in that: The base assembly includes a frame and multiple columns mounted on the frame. The height of the columns relative to the frame is adjustable to accommodate substrates of different thicknesses to be drawn on.

10. A control method for a stereoscopic glaze plotter, applied to the stereoscopic glaze plotter as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. According to the preset pattern, plan the movement trajectory of the drawing needle, the movement trajectory including at least one drawing line segment that needs to extrude three-dimensional glaze; S2. Control the drawing needle to move above the starting point of the current drawing line segment, then control it to descend to the working height, and at the same time control the three-dimensional glaze extrusion assembly to start discharging material; S3. Control the drawing needle to move along the trajectory of the current drawing line segment to draw; S4. When the drawing needle moves to the end point of the current drawing line segment, control the three-dimensional glaze extrusion assembly to stop discharging material, and control the drawing needle to rise to a safe height; S5. Determine if there are any unfinished drawing line segments. If so, control the drawing needle to move to the starting point of the next drawing line segment at a safe height and return to step S2. If not, end the drawing process. The moving speed of the drawing needle is matched with the discharge pressure of the three-dimensional glaze extrusion assembly.

Images