Ceramic digital glaze spraying device

Abstract

The application discloses a kind of ceramic digital spray glaze devices, belong to ceramic printing technical field, digital printing glaze module and glaze supply module are communicated;Digital printing glaze module includes long strip glaze pipe, quick coupling pipe assembly and spray glaze nozzle assembly, and the printing glaze mouth of long strip glaze pipe is communicated with each spray glaze nozzle assembly one by one by quick coupling pipe assembly and forms multiple spray glaze paths;Spray glaze nozzle assembly includes valve nozzle unit and valve nozzle, and the input end of valve nozzle unit is connected with quick coupling pipe assembly, and the output end of valve nozzle unit is connected with valve nozzle;Glaze supply module includes glaze bucket, glaze supply pump, glaze box assembly, air compressor and pressure regulating valve;Glaze bucket, glaze supply pump, first glaze box and the glaze inlet of long strip glaze pipe are sequentially connected and form glaze supply path;Air compressor, pressure regulating valve and the positive pressure air inlet hole of first glaze box are sequentially communicated.The application solves the problem that ceramic spray glaze device is difficult to ensure the thickness of glaze layer, and realizes the diversification of ceramic spray glaze, and the on-demand glazing requirement of spray glazing.

Description

Technical Field

[0001] This invention relates to the field of ceramic printing technology, and in particular to a ceramic digital glazing device. Background Technology

[0002] Ceramic glazing typically employs two glazing methods: pouring and spraying. However, existing ceramic glazing equipment relies on manual control of the glaze application amount for both methods. This manual control is inaccurate, leading to uneven glazing results. Insufficient glaze results in a thin, ineffective glaze layer, while excessive glaze leads to an overly thick layer, increasing costs. Furthermore, the difficulty in ensuring consistent glaze thickness can cause the ceramic body to crack, resulting in poor quality printed products. Additionally, existing ceramic glazing equipment is limited to full-area glazing of ceramic tiles, failing to meet the diverse, on-demand glazing requirements of 3D ceramic glazing. Summary of the Invention

[0003] To address the aforementioned shortcomings, the present invention aims to provide a ceramic digital glazing device that solves the problems of existing ceramic glazing devices being unable to guarantee the thickness of the glaze layer and failing to meet the on-demand glazing requirements for diversified 3D ceramic glazing.

[0004] To achieve this objective, the present invention adopts the following technical solution: a ceramic digital glazing device, comprising a digital glaze printing module and a glaze supply module, wherein the digital glaze printing module and the glaze supply module are connected;

[0005] The digital printing glaze module includes a long glaze tube, a quick-connect assembly, and a glaze spray nozzle assembly. The long glaze tube has a glaze inlet and a glaze printing outlet. The glaze spray nozzle assembly has multiple nozzles. The glaze inlet is connected to the glaze printing outlet through the glaze chamber inside the long glaze tube. The glaze printing outlet of the long glaze tube is connected to each of the glaze spray nozzle assemblies through the quick-connect assembly to form multiple independent glaze spraying paths.

[0006] The glaze spray head assembly includes a valve spray head unit and a valve nozzle. The input end of the valve spray head unit is connected to the quick-connect pipe assembly, and the output end of the valve spray head unit is connected to the valve nozzle. The valve spray head unit is used to control the on / off of the glaze spray path corresponding to the glaze spray head assembly.

[0007] The glaze supply module includes a glaze tank, a glaze supply pump, a glaze box assembly, an air compressor, and a pressure regulating valve. The glaze box assembly includes a first glaze box.

[0008] The glaze bucket is connected to the glaze inlet of the first glaze box via the glaze supply pump, and the glaze outlet of the first glaze box is connected to the glaze chamber inside the long glaze tube via the glaze inlet. The glaze bucket, the glaze supply pump, the first glaze box, and the glaze inlet of the long glaze tube are connected in sequence to form a glaze supply passage.

[0009] The air compressor, the pressure regulating valve, and the positive pressure air inlet of the first glaze box are connected in sequence.

[0010] It is worth noting that the elongated glaze tube is also provided with a glaze outlet, which is connected to the glaze inlet through the glaze chamber inside the elongated glaze tube; the glaze supply module also includes a circulation pump, and the glaze box assembly also includes a second glaze box;

[0011] The outlet of the elongated glaze tube is connected to the glaze inlet of the second glaze box, the outlet of the second glaze box is connected to the inlet of the circulation pump, and the outlet of the circulation pump is connected to the glaze inlet of the first glaze box.

[0012] The glaze outlet of the long glaze tube, the second glaze box, the circulating pump, and the glaze inlet of the first glaze box are connected in sequence to form a large circulating glaze path.

[0013] Optionally, the glaze supply module further includes a filter, the inlet of which is connected to the output port of the glaze supply pump and the output port of the circulation pump, and the output port of the filter is connected to the glaze inlet of the first glaze box.

[0014] Specifically, the glaze supply module also includes a buffer tank, and the air compressor, the buffer tank, the pressure regulating valve and the positive pressure air inlet of the first glaze box are connected in sequence to form an air passage.

[0015] Preferably, the glaze supply module is positioned above the digital printing glaze module;

[0016] The glaze inlet and the glaze outlet are respectively located at both ends of the elongated glaze tube;

[0017] The printing glaze nozzle is located on the lower surface of the elongated glaze tube, and the glaze spray nozzle assembly is located below the elongated glaze tube.

[0018] It is worth noting that the quick-connect assembly includes multiple upper quick-connects, multiple lower quick-connects, and multiple connecting pipes. The upper quick-connects and the lower quick-connects correspond one-to-one, and the upper quick-connects and the corresponding lower quick-connects are connected through the corresponding connecting pipes.

[0019] The elongated glaze tube has multiple glaze printing nozzles, each of which corresponds to one of the upper quick-connect tubes, and the upper quick-connect tubes are connected to the corresponding glaze printing nozzles.

[0020] Each valve nozzle unit corresponds to a lower quick-connect pipe, and the lower quick-connect pipe is connected to the corresponding valve nozzle unit.

[0021] Optionally, the digital printing glaze module further includes a printhead mounting assembly, a first mounting bracket, and a second mounting bracket. The printhead mounting assembly includes a mounting plate. The first mounting bracket and the second mounting bracket are both arranged perpendicular to the mounting plate. The lower end of the first mounting bracket is connected to the left end of the upper surface of the mounting plate, the lower end of the second mounting bracket is connected to the right end of the upper surface of the mounting plate, the left end of the elongated glaze tube is connected to the upper end of the first mounting bracket, and the right end of the elongated glaze tube is connected to the upper end of the first mounting bracket.

[0022] The mounting plate, the first mounting bracket, the second mounting bracket, and the elongated glaze tube form an inner mounting cavity, and the glaze spray nozzle assembly is disposed within the inner mounting cavity.

[0023] Specifically, the nozzle mounting assembly further includes a mounting base and an adjusting mounting part. The glazing nozzle assembly passes through the upper surface of the mounting base to its lower surface, and the glazing nozzle assembly is fixed to the mounting base. The mounting base is fixed to the mounting plate by the adjusting mounting part.

[0024] Preferably, the glazing nozzle assembly further includes a protruding ring, which is fixed to the outer wall of the valve nozzle unit. After the glazing nozzle assembly passes through the mounting base, the protruding ring is located on the upper surface of the mounting base.

[0025] The nozzle mounting assembly also includes a clamping block, which has a nozzle through hole. The radius of the nozzle through hole is larger than the radius of the valve nozzle unit, and the radius of the nozzle through hole is smaller than the outer diameter of the protruding ring.

[0026] The clamping block passes through the nozzle through the outer wall of the valve nozzle unit, and the clamping block presses the protruding ring against the upper surface of the mounting base by a screw.

[0027] It is worth noting that the nozzle mounting assembly also includes a positioning ring, the outer diameter of which is larger than the radius of the nozzle through hole;

[0028] The positioning ring is sleeved on the outer wall of the valve nozzle unit, and the positioning ring is pressed against the upper surface of the pressing block.

[0029] One of the above technical solutions has the following beneficial effects: In the ceramic digital glazing device, ceramic glaze is supplied to the digital printing glaze module through the glaze supply channel. Then, the air pressure is adjusted by the air compressor and the pressure regulating valve to control the amount of glaze sprayed per unit time. In addition, the opening and closing of the valve nozzle unit is controlled to control the on / off of the glaze spraying path, thereby controlling the size of the glaze droplets. This allows for precise control of the glaze layer thickness in ceramic printing, avoiding situations where the glaze layer is too thin or too thick, thus improving the quality of the printed product. It also enables digital on-demand printing, thereby meeting the diverse glazing needs of 3D ceramic glazing. Attached Figure Description

[0030] Figure 1 This is a partial structural schematic diagram of a ceramic digital glazing device according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the glaze path of a ceramic digital glazing device according to an embodiment of the present invention;

[0032] Figure 3 This is a partial structural schematic diagram of a digital printing glaze module according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the nozzle mounting assembly and its structure according to an embodiment of the present invention;

[0034] Figure 5 yes Figure 4 An enlarged diagram of circle A;

[0035] Figure 6 This is a schematic diagram of the structure of a glazing nozzle assembly according to an embodiment of the present invention;

[0036] The components include: 1. Digital printing glaze module; 11. Long glaze tube; 111. Glaze inlet; 112. Printing glaze outlet; 113. Glaze outlet; 12. Quick-connect pipe assembly; 121. Upper quick-connect pipe; 122. Lower quick-connect pipe; 13. Glaze spray nozzle assembly; 131. Valve nozzle unit; 132. Valve nozzle; 133. Protruding ring; 14. Nozzle mounting assembly; 141. Mounting plate; 142. Mounting base; 143. Adjusting mounting part; 144. Clamping block; 145. Positioning ring; 15. First mounting bracket; 16. Second mounting bracket; 2. Glaze supply module; 21. Glaze tank; 22. Glaze supply pump; 23. Glaze box assembly; 231. First glaze box; 232. Second glaze box; 24. Air compressor; 25. Pressure regulating valve; 26. Circulation pump; 27. Buffer tank; 28. Filter. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0039] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The following is combined Figures 1 to 6This invention describes a ceramic digital glazing device, comprising a digital glaze printing module 1 and a glaze supply module 2, which are connected. The digital glaze printing module 1 includes a long glaze tube 11, a quick-connect assembly 12, and a glaze spray nozzle assembly 13. The long glaze tube 11 has a glaze inlet 111 and a glaze printing outlet 112. The glaze spray nozzle assembly 13 has multiple nozzles, which can be spliced ​​and widened according to the printing width. The glaze inlet 111 is connected to the glaze printing outlet 112 through the glaze chamber inside the long glaze tube 11. The glaze printing outlet 112 of the long glaze tube 11 is connected to each of the glaze spray nozzle assemblies 13 through the quick-connect assembly 12, forming multiple independent glaze spray paths. The glaze spray nozzle assembly 13 includes a valve nozzle unit 131 and a valve nozzle 132. The input end of the valve nozzle unit 131 is connected to the quick-connect assembly 12. The connecting pipe assembly 12 is connected, and the output end of the valve nozzle unit 131 is connected to the valve nozzle 132. The valve nozzle unit 131 is used to control the on / off of the spray glaze path corresponding to the spray glaze nozzle assembly 15. The glaze supply module 2 includes a glaze tank 21, a glaze supply pump 22, a glaze box assembly 23, an air compressor 24, and a pressure regulating valve 25. The glaze box assembly 23 includes a first glaze box 231. The glaze tank 21 is connected to the glaze inlet of the first glaze box 231 through the glaze supply pump 22. The glaze outlet of the first glaze box 231 is connected to the glaze cavity in the long glaze tube 11 through the glaze inlet 111. The glaze tank 21, the glaze supply pump 22, the first glaze box 231, and the glaze inlet 111 of the long glaze tube 11 are connected in sequence to form a glaze supply path. The air compressor 24, the pressure regulating valve 25, and the positive pressure air inlet of the first glaze box 231 are connected in sequence.

[0042] In the aforementioned ceramic digital glazing device, ceramic glaze is supplied to the digital printing glaze module 1 via a glaze supply channel. The air pressure is then adjusted by the air compressor 24 and the pressure regulating valve 25 to control the amount of glaze sprayed per unit time. Furthermore, the opening and closing of the valve nozzle unit 131 controls the flow of the glaze spraying path, thereby controlling the size of the glaze droplets and precisely controlling the thickness of the glaze layer during ceramic printing. This prevents the glaze layer from being too thin or too thick, improving the quality of the printed product and enabling digital on-demand printing, thus meeting the diverse glazing needs of 3D ceramic glazing. Figure 2As shown, when glazing printing is required, the glaze in the glaze tank 21 is pumped by the glaze supply pump 22 to the glaze inlet of the first glaze box 231, and then enters the first glaze box 231 through the glaze inlet. Simultaneously, the air compressor 24 operates. Since the pressure regulating valve 25 is connected to the positive pressure air inlet of the first glaze box 231, the pressure of the compressed air blown into the first glaze box 231 can be controlled by adjusting the pressure regulating valve 25. After the compressed air is blown into the first glaze box 231, the compressed air can drive the glaze from the glaze inlet 111 into the glaze chamber inside the elongated glaze tube 11, and increase the kinetic energy of the glaze. After the glaze enters the glaze chamber within the elongated glaze tube 11, the valve nozzle unit 131 is opened, allowing the glaze to flow from the printing glaze nozzle 112 to the quick-connect assembly 12, then through the quick-connect assembly 12 to the valve nozzle unit 131, and finally through the valve nozzle 132 to be sprayed onto a designated location on the ceramic surface. When glazing is not required at that location, the valve nozzle unit 131 is closed, preventing the glaze from flowing to the valve nozzle 132, thus stopping the glaze spraying.

[0043] Specifically, the glaze tank 21 has a built-in stirring mechanism and a level gauge, which can effectively prevent glaze sedimentation and monitor the glaze level in real time. The elongated glaze tube 11 is equivalent to a glaze storage tank and buffer tank 27. The first glaze box 231 serves as the front end of the elongated glaze tube 11, and its function is to store and provide a stable supply of glaze, as well as provide a stable positive pressure. The valve nozzle unit 131 is a high-speed two-way solenoid valve. Through the software system, the switching voltage of each valve can be independently and precisely controlled, which can control the fluid passing through the valve. The glaze after passing through the valve is then sprayed out through the valve nozzle 132 with a smaller inner diameter under high pressure, thus forming a glaze dot on the ceramic. Through precise control of each glaze droplet, on-demand printing can be achieved, and the glaze utilization rate is almost 100%. The digital printing glaze module 1 and the glaze supply module 2 can be fixedly connected, or they can be separated to form a new device and then connected to the original machine. Once the ceramic is conveyed to the designated position via the conveyor belt, the printing signal is automatically triggered, and the digital printing glaze module 1 can print on the ceramic as needed, with no excess waste, achieving refined production and a glaze utilization rate of almost 100%.

[0044] In some embodiments, such as Figure 2As shown, the elongated glaze tube 11 is also provided with a glaze outlet 113, which is connected to the glaze inlet 111 through the glaze chamber inside the elongated glaze tube 11; the glaze supply module 2 also includes a circulation pump 26, and the glaze box assembly 23 also includes a second glaze box 232; the glaze outlet 113 of the elongated glaze tube 11 is connected to the glaze inlet of the second glaze box 232, the glaze outlet of the second glaze box 232 is connected to the inlet of the circulation pump 26, and the outlet of the circulation pump 26 is connected to the glaze inlet of the first glaze box 231; the glaze outlet 113 of the elongated glaze tube 11, the second glaze box 232, the circulation pump 26, and the glaze inlet of the first glaze box 231 are connected in sequence to form a large circulating glaze path. When the valve nozzle unit 131 is opened and the glaze is sprayed from the valve nozzle 132, due to the small opening of the valve nozzle 132, most of the glaze will remain in the glaze cavity inside the long glaze tube 11. At this time, through the large circulation glaze path, the glaze flows from the glaze outlet 113 into the second glaze box 232, and then from the output port of the second glaze box 232 to the circulation pump 26. The circulation pump 26 pumps the glaze back into the first glaze box 231 to form a circulation. During this process, the glaze that re-enters the first glaze box 231 carries positive pressure and combines with the newly added glaze, thereby ensuring that the glaze has enough energy to flow from the glaze output port of the first glaze box 231 to the long glaze tube 11, then to the glaze spray nozzle assembly 13, and finally sprayed out from the valve nozzle 132. By controlling the positive pressure of the glaze returning to the first glaze box 231 in the large circulation glaze path, and by combining the opening and closing frequency of the valve nozzle unit 131, as well as selecting a suitable through diameter of the valve nozzle unit 1311 and the inner diameter of the valve nozzle 132, the size of the glaze droplets printed on the ceramic surface can be controlled, thereby controlling the thickness of the glaze layer.

[0045] Furthermore, under the positive pressure of the first glaze box 231, some glaze will flow back to the second glaze box 232, creating a large circulation glaze path. This path, formed by the first glaze box 231, the elongated glaze tube 11, and the second glaze box 232, allows the glaze to circulate effectively. The circulation pump 26 connects the second glaze box 232 and the first glaze box 231. Based on the pressure of the circulation pump 26, the glaze from the second glaze box 232 is transported back to the first glaze box 231 through the pipeline, ensuring glaze circulation and preventing sedimentation. Preferably, the valve nozzle unit 131 has a diameter of 0.4mm-0.6mm, the valve nozzle 132 has an inner diameter of 0.2mm-0.5mm, the valve nozzle unit 131 has an opening and closing frequency of less than or equal to 2000Hz, the positive pressure range of the glaze returning to the first glaze box 231 is 0.01MPa-0.6MPa, the glaze particles are less than 5μm, and the viscosity of the glaze (25℃) is <80Pa·s. When the valve nozzle unit 131 is operating at a high frequency, the valve nozzle 132 ejects independent glaze droplets; when the valve nozzle unit 131 is normally open, the valve nozzle 132 ejects a continuous straight line. In one embodiment, the glaze spraying nozzle assembly 13 is a monochrome nozzle with a longitudinal printing resolution ≤60DPI, a frequency of 1kHz, a maximum printing speed of 24m / min, and a transverse printing resolution of 60DPI. In another embodiment, the glazing nozzle assembly 13 is a two-color nozzle with a vertical printing resolution of ≤30 DPI, a frequency of 1 kHz, a maximum printing speed of 24 m / min, and a horizontal printing resolution of 60 DPI.

[0046] It is worth noting that the glaze supply module 2 also includes a filter 28. The inlet of the filter 28 is connected to the output port of the glaze supply pump 22 and the output port of the circulation pump 26, respectively. The output port of the filter 28 is connected to the glaze inlet of the first glaze box 231. The filter 28 is used to filter impurities in the glaze, thereby preventing pipe blockage due to impurities. By passing the glaze from both the glaze supply path and the large circulation glaze path into the same filter 28, the number of filters 28 used can be reduced, thereby lowering costs.

[0047] Optionally, the glaze supply module 2 further includes a buffer tank 27. The air compressor 24, the buffer tank 27, the pressure regulating valve 25, and the positive pressure air inlet of the first glaze box 231 are sequentially connected to form an air path. The buffer tank 27 buffers the compressed air coming from the air compressor 24, preventing the compressed air from directly blowing onto the pressure regulating valve 25 and damaging it. Specifically, the air path also includes a pressure detection element for detecting the air pressure of the compressed air.

[0048] Specifically, such as Figure 1As shown, the glaze supply module 2 is positioned above the digital printing glaze module 1. Thus, due to gravity, the glaze more easily flows from the glaze outlet of the first glaze box 231 through the glaze inlet 111 of the long glaze tube 11 into the glaze chamber within the tube. The glaze inlet 111 and the glaze outlet 113 are respectively located at both ends of the long glaze tube 11. This allows the glaze to pass through the long glaze tube 11 from beginning to end during the large circulation glaze path, ensuring that the path of the large circulation glaze path covers all the printing glaze inlets 112, facilitating the entry of the glaze from the printing glaze inlets 112 into the quick-connect assembly 12. The printing glaze inlets 112 are located on the lower surface of the long glaze tube 11, and the glaze spray nozzle assembly 13 is positioned below the long glaze tube 11. Thus, due to gravity, the glaze more easily flows from the printing glaze inlets 112 into the quick-connect assembly 12. Preferably, the glaze inlet 111 and the glaze outlet 113 are respectively located at the left and right ends of the upper surface of the elongated glaze tube 11. Combined with the printing glaze nozzle 112 located on the lower surface of the elongated glaze tube 11, the energy of the glaze is further enhanced by gravity, making it easier for the glaze to be ejected from the valve nozzle 132.

[0049] Preferred, such as Figure 3 As shown, the quick-connect assembly 12 includes multiple upper quick-connect pipes 121, multiple lower quick-connect pipes 122, and multiple connecting pipes. Each upper quick-connect pipe 121 and each lower quick-connect pipe 122 corresponds to one of the upper quick-connect pipes 121 and is connected to the corresponding lower quick-connect pipe 122 via the corresponding connecting pipe. The elongated glaze tube 11 has multiple glaze printing nozzles 112, each corresponding to one of the upper quick-connect pipes 121, and each upper quick-connect pipe 121 is connected to its corresponding glaze printing nozzle 112. Each valve nozzle unit 131 corresponds to one of the lower quick-connect pipes 122, and each lower quick-connect pipe 122 is connected to its corresponding valve nozzle unit 131. By configuring the upper quick-connect pipes 121, lower quick-connect pipes 122, and connecting pipes, the ease of installation can be improved. During installation, one end of the upper quick-connect pipe 121 is attached to the printing glaze nozzle 112, and one end of the lower quick-connect pipe 122 is attached to the valve nozzle unit 131. Then, the other ends of the upper quick-connect pipe 121 and the lower quick-connect pipe 122 are connected via corresponding connecting pipes. By setting the printing glaze nozzle 112 and its corresponding valve nozzle unit 131 and valve nozzle 132, different patterns can be formed by controlling the opening and closing of different valve nozzle units 131 during glazing. Preferably, the connecting pipe is a flexible hose, which makes installation easier when connecting the other ends of the upper quick-connect pipe 121 and the lower quick-connect pipe 122.

[0050] In some embodiments, such as Figure 3As shown, the digital printing glaze module 1 further includes a nozzle mounting assembly 14, a first mounting bracket 15, and a second mounting bracket 16. The nozzle mounting assembly 14 includes a mounting plate 141. The first mounting bracket 15 and the second mounting bracket 16 are both arranged perpendicular to the mounting plate 141. The lower end of the first mounting bracket 15 is connected to the left end of the upper surface of the mounting plate 141, and the lower end of the second mounting bracket 16 is connected to the right end of the upper surface of the mounting plate 141. The left end of the elongated glaze tube 11 is connected to the upper end of the first mounting bracket 15, and the right end of the elongated glaze tube 11 is connected to the upper end of the first mounting bracket 15. The mounting plate 141, the first mounting bracket 15, the second mounting bracket 16, and the elongated glaze tube 11 form an installation cavity, and the glaze spray nozzle assembly 13 is disposed within the installation cavity. In this way, the elongated glaze tube 11 can be mounted above the glaze spray nozzle assembly 13, so that the printing glaze nozzle 112 of the elongated glaze tube 11 is located above the valve nozzle unit 131. Due to gravity, this facilitates the flow of glaze into the valve nozzle unit 131. Furthermore, since the elongated glaze tube 11 is connected to the upper ends of the first mounting bracket 15 and the second mounting bracket 16 respectively, forming the top of the mounting cavity, there is no need to set up a separate top, thus saving materials and reducing costs. Since the glaze spray nozzle assembly 13 is located inside the mounting cavity, the mounting plate 141, the first mounting bracket 15, the second mounting bracket 16, and the elongated glaze tube 11 also serve to protect the glaze spray nozzle assembly 13.

[0051] It is worth noting that, such as Figure 3 As shown, the printhead mounting assembly 14 further includes a mounting base 142 and an adjusting mounting part 143. The glazing printhead assembly 13 passes through the upper surface of the mounting base 142 towards its lower surface, and the glazing printhead assembly 13 is fixed to the mounting base 142. The mounting base 142 is fixed to the mounting plate 141 via the adjusting mounting part 143. Thus, when ceramic is conveyed to the area below the ceramic digital glazing device, the valve nozzle 132 can be aligned with the ceramic. After releasing the adjusting mounting part 143, the position of the mounting base 142 on the mounting plate 141 can be finely adjusted, thereby finely adjusting the position of the printhead mounting assembly 14. By adjusting the mounting part 143, the position of the mounting base 142 perpendicular to the printing direction is adjusted so that the spacing between each set of valve printhead units 131 meets the assembly requirements.

[0052] Optionally, such as Figure 4 and 5As shown, the glazing nozzle assembly 13 further includes a protruding ring 133, which is fixed to the outer wall of the valve nozzle unit 131. After the glazing nozzle assembly 13 passes through the mounting base 142, the protruding ring 133 is located on the upper surface of the mounting base 142. The nozzle mounting assembly 14 further includes a clamping block 144, which has a nozzle through hole. The radius of the nozzle through hole is larger than the radius of the valve nozzle unit 131, and the radius of the nozzle through hole is smaller than the outer diameter of the protruding ring 133. The clamping block 144 passes through the nozzle through hole to the outer wall of the valve nozzle unit 131, and the clamping block 144 uses a screw to press the protruding ring 133 against the upper surface of the mounting base 142. Thus, the lower surface of the clamping block 144 is in close contact with the protruding ring 133, thereby pressing the protruding ring 133 against the upper surface of the mounting base 142. Since the protruding ring 133 is fixed to the outer wall of the valve nozzle unit 131, the clamping block 144 can press the valve nozzle unit 131 against the upper surface of the mounting base 142 through the protruding ring 133, preventing the valve nozzle unit 131 from moving upward relative to the mounting base 142 and detaching from the mounting base 142. Preferably, the clamping block 144 is provided with multiple nozzle through holes, each corresponding to a valve nozzle unit 131, thereby pressing all valve nozzle units 131 in the same row against the same horizontal plane.

[0053] Specifically, such as Figure 5 As shown, the nozzle mounting assembly 14 further includes a positioning ring 145, the outer diameter of which is larger than the radius of the nozzle through hole. The positioning ring 145 is sleeved on the outer wall of the valve nozzle unit 131 and presses against the upper surface of the clamping block 144. The positioning ring 145 presses the valve nozzle unit 131 against the upper surface of the clamping block 144, thereby preventing the valve nozzle unit 131 from moving downward relative to the mounting base 142 and disengaging from the mounting base 142.

[0054] Other components and operations of the ceramic digital glazing device according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0055] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A ceramic digital glazing device, comprising a digital glaze printing module and a glaze supply module, wherein the digital glaze printing module and the glaze supply module are connected, characterized in that: The digital printing glaze module includes a long glaze tube, a quick-connect assembly, and a glaze spray nozzle assembly. The long glaze tube has a glaze inlet and a glaze printing outlet. The glaze spray nozzle assembly has multiple nozzles. The glaze inlet is connected to the glaze printing outlet through the glaze chamber inside the long glaze tube. The glaze printing outlet of the long glaze tube is connected to each of the glaze spray nozzle assemblies through the quick-connect assembly to form multiple independent glaze spraying paths. The glaze spray head assembly includes a valve spray head unit and a valve nozzle. The input end of the valve spray head unit is connected to the quick-connect pipe assembly, and the output end of the valve spray head unit is connected to the valve nozzle. The valve spray head unit is used to control the on / off of the glaze spray path corresponding to the glaze spray head assembly. The glaze supply module includes a glaze tank, a glaze supply pump, a glaze box assembly, an air compressor, and a pressure regulating valve. The glaze box assembly includes a first glaze box. The glaze bucket is connected to the glaze inlet of the first glaze box via the glaze supply pump, and the glaze outlet of the first glaze box is connected to the glaze chamber inside the long glaze tube via the glaze inlet. The glaze bucket, the glaze supply pump, the first glaze box, and the glaze inlet of the long glaze tube are connected in sequence to form a glaze supply passage. The air compressor, the pressure regulating valve, and the positive pressure air inlet of the first glaze box are connected in sequence; The elongated glaze tube is also provided with a glaze outlet, which is connected to the glaze inlet through a glaze chamber inside the elongated glaze tube; the glaze supply module also includes a circulation pump, and the glaze box assembly also includes a second glaze box. The outlet of the elongated glaze tube is connected to the glaze inlet of the second glaze box, the outlet of the second glaze box is connected to the inlet of the circulation pump, and the outlet of the circulation pump is connected to the glaze inlet of the first glaze box. The glaze outlet of the long glaze tube, the second glaze box, the circulating pump, and the glaze inlet of the first glaze box are connected in sequence to form a large circulating glaze path.

2. The ceramic digital glazing device according to claim 1, characterized in that: The glaze supply module also includes a filter, the inlet of which is connected to the outlet of the glaze supply pump and the outlet of the circulation pump, respectively, and the outlet of the filter is connected to the glaze inlet of the first glaze box.

3. The ceramic digital glazing device according to claim 2, characterized in that: The glaze supply module also includes a buffer tank. The air compressor, the buffer tank, the pressure regulating valve, and the positive pressure air inlet of the first glaze box are connected in sequence to form an air passage.

4. The ceramic digital glazing device according to claim 1, characterized in that: The glaze supply module is positioned above the digital printing glaze module; The glaze inlet and the glaze outlet are respectively located at both ends of the elongated glaze tube; The printing glaze nozzle is located on the lower surface of the elongated glaze tube, and the glaze spray nozzle assembly is located below the elongated glaze tube.

5. A ceramic digital glazing device according to claim 1, characterized in that: The quick-connect assembly includes multiple upper quick-connects, multiple lower quick-connects, and multiple connecting pipes. The upper quick-connects and the lower quick-connects correspond one-to-one, and the upper quick-connects and their corresponding lower quick-connects are connected through the corresponding connecting pipes. The elongated glaze tube has multiple glaze printing nozzles, each of which corresponds to one of the upper quick-connect tubes, and the upper quick-connect tubes are connected to the corresponding glaze printing nozzles. Each valve nozzle unit corresponds to a lower quick-connect pipe, and the lower quick-connect pipe is connected to the corresponding valve nozzle unit.

6. A ceramic digital glazing device according to claim 1, characterized in that: The digital printing glaze module also includes a printhead mounting assembly, a first mounting bracket, and a second mounting bracket. The printhead mounting assembly includes a mounting plate. The first mounting bracket and the second mounting bracket are both arranged perpendicular to the mounting plate. The lower end of the first mounting bracket is connected to the left end of the upper surface of the mounting plate, and the lower end of the second mounting bracket is connected to the right end of the upper surface of the mounting plate. The left end of the elongated glaze tube is connected to the upper end of the first mounting bracket, and the right end of the elongated glaze tube is connected to the upper end of the first mounting bracket. The mounting plate, the first mounting bracket, the second mounting bracket, and the elongated glaze tube form an inner mounting cavity, and the glaze spray nozzle assembly is disposed within the inner mounting cavity.

7. A ceramic digital glazing device according to claim 6, characterized in that: The nozzle mounting assembly further includes a mounting base and an adjusting mounting part. The glazing nozzle assembly passes through the upper surface of the mounting base to its lower surface, and the glazing nozzle assembly is fixed to the mounting base. The mounting base is fixed to the mounting plate by the adjusting mounting part.

8. A ceramic digital glazing device according to claim 7, characterized in that: The glazing nozzle assembly also includes a protruding ring, which is fixed to the outer wall of the valve nozzle unit. After the glazing nozzle assembly passes through the mounting base, the protruding ring is located on the upper surface of the mounting base. The nozzle mounting assembly also includes a clamping block, which has a nozzle through hole. The radius of the nozzle through hole is larger than the radius of the valve nozzle unit, and the radius of the nozzle through hole is smaller than the outer diameter of the protruding ring. The clamping block passes through the nozzle through the outer wall of the valve nozzle unit, and the clamping block presses the protruding ring against the upper surface of the mounting base by a screw.

9. A ceramic digital glazing device according to claim 8, characterized in that: The nozzle mounting assembly also includes a positioning ring, the outer diameter of which is larger than the radius of the nozzle through hole; The positioning ring is sleeved on the outer wall of the valve nozzle unit, and the positioning ring is pressed against the upper surface of the pressing block.

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