Uniform glazing device for craft ceramics

Abstract

The invention relates to the technical field of ceramic glazing, and particularly provides a craft ceramic uniform glazing device which comprises a moving part, a scanning part, a glaze spraying part, an air supply assembly, a glaze supply assembly and a control part, and the control part controls the movement of the execution end of the moving part, the air flow of the air supply assembly and the glaze flow of the glaze supply assembly. The scanning part is used for scanning the shape of a workpiece; the glaze spraying part comprises an array type spray head and an array type control valve, the array type spray head is provided with a plurality of atomizing nozzles distributed in an array mode, and the array type control valve is provided with a plurality of valve holes correspondingly connected with the atomizing nozzles; the control part is used for controlling the corresponding atomizing nozzles to spray atomized glaze through the array type control valve so as to be matched with the shape of a workpiece part opposite to the nozzles; the ceramic body glazing device can be used for accurately glazing ceramic bodies with different sizes and different shapes, and waste caused by excessive spraying of glaze is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of ceramic glazing technology, and more particularly to a device for uniformly glazing process ceramics. Background Technology

[0002] In the production of art ceramics, glazing is a key process that affects the appearance quality, surface properties and subsequent firing effect of the product. Its uniformity and glaze utilization rate are directly related to the pass rate and production cost of ceramic products.

[0003] Currently, mechanical spray glazing has become the mainstream glazing method due to its high degree of automation and fast glazing efficiency. Existing mechanical spray glazing devices typically include a glaze spraying mechanism, a body-supporting mechanism, and a transmission mechanism. The glaze is atomized by a nozzle and sprayed onto the surface of a rotating or moving ceramic body. However, due to the lack of effective glaze restraint and recovery structures, a large amount of glaze that does not adhere to the body surface during the atomization and diffusion process is directly splashed and dispersed into the external environment (such as outside the equipment, on the ground, or in the air), resulting in poor energy efficiency. Although some simple shielding structures (such as baffles outside the nozzle) and recovery tanks exist in existing technologies, these recovery tanks are mostly located below the body and can only recover a small amount of dripping glaze. They cannot effectively recover glaze that has dispersed or splashed to the sides and above, and the problem of glaze waste remains unresolved.

[0004] To address the aforementioned issues, this application proposes a device for uniformly applying glaze to process ceramics. Summary of the Invention

[0005] The purpose of this invention is to provide a device for uniformly applying glaze to ceramics, so as to solve the problem of glaze waste in current ceramic glazing devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A uniform glazing device for ceramics includes a moving part, an air supply component, a glaze supply component, and a control part. The control part controls the movement of the actuator of the moving part, the airflow rate of the air supply component, and the glaze flow rate of the glaze supply component. The glazing device further includes:

[0008] The scanning unit is used to scan the shape of the workpiece;

[0009] The glazing section includes an array of nozzles and an array of control valves. The array of nozzles is provided with multiple arrayed atomizing nozzles, and the array of control valves is provided with multiple valve holes corresponding to the atomizing nozzles. The control section controls the corresponding atomizing nozzles to spray atomized glaze material through the array of control valves to adapt to the shape of the workpiece part facing the nozzle.

[0010] Furthermore, the atomizing nozzles are arranged in rows and columns, with the outermost nozzles only able to spray gas, while the innermost nozzles can spray both gas and glaze.

[0011] Furthermore, the atomizing nozzle includes:

[0012] The housing assembly has an array of spray holes inside, and a glaze chamber is also provided inside the housing assembly. The spray holes and the glaze chamber are isolated, and the housing assembly also has isolation holes inside the glaze chamber.

[0013] Multiple glaze tubes are slidably connected to the inside of the housing assembly along their own axial direction. Each glaze tube corresponds to a spray nozzle capable of spraying glaze and is coaxially arranged. Each glaze tube is provided with an outlet section and an inlet section in the spray nozzle and the glaze chamber, respectively. The inlet section is provided with an inlet. One end of the inlet section is located in the isolation hole. When the glaze tube slides to a preset position, the inlet is located in the isolation hole.

[0014] The telescopic component is used to move the glaze tube along its axis.

[0015] Furthermore, the nozzles in the same column are connected by a connecting air chamber.

[0016] Furthermore, the nozzle is a tapered orifice with a gradually decreasing opening.

[0017] Furthermore, the array-type control valve includes:

[0018] The valve housing is a tubular structure closed at both ends. Multiple control ports are distributed along its axial direction. An air inlet is also provided on the outer side of the valve housing.

[0019] The valve core is a tubular structure closed at both ends. The valve core is rotatably connected to the inside of the valve housing, and the two are coaxially arranged. The valve core has multiple air control ports distributed on it. When the valve core rotates to a preset position, the air control ports are connected to the corresponding control ports. The air control ports are distributed in multiple rows in the circumferential direction. Each row has a different number of air control ports and corresponds to different control ports. When the valve core rotates, different control ports exhaust air.

[0020] A drive motor is fixedly connected to the outside of the valve housing, and the drive motor is used to drive the valve core to rotate around its axis by a preset angle.

[0021] Furthermore, the valve core is provided with a connecting groove at the position corresponding to the main air inlet. The connecting groove is an annular groove, and an inner tube air inlet is provided on the connecting groove. The inner tube air inlet penetrates the inner and outer sides of the valve core.

[0022] Furthermore, the telescopic member includes:

[0023] A piston rod, one end of which is fixedly connected to the end of the feed section opposite to the discharge section, and the piston rod is slidably connected to the isolation hole;

[0024] Piston, the piston being fixedly connected to the end of the piston rod away from the glaze tube;

[0025] The pressure tube is a cylindrical tube with an opening at one end. The piston is slidably connected to the inside of the pressure tube. The pressure tube has a control air port on the side of the piston near the housing assembly and an exhaust port at a mirror position of the control air port.

[0026] Furthermore, the valve core is also provided with a glaze control port, and some of the control ports are connected to the control air ports through pipelines. The glaze control ports and the control air ports are correspondingly arranged, and the distribution pattern of the glaze control ports on the valve core corresponds to the distribution pattern of the air port control ports.

[0027] Furthermore, the end of the pressure tube opposite to the housing assembly is provided with a mounting hole.

[0028] In summary, the present invention has the following advantages compared with the prior art:

[0029] The ceramic uniform glazing device disclosed in this invention uses an array of nozzles and a scanning unit. During spraying, the shape of the workpiece is first acquired, and then the number of nozzles used is precisely controlled to achieve precise glazing of ceramic blanks of different sizes and shapes. This effectively avoids waste caused by excessive glaze spraying and improves the energy efficiency of the spraying equipment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the array-type nozzle in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0031] Figure 2 This is an exploded view of the array-type nozzles in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0032] Figure 3 This is a front view of the array-type nozzles in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0033] Figure 4 for Figure 3 Sectional view of AA.

[0034] Figure 5 for Figure 4 A magnified view of a section at point I.

[0035] Figure 6 This is a schematic diagram of the front housing structure in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0036] Figure 7 This is a first-view structural schematic diagram of the shell in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0037] Figure 8 This is a schematic diagram of the shell structure from a second perspective of the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0038] Figure 9 This is a first-view structural schematic diagram of the rear housing in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0039] Figure 10 This is a schematic diagram of the structure of the uniform glazing device for ceramics disclosed in an embodiment of the present invention from a rear second perspective.

[0040] Figure 11 This is a schematic diagram of the isolation sleeve in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0041] Figure 12 This is a schematic diagram of the glaze tube in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0042] Figure 13 This is a schematic diagram of the pressure tube in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0043] Figure 14 This is a schematic diagram of the array-type control valve in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0044] Figure 15 This is a front view of the array-type control valve in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0045] Figure 16 for Figure 15 A cross-sectional view of BB.

[0046] Figure 17 This is a schematic diagram of the valve core in the uniform glazing device for ceramics disclosed in an embodiment of the present invention.

[0047] Figure 18 This is a schematic diagram of the valve hole opening in one mode of the valve core in the uniform glazing device for process ceramics disclosed in an embodiment of the present invention.

[0048] Figure label:

[0049] 100. Housing assembly; 101. Sealing plate; 102. Sealing ring; 110. Front housing; 111. Spray nozzle; 112. Connecting air chamber; 113. Sealing platform; 114. Air inlet; 120. Middle housing; 121. Through hole; 122. Inner retaining ring; 123. First sealing groove; 124. Air chamber sealing platform; 125. Pressing platform; 130. Rear housing; 131. Glaze chamber; 132. Isolation hole; 133. Center platform; 134. Second sealing groove; 135. Connecting platform; 136. Glaze inlet; 200. Glaze pipe; 201. Discharge section; 202. Feed section; 203. Feed inlet; 210. Isolation sleeve; 211. Limiting groove; 300. Telescopic component; 310. Piston rod; 320. Piston; 330. Pressure pipe; 331. Control air port; 400. Mounting shaft; 500. Valve housing; 510. Valve pipe; 511. Main air inlet; 512. Control port; 520. Outer plug; 600. Valve core; 610. Valve inner pipe; 620. Inner plug; 611. Connecting groove; 612. Inner pipe air inlet; 613. Air port control port; 614. Glaze control port; 615. Sealing ring groove; 700. Drive motor; 800. Sealing isolation ring. Detailed Implementation

[0050] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0051] Example 1

[0052] like Figure 1 As shown, an embodiment of the present invention provides a uniform glazing device for process ceramics. The glazing device includes a moving part, an air supply component, a glaze supply component, a scanning part, a glazing spraying part, and a control part. The control part controls the movement of the actuator of the moving part, the air flow rate of the air supply component, and the glaze flow rate of the glaze supply component. The scanning part is used to scan the shape of the workpiece. The scanning part moves relative to the ceramic body. During the relative movement between the two, the scanning part scans the shape of the ceramic body. The glazing spraying part includes an array of nozzles and an array of control valves. The array of nozzles is provided with a plurality of arrayed atomizing nozzles. The array of control valves is provided with a plurality of valve holes corresponding to the atomizing nozzles. The control part controls the corresponding atomizing nozzles to spray atomized glaze through the array of control valves to adapt to the shape of the workpiece part facing the nozzle.

[0053] In this embodiment, when glazing the ceramic body, the relative movement between the scanning unit and the ceramic body is controlled by the motion unit (such as the rotation of the ceramic body or the rotation of the scanning unit around the ceramic body), so that the scanning unit acquires the shape of the ceramic body. The scanning unit sends the scanning data to the control unit. The control unit obtains the correspondence between each atomizing nozzle in the array nozzle and the surface of the ceramic body based on the motion parameters of the motion unit and the relative positions of the scanning unit and the array nozzle. Combined with the three-dimensional morphology data obtained by scanning, the control unit dynamically adjusts the opening and closing state of the array control valve to precisely control the start and stop of each atomizing nozzle, so that the atomized glaze is evenly covered on the surface of the body, thereby achieving precise glazing of complex curved surfaces and reducing glaze waste.

[0054] The ceramic uniform glazing device disclosed in this embodiment of the invention uses an array of nozzles and a scanning unit. During spraying, the shape of the workpiece is first acquired, and then the number of nozzles used is precisely controlled to achieve precise glazing of ceramic blanks of different sizes and shapes. This effectively avoids waste caused by excessive glaze spraying and improves the energy efficiency of the spraying equipment.

[0055] Specifically, in this embodiment, the motion unit, air supply component, glaze supply component, and scanning component are all existing technologies. For example, in this embodiment, the motion includes a robotic arm and a rotating platform. The rotating platform is a rotary worktable in the prior art, which is driven to rotate by a servo motor to realize the rotation of the ceramic body. The robotic arm is used to drive the array nozzles to move along a preset trajectory, and cooperates with the rotating platform to achieve multi-angle glazing. The coordinated movement of the robotic arm and the rotating platform ensures that the glazing path is fully covered without omission. At the same time, the movement of the robotic arm and the servo motor is precisely synchronized by the control unit, so that the control unit can calculate the real-time position and attitude of the array nozzles in three-dimensional space according to the motion parameters of the robotic arm and the control parameters of the servo motor. Then, combined with the three-dimensional morphology data of the ceramic body obtained by the scanning unit, the relative positional relationship between each atomizing nozzle and the workpiece surface is matched in real time. The air supply component adopts a constant pressure air source system to ensure stable spray pressure at the atomizing nozzles and improve the uniformity of glaze atomization. The glaze supply component delivers glaze through a metering pump to ensure precise and controllable glaze supply and avoid uneven glaze thickness caused by flow fluctuations. At the same time, the power of the metering pump is adjusted according to the number of atomizing nozzles that are open, so that the glaze supply and the atomizing nozzles are matched.

[0056] The scanning process uses a laser 3D scanner, depth camera, or structured light scanner to acquire 3D point cloud data of the ceramic body surface in real time. After filtering, registration, and reconstruction algorithms, an accurate geometric model is generated. Alternatively, a planar camera is used in conjunction with image recognition technology to extract the projected shape of the ceramic body, thereby identifying the contour of the area of ​​the ceramic body that the array nozzle is facing. Based on this, the control unit dynamically activates the atomizing nozzle that matches the contour and closes the nozzle located outside the contour to prevent glaze from being sprayed onto non-glazed areas.

[0057] The control unit is a computer platform that integrates a motion control card and a vision processing module. It obtains the geometric features of the ceramic body through image recognition technology or three-dimensional contour reconstruction technology, and generates nozzle control commands based on pre-set glazing parameters to achieve on-demand glazing.

[0058] In this embodiment, as Figures 1 to 5 As shown, the array nozzle includes a housing assembly 100, a glaze tube 200, and a telescopic member 300. The glaze tube 200 is located inside the housing assembly 100, and the telescopic member 300 is located outside the housing assembly 100 and fixed to the glaze tube 200. The telescopic member 300 is used to drive the glaze tube 200 to move along its axis.

[0059] The housing assembly 100 includes a front housing 110, a middle housing 120, and a rear housing 130. The middle housing 120 is clamped between the front housing 110 and the rear housing 130 and is axially positioned by fastening bolts. Figure 2 and Figure 6 As shown, the front housing 110 is provided with nozzles 111 penetrating the front housing 110. The nozzles 111 are arranged in an array (in this embodiment, the nozzles 111 are arranged in three rows and nine columns). The nozzles 111 are tapered holes with gradually decreasing openings and smooth inner walls to reduce airflow resistance. The small end opening of the nozzles 111 is located on the side of the front housing 110 away from the middle housing 120, and the large end opening is located on the side facing the middle housing 120. This is used to guide the airflow to converge and enhance the atomization effect. The airflow is accelerated in the tapered hole and forms a negative pressure zone, thereby drawing in the glaze supplied by the glaze assembly and fully atomizing it. The front housing 110, which is in contact with the middle housing 120, is also provided with a communicating air cavity 112. The communicating air cavity 112 is a waist-shaped groove. The communicating air cavity 112 connects to the nozzles 111 in the same row, so that the nozzles 111 in the same row share a common air hole structure. The side wall of the front housing 110 is provided with an air inlet 114 that communicates with the communicating air cavity 112. The air inlet 114 is an airflow inlet and is connected to an array-type control valve through a pipeline. The end of the communicating air cavity 112 is also provided with a sealing recess 113. The sealing recess 113 is located on the side of the front housing 110 that is in contact with the middle housing 120. The sealing recess 113 is a square groove, and a sealing sheet 101 is provided inside it. The sealing sheet 101 is a square rubber sheet, and a through hole structure adapted to the communicating air cavity 112 is formed on the sealing sheet 101. When the front housing 110 and the middle housing 120 are fixed together, the front housing 110 and the middle housing 120 clamp the sealing sheet 101, causing it to undergo elastic deformation to fill the gap and achieve an airtight seal.

[0060] Preferably, the outer edge of the small end of the nozzle 111 protrudes from the end face of the front housing 110 and smoothly transitions to the end face of the front housing 110 to form a guide lip structure, thereby reducing airflow separation.

[0061] like Figure 5 , Figure 7 and Figure 8 As shown, the middle shell 120 is a square block shape, and multiple through holes 121 are provided on the middle shell 120. The through holes 121 correspond one-to-one with the spray holes 111 located on the inner side and are arranged coaxially. That is, in this embodiment, the through holes 121 are arranged in a row of seven columns. The outermost spray hole 111 does not correspond to the through hole 121, so that the outermost spray hole 111 only supplies gas. The through hole 121 is a through hole structure, penetrating the upper and lower surfaces of the middle shell 120. The glaze tube 200 is slidably connected to the through hole 121 and slidably connected to the inner wall of the through hole 121. The outer side of the glaze tube 200 and the through hole 121 form a sealing fit to isolate the glaze and gas.

[0062] Preferably, the middle housing 120 has a pressing countersunk 125 that matches the sealing countersunk 113 on the side that fits against the front housing 110. The pressing countersunk 125 is engaged with the sealing countersunk 113, making the positioning between the front housing 110 and the middle housing 120 more precise. At the same time, the pressing countersunk 125, the sealing countersunk 113, and the sealing plate 101 form a groove-shaped seal to prevent gas leakage from the gap between adjacent components. The pressing countersunk 125 is also provided with a gas cavity sealing platform 124 that matches the communicating gas cavity 112. The gas cavity sealing platform 124 is an oblong boss. The end of the gas cavity sealing platform 124 passes through the through hole structure of the sealing plate 101 and is located inside the communicating gas cavity 112. The sealing plate 101 and the communicating gas cavity 112 cooperate to isolate adjacent communicating gas cavities 112.

[0063] The middle housing 120 is provided with an annular first sealing groove 123 on the side opposite to the front housing 110. A sealing ring 102 is provided in the first sealing groove 123. When the rear housing 130 and the middle housing 120 are fixed, the sealing ring 102 is pressed between the first sealing groove 123 and the rear housing 130 to form an elastic seal and prevent glaze from leaking from the outside.

[0064] like Figure 9 and Figure 10As shown, the rear housing 130 is a square block. The rear housing 130 is provided with isolation holes 132 that correspond one-to-one with the through holes 121 and are coaxially arranged. The isolation holes 132 are through holes. One end of the glaze tube 200 slides in the isolation hole 132. The output end of the telescopic member 300 passes through the isolation hole 132 and is connected to the glaze tube 200 to realize transmission linkage. A glaze cavity 131 is provided on the side of the rear housing 130 connected to the middle housing 120. The glaze cavity 131 is an annular groove, and a central platform 133 is provided on the inner side of the glaze cavity 131. The height of the central platform 133 is less than the depth of the glaze cavity 131. A second sealing groove 134 is provided at the edge of the glaze cavity 131. One end of the sealing ring 102 is located in the second sealing groove 134. A glaze inlet 136 is also provided on the outer side of the rear housing 130, which communicates with the glaze cavity 131. The glaze inlet 136 is connected to a glaze supply assembly for feeding glaze into the glaze cavity 131.

[0065] like Figure 12 As shown, the glaze tube 200 includes a tubular discharge section 201 and a cylindrical feed section 202. The outer diameter of the feed section 202 is larger than the outer diameter of the discharge section 201. The discharge section 201 and the feed section 202 are an integral structure, which is processed by expanding the tube. The feeding section 202 is provided with a feeding port 203 on its side. The inner wall of the feeding section 202 is slidably engaged with the inner wall of the through hole 121. During the process of the telescopic member 300 controlling the glaze tube 200 to slide along its axis, the feeding port 203 is located inside the isolation hole 132 or inside the isolation hole 132. When the feeding port 203 is located inside the glaze cavity 131, that is, between the end face of the isolation hole 132 and the middle shell 120, the glaze located inside the glaze cavity 131 flows into the glaze tube 200 through the feeding port 203 and flows into the end of the spray hole 111 along the discharge section 201. After being atomized by the airflow inside the spray hole 111, it is sprayed out to achieve uniform glaze spraying. When the feed inlet 203 enters the isolation hole 132, the isolation hole 132 blocks the feed inlet 203, preventing the glaze from entering the glaze tube 200. As a result, the spray hole 111 will not spray out glaze. Thus, by controlling the extension and retraction of the glaze tube 200, the start and stop of glaze spraying can be achieved, precisely matching the workpiece surface treatment rhythm, realizing precise glaze supply, reducing glaze waste, and improving energy-saving performance.

[0066] The end of the discharge section 201 away from the feed section 202 is a tapered end, and there is a gas flow gap between the tapered end and the inner wall of the nozzle 111.

[0067] Preferably, the through hole 121 is a through hole with a large opening at one end and a small opening at the other end. An isolation sleeve 210 is fixed inside the through hole 121. The discharge section 201 is an elastic sleeve, such as a rubber sleeve, that fits against the inner wall of the through hole 121. The isolation sleeve 210 is sleeved on the outside of the glaze tube 200 to improve the sealing performance between the glaze tube 200 and the isolation sleeve 210.

[0068] like Figure 7 and Figure 11 As shown, an inner retaining ring 122 is provided on the inner wall of the through hole 121, and a limiting groove 211 matching the inner retaining ring 122 is provided on the isolation sleeve 210. When the isolation sleeve 210 is connected to the inner side of the through hole 121, the through hole 121 is embedded in the inner side of the limiting groove 211 to achieve axial limiting.

[0069] In this embodiment, the telescopic component 300 is existing technology. For example, if the telescopic component 300 is an electromagnetic telescopic structure, the output end of the telescopic component 300 passes through the isolation hole 132 and is fixedly connected to one end of the feed section 202 away from the discharge section 201 to drive the glaze tube 200 to reciprocate along the axial direction, thereby achieving precise start and stop of glaze supply.

[0070] Preferably, a mounting shaft 400 is also fixed to the side of the housing assembly 100. The mounting shaft 400 is fixedly connected to the front housing 110 and the rear housing 130 by bolts. The mounting shaft 400 is used to connect the actuator end of the motion part, such as the end of a robot arm.

[0071] As a preferred embodiment of this example, Figures 14 to 18As shown, the array-type control valve includes a valve housing 500, a valve core 600, and a drive motor 700. The valve housing 500 is a tubular structure closed at both ends, and the valve core 600 is a tubular structure closed at both ends. The valve core 600 is rotatably connected inside the valve housing 500, and the two are coaxially arranged. The drive motor 700 is fixedly connected to the outside of the valve housing 500. The drive motor 700 is used to drive the valve core 600 to rotate around its axis by a preset angle. The valve housing 500 has multiple control ports 512 distributed along its axis. The control ports 512 are connected to the air inlet 114 through pipelines. The valve core 600 has multiple air port control ports 613 distributed on it. When the valve core 600 rotates to a preset position, the air port control ports... 613 is connected to the corresponding control port 512. The air port control ports 613 are distributed in multiple rows in the circumferential direction. The number of air port control ports 613 in each row is different and they correspond to different control ports 512. That is, when the valve core 600 rotates to a preset angle, there is a corresponding air port control port 613 that is connected to the air inlet 114 through the control port 512. Thus, the on / off state of the air inlet 114 is controlled by rotating the valve core 600. In this embodiment, by setting the position of the air port control ports 613 to form a specific on / off combination sequence, the timing control of multiple glaze supply channels is realized, improving the flexibility and accuracy of the glazing process, reducing the number of load connections of the control unit, reducing the burden on the control unit, and improving system stability. An air inlet 511 is also provided on the outside of the valve housing 500. The air inlet 511 is used to connect the air supply component. The air supply component is connected to the air passage inside the valve housing 500 to provide a stable air source for the system.

[0072] Specifically, in this embodiment, the valve housing 500 includes a valve tube 510 and an outer plug 520. The valve tube 510 is a cylindrical body, and the outer plug 520 is threaded to both ends of the valve tube 510. The outer plug 520 is an end cap structure, and a sealing structure is provided at its connection with the valve tube 510 to ensure airtightness. The valve core 600 includes an inner valve tube 610 and an inner plug 620. The inner valve tube 610 is a cylindrical body, and the inner plug 620 is fixed to both ends of the inner valve tube 610. A rotating shaft structure is provided at the end of the inner plug 620 away from the inner valve tube 610. The rotating shaft structure passes through the outer plug 520 and is rotatably connected to the outer plug 520. The drive motor 700 is a stepper motor, which is fixedly connected to the valve tube 510. The drive motor 700 is connected to one of the inner plugs 620 through a synchronous belt structure to drive the valve core 600 to rotate precisely around its axis, thereby achieving on / off matching between each air port control port 613 and control port 512.

[0073] Preferably, the valve core 600 is provided with a connecting groove 611 at the position corresponding to the air inlet 511. The connecting groove 611 is an annular groove, and an inner tube air inlet 612 is provided on the connecting groove 611. The inner tube air inlet 612 penetrates the inner and outer sides of the valve inner tube 610, so that when the valve core 600 rotates, the air inlet 511 can always be connected to the inside of the valve inner tube 610.

[0074] Preferably, the valve inner tube 610 is further provided with a plurality of sealing ring grooves 615, and a sealing isolation ring 800 is provided in the sealing ring groove 615. The sealing isolation ring 800 is used to isolate the air port control port 613 in the axial direction, thereby realizing the independent air path between adjacent rows of air port control ports 613, preventing crosstalk, and ensuring accurate and reliable on / off control of each glaze channel.

[0075] Example 2

[0076] As another embodiment of the present invention, such as Figure 2 , Figure 4 , Figure 5 as well as Figure 17 and Figure 18 As shown, the telescopic component 300 includes a piston rod 310, a piston 320, and a pressure tube 330. One end of the piston rod 310 is fixedly connected to the end of the feed section 202 opposite to the discharge section 201 by means of threads or welding. The piston rod 310 is slidably connected to the isolation hole 132. The inner side of the isolation hole 132 has a stepped structure. The piston 320 is fixed to the end of the piston rod 310 away from the glaze tube 200. The pressure tube 330 is a cylindrical tube with an opening at one end. A connecting platform 135 is provided at the end of the rear housing 130 opposite to the middle housing 120. The isolation hole 132 penetrates the connecting platform 135. 35. The central platform 133 is fixedly connected to the connecting platform 135 by a thread. The piston 320 is slidably connected to the inside of the pressure tube 330. The pressure tube 330 has a control air port 331 on the side of the piston 320 near the rear housing 130 and an exhaust hole at a mirror position of the control air port 331. That is, the exhaust hole and the control air port 331 are mirror images of the pressure tube 330 about the axis of the pressure tube 330. The diameter of the exhaust hole is at least half the diameter of the control air port 331, so that when air is circulated into the pressure tube 330 through the control air port 331, the pressure of the pressure tube 330 increases.

[0077] After air is introduced into the control air port 331, the air pressure inside the pressure pipe 330 drives the piston 320 and the piston rod 310 to move away from the housing assembly 100, thereby driving the glaze tube 200 to slide inside the housing assembly 100, causing the feed port 203 to slide into the isolation hole 132. The pressure on the side of the piston 320 away from the piston rod 310 increases. After the air supply stops, the air on the side of the piston 320 near the housing assembly 100 is discharged from the exhaust port, and the pressure on the side of the piston 320 away from the piston rod 310 decreases, driving the piston rod 310 to move towards the front housing 110, causing the feed port 203 to slide out from the isolation hole 132.

[0078] Preferably, the end of the pressure tube 330 facing away from the housing assembly 100 is also provided with a mounting hole, such as a hexagonal groove, to facilitate tightening or disassembly with tools, thereby improving assembly efficiency and maintenance convenience.

[0079] Preferably, a reset structure, such as a spring or elastic rubber pad, can be provided between the bottom of the piston 320 and the pressure tube 330 to provide stable reset power during exhaust pressure reduction, ensuring that the piston assembly returns to its original position quickly and improving the accuracy of action response and operational reliability.

[0080] The valve inner tube 610 is also provided with a glaze control port 614. Some of the control ports 512 are connected to the control air ports 331 through pipelines. The glaze control ports 614 are correspondingly arranged with the control air ports 331. The distribution pattern of the glaze control ports 614 on the valve inner tube 610 corresponds to the distribution pattern of the air port control ports 613. When spraying glaze, the telescopic component 300 corresponding to the nozzle that needs to atomize the glaze does not introduce gas. The nozzle holes 111 on the outside of the nozzle that atomizes the glaze only spray gas. The other nozzle holes 111 neither spray gas nor participate in the atomization process, ensuring that the boundary of the glaze spray area is clear and the transition is smooth.

[0081] In this embodiment, the nine nozzles are named A, B, C, D, E, F, G, H, and I, with the middle nozzles designated B*, C*, D*, E*, F*, G*, and H*. When open, nozzles B*, C*, D*, E*, F*, G*, and H* atomize the glaze. The glaze control ports 614, from the end of the valve inner tube 610 to its center, are sequentially named 2*, 3*, 4*, 5*, 6*, 7*, and 8*. Ports 2*, 3*, 4*, 5*, 6*, and 7* control nozzles B*, C*, D*, E*, F*, G*, and H*, respectively. When air is supplied to ports 2*, 3*, 4*, 5*, 6*, and 7*, nozzles B*, C*, D*, E*, F*, G*, and H* are sequentially stopped from supplying glaze.

[0082] The air inlet control ports 613 are sequentially named 1, 2, 3, 4, 5, 6, 7, 8, and 9 from the end to the middle of the valve inner tube 610. The nine rows of nozzles A, B, C, D, E, F, G, H, and I are respectively controlled by the air inlet control ports 613 named 1, 2, 3, 4, 5, 6, 7, 8, and 9. When air is discharged from the nine air inlet control ports 613 613 through the control port 512, the nine rows of nozzles A, B, C, D, E, F, G, H, and I sequentially eject gas.

[0083] like Figure 18 As shown, the air control port 613 and the glaze control port 614 described in this embodiment have several distribution patterns. Figures (a), (b), (c), and (d) show four typical arrangements, corresponding to seven nozzles (B*, C*, D*, E*, F*, G*, H*) atomizing glaze, five nozzles (C*, D*, E*, F*, G*) atomizing glaze, three nozzles (D*, E*, F*) atomizing glaze, and one nozzle (E*) atomizing glaze. Figures (e), (f), and (g) show atypical arrangements, corresponding to H* nozzle atomizing glaze, F* and G* nozzles atomizing glaze, and E*, F*, and G* nozzles atomizing glaze, respectively.

[0084] It should be noted that the air control port 613 and the glaze control port 614 may have other distribution methods, which can be flexibly adjusted by engineers according to actual process requirements.

[0085] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0086] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of this invention, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0087] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A device for uniformly glazing ceramics, comprising a moving part, an air supply component, a glaze supply component, and a control part, wherein the control part controls the movement of the actuator of the moving part, the airflow rate of the air supply component, and the glaze flow rate of the glaze supply component, characterized in that, The glazing device also includes: The scanning unit is used to scan the shape of the workpiece; The glazing section includes an array of nozzles and an array of control valves. The array of nozzles is provided with multiple arrayed atomizing nozzles, and the array of control valves is provided with multiple valve holes corresponding to the atomizing nozzles. The control section controls the corresponding atomizing nozzles to spray atomized glaze material through the array of control valves to adapt to the shape of the workpiece part facing the nozzle.

2. The uniform glazing device for process ceramics according to claim 1, characterized in that, The atomizing nozzles are arranged in rows and columns. The outermost nozzles can only spray gas, while the innermost nozzles can spray both gas and glaze.

3. The uniform glazing device for process ceramics according to claim 2, characterized in that, The atomizing nozzle includes: The housing assembly has an array of spray holes inside, and a glaze chamber is also provided inside the housing assembly. The spray holes and the glaze chamber are isolated, and the housing assembly also has isolation holes inside the glaze chamber. Multiple glaze tubes are slidably connected to the inside of the housing assembly along their own axial direction. Each glaze tube corresponds to a spray nozzle capable of spraying glaze and is coaxially arranged. Each glaze tube is provided with an outlet section and an inlet section in the spray nozzle and the glaze chamber, respectively. The inlet section is provided with an inlet. One end of the inlet section is located in the isolation hole. When the glaze tube slides to a preset position, the inlet is located in the isolation hole. The telescopic component is used to move the glaze tube along its axis.

4. The uniform glazing device for process ceramics according to claim 3, characterized in that, The nozzles in the same column are connected by a connecting air chamber.

5. The uniform glazing device for process ceramics according to claim 3, characterized in that, The nozzle is a tapered orifice with a gradually decreasing opening.

6. The uniform glazing device for process ceramics according to any one of claims 3-5, characterized in that, The array-type control valve includes: The valve housing is a tubular structure closed at both ends. Multiple control ports are distributed along the axial direction of the valve housing, and an air inlet is also provided on the outer side of the valve housing. The valve core is a tubular structure closed at both ends. The valve core is rotatably connected to the inside of the valve housing, and the two are coaxially arranged. The valve core has multiple air control ports distributed on it. When the valve core rotates to a preset position, the air control ports are connected to the corresponding control ports. The air control ports are distributed in multiple rows in the circumferential direction. Each row has a different number of air control ports and corresponds to different control ports. When the valve core rotates, different control ports exhaust air. A drive motor is fixedly connected to the outside of the valve housing, and the drive motor is used to drive the valve core to rotate around its axis by a preset angle.

7. The uniform glazing device for process ceramics according to claim 6, characterized in that, The valve core has a connecting groove at the position corresponding to the main air inlet. The connecting groove is an annular groove, and an inner tube air inlet is provided on the connecting groove. The inner tube air inlet passes through the inner and outer sides of the valve core.

8. The uniform glazing device for process ceramics according to claim 6, characterized in that, The telescopic component includes: A piston rod, one end of which is fixedly connected to the end of the feed section opposite to the discharge section, and the piston rod is slidably connected to the isolation hole; Piston, the piston being fixedly connected to the end of the piston rod away from the glaze tube; The pressure tube is a cylindrical tube with an opening at one end. The piston is slidably connected to the inside of the pressure tube. The pressure tube has a control air port on the side of the piston near the housing assembly and an exhaust port at a mirror position of the control air port.

9. The uniform glazing device for process ceramics according to claim 8, characterized in that, The valve core is also provided with a glaze control port. Some of the control ports are connected to the control air ports through pipelines. The glaze control ports are arranged correspondingly to the control air ports. The distribution pattern of the glaze control ports on the valve core corresponds to the distribution pattern of the air port control ports.

10. The uniform glazing device for process ceramics according to claim 8, characterized in that, The pressure tube is also provided with a mounting hole at the end opposite to the housing assembly.

Images