A ceramic toilet bowl blank external spray glazing apparatus

Abstract

This invention provides an external spray glazing device for ceramic toilet blanks, belonging to the field of sanitary ceramics production equipment. It includes a cabinet, a rotary switching door assembly mounted on the cabinet, two blank rotation support platforms respectively mounted on both sides of the door assembly, and a glazing robot mounted inside the cabinet. The key feature is that a top anti-accumulation cleaning mechanism is installed on the top of the cabinet; this mechanism includes a top baffle, a fixing plate, a scraper, a fixing seat, a lead screw, and a motor. The top baffle is slidably mounted on the inner top wall of the cabinet, with one end extending out of the cabinet. The external spray glazing device for ceramic toilet blanks provided by this invention effectively suppresses glaze dripping from the top of the cabinet, improves the glazing yield, and features multi-stage glaze mist recovery, automatic descaling, and automated unloading functions, while also offering convenient operation and maintenance.

Description

Technical Field

[0001] This invention relates to the field of sanitary ceramics production equipment technology, and in particular to a ceramic toilet blank external spray glazing equipment. Background Technology

[0002] In the industrial mass production process of ceramic toilets, the outer wall spray glazing is a core process that determines the product's appearance quality and glaze protection performance. Currently, the industry generally uses automated spray glazing equipment to complete the overall glazing process of the toilet blank's outer wall. Existing technologies typically employ mainstream automated glazing equipment equipped with a closed cabinet spraying chamber, a rotary switching door assembly, a self-rotating blank-bearing fixture, and a multi-degree-of-freedom spraying robot. The equipment relies on the rotary door structure to rotate 180° to switch workstations, enabling alternating loading / unloading and internal spraying workstations. This allows for blank replacement without interrupting the spraying operation, effectively ensuring the continuity of the overall spraying process and mass production efficiency.

[0003] Existing conventional glazing cabinets have a closed cavity structure. During glazing, a large amount of glaze mist floats and diffuses within the cavity. Some of the glaze mist rises and contacts the inner wall of the top of the cabinet, gradually adhering, accumulating, and solidifying into liquid glaze. This accumulated glaze drips irregularly downwards, easily landing on the outer wall of the toilet bowl being glazed, ultimately forming spots and patches on the glaze surface, thus reducing the yield of the finished toilet. To eliminate glaze dripping defects on the top of the cabinet, operators currently rely on periodically cleaning the accumulated glaze on the top wall of the cabinet using scrapers and cloths. The glazing environment is humid, and the glaze dries easily, making manual cleaning difficult and time-consuming. Frequent shutdowns for cleaning also disrupt the continuous processing rhythm of the production line, reducing overall production efficiency.

[0004] Therefore, it is necessary to provide a ceramic toilet blank external spray glazing device to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this invention is to provide an external spray glazing equipment for ceramic toilet blanks that can effectively suppress glaze dripping on the top surface of the cabinet, improve the glazing yield, and has multi-stage glaze mist recovery, automatic descaling and automatic unloading functions, and is easy to operate and maintain.

[0006] To solve the above-mentioned technical problems, the present invention provides an external spray glazing device for ceramic toilet blanks, including a cabinet, a rotary switching door assembly installed on the cabinet, two blank self-rotating support platform assemblies respectively installed on both sides of the door of the rotary switching door assembly, and a spraying robot installed inside the cabinet. The top of the cabinet is equipped with a top anti-accumulation material cleaning mechanism.

[0007] The top anti-accumulation material cleaning mechanism includes a top baffle, a fixed plate, a scraper, a fixed seat, a lead screw, and a motor. The top baffle is slidably installed on the top inner wall of the cabinet, with one end extending out of the cabinet. The fixed plate is fixedly installed on the top of the end of the top baffle located outside the cabinet. The scraper is fixedly installed on the right inner wall of the cabinet for scraping off the glaze on the top baffle. The fixed seat is fixedly installed on the top of the cabinet. Multiple first limiting slide rods are slidably installed through the fixed seat, and one end of each of the multiple first limiting slide rods is fixedly connected to the fixed plate. A threaded sleeve is rotatably installed on the fixed seat. The lead screw is threaded through and screwed into the threaded sleeve, and one end of the lead screw is fixedly connected to the fixed plate. The motor is fixedly installed on the fixed plate and is drivenly connected to the threaded sleeve.

[0008] Preferably, the scraper includes a blade body, a front blade head, and a rear blade head, both of which are integrally formed with the blade body. There is a material passage gap between the front blade head and the rear blade head, and the front blade head has multiple discharge ports that communicate with the material passage gap.

[0009] Furthermore, a guide plate is fixedly installed on the bottom inner wall of the cabinet, and a bottom discharge port is opened on the front inner wall of the cabinet, with the lower edge of the bottom discharge port flush with the bottom inner wall of the cabinet.

[0010] Preferably, a plurality of slide rails are fixedly installed on the top of the cabinet, and a slider is slidably installed in each of the slide rails. A connecting block is fixedly installed at the bottom of the slider, the bottom of the connecting block extends into the cabinet and is fixedly connected to the top baffle, and the connecting block is movably connected to the cabinet.

[0011] Furthermore, an overflow suction mechanism is provided on the rear side of the cabinet to remove the glaze mist that escapes from inside the cabinet during glazing.

[0012] The material extraction mechanism includes a conical air collecting hood, a support platform, a material collection box, a filter box, and an exhaust fan. The conical air collecting hood is fixedly installed on the rear inner wall of the cabinet, with its larger end facing the internal cavity of the cabinet and its smaller end penetrating the cabinet and extending to the outside of the cabinet. The support platform is fixedly installed on the rear outer wall of the cabinet. The material collection box is fixedly installed on the top of the support platform, and a first discharge pipe is fixedly connected to the top of the material collection box. The top of the first discharge pipe is fixedly connected to the conical air collecting hood. The filter box is fixedly installed on the smaller end of the conical air collecting hood. The exhaust fan is fixedly installed on the top of the support platform. One end of the filter box away from the conical air collecting hood is fixedly connected to one end of an exhaust pipe, and the other end of the exhaust pipe is fixedly connected to the air inlet of the exhaust fan.

[0013] Furthermore, several V-shaped baffles are fixedly installed on the top inner wall of the filter box, a conical guide hopper is fixedly connected to the bottom of the filter box, a second discharge pipe is fixedly connected to the bottom opening of the conical guide hopper, the bottom end of the second discharge pipe is fixedly connected to the collection box, a core-holding box located behind the V-shaped baffles is provided inside the filter box, filter cotton is provided inside the core-holding box, and a top sealing plate is fixedly installed on the top of the core-holding box, and the top sealing plate is fixedly connected to the top of the filter box.

[0014] Furthermore, a scraper is provided inside the filter box, and the scraper has several V-shaped scraping openings. Several V-shaped baffles pass through the corresponding V-shaped scraping openings and are slidably connected to the inner wall of the corresponding V-shaped scraping openings. Four second limiting slide rods arranged in a rectangular array are slidably installed on the top of the filter box. The bottom ends of the four second limiting slide rods extend into the filter box and are fixedly connected to the scraper. The top ends of the four second limiting slide rods are fixedly installed with the same first common connecting plate. A first electric push rod is fixedly installed on the top of the filter box, and the telescopic end of the first electric push rod is fixedly connected to the first common connecting plate.

[0015] Furthermore, a pusher plate is provided inside the collection box, and a discharge port is opened on the right outer wall of the collection box. An inner blocking plate is provided inside the discharge port. Two connecting rods are fixedly installed between the inner blocking plate and the pusher plate. An outer sealing plate is fixedly installed on the right outer wall of the inner blocking plate. The outer sealing plate is in contact with the collection box. Two third limiting slide rods are slidably installed on the right outer wall of the collection box. The right ends of the two third limiting slide rods extend into the collection box and are fixedly connected to the pusher plate. The right ends of the two third limiting slide rods are fixedly installed with the same second common connecting plate. A second electric push rod is fixedly installed on the top of the support platform. The telescopic end of the second electric push rod is fixedly connected to the second common connecting plate.

[0016] Preferably, the connection between the right outer wall of the inner blocking plate and the adjacent four outer walls is chamfered.

[0017] Furthermore, a baffle is fixedly installed on the left inner wall of the collection box, and a guide slope is provided on the top of the baffle. The pusher plate is located below the baffle.

[0018] Compared with related technologies, the ceramic toilet blank external spray glazing equipment provided by the present invention has the following beneficial effects:

[0019] 1. This invention is equipped with a top anti-accumulation cleaning mechanism. The top baffle receives the glaze mist drifting from inside the cabinet, replacing the glaze accumulation on the inner wall of the top of the cabinet and preventing the glaze mist from directly adhering to and solidifying on the top wall of the cabinet. At the same time, in conjunction with an automatic scraping structure composed of a motor, lead screw, scraper and other components, the glaze continuously accumulated on the bottom surface of the top baffle can be scraped off in time. This completely eliminates the problem of glaze accumulation dripping onto the surface of the toilet blank, causing appearance defects such as spots and patches. There is no need for frequent manual cleaning of the top glaze. While ensuring the uniformity of the glaze surface of the toilet blank and the production yield, it effectively reduces the intensity of manual maintenance of the equipment.

[0020] 2. This invention incorporates an escape suction mechanism to collect glaze mist escaping from the cabinet under negative pressure. This, combined with a top anti-accumulation cleaning mechanism, forms a synergistic protection system, specifically addressing the problem of glaze dripping from the top of the equipment. A conical air hood gathers glaze mist over a wide area under negative pressure, effectively reducing the volume of mist that floats upwards and significantly decreasing the probability of glaze mist adhering and accumulating at the bottom of the top baffle. This helps suppress glaze accumulation at the top from the airflow source, further avoiding defects on the glaze surface caused by glaze dripping. After the airflow enters the air hood, some glaze mist, due to reduced momentum, collides and adheres to the inner wall under gravity, converging directly into the collection box via the first discharge pipe. Residual glaze mist enters the filter box with the airflow, undergoing secondary gas-liquid separation through inertial reversal and collision by a V-shaped baffle. Finally, fine glaze mist particles are intercepted by filter cotton for purification. This multi-stage interception structure maximizes glaze mist recovery and suppresses irregular drift, improving the workshop working environment and further increasing the total amount of glaze recovered.

[0021] 3. The present invention has an automatic scraping structure inside the filter box. The scraper is driven by the first electric push rod to slide vertically back and forth along the V-shaped baffle, which can scrape off the glaze scale accumulated on both sides of the baffle in real time and comprehensively. This avoids the problem of glaze scale clogging the air duct, causing negative pressure attenuation and exhaust failure after long-term operation. This structure does not require manual disassembly and cleaning of the filter box, and can ensure the smooth airflow and glaze mist suction and purification effect of the material extraction mechanism for a long time. The equipment has higher stability during continuous operation.

[0022] 4. The present invention is equipped with an automatic pushing and unloading structure in the collection box. The second electric push rod links the pushing plate and the inner blocking plate to move synchronously, which can automatically complete the opening and closing of the discharge port and the pushing and unloading of glaze, realize the automated discharge of recycled glaze, effectively reduce the frequency of manual cleaning of the collection box, simplify equipment operation and maintenance, and adapt to the production conditions of long-term continuous glazing in factories. Attached Figure Description

[0023] Figure 1 A schematic diagram of the front view of the external spray glazing device for ceramic toilet blanks provided by the present invention;

[0024] Figure 2 for Figure 1A schematic diagram of the structure of the external spray glazing equipment for the ceramic toilet blank, viewed from the rear side.

[0025] Figure 3 for Figure 1 A top-view cross-sectional view of the external spray glazing equipment for the ceramic toilet blank.

[0026] Figure 4 for Figure 1 The rear sectional view of the external spray glazing equipment for the ceramic toilet blank shown.

[0027] Figure 5 for Figure 4 The enlarged view of part A shown;

[0028] Figure 6 for Figure 1 The diagram shows the structure of the top anti-accumulation and material clearing mechanism.

[0029] Figure 7 for Figure 5 The diagram shows the structure of the scraper;

[0030] Figure 8 for Figure 2 The diagram shows the structure of the material suction mechanism from the left side.

[0031] Figure 9 for Figure 9 The diagram shows a structural schematic of the material extraction mechanism from the front view.

[0032] Figure 10 for Figure 8 The diagram shows the structure of the filter box and the components mounted on it.

[0033] Figure 11 for Figure 10 The diagram shows the connection of the scraper, the second limiting slide bar, and the first connecting plate.

[0034] Figure 12 for Figure 10 The diagram shows a cross-sectional view of the filter box from a top-down perspective.

[0035] Figure 13 for Figure 10 The diagram shows the structure of the filter box from a bottom-view perspective;

[0036] Figure 14 for Figure 10 A schematic diagram of the core holder installed inside the filter box shown.

[0037] Figure 15 for Figure 8 The diagram shows a cross-sectional view of the aggregate box from the rear side.

[0038] Figure 16 for Figure 15 A schematic diagram of the internally installed components in the pushing state.

[0039] Numbering on the map:

[0040] 100. Cabinet body; 200. Rotary switching door assembly; 300. Green body self-rotating support platform assembly; 400. Glazing robot arm; 1001. Bottom discharge port;

[0041] 1. Top baffle; 2. Fixing plate; 3. Scraper; 4. Fixing base; 5. First limit slide bar; 6. Screw sleeve; 7. Lead screw; 8. First gear; 9. Motor; 10. Second gear; 11. Guide sloping plate; 12. Conical air collector hood; 13. Support platform; 14. First discharge pipe; 15. Collection box; 16. Filter box; 17. Exhaust pipe; 18. Exhaust fan; 19. Conical guide hopper; 20. Second... 21. Feed pipe; 22. V-shaped baffle; 23. Scraper; 24. V-shaped scraper opening; 25. Second limit slide bar; 26. First connecting plate; 27. First electric push rod; 28. Core box; 29. ​​Filter cotton; 30. Top sealing plate; 31. Push plate; 32. Connecting rod; 33. Inner blocking plate; 34. Outer sealing plate; 35. Third limit slide bar; 36. Second connecting plate; 37. Second electric push rod. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Please refer to the following: Figures 1-16 A ceramic toilet blank external spray glazing device includes: a cabinet 100, a rotary switching door assembly 200 mounted on the cabinet 100, two blank rotation support platform assemblies 300 respectively mounted on both sides of the door of the rotary switching door assembly 200, and a glazing robot 400 mounted inside the cabinet 100. Both the rotary switching door assembly 200 and the blank rotation support platform assembly 300 adopt conventional and mature designs from existing rotary spray booths. The rotary switching door assembly 200 achieves workstation switching by rotating along a vertical axis. The blank rotation support platform assembly 300 has its own rotation drive structure, which can support the toilet blank to rotate at a uniform speed to complete all-round spraying. A top anti-accumulation cleaning mechanism is installed on the top of the cabinet 100.

[0044] The top anti-accumulation cleaning mechanism includes a top baffle 1, a fixing plate 2, a scraper 3, a fixing seat 4, a lead screw 7, and a motor 9. The top baffle 1 is slidably installed on the top inner wall of the cabinet 100, with one end extending outside the cabinet 100. The purpose of the top baffle 1 is to prevent glaze mist from directly accumulating and condensing into glaze liquid on the top inner wall of the cabinet 100, and to prevent the accumulated glaze liquid from dripping uncontrollably onto the surface of the toilet blank below, causing spots and patches on the glaze surface. The glaze mist first adheres to the bottom surface of the top baffle 1, replacing the glaze on the top surface of the cabinet, thus avoiding dripping defects on the top wall from the source. The fixing plate 2 is fixedly installed on the top of the top baffle 1 at the end outside the cabinet 100. The scraper 3 is fixedly installed on the inner right side wall of the cabinet 100 and is used to scrape off the glaze on the top baffle 1. The scraper 3 includes a blade body, a front blade head, and a rear blade head. The front blade head and the rear blade head are integrally formed with the blade body. There is a material passage gap between the front blade head and the rear blade head. The front blade head has multiple feeding ports that communicate with the material passage gap. The combined design of the front blade head and the rear blade head can increase the reliability of scraping. The scraped glaze flows into the material passage gap through the feeding ports and falls down, all along the cabinet 100. The spraying flow is directed along the inner wall on the right side, preventing it from scattering and dripping and interfering with the spraying operation. The fixed base 4 is fixedly installed on the top of the cabinet 100. Multiple first limiting slide rods 5 are slidably mounted through and on the fixed base 4. One end of each first limiting slide rod 5 is fixedly connected to the fixed plate 2. The first limiting slide rods 5 serve as guides and limits, restricting the fixed plate 2 to move only horizontally in a straight line. A threaded sleeve 6 is rotatably mounted on the fixed base 4. A lead screw 7 is threaded through and installed in the threaded sleeve 6. One end of the lead screw 7 is fixedly connected to the fixed plate 2. The motor 9 is fixedly mounted on the fixed plate 2. The motor 9 and the lead screw... The transmission connection of sleeve 6 is as follows: Specifically, a first gear 8 is fixedly sleeved on the outer side of the sleeve 6, and a second gear 10 is fixedly sleeved on the output end of the motor 9. The first gear 8 and the second gear 10 mesh with each other. The entire mechanism is started at regular intervals. The motor 9 drives the sleeve 6 to rotate. The screw rod 7 moves linearly by relying on the threaded engagement, which in turn drives the top baffle 1 to move horizontally and extend out of the cabinet 100. When the bottom surface of the top baffle 1 passes the scraper 3, the scraper 3 scrapes off the glaze accumulated on the bottom surface of the top baffle 1. The scraped-off glaze flows down the inner wall of the right side of the cabinet 100.

[0045] In this embodiment, a guide plate 11 is fixedly installed on the bottom inner wall of the cabinet 100, and a bottom discharge port 1001 is opened on the front inner wall of the cabinet 100. The lower edge of the bottom discharge port 1001 is flush with the bottom inner wall of the cabinet 100. Excess glaze that drips from the spraying will be collected in the right side area inside the cabinet 100 under the guiding action of the guide plate 11, and finally discharged outward through the bottom discharge port 1001 for recycling.

[0046] In this embodiment, in order to reliably support the top baffle 1 without affecting its forward and backward movement, multiple slide rails are fixedly installed on the top of the cabinet 100. Slider blocks are slidably installed in each of the multiple slide rails. A connecting block is fixedly installed at the bottom of the slider. The bottom of the connecting block extends into the cabinet 100 and is fixedly connected to the top baffle 1. Multiple clearance slots are opened on the top of the cabinet 100. The connecting block is located in the clearance slot and is movably connected to the inner wall of the clearance slot.

[0047] In this embodiment, an overflow suction mechanism is provided on the rear side of the cabinet 100 to remove the glaze mist that escapes from inside the cabinet 100 during glazing.

[0048] The material extraction mechanism includes a conical air collector 12, a support platform 13, a material collection box 15, a filter box 16, and an exhaust fan 18. The conical air collector 12 is fixedly installed on the rear inner wall of the cabinet 100. The larger end of the conical air collector 12 faces the internal cavity of the cabinet 100, and the smaller end penetrates the cabinet 100 and extends to the outside of the cabinet 100. The larger end of the conical air collector 12 gathers the glaze mist drifting inside the cabinet 100 over a wide area, while the smaller end narrows the airflow to form a directional airflow. The support platform 13 is fixedly installed on the rear outer wall of the cabinet 100. The material collection box 15 is fixedly installed on the top of the support platform 13. The top of the material collection box 15 is fixedly connected to a first discharge pipe 14. The top of pipe 14 is fixedly connected to the conical air collecting hood 12. The first feeding pipe 14 receives the glaze slurry flowing from the inner wall of the conical air collecting hood 12 and guides the glaze slurry into the collection box 15 for temporary storage. The filter box 16 is fixedly installed on the small end of the conical air collecting hood 12. The exhaust fan 18 is fixedly installed on the top of the support platform 13. The end of the filter box 16 away from the conical air collecting hood 12 is fixedly connected to the end of the exhaust pipe 17. The other end of the exhaust pipe 17 is fixedly connected to the air inlet of the exhaust fan 18. The exhaust fan 18 continuously operates to generate negative pressure, allowing the glaze mist inside the cabinet 100 to flow along the conical air collecting hood 12, the filter box 16, and the exhaust pipe 17, forming a complete directional negative pressure path.

[0049] In this embodiment, several V-shaped baffles 21 are fixedly installed on the top inner wall of the filter box 16. After the airflow passes through the conical air collecting hood 12, the residual glaze mist carried by the airflow turns and deflects multiple times when passing through the V-shaped baffles 21. The glaze mist droplets rely on inertia to impact the surface of the V-shaped baffles 21 and accumulate and liquefy, thus achieving gas-liquid separation of the glaze mist. The bottom of the filter box 16 is fixedly connected to a conical guide hopper 19, and the bottom opening of the conical guide hopper 19 is fixedly connected to a second discharge pipe 20. The bottom end of the second discharge pipe 20 is fixedly connected to the collection box 15. The glaze condensed by the V-shaped baffles 21 flows downward, gathers after passing through the conical guide hopper 19, and flows along the second discharge pipe. 20 flows into the collection bin 15 to complete the recycling and summarization. Inside the filter box 16, there is a core box 26 located behind the V-shaped baffle 21. The core box 26 contains filter cotton 27. The filter cotton 27 intercepts fine glaze mist particles that penetrate the V-shaped baffle 21, achieving secondary purification. A top sealing plate 28 is fixedly installed on the top of the core box 26. The top sealing plate 28 is fixedly connected to the top of the filter box 16 and is fixedly connected to the filter box 16 by bolts. A handle is welded to its top. After releasing the fixation between the top sealing plate 28 and the filter box 16, the core box 26 can be lifted out through the handle for easy replacement of the filter cotton 27.

[0050] Furthermore, a scraper 22 is provided inside the filter box 16. The scraper 22 has several V-shaped scraping openings 2201. Several V-shaped baffles 21 pass through the corresponding V-shaped scraping openings 2201 and are slidably connected to the inner wall of the corresponding V-shaped scraping openings 2201. The V-shaped scraping openings 2201 are adapted to the shape of the V-shaped baffles 21. The scraper 22 can be raised and lowered to completely scrape away the glaze accumulated on both sides of the V-shaped baffles 21, preventing blockage of the V-shaped baffles 21 that could cause poor airflow and insufficient negative pressure. Four second limiting slide rods 23 arranged in a rectangular array are slidably installed on the top of the filter box 16. The bottom ends of the four second limiting slide rods 23 extend into the filter box 16. All are fixedly connected to the scraper 22. The top of the four second limiting slide rods 23 are fixedly installed with the same first common plate 24. The four second limiting slide rods 23 restrict the vertical lifting and lowering of the scraper 22 to ensure that the scraper 22 does not tilt. The first common plate 24 synchronously drives all the second limiting slide rods 23, so that the force is evenly distributed. The top of the filter box 16 is fixedly installed with a first electric push rod 25. The telescopic end of the first electric push rod 25 is fixedly connected to the first common plate 24. The first electric push rod 25 drives the first common plate 24 to lift and lower, driving the scraper 22 to reciprocate, automatically cleaning the glaze on the surface of the V-shaped baffle 21 without the need to disassemble the filter box 16 for manual cleaning.

[0051] In this embodiment, a pusher plate 29 is provided inside the collection box 15. A discharge port is opened on the right outer wall of the collection box 15, and an inner blocking plate 31 is provided inside the discharge port. The connection between the right outer wall of the inner blocking plate 31 and the adjacent four outer walls is chamfered. The chamfered structure can prevent material from getting stuck when the outer sealing plate 32 is in contact with the corners, improve the sealing effect, and reduce the probability of damage to the corners. Two connecting rods 30 are fixedly installed between the inner blocking plate 31 and the pusher plate 29. An outer sealing plate 32 is fixedly installed on the right outer wall of the inner blocking plate 31. The outer sealing plate 32 is in contact with the collection box 15. The inner blocking plate 31 and the outer sealing plate 32 double-close the discharge port to prevent the glaze from leaking inside the collection box 15. A sliding installation is provided on the right outer wall of the collection box 15. There are two third limiting slide rods 33, the right ends of which extend into the collection box 15 and are fixedly connected to the pusher plate 29. The right ends of the two third limiting slide rods 33 are fixedly installed with the same second common connecting plate 34. The top of the support platform 13 is fixedly installed with a second electric push rod 35. The telescopic end of the second electric push rod 35 is fixedly connected to the second common connecting plate 34. The second electric push rod 35 drives the second common connecting plate 34 and the third limiting slide rods 33 to move horizontally. The pusher plate 29 and the inner blocking plate 31 move forward and backward synchronously through the connecting rod 30. The inner blocking plate 31 moves outward to open the discharge port, and the pusher plate 29 pushes the glaze material in the collection box 15 out. When the inner blocking plate 31 returns to its original position, it closes the discharge port again, realizing automated unloading.

[0052] In this embodiment, a baffle is fixedly installed on the left inner wall of the collection box 15. A guide slope is provided on the top of the baffle. The pusher plate 29 is located below the baffle. The guide slope on the top of the baffle guides the falling glaze to the lower part of the collection box 15 and the right side of the pusher plate 29, ensuring that the pusher plate 29 can push the vast majority of the recycled glaze.

[0053] In this embodiment:

[0054] During operation, this ceramic toilet blank external spray glazing equipment uses the outer station of the rotary switching door assembly 200 to place the toilet blank. The rotary switching door assembly 200 rotates 180° around its own vertical axis to transfer the blank rotating support platform assembly 300 carrying the toilet blank to the relatively closed cavity of the cabinet 100. The glazing robot arm 400 performs multi-degree-of-freedom spatial movements inside the cabinet 100, and the blank rotating support platform assembly 300 drives the toilet blank to rotate at a uniform speed. The two work together to complete the all-round spray glazing of the outer surface of the toilet blank.

[0055] During the glazing process, the glaze mist floating upwards inside the cabinet 100 cavity is caught and blocked by the top baffle 1, preventing it from directly adhering to and accumulating on the top inner wall of the cabinet 100. The top anti-accumulation cleaning mechanism is activated periodically. The motor 9 drives the screw sleeve 6 to rotate via the meshing first gear 8 and second gear 10. The screw sleeve 6 drives the lead screw 7 to move horizontally and linearly via threaded transmission. The lead screw 7 pushes the fixing plate 2 and the top baffle 1 to move outwards from the cabinet 100. When the top baffle 1 moves past the scraper 3 on the right inner wall of the cabinet 100, the front cutting head of the scraper 3... As the top baffle 1 moves outward, the blade scrapes off the glaze accumulated at the bottom of the top baffle 1. The scraped glaze flows down the inner wall of the right side of the cabinet 100, preventing the glaze from dripping onto the toilet bowl surface and forming glaze spots or patches. The guide plate 11 at the bottom of the cabinet 100 has a guiding and converging effect. During the spraying operation, excess glaze dripping from the bowl falls onto the guide plate 11 and is guided and converged to the right side of the cabinet 100. Both glaze streams eventually converge at the bottom discharge port 1001 for unified discharge and recycling.

[0056] During the glazing process, the material extraction mechanism at the rear of the cabinet 100 operates synchronously throughout the entire process. The exhaust fan 18 continuously works to provide negative pressure suction for the entire pipeline. The glaze mist scattered throughout the cabinet 100 is collected by the conical air collecting hood 12 and transformed into directional airflow that enters the filter box 16. After the airflow enters the conical air collecting hood 12, some of the glaze mist, due to the initial decrease in momentum, falls under the influence of gravity and collides with the inner wall of the conical air collecting hood 12, adhering and accumulating to form liquid glaze. This portion of glaze flows downward along the inner wall of the conical air collecting hood 12 and flows directly into the collection box 15 for recycling via the first discharge pipe 14. The airflow carries the residual glaze mist through multiple sets of filters inside the filter box 16. During the process of the V-shaped baffle 21, the direction of travel will be reversed multiple times. Due to inertial impact, the glaze mist droplets adhere to the surface of the V-shaped baffle 21 and condense and liquefy, realizing the gas-liquid separation of glaze mist and air. The glaze material condensed on the V-shaped baffle 21 flows downward, and after being gathered by the conical guide hopper 19, it flows into the collection box 15 through the second discharge pipe 20. The trace fine glaze mist particles that pass through the V-shaped baffle 21 will be intercepted and purified a second time by the filter cotton 27 in the core box 26. The clean air is finally sent to the exhaust fan 18 through the exhaust pipe 17 and discharged to the outside. The core box 26 can be removed by removing the top sealing plate 28 to replace the filter cotton 27, which is convenient for maintenance.

[0057] The first electric push rod 25 can be activated periodically. The first electric push rod 25 pulls the first connecting plate 24 and the second limiting slide rod 23, which drives the scraper 22 to move up and down along the V-shaped baffle 21. The glaze accumulated on both sides of the V-shaped baffle 21 is automatically scraped off by the V-shaped scraper 2201 with the matching structure, so as to maintain the smooth airflow in the pipeline. After the collection box 15 has accumulated enough recycled glaze, the second electric push rod 35 is activated. The second electric push rod 35 drives the second connecting plate 34 and the third limiting slide rod 33 to move horizontally. Through the connecting rod 30, the pusher plate 29, the inner blocking plate 31 and the outer sealing plate 32 move outward in sync, and the discharge port opens. The pusher plate 29 pushes the glaze inside the collection box 15 outward for discharge. After the discharge is completed, the second electric push rod 35 is reset, and the inner blocking plate 31 and the outer sealing plate 32 close again to seal the discharge port, so as to ensure the negative pressure sealed environment of the material suction mechanism.

[0058] The entire equipment relies on a top baffle 1 to isolate glaze drips from the top surface of the cabinet 100, and a guide plate 11 to uniformly collect liquid glaze. These two components work in conjunction with the spillage suction mechanism to constrain the irregular dispersion of glaze mist and stabilize the airflow within the cabinet 100. This avoids airflow disturbances that could interfere with the glaze atomization effect, improving the glaze quality of the toilet bowl blank, and also enables the unified recycling of various glaze materials. The equipment utilizes existing mature rotary switching door components 200 and blank rotation support platform components 300 to ensure efficient production capacity for simultaneous spraying and loading / unloading. Combined with a self-designed automated cleaning and multi-stage glaze mist recovery and descaling structure, it significantly reduces the frequency of manual cleaning, increases the glaze recycling rate, and enhances the stability of glazing production.

[0059] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A ceramic toilet blank external spray glazing device, comprising a cabinet, a rotary switching door assembly mounted on the cabinet, two blank rotation support platform assemblies respectively mounted on both sides of the door of the rotary switching door assembly, and a glazing robot mounted inside the cabinet, characterized in that, The top of the cabinet is equipped with a top anti-accumulation material clearing mechanism; The top anti-accumulation material cleaning mechanism includes a top baffle, a fixed plate, a scraper, a fixed seat, a lead screw, and a motor. The top baffle is slidably installed on the top inner wall of the cabinet, with one end extending out of the cabinet. The fixed plate is fixedly installed on the top of the end of the top baffle located outside the cabinet. The scraper is fixedly installed on the right inner wall of the cabinet for scraping off the glaze on the top baffle. The fixed seat is fixedly installed on the top of the cabinet. Multiple first limiting slide rods are slidably installed through the fixed seat, and one end of each of the multiple first limiting slide rods is fixedly connected to the fixed plate. A threaded sleeve is rotatably installed on the fixed seat. The lead screw is threaded through and screwed into the threaded sleeve, and one end of the lead screw is fixedly connected to the fixed plate. The motor is fixedly installed on the fixed plate and is drivenly connected to the threaded sleeve.

2. The ceramic toilet blank external spray glazing equipment according to claim 1, characterized in that, The scraper includes a blade body, a front cutter head, and a rear cutter head. The front cutter head and the rear cutter head are integrally formed with the blade body. There is a material passage gap between the front cutter head and the rear cutter head. The front cutter head has multiple discharge ports that communicate with the material passage gap.

3. The ceramic toilet blank external spray glazing equipment according to claim 1, characterized in that, A guide plate is fixedly installed on the bottom inner wall of the cabinet, and a bottom discharge port is opened on the front inner wall of the cabinet. The lower edge of the bottom discharge port is flush with the bottom inner wall of the cabinet.

4. The ceramic toilet blank external spray glazing equipment according to claim 1, characterized in that, Multiple slide rails are fixedly installed on the top of the cabinet, and sliders are slidably installed in each of the slide rails. A connecting block is fixedly installed at the bottom of each slider, and the bottom of the connecting block extends into the cabinet and is fixedly connected to the top baffle. The connecting block is movably connected to the cabinet.

5. The ceramic toilet blank external spray glazing equipment according to claim 1, characterized in that, An efflorescence extraction mechanism is installed on the rear side of the cabinet to remove glaze mist that escapes from inside the cabinet during glazing. The material extraction mechanism includes a conical air collecting hood, a support platform, a material collection box, a filter box, and an exhaust fan. The conical air collecting hood is fixedly installed on the rear inner wall of the cabinet, with its larger end facing the internal cavity of the cabinet and its smaller end penetrating the cabinet and extending to the outside of the cabinet. The support platform is fixedly installed on the rear outer wall of the cabinet. The material collection box is fixedly installed on the top of the support platform, and a first discharge pipe is fixedly connected to the top of the material collection box. The top of the first discharge pipe is fixedly connected to the conical air collecting hood. The filter box is fixedly installed on the smaller end of the conical air collecting hood. The exhaust fan is fixedly installed on the top of the support platform. One end of the filter box away from the conical air collecting hood is fixedly connected to one end of an exhaust pipe, and the other end of the exhaust pipe is fixedly connected to the air inlet of the exhaust fan.

6. The ceramic toilet blank external spray glazing equipment according to claim 5, characterized in that, Several V-shaped baffles are fixedly installed on the top inner wall of the filter box. A conical guide hopper is fixedly connected to the bottom of the filter box. A second discharge pipe is fixedly connected to the bottom opening of the conical guide hopper. The bottom end of the second discharge pipe is fixedly connected to the collection box. A core-holding box located behind the V-shaped baffles is provided inside the filter box. Filter cotton is provided inside the core-holding box. A top sealing plate is fixedly installed on the top of the core-holding box. The top sealing plate is fixedly connected to the top of the filter box.

7. The ceramic toilet blank external spray glazing equipment according to claim 6, characterized in that, The filter box is equipped with a scraper, which has several V-shaped scraping openings. Several V-shaped baffles pass through the corresponding V-shaped scraping openings and are slidably connected to the inner wall of the corresponding V-shaped scraping openings. Four second limiting slide rods arranged in a rectangular array are slidably installed on the top of the filter box. The bottom ends of the four second limiting slide rods extend into the filter box and are fixedly connected to the scraper. The top ends of the four second limiting slide rods are fixedly installed with the same first common connecting plate. A first electric push rod is fixedly installed on the top of the filter box, and the telescopic end of the first electric push rod is fixedly connected to the first common connecting plate.

8. The ceramic toilet blank external spray glazing equipment according to any one of claims 5-7, characterized in that, The material collection box is equipped with a pusher plate. A discharge port is opened on the right outer wall of the material collection box. An inner blocking plate is installed in the discharge port. Two connecting rods are fixedly installed between the inner blocking plate and the pusher plate. An outer sealing plate is fixedly installed on the right outer wall of the inner blocking plate. The outer sealing plate is in contact with the material collection box. Two third limiting slide rods are slidably installed on the right outer wall of the material collection box. The right ends of the two third limiting slide rods extend into the material collection box and are fixedly connected to the pusher plate. The right ends of the two third limiting slide rods are fixedly installed with the same second common connecting plate. A second electric push rod is fixedly installed on the top of the support platform. The telescopic end of the second electric push rod is fixedly connected to the second common connecting plate.

9. The ceramic toilet blank external spray glazing equipment according to claim 8, characterized in that, The right outer wall of the inner plug plate is chamfered at the connection with the four adjacent outer walls.

10. The ceramic toilet blank external spray glazing equipment according to claim 8, characterized in that, A baffle is fixedly installed on the left inner wall of the collection box, and a guide slope is provided on the top of the baffle. The pusher plate is located below the baffle.

Images