A spraying machine with anti-blocking function

Abstract

The utility model relates to spraying machine technical field discloses a spraying machine with prevent blocking function, the bottom side fixed mounting of storage tank has the discharge pipe, the inside fixed mounting of discharge pipe has the outer tube, through setting two groups of scraper structure in the both sides of filter screen, under the cooperation of rotary motor, drive shaft and bevel gear transmission structure, rotary motor output power is passed through the shaft coupling and is passed to drive shaft, and the lower extreme of drive shaft no.

Description

Technical Field

[0001] This utility model relates to the field of spraying machine technology, and in particular to a spraying machine with anti-clogging function. Background Technology

[0002] In the current field of spray painting technology, spray painting machines are widely used in many industries such as construction, automobile manufacturing, and furniture. Their main function is to evenly spray paint onto the surface of a target object. The working principle of a spray painting machine is usually to use pressure to transport paint from a storage container through a pipeline to a spray gun, and then the spray gun atomizes and sprays the paint out.

[0003] If powdered raw materials are not fully dispersed and dissolved during the coating preparation process, they are very likely to form agglomerated particles. When these agglomerated particles flow through the pipeline with the coating, they will be intercepted and retained by the filter screen, causing the effective filtration area of ​​the filter screen to gradually decrease and the fluid resistance in the pipeline to increase significantly. When the degree of blockage reaches a certain threshold, it will not only cause a decrease in the coating delivery flow and unstable spraying pressure, affecting coating efficiency and coating uniformity, but may even cause serious failures such as pipeline rupture and equipment shutdown due to excessive local pressure. Utility Model Content

[0004] In response to the problem that as the effective filtration area of ​​the filter screen gradually decreases and the fluid resistance in the pipeline increases significantly, when the degree of blockage reaches a certain threshold, it will not only cause a decrease in paint delivery flow and unstable spraying pressure, affecting coating efficiency and coating uniformity, but may even cause serious failures such as pipeline rupture and equipment shutdown due to excessive local pressure. This utility model provides a spraying machine with anti-clogging function, which has the advantages of automatically cleaning the filter screen and breaking up agglomerated materials, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a spraying machine with anti-clogging function, including a storage box, a discharge pipe fixedly installed on one side of the bottom of the storage box, an outer pipe fixedly installed inside the discharge pipe, a filter screen fixedly installed in the middle of the inner side of the outer pipe, fixed plates fixedly installed on both sides of the outer pipe, an air guide column rotatably installed in the middle of the inner side of the fixed plate, multiple scrapers fixedly installed on the side of the air guide column near the outer pipe, a second bevel gear installed through the fixed plate on one side of the air guide column, a protective box fixedly installed at the upper end of the discharge pipe, the bottom of the protective box penetrating inside the discharge pipe, a rotary motor installed at the upper end of the protective box, a drive shaft provided at the upper inner side of the protective box, the output end of the rotary motor connected to the upper end of the drive shaft through a coupling, a first bevel gear fixedly installed at the bottom of the drive shaft, and the bottom of the first bevel gear meshing with the side of the second bevel gear.

[0006] Preferably, the plurality of scrapers are respectively attached to both sides of the filter screen, and the second bevel gear is fixedly installed on the outer wall of the air guide column.

[0007] By using a scraper that adheres to both sides of the filter screen, it can simultaneously clean clumps on both sides of the filter screen, improving cleaning efficiency and thoroughness.

[0008] Preferably, the scraper has a hollow structure inside, and multiple injection holes are opened on the surface of the scraper. An air intake channel is opened inside the air guide column, and the air intake channel is connected to the interior of multiple scrapers.

[0009] By using the internal perforations of the scraper and the design of the spray holes, high-pressure airflow is ejected from the spray holes through the air intake channel, impacting and breaking up the filter screen clumps to improve the cleaning effect.

[0010] Preferably, an air booster output pump is fixedly installed on the outside of the discharge pipe, and an air inlet pipe is installed at the output end of the air booster output pump, with the bottom of the air inlet pipe penetrating inside the discharge pipe.

[0011] By setting up an air booster output pump, external air is pressurized and delivered into the discharge pipe, providing high-pressure airflow power for cleaning filter screen clumping.

[0012] Preferably, a rotary joint is installed at one end of the air inlet pipe inside the discharge pipe, and the other side of the rotary joint is installed at the end of the air guide column near the second bevel gear.

[0013] By setting a rotary joint, a rotatable connection is established between the air inlet pipe and the air guide column, ensuring that the high-pressure airflow can still be stably delivered and prevent blockage when the air guide column rotates.

[0014] Preferably, a support plate is fixedly installed at the bottom of the storage box, a conveying pump is installed at the upper end of the support plate, the side of the discharge pipe away from the storage box is connected to the side of the output pump, a spraying hose is fixedly installed on the other side of the output pump, and a spray nozzle is fixedly installed on the other side of the spraying hose.

[0015] By using a delivery pump, the filtered paint is pressurized and delivered to the spray hose and nozzle, ensuring a stable output of paint to achieve uniform spraying.

[0016] This utility model has the following advantages:

[0017] 1. By setting two sets of scraper structures on both sides of the filter screen, and with the cooperation of a rotary motor, drive shaft and bevel gear transmission structure, the output power of the rotary motor is transmitted to the drive shaft through a coupling. The first bevel gear at the lower end of the drive shaft meshes with the second bevel gear at the end of the air guide column, driving the air guide column to rotate around the filter screen axis. This causes the scraper fixed to the air guide column to rotate synchronously and scrape against both sides of the filter screen surface. Through mechanical force, the trapped agglomerated coating is continuously removed. The rotational motion of the motor is converted into the circumferential motion of the scraper, realizing the dynamic cleaning of the agglomerated surface of the filter screen, avoiding the blockage of the filter screen pores due to the accumulation of agglomerated material, and maintaining the flow efficiency of the coating in the discharge pipe.

[0018] 2. The air system, consisting of a hollowed-out scraper, surface spray holes, air intake channels of the air guide column, and an air booster pump, pressurizes outside air and delivers it to the rotary joint through the air intake pipe. The rotary joint maintains a sealed air path as the air guide column rotates. High-pressure air flows into the scraper cavity through the air intake channel inside the air guide column and is finally ejected at high speed from the spray holes. While the scraper mechanically scrapes the filter screen surface, the high-speed airflow impacts and breaks up the filter screen gaps and adhered clumps, forming a synergistic cleaning mechanism of mechanical scraping and airflow impact. This effectively breaks up stubborn clumps and removes deep blockages, improving the filter screen cleaning effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the discharge pipe of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the middle part of the outer tube of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the scraper inside the outer tube of this utility model.

[0024] In the diagram: 1. Storage bin; 2. Discharge pipe; 3. Support plate; 4. Conveying pump; 5. Spraying hose; 6. Spray nozzle; 7. Outer pipe; 8. Filter screen; 9. Protective box; 10. Rotary motor; 11. Drive shaft; 12. First bevel gear; 13. Fixing plate; 14. Air guide column; 15. Second bevel gear; 16. Scraper; 17. Air inlet channel; 18. Spray hole; 19. Air booster output pump; 20. Air inlet pipe; 21. Rotary joint. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 A spraying machine with anti-clogging function includes a storage tank 1, a discharge pipe 2 fixedly installed on one side of the bottom of the storage tank 1, an outer pipe 7 fixedly installed inside the discharge pipe 2, a filter screen 8 fixedly installed in the middle of the inner side of the outer pipe 7, and fixed plates 13 fixedly installed on both sides of the outer pipe 7. An air guide column 14 is rotatably installed in the middle of the inner side of the fixed plate 13. Multiple scrapers 16 are fixedly installed on the side of the air guide column 14 near the outer pipe 7 to provide rotational support for the air guide column 14 and the scrapers 16, so that the scrapers 16 can rotate stably around the axis of the filter screen 8, ensuring the reliability and continuity of mechanical scraping to clean the clumps of the filter screen 8.

[0027] One side of the air guide column 14 passes through the fixed plate 13 and is equipped with a second bevel gear 15. A protective box 9 is fixedly installed at the upper end of the discharge pipe 2, and the bottom of the protective box 9 extends through the interior of the discharge pipe 2. The protective box 9 encloses the transmission components such as the rotary motor 10 and drive shaft 11 at the upper end of the discharge pipe 2, preventing paint splashing from entering the transmission structure, improving the safety of equipment operation and the service life of components. The rotary motor 10 is installed at the upper end of the protective box 9, and the drive shaft 11 is located at the upper inner side of the protective box 9. The output end of the rotary motor 10 is connected to the upper end of the drive shaft 11 through a coupling. A first bevel gear 12 is fixedly installed at the bottom of the drive shaft 11, and the bottom of the first bevel gear 12 meshes with the side of the second bevel gear 15. By setting two sets of scraper blades 16 on both sides of the filter screen 8, and with the cooperation of the rotary motor 10, drive shaft 11 and bevel gear transmission structure, the output power of the rotary motor 10 is transmitted to the drive shaft 11 through the coupling. The first bevel gear 12 at the lower end of the drive shaft 11 meshes with the second bevel gear 15 at the end of the air guide column 14, driving the air guide column 14 to rotate around the axis of the filter screen 8, so that the scraper blades 16 fixed to the air guide column 14 rotate synchronously and scrape against both sides of the filter screen 8. The mechanical force continuously removes the trapped agglomerated coating, and the rotational motion of the motor is converted into the circumferential motion of the scraper blades 16, realizing the dynamic cleaning of the agglomerated surface of the filter screen 8, avoiding the blockage of the pores of the filter screen 8 due to the accumulation of agglomerated material, and maintaining the flow efficiency of the coating in the discharge pipe 2.

[0028] Please see Figures 2-5Multiple scrapers 16 are respectively attached to both sides of the filter screen 8. The second bevel gear 15 is fixedly installed on the outer wall of the air guide column 14. The scraper 16 has a hollow structure inside and multiple spray holes 18 are opened on the surface of the scraper 16. The air guide column 14 has an air intake channel 17 inside, which is connected to the interior of the multiple scrapers 16. High-pressure air flows into the cavity of the scraper 16 through the air intake channel 17 inside the air guide column 14 and is finally sprayed out at high speed from the spray holes 18. While the scraper 16 mechanically scrapes the surface of the filter screen 8, the high-speed airflow impacts and breaks up the gaps and adhering clumps of the filter screen 8, forming a synergistic cleaning mechanism of mechanical scraping and airflow impact, effectively breaking up stubborn clumps and removing deep blockages, and improving the cleaning effect of the filter screen 8.

[0029] An air booster output pump 19 is fixedly installed on the outside of the discharge pipe 2. An air inlet pipe 20 is installed at the output end of the air booster output pump 19. The bottom of the air inlet pipe 20 is inserted through the inside of the discharge pipe 2. A rotary joint 21 is installed at one end of the air inlet pipe 2 inside the discharge pipe 2. The air booster output pump 19 pressurizes the outside air and delivers it to the rotary joint 21 through the air inlet pipe 20. The rotary joint 21 keeps the air passage sealed and connected when the air guide column 14 rotates. The other side of the rotary joint 21 is installed at one end of the air guide column 14 near the second bevel gear 15. The installation of the rotary joint 21 makes the air inlet pipe 20 and the air guide column 14 rotatably connected. When the air guide column 14 rotates to clean the filter screen 8, it ensures that the high-pressure airflow is continuously and stably input, and ensures that the cleaning function is continuous and effective.

[0030] A support plate 3 is fixedly installed at the bottom of the storage tank 1, and a delivery pump 4 is installed at the upper end of the support plate 3. The side of the discharge pipe 2 away from the storage tank 1 is connected to the side of the output pump. A spray hose 5 is fixedly installed on the other side of the output pump, and a nozzle 6 is fixedly installed on the other side of the spray hose 5. The filtered paint is pressurized and delivered from the discharge pipe 2 to the spray hose 5 and the nozzle 6 through the delivery pump 4 installed on the support plate 3 at the bottom of the storage tank 1. The pump pressure ensures that the paint has a stable flow and pressure output, ensuring that the nozzle 6 atomizes and sprays evenly, improving the coating efficiency and coating quality, and avoiding problems such as spraying interruption or uneven thickness caused by insufficient paint delivery power.

[0031] Working principle: In actual use, the paint in the storage tank 1 first flows into the outer pipe 7 through the bottom of the discharge pipe 2. Under the action of gravity, it is first filtered by the filter screen 8. The clumps that are not fully dissolved are intercepted by the filter screen 8, while the liquid paint enters the other side of the discharge pipe 2 through the pores of the filter screen 8. At this time, the delivery pump 4 starts simultaneously, pressurizes and delivers the filtered paint to the spray hose 5, and finally atomizes and sprays it out by the nozzle 6 to complete the spraying operation.

[0032] When a significant decrease in spraying effect is observed, it indicates that the discharge pipe 2 is blocked. At this time, the rotary motor 10 and the air booster output pump 19 can be started. The rotary motor 10 drives the drive shaft 11 to rotate through the coupling. The first bevel gear 12 at the lower end of the drive shaft 11 meshes with the second bevel gear 15 at the end of the air guide column 14, thereby driving the air guide column 14 to rotate around the axis of the filter screen 8. This causes the scrapers 16 fixed on both sides of the air guide column 14 to synchronously adhere to the front and back surfaces of the filter screen 8 and rotate circumferentially, removing the clumps of paint trapped on the filter screen 8 through mechanical scraping.

[0033] At the same time, the air booster output pump 19 pressurizes the outside air and delivers it to the rotary joint 21 through the air intake pipe 20. The rotary joint 21 keeps the air passage sealed and connected during the rotation of the air guide column 14. The high-pressure air flows into the hollow cavity of the scraper 16 along the air intake channel 17 inside the air guide column 14 and is finally ejected at high speed from the spray hole 18 on the surface of the scraper 16, which impacts and breaks up the clumps on the surface and in the gaps of the filter screen 8. This, combined with the mechanical scraping of the scraper 16, forms a dual cleaning effect.

[0034] Throughout the process, the scraper 16 continuously rotates and scrapes the surface of the filter screen 8, while the high-speed airflow simultaneously impacts the gaps in the filter screen 8. This dual mechanism prevents the accumulation of clumps that clog the filter screen 8, ensuring that the paint always passes through the filter screen 8 at a stable flow rate and avoiding problems such as increased conveying pressure and spraying interruption caused by clogging of the filter screen 8.

Claims

1. A spraying machine with anti-clogging function, comprising a storage tank (1), characterized in that: A discharge pipe (2) is fixedly installed on one side of the bottom of the storage box (1). An outer pipe (7) is fixedly installed inside the discharge pipe (2). A filter screen (8) is fixedly installed in the middle of the inner side of the outer pipe (7). Fixing plates (13) are fixedly installed on both sides of the outer pipe (7). An air guide column (14) is rotatably installed in the middle of the inner side of the fixing plate (13). Multiple scrapers (16) are fixedly installed on the side of the air guide column (14) near the outer pipe (7). A second bevel gear (15) is installed on one side of the air guide column (14) through the fixing plate (13). The upper end of the discharge pipe (2) is fixedly installed with a protective box (9). The bottom of the protective box (9) is inserted through the inside of the discharge pipe (2). A rotary motor (10) is installed at the upper end of the protective box (9). A drive shaft (11) is provided at the upper inner side of the protective box (9). The output end of the rotary motor (10) is connected to the upper end of the drive shaft (11) through a coupling. A first bevel gear (12) is fixedly installed at the bottom of the drive shaft (11). The bottom of the first bevel gear (12) meshes with the side of the second bevel gear (15).

2. A spraying machine with anti-clogging function according to claim 1, characterized in that: Multiple scrapers (16) are respectively attached to the two sides of the filter screen (8), and the second bevel gear (15) is fixedly installed on the outer wall of the air guide column (14).

3. A spraying machine with anti-clogging function according to claim 1, characterized in that: The scraper (16) has a hollow structure inside, and multiple injection holes (18) are opened on the surface of the scraper (16). An air intake channel (17) is opened inside the air guide column (14), and the air intake channel (17) is connected to the interior of the multiple scrapers (16).

4. A spraying machine with anti-clogging function according to claim 1, characterized in that: An air booster output pump (19) is fixedly installed on the outside of the discharge pipe (2). An air inlet pipe (20) is installed at the output end of the air booster output pump (19). The bottom of the air inlet pipe (20) is inserted through the inside of the discharge pipe (2).

5. A spraying machine with anti-clogging function according to claim 4, characterized in that: The air inlet pipe (20) is equipped with a rotary joint (21) at one end inside the discharge pipe (2), and the other side of the rotary joint (21) is installed at the end of the air guide column (14) near the second bevel gear (15).

6. A spraying machine with anti-clogging function according to claim 1, characterized in that: A support plate (3) is fixedly installed at the bottom of the storage box (1), and a conveying pump (4) is installed at the upper end of the support plate (3). The side of the discharge pipe (2) away from the storage box (1) is connected to the side of the output pump. A spraying hose (5) is fixedly installed on the other side of the output pump, and a nozzle (6) is fixedly installed on the other side of the spraying hose (5).

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