Automatic metal casting paint spraying device

Abstract

The application discloses a kind of metal casting automatic paint spraying device, including processing box, and fixedly installed in the supporting leg of processing box bottom, the inner wall of processing box is fixedly connected with partition, and the processing box is divided into two paint spraying cavities by partition, and the front side of processing box is equipped with sealing door by hinge installation.The application is by the cooperation of processing box, supporting leg, partition, sealing door, paint spraying pipe, paint spraying nozzle, motor, driving shaft, rest plate, special-shaped mouth, paint tank, connecting plate, paint pump, suction tube, liquid outlet pipe, telescopic link, sealing plate, spring, hydraulic cylinder, driving column, top block, track, sliding block, air suction shell, processing shell, air extractor, air suction pipe, air pipe, cushion block, purification filter element and charging cover, so that metal casting automatic paint spraying device has two paint spraying cavities, which can directly switch another metal casting for paint spraying work after one metal casting is completed, and improve work efficiency.

Description

Technical Field

[0001] This invention relates to the field of metal casting processing technology, specifically to an automatic painting device for metal castings. Background Technology

[0002] Metal castings are shaped metal objects obtained by various casting methods. This involves pouring, injecting, sucking, or other casting methods into a pre-prepared mold, cooling it, and then processing it through grinding and other subsequent methods. Currently, existing automatic painting devices for metal castings generally only have a single painting chamber. This means that after painting, the device needs to remain stationary for a relatively long time to allow the air to be purified before the parts can be removed, which slows down the work efficiency. If workers remove the parts directly after painting, they are likely to inhale a lot of atomized paint, making it inconvenient to use.

[0003] A search revealed an automatic painting device for metal castings, publication number CN207222217U. The device includes a top-opening paint can, with support columns installed at the four corners of the bottom. A vertically mounted cylinder is fixed to the bottom sidewall of the paint can by screws. A movable plate is welded to the piston rod of the cylinder, located on the inner wall of the bottom of the paint can. A horizontally mounted mounting plate is rotatably connected to the top of the movable plate. A first motor is embedded inside the movable plate, and a gear is connected to the output shaft of the first motor. The gear is located on one side of the mounting plate. An array of teeth is installed on the four sidewalls of the mounting plate, meshing with the gear. A fixed ring is slidably connected inside the paint can. An annular air outlet pipe and a spray pipe are installed on the inner wall of the fixed ring, with the air outlet pipe located above the spray pipe. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic painting device for metal castings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic painting device for metal castings, comprising a processing box and a support leg fixedly installed at the bottom of the processing box, a partition fixedly connected to the inner wall of the processing box, the partition dividing the processing box into two painting chambers, a sealing door installed on the front side of the processing box via a hinge, and a painting pipe that can move laterally inside the processing box, with a plurality of painting nozzles installed on the painting pipe.

[0006] Optionally, a motor is installed at the bottom of the processing box, and a drive shaft is fixedly connected to the output shaft of the motor. The top end of the drive shaft extends into the processing box, and a shelf is fixedly connected to the top end of the drive shaft.

[0007] Optionally, the partition plate has irregularly shaped openings.

[0008] Optionally, a paint tank is provided inside the irregular opening, a connecting plate is fixedly connected to the bottom of the paint tank, the connecting plate is fixedly connected to the spray pipe, a paint pump is installed at the bottom of the paint tank, the top of the paint pump is connected to the paint tank through a suction pipe, and the bottom of the paint pump is connected to the spray pipe through a discharge pipe.

[0009] Optionally, a telescopic rod is fixedly connected to the side of the paint box, a sealing plate is provided on the side of the partition, the end of the telescopic rod away from the paint box is fixedly connected to the sealing plate, and a spring is sleeved on the surface of the telescopic rod.

[0010] Optionally, a hydraulic cylinder is fixedly installed on the side of the processing box, a drive column is fixedly connected to the output shaft of the hydraulic cylinder, a top block is fixedly connected to the end of the drive column, and the top block is fixedly connected to the paint box.

[0011] Optionally, a track is fixedly connected to the side of the partition, and a slider is slidably connected to the surface of the track, the slider being fixedly connected to the sealing plate.

[0012] Optionally, an air suction shell is fixedly connected to the top of the inner wall of the processing box, a processing shell is fixedly connected to the top of the processing box, an air extractor is installed at the bottom of the processing shell, the bottom of the air extractor is connected to the air suction shell through an air extraction pipe, and the top of the air extractor is connected to the processing shell through a vent pipe.

[0013] Optionally, a pad is provided inside the processing shell, and a purification filter element is provided inside the processing shell, with the bottom of the purification filter element in contact with the top of the pad.

[0014] Optionally, a feeding cover is provided on the rear side of the top of the processing box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the coordinated operation of a processing box, support legs, partitions, sealing doors, paint spray pipes, paint spray nozzles, motors, drive shafts, shelf plates, irregularly shaped openings, paint tanks, connecting plates, paint pumps, suction pipes, discharge pipes, telescopic rods, sealing plates, springs, hydraulic cylinders, drive columns, top blocks, tracks, sliders, suction shells, processing shells, air extractors, suction pipes, vent pipes, pads, purification filter elements, and feeding covers, enables an automatic metal casting painting device with two painting chambers. The paint spray pipes can be horizontally adjusted to change their working position, allowing for direct switching to another metal casting after painting is completed. A metal casting is being painted. A purification device continuously cleans the atomized paint from the previous painting chamber. Workers can remove the metal casting periodically without inhaling paint, protecting their eyesight and improving efficiency. Furthermore, a sealing plate ensures a tight seal during the horizontal movement of the paint spray pipe, preventing paint from entering another painting chamber. Alternating between metal castings is convenient, and subsequent disassembly of the purification filter is also easy – simple manual replacement ensures quick and easy maintenance.

[0016] This invention ensures the automation level and high efficiency of the entire painting device through the cooperation of the controller, handle one, handle two, and handle three. The handles make it convenient for workers to manually operate and lift items.

[0017] The present invention provides support for the shelf by setting limit posts and ball bearings, preventing the shelf from bending downwards due to the weight of the metal casting, and does not affect the rotation of the shelf. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the front view of the present invention; Figure 2 This is a three-dimensional structural diagram of the invention from a bottom view; Figure 3 This is a three-dimensional sectional view of the front view of the present invention; Figure 4 This is a three-dimensional sectional view of the bottom view of the present invention; Figure 5 This is a three-dimensional structural diagram of the motor and shelf of the present invention; Figure 6 This is a three-dimensional structural diagram of a portion of the present invention from a first-view perspective. Figure 7 This is a two-dimensional structural diagram of a portion of the present invention from a second perspective. Figure 8 This is a three-dimensional structural schematic diagram of the front view of the paint spray pipe and paint box of the present invention; Figure 9This is a three-dimensional structural schematic diagram of the spray pipe and paint box of the present invention, viewed from the bottom. Figure 10 This is a three-dimensional structural diagram of the sealing plate and sealing gasket of the present invention.

[0019] In the diagram: 1. Processing box, 2. Support leg, 3. Partition, 4. Sealing door, 5. Spray pipe, 6. Spray nozzle, 7. Motor, 8. Drive shaft, 9. Shelf, 10. Irregular opening, 11. Paint box, 12. Connecting plate, 13. Paint pump, 15. Liquid outlet pipe, 16. Telescopic rod, 17. Sealing plate, 18. Spring, 19. Hydraulic cylinder, 20. Drive column, 21. Top block, 22. Track, 23. Slider, 24. Suction shell, 25. Processing shell, 26. Evacuator, 27. Evacuation pipe, 28. Vent pipe, 29. Pad, 30. Purification filter element, 31. Feeding cover, 32. Controller, 33. Handle 1, 34. Cover plate, 35. Pressure block, 36. Handle 2, 37. Support block, 38. Handle 3, 39. Sealing ring 1, 40. Limiting post, 41. Ball bearing, 42. Sealing ring 2, 43. Sealing gasket, 44. Disassembly post, 45. Air outlet. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-10 An automatic painting device for metal castings includes a processing box 1 with two doors on the front. A sealing door 4 is installed on the front of the processing box 1 at the position corresponding to the door via a hinge. How the sealing door 4 seals the door is existing technology and will not be described in detail here. Four support legs 2 are fixedly connected to the bottom of the processing box 1, which supports the processing box 1 and provides space for the installation structure at the bottom of the processing box 1. A partition 3 is fixedly connected to the inner wall of the processing box 1, which divides the interior of the processing box 1 into two independent painting chambers. During processing, the partition 3 has an irregularly shaped opening 10. A controller 32 is fixedly installed on the side of the processing box 1. The controller 32 is used to control the working parts of the electric drive equipment, including the PLC controller in the prior art. The type of controller used in the painting device is existing technology, and the detailed model of the controller 32 will not be described here. A handle 33 is fixedly connected to the sealing plate 4.

[0022] Two motors 7 are fixedly installed at the bottom of the processing box 1. The motors 7 are low-speed motors, including TYD low-speed motors. A drive shaft 8 is fixedly connected to the output shaft of the motor. The drive shaft 8 extends upward and enters the interior of the processing box 1. A shelf 9 is fixedly installed on the shelf 9. The shelf 9 is a horizontally set circular plate. Its top is used to hold metal castings. Due to the special nature of painting, the metal castings can be placed in a box first, and then the box is placed on top of the shelf 9. In this way, before the paint on the metal castings is completely dry, the box can be used to remove the metal castings without affecting the paint surface. When the motors 7 work, the rotational force is transmitted to the shelf 9 through the drive shaft 8. This causes the metal castings placed on top of the shelf 9 to rotate. Because the motors 7 are low-speed motors, the rotation speed of the shelf 9 is also very slow, which ensures that the metal castings placed on top of the shelf 9 will not fall off.

[0023] The metal casting is relatively heavy and is placed on top of the shelf 9. Its gravity is easily transmitted to the internal structure of the motor 7 through the drive shaft 8. Therefore, four limiting posts 40 are fixedly connected to the bottom of the shelf 9. Each limiting post 40 has a rotating groove at its bottom, and a ball bearing 41 is rotatably connected in the rotating groove. The bottom of the ball bearing 41 contacts the top of the inner wall of the processing box 1. In this way, multiple limiting posts 40 and ball bearings 41 support the shelf 9. While not affecting the rotation of the shelf 9, they also bear the total weight of the shelf 9 and the metal casting, thus protecting the motor 7 and extending its service life. In order to seal the gap between the drive shaft 8 and the processing box 1, a sealing ring 39 is movably fitted on the surface of the drive shaft 8. The bottom of the sealing ring 39 is fixedly bonded to the bottom of the inner wall of the processing box 1. The sealing ring 39 is made of rubber.

[0024] A hydraulic cylinder 19 providing linear drive is fixedly mounted on the vertical surface outside the machining box 1. The output shaft of the hydraulic cylinder 19 is transmitted into the interior of the machining box 1 and is fixedly connected to a cylindrical drive column 20. When the hydraulic cylinder 19 is controlled by the controller 32 and starts working, it will drive the drive column 20 to move linearly laterally. A top block 21 is fixedly connected to the end of the drive column 20, and a paint tank 11 is fixedly connected to the bottom of the top block 21. A threaded cap is threadedly connected to the top of the paint tank 11. By unscrewing the threaded cap, paint can be injected into the paint tank 11. A feeding cover 31 is provided on the top of the machining box 1. The feeding cover 31 is a sealing cover with a protrusion at its bottom, which inserts into the interior of the machining box 1. [The remaining text appears to be a separate, unrelated section about a connection point and is not directly related to the preceding paragraph.] For sealing, a conventional sealing ring is fitted onto the surface of the protrusion. The weight of the filling cover 31 will compress the sealing ring, thus sealing the surface. A handle 38 is fixedly connected to the top of the filling cover 31. The operator can remove the filling cover 31 by pulling the handle 38 upwards. Then, the hydraulic cylinder 19 works, causing the threaded cover on the top of the paint tank 11 to move to the corresponding opening of the filling cover 31, allowing the filling process to begin. A completely sealed environment is not conducive to the extraction of paint. Therefore, in practical applications, a small hole can be made in the center of the threaded cover to allow air to enter the paint tank 11. A sealing ring 42 is movably fitted onto the surface of the drive column 20. The sealing ring 42 is fixedly connected to the side of the sealing plate 17 and is made of rubber.

[0025] Two connecting plates 12 are fixedly connected to the bottom of the paint tank 11. The bottom of the two connecting plates 12 is fixedly connected by a bent spray pipe 5. Multiple spray nozzles 6 are fixedly installed on the spray pipe 5. A paint pump 13 is fixedly installed at the bottom of the paint tank 11. The bottom of the paint pump 13 is connected to the spray pipe 5 through the outlet pipe 15, and the top is connected to the paint tank 11 through the suction pipe. When the paint pump 13 starts to work under the control of the controller 32, it will draw paint from the paint tank 11 through the suction pipe, and then pass the paint into the spray pipe 5 through the outlet pipe 15. Finally, the paint will be sprayed out through the spray nozzles 6.

[0026] Two telescopic rods 16 are fixedly connected to both the left and right sides of the paint tank 11. Each telescopic rod 16 is a cylindrical hollow pipe that can extend or retract. The ends of the two telescopic rods 16 furthest from the paint tank 11 are fixedly connected by a sealing plate 17. The sealing plate 17 has the same shape as the irregular opening 10, but its size is larger than the diameter of the irregular opening 10. A spring 18 is fitted onto the surface of each telescopic rod 16. One end of the spring 18 is fixedly connected to the paint tank 11, and the other end is fixedly connected to the sealing plate 17. There are two sealing plates 17; one is located on the surface of the drive column 20, and the two are movably connected. A sealing gasket 43, made of rubber, is fixedly connected to the side of the sealing plate 17 facing the partition 3. Figure 3From a perspective, when the output shaft of the hydraulic cylinder 19 extends, the paint tank 11 moves to the right, and the sealing gasket 43 on the left sealing plate 17 of the partition 3 adheres to the partition 3. Then the sealing gasket 43 is squeezed, and the two telescopic rods 16 and the spring 18 extend. Conversely, when the output shaft of the hydraulic cylinder 19 shortens, the sealing gasket 43 on the right sealing plate 17 of the partition 3 adheres to the partition 3. In this technical solution, the initial distance between the sealing plate 17 and the partition 3 is a distance of one. This distance is insufficient to allow the paint spray pipe 5 to move to the vertical center line of the drive shaft 8. The purpose of this setting is to ensure that each time the paint spray pipe 5 is adjusted to move to the corresponding vertical center line of the drive shaft 8, there is always a sealing gasket 43 tightly adhering to the side of the partition 3. In other words, there will always be two telescopic rods 16 and springs 18 that extend.

[0027] Both sides of the partition 3 are fixedly connected to rails 22, and sliders 23 are slidably connected to the surface of the rails 22. The sliders 23 are fixedly connected to the sealing plate 17. By using the rails 22 and sliders 23, the weight of the sealing plate 17 and the paint box 11 and other structures is supported without affecting the linear movement of the structure. The output shaft of the hydraulic cylinder 19 is also protected.

[0028] During painting, the paint spray tube 5 is adjusted to the left and right, and then the sealing plate 17 and the sealing gasket 43 are used to seal the irregular opening 10, so that there will be no gas exchange between the two paint spray chambers.

[0029] Two support blocks 37 are fixedly connected to the top of the processing box 1. The tops of the two support blocks 37 are connected through a processing shell 25 with a top opening. A cover plate 34 is fitted onto the top of the processing shell 25. The bottom of the cover plate 34 is machined with a downward-protruding protrusion, the size of which matches the diameter of the processing shell 25. This ensures that the cover plate 34 is stable when fitted onto the top of the processing box 1. The cover plate 34 is made of a heavy metal and has a handle 36 fixedly connected to its top. By pulling the handle 36 upwards, the operator can remove the cover plate 34 from the top of the processing shell 25. Two pads 29 are fixedly connected to the inner wall of the processing shell 25. A purification filter element 30 is placed on the top of the two pads 29. The purification filter element 30 has... The filter element is a composite rigid filter element specifically designed for paint booths. The pad 29 supports the purification filter element 30, preventing it from falling downwards. A disassembly post 44 is fixedly connected to the top of the purification filter element 30. After the operator removes the cover plate 34, the purification filter element 30 can be pulled upwards using the disassembly post 44 to remove it from the processing housing 25. An air outlet 45 is machined on the right side of the processing housing 25, above the purification filter element 30. The air outlet 45 allows the air purified by the purification filter element 30 to be discharged from the processing housing 25. Two pressure blocks 35 are fixedly connected to the bottom of the cover plate 34, pressing down on the top of the purification filter element 30 to prevent it from moving upwards.

[0030] A vacuum pump 26 is fixedly installed at the bottom of the processing shell 25. The top of the vacuum pump 26 is connected to the processing shell 25 through a vent pipe 28. A vacuum pipe 27 is fixedly connected to the bottom of the vacuum pump 26. The bottom of the vacuum pipe 27 extends downward and enters the processing box 1, where it is fixedly connected to a suction shell 24. The top of the suction shell 24 is fixedly connected to the top of the inner wall of the processing box 1. The top of the partition 3 has a notch formed at the position corresponding to the suction shell 24. The seam edges between the suction shell 24 and the processing box 1, and between the suction shell 24 and the partition 3, can be fixed by welding to prevent gaps. The bottom of the suction shell 24 has multiple round openings to allow gas to enter the suction shell 24.

[0031] In use, the operator pulls the sealing door 4 by handle 33 to open it. After opening the sealing door 4, the metal casting is placed in a box, and then the box is placed on top of the shelf 9. The hydraulic cylinder 19 operates, the output shaft shortens, and the sealing gasket 43 on the right side of the partition 3 adheres to the partition 3. The paint spray pipe 5 also moves out from the irregular opening 10. The paint pump 13 operates, and the paint is sprayed from the paint nozzle 6. The motor 7 operates, which drives the metal casting to rotate. This is how the metal casting is painted. After one metal casting is painted, the hydraulic cylinder 19 operates, the output shaft extends, and the sealing gasket 43 on the left side of the partition 3 adheres to the partition 3. The paint spray pipe 5 also switches its working position, so that another metal casting can be painted. During the painting process, the air extractor 26 operates continuously, so the air inside the painting chamber corresponding to the finished metal casting is continuously purified. After a short time, the operator can take out the metal casting and then replace it with another metal casting that needs to be painted.

[0032] 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. An automatic painting device for metal castings, comprising a processing box (1) and a support leg (2) fixedly installed at the bottom of the processing box (1), characterized in that: A partition (3) is fixedly connected to the inner wall of the processing box (1). The partition (3) divides the processing box (1) into two spraying chambers. A sealing door (4) is installed on the front side of the processing box (1) via a hinge. A spraying pipe (5) that can move laterally is provided inside the processing box (1). Several spraying nozzles (6) are installed on the spraying pipe (5).

2. The automatic painting device for metal castings according to claim 1, characterized in that: A motor (7) is installed at the bottom of the processing box (1). A drive shaft (8) is fixedly connected to the output shaft of the motor (7). The top end of the drive shaft (8) extends into the processing box (1). A shelf (9) is fixedly connected to the top end of the drive shaft (8).

3. The automatic painting device for metal castings according to claim 2, characterized in that: The partition (3) has an irregularly shaped opening (10).

4. The automatic painting device for metal castings according to claim 3, characterized in that: A paint tank (11) is provided inside the irregular opening (10). A connecting plate (12) is fixedly connected to the bottom of the paint tank (11). The connecting plate (12) is fixedly connected to the spray pipe (5). A paint pump (13) is installed at the bottom of the paint tank (11). The top of the paint pump (13) is connected to the paint tank (11) through a suction pipe. The bottom of the paint pump (13) is connected to the spray pipe (5) through a discharge pipe (15).

5. The automatic painting device for metal castings according to claim 4, characterized in that: A telescopic rod (16) is fixedly connected to the side of the paint box (11), and a sealing plate (17) is provided on the side of the partition (3). The end of the telescopic rod (16) away from the paint box (11) is fixedly connected to the sealing plate (17), and a spring (18) is sleeved on the surface of the telescopic rod (16).

6. The automatic painting device for metal castings according to claim 5, characterized in that: A hydraulic cylinder (19) is fixedly installed on the side of the processing box (1). A drive column (20) is fixedly connected to the output shaft of the hydraulic cylinder (19). A top block (21) is fixedly connected to the end of the drive column (20). The top block (21) is fixedly connected to the paint box (11).

7. The automatic painting device for metal castings according to claim 6, characterized in that: The side of the partition (3) is fixedly connected to a track (22), and a slider (23) is slidably connected to the surface of the track (22). The slider (23) is fixedly connected to the sealing plate (17).

8. The automatic painting device for metal castings according to claim 7, characterized in that: A suction shell (24) is fixedly connected to the top of the inner wall of the processing box (1), and a processing shell (25) is fixedly connected to the top of the processing box (1). A vacuum pump (26) is installed at the bottom of the processing shell (25). The bottom of the vacuum pump (26) is connected to the suction shell (24) through a vacuum pipe (27), and the top of the vacuum pump (26) is connected to the processing shell (25) through a ventilation pipe (28).

9. The automatic painting device for metal castings according to claim 8, characterized in that: A pad (29) is provided inside the processing shell (25), and a purification filter element (30) is provided inside the processing shell (25). The bottom of the purification filter element (30) is in contact with the top of the pad (29).

10. The automatic painting device for metal castings according to claim 9, characterized in that: The processing box (1) is provided with a feeding cover (31) on the rear side of the top.

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