A spray painting device for air compressor housing with a flip structure

Abstract

The present invention discloses an air compressor shell painting device with a flip structure, which relates to the technical field of air compressor shell painting tools, including a cabinet and a boost filter pump arranged on the top of the cabinet, an intelligent mechanical arm is installed on the moving seat at the bottom of the linear motor, and a spray gun is installed at the swinging end at the bottom of the intelligent mechanical arm; a flip frame is horizontally arranged between the lower parts of two vertical plates, a positioning mechanism is installed on the fixed seat, and a shielding mechanism is installed on the flip frame; the present invention facilitates continuous painting operation on the air compressor shell to be sprayed through the cooperation of the flip frame, the shielding mechanism and the positioning mechanism, avoids the situation that the paint surface of the air compressor shell in the state of draining paint liquid is scratched; and improves the continuity and efficiency of the painting operation on the air compressor shell; effectively improves the various spraying angle requirements of the intelligent mechanical arm operating the spray gun to spray the air compressor shell.

Description

Technical Field

[0001] The invention relates to the technical field of air compressor shell painting tools, in particular to an air compressor shell painting device with a flip structure. Background Art

[0002] The air compressor housing painting device is a device specially used for painting the air compressor housing. It combines components such as a fixed base plate, a connecting rod, a working platform, a paint spraying box, a control panel and a box door, and can realize paint recovery and recycling during the painting process, thereby improving work efficiency. The design of the existing air compressor housing painting device is aimed at improving the efficiency and effect of the painting operation. Generally, the stable structure of the fixed base plate and the connecting rod is used to ensure the stability and reliability of the paint spraying box on the working platform. A paint injection port is provided at the top of the paint spraying box for easy addition of paint, and the control panel is used to operate the entire painting process. The design of the box door is convenient for operation and maintenance, while ensuring safety during the painting process.

[0003] However, when the paint spraying device in the above-mentioned prior art performs preliminary primer spraying operation on the air compressor casing, it can generally only perform a single paint spraying operation on the air compressor casing to be painted, and it is not convenient to automatically spray the primer around the air compressor casing. At the same time, it is necessary to disassemble the air compressor casing that has completed the painting operation and then drain the paint liquid, or choose to wait for the paint liquid on the surface of the air compressor casing to dry after the painting is completed, and then disassemble the air compressor casing that has completed the primer spraying, and then install another air compressor casing that has not been sprayed with primer. As a result, the above two painting operation modes have the problem of poor continuity in the primer spraying operation for the air compressor casing, and there is a waiting time for the air compressor casing to drain the paint liquid, which affects the work efficiency of the primer spraying for the air compressor casing; therefore, the above problems need to be solved and processed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an air compressor shell painting device with a flip structure.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an air compressor casing painting device with a flipping structure, comprising a cabinet and a booster filter pump arranged on the top of the cabinet, a base is installed on the inner bottom surface of the cabinet, vertical plates are arranged on both sides of the top of the base, a linear motor is installed between the tops of the two vertical plates, an intelligent mechanical arm is installed on the moving seat at the bottom of the linear motor, and a spray gun for painting operation is installed at the swinging end at the bottom of the intelligent mechanical arm; a flipping frame is horizontally arranged between the lower parts of the two vertical plates, both ends of the flipping frame are fixedly connected with a rotating shaft whose outer end is rotatably connected to the vertical plate, and a reduction motor for flipping operation of the flipping frame is arranged on the outer side of one of the vertical plates; a fixed seat is installed in the middle of the upper and lower end surfaces of the flipping frame, a positioning mechanism for fixing the air compressor is installed on the fixed seat, and a shielding mechanism for preventing the paint liquid from being sprayed and dispersed is installed on the flipping frame.

[0006] Preferably, U-shaped lifting openings are vertically opened at the front and rear ends of the top of the flip frame, transmission openings are opened in the middle of both ends of the flip frame, and a transmission component for driving the shielding mechanism is arranged inside the transmission opening at one end of the flip frame, and the flip frame is a Japanese-shaped frame structure.

[0007] Preferably, the shielding mechanism includes a protective plate vertically movably arranged inside the lifting opening, a two-way screw laterally rotatably arranged inside the front and rear end frame openings of the flip frame, a transmission gear rotatably arranged inside the front and rear end of the transmission opening, mounting grooves provided at both ends of the protective plate and a rack plate fixed inside the mounting groove, a brush sweeping assembly for cleaning the middle frame of the flip frame is installed between the two two-way screws, the front and rear end of the transmission opening are provided with through openings connected to the lifting opening, the end of the two-way screw movably penetrates into the transmission opening and is coaxially fixed with the transmission gear, the transmission gear meshes with the rack plate through the through opening for transmission, and the teeth of the rack plate do not extend out of the mounting groove, and the outer side surface of the protective plate is slidably fitted with the inner wall of the lifting opening.

[0008] Preferably, the transmission assembly includes a driving gear rotatably arranged in one of the transmission ports, a driven gear rotatably meshed with the front and rear ends of the driving gear, and a driving cavity opened in the middle frame of the flip frame, a self-locking motor is laterally installed at one end of the driving cavity, the output shaft of the self-locking motor is coaxially fixed with the gear shaft of the driving gear, the driven gear is meshed with the transmission gear for transmission, and protective cover plates are installed at the upper and lower ends of the transmission port.

[0009] Preferably, the brush sweeping assembly includes a threaded seat rotatably arranged at both ends of a bidirectional lead screw, and scraping plates are longitudinally arranged on both sides of the upper and lower end surfaces of the flip frame, and the ends of the scraping plates are connected and fixed to the threaded seats. The scraping plate is a folding plate-like structure with a protruding middle part, and a cleaning brush is installed in the middle of the scraping surface of the scraping plate.

[0010] Preferably, the positioning mechanism includes a turntable rotatably arranged on the inner ring of the fixed seat, a supporting plate installed in the groove at the outer end of the turntable and a plurality of positioning screws equidistantly installed on the outer end surface of the supporting plate, the connecting end of the positioning screw is sleeved with a pair of locking nuts for abutting and fixing with the supporting plate, the outer end of the positioning screw is sleeved with a positioning plate, the suspended end of the positioning plate is provided with a positioning hole, and the positioning screws at the upper and lower ends of the positioning plate are screwed together with supporting nuts for adjusting the position of the positioning plate.

[0011] Preferably, a plurality of elliptical positioning openings are equidistantly formed on the support plate, and the connecting ends of the positioning screws are installed in the positioning openings via a pair of locking nuts.

[0012] Preferably, a first gear is rotatably provided in the middle of the fixed seat, an inner gear ring is fixedly provided on the inner ring wall of the turntable connecting end, and a second gear is also installed inside the fixed seat between the inner gear ring and the first gear, and one side of the second gear is meshed with the first gear for transmission, and the other side is meshed with the inner gear ring for transmission.

[0013] Preferably, a transmission shaft is vertically rotatably provided in the middle of the driving cavity, the end of the transmission shaft movably passes through the interior of the fixed seat and is coaxially fixed with the first gear, a servo motor is installed in the driving cavity on one side of the transmission shaft, and a driving bevel gear is sleeved on the output shaft of the servo motor, and the transmission shaft is located in the driving cavity and has a driven bevel gear that meshes with the driving bevel gear.

[0014] Preferably, a liquid collecting tank for paint liquid recovery is provided on the top of the base, and the liquid collecting tank is funnel-shaped, a filter mesh plate is installed on the top of the liquid collecting tank, a liquid return pipe connected to the liquid collecting tank is installed at the bottom of the cabinet, the other end of the liquid return pipe is fixedly connected to the liquid inlet end of the booster filter pump, the liquid outlet end of the booster filter pump is installed with a liquid outlet pipe running through the inside of the cabinet, and a connecting hose is installed between the bottom end of the liquid outlet pipe and the liquid inlet end of the spray gun.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention not only facilitates the continuous painting operation of the air compressor casing to be painted through the cooperation of the flip frame with the shielding mechanism and the positioning mechanism, but also can use the process of the previous air compressor casing to drain the paint to carry out the painting operation on the next air compressor casing, thereby avoiding the situation where the paint surface of the air compressor casing in the state of draining the paint is scratched when installing the next air compressor casing; and improves the continuity and efficiency of the painting operation on the air compressor casing; after the air compressor casing is turned downward by the flip frame, the excess paint liquid on the surface of the air compressor casing can, under the action of gravity, make part of the paint liquid collected in the turntable drip again on the surface of the air compressor casing, thereby facilitating the paint touch-up operation on the bottom and the joint of the air compressor casing; through the rotation of the turntable, it is convenient to drive the air compressor casing fixed on the support plate to perform horizontal rotation operation, effectively improving the various spraying angle requirements of the intelligent robotic arm operating the spray gun for the painting operation of the air compressor casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall first-view structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the first-view structure of the interior of the cabinet of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the cabinet interior of the present invention from a second viewing angle;

[0021] Figure 5 It is a schematic diagram of the base, protective plate and vertical plate structure of the present invention;

[0022] Figure 6 It is a three-dimensional schematic diagram of the bottom plate structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the local structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the flip frame and the protective plate of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the flip frame and the positioning mechanism of the present invention;

[0026] Fig.10 It is a schematic diagram of the shielding mechanism and the positioning mechanism of the present invention;

[0027] Fig.11 It is a schematic diagram of the structure of the shielding mechanism of the present invention;

[0028] Fig.12 It is a schematic diagram of the partial structure of the shielding mechanism of the present invention from a first viewing angle;

[0029] Fig.13 It is a schematic diagram of the local structure of the shielding mechanism of the present invention from a second viewing angle;

[0030] Fig.14 It is a schematic diagram of the structure of the transmission assembly and the brush sweeping assembly of the present invention;

[0031] Fig.15 It is a schematic diagram of the structure of two positioning mechanisms of the present invention;

[0032] Fig.16 It is a schematic diagram of the supporting plate and the rotating disk structure of the present invention;

[0033] Fig.17 It is a schematic diagram of the transmission state structure of the servo motor and the transmission shaft of the present invention;

[0034] Fig.18 It is a schematic diagram of the meshing state of a gear, an internal gear ring and a second gear of the present invention.

[0035] Serial numbers in the figure: 1. cabinet; 2. booster filter pump; 3. base; 4. vertical plate; 5. flip frame; 6. fixed seat; 7. turntable; 8. support plate; 9. linear motor; 10. intelligent robotic arm; 11. spray gun; 12. filter screen; 13. return pipe; 14. connecting hose; 15. protective plate; 16. bidirectional screw; 17. transmission gear; 18. rack plate; 19. self-locking motor; 20. driving gear; 21. driven gear; 22. threaded seat; 23. scraper plate; 24. cleaning brush; 25. first gear; 26. inner gear ring; 27. second gear; 28. servo motor; 29. ​​positioning screw; 30. positioning plate; 31. reduction motor. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Example 1: See Figures 1 to 18, a painting device for an air compressor shell with a flip structure, comprising a cabinet 1 and a boost filter pump 2 arranged on the top of the cabinet 1, two cabinet doors with transparent tempered glass are installed on both sides of the opening of the front end surface of the cabinet 1 through hinges, and the transparent cabinet doors are convenient for observing the operation of the air compressor shell being painted inside, a base 3 is installed on the inner bottom surface of the cabinet 1, and vertical plates 4 are arranged on both sides of the top of the base 3, a linear motor 9 is installed between the tops of the two vertical plates 4, an intelligent mechanical arm 10 is installed on the moving seat at the bottom of the linear motor 9, and a spray gun 11 for painting operation is installed at the swinging end of the bottom of the intelligent mechanical arm 10; a flip frame 5 is horizontally arranged between the lower parts of the two vertical plates 4, and both ends of the flip frame 5 are fixedly connected with a rotating shaft whose outer end is rotatably connected to the vertical plate 4, and a reduction motor 31 for flipping operation of the flip frame 5 is arranged on the outer side of one of the vertical plates 4; a fixed seat 6 is installed in the middle of the upper and lower end surfaces of the flip frame 5, and a positioning mechanism for fixing the air compressor is installed on the fixed seat 6, and a positioning mechanism for preventing the paint liquid from spraying is installed on the flip frame 5 A shielding mechanism for coating dispersion; a liquid collecting tank for paint liquid recovery is provided on the top of the base 3, and the liquid collecting tank is funnel-shaped, a filter screen plate 12 is installed on the top of the liquid collecting tank, a liquid return pipe 13 connected to the liquid collecting tank is installed at the bottom of the cabinet 1, the other end of the liquid return pipe 13 is fixedly connected to the liquid inlet end of the boost filter pump 2, the liquid outlet end of the boost filter pump 2 is provided with a liquid outlet pipe penetrating into the cabinet 1, a connecting hose 14 is installed between the bottom end of the liquid outlet pipe and the liquid inlet end of the spray gun 11, and a spring tube is preferably used for the connecting hose 14; through the cooperation of the flip frame 5 with the shielding mechanism and the positioning mechanism, it is not only convenient to realize the continuous painting operation of the air compressor housing to be sprayed, but also the use of the previous air compressor housing in the process of draining the paint liquid to spray the next air compressor housing, so as to avoid the paint scratching of the surface of the air compressor housing in the state of draining the paint liquid when installing the next air compressor housing; and improve the continuity and efficiency of the painting operation for the air compressor housing.

[0038] In the present invention, U-shaped lifting openings are vertically opened at the front and rear ends of the top of the flip frame 5, transmission openings are opened in the middle of both ends of the flip frame 5, and a transmission component for driving the shielding mechanism is arranged inside the transmission opening at one end of the flip frame 5, and the flip frame 5 is a Japanese-shaped frame structure; the shielding mechanism includes a protective plate 15 vertically movably arranged inside the lifting opening, a bidirectional lead screw 16 rotatably arranged inside the front and rear end frame openings of the flip frame 5, a transmission gear 17 rotatably arranged inside the front and rear end of the transmission opening, mounting grooves opened at both ends of the protective plate 15 and a rack plate 18 fixed inside the mounting groove, and a brush for cleaning the middle frame of the flip frame 5 is installed between the two bidirectional lead screws 16. The sweeping assembly, the front and rear ends of the transmission port are provided with through-holes connected to the lifting port, the end of the bidirectional lead screw 16 movably passes through the interior of the transmission port and is coaxially fixed with the transmission gear 17, the transmission gear 17 is meshed with the rack plate 18 through the through-hole for transmission, and the teeth of the rack plate 18 do not extend out of the mounting groove, the outer side surface of the protective plate 15 is slidably fitted with the inner wall of the lifting port; after the air compressor casing is turned downward by the turning frame 5, the excess paint liquid on the surface of the air compressor casing can, under the action of gravity, make part of the paint liquid collected in the turntable 7 drip again on the surface of the air compressor casing, so that the bottom of the air compressor casing and the joint can be repainted.

[0039] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figures 10 to 14 As shown, the transmission assembly includes a driving gear 20 rotatably arranged in one of the transmission ports, a driven gear 21 rotatably meshed with the front and rear ends of the driving gear 20, and a driving chamber opened in the middle frame of the flip frame 5, a self-locking motor 19 is horizontally installed at one end of the driving chamber, the output shaft of the self-locking motor 19 is coaxially fixedly connected with the gear shaft of the driving gear 20, the driven gear 21 is meshed with the transmission gear 17 for transmission, and protective cover plates are installed at the upper and lower ends of the transmission port; the brushing assembly includes a threaded seat 22 rotatably arranged at both ends of the bidirectional lead screw 16, and scraping plates 23 are longitudinally arranged on both sides of the upper and lower end surfaces of the flip frame 5, and the ends of the scraping plates 23 are connected and fixed to the threaded seat 22, the scraping plates 23 are folded plate-shaped structures with a middle portion convex outward, and a cleaning brush 24 is installed in the middle of the scraping surface of the scraping plates 23.

[0040] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figures 15 to 18As shown, the positioning mechanism includes a turntable 7 rotatably arranged on the inner ring of the fixed seat 6, a supporting plate 8 installed in the groove at the outer end of the turntable 7 and a plurality of positioning screws 29 equidistantly installed on the outer end surface of the supporting plate 8, the connecting end of the positioning screw 29 is sleeved with a pair of locking nuts for abutting and fixing with the supporting plate 8, the outer end of the positioning screw 29 is sleeved with a positioning plate 30, the suspended end of the positioning plate 30 is provided with a positioning hole, and the positioning screws 29 at the upper and lower ends of the positioning plate 30 are screwed and connected with supporting nuts for adjusting the position of the positioning plate 30; a plurality of elliptical positioning openings are equidistantly provided on the supporting plate 8, and the connecting end of the positioning screw 29 is installed in the positioning opening through a pair of locking nuts; a first gear 25 is rotatably provided in the middle part of the fixed seat 6, an inner gear ring 26 is fixedly provided on the inner ring wall of the connecting end of the turntable 7, and the inner ring of the fixed seat 6 between the inner gear ring 26 and the first gear 25 A second gear 27 is also installed in the part, one side of the second gear 27 is meshed with the first gear 25 for transmission, and the other side is meshed with the inner gear ring 26 for transmission; a transmission shaft is provided in the middle part of the driving chamber for vertical rotation, and the end of the transmission shaft is movably inserted into the interior of the fixed seat 6 and is coaxially fixed with the first gear 25, and a servo motor 28 is installed in the driving chamber on one side of the transmission shaft, and an active bevel gear is sleeved on the output shaft of the servo motor 28, and the driven bevel gear of the shaft sleeve structure located in the driving chamber is meshed with the active bevel gear; through the cooperation of the servo motor 28 with the first gear 25 and the inner gear ring 26 and the second gear 27, the turntable 7 is driven to rotate, so as to facilitate the horizontal rotation operation of the air compressor housing fixed on the supporting plate 8, and effectively improve the various spraying angle requirements of the intelligent robotic arm 10 operating the spray gun 11 for the air compressor housing to spray paint.

[0041] Working principle: In this embodiment, the present invention also proposes a method for using an air compressor housing painting device with a flip structure, comprising the following steps:

[0042] Step 1: First, each electrical appliance in the device is electrically connected to an external control device through a wire, then the cabinet door at the front end of the cabinet 1 is opened to place the air compressor housing to be sprayed on the support plate 8, and the position of the positioning screw 29 on the support plate 8 is adjusted according to the air compressor housing. Then, the air compressor housing placed on the support plate 8 is limited and fixed by the cooperation of the bolt and the positioning plate 30, and then the boost filter pump 2 is connected to the external equipment for supplying paint liquid. At this time, the two protective plates 15 on the flip frame 5 are in the lowest position;

[0043] Step 2, then start the self-locking motor 19 to drive the driving gear 20 to rotate forward, and through the meshing rotation of the driving gear 20, the driven gear 21 and the transmission gear 17, the protection plate 15 can be driven to rise under the cooperation of the reversed transmission gear 17 and the rack plate 18, so as to play a shielding role before the air compressor shell is sprayed with paint, so as to avoid the paint splashing on the transparent cabinet door and affecting the operator's observation of the spraying of the air compressor shell. At the same time, after the air compressor shell is turned down after the paint spraying is completed, the protection plate 15 is also in a state of shielding the air compressor shell, so as to avoid the paint scratching on the surface of the air compressor shell in the state of draining the paint when installing the next air compressor shell; to avoid installing the next one to be sprayed, stop the self-locking motor 19 after the protection plate 15 is raised, and then start the boost filter pump 2 to extract the paint liquid, and then let the paint liquid enter the spray gun 11 through the connecting hose 14;

[0044] Step three, then start the linear motor 9 to drive the intelligent mechanical arm 10 to move horizontally, so that the intelligent mechanical arm 10 can operate the spray gun 11 to spray from one side of the air compressor housing to the other side when spraying the paint liquid. When the intelligent mechanical arm 10 is started to control the spray gun 11 and spray the air compressor housing, in order to avoid the situation where there is no spraying in the seam or groove of the air compressor housing, the servo motor 28 is driven to rotate the active bevel gear, and the meshing of the active bevel gear and the driven bevel gear drives the transmission shaft to rotate. The rotating transmission shaft drives the first gear 25 to rotate, and the meshing of the first gear 25 and the second gear 27 is decelerated, and the turntable 7 fixed to the inner gear ring 26 is driven to rotate slowly. When the turntable 7 rotates, it can drive the air compressor housing fixed on the supporting plate 8 to rotate horizontally, which can improve the various spraying angle requirements of the intelligent mechanical arm 10 operating the spray gun 11 for the air compressor housing to spray paint;

[0045] Step 4, after the spraying operation is completed for the air compressor housing, the reduction motor 31 is started to drive the flip frame 5 to perform a flipping operation, and the air compressor housing that has been sprayed is flipped downward to control the paint liquid. When the air compressor housing is flipped downward, the excess paint liquid on the surface of the air compressor housing can be caused by gravity to make part of the paint liquid collected in the turntable 7 drip back onto the surface of the air compressor housing, and the excess paint liquid will drip into the liquid collecting tank, and the collected paint liquid can be filtered by the filter screen plate 12 installed on the liquid collecting tank;

[0046] Step 5, in the process of controlling the paint liquid to dry for the air compressor housing that is turned downward, another air compressor housing to be sprayed can be installed on the positioning mechanism that is now facing upward, and then the self-locking motor 19 is started to drive the driving gear 20 to reverse, and the driving gear 20 is meshed and rotated with the driven gear 21 and the transmission gear 17, and the protection plate 15 can be driven to rise and play a shielding role under the cooperation of the transmission gear 17 and the rack plate 18; then repeat the above-mentioned painting operation for the air compressor housing; and when the transmission gear 17 rotates, it can drive the bidirectional lead screw 16 to rotate, and the forward and reverse bidirectional lead screw 16 can drive the brush sweeping assembly to clean the middle frame of the flip frame 5 that is easy to stick to the paint liquid;

[0047] Step six, after completing the painting operation on another air compressor casing, start the reduction motor 31 again to drive the flip frame 5 to flip and reset, and then remove the previous air compressor casing that has completed the control of paint liquid from the support plate 8, and then install the next air compressor casing to be painted on the empty support plate 8 for painting, which effectively improves the continuity and efficiency of the painting operation on the air compressor casing.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air compressor housing painting device with a flip structure, comprising a cabinet (1) and a booster filter pump (2) arranged on the top of the cabinet (1), characterized in that: A base (3) is installed on the inner bottom surface of the cabinet (1), vertical plates (4) are provided on both sides of the top of the base (3), a linear motor (9) is installed between the tops of the two vertical plates (4), an intelligent mechanical arm (10) is installed on the moving seat at the bottom of the linear motor (9), and a spray gun (11) for spraying paint is installed at the swing end at the bottom of the intelligent mechanical arm (10); A flip frame (5) is disposed transversely between the lower portions of the two vertical plates (4), and both ends of the flip frame (5) are fixedly connected to a rotating shaft whose outer end is rotatably connected to the vertical plates (4), and a reduction motor (31) for flipping the flip frame (5) is disposed on the outer side of one of the vertical plates (4); A fixing seat (6) is installed in the middle of the upper and lower end surfaces of the flip frame (5), a positioning mechanism for fixing the air compressor is installed on the fixing seat (6), and a shielding mechanism for preventing the paint liquid from being dispersed during spraying is installed on the flip frame (5); The top front and rear ends of the flip frame (5) are vertically provided with U-shaped lifting openings, the middle parts of both ends of the flip frame (5) are provided with transmission openings, and a transmission assembly for driving the shielding mechanism is provided inside the transmission opening at one end of the flip frame (5), and the flip frame (5) is a Japanese-shaped frame structure; The shielding mechanism comprises a protective plate (15) vertically movable inside the lifting opening, a bidirectional lead screw (16) transversely rotatably arranged inside the front and rear end frame openings of the flip frame (5), a transmission gear (17) rotatably arranged inside the front and rear end of the transmission opening, mounting grooves provided at both ends of the protective plate (15) and a rack plate (18) fixed inside the mounting grooves, a brush sweeping assembly for cleaning the middle frame body of the flip frame (5) is installed between the two bidirectional lead screws (16), the front and rear ends of the transmission opening are provided with through openings communicating with the lifting opening, the end of the bidirectional lead screw (16) movably penetrates into the transmission opening and is coaxially fixedly connected with the transmission gear (17), the transmission gear (17) meshes with the rack plate (18) through the through opening for transmission, and the teeth of the rack plate (18) do not extend out of the mounting groove, and the outer side surface of the protective plate (15) is slidably fitted with the inner wall of the lifting opening; The brushing assembly comprises a threaded seat (22) rotatably arranged at both ends of a bidirectional lead screw (16); both sides of the upper and lower end surfaces of the flip frame (5) are longitudinally provided with a scraping plate (23); the end of the scraping plate (23) is connected and fixed to the threaded seat (22); the scraping plate (23) is a folding plate-shaped structure with a middle portion protruding outwards; and a cleaning brush (24) is installed in the middle of the scraping surface of the scraping plate (23); The positioning mechanism comprises a turntable (7) rotatably arranged on the inner ring of a fixed seat (6), a supporting plate (8) installed in a notch at the outer end of the turntable (7), and a plurality of positioning screws (29) equidistantly installed on the outer end surface of the supporting plate (8), the connecting ends of the positioning screws (29) being sleeved with a pair of locking nuts for abutting and fixing with the supporting plate (8), the outer ends of the positioning screws (29) being sleeved with a positioning plate (30), the suspended ends of the positioning plate (30) being provided with positioning holes, and the positioning screws (29) at the upper and lower ends of the positioning plate (30) are both screwed and connected with supporting nuts for adjusting the position of the positioning plate (30).

2. The air compressor housing painting device with a flip structure according to claim 1, characterized in that: The transmission assembly comprises a driving gear (20) rotatably arranged in one of the transmission ports, a driven gear (21) rotatably meshed with the front and rear ends of the driving gear (20), and a driving cavity provided in a middle frame body of the flip frame (5), a self-locking motor (19) being transversely mounted at one end of the driving cavity, an output shaft of the self-locking motor (19) being coaxially fixedly connected to a gear shaft of the driving gear (20), the driven gear (21) meshingly transmitting with a transmission gear (17), and protective cover plates being mounted at both the upper and lower ends of the transmission port.

3. The air compressor housing painting device with a flip structure according to claim 2, characterized in that: The support plate (8) is provided with a plurality of elliptical positioning openings at equal intervals, and the connecting ends of the positioning screws (29) are mounted in the positioning openings via a pair of locking nuts.

4. The air compressor housing painting device with a flip structure according to claim 3, characterized in that: A first gear (25) is rotatably provided in the middle of the fixed seat (6), an inner gear ring (26) is fixedly provided on the inner ring wall of the connecting end of the rotating disk (7), and a second gear (27) is also installed inside the fixed seat (6) between the inner gear ring (26) and the first gear (25), one side of the second gear (27) is meshed with the first gear (25) for transmission, and the other side is meshed with the inner gear ring (26) for transmission.

5. The air compressor housing painting device with a flip structure according to claim 2, characterized in that: A transmission shaft is vertically rotatably arranged in the middle of the driving cavity, and an end of the transmission shaft movably penetrates into the interior of the fixed seat (6) and is coaxially fixedly connected to the first gear (25). A servo motor (28) is installed in the driving cavity on one side of the transmission shaft, and an active bevel gear is sleeved on the output shaft of the servo motor (28). The transmission shaft is located in the driving cavity and has a driven bevel gear that meshes with the active bevel gear.

6. The air compressor housing painting device with a flip structure according to claim 2, characterized in that: A liquid collecting tank for recovering paint liquid is provided on the top of the base (3), and the liquid collecting tank is funnel-shaped. A filter screen (12) is installed on the top of the liquid collecting tank. A liquid return pipe (13) connected to the liquid collecting tank is installed on the bottom of the cabinet (1). The other end of the liquid return pipe (13) is fixedly connected to the liquid inlet end of the booster filter pump (2). The liquid outlet end of the booster filter pump (2) is installed with a liquid outlet pipe that runs through the interior of the cabinet (1). A connecting hose (14) is installed between the bottom end of the liquid outlet pipe and the liquid inlet end of the spray gun (11).

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