Powder pollution-free circulation type automatic powder spraying equipment

Abstract

The invention discloses a powder pollution-free circulation type automatic powder spraying device, which belongs to the technical field of powder spraying, and comprises an outer shell, a powder spraying chamber is opened on the inner side of the outer shell, and the bottom of the powder spraying chamber is connected with a stirring chamber, a fixed frame is arranged on the inner side wall of the outer shell, and a movable rod is penetrated through the top of the fixed frame, one end of the movable rod is fixedly connected with a contact seat, and the end of the movable rod away from the contact seat is fixedly connected with a guide block, and a reset spring is sleeved on the outer surface of the movable rod; combined with the arrangement of the clamping frame, rubber chuck, driving wheel, belt, driven wheel and eccentric wheel and other structures, not only can the spare parts be stably clamped and limited by mechanical clamping, but also the longitudinal shaking of the spare parts after clamping can be realized, so that after the powder spraying of the spare parts is completed, the excess powder attached to the surface of the spare parts can be shaken off, so as to prevent the excessive attached powder from affecting the subsequent normal use of the spare parts.

Description

Technical Field

[0001] The invention relates to the technical field of powder spraying, in particular to a powder pollution-free circulating automatic powder spraying device. Background Art

[0002] Electrostatic powder spraying technology appeared in the 1960s and was mainly used for metal surface coating. With the rapid development of my country's manufacturing industry, the proportion of powder spraying technology in metal surface treatment has continued to grow year by year due to its unique advantages such as good environmental performance, simple operation, no organic solvents, and excellent coating performance. So far, it has largely replaced the original paint coating process. Electrostatic spraying equipment, and powder spraying equipment will be used in the process of spraying;

[0003] However, in the process of electrostatic powder spraying of existing spare parts, most of them are either carried out by hand-held powder spraying on the spare parts, or by mechanical clamping. However, both powder spraying methods have certain limitations. That is, when the powder is sprayed manually, the powder may be inhaled into the human respiratory tract during the powder spraying process, thereby causing damage to the operator's respiratory tract and affecting the health of the operator. The mechanical clamping method will result in more powder attached to the surface of the spare parts after the powder spraying is completed, and the excess powder cannot be shaken off in time, and the overall practicality is poor. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a powder pollution-free circulating automatic powder spraying equipment, which can solve the problem that in the process of electrostatic powder spraying of existing spare parts, most of the spare parts are either manually hand-held for hand-held powder spraying or mechanically clamped for powder spraying. However, both powder spraying methods have certain limitations. That is, when manually hand-held powder spraying is performed, powder may be inhaled into the human respiratory tract during the powder spraying process, thereby causing damage to the operator's respiratory tract and affecting physical health. The mechanical clamping method will result in a large amount of powder attached to the surface of the spare parts after the powder spraying is completed, and the excess powder cannot be shaken off in time, resulting in a technical problem of poor overall practicality.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a powder pollution-free circulation type automatic powder spraying device, comprising an outer shell, a powder spraying chamber is opened on the inner side of the outer shell, and the bottom of the powder spraying chamber is connected to a stirring chamber, a fixed frame is arranged on the inner side wall of the outer shell, and a movable rod is passed through the top of the fixed frame, one end of the movable rod is fixedly connected to a contact seat, and the end of the movable rod away from the contact seat is fixedly connected to a guide block, a return spring is sleeved on the outer surface of the movable rod, a micro motor is fixedly installed on the inner side wall of the guide block, and an electric push rod is connected to the output top of the micro motor, and the other end of the electric push rod is fixedly connected to the contact seat. The end is connected to a clamping frame, a first electric cylinder is arranged on the surface of the clamping frame, and one end of the first electric cylinder is connected to a rubber chuck, a protective shell is welded to the bottom side wall of the outer shell, and a first motor is arranged on the side of the protective shell away from the outer shell, an output end of the first motor is connected to a driving wheel, and the other end of the driving wheel is connected to a rotating roller through a rotating shaft, a belt is sleeved on the outer surface of the driving wheel, and a driven wheel is connected to the inner side of the other end of the belt, and one side of the driven wheel is connected to an eccentric wheel through a rotating shaft, guide plates are distributed above the rotating roller, and a powder spraying structure is arranged on the top of the inner cavity of the outer shell.

[0006] As a preferred technical solution of the present invention, the powder spraying structure includes a second electric cylinder, a lifting seat, a nozzle and a stretch hose. The second electric cylinder is fixedly installed on the top of the outer shell, and the bottom of the second electric cylinder is fixedly connected to the lifting seat. Nozzles are equidistantly distributed on the bottom of the lifting seat, and one side of the lifting seat is connected to a stretch hose.

[0007] As a preferred technical solution of the present invention, a first pipe is fixedly connected to the bottom of one end of the outer shell, and the other end of the first pipe is connected to a mixing box, a second pipe is fixedly connected to the front end of the mixing box, and the other end of the second pipe is connected to an exhaust fan, and the top of the exhaust fan is connected to a third pipe.

[0008] As a preferred technical solution of the present invention, a second motor is fixedly mounted on the side wall of the mixing box, and an output end of the second motor is connected to a stirring roller, and a mixing rod is distributed at one end of the stirring roller.

[0009] As a preferred technical solution of the present invention, the inner cavity of the third pipe is provided with a flow guide seat, and one end of the flow guide seat is connected to a shaft rod, and the outer surface of the shaft rod is sleeved with spiral leaves.

[0010] As a preferred technical solution of the present invention, the contact seat is slidably connected to the fixed frame through the movable rod, and an arc groove with a size matching that of the eccentric wheel is formed at the top of the contact seat.

[0011] As a preferred technical solution of the present invention, two ends of the return spring are respectively fixedly connected to the top of the inner cavity of the fixed frame and the upper surface of the guide block, and the guide block is slidably connected to the fixed frame.

[0012] As a preferred technical solution of the present invention, the first electric cylinders are equidistantly distributed along the center point of the clamping frame, and the clamping frame is disc-shaped as a whole.

[0013] As a preferred technical solution of the present invention, the driven wheel is rotationally connected to the driving wheel through the belt, and the driven wheels are symmetrically distributed along the vertical center line of the outer shell.

[0014] As a preferred technical solution of the present invention, a plurality of rod bodies are evenly distributed on the surface of the mixing rod, and the mixing rods are symmetrically distributed along the transverse center line of the stirring roller.

[0015] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0016] 1. Combined with the setting of the clamping frame, rubber chuck, driving wheel, belt, driven wheel and eccentric wheel and other structures, not only can the spare parts be stably clamped and limited by mechanical clamping, but also the longitudinal shaking of the spare parts after clamping can be realized, so that after the powder spraying of the spare parts is completed, the excess powder attached to the surface of the spare parts can be shaken off, so as to prevent the excessive attachment of powder from affecting the subsequent normal use of the spare parts. The work of the first electric cylinder will cause the rubber chuck to move accordingly, so as to facilitate the subsequent use of the rubber chuck to stably clamp one end of the spare part, and the rotation of the driving wheel will cause the belt to drive the driven wheel to move accordingly, and then the movement of the driven wheel is used to realize the rotation of the eccentric wheel, and then the movable rod will push the guide block under the action of the eccentric wheel, so as to realize the shaking of the entire clamping frame, so as to facilitate the subsequent parts to shake off the excess powder adsorbed on the surface of the spare parts;

[0017] 2. Combined with the exhaust fan, pipeline, rotating roller and stirring rod and other structures, the excess powder generated during powder spraying can be effectively recycled and reused to reduce resource consumption. At the same time, the recycled powder can be effectively stirred to prevent the powder from agglomerating, which will cause subsequent pipeline blockage and affect the normal circulation of the powder. The exhaust fan works in conjunction with the pipeline to realize the recycling of the powder, and the rotating roller, stirring rod and mixing rod can be rotated respectively under the action of multiple motors, so that the rotating roller, stirring rod and mixing rod can be used to facilitate the subsequent mixing and stirring of the recycled powder, effectively preventing the occurrence of agglomeration.

[0018] 3. The combined arrangement of the guide seat, shaft and spiral blades can assist the circulation of powder in the pipeline, and divert the powder during its circulation, thereby improving the efficiency and effect of powder circulation and enabling the powder to be sprayed out more evenly. When the powder passes through the guide seat, the diversion of the powder can be achieved by utilizing the inclined surface and multiple holes on one side of the guide seat. Since the spiral blades are rotationally connected to the guide seat through the shaft, when the powder passes through the spiral blades, the rotating spiral blades can not only assist the circulation of the powder, but also better prevent the powder from causing pipeline blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the powder pollution-free circulation type automatic powder spraying equipment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the powder pollution-free circulation type automatic powder spraying equipment of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the outer shell of the powder pollution-free circulation type automatic powder spraying equipment of the present invention;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of a mixing box of the powder pollution-free circulation type automatic powder spraying equipment of the present invention;

[0023] Figure 5 The present invention is a non-polluting circulating automatic powder spraying device Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 6 It is a schematic diagram of the side view of the clamping frame of the powder pollution-free circulation type automatic powder spraying equipment of the present invention;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the third pipeline portion of the powder pollution-free circulation type automatic powder spraying equipment of the present invention;

[0026] Figure 8 The figure is a schematic diagram of the rear view structure of the outer shell of the powder pollution-free circulation type automatic powder spraying equipment of the present invention.

[0027] Wherein: 1. outer shell; 2. powder spraying chamber; 3. stirring chamber; 4. fixed frame; 5. movable rod; 6. contact seat; 7. guide block; 8. reset spring; 9. micro motor; 10. electric push rod; 11. clamping frame; 12. first electric cylinder; 13. rubber chuck; 14. protective shell; 15. first motor; 16. driving wheel; 17. rotating roller; 18. belt; 19. driven wheel; 20. eccentric wheel; 21. guide plate; 22. second electric cylinder; 23. lifting seat; 24. nozzle; 25. stretch hose; 26. first pipeline; 27. mixing box; 28. second pipeline; 29. ​​exhaust fan; 30. third pipeline; 31. second motor; 32. stirring roller; 33. mixing rod; 34. guide seat; 35. shaft rod; 36. spiral blade. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 8As shown, the present invention provides a powder pollution-free circulation type automatic powder spraying device, comprising an outer shell 1, a powder spraying chamber 2 is opened on the inner side of the outer shell 1, and the bottom of the powder spraying chamber 2 is connected to a stirring chamber 3, a fixed frame 4 is provided on the inner side wall of the outer shell 1, and a movable rod 5 is penetrated through the top of the fixed frame 4, one end of the movable rod 5 is fixedly connected to a contact seat 6, and the end of the movable rod 5 away from the contact seat 6 is fixedly connected to a guide block 7, a reset spring 8 is sleeved on the outer surface of the movable rod 5, a micro motor 9 is fixedly installed on the inner side wall of the guide block 7, and an electric push rod 10 is connected to the output top of the micro motor 9, and the other end of the electric push rod 10 is connected to a clamping frame 11, a first electric cylinder 12 is provided on the surface of the clamping frame 11, and one end of the first electric cylinder 12 is connected to a rubber chuck 13, a protective shell 14 is welded to the bottom side wall of the outer shell 1, and A first motor 15 is provided on the side of the protective shell 14 away from the outer shell 1, the output end of the first motor 15 is connected to a driving wheel 16, and the other end of the driving wheel 16 is connected to a rotating roller 17 through a rotating shaft, a belt 18 is sleeved on the outer surface of the driving wheel 16, and the other end of the belt 18 is connected to a driven wheel 19 on the inner side, and one side of the driven wheel 19 is connected to an eccentric wheel 20 through a rotating shaft, a guide plate 21 is distributed above the rotating roller 17, a powder spraying structure is provided on the top of the inner cavity of the outer shell 1, and the powder spraying structure includes a second electric cylinder 22, a lifting seat 23, a nozzle 24 and a stretching hose 25, the second electric cylinder 22 is fixedly installed on the top of the outer shell 1, and the bottom of the second electric cylinder 22 is fixedly connected to the lifting seat 23, the bottom of the lifting seat 23 is equidistantly distributed with nozzles 24, and one side of the lifting seat 23 is connected to a stretching hose 25;

[0030] First, the whole device is powered on to start working, and then the control panel is used to control the division of labor of different structures. When the parts to be processed need to be powder-sprayed, the sealed box door is opened, the parts to be processed are placed inside the powder-spraying chamber 2, and the parts are fully clamped and limited by the multiple rubber clamps 13 provided. Then the second electric cylinder 22 works to longitudinally push the lifting seat 23 fixedly connected to its bottom, and then the longitudinal movement of the lifting seat 23 is used to adjust the height of the nozzle 24. After the adjustment is completed, the powder-spraying of the parts can be achieved by using the work of the nozzle 24. At the same time, the movement of the lifting seat 23 will also drive the stretch hose 25 to move accordingly;

[0031] As a further implementation of this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, a fixed frame 4 is provided on the inner wall of the outer shell 1, and a movable rod 5 passes through the top of the fixed frame 4, one end of the movable rod 5 is fixedly connected to a contact seat 6, the contact seat 6 is slidably connected to the fixed frame 4 through the movable rod 5, and the top of the contact seat 6 is provided with an arc groove whose size matches the eccentric wheel 20, the end of the movable rod 5 away from the contact seat 6 is fixedly connected to a guide block 7, the outer surface of the movable rod 5 is sleeved with a return spring 8, the two ends of the return spring 8 are respectively fixedly connected to the top of the inner cavity of the fixed frame 4 and the upper surface of the guide block 7, and the guide block 7 is slidably connected to the fixed frame 4, the inner wall of the guide block 7 is fixedly installed with a micro motor 9, and the output top of the micro motor 9 is connected to an electric push rod 10, the other end of the electric push rod 10 is connected to a clamping frame 11, the surface of the clamping frame 11 is provided with a first electric cylinder 12, and the first electric cylinder One end of 12 is connected to a rubber chuck 13, the first electric cylinder 12 is equidistantly distributed along the center point of the clamping frame 11, and the clamping frame 11 is disc-shaped as a whole, the bottom side wall of the outer shell 1 is welded with a protective shell 14, and the side of the protective shell 14 away from the outer shell 1 is provided with a first motor 15, the output end of the first motor 15 is connected to a driving wheel 16, and the other end of the driving wheel 16 is connected to a rotating roller 17 through a rotating shaft, the outer surface of the driving wheel 16 is sleeved with a belt 18, and the other end of the belt 18 is connected to a driven wheel 19 on the inner side, and one side of the driven wheel 19 is connected to an eccentric wheel 20 through a rotating shaft, the driven wheel 19 is rotatably connected to the driving wheel 16 through the belt 18, and the driven wheel 19 is symmetrically distributed along the vertical center line of the outer shell 1, and a guide plate 21 is distributed above the rotating roller 17, and a powder spraying structure is provided on the top of the inner cavity of the outer shell 1;

[0032] The micro motor 9 is electrically connected to an independent power source disposed inside the guide block 7 through a wire, and the plurality of electric cylinders can also be electrically connected to the independent power source through a wire, or electrically connected to an external power source through a wire;

[0033] When the part to be processed is placed on the inner side of the outer shell 1, first, the electric push rods 10 on both sides work to push the clamping frame 11 laterally, thereby realizing the relative movement of the clamping frames 11 on both sides, and then the clamping frame 11 contacts one end of the part. At the same time, the first electric cylinder 12 works to push the rubber clamp 13, and then uses the movement of multiple rubber clamps 13 to clamp and limit one end of the part. The same is true for the other end, thereby achieving full clamping and limiting of the spare parts to ensure their own stability. Then, during the powder spraying process, the micro motor 9 works to realize the rotation of the electric push rod 10, thereby realizing the rotation of the entire clamping frame 11, and utilizing the rotation of the clamping frame 11 to realize the flipping of the part, thereby realizing the full powder spraying of the part, improving the efficiency and effect of the powder spraying, and when the powder spraying is completed, the first motor 15 works to rotate the driving wheel 16 connected to its output end, and the rotation of the driving wheel 16 will also realize the synchronous rotation of the rotating roller 17, and then the rotation of the driving wheel 16 is utilized to enable the belt 18 to drive the driven The wheel 19 moves accordingly, and then the rotation of the driven wheel 19 will make the eccentric wheel 20 rotate synchronously, and the rotation of the eccentric wheel 20 will push the contact seat 6, thereby realizing the longitudinal movement of the contact seat 6. Therefore, when the contact seat 6 moves longitudinally, the movable rod 5 will move the guide block 7 fixedly connected to its bottom, so as to realize the longitudinal movement of the guide block 7 along the fixed frame 4. At the same time, when the movable rod 5 moves, it will drive the reset spring 8 to deform accordingly, and then the longitudinal reciprocating movement of the guide block 7 can be realized by combining the deformation of the reset spring 8 and the rotation of the eccentric wheel 20, so as to realize the longitudinal reciprocating movement of the clamping frame 11, ensuring that the excess dust adsorbed on the surface of the parts can be shaken off later, and the excess dust generated during the powder spraying process will fall into the inner side of the stirring chamber 3 through the grille groove set at the bottom of the powder spraying chamber 2, and pass through the rotating roller 17 under the action of the guide plate 21, and then use the rotation of the rotating roller 17 to simply stir the powder, so as to prevent the powder from accumulating and agglomerating, which affects the subsequent recycling and reuse of the powder;

[0034] As a further implementation of this embodiment, Figure 1 , Figure 2 and Figure 8 As shown, a first pipe 26 is fixedly connected to the bottom of one end of the outer shell 1, and a mixing box 27 is connected to the other end of the first pipe 26, a second pipe 28 is fixedly connected to the front end of the mixing box 27, and an exhaust fan 29 is connected to the other end of the second pipe 28, and a third pipe 30 is connected to the top of the exhaust fan 29;

[0035] When the powder is accumulated on the inner side of the stirring chamber 3, the corresponding powder can be sucked into the inner side of the mixing box 27 through the first pipe 26 under the action of the exhaust fan 29, and then further mixed and stirred through the structure set inside the mixing box 27. At the same time, an opening is set at the top of the mixing box 27, and it is closed by a sealing door. Therefore, the purpose of adding materials can be achieved by combining the opening set. Otherwise, the amount of recovered powder is small, which affects the subsequent powder spraying process. The added powder can also be mixed with the recovered powder through the structure inside the mixing box 27, and the processed powder enters the inner side of the second pipe 28, and then is input into the inner side of the stretch hose 25 through the third pipe 30, so as to facilitate the subsequent spraying through the nozzle 24.

[0036] As a further implementation of this embodiment, Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, a second motor 31 is fixedly installed on the side wall of the mixing box 27, and a stirring roller 32 is connected to the output end of the second motor 31, a mixing rod 33 is distributed at one end of the stirring roller 32, a guide seat 34 is provided in the inner cavity of the third pipe 30, and a shaft 35 is connected to one end of the guide seat 34, a plurality of rod bodies are evenly distributed on the surface of the mixing rod 33, and the mixing rods 33 are symmetrically distributed along the transverse center line of the stirring roller 32, and a spiral blade 36 is sleeved on the outer surface of the shaft 35;

[0037] When the recovered powder is drawn into the inner side of the mixing box 27, if the recovered powder dosage is too small, powder can be added through the opening set at the top of the mixing box 27, and then the second motor 31 works to realize the rotation of the stirring roller 32, and then the powder is fully mixed and stirred by the rotation of the stirring roller 32. At the same time, when the stirring roller 32 rotates, the mixing rod 33 will also rotate accordingly, and then the stirring roller 32 can be assisted to mix and stir the powder, thereby improving the efficiency and effect of mixing and stirring. The guide seat 34 set on the inner side of the third pipeline 30 can perform a simple diversion process on the circulating powder due to the inclined surface and multiple holes set on one end surface. At the same time, since the spiral blade 36 is rotatably connected with the guide seat 34 through the shaft rod 35, the combined spiral blade 36 can effectively prevent the powder from being blocked on the inner side of the third pipeline 30, thereby improving the efficiency of powder circulation.

[0038] Specific working principle: first, the entire device is powered on to start working, and then the control panel is used to control the division of labor of different structures. When it is necessary to spray powder on the spare parts to be processed, open the sealed box door, place the parts to be processed on the inner side of the powder spraying chamber 2, and the electric push rods 10 on both sides work to push the clamping frame 11 laterally, thereby realizing the relative movement of the clamping frames 11 on both sides, and then the clamping frame 11 contacts one end of the part. At the same time, the first electric cylinder 12 works to push the rubber chuck 13, and then the movement of multiple rubber chucks 13 is used to clamp and limit one end of the part, and the same is true for the other end, thereby achieving full clamping and limiting of the spare parts to ensure their own stability. Then, during the powder spraying process, the micro motor 9 works to realize the rotation of the electric push rod 10, and then realizes the rotation of the entire clamping frame 11. The rotation of the clamping frame 11 is used to realize the flipping of the parts, so that the parts can be fully powdered, which improves the efficiency and effect of powder spraying. During powder spraying, the second electric cylinder 22 The work longitudinally pushes the lifting seat 23 fixedly connected to its bottom, and then uses the longitudinal movement of the lifting seat 23 to adjust the position height of the nozzle 24. After the adjustment is completed, the work of the nozzle 24 can be used to realize the powder spraying of the parts. At the same time, the movement of the lifting seat 23 will also drive the stretch hose 25 to move accordingly. When the powder spraying is completed, the first motor 15 works to rotate the driving wheel 16 connected to its output end, and the rotation of the driving wheel 16 will also realize the synchronous rotation of the rotating roller 17, and then the rotation of the driving wheel 16 is used to make the belt 18 drive the driven wheel 19 to move accordingly, and then the rotation of the driven wheel 19 will cause the eccentric wheel 20 to rotate synchronously, and the rotation of the eccentric wheel 20 will push the contact seat 6 during the rotation, thereby realizing the longitudinal movement of the contact seat 6. Therefore, when the contact seat 6 moves longitudinally, the movable rod 5 will move the guide block 7 fixedly connected to its bottom, so as to realize the longitudinal movement of the guide block 7 along the fixed frame 4. At the same time, when the movable rod 5 moves, it will drive the complex The positioning spring 8 also deforms accordingly, and then the deformation of the reset spring 8 and the rotation of the eccentric wheel 20 can realize the longitudinal reciprocating motion of the guide block 7, thereby realizing the longitudinal reciprocating motion of the clamping frame 11, ensuring that the excess dust adsorbed on the surface of the parts can be shaken off later, and the excess dust generated during the powder spraying process will fall into the inner side of the stirring chamber 3 through the grille groove set at the bottom of the powder spraying chamber 2, and pass through the rotating roller 17 under the action of the guide plate 21, and then use the rotation of the rotating roller 17 to simply stir the powder to prevent the powder from accumulating and agglomerating, which affects the subsequent recycling and reuse of the powder. When the powder accumulates on the inner side of the stirring chamber 3, the corresponding powder can be drawn into the inner side of the mixing box 27 through the first pipe 26 set under the action of the exhaust fan 29, and then further mixed and stirred through the structure set inside the mixing box 27. At the same time, an opening is set at the top of the mixing box 27, and it is closed by a sealing door.Therefore, the purpose of adding materials can be achieved by combining with the opening of this setting. Otherwise, the amount of recovered powder is small, which affects the subsequent powder spraying process. The added powder can also be mixed with the recovered powder through the structure inside the mixing box 27, and the processed powder enters the inner side of the second pipe 28, and then is input into the inner side of the stretch hose 25 through the third pipe 30, so as to be convenient for subsequent spraying through the nozzle 24. When the recovered powder is drawn into the inner side of the mixing box 27, if the amount of recovered powder is too small, powder can be added through the opening set at the top of the mixing box 27, and then the second motor 31 works to realize the rotation of the stirring roller 32, and then the powder is used. The stirring roller 32 rotates to fully mix and stir the powder. When the stirring roller 32 rotates, the mixing rod 33 will also rotate accordingly, thereby assisting the stirring roller 32 in mixing and stirring the powder, thereby improving the efficiency and effect of mixing and stirring. The guide seat 34 arranged on the inner side of the third pipe 30 can perform a simple flow diversion process on the circulating powder due to the inclined surface and multiple holes arranged on one end surface. At the same time, since the spiral blade 36 is rotatably connected with the guide seat 34 through the shaft rod 35, the combined spiral blade 36 can effectively prevent the powder from being blocked on the inner side of the third pipe 30, thereby improving the efficiency of powder circulation.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A powder pollution-free circulation type automatic powder spraying device, comprising an outer shell (1), characterized in that: A powder spray chamber (2) is provided on the inner side of the outer shell (1), and the bottom of the powder spray chamber (2) is connected to a stirring chamber (3). A fixed frame (4) is provided on the inner side wall of the outer shell (1), and a movable rod (5) is passed through the top of the fixed frame (4). One end of the movable rod (5) is fixedly connected to a contact seat (6), and the end of the movable rod (5) away from the contact seat (6) is fixedly connected to a guide block (7). A return spring (8) is sleeved on the outer surface of the movable rod (5). A micro motor (9) is fixedly installed on the inner side wall of the guide block (7), and the output top of the micro motor (9) is connected to an electric push rod (10). The other end of the electric push rod (10) is connected to a clamping frame (11), and the surface of the clamping frame (11) is provided with a first electric cylinder (11). 2), and one end of the first electric cylinder (12) is connected to a rubber chuck (13), a protective shell (14) is welded to the bottom side wall of the outer shell (1), and a first motor (15) is arranged on the side of the protective shell (14) away from the outer shell (1), the output end of the first motor (15) is connected to a driving wheel (16), and the other end of the driving wheel (16) is connected to a rotating roller (17) via a rotating shaft, a belt (18) is sleeved on the outer surface of the driving wheel (16), and the other end of the belt (18) is connected to a driven wheel (19) on the inner side, and one side of the driven wheel (19) is connected to an eccentric wheel (20) via a rotating shaft, a guide plate (21) is distributed above the rotating roller (17), and a powder spraying structure is arranged on the top of the inner cavity of the outer shell (1).

2. The powder pollution-free circulation type automatic powder spraying equipment according to claim 1 is characterized in that: The powder spraying structure comprises a second electric cylinder (22), a lifting seat (23), a nozzle (24) and a stretch hose (25); the second electric cylinder (22) is fixedly mounted on the top of the outer shell (1), and the bottom of the second electric cylinder (22) is fixedly connected to the lifting seat (23); the bottom of the lifting seat (23) has nozzles (24) distributed equidistantly; and one side of the lifting seat (23) is connected to the stretch hose (25).

3. The powder pollution-free circulating automatic powder spraying equipment according to claim 1 is characterized in that: A first pipe (26) is fixedly connected to the bottom of one end of the outer shell (1), and the other end of the first pipe (26) is connected to a mixing box (27). A second pipe (28) is fixedly connected to the front end of the mixing box (27), and the other end of the second pipe (28) is connected to an exhaust fan (29). The top end of the exhaust fan (29) is connected to a third pipe (30).

4. The powder pollution-free circulation type automatic powder spraying equipment according to claim 3 is characterized in that: A second motor (31) is fixedly mounted on the side wall of the mixing box (27), and an output end of the second motor (31) is connected to a stirring roller (32), and a mixing rod (33) is disposed at one end of the stirring roller (32).

5. The powder pollution-free circulation type automatic powder spraying equipment according to claim 3 is characterized in that: The inner cavity of the third pipe (30) is provided with a flow guide seat (34), one end of the flow guide seat (34) is connected to a shaft (35), and the outer surface of the shaft (35) is sleeved with spiral leaves (36).

6. The powder pollution-free circulation type automatic powder spraying equipment according to claim 1 is characterized in that: The contact seat (6) is slidably connected to the fixed frame (4) via the movable rod (5), and an arc-shaped groove having a size matching that of the eccentric wheel (20) is provided at the top end of the contact seat (6).

7. The powder pollution-free circulating automatic powder spraying equipment according to claim 1 is characterized in that: The two ends of the return spring (8) are respectively fixedly connected to the top of the inner cavity of the fixed frame (4) and the upper surface of the guide block (7), and the guide block (7) and the fixed frame (4) are slidably connected.

8. The powder pollution-free circulation type automatic powder spraying equipment according to claim 1 is characterized in that: The first electric cylinders (12) are distributed equidistantly along the center point of the clamping frame (11), and the clamping frame (11) is disc-shaped as a whole.

9. The powder pollution-free circulation type automatic powder spraying equipment according to claim 1 is characterized in that: The driven wheel (19) is rotationally connected to the driving wheel (16) via the belt (18), and the driven wheels (19) are symmetrically distributed along the vertical center line of the outer shell (1).

10. The powder pollution-free circulation type automatic powder spraying equipment according to claim 4 is characterized in that: A plurality of rod bodies are evenly distributed on the surface of the mixing rod (33), and the mixing rods (33) are symmetrically distributed along the transverse center line of the stirring roller (32).

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