Spraying device capable of eliminating powder static electricity

Abstract

The utility model discloses a spraying device capable of eliminating powder static electricity, and relates to the technical field of spraying devices. A spraying mechanism is arranged on the front side of the spraying box, a dust collecting mechanism is arranged on the inner side of the bottom supporting box, a limiting moving rail is arranged on the inner side of the spraying box, a conveying belt is slidably connected to the lower end of the limiting moving rail, a driving mechanism is connected to the outside of the conveying belt, and a rotating mechanism is arranged on the rear side of the conveying belt. A conveying belt drives a product to be treated to enter a spraying box from a feeding port, a lifting plate is driven by a multi-stage electric push rod to move in the vertical direction, then a spraying pipe is driven to move in the vertical direction, a driving wheel and a rotating rod rotate relative to the conveying belt, and the product at the lower end of a hanging hook continuously rotates when entering the spraying box; and for parts with complex structures, omission can be effectively avoided through the one-way spraying mechanism, and therefore the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to a powder static electricity eliminating spraying device. Background Art

[0002] Spraying equipment is a product of the increasingly common environment of automation in the development of industrial technology after the reform and opening up. With the increasing degree of automation, the application of spraying production lines has become more and more extensive and has penetrated into many fields of the national economy. The spraying equipment on the market can be divided into three types according to the degree of automation: manual spraying equipment, semi-automatic spraying equipment and fully automatic spraying equipment.

[0003] A new type of electrostatic spraying device is disclosed in the patent with application number CN201120481307.X. It discloses a new type of electrostatic spraying device, including a high-voltage electrostatic generator, a powder supply system, an air switch and a spray gun. The output of the high-voltage electrostatic generator is divided into two groups of 8 branch high-voltage wires; the spray gun is detachably connected to a high-voltage discharge needle through a connector, and the high-voltage discharge needle is correspondingly connected to the 8 branch high-voltage wires. The purpose of this utility model is to improve the structure of the electrostatic spraying device to solve the problem that the existing electrostatic spraying device is not suitable for large-scale spraying and cannot meet the needs of mass production.

[0004] In the patent with application number CN201120481307.X, two sets of spray guns are required to realize the spraying operation on the products in the powder spraying room, but this type of spraying equipment generally only sprays on the front and back sides. For some special-shaped products with more complex structures, it is easy to miss some positions by only operating with the spraying equipment on the front and back sides, which further affects the spraying quality. Therefore, the present application proposes a powder electrostatic spraying device to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a device for eliminating electrostatic powder spraying, thereby solving the technical problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for eliminating electrostatic spraying of powder, comprising a spray box, a lower port opening of the spray box is provided, a bottom support box is fixedly connected to the lower end of the spray box, a spray mechanism is provided on the front side of the spray box, a dust collecting mechanism is provided on the inner side of the bottom support box, a feeding port is provided on the left side wall of the spray box, a discharging port is provided on the right side wall of the spray box, a limited movable track is provided on the inner side of the spray box, the left and right sides of the upper surface of the limited movable track are respectively fixedly connected to the upper inner walls of the feeding port and the discharging port, a conveyor belt is slidably connected to the lower end of the limited movable track, a driving mechanism is connected to the outside of the conveyor belt, a rotating rod is rotatably connected to the lower end of the conveyor belt, a hanging hook is fixedly connected to the lower end of the rotating rod, a driving wheel is fixedly connected to the rotating rod, an anti-skid groove is provided on the peripheral surface of the driving wheel, and a rotating mechanism is provided on the rear side of the conveyor belt;

[0007] The rotating mechanism includes a driving electric push rod, a connecting plate and an abutment plate. The driving electric push rod is fixed at the upper end of the spray box. The output end of the driving electric push rod is fixedly connected to a propulsion rod. The propulsion rod is L-shaped. The front end of the propulsion rod passes through the rear wall of the spray box and is fixedly connected to the rear wall of the connecting plate. The abutment plate is located on the front side of the connecting plate. An abutment groove is provided at the front end of the abutment plate. The abutment groove is located directly behind the driving wheel. Both left and right ends of the abutment groove are inclined toward the rear.

[0008] Preferably, the rear side end of the abutment plate is symmetrically fixedly connected with a limiting slide bar on both sides, the rear side end of the limiting slide bar passes through the connecting plate and is fixedly connected with a baffle, a buffer spring and a pressure detection sensor are sleeved on the limiting slide bar, the pressure detection sensor is fixed on the front side end of the connecting plate, the front side end of the buffer spring is fixedly connected to the rear side end of the abutment plate, the rear side end of the buffer spring is fixedly connected to the front side end of the pressure detection sensor, and the pressure detection sensor is externally connected to a controller.

[0009] Preferably, the dust collecting mechanism includes a dust collector, which is fixed to the inner side of the bottom support box, and a partition 1 is arranged on the inner side of the bottom support box, and the partition 1 is arranged parallel to the upper side wall of the bottom support box, and the outer end of the partition 1 is fixedly connected to the inner side wall of the bottom support box, and a plurality of dust suction holes are opened on the upper side wall of the bottom support box, and a partition 2 is arranged below the partition 1, and the upper end of the partition 2 is fixedly connected to the lower end of the partition, and the lower end of the partition 2 is fixedly connected to the lower inner wall of the bottom support box, and the front and rear ends of the partition 2 are fixedly connected to the lower inner wall of the bottom support box. The ends are respectively fixedly connected to the front and rear inner walls of the bottom support box, a dust collecting chamber is formed between the partition two, the partition one and the side wall of the bottom support box, a dust suction port is opened on the partition one, and the upper end of the partition one is inclined toward the position of the dust suction port, the dust suction port is connected with the dust collecting chamber, the vacuum cleaner is located on the side of the partition two away from the dust collecting chamber, the input end of the vacuum cleaner passes through the partition two and is connected with the dust collecting chamber, the output end of the vacuum cleaner passes through the side wall of the bottom support box and extends to the outside of the bottom support box, and a filter is arranged on the inside of the dust collecting chamber.

[0010] Preferably, the spraying mechanism includes a protective frame, which is fixed on the front outer wall of the spray box, and the inner side of the protective frame is slidably connected to a lifting plate. A plurality of limiting slides are provided on the front side wall of the spray box, and a plurality of spray pipes are fixedly connected to the side and rear ends of the lifting plate. The end of the spray pipe away from the lifting plate passes through the limiting slide and extends to the inside of the spray box. The outside of the spray pipe is connected to a powder feeding device, and a multi-stage electric push rod is fixedly connected to the lower inner wall of the protective frame, and the output end of the multi-stage electric push rod passes through the lower side wall of the protective frame and is fixedly connected to the lower end of the lifting plate.

[0011] Preferably, cleaning brushes are provided on the inner walls on both the front and rear sides of the feed inlet.

[0012] Compared with the related art, the device for eliminating electrostatic powder spraying provided by the utility model has the following beneficial effects:

[0013] 1. The utility model provides a device for eliminating electrostatic spraying of powder. A rotating mechanism is arranged on the rear side of a conveyor belt in the device. When in use, the conveyor belt drives the product to be processed from the material inlet into the spray box, and a multi-stage electric push rod is used to drive the lifting plate to move in the up and down directions, thereby driving the spray pipe to move in the up and down directions. The electric push rod in the rotating mechanism drives the propulsion rod, the connecting plate and the abutment plate to move in the direction of the driving wheel, and the outer end of the driving wheel abuts against the bottom of the abutment groove. With the movement of the conveyor belt, the driving wheel and the rotating rod rotate relative to the conveyor belt, and the product at the lower end of the hanging hook continuously rotates when entering the spray box, thereby utilizing the one-way spray mechanism to realize the spraying operation of the product. Moreover, for parts with more complex structures, the device can effectively avoid omissions and thus improve product quality.

[0014] 2. The utility model provides a powder electrostatic spraying device, in which a dust collecting chamber is formed by partitions 1 and 2 on the inner side of a bottom support box, a dust collector is provided outside the dust collecting chamber, and during the spraying process, a dust suction pump, dust suction holes and dust suction ports are used to clean the powder suspended in the spray box and collect it in the dust collecting chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0019] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0020] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0021] Figure 7 It is another schematic diagram of the cross-sectional three-dimensional structure of the utility model;

[0022] Figure 8 It is a schematic diagram of a three-dimensional structure of another position section of the utility model;

[0023] Fig. 9 It is a three-dimensional structural schematic diagram of the rotating mechanism of the utility model;

[0024] Fig.10 for Fig. 9 A partial enlarged view of point D in the middle.

[0025] In the figure: 1. spray box; 2. bottom support box; 3. feed port; 4. discharge port; 5. cleaning brush; 6. limit moving track; 7. conveyor belt; 8. rotating rod; 9. hanging hook; 10. driving wheel; 11. anti-skid groove; 12. protection frame; 13. multi-stage electric push rod; 14. lifting plate; 15. limit slide; 16. spray pipe; 17. dust suction hole; 18. partition one; 19. vacuum cleaner; 20. exhaust pipe; 21. pressure detection sensor; 22. partition two; 23. filter; 24. dust suction port; 25. driving electric push rod; 26. propulsion rod; 27. connecting plate; 28. abutment plate; 29. ​​abutment groove; 30. baffle; 31. limit slide; 32. buffer spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-10 The utility model provides a technical solution: a powder electrostatic spraying device, comprising a spray box 1, a lower port opening is set, the lower end of the spray box 1 is fixedly connected to a bottom support box 2, a spray mechanism is set on the front side of the spray box 1, a dust collecting mechanism is set on the inner side of the bottom support box 2, a feed inlet 3 is set on the left side wall of the spray box 1, a discharge port 4 is set on the right side wall of the spray box 1, a limited movable track 6 is set on the inner side of the spray box 1, and the left and right sides of the upper surface of the limited movable track 6 are respectively connected to the upper inner side of the feed inlet 3 and the discharge port 4. The conveyor belt 7 is fixedly connected to the wall, and the lower end of the limit moving track 6 is slidably connected to the conveyor belt 7. The conveyor belt 7 is an annular structure (partial structure in the figure). The conveyor belt 7 is externally connected to a driving motor. Under the action of the driving motor, the conveyor belt 7 is cyclically rotated. The lower end of the conveyor belt 7 is rotatably connected to a rotating rod 8. The lower end of the rotating rod 8 is fixedly connected to a hanging hook 9. The rotating rod 8 is fixedly connected to a driving wheel 10. The driving wheel 10 is a rubber material wheel. The peripheral surface of the driving wheel 10 is provided with an anti-skid groove 11. The rear side of the conveyor belt 7 is provided with a rotating mechanism;

[0028] The rotating mechanism includes a driving electric push rod 25, a connecting plate 27 and an abutment plate 28. The driving electric push rod 25 is fixed at the upper end of the spray box 1. The output end of the driving electric push rod 25 is fixedly connected with a propulsion rod 26. The propulsion rod 26 is L-shaped. The front side end of the propulsion rod 26 passes through the rear side wall of the spray box 1 and is fixedly connected to the rear side wall of the connecting plate 27. The abutment plate 28 is located at the front side of the connecting plate 27. An abutment groove 29 is provided at the front side end of the abutment plate 28. The abutment groove 29 is located directly behind the driving wheel 10. The left and right ends of the abutment groove 29 are both inclined to the rear side. The design of the left and right ends of the abutment groove 29 ensures that the driving wheel 10 can smoothly enter the abutment groove 29.

[0029] The left and right sides of the rear side end of the abutment plate 28 are symmetrically fixedly connected to the limit slide bar 31, the rear side end of the limit slide bar 31 passes through the connecting plate 27 and is fixedly connected with a baffle 30, a buffer spring 32 and a pressure detection sensor 21 are sleeved on the limit slide bar 31, the pressure detection sensor 21 is fixed to the front side end of the connecting plate 27, the front side end of the buffer spring 32 is fixedly connected to the rear side end of the abutment plate 28, the rear side end of the buffer spring 32 is fixedly connected to the front side end of the pressure detection sensor 21, the pressure detection sensor 21 is externally connected to the controller, and the pressure detection sensor 21 is used to detect the force between the driving wheel 10 and the abutment groove 29 to avoid the influence of a large force on the equipment;

[0030] The dust collecting mechanism includes a dust collector 19, which is fixed to the inner side of the bottom support box 2. A partition 18 is arranged on the inner side of the bottom support box 2. The partition 18 is arranged parallel to the upper side wall of the bottom support box 2. The outer end of the partition 18 is fixedly connected to the inner side wall of the bottom support box 2. A plurality of dust collecting holes 17 are provided on the upper side wall of the bottom support box 2. A partition 22 is arranged below the partition 18. The upper end of the partition 22 is fixedly connected to the lower end of the partition 18. The lower end of the partition 22 is fixedly connected to the lower inner wall of the bottom support box 2. The front and rear ends of the partition 22 are respectively fixedly connected to the front and rear inner walls of the bottom support box 2. The partition 22 and the partition 18 are connected to the bottom. A dust collecting chamber is formed between the side walls of the bottom support box 2, a dust suction port 24 is provided on the partition 18, the upper end of the partition 18 is inclined toward the position of the dust suction port 24, the dust suction port 24 is connected with the dust collecting chamber, the dust collector 19 is located on the side of the partition 22 away from the dust collecting chamber, the input end of the dust collector 19 passes through the partition 22 and is connected with the dust collecting chamber, the output end of the dust collector 19 passes through the side wall of the bottom support box 2 and extends to the outside of the bottom support box 2, a filter screen 23 is provided on the inside of the dust collecting chamber, during the spraying process, the dust collector 19 works, and the paint floating in the spray box 1 is sucked through the dust suction hole 17 on the upper side wall of the bottom support box 2, and the paint is collected in the dust collecting chamber;

[0031] The spraying mechanism includes a protective frame 12, which is fixed on the front outer wall of the spray box 1. The inner side of the protective frame 12 is slidably connected with a lifting plate 14. A plurality of limiting slideways 15 are provided on the front side wall of the spray box 1. A plurality of spray pipes 16 are fixedly connected to the side and rear ends of the lifting plate 14. The end of the spray pipe 16 away from the lifting plate 14 passes through the limiting slideway 15 and extends to the inner side of the spray box 1. The spray pipe 16 is externally connected to a powder feeding device. A multi-stage electric push rod 13 is fixedly connected to the lower inner wall of the protective frame 12. The output end of the multi-stage electric push rod 13 passes through the lower side wall of the protective frame 12 and is fixedly connected to the lower end of the lifting plate 14. When in use, the multi-stage electric push rod 13 is used to drive the lifting plate 14 to move in the up and down directions, thereby driving the spray pipe 16 to move in the up and down directions, so as to perform a single-sided spraying operation on the product to be processed;

[0032] Cleaning brushes 5 are provided on the inner walls of both sides of the front and rear of the feed inlet 3. The cleaning brushes 5 on the inner side of the feed inlet 3 are used to simply clean the outer surface of the product, thereby ensuring the quality of the product spraying.

[0033] Working principle: When in use, the product to be processed is hung on the hanging hook 9, and the conveyor belt 7 is driven to rotate in a circular manner under the action of the external driving motor, thereby driving the product to be processed from the feed port 3 into the spray box 1, and the cleaning brush 5 inside the feed port 3 is used to simply clean the outer surface of the product. When the product is sprayed on one side, the abutment plate 28 does not contact the driving wheel 10, and the multi-stage electric push rod 13 is used to drive the lifting plate 14 to move in the up and down directions, thereby driving the spray pipe 16 to move in the up and down directions, and at the same time When the external powder feeding device is used to spray the powder to be sprayed from the spray pipe 16, a single-sided spraying operation is performed on the product to be processed. When the overall spraying operation is required, the driving electric push rod 25 is used to drive the connecting plate 27 and the abutting plate 28 to move toward the driving wheel 10, and the bottom of the abutting groove 29 abuts against the outer wall of the driving wheel 10, and the pressure detection sensor 21 detects the pressure between the abutting plate 28 and the driving wheel 10. When the pressure value reaches a certain level, the driving of the electric push rod 25 is suspended. As the conveyor belt 7 moves, the driving wheel 10 and the rotating rod 8 rotate relative to the conveyor belt 7, and the product at the lower end of the hanging hook 9 continuously rotates when entering the spray box 1, and then the one-way spraying mechanism is used to realize the spraying operation of the product. The spraying operation of the workpiece mainly utilizes the existing powder electrostatic spraying technology, which is the existing technology. Its main working principle is to spray the powder coating to the surface of the workpiece through the spray pipe 16, and at the same time, the spray pipe 16 is connected to the high-voltage negative electricity, and the workpiece is grounded to form a positive electrode, thereby forming a high-voltage electrostatic field between the spray pipe 16 and the workpiece. When the powder particles are sprayed from the spray gun mouth through the discharge area, due to the electrostatic induction and the electric field, the powder particles are negatively charged and adsorbed to the positively charged workpiece surface under the action of electrostatic attraction; for parts with more complex structures, this device can effectively avoid omissions and thus improve product quality. During the spraying process, the vacuum cleaner 19 works, and the paint floating in the spray box 1 is attracted through the dust suction hole 17 on the upper side wall of the bottom support box 2, and collected in the dust collecting chamber.

Claims

1. A device for eliminating static electricity in powder spraying, comprising a spray box (1), characterized in that: The spray box (1) is provided with an opening at the lower end thereof, the lower end of the spray box (1) is fixedly connected to a bottom support box (2), a spray mechanism is provided at the front side of the spray box (1), a dust collecting mechanism is provided at the inner side of the bottom support box (2), a material inlet (3) is provided at the left side wall of the spray box (1), a material outlet (4) is provided at the right side wall of the spray box (1), a limited movable track (6) is provided at the inner side of the spray box (1), and the upper surface of the limited movable track (6) is respectively connected to the material inlet (3) on the left and right sides thereof. ) and the upper inner wall of the discharge port (4); the lower end of the limit movable track (6) is slidably connected to a conveyor belt (7); the outside of the conveyor belt (7) is connected to a driving mechanism; the lower end of the conveyor belt (7) is rotatably connected to a rotating rod (8); the lower end of the rotating rod (8) is fixedly connected to a hanging hook (9); the rotating rod (8) is fixedly connected to a driving wheel (10); the peripheral surface of the driving wheel (10) is provided with an anti-skid groove (11); and the rear side of the conveyor belt (7) is provided with a rotating mechanism; The rotating mechanism comprises a driving electric push rod (25), a connecting plate (27) and an abutment plate (28); the driving electric push rod (25) is fixed at the upper end of the spray box (1); the output end of the driving electric push rod (25) is fixedly connected with a propulsion rod (26); the propulsion rod (26) is L-shaped; the front end of the propulsion rod (26) passes through the rear wall of the spray box (1) and is fixedly connected to the rear wall of the connecting plate (27); the abutment plate (28) is located on the front side of the connecting plate (27); an abutment groove (29) is provided at the front end of the abutment plate (28); the abutment groove (29) is located directly behind the driving wheel (10); and the left and right ends of the abutment groove (29) are both inclined toward the rear.

2. A powder electrostatic spraying device according to claim 1, characterized in that: The rear side ends of the abutment plate (28) are symmetrically fixedly connected to limit slide bars (31) on the left and right sides; the rear side ends of the limit slide bars (31) penetrate the connecting plate (27) and are fixedly connected to a baffle plate (30); a buffer spring (32) and a pressure detection sensor (21) are sleeved on the limit slide bars (31); the pressure detection sensor (21) is fixed to the front side end of the connecting plate (27); the front side end of the buffer spring (32) is fixedly connected to the rear side end of the abutment plate (28); the rear side end of the buffer spring (32) is fixedly connected to the front side end of the pressure detection sensor (21); and the pressure detection sensor (21) is externally connected to a controller.

3. A powder electrostatic spraying device according to claim 1, characterized in that: The dust collecting mechanism comprises a dust collector (19), which is fixed on the inner side of the bottom support box (2). A partition plate (18) is arranged on the inner side of the bottom support box (2). The partition plate (18) is arranged parallel to the upper side wall of the bottom support box (2). The outer end of the partition plate (18) is fixedly connected to the inner side wall of the bottom support box (2). A plurality of dust collecting holes (17) are provided on the upper side wall of the bottom support box (2). A partition plate (22) is arranged below the partition plate (18). The upper end of the partition plate (22) is fixedly connected to the lower end of the partition plate (18). The lower end of the partition plate (22) is fixedly connected to the lower inner wall of the bottom support box (2). The front and rear ends of the partition plate (22) are respectively The dust collecting chamber is fixedly connected to the inner walls of the front and rear sides of the bottom support box (2); a dust collecting chamber is formed between the partition plate 2 (22), the partition plate 1 (18) and the side wall of the bottom support box (2); a dust suction port (24) is provided on the partition plate 1 (18); the upper end of the partition plate 1 (18) is inclined toward the position of the dust suction port (24); the dust suction port (24) is connected to the dust collecting chamber; the dust collector (19) is located on the side of the partition plate 2 (22) away from the dust collecting chamber; the input end of the dust collector (19) passes through the partition plate 2 (22) and is connected to the dust collecting chamber; the output end of the dust collector (19) passes through the side wall of the bottom support box (2) and extends to the outside of the bottom support box (2); a filter screen (23) is provided inside the dust collecting chamber.

4. A powder electrostatic spraying device according to claim 1, characterized in that: The spraying mechanism comprises a protective frame (12), wherein the protective frame (12) is fixed on the front outer wall of the spray box (1), and the inner side of the protective frame (12) is slidably connected to a lifting plate (14). A plurality of limiting slideways (15) are provided on the front side wall of the spray box (1), and a plurality of spray pipes (16) are fixedly connected to the rear side end of the lifting plate (14). The end of the spray pipe (16) away from the lifting plate (14) passes through the limiting slideway (15) and extends to the inner side of the spray box (1). The spray pipe (16) is externally connected to a powder feeding device. A multi-stage electric push rod (13) is fixedly connected to the lower inner wall of the protective frame (12), and the output end of the multi-stage electric push rod (13) passes through the lower side wall of the protective frame (12) and is fixedly connected to the lower end of the lifting plate (14).

5. The device for eliminating static electricity of powder spraying according to claim 1, characterized in that: Cleaning brushes (5) are provided on the inner walls at both the front and rear sides of the feed inlet (3).

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