Workpiece surface uniform spraying device

Abstract

The utility model discloses a workpiece surface uniform spraying device which comprises a workpiece clamping assembly and a spraying assembly, the spraying assembly comprises a lifting limiting frame and a lifting connecting arm, a rotating connecting arm is fixedly installed on the front face of the lifting connecting arm, the bottom end of the rotating connecting arm is rotationally connected with a rotating connecting plate, and the rotating connecting plate is fixedly connected with the lifting limiting frame. A plurality of high-pressure atomizing nozzles are fixedly mounted on the front face of the rotating connecting plate, an extrusion bottom plate is fixedly connected to the top of the front face of the rotating connecting plate, and an extrusion threaded rod is arranged on the upper surface of the extrusion bottom plate. The extrusion threaded rod is matched with the extrusion bottom plate, the deflection angle of the rotating connecting plate is controlled, then the spraying direction of the high-pressure atomization spray head is controlled, the high-pressure atomization spray head sprays downwards in an inclined mode, in the spraying process of paint, redundant paint can be continuously extruded downwards, paint liquid drops are prevented from being gathered on the surface of a workpiece, and the spraying quality of the paint is improved. And the spraying uniformity of the surface of the workpiece is improved, and the spraying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to a device for uniformly spraying the surface of a workpiece. Background Art

[0002] In the prior art, spraying is a coating method that uses a spray gun or a disc atomizer to disperse the paint into uniform and fine droplets with the help of pressure or centrifugal force, and applies it to the surface of the object to be coated. A sprayer is a coating equipment that disperses the paint into mist and sprays it on the surface of the object to be coated. It is widely used in the surface treatment process of mechanical parts.

[0003] After searching, the Chinese patent application No. 202121022696.X discloses a uniform spraying device for surface treatment, including a base, a control cabinet group is installed under the base, a waste liquid recovery tank is arranged on the upper surface of the base, brackets are installed around the waste liquid recovery tank, and there are four brackets, a bearing mesh plate is arranged above the bracket, and the four corners of the bearing mesh plate are respectively fixedly connected to the four brackets, belt guides are arranged on both sides above the base, and the lower parts of both ends of the belt guides are fixedly connected to the base through pillars, a nozzle carrier is installed between the belt guides on both sides, a spray mechanism is installed on the front end surface of the nozzle carrier, and there are five spray mechanisms, and the five spray mechanisms are equidistantly distributed; an electromagnetic valve is installed inside the spray mechanism, a feed joint is arranged at the front end of the spray mechanism, and a nozzle is installed at the lower end of the spray mechanism.

[0004] The above patent has the following shortcomings: the device installs the nozzle carrier between two belt guides. During spraying, the belt guide can drive the spray mechanism to move along the guide direction with the nozzle carrier to achieve a reciprocating spraying effect, making the coating more uniform and smooth; however, in actual use, the nozzle is vertically downward and aimed at the surface of the workpiece, and the atomized paint diffuses outward in a cone shape. However, during the diffusion of the paint, the farther away from the center line, the smaller the spraying pressure. When spraying perpendicular to the workpiece surface, droplets are easily gathered at the spray hole of the nozzle, which makes it easy for liquid to accumulate in the spray center, resulting in uneven spraying on the workpiece surface and affecting the spraying effect. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a device for uniformly spraying the surface of a workpiece.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The top end of the rotating shaft is threadedly connected to the top of the rotating shaft, and the bottom end of the rotating shaft is rotatably connected to the rotating shaft, and a plurality of high-pressure atomizing nozzles are fixedly installed on the front of the rotating shaft, and an extrusion bottom plate is fixedly connected to the top of the front of the rotating shaft, and an extrusion threaded rod is arranged on the upper surface of the extrusion bottom plate, and a threaded connection tube is threadedly sleeved on the outer wall of the extrusion threaded rod, and the threaded connection tube is fixed to the rotating connection arm; the workpiece clamping assembly comprises a mounting bottom plate and a driving motor, a supporting bottom plate is fixedly installed on the upper surface of the mounting bottom plate, a lower clamping plate is rotatably installed on the back side of the supporting bottom plate, and a connecting upper frame is fixedly installed on the top of the front side of the supporting bottom frame, an adjusting threaded rod is threadedly installed on the top of the back side of the connecting upper frame, and an upper clamping plate is rotatably installed on the bottom end of the adjusting threaded rod.

[0008] As a further solution of the utility model: a paint storage box is arranged on the back of the lifting limit frame, and a paint supply pump is fixedly installed on the top of the paint storage box.

[0009] As a further solution of the utility model: spray diversion pipes are fixedly installed at both ends of the lifting connecting arm, one end of the two spray diversion pipes is connected to a plurality of high-pressure atomizing nozzles, and the other end is connected to a paint supply pump.

[0010] As a further solution of the utility model: a lifting threaded rod is threadedly installed on the middle part of the lifting connection arm, and a lifting motor is transmission-connected to the top end of the lifting threaded rod.

[0011] As a further solution of the utility model: both ends of the lifting connection arm are slidably connected to the limiting guide rod, and both ends of the limiting guide rod are fixed to the lifting limiting frame.

[0012] As a further solution of the utility model: a plurality of mounting slide arms are fixedly mounted on the bottom end of the mounting base plate, and both ends of the plurality of mounting slide arms are fixedly connected with connecting sliders.

[0013] As a further solution of the utility model: the two connecting sliding blocks are both slidably connected to the limiting slide rail, and the bottom end of the limiting slide rail is fixedly installed with a bearing base plate.

[0014] As a further solution of the utility model: a paint collecting box is fixedly connected to the upper surface of the bearing bottom plate, and the paint collecting box is arranged between two limiting slide rails.

[0015] Compared with the prior art, the utility model provides a device for uniformly spraying a workpiece surface, which has the following beneficial effects:

[0016] 1. The device for uniformly spraying the workpiece surface controls the deflection angle of the rotating connecting plate by cooperating with the extruding threaded rod and the extruding bottom plate, and then controls the spraying direction of the high-pressure atomizing nozzle, so that the high-pressure atomizing nozzle sprays downward at an angle, so that during the spraying process, excess paint can be continuously squeezed downward to avoid the accumulation of paint droplets on the workpiece surface, thereby improving the uniformity of the spraying on the workpiece surface and improving the spraying effect.

[0017] 2. The device for uniformly spraying the workpiece surface clamps the workpiece by means of the cooperation of the upper clamping plate and the lower clamping plate, and cooperates with the drive motor, pulley and other structures. After completing the spraying work on one surface of the workpiece, the spraying work on the next surface can be quickly carried out, thereby improving the efficiency and effect of the workpiece surface spraying.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure diagram of the overall assembly of the utility model Figure 1 ;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 The three-dimensional structure diagram of the overall assembly of the utility model Figure 2 .

[0022] In the figure: 1. Load-bearing base plate; 2. Paint collecting box; 3. Limiting slide rail; 4. Connecting slider; 5. Installing slide arm; 6. Installing base plate; 7. Driving motor; 8. Supporting base frame; 9. Lower clamping plate; 10. Connecting upper frame; 11. Stabilizing side frame; 12. Adjusting threaded rod; 13. Upper clamping plate; 14. Lifting and limiting frame; 15. Lifting motor; 16. Motor bracket; 17. Lifting and limiting threaded rod; 18. Lifting connecting arm; 19. Limiting guide rod; 20. Connecting fixed rod; 21. Rotating connecting arm; 22. Rotating connecting plate; 23. High-pressure atomizing nozzle; 24. Extruding base plate; 25. Threaded connecting cylinder; 26. Extruding threaded rod; 27. Spraying diversion pipe; 28. Paint storage box; 29. ​​Paint supply pump. DETAILED DESCRIPTION

[0023] 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 of the embodiments.

[0024] A device for uniformly spraying a workpiece surface, such as Figures 1 to 3As shown, it includes: a workpiece clamping assembly and a spraying assembly, the spraying assembly is arranged on the back of the workpiece clamping assembly, and the bottom ends of the workpiece clamping assembly and the spraying assembly are provided with a bearing base plate 1, the top of the bearing base plate 1 is integrally formed with a paint collecting box 2, the bottom inner wall of the paint collecting box 2 is arranged as a downwardly concave semi-cylindrical groove, and the lowest end of the groove is provided with a confluence groove, which runs through the front side of the bearing base plate 1 to facilitate the centralized collection of excess paint.

[0025] The workpiece clamping assembly includes a mounting base plate 6 and a driving motor 7. The driving motor 7 is fixedly mounted on the upper surface of the mounting base plate 6, and a plurality of mounting slide arms 5 are fixedly mounted on the lower surface of the mounting base plate 6. Both ends of the mounting slide arms 5 are fixedly connected with connecting slide blocks 4. Both connecting slide blocks 4 are slidably connected with limiting slide rails 3. The two limiting slide rails 3 are arranged on both sides of the paint collection box 2 and are fixed to the supporting base plate 1.

[0026] A supporting base frame 8 is fixedly installed on the upper surface of the mounting base plate 6, a rotating connecting rod is rotatably installed on the back side of the supporting base frame 8, a lower clamping plate 9 is fixedly installed on the top end of the rotating connecting rod, and a pulley 1 is fixedly installed on the bottom end of the rotating connecting rod, a pulley 2 is fixedly installed on the top end of the output shaft of the driving motor 7, and pulley 1 and pulley 2 are connected by belt transmission.

[0027] A connecting frame 10 is fixedly installed on the top of the front side of the supporting base frame 8, an adjusting threaded rod 12 is threadedly installed on the top of the back side of the connecting frame 10, an upper clamping plate 13 is rotatably installed on the bottom end of the adjusting threaded rod 12, and a control handle 1 is fixedly installed on the top end of the adjusting threaded rod 12, and stable side frames 11 are fixedly installed on both sides of the supporting base frame 8 and the connecting frame 10.

[0028] The workpiece that needs to be surface sprayed is clamped between the upper clamping plate 13 and the lower clamping plate 9. According to the actual spraying needs, the second pulley can be driven by the driving motor 7. The second pulley drives the rotating connecting rod through the belt and the first pulley. The rotating connecting rod drives the workpiece to rotate through the lower clamping plate 9 to carry out the spraying treatment on the next side.

[0029] The spraying assembly includes a lifting limit frame 14 and a lifting connecting arm 18. The lifting limit frame 14 is fixedly installed on the upper surface of the bearing base plate 1, and the lifting connecting arm 18 is arranged inside the lifting limit frame 14, and the middle part of the lifting connecting arm 18 is threadedly connected with a lifting threaded rod 17; the bottom end of the lifting threaded rod 17 is rotatably connected to the bottom end of the lifting limit frame 14, and the top end passes through the top of the lifting limit frame 14 and extends upward, and the extended end is connected to the lifting motor 15 through a coupling transmission, and the outer wall of the lifting motor 15 is fixedly installed with a motor bracket 16, and the motor bracket 16 is fixedly installed on the top of the lifting limit frame 14.

[0030] Both ends of the lifting connecting arm 18 are slidably connected to the limit guide rod 19 through a linear bearing. The bottom end of the limit guide rod 19 is fixedly connected to the lifting limit frame 14, and the top end thereof passes through the lifting limit frame 14.

[0031] The front of the lifting connecting arm 18 is equidistantly fixedly connected with a plurality of connecting and fixing rods 20, one end of the plurality of connecting and fixing rods 20 is fixedly installed with a rotating connecting arm 21, the bottom end of the rotating connecting arm 21 is rotatably connected with a rotating connecting plate 22, and the front of the rotating connecting plate 22 is fixedly installed with a plurality of high-pressure atomizing nozzles 23, and the liquid inlet of the high-pressure atomizing nozzle 23 passes through the rotating connecting plate 22 and extends outward.

[0032] The multiple high-pressure atomizing nozzles 23 are arranged in two groups, the multiple high-pressure atomizing nozzles 23 in each group are arranged at equal distances, and the high-pressure atomizing nozzles 23 in the upper and lower groups are arranged at intervals, that is, the projections of the multiple high-pressure atomizing nozzles 23 on the horizontal plane are equidistant.

[0033] The top of the front side of the rotating connecting plate 22 is fixedly connected with an extruded base plate 24, and an extruded threaded rod 26 is provided on the upper surface of the extruded base plate 24. A control handle 2 is fixedly installed on the top of the extruded threaded rod 26, and a threaded connecting tube 25 is threadedly sleeved on the outer wall of the extruded threaded rod 26, and the threaded connecting tube 25 is fixed to the rotating connecting arm 21.

[0034] The extrusion threaded rod 26 is rotated clockwise, and the extrusion threaded rod 26 moves downward to press down the extrusion bottom plate 24, and the extrusion bottom plate 24 drives the bottom end of the rotating connecting plate 22 to deflect away from the paint collecting box 2, such as Figure 1 As shown, when the rotating connecting plate 22 is kept in a vertical state, the high-pressure atomizing nozzle 23 sprays paint toward the front.

[0035] A paint storage box 28 is provided on the back of the lifting limit frame 14 . The paint storage box 28 is fixedly installed on the upper surface of the supporting base plate 1 , and a paint supply pump 29 is fixedly installed on the top of the paint storage box 28 . The paint supply pump 29 extracts paint from the inside of the paint storage box 28 .

[0036] Both ends of the lifting connecting arm 18 are fixed with a spray diversion pipe 27, one end of the two spray diversion pipes 27 is connected to a plurality of high-pressure atomizing nozzles 23 through a connecting pipe, and the other end is connected to a paint supply pump 29 through a three-way connector, and the paint supply pump 29 supplies paint to the plurality of high-pressure atomizing nozzles 23.

[0037] Working principle:

[0038] Please refer to Figures 1 to 3 , assemble the device as shown in the figure;

[0039] First, assemble the workpiece by the upper clamping plate 13 and the lower clamping plate 9 so that the side of the workpiece that needs to be sprayed is aligned with the high-pressure atomizing nozzle 23. Then, according to the needs of use, rotate the extrusion threaded rod 26 clockwise to cause the extrusion bottom plate 24 to drive the rotating connecting plate 22 to deflect, and then drive the high-pressure atomizing nozzle 23 to deflect, so that the spraying direction of the high-pressure atomizing nozzle 23 changes from horizontal to inclined downward; then start the paint supply pump 29 and the lifting motor 15 synchronously, the lifting motor 15 drives the lifting connecting arm 18 to move downward through the lifting threaded rod 17, and the paint supply pump 29 supplies paint to multiple high-pressure atomizing nozzles 23, and the workpiece surface is evenly sprayed from top to bottom.

[0040] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for uniformly spraying a workpiece surface, characterized in that: include: A workpiece clamping assembly and a spraying assembly, wherein the spraying assembly comprises a lifting limit frame (14) and a lifting connecting arm (18), wherein a rotating connecting arm (21) is fixedly mounted on the front of the lifting connecting arm (18), wherein the bottom end of the rotating connecting arm (21) is rotatably connected to a rotating connecting plate (22), wherein a plurality of high-pressure atomizing nozzles (23) are fixedly mounted on the front of the rotating connecting plate (22), and an extrusion bottom plate (24) is fixedly connected to the top of the front of the rotating connecting plate (22), wherein an extrusion threaded rod (26) is arranged on the upper surface of the extrusion bottom plate (24), wherein the outer surface of the extrusion threaded rod (26) is A threaded connection tube (25) is connected to the wall thread sleeve, and the threaded connection tube (25) is fixed to the rotatable connection arm (21); the workpiece clamping assembly comprises a mounting base plate (6) and a driving motor (7); a supporting base frame (8) is fixedly mounted on the upper surface of the mounting base plate (6); a lower clamping plate (9) is rotatably mounted on the back of the supporting base frame (8); a connecting upper frame (10) is fixedly mounted on the top of the front of the supporting base frame (8); an adjusting threaded rod (12) is threadedly mounted on the top of the back of the connecting upper frame (10); and an upper clamping plate (13) is rotatably mounted on the bottom end of the adjusting threaded rod (12).

2. A workpiece surface uniform spraying device according to claim 1, characterized in that: A paint storage box (28) is arranged on the back of the lifting limit frame (14), and a paint supply pump (29) is fixedly installed on the top of the paint storage box (28).

3. A workpiece surface uniform spraying device according to claim 2, characterized in that: Both ends of the lifting connecting arm (18) are fixedly mounted with a spraying shunt pipe (27), one end of the two spraying shunt pipes (27) is connected to a plurality of high-pressure atomizing nozzles (23), and the other end is connected to a paint supply pump (29).

4. A workpiece surface uniform spraying device according to claim 1, characterized in that: A lifting threaded rod (17) is threadedly mounted on the middle portion of the lifting connection arm (18), and a lifting motor (15) is transmission-connected to the top end of the lifting threaded rod (17).

5. The device for uniformly spraying a workpiece surface according to claim 1, characterized in that: Both ends of the lifting connection arm (18) are slidably connected to the limiting guide rod (19), and both ends of the limiting guide rod (19) are fixed to the lifting limiting frame (14).

6. A workpiece surface uniform spraying device according to claim 1, characterized in that: A plurality of mounting slide arms (5) are fixedly mounted on the bottom end of the mounting base plate (6), and both ends of the plurality of mounting slide arms (5) are fixedly connected to connecting slide blocks (4).

7. A workpiece surface uniform spraying device according to claim 6, characterized in that: The two connecting slide blocks (4) are both slidably connected to the limiting slide rail (3), and a bearing base plate (1) is fixedly mounted on the bottom end of the limiting slide rail (3).

8. A workpiece surface uniform spraying device according to claim 7, characterized in that: A paint collection box (2) is fixedly connected to the upper surface of the bearing base plate (1), and the paint collection box (2) is arranged between two limiting slide rails (3).

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