Electrostatic adsorption type water-based paint circulating spraying cabin

Abstract

The invention provides an electrostatic adsorption type water-based paint circulating spraying cabin, and relates to the field of water-based paint spraying, the electrostatic adsorption type water-based paint circulating spraying cabin comprises a spraying cabin, a spraying operation chamber with an outward opening is arranged in the spraying cabin, a lifting working platform capable of lifting and moving is arranged in the spraying operation chamber, and an electrostatic generator is fixedly arranged at the top end of the lifting working platform; and an electrostatic adsorption tray is fixedly arranged at the top end of the electrostatic generator. Through the synergistic effect of the electrostatic adsorption tray and the electrostatic generator, an electrostatic field is uniformly attached to the surface of a workpiece, electrified paint mist particles are accurately adsorbed, the uniformity of a paint film is remarkably improved, the over-spraying and sagging phenomena are reduced, and the device is particularly suitable for fine spraying of workpieces with complex curved surfaces; the three-dimensional data of the workpiece are collected in real time through the laser contour scanner, the central controller dynamically adjusts the spraying path and parameters, intelligent operation is achieved, material waste is reduced, and the spraying qualification rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of water-based paint spraying, in particular to an electrostatic adsorption type water-based paint circulating spraying cabin. Background Art

[0002] Traditional air spraying technology uses compressed air to atomize paint, but it suffers from low paint utilization and severe paint mist pollution. To improve the working environment, expensive dust-free workshops are required, and workpiece surfaces are prone to surface defects caused by water and air stains.

[0003] Although electrostatic spraying technology can improve the adhesion rate of paint through electric field force, traditional equipment has problems such as insufficient surface gloss of the workpiece, complex equipment, high investment cost, and it is difficult to solve the problem of conductivity adaptation of water-based paint. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides an electrostatic adsorption type water-based paint circulation spraying cabin, which solves the problems raised in the above background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electrostatic adsorption type water-based paint circulation spraying cabin, including a spraying cabin, a spraying operation room opening outward is provided in the spraying operation room, a lifting work platform that can be raised and lowered is provided in the spraying operation room, an electrostatic generator is fixed on the top of the lifting work platform, an electrostatic adsorption tray is fixed on the top of the electrostatic generator, the electrostatic adsorption tray is disc-shaped, a workpiece lifting groove opening upward is provided in the electrostatic adsorption tray, the workpiece lifting groove is used to lift the workpiece for water-based paint spraying, a spraying machine arm base is fixed on the top of the spraying operation room, a spray gun is installed at the bottom of the spraying machine arm base, a nozzle is installed at the lower end of the spray gun, a support base is fixed on the bottom of the spraying operation room, and an airflow processor is installed on the top of the support base.

[0008] Preferably, two parallel lifting guide rails are fixedly provided on both sides of the inner wall of the spraying operation chamber, and the lifting work platform is slidably connected to the lifting guide rails on both sides, and plays a lifting guide role through the lifting guide rails.

[0009] Preferably, two hydraulic lifters are fixedly provided on both sides of the inner wall of the spraying operation room and below the lifting work platform. The hydraulic lifters on both sides are symmetrically arranged, and a telescopic rod that can be telescopically moved is provided on the top of the hydraulic lifter.

[0010] Preferably, a lifting connecting rod is installed and connected to the top of the telescopic rod, and an elastic shock-absorbing connecting piece is installed and connected to the top of the lifting connecting rod and the lifting work platform, and the elastic shock-absorbing connecting piece has the effect of shock-absorbing and stabilizing the lifting.

[0011] Preferably, an air flow fan is installed on the side of the support base, a cyclone separator shell is fixedly provided on the top of the air flow processor, a three-stage concentric cyclone separator inner tube is provided in the cyclone separator shell, and an air flow transmission pipe is installed and connected to the top of the three-stage concentric cyclone separator inner tube.

[0012] Preferably, an air pressure control valve is fixedly provided above one side wall of the spraying operation room and behind the spray gun, the air pressure control valve is connected to the other end of the air flow transmission pipe, and an air flow pipe is provided between the air pressure control valve and the spray gun.

[0013] Preferably, signal transmission brackets are fixedly provided on both sides of the top of the spraying operation room, and the signal transmission brackets on both sides are located on both sides of the base of the spraying robot arm and are symmetrically arranged. A signal connector is fixedly provided on the top of the spraying cabin and directly above the signal transmission bracket, and the signal connector plays the role of signal transmission.

[0014] Preferably, a central controller is fixedly provided on the top of the spray cabin, and the central controller has a built-in control system, which is connected to the signal data of the signal connector.

[0015] Preferably, a robotic arm is installed at the bottom of the spraying robot arm base, an electrostatic spray head is installed at the bottom of the robotic arm, and the electrostatic spray head is installed and connected to the top of the spray gun.

[0016] Preferably, two supporting shafts are fixedly provided on one side of the front end of the spray cabin, and the outer end surface of the supporting shaft on that side is rotatably connected to a protective cabin door, an observation glass is provided on the top of the protective cabin door, and a self-locking device is fixed on one side of the protective cabin door, and the self-locking device has the effect of closing and self-locking.

[0017] (3) Beneficial effects

[0018] The present invention provides an electrostatic adsorption type water-based paint circulation spraying cabin. It has the following beneficial effects:

[0019] 1. The present invention uses the synergistic effect of the electrostatic adsorption tray and the electrostatic generator to evenly adhere the electrostatic field to the surface of the workpiece, so that the charged paint mist particles are accurately adsorbed, significantly improving the uniformity of the paint film, reducing overspray and sagging, and is particularly suitable for fine spraying of complex curved workpieces.

[0020] 2. The present invention uses a laser profile scanner to collect three-dimensional data of the workpiece in real time, and the central controller dynamically adjusts the spraying path and parameters to achieve intelligent operation, reduce material waste, and improve the spraying qualification rate.

[0021] 3. The present invention adopts a combined design of a hydraulic lifter and an elastic shock-absorbing connector to eliminate vibration and deflection during the lifting process, ensure the positioning accuracy of the workpiece, and adapt to high-precision spraying requirements, such as automotive parts, aerospace components, etc., which have strict requirements on film thickness consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0023] Figure 2 This is the main view of the appearance structure of the present invention;

[0024] Figure 3 This is a front view of the appearance structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 Cross-sectional view in the AA direction

[0026] Figure 5 A top view of the appearance structure of the present invention;

[0027] Figure 6 For the present invention Figure 3 An enlarged structural diagram of the base components of the spraying robot arm.

[0028] Figure: 101, spraying cabin; 102, observation glass; 104, self-locking device; 105, support shaft; 106, protective door; 107, hydraulic lifter; 108, air flow processor; 109, spraying operation room; 110, support base; 111, signal connector; 112, central controller; 113, lifting rail; 114, lifting work platform; 115, air flow fan; 116, telescopic rod; 117, lifting connecting rod; 119, static electricity generator Device; 120, electrostatic adsorption tray; 121, spray gun; 122, laser profile scanner; 123, signal transmission bracket; 124, spray robot arm base; 125, robotic arm; 126, electrostatic spray head; 127, air flow pipe; 128, air pressure control valve; 129, air flow transmission pipe; 130, cyclone separator housing; 131, three-stage concentric cyclone separator inner tube; 132, nozzle; 133, workpiece lifting groove; 134, elastic shock-absorbing connector. DETAILED DESCRIPTION

[0029] The embodiment of the present invention provides an electrostatic adsorption type water-based paint circulation spraying cabin, such as Figure 1-6As shown, it includes a spraying cabin 101, a spraying operation room 109 with an opening facing outward is provided in the spraying operation room 109, a lifting work platform 114 that can be raised and lowered is provided in the spraying operation room 109, an electrostatic generator 119 is fixedly provided on the top of the lifting work platform 114, an electrostatic adsorption tray 120 is fixedly provided on the top of the electrostatic generator 119, the electrostatic adsorption tray 120 is disc-shaped, and a workpiece lifting groove 133 with an opening facing upward is provided in the electrostatic adsorption tray 120, the workpiece lifting groove 133 is used to lift the workpiece for spraying water-based paint, a spraying robot arm base 124 is fixedly provided on the top of the spraying operation room 109, a spraying gun 121 is installed at the bottom of the spraying robot arm base 124, a nozzle 132 is installed at the lower end of the spraying gun 121, a support base 110 is fixedly provided at the bottom of the spraying operation room 109, and an airflow processor 108 is installed on the top of the support base 110.

[0030] It should be further explained that a spider-web-shaped groove is provided in the workpiece lifting groove 133, an electrostatic generator is provided in the electrostatic generator 119, an adjustable electrode is provided in the electrostatic generator 119, and the electrostatic adsorption tray 120 is made of conductive material. The electrostatic electrode generated by the electrostatic generator 119 is output to the surface of the lifted painted workpiece through the lifting and conductive transfer of the electrostatic adsorption tray 120.

[0031] Furthermore, two parallel lifting rails 113 are fixedly provided on both sides of the inner wall of the spraying operation room 109, and the lifting work platform 114 is slidably connected to the lifting rails 113 on both sides, and plays a lifting guide role through the lifting rails 113.

[0032] Furthermore, two hydraulic lifters 107 are fixedly installed on both sides of the inner wall of the spraying operation room 109 and below the lifting work platform 114. The hydraulic lifters 107 on both sides are symmetrically arranged, and a telescopic rod 116 that can be telescopically moved is provided at the top of the hydraulic lifter 107.

[0033] It should be further explained that the hydraulic lifter 107 realizes the lifting function based on the pressure change of the hydraulic oil. Specifically, when the hydraulic oil is pumped into the cylinder of the hydraulic lifter 107, the telescopic rod 116 extends upward. Conversely, when the hydraulic oil is discharged from the cylinder, the telescopic rod 116 also retracts.

[0034] Furthermore, a lifting link 117 is installed on the top of the telescopic rod 116, and an elastic shock-absorbing connector 134 is installed on the top of the lifting link 117 and the lifting work platform 114. The elastic shock-absorbing connector 134 has the effect of shock-absorbing and stabilizing the lifting.

[0035] It should be further explained that the elastic shock-absorbing connector 134 is an elastic shock-absorbing connector that absorbs energy through material deformation to achieve multi-dimensional vibration suppression. Specifically, the elastic shock-absorbing connector 134 is made of a high-damping rubber composite material, and a coil spring group is nested inside to form a double buffer structure, which absorbs horizontal vibrations through radial deformation of the rubber layer.

[0036] It is worth further explaining that when the hydraulic lifter 107 starts to lift, the lifting link 117 is driven to move up and down by the extension and retraction of the telescopic rod 116, and the elastic shock-absorbing connector 134 performs a stable lifting work, thereby stably lifting and moving the lifting work platform 114 up and down.

[0037] Furthermore, an air flow fan 115 is installed on the side of the support base 110, and a cyclone separator shell 130 is fixed on the top of the air flow processor 108. A three-stage concentric cyclone separator inner tube 131 is provided in the cyclone separator shell 130, and an air flow transmission pipe 129 is installed and connected to the top of the three-stage concentric cyclone separator inner tube 131.

[0038] It should be further explained that the inner tube 131 of the three-stage concentric cyclone separator is equipped with three concentrically arranged cyclone separation units. Each unit is responsible for further purifying the airflow, separating particles or gases from the airflow through the cyclonic effect. When the airflow blower 115 is activated, it can form an airflow that is input into the inner tube 131 of the three-stage concentric cyclone separator. The top of the inner tube 131 of the three-stage concentric cyclone separator is an exhaust port, and the side of the airflow processor 108 is provided with an air inlet. When the airflow processor 108 is activated, it can efficiently separate particles or gases from the airflow, improve spraying quality, and reduce environmental pollution. The wall of the inner tube 131 of the three-stage concentric cyclone separator is used to collect particles or gases thrown toward the wall by centrifugal force. These particles or gases will slide or rise along the wall and eventually be discharged through the ash discharge port. The exhaust port is located on the other side of the airflow processor 108.

[0039] Furthermore, an air pressure control valve 128 is fixedly provided above one side wall of the spraying chamber 109 and behind the spray gun 121. The air pressure control valve 128 is connected to the other end of the air flow transmission pipe 129, and an air flow pipe 127 is provided between the air pressure control valve 128 and the spray gun 121.

[0040] Furthermore, signal transmission brackets 123 are fixed on both sides of the top of the spraying operation room 109. The signal transmission brackets 123 on both sides are located on both sides of the spraying robot arm base 124 and are symmetrically arranged. A signal connector 111 is fixed on the top of the spraying cabin 101 and directly above the signal transmission bracket 123. The signal connector 111 plays a role in signal transmission.

[0041] It should be further explained that the laser contour scanner 122 is facing the top of the electrostatic adsorption tray 120. The laser contour scanner 122 can scan and detect the surface contour information of the workpiece supported on the electrostatic adsorption tray 120 in real time. Before the spraying operation begins, the laser contour scanner 122 performs a full-scale scan on the workpiece to obtain the three-dimensional shape data of the workpiece.

[0042] Furthermore, a central controller 112 is fixedly provided on the top of the spray cabin 101 . The central controller 112 has a built-in control system and is connected to the signal connector 111 for signal data.

[0043] Furthermore, a robotic arm 125 is installed at the bottom of the spraying robot arm base 124 , an electrostatic spraying head 126 is installed at the bottom of the robotic arm 125 , and the electrostatic spraying head 126 is installed and connected to the top of the spraying gun 121 .

[0044] It should be further explained that the electrostatic spray head 126 generates static electricity with an opposite electrode to the electrostatic generator 119, so that the paint material entering the paint material pipeline connected to the bottom spray gun 121 is electrostatically charged, which facilitates subsequent uniform spraying work.

[0045] Furthermore, two supporting shafts 105 are fixedly provided on one side of the front end of the spray cabin 101, and the outer end surface of the supporting shaft 105 on that side is rotatably connected to a protective cabin door 106, and an observation glass 102 is provided on the top of the protective cabin door 106. A self-locking device 104 is fixed on one side of the protective cabin door 106, and the self-locking device 104 has the effect of closing and self-locking.

[0046] It should be further explained that when the protection door 106 is fully rotated to the front end of the spray cabin 101 and the spray operation room 109 is closed, the self-locking device 104 can promptly perform the self-locking function to achieve the effect of installation protection.

[0047] When using this solution, the spray cabin 101 is first moved as a whole to the working position to ensure that the spray cabin is placed stably. Then, the operator places the workpiece to be sprayed on the top of the electrostatic adsorption tray 120. The operator rotates the protective cabin door 106 to completely cover the front end of the spray cabin 101, closes the spraying operation room 109, and uses the closed and self-locking function of the self-locking device 104 to ensure that the spray cabin remains sealed during the operation, prevents paint mist from leaking, and ensures the safety and cleanliness of the working environment.

[0048] Next, the hydraulic lifter 107 is started, and the hydraulic oil is pumped into the cylinder, pushing the telescopic rod 116 upward. The telescopic rod 116 is connected to the lifting work platform 114 through the lifting link 117 and the elastic shock-absorbing connector 134. The elastic shock-absorbing structure of the elastic shock-absorbing connector 134 effectively absorbs the vibration generated during the lifting process, ensuring that the lifting work platform 114 is lifted and lowered smoothly. The lifting and lowering of the lifting work platform 114 drives the electrostatic generator 119 and the electrostatic adsorption tray 120 at its top to move, thereby adjusting the height of the workpiece supported in the workpiece lifting groove 133, so that the workpiece is in the optimal spraying position.

[0049] Subsequently, the laser profile scanner 122 activates, performing a full-scale scan of the workpiece held on the electrostatic adsorption tray 120. It accurately captures the workpiece's three-dimensional shape data and transmits this data to the central controller 112, which analyzes and processes the received data, automatically planning the optimal spraying path and parameters to ensure that the water-based paint is evenly and accurately applied to the workpiece surface.

[0050] Next, the spray gun 121 is started, and the spray material is transported to the electrostatic spray head 126 through a pipeline. Inside the electrostatic spray head 126, the material carries an electrostatic charge with an electrode opposite to that of the electrostatic generator 119, and is then sprayed out from the nozzle 132 at the bottom of the spray gun 121 to form fine paint mist particles. At the same time, the electrostatic generator inside the electrostatic generator 119 continuously generates an electrostatic field, and through the adjustable electrode and the conductive material electrostatic adsorption tray 120, the electrostatic electrode is stably output to the surface of the supported workpiece. Under the action of the electrostatic field, the charged paint mist particles are evenly adsorbed to the surface of the workpiece to form a high-quality coating.

[0051] During the spraying process, the air flow fan 115 is started and forms an air flow which is input into the inner tube 131 of the three-stage concentric cyclone separator. When the air flow passes through the inner tube 131 of the three-stage concentric cyclone separator, a strong rotation motion is formed. The paint mist particles are thrown to the wall of the inner tube 131 of the three-stage concentric cyclone separator under the action of centrifugal force, and slide down along the wall and are finally discharged through the ash discharge port. The purified air flow is discharged from the exhaust port at the top of the inner tube 131 of the three-stage concentric cyclone separator, passes through the air flow transmission pipe 129 and is controlled by the air pressure control valve 128. The air flow enters the spray gun 121 through the air flow pipe 127, thereby improving the spraying efficiency and reducing environmental pollution.

[0052] When the spraying operation is completed, the spraying robot spray gun 121 and the air circulation system are turned off, the operator releases the self-locking function of the self-locking device 104, rotates the protective hatch 106 to open the hatch, and finally takes out the workpiece that has been sprayed from the workpiece lifting groove 133 and proceeds to the next step of processing or inspection.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electrostatic adsorption type water-based paint circulation spraying cabin, comprising a spraying cabin (101), characterized in that: The spraying cabin (101) is provided with a spraying operation room (109) with an opening facing outward, and the spraying operation room (109) is provided with a lifting work platform (114), and an electrostatic generator (119) is fixedly provided on the top of the lifting work platform (114), and an electrostatic adsorption tray (120) is fixedly provided on the top of the electrostatic generator (119), and a workpiece lifting groove (133) opening upward is provided in the electrostatic adsorption tray (120), and a spraying machine arm base (124) is fixedly provided on the top of the spraying operation room (109), and a spraying gun (121) is installed at the bottom of the spraying machine arm base (124), and a nozzle (132) is installed at the lower end of the spraying gun (121), and a support base (110) is fixedly provided at the bottom of the spraying operation room (109), and an airflow processor (108) is installed on the top of the support base (110).

2. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 1, characterized in that: Two parallel lifting guide rails (113) are fixedly provided on both sides of the inner wall of the spraying operation room (109); the lifting work platform (114) is slidably connected to the lifting guide rails (113) on both sides and plays a lifting guide role through the lifting guide rails (113).

3. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 2, characterized in that: Two hydraulic lifters (107) are fixedly provided on both sides of the inner wall of the spraying operation room (109) and below the lifting work platform (114). The hydraulic lifters (107) on both sides are symmetrically arranged, and a telescopic rod (116) that can be telescopically moved is provided at the top of the hydraulic lifter (107).

4. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 3, characterized in that: The top end of the telescopic rod (116) is connected to a lifting connecting rod (117), and the top end of the lifting connecting rod (117) and the lifting working platform (114) are connected to an elastic shock-absorbing connecting piece (134).

5. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 1, characterized in that: An air flow fan (115) is installed on the side of the support base (110), a cyclone separator housing (130) is fixedly provided on the top of the air flow processor (108), a three-stage concentric cyclone separator inner tube (131) is provided in the cyclone separator housing (130), and an air flow transmission pipe (129) is installed and connected to the top of the three-stage concentric cyclone separator inner tube (131).

6. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 5, characterized in that: An air pressure control valve (128) is fixedly provided above one side wall of the spraying operation room (109) and behind the spraying gun (121). The air pressure control valve (128) is connected to the other end of the air flow transmission pipe (129). An air flow pipe (127) is provided between the air pressure control valve (128) and the spraying gun (121).

7. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 1, characterized in that: Signal transmission brackets (123) are fixedly provided on both sides of the top of the spraying operation room (109), and the signal transmission brackets (123) on both sides are located on both sides of the spraying machine arm base (124) and are symmetrically arranged. A signal connector (111) is fixedly provided on the top of the spraying cabin (101) and directly above the signal transmission brackets (123), and the signal connector (111) plays a role in signal transmission.

8. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 7, characterized in that: A central controller (112) is fixedly provided on the top of the spraying cabin (101), and the central controller (112) has a built-in control system and is connected to the signal connector (111) for signal data.

9. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 1, characterized in that: A mechanical arm (125) is installed at the bottom of the spraying machine arm base (124), an electrostatic spraying head (126) is installed at the bottom of the mechanical arm (125), and the electrostatic spraying head (126) is installed and connected to the top of the spraying gun (121).

10. The electrostatic adsorption water-based paint circulation spraying cabin according to claim 1, characterized in that: Two supporting shafts (105) are fixedly provided on one side of the front end of the spraying cabin (101), and a protective cabin door (106) is rotatably connected to the outer end surface of the supporting shaft (105) on that side. An observation glass (102) is provided on the top of the protective cabin door (106). A self-locking device (104) is fixedly provided on one side of the protective cabin door (106), and the self-locking device (104) has the effect of sealing and self-locking.

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