A housing spraying device

Abstract

The utility model relates to a kind of shell spraying devices, belong to spraying equipment technical field, including spraying box, three-axis turntable, spraying mechanical arm, gas collecting hood, cyclone separator, waste gas filter box, coating supply box, three-axis turntable, spraying mechanical arm are set in spraying box, gas collecting hood is set in spraying box, gas collecting hood, cyclone separator, waste gas filter box are sequentially communicated, spraying mechanical arm is provided with spray gun, coating supply box supplies coating to spray gun, cyclone separator is provided with powder collection drawer, three-axis turntable is detachably provided with electric clamp.The utility model, it has solved the problem that open spraying leads to a large number of paint mist, organic solvent directly disperses to workshop or atmosphere, pollutes environment and harms worker's health, closed spraying box and high-efficiency waste gas collection purification system are used, gas collecting hood collects waste gas under negative pressure, cyclone separator removes large-particle paint slag, waste gas filter box deeply purifies VOCs and fine particles, finally standard discharge is achieved through workshop pipeline.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a shell spraying device. Background Technology

[0002] Gateway housings in harsh environments such as humidity, salt spray, and industrial pollution require surface coatings to prevent oxidation, rust, and chemical corrosion, enhance surface hardness, and resist wear and scratches during transportation, installation, and use. Furthermore, gateways used outdoors require UV-resistant, high and low temperature resistant, and rain and snow resistant coatings to prevent chalking, fading, and cracking.

[0003] Spray coating can provide uniform, rich, and diverse colors and gloss levels, enhancing product grade and visual appeal. Currently, gateway casing spray coating mainly relies on manual labor or fixed spray guns, resulting in problems such as uneven coating, missed areas, and paint waste. To improve coating consistency and environmental friendliness, a casing spray coating device is proposed. It adopts a closed spray box and a high-efficiency exhaust gas collection and purification system. The gas collection hood collects exhaust gas under negative pressure, a cyclone separator removes large paint particles, and an exhaust gas filter box deeply purifies VOCs and fine particles. Finally, the exhaust gas is discharged in compliance with standards through the plant pipeline. A three-axis turntable precisely adjusts the workpiece posture, and a robotic arm drives the spray gun to move along a complex trajectory. The two work in tandem to ensure that the spray gun can cover all surfaces of the workpiece at the optimal angle and distance. It is installed using detachable electric clamps and screws. Special clamps are designed for different workpieces and can be quickly installed and removed from the three-axis turntable using screws, enabling rapid production changeover and significantly improving equipment flexibility. Utility Model Content

[0004] This utility model provides a shell spraying device, which solves the problem that open spraying causes a large amount of paint mist and organic solvents to directly escape into the workshop or atmosphere, polluting the environment and endangering workers' health. It also solves the problem that complex gateway shells are difficult to spray evenly through fixed workstations or simple rotation, and are prone to dead corners or uneven thickness. Furthermore, it solves the problem that when frequently changing workpieces of different shapes, the replacement and adjustment of traditional fixtures are time-consuming and labor-intensive, resulting in low equipment utilization.

[0005] The present invention provides the following solution to the above-mentioned technical problems: A shell spraying device includes a spraying box, a three-axis turntable, a spraying robotic arm, a gas collecting hood, a cyclone separator, an exhaust gas filter box, and a paint supply box. The three-axis turntable and the spraying robotic arm are disposed inside the spraying box. The gas collecting hood is disposed inside the spraying box. The gas collecting hood, the cyclone separator, and the exhaust gas filter box are connected in sequence. The spraying robotic arm is equipped with a spray gun. The paint supply box supplies paint to the spray gun. The cyclone separator is equipped with a powder collection drawer. The three-axis turntable is detachably equipped with an electric clamp.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the spray booth is equipped with a sealed door, which has an observation window. The sealed door effectively prevents paint mist, volatile organic solvents, and dust generated during the spraying process from leaking into the working environment, protecting the health of operators and preventing environmental pollution.

[0008] Furthermore, the electric clamp is mounted on the three-axis rotary table with screws. When it is necessary to spray workpieces of different shapes or sizes, the current clamp can be easily disassembled and a special clamp adapted to the new workpiece can be installed, which greatly shortens the production preparation time and improves the applicability of the equipment.

[0009] Furthermore, the exhaust gas filter box is connected to the factory's exhaust gas pipeline, which connects the exhaust gas, which has undergone preliminary treatment by cyclone separation and filter box purification, to the factory's unified exhaust gas treatment system or emission pipeline, ensuring that the final emission meets environmental protection regulations and preventing secondary diffusion of the treated exhaust gas in the workshop. It is integrated with the factory's overall environmental protection facilities to achieve centralized, efficient, and compliant treatment of exhaust gas.

[0010] Furthermore, the exhaust gas filter box includes a filter box body, an exhaust fan, a filter screen, an activated carbon adsorption screen, and a discharge valve. The exhaust fan and discharge valve are located in the filter box body, and the exhaust fan is connected to the factory exhaust gas pipeline. The filter screen and activated carbon adsorption screen are installed in the filter box body with screws. The filter box body is equipped with an inspection door, which can intercept residual larger particles and paint mist. The activated carbon adsorption screen is specifically used to adsorb organic solvents and odors in the exhaust gas, providing exhaust gas purification function.

[0011] Furthermore, the paint supply box includes a paint tank, a stirring motor, a stirring frame, a feeding cylinder, a paint pump, and an electric heater. The stirring motor, feeding cylinder, paint pump, and electric heater are all located in the paint tank. The drive end of the stirring motor is connected to the stirring frame. The stirring motor drives the stirring frame to continuously or intermittently stir the paint to prevent solid components such as pigments and fillers from settling and clumping in the paint tank, thus ensuring the uniformity and stability of the paint concentration, which is crucial for the spraying quality.

[0012] Furthermore, the paint tank has a cylindrical structure with an openable and closable lid on top. The paint tank is equipped with a through-pipe groove, and the liquid extraction pipe of the paint pump is placed in the through-pipe groove and positioned by a clamp. The openable and closable lid on top facilitates the addition of new paint to the paint tank and also facilitates thorough cleaning of the inside of the tank, reducing contamination between different batches or colors of paint.

[0013] This utility model provides a shell spraying device, which has the following advantages:

[0014] 1. This solves the problem of open spraying causing a large amount of paint mist and organic solvents to directly escape into the workshop or atmosphere, polluting the environment and endangering workers' health. It adopts a closed spray box and a high-efficiency waste gas collection and purification system. The gas collection hood collects waste gas under negative pressure, the cyclone separator removes large paint particles, and the waste gas filter box deeply purifies VOCs and fine particles. Finally, the waste gas is discharged in compliance with standards through the factory pipeline.

[0015] 2. It solves the problem that complex gateway shells (especially multi-curved and deep cavity structures) are difficult to uniformly spray by fixed station or simple rotation, which can easily lead to dead corners or uneven thickness. It adopts a three-axis turntable and a spraying robot arm to work together. The three-axis turntable precisely adjusts the workpiece posture, and the robot arm drives the spray gun to move along a complex trajectory. The two work together to ensure that the spray gun can cover all surfaces of the workpiece at the best angle and distance.

[0016] 3. This solution addresses the problems of time-consuming and labor-intensive fixture changes and adjustments, resulting in low equipment utilization when frequently changing workpieces of different shapes. It utilizes detachable electric fixtures and screw installation. Dedicated fixtures are designed for different workpieces, allowing for quick mounting and dismounting on the three-axis rotary table via screws, enabling rapid production changeovers and significantly improving equipment flexibility.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a preferred understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a shell spraying device provided in an embodiment of the present invention;

[0020] Figure 2 A front view of a shell spraying device provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a paint supply box in a shell spraying device according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the exhaust gas filter box in a shell spraying device according to an embodiment of the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Spraying box; 2. Three-axis turntable; 3. Spraying robot arm; 4. Gas collection hood; 5. Cyclone separator; 6. Exhaust gas filter box; 601. Filter box body; 602. Exhaust fan; 603. Filter screen; 604. Activated carbon adsorption screen; 605. Discharge valve; 606. Inspection door; 7. Paint supply box; 701. Paint box; 702. Mixing motor; 703. Mixing rack; 704. Feeding cylinder; 705. Paint pump; 706. Electric heater; 8. Spray gun; 9. Powder collection drawer; 10. Sealed door; 11. Electric clamp; 12. Factory exhaust gas pipeline. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figure 1-4 As shown, a shell spraying device includes a spraying box 1, a three-axis turntable 2, a spraying robotic arm 3, a gas collection hood 4, a cyclone separator 5, an exhaust gas filter box 6, and a paint supply box 7. The three-axis turntable 2 and the spraying robotic arm 3 are disposed inside the spraying box 1, and the gas collection hood 4 is disposed inside the spraying box 1. The gas collection hood 4, the cyclone separator 5, and the exhaust gas filter box 6 are connected in sequence. The spraying robotic arm 3 is equipped with a spray gun 8, and the paint supply box 7 supplies paint to the spray gun 8. The cyclone separator 5 is equipped with a powder collection drawer 9, and the three-axis turntable 2 is detachably equipped with an electric clamp 11.

[0028] Preferably, the spray booth 1 is equipped with a sealed door 10, and the sealed door 10 is equipped with an observation window. The sealed door effectively prevents paint mist, volatile organic solvents and dust generated during the spraying process from leaking into the working environment, protecting the health of operators and preventing environmental pollution.

[0029] Preferably, the electric clamp 11 is mounted on the three-axis rotary table 2 by screws. When it is necessary to spray workpieces of different shapes or sizes, the current clamp can be easily disassembled and a special clamp adapted to the new workpiece can be installed, which greatly shortens the production preparation time and improves the applicability of the equipment.

[0030] Preferably, the exhaust gas filter box 6 is connected to the factory exhaust gas pipeline 12, which connects the exhaust gas that has undergone preliminary treatment by cyclone separation and filter box purification to the factory's unified exhaust gas treatment system or emission pipeline, ensuring that the final emission meets environmental protection regulations and avoiding secondary diffusion of the treated exhaust gas in the workshop. It is integrated with the factory's overall environmental protection facilities to achieve centralized, efficient and compliant treatment of exhaust gas.

[0031] Preferably, the exhaust gas filter box 6 includes a filter box body 601, an exhaust fan 602, a filter screen 603, an activated carbon adsorption screen 604, and a discharge valve 605. The exhaust fan 602 and the discharge valve 605 are located in the filter box body 601, and the exhaust fan 602 is connected to the factory exhaust gas pipeline 12. The filter screen 603 and the activated carbon adsorption screen 604 are installed in the filter box body 601 by screws. The filter box body 601 is provided with an inspection door 606, which can intercept residual larger particles and paint mist. The activated carbon adsorption screen is specifically used to adsorb organic solvents and odors in the exhaust gas, providing exhaust gas purification function.

[0032] Preferably, the paint supply box 7 includes a paint box 701, a stirring motor 702, a stirring frame 703, a feeding cylinder 704, a paint pump 705, and an electric heater 706. The stirring motor 702, the feeding cylinder 704, the paint pump 705, and the electric heater 706 are all located in the paint box 701. The drive end of the stirring motor 702 is connected to the stirring frame 703. The stirring motor drives the stirring frame to continuously or intermittently stir the paint to prevent solid components such as pigments and fillers from settling and clumping in the paint box, thus ensuring the uniformity and stability of the paint concentration, which is crucial for the spraying quality.

[0033] Preferably, the paint tank 701 has a cylindrical structure with an openable and closable cover at the top. The paint tank 701 has a through-pipe groove, and the liquid extraction pipe of the paint pump 705 is placed in the through-pipe groove and positioned by a clamp. The openable and closable cover at the top facilitates the addition of new paint to the paint tank and also facilitates thorough cleaning of the inside of the tank, reducing contamination between different batches or colors of paint.

[0034] The specific working principle and usage method of this utility model are as follows:

[0035] S1, Preparation Phase:

[0036] Select a suitable electric clamp 11 according to the shape of the workpiece to be sprayed, and fix the electric clamp to the working surface of the three-axis rotary table 2 with screws. Fill the paint supply tank 7 with the required amount of paint, turn on the stirring motor 702 to stir the paint to prevent sedimentation. If the paint viscosity is too high or the ambient temperature is low, turn on the electric heater 706 to preheat the paint to achieve a suitable spraying viscosity. The paint pump 705 starts working, drawing the paint from the bottom of the tank through the extraction pipe and delivering it to the spray gun 8 through the supply pipeline. Adjust the pump pressure to the set value, confirm that the exhaust gas treatment system is properly connected and that the discharge valve 605 is in the closed state, and turn on the exhaust fan 602 of the exhaust gas filter box 6 to establish a negative pressure environment in the spray box. At the same time, confirm that its outlet is unobstructed and connected to the factory exhaust gas pipeline 12.

[0037] S2, Clamping and Feeding Stage:

[0038] Open the sealed door 10 of the spraying box 1, load the shell workpiece to be sprayed onto the electric clamp 11 and clamp it in place, then exit the spraying box, close and lock the sealed door 10;

[0039] S3, Spray painting operation:

[0040] The operator monitors the process through an observation window or external control console, initiating the spraying program. The three-axis turntable 2 begins to move, rotating and tilting the workpiece according to a preset program, presenting each surface of the workpiece to be sprayed sequentially and accurately to the spray gun. The spraying robotic arm 3 moves the spray gun 8 along a set trajectory. Under program control, the spray gun atomizes the paint from the paint supply tank 7 and sprays it onto the rotating / moving workpiece surface. The coordinated movements of the robotic arm and the turntable ensure uniform spraying coverage without dead angles. Overspray mist and volatile solvents generated during the spraying process are effectively captured by the gas collection hood 4 under the negative pressure generated by the exhaust fan 602.

[0041] S4, Exhaust Gas Treatment:

[0042] The paint mist-containing exhaust gas collected by the gas collection hood first enters the cyclone separator 5. In the cyclone separator, centrifugal force is used to separate the larger paint mist particles in the exhaust gas. These particles fall into the powder collection drawer 9 at the bottom. This drawer needs to be cleaned regularly. The exhaust gas, which has been preliminarily purified by the cyclone separator, enters the exhaust gas filter box 6. The exhaust gas first passes through the filter screen 603 to intercept residual fine particles. Then, the exhaust gas passes through the activated carbon adsorption screen 604 to adsorb and remove organic solvents (VOCs) and odors from the exhaust gas. The purified gas is driven by the exhaust fan 602 and discharged to the factory's final treatment facilities or meets emission standards through the factory exhaust gas pipeline 12. The discharge valve 605 at the bottom of the filter box needs to be opened regularly to discharge any small amount of sediment that may accumulate.

[0043] S5, Completion and Unloading:

[0044] After the spraying process is completed, the spray gun is turned off, the three-axis turntable and robotic arm stop moving, and the workpiece is left to stand still in the box for a short time. Then, the exhaust fan 602 is turned off, the sealing door 10 is opened, the operator releases the electric clamp 11, and removes the sprayed outer shell workpiece. If continuous operation is required, the next workpiece is loaded and steps 2-5 are repeated.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A shell spraying device, comprising a spraying box (1), a three-axis turntable (2), a spraying robotic arm (3), a gas collection hood (4), a cyclone separator (5), an exhaust gas filter box (6), and a paint supply box (7), characterized in that: The three-axis turntable (2) and the spraying robot arm (3) are set inside the spraying box (1). The gas collection hood (4) is set inside the spraying box (1). The gas collection hood (4), the cyclone separator (5), and the exhaust gas filter box (6) are connected in sequence. The spraying robot arm (3) is equipped with a spray gun (8). The paint supply box (7) supplies paint to the spray gun (8). The cyclone separator (5) is equipped with a powder collection drawer (9). The three-axis turntable (2) is detachably equipped with an electric clamp (11).

2. The shell spraying device according to claim 1, characterized in that, The spray box (1) is equipped with a sealed door (10), and the sealed door (10) is equipped with an observation window.

3. The shell spraying device according to claim 1, characterized in that, The electric clamp (11) is mounted on the three-axis rotary table (2) by screws.

4. The shell spraying device according to claim 1, characterized in that, The exhaust gas filter box (6) is connected to the factory exhaust gas pipeline (12).

5. The shell spraying device according to claim 1, characterized in that, The exhaust gas filter box (6) includes a filter box body (601), an exhaust fan (602), a filter screen (603), an activated carbon adsorption screen (604), and a discharge valve (605). The exhaust fan (602) and the discharge valve (605) are located in the filter box body (601), and the exhaust fan (602) is connected to the factory exhaust gas pipeline (12). The filter screen (603) and the activated carbon adsorption screen (604) are installed in the filter box body (601) by screws. The filter box body (601) is provided with an inspection door (606).

6. The shell spraying device according to claim 1, characterized in that, The paint supply box (7) includes a paint box (701), a stirring motor (702), a stirring rack (703), a feeding cylinder (704), a paint pump (705), and an electric heater (706). The stirring motor (702), the feeding cylinder (704), the paint pump (705), and the electric heater (706) are all located in the paint box (701). The drive end of the stirring motor (702) is connected to the stirring rack (703).

7. The shell spraying device according to claim 6, characterized in that, The paint tank (701) is a cylindrical structure with an openable and closable cover on top. A through-pipe groove is provided inside the paint tank (701), and the liquid extraction pipe of the paint pump (705) is placed in the through-pipe groove and positioned by a clamp.

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