Dry type environment-friendly paint spraying device

Abstract

The utility model relates to the technical field of paint spraying equipment, in particular to a dry type environment-friendly paint spraying device which comprises a paint spraying box, a sealing box door is hinged to the front side of the paint spraying box through hinges, a double-end paint spraying pipe is arranged at the top of the paint spraying box, and a paint access connector is arranged in the middle section of the double-end paint spraying pipe. Paint flows into the two ends of the double-end paint spraying pipe through the connector, the two ends of the double-end paint spraying pipe penetrate into the two sides of the interior of the paint spraying box respectively, and the two ends of the double-end paint spraying pipe are each provided with an atomization nozzle. Through the synergistic effect of the powerful sucking pump, the inflating pump and the air conveying spraying pipe, uniform air flow from bottom to top is formed in the paint spraying box, paint mist in a working area is driven to comprehensively and rapidly rise, it is ensured that the powerful sucking pump rapidly pumps paint mist mixed air away, and therefore the paint mist trapping efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paint spraying equipment technical field especially relates to a dry type environmental protection paint spraying device. BACKGROUND

[0002] As a surface treatment process widely used in industrial production, paint spraying is mainly used to improve the appearance quality and corrosion resistance of workpieces. In actual operation, the paint spraying process is usually carried out in a specially designed paint spraying room. Compressed air is used to uniformly spray paint mist onto the surface of the workpiece to form a dense coating. However, a large amount of paint mist and volatile organic compounds are inevitably generated during this process. These pollutants not only cause serious environmental pollution, but also pose a threat to human health. Therefore, wet and dry paint mist capture devices are generally introduced into the paint spraying room. Compared with traditional wet paint spraying rooms, dry paint spraying rooms use non-liquid media (such as activated carbon and fiber filter materials) to capture paint mist, avoiding the generation of waste water and reducing secondary pollution, thus being more environmentally friendly and energy-efficient.

[0003] Patent No. CN220559593U discloses a dry type environmental protection paint spraying room. By starting the air extractor, the paint mist is transported into the connecting shell through the filter screen using the air speed. Then, the clean air is discharged to the outdoor through the air extractor. In addition, the patent designs a convenient disassembly mechanism for the filter cotton board and the filter screen. The filter cotton board can be easily removed by pulling the pull ring, and the filter screen can be disassembled by pulling the connecting handle downward, thereby improving the maintenance convenience of the equipment. Although this patent solves the problem of inconvenient replacement of filter materials in traditional dry paint spraying rooms to some extent, it still has some shortcomings in actual application. The patent relies solely on a single air extractor at the top, resulting in a large difference in air flow speed at different positions in the paint spraying room. The air flows quickly in the area close to the air extractor, while the air flows slowly in the area far from the air extractor, making it difficult to achieve comprehensive and rapid capture of paint mist. In addition, since the paint mist generated during the paint spraying process cannot be quickly extracted, some paint mist may scatter in the paint spraying room, increasing the cleaning difficulty and reducing the work efficiency.

[0004] Therefore, there is an urgent need to provide a dry type environmental protection paint spraying device with high paint mist capture efficiency and comprehensive performance. UTILITY MODEL CONTENTS

[0005] To overcome the shortcomings of the existing patent dry paint spraying device, such as slow air flow in the paint spraying room, resulting in low paint mist capture efficiency of the air extractor, the utility model provides a dry type environmental protection paint spraying device with high paint mist capture efficiency and comprehensive performance.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a dry, environmentally friendly spray painting device, comprising a spray painting box with a sealed door hinged to the front. A double-ended spray pipe is mounted on the top of the spray painting box, with a paint inlet at the middle section. Paint flows through this inlet to both ends of the double-ended spray pipe, which then penetrates into the interior of the spray painting box on both sides, each end fitted with an atomizing nozzle. An air outlet pipe is connected to the center of the top of the spray painting box, with a powerful air pump installed at its upper end. A placement cylinder, filled with a filter element, is movably disposed inside the lower end of the air outlet pipe. An air inlet pipe is connected to the rear lower part of the spray painting box, with an air pump installed at one end and the other end extending into the spray painting box and connected to an air supply nozzle. The air supply nozzle surrounds the interior of the spray painting box and has multiple sets of air nozzles, each with an internal mesh.

[0007] As an improvement to the above solution, a placement platform is provided at the bottom of the paint spray box, the placement platform is located in the middle of the double-headed paint spray tube, a turntable is rotatably provided on the top of the placement platform, a first servo motor is installed at the bottom of the paint spray box, the first servo motor is located inside the placement platform, and the output shaft of the first servo motor is connected to the turntable.

[0008] As an improvement to the above solution, a sleeve is fixed to the inner side wall of the paint spray box, and a telescopic rod is slidably installed inside the sleeve. A second servo motor is installed at the front end of the telescopic rod, and a connecting frame is provided at the end of the output shaft of the second servo motor. Multiple nylon cleaning wheels are provided on the connecting frame. Both the sleeve and the front end of the telescopic rod are provided with internal threaded holes, and a screw is threaded onto the internal threaded holes. A knob is threaded onto the lower end of the screw.

[0009] As an improvement to the above solution, a collection cylinder is embedded in the bottom of the paint spray box, located directly below the atomizing nozzle.

[0010] As an improvement to the above solution, the front side of the paint spray box is provided with a groove structure.

[0011] As an improvement to the above solution, the inner two side walls of the paint spray box are provided with support bases, and the support bases are provided with round holes for the double-ended paint spray pipes to pass through.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. Through the synergistic action of the powerful suction pump, the air pump and the air delivery nozzle, a uniform airflow from bottom to top is formed inside the paint spraying box, which drives the paint mist in the working area to rise rapidly and comprehensively, ensuring that the powerful suction pump quickly draws away the paint mist mixed with air, thereby improving the paint mist collection efficiency and effect.

[0013] 2. The automatic rotation of the object is achieved by using a turntable in conjunction with the first servo motor, ensuring uniform spraying and improving spraying quality.

[0014] 3. A cleaning device is composed of a sleeve, telescopic rod, second servo motor, connecting frame, nylon cleaning wheel, screw and knob. The second servo motor drives the nylon cleaning wheel to find and automatically complete the cleaning work on the surface of the turntable to remove the attached paint residue and prevent the bottom of the subsequent objects from being contaminated with paint. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the paint spray box, powerful vacuum pump, and air pump of this utility model.

[0017] Figure 3 This is a three-dimensional cross-sectional view of the air outlet pipe, placement cylinder, and filter element of this utility model.

[0018] Figure 4 This is a three-dimensional cover view of the gas delivery nozzle and isolation net of this utility model.

[0019] Figure 5 This is a three-dimensional cross-sectional view of the placement platform, turntable, and first servo motor of this utility model.

[0020] Figure 6 This is a three-dimensional cross-sectional view of the sleeve, the second servo motor, and the nylon cleaning wheel of this utility model.

[0021] The following are the labels in the diagram: 1. Spray paint box, 2. Sealed box door, 3. Air outlet pipe, 301. Powerful air pump, 302. Placement cylinder, 303. Filter element, 4. Air inlet pipe, 401. Air pump, 402. Air delivery nozzle, 403. Isolation net, 5. Double-ended spray paint pipe, 6. Atomizing nozzle, 7. Placement platform, 8. Turntable, 9. First servo motor, 10. Sleeve, 11. Telescopic rod, 12. Second servo motor, 1201. Connecting frame, 13. Nylon cleaning wheel, 14. Screw, 15. Knob, 16. Collection cylinder, 17. Groove structure, 18. Support base. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example 1: Please refer toFigures 1-4 A dry, environmentally friendly spray painting device includes a spray box 1. A sealed door 2 is hinged to the front of the spray box 1. A groove structure 17 is provided on the front of the spray box 1, matching the edge shape of the sealed door 2 to ensure that the sealed door 2 is tightly embedded in the spray box 1 when closed, thereby significantly improving the sealing performance of the spray box 1 and preventing paint mist leakage. A double-ended spray pipe 5 is provided at the top of the spray box 1. A paint inlet is provided in the middle of the double-ended spray pipe 5, through which paint flows into both ends of the double-ended spray pipe 5. The two ends of the double-ended spray pipe 5 respectively penetrate into the interior of the spray box 1, and each end is equipped with an atomizing nozzle 6 to achieve double-sided spraying of objects. Two collection cylinders 16 are embedded in the bottom of the spray box 1, located directly below the two atomizing nozzles 6, to collect excess paint that may drip from the atomizing nozzles 6 during spraying, preventing paint residue from contaminating the interior of the spray box 1. A support base 18 is provided on the side wall, and the support base 18 has a round hole for the double-ended paint spraying pipe 5 to pass through. The support base 18 not only provides stable support for the double-ended paint spraying pipe 5, but also effectively prevents the paint spraying pipe from shaking due to gravity or vibration, ensuring the stability of the painting process. An air outlet pipe 3 is connected and communicated at the center of the top of the paint spraying box 1. A powerful air pump 301 is installed at the upper end of the air outlet pipe 3, and a pull-out placement cylinder 302 is movably installed inside the lower end of the air outlet pipe 3. The placement cylinder 302 is filled with a filter element 303 for filtering the paint mist mixed with air. The lower rear side of the paint spray box 1 is connected to and communicates with an air inlet pipe 4. One end of the air inlet pipe 4 is equipped with an air pump 401, and the other end extends into the paint spray box 1 and is connected to an air supply nozzle 402. The air supply nozzle 402 is arranged around the inside of the paint spray box 1 and has two sets of air jets, each set having five air jets. Each air jet is equipped with an isolation net 403 to prevent foreign objects from entering the air jet.

[0024] When using this device, open the sealed door 2, place the object to be painted into the paint spraying box 1, then close the sealed door 2, inject paint into the paint inlet of the double-headed paint spraying pipe 5, and start the atomizing nozzle 6. The atomizing nozzle 6 begins to spray the object on both sides. During the painting process, start the powerful suction pump 301 to generate suction force, causing the paint mist mixed with air in the paint spraying box 1 to flow upward and enter the air outlet pipe 3. At the same time, start the air pump 401 to input outside air into the air inlet pipe 4. The air is evenly distributed into the paint spraying box 1 through the air jet on the air supply nozzle 402, forming an upward airflow that drives the paint mist to rise quickly and comprehensively, making it easier for the powerful suction pump 301 to suck up the paint mist and improve suction efficiency. Finally, the paint mist mixed with air entering the air outlet pipe 3 is filtered by the filter element 303 to remove the paint mist particles. The clean air is then discharged to the external environment or further treated before being discharged, achieving effective collection and filtration of paint mist generated during the painting process, thus achieving environmental protection.

[0025] Example 2: Based on Example 1, please refer to... Figure 2 and Figure 5 The bottom of the paint spray box 1 is provided with a placement platform 7 for placing objects. The placement platform 7 is located in the middle of the double-headed paint spray pipe 5. A turntable 8 is rotatably provided on the top of the placement platform 7. A first servo motor 9 is installed at the bottom of the paint spray box 1. The first servo motor 9 is located inside the placement platform 7. The output shaft of the first servo motor 9 is connected to the turntable 8 and is used to drive the turntable 8 to rotate.

[0026] Please see Figure 2 and Figure 6 A sleeve 10 is fixedly connected to the rear side wall inside the paint spray box 1. A telescopic rod 11 is slidably arranged inside the sleeve 10. A second servo motor 12 is installed at the front end of the telescopic rod 11. A connecting frame 1201 is provided at the end of the output shaft of the second servo motor 12. Five nylon cleaning wheels 13 are arranged horizontally and evenly on the connecting frame 1201 for cleaning residual paint on the surface of the turntable 8. Both the sleeve 10 and the front end of the telescopic rod 11 are provided with internal threaded holes. A screw 14 is threaded on the internal threaded hole. A knob 15 is threaded on the lower end of the screw 14. By rotating the knob 15, the screw 14 can be locked or loosened, thereby fixing or unlocking the telescopic rod 11 inside the sleeve 10.

[0027] During spraying, the object to be sprayed is placed flat on the turntable 8. Then, the first servo motor 9 is turned on. The output shaft of the first servo motor 9 drives the turntable 8 to rotate, so that the object can be evenly coated with paint from all directions during the spraying process, thereby improving the spraying quality. After the spraying is completed, the sprayed object is removed. Then, the knob 15 is loosened, and the screw 14 is unscrewed from the internal threaded hole to release the fixation of the telescopic rod 11. The telescopic rod 11 is pulled outward so that the nylon cleaning wheel 13 at its front end moves directly above the turntable 8, ensuring that the nylon cleaning wheel 13 is in close contact with the surface of the turntable 8. The second servo motor 12 is started, and its output shaft drives all the nylon cleaning wheels 13 to rotate together through the connecting bracket 1201 to thoroughly clean the surface of the turntable 8 to remove the attached paint residue and prevent the bottom of the object from getting paint on it when it is placed later. After cleaning, the telescopic rod 11 is pushed back into the sleeve 10, and the screw 14 and knob 15 are tightened again to complete the equipment reset for the next use.

[0028] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. A dry environmentally friendly spray painting device, comprising a spray painting box (1), a sealed box door (2) hinged to the front side of the spray painting box (1), a double-headed spray painting pipe (5) provided on the top of the spray painting box (1), a paint inlet provided in the middle section of the double-headed spray painting pipe (5), paint flowing into both ends of the double-headed spray painting pipe (5) through the inlet, and both ends of the double-headed spray painting pipe (5) respectively penetrating into both sides of the interior of the spray painting box (1), and each end is equipped with an atomizing nozzle (6), characterized in that: The top center of the paint spray box (1) is connected to and communicates with an air outlet pipe (3). A powerful air pump (301) is installed at the upper end of the air outlet pipe (3). A placement cylinder (302) is movably arranged inside the lower end of the air outlet pipe (3). A filter element (303) is filled inside the placement cylinder (302). The lower rear side of the paint spray box (1) is connected to and communicates with an air inlet pipe (4). An air pump (401) is installed at one end of the air inlet pipe (4), and the other end extends into the paint spray box (1) and is connected to an air supply nozzle (402). The air supply nozzle (402) is arranged around the inside of the paint spray box (1) and has multiple sets of air jets. Each air jet has an isolation net (403) inside it.

2. The dry environmentally friendly spray painting device as described in claim 1, characterized in that: The bottom of the paint spray box (1) is provided with a placement platform (7), which is located in the middle of the double-headed paint spray tube (5). A turntable (8) is rotatably provided on the top of the placement platform (7). A first servo motor (9) is installed at the bottom of the paint spray box (1), which is located inside the placement platform (7). The output shaft of the first servo motor (9) is connected to the turntable (8).

3. The dry environmentally friendly spray painting device as described in claim 2, characterized in that: A sleeve (10) is fixed to the inner side wall of the paint spray box (1). A telescopic rod (11) is slidably arranged inside the sleeve (10). A second servo motor (12) is installed at the front end of the telescopic rod (11). A connecting frame (1201) is provided at the end of the output shaft of the second servo motor (12). A plurality of nylon cleaning wheels (13) are provided on the connecting frame (1201). Both the sleeve (10) and the telescopic rod (11) have internal threaded holes at their front ends. A screw (14) is threaded on the internal threaded hole. A knob (15) is threaded on the lower end of the screw (14).

4. The dry environmentally friendly spray painting device as described in claim 3, characterized in that: The bottom of the paint spray box (1) is fitted with a collection tube (16) located directly below the atomizing nozzle (6).

5. The dry environmentally friendly spray painting device as described in claim 4, characterized in that: The front side of the paint spray box (1) is provided with a groove structure (17).

6. The dry environmentally friendly spray painting device as described in claim 5, characterized in that: The paint spray box (1) has a support base (18) on both sides inside. The support base (18) has a round hole for the double-headed paint spray tube (5) to pass through.

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