A spraying device for paint mist recycling

Abstract

The utility model relates to a spraying technical field especially relates to a kind of spraying equipment of paint mist recycling and recycling. The spraying equipment of paint mist recycling and recycling includes mounting seat, the storage oil paint storage cavity is opened in mounting seat inside, detachable filter plate is fixedly installed on the storage cavity inner wall, detachable storage board is also installed in the storage cavity;The inside of the storage cavity is also installed with negative pressure structure.The spraying process in the utility model in closed cover is carried out, avoids paint mist to directly drift to outside, and paint mist is filtered and recycled and is reused to collect paint mist by the negative pressure adsorption of the negative pressure structure and the natural backflow of paint liquid self-gravity, avoid the waste of paint raw material, also effectively avoid that paint mist spreads to working environment, reduce the influence to operator health, also reduce the pollution of paint mist to surrounding environment.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, and in particular to a spraying equipment for recycling and reusing paint mist. Background Technology

[0002] Spraying is a coating process that uses a spray gun or disc atomizer to disperse paint into uniform and fine droplets with pressure or centrifugal force, and then coats the surface of the object to be coated. It has the characteristics of high efficiency, uniform coating, and strong adaptability, and is widely used in many fields such as automobiles, furniture, machinery, and construction.

[0003] In traditional spraying operations, the paint mist generated during the spraying process will drift directly into the working environment, which will not only cause health hazards to the respiratory system and skin of operators, but also pollute the surrounding air, equipment and ground. At the same time, a large amount of paint mist that does not adhere to the surface of the workpiece cannot be recovered and is directly lost, resulting in low utilization of paint raw materials and increased production costs.

[0004] Therefore, it is necessary to provide a new spraying equipment for paint mist recovery and recycling to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a new spraying equipment for paint mist recovery and recycling.

[0006] The paint mist recycling spraying equipment provided by this utility model includes: a mounting base, wherein the mounting base has a storage chamber for storing paint, a detachable filter plate is fixedly installed on the inner wall of the storage chamber, and a detachable shelf is also installed in the storage chamber;

[0007] The storage chamber is also equipped with a negative pressure structure, which includes a hollow annular cylinder suspended below the placement plate. Multiple annularly distributed suction hoods are fixedly installed on the annular cylinder. A suction pump is fixedly installed on one side of the mounting base, and a suction pipe and a delivery pipe are fixedly installed on the suction pump. The end of the suction pipe is fixedly connected to the annular cylinder and communicates with it. The end of the delivery pipe is fixedly connected to the side wall of the mounting base and communicates with the storage chamber.

[0008] A liftable cover is installed above the mounting base. The upper side wall of the cover has ventilation holes, and a spraying structure is installed inside the cover.

[0009] Preferably, multiple ring-shaped support rods are fixedly installed at the bottom of the shelf, and the mounting base is provided with a limiting socket for inserting the support rods.

[0010] Preferably, the annular cylinder is equipped with a plurality of hooks that are rotatably connected to it, and the annular cylinder is suspended from the support rod by the hooks.

[0011] Preferably, an annular baffle is fixedly installed on the central annular wall of the storage chamber, and the filter plate is placed on the annular baffle.

[0012] Preferably, the end of the gas delivery pipe extends to the center of the storage chamber and is located near the bottom of the storage chamber.

[0013] Preferably, the spraying structure includes multiple L-shaped branch pipes distributed in a ring inside the cover, and multiple nozzles connected to each of the L-shaped branch pipes are fixedly installed. A drive motor is also fixedly installed on the cover, and the ends of the multiple nozzles are fixedly connected to the output end of the drive motor. The ends of the multiple nozzles that are close to each other are rotatably connected to a transfer cylinder, and the transfer cylinder is connected to the multiple L-shaped branch pipes. A suction pump is also fixedly installed on the side wall of the mounting base, and a suction pipe and a delivery pipe are fixedly installed on the suction pump. The end of the suction pipe is fixedly connected to the side wall of the mounting base and communicates with the bottom of the storage chamber. The end of the delivery pipe is fixedly connected to the transfer cylinder and communicates with each other.

[0014] Preferably, the conveying pipe is formed by connecting a rigid pipe and a flexible pipe, wherein the section of the conveying pipe inside the cover is a rigid pipe and the section of the conveying pipe outside the cover is a flexible pipe.

[0015] Preferably, a lifting structure is installed on the side wall of the mounting base. The lifting structure includes a cylinder fixedly installed on the side wall of the mounting base, and a piston rod is fixedly installed at the output end of the cylinder. The upper end of the piston rod is fixedly connected to the side wall of the cover.

[0016] Compared with related technologies, the paint mist recovery and recycling spraying equipment provided by this utility model has the following beneficial effects:

[0017] The spraying process in this invention is carried out inside a closed cover, which prevents the paint mist from drifting directly to the outside. At the same time, the paint mist is filtered, recycled, and reused through the natural backflow of the paint liquid by gravity and the negative pressure adsorption of the negative pressure structure. This avoids the waste of paint raw materials, effectively prevents the paint mist from spreading into the working environment, reduces the impact on the health of operators, and also reduces the pollution of the surrounding environment by the paint mist. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the paint mist recovery and recycling spraying equipment provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the filter plate.

[0020] Figure 3 for Figure 1The diagram shows the structure of the shelf.

[0021] Figure 4 for Figure 1 The diagram shows the structure of the negative pressure structure.

[0022] Figure 5 for Figure 1 The diagram shows the structure of the mounting base;

[0023] Figure 6 for Figure 1 The diagram shows the structure of the spray coating.

[0024] The following are the labeling elements in the diagram: 1. Mounting base; 11. Storage chamber; 12. Limiting socket; 2. Cover; 21. Vent hole; 3. Shelf; 31. Support rod; 4. Filter plate; 41. Annular stop block; 5. Spraying structure; 51. L-shaped branch pipe; 52. Spray nozzle; 53. Drive motor; 54. Transfer cylinder; 55. Suction pump; 56. Suction pipe; 57. Conveying pipe; 6. Negative pressure structure; 61. Annular cylinder; 62. Suction hood; 63. Hook; 64. Suction pump; 65. Suction pipe; 66. Conveying pipe; 7. Lifting structure; 71. Cylinder; 72. Piston rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 6 This utility model provides a spraying device for paint mist recovery and recycling. The spraying device for paint mist recovery and recycling includes: a mounting base 1, a storage chamber 11 for storing paint inside the mounting base 1, a detachable filter plate 4 fixedly installed on the inner wall of the storage chamber 11, and a detachable shelf 3 installed in the storage chamber 11; multiple ring-shaped support rods 31 fixedly installed at the bottom of the shelf 3, and a limiting socket 12 for inserting the support rods 31 is provided on the mounting base 1; an annular stop block 41 is fixedly installed on the annular wall in the middle of the storage chamber 11, and the filter plate 4 is placed on the annular stop block 41.

[0028] It should be noted that: the storage chamber 11 is used for storing paint and recycling paint mist. The filter plate 4 is restricted by the annular block 41 fixed inside the storage chamber 11, without the need for additional fixing structure, making installation and disassembly convenient and quick. The placement plate 3 is used to place the workpiece to be painted. The placement plate 3 is restricted by the support rod 31 inserted into the limiting socket 12 at its end, so that it is restricted to the center of the upper part of the storage chamber 11, which also facilitates subsequent disassembly and cleaning.

[0029] To facilitate subsequent cleaning of the storage chamber 11, a drain pipe can be installed outside the mounting base 1, and a control valve can be installed on the drain pipe.

[0030] It is worth noting that filter plate 4 can adopt a double-layer composite structure, with the upper layer being a metal mesh (intercepting large particulate impurities) and the lower layer being an activated carbon fiber layer (adsorbing volatile organic compounds in the paint mist), which ensures the cleanliness of the paint liquid and reduces the odor of the recycled paint liquid.

[0031] The storage chamber 11 is also equipped with a negative pressure structure 6, which includes a hollow annular cylinder 61 suspended below the storage plate 3. Multiple annularly distributed suction hoods 62 are fixedly installed on the annular cylinder 61. A suction pump 64 is fixedly installed on one side of the mounting base 1, and a suction pipe 65 and a delivery pipe 66 are fixedly installed on the suction pump 64. The end of the suction pipe 65 is fixedly connected to the annular cylinder 61 and communicates with it. The end of the delivery pipe 66 is fixedly connected to the side wall of the mounting base 1 and communicates with the storage chamber 11. A liftable cover 2 is installed above the mounting base 1. A vent hole 21 is opened on the upper side wall of the cover 2. A spraying structure 5 is installed inside the cover 2.

[0032] It should be noted that during the painting process, the workpiece is placed on the shelf 3, the cover 2 is lowered to seal the workpiece, and the spraying structure 5 inside the cover 2 sprays the workpiece. Since the workpiece is completely inside the cover 2 during the painting process, the paint mist generated during the painting process is prevented from drifting onto the inner wall of the cover 2. The paint mist on the inner wall of the cover 2 slides down into the storage chamber 11, and after being filtered by the filter plate 4, it enters the paint liquid below the storage chamber 11 for recycling. The paint liquid on the shelf 3 also slides down into the storage chamber 11, is filtered by the filter plate 4, and is reused. At the same time, the suction pump 64 in the negative pressure structure 6 is turned on, and the suction pipe 65 draws air into the annular cylinder 61 to generate negative pressure. The suction hood 62 absorbs the paint mist still floating inside the cover 2, and then transports it through the air supply pipe 66 to the paint liquid in the storage chamber 11. A filter cover is installed at the end of the air supply pipe 66 to prevent impurities from being directly transported into the paint liquid by the air supply pipe 66. The vent 21 on the cover 2 is used to maintain air circulation inside and outside the cover 2. The spraying process in this utility model is carried out inside the closed cover 2, which avoids the paint mist from directly floating to the outside. At the same time, the paint mist is filtered, recycled and reused by the natural backflow of the paint liquid due to its own gravity and the negative pressure adsorption of the negative pressure structure 6. This avoids the waste of paint raw materials, effectively prevents the paint mist from spreading into the working environment, reduces the impact on the health of operators, and also reduces the pollution of the surrounding environment by the paint mist.

[0033] The annular cylinder 61 is equipped with multiple hooks 63 that are rotatably connected to it, and the annular cylinder 61 is suspended on the support rod 31 through the hooks 63. When the storage plate 3 is removed, the annular cylinder 61 and other components in the negative pressure structure 6 can be removed together, which facilitates the subsequent disassembly of the filter plate 4.

[0034] The end of the air supply pipe 66 extends to the center of the storage chamber 11 and is located near the bottom of the storage chamber 11. While the air supply pipe 66 supplies paint mist to the paint liquid inside the storage chamber 11, the air supplied can generate bubbles inside the paint liquid, which can play a certain role in stirring the paint liquid, preventing the paint liquid from settling and ensuring the uniformity of the paint liquid.

[0035] It is worth noting that a removable filter (such as a non-woven filter) can be installed at the vent 21 of the cover 2 to ensure air circulation and filter out trace amounts of paint mist escaping from the vent, thereby further reducing environmental pollution.

[0036] It is also worth noting that the suction pump 64 can be a Grundfos CR series centrifugal pump. The Grundfos CR series centrifugal pump has high reliability and stability, can work continuously for a long time, and has a wide range of flow and head. The appropriate specifications can be selected according to the actual needs of the equipment to meet the functional requirements of generating negative pressure through the suction pipe to draw air into the annular cylinder and then sucking up paint mist.

[0037] In the embodiments of this utility model, please refer to Figure 1 , Figure 5 and Figure 6 The spraying structure 5 includes multiple L-shaped branch pipes 51 distributed in a ring inside the cover 2, and multiple nozzles 52 are fixedly installed on each L-shaped branch pipe 51 and communicate with them. A drive motor 53 is also fixedly installed on the cover 2, and the ends of the multiple nozzles 52 are fixedly connected to the output end of the drive motor 53. The ends of the multiple nozzles 52 that are close to each other are also rotatably connected to a transfer cylinder 54, and the transfer cylinder 54 communicates with the multiple L-shaped branch pipes 51. A suction pump 55 is also fixedly installed on the side wall of the mounting base 1, and a suction pipe 56 and a conveying pipe 57 are also fixedly installed on the suction pump 55. The end of the suction pipe 56 is fixedly connected to the side wall of the mounting base 1 and communicates with the bottom of the storage chamber 11. The end of the conveying pipe 57 is fixedly connected to the transfer cylinder 54 and communicates with each other.

[0038] It should be noted that when the cover 2 covers the workpiece on the shelf 3, the suction pump 55 draws the paint liquid inside the storage chamber 11 through the suction pipe 56 and transports the paint liquid through the delivery pipe 57. The paint liquid is then sprayed out from the nozzle 52 through the transfer cylinder 54 and the L-shaped branch pipe 51 in sequence. The drive motor 53 drives the multiple L-shaped branch pipes 51 to rotate, which can quickly complete the painting operation of the workpiece and improve work efficiency. Since the transfer cylinder 54 is rotatably connected to the multiple L-shaped branch pipes 51, the rotating L-shaped branch pipes 51 will not affect the use of the transfer cylinder 54 while ensuring the delivery of paint liquid to the multiple L-shaped branch pipes 51.

[0039] The conveying pipe 57 is composed of a rigid pipe and a flexible pipe. The section of the conveying pipe 57 inside the cover 2 is a rigid pipe, and the section of the conveying pipe 57 outside the cover 2 is a flexible pipe. The transfer cylinder 54 is rotatably connected to multiple L-shaped branch pipes 51. When the multiple L-shaped branch pipes 51 rotate, the friction between them will cause the transfer cylinder 54 to rotate. If the conveying pipe 57 is entirely a flexible pipe, the long-term rotational tension will damage the conveying pipe 57. Setting this section of the conveying pipe 57 as a rigid pipe increases the connection stability of the conveying pipe 57 and ensures the safe delivery of the paint. The end of the conveying pipe 57 outside the cover 2 is set as a flexible pipe to ensure that the lifting and lowering of the cover 2 will not affect the conveying pipe 57 and ensure the safe delivery of the paint.

[0040] It is worth noting that a speed control module can be added to the drive motor 53 to select different speeds according to the workpiece size (e.g., high speed for small workpieces and low speed for large workpieces), avoiding local overspray or underspray caused by fixed speed.

[0041] Among them, the drive motor 53 can be a Parker MGV series permanent magnet synchronous motor. The MGV motor is designed for high-speed and low-inertia applications and can meet the needs of driving the L-shaped branch pipe 51 to rotate quickly to achieve efficient painting. It has a high response speed and excellent dynamic performance, which can ensure that the drive motor 53 maintains stable operation during frequent start-up, stop and speed change, and accurately controls the painting action of the nozzle 52.

[0042] The suction pump 55 can be a Graco E-Flo DC 4-ball electric pump. This pump has a high output, reaching 2000cc / cycle, which can meet the equipment's requirement for rapid suction of paint from the storage chamber. It is driven by a brushless DC motor, which is up to four times more efficient than a pneumatic pump of similar specifications, resulting in significant energy savings. It has dual control (DC) modes to maintain constant pressure or flow, ensuring stable paint delivery, and integrates dry run protection to prevent material loss and premature pump wear.

[0043] In the embodiments of this utility model, please refer to Figure 1 and Figure 5 A lifting structure 7 is installed on the side wall of the mounting base 1. The lifting structure 7 includes a cylinder 71 fixedly installed on the side wall of the mounting base 1, and a piston rod 72 is fixedly installed on the output end of the cylinder 71. The upper end of the piston rod 72 is fixedly connected to the side wall of the cover 2.

[0044] It should be noted that the cylinder 71 controls the extension and retraction of the piston rod 72, which in turn controls the stable lifting and lowering of the cover 2.

[0045] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spraying device for paint mist recovery and recycling, comprising a mounting base (1), characterized in that: The mounting base (1) has a storage cavity (11) for storing paint inside. A detachable filter plate (4) is fixedly installed on the inner wall of the storage cavity (11). A detachable shelf (3) is also installed in the storage cavity (11). The storage chamber (11) is also equipped with a negative pressure structure (6). The negative pressure structure (6) includes a hollow annular cylinder (61) and the annular cylinder (61) is suspended below the placement plate (3). Multiple annularly distributed suction hoods (62) are fixedly installed on the annular cylinder (61). A suction pump (64) is fixedly installed on one side of the mounting base (1). A suction pipe (65) and a gas delivery pipe (66) are also fixedly installed on the suction pump (64). The end of the suction pipe (65) is fixedly connected to the annular cylinder (61) and communicates with it. The end of the gas delivery pipe (66) is fixedly connected to the side wall of the mounting base (1) and communicates with the storage chamber (11). A liftable cover (2) is installed above the mounting base (1). A vent hole (21) is provided on the upper side wall of the cover (2). A spraying structure (5) is installed inside the cover (2).

2. The spraying equipment for paint mist recovery and recycling according to claim 1, characterized in that, The bottom of the shelf (3) is fixedly installed with multiple ring-shaped support rods (31), and the mounting base (1) is provided with a limiting socket (12) for the support rods (31) to be inserted.

3. The spraying equipment for paint mist recovery and recycling according to claim 2, characterized in that, The annular cylinder (61) is equipped with a plurality of hooks (63) that are rotatably connected to it, and the annular cylinder (61) is suspended from the support rod (31) by the hooks (63).

4. The spraying equipment for paint mist recovery and recycling according to claim 1, characterized in that, An annular baffle (41) is fixedly installed on the central annular wall of the storage chamber (11), and the filter plate (4) is placed on the annular baffle (41).

5. The spraying equipment for paint mist recovery and recycling according to claim 1, characterized in that, The end of the gas delivery pipe (66) extends to the center of the storage chamber (11) and is located near the bottom of the storage chamber (11).

6. The spraying equipment for paint mist recovery and recycling according to claim 1, characterized in that, The spraying structure (5) includes multiple L-shaped branch pipes (51) distributed in a ring inside the cover (2), and multiple nozzles (52) connected to each of the multiple L-shaped branch pipes (51) are fixedly installed. A drive motor (53) is also fixedly installed on the cover (2), and the ends of the multiple nozzles (52) are fixedly connected to the output end of the drive motor (53). The ends of the multiple nozzles (52) that are close to each other are also rotatably connected to a transfer cylinder (54). The transfer cylinder (54) is connected to multiple L-shaped branch pipes (51). A suction pump (55) is also fixedly installed on the side wall of the mounting base (1). A suction pipe (56) and a conveying pipe (57) are also fixedly installed on the suction pump (55). The end of the suction pipe (56) is fixedly connected to the side wall of the mounting base (1) and communicates with the bottom of the storage chamber (11). The end of the conveying pipe (57) is fixedly connected to the transfer cylinder (54) and communicates with each other.

7. The spraying equipment for paint mist recovery and recycling according to claim 6, characterized in that, The conveying pipe (57) is formed by connecting a rigid pipe and a flexible pipe. The section of the conveying pipe (57) inside the cover (2) is a rigid pipe, and the section of the conveying pipe (57) outside the cover (2) is a flexible pipe.

8. The spraying equipment for paint mist recovery and recycling according to claim 1, characterized in that, A lifting structure (7) is installed on the side wall of the mounting base (1). The lifting structure (7) includes a cylinder (71) fixedly installed on the side wall of the mounting base (1), and a piston rod (72) is fixedly installed at the output end of the cylinder (71). The upper end of the piston rod (72) is fixedly connected to the side wall of the cover (2).

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