Powder recovery device for a powder coating outlet

Abstract

This utility model discloses a powder recovery device for powder coating outlets, including a spray gun and an annular recovery hood. The annular recovery hood is fitted onto the nozzle of the spray gun. By fitting the annular recovery hood onto the nozzle of the spray gun and cooperating with the recovery cylinder and adsorption assembly, an effective powder recovery system can be formed. During the powder coating spraying process, the powder coating escaping from the nozzle of the spray gun is quickly collected by the annular recovery hood and transported to the recovery cylinder through a flexible tube under the negative pressure generated by the adsorption assembly. This efficient recovery mechanism greatly reduces the waste of powder coating, enabling enterprises to make full use of the recovered powder for re-spraying, thereby significantly reducing the purchase cost of powder coating and improving the economic benefits of enterprises. At the same time, it reduces the dust concentration in the workshop, improves the working environment, and greatly reduces the risk of operators inhaling powder coating, protecting the health of operators.

Description

Technical Field

[0001] This utility model relates to the technical field of powder coating spraying equipment, specifically a powder recovery device for a powder coating outlet. Background Technology

[0002] In modern industrial production, powder coating technology has been widely used in many industries such as automobile manufacturing, home appliance production, and building decoration due to its many advantages such as environmental protection, high efficiency, and excellent coating performance. The powder coating process mainly utilizes the principle of electrostatic adsorption to uniformly spray powder coating onto the surface of the workpiece, and then cures it at high temperature to form a uniform, dense coating with good protective and decorative properties.

[0003] However, in the actual operation of powder coating spraying, there is a lack of effective recycling mechanism for the powder coating that escapes from the powder outlet. This escaped powder coating not only causes serious waste of resources, but also has many adverse effects on the production environment and the health of operators. Therefore, we need to propose a powder recycling device for the powder coating outlet. Utility Model Content

[0004] The purpose of this invention is to provide a powder recovery device for a powder coating outlet. By using an annular recovery hood, a recovery cylinder, and an adsorption component in combination, an effective powder recovery system can be formed to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A powder recovery device for a powder coating outlet includes: a spray gun and an annular recovery cover; the annular recovery cover is fitted onto the nozzle of the spray gun, two sets of positioning rods are fixedly connected to the outer wall of the spray gun, and two sets of sliding rods are fixedly connected to one side of the annular recovery cover. The two sets of sliding rods are slidably inserted into the interior of the two sets of positioning rods, and locking components for quickly positioning the sliding rods are respectively provided on one side wall of the two sets of positioning rods.

[0007] One end of the spray gun is fixedly connected to a recovery cylinder, and the recovery cylinder is equipped with an adsorption component for cooperating with the annular recovery hood to recover the powder coating that escapes from the spray gun nozzle.

[0008] Preferably, the adsorption assembly includes a negative pressure fan, a filter element, and a flexible tube;

[0009] The negative pressure fan is fixedly installed on one side of the recovery cylinder, the filter element is fixedly installed inside the recovery cylinder, and the flexible tube connects the recovery cylinder to the annular recovery hood.

[0010] Preferably, the bottom of the recycling cylinder is fixedly connected to a discharge pipe, and the bottom of the discharge pipe is provided with a sealing cap.

[0011] Preferably, the locking assembly includes a positioning shell, which is fixedly installed on one side wall of the positioning rod. A movable block is slidably inserted inside the positioning shell. One end of the movable block passes through the positioning rod and is inserted into the inside of the slide rod. A spring is fixedly connected to the other end of the movable block. One end of the spring is fixedly connected to one inner wall of the positioning shell.

[0012] Preferably, it also includes a pull rod, which is slidably inserted into one side wall of the positioning shell, one end of the pull rod passes through the positioning shell and is fixedly connected to one end of the movable block, and the spring is movably sleeved on the outer wall of the pull rod.

[0013] Preferably, a plurality of positioning grooves are provided on one side wall of the slide rod, and a wedge-shaped part adapted to the positioning groove is provided at one end of the movable block, and the wedge-shaped part is inserted into the interior of the corresponding positioning groove.

[0014] Preferably, the annular recycling hood includes an annular shell, a cover plate, and several sets of through slots. The annular shell is connected to a flexible tube, the cover plate is bolted to the inside of the annular shell, and the several sets of through slots are arranged in a ring array on the outer wall of the annular shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, by incorporating an annular recovery hood at the spray gun nozzle, and cooperating with a recovery cylinder and adsorption components, forms an effective powder recovery system. During powder coating application, the powder coating escaping from the spray gun nozzle is rapidly collected by the annular recovery hood and, under the negative pressure generated by the adsorption components, transported through a flexible tube to the recovery cylinder. This highly efficient recovery mechanism significantly reduces powder coating waste, enabling companies to fully utilize the recovered powder for recoating, thereby significantly reducing powder coating procurement costs and improving the company's economic efficiency. Simultaneously, it reduces dust concentration in the workshop, improves the working environment, and greatly reduces the risk of operators inhaling powder coating, protecting their health. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the annular recovery hood, recovery cylinder and adsorption assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the locking component of this utility model.

[0021] In the diagram: 1. Spray gun; 2. Annular recovery hood; 21. Annular shell; 22. Cover plate; 23. Through groove; 3. Positioning rod; 4. Slide rod; 5. Locking assembly; 501. Positioning shell; 502. Movable block; 503. Spring; 504. Pull rod; 6. Recovery cylinder; 7. Adsorption assembly; 701. Negative pressure fan; 702. Filter element; 703. Flexible tube; 8. Wedge-shaped part; 9. Discharge pipe; 10. Positioning groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A powder recovery device for a powder coating outlet includes: a spray gun 1 and an annular recovery cover 2. The annular recovery cover 2 is fitted around the nozzle of the spray gun 1. This fitting method can tightly surround the nozzle of the spray gun 1 to form a relatively closed and effective powder collection area. Two sets of positioning rods 3 are fixedly connected to the outer wall of the spray gun 1. The positioning rods 3 provide basic support for the subsequent position adjustment of the annular recovery cover 2. Two sets of sliding rods 4 are fixedly connected to one side of the annular recovery cover 2. The two sets of sliding rods 4 are slidably inserted into the interior of the two sets of positioning rods 3. Locking components 5 for quick positioning of the sliding rods 4 are respectively provided on the side wall of the two sets of positioning rods 3. Through this sliding insertion structure, the annular recovery cover 2 can move flexibly within the range of the positioning rods 3 to adapt to the needs of different spraying scenarios and workpiece shapes for the recovery position. A recovery cylinder 6 is fixedly connected to one end of the spray gun 1. An adsorption component 7 is provided on the recovery cylinder 6 for cooperating with the annular recovery cover 2 to recover the powder coating escaping from the nozzle of the spray gun 1.

[0025] The adsorption assembly 7 includes a negative pressure fan 701, a filter element 702, and a flexible tube 703. The negative pressure fan 701 is fixedly installed on one side of the recovery cylinder 6, the filter element 702 is fixedly installed inside the recovery cylinder 6, and the flexible tube 703 connects the recovery cylinder 6 to the annular recovery hood 2. The negative pressure fan 701 is the power source for generating negative pressure. When the negative pressure fan 701 is started, it can create a negative pressure environment inside the recovery cylinder 6, thereby causing external air to carry the escaped powder coating into the recovery cylinder 6 through the flexible tube 703. The main function of the filter element 702 is to filter the air and powder mixture entering the recovery cylinder 6, intercepting the powder coating inside the recovery cylinder 6, while allowing clean air to be discharged, preventing the powder coating from being discharged with the air and causing secondary pollution, and also ensuring the normal operation of the negative pressure fan 701. The flexible tube 703 connects the recovery cylinder 6 to the annular recovery hood 2. It has good flexibility and sealing performance, and can bend freely as the position of the annular recovery hood 2 moves, ensuring that the powder recovery channel is always unobstructed.

[0026] The bottom of the recycling cylinder 6 is fixedly connected to a discharge pipe 9, and the bottom of the discharge pipe 9 is equipped with a sealing cap. The discharge pipe 9 is designed to facilitate the discharge of the powder coating collected in the recycling cylinder 6 for subsequent processing or reuse. When the powder coating in the recycling cylinder 6 accumulates to a certain amount, the operator can open the sealing cap and discharge the powder coating through the discharge pipe 9. The operation is simple and convenient.

[0027] The locking assembly 5 includes a positioning shell 501, which is fixedly installed on one side wall of the positioning rod 3. A movable block 502 is slidably inserted into the interior of the positioning shell 501. One end of the movable block 502 passes through the positioning rod 3 and is inserted into the interior of the slide rod 4. The other end of the movable block 502 is fixedly connected to a spring 503. One end of the spring 503 is fixedly connected to the inner wall of one side of the positioning shell 501. When the movable block 502 is inserted into the interior of the slide rod 4, it can fix the slide rod 4 in a specific position of the positioning rod 3, thereby locking the position of the annular recovery cover 2. The function of the spring 503 is to provide a spring force to the movable block 502 in the direction of the slide rod 4, so that the movable block 502 can always remain inserted into the interior of the slide rod 4 when there is no external force, ensuring the stability of the locking.

[0028] It also includes a pull rod 504, which is slidably inserted into one side wall of the positioning shell 501. One end of the pull rod 504 passes through the positioning shell 501 and is fixedly connected to one end of the movable block 502. The spring 503 is movably sleeved on the outer wall of the pull rod 504. The presence of the pull rod 504 provides the operator with a component to easily control the movement of the movable block 502. When it is necessary to adjust the position of the annular recovery cover 2, the operator only needs to pull the pull rod 504. The pull rod 504 will drive the movable block 502 to move away from the slide rod 4 against the elastic force of the spring 503, so that the movable block 502 is pulled out from the positioning groove 10 of the slide rod 4. At this time, the slide rod 4 can slide freely in the positioning rod 3, and the position of the annular recovery cover 2 can also be adjusted accordingly. After adjusting to the appropriate position, the pull rod 504 is released, and the movable block 502 will re-insert into the corresponding positioning groove 10 under the action of the spring 503, thus completing the locking.

[0029] Several sets of positioning grooves 10 are provided on one side wall of the slide bar 4. One end of the movable block 502 is provided with a wedge-shaped part 8 that matches the positioning groove 10. The wedge-shaped part 8 is inserted into the interior of the corresponding positioning groove 10. These positioning grooves 10 provide multiple adjustable position selections for the annular recycling cover 2. The design of the wedge-shaped part 8 makes the movable block 502 more smoothly inserted into the positioning groove 10, and can also better withstand the force generated when the slide bar 4 slides in the positioning rod 3, ensuring the reliability of locking. When it is necessary to move the slide bar 4, the inclined surface design of the wedge-shaped part 8 can make the movable block 502 automatically exit the positioning groove 10 when it is squeezed by the slide bar 4, thus unlocking.

[0030] The annular recovery hood 2 includes an annular shell 21, a cover plate 22, and several sets of through slots 23. The annular shell 21 is connected to the flexible tube 703 and is the main structure of the annular recovery hood 2. It is connected to the flexible tube 703 and provides a channel for the collection and transportation of powder. The cover plate 22 is bolted to the inside of the annular shell 21. This detachable connection method facilitates the cleaning and maintenance of the inside of the annular recovery hood 2. Several sets of through slots 23 are arranged in a ring array on the outer wall of the annular shell 21. The function of the through slots 23 is to increase the collection range and efficiency of the annular recovery hood 2 for the escaped powder. When the spray gun 1 sprays, the powder coating that escapes from the nozzle can enter the annular shell 21 through these through slots 23 and be recovered by the adsorption component 7.

[0031] During the powder coating process, the negative pressure fan 701 is started, and the negative pressure fan 701 generates a negative pressure environment in the recovery cylinder 6. Since the annular recovery hood 2 is connected to the recovery cylinder 6 through the flexible tube 703, a negative pressure is also formed inside the annular recovery hood 2. When powder coating escapes from the nozzle of the spray gun 1, the escaped powder coating will enter the interior of the annular housing 21 through the through groove 23 on the outer wall of the annular housing 21 under the action of negative pressure, and then be sucked into the recovery cylinder 6 along the flexible tube 703. In the recovery cylinder 6, the air carries the powder coating through the filter element 702. The powder coating is intercepted by the filter element 702 and collected in the recovery cylinder 6, while the clean air is discharged through the negative pressure fan 701.

[0032] When it is necessary to adjust the relative position of the annular recovery hood 2 and the nozzle of the spray gun 1, the operator pulls the lever 504. The lever 504 drives the movable block 502 to move away from the slide rod 4, overcoming the elastic force of the spring 503. This causes the wedge-shaped part 8 of the movable block 502 to be pulled out of the positioning groove 10 of the slide rod 4. At this time, the slide rod 4 can slide freely in the positioning rod 3. The operator moves the annular recovery hood 2 according to actual needs, causing the slide rod 4 to slide in the positioning rod 3. When the annular recovery hood 2 moves to the appropriate position, the lever 504 is released. The movable block 502 is reinserted into the corresponding positioning groove 10 under the action of the spring 503, thus locking the position of the annular recovery hood 2. This ensures that the annular recovery hood 2 can always be in the optimal powder recovery position. When the powder coating collected in the recovery cylinder 6 accumulates to a certain amount, the sealing cap at the bottom of the discharge pipe 9 is opened to discharge the powder coating for subsequent processing or reuse.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder recovery device for a powder coating outlet, characterized in that, include: The spray gun (1) and the annular recovery hood (2); The annular recovery cover (2) is fitted onto the nozzle of the spray gun (1). Two sets of positioning rods (3) are fixedly connected to the outer wall of the spray gun (1). Two sets of sliding rods (4) are fixedly connected to one side of the annular recovery cover (2). The two sets of sliding rods (4) are slidably inserted into the interior of the two sets of positioning rods (3). Locking components (5) for quickly positioning the sliding rods (4) are respectively provided on one side wall of the two sets of positioning rods (3). One end of the spray gun (1) is fixedly connected to a recovery cylinder (6), and the recovery cylinder (6) is provided with an adsorption component (7) for cooperating with the annular recovery cover (2) to recover the powder coating that escapes from the nozzle of the spray gun (1).

2. The powder recovery device for a powder coating outlet according to claim 1, characterized in that: The adsorption assembly (7) includes a negative pressure fan (701), a filter element (702), and a flexible tube (703); The negative pressure fan (701) is fixedly installed on one side of the recovery cylinder (6), the filter element (702) is fixedly installed inside the recovery cylinder (6), and the flexible tube (703) connects the recovery cylinder (6) to the annular recovery cover (2).

3. The powder recovery device for a powder coating outlet according to claim 1, characterized in that: The bottom of the recycling cylinder (6) is fixedly connected to a discharge pipe (9), and a sealing cap is provided at the bottom of the discharge pipe (9).

4. The powder recovery device for a powder coating outlet according to claim 1, characterized in that: The locking assembly (5) includes a positioning shell (501), which is fixedly installed on one side wall of the positioning rod (3). A movable block (502) is slidably inserted inside the positioning shell (501). One end of the movable block (502) passes through the positioning rod (3) and is inserted into the inside of the slide rod (4). The other end of the movable block (502) is fixedly connected to a spring (503), and one end of the spring (503) is fixedly connected to the inner wall of one side of the positioning shell (501).

5. A powder recovery device for a powder coating outlet according to claim 4, characterized in that: It also includes a pull rod (504), which is slidably inserted into one side wall of the positioning shell (501). One end of the pull rod (504) passes through the positioning shell (501) and is fixedly connected to one end of the movable block (502). The spring (503) is movably sleeved on the outer wall of the pull rod (504).

6. A powder recovery device for a powder coating outlet according to claim 5, characterized in that: Several sets of positioning grooves (10) are provided on one side wall of the slide rod (4), and a wedge-shaped part (8) adapted to the positioning groove (10) is provided at one end of the movable block (502). The wedge-shaped part (8) is inserted into the interior of the corresponding positioning groove (10).

7. A powder recovery device for a powder coating outlet according to claim 2, characterized in that: The annular recycling hood (2) includes an annular shell (21), a cover plate (22) and several sets of through slots (23). The annular shell (21) is connected to a flexible tube (703). The cover plate (22) is bolted to the inside of the annular shell (21). Several sets of through slots (23) are arranged in an annular array on the outer wall of the annular shell (21).

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