A recycling device for powder spraying

Abstract

The utility model discloses a kind of recovery devices for powder spraying, including spraying box, recycling seat, vibration shake powder collecting hopper and negative pressure fan, the recycling seat is fixed in the bottom of spraying box, the bottom of vibration shake powder collecting hopper is provided with neck of bucket, and neck of bucket is slidably connected with recycling seat by linear bearing sleeve, and the lower end of neck of bucket is fixedly installed with filter assembly;Compared with prior art, the utility model is provided with vibration shake powder collecting hopper in recycling seat on spraying box, and vibration mechanism is arranged between vibration shake powder collecting hopper and recycling seat, cam can be rotated using motor drive, slider in vibration chute is driven to move up and down, so as to drive vibration shake powder collecting hopper to vibrate up and down, so that powder on the surface of vibration shake powder collecting hopper can be better shaken into filter assembly in negative pressure tank, so as to complete cleaning and collection work of powder, without manual intervention, greatly improve cleaning and recovery effect.

Description

Technical Field

[0001] This utility model relates to the field of powder coating technology, specifically to a recycling device for powder coating. Background Technology

[0002] Powder coating is a process in which powder coating is applied to the surface of a workpiece using powder spraying equipment. Under the action of electrostatics, the powder will be evenly adsorbed onto the surface of the workpiece to form a powdery coating. The powdery coating is then baked at high temperature to flow and cure, resulting in a final coating with different effects.

[0003] Currently, during powder coating operations, 20-50% of the powder fails to be coated onto the workpiece and remains suspended or scattered within the powder coating chamber. Therefore, to prevent waste, it is necessary to clean and recycle the powder in the powder coating chamber after the coating operation is completed. However, the limited infrastructure within the powder coating chamber makes the cleaning and recycling work difficult to complete. Some methods have added a recycling tank with negative pressure suction at the bottom of the powder coating chamber, but the negative pressure is limited, resulting in a large amount of powder still adhering to the bottom of the powder coating chamber, requiring secondary manual cleaning, which is inconvenient. Therefore, this utility model proposes a recycling device for powder coating. Utility Model Content

[0004] The purpose of this invention is to provide a recycling device for powder coating to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a recycling device for powder coating, comprising a coating box, a recycling seat, a vibrating powder collection hopper, and a negative pressure fan. The recycling seat is fixed to the bottom of the coating box. The bottom of the vibrating powder collection hopper is provided with a hopper neck, which is slidably connected to the recycling seat via a linear bearing sleeve. A filter assembly is fixedly installed at the lower end of the hopper neck. A negative pressure box is provided outside the filter assembly and is fixedly installed on the lower surface of the recycling seat. The bottom of the negative pressure box is fixedly installed on the air inlet pipe of the negative pressure fan via a connecting pipe. A connecting ring is fixedly connected to the top outer surface of the vibrating powder collection hopper, and both ends of the connecting ring are movably installed on the recycling seat via a vibration mechanism.

[0006] As a preferred technical solution of this utility model, the vibration mechanism includes a motor installed on the recycling seat and vibration grooves opened on the vertical inner walls on both sides of the recycling seat. A slider is slidably installed in the vibration groove, and the slider is fixedly connected to the connecting ring. A cam is drivenly connected to the output shaft of the motor, and the cam is disposed in the vibration groove and located below the slider.

[0007] As a preferred technical solution of this utility model, a spring is installed at the upper end of the slider, and the upper end of the spring is connected to the top inner wall of the vibration groove.

[0008] As a preferred technical solution of this utility model, the upper end of the filter assembly is fixedly connected to the bucket neck through a mounting connector.

[0009] As a preferred technical solution of this utility model, the filter assembly includes a support mesh frame disposed at the lower end of the mounting connector, and a filter bag is sleeved on the outer surface of the support mesh frame.

[0010] As a preferred technical solution of this utility model, the negative pressure fan is provided with an air outlet pipe at the end away from the connecting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a powder coating recycling device. It includes a vibrating powder collection hopper installed within a recycling seat on a coating box, and a vibration mechanism between the hopper and the recycling seat. A motor drives a cam to rotate, causing a slider within a vibrating groove to move up and down, thus vibrating the powder collection hopper. This allows the powder on the hopper's surface to be better shaken into a filter assembly within a negative pressure chamber, completing the powder cleaning and collection process without manual intervention, significantly improving the cleaning and recycling efficiency.

[0013] Other features and advantages of this invention will be described in detail in the following specific embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0016] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model.

[0017] In the diagram: 1. Spraying box; 2. Recycling seat; 3. Vibrating powder collection hopper; 4. Negative pressure box; 5. Filter assembly; 6. Connecting pipe; 7. Negative pressure fan; 8. Motor; 20. Linear bearing sleeve; 21. Vibrating chute; 22. Spring; 23. Sliding block; 30. Hopper neck; 31. Connecting ring; 50. Mounting connector; 51. Support frame; 52. Filter bag; 70. Air outlet pipe; 80. Cam. Detailed Implementation

[0018] 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.

[0019] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Please see Figures 1-3In this embodiment, a recovery device for powder coating is provided, including a coating box 1, a recovery base 2, a vibrating powder collection hopper 3, and a negative pressure fan 7. The recovery base 2 is fixed to the bottom of the coating box 1. The bottom of the vibrating powder collection hopper 3 is provided with a hopper neck 30, and the hopper neck 30 is slidably connected to the recovery base 2 through a linear bearing sleeve 20. A filter assembly 5 is fixedly installed at the lower end of the hopper neck 30. A negative pressure box 4 is provided outside the filter assembly 5, and the negative pressure box 4 is fixedly installed on the lower surface of the recovery base 2. The bottom of the negative pressure box 4 is fixedly installed on the air inlet pipe of the negative pressure fan 7 through a connecting pipe 6. A connecting ring 31 is fixedly connected to the top outer surface of the 3, and both ends of the connecting ring 31 are movably mounted on the recycling seat 2 via a vibration mechanism. The vibration mechanism includes a motor 8 mounted on the recycling seat 2 and vibration grooves 21 formed on the vertical inner walls on both sides of the recycling seat 2. A slider 23 is slidably mounted in the vibration groove 21, and the slider 23 is fixedly connected to the connecting ring 31. A cam 80 is drivenly connected to the output shaft of the motor 8. The cam 80 is located in the vibration groove 21 and below the slider 23. A spring 22 is mounted on the upper end of the slider 23, and the upper end of the spring 22 is connected to the top of the vibration groove 21. On the wall, when the cam 80 rotates upward to contact the slider 23, the spring 22 is compressed. When the cam 80 rotates downward, the slider 23 separates from the cam 80, and the spring 22 returns to its original position. Specifically, the motor 8 drives the cam 80 to rotate. When the protruding part of the cam 80 contacts the slider 23, the slider 23 is lifted, and the spring 22 is compressed and stores energy. When the protruding part of the cam 80 rotates downward, the spring 22 releases energy, causing the slider 23 and the connecting ring 31 to return to their original position downward. This reciprocating motion causes the vibrating powder collecting hopper 3 to vibrate vertically, causing the powder adhering to its inner wall to fall off. The negative pressure fan 7 has an outlet pipe 70 at the end away from the connecting pipe 6. A vibrating powder collection hopper 3 is installed in the recovery seat 2 on the spray box 1, and a vibration mechanism is installed between the vibrating powder collection hopper 3 and the recovery seat 2. The motor 8 drives the cam 80 to rotate, which drives the slider 23 in the vibrating slide 21 to move up and down, thereby driving the vibrating powder collection hopper 3 to vibrate up and down. This allows the powder on the surface of the vibrating powder collection hopper 3 to be better shaken into the filter component 5 in the negative pressure box 4, thus completing the cleaning and collection of powder without manual intervention, greatly improving the cleaning and recycling effect.

[0022] In this embodiment, the upper end of the filter assembly 5 is fixedly connected to the bucket neck 30 via a mounting connector 50. Specifically, the mounting connector 50 is a flange structure, which is sealed to the lower end of the bucket neck 30 with bolts to ensure no leakage during powder conveying. The filter assembly 5 includes a support frame 51 disposed at the lower end of the mounting connector 50. The support frame 51 is made of stainless steel and has a cylindrical mesh structure with a mesh diameter of 2-3 cm. It provides sufficient mechanical strength to support the filter bag 52 while allowing powder to pass through the frame. A filter bag 52 is fitted onto the outer surface of the support frame 51. The filter bag 52 is made of antistatic polyester fiber and covered with a PTFE microporous membrane, which can efficiently intercept powder particles with a diameter ≥5 μm while allowing airflow. The upper end of the filter bag 52 is securely connected to the top of the support frame 51 via a detachable strap for easy disassembly, cleaning, or replacement.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A recycling device for powder coating, characterized in that, The device includes a spray box (1), a recycling seat (2), a vibrating powder collection hopper (3), and a negative pressure fan (7). The recycling seat (2) is fixed to the bottom of the spray box (1). The bottom of the vibrating powder collection hopper (3) is provided with a neck (30), and the neck (30) is slidably connected to the recycling seat (2) through a linear bearing sleeve (20). A filter assembly (5) is fixedly installed at the lower end of the neck (30). A negative pressure box (4) is provided outside the filter assembly (5), and the negative pressure box (4) is fixedly installed on the lower surface of the recycling seat (2). The bottom of the negative pressure box (4) is fixedly installed on the air inlet pipe of the negative pressure fan (7) through a connecting pipe (6). A connecting ring (31) is fixedly connected to the top outer surface of the vibrating powder collection hopper (3), and the two ends of the connecting ring (31) are movably installed on the recycling seat (2) through a vibration mechanism.

2. The recycling device for powder coating according to claim 1, characterized in that, The vibration mechanism includes a motor (8) mounted on the recycling seat (2) and vibration grooves (21) opened on the vertical inner walls on both sides of the recycling seat (2). A slider (23) is slidably installed in the vibration groove (21). The slider (23) is fixedly connected to the connecting ring (31). A cam (80) is drivenly connected to the output shaft of the motor (8). The cam (80) is set in the vibration groove (21) and located below the slider (23).

3. A recycling device for powder coating according to claim 2, characterized in that, A spring (22) is installed at the upper end of the slider (23), and the upper end of the spring (22) is connected to the top inner wall of the vibration groove (21).

4. A recycling device for powder coating according to claim 1, characterized in that, The upper end of the filter assembly (5) is fixedly connected to the neck (30) via a mounting connector (50).

5. A recycling device for powder coating according to claim 4, characterized in that, The filter assembly (5) includes a support frame (51) disposed at the lower end of the mounting connector (50), and a filter bag (52) is fitted on the outer surface of the support frame (51).

6. A recycling device for powder coating according to claim 1, characterized in that, The negative pressure fan (7) has an air outlet pipe (70) at the end away from the connecting pipe (6).

Images