A fluidized bed apparatus for dip coating

Abstract

This utility model discloses a fluidized bed dip coating device, including a fluidized bed body. A cover plate is hinged to the top of the fluidized bed body, and a lifting plate is connected to the top of the cover plate via a lifting mechanism. A transmission cavity is opened in the lifting plate, and a first synchronous pulley and a second synchronous pulley are arranged in the transmission cavity. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive. The bottom of the first synchronous pulley and the second synchronous pulley are provided with a connecting shaft that penetrates the cover plate and extends downward. The lifting mechanism can drive two mounting plates connected to the lifting plate to move vertically up and down, thereby adjusting the height between the hook and the thermoplastic powder according to the dip coating requirements of different materials, improving the adaptability of the device. A servo motor can drive the first synchronous pulley and the second synchronous pulley to rotate, thereby causing the two mounting plates to rotate, so that the material can have more complete contact with the thermoplastic powder during the dip coating process, thereby improving the dip coating efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the technical field of metal component processing equipment, specifically to a dip-coating fluidized bed device. Background Technology

[0002] Dip coating is a plastic coating process. Depending on the raw materials used, dip coating can be divided into liquid dip coating and powder dip coating. Powder dip coating is often used for coating the surface of metal components. Its characteristic is that the powder coating is strong and hard. The dip coating process involves preheating the workpiece to above the melting point of the powder coating after degreasing. The workpiece is then immersed in a fluidized bed where the powder adheres evenly. Then, the plasticized polymer crosslinks and flows to form a steel-plastic composite product. Thermoplastic powder coatings have the characteristics of softening after preheating and curing into a film after cooling. It is mainly a physical melting and plasticizing film-forming process.

[0003] Most of the materials used in dip coating processes are thermoplastic powders, such as polyethylene, polyvinyl chloride, and polytetrachloroethylene. These are suitable for non-toxic coatings and are used for general decoration, corrosion protection, and wear resistance. Fluidized bed dip coating process utilizes fluidized powdered plastic to form an organic film on the workpiece, thereby obtaining steel-plastic composite products with excellent properties such as decoration, corrosion protection, and insulation. Dip-coated products have been widely used in various aspects of production and life both domestically and internationally.

[0004] However, in the existing technology, during the process of placing metal components into a fluidized bed for dip coating, the contact between the metal components and the thermoplastic powder in the fluidized bed is insufficient, resulting in uneven dip coating and generally poor quality of the dip coating of the metal components. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a dip-coating fluidized bed device, which solves the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed device for dip coating, comprising a fluidized bed body, a cover plate hinged to the top of the fluidized bed body, a lifting plate connected to the top of the cover plate via a lifting mechanism, a transmission cavity provided in the lifting plate, a first synchronous pulley and a second synchronous pulley provided in the transmission cavity, the first synchronous pulley and the second synchronous pulley being connected by a synchronous belt drive, a connecting shaft extending downward through the cover plate and provided at the bottom of both the first synchronous pulley and the second synchronous pulley, a mounting plate being detachably connected to the bottom of the connecting shaft, a plurality of hooks being provided at the bottom of the mounting plate, a servo motor being mounted on the mounting plate, and the output shaft of the servo motor being mounted on the first synchronous pulley.

[0009] Preferably, the plurality of hooks are arranged at intervals along the circumferential direction.

[0010] Preferably, a mounting bracket is installed on the cover plate, a hydraulic cylinder is installed on the top of the mounting bracket, and the output end of the hydraulic cylinder is installed on the lifting plate.

[0011] Preferably, the cover plate and the fluidized bed body are hinged together by two mutually symmetrical hinges.

[0012] Preferably, a negative pressure fan is provided on the cover plate, a recycling pipe penetrating the cover plate is provided at the air inlet end of the negative pressure fan, a material pipe is provided at the air outlet end of the negative pressure fan, and a recycling box is provided at the end of the material pipe away from the negative pressure fan.

[0013] Preferably, the top of the two mounting plates is provided with a connecting block, and the connecting block has a mating hole for inserting a connecting shaft.

[0014] Preferably, the connecting block and the connecting shaft are connected and fixed by connecting bolts.

[0015] Compared with the prior art, this utility model provides a fluidized bed dip coating device with the following advantages: Through the coordinated structure of a lifting mechanism, a first synchronous wheel, a second synchronous wheel, mounting plates, and hooks, the lifting mechanism drives the two mounting plates connected to the lifting plate to move vertically up and down. This allows for adjustment of the height between the hooks and the thermoplastic powder to meet the dip coating requirements of different materials, improving the adaptability of the device. Furthermore, a servo motor drives the first and second synchronous wheels to rotate, causing the two mounting plates to rotate, thus enabling the material to make more complete contact with the thermoplastic powder during the dip coating process, thereby improving dip coating efficiency and quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the fluidized bed body, mounting plate, first synchronous wheel, and second synchronous wheel of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the cover plate and fluidized bed body of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the first synchronous wheel and cover plate of this utility model;

[0020] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0021] The components include: 1. Fluidized bed body; 2. Cover plate; 3. Mounting frame; 4. Servo motor; 5. Hydraulic cylinder; 6. Lifting plate; 7. Negative pressure fan; 8. Material pipe; 9. Recovery box; 10. Transmission chamber; 11. Recovery pipe; 12. Connecting shaft; 13. Mounting plate; 14. Connecting block; 15. Hook; 16. First synchronous pulley; 17. Synchronous belt; 18. Second synchronous pulley; 19. Connecting bolts. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-5 A fluidized bed device for dip coating includes a fluidized bed body 1. A cover plate 2 is hinged to the top of the fluidized bed body 1. A lifting plate 6 is connected to the top of the cover plate 2 via a lifting mechanism. A transmission cavity 10 is provided in the lifting plate 6. A first synchronous pulley 16 and a second synchronous pulley 18 are provided in the transmission cavity 10. The first synchronous pulley 16 and the second synchronous pulley 18 are connected by a synchronous belt 17. A connecting shaft 12 is provided at the bottom of both the first synchronous pulley 16 and the second synchronous pulley 18, penetrating the cover plate 2 and extending downward. A mounting plate 13 is detachably connected to the bottom of the connecting shaft 12. A plurality of hooks 15 are provided at the bottom of the mounting plate 13. A servo motor 4 is mounted on the mounting plate 13. The output shaft of the servo motor 4 is mounted on the first synchronous pulley 16.

[0026] Through the coordinated structure of the lifting mechanism, the first synchronous wheel 16, the second synchronous wheel 18, the mounting plate 13, and the hook 15, the lifting mechanism can drive the two mounting plates 13 connected to the lifting plate 6 to move vertically up and down. This allows the height between the hook 15 and the thermoplastic powder to be adjusted according to the dip coating requirements of different materials, improving the adaptability of the device. Furthermore, the servo motor 4 can drive the first synchronous wheel 16 and the second synchronous wheel 18 to rotate, thereby causing the two mounting plates 13 to rotate. This allows the material to have more complete contact with the thermoplastic powder during the dip coating process, thus improving the dip coating efficiency and quality.

[0027] Specifically, in this embodiment, multiple hooks 15 are arranged at intervals along the circumferential direction.

[0028] The hooks 15, arranged at intervals along the circumference, allow multiple materials to be hung at once for dip coating, improving work efficiency.

[0029] Specifically, in this embodiment, a mounting bracket 3 is installed on the cover plate, a hydraulic cylinder 5 is installed on the top of the mounting bracket 3, and the output end of the hydraulic cylinder 5 is installed on the lifting plate 6.

[0030] During use, the lifting plate 6 can be vertically raised and lowered by the hydraulic cylinder 5, thereby adjusting the height between the hook 15 and the thermoplastic powder.

[0031] Specifically, in this embodiment, the cover plate 2 and the fluidized bed body 1 are hinged together by two mutually symmetrical hinges.

[0032] Specifically, in this embodiment, a negative pressure fan 7 is provided on the cover plate 2, a recycling pipe 11 is provided at the air inlet end of the negative pressure fan 7 and passes through the cover plate 2, a material pipe 8 is provided at the air outlet end of the negative pressure fan 7, and a recycling box 9 is provided at the end of the material pipe 8 away from the negative pressure fan 7.

[0033] The negative pressure fan 7 and the recycling box 9 facilitate the recycling of plastic powder, preventing the powder from flying out of the fluidized bed and scattering in the air, thus avoiding air pollution and reducing powder waste.

[0034] Specifically, in this embodiment, the top of the two mounting plates 13 is provided with a connecting block 14, and the connecting block 14 is provided with a mating hole for the connecting shaft 12 to be inserted. The connecting block 14 and the connecting shaft 12 are connected and fixed by a connecting bolt 19.

[0035] The mutual cooperation of the connecting block 14 and connecting bolt 19 facilitates quick assembly and disassembly between the mounting plate 13 and the connecting shaft 12, and makes it easy to replace the mounting plate 13 with different sized hooks 15 according to production needs.

[0036] 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 dip plastic fluidized bed apparatus comprising a fluidized bed body, characterized by: The top of the fluidized bed body is hinged with a cover plate, and the top of the cover plate is connected to a lifting plate via a lifting mechanism. A transmission cavity is opened in the lifting plate, and a first synchronous pulley and a second synchronous pulley are arranged in the transmission cavity. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. The bottom of the first synchronous pulley and the second synchronous pulley are both provided with a connecting shaft that penetrates the cover plate and extends downward. The bottom of the connecting shaft is detachably connected to a mounting plate. The bottom of the mounting plate is provided with multiple hooks. A servo motor is mounted on the mounting plate, and the output shaft of the servo motor is mounted on the first synchronous pulley.

2. The dip-coating fluidized bed device according to claim 1, characterized in that: The multiple hooks are arranged at intervals along the circumferential direction.

3. The dip-coating fluidized bed device according to claim 1, characterized in that: A mounting bracket is installed on the cover plate, and a hydraulic cylinder is installed on the top of the mounting bracket. The output end of the hydraulic cylinder is installed on the lifting plate.

4. The dip-coating fluidized bed device according to claim 1, characterized in that: The cover plate and the fluidized bed body are hinged together by two mutually symmetrical hinges.

5. The dip-coating fluidized bed device according to claim 1, characterized in that: A negative pressure fan is installed on the cover plate. A recycling pipe that penetrates the cover plate is installed at the air inlet end of the negative pressure fan. A material pipe is installed at the air outlet end of the negative pressure fan. A recycling box is installed at the end of the material pipe away from the negative pressure fan.

6. The dip-coating fluidized bed device according to claim 1, characterized in that: The top of the two mounting plates is provided with a connecting block, and the connecting block has a mating hole for inserting a connecting shaft.

7. The dip-coating fluidized bed device according to claim 6, characterized in that: The connecting block and the connecting shaft are connected and fixed by connecting bolts.

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