Rotary molding powder dip-coating machine

The design of the rotary powder coating machine enables multi-dimensional coating and airflow removal, solving the problems of uneven coating and powder accumulation in the inner cavity in traditional manual powder coating, thus improving coating quality and production efficiency.

CN223931845UActive Publication Date: 2026-02-24HEBEI LUOKEHAN MOULD MFG CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520379163.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-24
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Traditional manual powder coating suffers from uneven coating and powder accumulation in internal cavities, making it particularly difficult to process larger or more complex parts.

Method used

A rotary powder coating machine was designed, including a fluidized bed, an actuation mechanism, a vertical motion component, a rotary motion component, and an air blowing component. It removes excess powder through multi-dimensional coating and airflow, ensuring coating uniformity and material recycling.

Benefits of technology

It improves coating quality and efficiency, reduces material waste, is suitable for complex-shaped workpieces, and reduces production costs and operational difficulty.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223931845U_ABST
    Figure CN223931845U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of dip-coating machines, and discloses a rotary molding powder dip-coating machine, which comprises a fluidized bed with an opening at the upper part, and molding powder is contained in the fluidized bed; the frame is fixed at the upper part of the fluidized bed outer side wall; the action mechanism is fixed on the frame and is also positioned at the upper part of the fluidized bed; the motion mechanism comprises a vertical motion assembly, a vertical motion mechanism and a vertical motion mechanism, the rotary motion assembly is fixed to the side, away from the frame, of the vertical motion assembly; the air blowing assembly is arranged on the side, away from the vertical movement assembly, of the rotary movement assembly, and the air blowing assembly is arranged on the lower portion of the rotary movement assembly. According to the rotary molding powder dip-coating machine, efficient dip-coating can be achieved, and accumulated powder in parts can be blown out.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of dip coating machine technology, and more specifically, to a rotary plastic powder dip coating machine. Background Technology

[0002] When powder coating parts, the dip coating method is usually used. This involves heating the parts to a suitable temperature and then immersing them in a fluidized bed containing powder coating. The powder adheres to the workpiece surface and is melted by the heat of the workpiece, firmly adhering to the surface. After all parts of the part have been in full contact with the powder coating, the part is removed from the fluidized bed, and excess powder on the inner and outer surfaces is blown back into the fluidized bed.

[0003] Powder coating offers advantages such as labor and material savings, and simple equipment and operation. Traditional powder coating of parts is typically done manually, which has certain limitations: First, the size of the parts being coated cannot be too large, making manual operation difficult for larger parts; second, uneven coating thickness and sagging are prone to occur, especially for parts with complex structures; third, excessively thick coatings can result from powder accumulation inside the parts' cavities that cannot be promptly removed.

[0004] Therefore, there is an urgent need for a rotary powder coating machine to solve the problems of uneven coating and powder accumulation in the inner cavity that exist in manual powder coating. Utility Model Content

[0005] In view of this, the present invention proposes a rotary plastic powder dip coating machine, which aims to solve the problems of uneven coating and powder accumulation in the inner cavity of manual plastic powder dip coating.

[0006] This utility model provides a rotary powder coating machine, comprising:

[0007] A fluidized bed with an opening at the top, the fluidized bed containing plastic powder;

[0008] The frame is fixed to the upper part of the outer wall of the fluidized bed;

[0009] An actuating mechanism, fixed to the frame, is also located above the fluidized bed; wherein the actuating mechanism includes:

[0010] A vertical motion component is fixed to the frame;

[0011] A rotary motion component is fixed to the side of the vertical motion component away from the frame;

[0012] An air blowing component is disposed on the side of the rotary motion component away from the vertical motion component, and the air blowing component is disposed at the lower part of the rotary motion component.

[0013] Furthermore, the vertical motion component includes:

[0014] A reciprocating motion element is mounted on the frame;

[0015] The worktable is fixed at the output end of the reciprocating motion element.

[0016] Furthermore, the reciprocating motion element includes:

[0017] Rodless cylinders or electric linear guides.

[0018] Furthermore, the rotary motion component includes:

[0019] A sealed enclosure is provided on the workbench;

[0020] The drive motor is fixed to the upper part of the sealed housing;

[0021] A transmission mechanism is disposed inside the sealed housing. The transmission mechanism includes a plurality of gears that mesh sequentially. The transmission mechanism is connected to the output end of the drive motor.

[0022] An output shaft is mounted on the transmission mechanism with one end away from the drive motor, and the other end of the output shaft extends out of the sealed housing.

[0023] Furthermore, the air blowing assembly includes:

[0024] A bearing seat is fixed on the outer wall of the sealed housing, and the bearing seat is also located on the upper part of the output shaft;

[0025] A hollow drive shaft is disposed inside the bearing seat, and the hollow drive shaft is connected to the bearing seat via a bearing.

[0026] Furthermore, the bearing includes:

[0027] The base is fixed to the outer wall of the sealed box;

[0028] The seat body is located on the side of the seat body away from the sealed housing;

[0029] The air supply interface is located on the seat.

[0030] Furthermore, the cavity drive shaft includes:

[0031] A shaft body is disposed within the seat body, and a shaft cavity is provided inside the shaft body;

[0032] The vent is formed on the side wall of the shaft.

[0033] Furthermore, the air blowing assembly also includes:

[0034] An air chamber is disposed between the bearing seat and the cavity drive shaft.

[0035] Compared with existing technologies, the advantages of this invention lie in the fact that the fluidized bed design ensures uniform powder distribution, thereby improving coating quality and reducing material waste. The upper opening of the fluidized bed facilitates workpiece placement and removal, simplifying operation and improving production efficiency. The frame not only provides stable support for the actuating mechanism but also ensures stable equipment operation and reduces the failure rate. The combination of the vertical and rotary motion components of the actuating mechanism allows for coating of workpieces in multiple dimensions, ensuring a uniform and seamless coating. This multi-angle coating method is particularly suitable for workpieces with complex shapes, greatly expanding the applicability and flexibility of the coating process. Furthermore, the rotary motion component makes the coating process smoother, reducing problems such as uneven coating thickness and dripping. The air-blowing component further optimizes the coating effect; by blowing air, excess powder can be effectively removed from the workpiece, while also facilitating powder recycling and reducing production costs. Overall, the rotary powder coating machine of this invention has significant advantages in improving coating efficiency, ensuring coating quality, reducing material waste, and enhancing operational convenience, and is of great significance for improving the overall level of industrial coating. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of the rotary powder coating machine provided in the embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of the rotary plastic powder dip coating machine during dip coating provided in the embodiment of this utility model;

[0039] Figure 3 A schematic diagram of the action mechanism provided in an embodiment of this utility model;

[0040] Figure 4 This is a schematic diagram of the structure of the vertical motion component provided in an embodiment of the present utility model;

[0041] Figure 5 This is a schematic diagram of the structure of the rotary motion component provided in an embodiment of the present utility model;

[0042] Figure 6 This is a schematic diagram of the internal structure of the rotary motion component provided in an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the structure of the air blowing assembly provided in an embodiment of the present utility model;

[0044] Figure 8 This is a schematic diagram of the structure of the bearing provided in an embodiment of the present utility model;

[0045] Figure 9 This is a schematic diagram of the structure of the cavity drive shaft provided in an embodiment of the present utility model;

[0046] Figure 10 A cross-sectional view of the air blowing assembly provided in an embodiment of this utility model.

[0047] In the diagram: 1. Fluidized bed; 2. Motion mechanism; 3. Frame; 4. Vertical motion component; 5. Rotary motion component; 6. Air blowing component; 7. Reciprocating motion element; 8. Worktable; 9. Drive motor; 10. Transmission mechanism; 11. Output shaft; 12. Sealing box; 13. Shaft seat; 13-1. Seat body; 13-2. Seat body; 13-3. Air source interface; 14. Cavity drive shaft; 14-1. Shaft body; 14-2. Air hole; 14-3. Shaft cavity; 15. Air chamber. Detailed Implementation

[0048] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0049] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application 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 application.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] See Figure 1-10 As shown, this embodiment provides a rotary powder coating machine, including a fluidized bed 1 with an opening at the top, and the fluidized bed 1 containing powder; a frame 3 fixed to the upper part of the outer wall of the fluidized bed 1; and an actuation mechanism 2 fixed to the frame 3, which is also located above the fluidized bed 1. The actuation mechanism 2 includes: a vertical motion component 4 fixed to the frame 3; a rotary motion component 5 fixed to the side of the vertical motion component 4 away from the frame 3; and an air blowing component 6 disposed on the side of the rotary motion component 5 away from the vertical motion component 4, and disposed below the rotary motion component 5.

[0053] Understandably, the design of fluidized bed 1 ensures uniform powder distribution, thereby improving coating quality and reducing material waste. The upper opening of fluidized bed 1 facilitates workpiece placement and removal, simplifying operation and improving production efficiency. The frame 3 not only provides stable support for the motion mechanism 2 but also ensures stable equipment operation and reduces the failure rate. The combination of the vertical motion component 4 and the rotary motion component 5 of the motion mechanism 2 allows for coating of workpieces in multiple dimensions, ensuring uniform coating without dead angles. This multi-angle coating method is particularly suitable for workpieces with complex shapes, greatly expanding the applicability and flexibility of coating. In addition, the rotary motion component 5 makes the coating process smoother, reducing problems such as uneven coating thickness and dripping. The air blowing component 6 further optimizes the coating effect; by blowing air, excess powder can be effectively removed from the workpiece, while also facilitating powder recycling and reducing production costs. Overall, the rotary powder coating machine of this invention has significant advantages in improving coating efficiency, ensuring coating quality, reducing material waste, and enhancing operational convenience, and is of great significance for improving the overall level of industrial coating.

[0054] In some embodiments of this application, the vertical motion component 4 includes:

[0055] The reciprocating motion element 7 is mounted on the frame 3;

[0056] The worktable 8 is fixed at the output end of the reciprocating motion element 7.

[0057] In some embodiments of this application, the reciprocating motion element 7 includes:

[0058] Rodless cylinders or electric linear guides.

[0059] It is understood that, in the embodiments of this application, precise and efficient vertical motion control can be achieved by employing the vertical motion component 4. The reciprocating motion element 7, such as a rodless cylinder or an electric linear guide, provides a reliable power source, ensuring smooth motion and accurate repeatability, thus improving equipment performance and ease of operation. Furthermore, the use of a rodless cylinder or electric linear guide enables the equipment to respond quickly to control signals, thereby improving production efficiency and processing accuracy.

[0060] In some embodiments of this application, the rotary motion component 5 includes:

[0061] The sealed enclosure 12 is set on the workbench 8;

[0062] The drive motor 9 is fixed to the upper part of the sealed housing 12;

[0063] The transmission mechanism 10 is disposed inside the sealed housing 12. The transmission mechanism 10 includes a plurality of gears that mesh in sequence. The transmission mechanism 10 is connected to the output end of the drive motor 9.

[0064] The output shaft 11 has one end away from the drive motor 9 and is mounted on the transmission mechanism 10, while the other end of the output shaft 11 extends out of the sealed housing 12.

[0065] Understandably, the sealed housing 12 ensures that the internal mechanical components are protected from external environmental contamination and interference, improving stability and reliability. The transmission mechanism 10, comprising multiple sequentially meshing gears, effectively transmits the rotational motion of the motor, ensuring efficient and precise power transmission. Furthermore, one end of the output shaft 11 is positioned away from the drive motor 9 on the transmission mechanism 10, while the other end extends out of the sealed housing 12, allowing the output shaft 11 to be flexibly connected to other mechanical components. In summary, this design of the rotary motion component 5 not only improves the performance of the equipment but also enhances its applicability and flexibility.

[0066] In some embodiments of this application, the air blowing assembly 6 includes:

[0067] The bearing seat 13 is fixed on the outer wall of the sealing housing 12, and the bearing seat 13 is also located on the upper part of the output shaft 11;

[0068] The cavity drive shaft 14 is disposed inside the bearing seat 13 and is connected to the bearing seat 13 via a bearing.

[0069] In some embodiments of this application, the bearing 13 includes:

[0070] The base 13-1 is fixed to the outer wall of the sealed box 12;

[0071] The seat 13-2 is located on the side of the seat 13-1 away from the sealed box 12;

[0072] The air source interface 13-3 is located on the seat body 13-2.

[0073] In some embodiments of this application, the cavity drive shaft 14 includes:

[0074] The shaft body 14-1 is set inside the seat body 13-2, and the shaft cavity 14-3 is provided inside the shaft body 14-1;

[0075] Vent 14-2 is formed on the side wall of shaft 14-1.

[0076] In some embodiments of this application, the air blowing assembly 6 further includes:

[0077] The air chamber 15 is disposed between the bearing seat 13 and the cavity drive shaft 14.

[0078] Understandably, by fixing the bearing seat 13 to the outer wall of the sealed housing 12 and placing it above the output shaft 11, the stability and accuracy of the transmission shaft can be ensured, while reducing the space occupied inside the housing. Secondly, the cavity transmission shaft 14 is connected to the bearing seat 13 via bearings, which not only improves transmission efficiency but also enhances the durability and reliability between the bearing seat 13 and the transmission shaft. Furthermore, the structural design of the bearing seat 13, including the seat body 13-1 and seat frame 13-2, as well as the air source interface 13-3, makes air source access more convenient while maintaining structural compactness.

[0079] The working principle of this utility model is as follows: The parts are connected to the shaft cavity 14-3 by a clamp. After the parts are heated, the vertical motion component 4 drives the rotary motion component 5 and the air blowing component 6 to move up and down reciprocally, so that the parts enter the fluidized bed 1. The rotary component completes the rotation, realizing the plastic powder dip coating of the parts. After the dip coating is completed, the vertical motion component 4 lifts the parts to leave the fluidized bed 1, and the air blowing component 6 blows air into the parts to blow out the accumulated powder inside the parts.

[0080] It will be understood by those skilled in the art that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary powder coating machine, characterized in that, include: A fluidized bed with an opening at the top, the fluidized bed containing plastic powder; The frame is fixed to the upper part of the outer wall of the fluidized bed; An actuating mechanism, fixed to the frame, is also located above the fluidized bed; wherein the actuating mechanism includes: A vertical motion component is fixed to the frame; A rotary motion component is fixed to the side of the vertical motion component away from the frame; An air blowing component is disposed on the side of the rotary motion component away from the vertical motion component, and the air blowing component is disposed at the lower part of the rotary motion component.

2. The rotary powder coating machine according to claim 1, characterized in that, The vertical motion component includes: A reciprocating motion element is mounted on the frame; The worktable is fixed at the output end of the reciprocating motion element.

3. The rotary powder coating machine according to claim 2, characterized in that, The reciprocating motion element includes: Rodless cylinders or electric linear guides.

4. The rotary powder coating machine according to claim 2, characterized in that, The rotary motion component includes: A sealed enclosure is provided on the workbench; The drive motor is fixed to the upper part of the sealed housing; A transmission mechanism is disposed inside the sealed housing. The transmission mechanism includes a plurality of gears that mesh sequentially. The transmission mechanism is connected to the output end of the drive motor. An output shaft is mounted on the transmission mechanism with one end away from the drive motor, and the other end of the output shaft extends out of the sealed housing.

5. The rotary powder coating machine according to claim 4, characterized in that, The air blowing assembly includes: A bearing seat is fixed on the outer wall of the sealed housing, and the bearing seat is also located on the upper part of the output shaft; A hollow drive shaft is disposed inside the bearing seat, and the hollow drive shaft is connected to the bearing seat via a bearing.

6. The rotary powder coating machine according to claim 5, characterized in that, The bearing includes: The base is fixed to the outer wall of the sealed box; The seat body is located on the side of the seat body away from the sealed housing; The air supply interface is located on the seat.

7. The rotary powder coating machine according to claim 6, characterized in that, The cavity drive shaft includes: A shaft body is disposed within the seat body, and a shaft cavity is provided inside the shaft body; The vent is formed on the side wall of the shaft.

8. The rotary powder coating machine according to claim 5, characterized in that, The air blowing assembly also includes: An air chamber is disposed between the bearing seat and the cavity drive shaft.