Coating device

Abstract

The utility model provides a coating device, which comprises a coating barrel, an inner cavity of which comprises a fluidization cavity and an air cavity located at the bottom of the fluidization cavity; the first fluidization plate is arranged in the coating barrel so as to separate the fluidization cavity from the air cavity, and the first fluidization plate is provided with a plurality of first ventilation openings so as to communicate the fluidization cavity with the air cavity; the rotating part is located in the fluidization cavity, the rotating part can rotate relative to the coating barrel in the height direction of the coating barrel, and the rotating part comprises a second fluidization plate spaced from the first fluidization plate and a plurality of stirring plates evenly distributed on the top of the second fluidization plate in the circumferential direction; the second fluidization plate is provided with a plurality of second ventilation openings. By arranging a plurality of stirring plates uniformly distributed at the top of the second fluidization plate in the circumferential direction, the rotating part can stir air in the coating barrel when rotating relative to the coating barrel, so that the airflow is more uniform, the distribution of powder is more uniform, and the coating effect of a workpiece is better.

Description

Technical Field

[0001] This application relates to the technical field of surface coating technology, and more particularly to a coating apparatus. Background Technology

[0002] Surface coating technology involves placing a workpiece in a fluidized powder to coat it with the powder. Existing coating tanks typically include an air chamber and a fluidization chamber. Air from the air chamber is introduced into the fluidization chamber to fluidize the powder. However, current coating tanks suffer from the following problem in application: insufficient airflow leads to uneven powder distribution, thus affecting the coating effect.

[0003] Therefore, it is necessary to provide a coating device with more uniform airflow. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a coating device with more uniform airflow.

[0005] According to an embodiment of this utility model, the first embodiment is provided as: a coating apparatus, the coating apparatus comprising:

[0006] The coating tank has an inner cavity including a fluidization chamber and an air chamber located at the bottom of the fluidization chamber;

[0007] A first fluidizing plate is disposed inside the coating tank to separate the fluidizing chamber from the air chamber; the first fluidizing plate has multiple first ventilation openings to connect the fluidizing chamber and the air chamber; and

[0008] A rotating component is located in the fluidization chamber. The rotating component can rotate relative to the coating tank about the height direction of the coating tank. The rotating component includes a second fluidization plate spaced apart from the first fluidization plate, and a plurality of stirring plates evenly distributed on the top of the second fluidization plate in the circumferential direction. The second fluidization plate is provided with a plurality of second vents.

[0009] In a preferred embodiment, the length direction of the agitator is parallel to the height direction of the coating bucket, and when viewed along the length direction of the agitator, the extensions of the width directions of each agitator converge at the rotation center of the rotating component.

[0010] In a preferred embodiment, the agitating plate is perpendicularly connected to the second fluidizing plate, and the rotating component further includes a connecting ring passing through each of the agitating plates.

[0011] In a preferred embodiment, the second fluidizing plate, the connecting ring, and the agitating plate are all spaced apart from the inner wall of the coating tank.

[0012] In a preferred embodiment, each of the first vents extends radially along the first fluidizing plate, and each of the second vents extends radially along the second fluidizing plate.

[0013] In a preferred embodiment, the side wall of the coating tank is further provided with a third vent, which is connected to the air cavity.

[0014] In a preferred embodiment, the coating apparatus further includes a rotating shaft that drives the rotating member to rotate, and a drive source that drives the rotating shaft to rotate.

[0015] In a preferred embodiment, the first fluidizing plate has a clearance hole in the middle, the second fluidizing plate has a connecting hole in the middle, and the rotating shaft passes through the clearance hole from the bottom and extends into the connecting hole to drive the second fluidizing plate to rotate.

[0016] In a preferred embodiment, the coating apparatus further includes a base that supports the coating barrel and the drive source. The bottom of the base is provided with a transmission space. The output shaft of the drive source extends into the transmission space. The rotating shaft passes through the bottom of the coating barrel and extends into the transmission space, and is connected to the output shaft in a transmission connection.

[0017] In a preferred embodiment, the coating apparatus further includes a mounting sleeve disposed at the bottom of the inner cavity of the coating barrel, and a bearing disposed within the mounting sleeve for mounting the rotating shaft.

[0018] This utility model has the following beneficial effects:

[0019] By setting multiple agitator plates evenly distributed around the top of the second fluidizing plate, the rotating component can agitate the air inside the coating tank when rotating relative to the coating tank, thereby making the airflow more uniform, resulting in a more uniform powder distribution and a better coating effect on the workpiece. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the coating device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the coating device according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the rotating component according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the first fluidizing plate according to an embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional structural diagram of the coating device according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram showing the view along the length of the stirring plate according to an embodiment of the present invention.

[0026] Reference numerals: 10. Coating tank; 11. Fluidization chamber; 12. Air chamber; 13. Third vent; 20. First fluidizing plate; 21. First vent; 22. Clearance hole; 30. Rotating component; 31. Second fluidizing plate; 311. Second vent; 312. Connecting hole; 32. Stirring plate; 33. Connecting ring; 40. Rotating shaft; 50. Drive source; 51. Output shaft; 60. Base; 61. Transmission space; 70. Mounting sleeve; 80. Bearing; Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component 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.

[0030] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0031] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0032] Please refer to Figures 1-6 This utility model provides a coating device, which includes a coating tank 10, a first fluidizing plate 20, and a rotating component 30. The inner cavity of the coating tank 10 includes a fluidizing chamber 11 and an air chamber 12. The air chamber 12 is located at the bottom of the fluidizing chamber 11. The first fluidizing plate 20 is disposed inside the coating tank 10 to separate the fluidizing chamber 11 and the air chamber 12. The first fluidizing plate 20 is provided with a plurality of first ventilation openings 21 to connect the fluidizing chamber 11 and the air chamber 12. Air in the air chamber 12 can flow into the fluidizing chamber 11 from the air chamber 12.

[0033] The rotating component 30 is located in the fluidization chamber 11, and the rotating component 30 can rotate relative to the coating tank 10 in the height direction of the coating tank 10. The rotating component 30 includes a second fluidization plate 31 and a stirring plate 32. The second fluidization plate 31 is spaced apart from the first fluidization plate 20. Multiple stirring plates 32 are evenly distributed on the top of the second fluidization plate 31 in the circumferential direction. The second fluidization plate 31 is provided with multiple second ventilation openings 311.

[0034] In this embodiment, by setting multiple agitator plates 32 evenly distributed around the top of the second fluidizing plate 31, the rotating member 30 can agitate the air inside the coating tank 10 when rotating relative to the coating tank 10, so that the airflow is more uniform, thereby making the powder distribution more uniform and the coating effect of the workpiece better.

[0035] Preferably, the number of second vents 311 is even, and each second vent 311 is configured with a second vent 311 symmetrical to it along the rotation center, so as to make the airflow more uniform.

[0036] In a preferred embodiment, the length direction of the agitator 32 is parallel to the height direction of the coating tank 10, as can be referenced. Figure 6 When viewed along the length of the stirring plate 32, the extensions of each stirring plate 32 in the width direction converge at the rotation center of the rotating component 30 (i.e., the central axis of the rotating shaft 40).

[0037] In a preferred embodiment, the stirring plate 32 is vertically connected to the second fluidizing plate 31. Since the stirring plate 32 is relatively long, in order to improve its stability, the rotating component 30 also includes a connecting ring 33 that passes through each stirring plate 32. The connecting ring 33 is fixed to each stirring plate 32, so that the rotating component 30 is relatively stable as a whole.

[0038] In a preferred embodiment, reference may be made to Figure 5 and Figure 6 The second fluidizing plate 31, the connecting ring 33 and the stirring plate 32 are all spaced apart from the inner wall of the coating tank 10 so that the rotating part 30 can rotate freely.

[0039] In one specific embodiment, each first vent 21 extends radially along the first fluidizing plate 20, and each second vent 311 extends radially along the second fluidizing plate 31. Preferably, the plurality of first vents 21 are evenly distributed circumferentially on the first fluidizing plate 20 to make the airflow more uniform.

[0040] In one specific embodiment, the side wall of the coating tank 10 is also provided with a third vent 13, which is connected to the air cavity 12 so that air can enter the air cavity 12 along the third vent 13.

[0041] In one specific embodiment, the coating apparatus further includes a rotating shaft 40 and a drive source 50. The drive source 50 can drive the rotating shaft 40 to rotate, and the rotating shaft 40 can drive the rotating component 30 to rotate. The drive source 50 can be directly connected to the rotating shaft 40 to directly drive the rotating shaft 40 to rotate, or it can indirectly drive the rotating shaft 40 to rotate. For example, there can be other components or mechanisms for transmission between the drive source 50 and the rotating shaft 40.

[0042] Preferably, refer to Figure 3 and Figure 4 The first fluidizing plate 20 has a clearance hole 22 in the middle, and the second fluidizing plate 31 has a connecting hole 312 in the middle, which can be combined. Figure 2 , Figure 5 and Figure 6 The rotating shaft 40 passes through the clearance hole 22 from the bottom and extends into the connecting hole 312 to drive the second fluidizing plate 31 to rotate.

[0043] In a preferred embodiment, the coating apparatus further includes a base 60 for supporting the coating tank 10 and the drive source 50. The bottom of the base 60 has a transmission space 61 for accommodating the rotating shaft 40, the output shaft 51 of the drive source 50, and a transmission component for driving both. Specifically, the output shaft 51 of the drive source 50 extends into the transmission space 61, and the rotating shaft 40 passes through the bottom of the coating tank 10 and extends into the transmission space 61. The rotating shaft 40 and the output shaft 51 are connected by a transmission component. The specific structure and transmission form of the transmission component can be varied, such as belt drive and gear drive, and are not limited here.

[0044] Furthermore, the coating device also includes a mounting sleeve 70 located at the bottom of the inner cavity of the coating tank 10, and a bearing 80 located inside the mounting sleeve 70, with the top end of the rotating shaft 40 mounted inside the bearing 80.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coating apparatus characterized by, The coating device comprises: a coating barrel, an inner cavity of which comprises a fluidizing cavity and an air cavity at a bottom of the fluidizing cavity; a first fluidizing plate arranged inside the coating barrel to separate the fluidizing cavity and the air cavity, the first fluidizing plate being provided with a plurality of first air vents to communicate the fluidizing cavity and the air cavity; and a rotating member arranged in the fluidizing cavity, the rotating member being rotatable relative to the coating barrel along a height direction of the coating barrel, the rotating member comprising a second fluidizing plate spaced apart from the first fluidizing plate and a plurality of stirring plates uniformly distributed on a top of the second fluidizing plate in a circumferential direction, the second fluidizing plate being provided with a plurality of second air vents. The length direction of the stirring plate is parallel to the height direction of the coating barrel, and, as viewed along the length direction of the stirring plate, the extension lines of the stirring plates in a width direction intersect at a rotation center of the rotating member.

2. The coating apparatus of claim 1, wherein, The stirring plate is perpendicularly connected to the second fluidizing plate, and the rotating member further comprises a connecting ring penetrating through the stirring plates.

3. The coating apparatus of claim 2, wherein, The second fluidizing plate, the connecting ring and the stirring plates are all spaced apart from an inner wall of the coating barrel.

4. The coating apparatus of claim 3, wherein Each of the first air vents extends along a radial direction of the first fluidizing plate, and each of the second air vents extends along a radial direction of the second fluidizing plate.

5. The coating apparatus of claim 1, wherein, The sidewall of the coating barrel is further provided with third air vents, the third air vents being in communication with the air cavity.

6. The coating apparatus of claim 1, wherein, The coating device further comprises a rotating shaft to drive the rotating member to rotate and a driving source to drive the rotating shaft to rotate.

7. The coating apparatus of any one of claims 1-6, wherein, A middle portion of the first fluidizing plate is provided with an avoiding hole, a middle portion of the second fluidizing plate is provided with a connecting hole, and the rotating shaft penetrates through the avoiding hole from a bottom and extends into the connecting hole to drive the second fluidizing plate to rotate.

8. The coating apparatus of claim 7, wherein, The coating device further comprises a base to support the coating barrel and the driving source, a bottom of the base is provided with a transmission space, an output shaft of the driving source extends into the transmission space, the rotating shaft penetrates through a bottom of the coating barrel and extends into the transmission space and is in transmission connection with the output shaft.

9. The coating apparatus of claim 8, wherein, The coating device further comprises a mounting sleeve arranged at a bottom of the inner cavity of the coating barrel and a bearing arranged in the mounting sleeve to mount the rotating shaft.

10. The coating apparatus of claim 7, wherein, ​

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