A miniaturized spin coating mechanism
By designing a miniaturized rotary coating mechanism and using a built-in motor and lithium battery, synchronous rotation of multiple support platforms is achieved, solving the problems of large footprint and poor flexibility of rotary coating machines, and improving the efficiency and flexibility of the equipment in space-constrained environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 合肥波林新材料股份有限公司
- Filing Date
- 2025-04-21
- Publication Date
- 2026-06-05
Smart Images

Figure CN224321631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product coating technology, specifically a miniaturized rotary coating mechanism. Background Technology
[0002] A spin coating system is a highly efficient and precise automated device designed for coating the outer diameters and inner bores of shafts, bushings, and scroll-type products. It is widely used in the automotive, construction machinery, and home appliance industries. The equipment uses a motor to drive a rotating shaft, causing the parts on the shaft to rotate at a certain speed, and then uses a spray gun to evenly spray coating onto the surface or inner diameter of the parts.
[0003] However, the rotary coating machines commonly found on the market have a large internal space for installing components such as servo motors, pulleys, guide rails, air pipes, and controllers. Furthermore, an environmental protection system needs to be installed externally to exhaust harmful gases. This results in a large footprint for the entire rotary coating machine, which is particularly inconvenient when operating in environments with limited space. This greatly limits its scope of use and flexibility. This limitation necessitates that the design of new rotary coating mechanisms must consider reducing the footprint and improving the work efficiency per unit area to facilitate application in more situations. Therefore, a miniaturized rotary coating mechanism is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a miniaturized rotary coating mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a miniaturized rotary coating mechanism, comprising:
[0006] A housing having a receiving cavity;
[0007] At least one support frame is installed inside the receiving cavity and connected in series via a drive shaft, one end of which is connected to a motor; and
[0008] A support platform is mounted above the support frame via a connecting shaft. The end of the connecting shaft away from the support platform is connected to a transmission shaft via a transmission assembly. The transmission assembly transmits the rotational motion of the transmission shaft to the connecting shaft. The support platform and the connecting shaft form a synchronous rotation structure.
[0009] As a further embodiment of this utility model: the housing includes a support plate and an outer shell mounted on the support plate. The outer shell includes an outer shell body, which has a first opening and a second opening. The support plate is installed at the first opening, and a cover is rotatably connected to the second opening via a hinge assembly.
[0010] As a further embodiment of this invention: the motor is connected to a lithium battery mounted on a support plate via a power cord.
[0011] As a further embodiment of this utility model: a controller connected to the motor is installed on the outer casing.
[0012] As a further embodiment of this utility model: the transmission assembly includes a driving bevel gear sleeved on the transmission shaft and a driven bevel gear sleeved on the connecting shaft, wherein the driving bevel gear meshes with the driven bevel gear.
[0013] As a further embodiment of this utility model: the support frame has two through holes for the drive shaft and the connecting shaft to pass through respectively, and both through holes are connected to the drive shaft and the connecting shaft respectively through rolling bearings.
[0014] As a further embodiment of this utility model, a support base is installed on the support platform.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] By designing a housing, this application effectively prevents key components such as the motor, lithium battery, and transmission assembly from being affected by the coating. The lithium battery inside the housing provides power to the motor, enabling the mechanism to be used conveniently even in environments without external power or with limited space. Furthermore, by configuring the drive shaft, transmission assembly, and connecting shaft, a single motor can drive the rotation of multiple support platforms, achieving the requirement of supporting multiple operations with a smaller number of motors, thus demonstrating an advantage in terms of product quantity. This design not only protects the internal components but also improves the flexibility and efficiency of equipment use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall coating mechanism of this utility model;
[0018] Figure 2 This is a schematic diagram of the interior of the casing of this utility model;
[0019] Figure 3 This is a schematic diagram of the assembly of the support frame and drive shaft of this utility model;
[0020] In the diagram: 1. Support plate; 2. Outer shell; 3. Support base; 4. Controller; 5. Hinge assembly; 6. Motor; 7. Support platform; 8. Lithium battery; 9. Support frame; 10. Driving bevel gear; 11. Driven bevel gear; 12. Connecting shaft; 13. Transmission shaft. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-3 In this embodiment of the invention, a miniaturized spin coating mechanism includes:
[0023] The housing has a receiving cavity;
[0024] At least one support frame 9 is installed inside the receiving cavity and connected in series via a drive shaft 13, one end of which is connected to a motor 6; and
[0025] The support platform 7, which is mounted above the support frame 9 via the connecting shaft 12, is connected to the transmission shaft 13 via a transmission assembly at the end of the connecting shaft 12 away from the support platform 7. The transmission assembly transmits the rotational motion of the transmission shaft 13 to the connecting shaft 12, and the support platform 7 and the connecting shaft 12 form a synchronous rotation structure.
[0026] Specifically, the support platform 7, support frame 9, connecting shaft 12, transmission shaft 13, and transmission assembly are all located inside the housing cavity. This design effectively prevents multiple internal components from being affected by the paint. The output end of the motor 6 is connected to the transmission shaft 13. There are three support frames 9, each sleeved on the transmission shaft 13 and connected to the inner wall of the housing. The support frames 9 are designed in a "7" shape. A connecting shaft 12 perpendicular to the transmission shaft 13 is also installed on the support frame 9. The connecting shaft 12 is connected to the transmission shaft 13 through the transmission assembly. When the motor 6 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the transmission assembly to rotate, and then the rotating transmission assembly drives the connecting shaft 12 to rotate, thereby realizing the transmission of rotational motion. Through the above technical solution, one motor 6 can drive multiple support platforms 7 to rotate, making it convenient for the device to be installed even in places with limited space.
[0027] Please see Figure 1 In one embodiment, preferably, the housing includes a support plate 1 and an outer shell 2 mounted on the support plate 1. The outer shell 2 includes an outer shell body, which has a first opening and a second opening. The support plate 1 is mounted at the first opening, and a shell cover is rotatably connected to the second opening via a hinge assembly 5. The motor 6 is mounted on the support plate 1, and its output end is connected to the drive shaft 13.
[0028] Specifically, the outer shell 2 is made of stainless steel, which has good rust prevention and is easy to clean. The outer shell body and the shell cover are connected by a hinge assembly 5, which allows the shell cover to be opened freely. After opening the shell cover, it is convenient to take out the lithium battery 8 inside the outer shell 2 for charging, and it is also convenient to inspect the transmission mechanism.
[0029] Please see Figure 1-2 In one embodiment, preferably, the motor 6 is connected to the lithium battery 8 mounted on the support plate 1 via a power cord to provide driving power to the motor 6. After the lithium battery 8 is depleted, it can be removed for recharging and reuse.
[0030] Please see Figure 1-2 In one embodiment, preferably, a controller 4 connected to the motor 6 is installed on the housing 2. Furthermore, the controller 4 and the motor 6 are connected for control. The controller 4 adjusts the speed of the motor 6 by changing the magnitude of the current or voltage output to the motor 6.
[0031] Please see Figure 3 In one embodiment, preferably, the transmission assembly includes a driving bevel gear 10 sleeved on the transmission shaft 13 and a driven bevel gear 11 sleeved on the connecting shaft 12, wherein the driving bevel gear 10 and the driven bevel gear 11 mesh with each other.
[0032] Please see Figure 3 In one embodiment, preferably, the support frame 9 has two through holes for the drive shaft 13 and the connecting shaft 12 to pass through respectively. Both through holes are connected to the drive shaft 13 and the connecting shaft 12 respectively through rolling bearings. In this way, while supporting the position of the connecting shaft 12 and the drive shaft 13, the rotation of the connecting shaft 12 and the drive shaft 13 is not affected.
[0033] Please see Figure 1 In one embodiment, preferably, a support 3 is installed on the support platform 7. The support 3 can be designed according to the outer diameter of the product. The support 3 is made of nylon, which is lightweight and can reduce the power loss of the lithium battery 8. The bottom of the support 3 is fixed by the support platform 7. The support 3 is higher than the outer shell 2 to avoid interference during rotation.
[0034] The working principle and usage process of this utility model are as follows: First, connect the lithium battery 8 and the motor 6 in series. Then check whether the active bevel gear 10 and the driven bevel gear 11 are fully engaged. Apply grease to the engagement position to reduce mechanical loss and cover the casing. Then, install the bracket 3 on the support platform 7. By adjusting the controller 4, the operation of the motor 6 can be controlled, which in turn drives the transmission shaft 13 to rotate. Then, the active bevel gear 10 on the transmission shaft 13 drives the driven bevel gear 11 to rotate. Then, the driven bevel gear 11 drives the connecting shaft 12, the support platform 7 and the bracket 3 to rotate in sequence, so that the bracket 3 reaches the desired rotation state. After adjusting to a suitable speed, place the product on the bracket 3. At this time, the spray gun above or on the side of the product starts to work, coating the outer diameter and inner hole of the product.
[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0036] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.
Claims
1. A miniaturized spin coating mechanism, characterized in that, include: A housing having a receiving cavity; At least one support frame is installed inside the receiving cavity and connected in series via a drive shaft, one end of which is connected to a motor; and A support platform is mounted above the support frame via a connecting shaft. The end of the connecting shaft away from the support platform is connected to a transmission shaft via a transmission assembly. The transmission assembly transmits the rotational motion of the transmission shaft to the connecting shaft. The support platform and the connecting shaft form a synchronous rotation structure.
2. The miniaturized rotary coating mechanism according to claim 1, characterized in that, The housing includes a support plate and an outer shell mounted on the support plate. The outer shell includes an outer shell body, which has a first opening and a second opening. The support plate is installed at the first opening, and a shell cover is rotatably connected to the second opening via a hinge assembly.
3. The miniaturized spin coating mechanism according to claim 2, characterized in that, The motor is connected to a lithium battery mounted on a support plate via a power cord.
4. The miniaturized rotary coating mechanism according to claim 2, characterized in that, A controller connected to the motor is mounted on the housing.
5. The miniaturized spin coating mechanism according to claim 1, characterized in that, The transmission assembly includes a driving bevel gear sleeved on a transmission shaft and a driven bevel gear sleeved on a connecting shaft, wherein the driving bevel gear meshes with the driven bevel gear.
6. The miniaturized spin coating mechanism according to claim 1, characterized in that, The support frame has two through holes for the drive shaft and the connecting shaft to pass through, respectively. Both through holes are connected to the drive shaft and the connecting shaft respectively by rolling bearings.
7. The miniaturized spin coating mechanism according to claim 1, characterized in that, A support base is installed on the support platform.