Carrier for coating layer film on surface of microsphere

Abstract

The utility model discloses a carrier for a microsphere surface coating layer film, which comprises a seat body and at least one blowing mechanism, the seat body is provided with a coating space, two opposite side walls of the coating space are provided with corresponding first blowing areas, and the inner bottom wall of the coating space is provided with a second blowing area; the air blowing mechanism is communicated with the two first air blowing areas and the second air blowing area, and the air blowing mechanism can blow air towards the coating space through the two first air blowing areas and the second air blowing area. The problem that in the prior art, when the surfaces of the microspheres are coated, collision between the microspheres and between the microspheres and a carrier easily causes damage to a surface coating is solved.

Description

Technical Field

[0001] This utility model relates to the field of microsphere coating technology, specifically to a carrier for coating a microsphere surface. Background Technology

[0002] With the development of modern manufacturing technology, microspheres, as an important functional material, are increasingly widely used in microelectronics, catalysis, drug delivery, and optical devices. Microspheres typically have small size and large specific surface area; therefore, the control of surface properties is crucial to their functionality. To improve the functionality and adaptability of microspheres, forming a uniform, stable, and high-quality film on their surface has become one of the key technologies for enhancing their performance. Especially in certain industrial applications, such as biomedicine, optoelectronics, and gas catalysis, higher requirements are placed on the uniformity, adhesion, and environmental resistance of the microsphere surface coating.

[0003] Currently, existing coating methods mainly involve using contact carrier vibration to make microspheres move during the coating process. Although carrier vibration can improve the coating uniformity to a certain extent, the relatively violent movement of the microspheres can easily damage the coating surface, affecting the quality and performance of the coating. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a carrier for coating microspheres, thereby solving the problem that collisions between microspheres or between microspheres and the carrier can easily damage the surface coating during microsphere surface coating in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a carrier for coating a microsphere surface, comprising:

[0007] A base, wherein a coating space is provided on the base, and corresponding first air blowing areas are provided on opposite side walls of the coating space, and a second air blowing area is provided on the inner bottom wall of the coating space; and,

[0008] At least one blowing mechanism is provided, which is connected to two first blowing areas and a second blowing area, and the blowing mechanism is capable of blowing air toward the coating space via the two first blowing areas and the second blowing area.

[0009] In some embodiments, the seat includes a base plate and two vertical plates, the two vertical plates are mounted on opposite sides of the base plate, and a coating space is formed between the two vertical plates and the base plate, wherein the two vertical plates are provided with the first air blowing area, and the base plate is provided with the second air blowing area.

[0010] In some embodiments, the first air blowing area includes a plurality of first air vents, all of which are circular holes with an inner diameter of 5 mm; the second air blowing area includes a plurality of second air vents, all of which are strip-shaped holes with a width of 5 mm and a length of 20 mm.

[0011] In some embodiments, the included angle between the two vertical plates and the base plate is 150°.

[0012] In some embodiments, the width of the base plate is 100mm, and the vertical height of the two vertical plates is 300mm.

[0013] In some embodiments, the base plate and the two vertical plates are both polytetrafluoroethylene (PTFE) plates.

[0014] In some embodiments, the two vertical plates are coated with a heat-resistant coating, and the bottom plate is coated with an alumina coating.

[0015] In some embodiments, two of the blowing mechanisms are respectively connected to two of the first blowing regions, and a third blowing mechanism is connected to the second blowing region; the blowing mechanism includes a gas guide pipe, a gas flow controller and a gas pump, the gas flow controller and the gas pump are disposed on the gas guide pipe, and one end of the gas guide pipe is connected to a plurality of first vent holes or a plurality of first vent holes via a plurality of gas transmission pipes.

[0016] In some embodiments, the blowing mechanism further includes an airflow sensor disposed on the air duct.

[0017] In some embodiments, a heating unit and a temperature measuring unit are further included. The heating unit is mounted on the base plate and used to heat the base plate. The temperature measuring unit is located on one side of the seat and connected to the base plate.

[0018] Compared with the prior art, the present invention provides a carrier for coating a microsphere surface, which has a coating space on the base, and corresponding first air blowing areas on opposite side walls of the coating space, and a second air blowing area on the inner bottom wall of the coating space; the air blowing mechanism is connected to the two first air blowing areas and also to the second air blowing area; when the microsphere is in the coating space, the two first air blowing areas blow air into the coating space, so that convection is formed in the coating space, while the second air blowing area blows air into the coating space, ensuring that the gas flow rate can counteract the gravity of the microsphere, so that the microsphere can be stably suspended in the coating space, effectively avoiding collisions between microspheres or between microspheres and the carrier. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of a carrier for coating a microsphere surface provided by this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of a carrier for coating a microsphere surface provided by this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] To address the technical problem that collisions between microspheres or between microspheres and the carrier can easily damage the surface coating during microsphere surface coating in existing technologies, this invention provides a carrier for coating microspheres, which can ensure that the microspheres are stably suspended within the carrier and avoid collisions between microspheres or between microspheres and the carrier.

[0023] Please see Figures 1-2 , Figures 1-2 According to one embodiment of the present invention, a carrier for coating a microsphere surface includes a base 1 and at least one blowing mechanism 2. The base 1 has a coating space 1a, and the opposite side walls of the coating space 1a have corresponding first blowing areas. The inner bottom wall of the coating space 1a has a second blowing area. The blowing mechanism 2 is connected to the two first blowing areas and the second blowing area, and the blowing mechanism 2 can blow air toward the coating space 1a through the two first blowing areas and the second blowing area.

[0024] In actual use, the blowing mechanism 2 is turned on, so that convection and vertical upward airflow are formed in the coating space 1a. The microspheres to be coated are placed in the coating space 1a, and the flow rate of the vertical upward airflow is adjusted to ensure that the flow rate of the airflow can counteract the gravity of the microspheres, so that the microspheres can be stably suspended in the coating space 1a for coating.

[0025] It should be noted that, in one embodiment, the composition of the microspheres to be coated is not explicitly limited and can be made of materials such as plastic, glass, or metal.

[0026] In one embodiment, the seat 1 includes a base plate 11 and two vertical plates 12. The two vertical plates 12 are installed on opposite sides of the base plate 11, and the two vertical plates 12 and the base plate 11 enclose a coating space 1a. The two vertical plates 12 are provided with the first air blowing area, and the base plate 11 is provided with the second air blowing area.

[0027] The first air blowing area includes multiple first air vents 1b, each of which is a circular hole with an inner diameter of 5 mm; the second air blowing area includes multiple second air vents 1c, each of which is a strip-shaped hole with a width of 5 mm and a length of 20 mm.

[0028] Furthermore, the two air blowing mechanisms 2 are respectively connected to the two first air blowing areas, and the third air blowing mechanism 2 is connected to the second air blowing area. Specifically, the air blowing mechanism 2 includes an air guide pipe 21, a gas flow controller 22, and an air pump 23. The gas flow controller 22 and the air pump 23 are disposed on the air guide pipe 21. One end of the air guide pipe 21 of the first air blowing mechanism 2 is connected to a plurality of first ventilation holes 1b on a vertical plate 12 via a plurality of air transmission pipes. One end of the air guide pipe 21 of the second air blowing mechanism 2 is connected to a plurality of first ventilation holes 1b on another vertical plate 12 via a plurality of air transmission pipes. One end of the air guide pipe 21 of the third air blowing mechanism 2 is connected to a plurality of second ventilation holes 1c via a plurality of air transmission pipes.

[0029] Understandably, after the air pump 23 is turned on, the airflow can be delivered to the coating space 1a through multiple first vent holes 1b and second vent holes 1c. The gas flow controller 22 can adjust the airflow speed in the coating space 1a during delivery.

[0030] In addition, the blowing mechanism 2 also includes an airflow sensor on the air guide tube 21. The airflow sensor can perform real-time monitoring and has an accuracy of ±1 sccm. It can provide real-time feedback of airflow data to ensure the uniformity of airflow. The gas flow controller has an adjustment range of 1 sccm to 100 sccm. During actual coating, the airflow can be adjusted according to the size and weight of the microspheres.

[0031] Specifically, the airflow intensity is adjusted in real time by a gas flow controller and an airflow sensor based on the actual weight of microspheres of different sizes. Specifically, for microspheres with larger diameters, the airflow intensity is appropriately increased to effectively counteract their weight; while for smaller microspheres, a lower airflow intensity is used to ensure that the microspheres are always within a uniform range of metal ion deposition throughout the entire coating process, avoiding collisions between microspheres or between microspheres and the carrier, as well as secondary damage to the film.

[0032] It should be noted that, in one embodiment, the included angle between the two vertical plates 12 and the bottom plate 11 is 150°; that is, the width of the coating space 1a towards the bottom is gradually reduced. Specifically, the width of the bottom plate 11 is 100mm, and the vertical height of the two vertical plates 12 is 300mm.

[0033] In one embodiment, the base plate 11 and the two vertical plates 12 are both polytetrafluoroethylene (PTFE) plates. The two vertical plates 12 are coated with a heat-resistant coating, and the base plate 11 is coated with an alumina coating.

[0034] Based on the above scheme, a heating unit 3 and a temperature measuring unit 4 are also included. The heating unit 3 is installed on the base plate and used to heat the base plate. The temperature measuring unit 4 is located on one side of the base and connected to the base plate. Specifically, precise temperature control not only promotes good bonding between the metal film and the microsphere surface, but also effectively prevents uneven film layer caused by temperature fluctuations, thereby improving the density and durability of the coating.

[0035] Understandably, heating unit 3 is a resistance wire with a power range of 50W to 200W, adjustable according to the microsphere material and coating requirements. The resistance wire is made of tungsten wire, capable of withstanding high temperatures and possessing high thermal conductivity. Temperature measuring unit 4 includes a thermocouple temperature sensor and a heat-resistant wire. The thermocouple temperature sensor is connected to the substrate via the heat-resistant wire, allowing real-time monitoring of the substrate temperature. The thermocouple temperature sensor has an accuracy of ±1℃, accurately reflecting temperature changes and preventing temperature fluctuations from affecting film adhesion. Specifically, heating unit 3 heats the substrate to a predetermined value.

[0036] It should be noted that the sputtering target material is selected according to the coating requirements, including but not limited to pure metals such as chromium, titanium, and copper. The target material size should be determined by the actual magnetron sputtering device used. The nozzle of the magnetron sputtering device is placed directly above the carrier, at least 50 cm away from the base. The magnetron sputtering device is turned on, causing the metal ions to migrate towards the carrier and come into contact with the surface of the microspheres during the migration process, thereby coating the surface of the microspheres.

[0037] The sputtering process of a magnetron sputtering device should be precisely controlled by adjusting the voltage, power and airflow environment of the magnetron sputtering device to control the deposition rate and quality of the metal film. The sputtering time should be adjusted according to the required film thickness to ensure uniform coating and stable film quality.

[0038] In addition, after the coating is completed, the magnetron sputtering device and heating unit are turned off. After the substrate cools to room temperature, the coated microspheres are removed, and the three blowing mechanisms 2 are turned off.

[0039] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A carrier for coating a microsphere surface, characterized in that, include: A base, wherein a coating space is provided on the base, and corresponding first air blowing areas are provided on opposite side walls of the coating space, and a second air blowing area is provided on the inner bottom wall of the coating space; and, At least one blowing mechanism is provided, which is connected to the two first blowing regions and the second blowing region, and the blowing mechanism is capable of blowing air toward the coating space via the two first blowing regions and the second blowing region.

2. The carrier for coating microspheres according to claim 1, characterized in that, The seat includes a base plate and two vertical plates. The two vertical plates are installed on opposite sides of the base plate, and the two vertical plates and the base plate enclose a coating space. The two vertical plates are provided with the first air blowing area, and the base plate is provided with the second air blowing area.

3. The carrier for coating microspheres according to claim 2, characterized in that, The first air blowing area includes a plurality of first air vents, all of which are circular holes with an inner diameter of 5 mm. The second air blowing area includes multiple second air vents, each of which is a strip-shaped hole with a width of 5 mm and a length of 20 mm.

4. The carrier for coating microspheres according to claim 2, characterized in that, The included angle between the two vertical plates and the base plate is 150°.

5. The carrier for coating microspheres according to claim 4, characterized in that, The width of the base plate is 100mm, and the vertical height of the two vertical plates is 300mm.

6. The carrier for coating microspheres according to claim 2, characterized in that, The base plate and the two vertical plates are all made of polytetrafluoroethylene (PTFE).

7. The carrier for coating microspheres according to claim 6, characterized in that, Both vertical plates are coated with a heat-resistant coating, and the bottom plate is coated with an aluminum oxide coating.

8. The carrier for coating microspheres according to claim 3, characterized in that, The two air blowing mechanisms are respectively connected to the two first air blowing areas, and the third air blowing mechanism is connected to the second air blowing area; The air blowing mechanism includes an air guide pipe, a gas flow controller, and an air pump. The gas flow controller and the air pump are mounted on the air guide pipe, and one end of the air guide pipe is connected to a plurality of first air holes or a plurality of first air holes via a plurality of air transmission pipes.

9. The carrier for coating microspheres according to claim 8, characterized in that, The blowing mechanism also includes an airflow sensor mounted on the air duct.

10. The carrier for coating microspheres according to claim 2, characterized in that, It also includes a heating unit and a temperature measuring unit. The heating unit is installed on the base plate and is used to heat the base plate. The temperature measuring unit is located on one side of the seat and is connected to the base plate.

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