OLED material vacuum sublimation purification equipment

Abstract

The utility model discloses vacuum sublimation purification equipment for OLED (Organic Light Emitting Diode) materials, which relates to the field of OLED materials and comprises a vacuum chamber, a sealing door and an inner pipe. By arranging the first moving rod, the second moving rod, the sealing door, the limiting block, the fixing block and the fixing groove, a worker can drive the inner pipe to move through the first moving rod and the second moving rod while opening the sealing door, the inner pipe can be directly taken out without using a furnace hook, the working efficiency is improved, and the labor intensity of the worker is reduced. By arranging the connecting port, the connecting groove and the connecting block, a traditional mode that the inner pipe is connected through a high-temperature-resistant adhesive tape is replaced, a worker only needs to align the connecting block on the inner pipe with the corresponding connecting groove and slightly screw the inner pipe, the connecting block can be stably embedded into and tightly matched with the connecting port along the connecting groove, and a stable and reliable connecting structure is formed; operation steps are saved, stability and sealing performance of connection are improved, and a foundation is built for efficient production operation.

Description

Technical Field

[0001] The utility model relates to the field of OLED materials, in particular to a vacuum sublimation purification device for OLED materials. Background Art

[0002] OLED material, or organic light-emitting diode material, is a new type of luminescent material. It has the characteristics of self-luminescence, does not require a backlight, has a higher contrast ratio, can present deep blacks and bright colors, has a fast response speed, can be used to make high refresh rate screens, and has an extremely wide viewing angle. At the same time, OLED material also has the advantages of being light, thin, and flexible, and can adapt to various application scenarios. It is widely used in the screen manufacturing of many electronic devices such as televisions, mobile phones, and monitors.

[0003] OLED material vacuum sublimation purification equipment is a key equipment for purifying OLED materials. Its main working principle is to sublime the OLED material by heating in a vacuum environment, and then re-condense it in a specific cooling area to remove impurities and achieve the purpose of purification. After the OLED material to be purified is placed in the inner tube, the inner tube is placed in the vacuum chamber, and the door of the vacuum chamber is closed and sealed to ensure that the chamber is in a completely closed state. Then, the vacuum pump is turned on and the heating source is started according to the set parameters to heat the OLED material placed in the inner tube to complete the sublimation.

[0004] The above-mentioned OLED material vacuum sublimation purification equipment has an inner tube made of multiple quartz tubes. When taking and placing the inner tube, a furnace hook needs to be used, which makes the taking and placing work inconvenient and the work efficiency is low. Therefore, it needs to be modified based on the existing technology. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a vacuum sublimation purification device for OLED materials to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum sublimation and purification device for OLED materials, comprising a vacuum chamber, a sealing door and an inner tube, a limit block being installed on the inner wall of the vacuum chamber, and a first moving rod being slidably installed on the inner wall of the vacuum chamber, a second moving rod being rotatably installed on the end of the first moving rod, a fixing groove being provided on the end of the first moving rod, and a fixing block being installed on the end of the first moving rod, a connecting port being installed on the end of the inner tube, a connecting groove being provided on the inner wall of the connecting port, and a connecting block being installed on the outer wall of the inner tube.

[0007] By adopting the above technical solution, the staff can drive the inner tube to move through the first moving rod and the second moving rod while opening the sealed door. There is no need to use a furnace hook, and the inner tube can be taken out directly, which improves work efficiency. It replaces the traditional method of using high-temperature resistant tape to connect the inner tube. The staff only needs to align the connecting block on the inner tube with the corresponding connecting groove and gently twist the inner tube. The connecting block will be firmly embedded along the connecting groove and fit tightly into the connecting port to form a stable and reliable connection structure, saving operating steps and improving the stability and sealing of the connection.

[0008] Furthermore, a second moving rod is rotatably mounted on the inner wall of the sealing door, and a limiting block for sliding of the first moving rod is mounted on the inner wall of the vacuum chamber.

[0009] By adopting the above technical solution, workers can easily remove the inner tube without using additional tools such as furnace hooks, thereby improving the convenience and work efficiency of operation. The limit block provides a precise sliding track for the first moving rod to ensure that the first moving rod will not deviate or shake during movement.

[0010] Furthermore, a plurality of groups of inner tubes are installed on the inner wall of the vacuum chamber, and an installation groove corresponding to the fixing block is opened at the end of the inner tube close to the first moving rod.

[0011] By adopting the above technical solution, multiple groups of inner tubes fully utilize the space inside the vacuum chamber, and the shape and size of the mounting grooves are precisely matched with the fixing blocks, which is conducive to establishing a stable connection between the inner tubes and the first moving rod.

[0012] Furthermore, a fixing groove corresponding to the connecting port is formed at the end of the first moving rod, and the diameter of the fixing block is larger than that of the limiting block.

[0013] By adopting the above technical solution, a precise positioning and matching method is provided for the connection between the inner tube and the first movable rod, thereby achieving a stable connection between the two. The diameter of the fixed block is larger than the limit block, which limits the movement range of the first movable rod and ensures that the first movable rod will not move out of the inner wall of the vacuum chamber.

[0014] Furthermore, a plurality of connection grooves are provided on the inner wall of the connection port at equal intervals, and the connection grooves are designed to be inclined.

[0015] By adopting the above technical solution, it is helpful to provide guidance for the connecting blocks, improve operational efficiency, facilitate rapid separation, cleaning and reassembly by workers, effectively shorten the equipment downtime for maintenance, and conform to the rhythm of efficient production.

[0016] Furthermore, a plurality of connection blocks are installed at equal intervals on the outer wall of the inner tube away from the connection port, and the connection blocks correspond to the connection grooves, and a sealing rubber pad is installed on the inner wall of the connection port.

[0017] The adoption of the above technical solution is conducive to achieving precise positioning and stable connection of the inner tube. When the connecting block of the inner tube is inserted into the connecting groove to complete the connection, the sealing rubber gasket will be squeezed between the connecting port and the inner tube to form a sealed interface, effectively preventing gas leakage.

[0018] Furthermore, a moving groove for sliding the second moving rod is formed on the inner wall of the first moving rod, and after the sealing door rotates, the second moving rod moves out of the inner wall of the vacuum chamber.

[0019] By adopting the above technical solution, after the sealing door is rotated, the staff can still pull the first moving rod to move the second moving rod along the moving groove on the outer wall of the first moving rod, further pulling the inner tube outward.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The utility model is provided with a first movable rod, a second movable rod, a sealing door, a limit block, a fixed block and a fixed groove, so that the staff can drive the inner tube to move by the first movable rod and the second movable rod when opening the sealing door. There is no need to use a furnace hook, and the inner tube can be directly taken out, thereby improving work efficiency. By providing a connecting port, a connecting groove and a connecting block, the traditional method of connecting the inner tube with a high-temperature resistant tape is replaced. The staff only needs to align the connecting block on the inner tube with the corresponding connecting groove and gently twist the inner tube. The connecting block will be firmly embedded along the connecting groove and fit tightly into the connecting port to form a stable and reliable connection structure, saving operating steps, improving the stability and sealing of the connection, and laying a solid foundation for efficient production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model after the sealed door is opened;

[0024] Figure 3 This is a sectional view of the three-dimensional structure of the utility model;

[0025] Figure 4 This is a cross-sectional view of the structure of the utility model after the sealing door is opened;

[0026] Figure 5 For this utility model Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic structural diagram of the inner tube of the utility model;

[0028] Figure 7 This is a schematic structural diagram of the first moving rod and the second moving rod of the utility model;

[0029] Figure 8 It is a cross-sectional view of the first moving rod of the present invention.

[0030] In the figure: 1. Vacuum chamber; 11. Sealing door; 12. Limit block; 2. First moving rod; 21. Second moving rod; 22. Fixed block; 23. Fixed groove; 24. Moving groove; 3. Inner tube; 31. Connecting port; 32. Connecting groove; 33. Connecting block; 34. Mounting groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] The following describes an embodiment of the present invention based on its overall structure.

[0033] A vacuum sublimation purification device for OLED materials, such as Figure 1 - Figure 8 As shown, it includes a vacuum chamber 1, a sealing door 11 and an inner tube 3, a limit block 12 is installed on the inner wall of the vacuum chamber 1, and a first moving rod 2 is slidably installed on the inner wall of the vacuum chamber 1, the first moving rod 2 slides on the inner wall of the limit block 12, and the end of the first moving rod 2 is rotatably installed with a second moving rod 21, and the end of the first moving rod 2 is provided with a fixing groove 23, and the end of the first moving rod 2 is provided with a fixing block 22, a connecting port 31 is installed at the end of the inner tube 3, and the inner wall of the connecting port 31 is provided with multiple groups of connecting grooves 32 at equal intervals, and the connecting grooves 32 are inclined, which is conducive to providing guidance for the connecting block 33 and improving the operating efficiency, the end of the first moving rod 2 is provided with a fixing groove 23 corresponding to the connecting port 31, and the fixing groove 23 is provided at the end of the first moving rod 2. The diameter of the fixed block 22 is larger than the limit block 12, and a connecting block 33 is installed on the outer wall of the inner tube 3. The rotation process of the sealing door 11 drives the second moving rod 21 installed on the inner wall to move synchronously. The second moving rod 21 pulls the first moving rod 2 to slide outward along the linear track defined by the limit block 12, and the first moving rod 2 then pulls the inner tube 3 out. When the sealing door 11 is fully opened, the staff can manually pull the first moving rod 2 as needed, and with the help of the moving groove 24 on the inner wall of the first moving rod 2, allow the second moving rod 21 to continue to slide in the groove, further pulling out the inner tube 3 until the inner tube 3 can be conveniently and safely removed from the equipment, and then the removed inner tube 3 and the purified materials therein are properly handled and stored.

[0034] See also Figure 1 - Figure 8A second moving rod 21 is rotatably installed on the inner wall of the sealing door 11, and a limit block 12 for the sliding of the first moving rod 2 is installed on the inner wall of the vacuum chamber 1, so that the staff can easily take out the inner tube 3 without using additional tools such as furnace hooks, thereby improving the convenience and work efficiency of operation. The limit block 12 provides a precise sliding track for the first moving rod 2 to ensure that the first moving rod 2 will not deviate or shake during movement.

[0035] See also Figure 1 - Figure 6 Multiple groups of inner tubes 3 are installed on the inner wall of the vacuum chamber 1, and an installation groove 34 corresponding to the fixed block 22 is opened at the end of the inner tube 3 close to the first moving rod 2. The multiple groups of inner tubes 3 make full use of the space inside the vacuum chamber 1, and the shape and size of the installation groove 34 are precisely matched with the fixed block 22, which is conducive to the inner tube 3 establishing a stable connection with the first moving rod 2.

[0036] See also Figure 1 - Figure 8 A fixing groove 23 corresponding to the connection port 31 is provided at the end of the first moving rod 2, and the diameter of the fixing block 22 is larger than the limit block 12, which provides a precise positioning and matching method for the connection between the inner tube 3 and the first moving rod 2, thereby achieving a stable connection between the two. The diameter of the fixing block 22 is larger than the limit block 12, which limits the movement range of the first moving rod 2 and ensures that the first moving rod 2 will not move out of the inner wall of the vacuum chamber 1.

[0037] See also Figure 1 - Figure 6 The inner wall of the connection port 31 is provided with multiple groups of connection grooves 32 at equal intervals, and the connection grooves 32 are inclined, which is conducive to providing guidance for the connection block 33, improving the operating efficiency, and facilitating the staff to quickly separate, clean and reassemble, effectively shortening the equipment downtime for maintenance, and conforming to the efficient production rhythm.

[0038] See also Figure 1 - Figure 6 A plurality of connecting blocks 33 are installed at equal intervals on the outer wall of the inner tube 3 away from the connecting port 31, and the connecting blocks 33 correspond to the connecting grooves 32, and a sealing rubber pad is installed on the inner wall of the connecting port 31, which is conducive to the precise positioning and stable connection of the inner tube 3. When the connecting block 33 of the inner tube 3 is inserted into the connecting groove 32 to complete the connection, the sealing rubber pad will be squeezed between the connecting port 31 and the inner tube 3 to form a sealed interface, effectively preventing gas leakage.

[0039] See also Figure 1 - Figure 8A moving groove 24 is provided on the inner wall of the first moving rod 2 for the second moving rod 21 to slide, and after the sealing door 11 rotates, the second moving rod 21 moves out of the inner wall of the vacuum chamber 1, which is beneficial for the staff to still pull the first moving rod 2 after the sealing door 11 rotates, so that the second moving rod 21 moves along the moving groove 24 on the outer wall of the first moving rod 2, and further pull the inner tube 3 outward.

[0040] The working principle of the present invention is as follows: when using the OLED material vacuum sublimation purification equipment to purify the OLED material, the staff first aligns the connecting block 33 installed on the outer wall of the inner tube 3 with the connecting groove 32 opened in the inner wall of the connecting port 31 at the end of the other inner tube 3, and gently twists the inner tube 3. The inclined design of the connecting groove 32 will guide the advancement of the connecting block 33, and the connecting block 33 will be firmly embedded along the connecting groove 32 and fit tightly into the connecting port 31, forming a stable and reliable connection structure, saving assembly time and more effectively avoiding the hidden dangers of air leakage, material leakage and the like caused by loose connection, laying a solid foundation for subsequent purification work, and then placing the assembled multiple groups of inner tubes 3 in the vacuum chamber 1. As the inner tube 3 gradually enters, the installation groove 34 opened at the end of the inner tube 3 will gradually approach the fixed block 22 installed at the end of the first moving rod 2. The block 22 places the inner tube 3, completing the connection between the inner tube 3 and the first moving rod 2, and then closing the sealing door 11 to create an environment inside the vacuum chamber 1 that is isolated from the outside world, pure and stable, which is conducive to sublimation work; when the sublimation work is completed, the sealing door 11 is opened. As the sealing door 11 is opened, the second moving rod 21 rotatably installed on the inner wall of the sealing door 11 will drive the first moving rod 2 to slide along the limit block 12, driving the inner tube 3 to move outward in a straight line. When the sealing door 11 has completed its rotation, the staff can still pull the first moving rod 2 so that the second moving rod 21 moves along the moving groove 24 on the outer wall of the first moving rod 2, further pulling the inner tube 3 outward, which is more conducive to the staff to remove the inner tube 3, so that the staff can easily remove the inner tube 3 without using additional tools such as furnace hooks, thereby improving the convenience of operation and work efficiency.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A vacuum sublimation purification device for OLED materials, comprising a vacuum chamber (1), a sealing door (11) and an inner tube (3), characterized in that: A limiting block (12) is installed on the inner wall of the vacuum chamber (1), and a first moving rod (2) is slidably installed on the inner wall of the vacuum chamber (1), a second moving rod (21) is rotatably installed on the end of the first moving rod (2), a fixing groove (23) is provided on the end of the first moving rod (2), and a fixing block (22) is installed on the end of the first moving rod (2), a connecting port (31) is installed on the end of the inner tube (3), a connecting groove (32) is provided on the inner wall of the connecting port (31), and a connecting block (33) is installed on the outer wall of the inner tube (3).

2. The vacuum sublimation purification equipment for OLED materials according to claim 1, characterized in that: A second moving rod (21) is rotatably mounted on the inner wall of the sealing door (11), and a limiting block (12) for the first moving rod (2) to slide is mounted on the inner wall of the vacuum chamber (1).

3. The vacuum sublimation purification equipment for OLED materials according to claim 1, characterized in that: The inner wall of the vacuum chamber (1) is installed with multiple groups of inner tubes (3), and the ends of the inner tubes (3) close to the first moving rod (2) are provided with mounting grooves (34) corresponding to the fixing blocks (22).

4. The vacuum sublimation purification equipment for OLED materials according to claim 1, characterized in that: A fixing groove (23) corresponding to the connection port (31) is provided at the end of the first moving rod (2), and the diameter of the fixing block (22) is larger than that of the limiting block (12).

5. The vacuum sublimation purification equipment for OLED materials according to claim 1, characterized in that: The inner wall of the connection port (31) is provided with a plurality of connection grooves (32) at equal intervals, and the connection grooves (32) are designed to be inclined.

6. The vacuum sublimation purification equipment for OLED materials according to claim 1, characterized in that: A plurality of connection blocks (33) are installed at equal intervals on the outer wall of the inner tube (3) away from the connection port (31), and the connection blocks (33) correspond to the connection grooves (32). A sealing rubber pad is installed on the inner wall of the connection port (31).

7. The vacuum sublimation purification equipment for OLED materials according to claim 1, characterized in that: A moving groove (24) for the second moving rod (21) to slide is provided on the inner wall of the first moving rod (2), and after the sealing door (11) rotates, the second moving rod (21) moves out of the inner wall of the vacuum chamber (1).

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