An OLED and substrate air drying box

Abstract

The present invention discloses an OLED and substrate air-drying box, comprising an air-drying box and an air-drying platform. The air-drying box comprises two groups, which are respectively arranged on a frame in parallel and at intervals along the material transmission direction to form a double air-drying channel; the air-drying platform comprises at least two groups, which are arranged in the air-drying box and correspondingly arranged at the air-drying station and the buffer station. The air-drying platform is a hollow support structure. The OLED substrate to be air-dried is placed on the air-drying platform. After the air-drying arm below the air-drying platform passes upward through the air-drying platform to support the OLED substrate, it moves linearly through the air-drying component for air-drying, and then the air-drying arm descends and returns linearly from under the air-drying platform. The present invention adopts a double air-drying channel and a single multi-piece air-drying method to effectively improve the air-drying efficiency. The hollow vacuum bearing and adsorption structure is adopted to synchronously complete the upper and lower air-drying actions during the bearing and moving process, and realize independent adsorption and fixation of the OLED and FPC to ensure position stability during the moving and air-drying process.

Description

Technical Field

[0001] The present invention relates to the field of automation equipment, and in particular to an OLED and substrate air-drying box. Background Art

[0002] In the field of flat panel display device production equipment, the components involved include glass substrates, cover plates, FPCs, and various optical film materials. When assembling and bonding the components of flat panel display devices, pre-processing steps are required. For example, the cleaning step is an essential front-end step when assembling and bonding flat panel display devices. Its function is to clean the screen surface. In the OLED screen production process, there is an intermediate layer of glue between the OLED and the upper substrate. This intermediate layer of glue needs to be removed by laser stripping. The laser is irradiated on the substrate surface, passes through the substrate, and then shoots onto the intermediate glue layer to achieve the function of stripping the glue layer. In order to ensure that the laser effectively penetrates the substrate and reduce the obstruction caused by debris on the substrate surface, the substrate surface needs to be cleaned before laser stripping. Since the debris sticking to the substrate surface is difficult to remove, the generally used process is grinding cleaning, that is, the grinding disk is pressed against the substrate surface and the substrate surface is ground by the rotation of the grinding disk to separate the debris from the substrate surface and then remove it.

[0003] Because OLED substrates require spraying with a liquid or a gas-liquid mixture during the cleaning process to enhance cleanliness, residual liquid remains on the substrate surface after polishing and cleaning. This residual liquid must be removed by drying before proceeding to the next step. Air drying is the commonly used drying process, which requires simultaneous drying of both the top and bottom surfaces. Traditional air drying equipment cannot simultaneously dry both surfaces while conveying the sheet-shaped OLED. Furthermore, strong winds during air drying can impact the OLED. If the OLED is conveyed without securing means during the air drying process, it can easily be blown away by strong winds, causing it to shift position and affect drying and conveying. Furthermore, because the OLED's side is connected to an FPC, the FPC's shape, structure, and material properties differ from those of the OLED, requiring different load-carrying and adsorption mechanisms. Furthermore, traditional stand-alone air dryers can only dry a single sheet of material at a time, resulting in low efficiency and inability to meet the air drying capacity requirements of high-speed automated production lines. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned existing technologies and provide an OLED and substrate drying box that adopts dual drying channels and a single multi-piece drying method, which effectively improves the drying efficiency. It adopts a hollow vacuum carrying and adsorption structure to simultaneously complete the upper and lower surface drying actions during the carrying and moving process, and realizes independent adsorption and fixation of OLED and FPC, ensuring the position stability of OLED and substrate during the moving and drying process.

[0005] The technical solution adopted by the present invention is as follows: an OLED and substrate air-drying box, comprising an air-drying box and an air-drying carrier, wherein the air-drying box comprises two groups, which are respectively arranged on a frame at parallel intervals along the material transmission direction to form a double air-drying channel, and a single air-drying channel comprises an air-drying station and a buffer station arranged in parallel along a straight line direction; the air-drying carrier comprises at least two groups, the air-drying carrier is arranged in the air-drying box, and is correspondingly arranged at the air-drying station and the buffer station, the air-drying carrier is a hollow supporting structure, the OLED substrate to be air-dried is placed on the air-drying carrier, at the air-drying station, the air-drying lifting arm under the air-drying carrier passes upward through the air-drying carrier to support the OLED substrate and then rises to above the air-drying carrier, and moves along a straight line through the air-drying assembly arranged between the air-drying station and the buffer station for air-drying, and then the air-drying lifting arm descends to place the OLED substrate at the buffer station, the air-drying lifting arm passes through the air-drying carrier from top to bottom, and returns in a straight line from under the air-drying carrier to support the next group of OLED substrates.

[0006] Preferably, the air-drying box is a box-shaped structure with an inner opening, and a single air-drying channel includes two air-drying boxes arranged in parallel. The two air-drying boxes are correspondingly arranged at the air-drying station and the cache station, and the front and rear ends of the air-drying box located at the air-drying station are open, and the front end and top end of the air-drying box located at the cache station are open.

[0007] Preferably, the air-drying platform includes a platform support, a platform bracket, an OLED bearing part and an FPC bearing part, wherein the above-mentioned platform support is vertically arranged in the air-drying box; the above-mentioned platform bracket is horizontally arranged on the platform support, the platform bracket is a double-layer structure, and a moving channel is formed in the middle of the platform bracket; the above-mentioned OLED bearing part is arranged on one side of the platform bracket, and the OLED and its substrate are supported and adsorbed and fixed by the OLED bearing part, and the FPC bearing part is arranged on the other side of the platform bracket, and the FPC connected to one side of the OLED is supported by the FPC bearing part, and the OLED bearing part and the FPC bearing part are upper and lower hollow structures to facilitate the movement and upper and lower air-drying of the OLED substrate.

[0008] Preferably, the OLED supporting part includes an OLED supporting plate, an OLED support bar, a vacuum joint and an OLED suction nozzle, wherein the above-mentioned OLED supporting plates include at least two, the OLED supporting plates are arranged on the inner side of the carrier bracket, and a through groove is provided in the middle of the OLED supporting plate; the above-mentioned OLED support bar includes at least two, the OLED support bars are arranged on the OLED supporting plate in parallel and at intervals along both sides of the through groove, adjacent OLED support bars form a strip-shaped gap running through from top to bottom, and the OLED support bars form an OLED supporting area on the OLED supporting plate; the above-mentioned OLED supporting plate and the OLED support bar are respectively provided with air paths, and the air paths of the OLED supporting plate and the OLED support bar are connected.

[0009] Preferably, the vacuum joint is arranged on the side of the OLED carrier board and is connected to the internal air path of the OLED carrier board; the above-mentioned OLED suction nozzle includes at least two, the OLED suction nozzle is arranged on the OLED support bar and is connected to the internal air path of the OLED support bar, and a vacuum negative pressure is generated at the OLED suction nozzle to suck and fix the OLED substrate downward.

[0010] Preferably, the FPC bearing portion includes an FPC bearing board, which includes at least two FPC bearing boards. The FPC bearing boards are horizontally arranged on the outside of the bearing bracket corresponding to the OLED bearing boards, and at least two strip-shaped gaps are opened on the FPC bearing boards.

[0011] The beneficial effects of the present invention are:

[0012] The present invention innovates to address the deficiencies and defects of the existing technology and designs a drying box that adopts dual drying channels and a single multi-piece drying method, which effectively improves the drying efficiency. It adopts a hollow vacuum carrying and adsorption structure to simultaneously complete the upper and lower surface drying actions during the carrying and moving process, and realizes independent adsorption and fixation of OLED and FPC, ensuring the position stability of the OLED and substrate drying box during the moving and drying process.

[0013] The present invention adopts a dual air-drying channel design, with two rows of air-drying boxes arranged in parallel and at intervals on the frame, and an air-drying platform arranged in the air-drying box, forming a single air-drying channel along the straight direction of the air-drying platform; the single air-drying channel is sequentially provided with an air-drying station and a buffer station, an upper air-drying component is provided in front of the air-drying station, and an upper and lower air-drying component is provided between the air-drying station and the buffer station; at the same time, the air-drying platform of the present invention can carry multiple OLEDs at the same time, and the air-drying lifting arm arranged on the side of the air-drying platform synchronously lifts multiple OLEDs from the air-drying platform for air-drying, and the air-dried OLEDs are taken out from the two air-drying channels to the transfer platform respectively through the transfer mechanism arranged across the rear ends of the two air-drying channels, and the unloading mechanism sucks the OLEDs from the transfer platform and moves them to the next workstation. This dual air-drying channel performs air-drying independently, and cooperates with the design of synchronously lifting, adsorbing and moving multiple OLEDs for air-drying, which greatly improves the air-drying efficiency and adapts to the online air-drying capacity requirements of high-speed automated production lines. In addition, in order to ensure the transmission and removal requirements of OLED, two air-drying boxes are arranged side by side in the single air-drying channel of the present invention, which are located at the air-drying station and the cache station from front to back respectively. The inner side of the two air-drying boxes is open to facilitate the air-drying lifting arm to lift and transfer the OLED; the front and back sides of the air-drying box at the air-drying station are open, so that the OLED passes through the upper air-drying component from the front opening to dry the upper surface and then enters the air-drying carrier in the air-drying box, and the OLED passes through the upper and lower air-drying components from the rear opening to enter the air-drying carrier in the air-drying box at the cache station; the front and top of the air-drying box at the cache station are open, the front opening is convenient for the OLED to enter, and the top opening is convenient for the transfer lifting arm to approach the air-drying carrier of the air-drying box from above to take out the OLED.

[0014] The air-drying platform of the present invention adopts a platform bracket with an upper and lower double-layer structure as the carrying body. The lower part of the platform bracket forms a moving channel, and the upper part of the platform bracket is a carrying plane, which is provided with an OLED carrying component and an FPC carrying component. The OLED carrying component is mainly based on the OLED carrying board, including two OLED carrying boards arranged in parallel. A through groove is opened in the middle of the OLED carrying board so that the air-drying moving arm can pass through up and down; the OLED carrying board is provided with a plurality of OLED branches at parallel intervals near both sides of the through groove, and a gap space is formed between adjacent OLED branches so that the air-drying moving arm can pass through up and down; an OLED carrying area is formed between the OLED carrying board and the OLED branches. In addition, the present invention further provides interconnected air paths inside the OLED carrier board and the OLED support strips. A vacuum connector is connected to the side of the OLED carrier board to facilitate external connection to a vacuum generator. A plurality of OLED suction nozzles are arranged on the OLED support strips. The vacuum connector and the OLED suction nozzles are respectively connected to the air paths inside the OLED carrier board and the OLED support strips, thereby generating a vacuum negative pressure at the OLED suction nozzles to downwardly absorb and fix the OLED placed on the OLED support strips; the FPC carrier portion is close to one side of the OLED carrier portion. The FPC carrier portion is an FPC carrier plate with a plurality of strip-shaped slits, which is used to support the FPC on one side of the OLED and ensure that it can be air-dried and moved up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the three-dimensional structural diagrams of the present invention.

[0016] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 3 This is one of the three-dimensional structural schematic diagrams of the air-drying carrier of the present invention.

[0018] Figure 4 This is the second schematic diagram of the three-dimensional structure of the air-drying carrier of the present invention.

[0019] Figure 5 This is the third schematic diagram of the three-dimensional structure of the air-drying carrier of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1 to 5As shown, the technical solution adopted by the present invention is as follows: an OLED and substrate air-drying box, including an air-drying box 6 and an air-drying platform 2, wherein the air-drying box 6 includes two groups, which are respectively arranged on the frame in parallel and spaced along the material transmission direction to form a double air-drying channel, and a single air-drying channel includes an air-drying station and a buffer station arranged in parallel along a straight line direction; the air-drying platform 2 includes at least two groups, the air-drying platform 2 is arranged in the air-drying box 6, and is correspondingly arranged at the air-drying station and the buffer station, and the air-drying platform 2 is hollow Support structure, the OLED substrate to be air-dried is placed on the air-drying platform 2, and at the air-drying station, the air-drying lifting arm below the air-drying platform 2 passes upward through the air-drying platform 2 to support the OLED substrate and then rises to above the air-drying platform 2, and moves in a straight line through the air-drying assembly arranged between the air-drying station and the cache station for air-drying. The air-drying lifting arm then descends and places the OLED substrate at the cache station. The air-drying lifting arm passes through the air-drying platform 2 from top to bottom, and returns in a straight line from under the air-drying platform 2 to hold the next group of OLED substrates.

[0022] The air-drying box 6 is a box-shaped structure with an inner opening. A single air-drying channel includes two air-drying boxes 6 arranged in parallel. The two air-drying boxes 6 are correspondingly arranged at the air-drying station and the cache station. The front and rear ends of the air-drying box 6 located at the air-drying station are open, and the front end and top end of the air-drying box 6 located at the cache station are open.

[0023] The air-drying platform 2 includes a platform support 21, a platform bracket 22, an OLED bearing part and an FPC bearing part, wherein the above-mentioned platform support 21 is vertically arranged in the air-drying box 6; the above-mentioned platform bracket 22 is horizontally arranged on the platform support 21, and the platform bracket 22 is a double-layer structure with a moving channel A formed in the middle of the platform bracket 22; the above-mentioned OLED bearing part is arranged on one side of the platform bracket 22, and the OLED and its substrate are supported and adsorbed and fixed by the OLED bearing part, and the FPC bearing part is arranged on the other side of the platform bracket 22, and the FPC connected to one side of the OLED is supported by the FPC bearing part, and the OLED bearing part and the FPC bearing part are hollow structures in the upper and lower parts, so as to move and air-dry the OLED substrate up and down.

[0024] The OLED supporting portion includes an OLED supporting plate 23, an OLED support bar 24, a vacuum joint 25 and an OLED suction nozzle 26, wherein the above-mentioned OLED supporting plates 23 include at least two pieces, the OLED supporting plates 23 are arranged on the inner side of the carrier bracket 22, and a through groove B is provided in the middle of the OLED supporting plate 23; the above-mentioned OLED support bar 24 includes at least two pieces, the OLED support bars 24 are arranged on the OLED supporting plate 23 in parallel and spaced along both sides of the through groove B, and adjacent OLED support bars 24 form a strip-shaped gap that passes through from top to bottom. The OLED support bars 24 form an OLED supporting area on the OLED supporting plate 23; the above-mentioned OLED supporting plate 23 and the OLED support bar 24 are respectively provided with air paths inside, and the air paths of the OLED supporting plate 23 and the OLED support bar 24 are connected.

[0025] The vacuum connector 25 is provided on the side of the OLED carrier plate 23 and is connected to the internal air path of the OLED carrier plate 23. The above-mentioned OLED suction nozzles 26 include at least two. The OLED suction nozzles 26 are provided on the OLED support bar 24 and are connected to the internal air path of the OLED support bar 24. The OLED suction nozzles 26 generate a vacuum negative pressure to suck and fix the OLED substrate downward.

[0026] Preferably, the FPC supporting portion includes an FPC supporting board 27 , which includes at least two pieces. The FPC supporting board 27 is horizontally arranged on the outside of the supporting bracket 22 corresponding to the OLED supporting board 23 , and at least two strip-shaped gaps are opened on the FPC supporting board 27 .

[0027] Furthermore, the present invention designs a drying box for OLED and substrates that adopts dual drying channels and a single multi-piece drying method, which effectively improves the drying efficiency. It adopts a hollow vacuum carrying and adsorption structure to simultaneously complete the upper and lower drying actions during the carrying and moving process, and realizes independent adsorption and fixation of OLED and FPC, ensuring the position stability of the OLED and substrate drying box during the moving and drying process. The present invention adopts a dual air-drying channel design, with two rows of air-drying boxes arranged in parallel and at intervals on the frame, and an air-drying platform arranged in the air-drying box, forming a single air-drying channel along the straight direction of the air-drying platform; the single air-drying channel is sequentially provided with an air-drying station and a buffer station, an upper air-drying component is provided in front of the air-drying station, and an upper and lower air-drying component is provided between the air-drying station and the buffer station; at the same time, the air-drying platform of the present invention can carry multiple OLEDs at the same time, and the air-drying lifting arm arranged on the side of the air-drying platform synchronously lifts multiple OLEDs from the air-drying platform for air-drying, and the air-dried OLEDs are taken out from the two air-drying channels to the transfer platform respectively through the transfer mechanism arranged across the rear ends of the two air-drying channels, and the unloading mechanism sucks the OLEDs from the transfer platform and moves them to the next workstation. This dual air-drying channel performs air-drying independently, and cooperates with the design of synchronously lifting, adsorbing and moving multiple OLEDs for air-drying, which greatly improves the air-drying efficiency and adapts to the online air-drying capacity requirements of high-speed automated production lines. In addition, in order to ensure the transmission and removal requirements of OLED, two air-drying boxes are arranged side by side in the single air-drying channel of the present invention, which are located at the air-drying station and the cache station from front to back respectively. The inner side of the two air-drying boxes is open to facilitate the air-drying lifting arm to lift and transfer the OLED; the front and back sides of the air-drying box at the air-drying station are open, so that the OLED passes through the upper air-drying component from the front opening to dry the upper surface and then enters the air-drying carrier in the air-drying box, and the OLED passes through the upper and lower air-drying components from the rear opening to enter the air-drying carrier in the air-drying box at the cache station; the front and top of the air-drying box at the cache station are open, the front opening is convenient for the OLED to enter, and the top opening is convenient for the transfer lifting arm to approach the air-drying carrier of the air-drying box from above to take out the OLED. The air-drying platform of the present invention adopts a platform bracket with an upper and lower double-layer structure as the carrying body. The lower part of the platform bracket forms a moving channel, and the upper part of the platform bracket is a carrying plane, which is provided with an OLED carrying component and an FPC carrying component. The OLED carrying component is mainly based on the OLED carrying board, including two OLED carrying boards arranged in parallel. A through groove is opened in the middle of the OLED carrying board so that the air-drying moving arm can pass through up and down; the OLED carrying board is provided with a plurality of OLED branches at parallel intervals near both sides of the through groove, and a gap space is formed between adjacent OLED branches so that the air-drying moving arm can pass through up and down; an OLED carrying area is formed between the OLED carrying board and the OLED branches.In addition, the present invention further provides interconnected air paths inside the OLED carrier board and the OLED support strips. A vacuum connector is connected to the side of the OLED carrier board to facilitate external connection to a vacuum generator. A plurality of OLED suction nozzles are arranged on the OLED support strips. The vacuum connector and the OLED suction nozzles are respectively connected to the air paths inside the OLED carrier board and the OLED support strips, thereby generating a vacuum negative pressure at the OLED suction nozzles to downwardly absorb and fix the OLED placed on the OLED support strips; the FPC carrier portion is close to one side of the OLED carrier portion. The FPC carrier portion is an FPC carrier plate with a plurality of strip-shaped slits, which is used to support the FPC on one side of the OLED and ensure that it can be air-dried and moved up and down.

[0028] The embodiments of the present invention are merely to introduce specific implementation methods and are not intended to limit the scope of protection. Persons skilled in the art may make certain modifications inspired by these embodiments. Therefore, any equivalent changes or modifications made in accordance with the scope of the present invention are within the scope of the patent claims of the present invention.

Claims

1. An OLED and substrate air drying box, characterized by: The invention comprises an air drying box (6) and an air drying platform (2), wherein the air drying box (6) comprises two groups, which are respectively arranged on the frame in parallel and at intervals along the material transmission direction to form a double air drying channel, and a single air drying channel comprises an air drying station and a buffer station arranged in parallel along a straight line direction; the air drying platform (2) comprises at least two groups, the air drying platform (2) is arranged in the air drying box (6), and is correspondingly arranged at the air drying station and the buffer station, the air drying platform (2) is a hollow support structure, and the OLED substrate to be air dried is placed on the frame. The board is placed on the air-drying platform (2), and at the air-drying station, the air-drying lifting arm passes upward through the air-drying platform (2) below the air-drying platform (2) to hold the OLED substrate and then rises to the top of the air-drying platform (2), and moves along a straight line through the air-drying assembly arranged between the air-drying station and the buffer station for air-drying. After that, the air-drying lifting arm descends to place the OLED substrate at the buffer station, and the air-drying lifting arm passes through the air-drying platform (2) from top to bottom, and returns straightly from below the air-drying platform (2) to hold the next group of OLED substrates; The air drying box (6) is a box-shaped structure with an inner opening. The single air drying channel includes two air drying boxes (6) arranged in parallel. The two air drying boxes (6) are correspondingly arranged at the air drying station and the buffer station. The front and rear ends of the air drying box (6) located at the air drying station are open, and the front and top ends of the air drying box (6) located at the buffer station are open. The air-drying platform (2) includes a platform support (21), a platform bracket (22), an OLED bearing part and an FPC bearing part, wherein the platform support (21) is vertically arranged in the air-drying box (6); the platform bracket (22) is horizontally arranged on the platform support (21), the platform bracket (22) is a double-layer structure, and a moving channel (A) is formed in the middle of the platform bracket (22); the OLED bearing part is arranged on one side of the platform bracket (22), and the OLED and its substrate are supported and adsorbed and fixed by the OLED bearing part, and the FPC bearing part is arranged on the other side of the platform bracket (22), and the FPC connected to one side of the OLED is supported by the FPC bearing part, and the OLED bearing part and the FPC bearing part are hollow structures in the upper and lower parts, so as to facilitate the movement and air-drying of the OLED substrate.

2. The OLED and substrate air drying box according to claim 1, characterized in that: The OLED supporting portion comprises an OLED supporting plate (23), an OLED support bar (24), a vacuum joint (25) and an OLED suction nozzle (26), wherein the OLED supporting plate (23) comprises at least two pieces, the OLED supporting plate (23) is arranged on the inner side of the carrier bracket (22), and a through groove (B) is provided in the middle of the OLED supporting plate (23); the OLED support bar (24) comprises at least two pieces, the OLED support bar (24) is arranged on the OLED supporting plate (23) in parallel and spaced along both sides of the through groove (B), adjacent OLED support bars (24) form a strip-shaped gap that passes through from top to bottom, and the OLED support bar (24) forms an OLED supporting area on the OLED supporting plate (23); the OLED supporting plate (23) and the OLED support bar (24) are respectively provided with air paths inside, and the air paths of the OLED supporting plate (23) and the OLED support bar (24) are connected.

3. The OLED and substrate air-drying box according to claim 2, characterized in that: The vacuum joint (25) is arranged on the side of the OLED carrier plate (23) and is in communication with the internal air path of the OLED carrier plate (23); the OLED suction nozzles (26) include at least two, and the OLED suction nozzles (26) are arranged on the OLED support bar (24) and are in communication with the internal air path of the OLED support bar (24). The OLED suction nozzles (26) generate a vacuum negative pressure so as to suck and fix the OLED substrate downward.

4. The OLED and substrate air-drying box according to claim 3, characterized in that: The FPC bearing portion includes an FPC bearing plate (27), which includes at least two FPC bearing plates (27). The FPC bearing plates (27) are horizontally arranged on the outside of the carrier bracket (22) corresponding to the OLED bearing plates (23), and at least two strip-shaped gaps are opened on the FPC bearing plates (27).

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