Surface coating device for flexible ultra-thin glass

Abstract

The present invention relates to the technical field of ultra-thin glass surface coating, and mainly to a surface coating device for flexible ultra-thin glass, comprising a slit coating die head and a conveying platform, wherein docking frames connected to a lifting device are fixed on both sides of the slit coating die head, the slit coating die head is located above the conveying platform, and further comprises bearing seats fixed on both sides of the slit coating die head, and screw rods are rotatably installed through the two bearing seats. The present invention optimizes the traditional slit coating die head and adds a pre-coating mechanism thereto, so that when coating the ultra-thin glass, a thicker coating area squeezed out due to high slurry pressure can be collected, and then a driving component and a screw rod are cooperated to drive a moving seat to move synchronously with the conveying platform until a uniform coating area is coated on the outside of the ultra-thin glass, so that the coating is uniform, the coating quality is improved, and the need to cut the glass with unqualified coating after subsequent detection is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-thin glass surface coating, in particular to a surface coating device for flexible ultra-thin glass. Background Art

[0002] Ultra-thin flexible glass refers to glass with a thickness of less than 100um and is flexible. Its most prominent feature is its bendability. By using this bendability, the display device can be bent or folded, which makes it convenient for people to carry or use. However, due to the overall thinness of the glass, the strength is difficult to meet the industry's use requirements. At the same time, due to the brittleness of tempered glass itself, in order to improve the quality of the glass product itself, coating operations are usually performed on its surface.

[0003] At present, when coating glass, a transmission device is used to drive the glass to move horizontally to the slit coating die, and then the glass surface is coated. Since the glass is transmitted and coated piece by piece, the coating method is intermittent coating. In the intermittent coating process, when the die is discharging the material, the initial slurry instantaneous pressure used to overcome the static friction of the slurry in the die is relatively high, resulting in a "thick head" phenomenon at the beginning of coating, making the thickness of the area on the glass surface that has just started to be coated higher than the area that continues to be coated subsequently. Especially when coating ultra-thin glass, since the glass itself is thin, the coating requirements are higher, and the thick head coating will affect the quality of the glass coating, so that secondary inspection is required later, and the areas with excessively high coating thickness need to be cut. Summary of the invention

[0004] The object of the present invention is to provide a surface coating device for flexible ultra-thin glass, so as to solve the problem of uneven coating caused by the head thickness phenomenon when coating ultra-thin glass mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface coating device for flexible ultra-thin glass, comprising a slit coating die head and a conveying platform, wherein docking frames connected to the lifting device are fixed on both sides of the slit coating die head, and the slit coating die head is located above the conveying platform, and also comprises bearing seats fixed on both sides of the slit coating die head, and screw rods are rotatably installed through the two bearing seats, and a connecting plate is rotatably installed on the outer end of the screw rod, and a driving assembly is installed on the connecting plate, and the two screw rods are driven to rotate synchronously through the driving assembly; and a moving seat threadedly sleeved on the two screw rods, and docking plates are rotatably installed on both ends of the moving seat through a rotating shaft, and a baffle rod adapted to the docking plate is fixed on the connecting plate, and the docking plate is driven to rotate through the docking plate and the baffle rod is abutted against the docking plate; and a pre-coating mechanism installed at the bottom of the two docking plates, and the thick coating is collected by the pre-coating mechanism.

[0006] Preferably, the pre-coating mechanism includes two fitting seats, the two fitting seats are distributed under the two docking plates, and a docking rod connected to the bottom of the docking plate is fixed on the fitting seat, two support frames are fixed to the outer side of the fitting seat, and a rotating column is rotatably inserted between the support frames, a winding motor is fixed to the outer side of one of the support frames through a motor frame, the outer end of the other support frame is a detachable structure, and the output end of the winding motor is fixed to the outer end of the rotating column through a coupling, the outer side of the rotating column is slidably sleeved with an I-shaped tube, and flexible belts are wound around the outer sides of the two I-shaped tubes, the flexible belts are located under the two fitting seats, and the flexible belts are used to receive the head thick coating.

[0007] Preferably, rollers are fixed on the two support frames on one side, and the flexible belt is in contact with the outer sides of the rollers.

[0008] Preferably, the fitting seat is composed of a fixed seat and an adjusting seat, the fixed seat is docked with the bottom of the docking plate through a docking rod, a recess is provided at the bottom of the fixed seat, and a protrusion matching the recess is fixed on the top of the adjusting seat, an adjusting plate is fixed on the outer side of the fixed seat and the adjusting seat, and an adjusting rod is rotatably installed on the adjusting plate located on the outer side of the adjusting seat, and the adjusting rod is threadedly plugged into the adjusting plate located on the fixed seat.

[0009] Preferably, an arc-shaped plate adapted to the flexible belt is fixed to the bottom of the adjustment seat, and a correction block is fixed to the arc-shaped plate.

[0010] Preferably, the docking rod is rotatably docked with the bottom of the docking plate, and an adjustment column is fixed on the fixed seat, and adjustment frames are fixed on both sides of the connecting plate. An arc-shaped opening adapted to the adjustment column is opened in the adjustment frame, and when the docking plate and the baffle rod are against each other, the adjustment column is connected to the arc-shaped opening.

[0011] Preferably, a stopper is fixed to a side of the bottom of the docking plate away from the slit coating die head, and the stopper is magnetically attracted to the outer side of the fitting seat.

[0012] Preferably, a stabilizing frame fixed to the outer wall of the slot coating die is fixed on the connecting plate.

[0013] Preferably, the drive assembly includes a synchronous gear fixed to the outer ends of the two screw rods, the outer sides of the two synchronous gears are meshed with a synchronous belt, a drive motor is fixed to the connecting plate through a motor frame, and the output end of the drive motor is fixed to the outer end of one of the screw rods through a coupling.

[0014] Preferably, grooves are provided on the outer sides of both ends of the movable seat, the docking plate is slidably connected to the inner wall of the groove, and a magnetic block that is magnetically attracted to the outer side of the docking plate is fixed in the groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention optimizes the traditional slit coating die head and adds a pre-coating mechanism thereto, so that when coating the ultra-thin glass, the thicker coating area squeezed out due to the high slurry pressure can be collected, and then the driving component and the lead screw are cooperated to drive the moving seat to move synchronously with the conveying table until the uniform coating area is coated on the outside of the ultra-thin glass, so that the coating is uniform, the coating quality is improved, and the need to cut the glass with unqualified coating after subsequent inspection is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the docking structure of the slot coating die head and the pre-coating mechanism of the present invention;

[0019] Figure 3 It is a front view of the slot coating die head and the pre-coating mechanism of the present invention being connected;

[0020] Figure 4 It is a side view of the slit coating die head and the pre-coating mechanism of the present invention after partial section and docking;

[0021] Figure 5 It is a schematic diagram of the positional relationship between the pre-coating mechanism and the driving assembly of the present invention;

[0022] Figure 6 It is a partial cross-sectional structural schematic diagram of the pre-coating mechanism of the present invention;

[0023] Figure 7 This is a schematic diagram of the connection between the rotating column and the I-shaped pipe of the present invention;

[0024] Figure 8 It is a schematic diagram of the position relationship between the fixing seat and the adjusting seat of the present invention;

[0025] Fig. 9 It is a schematic diagram of the rotation state of the docking rod when the movable seat and the screw rod are in different positions of the present invention.

[0026] In the figure: 1. Slit coating die; 2. Conveying platform; 3. Bearing seat; 4. Screw; 5. Connecting plate; 6. Driving assembly; 7. Moving seat; 8. Docking plate; 9. Stop rod; 10. Pre-coating mechanism; 11. Laminating seat; 12. Docking rod; 13. Support frame; 14. Rotating column; 15. Winding motor; 16. I-shaped tube; 17. Flexible belt; 18. Roller; 19. Fixed seat; 20. Adjusting seat; 21. Notch; 22. Protrusion; 23. Adjusting plate; 24. Adjusting rod; 25. Arc plate; 26. Correction block; 27. Adjusting column; 28. Adjusting frame; 29. ​​Arc mouth; 30. Stop block; 31. Stabilizing frame; 32. Synchronous gear; 33. Synchronous belt; 34. Driving motor; 35. Groove; 36. Magnetic block. DETAILED DESCRIPTION

[0027] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1 - Figure 5 , a surface coating device for flexible ultra-thin glass shown in the figure comprises a slit coating die head 1 and a conveying platform 2, a docking frame connected to the lifting device is fixed on both sides of the slit coating die head 1, and the slit coating die head 1 is located above the conveying platform 2, and also comprises bearing seats 3 fixed on both sides of the slit coating die head 1, and screw rods 4 are rotatably installed through the two bearing seats 3, and a connecting plate 5 is rotatably installed on the outer end of the screw rod 4, and a driving assembly 6 is installed on the connecting plate 5, and the two screw rods 4 are driven to rotate synchronously through the driving assembly 6; and a moving seat 7 threadedly sleeved on the two screw rods 4, and docking plates 8 are rotatably installed at both ends of the moving seat 7 through a rotating shaft, and a baffle 9 adapted to the docking plate 8 is fixed on the connecting plate 5, and the docking plate 8 is driven to rotate through the docking plate 8 and the baffle 9; and a pre-coating mechanism 10 installed at the bottom of the two docking plates 8, and the pre-coating mechanism 10 is used to collect the head thick coating;

[0029] In this solution, the designed pre-coating mechanism 10 can collect the over-thick coating that is instantly extruded from the slit coating die 1, and then the driving component 6 is used to drive the moving seat 7 to move synchronously with the conveying platform 2, so that the ultra-thin glass can move to the bottom of the slit coating die 1 to start the coating operation, removing the thick coating area at the head. The subsequent coating can evenly extrude the slurry, making the coating uniform and the coating quality high. Among them, the lifting equipment is an existing product, which is used to drive the slit coating die 1 to rise and fall. The conveying platform 2 is designed with but not limited to adsorption holes, which are used to improve the adsorption and positioning of the ultra-thin glass and improve the conveying stability.

[0030] It should also be noted that, in order to improve the stability of the connecting plate 5 , a stabilizing frame 31 fixed to the outer wall of the slot coating die 1 is fixed on the connecting plate 5 .

[0031] For further information, see Figure 5 - Figure 8 The pre-coating mechanism 10 includes two fitting seats 11, which are distributed under the two docking plates 8. A docking rod 12 that is connected to the bottom of the docking plate 8 is fixed on the fitting seat 11. Two support frames 13 are fixed on the outer side of the fitting seat 11. A rotating column 14 is rotatably inserted between the support frames 13. A winding motor 15 is fixed to the outer side of one of the support frames 13 through a motor frame. The outer end of the other support frame 13 is a detachable structure. The output end of the winding motor 15 is fixed to the outer end of the rotating column 14 through a coupling. An I-shaped tube 16 is slidably sleeved on the outer side of the rotating column 14. A flexible belt 17 is wound around the outer side of the two I-shaped tubes 16. The flexible belt 17 is located under the two fitting seats 11. The flexible belt 17 is used to receive the head thick coating, wherein at least one plane is provided on the outer side of the rotating column 14, so that the I-shaped tube 16 can rotate with the rotation of the rotating column 14 when it is sleeved on the outer side of the rotating column 14;

[0032] It should be noted that: the winding motor 15 drives the rotating column 14 to rotate, thereby causing the I-shaped tube 16 to rotate accordingly, so that the winding flexible belt 17 at one end begins to loosen and the other end is wound up, thereby winding up the flexible belt 17 coated with the thickest coating, releasing a new section of the flexible belt 17, and collecting the thickest coating before starting the next round of glass coating.

[0033] It should also be noted that in order to improve the winding and unwinding of the flexible belt 17 , rollers 18 are fixed on the two support frames 13 located on one side, and the flexible belt 17 is in contact with the outer sides of the rollers 18 .

[0034] In the present scheme, in order to prevent the coating on the flexible belt 17 from being scraped off by the bottom of the bonding seat 11, it is designed to first unwind one end of the flexible belt 17 so that the flexible belt 17 at the horizontal end is in a loose state, and then rewind it to achieve the collection of the flexible belt 17 in a loose state, thereby reducing the scraping of the coating by the bonding seat 11. The flexible belt 17 is pulled until a new section of the flexible belt 17 is in a horizontal state. At this time, the other end continues to be rewinded so that the flexible belt 17 in the horizontal state is in a taut state, which is convenient for collecting the thick coating on the head.

[0035] For further information, see Figure 1 and Figure 2The driving assembly 6 includes a synchronous gear 32 fixed to the outer ends of the two screw rods 4, and a synchronous belt 33 is meshed on the outer sides of the two synchronous gears 32. A driving motor 34 is fixed to the connecting plate 5 through a motor frame, and the output end of the driving motor 34 is fixed to the outer end of one of the screw rods 4 through a coupling;

[0036] The driving assembly 6 drives the two screw rods 4 to rotate synchronously. The driving motor 34 rotates to drive one of the screw rods 4 to rotate. Under the action of the synchronous gear 32 and the synchronous belt 33, the two screw rods 4 rotate synchronously.

[0037] In this solution, the docking plate 8 moves along with the movement of the moving seat 7. When it abuts against the blocking rod 9, the docking plate 8 will rotate accordingly. When retreating, under the action of gravity, the rotated docking plate 8 will rotate in the opposite direction to return to its initial state. In order to improve the stability of the docking plate 8 in the initial state, grooves 35 are opened on the outer sides of both ends of the moving seat 7. The docking plate 8 is slidably connected to the inner wall of the groove 35, and a magnetic block 36 is fixed in the groove 35 to be magnetically attracted to the outer side of the docking plate 8.

[0038] In this solution, the process of collecting the thick coating of the extruder head of the slot coating die head 1 includes the following steps:

[0039] The first step is to install new glass, and as the conveyor 2 moves, the slit coating die 1 is driven up and down by the lifting device, so that the bottom flexible belt 17 is in contact with the surface of the conveyor 2, and moves to be in contact with the outer end of the flexible belt 17;

[0040] In the second step, the driving assembly 6 starts to operate, so that the moving seat 7 and the flexible belt 17 move synchronously with the glass, and at the same time, the slit coating die head 1 starts to pressurize and extrude the internal slurry, and the head thick coating begins to be coated on the outside of the flexible belt 17;

[0041] In the third step, the docking plate 8 moves to contact the stopper 9, and then continues to move. Fig. 9 As described above, the pre-coating mechanism 10 starts to rotate, driving it to flip up, thereby breaking away from the state of being attached to the glass, and the uniform coating of the slit coating die head 1 begins to be applied to the outer side of the glass, making the coating more uniform;

[0042] Step 4: By rotating the winding motor 15, the coated flexible belt 17 begins to be collected and a new section of the flexible belt 17 is removed;

[0043] Step 5: After the coating process on the glass is completed, the conveying table 2 is reset, and the driving assembly 6 rotates in the opposite direction, so that the movable seat 7 and the docking plate 8 are reset accordingly, and the flexible belt 17 is again under the slit coating die head 1;

[0044] In the sixth step, after all the clean flexible belts 17 have been used up, the personnel dismantle the support frame 13, remove the flexible belt 17 and the I-shaped tube 16, and install a new flexible belt 17 to start the next round of coating operation, wherein the disassembly and installation are simple and convenient.

[0045] It should also be noted that the thickness of the flexible tape 17 corresponds to the thickness of the ultra-thin glass, and the flexible tape 17 after use can be reused after being cleaned and dried.

[0046] In this solution, the flexible belt 17 can be dried with the help of hot air when it is rotated and lifted, so as to facilitate subsequent winding.

[0047] Example 2: Please refer to Figure 6 and Figure 8 This embodiment further explains the first embodiment, and the difference lies in that the shape of the fitting seat 11 is optimized so that the fitting seat 11 can be fine-tuned accordingly to adjust the distance between the slit coating die 1 and the flexible belt 17, so that the coating thickness can be adjusted.

[0048] Specifically, the fitting seat 11 is composed of a fixed seat 19 and an adjusting seat 20. The fixed seat 19 is connected to the bottom of the docking plate 8 through the docking rod 12. A notch 21 is provided at the bottom of the fixed seat 19. A protrusion 22 adapted to the notch 21 is fixed to the top of the adjusting seat 20. An adjusting plate 23 is fixed to the outside of the fixed seat 19 and the adjusting seat 20. An adjusting rod 24 is rotatably installed on the adjusting plate 23 located on the outside of the adjusting seat 20. The adjusting rod 24 is threadedly plugged with the adjusting plate 23 located on the fixed seat 19.

[0049] In this solution, when it is necessary to adjust the distance between the flexible belt 17 and the slit coating die 1, the personnel rotate the adjustment rod 24 to adjust the distance between the adjustment seat 20 and the fixed seat 19 accordingly, thereby adjusting the distance between the flexible belt 17 and the slit coating die 1 accordingly to meet the requirements of adjusting the coating thickness.

[0050] It should also be noted that in order to improve the guiding and conveying of the flexible belt 17, an arc plate 25 adapted to the flexible belt 17 is fixed at the bottom of the adjustment seat 20. At the same time, in order to prevent the flexible belt 17 from running off track, a correction block 26 is fixed on the arc plate 25.

[0051] Example 3: Please refer to Figure 8 and Fig. 9 This embodiment further illustrates other embodiments, and the difference lies in that the shape of the fixing seat 19 when lifted is optimized, so that the flexible belt 17 is always in a horizontal state, preventing the inclined coating from flowing onto the glass.

[0052] Specifically, the docking rod 12 is rotatably docked with the bottom of the docking plate 8, an adjustment column 27 is fixed on the fixed seat 19, and an adjustment frame 28 is fixed on both sides of the connecting plate 5. An arc-shaped opening 29 adapted to the adjustment column 27 is opened in the adjustment frame 28. When the docking plate 8 and the blocking rod 9 are against each other, the adjustment column 27 is connected with the arc-shaped opening 29;

[0053] In this solution, when the docking plate 8 and the blocking rod 9 are against each other, the adjusting column 27 is at the arc-shaped opening 29. As the moving seat 7 continues to move, the docking plate 8 is driven to rotate, and the adjusting column 27 moves with the arc-shaped opening 29. Fig. 9 As shown, when the fixing seat 19 is lifted up following the rotation of the docking plate 8, the flexible belt 17 is always kept in a horizontal state, and the flexible belt 17 does not tilt, thereby preventing the coating just extruded from flowing and making the subsequent collection more stable.

[0054] It should also be noted that when the docking plate 8 returns to the vertical state, the adjustment column 27 on the fixed seat 19 retreats along the arc-shaped opening 29 to maintain the reset in the vertical state. In order to ensure the stable docking between the docking plate 8 and the fixed seat 19 in the vertical state, a stop block 30 is fixed on the side of the bottom of the docking plate 8 away from the slit coating die 1, and the stop block 30 and the outer side of the fitting seat 11 are magnetically attracted to each other.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface coating device for flexible ultra-thin glass, comprising: A slit coating die head (1) and a conveying platform (2), wherein docking frames connected to the lifting device are fixed on both sides of the slit coating die head (1), and the slit coating die head (1) is located above the conveying platform (2); It is characterized by further comprising: Bearing seats (3) are fixed on both sides of the slot coating die head (1), and screw rods (4) are rotatably mounted through the two bearing seats (3), and connecting plates (5) are rotatably mounted on the outer ends of the screw rods (4), and a driving assembly (6) is mounted on the connecting plate (5), and the driving assembly (6) drives the two screw rods (4) to rotate synchronously; and, A movable seat (7) is threadedly sleeved on the two screw rods (4), and docking plates (8) are rotatably mounted on both ends of the movable seat (7) through a rotating shaft. A stopper rod (9) adapted to the docking plate (8) is fixed on the connecting plate (5), and the docking plate (8) is driven to rotate by abutting against the stopper rod (9); and A pre-coating mechanism (10) is installed at the bottom of the two docking plates (8), and the thick coating is collected by the pre-coating mechanism (10); the pre-coating mechanism (10) comprises two laminating seats (11), the two laminating seats (11) are distributed under the two docking plates (8), a docking rod (12) which is connected to the bottom of the docking plates (8) is fixed on the laminating seat (11), two support frames (13) are fixed on the outside of the laminating seat (11), a rotating column (14) is rotatably inserted between the support frames (13), and a winding rod (12) is fixed on the outside of one of the support frames (13) through a motor frame. The motor (15) and the outer end of the other support frame (13) are detachable structures. The output end of the winding motor (15) is fixed to the outer end of the rotating column (14) through a coupling. The outer side of the rotating column (14) is slidably sleeved with an I-shaped tube (16). The outer sides of the two I-shaped tubes (16) are wrapped with flexible belts (17). The flexible belts (17) are located below the two fitting seats (11). The flexible belts (17) are used to receive the head thick coating. Rollers (18) are fixed on the two support frames (13) on one side. The flexible belts (17) fit the outer sides of the rollers (18). The fitting seats (11) is composed of a fixed seat (19) and an adjusting seat (20), the fixed seat (19) is butted with the bottom of the butt plate (8) through a butt rod (12), a notch (21) is provided at the bottom of the fixed seat (19), a protrusion (22) adapted to the notch (21) is fixed at the top of the adjusting seat (20), an adjusting plate (23) is fixed to the outer sides of the fixed seat (19) and the adjusting seat (20), an adjusting rod (24) is rotatably mounted on the adjusting plate (23) located on the outer side of the adjusting seat (20), and the adjusting rod (24) is rotatably mounted on the adjusting plate located on the fixed seat (19). (23) threaded connection; an arc-shaped plate (25) adapted to the flexible belt (17) is fixed to the bottom of the adjustment seat (20), and a correction block (26) is fixed to the arc-shaped plate (25); the docking rod (12) is rotatably docked with the bottom of the docking plate (8), an adjustment column (27) is fixed to the fixed seat (19), and an adjustment frame (28) is fixed on both sides of the connecting plate (5), and an arc-shaped opening (29) adapted to the adjustment column (27) is opened in the adjustment frame (28), and when the docking plate (8) and the stop rod (9) are in contact, the adjustment column (27) and the arc-shaped opening (29) are in contact with each other.

2. The surface coating device for flexible ultra-thin glass according to claim 1, characterized in that: A stopper (30) is fixed to the bottom of the docking plate (8) on a side away from the slit coating die head (1), and the stopper (30) and the outer side of the fitting seat (11) are magnetically attracted to each other.

3. The surface coating device for flexible ultra-thin glass according to claim 1, characterized in that: A stabilizing frame (31) fixed to the outer wall of the slit coating die head (1) is fixed on the connecting plate (5).

4. The surface coating device for flexible ultra-thin glass according to claim 1, characterized in that: The driving assembly (6) comprises a synchronous gear (32) fixed to the outer ends of the two screw rods (4), the outer sides of the two synchronous gears (32) are meshed with a synchronous belt (33), a driving motor (34) is fixed to the connecting plate (5) via a motor frame, and the output end of the driving motor (34) is fixed to the outer end of one of the screw rods (4) via a coupling.

5. The surface coating device for flexible ultra-thin glass according to claim 1, characterized in that: Grooves (35) are provided on the outer sides of both ends of the movable seat (7), the docking plate (8) is slidably connected to the inner wall of the groove (35), and a magnetic attraction block (36) is fixed in the groove (35) and is magnetically attracted to the outer side of the docking plate (8).

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