Cleaning device for repairing dislocation FPC (Flexible Printed Circuit)

Abstract

The invention relates to a cleaning device for misplaced FPC repair, which comprises a chassis, a vacuum carrying table capable of moving up and down is arranged above the chassis, hanging plates are symmetrically arranged on two sides of the upper wall of the chassis in a sliding manner, path air cylinders are hinged to the upper ends of the hanging plates, upper heating heads are arranged on telescopic rods of the path air cylinders, arc-shaped grooves are further formed in the hanging plates, and vertical grooves are connected to the lower ends of the arc-shaped grooves. The end of the upper heating head slides in a groove hole formed by the arc-shaped groove and the vertical groove, a sliding table is arranged on the side, away from the hanging plate, of the base plate in a sliding mode, an L-shaped position leaning plate is arranged above the sliding table, and a plurality of sets of fragment-preventing pressing heads capable of moving up and down are arranged above the L-shaped position leaning plate. The ACF glue is softened from two directions through the upper heating head and the lower heating head, the bonding force between the FPC and the glass panel is reduced, the glass is prevented from being damaged when the FPC is cleaned, under the action of the arc-shaped groove and the vertical groove, the glass panel can move from the inner side to the outer side of the glass panel and press the FPC, the downward pressing folding phenomenon caused by bending of the FPC is avoided, and the production efficiency is improved. And the stability of the ACF glue softening process is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of FPC, and in particular relates to a cleaning device for repairing a misaligned FPC. Background Art

[0002] FPC (Flexible Printed Circuit) is connected to the glass panel and cooperates with PCB (Printed Circuit Board) and other driving components to realize the display control of the glass panel. When combining FPC with the glass panel, a layer of ACF glue (Anisotropic Conductive Film) needs to be attached between the FPC and the glass panel. ACF glue can connect the gold fingers in the binding area of ​​the FPC with the gold fingers in the binding area of ​​the glass panel to achieve the effect of signal conduction, and can also make the FPC tightly bonded to the glass panel to prevent the FPC from falling off.

[0003] However, in the actual production process, due to unstable processes, such as abnormal warping of incoming materials, abnormal optical coordinate positioning or abnormal vacuum positioning, misalignment may occur between the FPC and the gold finger area of ​​the glass panel. At this time, the FPC must be cleaned up to recycle the glass panel and reduce scrap costs.

[0004] However, after the FPC is bonded and cured by the ACF glue, the tension between the two is relatively large. When the FPC is forcibly torn off and cleaned, FPC debris may remain in the binding area, or the glass panel may be broken and scrapped. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cleaning device for repairing a misaligned FPC, which at least partially solves the above problem.

[0006] The technical solution adopted by the present invention is as follows: A cleaning device for repairing a misaligned FPC proposed by the present invention comprises a chassis, and a vacuum carrier which can move up and down is provided above the chassis.

[0007] Furthermore, in order to fix the glass panel at a set working position, a positioning strip is provided on the edge of the vacuum stage.

[0008] Furthermore, the chassis is provided with lifting columns in array, a lifting platform is slidably provided on the lifting columns, a first lifting cylinder is connected between the lifting platform and the chassis, and the vacuum platform is rotatably provided on the lifting platform.

[0009] Furthermore, a rotating motor is provided on the lower wall of the lifting platform, and an output shaft of the rotating motor is provided at the center of the lower wall of the vacuum carrier.

[0010] Furthermore, hanging plates are symmetrically slidably provided on both sides of the upper wall of the chassis, and the hanging plates on both sides are connected and fixed by reinforcing plates. A positioning hole is provided at the upper end of the hanging plate, and an arc groove is also provided on the hanging plate. The arc groove is located at the lower end of the positioning hole, and the opening direction of the arc groove is away from the vacuum carrier. The lower end of the arc groove is connected to a vertical groove, and the center of the positioning hole and the center of the vertical groove are in the same vertical plane.

[0011] Furthermore, a path cylinder is hinged in the positioning hole on the upper end of the hanging plate, an upper heating head is provided on the telescopic rod of the path cylinder, and the end of the upper heating head slides in a slot hole composed of an arc slot and a vertical slot.

[0012] Furthermore, a lower heating head is provided at the lower end of the upper heating head, and the lower heating head slides on the upper wall of the chassis through a support rod.

[0013] Furthermore, a sliding platform is provided on one side of the chassis away from the hanging plate, a positioning cylinder is horizontally placed on the chassis, the telescopic end of the positioning cylinder is fixed on the sliding platform, an L-shaped positioning plate is provided above the sliding platform, and a plurality of groups of anti-fragmentation pressure heads that can move up and down are provided above the L-shaped positioning plate.

[0014] Furthermore, in order to adjust the height and horizontal position of the anti-fragmentation pressure head and stagger the anti-fragmentation pressure head with the FPC, the outer wall of the L-shaped positioning plate is slidably provided with multiple groups of sliding blocks, a bent plate is penetrated through the middle of the sliding block, the anti-fragmentation pressure head is arranged on the bent plate, a second lifting cylinder is fixed on the slide, a synchronous plate is provided on the telescopic rod of the second lifting cylinder, and the lower end of the bent plate is slidably arranged on the synchronous plate.

[0015] The beneficial effects achieved by the present invention are as follows: 1. The upper heating head and the lower heating head soften the ACF glue in the bonding area of ​​the glass panel from the upper and lower directions to reduce the bonding force between the FPC and the glass panel, and prevent the glass from being damaged by excessive tension when the FPC is subsequently removed and cleaned. The upper heating head, under the action of the arc groove and the vertical groove, can gradually move downward from the inside to the outside of the glass panel and press the FPC to prevent the FPC from bending and causing folding; 2. The L-shaped positioning plate can force the bent FPC to stand upright so that it can be clamped and peeled off later. The anti-breakage plate pressure head on the bent plate can flatten the glass panel when tearing off the FPC, preventing the glass panel from arching upward under the action of large pulling force, thereby preventing the glass from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2The structure of the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a structural schematic diagram of the lower end of the vacuum stage; Figure 4 It is the position relationship diagram of the upper heating head and the lower heating head in the hanging board; Figure 5 This is a fracture view of the hanging board; Figure 6 It is the position relationship diagram of each component on the slide; Figure 7 This is a cross-sectional view of the FPC when it is heated; Figure 8 This is a cross-sectional view of the FPC before being peeled off.

[0017] Among them, 1. chassis, 2. vacuum carrier, 3. hanging plate, 4. path cylinder, 5. upper heating head, 6. lower heating head, 7. first lifting cylinder, 8. lifting platform, 9. rotating motor, 10. lifting column, 11. positioning bar, 12. reinforcement plate, 13. positioning hole, 14. arc groove, 15. vertical groove, 16. slide, 17. second lifting cylinder, 18. synchronization plate, 19. slider, 20. bent plate, 21. anti-fragmentation pressure head, 22. L-shaped positioning plate, 23. positioning cylinder.

[0018] exist Figure 7 and Figure 8 In the figure, a represents a glass panel.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1and Figure 2 As shown, a cleaning device for repairing a misaligned FPC proposed in an embodiment of the present invention comprises a chassis 1, a vacuum platform 2 which can move up and down is provided above the chassis 1, an abnormal glass panel a which has been bound with the FPC is placed on the vacuum platform 2, the vacuum platform 2 can absorb the glass panel a by negative pressure to prevent the glass panel a from slipping during operation, the vacuum platform 2 can move up and down, when the vacuum platform 2 is in a high position, the glass panel a is in a standby state, at this time the glass panel a can be rotated to different positions under the action of the vacuum platform 2 without interfering with other equipment, and when the vacuum platform 2 is in a low position, the glass panel a is in an operating position.

[0023] In order to fix the glass panel a at the set working position, a positioning strip 11 is provided at the edge of the vacuum stage 2. When the glass panel a is placed on the vacuum stage 2, the vacuum stage 2 is not connected to negative pressure, and the glass panel a can move freely. When the side of the glass panel a is fitted with the positioning strip 11 and the negative pressure is connected, the position of the glass panel a on the vacuum stage 2 can be positioned.

[0024] like Figure 3 As shown, a lifting column 10 is arrayed on the chassis 1, and a lifting platform 8 is slidably provided on the lifting column 10. A first lifting cylinder 7 is connected between the lifting platform 8 and the chassis 1, and the vacuum platform 2 is rotatably provided on the lifting platform 8. When the first lifting cylinder 7 is extended or retracted, the lifting platform 8 can move up and down, thereby driving the vacuum platform 2 on the lifting platform 8 to move up and down, so as to adjust the position of the glass panel a on the vacuum platform 2, and finally make the glass panel a be in a standby position or an operating position.

[0025] A rotating motor 9 is provided on the lower wall of the lifting platform 8, and the output shaft of the rotating motor 9 is provided at the center of the lower wall of the vacuum carrier 2. When the rotating motor 9 is started, it will drive the vacuum carrier 2 to rotate, thereby adjusting the direction of the glass panel a on the vacuum carrier 2, so that the glass panel a bound to one side of the FPC faces the set working direction, such as heating the upper heating head 5 and the lower heating head 6 of the ACF glue, or tearing off the L-shaped positioning plate 22 working point for cleaning the FPC.

[0026] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, hanging plates 3 are symmetrically slidably provided on both sides of the upper wall of the chassis 1, and the hanging plates 3 on both sides are connected and fixed by a reinforcing plate 12. A positioning hole 13 is provided at the upper end of the hanging plate 3, and an arc groove 14 is also provided on the hanging plate 3. The arc groove 14 is located at the lower end of the positioning hole 13, and the opening direction of the arc groove 14 is away from the vacuum carrier 2. The lower end of the arc groove 14 is connected to a vertical groove 15, and the center of the positioning hole 13 and the center of the vertical groove 15 are in the same vertical plane.

[0027] A path cylinder 4 is hinged in the positioning hole 13 at the upper end of the hanging plate 3, and an upper heating head 5 is arranged on the telescopic rod of the path cylinder 4. The upper heating head 5 is heated by a heating wire. A temperature sensor is also arranged on the upper heating head 5. The temperature sensor can accurately control the temperature of the upper heating head 5. The end of the upper heating head 5 slides in the slot hole composed of the arc groove 14 and the vertical groove 15. When the path cylinder 4 is extended, the path cylinder 4 drives the upper heating head 5 to move along the path of the arc groove 14 and the vertical groove 15, that is, the upper heating head 5 can move from the inner side of the glass panel a to the outer side where the FPC is located. If the FPC is warped, such as Figure 7 As shown, the upper heating head 5 can squeeze and flatten the warped FPC outward until the upper heating head 5 moves to the vertical groove 15, and the upper heating head 5 moves vertically downward to directly press the FPC to prevent the FPC from being pressed down and folded due to bending, and to avoid the appearance of stacked FPC under the upper heating head 5, ensuring that each time the ACF glue is heated, the FPC under the upper heating head 5 always remains in a single layer, thereby ensuring the stability of the ACF glue softening process.

[0028] A lower heating head 6 is provided at the lower end of the upper heating head 5. The lower heating head 6 slides on the upper wall of the chassis 1 through a support rod. The lower heating head 6 is also heated by a heating wire and is also connected to a temperature sensor. The temperature sensor can accurately control the temperature of the lower heating head 6. The upper heating head 5 and the lower heating head 6 heat the ACF glue from the upper and lower directions of the glass panel a to soften the ACF glue, reduce the bonding force between the FPC and the glass panel a, and avoid damaging the glass panel a due to excessive tension when cleaning and tearing off the FPC, resulting in bending or breaking of the glass panel a. During the heating process, the position of the upper heating head 5 can be adjusted by sliding the hanging plate 3 according to the size of the glass panel a, so that the binding area of ​​the upper heating head 5 coincides with that of the FPC. The lower heating head 6 is also adjusted in the same way, and the vacuum stage 2 also descends to the operating point. When the heating is completed, the vacuum stage 2 rises to a high position under the action of the first lifting cylinder 7 so that it can be rotated to the next operating point later.

[0029] When the ACF glue is softened, you can choose to directly tear off and clean the FPC. However, due to the differences between ACF glue and FPC and other materials, there is still a possibility of fragmentation when the FPC is directly torn off. In order to further reduce the fragmentation rate, such as Figure 2 and Figure 6 As shown, a slide 16 is provided on one side of the chassis 1 away from the hanging plate 3, a positioning cylinder 23 is horizontally placed on the chassis 1, and the telescopic end of the positioning cylinder 23 is fixed on the slide 16. An L-shaped positioning plate 22 is provided above the slide 16. The L-shaped positioning plate 22 can force the FPC to be adjusted to a vertical state, such as Figure 8As shown, it is convenient for the subsequent tensile testing machine or manual clamping of the FPC. A plurality of groups of anti-fragmentation pressing heads 21 that can move up and down are arranged above the L-shaped positioning plate 22. When the anti-fragmentation pressing heads 21 move downward, the glass panel a area that is not bound with the FPC can be pressed and fixed. When the FPC is torn off upward, the anti-fragmentation pressing heads 21 can fix the glass panel a to prevent the glass panel a from arching upward, thereby reducing the fragmentation rate.

[0030] In order to adjust the height and horizontal position of the anti-fragmentation head 21 so that the anti-fragmentation head 21 is staggered with the FPC, the outer side wall of the L-shaped positioning plate 22 is slidably provided with multiple groups of sliders 19, and a bent plate 20 is penetrated through the middle of the slider 19. The anti-fragmentation head 21 is arranged on the bent plate 20. When the slider 19 is moved left and right, the horizontal position of the anti-fragmentation head 21 can be adjusted. A second lifting cylinder 17 is fixed on the slide 16, and a synchronous plate 18 is provided on the telescopic rod of the second lifting cylinder 17. The lower end of the bent plate 20 is slidably arranged on the synchronous plate 18. When the second lifting cylinder 17 is extended and retracted, the height of the bent plate 20 on the synchronous plate 18 can be adjusted, thereby adjusting the height of the anti-fragmentation head 21. When the glass panel a rotates to the side of the anti-fragmentation head 21 and the vacuum carrier 2 moves down to the operating point, the anti-fragmentation head 21 moves downward and presses and fixes the glass panel a. Later, you can choose to manually tear off the FPC or install the pull claw to tear off and clean the FPC.

[0031] During specific use, the positions of the hanging plate 3, the lower heating head 6 and the anti-fragmentation head 21 are adjusted respectively according to the size of the glass panel a and the binding position of the FPC and the glass panel a. The adjusted upper heating head 5 and the lower heating head 6 can be pressed on the binding area of ​​the FPC, and the anti-fragmentation head 21 can be pressed in the gap offset from the FPC.

[0032] Then, the glass panel a is placed on the vacuum platform 2 so that the side of the glass panel a fits with the positioning strip 11, and the binding area of ​​the FPC is fixed relative to the vacuum platform 2. Then, negative pressure is connected to prevent the glass panel a from sliding. Then, the first lifting cylinder 7 is retracted, and the first lifting cylinder 7 drives the lifting platform 8 to move downward, and the vacuum platform 2 is lowered to the working point for heating the ACF glue.

[0033] When the vacuum carrier 2 descends, the lower wall of the glass panel a directly fits against the lower heating head 6. At this time, the driving path cylinder 4 extends out, and the path cylinder 4 drives the upper heating head 5 to move along the path of the arc groove 14 and the vertical groove 15 from top to bottom and from the inner side of the glass panel a to the outer side of the FPC, and finally presses the FPC. During the whole process, the upper heating head 5 can unfold the warped or curled FPC, avoid folding under the upper heating head 5 of the FPC, prevent the multi-layer FPC from affecting heat transfer, ensure the softening effect of the ACF glue under the current set temperature parameters, and improve the stability of the support.

[0034] After the heating time is reached, the path cylinder 4 retracts, driving the upper heating head 5 to return to the initial position upward, and the vacuum stage 2 moves upward under the action of the first lifting cylinder 7. The rotary motor 9 is started to rotate the vacuum stage 2 180 degrees. The first lifting cylinder 7 contracts here, driving the vacuum stage 2 to move down to the working point.

[0035] Then the positioning cylinder 23 is started, and the positioning cylinder 23 retracts, driving the slide 16 to approach the vacuum carrier 2, so that the L-shaped positioning plate 22 fits with the FPC, and the FPC is forced to stand up. Then the second lifting cylinder 17 retracts and drives the bending plate 20 on the synchronization plate 18 to move downward. The bending plate 20 drives the anti-fragmentation head 21 to move downward. The anti-fragmentation head 21 will press on the glass panel a to fix the glass panel a to prevent arching or fragmentation when tearing off and cleaning the FPC. At this time, you can choose to clamp the FPC with your hands or claws and clean it away.

[0036] Then, the anti-fragmentation pressing head 21 is lifted upward by the second lifting cylinder 17, and the slide table 16 is returned to the initial position, the glass panel a is removed, and the ACF glue residue on the glass panel a is wiped off with acetone.

[0037] Repeat the above steps for cleaning the FPC on the next glass panel a.

[0038] 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.

[0039] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A cleaning device for repairing misaligned FPC, comprising a vacuum stage (2) disposed above a chassis (1) and capable of moving up and down, characterized in that: Also includes: A hanging plate (3) slides symmetrically on both sides of the upper wall of the chassis (1); an arc groove (14) is provided on the hanging plate (3); the opening direction of the arc groove (14) is away from the vacuum carrier (2); the lower end of the arc groove (14) is connected to a vertical groove (15); the upper end of the hanging plate (3) is hinged with a path cylinder (4); the telescopic rod of the path cylinder (4) is provided with an upper heating head (5); the end of the upper heating head (5) slides in a slot hole formed by the arc groove (14) and the vertical groove (15); the lower end of the upper heating head (5) is provided with a lower heating head (6); the lower heating head (6) slides on the upper wall of the chassis (1) through a support rod.

2. The cleaning device for repairing misaligned FPC according to claim 1, characterized in that: The chassis (1) is provided with lifting columns (10) in an array, a lifting platform (8) is slidably provided on the lifting columns (10), and a first lifting cylinder (7) is connected between the lifting platform (8) and the chassis (1).

3. The cleaning device for repairing misaligned FPC according to claim 2, characterized in that: The vacuum carrier (2) is rotatably mounted on a lifting platform (8), a rotating motor (9) is disposed on the lower wall of the lifting platform (8), and an output shaft of the rotating motor (9) is disposed at the center of the lower wall of the vacuum carrier (2).

4. The cleaning device for repairing misaligned FPC according to claim 1, characterized in that: A reinforcing plate (12) is connected between the hanging plates (3) on both sides, a positioning hole (13) is provided at the upper end of the hanging plate (3), the path cylinder (4) is hinged in the positioning hole (13), and the center of the positioning hole (13) and the center of the vertical slot (15) are in the same vertical plane.

5. The cleaning device for repairing misaligned FPC according to claim 1, characterized in that: A positioning strip (11) is provided on the edge of the vacuum carrier (2).

6. The cleaning device for repairing misaligned FPC according to claim 1, characterized in that: A slide table (16) is slidably provided on one side of the chassis (1) away from the hanging plate (3), a positioning cylinder (23) is horizontally placed on the chassis (1), a telescopic end of the positioning cylinder (23) is fixed on the slide table (16), and an L-shaped positioning plate (22) is provided above the slide table (16).

7. The cleaning device for repairing misaligned FPC according to claim 6, characterized in that: A plurality of groups of anti-fragmentation pressure heads (21) that can move up and down are provided above the L-shaped positioning plate (22).

8. The cleaning device for repairing misaligned FPC according to claim 7, characterized in that: A plurality of groups of slide blocks (19) are slidably provided on the outer side wall of the L-shaped positioning plate (22), a bent plate (20) is provided through the middle of the slide block (19), and the anti-fragmentation pressing head (21) is provided on the bent plate (20).

9. The cleaning device for repairing misaligned FPC according to claim 8, characterized in that: A second lifting cylinder (17) is fixed on the slide (16), a synchronous plate (18) is provided on the telescopic rod of the second lifting cylinder (17), and the lower end of the bent plate (20) is slidably disposed on the synchronous plate (18).

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