A light guide plate exterior flatness correction device

Abstract

The utility model discloses a kind of rectification equipment of light guide plate external flatness, it is related to the technical field of keeping light guide plate correction, the rectification equipment of light guide plate external flatness includes rack base, and the one end of rack base is movably connected with anti-deviation placing rack, and the top of anti-deviation placing rack is correspondingly provided with correction pressing plate;Anti-deviation placing rack includes placing plate, and the bottom of placing plate is integrally provided with connecting sliding block, and rack base is provided with the limiting sliding slot corresponding with connecting sliding block on, and connecting sliding block and limiting sliding slot are slidingly cooperated;One end of connecting sliding block is fixedly connected by moving cylinder end thread;Moving cylinder can drive placing plate to slide above rack base by connecting sliding block, so that placing plate is removed from below high-strength pressing plate, and then increase the working space when preventing light guide plate to be corrected, prevent the light guide plate to be corrected from bumping when placing, increase the protection when feeding the light guide plate to be corrected.

Description

Technical Field

[0001] This utility model specifically relates to the technical field of light guide plate correction, and more specifically to a device for correcting the external flatness of a light guide plate. Background Technology

[0002] A light guide plate is a core optical component that transforms a point light source or line light source into a uniform surface light source through optical design. Its technological development is closely related to industrial needs (such as display and lighting) and the progress of optics and materials science. The "correction" of a light guide plate is essentially to eliminate deviations that occur during production and use by adjusting its shape, size or optical properties, and to ensure that its optical performance (such as brightness uniformity and luminous efficacy) and assembly compatibility meet design requirements.

[0003] However, Chinese Utility Model Publication No. CN201110242812.3 discloses a method and apparatus for correcting the warping of a light guide plate. The method involves placing the warped light guide plate between an upper pressure plate and a lower pressure plate; using a hydraulic cylinder that abuts against the upper pressure plate to press the upper pressure plate, the warped light guide plate, and the lower pressure plate together; and winding a coil around the light guide plate, with a gap between the coil and the light guide plate. When the coil is energized, it generates an electromagnetic wave that passes through the gap and heats the warped light guide plate. The hydraulic cylinder maintains the pressure of the upper pressure plate, the warped light guide plate, and the lower pressure plate while the electromagnetic wave heats the warped light guide plate, thereby correcting the warped light guide plate.

[0004] However, during the implementation of the above scheme, due to the small gap between the pressure plate and the placement plate, when the robot is used for material handling, the light guide plate is prone to collision with the support column, which will cause further damage to the light guide plate. Moreover, due to the insufficient gap to adjust the posture of the light guide plate after placement, the light guide plate is prone to shifting at the moment of being squeezed, which will reduce the correction quality of the light guide plate. Utility Model Content

[0005] The purpose of this invention is to provide a device for correcting the external flatness of a light guide plate. Through the sliding cooperation between the connecting slider and the limiting groove, a moving cylinder can move the placement plate from below the correcting pressure plate, thereby increasing the space during loading and preventing the light guide plate from bumping or knocking during loading. Furthermore, the sliding positioning posts arranged in a rectangular array on the placement plate can limit the movement of the light guide plate, preventing it from shifting during the correction process. This solves the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for correcting the flatness of the outer surface of a light guide plate includes a frame base. One end of one side of the frame base is movably connected to an anti-offset placement frame. The anti-offset placement frame includes a placement plate. The bottom of the placement plate is integrally provided with a connecting slider. The frame base is provided with a limiting groove corresponding to the connecting slider, and the connecting slider slides in cooperation with the limiting groove.

[0008] One end of the connecting slider is fixedly connected to a movable cylinder, which is located below the limiting slide groove. The end of the movable cylinder away from the connecting slider is fixedly connected to the frame base. The placement plate has mounting grooves arranged in a rectangular array above it. Each mounting groove is movably connected to a sliding positioning post, and a compression spring is placed in the mounting groove. The end of the compression spring contacts the sliding positioning post. Each sliding positioning post has a positioning slot corresponding to the compression spring below it, and the end of the compression spring engages with the inner side of the positioning slot.

[0009] The corrective pressure plate includes a high-strength pressure plate located above the placement plate, and the high-strength pressure plate has through-holes arranged in a rectangular array, wherein a limit support column passes through the through-hole; the bottom of the limit support column is fixedly connected to the frame base, and the other end is fixedly connected to a top mounting plate;

[0010] As a further technical solution of this utility model, the connecting slider and the limiting groove cooperate through translational sliding;

[0011] As a further technical solution of this utility model, one end of the connecting slider is fixedly connected by the threaded end of the moving cylinder.

[0012] As a further technical solution of this utility model, a limiting support column passes through the through sliding hole, and the through sliding hole and the limiting support column slide together.

[0013] As a further technical solution of this utility model, one end of the correcting cylinder passes through the top mounting plate and is fixedly connected to the high-strength pressure plate by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the movable cylinder can drive the placement plate to slide above the machine frame base through the connecting slider, thereby moving the placement plate from under the high-strength pressure plate, thereby increasing the working space when the light guide plate to be corrected is placed, preventing the light guide plate to be corrected from being bumped during placement, and thus increasing the protection when the light guide plate to be corrected is loaded.

[0016] 2. After the to-be-corrected light guide plate is placed above the placement plate, the sliding positioning columns located below the to-be-corrected light guide plate will move downward along the inner side of the installation groove under the influence of the gravity of the to-be-corrected light guide plate. At this time, the sliding positioning columns around the to-be-corrected light guide plate do not slide downward, thereby positioning the position of the to-be-corrected light guide plate, preventing the to-be-corrected light guide plate from shifting under force during the correction process, and further improving the correction effect on the to-be-corrected light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model in use state.

[0018] Figure 2 in the utility model Figure 1 view from another angle.

[0019] Figure 3 in the utility model Figure 2 partial enlarged schematic diagram.

[0020] Figure 4 in the utility model Figure 1 front view.

[0021] Figure 5 is a schematic structural diagram of the anti-offset placement rack and the correction pressing plate in the utility model.

[0022] Figure 6 is a three-dimensional structural diagram of the placement plate in the utility model.

[0023] Figure 7 in the utility model Figure 6 bottom structural diagram.

[0024] Figure 8 is a schematic structural diagram of the sliding positioning column and the compression spring in the utility model.

[0025] Figure 9 in the utility model Figure 8 sectional view taken along line B-B.

[0026] Frame base - 1, Manipulator - 2, To-be-corrected light guide plate - 3, Suction cup terminal - 4, Limit support column - 5, Top mounting plate - 6, Correction cylinder - 7, Anti-offset placement rack - 8, Placement plate - 81, Sliding positioning column - 82, Installation groove - 83, Connecting slider - 84, Compression spring - 85, Positioning card slot - 86, Correction pressing plate - 9, High-strength pressing plate - 91, Through hole - 92, Limit sliding groove - 10, Moving cylinder - 11. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-9 This utility model embodiment provides a device for correcting the external flatness of a light guide plate, including a frame base 1, an anti-offset placement frame 8 movably connected to one end of the frame base 1, and a correction pressure plate 9 correspondingly arranged above the anti-offset placement frame 8.

[0029] The anti-offset placement frame 8 includes a placement plate 81. A connecting slider 84 is integrally formed at the bottom of the placement plate 81. A limiting groove 10 corresponding to the connecting slider 84 is formed on the frame base 1, and the connecting slider 84 slides in conjunction with the limiting groove 10. A movable cylinder 11 is fixedly connected to one end of the connecting slider 84. The movable cylinder 11 is located below the limiting groove 10, and the end of the movable cylinder 11 away from the connecting slider 84 is fixedly connected to the frame base 1.

[0030] The mounting plate 81 has mounting grooves 83 arranged in a rectangular array on its upper surface. Each mounting groove 83 is movably connected to a sliding positioning post 82, and a compression spring 85 is also placed in the mounting groove 83. The end of the compression spring 85 is in contact with the sliding positioning post 82.

[0031] Each of the sliding positioning posts 82 has a positioning slot 86 corresponding to the compression spring 85 below it, and the end of the compression spring 86 is engaged with the inner side of the positioning slot 86.

[0032] The corrective pressure plate 9 includes a high-strength pressure plate 91 located above the placement plate 81, and the high-strength pressure plate 91 has through sliding holes 92 arranged in a rectangular array, wherein a limit support column 5 passes through the through sliding hole 92.

[0033] The bottom of the limiting support column 5 is fixedly connected to the frame base 1, and the other end is fixedly connected to the top mounting plate 6;

[0034] Among them, a straightening cylinder 7 is fixedly connected above the top mounting plate 6, and one end of the straightening cylinder 7 passes through the top mounting plate 6 and is fixedly connected to the high-strength pressure plate 91.

[0035] The frame base 1 is fixedly connected to a robotic arm 2 at one end away from the anti-displacement placement frame 8, and a suction cup terminal 4 is fixedly connected to the other end of the robotic arm 2. The light guide plate 3 to be corrected is adsorbed on the side of the suction cup terminal 4.

[0036] In this embodiment, a movable cylinder 11 is fixedly connected to one end of the connecting slider 84, and the movable cylinder 11 is located below the limiting slide groove 10, and the end of the movable cylinder 11 away from the connecting slider 84 is fixedly connected to the frame base 1.

[0037] The mounting plate 81 has mounting grooves 83 arranged in a rectangular array on its upper surface. Each mounting groove 83 is movably connected to a sliding positioning post 82, and a compression spring 85 is also placed in the mounting groove 83. The end of the compression spring 85 is in contact with the sliding positioning post 82.

[0038] Each of the sliding positioning posts 82 has a positioning slot 86 corresponding to the compression spring 85 below it, and the end of the compression spring 86 is engaged with the inner side of the positioning slot 86.

[0039] By adopting the above technical solution, after the light guide plate is placed above the placement plate 81, the sliding positioning post 82 covered by the light guide plate will retract into the installation groove 83. At this time, the sliding positioning post 82 around the light guide plate can position the light guide plate to prevent the light guide plate from shifting after acceptance.

[0040] In this embodiment, the corrective pressure plate 9 includes a high-strength pressure plate 91 located above the placement plate 81, and the high-strength pressure plate 91 has through sliding holes 92 arranged in a rectangular array, wherein a limit support column 5 passes through the through sliding hole 92.

[0041] The bottom of the limiting support column 5 is fixedly connected to the frame base 1, and the other end is fixedly connected to the top mounting plate 6;

[0042] Among them, a straightening cylinder 7 is fixedly connected above the top mounting plate 6, and one end of the straightening cylinder 7 passes through the top mounting plate 6 and is fixedly connected to the high-strength pressure plate 91.

[0043] By adopting the above technical solution, the correction cylinder 7 pushes the high-strength pressure plate 91 to move downward. At this time, the through sliding hole 92 on the high-strength pressure plate 91 slides and cooperates with the limiting support column 5, so that the high-strength pressure plate 91 moves downward smoothly until the high-strength pressure plate 91 squeezes the light guide plate on the placement plate 81, and corrects the light guide plate through pressure.

[0044] The working principle of this utility model is as follows: When in use, the suction cup terminal 4 connected to the end of the robotic arm 2 first picks up the light guide plate 3 to be corrected, and places the light guide plate 3 to be corrected on the anti-deviation placement frame 8. The moving cylinder 11 can drive the placement plate 81 to move out from under the correcting pressure plate 9, thereby increasing the space during loading and preventing the light guide plate from being bumped during loading. The sliding positioning columns 82 arranged in a rectangular array on the placement plate 81 can limit the light guide plate. And through the movement of the moving cylinder 11 to drive the connecting slider 84, the anti-deviation placement frame 8 moves to the bottom of the correcting pressure plate 9. The correcting cylinder 7 pushes the correcting pressure plate 9 to slide on the limiting support column 5 on the top mounting plate 6 to perform pressure correction on the light guide plate of the anti-deviation placement frame 8.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for correcting the flatness of the outer surface of a light guide plate, characterized in that: Includes a rack base (1), one end of which is movably connected to an anti-offset placement frame (8), and a corresponding correction pressure plate (9) is provided above the anti-offset placement frame (8); The anti-offset placement rack (8) includes a placement plate (81), the bottom of which is integrally provided with a connecting slider (84), and the frame base (1) is provided with a limiting groove (10) corresponding to the connecting slider (84), and the connecting slider (84) and the limiting groove (10) slide together.

2. The device for correcting the external flatness of the light guide plate according to claim 1, characterized in that: One end of the connecting slider (84) is fixedly connected to a movable cylinder (11), and the movable cylinder (11) is located below the limiting slide groove (10), and the end of the movable cylinder (11) away from the connecting slider (84) is fixedly connected to the frame base (1).

3. The device for correcting the external flatness of the light guide plate according to claim 1, characterized in that: The mounting plate (81) has mounting grooves (83) arranged in a rectangular array above it. Each mounting groove (83) is movably connected to a sliding positioning post (82), and a compression spring (85) is placed in the mounting groove (83). The end of the compression spring (85) is in contact with the sliding positioning post (82).

4. The device for correcting the external flatness of the light guide plate according to claim 3, characterized in that: Each of the aforementioned sliding positioning posts (82) has a positioning slot (86) corresponding to the compression spring (85) below it, and the end of the compression spring (85) is engaged with the inner side of the positioning slot (86).

5. The device for correcting the external flatness of the light guide plate according to claim 1, characterized in that: The aforementioned straightening pressure plate (9) includes a high-strength pressure plate (91) located above the placement plate (81), and the high-strength pressure plate (91) has through sliding holes (92) arranged in a rectangular array, with limit support columns (5) passing through the through sliding holes (92).

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