A FOG liquid crystal screen inspection device

Abstract

The application discloses a FOG liquid crystal screen inspection device, and belongs to the technical field of liquid crystal screen inspection equipment. The FOG liquid crystal screen inspection device comprises a workbench, an inspection assembly and a labeling assembly. The labeling assembly comprises a sticking table, a label tearing table, a mounting seat, a label tearing mechanism, a plurality of label paper assemblies and a plurality of pressing mechanisms. The label paper assembly comprises a first rotating drum, a second rotating drum, a first release paper and a plurality of sticking pieces. The sticking piece comprises a second release paper and a sticking paper. The pressing mechanism comprises a pressing plate, a connecting piece, a connecting frame and a lead screw. The label tearing mechanism comprises a magnet, a rotating piece, a first electromagnet and a second electromagnet. The FOG liquid crystal screen is automatically transmitted and inspected through the inspection assembly. After the result is obtained, the pressing mechanism is moved to generate a gap between the second release paper and the first release paper. The first electromagnet and the second electromagnet are magnetically clamped through on-off electricity, the sticking paper is separated and pasted on the unqualified FOG liquid crystal screen, the automatic pasting of the identification of the unqualified product is realized, and the subsequent processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of liquid crystal screen inspection equipment, and provides a FOG liquid crystal screen inspection device. BACKGROUND

[0002] In the generation and processing of FOG liquid crystal screens, defects such as missing silver paste, silver paste position point error, contact between silver paste and upper piece protective film, corner collapse, broken pieces, little glue, air bubbles, overflow glue, cracks, POL lifting, surface glue air bubbles, and missing one-line glue may occur, and need to be inspected. In the traditional inspection, the operating personnel wear rubber gloves to take and perform visual inspection by the human eye. After artificial inspection, the qualified products are placed in a turntable, and the unqualified products are placed in a disc with a bad mark. The artificial inspection standard is not the same, the personnel are prone to fatigue, and the detection efficiency is low, which cannot meet the production demand.

[0003] The prior art CN204215118U discloses a liquid crystal screen appearance detection device, which comprises two detection units of the same structure located on the upper and lower sides of the liquid crystal screen to be detected and a conveying unit for moving the liquid crystal screen. The detection unit comprises a light source and a camera. The camera on the upper and lower sides automatically detects the defects on the two sides of the liquid crystal screen, and the detection speed is fast.

[0004] However, the above prior art only realizes automatic inspection without manual visual inspection, and cannot automatically paste the mark on the unqualified product after inspection, which affects the subsequent transmission and corresponding processing, and the efficiency is still low. SUMMARY

[0005] Therefore, the present application aims to provide a FOG liquid crystal screen inspection device to solve the problem that the prior art only realizes automatic inspection without manual visual inspection, cannot automatically paste the mark on the unqualified product after inspection, affects the subsequent transmission and corresponding processing, and the efficiency is still low.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The present application provides a FOG liquid crystal screen inspection device, which comprises a workbench, an inspection assembly, and a labeling assembly. The inspection assembly is located on the workbench. The labeling assembly comprises a pasting table, a label tearing table, a mounting seat, a tearing and pasting mechanism, a plurality of label paper assemblies, and a plurality of pressing mechanisms. The pasting table and the label tearing table are fixedly connected with the workbench and located on one side of the inspection assembly. The mounting seat is fixedly connected with the label tearing table. The mounting seat has a plurality of cavities. Each label paper assembly corresponds to each cavity. Each pressing mechanism corresponds to each label paper assembly. The tearing and pasting mechanism is located away from the inspection assembly.

[0008] The signing paper assembly comprises a first rotating drum, a second rotating drum, a first release paper and a plurality of adhesive pieces, the first rotating drum is rotationally connected to the adhesive table, the second rotating drum is rotationally connected to the mounting seat and located in the cavity, the first release paper is wound on the first rotating drum, the first release paper and the plurality of adhesive pieces are wound on the second rotating drum, the plurality of adhesive pieces are evenly distributed on the first release paper, and the adhesive piece comprises a second release paper and an adhesive paper.

[0009] The pressing mechanism comprises a pressing plate, a connecting piece, a connecting frame and a lead screw, the pressing plate is located on the side facing the second release paper, the connecting piece is fixedly connected with the pressing plate and located above the pressing plate, the connecting piece is slidingly connected with the connecting frame, the lead screw penetrates through the connecting piece and is located in the connecting frame, the connecting frame is slidingly connected with the mounting seat, and the pressing plate has a groove.

[0010] The tearing and pasting mechanism comprises a magnet, a rotating piece, a first electromagnet and a second electromagnet, the magnet is located in the groove, the first electromagnet is located on the side facing the magnet, the rotating piece is fixedly connected with the first electromagnet, and the second electromagnet is located on the adhesive table.

[0011] Further, the pressing plate has a curved surface, the curved surface is located on the side facing the second release paper, and the groove is located in the curved surface.

[0012] Further, the tearing and pasting mechanism further comprises a horizontal fixing seat, a vertical fixing seat, a sliding block, a sliding rod and a connecting seat, the horizontal fixing seat is fixedly connected with the workbench and located on the side, away from the inspection assembly, of the adhesive table and the signature tearing table, the vertical fixing seat is slidingly connected with the horizontal fixing seat through the sliding block, the sliding rod is slidingly connected with the vertical fixing seat, the connecting seat is slidingly connected with the sliding rod, and the rotating piece is rotationally connected with the connecting seat.

[0013] Further, the inspection assembly comprises an inspection table, a visual camera, a feeding transmission belt mechanism and two transfer mechanisms, the inspection table is located on the side of the signature tearing table, the visual camera is fixedly connected to the inspection table, the feeding transmission belt mechanism is located on the side of the inspection table, and the two transfer mechanisms are located on the side of the inspection table.

[0014] Further, the transfer mechanism comprises a stand, a mechanical arm, a connecting rod, an arc-shaped ring and a moving rod, the stand is rotationally connected with the workbench, the mechanical arm is slidingly connected with the stand, the connecting rod is located in the mechanical arm and rotationally connected with the arc-shaped ring, and the moving rod is fixedly connected with the arc-shaped ring and rotationally slides with the connecting rod.

[0015] Further, the transfer mechanism further comprises a mounting frame, a rotating shaft and a first suction cup, the mounting frame is fixedly connected with the moving rod, the rotating shaft is rotatably connected with the mounting frame, and the first suction cup is fixedly connected with the rotating shaft.

[0016] Further, the inspection assembly further comprises two blank conveying belt mechanisms, and the two blank conveying belt mechanisms are located on one side of the transfer mechanism.

[0017] The FOG liquid crystal screen inspection device has the advantages that:

[0018] 1. The FOG liquid crystal screen inspection device of the present application realizes automatic pressing, falling and pasting of the adhesive paper on unqualified FOG liquid crystal screens through the tearing and pasting mechanism, the plurality of paper signing assemblies and the plurality of pressing mechanisms, realizes automatic pasting of unqualified products, is efficient and has low labor intensity.

[0019] 2. The FOG liquid crystal screen inspection device of the present application realizes automatic feeding and discharging for inspection and transportation through the inspection assembly, does not need manual participation, is more efficient in inspection, and is more accurate in inspection results.

[0020] Other advantages, objects and features of the present application will be set forth in part in the following specification, and in part will be apparent from the specification to those skilled in the art, or will be learned from the practice of the present application. The objects and other advantages of the present application can be realized and obtained by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, the preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, in which:

[0022] Figure 1 A structure schematic view of the FOG liquid crystal screen inspection device provided by the present application is shown in the figure.

[0023] Figure 2 A structure schematic view of the FOG liquid crystal screen inspection device provided by the present application is shown in the figure. Figure 1 An enlarged view of A in the figure.

[0024] Figure 3 A structure schematic view of the transfer mechanism provided by the present application is shown in the figure, except for the structure of the column and the mechanical arm.

[0025] Figure 4 A structure schematic view of the paper signing assembly and the pressing mechanism provided by the present application is shown in the figure.

[0026] Figure 5 A structure schematic view of the paper signing assembly and the pressing mechanism provided by the present application is shown in the figure.

[0027] Figure 6A front view of the signing paper assembly and the pressing mechanism provided by the present application;

[0028] Figure 7 For Figure 6 An enlarged view at B in the middle;

[0029] Figure 8 A structural schematic view of the signing assembly provided by the present application;

[0030] Figure 9 For Figure 8 An enlarged view at C in the middle;

[0031] Reference signs: 1 is a workbench, 2 is a pasting table, 3 is a signing table, 4 is a mounting seat, 5 is a first rotating drum, 6 is a second rotating drum, 7 is a first release paper, 8 is a second release paper, 9 is a pasting paper, 10 is a pressing plate, 11 is a connecting piece, 12 is a connecting frame, 13 is a screw rod, 14 is a groove, 15 is a magnet, 16 is a rotating piece, 17 is a first electromagnet, 18 is a second electromagnet, 19 is a camber surface, 20 is a horizontal fixing seat, 21 is a vertical fixing seat, 22 is a sliding block, 23 is a sliding rod, 24 is a connecting seat, 25 is an inspection table, 26 is a visual camera, 27 is a feeding transmission belt mechanism, 28 is a stand column, 29 is a mechanical arm, 30 is a connecting rod, 31 is an arc-shaped ring, 32 is a moving rod, 33 is a mounting frame, 34 is a rotating shaft, 35 is a first suction cup, 36 is a discharging transmission belt mechanism, 37 is a first placing groove, 38 is a second placing groove, 39 is a second suction cup, and 40 is a third release paper. DETAILED DESCRIPTION

[0032] The present application will be further described below in conjunction with specific embodiments. The accompanying drawings are only used for illustrative purposes, and the representations are only schematic diagrams, not physical drawings, and cannot be understood as a limitation on the present patent; in order to better illustrate the embodiments of the present application, some components of the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0033] As Figures 1-9As shown, the FOG liquid crystal screen inspection device provided by the present application comprises a workbench 1, an inspection assembly and a labeling assembly; the inspection assembly comprises an inspection table 25, a visual camera 26, a feeding transmission belt mechanism 27, two transfer mechanisms and two discharging transmission belt mechanisms 36, the transfer mechanism comprises a stand 28, a mechanical arm 29, a connecting rod 30, an arc-shaped ring 31, a moving rod 32 and a mounting frame 33, a rotating shaft 34 and a first suction disc 35; the labeling assembly comprises a sticking table 2, a label tearing table 3, a mounting seat 4, a tearing and sticking mechanism, a plurality of label paper assemblies and a plurality of pressing mechanisms, the label paper assembly comprises a first rotating drum 5, a second rotating drum 6, a first release paper 7 and a plurality of sticking pieces, the sticking piece comprises a second release paper 8 and a sticking paper 9, the pressing mechanism comprises a pressing plate 10, a connecting piece 11, a connecting frame 12 and a lead screw 13, and the tearing and sticking mechanism comprises a magnet 15, a rotating piece 16, a first electromagnet 17, a second electromagnet 18, a transverse fixing seat 20, a longitudinal fixing seat 21, a sliding block 22, a sliding rod 23 and a connecting seat 24. The foregoing scheme solves the problem that the foregoing prior art only realizes automatic inspection, manual visual inspection is not required, and after inspection, the unqualified products cannot be automatically labeled, affecting subsequent transmission and corresponding processing, and the efficiency is still low. It can be understood that the present scheme can also be applied to the appearance inspection and unqualified product labeling of other electronic screens.

[0034] In the embodiment, the FOG liquid crystal screen inspection device further comprises a plurality of motors connected with different structures to drive rotation thereof. The inspection assembly is located on the workbench 1 and is used for feeding, conveying, detecting and discharging the FOG liquid crystal screen to be inspected. Specifically, the inspection table 25 is located on one side of the label tearing table 3, the visual camera 26 is fixedly connected to the inspection table 25, the inspection table 25 is used for providing installation conditions for the visual camera 26, the visual camera 26 is based on image processing technology to obtain pictures of each direction of the FOG liquid crystal screen to be inspected and compare with preprocessed pictures to obtain results of whether there are defects and specific defects. The feeding transmission belt mechanism 27 is located on one side of the inspection table 25, the feeding transmission belt mechanism 27 is an existing conveying belt mechanism, such as comprising a belt body, a support structure, a transmission device and a tensioning device. The belt body is the main part of the conveying belt and is responsible for conveying the FOG liquid crystal screen to be inspected. The support structure is used for supporting the entire conveying belt system. The transmission device is mainly used for driving the movement of the conveying belt. The tensioning device is used for adjusting the tension of the conveying belt. Two transfer mechanisms are located on one side of the inspection table 25, and the two transfer mechanisms are used for realizing adsorption feeding, rotating detection and discharging of the FOG liquid crystal screen to be inspected. The stand 28 is rotationally connected with the workbench 1, a motor is arranged in the workbench 1, the output end of the motor is connected with the stand 28, and the stand 28 is driven to rotate. The mechanical arm 29 is slidably connected with the stand 28, a cylinder or a lead screw structure is arranged in the mechanical arm 29, and the mechanical arm 29 is slidably moved up and down along the stand 28. The connecting rod 30 is located in the mechanical arm 29, one end of the connecting rod 30 is connected with the output end of the motor, the other end of the connecting rod 30 is rotationally connected with the arc-shaped ring 31 and located in the arc-shaped ring 31, the moving rod 32 is fixedly connected with the arc-shaped ring 31 and slidably moves with the connecting rod 30 to realize horizontal movement of the moving rod 32. The mounting frame 33 is fixedly connected with the moving rod 32, the rotating shaft 34 is rotationally connected with the mounting frame 33, and the first suction cup 35 is fixedly connected with the rotating shaft 34.The installation frame 33 is provided with a motor, the output end of the motor is connected with the rotating shaft 34, drives the rotating shaft 34 to rotate, and then drives the first suction cup 35 fixed with the rotating shaft 34 to rotate, the first suction cup 35 is communicated with the vacuum generator through a hose, the hose is connected with the air inlet of the first suction cup 35, when the vacuum generator is started, the air inlet is ventilated, the air in the first suction cup 35 is sucked away, and a vacuum state with a pressure P2 is formed, the air pressure in the first suction cup 35 is lower than the atmospheric pressure P1 outside the first suction cup 35, that is, P2 < P1, the FOG liquid crystal screen is sucked up under the action of the external pressure, the higher the vacuum degree in the first suction cup 35, the tighter the first suction cup 35 and the FOG liquid crystal screen are attached, through the above structure, the first suction cup 35 can adsorb the FOG liquid crystal screen to change the direction of up, down, left, right, front and back and rotation, so that the visual camera 26 can collect images and accurately inspect, and the number of the transfer mechanism is two, when one of the transfer mechanisms adsorbs the FOG liquid crystal screen to be detected to detect in each direction, the other transfer mechanism continues to adsorb the FOG liquid crystal screen to be detected, so that the side adsorbed before is also subjected to appearance detection, the FOG liquid crystal screen is subjected to image collection in all directions, and the inspection accuracy is improved. Two said unloading conveying belt mechanisms 36 are located on one side of the transfer mechanism. Two said unloading conveying belt mechanisms 36 one transmit the FOG liquid crystal screen qualified for inspection to the next process, and the other transmits the unqualified FOG liquid crystal screen to the rework station for rework processing, two said unloading conveying belt mechanisms 36 are existing conveying belt mechanisms, such as including a belt body, a support structure, a transmission device, and a tensioning device, the belt body is the main part of the conveying belt, is responsible for conveying the FOG liquid crystal screen qualified or unqualified, the support structure is used for supporting the whole conveying belt system, the transmission device is mainly used for driving the movement of the conveying belt, and the tensioning device is used for adjusting the tension of the conveying belt.

[0035] The sticking table 2 and the tear label table 3 are fixedly connected with the workbench 1 and located on one side of the inspection assembly, the sticking table 2 provides a platform for sticking a non-conforming FOG liquid crystal screen with a defective product mark, and the tear label table 3 provides a platform for tearing off the sticking paper 9 with different defective conditions; the mounting seat 4 is fixedly connected with the tear label table 3, the mounting seat 4 and the tear label table 3 provide installation conditions for the label paper assembly, the mounting seat 4 has a plurality of cavities, each of the label paper assemblies corresponds to each of the cavities, and each of the pressing mechanisms corresponds to each of the label paper assemblies, the pressing mechanism assists in achieving the falling of the sticking paper 9; the tear and stick mechanism is located away from the inspection assembly, and the tear and stick mechanism realizes the falling of the sticking paper 9; specifically, the first rotating drum 5 is rotatably connected to the sticking table 2, the second rotating drum 6 is rotatably connected in the mounting seat 4 and located in the cavity, the first release paper 7 is wound on the first rotating drum 5, the first release paper 7 and a plurality of sticking pieces are wound on the first rotating drum 5 and the second rotating drum 6, and a plurality of the sticking pieces are uniformly distributed on the first release paper 7, the sticking piece includes the second release paper 8 and the sticking paper 9; the first rotating drum 5 and the second rotating drum 6 are connected with the motor through the center shaft, drive the first rotating drum 5 and the second rotating drum 6 to rotate, realize the movement of the first release paper 7 and the sticking piece on the second rotating drum 6 to the direction of the second rotating drum 6, the first release paper 7 and the second release paper 8 mainly play the role of isolating objects with adhesion, the side of the sticking paper 9 away from the first release paper 7 is printed with the font of the defective condition, and the sticking paper 9 on one of the second rotating drums 6 is printed with the same defective condition, such as the sticking paper 9 on one of the second rotating drums 6 is printed with corner collapse and broken pieces; the sticking paper 9 on another second rotating drum 6 is printed with bubbles, glue overflow, and cracks.

[0036] The pressing plate 10 is located on the side facing the second release paper 8, the connecting piece 11 is fixedly connected with the pressing plate 10 and located above the pressing plate 10, the connecting piece 11 is slidingly connected with the connecting frame 12, the lead screw 13 penetrates through the connecting piece 11 and is located in the connecting frame 12, and the connecting frame 12 is slidingly connected with the mounting seat 4; the lead screw 13 is connected with the output end of the motor, drives the lead screw 13 to rotate, and then drives the connecting piece 11 to slide along the lead screw 13, so as to drive the pressing plate 10 connected therewith to slide along the second release paper 8 to approach or move away from the second release paper 8, the mounting seat 4 is vertically arranged with the connecting frame 12, a pneumatic cylinder is arranged in the mounting seat 4, the output end of the pneumatic cylinder is connected with the connecting frame 12, the pneumatic cylinder drives the piston to perform linear reciprocating motion in the cylinder, and then the connecting frame 12 moves up and down, so as to drive the pressing plate 10 to move up and down. Wherein, the pressing plate 10 has a groove 14, the pressing plate 10 has a curved surface 19, the curved surface 19 faces the side of the second release paper 8, the curved surface 19 facilitates insertion between the second release paper 8 and the first release paper 7 when the pressing plate 10 slides to the second release paper 8, so that the second release paper 8 and the first release paper 7 have a gap, and the groove 14 is located in the curved surface 19. The tearing mechanism can move in the left-right, front-back and up-down directions on the workbench 1. Specifically, the transverse fixed seat 20 is fixedly connected with the workbench 1 and located on the side of the pasting table 2 and the signature tearing table 3 away from the inspection assembly, the longitudinal fixed seat 21 is slidingly connected with the transverse fixed seat 20 through the sliding block 22, the sliding mode can be that a lead screw structure or a pneumatic cylinder is arranged in the transverse fixed seat 20 to drive the sliding block 22 to slide in the transverse fixed seat 20, the longitudinal fixed seat 21 is fixedly connected with the sliding block 22, and then drives the longitudinal fixed seat 21 to slide along the transverse sliding seat; the sliding rod 23 is slidingly connected with the longitudinal fixed seat 21, a lead screw structure or a pneumatic cylinder is arranged in the longitudinal fixed seat 21 to drive the sliding rod 23 to slide in the longitudinal fixed seat 21; the connecting seat 24 is slidingly connected with the sliding rod 23, the rotating piece 16 is rotationally connected with the connecting seat 24, a lead screw structure or a pneumatic cylinder is arranged in the sliding rod 23 to drive the connecting seat 24 to slide along the sliding rod 23, and then drive the rotating piece 16 to slide, a motor is arranged in the connecting seat 24, the motor drives the rotating piece 16 to rotate, and then drives the first electromagnet 17 fixed with the rotating piece 16 to rotate, and the above structure realizes the movement of the rotating piece 16 in the front-back, left-right and up-down directions. The magnet 15 is located in the groove 14, the first electromagnet 17 faces the side of the magnet 15, the rotating piece 16 is fixedly connected with the first electromagnet 17, and the second electromagnet 18 is located on the pasting table 2.The first electromagnet 17 and the second electromagnet 18 are devices that generate electromagnetism by being supplied with electricity, i.e. a conducting coil that is wound around the outside of an iron core in a manner that matches the power thereof, and such a coil supplied with current has magnetism like the magnet 15.

[0037] The working / implementation / use principle of the present application is that the FOG liquid crystal screen to be inspected is placed on the feeding conveying belt mechanism 27, conveyed to below the first suction disc 35 of one of the transfer mechanisms, the first suction disc 35 adsorbs the FOG liquid crystal screen to be inspected, rotates through the stand column 28, so that the FOG liquid crystal screen to be inspected is located in the inspection area of the visual camera 26, the mechanical arm 29 slides along the stand column 28 to adjust the up-down position of the FOG liquid crystal screen to be inspected, the connecting rod 30 rotates under the driving of the motor, drives the arc-shaped ring 31 and the moving rod 32 to move in the transverse direction, thereby driving the FOG liquid crystal screen to be inspected to move in the transverse direction, the rotating shaft 34 rotates under the driving of the motor, thereby driving the FOG liquid crystal screen to be inspected adsorbed by the first suction disc 35 to overturn, and each direction of the FOG liquid crystal screen to be inspected is exposed to the inspection area of the visual camera 26 for multi-directional identification inspection. Then the first suction disc 35 of another transfer mechanism approaches the FOG liquid crystal screen under inspection to adsorb the FOG liquid crystal screen, the first suction disc 35 of the previous transfer mechanism loosens and moves away from the FOG liquid crystal screen, and another transfer mechanism moves in the same way to drive the visual camera 26 to conduct omnidirectional detection, compare the images of the same parts, and the detection accuracy is higher. After all the inspection is completed, the result is obtained; when the inspection result is that the FOG liquid crystal screen does not have any kind of defect, another transfer mechanism directly adsorbs and places the qualified FOG liquid crystal screen on the discharging conveying belt mechanism 36 to convey to the next process for processing, at this time, the pressing plate 10 of each pressing mechanism corresponds to the first release paper 7 between the first release paper 8 before and the pasting paper 9 after, for example, the pasting paper A, the second release paper A, the first release paper, the pasting paper B, and the second release paper B are sequentially arranged between the first rotating drum 5 and the second rotating drum 6, at this time, the pressing plate 10 is located on the first release paper between the second release paper A and the pasting paper B.When the test result is that the FOG liquid crystal screen has one or more of the undesirable defects, such as air bubbles and overflow defects, the transfer mechanism adsorbs the unqualified FOG liquid crystal screen to the pasting table 2, the pasting paper 9 is printed with the action of the pressing mechanism corresponding to the air bubbles and the overflow, the screw rod 13 is driven to rotate under the connection of the motor, and then drives the connecting piece 11 to move, so that the pressing plate 10 moves towards the second release paper A, so that the second release paper A has a gap with the first release paper 7. With the movement of the pressing plate 10, most of the second release paper A is located on the arc surface 19 of the pressing plate 10, the tearing mechanism acts, so that the rotating piece 16 is located above the second release paper A, the first electromagnet 17 is electrified, and has opposite magnetism with the magnet 15 located on the arc surface 19 of the pressing plate 10, so that the second release paper A is clamped. At this time, the tearing mechanism acts again and slides towards the pasting paper A, the rotating piece 16 rotates towards the pasting paper A, so that the pasting paper A is separated from the first release paper 7, the tearing mechanism drives the clamped pasting paper A and the second release paper A to move to the unqualified FOG liquid crystal screen of the pasting table 2, the tearing mechanism drives the rotating piece 16 to move downward and transversely, the rotating piece 16 rotates, so that the pasting surface of the pasting paper A faces the unqualified FOG liquid crystal screen and is pasted on the unqualified FOG liquid crystal screen, the first electromagnet 17 is de-energized and has no magnetism, the second electromagnet 18 is energized and has magnetism, and has opposite magnetism with the magnet 15, so that the first electromagnet 17 and the magnet 15 do not clamp the second release paper A. The transfer mechanism adsorbs the unqualified FOG liquid crystal screen with the pasting of the defect description to the unqualified transmission of the discharging transmission belt mechanism 36 and transmits it to the rework station for rework processing. In addition, the pasting table 2 has a first placing groove 37 and a second placing groove 38, the FOG liquid crystal screen is located in the first placing groove 37, and the second electromagnet 18 is located in the second placing groove 38. The first placing groove 37 and the second placing groove 38 are used for positioning, so as to accurately place the falling of the second release paper 8 and the pasting of the pasting paper 9. When the transfer mechanism adsorbs the unqualified FOG liquid crystal screen with the pasting of the defect description to the unqualified transmission of the discharging transmission belt mechanism 36 and transmits it to the rework station for rework processing, the second electromagnet 18 is de-energized and has no magnetism, the first electromagnet 17 is energized and has opposite magnetism with the magnet 15, the tearing mechanism drives the magnet 15 to move to the groove 14 of the pressing plate 10 for resetting, so as to facilitate the next operation. The mechanical equipment is used to realize automatic feeding and discharging to detect the FOG liquid crystal screen for defects such as silver paste leakage, silver paste position point error, silver paste contact with upper film protection film, corner collapse, broken pieces, less glue, air bubbles, overflow, cracks, POL uplift, surface glue air bubbles, and missed one-line glue appearance inspection and transportation. After the test is unqualified, the unqualified label is automatically pasted, the efficiency is high, and the labor degree is low.

[0038] In addition, the tear-and-stick mechanism further comprises a second suction cup 39 fixedly connected with the rotating member 16 and located on the side facing the adhesive paper 9. The second suction cup 39 is communicated with a vacuum generator through a connecting pipe connected with a vent of the second suction cup 39. When the vacuum generator is started, the vent is ventilated, the air inside the second suction cup 39 is sucked away, a vacuum state with a pressure P2 is formed, the air pressure inside the second suction cup 39 is lower than the atmospheric pressure P1 outside the second suction cup 39, i.e. P2 < P1, and the side without adhesion of the adhesive paper 9 is sucked up under the action of the external pressure, preventing the adhesive paper 9 from floating during the movement of the tear-and-stick mechanism and improving the subsequent sticking effect.

[0039] Meanwhile, the sticking member further comprises a third release paper 40 fixedly connected with the second release paper 8 and located above the second release paper 8 and on the side facing the pressing plate 10. The third release paper 40 is arranged to facilitate the second release paper 8 to be pushed up to arch and form a gap with the first release paper 7 when the pressing plate 10 moves towards the second release paper 8, avoiding the side of the second release paper 8 from entering the bottom of the pressing plate 10 and affecting the subsequent clamping.

[0040] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions, which should be covered in the scope of the claims of the present application.

Claims

1. A FOG LCD screen inspection device, characterized in that, The device includes a workbench, an inspection component, and a labeling component. The inspection component is located on the workbench. The labeling component includes an adhesive table, a tear-off table, a mounting base, a tear-off mechanism, multiple label assemblies, and multiple pressing mechanisms. The adhesive table and the tear-off table are both fixedly connected to the workbench and located on one side of the inspection component. The mounting base is fixedly connected to the tear-off table and has multiple cavities. Each label assembly corresponds to one cavity. Each pressing mechanism corresponds to one label assembly. The tear-off mechanism is located on the side away from the inspection component. The label assembly includes a first rotating drum, a second rotating drum, a first release paper, and multiple adhesive components. The first rotating drum is rotatably connected to the adhesive table, and the second rotating drum is rotatably connected to the mounting base and located within the cavity. The first release paper is wound around the first rotating drum, and the first release paper and multiple adhesive components are wound around the second rotating drum. The multiple adhesive components are evenly distributed on the first release paper, and each adhesive component includes a second release paper and adhesive paper. The pressing mechanism includes a pressure plate, a connector, a connecting frame, and a lead screw. The pressure plate is located on the side facing the second release paper. The connector is fixedly connected to the pressure plate and located above the pressure plate. The connector is slidably connected to the connecting frame. The lead screw passes through the connector and is located inside the connecting frame. The connecting frame is slidably connected to the mounting base. The pressure plate has a groove. The peeling and pasting mechanism includes a magnet, a rotating component, a first electromagnet, a second electromagnet, and a second suction cup. The magnet is located in the groove, the first electromagnet faces the magnet, the rotating component is fixedly connected to the first electromagnet, and the second electromagnet is located on the pasting platform. The second suction cup is fixedly connected to the rotating component and is located on the side facing the pasting paper. Driven by a connected motor, the lead screw rotates, which in turn moves the connecting member, causing the pressure plate to move towards the second release paper, creating a gap between the second and first release papers. As the pressure plate moves, most of the second release paper lies on the arc surface of the pressure plate. The tearing and pasting mechanism activates, positioning the rotating member above the second release paper. The first electromagnet is energized, exhibiting opposite magnetism to the magnet located on the arc surface of the pressure plate; opposite poles attract, clamping the second release paper. At this point, the tearing and pasting mechanism activates again, sliding towards the pasting paper, and the rotating member moves towards the pasting paper. The paper rotates, separating the adhesive paper from the first release paper. The tearing and pasting mechanism moves the adhesive paper and the second release paper to the defective FOG LCD screen on the pasting table. The tearing and pasting mechanism moves the rotating component downward and laterally. The rotating component rotates so that the adhesive surface of the adhesive paper faces the defective FOG LCD screen and is pasted onto the defective FOG LCD screen. The first electromagnet is de-energized and has no magnetism, while the second electromagnet is energized and has magnetism opposite to that of the first magnet. Opposite poles attract each other, and the first electromagnet and the first magnet do not hold the second release paper.

2. The FOG LCD screen inspection device according to claim 1, characterized in that, The pressure plate has an arc surface facing the side of the second release paper, and the groove is located within the arc surface.

3. The FOG LCD screen inspection device according to claim 1, characterized in that, The peeling and labeling mechanism further includes a horizontal fixed seat, a vertical fixed seat, a slider, a sliding rod, and a connecting seat. The horizontal fixed seat is fixedly connected to the worktable and is located on the side of the pasting table and the label peeling table away from the inspection component. The vertical fixed seat is slidably connected to the horizontal fixed seat through the slider. The sliding rod is slidably connected to the vertical fixed seat. The connecting seat is slidably connected to the sliding rod. The rotating component is rotatably connected to the connecting seat.

4. The FOG LCD screen inspection device according to claim 1, characterized in that, The inspection assembly includes an inspection table, a vision camera, a feeding conveyor belt mechanism, and two transfer mechanisms. The inspection table is located on one side of the label-tearing table, the vision camera is fixedly connected to the inspection table, the feeding conveyor belt mechanism is located on one side of the inspection table, and the two transfer mechanisms are located on one side of the inspection table.

5. The FOG LCD screen inspection device according to claim 4, characterized in that, The transfer mechanism includes a column, a robotic arm, a connecting rod, an arc-shaped ring, and a moving rod. The column is rotatably connected to the worktable, the robotic arm is slidably connected to the column, the connecting rod is located inside the robotic arm and is rotatably connected to the arc-shaped ring, and the moving rod is fixedly connected to the arc-shaped ring and slides with the connecting rod as it rotates.

6. The FOG LCD screen inspection device according to claim 5, characterized in that, The transfer mechanism further includes a mounting frame, a rotating shaft, and a first suction cup. The mounting frame is fixedly connected to the moving rod, the rotating shaft is rotatably connected to the mounting frame, and the first suction cup is fixedly connected to the rotating shaft.

7. The FOG LCD screen inspection device according to claim 4, characterized in that, The inspection assembly also includes two unloading conveyor belt mechanisms, which are located on one side of the transfer mechanism.

Images