An automatic detection machine for LCD screen bonding foreign matter

Abstract

The present invention discloses an automatic foreign body detection machine for bonding of liquid crystal screens, comprising a machine base, a feeding mechanism, a loading mechanism, a delivery mechanism, a detection mechanism, a unloading mechanism and a discharging mechanism arranged on the machine base, wherein the feeding mechanism is used to convey a liquid crystal screen to be inspected for grabbing by the loading mechanism, the loading mechanism is used to grab the liquid crystal screen to be inspected and move it laterally along the machine base to place it on the delivery mechanism, the delivery mechanism moves longitudinally along the machine base to convey the liquid crystal screen to be inspected, the detection mechanism is used to inspect the liquid crystal screen, the unloading mechanism is used to grab the inspected liquid crystal screen on the delivery mechanism and move it laterally along the machine base to place the discharging mechanism, and the discharging mechanism is used to convey the inspected liquid crystal screen. An automatic foreign body detection machine for bonding of liquid crystal screens, in which the liquid crystal screen can be inspected for foreign bodies without turning over, which greatly improves the detection efficiency of the liquid crystal screen, and the liquid crystal screen faces forward to avoid scratches on the surface glass, thereby ensuring the stability of product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal screens, and in particular to an automatic detection machine for foreign matter in bonding of liquid crystal screens. Background Art

[0002] LCD screens are used as display devices in all aspects of daily life. After the production of LCD screens, they need to be tested to ensure the quality of the product.

[0003] During the LCD bonding process, dust or foreign objects may enter the bonding area. Since the LCD bonding surface is usually on the back of the LCD, the LCD needs to be turned over during the inspection process, including taking pictures and analyzing the LCD screen with a camera to determine whether there is dust or foreign objects inside the LCD screen. This makes the efficiency of LCD inspection low. Summary of the invention

[0004] The present invention proposes an automatic LCD screen bonding foreign body detection machine, which can perform foreign body inspection without turning over the LCD screen, greatly improving the detection efficiency of the LCD screen. The LCD screen faces forward to avoid scratches on the surface glass, thereby ensuring the stability of product quality.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A liquid crystal screen bonding foreign body automatic detection machine, comprising a machine base, a feeding mechanism, a loading mechanism, a delivery mechanism, a detection mechanism, a unloading mechanism and a discharging mechanism arranged on the machine base, wherein the feeding mechanism is used to convey a liquid crystal screen to be inspected for grabbing by the loading mechanism, the loading mechanism is used to grab the liquid crystal screen to be inspected and move it laterally along the machine base to place it on the delivery mechanism, the delivery mechanism moves longitudinally along the machine base to convey the liquid crystal screen to be tested, the detection mechanism is used to test the liquid crystal screen, the unloading mechanism is used to grab the inspected liquid crystal screen on the delivery mechanism and move it laterally along the machine base to place it on the discharging mechanism, and the discharging mechanism is used to convey the inspected liquid crystal screen.

[0007] Preferably, the feeding mechanism includes a first longitudinal movement module, a first longitudinal movement table, a first transverse movement module, a first transverse movement table, a first rotating table, a first direct drive motor and a first carrier. The first longitudinal movement module is fixed on the machine base for driving the first longitudinal movement table to move longitudinally. The first transverse movement module is fixed on the first longitudinal movement table for driving the first transverse movement table to move transversely. The first transverse movement table is provided with the first rotating table. The first carrier can be rotatably set on the first rotating table. The first direct drive motor for driving the first carrier is provided on the first rotating table. The first carrier is provided with a first suction hole.

[0008] Preferably, a mounting frame is provided on the machine base, and a second transverse movement module is provided on the mounting frame. The second transverse movement module is used to drive the loading mechanism and the unloading mechanism to move transversely. The loading mechanism and the unloading mechanism both include a second transverse movement platform, a first lifting module, a first lifting frame and a first grabbing assembly. The second transverse movement platform is driven by the second transverse movement module. The first lifting module is fixed on the second transverse movement platform and is used to drive the first lifting frame to lift and lower. The first lifting frame is provided with the first grabbing assembly.

[0009] Preferably, the first gripping assembly comprises a gripping substrate and a suction nozzle, the gripping substrate is provided with a plurality of sliding openings, the suction nozzle can be slidably arranged on the sliding openings, and its position is locked by a lock.

[0010] Preferably, the inspection mechanism includes a second longitudinal movement module, a second longitudinal movement platform, a second rotating platform, a second direct drive motor and a second carrier. A stabilizing plate is provided on the machine base. The second longitudinal movement module is fixed on the stabilizing plate to drive the second longitudinal movement platform to move longitudinally. The second longitudinal movement platform is provided with the second rotating platform. The second carrier can be rotatably set on the second rotating platform. A rotating motor slot is provided on the second rotating platform. The second direct drive motor for driving the second carrier is provided in the rotating motor slot. A second suction hole is provided on the second carrier. A detection bottom plate is provided on the side of the second carrier close to the detection mechanism, and a detection port is provided on the detection bottom plate.

[0011] Preferably, the detection mechanism includes a third transverse movement module, a third transverse movement table, a second lifting module, a second lifting frame, a detection camera and a detection light source. The third transverse movement module is fixed on the stabilizing plate, and is used to drive the third transverse movement table to move transversely. A lifting base plate is vertically provided on the side of the third transverse movement table close to the inspection mechanism. The second lifting module is fixed on the lifting base plate, and is used to drive the second lifting frame to move up and down. The second lifting frame is provided with the detection camera, and the camera head of the detection camera faces upward. The second lifting frame is also provided with the detection light source. The stabilizing plate is provided with a lifting port for the lifting and lowering of the lifting base plate.

[0012] Preferably, a first CCD positioning camera is also provided on the lifting substrate, and the camera head of the first CCD positioning camera faces upward. The first CCD positioning camera is used to collect LCD screen information on the second stage and send it to the first image processing module to obtain coordinate information of the LCD screen to be tested on the second stage.

[0013] Preferably, the machine base is provided with a third longitudinal movement module below the feeding mechanism, and the third longitudinal movement module is used to drive the third longitudinal movement plate. The third longitudinal movement plate is provided with a sliding substrate, and a sliding opening is vertically provided on the sliding substrate. A sliding plate is slidably provided on the sliding opening, and the position is locked by a lock. The sliding plate is provided with a second CCD positioning camera, and the camera head of the second CCD positioning camera faces upward. The second CCD positioning camera is used to collect LCD screen information on the feeding mechanism and send it to the second image processing module to obtain the coordinate information of the LCD screen to be tested located at the feeding mechanism. A visual positioning camera is also provided above the feeding mechanism.

[0014] Preferably, the discharging mechanism includes a fourth longitudinal movement module, a fourth longitudinal movement platform, a fourth transverse movement module, a fourth transverse movement platform, a second grabbing assembly, a good product conveying platform and a defective product conveying platform. The first auxiliary frame and the second auxiliary frame are respectively provided on the side and the front side of the machine base close to the discharging end. The fourth longitudinal movement module is fixedly mounted on the first auxiliary frame for driving the fourth longitudinal movement platform to move longitudinally. The fourth longitudinal movement platform is provided with a third platform. The third platform is provided with a third suction hole. The first auxiliary frame and the second auxiliary frame are connected with a connecting frame. The fourth transverse movement module is fixedly mounted on the connecting frame for driving the fourth transverse movement platform to move transversely. The fourth transverse movement platform is provided with a second grabbing assembly. The defective product conveying platform is provided on the machine base between the inspection mechanism and the first auxiliary frame. The good product conveying platform is arranged on the second auxiliary frame.

[0015] Preferably, an ion blower for removing static electricity on the surface of the LCD screen to be inspected is also provided above the inspection mechanism.

[0016] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0017] 1. The present invention provides an automatic LCD screen Bonding foreign body inspection machine, in which a LCD screen to be tested is fed into the inspection mechanism, and a second carrier of the inspection mechanism is connected to a detection base plate on the front side, and a detection port is provided on the detection base plate. When the LCD screen to be tested can be directly placed on the second carrier with its front side facing upward, the bonding area on the back side can be exposed through the detection port, and then the detection mechanism drives the detection camera lens to face upward to inspect the LCD screen through the detection port. The LCD screen can be inspected for foreign bodies without turning it over, which greatly improves the inspection efficiency of the LCD screen. The LCD screen faces forward to avoid scratches on the surface glass, thereby ensuring the stability of product quality.

[0018] 2. The present invention provides an automatic liquid crystal screen bonding foreign body detection machine, which is provided with a feeding mechanism and a discharging mechanism near the manual operation position, and can be directly loaded and unloaded by one operator, saving labor costs.

[0019] 3. The present invention provides an automatic LCD screen Bonding foreign body detection machine, which automatically grabs the LCD screen to be tested and places it on the inspection mechanism through a loading mechanism, and automatically grabs the inspected LCD screen through a unloading mechanism and places it on a discharging mechanism. The loading and unloading mechanisms can be provided with multiple grabbing components, which can be used to grab large-size LCD screens, and can also be used to grab LCD screens on multiple inspection stations, thereby further improving the overall working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the present invention (without the outer frame);

[0022] Figure 3 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the feeding mechanism or the unloading mechanism of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the inspection mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the detection mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the positioning mechanism structure of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the 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 of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0029] Cooperate Figures 1 to 7As shown, the present invention discloses an automatic LCD screen Bonding foreign body detection machine, comprising a machine base 1, a feeding mechanism 2, a loading mechanism 3, a delivery mechanism 4, a detection mechanism 5, a unloading mechanism 6 and a discharging mechanism 7 arranged on the machine base, wherein the feeding mechanism 2 is used for conveying a LCD screen to be inspected for grabbing by the loading mechanism 3, the loading mechanism 3 is used for grabbing the LCD screen to be inspected and moving it laterally along the machine base 1 to place it on the delivery mechanism 4, the delivery mechanism 4 moves longitudinally along the machine base 1 to convey the LCD screen to be inspected, the detection mechanism 5 is used for inspecting the LCD screen, the unloading mechanism 6 is used for grabbing the inspected LCD screen on the delivery mechanism 4 and moving it laterally along the machine base 1 to place it on the discharging mechanism 7, and the discharging mechanism 7 is used for conveying the inspected LCD screen.

[0030] The feeding mechanism 2 includes a first longitudinal movement module 21, a first longitudinal movement platform 22, a first transverse movement module 23, a first transverse movement platform 24, a first rotating platform 25, a first direct drive motor (not shown in the figure) and a first carrier 26. The first longitudinal movement module 21 is fixedly arranged on the machine base 1, and is used to drive the first longitudinal movement platform 22 to move longitudinally. The first transverse movement module 23 is fixedly arranged on the first longitudinal movement platform 22, and is used to drive the first transverse movement platform 24 to move transversely. The first transverse movement platform 24 is provided with a first rotating platform 25. The first carrier 26 can be rotatably arranged on the first rotating platform 25. The first rotating platform 25 is provided with a first direct drive motor for driving the first carrier 26. The first carrier 26 is provided with a first suction hole 261.

[0031] A mounting frame 11 is provided on the machine base 1, and a second transverse movement module 12 is provided on the mounting frame 11. The second transverse movement module 12 is used to drive the loading mechanism 3 and the unloading mechanism 6 to move transversely. The loading mechanism 3 and the unloading mechanism 6 both include a second transverse movement platform 31, a first lifting module 32, a first lifting frame 33 and a first grabbing assembly 34. The second transverse movement platform 31 is driven by the second transverse movement module 12. The first lifting module 32 is fixed on the second transverse movement platform and is used to drive the first lifting frame 33 to move up and down. The first lifting frame 33 is provided with a first grabbing assembly 34.

[0032] The first grabbing assembly 34 includes a grabbing substrate 341 and a suction nozzle 342 . The grabbing substrate 341 is provided with a plurality of sliding openings 4311 . The suction nozzle 432 can be slidably disposed on the sliding openings 3411 and is locked in position by a lock 343 .

[0033] The inspection mechanism 4 includes a second longitudinal movement module 41, a second longitudinal movement platform 42, a second rotating platform 43, a second direct drive motor (not shown in the figure) and a second carrier 44. A stabilizing plate 13 is provided on the machine base 1. The stabilizing plate 13 is made of marble to ensure its stability during the inspection process. The second longitudinal movement module 41 is fixed on the stabilizing plate 13, and is used to drive the second longitudinal movement platform 42 to move longitudinally. The second longitudinal movement platform 42 is provided with a second rotating platform 43. The second carrier 45 can be rotatably set on the second rotating platform 43. The second rotating platform 43 is provided with a rotating motor slot (not shown in the figure), and the rotating motor slot is provided with a second direct drive motor for driving the second carrier 43. A second suction hole 441 is provided on the second carrier 44, and a detection base plate 45 is provided on the side of the second carrier 44 close to the detection mechanism, and a detection port 451 is provided on the detection base plate 45.

[0034] The detection mechanism 5 includes a third transverse movement module 51, a third transverse movement platform 52, a second lifting module 53, a second lifting frame 54, a detection camera 55 and a detection light source 56. The third transverse movement module 51 is fixed on the stabilizing plate 13, and is used to drive the third transverse movement platform 52 to move transversely. A lifting base plate 57 is vertically provided on the side of the third transverse movement platform 52 close to the inspection mechanism 4. The second lifting module 53 is fixed on the lifting base plate 57, and is used to drive the second lifting frame 54 to move up and down. The second lifting frame 54 is provided with a detection camera 55, and the camera head of the detection camera 55 faces upward. The second lifting frame 54 is also provided with a detection light source 56. The stabilizing plate 13 is provided with a lifting port 131 for the lifting and lowering of the lifting base plate 57.

[0035] A first CCD positioning camera 58 is also provided on the lifting base plate 57, and the camera head of the first CCD positioning camera 58 faces upward. The first CCD positioning camera 58 is used to collect LCD screen information on the second stage 44 and send it to the first image processing module to obtain the coordinate information of the LCD screen to be tested on the second stage 44.

[0036] It also includes a positioning mechanism 8, which includes a third longitudinal movement module 81. The machine base 1 is located 3 meters below the feeding mechanism and is provided with a third longitudinal movement module 81. The third longitudinal movement module 81 is used to drive a third longitudinal movement plate 82. A sliding substrate 83 is provided on the third longitudinal movement plate 82. A sliding opening 831 is vertically provided on the sliding substrate 83. A sliding plate 84 is slidably provided on the sliding opening 831, and the position is locked by a lock. The sliding plate 84 is provided with a second CCD positioning camera 85, and the camera head of the second CCD positioning camera 85 faces upward. The second CCD positioning camera 85 is used to collect LCD screen information on the feeding mechanism 3 and send it to the second image processing module to obtain the coordinate information of the LCD screen to be tested located at the feeding mechanism 3. A visual positioning camera 17 is also provided above the feeding mechanism 2.

[0037] The discharging mechanism 7 includes a fourth longitudinal movement module 71, a fourth longitudinal movement platform 72, a fourth transverse movement module 73, a fourth transverse movement platform 74, a second grabbing assembly 75, a good product conveying platform 76 and a defective product conveying platform 77. The first auxiliary frame 14 and the second auxiliary frame 15 are respectively provided on the side and the front side close to the discharging end of the machine base 1. The fourth longitudinal movement module 71 is fixedly mounted on the first auxiliary frame 14 for driving the fourth longitudinal movement platform 72 to move longitudinally. The fourth longitudinal movement platform 64 is provided with a third carrier 78, and the third carrier 78 is provided with a third suction hole 781. The first auxiliary frame 14 and the second auxiliary frame 15 are connected with a connecting frame 16. The fourth transverse movement module 71 is fixedly mounted on the connecting frame 16 for driving the fourth transverse movement platform 74 to move transversely. The fourth transverse movement platform 74 is provided with a second grabbing assembly 75. A defective product conveying platform 77 is provided on the machine base 1 between the inspection mechanism 4 and the first auxiliary frame 14, and the good product conveying platform 78 is arranged on the second auxiliary frame 15.

[0038] An ion blower 18 is also provided above the inspection mechanism 4 to remove static electricity from the surface of the LCD screen to be inspected.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic LCD screen bonding foreign body detection machine, characterized by: A machine base, a feeding mechanism, a loading mechanism, a delivery mechanism, a detection mechanism, a unloading mechanism and a discharging mechanism arranged on the machine base, wherein the feeding mechanism is used to convey the LCD screen to be inspected for the loading mechanism to grab, the loading mechanism is used to grab the LCD screen to be inspected and move it laterally along the machine base to place it on the delivery mechanism, the delivery mechanism moves longitudinally along the machine base to convey the LCD screen to be tested, the detection mechanism is used to test the LCD screen, the unloading mechanism is used to grab the inspected LCD screen on the delivery mechanism and move it laterally along the machine base to place the discharging mechanism, and the discharging mechanism is used to convey the inspected LCD screen; The feeding mechanism and the discharging mechanism are arranged on both sides of the manual operation position; The feeding mechanism includes a first longitudinal movement module, a first longitudinal movement platform, a first transverse movement module, a first transverse movement platform, a first rotating platform, a first direct drive motor and a first carrier, wherein the first longitudinal movement module is fixedly mounted on the machine base and used for driving the first longitudinal movement platform to move longitudinally, the first transverse movement module is fixedly mounted on the first longitudinal movement platform and used for driving the first transverse movement platform to move transversely, the first transverse movement platform is provided with the first rotating platform, the first carrier can be rotatably mounted on the first rotating platform, the first direct drive motor for driving the first carrier is provided on the first rotating platform, and the first carrier is provided with a first suction hole; The inspection mechanism includes a second longitudinal movement module, a second longitudinal movement platform, a second rotating platform, a second direct drive motor and a second carrier, the machine base is provided with a stabilizing plate, the second longitudinal movement module is fixedly mounted on the stabilizing plate, and is used to drive the second longitudinal movement platform to move longitudinally, the second longitudinal movement platform is provided with the second rotating platform, the second carrier is rotatably arranged on the second rotating platform, a rotating motor slot is provided on the second rotating platform, the second direct drive motor for driving the second carrier is provided in the rotating motor slot, the second carrier is provided with a second suction hole, a detection bottom plate is provided on the second carrier close to the detection mechanism, and a detection port is provided on the detection bottom plate; The detection mechanism includes a third transverse movement module, a third transverse movement platform, a second lifting module, a second lifting frame, a detection camera and a detection light source. The third transverse movement module is fixedly mounted on the stabilizing plate and is used to drive the third transverse movement platform to move transversely. A lifting base plate is vertically arranged on the side of the third transverse movement platform close to the inspection mechanism. The second lifting module is fixedly mounted on the lifting base plate and is used to drive the second lifting frame to move upward. The detection camera is arranged on the second lifting frame, and the camera head of the detection camera faces upward. The detection light source is also arranged on the second lifting frame. A lifting port for lifting the lifting base plate is provided on the stabilizing plate. The discharging mechanism includes a fourth longitudinal movement module, a fourth longitudinal movement platform, a fourth transverse movement module, a fourth transverse movement platform, a second grabbing assembly, a good product conveying platform and a defective product conveying platform, a first auxiliary frame and a second auxiliary frame are respectively provided on one side of the machine base close to the discharging end and the front side, the fourth longitudinal movement module is fixedly mounted on the first auxiliary frame, and is used to drive the fourth longitudinal movement platform to move longitudinally, a third carrier is provided on the fourth longitudinal movement platform, a third suction hole is provided on the third carrier, a connecting frame is connected to the first auxiliary frame and the second auxiliary frame, the fourth transverse movement module is fixedly mounted on the connecting frame, and is used to drive the fourth transverse movement platform to move transversely, a second grabbing assembly is provided on the fourth transverse movement platform, the defective product conveying platform is provided on the machine base between the inspection mechanism and the first auxiliary frame, and the good product conveying platform is arranged on the second auxiliary frame; It also includes a positioning mechanism, the positioning mechanism includes a third longitudinal movement module (81), the machine base is located below the feeding mechanism and is provided with a third longitudinal movement module, the third longitudinal movement module is used to drive a third longitudinal movement plate, the third longitudinal movement plate is provided with a sliding base plate, the sliding base plate is vertically provided with a sliding opening, a sliding plate is slidably provided on the sliding opening, and its position is locked by a lock, the sliding plate is provided with a second CCD positioning camera, and the camera head of the second CCD positioning camera faces upwards, the second CCD positioning camera is used to collect information of the LCD screen on the feeding mechanism, and send it to the second image processing module to obtain the coordinate information of the LCD screen to be tested located at the feeding mechanism, and a visual positioning camera is also provided above the feeding mechanism.

2. The automatic LCD screen bonding foreign body detection machine as claimed in claim 1, characterized in that: The machine base is provided with a mounting frame, the mounting frame is provided with a second transverse movement module, the second transverse movement module is used to drive the loading mechanism and the unloading mechanism to move transversely, the loading mechanism and the unloading mechanism both include a second transverse movement platform, a first lifting module, a first lifting frame and a first grabbing assembly, the second transverse movement platform is driven by the second transverse movement module, the first lifting module is fixed on the second transverse movement platform, and is used to drive the first lifting frame to lift, and the first lifting frame is provided with the first grabbing assembly.

3. The automatic LCD screen bonding foreign body detection machine as claimed in claim 2, characterized in that: The first grabbing assembly comprises a grabbing substrate and a suction nozzle. The grabbing substrate is provided with a plurality of sliding openings. The suction nozzle can be slidably arranged on the sliding openings and is locked in position by a lock.

4. The automatic LCD screen bonding foreign body detection machine as claimed in claim 1, characterized in that: The lifting substrate is also provided with a first CCD positioning camera, and the camera head of the first CCD positioning camera faces upward. The first CCD positioning camera is used to collect information of the LCD screen on the second stage and send it to the first image processing module to obtain coordinate information of the LCD screen to be tested on the second stage.

5. The automatic LCD screen bonding foreign body detection machine as claimed in claim 1, characterized in that: An ion blower for removing static electricity from the surface of the LCD screen to be inspected is also provided above the inspection mechanism.

Images