Liquid crystal module screen detection equipment

Abstract

The utility model relates to the technical field of display screen detection, in particular to liquid crystal module screen detection equipment. Comprising a rack, first transmission belt equipment, second transmission belt equipment, a first visual camera, a second visual camera and a plurality of liquid crystal display placing mechanisms, the first transmission belt equipment and the second transmission belt equipment are both mounted on the rack; the first visual camera and the second visual camera are both mounted on the rack; the multiple liquid crystal screen containing mechanisms are all installed on the periphery of the first transmission belt. The detection device is high in detection efficiency, and can realize automatic turn-over work of the liquid crystal module screen so as to realize double-sided detection of the liquid crystal module screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen detection technical field, especially a kind of liquid crystal module screen detection equipment. BACKGROUND

[0002] Liquid crystal module screen generally includes liquid crystal display screen, back light plate, light shield, printed circuit board (Printed Circuit Board, PCB), light guide plate, etc., these components are assembled in certain form to form the liquid crystal module screen with preliminary display function. In order to ensure the quality of liquid crystal module screen, in addition to the display performance of liquid crystal module screen needs to be detected, the appearance of liquid crystal module screen also needs to be detected.

[0003] In order to improve the detection efficiency of liquid crystal module screen in prior art, conveying belt equipment is usually arranged to convey liquid crystal module screen for detection, but in the process of double-side detection, manual or machine is needed to turn over, manual turning over affects detection efficiency, and if machine is used to turn over, the manufacturing cost of equipment is undoubtedly increased. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems in the background art, and proposes a kind of liquid crystal module screen detection equipment.

[0005] The technical scheme of the utility model, a kind of liquid crystal module screen detection equipment, includes:

[0006] Rack;

[0007] First drive belt equipment and second drive belt equipment, first drive belt equipment and second drive belt equipment are installed on rack;First drive belt equipment includes first drive belt and the first power component for driving the movement of first drive belt;

[0008] First vision camera and second vision camera, first vision camera and second vision camera are installed on rack;

[0009] Multiple liquid crystal screen placing mechanisms, multiple liquid crystal screen placing mechanisms are installed on the outer periphery of first drive belt;Liquid crystal screen placing mechanism includes liquid crystal screen placing seat and cover plate;Support is connected between liquid crystal screen placing seat and first drive belt, placing groove is opened on liquid crystal screen placing seat, cover plate is slidably installed on liquid crystal screen placing seat, and elastic reset component is connected between cover plate and liquid crystal screen placing seat;Mounting bracket is connected on liquid crystal screen placing seat, push rod is slidably installed on mounting bracket, drive assembly is installed on mounting bracket, and drive assembly is connected with push rod;The conveying end side of first drive belt is provided with U-shaped plate, U-shaped plate is connected with rack, and the upper end side of push rod is connected with inclined plate.

[0010] Preferably, the first electric push rod and the second electric push rod are installed on the rack, and the output shafts of the first electric push rod and the second electric push rod are respectively connected with the first marker pen and the second marker pen, and the first marker pen and the second marker pen are respectively located above the first transmission belt device and the second transmission belt device.

[0011] Preferably, the elastic reset assembly comprises a guide rod and a spring, the cover plate is connected with a connecting sliding block, the guide rod is arranged on the side of the liquid crystal screen placing seat, the connecting sliding block is slidingly arranged on the guide rod, and the spring is sleeved and installed on the guide rod.

[0012] Preferably, the transmission assembly comprises a first gear rack, a second gear rack, a first gear, a second gear and a mounting shaft, the first gear rack is slidingly arranged on the mounting support and connected with the push rod, the second gear rack is connected with the cover plate, the mounting shaft is rotatably mounted on the mounting support, the first gear and the second gear are both mounted on the mounting shaft, and the first gear rack and the second gear rack are respectively meshed with the first gear and the second gear.

[0013] Preferably, the second transmission belt device comprises a second transmission belt and a second power assembly for driving the second transmission belt to move, and the outer periphery of the second transmission belt is provided with a sponge.

[0014] Preferably, the inner side upper end of the first transmission belt and the inner side upper end of the second transmission belt are both provided with a horizontal support plate, and the horizontal support plate is connected with the rack.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1、 through installing a plurality of liquid crystal screen placing mechanism makes the equipment can carry out discharging, detection and unloading work in synchronization, improves the work efficiency.

[0017] 2、 through the cooperation of transmission assembly, elastic reset assembly, push rod, cover plate and U-shaped plate can realize the automatic turning over of the liquid crystal module screen, need not separate equipment turning over equipment, and cooperate the second visual camera of installation, can realize the double -sided detection work of liquid crystal module screen. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model.

[0019] Figure 2 It is the side structure sectional view of the utility model.

[0020] Figure 3 It is the structure schematic diagram of the liquid crystal screen placing seat, the cover plate, the elastic reset assembly and the transmission assembly in the utility model.

[0021] Label: 1, rack; 201, first transmission belt; 202, first servo motor; 203, first transmission roller; 301, second transmission belt; 302, second servo motor; 303, second transmission roller; 4, LCD screen placement seat; 401, placement groove; 51, first visual camera; 52, second visual camera; 6, mounting bracket; 71, first rack; 72, second rack; 81, first gear; 82, second gear; 9, mounting shaft; 10, push rod; 11, cover plate; 12, connecting slider; 13, guide rod; 14, spring; 15, support; 161, first electric push rod; 162, second electric push rod; 171, first marker pen; 172, second marker pen; 18, horizontal support plate; 19, U-shaped plate; 191, inclined plate; 20, sponge. DETAILED DESCRIPTION

[0022] Example one

[0023] As Figures 1-3 shown, the LCD module screen detection equipment proposed in the embodiment comprises a rack 1, a first transmission belt device, a second transmission belt device, a first visual camera 51, a second visual camera 52, and a plurality of LCD screen placement mechanisms.

[0024] The first transmission belt device and the second transmission belt device are both mounted on the rack 1, and the first transmission belt device is located above the second transmission belt device. The first transmission belt device comprises a first transmission belt 201 and a first power assembly for driving the first transmission belt 201 to move. The first power assembly comprises a first servo motor 202 and two first transmission rollers 203. The two first transmission rollers 203 are both mounted in parallel and rotatably on the rack 1. The first transmission belt 201 is sleeved and mounted on the two first transmission rollers 203. The first servo motor 202 is mounted on the rack 1, and its output shaft is connected with the rotating shaft of the first transmission roller 203. The second transmission belt device comprises a second transmission belt 301 and a second power assembly for driving the second transmission belt 301 to move. The second power assembly comprises a second servo motor 302 and two second transmission rollers 303. The two second transmission rollers 303 are both mounted in parallel and rotatably on the rack 1. The second transmission belt 301 is sleeved and mounted on the two second transmission rollers 303. The second servo motor 302 is mounted on the rack 1, and its output shaft is connected with the rotating shaft of the second transmission roller 303. The outer periphery of the second transmission belt 301 is provided with a sponge 20. The sponge 20 has a buffering effect and can protect the LCD module screen after being flipped and dropped. The inner upper end of the first transmission belt 201 and the inner upper end of the second transmission belt 301 are both provided with a horizontal support plate 18. The horizontal support plate 18 is connected with the rack 1. The horizontal support plate 18 is arranged to prevent the upper middle part of the first transmission belt 201 and the second transmission belt 301 from falling.

[0025] The first visual camera 51 and the second visual camera 52 are both mounted on the rack 1, and the first visual camera 51 and the second visual camera 52 are respectively used for detecting two end faces of the liquid crystal module screen, and the first visual camera 51 and the second visual camera 52 are respectively located above the first conveying belt device and the second conveying belt device.

[0026] The plurality of liquid crystal screen placing mechanisms are all mounted on the outer periphery of the first transmission belt 201; the liquid crystal screen placing mechanism comprises a liquid crystal screen placing seat 4 and a cover plate 11; a support 15 is connected between the liquid crystal screen placing seat 4 and the first transmission belt 201, the liquid crystal screen placing seat 4 is provided with a placing groove 401, the cover plate 11 is slidingly mounted on the liquid crystal screen placing seat 4, an elastic reset assembly is connected between the cover plate 11 and the liquid crystal screen placing seat 4, the elastic reset assembly comprises a guide rod 13 and a spring 14, the cover plate 11 is connected with a connecting sliding block 12, the guide rod 13 is arranged on the side of the liquid crystal screen placing seat 4, the connecting sliding block 12 is slidingly arranged on the guide rod 13, and the spring 14 is sleeved and mounted on the guide rod 13; the transmission assembly comprises a first rack 71, a second rack 72, a first gear 81, a second gear 82 and a mounting shaft 9, the first rack 71 is slidingly arranged on the mounting bracket 6 and connected with the push rod 10, the second rack 72 is connected with the cover plate 11, the mounting shaft 9 is rotatably mounted on the mounting bracket 6, the first gear 81 and the second gear 82 are both mounted on the mounting shaft 9, and the first rack 71 and the second rack 72 are respectively meshed with the first gear 81 and the second gear 82; the transmission assembly is arranged to convert the movement of the push rod 10 into the movement of the cover plate 11; the mounting bracket 6 is connected with the liquid crystal screen placing seat 4, the push rod 10 is slidingly mounted on the mounting bracket 6, the transmission assembly is mounted on the mounting bracket 6, and the transmission assembly is connected with the push rod 10; the conveying end side of the first transmission belt 201 is provided with a U-shaped plate 19, the U-shaped plate 19 is connected with the rack 1, and the upper end side of the push rod 10 is connected with an inclined plate 191.

[0027] Specifically, when detecting the liquid crystal module screen, the liquid crystal module screen is placed on the inner side of the placing groove 401, and then the first power assembly is arranged to drive the first transmission belt 201 to move, that is, the liquid crystal screen placing seat 4 and the liquid crystal module screen are moved. When the liquid crystal screen placing seat 4 moves to the position below the first visual camera 51, the first transmission belt 201 stops moving. The first visual camera 51 takes a picture of the upper end of the liquid crystal module screen and feeds back the signal to the computer. The computer identifies and processes the feedback data to determine whether there is a defect on the upper surface of the liquid crystal module screen. When the detection work is completed, the first transmission belt 201 is continuously driven to move. When the liquid crystal module screen moves to the position on one side of the U-shaped plate 19, and when the push rod 10 contacts the inclined surface of the inclined plate 191, the push rod 10 is forced to move inward. The movement of the push rod 10 drives the first rack 71 to move. The first rack 71 drives the first gear 81 and the second gear 82 to rotate. The rotation of the second gear 82 drives the second rack 72 to move to one side of the placing groove 401. Until the cover plate 11 completely covers the placing groove 401, and at this time the spring 14 is compressed. The structure is arranged to protect the liquid crystal module screen from falling during the downward rotation. When the push rod 10 is separated from the bottom end position of the U-shaped plate 19, the compressed spring 14 quickly resets and drives the cover plate 11 to reset. At this time, the placing groove 401 is in an open state. The liquid crystal module screen on the inner side of the placing groove 401 falls onto the sponge 20 and realizes automatic turning over. When the liquid crystal module screen moves to the position below the second visual camera 52, the second visual camera 52 arranged can realize the detection work of the other side of the liquid crystal module screen.

[0028] It should be noted that, in order to realize the positioning work of the first transmission belt 201 and the second transmission belt 301, a first laser ranging sensor and a second laser ranging sensor are respectively installed at positions adjacent to the first visual camera 51 and the second visual camera 52. The first laser ranging sensor and the second laser ranging sensor are signal connected with the computer. When the support 15 blocks the detection end position of the first laser ranging sensor, according to the change of the measured data, the computer can control the first power assembly to stop driving work, so as to realize the positioning of the liquid crystal module screen. The second laser ranging sensor is located above the second transmission belt 301. When the liquid crystal module screen moves to the position below the second laser ranging sensor, the computer controls the second power assembly to stop driving work, so as to realize the repositioning of the liquid crystal module screen. The purpose of arranging the above structure is to realize the shooting of the liquid crystal module screen in the static state, and to ensure the clarity of the collected picture.

[0029] Embodiment two

[0030] As Figure 1 and Figure 2Compared with the first embodiment, in order to realize the distinguishing of the detected defective products, the first electric push rod 161 and the second electric push rod 162 are installed on the rack 1, the first marker pen 171 and the second marker pen 172 are respectively connected to the output shafts of the first electric push rod 161 and the second electric push rod 162, and the first marker pen 171 and the second marker pen 172 are respectively located above the first transmission belt device and the second transmission belt device; when the surface of the liquid crystal module screen is identified to have defects, the marker pen is driven to move downward by controlling the electric push rod to work, so that the ink on the marker pen is smeared on the surface of the liquid crystal module screen, and the marking of the liquid crystal module screen is realized.

[0031] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A liquid crystal module screen detection device, characterized by, The utility model relates to a kind of liquid crystal screen automatic marking device, including: Rack (1); First drive belt equipment and second drive belt equipment, first drive belt equipment and second drive belt equipment are mounted on rack (1);First drive belt equipment includes first drive belt (201) and the first power component for driving first drive belt (201) movement; First visual camera (51) and second visual camera (52), first visual camera (51) and second visual camera (52) are mounted on rack (1); Multiple liquid crystal screen placing mechanisms, multiple liquid crystal screen placing mechanisms are mounted on the outer periphery of first drive belt (201);Liquid crystal screen placing mechanism includes liquid crystal screen placing seat (4) and cover plate (11);Between liquid crystal screen placing seat (4) and first drive belt (201), support (15) is connected, and placing groove (401) is opened on liquid crystal screen placing seat (4), cover plate (11) is slidably installed on liquid crystal screen placing seat (4), and cover plate (11) is connected with elastic reset component between liquid crystal screen placing seat (4);Mounting bracket (6) is connected on liquid crystal screen placing seat (4), push rod (10) is slidably installed on mounting bracket (6), and drive assembly is installed on mounting bracket (6), and drive assembly is connected with push rod (10);The conveying end side of first drive belt (201) is provided with U-shaped plate (19), U-shaped plate (19) is connected with rack (1), and the upper end side of push rod (10) is connected with inclined plate (191).

2. The liquid crystal module screen detection device according to claim 1, wherein, Rack (1) is provided with first electric push rod (161) and second electric push rod (162), and the output shaft of first electric push rod (161) and second electric push rod (162) is respectively connected with first marker pen (171) and second marker pen (172), and first marker pen (171) and second marker pen (172) are located above first drive belt equipment and second drive belt equipment respectively.

3. The liquid crystal module screen detection device of claim 1, wherein, Elastic reset component includes guide rod (13) and spring (14), and connecting slider (12) is connected on cover plate (11), guide rod (13) is arranged on the side of liquid crystal screen placing seat (4), connecting slider (12) is slidably arranged on guide rod (13), and spring (14) is sleeved and installed on guide rod (13).

4. The liquid crystal module screen detection device according to claim 3, wherein, Drive assembly includes first rack (71), second rack (72), first gear (81), second gear (82) and mounting shaft (9), first rack (71) is slidably arranged on mounting bracket (6) and is connected with push rod (10), second rack (72) is connected with cover plate (11), mounting shaft (9) is rotatably installed on mounting bracket (6), first gear (81) and second gear (82) are both installed on mounting shaft (9), and first rack (71) and second rack (72) are respectively meshed with first gear (81) and second gear (82).

5. The liquid crystal module screen detection device of claim 1, wherein, Second drive belt equipment includes second drive belt (301) and the second power component for driving second drive belt (301) movement, and the outer periphery of second drive belt (301) is provided with sponge (20).

6. The liquid crystal module screen detection device according to claim 5, wherein, The inner side upper end of the first transmission belt (201) and the inner side upper end of the second transmission belt (301) are both provided with horizontal support plates (18) connected with the rack (1).

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