CN115078390A - Based on automatic partial back visual inspection machine is judged device again - Google Patents
Based on automatic partial back visual inspection machine is judged device again Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/912—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers provided with drive systems with rectilinear movements only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/914—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers provided with drive systems incorporating rotary and rectilinear movements
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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Abstract
本发明涉及公开了一种基于自动偏贴后外观检查机复判装置，属于液晶屏检测复判技术领域，包括液晶屏获取及移动机构、吸附平台、翻转升降机构和人工复判移载，所述翻转升降机构与所述吸附平台连接，用于驱使所述吸附平台向上或向下翻转至水平，所述液晶屏获取及移动机构用于获取液晶屏，并移动放置在向上翻转至水平的所述吸附平台的上端，所述人工复判移载可移动的安装在所述翻转升降机构侧方，并可移动至所述吸附平台的下方，或移动远离，所述人工复判移载用于承接液晶屏并辅助人工检测复判。优点：结构设计合理，操作使用方便，能有效降低复判阶段的人力成本，提高生产效率，减少人员调试周期，有助于降低液晶屏屏幕破损率。
The invention relates to and discloses a re-judgment device based on an appearance inspection machine after automatic offset sticking, which belongs to the technical field of liquid crystal screen detection and re-judgment. The inversion lifting mechanism is connected with the adsorption platform, and is used to drive the adsorption platform to be turned up or down to the horizontal, and the liquid crystal screen acquisition and movement mechanism is used to acquire the liquid crystal screen, and move and place it on any place that is flipped upward to the horizontal. On the upper end of the adsorption platform, the manual re-judgment transfer is movably installed on the side of the flipping and lifting mechanism, and can be moved to the bottom of the adsorption platform, or moved away from it. The manual re-judgment transfer is used for Undertake LCD screen and assist manual detection and re-judgment. Advantages: Reasonable structure design, convenient operation and use, can effectively reduce the labor cost in the rejudgment stage, improve production efficiency, reduce personnel debugging cycle, and help reduce the breakage rate of LCD screens.
Description
Technical Field
The invention relates to the technical field of liquid crystal display detection and re-judgment, in particular to a re-judgment device based on an automatic offset appearance inspection machine.
Background
In the liquid crystal industry, after a liquid crystal screen is automatically attached in a biased mode, for defective products detected by equipment, secondary detection and re-judgment need to be carried out manually, and products without defects can be subjected to subsequent processes, so that the following problems are solved:
1) the labor cost of manpower is high;
2) the production line has low production efficiency;
3) defects caused by manual contact occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing a re-judging device based on an automatic deflection-attached appearance inspection machine, and effectively overcoming the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
the utility model provides a judge device again based on automatic back visual inspection machine that partially pastes, acquire and moving mechanism including the LCD screen, adsorption platform, upset elevating system and artifical judge move and carry, above-mentioned upset elevating system is connected with above-mentioned adsorption platform for order about above-mentioned adsorption platform upwards or overturn to the level downwards, above-mentioned LCD screen acquires and moving mechanism is used for acquireing the LCD screen, and the removal is placed in the upper end of upwards overturning to the horizontally above-mentioned adsorption platform, above-mentioned artifical judge move and carry mobilizable installation in above-mentioned upset elevating system side, and can move to the below of above-mentioned adsorption platform, or remove and keep away from, above-mentioned artifical judge move and carry and be used for accepting the LCD screen and supplementary artifical detection judge.
On the basis of the technical scheme, the invention can be further improved as follows.
The liquid crystal screen acquisition and moving mechanism, the overturning lifting mechanism and the manual re-judgment transfer are respectively arranged on the frame, and the liquid crystal screen acquisition and moving mechanism and the manual re-judgment transfer are respectively positioned at two ends of the adsorption platform.
Furthermore, the liquid crystal screen acquiring and moving mechanism comprises a triaxial portal frame linear module and an adsorption frame, the triaxial portal frame linear module is installed at the upper end of one end of the rack, the adsorption frame is of a horizontally arranged frame structure and is connected with the moving end of the triaxial portal frame linear module, a plurality of first suckers are arranged on the adsorption frame at intervals, and the adsorption ends of the first suckers all extend downwards to the lower end of the adsorption frame.
Further, the turnover lifting mechanism comprises a lifting assembly and two groups of rotating mechanisms, the two groups of rotating mechanisms are respectively arranged on two sides of the adsorption platform, the driving ends of the two groups of rotating mechanisms are respectively in transmission connection with two sides of the adsorption platform, the two groups of rotating mechanisms are used for synchronously driving the adsorption platform to rotate so as to enable the adsorption platform to turn upwards or downwards, and the lifting assembly is connected with the two groups of rotating mechanisms and is used for driving the two groups of rotating mechanisms to move upwards and downwards.
Further, the lifting assembly comprises two groups of lifting modules, the two groups of lifting modules are respectively installed on two sides of the rack and are respectively connected with the two groups of rotating mechanisms in a one-to-one correspondence mode, and the two groups of lifting modules are used for synchronously driving the two groups of rotating mechanisms to move up and down.
Further, the adsorption platform comprises a rectangular frame and a plurality of second suckers, the second suckers are respectively assembled on the frame, and the adsorption ends of the second suckers respectively extend to one side of the frame.
Further, a first linear moving mechanism is arranged at the lower part of the other end of the rack, the manual re-judgment transfer is assembled on the linear moving mechanism, and the linear moving mechanism is used for driving the manual re-judgment transfer to move linearly to the position below the adsorption platform or move away from the adsorption platform.
Further, the manual re-judging transfer device comprises a backlight platform, a supporting bottom frame, a turnover frame, a backlight source and a turnover mechanism, wherein one end of the turnover frame is hinged to one end of the upper end of the supporting bottom frame, the turnover mechanism is assembled in the supporting bottom frame and connected with the lower end of the turnover frame and used for driving the turnover frame to turn upwards to incline or turn downwards to horizontally fall on the upper end of the supporting bottom frame, the backlight platform is assembled at the upper end of the turnover frame, the backlight source is assembled on the upper surface of the backlight platform, an upwards-protruding supporting structure is arranged on the side, corresponding to the hinged side of the turnover frame and the supporting bottom frame, of the backlight platform, and the supporting structure is used for supporting the edge of a liquid crystal screen.
The first linear moving device is assembled on the turnover frame, a driving end of the first linear moving device is connected with the backlight platform, and the first linear moving device is used for driving the backlight platform to move towards two ends of the backlight platform in a linear mode.
Further, the turnover mechanism comprises a first linear moving device and a connecting rod, the first linear moving device is assembled in the rack, one end of the connecting rod is movably connected with the driving end of the first linear moving device, and the other end of the connecting rod is movably connected with the turnover frame.
The invention has the beneficial effects that: structural design is reasonable, and operation convenient to use can effectively reduce the human cost in the stage of retrying, improves production efficiency, reduces personnel's debugging cycle, helps reducing LCD screen breakage rate.
Drawings
FIG. 1 is a schematic structural diagram of a device for re-judging an appearance inspection machine based on automatic offset of the present invention;
FIG. 2 is a schematic structural diagram of a liquid crystal display screen acquiring and moving mechanism in an automatic offset-based visual inspection machine re-judging device according to the present invention;
FIG. 3 is a schematic structural diagram of a turnover lifting mechanism in the automatic offset-based visual inspection machine re-determination device according to the present invention;
FIG. 4 is a schematic diagram of a manual re-judging transfer structure in the re-judging device based on the automatic post-deflection visual inspection machine according to the present invention;
FIG. 5 is a side view of the structure of manual re-judging transfer in the re-judging device of the appearance inspection machine after automatic offset according to the present invention;
FIG. 6 is a schematic structural diagram of a manual re-judgment transfer device of an automatic post-deflection visual inspection machine without a backlight platform according to the present invention;
fig. 7 is a side view of the structure of the manual re-judging transfer-removed backlight platform in the re-judging device based on the automatic post-deflection visual inspection machine according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a liquid crystal screen acquisition and movement mechanism; 2. an adsorption platform; 3. a turnover lifting mechanism; 4. manual re-judgment transfer; 5. a frame; 11. a triaxial portal frame linear module; 12. an adsorption rack; 13. a first suction cup; 21. a frame; 22. a second suction cup; 31. a rotation mechanism; 32. a lifting module; 41. a backlight platform; 42. a support chassis; 43. a roll-over stand; 44. a backlight light source; 45. a turnover mechanism; 46. a first linear motion device; 411. a support structure; 451. a second linear moving device; 452. a connecting rod.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example (b): as shown in fig. 1, the device for re-judging based on an automatic post-deflection visual inspection machine of the present embodiment includes a liquid crystal screen obtaining and moving mechanism 1, an adsorption platform 2, a turnover lifting mechanism 3 and a manual re-judging transfer mechanism 4, wherein the turnover lifting mechanism 3 is connected to the adsorption platform 2 and is used for driving the adsorption platform 2 to turn upwards or downwards to be horizontal, the liquid crystal screen obtaining and moving mechanism 1 is used for obtaining a liquid crystal screen and is movably disposed at the upper end of the adsorption platform 2 which turns upwards to be horizontal, the manual re-judging transfer mechanism 4 is movably mounted at the side of the turnover lifting mechanism 3 and can be moved to the lower side of the adsorption platform 2 or moved away from the same, and the manual re-judging transfer mechanism 4 is used for receiving the liquid crystal screen and assisting manual detection and re-judgment.
The operation process is as follows:
after the liquid crystal screen obtaining and moving mechanism 1 obtains the liquid crystal screen, the liquid crystal screen is moved to be close to the position of the adsorption platform 2 (at the moment, the turnover lifting mechanism 3 keeps the adsorption platform 2 to be turned upwards to be in a horizontal state), then the liquid crystal screen is placed on the adsorption platform 2 and is adsorbed and fixed by the adsorption platform 2, then the liquid crystal screen obtaining and moving mechanism 1 is moved back, next, the turnover lifting mechanism 3 drives the adsorption platform 2 to be turned downwards 180 degrees, so that the liquid crystal screen faces downwards, then, the manual re-judging transfer machine 4 is moved to be below the adsorption platform 2, the turnover lifting mechanism 3 drives the liquid crystal screen to descend until the liquid crystal screen is placed on the manual re-judging transfer machine 4, then, the adsorption on the liquid crystal screen is released, so that the liquid crystal screen stably falls on the manual re-judging transfer machine 4, and after that the manual re-judging transfer machine 4 drives the liquid crystal screen to be moved to withdraw (move back) to a re-judging position, next, the secondary detection and re-judgment of the liquid crystal screen can be manually carried out, the whole device is reasonable in structural design, convenient to operate and use, capable of effectively reducing the labor cost in the re-judgment stage, capable of improving the production efficiency, capable of reducing the debugging period of personnel and beneficial to reducing the breakage rate of the liquid crystal screen.
In a preferred embodiment, the apparatus further includes a frame 5, the liquid crystal panel acquisition and movement mechanism 1, the inversion and lifting mechanism 3, and the manual judgment transfer unit 4 are respectively mounted on the frame 5, and the liquid crystal panel acquisition and movement mechanism 1 and the manual judgment transfer unit 4 are respectively located at both ends of the adsorption platform 2.
Among the above-mentioned embodiment, whole device integrated design is in a frame 5, and the wholeness is better, integrates the degree height to, upset elevating system 3 and adsorption platform 2 are located the LCD screen and acquire and moving mechanism 1 and artifical re-judgement moves between 4, the good linking of easy three process.
As a preferred embodiment, as shown in fig. 2, the liquid crystal panel obtaining and moving mechanism 1 includes a three-axis gantry linear module 11 and an adsorption frame 12, the three-axis gantry linear module 11 is mounted on an upper end of one end of the frame 5, the adsorption frame 12 is a horizontally disposed frame structure and is connected to a moving end of the three-axis gantry linear module 11, a plurality of first adsorption trays 13 are disposed at intervals on the adsorption frame 12, and adsorption ends of the first adsorption trays 13 all extend downward to a lower end of the adsorption frame 12.
Among the above-mentioned embodiment, LCD screen acquires and moving mechanism 1 adopts prior art's linear module of triaxial portal frame 11, can drive first sucking disc 13 and move on the both ends of frame 5, both sides and upper and lower direction, and rethread first sucking disc 13 firmly hangs down the absorption LCD screen to realize effectively acquireing and removing of LCD screen and transport, overall design is very reasonable, and operation and use are more convenient.
In the actual loose process, still be provided with the LCD screen transfer chain in the one end of frame 5, this LCD screen transfer chain is used for the slurry LCD screen to carry to the regional below removal region in first sucking disc 13 place, and the removal of the linear module 11 of triaxial portal frame is deuterogamied, realizes the acquireing of first sucking disc 13 to the LCD screen, and whole process need not artifical manual participation, and efficiency is higher.
As a preferred embodiment, as shown in fig. 3, the turning lifting mechanism 3 includes a lifting assembly and two sets of rotating mechanisms 31, the two sets of rotating mechanisms 31 are respectively disposed at two sides of the adsorption platform 2, and driving ends of the two sets of rotating mechanisms 31 are respectively in transmission connection with two sides of the adsorption platform 2, the two sets of rotating mechanisms 31 are used for synchronously driving the adsorption platform 2 to rotate, so that the adsorption platform 2 is turned upwards or downwards, and the lifting assembly is connected with the two sets of rotating mechanisms 31 for driving the two sets of rotating mechanisms 31 to move upwards and downwards.
Among the above-mentioned embodiment, adsorption platform 2 "centre gripping" is between two sets of rotary mechanism 31, and the drive end of two sets of rotary mechanism 31 respectively with adsorption platform 2's both sides side end swivelling joint, the operation in-process, two sets of rotary mechanism 31 synchronous revolution can order about adsorption platform 2 rotatory to realize adsorption platform 2's upset from top to bottom, realize the operation of "turn-over" of LCD screen, whole reasonable in design, easy operation, swift.
In this embodiment, the rotating mechanism 31 may be a servo motor of the related art.
Generally, a strip-shaped connecting beam is connected between the driving ends of the two groups of rotating mechanisms 31, the adsorption platform 2 is assembled and fixed on the connecting beam, and the two groups of rotating mechanisms 31 synchronously operate to drive the connecting beam and the adsorption platform 2 to rotate so as to realize the turning over of the liquid crystal screen.
In a preferred embodiment, the lifting assembly includes two sets of lifting modules 32, the two sets of lifting modules 32 are respectively installed on two sides of the frame 5 and respectively connected to the two sets of rotating mechanisms 31 in a one-to-one correspondence, and the two sets of lifting modules 32 are configured to synchronously drive the two sets of rotating mechanisms 31 to move up and down.
In the above embodiment, the lifting assembly adopts the mode of synchronous operation of the two groups of lifting modules 32 to drive the continuous-taking care rotating mechanism 31 to lift, the whole structure is reasonable in design, the spatial layout is suitable for the rotating operation of the adsorption platform 2, and the operation process is stable and simple.
Generally, the lifting module 32 can be a linear module in the prior art, and the specific model is reasonably selected according to actual use requirements.
In a preferred embodiment, the suction platform 2 includes a rectangular parallelepiped frame 21 and a plurality of second suction pads 22, the plurality of second suction pads 22 are respectively mounted on the frame 21, and suction ends of the second suction pads 22 respectively extend to one side of the frame 21.
Among the above-mentioned embodiment, adsorption platform 2 adopts simpler cuboid type frame construction, realizes the absorption to the LCD screen through setting up a plurality of second sucking discs 22 on frame construction, and the adsorption port department of a plurality of second sucking discs 22 is in the coplanar, and overall structure design is simple.
In a preferred embodiment, a first linear moving mechanism (denoted by M in the figure) is provided at a lower portion of the other end of the frame 5, the manual judging and transferring device 4 is mounted on the linear moving mechanism, and the linear moving mechanism is configured to linearly move the manual judging and transferring device 4 to a position below the adsorption platform 2 or to move away from the adsorption platform.
In the above embodiment, the manual re-judgment transfer of the whole body of the 4 th movable platform is realized by the first linear moving mechanism, specifically, the first linear moving mechanism can comprise a linear moving module and a plurality of guide rails in the prior art, the first linear moving mechanism is installed at the bottom of the other end of the rack 5, the guide rails are distributed on two sides of the linear moving module, the bottom of the manual re-judgment transfer of the 4 th movable platform is arranged on a slide block which is connected with the guide rails in a sliding manner, the bottom of the manual re-judgment transfer of the 4 th movable platform is fixedly connected with the upper end of a moving execution mechanism (slide block) of the linear moving module, the linear moving module drives the manual re-judgment transfer of the 4 th movable platform to move along the guide rails, so that the manual re-judgment transfer of the 4 th movable platform is close to or far away from the adsorption platform 2, the whole operation process is relatively stable, the manual input is reduced by automation, and the operation efficiency is improved.
As a preferred embodiment, as shown in fig. 4, 5, 6 and 7, the manual judging transfer device 4 comprises a backlight platform 41, a supporting bottom frame 42, a turnover frame 43, a backlight light source 44 and a turnover mechanism 45, one end of the turning frame 43 is hinged with one end of the upper end of the supporting chassis 42 (hinged through a rotating shaft, L in the figure indicates a rotating shaft), the turning mechanism 45 is assembled in the supporting chassis 42, and is connected with the lower end of the roll-over stand 43 for driving the roll-over stand 43 to roll over upwards to incline, or turned down to fall horizontally on the upper end of the supporting bottom frame 42, the backlight platform 41 is assembled on the upper end of the turning frame 43, the backlight source 44 is mounted on the upper surface of the backlight platform 41, a support structure 411 protruding upwards is provided on the side of the backlight platform 41 corresponding to the hinge joint of the flip frame 43 and the support bottom frame 42, and the support structure 411 is used for supporting the edge of the liquid crystal panel.
In the above embodiment, in the operation process, the supporting bottom frame 42 is moved to the lower side of the adsorption platform 2, the liquid crystal screen is placed on the adsorption platform 2 after descending, and is placed on the upper end of the backlight platform 41, and one side of the liquid crystal screen is close to the supporting structure 411, then, the supporting bottom frame 42 is moved and withdrawn, next, the turnover mechanism 45 drives the turnover frame 43 to upwards turn over to incline (the liquid crystal screen is inclined by about 70 degrees at the highest), in the process, the backlight light source 44 is turned on, the light source irradiates the liquid crystal screen, the operator can manually detect and re-judge the liquid crystal screen under the condition that the liquid crystal screen is polished, and the whole manual re-judging transfer device 4 can enable the liquid crystal screen to turn over to be in a vertical state, so that the detection of the operator is facilitated.
In this embodiment, the supporting structure 411 includes a plurality of supporting blocks, the supporting blocks are distributed at intervals along the edge of the backlight platform 41 corresponding to the hinged side of the turning frame 43 and the supporting bottom frame 42, and when the backlight platform 41 is turned to be inclined, the supporting blocks are located at the downward end of the backlight platform 41.
As a preferred embodiment, the backlight module further comprises a first linear moving device 46, wherein the first linear moving device 46 is mounted on the turning frame 43, a driving end of the first linear moving device 46 is connected to the backlight platform 41, and the first linear moving device 46 is configured to drive the backlight platform 41 to move linearly towards two ends of the backlight platform 41.
In the above embodiment, the design of the first linear moving device 46 enables the backlight platform 41 to move towards the two ends of the turning frame 43, that is, after the liquid crystal display is turned to be in the "vertical" state, the first linear moving device 46 moves to enable the liquid crystal display to move vertically to adjust the height, which is beneficial to the detection and re-judgment of the worker on the upper portion of the display screen.
In this embodiment, the first linear moving device 46 may be an existing linear module, two sides of the linear module are respectively provided with a guide rail, the upper end of the moving linear mechanism of the linear module and the upper ends of the guide rails at two sides are respectively provided with a plate-shaped mounting frame (denoted by a in the figure), and the lower end of the backlight platform 41 is connected and fixed with the mounting frame.
In a preferred embodiment, the turnover mechanism 45 includes a second linear motion device 451 and a link 452, the second linear motion device 451 is assembled to the frame 5, and one end of the link 452 is movably connected to a driving end of the second linear motion device 451, and the other end is movably connected to the roll-over stand 43.
Among the above-mentioned embodiment, tilting mechanism 45 adopts and becomes the structural style that promotes the roll-over stand 43 upset through connecting rod 452 with linear displacement, and specifically, second rectilinear movement device 451 orders about connecting rod 452 and removes towards the both ends direction that supports chassis 42 to drive connecting rod 452 and present different inclination, connecting rod 452 promotes the roll-over stand 43 upset from top to bottom again, whole structural design is reasonable, easy operation, convenience.
In this embodiment, the second linear moving device 451 may be a screw transmission mechanism of the prior art, a nut seat of the screw transmission mechanism is hinged to the lower end of the connecting rod 452, an upper end of the connecting rod 452 is hinged to the lower end of the roll-over stand 43, specifically, the screw transmission mechanism includes a screw rod, a nut seat screwed on the screw rod, and a motor, the screw rod extends toward two ends of the supporting bottom frame 42, the two ends of the screw rod are assembled on the supporting bottom frame 42 through a bearing seat, and the motor is in transmission connection with one end of the screw rod.
In this embodiment, the backlight platform 41 is a rectangular panel structure, the backlight source 44 is also a rectangular sheet panel light source (LED), the two side edges of the upper surface of the backlight platform 41 are respectively provided with a linear module a extending towards the two ends thereof, one end edge of the upper surface of the backlight platform 41 is provided with a linear module B extending towards the two sides thereof, the other end edge of the upper surface of the backlight platform 41 is provided with a linear module C extending towards the two sides thereof, one end edge of the backlight platform 41 is provided with a strip-shaped flat shading cloth box along the edge thereof (the shading cloth box is provided with a scroll arranged along the length direction thereof, the scroll is wound with shading cloth, the edge of the shading cloth is pulled out from the strip-shaped gap of the side end of the shading cloth box and connected with the linear modules a at the two sides), the two side linear modules a can drive the corresponding shading cloth to be pulled out of the peripheral area covering one end edge of the liquid crystal display screen, similarly, the two sides of the backlight platform 41 are respectively provided with the shade cloth boxes extending along the two ends thereof, the shade cloth boxes on the two sides are also pulled out with the shade cloth, the two ends of the shade cloth on the two sides are respectively connected with the two linear modules B or the two linear modules C on the corresponding sides, the two linear modules B or the two linear modules C can synchronously run to pull out the corresponding shade cloth, so as to shade the peripheral areas on the two sides of the liquid crystal screen, and the whole design can shade the vacant parts around the liquid crystal screen in the re-judging process (so as to avoid the backlight source 44 from irradiating the vacant parts to influence the vision of the detection personnel).
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
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