CN209858453U - Liquid crystal display panel inspection machine - Google Patents
Liquid crystal display panel inspection machine Download PDFInfo
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- CN209858453U CN209858453U CN201920599458.1U CN201920599458U CN209858453U CN 209858453 U CN209858453 U CN 209858453U CN 201920599458 U CN201920599458 U CN 201920599458U CN 209858453 U CN209858453 U CN 209858453U
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Abstract
The utility model relates to a liquid crystal display panel inspection machine, include: the machine body comprises a main control chamber and an inspection chamber which is light-tight and provided with a communication port on the side surface; the operating platform is arranged on one side of the machine body, which is provided with the communicating port; the linear transmission mechanism is arranged in the communication port in a penetrating way, one part of the linear transmission mechanism is arranged on the operating platform to form a loading and unloading area, and the other part of the linear transmission mechanism is arranged in the inspection chamber to form a detection area and is used for transmitting the liquid crystal panel to and fro between the loading and unloading area and the detection area; a panel lighting mechanism arranged on the linear transmission mechanism to light the liquid crystal panel; the image acquisition mechanism is arranged in the examination room and comprises a first camera arranged above the detection area to acquire a first front-view image of the liquid crystal panel, a second camera arranged beside the first camera to acquire a second front-view image of the liquid crystal panel, at least one third camera arranged above the side of the detection area to acquire a side-view image of the liquid crystal panel and an illumination device arranged beside the detection area. The utility model discloses a liquid crystal display panel inspection machine is accurate reliable and efficient.
Description
Technical Field
The utility model relates to an industrial detection technical field especially relates to a liquid crystal display panel inspection machine.
Background
Nowadays, liquid crystal panels are widely used in mobile phones, notebooks, televisions and other displayable devices. The production process of the liquid crystal panel is formed by a plurality of complex processes, any one production process has poor quality and flows into a subsequent process, rework or scrapping of the whole machine can be caused, the manufacturing cost of the displayable equipment is directly increased, and therefore the detection of the yield of a key process is of great importance.
The traditional liquid crystal panel inspection mostly adopts a manual inspection mode, and the manual inspection has a plurality of defects: the labor cost is saved and increased, so that the cost of manufacturers is increased; in the inspection operation, the eyes of the operator are damaged by the light of the liquid crystal panel contacted with the eyes for a long time; the reliability of the manual examination is affected by the emotional changes, physical condition, and proficiency of the operator.
With the development of industrial automation and machine vision technologies, machines and equipment replacing manual inspection work are designed in the industry to inspect liquid crystal panels, specifically, an industrial camera is used to photograph the liquid crystal panels, and then defects of the liquid crystal panels are identified and judged according to the acquired images. However, in the process of inspecting the liquid crystal panel, the traditional liquid crystal panel inspection machine irradiates the liquid crystal panel with external light, so that the condition of the panel cannot be truly reflected by a shot image, and an inspection result is influenced; in addition, LCD panel's defect roughly includes appearance defect, dotted line defect and Mura defect, because machine vision structural design's limitation, all defects can not be caught comprehensively to traditional inspection board, cause to carry out different defect detection to same block of LCD panel and need detect the processing many times to this LCD panel, waste time and energy. Therefore, the traditional liquid crystal panel inspection machine cannot well replace manual inspection due to the reasons that the detection accuracy cannot meet the requirements, the detection efficiency is low and the like, and is difficult to reliably apply to industrial detection.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a liquid crystal display panel inspection machine aims at solving traditional liquid crystal display panel inspection machine and detects not enough and detection efficiency low scheduling problem.
An LCD panel inspection machine, comprising:
the device comprises a machine body, a control device and a control system, wherein the machine body comprises a main control chamber for arranging the control processing system and a lightproof inspection chamber, and a communication port is formed in one side surface of the inspection chamber;
the operating table is arranged on the side of the machine body, on which the communication port is formed;
the linear transmission mechanism is arranged in the communication port in a penetrating way, one part of the linear transmission mechanism is arranged on the operating platform to form a loading and unloading area, the other part of the linear transmission mechanism is arranged in the inspection chamber to form a detection area, and the linear transmission mechanism is used for transmitting a jig provided with a liquid crystal panel from the loading and unloading area to the detection area or transmitting the jig back to the loading and unloading area from the detection area;
the panel lighting mechanism is arranged on the linear transmission mechanism and used for lighting a liquid crystal panel in a jig on the linear transmission mechanism; and
an image acquisition mechanism, image acquisition mechanism set up in the inspection chamber, image acquisition mechanism including one set up in the top department of detection zone is used for gathering the first orthographic view image of liquid crystal display panel and send to control processing system's first camera, one set up in the side department of first camera is used for gathering the second orthographic view image of liquid crystal display panel and send to control processing system's second camera, at least one set up in the side top department of detection zone is used for gathering the side view image of liquid crystal display panel and send to control processing system's third camera and one set up in the side department of detection zone is used for supplying the lighting device that detects the illumination and use.
In some embodiments, the linear transmission mechanism includes: a base; the first transmission device comprises a first horizontal carrying module fixed on the base, a first lifting module connected with the first horizontal carrying module and driven horizontally by the first horizontal carrying module, and a first bearing plate connected with the first lifting module and driven vertically by the first lifting module; and the second transmission device comprises a second horizontal carrying module which is fixed on the base and is arranged in parallel with the first horizontal carrying module, a second lifting module which is connected with the second horizontal carrying module and is driven by the second horizontal carrying module horizontally, and a second bearing plate which is connected with the second lifting module and is driven by the second lifting module vertically.
Further, the movement axes of the first bearing plate and the second bearing plate in the horizontal direction are coaxial.
In some embodiments, the first horizontal carrying module comprises a first horizontal guide rail and a first horizontal driving device, the first horizontal guide rail is fixed on the base, and the first horizontal driving device is connected with the first lifting module to drive the first lifting module to slide along the first horizontal guide rail; the second horizontal carrying module comprises a second horizontal guide rail and a second horizontal driving device, the second horizontal guide rail is fixed on the base, and the second horizontal driving device is connected with the second lifting module to drive the second lifting module to slide along the second horizontal guide rail; the first lifting module comprises a first vertical movement base and a first lifting driving device, the first vertical movement base is arranged on the first horizontal guide rail, and the first lifting driving device is connected with the first bearing plate so as to drive the first bearing plate to move up and down along the first vertical movement base; the second lifting module comprises a second vertical movement base and a second lifting driving device, the second vertical movement base is arranged on the second horizontal guide rail, and the second lifting driving device is connected with the second bearing plate to drive the second bearing plate to move up and down along the second vertical movement base.
In some embodiments, the panel lighting mechanism includes two panel lighting modules connected to the control processing system, and the two panel lighting modules are respectively disposed on the jigs of the first supporting plate and the second supporting plate.
In some embodiments, the first camera and the second camera are fixed above the detection area by a third lifting module and can move up and down by the driving of the third lifting module.
In some embodiments, the image capturing mechanism includes two third cameras, and the two third cameras are symmetrically disposed above the detection area through a fixed mounting column.
In some embodiments, the lighting device includes two light sources connected to the control processing system, and the two light sources are symmetrically disposed at two sides of the detection area.
In some embodiments, a code scanning device is further disposed on the body, and the code scanning device is connected to the control processing system and is configured to scan codes on the liquid crystal panel.
In some specific embodiments, the machine body is further provided with an alarm device, and the alarm device is connected with the control processing system and used for reminding an abnormality.
In the utility model, the inspection chamber in the liquid crystal panel inspection machine is lightproof, the external light can not enter the inspection chamber, when in work, the liquid crystal panel is transmitted from the outside of the inspection chamber to the inside of the inspection chamber or from the inside of the inspection chamber to the outside of the inspection chamber through the straight line transmission mechanism, the liquid crystal panel is lightened through the panel lightening mechanism, when the liquid crystal panel is sent to the inspection region of the inspection chamber, the illuminating device in the image acquisition mechanism is turned on for illumination, the first camera, the second camera and the third camera in the image acquisition mechanism respectively acquire the first front-view image, the second front-view image and the side-view image of the liquid crystal panel to send to the control processing system, the control processing system respectively detects the appearance and the point line defect, the front-view mura defect and the side-view mura defect of the liquid crystal panel according to the first front-view image, the second front-view image and the side-view image, the detection efficiency is high, the interference of external light is avoided, and the detection is more accurate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a structural diagram of an lcd panel inspection machine according to an embodiment of the present invention;
fig. 2 is a partial structural view of a liquid crystal panel inspection machine according to an embodiment of the present invention;
fig. 3 is an enlarged view of a structure of a linear transmission mechanism in the liquid crystal panel inspection machine according to an embodiment of the present invention;
fig. 4 is an enlarged side view of a first horizontal transfer module in the liquid crystal panel inspection machine according to an embodiment of the present invention;
fig. 5 is an enlarged side view of a first lifting module in an lcd panel inspection machine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1 to 3, fig. 1 is a structural diagram of a liquid crystal panel inspection machine according to an embodiment of the present invention, fig. 2 is a structural diagram of a part of a liquid crystal panel inspection machine according to an embodiment of the present invention, and fig. 3 is a structural enlarged view of a linear transmission mechanism in a liquid crystal panel inspection machine according to an embodiment of the present invention. In this embodiment, the lcd panel inspection machine includes a machine body 1, an operation table 2, a linear transmission mechanism 3, a panel lighting mechanism 4 and an image acquisition mechanism, wherein the machine body 1 includes a main control chamber 10 for setting a control processing system and an opaque inspection chamber 11 for implementing the lcd panel inspection, and a communication port 110 is disposed at a side of the inspection chamber 11; the operation table 2 is arranged at the side of the machine body 1 provided with the communication port 110; the linear transmission mechanism 3 is arranged in the communication port 110 in a penetrating way, one part of the linear transmission mechanism 3 is arranged on the operation table 2 to form a loading and unloading area, the other part of the linear transmission mechanism 3 is arranged in the inspection chamber 11 to form a detection area, and the linear transmission mechanism 3 is used for transmitting the jig 36 provided with the liquid crystal panel from the loading and unloading area to the detection area or transmitting the jig from the detection area to the loading and unloading area; the panel lighting mechanism 4 is arranged on the linear transmission mechanism 3 and used for lighting the liquid crystal panel in the jig 36 on the linear transmission mechanism 3; the image acquisition mechanism is arranged in the examination room 11, and comprises a first camera 50 arranged above the detection area and used for acquiring a first front-view image of the liquid crystal panel transmitted to the examination room 11 and sending the first front-view image to the control processing system, a second camera 51 arranged beside the first camera 50 and used for acquiring a second front-view image of the liquid crystal panel transmitted to the examination room 11 and sending the second front-view image to the control processing system, a third camera 52 respectively arranged above two sides of the detection area and used for acquiring a side-view image of the liquid crystal panel transmitted to the examination room 11 and sending the side-view image to the control processing system, and an illuminating device 53 arranged beside the detection area and used for detection and illumination.
When the device works, a liquid crystal panel to be detected is arranged on a fixture 36 at a loading and unloading area, the liquid crystal panel is transmitted to a detection area in an inspection chamber 11 by a linear transmission mechanism 3, the liquid crystal panel is lightened by a panel lightening mechanism 4, a lighting device 53 in an image acquisition mechanism works and illuminates, meanwhile, a first camera 50, a second camera 51 and a third camera 52 in the image acquisition device respectively work and acquire a first front-view image, a second front-view image and a two-side-view image of the liquid crystal panel and respectively send the acquired first front-view image, second front-view image and two-side-view image to a control processing system, an image processing module in the control processing system carries out image analysis processing according to the acquired first front-view image, second front-view image and two-side-view image to obtain defect problems in the image, including appearance defect, point line defect and mura defect, thereby recognizing the problems of the liquid crystal panel. Because the inspection chamber 11 in the liquid crystal panel inspection machine is lightproof, outside light can not get into the inspection chamber 11, the influence of outside light on the defect detection of the liquid crystal panel is effectively avoided, and simultaneously, the liquid crystal panel inspection machine analyzes images respectively collected by the first camera 50, the second camera 51 and the third camera 52 to learn the appearance defect, the point line defect and the mura defect of the liquid crystal panel at one time, so that the quality evaluation of one liquid crystal panel is finished through one-time detection, the defect detection is more comprehensive, and the detection efficiency is favorably improved.
In this embodiment, referring to fig. 2, the main body 1 is rectangular, and the main control chamber 10 is disposed below the inspection chamber 11, and as can be understood by those skilled in the art, the control processing system in the main control chamber 10 generally includes an industrial control computer 100, an optical machine control box 101, a light source control box 102, and the like, which can control the liquid crystal panel inspection machine to implement the operations of controlling the transmission fixture 36, collecting images, analyzing and processing images, and the like, so as to ensure the completion of the detection. Of course, in other embodiments, the structural shape of the machine body 1 can also be designed according to actual needs.
Referring to fig. 3, in this embodiment, the linear transmission mechanism 3 includes a base 38, a first transmission device and a second transmission device, wherein the base 38 is in a plate shape, the first transmission device includes a first horizontal carrying module 30 fixed on the base 38, a first lifting module 31 connected with the first horizontal carrying module 30 and driven horizontally by the first horizontal carrying module 30, and a first supporting plate 32 connected with the first lifting module 31 and driven vertically by the first lifting module 31 for supporting a fixture 36; the second transmission device includes a second horizontal carrying module 33 fixed on the base 38 and disposed parallel to the first horizontal carrying module 30, a second lifting module 34 connected to the second horizontal carrying module 33 and driven horizontally by the second horizontal carrying module 33, and a second supporting plate 35 connected to the second lifting module 34 and driven vertically by the second lifting module 34 for supporting a fixture 36.
When the linear transport mechanism 3 is installed in the liquid crystal panel inspection machine, the linear transport mechanism 3 is fixed between the operation table 2 and the inspection chamber 11 through the base 38, wherein the first half parts of the first horizontal transport module 30 and the second horizontal transport module 33 on the base 38 are disposed in the loading and unloading area at the operation table 2, the second half parts of the first horizontal transport module 30 and the second horizontal transport module 33 are disposed in the inspection area in the inspection chamber 11, the first horizontal transport module 30 in the first transport device operates to move the first lifting module 31 connected thereto back and forth in the horizontal direction, the first lifting module 31 in the first transport device operates to move the first support plate 32 up and down in the vertical direction, the second horizontal transport module 33 in the second transport device operates to move the second lifting module 34 connected thereto back and forth in the horizontal direction, and the second lifting module 34 in the second transport device operates to move the second support plate 35 up and down in the vertical direction. During specific work, when the first lifting module 31 in the first transmission device drives the first bearing plate 32 to move to the loading and unloading area, the second lifting module 34 in the second transmission device drives the second bearing plate 35 to move to the detection area; when the first lifting module 31 in the first conveying device drives the first support plate 32 to move to the inspection area, the second lifting module 34 in the second conveying device drives the second support plate 35 to move to the loading and unloading area, and the first support plate 32 and the second support plate 35 are alternately conveyed inside and outside the inspection chamber 11, so that the jigs 36 arranged on the first support plate 32 and the jigs 36 arranged on the second support plate 35 are alternately conveyed along with the conveying, and the conveying of the liquid crystal panel can be realized.
Referring to fig. 3, in this embodiment, the first horizontal carrying module 30, the second horizontal carrying module 33, the first lifting module 31 and the second lifting module 34 are all implemented by a screw transmission device. Specifically, the first horizontal carrying module 30 includes a first horizontal guiding rail 300 and a first horizontal driving device 301, the first horizontal guiding rail 300 is fixed on the base 38, and the first horizontal driving device 301 is connected with the first lifting module 31 to drive the first lifting module 31 to slide along the first horizontal guiding rail 300.
In this embodiment, the structure of the second horizontal carrying module 33 is similar to that of the first horizontal carrying module 30, referring to fig. 3, the second horizontal carrying module 33 includes a second horizontal rail 330 and a second horizontal driving device 331, the second horizontal rail 330 is fixed on the base 38, and the second horizontal driving device 331 is connected with the second lifting module 34 to drive the second lifting module 34 to slide along the second horizontal rail 330.
Referring to fig. 3 and 5, fig. 5 is an enlarged side view of a structure of the first lifting module 31 in the liquid crystal panel inspection machine according to an embodiment of the present invention. In this embodiment, the first lifting module 31 includes a first vertical moving base 310 and a first lifting driving device 311, the first vertical moving base 310 is disposed on the first horizontal guiding rail 300, and the first lifting driving device 311 is connected to the first supporting plate 32 to drive the first supporting plate 32 to move up and down along the first vertical moving base 310.
In this embodiment, the structure of the second lifting module 34 is similar to that of the first lifting module 31, the second lifting module 34 includes a second vertical moving base 340 and a second lifting driving device 341, the second vertical moving base 340 is disposed on the second horizontal guiding rail 330, and the second lifting driving device 341 is connected to the second supporting plate 35 to drive the second supporting plate 35 to move up and down along the second vertical moving base 340.
Referring to fig. 4, fig. 4 is a side view of a structure of a first horizontal driving device 301 in an lcd panel inspection machine according to an embodiment of the present invention. In this embodiment, the first horizontal driving device 301 includes a first motor 3010 and a first lead screw 3011, the first lead screw 3011 is disposed in the first horizontal guiding rail 300, the first motor 3010 is connected to the first lead screw 3011, and the first vertical moving base 310 is fixed on the nut of the first lead screw 3011. Typically, the first motor 3010 is connected to the first lead screw 3011 through a first coupling 3012. When the horizontal conveying device works, the first motor 3010 drives the first lead screw 3011 to rotate, so that the first vertical moving base 310 fixed on the nut of the first lead screw 3011 slides along the first horizontal guide rail 300, and horizontal conveying is realized.
In this embodiment, the second horizontal driving device 331 is similar to the first horizontal driving device 301, and those skilled in the art can understand the structure of the second horizontal driving device 331, and detailed reference is not needed in the drawings. The second horizontal driving device 331 includes a second motor and a second lead screw, the second lead screw is disposed in the second horizontal guide rail 330, the second motor is connected to the second lead screw, and the second vertical moving base 340 is fixed on a nut of the second lead screw. Typically, the second motor is coupled to the second lead screw via a second coupling. During operation, the second motor drives the second lead screw to rotate, so that the second vertical moving base 340 fixed on the nut of the second lead screw slides along the second horizontal guide rail 330, thereby realizing horizontal transmission.
Referring to fig. 3 and 5, in this embodiment, the first lifting driving device 311 includes a third motor 3110 and a third screw 3111, the third screw 3111 is vertically disposed in the first vertical moving base 310, the third motor 3110 is connected to the third screw 3111, and the first supporting plate 32 is fixed on a nut of the third screw 3111. During operation, the third motor 3110 drives the third screw 3111 to rotate, so that the first supporting plate 32 fixed on the nut of the third screw 3111 moves up and down along the first vertical moving base 310, and the first supporting plate 32 is lifted and lowered accordingly.
Referring to fig. 3 and 5, in this embodiment, the first lifting driving device 311 further includes a first transmission device 3112, the third motor 3110 is connected to the third lead screw 3111 through the first transmission device 3112, wherein the first transmission device 3112 includes a first driving wheel 31120, a first synchronous belt 31121 and a first driven wheel 31122, the first driving wheel 31120 is connected to an output shaft of the third motor 3110, the first driven wheel 31122 is fixedly connected to one end of the third lead screw 3111, and the first driving wheel 31120 is connected to the first driven wheel 31122 through the first synchronous belt 31121.
In this embodiment, the second elevation driving device 341 has a structure similar to that of the first elevation driving device 311, and those skilled in the art can understand the structure of the second elevation driving device 341 and need not be labeled in detail in the drawings. The second lifting driving device 341 includes a fourth motor and a fourth lead screw, the fourth lead screw is vertically disposed in the second vertical moving base 340, the fourth motor is connected to the fourth lead screw, and the second supporting plate 35 is fixed on a nut of the fourth lead screw. During operation, the fourth motor drives the fourth screw rod to rotate, so that the second supporting plate 35 fixed on the nut of the fourth screw rod moves up and down along the second vertical motion base 340, and the second supporting plate 3533 realizes lifting adjustment accordingly.
In this embodiment, the second lifting driving device 341 further includes a second transmission device, the fourth motor is connected to the fourth lead screw through the second transmission device, the second transmission device includes a second driving wheel, a second synchronous belt and a second driven wheel, the second driving wheel is connected to an output shaft of the fourth motor, the second driven wheel is fixedly connected to one end of the fourth lead screw, and the second driving wheel is connected to the second driven wheel through the second synchronous belt.
In addition, in some preferred embodiments, to facilitate the control and adjustment of the positions of the first lifting module 31 and the second lifting module 34, referring to fig. 3, a plurality of first position detecting devices 302 for detecting the position of the first lifting module 31 are spaced apart from each other on the first horizontal rail 300, and a plurality of second position detecting devices for detecting the position of the second lifting module 34 are spaced apart from each other on the second horizontal rail 330. Accordingly, during operation, the control processing system of the liquid crystal panel inspection machine obtains the position information of the first lifting module 31 and the second lifting module 34 respectively collected by the first position detection device 302 and the second position detection device, and controls the first horizontal driving device 301 and the second horizontal driving device 331 to operate according to the position information of the first lifting module 31 and the second lifting module 34, so as to adjust the positions of the first lifting module 31 and the second lifting module 34, and achieve the purpose of reciprocating transmission of the liquid crystal panel.
In this embodiment, the first position detecting device 302 and the second position detecting device are both a photo sensor, which has fast response and high precision, and is suitable for use in detection and control.
In some preferred embodiments, to facilitate the control and adjustment of the positions of the first and second support plates 32 and 35, referring to fig. 3, a plurality of third position detection devices 312 for detecting the position of the first support plate 32 are spaced apart from each other on the first vertical moving base 310; similarly, a plurality of fourth position detecting devices 342 for detecting the position of the second support plate 35 are provided at intervals on the second vertical moving base 340. Accordingly, during operation, the control processing system of the liquid crystal panel inspection machine obtains the position information of the first supporting plate 32 and the second supporting plate 35 respectively acquired by the third position detecting device 312 and the fourth position detecting device 342, and controls the operation of the first lifting driving device 311 and the second lifting driving device 341 according to the position information of the first supporting plate 32 and the second supporting plate 35, so as to adjust the positions of the first supporting plate 32 and the second supporting plate 35, thereby facilitating transmission.
In this embodiment, the third position detecting device 312 and the fourth position detecting device 342 are both a photo sensor, which has fast response and high precision, and is suitable for use in detection and control.
In other embodiments, the first horizontal carrying module 30, the second horizontal carrying module 33, the first lifting module 31 and the second lifting module 34 may also be implemented by using cylinder driving, and those skilled in the art can understand the technical solution of implementing horizontal carrying and lifting sliding by using cylinder driving, and other structural design solutions such as the position detecting device may also refer to the design in the embodiment of implementing horizontal carrying and lifting sliding by using a screw transmission device, and will not be described in detail herein.
In this embodiment, in order to facilitate the capturing of the image of the liquid crystal panel, it is generally required that when the first and second support plates 32 and 35 are transferred from the outside of the apparatus to the inside of the apparatus for position exchange, the first support plate 32 is moved to a position where the second support plate 35 is located before, and the second support plate 35 is moved to a position where the first support plate 32 is located before, for this reason, referring to fig. 2 and 3, the movement axes of the first and second support plates 32 and 35 in the horizontal direction are coaxial, so that when the first and second support plates 32 and 35 are exchanged, the first support plate 32 is moved to a position of the second support plate 35, and the second support plate 35 is also moved to a position of the first support plate 32, that is, the first and second support plates 32 and 35 can be transferred to the same position, so as to facilitate the capturing of the image for detection.
Of course, in other embodiments, the positions and angles of the first camera 50, the second camera 51 and the third camera 52 in the examination room 11 can be designed to be controllably adjusted, so that the corresponding arrangement of the linear transmission mechanism 3 is sufficient.
In this embodiment, referring to fig. 3, the linear transmission mechanism 3 can alternately transport two jigs 36, i.e. two liquid crystal panels, and correspondingly, the panel lighting mechanism 4 includes two panel lighting modules 40 connected to the control processing system, the two panel lighting modules 40 are respectively disposed on the jigs 36 of the first supporting plate 32 and the second supporting plate 35, so that the liquid crystal panels in the jigs 36 of the first supporting plate 32 and the second supporting plate 35 can be respectively lighted by the panel lighting modules 40 thereon.
In this embodiment, referring to fig. 2, in order to conveniently adjust the positions of the first camera 50 and the second camera 51 in the vertical direction, the first camera 50 and the second camera 51 are fixed above the detection area through a third lifting module 54 and can be driven by the third lifting module 54 to move up and down, so that the positions of the first camera 50 and the second camera 51 can be adjusted according to actual needs. In the present application, the third lifting module 54 can be implemented by a screw transmission or a cylinder.
In this embodiment, referring to fig. 2, two third cameras 52 are disposed in the inspection chamber 11, and the two third cameras 52 are symmetrically disposed above the inspection area through a fixing mounting column 55, so as to collect the side-looking images of the left and right sides of the liquid crystal panel, respectively, and meet the requirement of side-looking mura defect inspection of the liquid crystal panel.
Of course, in other embodiments, more or fewer third cameras 52 may be disposed in the inspection chamber 11 to obtain side view images of the liquid crystal panel according to actual needs.
In this embodiment, referring to fig. 2, the lighting device 53 includes two light sources connected to the control processing system, the two light sources are symmetrically disposed at two sides of the detection area, and the light sources can be a bar light source, a circular light source or other light sources, so that the two sides of the detection area are respectively disposed with one light source, which can make the illumination of the detection area more uniform, and is beneficial to each camera in the examination room 11 to collect clear images.
In this application, since the inspection chamber 11 is easy to generate some static electricity to affect the detection of the liquid crystal panel, usually, an anti-static ion blower 7 is further disposed in the inspection chamber 11.
In this application, still be provided with a fan filter group 9 on the roof of inspection room 11, this fan filter group 9 provides the clean air at the uniform velocity in to down inspection room 11, avoids the air in the inspection room 11 to be full of the dust, and the dust adhesion can cause certain influence to the defect detection when liquid crystal display panel.
In order to distinguish each liquid crystal panel when detecting a plurality of liquid crystal panels, a code for marking the identity of the liquid crystal panel is usually adhered on the liquid crystal panel, and in order to obtain the code of the liquid crystal panel, referring to fig. 1, in this embodiment, a code scanning device 12 is further disposed on the machine body 1, and the code scanning device 12 is connected to the control processing system, and is used for scanning the code on the liquid crystal panel and transmitting the code to the control processing system, so that the control processing system can obtain the current code of the liquid crystal panel and correspondingly give a defect detection result.
In addition, because various problems or faults may occur during the operation of the liquid crystal panel inspection machine, in order to conveniently remind relevant operators to overhaul the machine when the machine has problems or faults, in this embodiment, referring to fig. 1, an alarm device 13 is further arranged on the machine body 1, and the alarm device 13 is connected with the control processing system and used for abnormal reminding.
In the present application, referring to fig. 1, a display 6 connected to the control processing system and used for displaying the detection information is further disposed on the outer side surface of the inspection room 11, and an operator can check the relevant detection data or detection result through the display 6, so as to conveniently know the quality condition of the currently detected liquid crystal panel.
In this application, referring to fig. 1, the console 2 is further provided with a keyboard box 22 for placing a keyboard, the keyboard is connected with the control processing system, and the keyboard can input control instructions to the control processing system to control the operation of the liquid crystal panel inspection machine.
Of course, in other embodiments, the lcd panel inspection machine may be externally provided with a display and a keyboard, and the externally provided display and the keyboard are respectively connected with the control processing system, so that the detection information can be displayed by the externally provided display, and the control instruction can be input by the externally provided keyboard.
In the application, referring to fig. 1, two safety gratings 8 are respectively disposed on the console 2 corresponding to two sides of the linear transmission mechanism 3 to ensure the operation safety of the operator.
In the present application, referring to fig. 1, the console 2 is further provided with a plurality of control switch buttons, such as an emergency stop button 20, a feeding switch button 21, and the like, wherein when the emergency stop button 20 is pressed down and turned on, the liquid crystal panel inspection machine emergently stops working for emergency; the feed switch button 21 is used to control the operation of the linear transport mechanism 3 when the liquid crystal panel inspection machine is started up.
In addition, there are many cables in the lcd panel inspection machine, and when the cable device is not reasonable, the cables are easily knotted, and in order to prevent the cables in the lcd panel inspection machine from knotting, the cables are usually installed in the drag chain mechanism, for example, in fig. 3, a first drag chain mechanism 3100 and a second drag chain mechanism 3400 are respectively installed at the side surfaces of the first lifting module 31 and the second lifting module 34, and the first drag chain mechanism 3100 and the second drag chain mechanism 3400 are respectively used for installing cables of the first transmission device, the second transmission device, and the like; a third tow chain mechanism 500 is provided at a side of the third lifting module 54 in fig. 2, and the third tow chain mechanism 500 is used for cables to install the first camera 50, the second camera 51, and the like.
In the scheme of the utility model, the inspection chamber 11 in the liquid crystal panel inspection machine is lightproof, in operation, the liquid crystal panel is transmitted from the outside of the inspection chamber 11 to the inside of the inspection chamber 11 or from the inside of the inspection chamber 11 to the outside of the inspection chamber 11 through the straight line transmission mechanism 3, the liquid crystal panel is lightened through the panel lightening mechanism 4, and when the liquid crystal panel is sent to the inspection area of the inspection chamber 11, the illumination device 53 in the image acquisition mechanism is turned on for illumination, the first camera 50, the second camera 51 and the third camera 52 in the image acquisition mechanism respectively acquire the first front-view image, the second front-view image and the side-view image of the liquid crystal panel to send to the control processing system, the control processing system respectively carries out the appearance and the point line defect detection, the front-view mura defect detection and the side-view mura defect detection of the liquid crystal panel according to the first front-view image, the second front-view image and the side-view image, so the, and the interference of external light is avoided, the detection is more accurate, the detection efficiency is high, and the use requirement is met.
In the embodiments provided in the present disclosure, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative. For example, some components or devices may be implemented using equivalent components or devices, but such implementation should not be considered as beyond the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A liquid crystal panel inspection machine, comprising:
the device comprises a machine body, a control device and a control system, wherein the machine body comprises a main control chamber for arranging the control processing system and a lightproof inspection chamber, and a communication port is formed in one side surface of the inspection chamber;
the operating table is arranged on the side of the machine body, on which the communication port is formed;
the linear transmission mechanism is arranged in the communication port in a penetrating way, one part of the linear transmission mechanism is arranged on the operating platform to form a loading and unloading area, the other part of the linear transmission mechanism is arranged in the inspection chamber to form a detection area, and the linear transmission mechanism is used for transmitting a jig provided with a liquid crystal panel from the loading and unloading area to the detection area or transmitting the jig back to the loading and unloading area from the detection area;
the panel lighting mechanism is arranged on the linear transmission mechanism and used for lighting a liquid crystal panel in a jig on the linear transmission mechanism; and
an image acquisition mechanism, image acquisition mechanism set up in the inspection chamber, image acquisition mechanism including one set up in the top department of detection zone is used for gathering the first orthographic view image of liquid crystal display panel and send to control processing system's first camera, one set up in the side department of first camera is used for gathering the second orthographic view image of liquid crystal display panel and send to control processing system's second camera, at least one set up in the side top department of detection zone is used for gathering the side view image of liquid crystal display panel and send to control processing system's third camera and one set up in the side department of detection zone is used for supplying the lighting device that detects the illumination and use.
2. The liquid crystal panel inspection machine of claim 1, wherein the linear transport mechanism comprises:
a base;
the first transmission device comprises a first horizontal carrying module fixed on the base, a first lifting module connected with the first horizontal carrying module and driven horizontally by the first horizontal carrying module, and a first bearing plate connected with the first lifting module and driven vertically by the first lifting module;
and the second transmission device comprises a second horizontal carrying module which is fixed on the base and is arranged in parallel with the first horizontal carrying module, a second lifting module which is connected with the second horizontal carrying module and is driven by the second horizontal carrying module horizontally, and a second bearing plate which is connected with the second lifting module and is driven by the second lifting module vertically.
3. The liquid crystal panel inspection machine of claim 2, wherein the movement axes of the first and second support plates in the horizontal direction are coaxial.
4. The LCD panel inspection machine of claim 2 or 3, wherein the first horizontal carrying module comprises a first horizontal rail fixed on the base and a first horizontal driving device connected to the first lifting module to drive the first lifting module to slide along the first horizontal rail;
the second horizontal carrying module comprises a second horizontal guide rail and a second horizontal driving device, the second horizontal guide rail is fixed on the base, and the second horizontal driving device is connected with the second lifting module to drive the second lifting module to slide along the second horizontal guide rail;
the first lifting module comprises a first vertical movement base and a first lifting driving device, the first vertical movement base is arranged on the first horizontal guide rail, and the first lifting driving device is connected with the first bearing plate so as to drive the first bearing plate to move up and down along the first vertical movement base;
the second lifting module comprises a second vertical movement base and a second lifting driving device, the second vertical movement base is arranged on the second horizontal guide rail, and the second lifting driving device is connected with the second bearing plate to drive the second bearing plate to move up and down along the second vertical movement base.
5. The inspecting machine of claim 2, wherein the panel lighting mechanism comprises two panel lighting modules connected to the control processing system, and the two panel lighting modules are respectively disposed on the jigs of the first and second supporting plates.
6. The LCD panel inspection machine of claim 1, wherein the first camera and the second camera are fixed above the inspection area by a third lifting module and can be driven by the third lifting module to move up and down.
7. The inspecting machine of claim 1, wherein the image capturing mechanism includes two of the third cameras, and the two third cameras are symmetrically disposed above and to the side of the inspection area through a fixed mounting post.
8. The LCD panel inspection machine of claim 1, wherein the illumination device comprises two light sources connected to the control processing system, the two light sources being symmetrically disposed at two sides of the detection area.
9. The LCD panel inspection machine of claim 1, wherein a code scanning device is further disposed on the machine body, and the code scanning device is connected to the control processing system for scanning codes on the LCD panel.
10. The LCD panel inspection machine of claim 1, wherein an alarm device is further disposed on the machine body, and the alarm device is connected to the control processing system for reminding of an abnormality.
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| CN201920599458.1U CN209858453U (en) | 2019-04-26 | 2019-04-26 | Liquid crystal display panel inspection machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920599458.1U CN209858453U (en) | 2019-04-26 | 2019-04-26 | Liquid crystal display panel inspection machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304945A (en) * | 2020-10-23 | 2021-02-02 | 欧菲影像技术（广州）有限公司 | Single appearance inspection equipment of camera module Cube |
| CN112798620A (en) * | 2020-12-07 | 2021-05-14 | 上海辛玮智能科技有限公司 | Microcosmic automatic intelligent three-in-one detection system |
| CN114544150A (en) * | 2022-02-21 | 2022-05-27 | 北京华镁钛科技有限公司 | Automatic test equipment for liquid crystal gray level |
-
2019
- 2019-04-26 CN CN201920599458.1U patent/CN209858453U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304945A (en) * | 2020-10-23 | 2021-02-02 | 欧菲影像技术（广州）有限公司 | Single appearance inspection equipment of camera module Cube |
| CN112798620A (en) * | 2020-12-07 | 2021-05-14 | 上海辛玮智能科技有限公司 | Microcosmic automatic intelligent three-in-one detection system |
| CN114544150A (en) * | 2022-02-21 | 2022-05-27 | 北京华镁钛科技有限公司 | Automatic test equipment for liquid crystal gray level |
| CN114544150B (en) * | 2022-02-21 | 2023-03-10 | 北京华镁钛科技有限公司 | Automatic test equipment for liquid crystal gray level |
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