Electronic paper picture automatic detection device

Abstract

The application provides an electronic paper picture automatic detection device, which comprises: a ring-shaped conveying line with a feeding station, a first detection station and a discharging station; a feeding assembly line; a discharging assembly line with a second detection station; a plurality of jig carriers for placing electronic paper and transmitting test signals to the electronic paper to light up the electronic paper; two mechanical hands which are operated alternately and used for grabbing and placing the electronic paper to be tested on the jig carriers at the feeding station; a first picture detection part at the first detection station for obtaining first picture information; a discharging conveying part for conveying the electronic paper on the jig carriers at the discharging station to the discharging assembly line; a second picture detection part at the second detection station for obtaining second picture information; a control part for determining whether the electronic paper is qualified according to the first picture information and / or the second picture information; and a defective product sorting part for sorting out the unqualified electronic paper on the discharging assembly line.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of display device detection, and particularly relates to an electronic paper picture automatic detection device. BACKGROUND

[0002] Electronic paper has the characteristics of comfortable reading like paper, ultra-thin and light, and has been widely used. Due to the display screen characteristics of electronic paper, how to improve the picture display effect of electronic paper has become the focus of attention. And picture detection of electronic paper is an important link to ensure the picture quality of electronic paper in production.

[0003] At present, picture detection of electronic paper mainly adopts manual picture test and test result judgment. When manual picture test is performed, the to-be-tested product needs to be manually inserted with a test fixture, and the product has a high risk of being bad; the test result is subjectively judged by a detection personnel, and the accuracy and reliability are low. Moreover, manual detection takes a long time, reduces the production efficiency, and is not conducive to batch production of electronic paper. SUMMARY

[0004] The application is made to solve the above technical problems, and aims to provide an electronic paper picture automatic detection device.

[0005] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0006] The application provides an electronic paper picture automatic detection device for picture detection of electronic paper, the electronic paper having a display screen and a soft board connected to the display screen, the soft board being provided with circuit pins, and having the characteristics that the device comprises: a ring-shaped conveying line having a feeding station, a first detection station and a discharging station arranged in sequence along a conveying direction of the ring-shaped conveying line; a feeding assembly line arranged correspondingly to the feeding station; a discharging assembly line arranged correspondingly to the discharging station and having a second detection station; a plurality of jig carriers respectively installed on the ring-shaped conveying line, used for placing the electronic paper to be detected and transmitting test signals to the electronic paper to light up the electronic paper, each jig carrier having test probes positioned opposite to the circuit pins on the electronic paper; two mechanical arms alternately operating and respectively used for grabbing the electronic paper to be detected on the feeding assembly line and placing the electronic paper on the jig carrier at the feeding station; a first picture detection unit at the first detection station, used for acquiring first picture information of a first picture displayed by the electronic paper on the jig carrier after being lighted up; a discharging conveying unit used for conveying the electronic paper on the jig carrier at the discharging station to the discharging assembly line; a second picture detection unit at the second detection station, used for acquiring second picture information of a second picture displayed by the electronic paper on the discharging assembly line after being lighted up; a control unit used for determining whether the corresponding electronic paper is qualified according to the first picture information and / or the second picture information; and a defective product sorting unit used for sorting out the unqualified electronic paper on the discharging assembly line.

[0007] In the electronic paper picture automatic detection device provided by the application, the device can further have the characteristics that the device further comprises: a feeding preliminary positioning unit used for acquiring display screen position information of the display screen of the electronic paper to be detected on the feeding assembly line; and a feeding precise positioning unit used for acquiring soft board position information of the soft board of the electronic paper grabbed by the mechanical arm, wherein the control unit controls the mechanical arm to grab the electronic paper to be detected from the feeding assembly line according to the display screen position information, and controls the mechanical arm to place the electronic paper on the jig carrier so that the circuit pins of the electronic paper are positioned opposite to the test probes of the jig carrier according to the soft board position information.

[0008] In the electronic paper picture automatic detection device provided by the application, the device can further have the characteristics that the feeding preliminary positioning unit comprises a first positioning camera and a first positioning light source positioned below the first positioning camera, and the feeding precise positioning unit comprises a second positioning camera and a second positioning light source positioned above the second positioning camera, the second positioning light source being a coaxial light source.

[0009] In the electronic paper picture automatic detection device provided by the application, the jig carrier can further have the following features: the jig carrier has a vacuum adsorption carrier for placing the display screen of the electronic paper, and the vacuum adsorption carrier comprises, from top to bottom, a microporous carrier panel, a vacuum adsorption film, a microporous vacuum adsorption cavity panel, and a vacuum adsorption air inlet panel, and the vacuum adsorption film is a fiber film.

[0010] In the electronic paper picture automatic detection device provided by the application, the ring-shaped conveying line can further have the following features: the ring-shaped conveying line comprises a ring-shaped guide rail and jig carrier driving components, a plurality of jig carriers are respectively slidably installed on the ring-shaped guide rail and connected to the jig carrier driving components, and the ring-shaped guide rail is provided with stop components for limiting the jig carriers at positions of the feeding station, the first detection station, and the discharging station.

[0011] In the electronic paper picture automatic detection device provided by the application, the ring-shaped conveying line can further have the following features: the ring-shaped conveying line further comprises an electrical supply unit for respectively supplying electricity to the plurality of jig carriers, the electrical supply unit is located at a central position of the ring-shaped guide rail and comprises a rotating column, a plurality of spring-type electrical delivery pipes, and a column rotating driving component for driving the rotating column to rotate, the top of the rotating column is provided with an electrical slide valve, the plurality of spring-type electrical delivery pipes respectively correspond to the plurality of jig carriers, and the upper end and the lower end of each spring-type electrical delivery pipe are respectively connected to the electrical slide valve and the corresponding jig carrier.

[0012] In the electronic paper picture automatic detection device provided by the application, the mechanical arm can be a four-axis mechanical arm and comprise a mechanical arm body and a first vacuum suction nozzle assembly installed on the mechanical arm body, and the first vacuum suction nozzle assembly has a plurality of vacuum suction nozzles arranged in a shape matching the electronic paper.

[0013] In the electronic paper picture automatic detection device provided by the application, the first picture detection unit can further have the following features: the first picture detection unit comprises a first detection camera, a first detection light source located below the first detection camera, and a camera driving component for driving the first detection camera to move towards or away from the ring-shaped guide rail, and the first detection light source is a ring-shaped light source.

[0014] In the electronic paper picture automatic detection device provided by the application, the feeding conveying part can further comprise a second vacuum suction nozzle assembly and a feeding conveying horizontal movement driving part and a feeding conveying lifting driving part for driving the second vacuum suction nozzle assembly to move horizontally and lift vertically respectively, and the second vacuum suction nozzle assembly comprises a plurality of vacuum suction nozzles arranged in a shape matched with the electronic paper.

[0015] In the electronic paper picture automatic detection device provided by the application, the defective product collecting disc can be further arranged on one side of the discharging flow line to collect the unqualified electronic paper, and the defective product sorting part can further comprise a third vacuum suction nozzle assembly, a first sorting horizontal movement driving part and a second sorting horizontal movement driving part for driving the third vacuum suction nozzle assembly to move horizontally in the width direction and the length direction of the discharging flow line respectively, and a sorting lifting driving part for driving the third vacuum suction nozzle assembly to lift vertically, and the third vacuum suction nozzle assembly comprises a plurality of vacuum suction nozzles arranged in a shape matched with the electronic paper.

[0016] Invention action and effect

[0017] According to the electronic paper picture automatic detection device provided by the application, the annular conveying line comprises a feeding station, a first detection station and a discharging station arranged in sequence, the feeding flow line is arranged corresponding to the feeding station, the discharging flow line is arranged corresponding to the discharging station and has a second detection station, the jig carrier is installed on the annular conveying line and can transmit a test signal to the electronic paper to light up the electronic paper, the two mechanical arms are alternately operated to grab the electronic paper to be tested on the feeding flow line and place it on the jig carrier in the feeding station, the first picture detection part is located in the first detection station to obtain the first picture information of the electronic paper after being lighted up, the feeding conveying part can transport the electronic paper on the jig carrier in the discharging station to the discharging flow line, the second picture detection part is located in the second detection station to obtain the second picture information of the electronic paper after being lighted up, the control part can determine whether the corresponding electronic paper is qualified according to the first picture information and / or the second picture information, and the defective product sorting part can sort out the unqualified electronic paper on the discharging flow line, so that the application can realize the automatic detection of the electronic paper picture, shorten the time consumed for detecting the electronic paper, improve the production efficiency, and facilitate the batch production of the electronic paper; the problems of product defect risk caused by directly plugging the product to be tested and the test jig and misjudgment caused by subjective judgment of the detection personnel are avoided, the accuracy and reliability of the electronic paper picture detection are improved, and the annular conveying line saves the floor area and saves space. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1is a schematic diagram of a three-dimensional structure of an electronic paper in an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a three-dimensional structure of an electronic paper picture automatic detection device in an embodiment of the present application;

[0020] Figure 3 is a top view of an electronic paper picture automatic detection device in an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a three-dimensional structure of a ring-shaped transport line in an embodiment of the present application;

[0022] Figure 5 is a schematic diagram of a three-dimensional structure of a stop component in an embodiment of the present application;

[0023] Figure 6 is a schematic diagram of a three-dimensional structure of a feeding assembly line and a feeding preliminary positioning part in an embodiment of the present application;

[0024] Figure 7 is a schematic diagram of a three-dimensional structure of a discharging assembly line and a second picture detection part in an embodiment of the present application;

[0025] Figure 8 is a schematic diagram of a three-dimensional structure of a jig carrier in an embodiment of the present application;

[0026] Figure 9 is a bottom view of a vacuum adsorption carrier in an embodiment of the present application;

[0027] Figure 10 is an exploded assembly view of a vacuum adsorption carrier in an embodiment of the present application;

[0028] Figure 11 is a schematic diagram of a three-dimensional structure of a vacuum suction nozzle assembly in an embodiment of the present application;

[0029] Figure 12 is a schematic diagram of a three-dimensional structure of a feeding precise positioning part in an embodiment of the present application;

[0030] Figure 13 is an exploded assembly view of a feeding precise positioning part in an embodiment of the present application;

[0031] Figure 14 is a schematic diagram of a three-dimensional structure of a first picture detection part in an embodiment of the present application;

[0032] Figure 15 is an exploded assembly view of a first picture detection part in an embodiment of the present application;

[0033] Figure 16 is a schematic diagram of a three-dimensional structure of a discharging transport part and a defective product sorting part in an embodiment of the present application;

[0034] Figure 17 is a disassembled installation schematic diagram of the blanking conveying part and the defective product sorting part in the embodiment of the present application; and

[0035] Figure 18 is a disassembled installation schematic diagram of the second picture detection part in the embodiment of the present application. DETAILED DESCRIPTION

[0036] The concept, specific structure and generated technical effects of the present application will be further described below in combination with the drawings, so as to fully understand the purposes, features and effects of the present application.

[0037] Figure 1 is a three-dimensional structure schematic diagram of an electronic paper in the embodiment of the present application.

[0038] As shown in Figure 1 , in the present embodiment, the electronic paper 30 comprises a display screen 31, a soft board 32 and a plurality of circuit pins 33.

[0039] The soft board 32 is connected to one end of the display screen 31, and the plurality of circuit pins 33 are arranged on the free end of the soft board 32 and are arranged at intervals in the width direction of the soft board 32.

[0040] Figure 2 is a three-dimensional structure schematic diagram of an electronic paper picture automatic detection device in the embodiment of the present application; Figure 3 is a top view of the electronic paper picture automatic detection device in the embodiment of the present application.

[0041] As shown in Figure 2 and Figure 3 , in the present embodiment, the electronic paper picture automatic detection device 10 is arranged between the ink-jet process and the dispensing process of the electronic paper production equipment (not shown in the figure), and is used for picture detection on the electronic paper 30 output from the ink-jet process, and after the detection is completed, the qualified electronic paper is transported to the dispensing process. The electronic paper picture automatic detection device 10 comprises a rack 11, a ring-shaped conveying line 12, a feeding assembly line 13, a blanking assembly line 14, a plurality of jig carriers 15, two mechanical hands 16, a feeding initial positioning part 17, a feeding fine positioning part 18, a first picture detection part 19, a blanking conveying part 20, a second picture detection part 21, a defective product collection tray 22, a defective product sorting part 23 and a control part (not shown in the figure).

[0042] As shown in Figure 2 and Figure 3As shown, the rack 11 is a metal frame, for mounting the annular transport line 12, the feeding flow line 13, the discharging flow line 14, the plurality of jig carriers 15, the two mechanical hands 16, the feeding preliminary positioning part 17, the feeding precise positioning part 18, the first picture detecting part 19, the discharging transport part 20, the second picture detecting part 21, the defective product collecting tray 22, the defective product sorting part 23 and the control part.

[0043] Figure 4 is a schematic diagram of the three-dimensional structure of the annular transport line in the embodiment of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of the stop component in the embodiment of the present application.

[0044] As shown, Figures 2 to 5 the annular transport line 12 has the feeding station 12a, the first detecting station 12b and the discharging station 12c arranged in sequence along the transport direction thereof. The annular transport line 12 comprises the annular guide rail 121, the jig carrier driving component 122 and the electrical supply unit 123.

[0045] The annular guide rail 121 is annular, for mounting the plurality of jig carriers 15. In the embodiment, the annular guide rail 121 is provided with the stop component 124 for limiting the jig carrier 15 at the positions of the feeding station 12a, the first detecting station 12b and the discharging station 12c. The stop component 124 has the stop block 124a capable of being flipped up and down and the air cylinder 124b for driving the stop block 124a to flip. When the jig carrier 15 moves to the corresponding station, the control part controls the air cylinder 124b to work, driving the stop block 124a to rotate upward, thereby limiting the jig carrier 15.

[0046] The jig carrier driving component 122 is for driving the jig carrier 15 to move on the annular guide rail 121, comprising the annular chain 122a, the two transmission gear plates 122b and the driving member 122c.

[0047] The annular chain 122a is annular, arranged inside the annular guide rail 121 and connected with the plurality of jig carriers 15 respectively.

[0048] The two transmission gear plates 122b are arranged in interval and matched with the annular chain 122a respectively.

[0049] The driving member 122c is connected with one transmission gear plate 122b, for driving the transmission gear plate 122b to rotate, thereby driving the annular chain 122a to rotate, and further driving the jig carrier 15 to move on the annular guide rail 121. In the embodiment, the driving member 122c has the servo motor, the speed reducer and the coupling connected in sequence, and the output end of the coupling is connected with the transmission gear plate 122b.

[0050] The electrical supply unit 123 is used to supply electricity to the plurality of jig carriers 15 respectively, and contains a rotating column 123a, a plurality of spring-type electrical delivery tubes 123b, and a column rotation driving component 123c.

[0051] The rotating column 123a is rotatably installed at the central position of the annular guide rail 121, and the top thereof is provided with an electrical slide valve 123d.

[0052] The plurality of spring-type electrical delivery tubes 123b correspond to the plurality of jig carriers 15 respectively, and the upper end and the lower end of each spring-type electrical delivery tube 123b are connected to the electrical slide valve 123d and the corresponding jig carrier 15 respectively. The spring-type electrical delivery tube 123b is internally provided with an air inlet and outlet tube and a cable.

[0053] The column rotation driving component 123c is connected to the lower end of the rotating column 123a through a belt drive, and is used to drive the rotating column 123a to rotate, thereby driving the plurality of spring-type electrical delivery tubes 123b to move synchronously with the movement of the plurality of jig carriers 15. In this embodiment, the column rotation driving component 123c is a motor.

[0054] Figure 6 is a schematic diagram of the feeding flow line and the feeding initial positioning unit in the embodiment of the present application.

[0055] As shown in Figure 2 , Figure 3 and Figure 6 , the feeding flow line 13 is provided corresponding to the feeding station 12a of the annular transport line 12, and is a conveyor belt type feeding and discharging flow line structure.

[0056] In this embodiment, the feeding flow line 13 is provided above with an ion wind rod 131 and a code scanner 132 arranged in sequence along the conveying direction thereof; the ion wind rod 131 is used to eliminate the static electricity of the electronic paper 30 located on the conveyor belt; when the electronic paper 30 passes below the code scanner 132, the code scanner 132 acquires the information including the identification number and the model number of the electronic paper 30 by scanning the bar code thereon.

[0057] Figure 7 is a schematic diagram of the discharging flow line and the second image detection unit in the embodiment of the present application.

[0058] As shown in Figure 2 , Figure 3 and Figure 7 , the discharging flow line 14 is provided corresponding to the discharging station 12c of the annular transport line 12, and is a conveyor belt type feeding and discharging flow line structure. The discharging flow line 14 has a second detection station 14a.

[0059] In the embodiment, an ion wind rod 141 for eliminating static electricity of the electronic paper 30 on the feeding line 14 and a position sensing device 142 for sensing whether the electronic paper 30 reaches a predetermined position under the position sensing device 142 are arranged in sequence along the conveying direction of the feeding line 14 above the rear end of the feeding line 14.

[0060] In the embodiment, a sizing assembly 143 for sizing the electronic paper 30 is further arranged at the rear end of the feeding line 14. The sizing assembly 143 has a positioning block 143a extending along the length direction of the feeding line 14 and movable in the width direction of the feeding line 14, and a driving component 143b for driving the positioning block 143a to move. The positioning block 143a is mounted on the feeding line 14 through a guide rail sliding block structure, and the driving component 143b is connected with the sliding of the guide rail sliding block structure through a belt driving mode. When the electronic paper 30 on the feeding line 14 reaches the position under the position sensing device 142, the position sensing device 142 sends a position sensing signal to the control unit, and the control unit controls the sizing assembly 143 to work according to the position sensing signal, so as to move the electronic paper 30 to the predetermined position.

[0061] Figure 8 is a schematic diagram of the three-dimensional structure of the jig carrier in the embodiment of the present application; Figure 9 is a schematic diagram of the bottom structure of the vacuum adsorption carrier in the embodiment of the present application; Figure 10 is a schematic diagram of the exploded installation of the vacuum adsorption carrier in the embodiment of the present application.

[0062] As shown in Figure 2 , Figure 3 and Figures 8 to 10 , a plurality of jig carriers 15 are respectively arranged on the ring-shaped guide rail 121 of the ring-shaped conveying line 12, for placing the electronic paper 30 to be tested and transmitting test signals to the electronic paper 30 to light up the electronic paper 30. Each jig carrier 15 comprises a carrier base 151, a vacuum adsorption carrier 152, a soft plate supporting carrier 153 and a pressure head probe assembly 154.

[0063] The carrier base 151 is slidingly mounted on the ring-shaped guide rail 121 and connected with the ring-shaped chain 122a of the jig carrier driving component 122, for mounting the vacuum adsorption carrier 152, the soft plate supporting block 153 and the pressure head probe assembly 154. In the embodiment, the rear end of the carrier base 151 is provided with an electrical connector 151a for accessing electricity, which is connected with the lower end of the corresponding spring type electrical conveying pipe 123b.

[0064] A vacuum suction platform 152 is installed at the central position of the platform base 151, and is used to place the display screen 31 of the electronic paper 30 to be tested. The vacuum suction platform 152 comprises, from top to bottom, a microporous platform panel 152a, a vacuum suction film 152b, a microporous vacuum suction cavity plate 152c, a vacuum suction air inlet plate 152d, and a negative pressure input connector 152e.

[0065] The microporous platform panel 152a is provided with a plurality of micropores 152f arranged in an array.

[0066] The vacuum suction film 152b is made of a fiber film.

[0067] The microporous vacuum suction cavity plate 152c is provided with a suction cavity (not shown in the figure) at the bottom and a plurality of micropores 152g at the top, which are respectively connected to the suction cavity and correspond to the plurality of micropores 152f on the microporous platform panel 152a.

[0068] The vacuum suction air inlet plate 152d is provided with an air inlet hole 152h.

[0069] The negative pressure input connector 152e is installed in the air inlet hole 152h of the vacuum suction air inlet plate 152d, and is connected to the electrical connector 151a through an air inlet and outlet pipe.

[0070] The soft plate support platform 153 is installed at the rear end of the platform base 151, and is used to place the soft plate 31 of the electronic paper 30 to be tested.

[0071] The pressure head probe assembly 154 has a pressure head 154a, a plurality of test probes (not shown in the figure), and a pressing drive member 154b.

[0072] The pressure head 154a is located directly above the soft plate support platform 153, and can perform ascending or descending actions relative to the soft plate support platform 153.

[0073] The plurality of test probes (not shown in the figure) are installed on the lower surface of the pressure head 154a, and are used to be positioned opposite to the plurality of circuit pins 33 on the electronic paper 30.

[0074] The pressing drive member 154b is connected to the pressure head 154a, and is used to drive the pressure head 154a to perform ascending or descending actions. When the pressing drive member 154b drives the pressure head 154a to descend, the plurality of test probes are pressed against the plurality of circuit pins 33 on the electronic paper 30, so as to realize the electrical connection between the test probes and the circuit pins 33. In this embodiment, the pressing drive member 154b is a pneumatic cylinder.

[0075] Figure 11 is a schematic diagram of the three-dimensional structure of the vacuum nozzle assembly in the embodiment of the present application.

[0076] As Figure 2、 Figure 3 and Figure 11 As shown in

[0077] In this embodiment, the mechanical hand 16 is a four-axis mechanical hand, which comprises a mechanical hand body 161 and a vacuum suction nozzle assembly 162 installed on the mechanical hand body 161. The vacuum suction nozzle assembly 162 has a mounting frame 162a, a plurality of vacuum suction nozzles 162b and a connecting head 162c. The plurality of vacuum suction nozzles 162b are installed on the bottom of the mounting frame 162a and arranged in a shape matching the electronic paper 30. The connecting head 162c is installed on the top of the mounting plate 162a and used to connect with the mechanical hand body 161.

[0078] As shown in Figure 2 、 Figure 3 and Figure 6 The feeding preliminary positioning part 17 is located at the rear end of the feeding flow line 13 and used to obtain the display screen position information of the display screen 31 of the electronic paper 30 on the feeding flow line 13 for further controlling the mechanical hand 16 to accurately grab the electronic paper 30 on the feeding flow line 13 according to the display screen position information. The feeding preliminary positioning part 17 comprises a mounting frame 171, a camera 172 and a light source 173.

[0079] The mounting frame 171 is fixedly arranged on one side of the feeding flow line 13.

[0080] The camera 172 is installed on the mounting frame 171 and located above the feeding flow line 13.

[0081] The light source 173 is installed on the mounting frame 171 and located below the camera 172.

[0082] Figure 12 is a perspective structural schematic view of the feeding precise positioning part in the embodiment of the present application; Figure 13 is an exploded installation schematic view of the feeding precise positioning part in the embodiment of the present application.

[0083] As shown in Figure 2 、 Figure 3 、 Figure 12 and Figure 13As shown, the feeding fine positioning part 18 is arranged between the feeding flow line 13 and the feeding station 12a and below the vacuum suction nozzle assembly 162 of the mechanical hand 16, for obtaining the soft plate position information of the soft plate 32 of the electronic paper 30 after being grabbed by the mechanical hand 16, and then the control part controls the mechanical hand 16 to accurately place the electronic paper 30 on the jig carrier 15 according to the soft plate position information so that the circuit pin 33 on the electronic paper 30 is positioned at the position where the test probe on the jig carrier 15 is positioned. The feeding fine positioning part 18 comprises a base 181, a support column 182, a mounting plate 183, a fine adjustment module 184, a camera 185, a coaxial light source 186 and a light shield 187.

[0084] The base 181 is fixedly arranged on the rack 11.

[0085] The lower end of the support column 182 is fixedly arranged on the base 181.

[0086] The mounting plate 183 is mounted on the top of the base 181.

[0087] The fine adjustment module 184 is mounted on the mounting plate 183.

[0088] The camera 185 is mounted on the fine adjustment module 184.

[0089] The coaxial light source 186 is located above the camera 185 and is fixedly connected with the upper end of the support column 182.

[0090] The light shield 187 is mounted outside the coaxial light source 186 and is fixedly connected with the upper end of the support column 182.

[0091] Figure 14 is a schematic diagram of the three-dimensional structure of the first picture detection part in the embodiment of the present application; Figure 15 is a schematic diagram of the exploded installation of the first picture detection part in the embodiment of the present application.

[0092] As shown in Figure 2 , Figure 3 , Figure 14 and Figure 15 , the first picture detection part 19 is located at the first detection station 12b and is mounted on the rack 11, for obtaining the first picture information of the first picture displayed after the electronic paper 30 located on the jig carrier 15 is lighted. The first picture detection part 19 comprises a mounting rack 191, a camera mounting assembly 192, a camera 193, a camera driving part 194, a ring light source 195 and a light shield 196.

[0093] The mounting rack 191 is located outside the ring guide rail 121 and is fixedly arranged on the rack 11.

[0094] The camera mounting assembly 192 is arranged at the upper end of the mounting frame 191, and is a guide rail slider structure, containing two guide rails 192a arranged at intervals and extending in the direction towards the annular guide rail 121, and two pairs of sliders 192b respectively slidingly mounted on the two guide rails 192a.

[0095] The camera 193 is mounted on the two pairs of sliders 192b of the camera mounting assembly 192.

[0096] The camera driving component 194 is arranged on the mounting frame 191, and is used to drive the sliders 192b to move towards or away from the annular guide rail 121, thereby driving the camera 193 to move towards or away from the annular guide rail 121. The camera driving component 194 contains a driving member 194a and a screw nut assembly 194b. The driving member 194a has a motor and a shaft coupling connected to the motor; the screw rod of the screw nut assembly 194b is connected to the shaft coupling of the driving member 194a, and the nut is connected to the slider 192b through a slider connecting member 194c.

[0097] The annular light source 195 is located below the camera 193 and is fixedly connected to the mounting frame 191.

[0098] The light shield 196 is mounted outside the annular light source 195 and is fixedly connected to the mounting frame 191.

[0099] Figure 16 is a schematic diagram of the three-dimensional structure of the blank conveying part and the defective product sorting part in the embodiment of the present application; Figure 17 is an exploded installation schematic diagram of the blank conveying part and the defective product sorting part in the embodiment of the present application.

[0100] As shown in Figure 2 , Figure 3 , Figure 16 and Figure 17 , the blank conveying part 20 is arranged corresponding to the blank station 12c, and is used to convey the electronic paper 30 on the jig carrier 15 at the blank station 12c to the blank assembly line 14. The blank conveying part 20 contains a mounting frame 201, a blank conveying horizontal movement driving component 202, a blank conveying lifting driving component 203, and a vacuum suction nozzle assembly 204.

[0101] The mounting frame 201 is fixedly arranged on the rack 11.

[0102] The blank conveying horizontal movement driving component 202 is used to drive the vacuum suction nozzle assembly 204 to perform horizontal movement, and contains a guide rail 202a, a slider 202b, a drag chain 202c, and a driving member 202d.

[0103] The guide rail 202a is arranged in the direction away from the annular guide rail 121.

[0104] The slider 202b is slidingly installed on the guide rail 202a.

[0105] The drag chain 202c is connected with the slider 202b and the driving member 202d respectively.

[0106] The driving member 202d has a servo motor, a speed reducer and a coupling connected in sequence.

[0107] The blanking conveying lifting driving member 203 is installed on the slider 202b of the blanking conveying horizontal moving driving member 202, and is used for driving the vacuum suction nozzle assembly 203 to perform vertical lifting action. In the embodiment, the blanking conveying lifting driving member 203 is a pneumatic cylinder.

[0108] The vacuum suction nozzle assembly 203 is installed on the blanking conveying lifting driving member 203, and can perform horizontal moving and vertical lifting action under the driving of the blanking conveying horizontal moving driving member 202 and the blanking conveying lifting driving member 203. The vacuum suction nozzle assembly 203 has the same structure as the vacuum suction nozzle 162b of the mechanical arm 16, and will not be described here.

[0109] Figure 18 is a disassembled installation schematic view of the second screen detection unit in the embodiment of the application.

[0110] As shown in Figure 2 , Figure 3 , Figure 7 and Figure 18 , the second screen detection unit 21 is located at the second detection station 14a, and is used for acquiring second screen information of a second screen displayed after the electronic paper 30 located on the blanking assembly line 14 is lighted. The second screen detection unit 21 comprises a mounting frame 211, a camera 212, a coaxial light source 213, a surface light source 214, a ring light source 215 and a light shield 216.

[0111] The mounting frame 211 is fixedly arranged on the rack 11 at a position outside the blanking assembly line 14.

[0112] The camera 212 is installed at the upper end of the mounting frame 211, and is located above the blanking assembly line 14.

[0113] The coaxial light source 213, the surface light source 214 and the ring light source 215 are sequentially arranged below the camera 212 from top to bottom.

[0114] The light shield 216 is installed outside the coaxial light source 213, the surface light source 214 and the ring light source 215, and is fixedly connected with the mounting frame 211.

[0115] As shown in Figure 2 and Figure 3As shown in FIG. 1, the defective product collecting tray 22 is arranged at one side of the down-flow line 14 for collecting the unqualified electronic paper 30.

[0116] As shown in FIG. 1, the defective product collecting tray 22 is arranged at one side of the down-flow line 14 for collecting the unqualified electronic paper 30. Figure 2 、 Figure 3 、 Figure 16 As shown in FIG. 1, the defective product collecting tray 22 is arranged at one side of the down-flow line 14 for collecting the unqualified electronic paper 30. Figure 17 The defective product sorting part 23 is used for sorting out the unqualified electronic paper on the down-flow line 14 and placing it on the defective product collecting tray 22. The defective product sorting part 23 comprises a first sorting horizontal moving driving part 231, a second sorting horizontal moving driving part 232, a sorting lifting driving part 233 and a vacuum nozzle assembly 234.

[0117] The first sorting horizontal moving driving part 231 is used for driving the vacuum nozzle assembly 234 to move horizontally in the width direction of the down-flow line 14, comprising two guide rails 231a, two sliders 231b, two drag chains 231c, a screw rod 231d and a driving part 231e.

[0118] The two guide rails 231a are arranged on the mounting frame 201 in a spaced manner and respectively extend along the width direction of the down-flow line 14.

[0119] The two sliders 231b are respectively slidably installed on the two guide rails 231a.

[0120] The two drag chains 231c respectively correspond to the two sliders 231b, and each drag chain 231c is connected with the corresponding slider 231b and the screw rod 231d.

[0121] The screw rod 231d extends along the length direction of the down-flow line 14, and both ends thereof are arranged on the mounting frame 201 through bearing seats 231f, and one end thereof is connected with the driving part 231e.

[0122] The driving part 231e is installed on the mounting frame 201 and has a servo motor, a speed reducer and a coupling connected in sequence.

[0123] The second sorting horizontal moving driving part 232 is installed on the first sorting horizontal driving part 231 and is used for driving the vacuum nozzle assembly 234 to move horizontally in the length direction of the down-flow line 14. The second sorting horizontal moving driving part 232 comprises a guide rail 232a, a slider 232b, a drag chain 232c and a driving part 232d.

[0124] The guide rail 232a is installed on the two sliders 231b of the first sorting horizontal driving part 231 and extends along the length direction of the down-flow line 14.

[0125] The slider 232b is slidably installed on the guide rail 232a.

[0126] The drag chain 232c is connected with the slider 232b and the driving member 232d respectively.

[0127] The driving member 232d is installed on the mounting frame 201, and has a servo motor, a speed reducer and a coupling connected in sequence.

[0128] The sorting lifting driving component 233 is installed on the slider 232b of the second sorting horizontal movement driving component 232 through the mounting rod 233a, and is used to drive the vacuum suction nozzle assembly 224 to perform vertical lifting action. In the embodiment, the sorting lifting driving component 233 is a pneumatic cylinder.

[0129] The vacuum suction nozzle assembly 234 is installed on the sorting lifting driving component 233, and can perform horizontal movement action in the width direction and the length direction of the discharging flow line 14 and vertical lifting action under the driving of the first sorting horizontal movement driving component 231, the second sorting horizontal movement driving component 232 and the sorting lifting driving component 233.

[0130] The control unit is a single-chip microcomputer, which is communicatively connected with the annular conveying line 12, the feeding flow line 13, the discharging flow line 14, the plurality of jig carriers 15, the two mechanical hands 16, the feeding preliminary positioning component 17, the feeding precise positioning component 18, the first picture detection component 19, the discharging conveying component 20, the second picture detection component 21 and the defective product sorting component 23, and is used to control these mechanisms to work, and is also used to control the mechanical hand 16 to accurately grab the electronic paper 30 to be tested from the feeding flow line 13 according to the display screen position information obtained by the feeding preliminary positioning component 17, and is also used to control the mechanical hand 16 to accurately place the electronic paper 30 on the jig carrier 15 so that the circuit pin 33 of the electronic paper 30 is located at a position opposite to the test probe of the jig carrier 15 according to the soft board position information obtained by the feeding precise positioning component 18, and is further used to determine whether the corresponding electronic paper is qualified according to the first picture information obtained by the first picture detection component 19 and / or the second picture information obtained by the second picture detection component 21.

[0131] In the embodiment, the working process of the electronic paper picture automatic detection device 100 is as follows:

[0132] The feeding flow line 13 receives the electronic paper 30 output by the ink-jet printing process and transports the electronic paper 30, and after the electronic paper 30 is sequentially subjected to ion wind rod 131 to eliminate static electricity and the code scanner 132 to scan and obtain information, the feeding preliminary positioning component 17 obtains the display screen position information of the electronic paper 30.

[0133] The control unit controls the robot 16 to alternately pick up the electronic paper 30 from the feeding flow line 13 according to the display screen position information; when the electronic paper 30 picked up by the robot 16 passes above the feeding fine positioning unit 18, the feeding fine positioning unit 18 acquires the soft plate position information of the electronic paper 30, and then the control unit controls the robot 16 to place the electronic paper 30 on the jig carrier 15 at the feeding station 12a so that the circuit pin 33 on the electronic paper 30 is aligned with the testing probe on the jig carrier 15.

[0134] The control unit controls the pressing driving member 154b of the jig carrier 15 to drive the pressing head 154a to descend, and then drives the testing probe to descend and press the circuit pin 33 on the electronic paper 30.

[0135] The control unit controls the jig carrier 15 to transmit a testing signal to the electronic paper 30 to light up the electronic paper 30 so that the display screen 31 displays a first picture.

[0136] When the jig carrier 15 reaches the first detection station 12b, the control unit controls the first picture detection unit 19 to work and acquire first picture information of the first picture; and the control unit determines whether the corresponding electronic paper 30 is qualified according to the first picture information.

[0137] The control unit controls the jig carrier 15 to transmit a testing signal to the electronic paper 30 to light up the electronic paper 30 so that the display screen 31 displays a first picture.

[0138] When the jig carrier 15 reaches the first detection station 12b, the control unit controls the first picture detection unit 19 to work and acquire first picture information of the first picture; and the control unit determines whether the corresponding electronic paper 30 is qualified according to the first picture information.

[0139] When the jig carrier 15 reaches the first detection station 12b, the control unit controls the first picture detection unit 19 to work and acquire first picture information of the first picture; and the control unit determines whether the corresponding electronic paper 30 is qualified according to the first picture information.

[0140] The control unit controls the jig carrier 15 to transmit a testing signal to the electronic paper 30 to light up the electronic paper 30 so that the display screen 31 displays a first picture.

[0141] The control unit controls the jig carrier 15 to transmit a testing signal to the electronic paper 30 to light up the electronic paper 30 so that the display screen 31 displays a first picture.

[0142] Effects of the embodiment

[0143] According to the electronic paper picture automatic detection device related to the embodiment, because the annular conveying line has the feeding station, the first detection station and the discharging station arranged in sequence, the feeding assembly line is correspondingly arranged with the feeding station, the discharging assembly line is correspondingly arranged with the discharging station and has the second detection station, the jig carrier is installed on the annular conveying line and can transmit the test signal to the electronic paper to light up the electronic paper, the two mechanical arms are alternately operated, can grab the electronic paper to be tested on the feeding assembly line and place it on the jig carrier in the feeding station, the first picture detection part is located in the first detection station and can obtain the first picture information of the electronic paper after being lighted up, the discharging conveying part can convey the electronic paper on the jig carrier in the discharging station to the discharging assembly line, the second picture detection part is located in the second detection station and can obtain the second picture information of the electronic paper after being lighted up, the control part can determine whether the corresponding electronic paper is qualified according to the first picture information and / or the second picture information, and the defective product sorting part can sort out the unqualified electronic paper on the discharging assembly line, so that the embodiment can realize the automatic detection of the electronic paper picture, shorten the time consumed for detecting the electronic paper, improve the production efficiency, and facilitate the batch production of the electronic paper. Avoid the risk of product failure caused by manually plugging the product to be tested and the test jig, and the problem of misjudgment caused by subjective judgment of the detection personnel, improve the accuracy and reliability of the electronic paper picture detection. Moreover, the annular conveying line occupies a small area and saves space.

[0144] In addition, because the feeding preliminary positioning part and the feeding fine positioning part are further provided, the feeding preliminary positioning part can obtain the display screen position information of the display screen of the electronic paper to be tested on the feeding assembly line, the feeding fine positioning part can obtain the soft plate position information of the soft plate of the electronic paper grabbed by the mechanical arm, the control part controls the mechanical arm to grab the electronic paper to be tested from the feeding assembly line according to the display screen position information, and controls the mechanical arm to place the electronic paper on the jig carrier so that the circuit pin of the electronic paper is aligned with the test probe of the jig carrier according to the soft plate position information, thereby further improving the accuracy of the electronic paper grabbed and placed by the mechanical arm and further ensuring the accuracy and reliability of the detection.

[0145] In addition, because the vacuum adsorption carrier of the jig carrier is provided with a vacuum adsorption film between the microporous carrier panel and the microporous vacuum adsorption cavity plate, the vacuum adsorption film is a fiber film that allows gas to pass in the transverse and longitudinal directions, and can quickly exhaust the gas on the back of the product while adsorbing the product, while maintaining a small negative pressure consumption in the position not covered by the product.

[0146] Those skilled in the art should understand that the above embodiments are preferred cases of the present application, which are intended to enable those skilled in the art to understand the intention expressed by the present application, and are not intended to limit the protection scope of the present application.

Claims

1. An electronic paper picture automatic detection device for picture detection of an electronic paper, the electronic paper having a display screen and a soft board connected to the display screen, the soft board being provided with circuit pins, characterized in that, The electronic paper picture automatic detection device comprises: a ring-shaped transport line having a feeding station, a first detection station and a discharging station arranged in sequence along a transport direction of the ring-shaped transport line; a feeding assembly line arranged corresponding to the feeding station; a discharging assembly line arranged corresponding to the discharging station and having a second detection station; a plurality of jig carriers respectively mounted on the ring-shaped transport line, used for placing electronic paper to be tested and transmitting test signals to the electronic paper to light up the electronic paper, each of the jig carriers having test probes corresponding to the circuit pins on the electronic paper; two mechanical arms alternately operated, respectively used for grabbing the electronic paper to be tested on the feeding assembly line and placing the electronic paper to the jig carrier at the feeding station; a first picture detection unit at the first detection station, used for acquiring first picture information of a first picture displayed by the electronic paper on the jig carrier after being lighted up; a discharging transport unit, used for transporting the electronic paper on the jig carrier at the discharging station to the discharging assembly line; a second picture detection unit at the second detection station, used for acquiring second picture information of a second picture displayed by the electronic paper on the discharging assembly line after being lighted up; a control unit, used for determining whether the corresponding electronic paper is qualified according to the first picture information and / or the second picture information; and a defective product sorting unit, used for sorting out the unqualified electronic paper on the discharging assembly line. The ring-shaped transport line comprises a ring-shaped guide rail and a jig carrier driving component. The plurality of jig carriers are respectively slidably mounted on the ring-shaped guide rail and connected with the jig carrier driving component. The ring-shaped transport line further comprises an electrical supply unit for respectively providing electricity to the plurality of jig carriers. The electrical supply unit is located at a central position of the ring-shaped guide rail and comprises a rotating column, a plurality of spring-type electrical delivery pipes and a column rotating driving component for driving the rotating column to rotate. The rotating column is provided with an electrical slide valve at the top. The plurality of spring-type electrical delivery pipes respectively correspond to the plurality of jig carriers, and the upper end and the lower end of each spring-type electrical delivery pipe are respectively connected with the electrical slide valve and the corresponding jig carrier. The feeding preliminary positioning unit is used for acquiring display screen position information of a display screen of the electronic paper to be tested on the feeding assembly line.

2. The electronic paper screen automatic detection apparatus according to claim 1, characterized by The feeding precise positioning unit is used for acquiring soft plate position information of a soft plate of the electronic paper grabbed by the mechanical arm. The control unit controls the mechanical arm to grab the electronic paper to be tested from the feeding assembly line according to the display screen position information, and controls the mechanical arm to place the electronic paper on the jig carrier so that the circuit pins of the electronic paper are aligned with the test probes of the jig carrier according to the soft plate position information. The feeding preliminary positioning unit comprises a first positioning camera and a first positioning light source located below the first positioning camera. ​ ​ ​ wherein, ​ The feeding precision positioning unit comprises a second positioning camera and a second positioning light source above the second positioning camera, The second positioning light source is a coaxial light source.

4. The electronic paper picture automatic detection device according to claim 1, characterized in that: wherein The jig carrier has a vacuum suction carrier for placing the display screen of the electronic paper, The vacuum suction carrier comprises, from top to bottom, a microporous carrier panel, a vacuum suction film, a microporous vacuum suction cavity plate, and a vacuum suction air inlet plate, The vacuum suction film is a fiber film.

5. The electronic paper picture automatic detection device according to claim 1, characterized in that: wherein, The annular guide rail is provided with a stop component for limiting the jig carrier at the positions of the feeding station, the first detection station, and the discharging station.

6. The electronic paper picture automatic detection device according to claim 1, characterized in that: wherein The mechanical hand is a four-axis mechanical hand comprising a mechanical hand body and a first vacuum suction nozzle assembly mounted on the mechanical hand body, The first vacuum suction nozzle assembly has a plurality of vacuum suction nozzles arranged in a shape matching the electronic paper.

7. The electronic paper picture automatic detection device according to claim 1, characterized in that: wherein, The first picture detection unit comprises a first detection camera, a first detection light source below the first detection camera, and a camera driving component for driving the first detection camera to move towards or away from the annular guide rail, The first detection light source is a ring light source, The second picture detection unit comprises a second detection camera, a second detection light source, a third detection light source, and a fourth detection light source arranged in sequence from top to bottom below the second detection camera, The second detection light source, the third detection light source, and the fourth detection light source are coaxial light sources, surface light sources, and ring light sources, respectively.

8. The electronic paper picture automatic detection device according to claim 1, characterized in that: wherein The discharging conveying unit comprises a second vacuum suction nozzle assembly and a discharging conveying horizontal movement driving component and a discharging conveying lifting driving component for driving the second vacuum suction nozzle assembly to move horizontally and vertically, respectively, The second vacuum suction nozzle assembly has a plurality of vacuum suction nozzles arranged in a shape matching the electronic paper.

9. The electronic paper picture automatic detection apparatus according to claim 1, wherein Further comprising: A defective product collection tray arranged on one side of the discharging line for collecting unqualified electronic paper, The defective product sorting unit comprises a third vacuum suction nozzle assembly, a first sorting horizontal movement driving component and a second sorting horizontal movement driving component for driving the third vacuum suction nozzle assembly to move horizontally in the width direction and the length direction of the discharging line, respectively, and a sorting lifting driving component for driving the third vacuum suction nozzle assembly to move vertically, The third vacuum suction nozzle assembly has a plurality of vacuum suction nozzles arranged in a shape matching the electronic paper.

Images