WO2021139417A1

WO2021139417A1 - Material picking and feeding mechanism used for display-panel macroscopic detection device, and display panel macroscopic detection device

Info

Publication number: WO2021139417A1
Application number: PCT/CN2020/130267
Authority: WO
Inventors: 邓永松
Original assignee: 江苏宏芯亿泰智能装备有限公司
Priority date: 2020-01-07
Filing date: 2020-11-20
Publication date: 2021-07-15
Also published as: CN111099350A

Abstract

Provided is a material picking and feeding mechanism used for a display-panel macroscopic detection device, said material picking and feeding mechanism comprising: an X-direction linear motion module (20), its two ends being supported on the upper surface of a base platform (0) by means of a support frame and arranged spaced from the upper surface of the base platform (0); a Y-direction linear motion module (28), arranged on the base platform (0) and, beneath the X-direction linear motion module (20), comprising a Y-direction guide rail (281) and a Y-direction moving member (282) capable of moving along the Y-direction guide rail (281), the detection mechanism (14) being mounted on the base platform (0) adjacent to the front end of the Y-direction guide rail (281); a Z-direction linear motion module (19), extending in the vertical direction and connected to the rear side of an X-direction moving member (202), and comprising a Z-direction guide rail (191) and a Z-direction moving member (192) capable of moving along the Z-direction guide rail; a material picking assembly (18) is arranged on the lower end of the Z-direction moving member (192); a fixture platform (26) is supported on the Y-direction moving member (282). The picking and feeding mechanism can perform transportation of a display panel, and is conducive to automatic operations of macroscopic inspection of the display panel.

Description

Material fetching and feeding mechanism for display panel macroscopic detection device and display panel macroscopic detection device

Technical field

The invention relates to the field of macroscopic inspection of the surface of a display panel, in particular to a material picking and feeding mechanism for a display panel macroscopic inspection device and a display panel macroscopic inspection device.

Background technique

With the rapid development of today's society, with the continuous popularization and updating of electronic products such as TVs, mobile phones, and tablets, the use of liquid crystal displays or LCD screens has increased year by year. At the same time, in order to meet the usage of liquid crystal displays, major domestic liquid crystal display manufacturers continue to expand production, improve technology and increase detection functions. The inspection of display panels is an indispensable part of the display panel production process. Usually, a variety of light sources are used for macro inspection of the display panel, such as sodium lamps, metal surface inspection lamps, metal halide lamps, and LED lamps. The panel performs irradiation inspection. However, for the macro inspection of the surface of small-size panels, such as the thickness uniformity inspection of the surface film, the panel surface scratch inspection, and the panel surface dust inspection, there are fewer relevant and targeted inspection devices. Moreover, the macro inspection of the display panel in the future The material taking and feeding mechanism of the device is not suitable for display panels with smaller sizes, such as silicon-based LED display panels.

technical problem

The object of the present invention is to provide a material taking and feeding mechanism for a display panel macroscopic inspection device and a display panel macroscopic inspection device. The material taking and feeding mechanism is particularly suitable for performing small size display panels such as silicon-based LED display panels. Loading and unloading and transportation.

Technical solutions

In order to achieve the above objective, one aspect of the present invention provides a material taking and feeding mechanism for a display panel macroscopic inspection device. The display panel macroscopic inspection device includes a base and a detection mechanism, and the material taking and feeding mechanism includes:

X-direction linear motion module, both ends of the X-direction linear motion module are supported on the upper surface of the base through a bracket, so that the X-direction linear motion module is spaced apart from the upper surface of the base , The X-direction linear motion module includes an X-direction guide rail and an X-direction moving part capable of moving along the X-direction guide rail, and the X-direction guide rail extends along a first horizontal direction;

Y-direction linear motion module, the Y-direction linear motion module is arranged on the base and passes below the X-direction linear motion module, the Y-direction linear motion module includes a Y-direction guide rail and can be moved along the The Y-direction moving part moving in the Y-direction guide rail, the Y-direction guide rail extends along a second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and the detection mechanism is close to the front end of the Y-direction guide rail Installed on the abutment;

Z-direction linear motion module, the Z-direction linear motion module includes a Z-direction guide rail and a Z-direction moving part capable of moving along the Z-direction guide rail, the Z-direction guide rail extends in the vertical direction and is connected to the X-direction The back side of the moving part;

A reclaiming component, the reclaiming component is arranged at the lower end of the Z-direction moving part;

A jig platform, which is supported on the Y-direction moving part.

Preferably, the material taking and feeding mechanism further includes an upper material position unit, a qualified material lower material position unit, and an unqualified material lower material position unit located behind the X-direction linear motion module. The upper material position unit, qualified material lower material The position unit and the unqualified material lowering position unit are arranged at intervals along the first horizontal direction, and the rear end of the Y-direction linear motion module is located between the upper material position unit and the qualified material lowering position unit And in the second horizontal direction, the position of the reclaiming component corresponds to the positions of the upper material level unit, the qualified material lower material level unit, and the unqualified material lower material level unit.

Preferably, the upper material level unit, the qualified material lower material level unit, and the unqualified material lower material level unit each include a rectangular material level, and the rectangular material level is sequentially arranged on the four sides of the rectangular material level. A block, a second block, a first push block and a second push block are defined, wherein the first block and the first push block extend along the first horizontal direction, and the second block The block and the second push block extend in the second horizontal direction, and the first push block and the second push block are respectively arranged to be able to move in the second horizontal direction and the first horizontal direction .

Preferably, the first push block and the second push block respectively include a push block cylinder and a push block body, the cylinder tube of the push block cylinder is fixed on the upper surface of the base, and the piston of the push block cylinder The rod protrudes from the cylinder and is connected to the push block body at the protruding end, so that the push block body of the first push block and the push block body of the second push block can run along the first push block respectively. Move in two horizontal directions and the first horizontal direction.

Preferably, the reclaiming assembly includes a reclaiming support connected to the lower end of the Z-direction moving part, a reclaiming suction cup arranged on the reclaiming support, and a reclaiming suction cup arranged on the retrieving support or the Z-direction moving part The first negative pressure vacuum pump and the first negative pressure switch on the upper side of the suction cup, the suction cup of the suction cup faces downwards, and the upper end has a suction port. The suction end of the first negative pressure vacuum pump is connected to the suction cup of the suction cup. The suction port is connected, and the signal output terminal of the first negative pressure switch is electrically connected with the first negative pressure vacuum pump to control the opening and closing of the first negative pressure vacuum pump.

Preferably, the reclaiming suction cup includes a plurality of and each is set to be adjustable in position on the reclaiming support.

Preferably, the reclaiming bracket includes two first rods extending along the second horizontal direction and spaced apart from each other, and a second rod connected between the two first rods, the second The rod can slide along the longitudinal direction of the first rod, and a plurality of the reclaiming suction cups are arranged on the second rod at intervals, and each of the reclaiming suction cups can be moved along the longitudinal direction of the second rod. Sliding longitudinally.

Preferably, the reclaiming assembly further includes a first pressure sensor for detecting the value of the vertical upward pressure that the reclaiming assembly bears, and the signal output end of the first pressure sensor is connected to the Z-direction moving part and the The signal input ends of the first negative pressure switch are respectively electrically connected.

Preferably, the fixture platform includes a plurality of flat suction cups, the suction cup opening of the flat suction cup faces upward and the lower end has an air suction port, and a second negative pressure vacuum pump and a second negative pressure switch are also provided on the Y-direction moving part. , The suction end of the second negative pressure vacuum pump is communicated with the suction port of the flat suction cup, and the signal output end of the second negative pressure switch is electrically connected with the second negative pressure vacuum pump to control the second negative pressure vacuum pump. Press the opening and closing of the vacuum pump.

A second aspect of the present invention provides a display panel macro-inspection device, which includes the material taking and feeding mechanism for the display panel macro-inspection device according to the present invention.

Preferably, the detection mechanism includes a sodium lamp assembly and a metal surface inspection lamp assembly, the sodium lamp assembly is located above the metal surface inspection lamp assembly and has a lamp shade covering the sodium lamp, and the lamp shade is openable.

Beneficial effect

Through the above technical solution, in the material taking and feeding mechanism for the display panel macroscopic inspection device of the present invention, the X-direction linear motion module, the Y-direction linear motion module, the Z-direction linear motion module, and the reclaiming component can cooperate with each other. Complete the transportation of the display panel. The material picking and feeding mechanism for the display panel macroscopic inspection device of the present invention can realize various position changes of the display panel to be inspected in the three-dimensional space by performing X-direction movement, Y-direction movement and Z-direction movement of the display panel to be inspected, which is beneficial to the inspection. The automatic operation of the macro inspection of the display panel, and this translation method is especially suitable for display panels of smaller size specifications, such as silicon-based LED display panels.

Description of the drawings

FIG. 1 is a perspective view of a display panel macroscopic inspection device according to an embodiment of the present invention, viewed obliquely from the front;

FIG. 2 is a perspective view of the display panel macroscopic detection device in FIG. 1 viewed obliquely from behind;

3 is a perspective view of the display panel macroscopic inspection device in FIG. 1 with the outer cover omitted, still obliquely viewed from the front, showing the picking and feeding mechanism and the inspection mechanism on the base;

4 is a perspective view of the display panel macroscopic inspection device in FIG. 2 after the outer cover is omitted, still obliquely rear viewing angle, showing the take-and-feed mechanism and the inspection mechanism on the base;

Figure 5 is a view of the product frame omitted on the basis of Figure 4;

Figure 6 is an enlarged view of the circled part in Figure 5, showing the structure of the unqualified material lowering level unit, where the arrows show the moving directions of the first push block and the second push block;

FIG. 7 is a schematic diagram of the X-direction linear motion module, the Z-direction linear motion module, and the suction head assembly part of the picking and feeding mechanism of the display panel control detection device in FIG. 5;

Figure 8 is an enlarged view of the circled part in Figure 7, showing the structure of the reclaiming assembly;

9 is a schematic diagram of the Y-direction linear motion module part of the feeding mechanism of the display panel control and detection device in FIG. 5, wherein the arrow shows the direction of movement of the Y-direction moving part;

Figure 10 is a schematic diagram of the X-direction linear motion module, the Z-direction linear motion module and the suction head assembly parts continued to be omitted on the basis of Figure 5, focusing on the Y-direction linear motion module and the detection mechanism.

Description of Reference Signs

0 base station 1EFU filter unit

2 Right wall 3 Electric control box

4Operation button box 5Safety grating

6 touch screen 7 display

8 Warning light 9 Left wall

10 Rear wall 111 Upper material level unit

112 unqualified material unloading level unit 113 unqualified material unloading unit

14 testing agency 15 product frame

161 first stop 162 second stop

171 First push block 172 Second push block

173 push block body 174 push block cylinder

18 Reclaiming component 19Z-direction linear motion module

191Z-direction guide rail 192Z-direction moving parts

20X linear motion module 201X guide rail

202X direction moving parts 21 bracket

22 Reclaiming bracket 23 Reclaiming suction cup

24 The first negative pressure vacuum pump 25 The first negative pressure switch

26 Fixture platform 27 Flat suction cup

28Y-direction linear motion module 281Y-direction guide

282Y moving parts 29 metal surface inspection lamp assembly

Embodiments of the present invention

It should be noted that the embodiments of the present invention and the features of the embodiments can be combined with each other if there is no conflict.

In the present invention, it needs to be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "front", "rear", etc. is related to the actual used position or positional relationship Correspondingly; "inner and outer" refers to the inner and outer parts relative to the contour of each component itself, and "left and right" refers to when the staff is standing in the operating position, that is, facing the detection window or facing the front wall of the outer cover It is only to facilitate the description of the present invention and simplify the description, rather than to indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present invention. limits. "Electrical connection" refers to a connection in which electric charges can be conducted by means of, for example, conductive wires, or a connection in which data can be transmitted by means of, for example, data wires or terminal connections.

Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

The present invention provides a material fetching and feeding mechanism for a display panel macroscopic inspection device. The display panel macroscopic inspection device includes a base 0 and a testing mechanism 14. The material fetching and feeding mechanism includes:

The X-direction linear motion module 20, both ends of the X-direction linear motion module 20 are supported on the upper surface of the base 0 through the bracket 21, so that the X-direction linear motion module 20 and the base The X-direction linear motion module 20 includes an X-direction guide rail 201 and an X-direction moving member 202 capable of moving along the X-direction guide rail 201. The X-direction guide rail 201 extends along a first horizontal direction. ；

Y-direction linear motion module 28, the Y-direction linear motion module 28 is arranged on the base 0 and passes below the X-direction linear motion module 20, the Y-direction linear motion module 28 includes a Y-direction The guide rail 281 and the Y-direction moving member 282 capable of moving along the Y-direction guide rail 281, the Y-direction guide rail 281 extends along a second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and the detection The mechanism 14 is installed on the base 0 near the front end of the Y-direction guide rail 281;

The Z-direction linear motion module 19 includes a Z-direction guide rail 191 and a Z-direction moving member 192 capable of moving along the Z-direction guide rail. The Z-direction guide rail 191 extends in the vertical direction and is connected On the rear side of the X-direction moving member 202;

The reclaiming assembly 18 is arranged at the lower end of the Z-direction moving part 192;

The fixture platform 26 is supported on the Y-direction moving part 282.

In the material taking and feeding mechanism for the display panel macroscopic inspection device of the present invention, the X-direction linear motion module 20, the Y-direction linear motion module 28, the Z-direction linear motion module 19, and the material reclaiming assembly 18 can cooperate with each other. Transportation of the display panel. For example, after the reclaiming assembly 18 touches the display panel to be inspected at the loading station, the display panel to be inspected can be lifted to a certain height by the movement of the Z-direction moving member 192 along the Z-direction guide rail, and then moved in the X direction. When the member 202 moves along the X-direction guide rail 201, the Z-direction guide rail 191 connected to the rear side of the X-direction moving member 202 also moves along the X-direction guide rail 201, so that the display panel moves in the first horizontal direction, for example, it can move to the Y direction. After the member 282 is located, it stops, and makes the jig platform 26 move along the Y-direction guide rail 281 to the corresponding position of the display panel to be detected and then stops, and then the Z-direction moving member 192 moves downward along the Z-direction guide rail, so that After the display panel to be tested is attached to the upper surface of the fixture platform 26, the movement is stopped, and the reclaiming assembly 18 is released. At this time, the display panel to be tested is supported on the fixture platform 26, and the Y-direction is continued. The moving part 282 moves forward along the Y-direction guide rail 281 to the detection station and then stops. At this time, the detection mechanism 14 can be used to perform a macro detection on the display panel to be detected on the jig platform 26. The material picking and feeding mechanism for the display panel macroscopic inspection device of the present invention can realize various position changes of the display panel to be inspected in the three-dimensional space by performing X-direction movement, Y-direction movement and Z-direction movement of the display panel to be inspected, which is beneficial to the inspection. The automatic operation of the macro inspection of the display panel, and this translation method is especially suitable for display panels of smaller size specifications, such as silicon-based LED display panels.

Preferably, according to the movement characteristics of the material taking and feeding mechanism, referring to the embodiment of FIG. 4, the upper surface area of the base station 0 may include a discharging station, a qualified material unloading station, and an unqualified material unloading station. Specifically, the material taking and feeding mechanism further includes a loading position unit 111 (corresponding to the loading station) and a qualified material unloading position unit 112 (corresponding to a qualified material unloading station) located behind the X-direction linear motion module 20 ) And the unqualified material lowering position unit 113 (corresponding to the unqualified material unloading station), the upper material position unit 111, the qualified material lowering position unit 112 and the unqualified material lowering position unit 113 are along the first The rear end of the Y-direction linear motion module 28 is located between the upper material position unit 111 and the qualified material lower material position unit 112, and in the second horizontal direction. The position of the reclaiming assembly 18 corresponds to the positions of the upper material position unit 111, the qualified material lower material position unit 112 and the unqualified material lower material position unit 113.

Therefore, as described above, after taking out the display panel to be inspected from the loading position unit 111 through the movement of the reclaiming assembly 18 in the Z direction, it can first move in the X direction to the position of the Y direction moving member 282 and then stop. , And make the jig platform 26 move along the Y-direction guide rail 281 to the corresponding position where the display panel to be inspected is located, and then stop, and then the picking assembly 18 moves along the Z-direction to place the display panel to be inspected on the jig platform 26, Continue to move the jig platform 26 to the inspection station in the Y direction and then stop. At this time, the inspection mechanism 14 can be used to perform a macro inspection on the display panel to be inspected on the jig platform 26; and for the display panel that has been inspected , The Y-direction moving part 282 moves backward along the Y-direction guide rail 281 to the corresponding positions where the qualified material blanking station and the unqualified material blanking station are located, so that the Z-direction moving part 192 moves downward along the Z-direction guide rail. Make the reclaiming assembly 18 contact the detected display panel, and grab or suck the display panel, and then the Z-direction moving member 192 moves upward along the Z-direction guide rail to raise the detected display panel to a certain height, and then pass the X-direction The moving part 202 moves along the X-direction guide rail 201, and the Z-direction guide 191 connected to the rear side of the X-direction moving part 202 also moves along the X-direction guide 201, so that the detected display panel moves in the first horizontal direction, for example, it can move. Stop at the unqualified material unloading unit 112 (corresponding to the unqualified material unloading station) or the unqualified material unloading unit 113 (corresponding to the unqualified material unloading station), and then the Z-direction moving part 192 follows the Z-direction guide rail The downward movement of the test results in the display panel placed in the unqualified material unloading unit 112 (corresponding to the unqualified material unloading station) or the unqualified material unloading unit 113 (corresponding to the unqualified material unloading station); Thus, the automatic transportation of the display panel is realized.

Wherein, the upper material level unit 111, the qualified material lower material level unit 112 and the unqualified material lower material level unit 113 can be respectively designed in any suitable form, for example, as an option, see FIG. 5, the upper The material level unit 111, the unqualified material unloading level unit 112 and the unqualified material unloading level unit 113 each include a rectangular material level, and the rectangular material level is determined by the first stoppers sequentially arranged on the four sides of the rectangular material level. 161, the second stop block 162, the first push block 171 and the second push block 172 are defined, wherein the first stop block 161 and the first push block 171 extend along the first horizontal direction, the The second stopper 162 and the second push block 172 extend along the second horizontal direction, and the first push block 171 and the second push block 172 are respectively arranged to be able to move along the second horizontal direction and The first horizontal direction movement. Normally, the display panel is rectangular and stacked in the cuboid-shaped product frame 15 with an open upper end. The product frame 15 on which the display panel to be tested is placed can be clamped on the first stop 161 and the second block 161 of the loading position unit 111. In the rectangular material level defined by the second stopper 162, the first pushing block 171 and the second pushing block 172, the unqualified material lowering unit 112 and the unqualified material lowering unit 113 can also be clamped separately. The product frame 15 is set to contain the qualified and unqualified materials that have been tested. The staff only needs to directly transport the product frame 15 containing the display panel to the loading position unit 111, and the unqualified material level unit 112 and unqualified materials from the qualified material. The unloading position unit 113 removes the product frame 15 full of the display panel, thereby making the loading and unloading operations of the display panel more convenient and quicker.

Still referring to FIG. 5, further specifically, the first push block 171 and the second push block 172 respectively include a push block cylinder 174 and a push block body 173, and the cylinder barrel of the push block cylinder 174 is fixed to the base. On the upper surface of the seat 0, the piston rod of the push block cylinder 174 extends from the cylinder and is connected to the push block body 173 at the extended end, so that the push block body 173 of the first push block 171 and The push block body 173 of the second push block 172 can move in the second horizontal direction and the first horizontal direction, respectively. Thus, the first stop block 161 and the second stop block 162 position the product frame 15, while the first push block 171 and the second push block 172 clamp and fix the product frame 15 and ensure accurate positioning, and make the upper The material level unit 111, the unqualified material lowering level unit 112, and the unqualified material lowering level unit 113 may be applicable to rectangular parallelepiped product frames 15 of different sizes.

As for the material retrieving assembly 18, it can be understood that it can grab or suck the display panel and can release the display panel when needed. Referring to Figure 7, in this embodiment, the reclaiming assembly 18 includes a reclaiming bracket 22 connected to the lower end of the Z-direction moving member 192, a reclaiming suction cup 23 arranged on the reclaiming bracket 22, and a The first negative pressure vacuum pump 24 and the first negative pressure switch 25 on the reclaiming support 22 or the Z-direction moving part 192, the suction cup of the reclaiming suction cup 23 faces downwards and the upper end has an air suction port, the first The suction end of the negative pressure vacuum pump 24 is in communication with the suction port of the take-out suction cup 23, and the signal output end of the first negative pressure switch 25 is electrically connected to the first negative pressure vacuum pump 24 to control the first negative pressure vacuum pump 24. A negative pressure vacuum pump 24 is turned on and off. Therefore, when the display panel needs to be sucked, the reclaiming assembly 18 is first moved until the suction cup of the reclaiming suction cup 23 is attached to the upper surface of the display panel, and the first negative pressure switch 25 is released by the opening signal to make the first negative pressure switch 25 release the opening signal. A negative pressure vacuum pump 24 works to pump air through the suction end of the reclaiming suction cup 23, so that negative pressure is generated in the reclaiming suction cup 23, thereby sucking the display panel, and the display panel is sucked by the reclaiming assembly 18 And can move with it; when the display panel needs to be released, on the contrary, the first negative pressure vacuum pump 24 can be stopped by making the first negative pressure switch 25 release the off signal, and stop taking materials through its suction end. The suction cup 23 sucks air, and the negative pressure in the reclaiming suction cup 23 disappears, thereby releasing the display panel. This method of sucking the display panel through the negative pressure suction cup is also more suitable for smaller-sized or fragile display panels.

And, preferably, the reclaiming suction cup 23 includes a plurality of and each is set to be adjustable in position on the reclaiming support 22, so that the reclaiming suction cup 23 can be adjusted according to the size specifications of the display panel to be sucked. Adjust the position accordingly to suck the display panel more stably.

For example, still referring to FIG. 7, the reclaiming bracket 22 includes two first rods extending along the second horizontal direction and spaced apart from each other, and a second rod connected between the two first rods. , The second rod member can slide along the longitudinal direction (length direction) of the first rod member, a plurality of the reclaiming suction cups 23 are arranged on the second rod member at intervals, each of the reclaiming suction cups All 23 can slide along the longitudinal direction (length direction) of the second rod.

In addition, the opening and closing operations of the first negative pressure switch 25 may be controlled by a worker by operating buttons on the operation button box 4 outside the device. Optionally, the reclaiming assembly 18 may further include a first pressure sensor for detecting the value of the vertical upward pressure that the reclaiming assembly 18 bears, and the signal output end of the first pressure sensor is connected to the Z-direction moving part 192. It is electrically connected to the signal input end of the first negative pressure switch 25 respectively. For example, the first pressure sensor may be installed on the vacuum pipeline of the reclaiming suction cup 23 to detect the pressure on the reclaiming suction cup 23.

Therefore, when the reclaiming assembly 18 takes the material, first the reclaiming assembly 18 will move vertically downward under the drive of the Z-direction moving member 192 to contact the upper surface of the display panel, and as the reclaiming assembly 18 continues to be vertical Moving downward, the vertical upward force received by the reclaiming sucker 23 from the display panel will become greater and greater, that is, the vertical upward force received by the reclaiming assembly 18 from the vertical upward force provided by the display panel. The force will be larger and larger, so the pressure detected by the first pressure sensor will be larger and larger. It is set when the first negative pressure vacuum pump 24 is in a non-working state, the pressure value detected by the first pressure sensor reaches a certain value. A specific value indicates that the suction cup opening of the reclaiming suction cup 23 is sufficiently close to the upper surface of the display panel at this time, the Z-direction moving member 192 stops moving downward after obtaining the relevant signal, and the first negative pressure switch 25 is turned on after obtaining the relevant signal , Make the first negative pressure vacuum pump 24 work to pump the suction cup 23 through its suction end, so that negative pressure is generated in the suction cup 23, thereby firmly sucking the display panel, according to the suction cup 23 The pressure between it and the display panel controls the downward movement of the Z-direction moving part 192 and controls the work of the first negative pressure vacuum pump 24, which is beneficial to avoid the lack of adhesion between the reclaiming sucker 23 and the display panel, which may cause reclaiming. The component 18 fails to take the material, and at the same time, it is more beneficial to avoid the excessive pressure between the take-up sucker 23 and the display panel, which may cause damage to the display panel.

Moreover, when the reclaiming assembly 18 discharges materials, first the reclaiming assembly 18 will move vertically downward under the drive of the Z-direction moving member 192, and at the same time, the display panel sucked by the reclaiming assembly 18 will also move downwards, and then touch To the bottom surface of the product frame 15 and other display panels or fixture platforms 26 contained in the product frame 15, as the reclaiming assembly 18 continues to move vertically downwards, the display panel, the reclaiming suction cup 23 and the reclaiming assembly 18 receive The vertical upward force provided by the bottom surface of the product frame 15 and other display panels or fixture platforms 26 contained in the product frame 15 will become greater and greater, so the pressure detected by the first pressure sensor will become greater and greater. Set when the first negative pressure vacuum pump 24 is working, the pressure value detected by the first pressure sensor reaches another specific value, indicating that the display panel has been attached to the bottom surface of the product frame 15 and other products contained in the product frame 15 at this time. On the display panel or jig platform 26, the Z-direction moving part 192 stops moving downward after obtaining the relevant signal, and the first negative pressure switch 25 is closed after obtaining the relevant signal, so that the first negative pressure vacuum pump 24 stops working, so that the material is reclaimed. The negative pressure environment in the suction cup 23 is destroyed, thereby releasing the display panel, and controlling the downward movement degree of the Z-direction moving member 192 according to the pressure measured by the first pressure sensor, and controlling the operation of the first negative pressure vacuum pump 24. It is beneficial to avoid damage to the display panel due to excessive pressure.

For the jig platform 26, it can be set in any suitable manner. See FIG. 8. In the illustrated embodiment, the jig platform 26 includes a plurality of flat suction cups 27. A suction port, a second negative pressure vacuum pump and a second negative pressure switch are also provided on the Y-direction moving member 282, and the suction end of the second negative pressure vacuum pump is in communication with the suction port of the flat suction cup 27, so The signal output terminal of the second negative pressure switch is electrically connected to the second negative pressure vacuum pump to control the opening and closing of the second negative pressure vacuum pump.

Wherein, the opening and closing operations of the second negative pressure switch can be controlled by a worker by operating buttons on the operation button box 4 outside the device. Of course, optionally, the opening and closing of the second negative pressure switch can also be automatically controlled by the central control system of the device.

For example, when the reclaiming assembly 18 drives the display panel to move vertically downwards to contact the fixture platform 26, the suction cup opening of the flat suction cup 27 will be first touched. The suction cup opening can be flexible to buffer and protect the display panel. The reclaiming assembly 18 continues to move vertically downwards driven by the Z-moving member 192, the display panel and the fixture platform 26 are in further contact and the direct pressure between each other gradually increases, and then the reclaiming assembly 18 is set to release the display panel , So that the display panel is completely dependent on the fixture platform 26. At this time, the second negative pressure switch can be set to turn on, so that the second negative pressure vacuum pump works to pump the flat suction cup 27 through its suction end, so that Negative pressure is generated in the flat suction cup 27, thereby firmly sucking the display panel, preventing the display panel from slipping and damage during the movement of the Y-direction moving member 282; and when the reclaiming assembly 18 takes the material from the jig platform 26, first take the material Driven by the Z-moving member 192, the assembly 18 will move vertically downwards until it comes into contact with the upper surface of the display panel. As the reclaiming assembly 18 continues to move vertically downwards, the reclaiming suction cup 23 receives from the display panel. The vertical upward force provided will be greater and greater, so the pressure detected by the first pressure sensor will be greater and greater, which can be set before the first pressure sensor sends a signal to make the first negative pressure vacuum pump 24 work. The central control system is set to control the second negative pressure switch to turn off, so that the second negative pressure vacuum pump stops working, and the flat suction cup 27 releases the display panel, which is more beneficial to avoid damage to the display panel.

Another aspect of the present invention also provides a display panel macro-inspection device, which includes the material taking and feeding mechanism for the display panel macro-inspection device according to the present invention. The display panel macroscopic inspection device is particularly suitable for the macroscopic inspection of silicon-based LED display panels.

Preferably, the detection mechanism 14 includes a sodium lamp assembly 30 and a metal surface inspection lamp assembly 29. The sodium lamp assembly 30 is located above the metal surface inspection lamp assembly 29 and has a lamp shade covering the sodium lamp. opened. The metal surface inspection lamp assembly 29 can detect scratches and dust on the surface of the display panel, and the sodium lamp assembly 30 can detect the thickness uniformity of the surface film of the display panel. The staff can turn the metal surface inspection lamp assembly 29 universal joints to perform different angle light inspections. The sodium lamp adjusts the illuminance by adjusting the height. The two lamps are used separately, and the sodium lamp is closed by setting the lampshade. The sodium lamp can be turned on without turning off the sodium lamp. Or close the lampshade and add a metal surface inspection lamp to switch the light source, so that multiple light sources can be used in a device to detect the display panel and improve the inspection efficiency.

It can be understood that, in the display panel macroscopic inspection device, the position of the inspection mechanism 14 corresponds to the inspection station, and also corresponds to the position where the fixture platform 26 moves to the front end of the Y-direction rail, and corresponds to the display panel macroscopic inspection The outer cover of the device is located at the position of the detection window 31 on the front wall.

In addition, for the display panel macroscopic inspection device of the present invention, it further includes an outer cover, the display panel macroscopic inspection device includes a base 0, the outer cover is disposed on the base 0, and the outer cover includes a front wall disposed oppositely And the rear wall 10 and the left wall 9 and the right wall 2 respectively connecting the front wall and the rear wall 10 on both sides, the front wall is formed with a detection window 31, wherein, along the horizontal circumferential direction of the outer cover The rear wall 10, the left wall 9 and the right wall 2 are all divided into at least two parts, and each of the parts is formed in the form of a door that can be opened outwards.

In the illustrated cover for the display panel macroscopic inspection device, the rear wall 10, the left wall 9 and the right wall are all formed in a form including a plurality of doors, and by opening the rear wall 10, the left wall 9 or the right wall 2 The door makes it possible to access the inside of the outer cover through the door on the rear wall 10, the left wall 9 or the right wall 2, such as the internal picking and feeding mechanism or the detection mechanism, so that the staff can conveniently display the to-be-detected display when needed. The panel is loaded to the loading station in the outer cover, or the completed detection display panel at the unloading station in the outer cover is taken out, or the part of the feeding and feeding mechanism or a part of the inspection mechanism is abnormal. Maintenance, therefore, the outer cover is conducive to the versatility of actual detection operations and the convenience of maintenance and repair of the mechanism installed in the outer cover.

In the display panel macro-inspection device of the illustrated embodiment, specifically, it is specifically used to perform macro-inspection on a silicon-based LED display panel, that is, the display panel is a silicon-based LED display panel, and, further, the The display panel macro-detection device also includes a detection mechanism 14 arranged on the upper surface of the base 0 and covered in the outer cover. The detection mechanism 14 includes a sodium lamp assembly 30 and a metal surface inspection lamp assembly 29. The sodium lamp assembly 30 has A lampshade is placed on the sodium lamp, and the lampshade is openable. That is to say, the display panel macro detection device involved in this embodiment can complete the macro detection of the display panel by two different light sources in the outer cover by switching the sodium lamp and the metal surface inspection lamp, and, according to actual needs, implement the detection mechanism 14 or even It can also include more detection light sources, and the use of one device to complete multiple light source detection is beneficial to improve the detection efficiency of the staff, and it also saves the need to set up multiple devices, which leads to empty space and increased costs. However, it can be understood that as the number of light sources included in the detection mechanism 14 increases, the complexity of the structure of the feeding and feeding mechanism and the detection mechanism in the outer cover may increase. At this time, the above is conducive to the variety and flexibility of the actual detection operation. The advantages of flexibility and convenience for the maintenance of the mechanism installed in the outer cover will be more prominent.

Specifically, taking the illustrated embodiment as an example, the display panel macroscopic detection device further includes a material picking and feeding mechanism arranged on the upper surface of the base 0 and covered in the outer cover, and the material picking and feeding mechanism includes a material picking and feeding mechanism close to the rear wall. 10 set up the loading station, the qualified material unloading station and the unqualified material unloading station. The rear wall 10 is divided into three parts in the horizontal direction to form three doors that can be opened outwards. The three doors correspond to the positions of the loading station, the qualified material unloading station and the non-qualified material unloading station respectively, so that it is convenient for the staff to feed the materials to the loading station, Or the operation of cutting materials from the qualified material blanking station and the non-qualified material blanking station.

In addition, the front wall and the rear wall 10 both include a frame and an antistatic brown acrylic glass mounted on the frame. Using antistatic brown acrylic glass as the door allows the staff to observe the inside of the outer cover. The working state of the mechanism is conducive to the operation of the staff, and it is also conducive to avoiding stray light from interfering with the detection of the display panel. The antistatic properties of the glass can effectively prevent static electricity from the display panel in the outer cover, especially the silicon-based LED Damage to the display panel.

Preferably, the left wall 9 and the right wall 2 are respectively divided into two parts along the horizontal direction to form a pair of doors, that is, both the left wall 9 and the right wall 2 include two parts that can be opened symmetrically from the middle. The single door can thereby make the left and right sides of the outer cover completely open, which is more conducive to the overhaul and maintenance of the mechanism installed in the outer cover. Moreover, in this embodiment, both the left wall 9 and the right wall 2 comprise metal plate material door bodies.

Referring to Fig. 1, an EFU filter unit 1 is provided on the top of the outer cover. The EFU filter unit 1 can be used to remove dust and blow the entire outer cover to ensure that the cleanliness level inside the outer cover meets the standard.

In addition, in order to facilitate the operation of the staff, the display panel macro detection device is provided with an operation button box 4 at a position below the detection window 31, and the front wall is provided with a display 7 and a touch screen 6. The display 7 and the touch screen 6 are both located on the left side of the detection window 31 or both on the right side of the detection window 31. During the detection, the staff needs to stand at the detection window 31. Therefore, the operation button The box 4 is directly arranged under the detection window 31, and the display 7 and the touch screen 6 are arranged on the front wall and located on the same side, which are conducive to the convenience of operation and monitoring of the staff.

And, in order to protect the staff, further, a safety grating is provided on the frame of the detection window 31, and the safety grating includes a transmitting end and a receiving end respectively arranged on two opposite frames of the detection window 31 , The generating end can emit an infrared beam, which passes through the detection window 31 and is received by the receiving end. When the body of the worker enters the outer cover through the detection window 31, the body of the worker acts as a block The function makes the receiving end unable to receive the complete signal. At this time, the macro detection device of the display panel will issue a warning to remind the staff.

For example, the display panel macroscopic detection device includes a central control system (located in the electric control box 3 below the base 0), and the outer cover may also be provided with an alarm lamp 8 on the front wall side. The signal of the alarm lamp 8 The input terminal is electrically connected to the signal output terminal of the central control system, and the first signal input terminal of the central control system is electrically connected to the signal output terminal of the safety light grid. When the signal output terminal of the safety light grid is connected to the signal output terminal of the central control system When the first signal input terminal sends out a signal to indicate that an object passes through the detection window 31, the warning light 8 flashes to remind the staff.

The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical concept of the present invention, many simple modifications can be made to the technical solution of the present invention. Including each specific technical feature combined in any suitable way. In order to avoid unnecessary repetition, various possible combinations are not described separately in the present invention. However, these simple modifications and combinations should also be regarded as the disclosed content of the present invention, and all belong to the protection scope of the present invention.

Claims

A material taking and feeding mechanism for a display panel macroscopic inspection device, the display panel macroscopic inspection device comprising a base (0) and a detection mechanism (14), characterized in that the material taking and feeding mechanism includes:

X-direction linear motion module (20), both ends of the X-direction linear motion module (20) are supported on the upper surface of the base (0) through brackets (21), so that the X-direction linear motion The module (20) is spaced apart from the upper surface of the base (0), and the X-direction linear motion module (20) includes an X-direction guide rail (201) and an X-direction guide rail (201) capable of moving along the X-direction guide rail (201). The X-direction moving part (202), the X-direction guide rail (201) extends along a first horizontal direction;

Y-direction linear motion module (28), the Y-direction linear motion module (28) is arranged on the base (0) and passes under the X-direction linear motion module (20), and the Y-direction The linear motion module (28) includes a Y-direction guide rail (281) and a Y-direction moving member (282) capable of moving along the Y-direction guide rail (281), and the Y-direction guide rail (281) extends along a second horizontal direction, The second horizontal direction is perpendicular to the first horizontal direction, and the detection mechanism (14) is installed on the base (0) close to the front end of the Y-direction guide rail (281);

Z-direction linear motion module (19), the Z-direction linear motion module (19) includes a Z-direction guide rail (191) and a Z-direction moving part (192) capable of moving along the Z-direction guide rail, the Z-direction guide rail (191) Extending in the vertical direction and connected to the rear side of the X-direction moving member (202);

A reclaiming component (18), the reclaiming component (18) is arranged at the lower end of the Z-direction moving part (192);

A jig platform (26), the jig platform (26) is supported on the Y-direction moving part (282).
The material fetching and feeding mechanism for a display panel macroscopic inspection device according to claim 1, wherein the material fetching and feeding mechanism further comprises an upper material position unit (111) located behind the X-direction linear motion module (20), Qualified material lowering level unit (112) and unqualified material lowering level unit (113), the upper material level unit (111), qualified material lowering level unit (112) and unqualified material lowering level unit (113) ) Are arranged at intervals along the first horizontal direction, and the rear end of the Y-direction linear motion module (28) is located between the upper material position unit (111) and the qualified material lower material position unit (112) , And in the second horizontal direction, the position of the reclaiming assembly (18) corresponds to the upper material level unit (111), the qualified material lower material level unit (112), and the unqualified material lower material level unit (113) location.
The material fetching and feeding mechanism for the display panel macroscopic inspection device according to claim 2, wherein the upper material level unit (111), the qualified material lower material level unit (112) and the unqualified material lower material level unit (113) Each includes a rectangular material level, and the rectangular material level is composed of a first stop (161), a second stop (162), and a first push block (171) sequentially arranged on the four sides of the rectangular material level. ) And a second push block (172), wherein the first stop (161) and the first push block (171) extend along the first horizontal direction, and the second stop (162) ) And the second push block (172) extend along the second horizontal direction, and the first push block (171) and the second push block (172) are respectively arranged to be able to move along the second horizontal direction Direction and the first horizontal direction.
The material fetching and feeding mechanism for a display panel macroscopic inspection device according to claim 3, wherein the first push block (171) and the second push block (172) respectively comprise a push block cylinder (174) And a push block body (173), the cylinder tube of the push block cylinder (174) is fixed to the upper surface of the base (0), and the piston rod of the push block cylinder (174) extends from the cylinder tube and The push block body (173) is connected to the protruding end, so that the push block body (173) of the first push block (171) and the push block body (173) of the second push block (172) Each can move in the second horizontal direction and the first horizontal direction.
The taking-and-feeding mechanism for a display panel macroscopic inspection device according to claim 1, wherein the taking-out assembly (18) comprises a taking-out support (22) connected to the lower end of the Z-direction moving part (192). ), a reclaiming suction cup (23) arranged on the reclaiming bracket (22), and a first negative pressure vacuum pump (24) arranged on the reclaiming bracket (22) or the Z-direction moving part (192) ) And a first negative pressure switch (25), the suction cup (23) of the suction cup (23) faces downward, and the upper end has a suction port, and the suction end of the first negative pressure vacuum pump (24) is connected to the suction cup (23) is connected to the suction port, and the signal output end of the first negative pressure switch (25) is electrically connected to the first negative pressure vacuum pump (24) to control the first negative pressure vacuum pump (24) Turn on and off. 6. The material taking and feeding mechanism for the display panel macroscopic inspection device according to claim 5, characterized in that, the take-out suction cup (23) comprises a plurality of which are respectively arranged on the take-out support (22) The position is adjustable.
The material taking and feeding mechanism for a display panel macroscopic inspection device according to claim 6, wherein the material taking bracket (22) comprises two first rods extending along the second horizontal direction and spaced apart from each other. And a second rod connected between the two first rods. The second rod can slide along the longitudinal direction of the first rod. There are two reclaiming suction cups (23), and each of the reclaiming suction cups (23) can slide along the longitudinal direction of the second rod.
The material taking and feeding mechanism for a display panel macroscopic inspection device according to claim 5, wherein the material taking component (18) further comprises a vertical upward pressure for detecting the material taking component (18) The signal output terminal of the first pressure sensor is electrically connected with the signal input terminal of the Z-direction moving part (192) and the first negative pressure switch (25) respectively. To