WO2012144703A1

WO2012144703A1 - Led chip classifying apparatus

Info

Publication number: WO2012144703A1
Application number: PCT/KR2011/007505
Authority: WO
Inventors: 정태진
Original assignee: 주식회사 이노비즈
Priority date: 2011-04-21
Filing date: 2011-10-11
Publication date: 2012-10-26
Also published as: TWI486599B; TW201303325A

Abstract

The present invention relates to a LED chip classifying apparatus. The LED chip classifying apparatus comprises: a sorting stage which loads a supply plate having an attachment sheet on which LED chips are attached, and is movable at least horizontally in four directions; an empty stage which is spaced from the sorting stage, loads grade-by-grade classification plates having attachment sheets on which the LED chips are to be attached, and is movable at least horizontally in four directions; a pickup unit which has at least one swing arm rotating back and forth to both the sorting stage and the empty stage, and has a picker provided on the swing, which picks up LED chips on the supply plate, and releases the picked-up LED chips on the classification plate; and an unloading pressurization unit and a loading pressurization unit which are respectively provided on the sorting stage and the empty stage, and pressurize the attachment sheets of the supply plate and the grade-by-grade classification plate toward the pickup unit. Accordingly, an LED chip classifying apparatus capable of rapidly classifying LED chips is provided.

Description

LED Chip Sorter

The present invention relates to an LED chip sorting apparatus, and more particularly, to an LED chip sorting apparatus capable of quickly classifying LED chips.

LED (Light Emitting Diode) is a kind of light emitting device that emits light by power supply and is also called a Luminescent diode.

This LED is small, long life, low power consumption, high speed response, and has recently been widely used as a backlight unit of various display devices that require a light source, a light source for small lamps and various instruments have.

The LED is manufactured in the form of a small chip using a semiconductor process. A general LED chip manufacturing process is an epitaxial process (EPI) for preparing an epi wafer on a substrate, which is a base material, and a wafer for manufacturing a plurality of LED chips. Package process for packaging LED chip manufactured in chip process and chip process, inspection process for inspecting LED chip through package process, and classifying LED chip according to the result inspected in inspection process The process takes place.

Among these, the classification process classifies the LED chips inspected in the inspection process into good and defective products, and classifies the LED chips of the good by grade according to their performance and characteristics.In the manufacturing process of the LED chip, the LED chip is used to perform the classification process. A chip sorting device is provided.

In general, the conventional LED chip sorting apparatus 1 is a sorting unit 10 for classifying the LED chips (L) delivered in the inspection process by grade, as shown in a simplified block diagram in Figure 1, and the sorting unit 10 It includes a loading unit 20 for classifying and loading the classified LED chips (L) by the grade, and the pickup unit 30 for transferring the LED chip (L) from the sorting unit 10 to the loading unit (20).

The sorting unit 10 receives the supply plate 11 to which the LED chips L, which have been inspected in the inspection process, is attached to the sorting stage 13 horizontally installed to classify the LED chips L by grade, and is transferred from the inspection process. And a sorting transfer unit (not shown) for transferring the supply plate 11 to the sorting stage 13.

In addition, the stacking unit 20 includes a bin stage 23 horizontally installed to allow the sorting plate 21 to wait to classify and load the LED chips L sorted by the sorting stage 13 for each class, and the bin stage 23. ) Is provided with a loading transfer unit (not shown) for moving the completed sorting plate 21 to the loading magazine 25.

On the other hand, the pickup unit 30 is a swing arm 31 for reciprocating rotation between the sorting stage 13 and the empty stage 23, a swing arm driver 33 for rotating the swing arm 31, and a swing arm ( A picker 35 which is provided at the free end of 31 and picks up the LED chip L on the supply plate 11 positioned on the sorting stage 13 and moves it to the sorting plate 21 on the empty stage 23 side; A lift driver 37 which drives the swing arm 31 or the picker 35 in a Z-axis lift and drop to a pickup and a pickup release position is provided.

The conventional LED chip sorting apparatus 1 classifies the LED chips L, which are transferred through the buffer part from the inspection process in the manufacturing process of the LED chip L, by the sorting unit 10 by grade, and the classified LED chips L By loading the) in the loading unit 20 for each grade, the LED chip (L) can be classified by the grade according to the performance and characteristics.

By the way, in the conventional LED chip sorting device 1, the swing arm 31 is rotated to the sorting stage 13 and the empty stage 23, and then the swing arm 31 is used to pick up or release the LED chip L. 31) or because the picker 35 needs to be lifted and lowered on the Z axis using the lift driver 37, there is a problem that the sorting speed of the LED chip is slowed down as the Z axis lift driving time increases.

Accordingly, it is an object of the present invention to provide an LED chip sorting apparatus capable of quickly classifying LED chips.

According to the present invention, there is provided an LED chip sorting apparatus, comprising: a sorting stage for loading a supply plate having an attachment sheet to which LED chips are attached and capable of flowing in at least a plane direction; An empty stage installed spaced apart from the sorting stage, the classifying plate having an attachment sheet to which the LED chips are attached, and capable of flowing in at least a plane direction; A pickup unit having at least one swing arm reciprocating to both the sorting stage and the empty stage, and a picker provided on the swing arm to pick up and release the LED chip of the supply plate and to pick-up and release the pick-up plate from the sorting plate; And an unloading pressurizing unit and a loading pressurizing unit which are provided on the sorting stage and the empty stage, respectively, to press the attachment sheets of the supply plate and the classification sorting plate toward the pickup unit. .

Here, it is preferable that the unloading pressurizing unit has an unloading pressurizing member for pressing the attachment sheet of the supply plate toward the pickup unit and an unloading pressurizer for driving the unloading pressurizing member.

And, it is effective that the loading pressurizing unit has a loading pressurizing member for urging the attachment sheet of the sorting plate toward the pickup unit and a loading pressurizer for driving the loading pressurizing member.

On the other hand, when the picker is located at the pick-up position of the sorting stage, the unloading pressurizing unit controls the driving of the unloading pressurizing unit so as to press the attachment sheet of the supply plate on which the LED chip is attached to the picker side, and the picker of the sorting stage. When positioned in the pick-up release position, it is more preferable that the loading pressurizing unit further comprises a control unit for controlling the driving of the loading pressurizing unit to press the attachment sheet of the sorting plate toward the picker side.

At this time, the sorting stage and the empty stage are more effectively arranged vertically.

Alternatively, the sorting stage and the empty stage are preferably arranged vertically opposite to each other.

Alternatively, the sorting stage and the empty stage are effectively arranged horizontally.

Alternatively, one of the sorting stage and the empty stage may be disposed vertically, and the other may be disposed horizontally.

And, it is preferable that a plurality of swing arms are provided, and a picker is provided in each of the swing arms.

At this time, the pickers are provided in pairs which are repeatedly positioned at the pick-up position of the sorting stage and the pick-up release position of the sorting stage by rotating the swing arm; The unloading pressurizing unit controls the attaching sheet of the supply plate to which the LED chip is attached to the picker side of the pick-up position, and the loading pressurizing unit controls the pressurizing sheet of the sorting plate to the picker side of the pick-up release position. It is preferable to further include a control unit.

On the other hand, it further comprises an information sensor provided on the sorting stage to detect the coordinates and the grade of the LED chips attached to the supply plate; The controller controls the sorting stage and the unloading pressure unit to move the LED chips of the same grade among the LED chips attached to the supply plate to the sorting plate loaded on the empty stage, based on the coordinates and the grade of the LED chips detected by the information sensor. It is desirable to control the driving of the loading press unit, the pickup unit and the bin stage.

The apparatus may further include a sorting magazine for storing sorting plates for different grades, and a sorting plate transfer means for reciprocating one of the sorting plates loaded in the stacking magazine from the stacking magazine to the empty stage; The control unit controls the driving of the stacking magazine and the sorting plate transfer means so that the LED chips of the same grade among the LED chips attached to the supply plate can be loaded on the sorting plate of the corresponding class among the sorting plates loaded on the stacking magazine. effective.

According to the present invention, there is provided an LED chip sorting apparatus capable of quickly classifying an LED chip.

1 is a plan view of a conventional LED chip sorting device,

2 is an enlarged view of area “A” of FIG. 1;

3 is a schematic block diagram of an LED chip sorting apparatus according to the present invention;

4 and 5 are a left and right perspective view of the main portion of the LED chip sorting apparatus according to the present invention,

6 is a control block diagram of the LED chip classification apparatus according to the present invention,

7 to 10 is an enlarged front view showing the main drive state of the LED chip sorting apparatus of Figs.

11 and 12 are enlarged front views of main parts of the LED chip sorting apparatus according to another embodiment of the present invention,

13 and 16 are enlarged plan views of main parts of the LED chip sorting apparatus according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

As shown in FIGS. 3 to 6, the LED chip sorting apparatus 101 according to the present invention includes a sorting unit 300 and a sorting unit (300) for classifying the LED chips (L) delivered in the inspection process of the device by grade. Loading unit 400 for classifying and loading the LED chips (L) classified in the 300 by grade, pickup unit 500 for transferring the LED chip (L) from the sorting unit 300 to the loading unit 400, The control unit 600 controls the driving of the device.

The sorting unit 300 includes a vertical sorting stage 310 for vertically loading the supply plate 311 to which the LED chips L are attached, and the sorting stage 310 in a vertical, front and rear or left and right directions (for convenience of description below). Press the LED chip L attached to the feed plate 311 loaded on the sorting stage 310 and the pick-up unit 500 to reciprocate in the " horizontal direction " It includes an unloading pressure unit 330.

The sorting stage 310 is coupled to the sorting stage driver 321 which will be described later so that the plate surface is disposed in the vertical direction, the unloading driving space of the unloading pressure unit 330 is located in the center area of the sorting stage 310. The feed plate support slot 318 into which the feed plate 311 is inserted is formed at both end portions in the vertical direction. The sorting stage 310 is provided with an information sensor 315 such as a barcode reader which detects an identification mark such as a barcode attached to the supply plate 311 and transmits it to the control unit 600.

Here, the supply plate 311 loaded on the sorting stage 310 may have a frame shape in which a central space corresponding to the unloading driving space of the sorting stage 310 is formed, and an adhesive material is included in the central space. Attachment sheet 314 such as a blue tape may be provided. The supply plate 311 is loaded on the sorting stage 310 with the LED chips L having the inspection process completed on the attachment sheet 314. The supply plate 311 is provided with an identification mark such as a bar code including the coordinate information of the LED chips L and the grade information of the LED chips L positioned at the corresponding coordinates.

When the LED chip sorting apparatus 101 according to the present invention is provided with the LED chip L inspection apparatus that performs the inspection process in the LED chip L manufacturing process, the LED chips L transmitted from the inspection process are supplied. It is attached to the plate 311, and then supply plate transfer means (not shown) such as a gripper through a buffer stage (not shown) or a buffer moving machine (not shown) provided between the inspection process and the LED chip (L) sorting device It can be delivered to the sorting stage 310 by using. At this time, the supply plate 311 transmitted to the sorting stage 310 is switched in the direction to be transmitted in the vertical direction. Here, the direction change of the supply plate 311 may be made in the process of being transferred to the buffer stage (not shown) or the buffer moving machine (not shown) in the inspection process.

Alternatively, when the LED chip sorting apparatus 101 according to the present invention is provided as a separate device from the LED chip (L) inspection apparatus in the LED chip (L) manufacturing process, the LED chip (L) through the inspection process is loaded A separate supply plate storage unit (not shown) capable of accommodating a plurality of supply plates 311 is provided adjacent to the sorting stage 310, and a supply plate using a supply plate transfer means (not shown) such as a gripper. The supply plate 311 stored in the storage unit (not shown) may be transferred to the sorting stage 310. Also in this case, the supply plate 311 transmitted to the sorting stage 310 is changed in direction so as to be transmitted in a vertical direction. Here, the change of the direction of the supply plate 311 may be provided by providing a structure of the supply plate storage unit (not shown) as a vertical storage structure.

The sorting stage driving unit 320 supports the sorting stage 310 in the vertical direction, and the sorting stage driving body 321 and the sorting stage driving body 321 for reciprocating the sorting stage 310 in all four directions. It is composed of a sorting stage driver 327 for driving.

Here, the sorting stage driver 321 is coupled to the sorting stage support 323 disposed in a vertical direction on one side inside the casing (not shown) of the device, so as to reciprocally move in a horizontal direction with respect to the sorting stage support 323. The sorting stage horizontal driver 324 and the sorting stage vertical driver 325 coupled to the sorting stage horizontal driver 324 to be reciprocated in a vertical direction to support the sorting stage 310 may be configured. have. At this time, the installation position of the sorting stage horizontal drive body 324 and the sorting stage vertical drive body 325 can be changed to the position of the other party according to the conditions, the moving direction of the sorting stage horizontal drive body 324 is the casing of the device ( It is moved in the front and rear or left and right directions from the inside of the (not shown).

The sorting stage driver 327 may include a sorting stage horizontal driver 328 for reciprocating the sorting stage horizontal driver 324 in a horizontal direction, and a sorting stage for reciprocating the sorting stage vertical driver 325 in a vertical direction. It may be configured as a vertical driver 329.

The unloading pressurizing unit 330 is provided in the unloading driving space of the sorting stage 310 to unload the mounting sheet 314 of the supply plate 311 loaded on the sorting stage 310 toward the pickup unit 500. The pressurizing member 331 and the unloading pressurizer 333 for driving the unloading pressurizing member 331 may be configured.

Here, the unloading pressing member 331 may be provided in the form of a pressing pin for pressing a region of the attachment sheet 314 to press each of the LED chip (L) to the pickup unit 500 side individually, Therefore, it may be provided in the form of a pressure chuck to press the entire area of the attachment sheet 314 to press the entire LED chip (L) toward the pickup unit 500.

The unloading pressurizer 333 drives the unloading pressurizing member 331 in the pressing direction and the return direction according to the control signal of the controller 600. The unloading pressurizer 333 may be provided in various forms such as a pneumatic cylinder or a solenoid.

On the other hand, the loading unit 400 is a vertical bin stage 410 and the empty stage 410 to vertically load the sorting plate 411 to which the LED chip (L) transmitted from the sorting unit 300 is to be attached for each grade; And an attachment sheet of the sorting plate 411 stacked on the bin stage driving unit 420 and the bin stage driving unit 420 for reciprocating in the vertical, front and rear or left and right directions (collectively referred to as "horizontal direction" for convenience of description). The loading press unit 430 pressurizing the 414 to the pickup unit 500 side, the loading magazine 440 for accommodating the classification plate 411 for each grade, and the classification plate 411 with the empty stage 410 and the loading magazine ( 440 includes a sorting plate transfer means 450 for reciprocating both sides.

The empty stage 410 is coupled to the empty stage driver 421 to be described later so that the plate surface is disposed in the vertical direction, the loading driving space of the loading pressure unit 430 is formed in the central region of the empty stage 410 The sorting plate support slot 418 into which the sorting plate 411 is inserted is formed at both end portions in the vertical direction.

Here, the sorting plate 411 loaded on the empty stage 410 has the same structure as the supply plate 311 used in the sorting unit 300 described above, and corresponds to the loading driving space of the empty stage 410. It may have a frame shape in which a central space is formed, and an attachment sheet 414 such as a blue tape including an adhesive material may be provided in the central space. Grade LED chips L transmitted by the pickup unit 500 from the sorting unit 300 are attached to the attachment sheet 414.

At this time, the bin stage 410 is preferably disposed spaced apart from the sorting stage 310, as shown in Figures 4 and 5 and 7 to 12, which is the sorting stage 310 and the empty stage By arranging all the 410 vertically and facing each other, the planar installation space of the sorting stage 310 and the empty stage 410 can be minimized. Accordingly, the planar volume of the device can be minimized and it is very advantageous to secure the installation space.

The empty stage driving unit 420 supports the empty stage 410 in the vertical direction, while the empty stage driving unit 421 reciprocates the empty stage 410 in all directions in the vertical plane direction, and the empty stage driving unit 421. It consists of a bin stage driver 427 for driving.

Here, the bin stage driver 421 is coupled to the bin stage support 423 disposed in a vertical direction on one side inside the casing (not shown) of the device so as to reciprocate in a horizontal direction with respect to the bin stage support 423. The empty stage horizontal driver 424 and the empty stage vertical driver 425 coupled to the reciprocating movement in the vertical direction with respect to the empty stage horizontal driver 424 may support the empty stage 410. have. At this time, the installation position of the empty stage horizontal drive body 424 and the empty stage vertical drive body 425 can be changed to the position of the other party according to the conditions, the moving direction of the empty stage horizontal drive body 424 is the casing of the device ( It is moved in the front and rear or left and right directions from the inside of the (not shown).

In addition, the bin stage driver 427 includes a bin stage horizontal driver 428 for reciprocating the bin stage horizontal driver 424 in a horizontal direction, and a bin stage for reciprocating the bin stage vertical driver 425 in a vertical direction. It may be configured as a vertical driver 429.

The loading and pressing unit 430 is provided in the loading driving space of the empty stage 410 and the loading pressing member for pressing the attachment sheet 414 of the sorting plate 411 loaded on the empty stage 410 toward the pickup unit 500 ( 431 and a loading pressurizer 433 for driving the loading pressurizing member 431.

Here, the loading pressing member 431 may be provided in the form of a pressing pin for pressing a region of the attachment sheet 414 to press each of the LED chip (L) to the pickup unit 500 side, in some cases, It may be provided in the form of a pressure chuck to press the entire area of the attachment sheet 414 to press the entire LED chip (L) to the pickup unit 500 side.

The loading pressurizer 433 drives the loading pressurizing member 431 in the pressing direction and the return direction according to the control signal of the controller 600. The loading presser 433 may be provided in various forms such as a pneumatic cylinder or a solenoid.

Meanwhile, as shown in FIG. 3, the loading magazine 440 includes a magazine body 441 having a plurality of grade loading slots 442, and a grade loading slot 442 of any one of the grade loading slots 442. Has a magazine driver 443 which drives the magazine body 441 adjacent to the sorting plate transfer means 450.

The magazine body 441 may have a rectangular cylindrical shape having at least one side open while having a predetermined length, and in a state in which the open side faces the empty stage 410 side, the longitudinal direction is horizontally reciprocated to move horizontally. To be installed in a casing (not shown) of the device. As a result, the graded loading slots 442 formed in the magazine body 441 are also disposed in the vertical direction.

The magazine driver 443 has a magazine such that the graded loading slot 442 selected from the graded loading slots 442 is located adjacent to the gripper 451 of the classification plate transfer means 450 which will be described later according to the control signal of the controller 600. The main body 441 is reciprocated in the horizontal direction.

The sorting plate transfer means 450 includes a gripper 451 for holding and releasing the sorting plate 411 loaded on the magazine body 441 or the empty stage 410, and the gripper 451 for the empty stage 410. ) And a gripper feeder 453 that reciprocates to both sides of the loading magazine 440. The sorting plate transfer means 450 moves any selected one of the sorting plates 411 for each grade loaded on the magazine body 441 to the empty stage 410 according to the control signal of the controller 600, or the empty stage. The sorting plate 411 loaded on the 410 is moved to the corresponding stacking slot 442 of the magazine body 441.

Meanwhile, the pickup unit 500 includes a swing arm 510 for reciprocating both sides of the sorting stage 310 and the empty stage 410, a swing arm driver 520 for rotating the swing arm 510, and a swing arm. The picker 530 which is provided at the free end of the 510 and picks up the LED chip L from the supply plate 311 positioned on the sorting stage 310 and moves the picker chip 411 to the sorting plate 411 on the empty stage 410 side. Include.

The swing arm 510 of the pickup unit 500 is rotated between the sorting stage 310 and the empty stage 410 facing each other in a direction perpendicular to each other, and the rotation distance of the swing arm 510 is always constant. Do.

And, the picker 530 is coupled to the free end of the swing arm 510, the nozzle port (not shown) is preferably provided in the form of a suction nozzle in the radial direction. As a result, the nozzle holes (not shown) of the picker 530 are supplied to the sorting stage 310 and the empty stage 410 according to the reciprocating rotation of the swing arm 510, and the sorting plate 411. The

attachment sheets

314 and 414 are positioned in a direction perpendicular to the vertical plane.

Here, it is preferable that the swing arm 510 and the picker 530 be provided in at least one pair to speed up the LED chip L sorting speed.

Of course, in some cases, as shown in FIG. 11, the swing arm 510 and the picker 530 may be provided with a single swing arm 510 and the picker 530. In addition, the pickup unit 500 is to be composed of a pair of swing arm 510 and the picker 530 in a single swing arm driver 520, as shown in Figures 3 to 5 and 7 to 10. 12, each of the independent pairs of swiss arm drivers 520 may have a single swing arm 510 and a picker 530.

Meanwhile, as shown in FIG. 6, the control unit 600 detects an identification mark of the supply plate 311 loaded on the sorting stage 310 in the information sensor 315 provided in the sorting stage 310 to supply the plate. Check the grade of the LED chips (L) loaded on the (311).

Then, the sorting stage of the sorting unit 300 is withdrawn so that the sorting plate 411 of the stacking unit 400 corresponding to the identified level of the LED chip L is removed from the stacking magazine 440 and loaded on the empty stage 410. While controlling the driving of the driving unit 320, the unloading pressure unit 330, and the pickup unit 500, the empty stage driving unit 420, the loading pressure unit 430, and the loading magazine of the loading unit 400 are provided. 440 and the drive of the sorting plate transfer means 450 and the like.

A classification process for each class of the LED chip L by the LED chip classification apparatus 101 according to the present invention having such a configuration will be described with reference to FIGS. 6 to 10.

First, when the supply plate 311 in which the LED chips L of different grades are attached on the attachment sheet 314 is loaded on the sorting stage 310 as shown in FIG. 7, the information sensor 315 is supplied to the supply plate. An identification mark such as a barcode provided in 311 is sensed, and each coordinate of the LED chips L and grade information data of the LED chips L positioned at the corresponding coordinates are transmitted to the controller 600.

Here, the coordinates and grade information of the LED chip (L) attached to the supply plate 311 may be input in the inspection process.

The controller 600 receiving information data according to the coordinates and coordinates of the LED chips L from the information sensor 315 drives the magazine driver 443 of the loading magazine 440 to classify the LED chips L to be classified. The sorting plate 411 stored in the rating stacking slot 442 of the magazine body 441 corresponding to the loading magazine 440 moves to a position where it can be gripped by the gripper 451 of the sorting plate transfer means 450. ).

Then, the control unit 600 controls the driving of the gripper 451 so that the gripper 451 of the classification plate transfer means 450 grips and pulls the classification plate 411 of the corresponding grade from the magazine body 441. When the gripper 451 grips the sorting plate 411, the driving of the gripper conveyer 453 is controlled to move the sorting plate 411 to the empty stage 410 (see FIG. 3).

Then, when the sorting plate 411 is loaded on the empty stage 410, the control unit 600 releases the grip operation of the gripper 451.

On the other hand, when the sorting plate 411 is loaded on the empty stage 410, as shown in Figure 7, the control unit 600 is the LED chip (L) that is the sorting object corresponding to the class of the sorting plate 411 pickup unit 500 Control the driving of the sorting stage driving unit 320 on the basis of the coordinate value of the LED chip (L) received from the information sensor 315 to be located at the pickup position.

When the LED chip L to be sorted is positioned at the pickup position, the controller 600 controls driving of the swing arm driver 520 of the pickup unit 500 so that the picker 530 of one side of the sorting stage 310 The swing arm 510 is rotated to be at the pickup position.

When the picker 530 of one side is located at the pick-up position, the control unit 600 drives the unloading pressurizer 333 of the unloading pressurizing unit 330 of the sorting unit 300 as shown in FIG. The member 331 presses the attachment sheet 314 of the supply plate 311 toward the picker 530.

Then, the LED chip L to be classified is adjacent to the picker 530. At this time, the controller 600 controls the pickup driving of the pickup unit 500 so that the corresponding LED chip L is picked up to the picker 530. do. Here, the pickup drive of the pickup unit 500 may be a suction drive of the picker 530 using an air compressor (not shown).

When the corresponding LED chip L is picked up to the picker 530, the controller 600 releases the unloading pressurizer 333 of the unloading pressurizing unit 330 to return the unloading pressurizing member 331 to its original position. .

On the other hand, when the LED chip (L) to be classified in the picker 530 of one side is picked up, the controller 600 controls the drive of the swing arm driver 520 to pick up the LED chip (L) picked up 530 As shown in FIG. 9, the swing arm 510 is rotated in the opposite direction to be located at the pickup release position of the empty stage 410. At this time, the opposite picker is rotated to the pick-up position of the sorting stage 310 by the rotation of the swing arm 510.

When the picker 530 picking up the LED chip L is located at the pickup release position of the empty stage 410, and the opposite picker rotates to the pickup position of the sorting stage 310, the control unit 600 stores the loading unit 400. The loading pressurizing member 431 of the loading pressurizing unit 433 of the loading pressurizing unit 430 and the unloading pressurizing unit 333 of the unloading pressurizing unit 330 of the sorting unit 300 is driven to the empty stage 410. While the mounting sheet 414 of the sorting plate 411 that is loaded is pressed against the picker 530 side, the unloading pressure member 331 attaches the sheet 314 of the supply plate 311 of the sorting stage 310. ) Is pressed into the picker 530 side. At this time, the sorting stage 310 is already moved so that the LED chip (L) which is another pickup target is located at the pickup position.

Then, the LED chip (L) is attached to the sorting plate 411 loaded on the empty stage 410, the control unit 600, the pick-up unit 500 so that the LED chip (L) is picked up off the picker (530) Control the pickup release operation. In addition, another LED chip loaded on the sorting stage 310 is picked up by the corresponding LED chip (L) to the picker (530).

In this process, both pickers 530 of the pickup unit continuously rotate the sorting stage 310 and the empty stage 410, and the picker positioned on the sorting stage 310 side picks up the LED chip, and at the same time, the opposite bin Pickers located on the stage 410 side are simultaneously picked up and picked up and driven to pick up and unload the LED chip, as shown in FIGS. 9 and 10.

At this time, the sorting stage 310 is pre-driven and controlled so that the next pick-up target LED chip L is positioned at the pick-up position during the swinging of the swing arm 510, and the area where the next pick-up target LED chip is to be picked-up is released. The bin stage 410 is driven in advance to be positioned.

Here, as shown in FIG. 12, even when the pickup unit 500 has a single swing arm 510 and a picker 530 in a pair of independent switch arm drivers 520, both side pickers 530. 9 and 10 may be driven to pick up and unpick up the LED chip for the sorting stage 310 and the empty stage 410 simultaneously and continuously.

In this process, among the LED chips L attached to the supply plate 311 loaded on the sorting stage 310, the LED chips having a grade corresponding to the classification plate 411 loaded on the empty stage 410 ( When all L) are classified, the control unit 600 controls the driving of the gripper 451 and the gripper transporter 453 of the sorting plate transporting means 450 to attach the completed LED chips L from the empty stage 410. The sorting plate 411 is stored in the corresponding loading slot 442 of the magazine body 441 (see Fig. 3).

The LED chips L of different grades among the LED chips L remaining on the supply plate 311 loaded on the sorting stage 310 are classified as the classification plates of each class of the loading part 400 in the same manner as described above. 411) are loaded and sorted.

Meanwhile, in the above-described embodiment, the structure in which the sorting stage 310 and the empty stage 410 of the LED chip sorting apparatus 101 according to the present invention are vertically disposed to face each other, is described. 13 and 14, the sorting stage 310 and the empty stage 410 may be spaced apart vertically or horizontally so that the stacking planes are located on the same plane.

In addition, the LED chip sorting apparatus according to the present invention may have a structure in which the sorting stage 310 is disposed vertically and the empty stage 410 is arranged horizontally, as shown in FIG. 15, and the sorting stage 310 is illustrated in FIG. 16. ) May be arranged horizontally and the bin stage 410 may be arranged vertically.

In these embodiments, the unloading pressurizing unit 330 and the loading pressurizing unit 430 have the same configuration as the above-described embodiment, but correspond to the arrangement structure of the sorting stage 310 and the empty stage 410. It can be arranged in a suitable structure that can perform the function smoothly. In addition, the sorting stage driving unit 320 and the empty stage driving unit 420 may also be arranged in a suitable structure that can smoothly perform the function corresponding to the arrangement structure of the sorting stage 310 and the empty stage 410. have.

In addition, the installation structure of the pickup unit 500, as shown in Figure 13 to 16, the swing section of the swing arm 510 may correspond to the arrangement structure of the sorting stage 310 and the empty stage 410 The picker 530 may be properly changed to a structure such that the picker 530 has a suitable structure so that the LED chip L may be picked up or released in a direction orthogonal to the stacking surface of the sorting stage 310 and the empty stage 410. The swing arm 510 may be installed.

As described above, in the LED chip sorting apparatus 101 according to the present invention, after the swing arm 510 is rotated to the sorting stage 310 and the empty stage 410, a picker (picker) for picking up or releasing the LED chip L is selected. Rather than the 530 directly approaching and separating the LED chip L, the picker 530 is always located at a constant turning radius and pick-up position and pick-up release position, and the unloading pressing unit 330 on the sorting stage 310 side. And the LED chip L approaches and is separated from the picker 530 by the driving of the loading pressure unit 430 on the empty stage 410 side, the driving of the pick-up unit 500 is performed very quickly. As a result, the sorting speed of the LED chip L is further improved.

By speeding up the sorting speed of the LED chip, it contributes to the productivity improvement of the LED chip.

Claims

In the LED chip sorting device,

A sorting stage for loading a supply plate having an attachment sheet to which the LED chips are attached, the sorting stage capable of flowing in at least a planar direction;

An empty stage installed spaced apart from the sorting stage, the classifying plate having an attachment sheet to which the LED chips are attached, and capable of flowing in at least a plane direction;

A pickup unit having at least one swing arm reciprocating to both the sorting stage and the empty stage, and a picker provided on the swing arm to pick up and release the LED chip of the supply plate and to pick-up and release the pick-up plate from the sorting plate;

And an unloading pressurizing unit and a loading pressurizing unit provided on the sorting stage and the empty stage, respectively, to press the attachment sheets of the supply plate and the classification sorting plate toward the pickup unit.
The method of claim 1,

Unloading pressure unit

An unloading pressurizing member which presses the attachment sheet of the supply plate toward the pickup unit,

An LED chip sorting apparatus having an unloading pressurizer for driving the unloading pressurizing member.
The method of claim 1,

The loading press unit

A loading press member for pressurizing the attachment sheet of the sorting plate toward the pickup unit;

LED chip sorting device having a loading presser for driving the loading pressing member.
The method according to any one of claims 1 to 3,

When the picker is located at the pick-up position of the sorting stage, the unloading pressurizing unit controls the driving of the unloading pressurizing unit to press the attachment sheet of the supply plate to which the LED chip is attached to the picker side,

And a control unit for controlling the driving of the loading pressurizing unit so that the loading pressurizing unit presses the attachment sheet of the sorting plate to the picker side when the picker is located at the pickup release position of the sorting stage.
The method of claim 1,

LED sorting device, characterized in that the sorting stage and the bin stage is arranged vertically.
The method of claim 5,

An LED chip sorting apparatus, characterized in that the sorting stage and the bin stage are arranged vertically opposite to each other.
The method of claim 1,

LED sorting device, characterized in that the sorting stage and the bin stage is arranged horizontally.
The method of claim 1,

LED sorting device, characterized in that any one of the sorting stage and the bin stage is arranged vertically, the other is arranged horizontally.
The method of claim 1,

LED chip sorting device is provided with a plurality of swing arms, the picker is provided on each of the swing arms.
The method of claim 9,

The pickers are provided in pairs which are repeatedly positioned simultaneously at the pick-up position of the sorting stage and the pick-up release position of the sorting stage by the swinging of the swing arm;

The unloading pressurizing unit controls the attaching sheet of the supply plate to which the LED chip is attached to the picker side of the pick-up position, and the loading pressurizing unit controls the pressurizing sheet of the sorting plate to the picker side of the pick-up release position. LED chip classification apparatus further comprising a control unit.
The method according to claim 4 or 10,

An information sensor provided on the sorting stage and detecting the coordinates and the grades of the LED chips attached to the supply plate;

The controller controls the sorting stage and the unloading pressure unit to move the LED chips of the same grade among the LED chips attached to the supply plate to the sorting plate loaded on the empty stage, based on the coordinates and the grade of the LED chips detected by the information sensor. LED chip sorting apparatus for controlling the driving of the loading pressure unit, the pickup unit and the empty stage.
The method of claim 11,

A stacking magazine for storing sorting plates for different grades, and a sorting plate transfer means for reciprocating one of the sorting plates loaded in the stacking magazine from the stacking magazine to the empty stage;

The control unit controls the driving of the stacking magazine and the sorting plate transfer means so that the LED chips of the same grade among the LED chips attached to the supply plate can be loaded on the sorting plate of the corresponding class among the sorting plates loaded on the stacking magazine. LED chip sorting device characterized in that.