LED chip ejection device and sorting machine

Abstract

The utility model provides an LED chip ejection device and a sorting machine, the device comprises a bearing assembly, a driving assembly for driving the bearing assembly to move along the X direction and the Y direction, and an ejection assembly located below the bearing assembly, the bearing assembly comprises a blue film, the blue film is used for bonding LED particles, and the blue film is used for bonding the LED particles. The ejection assembly comprises a bearing table, a main ejector pin vertically arranged on the bearing table in a sliding mode, a first nut in threaded connection with the main ejector pin, a second nut in threaded connection with the first nut and a plurality of auxiliary ejector pins fixedly connected with the second nut, the auxiliary ejector pins are vertically connected with the bearing table in a sliding mode, and the main ejector pin stretches out to drive the first nut to rotate. The first nut rotates to drive the second nut to ascend, so that the second nut drives the multiple secondary ejector pins to synchronously ascend, according to the LED chip ejection device, the primary ejector pin firstly makes contact with the LED particles, the LED particles are separated from the blue film, then the secondary ejector pins eject the blue film to support the edges of the LED particles, the LED particles can better make contact with the suction nozzle, and therefore the LED particles can be effectively separated from the blue film, the service life of the LED chip is prolonged, and the service life of the LED chip is prolonged. The transplanting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED production, in particular to an LED chip ejection device and a sorting machine. Background Art

[0002] With the development of SMD LED technology, SMD LED packaging devices are becoming more and more widely used in the lighting field, and the unit price of SMD LEDs is getting lower and lower. Breaking the convention and innovating to reduce costs are imperative, and improving production efficiency is also imminent.

[0003] In the existing technology, before LED chips are made into lamp beads, they need to go through a final sorting step, in which small particles with qualified yield are screened out and placed in a holding basket. The previous step of the sorting operation is to cut the entire LED chip into multiple small particles, and the small particles are placed on a blue film and placed on a machine for testing. The qualified chips are ejected from the blue film by a pin. When ejecting the chip on the blue film, the following problems arise: since the blue film is made of flexible material, if the middle of the particle is lifted by a pin, the edge of the particle can be easily separated from the blue film. However, lifting the particle by a single point of the pin will result in poor balance, and the suction nozzle may occasionally fail to fully fit with the plane of the particle, which may cause the particle to fall off during the transplanting process; if the particle is lifted by multiple pins, although the coverage area is larger, it is not easy to separate the edge of the particle from the blue film, resulting in the suction nozzle sucking up the blue film for a short distance when sucking up the particle, causing the particles around the particle to loosen. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an LED chip ejection device, aiming to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] An LED chip ejection device includes a carrying component, a driving component that drives the carrying component to move in the X and Y directions, and an ejection component located below the carrying component. The carrying component includes a blue film, on which LED particles are bonded. The ejection component includes a carrying platform, a main ejector vertically slidingly arranged on the carrying platform, a first nut threadedly connected to the main ejector, a second nut threadedly connected to the first nut, and a plurality of secondary ejectors fixedly connected to the second nut. The secondary ejectors are vertically slidably connected to the carrying platform. The main ejector extends to drive the first nut to rotate, and the rotation of the first nut drives the second nut to rise, so that the second nut drives the plurality of secondary ejectors to rise synchronously.

[0007] According to one aspect of the above technical solution, a lifting cylinder is provided inside the supporting platform, the lifting cylinder is connected to the main ejector, and a first accommodating hole for the main ejector to move is provided on the surface of the supporting platform.

[0008] According to one aspect of the above technical solution, the second nut is fixedly connected to the secondary ejector via a connecting ring, a second accommodating hole for movement of the secondary ejector is provided on the surface of the supporting platform, a slider is provided at the bottom of the secondary ejector, and a sliding groove matching the slider is provided in the second accommodating hole.

[0009] According to one aspect of the above technical solution, the main ejector pin surface is provided with a first external thread, the inner surface of the first nut is provided with a first internal thread, the outer surface of the first nut is provided with a second external thread, and the inner surface of the second nut is provided with a second internal thread.

[0010] According to one aspect of the above technical solution, a third accommodating hole is provided on the surface of the supporting platform, and the first nut is rotatably disposed in the third accommodating hole.

[0011] According to one aspect of the above technical solution, the bearing assembly further includes a fixing ring, and the blue film is arranged in the fixing ring.

[0012] According to one aspect of the above technical solution, the supporting assembly includes a supporting platform supporting the fixed ring, and a first sliding plate fixedly connected to the supporting platform, a second sliding plate is provided below the first sliding plate, and the first sliding plate is slidably arranged on the second sliding plate.

[0013] According to one aspect of the above technical solution, a fixed platform is provided below the second sliding plate, the second sliding plate is slidably arranged on the fixed platform, and the sliding direction of the second sliding plate is perpendicular to the sliding direction of the first sliding plate.

[0014] The utility model also provides a sorting machine, comprising the LED chip ejecting device as described above.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By arranging an ejection assembly under the carrying assembly and a driving assembly that drives the carrying assembly to move in two directions, when it is necessary to sort the LED particles, the driving assembly drives the LED particles on the blue film to move to the bottom of the detection mechanism respectively. If the LED particles meet the requirements, the ejection assembly is activated, firstly, the main ejector pin is extended to contact the blue film, causing the blue film to deform slightly and eject the LED particles. Since the main ejector pin acts on the middle part of the LED particle, the LED particle can be fully separated from the blue film. During the rising process of the main ejector pin, the first nut is rotated through the thread. The rotation of the first nut drives the second nut to rise through the thread, so that the second nut drives all the secondary ejectors to rise synchronously, which is used to lift the blue film around the LED particle, so that the edge of the LED particle is supported, the levelness of the LED particle is improved, and the suction nozzle can better suck up the LED particle.

[0017] The utility model makes the main ejector pin contact with the LED particles first to separate the LED particles from the blue film, and then uses the secondary ejector pin to lift the blue film to support the edge of the LED particles, so that the LED particles can better contact with the suction nozzle, thereby improving the efficiency of the transplanting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the LED chip ejection device in an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the ejector assembly;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure at the middle bearing platform;

[0021] Figure 4 for Figure 2 Exploded view of the structure at the main ejector pin and secondary ejector pin;

[0022] Description of main component symbols:

[0023] Supporting platform 21 First sliding plate 22 Second sliding plate 23 Fixed platform 24 retaining ring 11 Blue film 12 LED particles 13 Ejector assembly 30 Loading platform 31 Main ejector pin 32 Secondary ejector pin 33 Connecting ring 34 Second nut 35 First nut 36 First receiving hole 37 Second receiving hole 38 The third receiving hole 39 First external thread 321 First internal thread 361 Second external thread 362 Second internal thread 351

[0024] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See also Figures 1 to 4 , shown is an LED chip ejection device according to an embodiment of the present invention, comprising a carrier assembly, a driving assembly for driving the carrier assembly to move in the X and Y directions, and an ejection assembly 30 located below the carrier assembly. The carrier assembly includes a blue film 12 for bonding LED particles 13. The ejection assembly 30 includes a carrier platform 31, a main ejector pin 32 vertically slidingly disposed on the carrier platform 31, a first nut 36 threadedly connected to the main ejector pin 32, a second nut 35 threadedly connected to the first nut 36, and a plurality of secondary ejectors 33 fixedly connected to the second nut 35. The secondary ejectors 33 are vertically slidably connected to the carrier platform 31. The main ejector pin 32 extends to drive the first nut 36 to rotate, and the rotation of the first nut 36 drives the second nut 35 to rise, so that the second nut 35 drives the plurality of secondary ejectors 33 to rise synchronously.

[0029] As can be understood, the present invention provides an ejection assembly 30 below the carrying assembly and a driving assembly for driving the carrying assembly to move in two directions. When the LED particles 13 need to be sorted, the driving assembly drives the LED particles 13 on the blue film 12 to move to the bottom of the detection mechanism respectively. If the LED particles 13 meet the requirements, the ejection assembly 30 is activated, and the main ejector pins 32 are first extended to contact the blue film 12, so that the blue film 12 is slightly deformed to eject the LED particles 13. Since the main ejector pins 32 act on the middle part of the LED particles 13, the LED particles 13 can be fully separated from the blue film 12. During the rising process of the main ejector pins 32, the first nut 36 is rotated by the thread. The rotation of the first nut 36 drives the second nut 35 to rise by the thread, so that the second nut 35 drives all the secondary ejector pins 33 to rise synchronously, so as to lift the blue film 12 around the LED particles 13, so that the edges of the LED particles 13 are supported, the levelness of the LED particles 13 is improved, so that the suction nozzle can better suck up the LED particles 13.

[0030] The utility model makes the main ejector pin 32 contact the LED particle 13 first to separate the LED particle 13 from the blue film 12, and then uses the secondary ejector pin 33 to lift the blue film 12 to support the edge of the LED particle 13, so that the LED particle 13 can better contact with the suction nozzle, thereby improving the efficiency of the transplanting operation.

[0031] Specifically, a lifting cylinder is provided inside the carrying platform 31 , and the lifting cylinder is connected to the main ejector 32 . A first receiving hole 37 for the main ejector 32 to move is provided on the surface of the carrying platform 31 .

[0032] It can be understood that by connecting the lifting cylinder to the main ejector 32, the lifting cylinder can directly drive the main ejector 32 to lift up, and the structure is simpler. The main ejector 32 can move along the first accommodating hole 37. When not in use, the main ejector 32 can be stored in the first accommodating hole 37 to protect the ejector from damage by external forces.

[0033] Furthermore, the surface of the main ejector 32 is provided with a first external thread 321, the inner surface of the first nut 36 is provided with a first internal thread 361, the outer surface of the first nut 36 is provided with a second external thread 362, and the inner surface of the second nut 35 is provided with a second internal thread 351; the second nut 35 is fixedly connected to the secondary ejector 33 via a connecting ring 34, and the surface of the supporting platform 31 is provided with a second accommodating hole 38 for the movement of the secondary ejector 33, and the bottom of the secondary ejector 33 is provided with a slider, and the second accommodating hole 38 is provided with a slide groove matching the slider.

[0034] It can be understood that when the main ejector 32 pops out, the first nut 36 will rotate due to the interaction between the first external thread 321 and the first internal thread 361. The rotation of the first nut 36 will cause the second nut 35 to rise due to the interaction between the second external thread 362 and the second internal thread 351, thereby driving the secondary ejector 33 to rise. This design structure allows the main ejector 32 and the secondary ejector 33 to contact the blue film 12 in turn, thereby achieving the desired effect; similarly, when the main ejector 32 is retracted, the secondary ejector 33 will also be retracted.

[0035] Furthermore, a third receiving hole 39 is provided on the surface of the supporting platform 31 , and the first nut 36 is rotatably disposed in the third receiving hole 39 .

[0036] It is understandable that when the main ejector pin 32 extends out to drive the first nut 36 to rotate, the first nut 36 will rotate in the third receiving hole 39 because a bearing (not shown in the figure) is provided between the first nut 36 and the third receiving hole 39 .

[0037] Furthermore, the bearing assembly further includes a fixing ring 11 , and the blue film 12 is disposed in the fixing ring 11 .

[0038] Furthermore, the supporting assembly includes a supporting platform 21 that supports the fixed ring 11, and a first sliding plate 22 fixedly connected to the supporting platform 21, a second sliding plate is provided below the first sliding plate 22, and the first sliding plate 22 is slidably provided on the second sliding plate; a fixed platform 24 is provided below the second sliding plate, and the second sliding plate is slidably provided on the fixed platform 24, and the sliding direction of the second sliding plate and the sliding direction of the first sliding plate 22 are perpendicular to each other.

[0039] It can be understood that the sorting step is to place the LED particles 13 on the blue film 12 in sequence under the detection mechanism, specifically by moving the first sliding plate 22 along the second sliding plate in the X direction, and by moving the second sliding plate together with the first sliding plate 22 along the Y direction, specifically through the cylinders on the first sliding plate 22 and the second sliding plate (not shown in the figure) and PLC control.

[0040] In summary, the LED chip ejection device in the above embodiment of the present invention makes the main ejector pin contact with the LED particle first to separate the LED particle from the blue film, and then uses the secondary ejector pin to lift the blue film to support the edge of the LED particle, so that the LED particle can better contact with the suction nozzle, thereby improving the efficiency of the transplanting operation.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An LED chip ejection device, characterized in that: It includes a carrying component, a driving component that drives the carrying component to move along the X and Y directions, and an ejection component located below the carrying component. The carrying component includes a blue film, and the blue film is used to adhere LED particles. The ejection component includes a carrying platform, a main ejector vertically slidingly arranged on the carrying platform, a first nut threadedly connected to the main ejector, a second nut threadedly connected to the first nut, and a plurality of secondary ejectors fixedly connected to the second nut. The secondary ejectors are vertically slidably connected to the carrying platform. The main ejector extends to drive the first nut to rotate, and the rotation of the first nut drives the second nut to rise, so that the second nut drives the plurality of secondary ejectors to rise synchronously.

2. The LED chip ejection device according to claim 1, characterized in that: A lifting cylinder is provided inside the bearing platform, and the lifting cylinder is connected to the main ejector pin. A first accommodating hole for the main ejector pin to move is provided on the surface of the bearing platform.

3. The LED chip ejection device according to claim 1, characterized in that: The second nut is fixedly connected to the secondary ejector through a connecting ring. A second accommodating hole for the secondary ejector to move is provided on the surface of the supporting platform. A slider is provided at the bottom of the secondary ejector. A sliding groove matching the slider is provided in the second accommodating hole.

4. The LED chip ejection device according to claim 1, characterized in that: The surface of the main ejector pin is provided with a first external thread, the inner surface of the first nut is provided with a first internal thread, the outer surface of the first nut is provided with a second external thread, and the inner surface of the second nut is provided with a second internal thread.

5. The LED chip ejection device according to claim 1, characterized in that: A third accommodating hole is provided on the surface of the supporting platform, and the first nut is rotatably disposed in the third accommodating hole.

6. The LED chip ejection device according to claim 1, characterized in that: The bearing assembly further comprises a fixing ring, and the blue film is arranged in the fixing ring.

7. The LED chip ejection device according to claim 6, characterized in that: The bearing assembly includes a supporting platform for supporting the fixing ring, and a first sliding plate fixedly connected to the supporting platform. A second sliding plate is provided below the first sliding plate, and the first sliding plate is slidably arranged on the second sliding plate.

8. The LED chip ejection device according to claim 7, characterized in that: A fixed platform is provided below the second sliding plate, and the second sliding plate is slidably arranged on the fixed platform. The sliding direction of the second sliding plate is perpendicular to the sliding direction of the first sliding plate.

9. A sorting machine, characterized in that: The device comprises the LED chip ejection device according to any one of claims 1 to 8.

Images