LED feeding device and system and control method thereof

Abstract

The LED feeding device comprises a feeding table, a feeding table and a driving mechanism used for driving the feeding table to move left and right in a reciprocating mode, the feeding table is provided with a plurality of feeding grooves used for containing LEDs, the rear ends of the feeding grooves are open, the front ends of the feeding grooves are provided with air blowing holes A used for blowing and conveying the LEDs, and the air blowing holes A are communicated with the feeding table. A plurality of feeding pipelines are arranged on the feeding table, and material taking grooves communicating with the feeding pipelines are correspondingly formed in the tail ends of the feeding pipelines; the feeding table is located at the front end of the feeding table, and the position of the feeding groove corresponds to the position of the front end of the feeding pipeline. Through the cooperation of the feeding table and the feeding table, a plurality of LEDs can be conveyed to the material taking groove of the feeding table at a time so as to be conveniently grabbed by a manipulator of SMT equipment, and the LED feeding mechanism is simple in structure, small in size, large in feeding number at a time and high in feeding speed, and the feeding efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of LED patch technology, and in particular to an LED feeding device, system and control method thereof. Background Art

[0002] There are more and more manipulators in the existing SMT patch equipment, and the current SMT patch equipment can complete the patching of multiple LED lamp beads at the same time. Therefore, the existing SMT patch equipment has higher and higher requirements for the feeding speed and feeding efficiency of LED lamp beads. The current feeding equipment has a relatively complex structure, large volume, small feeding quantity, slow feeding speed and low feeding efficiency. Summary of the invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide an LED feeding device, system and control method thereof to improve feeding efficiency.

[0004] In order to solve the above technical problems, an embodiment of the present invention proposes an LED feeding device, including a feeding table, a feeding table and a driving mechanism for driving the feeding table to move back and forth left and right, the feeding table is provided with a plurality of feeding troughs for placing LEDs, the rear end of the feeding troughs is open, and the front end of the feeding troughs is provided with a blowing hole A for blowing and conveying the LEDs, a plurality of feeding pipelines are provided on the feeding platform, and a material taking trough connected to the feeding pipeline is correspondingly provided at the end of the feeding pipeline; the feeding table is located at the front end of the feeding table, and the position of the feeding trough corresponds to the position of the front end of the feeding pipeline.

[0005] Furthermore, adsorption holes for adsorbing LEDs are provided at the bottom of the feed trough and the bottom of the take-out trough.

[0006] Furthermore, the side wall of the material taking trough is provided with a suction hole for air suction-assisted conveying of LEDs.

[0007] Furthermore, a cover plate for covering the feeding trough of the feeding table is provided at the front end of the feeding table.

[0008] Furthermore, a notch is provided in the middle of the cover plate for placing LEDs into the feeding slots of the feeding table, and the width of the notch corresponds to the width between one or more feeding slots on the feeding table.

[0009] Furthermore, an air blowing groove is provided at the top of the feeding pipeline, and a blowing block is correspondingly provided above the feeding pipeline, and the blowing block is provided with an air blowing hole B for blowing air toward the air blowing groove.

[0010] Furthermore, the front end edge of the feeding pipeline is a slope inclined toward the end.

[0011] Furthermore, it also includes a straight vibrator, and the feeding platform is installed on the straight vibrator.

[0012] Correspondingly, an embodiment of the present invention also provides an LED feeding system, including an air source and an LED discharge device, and also includes the above-mentioned LED feeding device, the air source supplies air and / or exhausts air to the LED feeding device through an air pipe, the LED discharge device includes a discharge robot, and the discharge robot corresponds to the upper front end of the feeding pipeline in the middle of the feeding table; the discharge robot moves up and down to load LEDs into the empty feeding trough below the discharge robot.

[0013] Accordingly, an embodiment of the present invention further provides a control method for an LED feeding system, wherein the number of feeding pipelines is twice the number of feeding slots on the feeding table, and the method comprises: When the feeding table is located on the left side of the feeding table, the unloading robot moves downward and starts to load LEDs from the feeding trough on the right side of the feeding table. The unloading robot moves upward and then drives the feeding table to move rightward, so that the next group of empty feeding troughs moves to the bottom of the unloading robot. The unloading robot moves downward again to load LEDs. This cycle repeats. When the feeding table moves to the right side of the feeding table, all the feeding troughs on the feeding table are loaded with LEDs. Air is blown through the blowing hole A to send the LEDs in the feeding troughs into the feeding pipeline, and then transported to the material taking trough through the feeding pipeline. The unloading robot moves downward and starts to load LEDs from the feeding trough on the left side of the feeding table. The unloading robot moves upward and then drives the feeding table to move to the left, so that the next group of empty feeding troughs move to the bottom of the unloading robot. The unloading robot moves downward again to load LEDs. This cycle continues. When the feeding table moves to the left side of the feeding table, all the feeding troughs on the feeding table are loaded with LEDs. Air is blown through the blowing hole A to send the LEDs in the feeding troughs into the feeding pipeline, and then transported to the picking trough through the feeding pipeline.

[0014] The beneficial effects of the present invention are as follows: through the cooperation between the feeding table and the feeding table, the present invention can convey multiple LEDs to the material trough of the feeding table at a time, so as to facilitate the robot arm of the SMT patch equipment to grab them. The present invention has a simple structure, a small size, a large single feeding quantity, a fast feeding speed, and greatly improves the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the LED feeding device according to an embodiment of the present invention from the first angle.

[0016] Figure 2 yes Figure 1 Enlarged view of point VI in the middle.

[0017] Figure 3 yes Figure 1 Enlarged view of point VII in the middle.

[0018] Figure 4 It is a three-dimensional structural diagram of the LED feeding device according to an embodiment of the present invention from a second angle.

[0019] Figure 5 yes Figure 4 Enlarged view of point VIII in the middle.

[0020] Figure 6 1 is a schematic top view of an LED feeding device according to an embodiment of the present invention.

[0021] Figure 7 yes Figure 6 Cross-sectional view at GG in the middle.

[0022] Figure 8 yes Figure 7 Enlarged view of point Ⅰ in the middle.

[0023] Fig. 9 yes Figure 7 Enlarged view of point II in the middle.

[0024] Fig.10 yes Figure 7 Enlarged view of point IV in the middle.

[0025] Fig.11 It is a three-dimensional structural diagram of the LED feeding device according to the embodiment of the present invention from the third angle.

[0026] Fig.12 It is a three-dimensional structural diagram of a feeding table according to an embodiment of the present invention.

[0027] Fig.13 It is a three-dimensional structural diagram of the feed trough of an embodiment of the present invention.

[0028] Fig.14 It is a three-dimensional structural diagram of the feeding pipeline inlet according to an embodiment of the present invention.

[0029] Fig.15 It is a partial enlarged view of the feeding table of an embodiment of the present invention.

[0030] Fig.16 It is a three-dimensional structural diagram of the material taking trough according to an embodiment of the present invention.

[0031] Description of Figure Numbers LED1, feeding table 10, feeding trough 11, blowing hole A12, adsorption hole 13, driving mechanism 14, feeding table 20, feeding pipeline 21, material taking trough 22, material absorption hole 23, cover plate 24, notch 25, blowing groove 26, blowing block 27, blowing hole B28, inclined surface 29, straight vibrator 30. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention is further described in detail below in conjunction with the drawings and specific embodiments.

[0033] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0035] Please refer to Figures 1 to 16 The LED feeding device of the embodiment of the present invention includes a feeding table, a feeding table and a driving mechanism.

[0036] The driving mechanism is used to drive the feeding table to move back and forth left and right. The driving mechanism can adopt a conveyor belt driving mechanism driven by a servo motor or a screw driving mechanism.

[0037] The feeding table is provided with a plurality of feeding troughs for placing LEDs (preferably SMD LEDs). The rear end of the feeding trough is open. The feeding troughs are arranged side by side at the rear end edge of the feeding table. The feeding table is provided with a plurality of feeding pipelines arranged side by side, and a feeding trough is correspondingly provided at the end of each feeding pipeline, and the end of the feeding pipeline is connected to the front end of the feeding trough. In specific implementation, a groove can be opened on the feeding table, and then an upper cover plate is arranged on the groove to form a feeding pipeline. The spacing between the feeding troughs is the same as the spacing between the feeding pipelines, and the bottom of the feeding trough is flush with the inner bottom of the feeding pipeline. When the feeding table is located on the left or right side of the feeding table, the feeding troughs on the feeding table are aligned one by one with the front end of the feeding pipeline, so as to facilitate the LEDs in the feeding troughs to enter the feeding pipeline.

[0038] The front end of the feed trough is provided with a blowing hole A for blowing and conveying the LED. The feed table is located at the front end of the feed table, and the position of the feed trough corresponds to the front end of the feed pipeline. The blowing hole A is used to blow air toward the LED in the feed trough, and the blowing direction is from front to back, so as to blow the LED in the feed trough into the feed pipeline.

[0039] As an implementation method, the bottom of the feed trough and the take-out trough are both provided with adsorption holes for adsorbing LEDs. The present invention uses the adsorption holes to perform vacuum adsorption to fix the LEDs in the feed trough and the take-out trough, preventing the LEDs from being blown over, so as to facilitate the LEDs in the feed trough to be blown into the feeding pipeline, and facilitate the robot arm of the SMT patch equipment to grab the LEDs in the take-out trough.

[0040] As an embodiment, the side wall (preferably the rear side wall) of the material taking trough is provided with a suction hole for suction-assisted conveying of LEDs. The present invention suctions air through the suction hole, thereby facilitating the LEDs in the feeding pipeline to quickly enter the material taking trough.

[0041] As an implementation method, a cover plate for covering the feeding trough of the feeding table is provided at the front end of the feeding table. A notch is provided in the middle of the cover plate to facilitate the placing robot to place the LED into the feeding trough of the feeding table, and the width of the notch corresponds to the width between one or more feeding troughs on the feeding table. In specific implementation, the cover plate is composed of a whole large cover plate, or it can be composed of multiple small cover plates.

[0042] The cover plate of the present invention covers the top of the feed trough of the feed table to prevent the LED in the feed trough from being blown over, and plays a role in limiting the position of the LED in the feed trough; at the same time, the top of the feed trough is sealed, so that the airflow blown out from the blowing hole A can better act on the LED, so that the LED enters the feeding pipeline more quickly and smoothly. Preferably, the notch area corresponds to two feed trough areas, which is convenient for placing two LEDs at a time to improve efficiency. The limit of the top of the trough is limited by the robot arm of the SMT patch equipment that grabs the LED.

[0043] As an implementation method, a blowing slot is provided on the top of the feeding pipeline, a blowing block is provided above the feeding pipeline, and a blowing hole B is provided on the blowing block for blowing air obliquely backward toward the blowing slot. The length direction of the blowing slot is the front-to-back direction. In specific implementation, several groups of blowing blocks and blowing slots can be provided correspondingly according to the length of the feeding pipeline. The present invention blows air obliquely backward toward the LED in the feeding pipeline through the blowing hole B, so that the LED in the feeding pipeline can enter the material taking slot more quickly and smoothly.

[0044] As an implementation mode, the front end edge of the feeding pipeline is a slope inclined backwards. The slope of the present invention is used for guiding, so as to facilitate the LEDs in the feeding trough to be blown into the feeding pipeline.

[0045] As an implementation method, the LED feeding device further includes a direct vibrator, and the feeding platform is mounted on the direct vibrator. The direct vibrator is used to assist in conveying the LEDs in the feeding pipeline, so that the LEDs in the feeding pipeline can enter the material trough.

[0046] The LED feeding system of the embodiment of the present invention includes an LED discharge device, an air source and an LED feeding device, and the air source supplies air and / or exhausts air to the LED feeding device through an air pipe. The air source is connected to the blowing hole A, the blowing hole B, the suction hole, and the adsorption hole through the air pipe, and a solenoid valve is arranged in the air pipe to facilitate independent control of the current air supply or exhaust of each hole. The LED discharge device includes a discharge manipulator, and the discharge manipulator corresponds to the upper front end of the feeding pipeline in the middle of the feeding table; the discharge manipulator moves up and down to load the LED into the empty feeding trough below the discharge manipulator. There are preferably two discharge manipulators.

[0047] The number of feeding pipelines in the embodiment of the present invention is twice the number of feeding slots on the feeding table. The control method of the LED feeding system in the embodiment of the present invention includes: When the feeding table is located on the left side of the feeding table, the unloading robot moves downward and starts to load LEDs from the feeding trough on the right side of the feeding table (the LEDs are loaded into the feeding trough by the unloading robot of the LED unloading device. Preferably, the LED unloading device has two unloading robots, and two feeding troughs are loaded with LEDs at a time to improve efficiency). The solenoid valve in the air pipe connected to the adsorption hole in the feeding trough generates a vacuum to absorb the placed LEDs. After the LEDs are placed; the unloading robot moves upward to reset, and at the same time drives the feeding table to move to the right, so that the next The empty feed troughs (if two feed troughs are loaded with LEDs at a time, the next pair of empty feed troughs will move to the bottom of the two discharge manipulators accordingly) move to the bottom of the discharge manipulator, and the discharge manipulator moves downward again to load LEDs, and this cycle continues. When the feed table moves to the right side of the feeding table, all the feed troughs on the feeding table are loaded with LEDs, and air is blown through the blowing hole A to send the LEDs in the feed troughs into the feeding pipeline, and then air is blown through the blowing hole B, air is sucked through the suction hole, and the direct vibrator vibrates to transport the LEDs in the feeding pipeline to the material trough.

[0048] When the feeding table is on the right side of the feeding table, the unloading robot moves downward and starts to load LEDs from the feeding trough on the left side of the feeding table. The solenoid valve in the air pipe connected to the adsorption hole in the feeding trough generates a vacuum to suck the placed LEDs. After the LEDs are placed, the unloading robot moves upward to reset, and at the same time drives the feeding table to move to the left, so that the next group of empty feeding troughs moves to the bottom of the unloading robot (if two feeding troughs are loaded with LEDs at a time, the next pair of empty feeding troughs moves to the bottom of the two unloading robots accordingly), and the unloading robot moves downward again to load LEDs. D. In this way, when the feeding table moves to the left side of the feeding table, all the feeding slots on the feeding table are loaded with LEDs. The LEDs in the feeding slots are sent into the feeding pipelines through air supply and / or air extraction from the air source. The feeding table moves from the left side to the right side once, and it can just deliver one LED to each feeding pipeline of the feeding table. Similarly, the feeding table moves from the right side back to the left side once, and it can deliver another LED to each feeding pipeline of the feeding table. The feeding table reciprocates left and right, and can continuously deliver LEDs to each feeding pipeline of the feeding table. Then, through the blowing hole B, the suction hole, and the vibration of the direct vibrator, the LEDs in the feeding pipeline are delivered to the material trough. In this way, LEDs can be continuously delivered to the feeding pipeline and then to the material trough, so as to facilitate the robot of the SMT patch equipment to take materials.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED feeding device, characterized in that: It includes a feeding table, a delivery table and a driving mechanism for driving the feeding table to move back and forth left and right. The feeding table is provided with a plurality of feeding troughs for placing LEDs. The rear end of the feeding troughs is open, and the front end of the feeding troughs is provided with a blowing hole A for blowing and conveying LEDs. The delivery table is provided with a plurality of feeding pipelines, and the ends of the feeding pipelines are correspondingly provided with material taking troughs connected to the feeding pipelines; the feeding table is located at the front end of the feeding table, and the position of the feeding trough corresponds to the position of the front end of the feeding pipeline.

2. The LED feeding device according to claim 1, characterized in that: The bottom of the feeding trough and the taking trough are both provided with adsorption holes for adsorbing LEDs.

3. The LED feeding device according to claim 1, characterized in that: The side wall of the material taking trough is provided with a suction hole for air suction-assisted conveying of LEDs.

4. The LED feeding device according to claim 1, characterized in that: A cover plate for covering the feeding trough of the feeding table is arranged at the front end of the feeding table.

5. The LED feeding device according to claim 4, characterized in that: A notch is provided in the middle of the cover plate for placing LEDs into the feeding slot of the feeding table, and the width of the notch corresponds to the width between one or more feeding slots on the feeding table.

6. The LED feeding device according to claim 1, characterized in that: An air blowing groove is provided on the top of the feeding pipeline, and a blowing block is correspondingly provided above the feeding pipeline. The blowing block is provided with an air blowing hole B for blowing air toward the air blowing groove.

7. The LED feeding device according to claim 1, characterized in that: The front end edge of the feeding pipeline is a slope inclined toward the end.

8. The LED feeding device according to claim 1, characterized in that: It also includes a straight vibrator, and the feeding platform is installed on the straight vibrator.

9. An LED feeding system, comprising an air source and an LED discharge device, characterized in that: It also includes an LED feeding device as described in any one of claims 1 to 8, the air source supplies air and / or exhausts air to the LED feeding device through an air pipe, and the LED unloading device includes a unloading robot, and the unloading robot corresponds to the upper front end of the feeding pipeline in the middle of the feeding table; the unloading robot moves up and down to load LEDs into the empty feeding trough below the unloading robot.

10. A control method for an LED feeding system as claimed in claim 9, characterized in that: The number of feeding pipelines is twice the number of feeding slots on the feeding table. The method includes: When the feeding table is located on the left side of the feeding table, the unloading robot moves downward and starts to load LEDs from the feeding trough on the right side of the feeding table. The unloading robot moves upward and then drives the feeding table to move rightward, so that the next group of empty feeding troughs moves to the bottom of the unloading robot. The unloading robot moves downward again to load LEDs. This cycle repeats. When the feeding table moves to the right side of the feeding table, all the feeding troughs on the feeding table are loaded with LEDs. Air is blown through the blowing hole A to send the LEDs in the feeding troughs into the feeding pipeline, and then transported to the material taking trough through the feeding pipeline. The unloading robot moves downward and starts to load LEDs from the feeding trough on the left side of the feeding table. The unloading robot moves upward and then drives the feeding table to move to the left, so that the next group of empty feeding troughs move to the bottom of the unloading robot. The unloading robot moves downward again to load LEDs. This cycle continues. When the feeding table moves to the left side of the feeding table, all the feeding troughs on the feeding table are loaded with LEDs. Air is blown through the blowing hole A to send the LEDs in the feeding troughs into the feeding pipeline, and then transported to the picking trough through the feeding pipeline.

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