LED substrate detection equipment

Abstract

The utility model discloses LED substrate detection equipment which comprises a first conveying device and a second conveying device, a first bearing device is arranged between the first conveying device and the second conveying device, and a visual detection device is arranged at the position corresponding to the first conveying device. A second bearing device and a paper feeding device are sequentially arranged at the end, away from the second conveying device, of the second conveying device, and a cutting device is arranged between the paper feeding device and the second bearing device. The speed of the first conveying device can be dynamically adjusted so that the substrate can cross the first bearing device to enter the conveying device, and the first bearing device and the second bearing device can be opened and closed so that the substrate can fall down. In addition, the good products and the defective products are distinguished in a dynamic speed regulation mode, a transfer device needs to be arranged between the good products and the defective products, the overall structure of the equipment is greatly simplified, and the manufacturing cost of the equipment is reduced.

Description

An LED substrate testing device Technical Field

[0001] This utility model belongs to the field of testing equipment technology, specifically an LED substrate testing device. Background Technology

[0002] LED substrates are mainly used as intermediate carriers to support LED brackets. They contain structures such as pins. After stamping, several cups are formed on the substrate by injection molding. In order to meet the usage requirements, visual inspection is also required to check for defects, etc.

[0003] During the testing process, good and defective products will be identified. In existing technologies, multiple boards are usually tested together. After the testing process is completed, good and defective products are sorted out. This sorting method can lead to defective products being mixed with good products.

[0004] In addition, the substrates are all injection molded into cups before being inspected. However, the placement position after injection molding is different from the inspection position. Therefore, the substrates need to be flipped before loading. The existing flipping mechanism is slow and has a complex structure. Summary of the Invention

[0005] The purpose of this invention is to provide an LED substrate testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An LED substrate inspection device includes a first conveying device and a second conveying device, a first supporting device is provided between the two, and a visual inspection device is provided at the position corresponding to the first conveying device.

[0008] A support device 2 and a paper feeding device are sequentially provided at the end of the conveying device 2 that is away from the conveying device 2, and a cutting device is provided between the paper feeding device and the support device 2.

[0009] The first conveying device can be dynamically speed-adjusted, allowing the substrate to cross the first supporting device and enter the conveying device. Both the first and second supporting devices can be opened and closed to allow the substrate to fall.

[0010] A further technical solution involves providing a blocking component on the side of the supporting device one that is close to the conveying device two.

[0011] A further technical solution includes a flipping device located before the visual inspection device. The flipping device includes a rotating shaft rotatably connected to the conveying device, with movable plates fixed near both ends of the rotating shaft. The movable plates have reversing grooves. A motor is installed on one side of the conveying device, and the output end of the motor is connected to the rotating shaft.

[0012] In a further technical solution, both movable plates are circular plates, the rotating shaft is located at the center of the two circular plates, and the reversing groove has two grooves, which are symmetrically arranged at the diameter of the circular plates.

[0013] In a further technical solution, the second supporting device includes two symmetrically arranged upright plates, with a drop position formed between the two upright plates, and a sensor is provided above the drop position.

[0014] Both upright plates are equipped with cylinder one, cylinder two and cylinder three, and the output ends of the three cylinders are respectively connected to baffle one, baffle two and baffle three, which are inserted into the upright plates.

[0015] In a further technical solution, the paper feeding device includes a support frame, on which a storage tray, a paper feeding channel, and a power component are correspondingly provided;

[0016] The power assembly includes a fixed base, on which a pressure roller 1 and a pressure roller 2 are rotatably connected. The end of the pressure roller 2 is connected to a motor 2. A pressure block is provided in front of the pressure roller 2. A guide channel is provided between the pressure block and the fixed base. A cutting device is provided at the outer end of the guide channel. The cutting device has an outlet corresponding to the guide channel.

[0017] In a further technical solution, a transfer conveyor belt is provided below the first supporting device, the transfer conveyor belt has an opening corresponding to the position of the supporting device, a pallet is provided at the opening, and the pallet is connected to the lifting assembly.

[0018] A further technical solution is to provide a support frame below the second support device. The support frame is used to support the material tray, which has several placement positions. A toggle device is installed on one side of the support frame to push the material tray to move gradually.

[0019] A further technical solution involves providing a material tray loading device and a material tray unloading device on both sides of the support frame.

[0020] The beneficial effects of this utility model are:

[0021] This invention performs single-wafer testing, accurately determining the quality of the current substrate and taking subsequent actions accordingly, preventing the mixing of good and defective products. Furthermore, it employs dynamic speed control to separate good and defective products, eliminating the need for a transfer device between them. This greatly simplifies the overall structure of the equipment and reduces its cost.

[0022] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] Figure 1: Three-dimensional structural diagram of this utility model.

[0024] Figure 2: Three-dimensional structural diagram of this utility model.

[0025] Figure 3: Structural diagram of the flipping device of this utility model.

[0026] Figure 4: Structural diagram of the second supporting device of this utility model.

[0027] Figure 5: Structural diagram of the transfer conveyor belt, pallet and lifting assembly of this utility model.

[0028] Figure 6: Structural diagram of the actuating device, the tray feeding device, and the tray unloading device of this utility model.

[0029] Figure 7: Structural diagram of the paper feeding device of this utility model.

[0030] Reference numerals: 11-Conveying device one, 12-Conveying device two, 2-Supporting device one, 3-Supporting device two, 31-Upright plate, 32-Sensor, 331-Cylinder one, 332-Baffle one, 341-Cylinder two, 342-Baffle two, 351-Cylinder three, 352-Baffle three, 4-Vision inspection device, 5-Paper feeding device, 51-Support frame, 52-Storage tray, 53-Paper feeding channel, 54-Power unit, 541 Fixed base, 542-Pressure roller one, 543-Motor two, 544-Pressure block, 61-Cutting device, 611-Outlet, 62-Blocking assembly, 63-Tilting device, 631-Rotating shaft, 632-Moving plate, 633-Reversing chute, 634-Motor one, 71-Transfer conveyor belt, 72-Plate, 73-Lifting assembly, 81-Support frame, 82-Actuating device, 83-Plate loading device, 84-Plate unloading device. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0032] Please refer to Figure 1-7;

[0033] The testing equipment described in this utility model aims to more accurately and quickly test LED substrates, avoiding confusion between good and defective products. Specifically, it includes a first conveyor device 11 and a second conveyor device 12, which are arranged in a straight line with their ends facing each other. A first support device 2 is provided between the two. A visual inspection device 4 is provided at the position corresponding to the first conveyor device 11. A second support device 3 and a paper feeding device 5 are arranged sequentially at the end of the second conveyor device 12 away from the second conveyor device 12. A cutting device 61 is provided between the paper feeding device 5 and the second support device 3. In this embodiment, the visual inspection device 4 has two sets for detecting different basic positions, such as whether there is dirt, excess glue, solder burrs, warping, or unevenness at the bottom of the cup in the functional area. In addition, to avoid scratches, a piece of paper is placed between the two good substrates as a barrier.

[0034] Existing unloading methods typically employ suction cups and various moving devices, resulting in complex structures, numerous movements, and high costs. In contrast, this invention utilizes a drop-type unloading method, which greatly simplifies the equipment structure and increases efficiency.

[0035] In this embodiment, the conveying device can be directly connected to the injection molding device. After each injection molding is completed, the substrate will be sent to this equipment for inspection. During operation, the substrate is placed on the conveying device 11 and moves forward. First, it will pass through the vision inspection device 4 to check whether each position of the substrate is qualified, and then continue to move forward.

[0036] The visual inspection device 4 detects the current substrate and feeds the detection result back to the system. The substrate will then first reach the support device 2. In the initial state, the support device 2 and the support device 3 are normally closed. If the substrate is found to be defective, it will stay on the support device 2. Then the support device 2 will open to allow the current substrate to fall down and complete the unloading. If the substrate is found to be good, the conveyor device 11 will accelerate and push the substrate forward, and with the help of the support device 2, it will be fed into the conveyor device 12. Then the current substrate will be fed into the support device 3 through the conveyor device 12. After that, the paper feeding device 5 will extend the pad paper and cover the surface of the substrate. The paper will be cut by the cutting device 61. Finally, the support device 2 will open to allow the substrate and the paper to fall down together. A conveyor belt or tray can be provided below the support device 2 and the support device 3 to support the substrate.

[0037] It should be noted that the conveying device 11 in this embodiment has a speed adjustment function. In one embodiment, the conveying device 1 consists of two independent conveying parts. The front conveying part is at a constant speed, so that the substrate can pass through the visual inspection device 4 smoothly. The rear conveying part is a speed-adjustable part, which makes dynamic adjustments according to the inspection results.

[0038] This invention performs single-wafer testing, accurately determining the quality of the current substrate and taking subsequent actions accordingly, preventing the mixing of good and defective products. Furthermore, it employs dynamic speed control to separate good and defective products, eliminating the need for a transfer device between them. This greatly simplifies the overall structure of the equipment and reduces its cost.

[0039] Preferably, a blocking component 62 is provided on the side of the support device 12 near the conveying device 2. If the current substrate is defective, the blocking component 62 will descend in advance to prevent the substrate from being moved out of the support device 12. The blocking component 62 may consist of a cylinder and a baffle.

[0040] This invention also includes a flipping device 63 located before the visual inspection device 4, used to adjust the position of the substrate. Normally, the substrate enters the conveying device 11 with its front side facing up. However, the area to be inspected is the back side of the substrate, so the flipping device 63 is required. Specifically, it includes a rotating shaft 631 rotatably connected inside the conveying device 11, with movable plates 632 fixed at both ends near the rotating shaft 631. The movable plates 632 have reversing grooves 633. A motor 634 is installed on the side of the conveying device 11, and the output end of the motor 634 is connected to the rotating shaft 631. It should be noted that the width of the conveying device 11 and the conveying device 2 12 is only slightly larger than the width of the substrate, which can reduce the swaying of the substrate.

[0041] In the initial state, the reversing grooves 633 of the two movable plates 632 are flush with the transmission belt in the conveyor device 11. As the substrate is pushed forward, it will enter the reversing grooves 633. The two reversing grooves 633 correspond to the two sides of the substrate. Then, the motor 634 rotates on the rotating shaft 631, and the movable plates 632 rotate 180° to complete the flipping of the substrate. After flipping, the substrate will contact the conveyor belt again and continue to move forward under the drive of the conveyor belt.

[0042] Preferably, both movable plates 632 are circular plates, and the rotating shaft 631 is located at the center of the two circular plates. There are two reversing grooves 633, which are symmetrically arranged at the diameter of the circular plates. When one reversing groove 633 rotates 180°, the other reversing groove 633 will also rotate 180°. With this arrangement, the two movable plates 632 do not need to be reset and can achieve cyclic operation.

[0043] In this embodiment of the utility model, the supporting device 2 3 includes two symmetrically arranged upright plates 31, forming a downward position between the two upright plates 31, and a sensor 32 is provided above the corresponding downward position; each of the two upright plates 31 is equipped with a cylinder 1 331, a cylinder 2 341 and a cylinder 351, and the output ends of the three cylinders are respectively connected to a baffle 1 332, a baffle 2 342 and a baffle 352, which are inserted into the upright plates 31;

[0044] In the initial state, the baffles 332, 342 and 352 on both sides extend out of the upright plate 31 and into the falling position, thereby preventing the substrate support column from falling. The presence of the substrate is detected by the sensor 32 placed on the top, and then the paper is waited to extend and cover the surface of the substrate.

[0045] Then, two cylinders 331 drive two baffles 332 away from each other, two cylinders 341 drive two baffles 342 away from each other, and two cylinders 351 drive two baffles 352 away from each other. The above process is carried out in sequence, so that the substrate and paper fall together step by step to reduce the falling distance and avoid separation of the substrate and paper.

[0046] It should be noted that the support device 12 can refer to the specific structure of the support device 23, and can make detailed changes, such as increasing or decreasing the number of cylinders and baffles, and the final result is the same.

[0047] In this embodiment of the utility model, the paper feeding device 5 includes a support frame 51, on which a storage tray 52, a paper feeding channel 53 and a power component 54 are provided. The paper roll is placed in the storage tray 52, and the paper passes through the paper feeding channel 53 into the power component 54. The power component 54 rotates and then pulls the paper out.

[0048] The power assembly 54 includes a fixed base 541, on which a pressure roller 1 542 and a pressure roller 2 (not shown) are rotatably connected. The pressure roller 1 542 and the pressure roller 2 are arranged to press each other down. The end of the pressure roller 2 is connected to the motor 2 543. A pressure block 544 is provided in front of the pressure roller 2. A guide channel is provided between the pressure block 544 and the fixed base 541. A cutting device 61 is provided at the outer end of the guide channel. The cutting device 61 has an outlet 611 corresponding to the guide channel.

[0049] In the initial state, the opening of the cutting device 61 is open, and the paper is placed between the pressure roller 1 542 and the pressure roller 2. The motor 2 543 drives the pressure roller to rotate, and the paper is pushed forward by friction. It passes through the guide channel and extends from the outlet 611 to the support device 2 3. Finally, the paper is cut by the cutting device 61.

[0050] In this embodiment of the present invention, a transfer conveyor belt 71 is provided below the support device 2. The transfer conveyor belt 71 has an opening corresponding to the position of the support device. A tray 72 is provided at the opening position. The tray 72 is connected to the lifting component 73. In the initial state, the tray 72 is as close as possible to the bottom of the support device 2 to reduce the falling distance of the substrate. Then, the lifting component 73 drives the tray 72 to descend and retract into the conveyor belt, so that it is basically placed on the conveyor belt and moved to other positions. Alternatively, the height gradually decreases under the action of the lifting component 73, so that the defective substrates are stacked together.

[0051] In this embodiment of the present invention, a support frame 81 is provided below the second support device 3. The support frame 81 is used to support the material tray (not shown). The material tray has several placement positions. A toggle device 82 is installed on one side of the support frame 81 to push the material tray to move gradually.

[0052] Furthermore, a material tray feeding device 83 and a material tray unloading device 84 are respectively provided on both sides of the support frame 81.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An LED substrate testing device, characterized in that: It includes a first conveying device (11) and a second conveying device (12), with a first supporting device (2) located between them, and a visual inspection device (4) located at the position corresponding to the first conveying device (11); a second supporting device (3) and a paper feeding device (5) are arranged in sequence at the end of the second conveying device (12) away from the second conveying device (12), and a cutting device (61) is located between the paper feeding device (5) and the second supporting device (3); the first conveying device (11) can be dynamically speed-adjusted so that the substrate crosses the first supporting device (2) and enters the conveying device; both the first supporting device (2) and the second supporting device (3) can be opened and closed to make the substrate fall.

2. The LED substrate testing equipment according to claim 1, characterized in that: A blocking assembly (62) is provided on the side of the supporting device (2) near the conveying device (12).

3. The LED substrate testing equipment according to claim 1, characterized in that: A flipping device (63) is provided before the visual inspection device (4). The flipping device (63) includes a rotating shaft (631) rotatably connected to the conveying device (11). Movable plates (632) are fixed at both ends near the rotating shaft (631). A reversing groove (633) is provided in the movable plate (632). A motor (634) is installed on the side of the conveying device (11). The output end of the motor (634) is connected to the rotating shaft (631).

4. The LED substrate testing equipment according to claim 3, characterized in that: Both movable plates (632) are circular plates, the rotating shaft (631) is located at the center of the two circular plates, and the reversing groove (633) has two grooves, which are symmetrically arranged at the diameter of the circular plates.

5. The LED substrate testing equipment according to claim 1, characterized in that: The second supporting device (3) includes two symmetrically arranged upright plates (31), forming a drop position between the two upright plates (31), and a sensor (32) is provided above the drop position; each of the two upright plates (31) is equipped with a cylinder one (331), a cylinder two (341) and a cylinder three (351) mounted on its upper and lower sides, and the output ends of the three cylinders are respectively connected to a baffle one (332), a baffle two (342) and a baffle three (352), which are inserted into the upright plates (31).

6. The LED substrate testing equipment according to claim 1, characterized in that: The paper feeding device (5) includes a support frame (51), on which a storage tray (52), a paper feeding channel (53), and a power assembly (54) are provided. The power assembly (54) includes a fixed base (541), on which a pressure roller 1 (542) and a pressure roller 2 are rotatably connected. The end of the pressure roller 2 is connected to a motor 2 (543). A pressure block (544) is provided in front of the pressure roller 2. A guide channel is provided between the pressure block (544) and the fixed base (541). A cutting device (61) is provided at the outer end of the guide channel. An outlet (611) corresponding to the guide channel is provided in the cutting device (61).

7. The LED substrate testing equipment according to claim 1, characterized in that: The support device (2) is provided with a transfer conveyor belt (71) below it. The transfer conveyor belt (71) has an opening corresponding to the position of the support device. A pallet (72) is provided at the opening position. The pallet (72) is connected to the lifting assembly (73).

8. The LED substrate testing equipment according to claim 1, characterized in that: A support frame (81) is provided below the support device 2 (3). The support frame (81) is used to support the material tray. The material tray has several placement positions. A toggle device (82) is installed on one side of the support frame (81) to push the material tray to move gradually.

9. The LED substrate testing equipment according to claim 1, characterized in that: The support frame (81) is provided with a tray loading device (83) and a tray unloading device (84) on both sides respectively.

Images