LED lamp bead surface mounting transfer feeder device and surface mounting machine
By introducing an LED chip placement feeder device that creates optical contrast between a colored background and a black edge into the pick-and-place machine, the problem of the pick-and-place machine's difficulty in recognizing black LED chips is solved, achieving high-precision placement results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-13
AI Technical Summary
Existing pick-and-place machines have difficulty identifying and measuring the characteristics of black LED beads, making placement difficult.
Design an LED chip mounting feeder device that uses a colored background with black edges to create optical contrast, and combines a vision mechanism and a controller to achieve precise mounting.
By using strong optical contrast to identify the characteristics of the LED beads, high-precision mounting is achieved, reducing the difficulty of mounting.
Smart Images
Figure CN223993832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chip mounter technology, and in particular to a chip mounter transfer feeder device for LED beads, and a chip mounter. Background Technology
[0002] A pick-and-place machine, also known as a surface mount system, is a device installed after a dispensing machine or screen printer in a production line. It accurately places surface mount components onto PCB pads by moving the placement head. A feeder, also called a material feeder or feeder, is a transfer device primarily responsible for supplying SMD components to the placement head; it's an automatic device that supplies components to the placement head.
[0003] LEDs, as a highly effective new light source, are widely used in various applications such as LED displays, LCD backlights, lighting fixtures, indoor lighting, and streetlights. A pick-and-place machine is a device that uses a moving placement head to accurately place surface-mount components onto PCB pads awaiting mounting. With the widespread application of surface-mount LEDs, a large number of LED pick-and-place machines for mounting LED chips have emerged.
[0004] In existing technologies, LED chip packaging tape is generally black, and the edges of most LED chips are also black. The camera head of the placement machine has difficulty identifying the characteristics of the LED chip body and measuring its size, which makes LED chip placement more difficult. Utility Model Content
[0005] The technical problem this invention aims to solve is that during the LED bead mounting process, the head camera of the pick-and-place machine has difficulty identifying the LED bead itself, making LED bead mounting difficult.
[0006] Therefore, this utility model provides a surface mount feeder device for LED lamp beads and a surface mount machine.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] A surface mount feeder device for LED chips includes,
[0009] A material storage device for holding LED beads;
[0010] The background plate is set on the material storage device, and the LED beads are placed on the background plate. Under the illumination of the camera light source at the head of the pick and place machine, the background plate can form an optical contrast with the black edge of the LED beads.
[0011] Furthermore, the background panel is set to color.
[0012] Furthermore, the material storage device is equipped with a storage plate, and the background plate is disposed on the storage plate.
[0013] Furthermore, the background plate is fixed to the storage plate, and the background plate is made of plastic.
[0014] Furthermore, the storage plate is made of metal.
[0015] Furthermore, the material storage device is equipped with a feeder grounding device.
[0016] Furthermore, the background plate is provided with a limiting groove for placing LED beads.
[0017] Furthermore, the edge of the limiting groove transitions into an arc shape with the top surface of the background plate.
[0018] A pick and place machine, comprising,
[0019] Frame, and
[0020] A placement head, which is movably mounted on the frame for picking up LED beads;
[0021] A vision mechanism, wherein a head camera and a light source are provided;
[0022] A controller, connected to a vision mechanism, is used to control the movement of the placement head;
[0023] It also includes the LED chip transfer feeder device as described above, which is connected to the frame via a mounting base.
[0024] The beneficial effect of this utility model is that it picks up the LED beads onto the transfer feeder, achieving a strong optical contrast between the LED beads and the bottom background plate, which satisfies the requirements of the pick-and-place machine's head camera to photograph and identify the characteristics of the LED beads and measure their dimensions, thereby achieving high-precision LED bead placement by the pick-and-place machine. Attached Figure Description
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] Figure 1 This is a schematic diagram of the surface mount feeder device for LED beads in this utility model.
[0027] Figure 2 This is a schematic diagram of the limiting groove in Embodiment 2 of this utility model.
[0028] In the diagram: 1. Material storage device; 2. Mounting base; 3. Background plate; 4. Storage plate; 5. Feeder grounding device; 6. Limiting groove. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example 1
[0033] Reference Figure 1 A pick-and-place machine includes a frame, a placement head, a vision mechanism, a controller, and a feeder device for placing LED beads. The feeder device is connected to the frame via a mounting base 2. The placement head, which is a suction nozzle, is mounted on the frame via a drive mechanism and can pick up LED beads. The placement head can move relative to the frame along the X, Y, and Z axes. The vision mechanism, which includes a head camera and a light source, is mounted on the frame and is used to identify LED beads. The controller is connected to both the vision mechanism and the drive mechanism.
[0034] The controller can be programmed in advance and the position of the transfer feeder can be configured. The transfer feeder and the ordinary feeder of the assigned LED bead position must be in the same placement module. The position is locked in advance when the placement machine is programmed and the position of the transfer feeder cannot be adjusted on the placement machine.
[0035] Preferably, the controller's source code supports picking up an LED on a regular feeder and then precisely moving it to the transfer feeder position, so that the LED bead is precisely placed in the middle area of the background plate 3 surface on the transfer feeder.
[0036] A feeder device for LED chip placement includes a material storage device 1, a mounting base 2, a background plate 3, and a feeder grounding device 5. The material storage device 1 is fixedly mounted on the chip placement machine via the mounting base 2. The feeder grounding device 5 is installed on the material storage device 1 to safely ground the feeder and prevent the LED from being electrostatically damaged.
[0037] The material storage device 1 is equipped with a storage plate 4, and a background plate 3 is installed on the upper surface of the storage plate 4. The background plate 3 and the storage plate 4 are closely attached. It should be noted that when the LED beads are placed on the background plate 3, the background plate 3 can form an optical contrast with the black edge of the LED beads under the illumination of the camera light source at the head of the pick and place machine.
[0038] Specifically, the material storage plate 4 is made of metal, and the background plate 3 is made of colored plastic. Under the illumination of the pick-and-place machine's head camera, the camera recognizes the colored background plate, creating a strong contrast with the black edges of the LED beads.
[0039] Example 2
[0040] In this embodiment, a limiting groove 6 can be further provided on the background plate 3 for placing LED beads. To prevent shadow areas between the limiting groove 6 and the LED beads during image acquisition, the limiting groove 6 and the top surface of the background plate 3 have a smooth transition. The limiting groove 6 and the top surface of the background plate 3 can have an arc-shaped transition or a sloped transition. (Refer to...) Figure 2 Specifically, the sidewall of the limiting groove 6 can be set as an arc surface or an inclined surface that is inclined away from the center of the limiting groove 6.
[0041] The implementation principle of this utility model is as follows:
[0042] After the placement head picks up the LED beads from the ordinary feeder, it moves to the material storage device 1. The placement head of the pick-and-place machine presses down to place the LED beads on the surface of the background plate 3. The bottom of the LED beads is the identification background plate 3. Under the illumination of the light source, the LED beads and the background plate 3 form a strong optical contrast, which serves the purpose of the head camera to identify the black edge LED beads.
[0043] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.
Claims
1. A patch transfer flyover device for LED lamp beads, characterized in that, The LED lamp bead transfer device comprises a material temporary storage device (1) for placing the LED lamp bead, a background plate (3) arranged on the material temporary storage device (1), and the LED lamp bead is placed on the background plate (3), and the background plate (3) can form optical contrast with the black edge of the LED lamp bead under the irradiation of the camera head camera light source. The background plate (3) is colored. The material temporary storage device (1) is provided with a storage plate (4), and the background plate (3) is arranged on the storage plate (4).
2. The LED lamp bead patching middle transfer flying device according to claim 1, characterized in that, The background plate (3) is fixed on the storage plate (4), and the background plate (3) is made of plastic.
3. The LED lamp bead patching middle transfer flying device according to claim 1, characterized in that, The storage plate (4) is made of metal.
4. The patch transfer device for LED lamp beads in claim 2, wherein, The material temporary storage device (1) is provided with a flying head grounding device (5).
5. The patch transfer device for LED lamp beads in claim 4, wherein, The background plate (3) is provided with a limiting groove (6) for placing the LED lamp bead.
6. The patch transfer device for LED lamp beads in claim 1, wherein, The edge of the limiting groove (6) is arc-shapedly transitioned with the top surface of the background plate (3).
7. The patch transfer device for LED lamp beads in claim 1, wherein, 9. A patching machine, comprising, 8. The patch transfer device for LED lamp beads in claim 7, wherein, a frame body, and a patching head movably arranged on the frame body for sucking the LED lamp bead; a visual mechanism, wherein a head camera and a light source are arranged in the visual mechanism; a controller connected with the visual mechanism for controlling the movement of the patching head; characterized in that the LED lamp bead transfer device for patching and transferring is arranged on the frame body through the mounting seat (2).