The LED pick and place machine is a key device used in smt production, and can be used to mount various LED products, such as LED lamp beads. It does not require high precision on the equipment, but requires fast speed. LED enterprises not only reduce the cost of pick and place
equipment, but also improve production efficiency by using led placement machines. So how do led pick and place machines attach lamp beads? Let's share them.
The specific process of led placement machine:
1. Silk screen:
By using a screen printer, solder paste or patch glue is leaked onto the PCB's pads to prepare for component soldering.
2. Dispensing:
Need to use a dispenser, drip the glue onto the fixed position of the PCB board, and fix the components to the PCB board.
3. Mounting:
The surface mount components are accurately mounted on a fixed position of the PCB by applying an LED mounter. Note that LED pick and place machines are the main producers of smt production lines, and their performance is related to the production efficiency of the entire production line.
4, curing:
Use a curing oven to melt the surface mount adhesive so that the surface-mounted components and the PCB can be firmly bonded together.
5. Reflow soldering:
Use a reflow oven to melt the solder paste so that the surface-mounted components and the PCB board are firmly bonded together.
6. Cleaning:
The cleaning residues on the assembled PCB that are harmful to the human body, such as flux, are removed by a washing machine.
7. Detection:
Use a magnifying glass, microscope, in-circuit tester (ICT), flying probe tester, automatic optical inspection (AOI), X-RAY inspection system, function tester and other equipment to test the welding quality and assembly quality of the assembled PCB board . The location can be configured in the appropriate place of the production line according to the needs of inspection.
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