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What is the manufacturing principle of the arch SMT Mounter?

2020-03-12

The element feeder PCB are fixed. The chip head (with multiple vacuum suction nozzles installed) moves back forth between the feeder the substrate, takes the element out of the feeder, adjusts the position direction of the element, then pastes it on the substrate. As the tip is installed on the X / Y coordinate moving beam of arch type, it is named.


The adjustment method for the position direction of the components of the arch Mounter:


1) the alignment position of the machine the adjusting direction of the nozzle rotation are limited, the later models are no longer used.


2) Laser identification, X / Y coordinate system to adjust the position, suction nozzle rotation to adjust the direction. This method can realize the identification in the flight process, but it can be used for BGA.


3) , camera recognition, X / Y coordinate system adjustment position, suction nozzle rotation adjustment direction. Generally, the camera is fixed, the tip flies over the camera for image recognition. It takes a little longer than laser recognition, but it can identify any component, there is also a camera recognition system to realize recognition in flight. There are other sacrifices in mechanical structure.



What is the manufacturing principle of the arch SMT Mounter?


In this form, the speed is limited due to the long back forth moving distance of the tip. Generally, multiple vacuum suction nozzles (up to ten) double beam system are used to improve the speed. That is to say, when one beam is used for picking, the other beam is used for sticking components, which is almost twice as fast as the single beam system. But in practical application, it is difficult to obtain the conditions of taking materials at the same time, different types of components need to be replaced with different vacuum suction nozzles, which has time delay.


The advantages of this type of machine are: simple system structure, high precision, suitable for various sizes shapes of components, even special-shaped components, feeder has the form of belt, tube tray. It is suitable for small medium-sized batch production, can also be combined with multiple machines for mass production.


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