Joy Technology Co.,Limited

SMT placement machine working principle and models

SMT Mounter, in general,it is a kind of a Equipment attached to a device, but how is the placement of the working principle ? Here we will explore it together.

1.Introduction of Mounter working principle
Mounter, also known as "Mounter", "Surface Mount System", which is configured on a dispenser or screen printer, is placed by placing the surface mount component accurately on the PCB pad by moving the mounting head Of a device. It is used to achieve high-speed, high-precision placement of components of the device, is the entire SMT the production of the most critical and most complex equipment. Mainly divided into two kinds of manual and automatic machine.

2. Mounter working principle - structural function
The current placement machine many varieties, but whether it is automatic high-speed placement machine or manual low-speed placement machine, it is by the rack, PCB transmission and bearing organization, drive system, positioning and alignment system, Feeder, optical identification system, sensor and computer control system, 
the following we briefly introduce its function:

Rack - the foundation of the machine, all the drive, positioning the organization and the feeder are firmly fixed on it, so it is necessary to have to meet the mechanical strength and rigidity.

PCB transmission and carrying organization ---- transmission organization is placed on the rails on the ultra-thin belt conveyor system, its role is to send the PCB to the reservation position, patch and then sent to the next process.
Drive system ---- it is the key to the placement machine organization, but also to evaluate the accuracy of the main placement machine indicators, which includes XYZ drive layout and servo system, including support for the movement of the head and support the load bearing.


3. Mounter working principle - arch model
The working principle of the arch-type placement machine: the first component feeder, the substrate is fixed, the patch head in the feeder and the substrate to move back and forth between the components from the feeder out, and then through the component position and direction of the adjustment, the last paste Placed on the substrate.
The advantages of this type of model is: the system structure is simple, can achieve high precision, suitable for all sizes, shapes of components, and even special-shaped components, feeder belt, tube, tray form. Suitable for small and medium-volume production, but also more than one machine for high-volume production.

4. Mounter working principle - turret model
Rotary Type Mounter Working Principle: As shown in the figure below, the component feeder is placed on a moving vehicle with a single coordinate movement. The substrate is placed on a table moving on an X / Y coordinate system. The patch head is mounted on a turret On the work, the material will move the component feeder to the reclaiming position, the chip on the head of the vacuum suction nozzle in the reclaiming position to take the components, the turret to the patch position, in the process of rotation through the component position and Direction of the adjustment, the components posted on the substrate.
This model is superior in speed and is suitable for mass production, but it can only be packaged with components, if it is a dense, large integrated circuit, only the tray packaging, it can not be completed, so it depends on other Models to work together.