Mounting head is also called as suction nozzle, it is the most complex and core part of the program application and components on the mounting machine. If compared to a person, it is equivalent to a human hand. Because in the placement processing components placed on the PCB board action is needed to be consistent “pick up – move – positioning – paste put” operation to complete. The whole process is controlled by the edited program, so the cycle of movement, so as to pick up the material from the material belt after moving to the PCB circuit substrate on the designated position of the placement process.
The type of mounting head is divided into single head and multi-head two categories, multi-head mounting head is also divided into fixed mounting head and rotary mounting head kind, rotary mounting head including heavy straight rotary turntable type mounting head and horizontal rotary/turret type mounting head two kinds. Fixed type single head and multi-head because work is two-dimensional plane work, that is, only X, Y two directions of doing work movement, so also known as flat moving type mount head.
I. Vertical rotating/rotary type mounting head. The rotary head because is the circumference 360 degree suction nozzle installation space, generally in a rotary head can install has 6-30 suction nozzles, also can adjust each mount head mount angle. Although can install the suction nozzle more, also can realize the multi-angle mount. But because it is more complicated, in the nozzle are equipped with vacuum sensor and pressure sensor. The precision degree is very high, so in the whole equipment use need to bear the maintenance cost is relatively high.
II. The horizontal rotation/turret type mount head. Turret concept actually with rocking arm on combination many mount head is the same, because this kind of mount head itself is will be more than one mount head to form a whole, basic form is within the circle is ring-shaped distribution or is the star line radiating distribution affixing head, in carries on the smt patch this process affixing head in the horizontal direction clockwise rotation, because this action is similar to the turret, therefore is called the turret.
In the current smt patch processing factory most of the patching machine are horizontal rotation / turret type mount head machine, currently accounts for more than 85%.
Post time: Apr-29-2022