Reflow Oven MSTX

HEATING DEVICE

The motor drives the wind wheel in the heating box to provide heat to the inner of oven. The hot air flows down the air ducts on both sides of the equipment and enters the chamber of through the mesh plate, forming the vortex of airflow sucked in the external exhaust, and finally forming a circulation flow in the chamber.

CONTROL OF PCB ENTRY DEVICE

The stepper driver’s speed is controlled by the main PLC. A photoelectric sensor control the starting PCB entering device. A limit photoelectric sensor detects if the position of entered PCB is correct. If not, it will give suspend the operation of the equipment.

A fiber optic sensor, installed in the chamber, is used to detect whether the PCB is in place or not.

CONTROL OF LIFTING DEVICE

The driving mode of lifting mechanism components is driven by servo motor, which is connected with the main controller (PLC). According to the preset program, the movement speed and positioning of the bracket in the chamber are controlled. The lifting limit detection fiber is installed at the bottom of the exit. When the exit layer declines beyond the detection limit, operation is suspended.

PCB EXIT DEVICE

Two parallel chains are installed on the side exit and pushing device is installed on the two chains. The chain is driven by the installed sprocket wheel. A stepper motor is installed below the exit to drive the two sprockets to work and move the product from the exit layers to the connection device outside the chamber. The exit driving is by step motor, the speed is controlled by PLC.

System work flow

When the equipment is running, the heat flow air is continuously sent into the chamber. After the temperature reaches the preset one, the product (pallet) enters the plate layer on the side, the lifting device moves up layer by layer until it reaches the transition layer. The transition device will send the product to the side of the exit, and then the lifting device will move the product down layer by layer and send it to the exit layer. Exit device sends products out of the oven; the cycle of work continues to complete the process.