Vertical Reflow Oven MSTX-600
Automatic vertical reflow oven. Ready for large PCB’S, simple to operate, reliable performance
Automatic vertical curing oven is specially used after dispensing backend process and to solve the bottleneck operation process. This automatic curing system is composed of seven parts: PCB entry (pallet) device, lifting device, transition device, PCB exit device, heating device, width adjusting device and control system.
The control system adopts self-developed PLC, the driving motor is stepper motor and servo motor of famous brand. Friendly touch screen interface makes the whole system precise, simple to operate, reliable performance, continuous curing process and adjustable curing time, which is the best choice for curing process.
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.
- PCB size: 600x600mm (L*W)
- Conveyor: Bottom and return
- Distance between slots: 50mm
- Numbers of slots: front 32 cages, rear 32 cages
- Weight: More than 6kg per layer
- Zones: 3 Temperature zones and 5 probes
- Heating control:
- Temperature monitoring probes (thermocouple)
- Heating speed can be adjusted
- Photoelectric sensor: Detect the position of PCB
- Fiber optic sensor: Detect the position of PCB
- Lifting limit detection fiber
- Width adjusting device: The moving rail moves to adjust the width
- Safety: CE Safety measures and protection devices
Fiber Optic Sensor
|Heating zone qty||Top 2, bottom 2|
|Direction||Left to right, up to bottom|
|Power||3P 380V 50/60HZ|
|PCB thickness||2*5mm – pallet:5*45mm|
|PCB bending rate||Up& bottom ≤1.0mm|
|Stocking PCB qty||Top:32 layers – bottom:32 layers|
|Conveying method||Support strip|
|Conveying speed||0-2000mm/min adjustable|
|Oven surface temp.||≤65°C (under room temp.)|
|Controllable temp||Indoor 200°C|
|Heating compensation temp||±3°C|
|Control method||Touch screen+ PLC / industrial computer+ PLC|
|Data monitor||Computer data record and enquiry|
|Authorization||Can be set|
|In accord to national standard||Yes|
|Abnormal temp. stop||Signal of PCB enter and exit, trigger device|
|Heat radiation system||Yes|
|Protection device||Safe guardrail, emergency stop, safe marks|
|Safe device||Open the safety door to alarm and automatically shift to temp. dropping mode|
|Over temp. protection device||Heating stops, PCBs inside come out|
|Technique support||48 hours|
|Software upgrade||Free of charge|