Application of Delta AH500 in Door Panel Production Line

Application of Delta AH500 in Door Panel Production Line
This set of door panel production line control uses Delta AH500 series PLC and Delta touch screen DOP-B07E515.
The extension cable between the main backplane of the AH500 series and the extension backplane can be up to 100 meters, which greatly improves the flexibility of wiring. In the past, the complex configuration that needed to connect multiple small PLCs and write multiple sets of programs or required remote I/O can be realized. The configuration of single CPU plus area expansion realizes integrated control.
AH500 PLC configuration diagram

The position of the first row of PLC above is in the electric box before the assembly station;
The second row of PLC is located in the electric box in front of the painting station;
The third row of PLC is located in the electric box in front of the dispensing station;
The fourth row of PLC is located in the power cabinet.

Equipment site map
System architecture diagram of door panel production line

The picture above shows the system architecture of the door panel production flow
The door panel production line is divided into two products: stainless steel and carbon steel according to the material. The processing technology of the two materials is different.
Stainless steel product process
Loading, dispensing, assembly, arc welding, spray painting and palletizing (unloading)
Carbon steel product process flow
Loading, assembly, spot welding, arc welding and palletizing (unloading)
The following is a brief introduction to the actions of each station
Flip station
Sequence of actions:
The PLC produces the material number for the feeding robot. After punching and bending the material, the feeding robot discharges the material in place, and the communication sends the PLC signal to suck the vacuum. When the vacuum detection signal is turned over, the motor is turned in place and the vacuum solenoid valve loses power, and the vacuum blows off. The turning motor reverses and returns to the horizontal detection position. The material on the conveying roller is detected, and the conveying roller will send the material to the next station.
Dispensing station

Dispensing station
Sequence of actions:
Dispensing station detects that there is material, the front blocking cylinder rises, the front end of the blocking cylinder sensor detects the in-position signal before the dispensing conveying roller table motor moves, the clamping cylinder clamps the conveying roller table, the motor stops, the front blocking cylinder goes down, the rear blocking cylinder goes up, dispensing glue The upper and lower cylinders collect the glue and the upper and lower cylinders dispense the glue. The upper and lower cylinders dispense the glue valve. After the glue is discharged, the glue is shifted and the servo moves the glue front end. After the glue is dispensed, the glue moves and the servo moves to the rib position. After the glue valve is opened, the sensor at the front of the blocking cylinder detects the signal. The conveying roller motor stops the dispensing movement and the servo moves the dispensing clamping cylinder to loosen, and the conveying roller motor moves to send the material to the next station.
Debinding function
Press the green button of the line body button box, the glue is collected on the upper and lower cylinders, and the cylinder is delayed for 5 seconds to discharge glue
Press the yellow button of the line button box, and the discharge valve will close and delay for 30 seconds (wait for the glue head to fall).
There are two switch buttons on the touch screen

Assembly station
Sequence of actions:
The assembly station detects that there is material and blocks the cylinder from rising. The conveyor roller motor moves and blocks the front end of the cylinder. The sensor detects the signal in place. The clamp cylinder clamps the conveyor roller. The motor stops, and the block cylinder descends. The PLC signals the assembly robot. The assembly robot is assembled. The PLC signal hole positioning cylinder extends action, and the hole positioning cylinder returns to its original position with a delay of 0.5 seconds, and the transfer trolley moves to the assembly station. After the reclaiming is completed, the transfer trolley takes the material to the next station.
Loading trolley
After the loading trolley is pushed in place, press the lock button to lock the loading trolley. When the reinforcing ribs are empty, the loading trolley will be released. In order to prevent A and B from pushing the wrong position, the loading trolley is installed in different positions (that is, the loading trolley A is pushed to the B position, and the trolley cannot be detected when it is pushed in place, and it will not be locked)
Components of transfer trolley:
Sequence of actions:
The transfer trolley descends, the upper and lower cylinders on the right side descend, and the four positioning cylinders in front of the right front and rear cylinders suck vacuum. After the vacuum is reached, the assembly and clamping cylinder loosens the transfer trolley and moves up to the next station.

Pressing station
Sequence of actions:
After the stainless steel product transfer trolley takes the material, the material is brought to the pressing station for unloading, the transfer trolley is moved to the spot welding station, and the lifting cylinder rises and 6 compression cylinders drop. When the compression time is up, the compression cylinder returns Bit jacking cylinder down
Spot welding station
Sequence of actions:
Transfer the trolley to the welding position of the front plate, after the positioning is completed, send the welding signal to the spot welder to weld the spot welder. After the welding is completed, transfer the trolley to the PLC signal to move to the next position, and the positioning is completed to give the spot welder a welding signal ----- -Until the 17 points are welded to complete the unloading of the transfer trolley, the conveyor roller will send the material to the next station
Arc welding station
Sequence of actions:
The arc welding station detects that there is material, blocking the cylinder to rise, the conveying roller motor action blocks the front sensor of the cylinder to detect the signal in place, the clamping cylinder clamps, the conveying roller motor stops, blocking the cylinder descending, the left cylinder is out, and the right cylinder is out of the PLC for arc Welding robot welding signal After the welding is completed, the welding robot signals the left air cylinder to the PLC, and the right air cylinder moves into the conveying roller table motor.

Painting station
Sequence of actions
The paint spraying station has material detected, and the cutting knife cylinder sprays paint to block the front end sensor of the cylinder to detect the signal. The cutting knife cylinder enters, the conveying roller table stops, the front end spraying exhaust fan is turned on, the spraying action is 4 seconds (settable) and then the spraying stops the palletizer The sensor at the front of the position blocking front does not detect the material and the palletizing station is not in motion, the painting and palletizing conveyor roller moves, the paint clamping is released, and the palletizing front sensor detects the material is in place and the palletizing clamping cylinder clamps the painting for 4 seconds. (Can be set) After the painting stops, the exhaust fan stops stacking to block the cylinder, the clamping cylinder loosens the conveying roller table action, and sends the material to the next station
Palletizing station
Action sequence:
After the material is in place, the clamping cylinder is clamped. After the clamping cylinder is clamped in place, the clamping cylinder is released to signal the palletizing station. After the palletizing robot has completed its action, it will signal to the PLC and the palletizing station is completed.
The main operation pages of the touch screen are as follows: