Factory of Stacker Cranes Shares Safety Measures for Automated Vertical Storage Systems

1. Slack and rope break protection device: In the event that the stacking machine's steel wire rope sags or breaks during lifting, the power supply to the lifting motor is automatically cut off, and the load platform's brake is locked onto the column, preventing the load platform from falling.

2. The stacker is equipped with an overload protection device, which automatically cuts off the lifting motor power when the load exceeds 10% of the rated lifting capacity.

The stacker is equipped with a lift limit switch and a dual protection device featuring mechanical cushioning. When the load platform exceeds the normal lifting and lowering travel and reaches the upper and lower limit positions, the switch is triggered, automatically cutting off the power supply to the lifting motor, causing the load platform to stop. Additionally, shock-absorbent cushion blocks are installed beyond the upper and lower limit positions, forcing the load platform to cease operation.

4. The stacker is equipped with a dual protection system featuring a running limit switch and mechanical cushion blocks. When the stacker exceeds its normal operating range and reaches the left and right limit positions, the switch is activated, automatically cutting off the power supply to the running motor, causing the stacker to stop. Additionally, shock-absorbing cushion blocks are installed beyond the left and right limit positions, forcing the stacker to cease operation. The force acting on the cushion blocks is calculated under the conditions of the stacker being fully loaded and traveling at high speed.

5. The stacker is equipped with a manual emergency stop button, which can cut off the main power supply to the stacker in case of an emergency.

6. Pallet Stacker Electrical Interlock Protection

7. The multi-location forklifts are equipped with interlocks to ensure that only one location can control the forklift at any given time.

Section 8: Interlock should be provided among different control methods to ensure that only one control mode—manual, semi-automatic, automatic, or computer online—is selected at any given time.

When the fork is not in the middle position (not in the correct position during retraction) or the fork is in motion, the stacker's movement and rapid lifting will be locked; when the stacker's movement, rapid lifting, or the stacker malfunctions, the fork will be locked.

The control circuit should also feature the following standard interlocks and protections: voltage loss protection, operating switch zero position protection, motor forward and reverse interlock, interlock for different speed levels, short-circuit and overload protection.