There are various types of storage shelves in the warehouse, and the storage and retrieval methods are mainly divided into the following categories, including manual storage and retrieval, forklift storage and retrieval, and automatic storage and retrieval. Nowadays, many enterprises want to realize automatic warehouse operation, so they want to use automated warehouse shelves. For example, four-way car rack is a kind of automated storage rack. How does the four-way shuttle AGV enter and exit the warehouse? The warehouse heavy shelf production plant Haigris analyzed.

Four way shuttle warehouse

The four-way shuttle car is equipped with 12 wheels, which can travel in four directions along the track plane and freely reach any cargo space on the warehouse plane. The four-way shuttle is driven by the wheels on both sides at the same time to ensure that the car body does not deflect during operation, and it can run alternately along the longitudinal and transverse rails on the three-dimensional shelf.

At the same time, the four-way shuttle is an intelligent handling device that can not only walk longitudinally but also laterally. The four-way shuttle has high flexibility, can change the working roadway at will, and adjust the capacity of the system by increasing or decreasing the number of shuttle cars. If necessary, the peak value of the system can be responded to by establishing the scheduling mode of the working vehicle team, solving the bottleneck of entry and exit operations, and can also be replaced with each other, When a shuttle or elevator fails, other shuttle or elevators can be dispatched through the dispatching system to continue to complete the operation without affecting the system capacity. This device is suitable for both low flow and high-density storage, as well as high flow and high-density storage. It can achieve greater efficiency, cost and resources.

How does the four-way shuttle AGV enter and exit the warehouse?

1) Warehousing method

a) The technicians of the intelligent four-way shuttle first turn on the intelligent four-way shuttle and get it ready. The intelligent four-way shuttle is on standby;

b) After confirming the picking location of the intelligent four-way shuttle, WCS will plan the driving route according to the current location and destination location of the intelligent four-way shuttle, and then the staff will distribute goods to the intelligent four-way shuttle through WCS;

c) The intelligent four-way shuttle starts to carry out the delivery task according to the received task command;

d) On the crossing track, the intelligent four-way shuttle travels in the displacement mode through the actual distance. During the driving process, it continuously scans the tracks that the lower part of the vehicle body passes through. Each crossing position it passes, it judges and calibrates the distance it travels by scanning the tracks. When it is close to the destination, it fine tunes the parking position through the lateral laser sensor to achieve accurate positioning of the parking position;

e) In the sub channel, the intelligent four-way shuttle can scan the cross track and side calibration mirror reflector, judge and check the driving distance by scanning the point position, and achieve accurate positioning control in the sub channel to reach the destination;

f) When the intelligent four-way shuttle arrives at the selected picking position, the pallet drops, the goods are placed on the shelf, and the WCS system is notified of the completion of the delivery task;

g) The intelligent four-way shuttle continues to receive task instructions or returns to the standby area.

2) Delivery method

a) The technicians of the intelligent four-way shuttle first turn on the intelligent four-way shuttle and get it ready. The intelligent four-way shuttle is on standby;

b) After confirming the picking location of the intelligent four-way shuttle, WCS will plan the driving route according to the current location and destination location of the intelligent four-way shuttle, and then the staff will send the picking task to the intelligent four-way shuttle through WCS;

c) The intelligent four-way shuttle starts picking up goods according to the received task command;

d) On the crossing track, the intelligent four-way shuttle travels in displacement mode through the actual distance. During the driving process, it continuously scans the tracks that the lower part of the vehicle body passes through. Each crossing position it passes, it judges and checks the distance it travels by scanning the tracks. When approaching the destination, it fine tunes the parking position through the lateral laser sensor to achieve precise positioning control and parking;

e) In the sub channel, the intelligent four-way shuttle car scans the cross track and side calibration mirror reflector, judges and calibrates the driving distance by scanning these points, and realizes the control of precise positioning in the sub channel to reach the destination.

orginal source: https://www.wkrack.com/news/how-does-the-four-way-shuttle-agv-warehouse-in-and-warehouse-out/

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