Movable buffer, automated material handling system and corresponding overhead hoist transfer

A movable buffer, applied to an automated material handling system, the automated material handling system comprising overhead buffers, and the movable buffer comprising:

• an inclined track comprising a first end and a second end opposite to each other, wherein the second end of the inclined track is higher than the first end of the inclined track;
• a storage tray connected to the inclined track, wherein the storage tray is provided with a space for accommodating a front opening unified pod, and the storage tray is provided with at least one opening for sending in or taking out the front opening unified pod;
• and
• a transmission mechanism, wherein the upper surface of the transmission mechanism is connected to the lower surface of the overhead buffer, the lower surface of the transmission mechanism is connected to the inclined track, and the transmission mechanism is used for driving the storage tray to slide from the first end of the inclined track to the second end of the inclined track under the action of an external force, so that the storage tray moves out relative to the overhead buffer.