Multi-channel polypeptide synthesizer

The utility model relates to a multi-channel polypeptide synthesizer which comprises a polypeptide synthesizer frame body used for bearing a reaction tank and a polypeptide synthesizer cabinet body used for synthesizing polypeptide, the back of the polypeptide synthesizer frame body and the back of the polypeptide synthesizer cabinet body are jointly provided with a cross arm, and the cross arm is transversely arranged. An arrangement mechanism is arranged at the position, close to the middle, of the cross arm and comprises a supporting plate horizontally arranged on the side, facing the polypeptide synthesizer frame body and the polypeptide synthesizer cabinet body, of the cross arm, a pressing plate is horizontally arranged above the supporting plate, one end of the pressing plate is rotationally connected with the supporting plate, and an insertion rod is arranged at the bottom of the other end of the pressing plate; the supporting plate is provided with a rubber sleeve allowing the inserting rod to be con