Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.

Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.