Temperature control device for multi-layer co-extrusion double-color film mold

The utility model relates to the technical field of temperature control devices of dies, and discloses a temperature control device for a multi-layer co-extrusion double-color film die, which comprises a rotary opening and closing mechanism, a temperature control wall group and a temperature control liquid circulation device, the rotary opening and closing mechanism is fixedly arranged at the topof the co-extrusion die, and the temperature control wall group is connected to the rotary opening and closing mechanism. The rotary opening and closing mechanism controls the temperature control wallgroup to be opened or enclosed to the periphery of the co-extrusion mold; and the temperature control liquid circulating device is connected with the temperature control wall group. According to thedevice, a closed temperature control cavity can be formed after the multiple sets of arc-shaped temperature control side walls are connected with the fan-shaped bottom plate, then temperature controlliquid is circularly injecte