Extruder vacuumizing cleaning device

The utility model relates to the technical field of vacuum-pumping cleaning devices for extruders, in particular to a vacuum-pumping cleaning device for an extruder, which comprises a first cleaning device and a second cleaning device which are respectively inserted into the outer side wall of a machine barrel of the extruder and communicated with an inner cavity of the machine barrel, a first clamping mechanism is arranged between a first vacuum barrel and the machine barrel of the extruder, and a second clamping mechanism is arranged between a second vacuum barrel and the machine barrel of the extruder. A first limiting mechanism is arranged between the first vacuum cylinder and the first piston column, a second clamping mechanism is arranged between the second vacuum cylinder and the extruder cylinder, and a second limiting mechanism is arranged between the second vacuum cylinder and the second piston column. The vacuum-pumping cleaning device overcomes the defect that an existing vacuum-pumping cleaning d