Extractor

The utility model discloses an extraction machine which comprises an extraction tank body, an inner cavity is formed in the extraction tank body, a discharging barrel is arranged on the extraction tank body, a pressing disc is arranged in the discharging barrel in a sliding mode, a discharging cavity is formed between the pressing disc and the discharging barrel, a feeding opening communicated with the discharging cavity is formed in the discharging barrel, and a cover plate is arranged at the feeding opening. The discharging barrel is communicated with the inner cavity to form a discharging opening, the pressing disc slides between the discharging cavity and the discharging opening in a reciprocating mode and moves towards the discharging opening to enable the discharging opening to be communicated with the discharging cavity, a control assembly for controlling the pressing disc is arranged on the discharging barrel, and a one-way exhaust assembly is arranged on the pressing disc. The pressing disc moves tow