A cutter device for a cutter, comprising a lower seat unit, a cutter unit, an upper holder unit, and a plurality of pressure knife units. The cutter unit includes a lower blade fixed to the lower seat unit and an upper blade stacked on the lower blade. Each press unit includes a bridge plate, a pressure plate disposed above the bridge plate, and a fixing component. The bridge plate has a contact portion that is adhered to the upper holder unit at two intervals, two inclined portions that are respectively inclined upward by the contact portions, and a bridge portion that is connected between the inclined portions. The pressure plate has two pressing portions respectively pressed on the contact portions, and a connecting portion connected between the pressing portions. The pressing portions directly press the contact portions, thereby reducing wear and tear during power transmission to ensure the stability of the clamping force.一種割刀機之刀具裝置，包含一下刀座單元、一刀具單元、一上刀座單元，及複數壓刀單元。該刀具單元包括一固設於該下刀座單元上的下刀片，及一疊置於該下刀片上的上刀片。每一壓刀單元包括一橋板、一設置於該橋板上方的壓板，及一固定組件。該橋板具有二相間隔地貼抵於該上刀座單元上的貼觸部、二分別由該等貼觸部向上傾斜的傾斜部，及一連接於該等傾斜部間的橋接部。該壓板具有二分別壓設於該等貼觸部上的壓設部，及一連接於該等壓設部間的連接部。該等壓設部直接壓制該等貼觸部，從而可減少力量傳遞時的耗損，以確保夾制力的穩定。
