A piston type continuous quantitative feeding mechanism comprises at least one driving mechanism, at least one material storage bucket, at least one sealing mechanism and at least one switch apparatus, wherein the driving mechanism fixes the material storage bucket at an operation area of a base, and a pusher space and a stock space having the same square surface areas are intervally formed by the material storage bucket incorporated with a sealing plate of a sealing apparatus so that muddy raw materials can be directly and fully filled in the pushier space from the stocking space equivalently and pushed in the pusher space at a constant speed by using a piston so as to form discharged materials. Accordingly, the purpose of quantitative feeding is achieved. Moreover, twisting, pulling, entwisting and kneading the raw materials may also be eliminated by way of employing the pushing and feeding of a piston to further effectively retain the feeding quality of the raw materials, preventing a temperature from being too high or from excessively rubbing to reduce taste of processed food, thereby enhancing its practicability.一種活塞式連續定量送料機構,其包括有:至少一驅動機構、至少一儲料桶、至少一密封機構及至少一開關裝置,該驅動機構以基座之作業區固定該儲料桶,並由儲料桶配合密封裝置之密封板間隔形成有相同方形表面積之推料空間與備料空間,讓泥狀原料能等量的由備料空間直接填滿該推料空間,再利用活塞定速推移於推料空間形成出料,藉此達到定量送料之目的,而且採用活塞推動送料方式亦能消除對原料的搓拉捻揉,進而有效維持原料的送料品質,以防止溫度過高或過度搓揉而降低其加工食品之口感之情況,俾以提高其實用性。10‧‧‧驅動機構11‧‧‧基座12‧‧‧活塞121‧‧‧凹槽122‧‧‧密封圈13‧‧‧架體14‧‧‧作業區17‧‧‧螺桿171‧‧‧頭部20‧‧‧儲料桶20A‧‧‧推料空間20B‧‧‧備料空間21‧‧‧底板22‧‧‧側板221‧‧‧滑槽23‧‧‧前板231‧‧‧活塞口24‧‧‧後板241‧‧‧出料口242‧‧‧嵌合槽25‧‧‧蓋板26‧‧‧空氣加壓裝置27‧‧‧彈性滑條271‧‧‧槽口30‧‧‧密封機構31‧‧‧氣壓缸32‧‧‧線軌33‧‧‧密封板331‧‧‧刀刃34‧‧‧第一緩衝器35‧‧‧第二緩衝器40‧‧‧開關裝置41‧‧‧殼體411‧‧‧十字孔42‧‧‧作動器44‧‧‧切換缸46‧‧‧Y字管
