NOZZLE, MULTI-LIQUID MIXED RESIN INJECTION MACHINE, AND METHOD FOR PRODUCING MULTI-LIQUID MIXED RESIN

To provide a nozzle which can adjust a flow rate of a fluid, and a multi-liquid mixed resin injection machine using the nozzle.SOLUTION: A nozzle includes a cylinder 10, and a piston 30 inserted into the cylinder. The cylinder has a central axis, and includes a first internal space 13, and a second internal space 14 separated therefrom along the central axis. The piston is slidable along the central axis in the cylinder, and partitions the first and second internal spaces. The cylinder includes a first inlet 16 which receives the fluid in the first internal space and communicates with the first internal space, a first outlet 17 which discharges the fluid in the first internal space and communicates with the first internal space, and a second inlet 18 which receives working gas in the second internal space and communicates with the second internal space. The piston includes a first head 31 facing the first internal space, and a second head 32 facing the second internal space. The first head has a first projection area perpendicular to the central axis, and the second head has a second projection area perpendicular to the central axis and the second projection area is larger than 9 times the first projection area.SELECTED DRAWING: Figure 1 【課題】流体の流量を調整可能なノズル、及び該ノズルを適用した多液混合樹脂注入機を提供する。【解決手段】ノズルは、シリンダ１０とシリンダ内に挿入されたピストン３０とを備える。シリンダは中心軸を有し、第１内部空間１３と、そこから中心軸に沿って離れた第２内部空間１４とを含む。ピストンは、シリンダ内を中心軸に沿って摺動可能で、第１、第２内部空間を隔てる。シリンダは、第１内部空間に流体を受け入れる第１内部空間に通じる第１入口１６と、第１内部空間内の流体を吐出する第１内部空間に通じる第１出口１７と、第２内部空間に作動気体を受け入れる第２内部空間に通じる第２入口１８とを含む。ピストンは、第１内部空間に面する第１ヘッド３１と第２内部空間に面する第２ヘッド３２を含む。第１ヘッドは、中心軸に直交する第１投影面積を有し、第２ヘッドは、中心軸に直交する第２投影面積を有し、第１投影面積よりも９倍以上大きい。【選択図】図１