The utility model relates to a
water jet loom, in particular to an automatic
water jet device for the
water jet loom, which comprises a pressure pumping
assembly and a driving
assembly, the driving
assembly is rotatably connected to one side of the pressure pumping assembly, the pressure pumping assembly comprises a cylinder body, a
discharge hole is arranged at the end of the cylinder body, a liquid inlet hole is arranged on one side of the cylinder body, and a cooling box is fixed on one side of the cylinder body. The top of the cooling box is in threaded connection with a sealing cover, a
piston is slidably connected into the cylinder body, a lubricating channel is formed in one side of the
piston, and a first rotating shaft is fixed into the
piston. The driving assembly comprises a motor, a
rotating disc is fixed to the output shaft end of the motor, and a second rotating shaft is fixed to one side of the
rotating disc. By means of the mode that the piston reciprocates in the cylinder body, the high-pressure and short-interval type water spraying mode that water is pumped through air negative pressure and sprayed out through high
water pressure is achieved, and by means of the design of the water inlet assembly and the water outlet assembly, one-way flow of
water flow can be achieved through the water inlet
pipe and the water outlet
pipe.