The oil pump is installed in the oil tank and immersed in hydraulic oil to achieve the design purpose of scientific heat dissipation and noise reduction. Under the drive of the motor, the oil pump outputs hydraulic oil, pushing the plunger in the clamping oil cylinder to move, causing the radial contraction of the mold seat, and achieving the compression of the mold on the outer sleeve of the rubber hose joint. When the shrinkage reaches the predetermined value of the micrometer, the squeezing automatically stops, the electromagnetic directional valve is reversed, the plunger in the oil cylinder moves in the opposite direction, the mold opens, and the clamping of the rubber hose is completed.
