The traditional crank press uses an AC asynchronous motor as the motive force. Since the output speed of the AC asynchronous motor is generally not adjustable, the number of strokes per minute of the slider remains unchanged, and the speed and displacement curve of the slider in the entire stroke is often a sinusoidal curve. The speed at the top and bottom dead centers is zero, and the speed is large at the midpoint of the stroke. Generally, a large nominal force is exerted before the slider moves to the bottom dead center. The stroke of the slider is fixed and cannot be adjusted.
The mechanical press uses an AC motor as the prime mover, and eliminates the clutch, brake and flywheel. Because the AC motor has good speed regulation performance, low-speed and high-torque output characteristics (constant torque output at rated speed), fast start-stop characteristics and forward and reverse rotation characteristics, the mechanical press can be controlled by the motor to realize the sliding block. Different motion profiles, pre-programmed, combine the advantages of mechanical and hydraulic press
es. According to the needs of the stamping process, the movement speed and stamping force of the crank-slider mechanism can be adjusted arbitrarily, so that the working curve of the press can be matched with various application requirements. WORLD Press Machine official website www.pressmachine-world.com, please indicate the source for reprinting!
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