The press is driven by the motor through the drive mechanism to exert the process force on the workpiece.
The transmission mechanism is the deceleration mechanism of belt drive and gear transmission, the working mechanism is divided into spiral mechanism, crank linkage and hydraulic cylinder. The pressure machine is divided into three categories: Screw press, Crank press and hydraulic press.
Crank Press is also called Mechanical press. Screw Press no fixed under the dead center, the larger die forgings, can be repeated blow molding, you can do singles, even hit and inch moving. The striking force is related to the deformation amount of the workpiece, the shock force is small when the deformation is large and the deformation is small (such as cold strike). In these respects, it is similar to a hammer.
But its shock force through the rack closed, so the work is smooth, vibration is much smaller than the hammer, do not need a great foundation. The lower part of the press is fitted with a forging ejection device. Screw presses with a die forging machine, mechanical presses, such as a variety of forging machinery, the role of universal, can be used for die forging, punching, drawing and other processes. In addition, the screw presses are simple in structure and easy to manufacture, so they are widely used.
