圆压圆模切机工作过程中的注意要点 Key points in working process of circular die cutting machine

圆压圆模切机在工作时，送纸辊将纸板送到模压版滚筒与压力滚筒之间，由两者将其夹住对滚筒进行模切，模切版滚筒旋转一周，就是一个工作循环。
　　圆压圆模切机一般分为硬切法和软切法两种模式。硬切法是指模切时刀与压力滚筒表面硬性接触，因而模切刀较容易磨损。软切法是在压力滚筒的表面覆盖一层工程塑料，模切时，切刀可有一定的切入量，这样既可以保护切刀，又能保证完全切断，但需要定期更换塑料层。
　　圆压圆模切机的版台及压切机构形状都是平板状的，当版台和压板的平面在垂直位置时为立式平压平模切机。模切机在工作时，压板经传动压向版而对版台施压。按压板运动轨迹不同可分为两类：一种是压板绕固定铰链摆动，故在开始模压的一瞬间，压板工作面与模版面之间有一定倾角，使模切版较早地切入纸板下部，这就容易造成模工版下部压力过重而上部未完全切透的现象。此外，模切压力的分力还会引起纸板的横向位移。另一种压板运动机构模切机在工作时，压板在连杆的带动下，先以圆柱滚子为支点，在机座的平导轨上摆动，待压板的工作面由倾斜转到与模压版平行的位置时，再以平移的方式平行压向模切版。 

When the circular die-cutting machine is working, the paper feeding roller will send the paperboard between the platen roller and the pressure roller, and the two will clamp the platen for die-cutting. The platen roller will rotate for one circle, which is a working cycle.

Circular die cutting machine is generally divided into hard cutting method and soft cutting method. The hard cutting method refers to the hard contact between the cutter and the surface of the pressure roller during die cutting, so the cutter is easy to wear. Soft cutting method is to cover the surface of the pressure roller with a layer of engineering plastic. When die cutting, the cutter can have a certain amount of cutting, which can protect the cutter and ensure complete cutting, but the plastic layer needs to be replaced regularly.

The shape of the platen and the pressing mechanism of the circular die-cutting machine is flat. When the platen and the platen are in the vertical position, it is a vertical flat die-cutting machine. When the die-cutting machine is working, the pressing plate is pressed to the plate by transmission, and the plate is pressed. Pressing plate can be divided into two categories: one is that the pressing plate swings around the fixed hinge, so there is a certain angle between the pressing plate working surface and the template surface at the moment of starting the die pressing, so that the die cutting plate cuts into the lower part of the paperboard earlier, which is easy to cause the phenomenon that the pressure in the lower part of the die plate is too heavy and the upper part is not completely cut through. In addition, the component of the die cutting pressure will also cause the lateral displacement of the paperboard. When the die-cutting machine is working, driven by the connecting rod, the pressing plate first takes the cylindrical roller as the fulcrum and swings on the flat guide rail of the machine base. When the working surface of the pressing plate turns from the inclined position to the position parallel to the die-cutting plate, it presses the die-cutting plate in parallel in the way of translation.