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我厂在使用国产机夹切断刀(结构大体如图1),发现有这样两个问题;一是压板压在刀片压板处是锯齿,而压在刀体处是支承螺钉,这种结构的优点是可调整压板平行地压在刀片压板和刀体上,缺点是切削使刀片所受径向力较大,没有制约刀片压板随刀片向后移动的因素;二是一种刀体只有一种刀垫和刀片压板,也就只能使用一种几何尺寸的刀片,未能充分利用刀体。针对这两个问题,我们自行设计制造了如图1所示的切断刀,使用情况较好。
I plant the use of domestic machine folder cut off the knife (the general structure shown in Figure 1), found that there are two problems; First, the platen pressure in the blade platen is serrated, and the pressure in the blade body is a support screw, the advantages of this structure Is adjustable pressure plate parallel to the pressure plate and knife body blade, the disadvantage is that the cutting blade radial force suffered by the larger, there is no restriction of the blade platen with the blade backward movement of the factors; the second is a knife body with only a knife Pad and blade platen, you can only use a geometry of the blade, failed to make full use of the blade body. In response to these two issues, we designed and manufactured the cutting knife shown in Figure 1, the use of the situation is better.