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发明公开
CN102211230A 可双向锯切的锯片 无效 - 撤回

可双向锯切的锯片
摘要：
一种可双向锯切的锯片，其锯片本体每一锯齿的前、后缘各设置有一锯刃，使该锯片在正、反转两个方向皆可产生锯切的作用，以延长锯片的使用寿命。锯片的锯齿的后缘锯刃的未开锋的钝角可刮除切口的毛边、残屑，而使切口成平滑状。锯片的前一锯齿的后缘锯刃尚在切口内时，后一个锯齿的锯刃的前缘锯刃已锯切入工作件，使锯片锯切工作件时不会偏移方向。本发明运用在一对正反转向锯切的双锯片上时，其中一锯片上设置凸点以使双锯片同轴紧密隔开，形成狭窄的间隔，以降低锯切作业中产生的摩擦高热，避免锯片变形，提高锯切效果。
摘要（英）：

The invention provides a saw bit capable of bidirectionally sawing. Front and back edges of each sawtooth of the saw bit body are respectively provided with a saw blade, so that positive and inverse rotation directions of the saw bit both can generate a sawing effect, and the service life of the saw bit is prolonged. The non-sharpened obtuse angle of the back saw blade of the sawtooth of the saw bit can scrape the rough edges and scraps of cuts, so that the cuts are smooth. When the back saw blade of a former sawtooth of the saw bit is in the cut, the front saw blade of the following sawtooth has sawed in a workpiece, so that the direction is not deflected when the saw bit is used for sawing the workpiece. When the saw bit is used on a pair of double saw bits sawing in positive and inverse directions, one of the saw bits is provided with a salient point to tightly separate the double saw bits coaxially, and a narrow interval is formed, so that the friction high heat generated during the sawing operation is reduced, deformation of the saw bit is avoided, and the sawing effect is improved.

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