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本文介绍了与过去结构完全不同的一种新型“旋转式送丝机构”。这种机构克服了以往送丝机构的缺点。在送丝滚轮上没有沟槽,滚轮端面为具有一定曲率的曲面。两滚轮彼此在焊丝的长度方向上倾斜一角度,交差安置,并夹住焊丝沿其圆周方向高速旋转。滚轮的压紧力由弹簧调整。这种送丝机构的工作原理是:滚轮在焊丝的纵向倾斜一角度后加以固定,使两滚轮
This article presents a completely new type of “rotary wire feed mechanism” that is structurally different from the past. This mechanism overcomes the shortcomings of the wire feeding mechanism in the past. There is no groove in the wire feeding roller, and the roller end surface is a curved surface with a certain curvature. The rollers are tilted at an angle to each other in the length direction of the welding wire and are arranged alternately and sandwich the welding wire to rotate at high speed in the circumferential direction thereof. The pressing force of the roller is adjusted by the spring. This wire feeding mechanism works is: roller in the longitudinal direction of the wire after a tilt angle to be fixed so that the two rollers