我厂工程师王之伟同志,改进了一种牛头刨床软线自动抬刀的装置,经过试验,效果良好。这装置的结构很简单,如附图所示,在牛头上装有一个底板1,底板1上用销子2装一个掣子3。这掣子的左端装有拉簧4,拉簧的下端固定在销子5上。杠桿6用销子7装在底板1上。杠桿6的下部装有一个扭簧11,上部连接一根钢丝8,这钢丝装在钢软管9中,一直连到刀架上的杠桿10上。 Our engineer Wang Zhiwei comrades, improved a shaper cords automatically lift the knife device, after the test, the effect is good. The structure of this device is very simple. As shown in the drawings, a base plate 1 is mounted on a bull’s head and a latch 3 is mounted on the base plate 1 using a pin 2. The left end of the latch is provided with a tension spring 4, and the lower end of the tension spring is fixed on the pin 5. The lever 6 is mounted on the base plate 1 by a pin 7. The lower part of the lever 6 is provided with a torsion spring 11 and the upper part is connected with a wire 8 which is attached to the steel hose 9 and which is connected to the lever 10 on the carriage.