梭芯 meaning in English

cop latch

Set bobbin presser 1 down to make the winder come in contact with the belt
放倒梭芯压片1 ，让绕线轮接触皮带。
Place the bobbin in the bobbin case taking care of the winding direction of the thread
往梭壳安装梭芯时，请注意线的卷绕方向。
The moment the bobbin has been wound up , the bobbin presser is released , and the bobbin winder will stop automatically
绕线结束之后，梭芯压片分离，绕线轮自动地停止。
When making the sewing machine run idle , remove the bobbin case and the bobbin since there is the possibility that thread is entangled in the hook
让缝纫机空转时，有可能机线空绕而卷绕不到旋锁上，因此请卸下梭壳和梭芯。