平缝机偶尔跳针处理方法 The solution for skipped stitch

     在服装缝制过程中，有时会出现跳针问题，以下跟大家分享一些平缝机所发生的偶尔跳针问题的解决办法：

Durning the machine sewing, sometime it will have the skipped stitch, please check the solution as below:

安全注意事项：为防止意外发生，请务必先将电源关闭

Attention: please shut down the power to prevent accident

1、正确的穿线方法 The correct way for threading 

示范机型：佳岛H5-5T

Example model: H5-5T 

完整图Complete Graph

步骤图Step Diagram

2、检查机针针尖是否起毛或机针弯曲 Checking the needle point whether bend or burr

机针长时间高速穿刺布料，导致针尖发热、变钝，甚至弯曲。刺穿布料时，针尖和旋梭尖的间隙变化，梭尖不能正常勾线，出现跳针现象。

With the long high speed working, the needle point will become blunt, even bent. The distance between the needle point and hook becomes large, hook point can't hooking the thread, then the machine will have skipped stitch. 

3、旋梭和机针的正确关系 The right position between the hook and the needle. 

转动手轮使机针由下死点向上回升2.2-2.5mm,这个时候机针保持在针孔上方1~1.1mm，在此状态下把机针和旋梭的间隙调整为0.05~0.1mm

Turn the hand wheel, make sure the needle position is in 2.2-2.5mm  (from the bottom to up),  adjust the needle position within 1-1.1mm(above needle hole). Then adjust the distacne with 0.05-0.1mm between the needle and hook.

4、合适有压脚压力 Adjust the presser foot

松开调压螺母，旋松调压螺钉以调整压脚压力，顺时针脚压力增大，反之减小，标准位置29~32mm

Loose the presser foot nut, adjust the presure to fit the presser foot, clockwise is heavy, anticlockwise is light, the right postion is 29-32mm