11. Threading: The passage through which the threading thread passes.

12. Take the wire rod: Take the important function of keeping the wire on a certain degree of looseness and wire feeding. In some cases, when sewing and sewing can not be sewn, the important function of this wire feeding is often ignored. It is necessary to check whether the sewing thread passes the thread take-up lever.

13. Extension base plate: It is a tool for storing presser foot, needle, bobbin and the like.

14. Crossing rod: threading passage.

15. Adjust the tension of the thread: When sewing normally, the upper thread tension dial is adjusted to AUTO, which covers most sewing fabrics.

16. Crossing the line: threading the passage.

17. Wire frame: Put the small spool and cover the retaining wire.

18. Around the bobbin (around the bottom line): Thread the hand by hand into the bobbin to automatically wind the bottom line or foot around the bottom line.

Presser foot part:

19. Automatic threading device: Use the left hand to press and hold the automatic threading device, and the right hand to take the sewing thread to hook the self-threading hook, you can put the thread into the needle.