SEWING MACHINE

摘要

A sewing machine may comprise a needle bar driving mechanism, a cutting needle rotation mechanism, and an embroidery frame movement mechanism configured to move an embroidery frame comprising a protruding portion. A cam member may be fixed to the needle bar and comprise a plurality of cams. A processor of the sewing machine may set a height of the needle bar to a specific position from a plurality of positions. Each of the plurality of positions may represent that each of the plurality of cams is able to contact with the protruding portion. The processor may instruct the needle bar driving mechanism to move the needle bar to the specific position and instruct the embroidery frame movement mechanism to move the embroidery frame to a position where the protruding portion is able to contact with one of the plurality of cams.

主权项

1. A sewing machine comprising:
a needle bar driving mechanism configured to move a needle bar in a first direction; an embroidery frame movement mechanism configured to receive an embroidery frame, and configured to move the embroidery frame along a second direction crossing the first direction, wherein the embroidery frame comprising a protruding portion that protrudes outward from the embroidery frame; a cutting needle rotation mechanism comprises:
a cutting needle;a cam member to which the cutting needle is fixed, and the cam member comprising a plurality of cams arranged along the first direction and rotatable around the first direction, each of the plurality of cams comprising a surface portion that comprises a width along the first direction and arranged in different positions along the first direction; anda support mechanism configured to support the cam member on the needle bar rotatably; a processor; and a memory configured to store computer-readable instructions that cause the sewing machine to:
set a height of the needle bar to a specific position from a plurality of positions, each of the plurality of positions representing that each of the plurality of cams is able to contact with the protruding portion;instruct the needle bar driving mechanism to move the needle bar to the specific position; andinstruct the embroidery frame movement mechanism to move the embroidery frame along the second direction to a predetermined position where the protruding portion is able to contact with one of the plurality of cams.