摘要:
The present disclosure relates to a sewing machine that sews patterns by moving a cloth holding frame holding a workpiece cloth in an X direction and a Y direction respectively based on sewing data of a pattern selected by a user and a controller therefore. The controller determines a cloth feed start timing so that an X feed start timing to execute an X directional feed for every feed operation in each sewing operation precedes a Y feed start timing to execute Y directional feed based on the sewing data. The controller allows cloth feed execution without an upper thread being wound on the sewing needle.
摘要:
The present disclosure relates to a sewing machine that sews patterns by moving a cloth holding frame holding a workpiece cloth in an X direction and a Y direction respectively based on sewing data of a pattern selected by a user and a controller therefore. The controller determines a cloth feed start timing so that an X feed start timing to execute an X directional feed for every feed operation in each sewing operation precedes a Y feed start timing to execute Y directional feed based on the sewing data. The controller allows cloth feed execution without an upper thread being wound on the sewing needle.
摘要:
A full rotary hook unit is provided below a needle plate of a sewing machine and is provided with an outer hook having a beak rotating integrally with a lower shaft in synchronization with a vertical movement of a sewing needle and a middle hook rotatably supported by the outer hook. A needle guide element that guides the sewing needle as well as adjusting the clearance between the sewing needle and the beak is formed independent of the outer hook and the middle hook. A position adjustment mechanism is provided that mounts the needle guide element on the outer hook or an element rotating integrally with the outer hook so as to allow adjustment of the positioning of the needle guide element in an axial direction of the lower shaft, thus allowing the clearance between the sewing needle and the beak to be readily adjusted.
摘要:
A thread cutting apparatus for a sewing machine according to the present invention is arranged in which a spindle for supporting a movable knife beneath a needle plate is located closer to the location of an upper thread loop than the location of a needle hole provided in the needle plate. The apical portion of the movable knife faces the loop opening of the upper thread loop frontwardly of the location of the needle hole. The apical portion of the movable knife that oscillates forward and backward around the spindle enters the loop opening of the upper thread loop from a direction perpendicular to the loop opening. Even when the upper thread loop is interrupted in the shape by the development of a hitch stitch, the movable knife can certainly catch the upper thread loop and cut the threads in combination with a stationary knife.
摘要:
A sewing machine includes an upper thread cutting mechanism (35) having an upper thread movable blade (40) cutting an upper thread (14) extending from workpiece cloth (W) through an eye (9a) of a needle (9) above a needle plate (5), an upper moving mechanism (36) reciprocally moving the upper thread movable blade (40) between a first upper thread take-up position and a second upper thread take-up position, an upper thread holding mechanism holding an end of the upper thread (14) cut by the upper thread cutting mechanism (35) when the upper thread movable blade (40) is moved reciprocally by the upper moving mechanism (36), an upper thread direction adjusting mechanism (33) located on the upper moving mechanism (36) and the upper thread holding mechanism (31) for adjusting a direction in which the upper thread (14) extending through the needle eye (9a) to the upper thread holding mechanism (31) is drawn.