Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 15 Issue 12
- /
- Pages.37-47
- /
- 1998
- /
- 1225-9071(pISSN)
- /
- 2287-8769(eISSN)
A Study on Feed Dog Motion of a Lock Stitch Sewing Machine
본봉용 재봉기의 톱니 운동에 관한 연구
Abstract
This study discusses the feed dog feeding mechanism of an industrial lock stitch sewing machine, which is a good example to study a machine kinematics. The feed dog feeding mechanism makes the fabrics directly be fed by an elliptic motion of the feed dog that is moved by a rotation of the top shaft and controlled by the feeding control mechanism. This study makes mathematical expressions of machine's motion in the feed dog feeding mechanism. Thus, the motions of this mechanism are characterized, namely how an elliptic motion of the feed dog is affected by the feeding control mechanism. Therefore, the above mathematical expressions may be a basis for the new design of the feed dog feeding mechanism and may be adapted to analysis. Development of the similar feed dog feeding mechanism can be applied to other type sewing machine.