Sewn material detection system of sewing machine

Abstract

The invention discloses a sewn material detection system of a sewing machine. The system comprises a sewing machine controller, a detection device connected with the sewing machine controller and a stabilized voltage power source providing power for the detection device and the sewing machine controller. The detection device comprises a modulating signal generator, an emitter emitting modulating light rays output by the modulating signal generator, a photosensitive element arranged in the projection direction of the emitter in a parallel mode, a lens group arranged on the left side of the photosensitive element in a parallel mode and converging the modulating light rays to a sewn material detection area, a signal amplifier for amplifying electric signals which are output by the photosensitive element and converted by the light rays reflected by the sewn material detection area and a signal comparator for comparing and calculating signals output by the signal amplifier and modulating signals generated by the modulating signal generator and outputting results to the sewing machine controller. The system is simple in structure, high in resolution ratio, low in manufacture cost, and stable and reliable in operation, achieves automatic cutting and line shearing, and greatly improves productivity and production quality.

Description

technical field [0001] The invention relates to a detection system, in particular to a sewing machine sewing material detection system. Background technique [0002] With the development of sewing machine automatic control technology, the automation of sewing machine clothing is getting higher and higher, among which automatic cutting technology has become more and more popular and mature, so that most types of sewing machines have automatic cutting function, but due to Due to the limitation of mechanical structure and control method, the automatic cutting technology of some sewing machines is not perfect and mature, and there are inherent loopholes, which may lead to incorrect thread trimming timing and wrong action during automatic cutting, resulting in production interruption or even material damage. Occurs from time to time, which greatly affects the efficiency of production. Contents of the invention [0003] The technical problem to be solved by the present inventio...

AI Technical Summary

Problems solved by technology

[0002] With the development of sewing machine automatic control technology, the automation of sewing machine clothing is getting higher and higher, among which automatic cutting technology has become more and more popular and mature, so that most types of sewing machines have automatic cutting function, but due to Due to the limitation of mechanical structure and control method, the automatic cutting technology of some sewing machines is not perfect and mature, and there are inherent loopholes, which may lead to incorrect thread trimming timing and wrong action during automatic cutting, resulting in production interruption or even material damage. Occurs from time to time, greatly affecting the efficiency of production

Images