Sewing machine and sewing method

Abstract

The present invention provides a sewing machine and a sewing method capable of suppressing the production of defective objects to be sewn and the occurrence of abnormal operation of the sewing machine. The sewing machine includes: a holding member that can move the object to be sewn in a predetermined plane; an actuator that moves the holding member; an imaging device that can take a picture of the object to be sewn; and a sewing data acquisition unit that acquires the first 1 sewing data and second sewing data; an initial position data acquisition unit that acquires initial position data; a current position data acquisition unit that acquires current position data based on image data of the object to be sewn captured by an imaging device; an abnormality detection unit that detects abnormality of the sewing object based on the initial position data and the current position data; a control unit that outputs the detection result of the abnormality detection unit when abnormality is detected, and based on the abnormality detection unit when no abnormality is detected The first sewing data and the second sewing data output a control signal for controlling the actuator.

Description

technical field [0001] The present invention relates to a sewing machine and a sewing method. Background technique [0002] In order to improve the designability of the object to be sewn, stitches may be formed in the object to be sewn. Patent Document 1 and Patent Document 2 disclose techniques for forming stitches in a skin material used in a vehicle seat. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2013-162957 [0004] Patent Document 2: Japanese Patent Laid-Open No. 2016-141297 [0005] The skin material used for vehicle seats has thickness and elasticity. When a stitch is formed on a sewing object having a thickness and elasticity, the sewing object may shrink and the surface of the sewing object may be displaced. For example, when the second stitch is formed after the first stitch is formed based on the sewing data, if the surface of the object to be sewn is displaced due to the formation of the first stitch, it may be difficult to form the second sti...

AI Technical Summary

Problems solved by technology

For example, if the second stitch is formed after the first stitch is formed based on the sewing data, if the surface of the object to be sewn is displaced due to the formation of the first stitch, it may be difficult to form the second stitch on the seam. The target position of the control object

Even if it is difficult to form a stitch at the target position of the sewing object, if the sewing process is continued, an unqualified sewing object may be produced, or the sewing machine may operate abnormally

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