Sewing machine and computer-readable medium storing sewing machine control program

Abstract

A sewing machine includes a sewing device, an imaging device, a determination device, a sewing condition storage device, a reading device, and a control device. The sewing device includes a needle bar and a sewing machine motor. The imaging device captures an image of a work cloth on which a marker is disposed to identify information corresponding to actual sewing conditions. The determination device determines an appearance feature of the work cloth based on the image obtained by the imaging device. The sewing condition storage device stores the appearance feature and sewing condition information corresponding to the sewing conditions that are correlated with each other. The reading device reads the sewing condition information corresponding to the appearance feature from the sewing condition storage device. The control device identifies the actual sewing conditions based on the sewing condition information read out by the reading device, and controls the sewing device.

1 . A sewing machine that performs sewing on a work cloth, the sewing machine comprising:
 a sewing device that includes:
 a needle bar to which a sewing needle is to be attached; and 
 a sewing machine motor that drives a needle bar mechanism via a drive shaft, the needle bar mechanism being configured to move the needle bar in an up-and-down direction; 
   an imaging device that captures an image of the work cloth on which a marker is disposed to identify information corresponding to actual sewing conditions, the actual sewing conditions being sewing conditions to be used in actual sewing;   a determination device that determines an appearance feature of the work cloth on which the marker is disposed, based on the image obtained by the imaging device;   a sewing condition storage device that stores the appearance feature and sewing condition information corresponding to the sewing conditions that are correlated with each other;   a reading device that reads out the sewing condition information corresponding to the appearance feature determined by the determination device from the sewing condition storage device; and   a control device that identifies the actual sewing conditions based on the sewing condition information read by the reading device, and controls the sewing device so as to perform sewing.   
   
   
       2 . The sewing machine according to  claim 1 , wherein the determination device determines at least one of a shape of the marker, a color of the marker, and a density of the marker, as the appearance feature. 
   
   
       3 . The sewing machine according to  claim 1 , further comprising:
 a needle bar swinging motor that drives a needle bar swinging mechanism configured to swing the needle bar in a right-and-left direction with respect to a cloth feeding direction; and   a feed adjustment motor that adjusts a feed amount by a cloth feed mechanism configured to feed the work cloth placed on a sewing machine bed,   wherein:
 the sewing condition information includes at least one of sewing speed data about a rotation speed of the drive shaft, swing amount data about a movement amount in the right-and-left direction of the sewing needle by the needle bar swinging mechanism, and feed amount data about the feed amount by the cloth feed mechanism, and 
 the control device controls at least one of the sewing machine motor, the needle bar swinging motor, and the feed adjustment motor. 
   
   
   
       4 . The sewing machine according to  claim 1 , wherein the marker is a pin that has a head portion and a needle portion. 
   
   
       5 . The sewing machine according to  claim 1 , wherein the marker is a sticker that has an adhesive layer on a surface. 
   
   
       6 . A computer-readable medium storing a computer-executable sewing machine control program for a sewing machine to perform sewing on a work cloth, the sewing machine comprising a sewing device that includes a needle bar to which a sewing needle is to be attached and a sewing machine motor that drives via a drive shaft a needle bar mechanism configured to move the needle bar in an up-and-down direction, and the sewing machine control program comprising instructions for:
 determining an appearance feature of the work cloth on which a marker is disposed, based on an image obtained by image capturing of the work cloth on which the marker is disposed to identify information corresponding to actual sewing conditions, the actual sewing conditions being sewing conditions to be used in actual sewing;   identifying sewing condition information that corresponds to the determined appearance feature based on a predetermined correlation between the appearance feature and the sewing condition information corresponding to the sewing conditions; and   controlling the sewing device so as to perform sewing, based on the actual sewing conditions indicated by the identified sewing condition information.   
   
   
       7 . The computer-readable medium according to  claim 6 , wherein determining an appearance feature of the work cloth includes determining at least one of a shape of the marker, a color of the marker, and a density of the marker as the appearance feature. 
   
   
       8 . The computer-readable medium according to  claim 6 , wherein:
 the sewing machine further comprises:
 a needle bar swinging motor that drives a needle bar swinging mechanism configured to swing the needle bar in a right-and-left direction with respect to a cloth feeding direction; and 
 a feed adjustment motor that adjusts a feed amount by a cloth feed mechanism configured to feed the work cloth placed on a sewing machine bed; 
   the sewing condition information includes at least one of sewing speed data about a rotation speed of the drive shaft, swing amount data about a movement amount in the right-and-left direction of the sewing needle by the needle bar swinging mechanism, and feed amount data about the feed amount by the cloth feed mechanism; and   controlling the sewing device includes controlling at least one of the sewing machine motor, the needle bar swinging motor, and the feed adjustment motor.