Sewing machine and computer-readable recording medium with recorded sewing machine control program

A sewing machine comprising:

• a main shaft that drives a needle bar that is configured to hold a sewing needle;
• a sewing machine motor that rotary-drives the main shaft;
• a detection device that detects an actual movement distance of a piece of work cloth;
• a target pitch storage device that stores a predetermined length as a target pitch, is the target pitch being a target value of stitch pitches of the piece of work cloth;
• an agreement degree calculation device that calculates an agreement degree between the target pitch and a stitch pitch in actual sewing that is to be determined based on the actual movement distance of the piece of work cloth, which is detected by the detection device;
• and
• a notification device that notifies of the agreement degree calculated by the agreement degree calculation device, wherein:
• the detection device detects the actual movement distance of the piece of work cloth for each of a predetermined small lapse of time during a stitch formation period of time in which a needle drop point is formed next to a predetermined needle drop point;
• and
• the agreement degree calculation device calculates the agreement degree between:
• the actual movement distance detected by the detection device and
• a target movement distance for each of the predetermined small lapse of time which is computed based on the target pitch and a revolving speed of the main shaft.

A sewing machine comprising:

• a main shaft that drives a needle bar that is configured to hold a sewing needle;
• a sewing machine motor that rotary-drives the main shaft;
• a detection device that detects an actual movement distance of a piece of work cloth;
• a target pitch storage device that stores a predetermined length as a target pitch, is the target pitch being a target value of stitch pitches of the piece of work cloth;
• an agreement degree calculation device that calculates an agreement degree between the target pitch and a stitch pitch in actual sewing that is to be determined based on the actual movement distance of the piece of work cloth, which is detected by the detection device;
• and
• a notification device that notifies of the agreement degree calculated by the agreement degree calculation device, wherein:
• the detection device detects the actual movement distance of the piece of work cloth for each stitch with which the sewing needle drops;
• and
• the agreement degree calculation device calculates the agreement degree between:
• the actual movement distance detected by the detection device, and
• the length of the target pitch.

A non-transitory computer-readable recording medium storing a sewing machine control program which controls a sewing machine, the program comprising:

• a detection instruction for detecting an actual movement distance of a piece of work cloth;
• a target pitch storage instruction for storing a predetermined length as a target pitch, which is a target value of stitch pitches of the piece of work cloth;
• an agreement degree calculation instruction for calculating an agreement degree between the target pitch and a stitch pitch in actual sewing that is to be determined based on the actual movement distance of the piece of work cloth which is detected by the detection instruction;
• and
• a notification instruction for notifying of the agreement degree calculated by the agreement degree calculation instruction, wherein:
• the detection instruction detects the actual movement distance of the piece of work cloth for each of a predetermined small lapse of time during a stitch formation period of time in which a needle drop point is formed next to a predetermined needle drop point;
• and
• the agreement degree calculation instruction calculates the agreement degree between:
• an accumulated value obtained by accumulating the actual movement distance of the piece of work cloth for each of the predetermined small lapse of time detected by the detection instruction during a predetermined lapse of time in the stitch formation period of time, and
• an accumulated value obtained by accumulating a target movement distance of the piece of work cloth for each of the predetermined small lapse of time which is computed based on the target pitch and a revolving speed of a main shaft of a motor of the sewing machine during the predetermined lapse of time in the stitch formation period of time.

A non-transitory computer-readable recording medium storing a sewing machine control program which controls a sewing machine, the program comprising:

• a detection instruction for detecting an actual movement distance of a piece of work cloth;
• a target pitch storage instruction for storing a predetermined length as a target pitch, which is a target value of stitch pitches of the piece of work cloth;
• an agreement degree calculation instruction for calculating an agreement degree between the target pitch and a stitch pitch in actual sewing that is to be determined based on the actual movement distance of the piece of work cloth which is detected by the detection instruction;
• and
• a notification instruction for notifying of the agreement degree calculated by the agreement degree calculation instruction, wherein:
• the detection instruction detects the actual movement distance of the piece of work cloth for each of a predetermined small lapse of time during a stitch formation period of time in which a needle drop point is formed next to a predetermined needle drop point;
• and
• the agreement degree calculation instruction calculates the agreement degree between:
• the actual movement distance detected by the detection instruction, and
• a target movement distance for each of the predetermined small lapse of time which is computed based on the target pitch and a revolving speed of a main shaft of a motor of the sewing machine.

A non-transitory computer-readable recording medium storing a sewing machine control program which controls a sewing machine, the program comprising:

• a detection instruction for detecting an actual movement distance of a piece of work cloth;
• a target pitch storage instruction for storing a predetermined length as a target pitch, which is a target value of stitch pitches of the piece of work cloth;
• an agreement degree calculation instruction for calculating an agreement degree between the target pitch and a stitch pitch in actual sewing that is to be determined based on the actual movement distance of the piece of work cloth which is detected by the detection instruction;
• and
• a notification instruction for notifying of the agreement degree calculated by the agreement degree calculation instruction, wherein:
• the detection instruction detects the actual movement distance of the piece of work cloth for each stitch with which the sewing needle drops;
• and
• the agreement degree calculation instruction calculates the agreement degree between:
• the actual movement distance detected by the detection instruction, and
• the length of the target pitch.