| 摘要 |
PROBLEM TO BE SOLVED: To suppress the lowering of a sewing efficiency as much as possible while preventing an occurrence of a location error. SOLUTION: The sewing machine includes: a torque calculation section 40 which calculates the torques of a first motor 25 and a second motor 26; a torque storage section 44 storing torque for every stitch; a threshold torque storage section 44 which stores the threshold of an allowable torque; a display section 31; a drawing control section 40 which graphs out a relation between the number of stitches and the torques on the display section; an identification display control section 40 which provides identification display of a needle location with a torque value of the stored allowable torque threshold or more and a needle location with a torque value less than the threshold, in different display forms; an input section 32 which inputs a novel driving speed for adjusting the driving speed of a main spindle motor 6 at the needle location becoming the torque value of the allowable torque threshold or more; and a sewing data rewrite control section 40 which rewrites the driving speed of the main spindle motor corresponding to the needle location becoming the torque value of the allowable torque threshold or more out of sewing data 51 to the novel driving speed input from the input section. COPYRIGHT: (C)2011,JPO&INPIT
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