首秦公司双边剪剪切毛刺缺陷原因分析及改进措施

Analysis and Countermeasures of Cutting Burr Defect Caused by Double-Sided Shear in Shouqin Metal Materials Co., Ltd.

分析了首秦公司双边剪剪切质量缺陷比例最大的剪切毛刺缺陷产生的原因。结果表明，剪刃与钢板不平行以及夹送辊将钢板送偏等是产生剪切毛刺缺陷的主要原因。通过采取调整剪刃头尾间隙和标定夹送辊标高等措施，使发生剪切毛刺缺陷的比例由51．75％降至27．84％，剪切毛刺缺陷得到明显改善。

The cutting burr defect which occupied the main part of quality defects caused by doublesided shear in Shouqin Metal Materials Co., Ltd. was analyzed. The results indicated that the primary causes were the non-parallel of the shear to the plate, and the offset of the plate when delivered by the pinch rolls. By adjusting the knife gap and calibrating the height of pinch rolls, the cutting burr defect was improved and the proportion fell off from 51.75% to 27.84%.