Based on theoretical analyses and experiments, main reasons have been discovered that cause excessive impact load on the wrapper roll of down coiler.

在理论分析和试验研究的基础上，找出地下卷取机助卷辊冲击负荷过大的主要原因。

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For leading the wrapper (21) to the roll being packed, there is arranged at least one creasing element (9).

为了将包装材料(21)引领至正被包装的幅卷，该装置中设置有至少一个折皱构件(9)。

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For leading the wrapper (21) to the roll being packed, there is arranged at least one creasing element (9).

为了将包装材料(21)引领至正被包装的幅卷，该装置中设置有至少一个折皱构件(9)。

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