粗纱工序的工艺流程

粗纱工序的工艺流程

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熟条直接纺成细纱约需要150 倍以上的牵伸，而目前环锭细纱机的牵伸能力最大是50 倍，所以需要粗纱机来承担纺纱中的一部分牵伸负担。粗纱作为细纱工序前的一道工序，其目的是将熟条制成不同支数的粗纱，这些粗纱具有不同捻度，为后面的细纱工序做准备。其具体步骤为：

1.牵伸：将熟条抽长拉细5～10 倍，让里面的纤维进一步伸直平行。

2.加捻：在经过牵伸步骤后，熟条的须条截面纤维根数少，伸直平行度好，故强力较低，所以需要提高粗纱强力，这就得给粗纱加上必要的捻度，来防止卷绕和退绕时的意外伸长。

3.卷绕成形：把经过加捻后的粗纱缠绕在筒管上，加工成一定形状和大小的卷装，来方便储存、搬运，同时适应细纱机上的喂入。

DW7030H 数字式粗纱机是一款使用S / Z捻扭转的粗纱机，它使用的是国产品牌台达的PLC，驱动器及伺服电机，易于学习和操作。机器的机架为铝型材，可以有效地防腐防潮，而且材料环保科学，使用的寿命长，同时具有四只转轮地脚，可自由移动，省时省力。仪器内部牵伸，锭杆，锭翼，模块化独立驱动，互不影响。而且多功能设计，清理，设置和维修都很简单。

 

 

 

 

 

 

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