The utility model discloses a label bottom paper rewinding mechanism, in particular to a label paper rewinding mechanism, which can not rotate when the label paper roll is in an abnormal situation, and will not be damaged by the abrasion of the plastic. The rewinding mechanism opens the self-protection function, so as to avoid the abnormal mechanism of the paper roll during the printing process. The first step in the middle is provided with a convex ring, and the first step in the middle of the rotating shaft is provided with an interference sleeve Spring: the two-stage steps on both sides of the rotating shaft are equipped with supporting parts. One side of the supporting parts is the big end, the other side is the small end, and the big ends of the supporting parts on both sides are opposite. The big end of the supporting parts is butted on the shaft shoulder at the junction of the two-stage steps and the first stage step. The three-stage steps on the rotating shaft far away from the one end of the spring are sleeved with sleeve, and the sleeve is provided with abnormal holes. The three-stage steps on both ends are A special-shaped shaft is provided with a threaded hole at the center of both ends of the shaft, and a pan head screw is connected with the internal thread of the threaded hole; a gear is sleeved on a three-stage step ladder on the shaft close to one end of the spring.
【技术实现步骤摘要】
一种标签底纸回卷机构
本技术涉及一种打印机部件,具体是一种标签底纸回卷机构。
技术介绍
打印机的种类很多,按打印元件对纸是否有击打动作,分击打式打印机与非击打式打印机,无论是哪种打印机,在内部均设置有回卷装置,称为标签回卷器,标签回卷器又名标签自动回卷器,是新一代的工业级标签卷处理装置,回绕器结构简单,安全可靠,具有自动调节回卷速度及自动打滑功能。但是目前现有的标签纸回卷机构均不带有保护功能,打印过程中纸卷出现异常,例如卡顿和夹持时,会引起的纸卷被拉断、齿轮卡死甚至会发生电机烧毁等问题,故障率较高。
技术实现思路
基于上述
技术介绍
中所提到的现有技术中的不足之处,为此本技术提供了一种标签底纸回卷机构。本技术通过采用如下技术方案克服以上技术问题,具体为:一种标签底纸回卷机构,包括卷纸簧丝、壳体、齿轮和转轴,所述转轴为三级阶梯轴,分别为一级阶梯、二级阶梯和三级阶梯,转轴两端部分为三级阶梯,位于中部的一级阶梯上具有凸环,转轴中部的一级阶梯上过盈套接有弹簧;所述转轴两侧的二级阶梯上均间隙装配 ...
【技术保护点】
1.一种标签底纸回卷机构,包括卷纸簧丝(1)、壳体(2)、齿轮(6)和转轴(10),其特征在于,所述转轴(10)为三级阶梯轴,分别为一级阶梯、二级阶梯和三级阶梯,转轴(10)两端部分为三级阶梯,位于中部的一级阶梯上具有凸环,转轴(10)中部的一级阶梯上过盈套接有弹簧(11);所述转轴(10)两侧的二级阶梯上均间隙装配有支撑件(9),支撑件(9)一侧为大端,另一侧为小端,两侧的支撑件(9)大端相对,支撑件(9)的大端抵接在二级阶梯和一级阶梯交接处的轴肩上;/n所述转轴(10)上远离弹簧(11)一端的三级阶梯上套接套筒(8),套筒(8)上开设有异型孔,两端的三级阶梯均为异型轴, ...
【技术特征摘要】
1.一种标签底纸回卷机构,包括卷纸簧丝(1)、壳体(2)、齿轮(6)和转轴(10),其特征在于,所述转轴(10)为三级阶梯轴,分别为一级阶梯、二级阶梯和三级阶梯,转轴(10)两端部分为三级阶梯,位于中部的一级阶梯上具有凸环,转轴(10)中部的一级阶梯上过盈套接有弹簧(11);所述转轴(10)两侧的二级阶梯上均间隙装配有支撑件(9),支撑件(9)一侧为大端,另一侧为小端,两侧的支撑件(9)大端相对,支撑件(9)的大端抵接在二级阶梯和一级阶梯交接处的轴肩上;
所述转轴(10)上远离弹簧(11)一端的三级阶梯上套接套筒(8),套筒(8)上开设有异型孔,两端的三级阶梯均为异型轴,且转轴(10)的两端中心处开设有螺纹孔,螺纹孔内螺纹连接有盘头螺丝(5);所述转轴(10)上靠近弹簧(11)一端的三级阶梯上套接齿轮(6),齿轮(6)中心也开设有异型孔;所述转轴(10)外部设置有壳体(2),壳体(2)沿轴线分为两半,分别为公壳和母壳,壳体(2)内腔上一侧具有台阶,壳体(2)内腔两端设置有凹槽,弹簧(11)两端抵接壳体(2)内腔上的台阶,且两端的支撑件(9)嵌合在壳...
【专利技术属性】
技术研发人员:张龙,叶长根,胡虎雄,朱琪,陈小芳,文俊雄,
申请(专利权)人:碧彩上海衡器技术有限公司,
类型:新型
国别省市:上海;31
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