摘要

螺纹封盖头是对灌装完毕的容器进行封口的设备，主要用于对薄壁铝质盖进行螺纹封口的机械结构。本文力图所设计的封盖头结构在满足应用要求的前提下，在更多方面得以改善，使其可以在灌装生产线上发挥提高工作效率的作用，并达到降低成本、操作简单、为企业创造良好的经济效益的目的。
要实现螺纹封盖头对瓶子的封盖，将螺纹封盖头结构的动作过程分为三个部分展开：定位部分、 压紧部分、 旋合部分。首先要对瓶子进行准确的定位，需要设计定位元件，选择定位罩来定位；然后是要实现瓶盖能压紧在瓶子上，而且不容易脱落，设计顶端压紧组件来满足需求，选择压头结构来压紧瓶盖，传动部分选择凸轮推杆结构；最后在旋合滚压过程中要强迫瓶盖产生永久变形，产生与瓶口螺纹形状完全相同的贴合铝盖，还需要设计旋合滚压组件，选择辊杆螺旋辊结构。当旋合滚压完毕，整个封盖头上升复位完成整个加工流程。
本文设计的螺纹封盖头结构力求要实现对瓶盖准确定位、顶端压紧、旋合滚压的功能，具有结构简单、操作方便、提高饮品密封度、能提高生产效率等特点。
 
关键词：封盖头；顶端压紧；滚压旋合；CAD
 
 

ABSTRACT

Threaded capping head is the filling of the finished container for sealing equipment, mainly used for thin-walled aluminum cover metal thread sealing mechanical structure. In this paper, the design of the cap structure designed to meet the application requirements in the premise, in more ways to improve, so that it can play in the filling production line to improve the efficiency of the role, and to reduce costs, simple operation, to create a good business The purpose of economic efficiency.
    To achieve the capping of the cap on the bottle, the action of the thread cap structure is divided into three parts: the positioning part, the pressing part and the rotating part. First to the bottle to be accurately positioned, the need to design positioning components, select the positioning hood to locate; and then to achieve the bottle can be pressed on the bottle, and not easy to fall off, the design of the top compression components to meet the demand, Structure to compress the cap, the drive part of the selection of the cam putter structure; Finally, in the process of rolling rolling to force the cap to produce permanent deformation, resulting in the same shape with the bottle screw shape, Rolling the components and selecting the roller roll structure. When the rotation is finished rolling, the entire cover head to reset the completion of the entire processing process.
    In this paper, the design of the thread cap structure to achieve the precise positioning of the cap, the top of the compact, rolling rolling function, with a simple structure, easy to operate, improve the beverage sealing, can improve production efficiency and so on.
Key words: capping head；Top pressing；the rolling rotation；CAD