【摘要】 针对纸带压接机中压接装置的工作过程,在分析甩动辊运动过程的基础上,将甩动辊视为凸轮机构的从动件,定义其转动角度与从动件的行程等效,构建甩动辊动作电子凸轮曲线,从而基于电子凸轮控制机制,实现对甩动辊的控制。对该电子凸轮曲线的定义,特别是加速区和减速区的曲线形式,以及在加、减速区甩动辊与主动轴转角之间的关系进行了细致的讨论,得到了在加、减速区主动轴转动角度是甩动辊转动角度的2倍的结论;以此为指导,对伺服电机电子凸轮功能的参数设置进行讨论,并在纸带速度不同时均可离线设置。最后,讨论了实现上述控制的PLC程序的设计思想,并应用于实际系统,纸带压接装置的可靠性和稳定性取得了设想的效果。更多还原

【Abstract】 Aiming at the working process of the press crimping device for paper tape crimping machine,on the basis of analyzing the movement process of the swing roller,the swing roller is regarded as the follower of cam mechanism. Its rotation angle is defined as equivalent to the stroke of the follower,and the action electronic cam curve of the swing roller is constructed. Thus,the control of the swing roller can be realized based on the electronic cam control mechanism. The definition of the electronic cam curve,especially the curve forms in the acceleration and deceleration area,and the angle relationship between the swing roller and the driving shaft in the acceleration and deceleration area are discussed in detail. It is concluded that the rotation angle of the driving shaft is twice as much as the rotation angle of the swing roller in the acceleration and deceleration area. Taking this as a guide,the parameters setting of the electronic cam function of servo motor are discussed,and it can be set off-line at different speeds of paper tape. Finally,the design idea of the PLC program to realize the above control is discussed and applied to the actual system. The reliability and stability of the press crimping device have achieved the desired effect.更多还原