The utility model discloses a line slitting knife driving mechanism, the beam comprises the driving mechanism comprises a crank connecting rod a, a, B, C, crank shaft crank and connecting rod B, which is a crank a connected to the power supply, and the other end of the connecting rod is hinged with one end of the a, a and the other end of the connecting rod the B B and C pin, crank crank shaft is connected between the connecting shaft and crank, B key, C is provided with a locking mechanism of the crank, crank shaft and locking mechanism connected by C, C and B connecting rod crank is hinged with the end of the connecting rod of B beam stiffness and installation of a plurality of slitting knife. The utility model adopts a crank connecting rod structure, multi drive, large force, the member stress is reasonable, smooth cut section, the book without burr; in addition, the slitting knife driving mechanism, because the length of the connecting rod is adjustable, the initial position and installation angle of crank is adjustable, and can be adjusted conveniently from the longitudinal knife the initial position and the final position, the cutting action optimization.
【技术实现步骤摘要】
本技术涉及巻筒纸柔版印刷铁丝装订联动线,特别涉及一种联动线纵切刀驱动机构。
技术介绍
柔版印刷联动线经过折页、平背后,即是整本横切和纵切工序,切为预定规格的薄 本。其中纵切方向是沿着联动线的流水线长度方向,横切方向是沿着流水线的宽度方向。 在纵切工序中,纵向切薄本是靠纵切刀(上刀)、下刀配合动作来完成的,下刀水 平固定在机架台面上,数把纵切刀安装于一根设置在机架台面上方的主轴上,主轴断面为 圆形,且纵切刀倾斜一定角度,主轴在驱动机构的作用下作相对于水平面倾斜一定角度的 上下直线运动,纵切刀的刀口由下至上逐渐与下刀的刀口闭合完成纵切工序。现有技术中 纵切刀驱动机构是采用偏心轴结构驱动,偏心轴转动输出动力带动横切刀上下移动,由于 横切刀切书过程需要较大的力,这种结构的缺点是偏心轴由于自身刚性不足,在出力较大 的基础上容易产生弯曲变形,主轴也容易发生变形,从而容易使纵切刀发生偏移,切书断面 有毛边,不够光洁,影响切刀效果。
技术实现思路
本技术针对上述现有技术的不足,提供了一种不易变形,可减少纵切刀损坏、切书效果好的纵切刀驱动机构。 本技术的技术方案是这样实现的 —种联 ...
【技术保护点】
一种联动线纵切刀驱动机构,其特征是:该机构包括曲柄a(21)、连杆a(22)、曲柄b(23)、轴(24)、曲柄c(25)及连杆b(26),其中,曲柄a(21)的一端连接驱动其自身转动的动力源,另一端与连杆a(22)的一端铰接,连杆a(22)的另一端与曲柄b(23)铰接,曲柄b(23)与曲柄c(25)之间通过轴(24)相连,曲柄b(23)与轴(24)键连接,在曲柄c(25)上设有抱紧机构,曲柄c(25)与轴(24)通过抱紧机构相连,曲柄c(25)与连杆b(26)铰接,连杆b(26)与安装有多把纵切刀的大刚度横梁(8)的端部铰接。
【技术特征摘要】
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