1　划印器的改装把手拉式划印器改装成双向折叠划印器。首先将现使用的三编组条播机中后台牵引三角梁缩短一半 ,直接连到联结器中梁上 ,从而使中后台变成中前台 ;把左右两边台的牵引梁各加长 1 m,并后退变成后挂结 ;采用在中梁上平面设支撑、增吊筋的方式 ,悬吊联结器的左右边 1 scriber refit Hand pull scriber converted into two-way folding scriber. Firstly, shorten the trailing triangular beam in the three knitting machine currently used, and connect it directly to the middle beam of the coupler, so that the mid-backstage becomes the foreground; and lengthen the towing beams on the left and right sides by 1 m each and degenerate Into a knot after; Adopted in the beam on the plane set up support, by the way tendons, suspension coupling left and right