| 摘要 |
<p>PURPOSE: A device for breaking nicks connecting two edges of cutting line is provided to allow a great flexibility of use and an adaptation to cardboard blanks of sizes likely to vary in significant proportions, while facilitating the adjustment of the position of the tools, and increasing the productivity. CONSTITUTION: A device comprises a frame carrying unit for conveying blanks according to a substantially plane path and two parallel shafts(10,11), which are mounted so as to be rotatable on both sides of the plane of the path and including tool supports(19a,19b,20a,20b) for inducing a shearing between the adjacent edges of a cutting line during their displacement, in order to break nicks on the cutting line. Each parallel shaft comprises at least one tool support for connecting the shearing tools to the respective shafts and a unit for angularly and longitudinally positioning these tool supports on the respective shafts.</p> |
