AGGREGATE FOR MAKING ARTICLES OF SHEET METAL Russian patent published in 2002 - IPC

FIELD: plastic metal working, namely manufacture of articles of sheet metals. SUBSTANCE: aggregate includes framework; detachable frame having two housings with lengthwise grooves in which jaws are mounted; said jaws have lids, windows and openings. Both housings of frame may be spaced by different distance relative to horizontal axis of aggregate. Assemblies of vertical and horizontal shafts with tools are mounted in windows of jaws. Shaping, sizing or bending rolls and also disc-type cutters and separation washers may be used as tools. Horizontal shafts are driven to rotation by means of separate or group drive units. Inside aggregate at both sides relative to upper and lower shafts there is apparatus for changing rolls. Said apparatus includes guiding braces mounted in lids and jaws by means of wedges, traverse bars secured to guiding braces and having screws and supporting prisms for lower and upper shafts mounted on traverse bars by means of nuts. At cutting metal, each next pair of disc cutters is shifted relative to previous one. EFFECT: increased rigidity of aggregate, reduced time period and enhanced techniques of roll changing, lowered mass, size and cost of equipment, enlarged manufacturing possibilities, improved quality of articles. 9 cl, 11 dwg