Abstract: In seaming various shapes of cans, there is no need of replacement of a profiling cam or experience in techniques, thus enabling to reduce the number of components to be replaced and simplify a replacement work remarkably. Below a rotary driving ring (10), a holding ring (4) is mounted in such a manner that it can move horizontally and rotate integrally. Inside the holding ring (4), a curl roller (2) and a tightening roller (3) are mounted opposite to each other. The holding ring (4) is so mounted on a guide ring (6) as to be turned via a pressurization roller (5). The guide ring (6) is drive-controlled in the X-axis direction and Y-axis direction by an X-axis table (7) and a Y-axis table (8) driven by servo motors (14, 16) according to the shape of a can.

Abstract: In seaming various shapes of cans, there is no need of replacement of a profiling cam or experience in techniques, thus enabling to reduce the number of components to be replaced and simplify a replacement work remarkably. Below a rotary driving ring (10), a holding ring (4) is mounted in such a manner that it can move horizontally and rotate integrally. Inside the holding ring (4), a curl roller (2) and a tightening roller (3) are mounted opposite to each other. The holding ring (4) is so mounted on a guide ring (6) as to be turned via a pressurization roller (5). The guide ring (6) is drive-controlled in the X-axis direction and Y-axis direction by an X-axis table (7) and a Y-axis table (8) driven by servo motors (14, 16) according to the shape of a can.