US 12,064,805 B2
Method and device for roll seam welding container shells
Carsten Krocker, Bergdietikon (CH); and Peter Taiana, Bergdietikon (CH)
Assigned to SOUDRONIC AG, Bergdietikon (CH)
Appl. No. 16/607,727
Filed by Soudronic AG, Bergdietikon (CH)
PCT Filed Jan. 15, 2018, PCT No. PCT/CH2018/000002
§ 371(c)(1), (2) Date Oct. 24, 2019,
PCT Pub. No. WO2018/195674, PCT Pub. Date Nov. 1, 2018.
Claims priority of application No. 0578/17 (CH), filed on Apr. 28, 2017.
Prior Publication US 2020/0055108 A1, Feb. 20, 2020
Int. Cl. B23K 11/06 (2006.01); B21D 51/26 (2006.01); B23K 11/087 (2006.01); B23K 11/25 (2006.01); B23K 11/36 (2006.01); B23K 31/02 (2006.01)
CPC B21D 51/2676 (2013.01) [B23K 11/06 (2013.01); B23K 11/062 (2013.01); B23K 11/063 (2013.01); B23K 11/0876 (2013.01); B23K 11/255 (2013.01); B23K 11/36 (2013.01); B23K 31/027 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for producing container shells, wherein rounded shells are transported from a transport installation to a roll seam welding machine having welding rollers and the shells pass through a calibration tool with a plurality of calibration rollers arranged in a wreath-like array before the welding rollers of the roll seam welding machine, wherein a sensor measures the force exerted by the respective shell on the calibration rollers of the calibration tool and the measured force is evaluated as information for the overlapping width of the shell, characterized in that the calibration tool comprises two parts disposed respectively on two opposite sides of the calibration tool and a deformable yoke connecting the two parts together, one of the two parts supporting one set of the calibration rollers fixed in position on one of the two parts and not movable in or out independently of the one of the two parts, and the other of the two parts supporting another set of the calibration rollers fixed in position on the other of the two parts and not movable in or out independently of the other of the two parts, such that forces exerted by a container shell on the calibration rollers are transmitted through the rollers and two parts to deform the yoke connecting the two parts together, and wherein the sensor detects the deformation of the yoke as a measure of the force exerted by the respective container shell on the two parts and sets of calibration rollers.