Chimney Swaging Machine

The pair of hardened steel double swaging rollers is carried on a pair of vertically projecting, gear connected shafts running in pairs of sealed angular contact ball bearings carried by the substantial bearing blocks. These blocks are carried on robust horizontal rails by linear guide bearings on each side to allow both positioning by handwheel with digital diameter indicator and opening and closing of the swaging rollers by hydraulic cylinder via the attached electrohydraulic power pack. This movement is controlled by hydraulic pressure and time, to provide completion of the swaging in an optimised number of revolutions for each size of cylinder. The 0.75kw geared electric motor is shaft mounted to one of the swaging roller shafts to drive the rollers at a forming speed of 15m/m.

The cylinders are supported on three vertical axis bearing mounted flanged rollers which contain and support the cylinder at the commencement of swaging. The position of these rollers is adjusted by a multi scroll rotating disc in unison with the handwheel adjustment of the forming roller position. A carriage running on vertical linear guides carries a bearing mounted floating disc fabrication which descends by pneumatic cylinder to initially datum the cylinder against the support rollers. The low bed design helps manual loading of the cylinder on end between the double swaging rolls.

The equipment is housed within a steel plate fabrication which carries a safety light curtain across the open front for insertion and removal of the cylinders. An electrical control panel mounted to the side of the fabrication houses the fully programmed PLC, safety relay and associated electrical components, and carries the HMI and control push buttons in its upper surface. This provides the automated swaging sequence, the manual actuation of individual actions if required, and error messages to simplify fault finding.