| 摘要 |
A spin flanger, for flanging a necked-in can body (A) has an axially and rotationally movable head (20) provided with a freely-movable pilot for entering a pre-formed neck to align can body (A) with the spin head (20). Spin- forming rollers, mounted on the periphery of the head, are rotatable on axes normal to the head rotation axis and each has a rim and body portion with meeting surfaces making an included angle of e.g. 120 DEG , the rim in use initially flares the end edge of the can body and the body portion (which ex- tends substantially normally to the head rotation axis) completes the spin- formed flange. The head is cammed towards the can body and spin forming is accomplished while the head is moved by the cam at constant velocity. <IMAGE> |
