HIGH SPEED NECKING CONFIGURATION

摘要

A horizontal can necking machine assembly (10) includes a plural of main turrets (26) and a plural of transfer starwheels (22). Each main turret includes a main turret shaft (38), a main gear (46) mounted on the main turret shaft, a pusher assembly (30), and a die (34) capable of necking a can body (72) upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft (54) and a transfer gear (62) mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 38.1 mm (1.5 inches).