ROTARY EMBOSSING

摘要

An embossing apparatus comprises pairs of rotary embossing drums (230) driven by respective servo motors (260). The drums have an embossing formation. A conveyor feeds blanks to the embossing drums (230). A control senses the position and speed of the blank and the position and speed of the drum and applies a correction to the rotational position of the drum such that the blank will engage the embossing formation in the correct position as it travels past the formation.