Patent ID: 6062751
Filing Date: 2000-05-16
Classification: B26D,B31B,B41F

Abstract:
A belt-driven machine for operating on a plurality of blanks, each blank defining a leading edge, comprising:a first machine section for receiving each blank from a feed mechanism in a machine direction and performing a first operation on each blank;a first synchronous belt driving the first machine section for synchronizing the performance of the first operation with the position of the leading edge of each blank;a rotating first upper roll and an rotating first lower roll defining a first nip for transporting each blank through the first machine section and performing the first operation on each blank,a first adjustment mechanism for adjusting the first nip to accommodate blanks of varying thickness, anda first automatic take-up for automatically maintaining tension in the first synchronous belt in response to adjustment of the first nip;a second machine section for receiving each blank from the first machine section and performing a second operation on each blank;a second synchronous belt for driving the second machine section; anda separable coupling for selectively transmitting rotational power from the first machine section to the second machine section and for synchronizing the performance of the second operation with the position of the leading edge of each blank.