Dry End Roll Handling Systems

How Dry End Roll Handling Systems work:

The system begins by lifting a full roll set, and shaft from the kitchen rails of the tissue machine engages the shaft end, deflates the shaft, and pulls the shaft from the roll set cores. The roll set is subsequently lowered and transferred from the machine area into the roll handling system. Here, the system introduces new cardboard cores into the machine, raises them, inserts the shaft into the core, inflates the shaft, and lowers the inflated shaft back down onto the kitchen rails for a new roll set. The parent rolls are either conveyed forward, inspected for separation, or pass through the roll breaking sequence before continuing onward.

Each parent roll is individually weighed and automatically labeled on the bilge. After that, the rolls convey through a film wrapper where they can either pass straight through or be film-wrapped for shipping protection. Next, rolls are sent into a lowerator (if multiple floors) or directly into an upender machine that changes the roll position from horizontal to vertical. At this juncture, rolls are accumulated and conveyed to pick-up stations using either a clamp truck or Automatic Guided Vehicle. All roll data is tracked throughout the system and transferred to third-party networks as necessary.

​The system receives cores from internal core racks and removable core bins and stores them internally in the core handling system while tracking dimensions and quantity in the PLC/HMI. Finally, cores are individually picked, conveyed, and delivered to the tissue machine to be mated back with the shaft. Rejected cores are transferred either to an internal core rack or to a position where operators can remove them safely.