Typically, the web runs down into the pulper when not reeling.REEL SPOOL: A metal roll onto which the web is wound during reeling operations.The HMI contains a Graphic User Interface (GUI) composed of multiple screens. A roll of paper tightly wrapped around a reel spool.
Paper, first invented in China around the 1st or 2nd century A.
D., is now so ubiquitous that it has achieved near-invisibility in our modern world.
REEL: A machine that reels (winds, wraps) paper onto reel spools to create parent rolls which are used later in the manufacturing process.
A reel is typically used in high speed conditions, for instance where the paper comes from a paper machine or coater.
SKEW: "Skew" in the reeling process refers to uneven loading or position of one side of the reel versus the other side.
SLAB: Waste paper which is torn from the roll, for instance after a web break or during threading.
PERIPHERAL FORCE: Another term for torque or circular force. One of the three parameters controlling roll structure.
PLC: Programmable Logic Controller; a processor which can be programmed to read the status of sensors and to energize actuators to obtain a desired control action.
As to its structure, a parent roll built on a reel spool can be divided into four concentric sections as per the graphic.
The innermost two layer sections are the most important ones for the final result.