Automative Unwinding of Waste Paper from Reel Spools

Pavel Lehocky,Stefan Medvecky,Slavomir Hrcek,Alena Hrcekova,Jan Podhorsky,B Surmova,Robert Kohar

doi:10.26552/com.c.2007.1.60-66

Abstract

Paper industry deals with procedures for conceptual and final design of a machine intended for unwinding paper that remains on reels during a certain phase of paper producing. Design procedure of the machine is a subject of this paper. The machine was designed as a mechatronic unit consisting of a mechanical part, an electric part and a pneumatic part. 3D CAD/CAM system Pro/ENGINEER was used for the design of the mechanical part. For the automation processes the PLC unit connected with the frequency changing unit and asynchronous drive were used as a central drive for the unwinding machine.

Highlights

In order to make production of paper faster, more effective and environmental friendlier, the paperwork in Ružomberok defined a task, the solution of which would approximate its production technology chain toward aforementioned goals
Paper industry deals with procedures for conceptual and final design of a machine intended for unwinding paper that remains on reels during a certain phase of paper producing
The machine was designed as a mechatronic unit consisting of a mechanical part, an electric part and a pneumatic part. 3D CAD/CAM system Pro/ENGINEER was used for the design of the mechanical part

Summary

Introduction

In order to make production of paper faster, more effective and environmental friendlier, the paperwork in Ružomberok defined a task, the solution of which would approximate its production technology chain toward aforementioned goals. Manually performed removal of wound-up rest of web paper that remains on a reel spool after a web unwinding – during a paper production would be automated. The paper remains wound-up on a reel spool due to a used technology of production and due to production process tolerances. With the use of knife, an operator had to cut the remaining paper off a reel and store the removed paper in a container from where it went for further processing. The objective of the defined task was to minimise the manual operation of the removal of the rest of paper from a reel and speed up the process. The overall objective of the task was to design and to manufacture a fully automatic machine that would be able to unwind remained paper from a reel and would direct it for a recycling process. The device can be divided into three basic parts: – a mechanical part consisting of a machine frame, movable mechanisms, a machine covering, – an electric part consisting of electric drive and power supply as a power part and a control part with PLC computer and sensors, – a pneumatic part with pneumatic cylinders, valves and devices for compressed air parameters control

Mechanical part of the machine

Pneumatic part of machine

Conclusion