Rieter

Requirements

Index

High-tech spinning plants cannot be operated without management information systems based on online quality assurance and productivity control. High-performance machines such as cards, drawframes, etc., produce enormous amounts of intermediate products in a very short time; for example, in one minute a drawframe operating at a speed of 800 meters per minute produces sufficient sliver for 57 cops of yarn or 26 shirts. The volume of rejects is correspondingly high if anything goes wrong at any production unit. Any drifting off target therefore has to be prevented by any means from the very beginning. The slogan:
Faults should be prevented, not corrected is valid here more than ever.

However, this cannot be achieved merely by means of the time-honored “Statistical Quality Control Department”.
Over and above this, highly competent quality management and an overall control and information system with control devices at all the production units is required either for individual machines or group-wise. This has to start at the point where the first intermediate product is created, i.e. at the card, and has to continue as far as the winders. As sensors are to be installed on the machines in any case for quality assurance purposes, it makes sense to equip these control units additionally with data collecting and data evaluation systems to obtain a most important tool not only for quality management but also for mill management. Systems of this kind for controlling the process in terms of quality and economy are available from a number of machinery or instrument manufacturers, either for individual machines or groups of machines, including:

  • Rieter: UNIcontrol for blowroom and cards
  • Schlafhorst: Corolab for rotor spinning
  • Trütschler: KIT for cards, CIT for spinning preparation, SIT for blowroom and cards

Or for controlling and managing the entire spinning plant, e.g.:

  • Rieter: SPIDERweb
  • Zellweger: POLYLINK and others.