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Autocoro with new, patented rotor cleaning

Published: March 29, 2023
Author: DIGITAL MEDIA EXECUTIVE

To prepare spinning mills for the circular economy of the future, Saurer thinks one  step ahead in all its developments and upgrades. A high degree of contamination reduced production speeds and a lot of personnel intervention are all common  consequences of using recycled short-staple fibres in a rotor spinning mill. With their  new optimised, patented cleaning and operator guidance with LED light signals, the  new doffing cleaning units (DCUs) on the Autocoro 10 help our customers achieve  higher yarn quality and personnel efficiency.

Fully automatic rotor spinning essentially consists of four key processes: spinning and  winding, automatic piecing and automatic doffing of yarn packages. When it  comes to the Autocoro, the first three processes have been integrated into each  individual spinning position for more than 10 years through individual drive  technology, resulting in high productivity.  

When doffing a package, rotor cleaning is carried out simultaneously by the doffing  cleaning units (DCUs), which travel from spinning position to spinning position. With  the Autocoro, you can install up to eight DCUs. The machine can be configured  differently depending on the machine length, package size, yarn count and raw  material.  

New patented rotor cleaning improves yarns  

The several DCUs work like a well-coordinated team on the Autocoro 10. At the  same time, each DCU can be precisely adjusted to the quality requirements of its  lots and work areas on the Autocoro 10.  

The most important task of the DCUs in the context of yarn quality assurance is to  clean the rotors, both pneumatically and mechanically. In the new Autocoro 10, this  is now even more efficient as a result of an innovative, patented technology. The  cleaning processes are digitally controlled using state-of-the-art linear motor  technology. A new movement mode for the cleaning scraper has been integrated,  and the positioning of the scraper in the rotor groove is more precise and  significantly more efficient thanks to an additional circuit.  

This new cleaning technology loosens and removes even the most stubborn dirt and  sticky residue in the rotor. The cleaning time of the rotors can now be individually  adjusted on the new DCUs. All this paves the way for impeccably clean rotors,  leading to a more reproducible yarn quality regardless of the fibre type. During our  

Waltraud Jansen  Carlstrasse 60  52531 Übach-Palenberg Germany  market launch tests, the cleaning technology proved effective for all fibres that are  difficult to spin, such as recycled fibres and regenerated fibres. Our customers can  now rest assured that they’ll be ready to meet the requirements of the future thanks  to the new rotor cleaning system. 

Optimised automation for higher efficiency 

The new DCUs on the Autocoro 10 are not just automatic devices focused on  doffing packages and cleaning the rotor – they are the right hand of the spinning  mill personnel, and a new type of operator guidance in two steps makes  communication with the personnel quicker and easier. The LED signals, visible from  afar, indicate to the personnel when manual intervention is needed. The DCU itself  has digitally controlled touch menus with plain text information. This way, the  operator knows immediately what needs to be done: whether the auxiliary yarn  required for doffing the package is coming to an end or some other manual  intervention is necessary. This optimised operator guidance improves the timing of  the auxiliary yarn supply and increases the efficiency of both the DCUs and the  Autocoro 10. 

The patent has been granted and the new rotor cleaning system will be integrated  into all newly delivered Autocoro systems as of summer 2023. It will also be available  as a retrofit kit for Autocoro 8 and Autocoro 9

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