link no. 59 customer magazine spun yarn systems - Rieter

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12 LINK 59 . 1 /2012 PRODUCT NEWS Operating steps HIGHER COMBER EFFICIENCY Idle time [min] 0 2 4 6 8 10 12 14 Idle time Average Manual piecing optimized Fig. 4 Productivity win through automatic piecing with ROBOlap. ROBOlap E 66 with E 16 E 76 (ROBOlap) with E 17 guides 2 lap trolleys behind the comber guides 2 lap trolleys behind the comber detaching the batt and replacing the tubes fully-automatic tubes moved onto the lap trolley at the touch of a button full laps delivered from the trolley to the machine at the touch of a button Efficiency +2 % Time for lap change and piecing fully-automatic fully-automatic piece 8 laps fully-automatic start machine fully-automatic clean tubes and return to comber preparation fully-automatic Fig. 5 Comparison between manual and automatic combers with ROBOlap. ROBOlap and SERVOlap E 26, the fully-automatic solution ROBOlap and SERVOlap E 26 are undisputedly the best combination in the area of automation because both systems function without human intervention. The “overhead transport” takes place from the combing preparation up to the combing machines. All processes are conducted automatically and without external intervention: the transport of residual material from the tubes, the removal of the tubes from the machine, the placing of the new laps, the piecing process itself and the restart of the combers (Fig. 5). 97 96 95 94 93 92 91 90 Efficiency [%] Only in the case of Rieter automation with SERVOlap are the empty tubes automatically cleaned and refed to the transport system – one of the many exclusive features for Rieter customers. ROBOlap and SERVOtrolley E 17, a combination with manual transport An economic combination is ROBOlap and SERVOtrolley E 17. In the past, only the fully-automatic feed with SERVOlap was available for combers equipped with ROBOlap. Today, however, it is possible to operate the combers equipped with an automatic piecing system with the SERVOtrolley type E 17. The difference to the SERVOlap can be found in the lap transport that can be manually carried out with the aid of a transport trolley, whereby 4 laps and tubes can always be transported. The loading process for the 4 laps onto the transport trolley is automatically executed. The loaded transport trolley is guided by the operator to the combing machine and precisely positioned by a guide rail. As soon as the two trolleys with 4 laps each reach their final position at the comber, the automatic lap change can begin. Mixed operation of manual and automatic combers Until recently, the extension of a manual combing section with automatic combing machines was undesirable due to the necessary investments for the transport system. The option to use the SERVOtrolley E 17 combined with an automatic comber now makes the extension of an already existing manual combing section by individual combers equipped with ROBOlap attractive and economic. A minimal change of the already available comber preparation E 30, E 32 or E 35 is sufficient to utilize the machine in a mixed operation with SERVOtrolley E 16 and E 17 (Fig. 6). The UNIlap or OMEGAlap is then in the position to recognize the respective trolley type for the lap feed and to thereby adjust the height of the lap delivery, as the manual combers have a different height to that of the automatic machines. This permits Rieter customers to exploit the advantages of an automatic comber without having to renew the entire combing section.
Fig. 6 Lap change on the E 76 comber with ROBOlap and SERVOtrolley E 17. Fig. 7 Process optimization in the spinning plant by utilization of uniform cans with 1 000 mm diameter. 1 000 mm CANS Rationalizing cans with 1 000 mm diameter The new sliver delivery for 1 000 mm can diameter corresponds to the requirement for uniformity of the can sizes in the spinning plant and offers unchallenged benefits in productivity and quality. The change to cans with 1 000 mm diameter on the comber allows the use of uniform cans – from the card through to the feeding of the autoleveler draw frames (Fig. 7). These cans hold double the material quantity of the 600 mm cans so far in use. The frequency of the can change is thereby halved and the efficiency of the comber is slightly raised by approx. 0.3 %. The benefit is, how- LINK 59 . 1 /2012 PRODUCT NEWS ever, substantially greater with the autoleveler draw frame where the number of piecers is halved due to the double quantity of material in the cans. The efficiency of the draw frame consequently increases by more than 1 % and this with a simultaneous quality improvement. With the presently available ROBOlap option in conjunction with a semi-automatic transport system and the new sliver delivery for cans with 1 000 mm diameter, productivity and quality in combing can be increased. 12-105 • Yvan Schwartz Head Product Management Combers Winterthur yvan.schwartz@rieter.com 13
Page 1 and 2: The customer magazine of Rieter Spu
Page 3 and 4: Ready for the Future Recent months
Page 5 and 6: On the one hand, we are able to mor
Page 7 and 8: WASTE COMPOSITION IN THE BLOWROOM,
Page 9 and 10: Economy Quality Flexibility 1 2 Hig
Page 11: Automation in Combing More than 50
Page 15 and 16: R 60 - Nm 28 / Ne 17, 100 % COTTON
Page 17 and 18: Fig. 2 With SERVOtrail the roving f
Page 19 and 20: NE 30, 100 % COTTON, KNITTING YARN
Page 21 and 22: 4 spinning systems in the Rieter Sp
Page 23 and 24: Installed rotors [1 000] Fig. 3 Fig
Page 25 and 26: Number of particles/1 000 m Fig 9 F
Page 27 and 28: The higher the grade, the better 6
Page 29 and 30: Innovative Retrofits for Draw Frame
Page 31 and 32: Presentation of the Rieter Award in

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