Rieter's Combing Set - E 36 And E 86 Ensures High Production And Quality

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Rieter's Combing Set - E 36 And E 86 Ensures High Production And Quality

The new combing set, consisting of the E36 OMEGAlap and the E86 combing machine, is the result of continuous development of the thousand fold-proven predecessor models. The delivery speed of the OMEGAlap of 230m/min, the quality-enhancing components of the E86 comber as well as the set-production of 540 kg/h combed sliver are the outstanding performance features which Rieter presented during the ITMA 2015 in Milan (Fig. 1).

E 36 OMEGAlap - the most economical combing preparation

Since its introduction 12 years ago, the OMEGAlap has maintained unchallenged highest production rate in combing preparation. The E36 OMEGAlap is the result of consistent development of this innovative product. The proven belt winding technology guarantees gentle and uniform contact pressure over the largest possible lap circumference (270°). This system has been perfected over many years, so that a lap of the highest quality can be manufactured. The OMEGAlap combing preparation supplies uniformly built-up laps with low hairiness and high lap weight combined with maximum production. The doffing time has been shortened and a delivery speed of up to 230 m/min is made possible. That corresponds to a production of over 600 kg/h and a 50% production increase compared to conventional combing preparation systems.

The E36 OMEGAlap is the ideal combing preparation for maximum output and economy. At maximum comber production, an E36 can supply the laps for 6 E86 combers. For smaller sets, the E 34 OMEGAlap continues to be available.

E 86 Comber - for better combing

The latest E 86 comber from Rieter retains well-known features and profitable features added (Fig. 2). The customer, therefore, receives a combing machine that allows the best quality or the highest productivity on the market depending on the objectives.

The maximum output of the E86 comber is 90 kg/h combed sliver (up to 540kg/h set-production). The production of 2 tons per day is therefore significantly exceeded. The largest active circular combing area with an expansion of 45% compared to the E 76 generation permits highest fibre purity and improved fibre parallelism. Optimally coordinated movement sequences lead to high nip rates with simultaneously gentle and controlled fibre treatment. The setting options on the E86 comber allow the spinning mill to pursue either highest quality, maximum productivity or greatest raw material utilisation targets.

By using a 1000 mm can diameter at the delivery of the E86 comber, the manpower requirements can be reduced by 10% as the cans have 75% more storage capacity than the 600 mm cans. Consequently, also the efficiency of the comber and the draw frame increases because the number of can changes is halved. The drafting arrangement of the E86 comber is improved by the addition of fibre-guiding components which reduces the number of clearer cuts in the yarn by up to 50%. Further, the calender module has been further developed, which ensures an optimal and compact combed sliver.

The fully automated combing section

Full automation of combing section allows a smooth 24-hour operation in the spinning mill and reduces manpower requirement. For more than 20 years, Rieter has been the only successful supplier of a fully-automated combing section and has perfected this.

1. Today's fully-automated Rieter combing section has been realised by below system.

2. Lap changing and piecing system ROBOlap.

3. Lap and tube transport system SERVOlap E26.

The ROBOlap removes the empty tubes, positions the 8 full laps and prepares the lap ends for the subsequent pneumatic piecing. With the fully-automated lap changing system ROBOlap, the efficiency of the E86 comber is increased by approx. 2%.

The quality of the automatic lap piecing device achieves a consistently high level over all 8 heads and is therefore better than manual piecing. Furthermore, the ROBOlap reduces personnel effort in the combing section and the production becomes less reliant on the operator. The ROBOlap is already being successfully used in more than 3000 Rieter combers.

The lap and tube transport system E26 SERVOlap transports full laps from a combing preparation system to the comber and returns the empty tubes from the comber. The laps are transported gently and prepared for the further process so that a continuous high quality can be guaranteed. The worldwide use of the transport system in more than 20 countries has generated valuable experience by which the system could be steadily improved.

The manpower requirement of the fully-automated Rieter combing section with E26 SERVOlap and ROBOlap is lower by a considerable 60% than the manpower requirement of a combing section without automation (Fig. 3).

Conclusion

With the new combing set E36 OMEGAlap and E86 combe from Rieter, customer could expect highest production (up to 540 kg/h) and a completely automatic combing unit ensures either maximum production, highest quality or high savings on raw material.