Rieter

Rieter’s automatic grinding system (IGS)

Index

IGS stands for Integrated Grinding System.

With IGS-classic a grindstone is moved over the  cylinder  clothing by the automatic control during production. This procedure takes place 400 times during the expected service life of the clothing, not every 80 - 100 tons, as is the case with laborintensive manual grinding. There is absolutely no risk of damage to the clothing due to improper handling of the grinding system when using IGS-classic. The service life of the cylinder clothing has been prolonged by over 30% thanks to IGS-classic. In addition, the savings made on maintenance are obvious. Also there are no downtimes where the machine is idle while manual grinding takes place.

The IGS-classic cylinder grinding system (Fig. 143)

consists of an aluminum profile as carrier and a linear-directed grindstone stabilized by spring pressure. In the parked position (right-hand side of the machine) the flat belt is pushed upwards by clamp profiles so that no dust or particles of fibers can get inside the profile. The parameters necessary for the grinding operation can be entered on the card. The program calculates the grinding schedule, distributing the fixed grinding cycles optimally over the lifetime of the cylinder clothing (270 and/or 400, to and fro = 1 cycle ). The time between cycles is longer at the beginning of the schedule than at the end. On the way to the left-hand side of the machine the grindstone is lowered. Grinding occurs when the grindstone moves from the left to the right-hand side of the machine. This means a sharp wire all the time and thus constant quality (Fig. 144).

Fig. 143 – IGS-classic

Fig. 144 – Grinding without (left) and with IGS (right)