Dilo Group participated in IDEA 2019 exhibition held in Miami between 26-28 March. The most recent machine concepts from DiloGroup companies DiloTemafa, DiloSpinnbau and DiloMachines promoted with the emphasis on new equipment components which improve product quality, increase line capacity and furthermore enable new opportunities in nonwoven production.
DiloTemafa has introduced versions of the Baltromix bale opener and the card willow which are particularly suited to the processing of longer fibres at highest throughput. Longer cleaning intervals and shorter cleaning times also result from the design changes.
DiloSpinnbau has a new “Unifeed” card feeder (VRS-P) which combines the principle of volumetric charged feeding with the characteristics of a chute feeder but without the conventional overhead trunk which allows for lower ceiling height requirement. The fibre flock matt is condensed by a vacuum delivery apron to give better uniformity of mass distribution. The distribution over the working width is controlled by additional flaps. This feeder can be adapted for medium/fine to coarse and medium to long staple fibres.
The “VectorQuadroCard” incorporates a modular transfer group between breast and main section. The quick change facility of this roller group provides different carding options. The delivery system is also flexible to provide parallel laid, random or condensed web.
DiloMachines has a new horizontal crosslapper version “DLSC” which allows web infeed speeds up to 200 m/min depending on fibre specification. Such infeed speeds will prevent the lapper being the line bottleneck. The DLSC works in conjunction with the proven CV1A web regulation system for improved felt evenness and the potential for fibre savings. A further increase of the drive power within the three-apron-layering technology as well as the application of carbon fibre reinforced parts enables these major improvements.
Developments underway relating to the needling process include “Needle Module Technology” whereby needles are pre-mounted in multiple units of 22 for insertion into very high-density boards. It is reducing visible mark- ing patterns on the product´s surface significantly. Furthermore, it enables a simplified Needle insertion and shorter setup time.
In addition to wide needling lines for the economic production of large volume products as in the geotextile industry, Dilo offers a “plug-and-play” compact line which is designed for the production of small amounts of high-quality felts, used e. g. in the medical sector and for specialty felts made from high-tech fibres.
The Dilo Compact Line includes fibre opening and blending, card feeding, carding and crosslapping, needling and winding. The working width of the compact carding machine is 1.1 m, the layering width is 2.2 m. Numerous innovations were realized in every single machine. These innovations also facilitate the modifications necessary for the needling of carbon fibre.
Dilo has introduced a new “HyperTex” technology which pro- duces multi-layer felts made from base web, reinforcing layer and upper web. By using the scrim fabric machine of Ontec Automation GmbH it is possible to integrate a grid of unconsolidated yarn or filaments between two webs. The scrim can be fed inline and is then needled together in the subsequent needle loom. A great advantage of this method is the very high production speed for the complete process. Scrim formation and subsequent nee- dling achieve speeds up to 40 m/min.