KIESELSTEIN International GmbH - Hersteller moderner Drahtziehanlagen und Drahtziehschälmaschinen sowie Drahtverarbeiter
Kieselstein Worldwide Kieselstein Aktuell

Recent Projects

Thanks to our customers we have the opportunity to deal with unique projects over and over again, develop innovative solutions, implement exciting design tasks and assemble individual plants. We are proud of these projects that we realized for our customers together as team K and would like to present these projects at this point.

Shaving Unit DS-30

Improving surface quality with litte effort

The task:
Our customer intends to remove defective surface areas of round wire with the least possible effort within the drawing process. The metallically bright surface reached is supposed to be suitable for the processing with rolling or drawing equipment. The customer process carbon steel, low-alloy steels, ferritic, martensitic and austenitic stainless steel as well as titanium. The inlet wire has a diameter of up to 6.00 mm; the finished wire is in a range of up to below 3.00 mm.

The customer disposes of a wire drawing / shaving plant from KIESELSTEIN and intends to us this shaving unit at this plant when required.
 
Our solution:
The wire shaving unit is designed for holding the calibration die as well as the shaving die itself. At the inlet side there is a drop lever wire breakage detector, that signalizes wire breakage or wire end.

The soap box is designed for wet lubricant and, by using an insert in the drawing die box, also for dry drawing. Inside the soap box there is an oiling tube. This is to ensure that even when using oil with a higher viscosity the wire is coated with oil all the time.

The drawing die holder contains the drawing die cassette with the drawing die and can be removed together with the soap box by loosening the fastening screws. The drawing die is directly water cooled. The drawing die cassette is clamped manually inside the drawing die holder.

The shaving flange holds the shaving die. In order to improve the chip forming the shaving die holder is designed conical. The additional indirect water cooling of the shaving die shall extend the tool lifetime.

A chip breaker inside the chip compartment crushes the chips in small pieces. With only a few handgrips the setup of the chip breaker can be made and is reproducible. The chip breaker consists of two rotating carbide blades of that are adjustable to the wire diameter and that can be removed as well as a continuously adjustable drive. The complete chip compartment has a wear resistant coating.

In order to install the wire shaving unit at the machine easily and quickly instead of a drawing die holder, there are boring bushes and quick-release levers. With very little effort a considerable improvement of the surface quality of the wire can be reached on an existing wire drawing plant.

Down-coiler WVZ 900

Strong combination

The task:
Our customer uses chemically descaled and coated wire rod. Partially, this is annealed before drawing, however the plant is supposed to process wire with a tensile strength of up to 1200 Mpa. The inlet diameter is in a range of up to 18.00 mm. The special requirements of the installation and the high productivity led to a special solution of the wire take-up.

Our solution:
Based on the desired production range and the requirements of the customer we designed a plant with a down coiler. The inlet material is put on a vertical wire pay-off ABV-Tka. The feeding is facilitated by a hydraulic tilting function. The pay-off speed is controlled by a dancer.

For the intended drawing task we chose a vertical down coiler WVZ 900. This machine is able to provide the necessary drawing force for the intended cross section reduction. For facilitating the drawing-in process and increasing the operator’s safety the machine disposes of an automatic pull-in dog. It is equipped with a drawing lubricant box which can be used both with dry lubricant and emulsion. For reproducing its position the drawing lubricant box is equipped with KPI (KIESELSTEIN position indicators).

The wire windings run from the vertically hanging drawing capstan down to a vertical double take-up with stem. During the drawing process, one rotating plate is in working position under the coiler, the other one is in unloading position. This enables to continue the drawing process during the unloading process. Unloading the coil is realized by means of a coil gripper.

The coils unloaded are hydraulically compacted and tied up in the provided tiltable coil compacting device. The scope of supply is completed by an advancing unit ensuring a straight wire run into the down-coiler, a welding machine as well as safety fencing around the complete work area.

For us it was important, as in many of our projects, to supply an overall concept to the customer in the form of an individual plant achieving the desired objectives. Entirely in the sense of „solutions - individually engineered“.