Fully automated fibre length tester

LENGTHCONTROL

LENGTHCONTROL is a mobile device for use in the spinning mill. As its measurement is independent of the room climate, it can be set up at any place close to the production machines.

The test results of LENGTHCONTROL yield valuable information about the mechanical stresses which the fibres undergo in the manufacturing process. At the same time they deliver data for optimum settings of card, draw-frame, or combing machine.

Universally applicable

LENGTHCONTROL was designed to test all kinds of slivers from carding machines, draw-frames, and combing machines, as well as from laboratory preparatory equipment. Fibres may be cotton,chemical fibres, or fibre blends, up to 63 mm staple length.

Easy to use

The operator simply has to insert the sliver and start the device. No special operator training is  required, and there is no possibility that human error could influence the test result.

Tests on-site

The use of the tester close to the production machine enables quick analysis of the produced sliver and feedback to the machine control for optimum setting of process parameters. In this way delays, as they may occur by time-consuming transportation of samples into a laboratory, sample preparation, adaptation to normal climate, and evaluation of the results can be avoided.

LENGTHCONTROL is very sturdy. Dusty air and high temperatures in the spinning mill do not have an influence on the measurement.

Quick test

A standard test series on a sliver, which includes 10 successive individual measurements, takes not more than about 10 minutes.

Objective and fully automatic measurement

Each test is executed fully automatic and without any manual intervention. The measuring systems do not require any form of calibration, for example by the use of calibration cotton, which excludes the potential of false results due to improper or missing calibration.

Proven measuring principle

The measuring principle is based on a modified Fibrograph principle. The sliver is clamped, and the fibre tuft is carefully combed at both sides. An optical sensor measures the fibre mass with reference to the distance to the clamp.

Meaningful results

The measurement results are easy to interpret. Instead of providing a host of information, the data evaluation is concentrated on just three fibre  parameters, sufficient for 90 percent of all applications. If required, however, additional parameters can be called up.

Measurement results from LENGTHCONTROL enable optimization of process parameters, e.g. cylinder speed (card), No. of passages, height of doubling, main drafting distance (draw-frame), or combing percentage (combing machine).

Technical data

Mains supply:

Continuous power consumption:

Compressed-air supply:

Dimensions:

The above technical contents can be subject to changes by Textechno