Kolohoida Antonina, Chernihiv National University of Technology (95 Shevchenka Str., 14027 Chernihiv, Ukraine)

Language: ukrainian


Urgency of the research. The condition of clothing wire mostly influence on the quality processing wool. It is necessary to carry out grinding after it replacement on the drums and rollers of textile machines and after long-term operation. There are not procedures for the selection of cutting conditions at this time.

Target setting. The important technical problem is determined optimal grinding modes needle sets for required quality and maximum productivity.

Actual scientific researches and issues analysis. A number of studies have reviewed and analyzed existing schemes grinding surface of needle rollers and drums textile machinery. Proposed method of determining the total cutting force.

Uninvestigated parts of general matters defining. Most works have regarded textile roller as a continuous cylindrical surface, and it have entered discontinuity factor. The important issue is the power factors acting on a needle.

The research objective. The main purpose is determining the individual forces acting on the needle, which will be able to determine its movement during grinding. And it will be possible more rationally to choose modes grinding and tool’s features.

The statement of basic materials. In this work defined the length of the contact line a needle with abrasive grains. Determined the number of grains which taking part in the processing of a needle in general, and defined the maximum number of grains that cut together. Experimentally determined counter force bases needle felt headsets, as a result it will be possible to modeling moving needle during grinding.

Conclusions. The proposed method of determining the individual cutting forces acting on one needle in the needle sharpening sets of drums and rollers of textile machines.

Key words:

sharpening, grinding, clothing wire, cutting force


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