Wear of the Main Threads of a Weaving Machine
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of the Main Threads of a Weaving Machine T. Yu. Stepanovaa, * and E. Yu. Kuvaevaa aIvanovo
State University of Chemical Technology, Ivanovo, Russia *e-mail: [email protected]
Received January 17, 2020; revised July 2, 2020; accepted July 7, 2020
Abstract—The issue of evaluating characteristics of the frictional properties of blended yarn and the effect of the emulsifying composition on the wear resistance of the fibrous material is considered. A technique for determining thread wear before and after processing is presented. The calculation of the contact pair of thread–metal for wear is of great importance for solving the problem of predicting the strength and reliability of the main threads in the weaving process. Keywords: thread wear coefficient, contact pad width, friction path, linear wear DOI: 10.3103/S1068366620050189
INTRODUCTION Processing fibrous semi-finished products with solutions of substances with surface-active properties increases the resistance of threads to abrasion in the thread–metal contact pair of the equipment of the loom [1–4]. There are several theories that cover only certain aspects of engineering calculations of the wear of polymeric materials. For textile yarns, there are no such theories and calculations, and therefore the solution to this problem looks timely and relevant. L.S. Leites pointed out in his studies that the cause of the destruction of the thread is not only its tension, but, to a greater extent, surface abrasion from parts and components of the equipment. L.G. Guminsky, A.I. Koblyakov, G.N. Kukin, and A.B. Pakshver believed that threads with a low modulus of elasticity and a large operation of breaking have good resistance to abrasion [4–6]. The scientific novelty of the results of this study is to create a methodology for calculating the wear of the main threads during abrasion on the headset of a loom, which will determine the effectiveness of emulsifying compounds that can form protective adsorption layers on the surface of the fibers. Increasing the stability of textile materials and assessing the effect of emulsions on thread wear should be considered as a definite contribution to the development of scientific ideas in the field of fiber wear friction the results of which are of practical importance for processes of mechanical technology of fibrous materials. Aim of the study: Development of a method for determining the wear of warp threads during abrasion on the equipment headset, which makes it possible to
determine the effect of emulsifying compositions on the wear resistance of a fibrous material. MATERIALS AND METHODS Tests for the abrasion of textile yarns were carried out on a TKI-5-27-1 device (METRIMPEX, Hungary). The abrasive mechanical effect on the samples is a crank drive mechanism. A frame containing ten heddles can be mounted on the device, and abrasive action is created by means of threads on the steel surface of the heddles’ eyes. The load value is selected according to the thickness of the tested thread, which in this case is 0.5T. Comp
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