Localization of random characteristics of saw log to increase the efficiency of its sawing
https://doi.org/10.53374/1993-0135-2024-4-95-100
Abstract
The article is devoted to summing up some preliminary results of the functioning of modern sawmill production lines based on milling saw equipment with floating (flexible) sawing plan. The analysis shows that not all declared advantages are fully realized during their operation. There is no doubt that the productivity of the sawmill flow has increased more than tenfold. Expectations for a radical simplification of the process of sorting sawn raw materials by thickness due to the automatic installation of individual sawing plan are not justified due to intractable problems in sorting lumber by size and quality. The use of expensive 3D scanners, tomographs and mechanisms for optimal orientation of logs does not lead to a noticeable increase in the volumetric yield of lumber. The procedure for assessing the effectiveness of further improvement of control and optimization systems remains unclear. For such an assessment, it is necessary, first of all, to find out how and to what extent the random characteristics of the saw log influence the efficiency of its sawing. As a result of simulation studies, a rating of the reasons for the deviation “minus” of the actual volumetric yield of lumber from its calculated value was established. It is shown that curvature comes first, far ahead of other factors. The dependences of the volumetric output and profitability of production on the curvature of the logs were obtained. They show how much it is possible to increase the volumetric yield of lumber and the profitability of their production with full or partial localization of the curvature of the logs.
About the Authors
V. V. Ogurtsov
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
E. V. Kargina
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
I. S. Matveeva
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
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Review
For citations:
Ogurtsov V.V., Kargina E.V., Matveeva I.S. Localization of random characteristics of saw log to increase the efficiency of its sawing. Conifers of the boreal area. 2024;42(4):95–100. (In Russ.) https://doi.org/10.53374/1993-0135-2024-4-95-100
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