专利名称：Minimum value determining regulation
method at a drawing or carding machine
发明人：DAEMMIG, JOACHIM申请号：EP97101944.3申请日：19970207公开号：EP0803596A3公开日：19990714
专利附图：
摘要：A draw zone on a draw frame or card has an open loop controller (10) withupstream sensing to adjust the draw ratio imposed on the sliver (20). The settings ofdelay and/or gain (R,K) are determined by measuring several values of a quality
determining parameter, such as coefficient of thickness variation (CV), to obtain thefunctional relationship with delay or gain and optimising on the minimum values. Theseoptimum values are determined in a prior test run and are left unchanged duringproduction. Also claimed is a simplified method of adjusting delay (R) by storingupstream sliver measurements (do(n)). These are rewritten and read cyclically at thesame location. The number of storage locations of a cycle between test runs is alteredaccording to the delay distance (R).
申请人：RIETER INGOLSTADT SPINNEREIMASCHINENBAU AG
地址：Friedrich-Ebert-Strasse 84 85055 Ingolstadt DE
国籍：DE
代理机构：Bergmeier, Werner, Dipl.-Ing.
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