Method and apparatus for monitoring the yarn winding production process
AssigneeW. Schlafhorst AG & Co.
InventorGregor Kathke
Life of this patent
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Abstract
In a method and apparatus for monitoring a yarn winding production process, the traversing amplitude and/or the traversing frequency are monitored by a cross-winding monitoring system, which supplies cross-winding signals over electrical lines to a control and information device, in which the signals are linked with set-point values and/or signals characterizing the winding operation. Conclusions are drawn from the linkage results as to a plurality of characteristics of the winding process, such as misfeeds, drum laps, bobbin laps, ribbon winding state, yarn tensioner function, yarn tension change, drum malfunction, cheese grading, type of cross-winding system and quality of the cheese.
Claims27
Method for monitoring the yarn winding production process of bobbin winders of a machine producing cross-wound bobbins or cheeses, which comprises
- monitoring at least one of the traversing amplitude and traversing frequency of a yarn running from a stationary yarn guide device through a cross-winding device onto a cheese with a cross-winding monitoring system emitting signals proportional to at least one of the traversing amplitude and traversing frequency;
- supplying the signals to a control and information system of the machine specifying set-point values determining a winding operation;
- monitoring adherence to the set-point values with sensors connected to the control and information system,
- influencing at least one of drive devices and yarn guide devices and tripping information and reporting and switching events pertaining to the winding operation with the control and information system in the event of deviations from the set-point value for assuring the winding operation;
- and
- linking the signals proportional to at least one of the traversing amplitude and traversing frequency with at least one of the set-point values and signals and information characterizing the winding operation in the control and information system with a logic element, for drawing conclusions from the result of the linkage as to a plurality of selectable characteristics of the winding process from the group consisting of misfeeds, drum laps, bobbin laps, ribbon winding state, yarn tensioner function, yarn tension change, drum malfunction, cheese grading, type of cross-winding system and quality of the cheese.
Apparatus for monitoring the yarn winding production process of winding devices of a machine producing cross-wound bobbins or cheeses having a yarn guide device and a traversing device, comprising
- an MIC (monitoring information control) system on the machine for permanently monitoring each winding device of the machine in accordance with definable and adjustable criteria, said MIC system including winding station computers for the winding devices, a central processing unit, set-point value transducers for production parameters and basic setting values, at least one memory for actual data occurring during production, devices for processing data according to programs, and a device for issuing control commands and signals;
- means connected to said MIC system for controlling cheese production;
- sensors connected to said MIC system for monitoring a yarn winding production process and for detecting each production change as well as the current yarn length of an individual cheese;
- said MIC system having means for processing each production change and the current yarn length of the individual cheese into control signals;
- a cross-winding monitoring system including measuring instruments on the winding devices being connected to said MIC system, said cross-winding monitoring system continuously monitoring at least one of the traversing amplitude and traversing frequency of yarn running from the yarn guide device through the traversing device onto a cheese and generating cross-winding signals proportional to at least one of the traversing amplitude and traversing frequency;
- and
- said MIC system having a logic element for linking the cross-winding signals and drawing conclusions from a linkage result as to a plurality of selectable characteristics of the winding process from the group consisting of misfeeds, drum laps, bobbin laps, ribbon winding state, yarn tensioner function, yarn tension change, drum malfunction, cheese grading, type of cross-winding system, quality of the cheese and current yarn length.
Apparatus for monitoring the yarn winding production process of winding devices of a machine producing cross-wound bobbins or cheeses, comprising
- an MIC (monitoring information control) system for monitoring each winding device including winding station computers, a central processing unit, set-point value transducers, and at least one memory;
- means connected to said MIC system for controlling cheese production;
- sensors connected to said MIC system for monitoring a yarn winding production process and for detecting each production change as well as the current yarn length of an individual cheese;
- said MIC system having means for processing each production change and the current yarn length of the individual cheese into control signals;
- a cross-winding monitoring system including measuring instruments on the winding devices being connected to said MIC system, said cross-winding monitoring system continuously monitoring at least one of the traversing amplitude and traversing frequency of yarn running onto a cheese and generating cross-winding signals proportional to at least one of the traversing amplitude and traversing frequency;
- and
- said MIC system having means for linking the cross-winding signals and drawing conclusions from a linkage result as to a plurality of selectable characteristics of the winding process.
Dependencies are inferred from the claim text.