System for monitoring the sliver fill level of a spinning can

Abstract

A system for monitoring a sliver fill level of a spinning can which can be brought to or is arranged at a working point of a sliver-processing textile machine. The system comprises a position detection unit for ascertaining the position of a surface of the sliver arranged in the spinning can, the surface facing the open end of the spinning can, and/or the position of the component which moves together with a sliver section deposited in the spinning can; an analysis unit connectable to the position detection unit for determining the sliver fill level of the spinning can on the basis of the ascertained position of the surface of the sliver or the ascertained position of the component, and a transmission unit connectable to the analysis unit for transmitting information relating to the sliver fill level of the spinning can to an information-processing unit which processes the fill level information.

1 . A system for monitoring a sliver fill level of a spinning can which can be brought to a working point of a sliver-processing textile machine or which is arranged at the working point, the system comprising:
 a position detection unit for determining a position of a surface of a sliver arranged in the spinning can, wherein the surface faces an open end of the spinning can, and/or of a component which virtually moves along with a sliver portion deposited in the spinning can;   an analysis unit which can be connected or is connected to the position detection unit for determining the sliver fill level of the spinning can in accordance with a determined position of the surface of the sliver or a determined position of the component; and   a transmission unit which can be connected or is connected to the analysis unit for transmitting information relating to the sliver fill level of the spinning can to an information processing unit which processes the information relating to the sliver fill level.   
     
     
         2 . The system according to  claim 1 , wherein the position detection unit has optical and/or acoustic sensors for sensing the determined position of the surface of the sliver and/or the determined position of the component, or the position detection unit has a magnet unit arranged on the component and a stationary or mobile Hall sensor which is positioned in a measurement position opposite the magnet unit. 
     
     
         3 . The system according to  claim 2 , wherein the position detection unit is stationary or mobile, wherein the optical and/or acoustic sensors or the stationary or mobile Hall sensor are arranged to sense the sliver fill level during guiding of the spinning can past the position detection unit or vice versa. 
     
     
         4 . The system according to  claim 2 , wherein the position detection unit is formed by an automation unit which can be moved along the sliver-processing textile machine. 
     
     
         5 . The system according to  claim 1 , wherein the information processing unit is an output unit arranged outside of the spinning can for outputting information relating to the sliver fill level. 
     
     
         6 . The system according to  claim 1 , wherein the spinning can has a spinning can bottom which can be moved between a start position and an end position and is associated with the system, the component being formed by the spinning can bottom. 
     
     
         7 . The system according to  claim 1 , wherein the at least one spinning can has a spinning can bottom which can be moved between a start position and an end position and is associated with the system, the component being arranged on the spinning can on an outer wall side and being connected to the spinning can bottom by a bar so as to move along virtually between the start position and the end position, the bar extending through a slot in a side wall of the spinning can, the slot extends at least between the start position and the end position of the spinning can bottom. 
     
     
         8 . The system according to  claim 1 , wherein the system is assigned the spinning can having a spinning can base adjustable between a start and an end position, wherein the component is magnetized or magnetic and is held on an outside of a side wall of the spinning can via magnetic holding forces, wherein a magnet is arranged in a fixed position on the spinning can base for generating the magnetic holding forces. 
     
     
         9 . The system according to  claim 1 , further comprising a parameter-sensing unit for sensing a defined parameter with respect to material of the sliver, the parameter-sensing unit being designed to transmit information about the defined parameter to the analysis unit, the analysis unit being designed to evaluate the information with regard to adherence to and/or deviation from at least one defined limit value or range and to forward the information thereby evaluated. 
     
     
         10 . The system according to  claim 9 , wherein the spinning can comprises a writable memory chip for storing the defined parameter, the parameter-sensing unit having a reading unit for reading the writable memory chip. 
     
     
         11 . The system according to  claim 10 , wherein the parameter-sensing unit comprises a writing unit for writing needs-based information to the writable memory chip. 
     
     
         12 . A textile machine comprising the system according to  claim 1 , further including the working point comprising a spinning can holder for holding the spinning can and a take-up device for taking up the sliver from the spinning can. 
     
     
         13 . The textile machine according to  claim 12 , wherein the textile machine is a spinning machine having a plurality of working points, each working point having a spinning apparatus for spinning a thread from the sliver, and a checking unit which is arranged downstream of the spinning apparatus along a thread path for checking predeterminable or predetermined properties of a spun thread, and is connected to the information processing unit via the analysis unit for evaluating the thread properties sensed by the checking unit in order to bring about a shutdown of the working points or a signaling of the shutdown or a signaling relating to the information when defective sliver material is detected as evaluated information.