US 6,874,204 B2Granted

Apparatus for the optimizing of the regulation adjustment of a spinning machine as well as a procedure corresponding thereto

AssigneeRieter Ingolstadt GmbH

InventorsJoachim Dämmig, Chokri Cherif, Imadettin Karalar

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Abstract

The invention concerns an apparatus for the optimization of the regulation adjustment of a machine in spinning preparation, in particular a regulated draw frame, a carding machine, or a combing machine, to which one or more fiber bands are continually fed. The apparatus has at least one sensor which is positioned ahead of the feed end of a draw frame machine for the purpose of capturing the values of band thicknesses of one or more of the entering fiber bands. The apparatus also has at least one delivery end sensor located at the delivery end of the draw frame machine for the purpose of capturing the values of the band thickness of the produced fiber band of a first draw frame operational mode. The apparatus also includes a microprocessor for the comparing of the captured values of the at least one delivery end sensor to those of at least a second draw frame operational mode, whereby the second draw frame operational mode does not represent the normal operational mode of the draw frame machine. The apparatus also includes a control and/or regulation unit for the adaption of the regulatory adjustments on the grounds of such machine characteristics and/or fiber material properties as can influence the measured values. Likewise, a corresponding procedure is proposed.

Claims32

Dependent claims

An apparatus for optimization of adjustments for a regulated drawing unit for drawing at least one fiber band in a spinning preparation machine, said apparatus comprising:

at least two roll-pairs having said at least one fiber band being receivable by said roll-pairs and said at least one fiber band being drawn between said roll-pairs;
a control unit operably connected to at least one of said roll-pairs, said control unit controlling the speeds of said at least one of said roll-pairs;
a first sensor operably located before said roll-pairs in a direction of travel of said at least one fiber band and in communication with said control unit, said first sensor taking measurements of band thickness of said at least one fiber band before said at least one fiber band is received by said roll-pairs;
a second sensor operably located after said roll-pairs in the direction of travel of said at least one fiber band and in communication with said control unit, said second sensor taking measurements of band thickness of a first resulting fiber band for a first operational mode after said at least one fiber band has been drawn;
a microprocessor operably disposed between said second sensor and said control unit, said microprocessor receiving said measurements of band thickness of said first resulting fiber band for said first operational mode;
a memory in communication with said microprocessor, said memory storing information that includes measurements of band thickness of a prior or subsequent second resulting fiber band for a second operational mode, whereby said second operational mode represents a non-normal operational mode;
and
said microprocessor making a comparison of said measurements of band thickness of said first resulting fiber band to said measurements of band thickness of said second resulting fiber band and sending said comparison to said control unit, whereby said control unit controls the speed of said at least one of said roll-pairs to regulate said regulated drawing unit by making adjustments based on said comparison.

5 more elements

A procedure for optimization of adjustments for a regulated drawing unit for drawing of at least one fiber band in a spinning preparation machine, said procedures comprising the steps of:

feeding at least one fiber band into the regulated drawing unit in a first operational mode;
measuring band thickness of the at least one fiber band using a first sensor as the at least one fiber band enters the regulated drawing unit;
drawing the at least one fiber band into a first resulting fiber band;
measuring band thickness of the first resulting fiber band for the first operational mode using a second sensor as the first resulting fiber band exits the regulated drawing unit;
accessing a memory which includes measurements of band thickness of a prior or subsequent second resulting fiber band for a second operational mode;
comparing measurements of band thickness of the first resulting fiber band for the first operational mode to the measurements of band thickness of the second resulting fiber band for the second operational mode using a microprocessor;
adjusting control of the regulated drawing unit using a control unit based on the comparison of the measurements of band thickness of the first resulting fiber band to the measurements of band thickness of the second resulting fiber band.

4 more elements

Dependencies are inferred from the claim text.