Method and apparatus for recording a flaw in a fabric web
First Claim
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1. Method for recording a flaw at a position in a fabric web during a flaw inspection, comprising:
- detecting said flaw at its position in said fabric web;
placing a mark on said fabric web;
giving said mark a designation;
recording said designation;
determining a boundary line surrounding said flaw, said boundary line including a sequence of points, each of said points being defined by an X-value using said mark as a reference point and a Y-value using a side edge of said fabric web as a reference point;
recording said sequence of points;
and storing said sequence of points as positional information correlated with said designation of said mark for use during further processing of said fabric web provided with said placed marks after termination of said inspection of said fabric web.
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Abstract
Apparatus and a method records a flaw in a fabric web during a flaw inspection. The flaw is recorded by a mark placed on the fabric web along with the X- and Y-values of a system of points defining a boundary line around the flaw. The mark and a side edge of the fabric web, respectively, serve as reference points for these X-and Y-values.
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Citations
26 Claims
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1. Method for recording a flaw at a position in a fabric web during a flaw inspection, comprising:
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detecting said flaw at its position in said fabric web; placing a mark on said fabric web; giving said mark a designation; recording said designation; determining a boundary line surrounding said flaw, said boundary line including a sequence of points, each of said points being defined by an X-value using said mark as a reference point and a Y-value using a side edge of said fabric web as a reference point; recording said sequence of points; and storing said sequence of points as positional information correlated with said designation of said mark for use during further processing of said fabric web provided with said placed marks after termination of said inspection of said fabric web. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Inspection machine for recording flaws on a fabric web, comprising:
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an unwinding mechanism for feeding said fabric web to an inspection area, a winding mechanism for winding the fabric web having passed the inspection area, a registering device for the flaw attributed to said inspection area, including; a device for affixing a mark to said fabric web at an X-position, designation means for giving said mark a designation, a marking element displaceable in X- and Y-directions relative to said fabric web to record a sequence of points defining a boundary line of said flaw and surround said flaw, displacement pickup means coupled with said marking element for recording X- and Y-values of said sequence of points, said displacement pickup means using said X-position of said mark and a side edge of said fabric web as reference points for recording X- and Y-values of said sequence of points, input means for receiving said X- and Y-values from said displacement pickup means and a designation of said mark from said designation means, a computer unit with a data memory connected to said input means for correlating said designation of said mark with said X- and Y-values of said sequence of points defining said boundary line and for storing said designation of said mark with said correlated X- and Y-values for use during further processing of said fabric web bearing said placed marks after termination of said inspection of said fabric web. - View Dependent Claims (9, 10, 11, 12, 13)
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14. Method for spreading a fabric web exhibiting flaws, each being identified by a mark, each of said marks having its own designation, comprising:
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spreading a fabric web to a spread-out layer, detecting appearance of said mark, recording an X-position of said mark in said spreadout layer, recognizing said designation of said mark, recalling X- and Y-values of a sequence of points related to said X-position of said mark and a side edge of said fabric web as reference points and stored in correlation with said designation of said mark, said sequence of points defining a boundary line surrounding said flaw, combining said X- and Y-values of said sequence of points to form a position formation of said boundary line of said flaw in said spread-out layer, storing a marker defining pieces to be cut out of said spread-out fabric web, and comparing said position information of said boundary line with said stored marker for said fabric web for deciding whether said boundary line lies within one of said pieces to be cut out. - View Dependent Claims (15, 16, 17, 18)
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19. Fabric spreading machine for a fabric web exhibiting flaws, each being identified by a mark, each of said marks having a designation, comprising:
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a spreading unit with a spreading edge for depositing a spread-out layer of said fabric web, a detector for detection of said marks during spreading, a control system including a computer system and comprising said detector and means for recording an X-position of said detector with respect to said spread-out layer, said control system being designed to recognize said marks by their designation and to determine an X-position of each of said marks with respect to said spread-out layer, said control system further comprising a data memory for stored X- and Y-values of a sequence of points correlated with the designation of each of said marks and defining a boundary line surrounding each of said flaws, said X-and Y-values using as reference points said X-position of each of said marks and a side edge of said fabric web, respectively, and for storing a marker defining pieces to be cut out of said spread-out fabric web, said control system being designed to combine said Xand Y-values of said sequence of points to form position information of said boundary line with respect to said spreadout layer, and to compare said position information of said boundary line and said marker for deciding whether said boundary line lies within one of said pieces to be cut out. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification