Process for making looped textile sleeves having transverse seam

Details Process for making looped textile sleeves having transverse seam Process for making looped textile sleeves having transverse seam

1991-10-29

1993-10-26

Crowder, Clifford D.

Sewing

Special machines

Tube forming

1122623, 112306, 11212127, 226 24, 156137, D05B 3510, D05B 3512, B29C 5336

Patent

active

052556190

ABSTRACT:
In a process and apparatus to automatically make textile sleeves for toothed belts, a continuously fed fabric 4a is cut to obtain a plurality of cloths 7 of predetermined sizes. The cloths 7 are joined together by sewing them along respective edges that are perpendicular to the cut thus forming a continuous textile band 12. The front end 12b of the textile band 12 is locked to a predetermined position after a band moving step is carried out. During the movement, a photoelectric cell 46 and an encoder 28 identify the distance between the front end 12b of the band and the first connecting seam 12a. If this distance is less than a minimum value, the band 12 is cut upstream of the seam 12a and the moving step is repeated. If the distance exceeds the minimum value, the band is formed into a loop 44 of predetermined width. During this step the distance between the last connecting seam 12a and the point of the cut is identified to establish whether the band 12 is to be cut and a sleeve formed with the obtained length 20 or whether it is necessary to modify the width of the loop 44 so as to increase the distance beyond the minimum value.

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