Web-fed chain-stitch single-needle mattress cover quilter with n

Details Web-fed chain-stitch single-needle mattress cover quilter with n Web-fed chain-stitch single-needle mattress cover quilter with n

1997-04-01

1998-11-10

Nerbun, Peter

Sewing

Special machines

Quilting

11247013, 11247508, 112221, D05B 1100

Patent

active

058328491

ABSTRACT:
A quilting machine is provided having at least one set of single needle stitch forming elements for forming chain stitched patterns on a thick multilayered material such as a mattress cover. The machine is preferably web fed, with a panel of the continuous web being clamped and held stationary on a frame. The elements include a needle and a looper mounted on separate heads that are independently moveable transversely on a bridge, which is moveable longitudinally on the frame. The bridge is longitudinally moved by a servo and the heads are transversely moved on the bridge by separate servos. Each head is driven by a separate servo. A controller drives the servos to chain stitch patterns and differentially moves the heads transversely to account for transverse needle deflection. The drives of the needle and looper are phased to compensate for longitudinal needle deflection. The controller stores empirically determined data and responds to control signals or sensors to determine deflection and calculate the needle deflection compensation from which it generates deflection compensation signals to drive the servos.

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