摘要:
A quilting machine has at least one needle and looper set for forming chain-stitched patterns on a thick multilayered material such as a mattress ticking, preferably a panel of the continuous web clamped stationary on a frame. The stitch forming elements are mounted on separate heads that move independently transversely relative to the panel on a bridge that moves longitudinally relative to the panel. The bridge is longitudinally moved by a servo and the heads are transversely moved on the bridge by separate linear servos. The needle and looper are each driven by a linear servo having an armature to which the element is directly fixed to reciprocate without intervening mechanical linkage assemblies. A controller drives the servos to chain-stitch patterns, differentially move the heads transversely to account for transverse needle deflection and to phase the needle and looper to compensate for longitudinal needle deflection. The controller determines or predicts needle deflection, either based on stored empirically determined data or optical sensing, and generates deflection compensation signals to drive the servos.
摘要:
A quilting machine has at least one needle and looper set for forming chain-stitched patterns on a thick multilayered material such as a mattress ticking, preferably a panel of the continuous web clamped stationary on a frame. The stitch forming elements are mounted on separate heads that move independently transversely relative to the panel on a bridge that moves longitudinally relative to the panel. The bridge is longitudinally moved by a servo and the heads are transversely moved on the bridge by separate linear servos. The needle and looper are each driven by a linear servo having an armature to which the element is directly fixed to reciprocate without intervening mechanical linkage assemblies. A controller drives the servos to chain-stitch patterns, differentially move the heads transversely to account for transverse needle deflection and to phase the needle and looper to compensate for longitudinal needle deflection. The controller determines or predicts needle deflection, either based on stored empirically determined data or optical sensing, and generates deflection compensation signals to drive the servos.
摘要:
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 stitch forming elements include a needle and a looper mounted on separate heads that are independently moveable on a bridge transversely relative to the panel, which is moveable longitudinally relative to the frame. The bridge is longitudinally moved by a servo and the heads are transversely moved on the bridge by separate servos. The stitching elements on each head are driven by separate servos. A controller drives the servos to chain stitch patterns and differentially move 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 determines or predicts needle deflection. It may store empirically determined data and respond to control signals and/or sensors to determine or predict deflection and to calculate the needle deflection compensation, in response to which it generates deflection compensation signals to drive the servos. Infrared, LED or magnetic deflection sensors are preferred, but many other types are or will become available that will be suitable.
摘要:
A multi-needle quilting machine (10) and method in which provided bridges (21,22) are provided having selectively operable stitching element pairs (90). Either the material or the bridges or both may be moved relative to the frame. Control schemes are provided to quilt continuous patterns, discrete patterns, linked multiple patterns, 360 degree patterns, closely spaced patterns. A plurality of small presser feet (158) are provided, each for one or more needles (132), with a wide spacing for material passage between the needle and looper plates. Combinations of intermittent and continuous feed and feed transition are employed during tack sequence sewing and other direction reversals in sewing, as well as double needle guards and thread deflection.
摘要:
A multi-needle quilting machine (10) and method are provided, in most embodiments of which needles (132) reciprocate horizontally through material (12) supported in a vertical quilting plane (16). Two or more bridges (21,22) are provided having separate motion control. Each bridge (21,22) has a row of selectively operable stitching element pairs (90), which may be fixed to or transversely moveable on the bridges (21,22). Either the material or the bridges may be moved relative to the frame. The bridges (21,22) each move transversely and vertically with the stitching elements (90) on each bridge can operate at different speeds. Each of the needle drives (25) and, in some embodiments the looper drives (26), can be selectively activated and deactivated. Control schemes are provided to quilt continuous patterns, discrete patterns, linked multiple patterns, 360 degree patterns, closely spaced patterns. A plurality of small presser feet (158) are provided, each for one or more needles (132). Looper adjustment, thread cutting and thread tension control are provided, as well as other features set forth in the specification. Thread tail wipe and tuck techniques, missed stitch avoidance, stitching element timing, tacking sequences, and other features are disclosed.
摘要:
An apparatus for feeding and slitting soft goods has multiple slitting systems with respective slitting blades mounted on a cross rail. A slitting blade positioning system is movable parallel with the cross rail and operable to move slitting systems along the cross rail. A material feed motor is connected to a feed roller and operable to move the soft goods past the slitting system. A control is first operable to cause the slitting blade positioning system to move identified slitting systems to desired positions on the cross rail. Thereafter, the control operates a drive shaft motor to rotate slitting blades mounted on the drive shaft and the material feed motor, thereby moving the soft goods past the slitting blades.
摘要:
An apparatus for feeding and slitting soft goods has multiple slitting systems with respective slitting blades mounted on a cross rail. A slitting blade positioning system is movable parallel with the cross rail and operable to move slitting systems along the cross rail. A material feed motor is connected to a feed roller and operable to move the soft goods past the slitting system. A control is first operable to cause the slitting blade positioning system to move identified slitting systems to desired positions on the cross rail. Thereafter, the control operates a drive shaft motor to rotate slitting blades mounted on the drive shaft and the material feed motor, thereby moving the soft goods past the slitting blades.
摘要:
An apparatus for feeding and slitting soft goods has multiple slitting systems with respective slitting blades mounted on a cross rail. A slitting blade positioning system is movable parallel with the cross rail and operable to move slitting systems along the cross rail. A material feed motor is connected to a feed roller and operable to move the soft goods past the slitting system. A control is first operable to cause the slitting blade positioning system to move identified slitting systems to desired positions on the cross rail. Thereafter, the control operates a drive shaft motor to rotate slitting blades mounted on the drive shaft and the material feed motor, thereby moving the soft goods past the slitting blades.
摘要:
An apparatus for feeding and slitting soft goods has multiple slitting systems with respective slitting blades mounted on a cross rail. A slitting blade positioning system is movable parallel with the cross rail and operable to move slitting systems along the cross rail. A material feed motor is connected to a feed roller and operable to move the soft goods past the slitting system. A control is first operable to cause the slitting blade positioning system to successively move slitting systems to desired positions on the cross rail. Thereafter, the control operates a slitting blade motor to rotate slitting blades and the material feed motor, thereby moving the soft goods past the slitting blades.
摘要:
An apparatus is provided for feeding and slitting mattress covers, quilts and other soft goods supported on a table. The apparatus has a first slitting wheel rotatable by a motor. A second slitting wheel is rotatable by the motor and contacts the first slitting wheel to provide a cutting action. The apparatus further includes a conveyor operable by the motor for conveying the soft goods past the slitting wheels, and a compression assembly having an actuator, a swing arm, and wheels for compressing the soft goods and holding the soft goods against the conveyor to preventing slippage or twisting.