Patent application number | Description | Published |
20080302483 | Motorized Cut and Feed Head - A motorized head for applying fiber composite material to an application surface includes a drive roll and a backup roll for feeding fiber composite material toward the application surface, a compaction roll for pressing fiber composite material onto the application surface, and a restart pinch roll assembly located between the drive roll and the compaction roll for driving fiber composite material received from the drive roll to the compaction roll. The drive roll nip between the drive roll and the backup roll forms a drive zone that grips and drives the composite material, a clamp zone that prevents movement of the composite material after it has been cut, and a free zone that allows composite material to be freely pulled through the head. Two cutters mounted on the drive roll mesh with a single anvil on the backup roll to cut the composite material to the desired length. | 12-11-2008 |
20110315324 | TOW EJECTOR FOOT FOR A FIBER PLACEMENT HEAD - A motorized head for applying fiber composite material to an application surface includes a drive roll assembly for applying fiber composite material to an application surface. The drive roll assembly includes a drive roll and a backup roll and a drive roll nip formed between the drive roll and the backup roll. At least one cutter is mounted on the drive roll for cutting fiber composite material, and an ejector mechanism is mounted on the drive roll behind the cutter mechanism. The ejector mechanism positively displaces the leading end of the cut tow material away from the surface of the drive roll to ensure that the cut tow material does not misfeed as it approaches the fiber path chute downstream from the cutter. | 12-29-2011 |
20120036977 | CUTTER AND ANVIL ARRANGEMENT FOR A FIBER PLACEMENT HEAD - A motorized head for applying fiber composite material to an application surface includes a drive roll assembly for applying fiber composite material to an application surface. The drive roll assembly includes a drive roll and a backup roll and a drive roll nip formed between the drive roll and the backup roll. At least one cutter is mounted on the drive roll for cutting fiber composite material, and an anvil is mounted on the backup roll to provide a shear surface for the cutter blade. | 02-16-2012 |
20120222810 | REVERSING FIBER PLACEMENT HEAD - A reversing fiber placement head that is capable of bidirectional fiber placement on an application surface includes a feed mechanism for delivering fiber along two feed paths that are in a V-shaped orientation relative to one another. A pressure tip assembly including a compaction roller receives fiber from the two feed paths and applies the fiber to an application surface. A shifting mechanism shifts the pressure tip assembly from a first position on the fiber placement head to a second position on the fiber placement head to move the compaction roller along a linear path relative to the fiber placement head, allowing the compaction roller to change its direction of rotation in order to apply fiber to the application surface in opposite directions. | 09-06-2012 |
20130056575 | FIBER PLACEMENT AUTO SPOOL LOADER - An apparatus for loading spools into a creel of a fiber placement machine that is used to charge a mold includes a creel loader and a spool magazine carried by the creel loader. At least one loader mandrel in the spool magazine receives full spools and transfers the full spools to the creel of the fiber placement machine. | 03-07-2013 |
20130142898 | FIBER DELIVERY SYSTEM FOR COMPOSITE PART MANUFACTURE - A gantry mounted fiber placement machine has a creel and a head with a compaction roller for applying fiber to a mold or tool. The fiber placement machine has 6 axes of motion and 5 axes of motion between the creel and the head. The machine has a gantry that moves in the X-axis, a horizontal gantry beam that is parallel to the Y-axis, and a creel that moves with the gantry in the X-axis. The machine has a head that moves in the Y-axis parallel to the floor and across the gantry beam, and in the Z-axis perpendicular to the X and Y-axes. The head swivels in the I-axis as it rotates about the X-axis, in the J-axis as it rotates about the Y-axis, and in the K-axis as it rotates about the Z-axis. | 06-06-2013 |
20140202640 | COMPOSITES SYSTEM WITH DOCKABLE HEADS - A composites lamination system uses a six-axis positioner and multiple removable heads for applying composite material to a tool. The six-axis positioner has a gantry and a wrist. The gantry has two spaced uprights that support a crossbeam that is movable in the X-axis. A workzone containing a tool is positioned between the two spaced uprights. A movable column is supported on the crossbeam, and is movable relative to the crossbeam in the Y-axis and the Z-axis. A wrist mounted on the column rotates around an I-axis parallel to the X-axis, around a J-axis parallel to the Y-axis, and around a K-axis parallel to the Z-axis. A replaceable head is mounted on the wrist so that the gantry and the wrist provide six axis of motion for the replaceable head, and removal of the head from the wrist allows the six axis of motion to remain with the positioner. | 07-24-2014 |
20140238612 | DEVICE FOR FABRICATING A COMPOSITE STRUCTURE - A device for fabricating a composite structure comprises a multi-axis positioner and an attached end effector comprising an integrated head and creel. The head has a clamp, cut and restart mechanism and a compaction roller with a rotary axis. The creel has a prismatic shape with a coupling device on the top of the creel for attachment to the multi axis positioner and a centerline which passes through the center of the creel and intersects the axis of rotation of the compaction roller. A composite placement head is attached to the bottom of the creel. A plurality of composite material supply spools are mounted on the sides of the creel and face outward from the creel. A plurality of rollers are mounted on the outside surface of the creel for directing the composite material from the supply spools to the fiber placement head. | 08-28-2014 |