Patent application number | Description | Published |
20080196660 | Resin Impregnating Apparatus - The present invention provides a resin impregnating apparatus which enables a fiber feeding speed to be increased without increasing the size, complicatedness, or costs of the apparatus. A resin impregnating apparatus | 08-21-2008 |
20090038759 | Filament Winding Automated System - The present invention makes it possible to increase production efficiency while reducing costs. A filament winding automated system according to the present invention includes a winding device winding a fiber bundle R paid out from a head portion | 02-12-2009 |
20090065622 | Filament Winding Apparatus - A filament winding apparatus includes a hoop winding device and a helical winding device. The hoop winding device includes a disc-shaped wrapping table, a drive mechanism that rotatably drives the wrapping table, four bobbins supported along a peripheral edge of the wrapping table, and a guide member that moves and guides a fiber bundle fed from the bobbin to a mandrel arranged in an insertion hole of the wrapping table. The bobbin is axially supported in a freely rotatable manner with a chuck of a holder fixed to the wrapping table. A ratchet mechanism, which prevents over-rotation in a fiber bundle feeding direction of the bobbin, is arranged between the holder and the chuck. | 03-12-2009 |
20090065625 | Filament Winding Apparatus - A filament winding apparatus equipped with a transfer mechanism of a terminating end of a fiber bundle using a transfer ring that can be switched from a mandrel after the winding process to a mandrel before the winding process. A cutter cuts a fiber bundle wound around a first transfer ring integral with a mandrel after the winding process and a second transfer ring is moved to the mandrel before the winding process between the first and second transfer rings; and a friction roller positions and holds the second transfer ring when cutting the fiber bundle. The friction roller is pressed and biased against the second transfer ring by a compression spring. | 03-12-2009 |
20090107628 | Resin Adhesion Method and Resin Adhesion Apparatus in Filament Winding Molding - A resin adhesion method and apparatus in an FW molding achieves high speed and facilitates maintenance. A resin is adhered to a fiber by injecting the resin towards a surface of the fiber through a droplet injection device including a plurality of base resin injection nozzles and curing agent injection nozzles. A traveling device travels the fiber with a predetermined opposing spacing with the nozzles. A first path includes a base resin tank that supplies the base resin to the droplet injection device. A second path includes a curing agent tank that supplies the curing agent to the droplet injection device. | 04-30-2009 |
20090121728 | Resin Impregnated Amount Measuring Method and Resin Impregnated Amount Measuring Device in Filament Winding Molding - A resin impregnated amount measuring method and device for accurately and successively measuring an amount of resin impregnated in a fiber in a filament winding molding. An electrostatic capacitance of a fiber impregnated with resin is measured, and an amount of resin impregnated in the fiber is measured based on the measurement result. The fiber impregnated with resin is traveled in a non-contacting manner between two parallel flat plates of an electrostatic capacitance sensor and a change in electrostatic capacitance is measured. The amount of resin impregnated in the fiber may also be measured by irradiating light on the impregnated fiber to determine the image area of, reflectivity of, or distance of the light source from, the fiber. | 05-14-2009 |
20090126875 | Filament Winding Apparatus - A filament winding apparatus efficiently performs a helical winding process in which the winding angle of the fiber bundle differs. A helical winding head includes two guide rings, adjacently arranged along an axis center of the mandrel, and guide tubes arranged at equal intervals along a circumferential direction of the guide rings. The guide rings are switchable between a first state in which phase positions of the guide tubes are matched and a second state in which the phase positions of the guide tubes are evenly shifted in the circumferential direction by a phase switching structure. Tube exits of the guide tubes are arranged close in the first state. | 05-21-2009 |
20090127373 | Filament Winding Apparatus - A filament winding apparatus that efficiently and orderly winds a fiber bundle with respect to a mandrel in a short period of time. A supporting board supports the mandrel, and a helical winding head supplies and guides the fiber bundle towards the mandrel. The helical winding head includes a group of guide tubes radially arranged on a circumferential surface of a guide ring, and a tube operation mechanism that reciprocates the guide tube along a tube axis center direction. The guide tube is moved closer to a circumferential surface of the dome part when the guide tube is facing a dome part of the mandrel such that the distance between the winding position of the fiber bundle and the guide tube at the dome part can be reduced, and the fiber bundle is orderly wound according to an appropriate winding trajectory. | 05-21-2009 |
20090314418 | Filament Winding Apparatus and Method Thereof - A filament winding apparatus includes a control unit, a rotation mechanism that rotates a mandrel, a hoop winding head that performs hoop-winding, and a helical winding head that performs helical-winding. The hoop winding head includes bobbins that feed fiber bundles to the mandrel and a circulation mechanism that circulates the bobbins around the mandrel. The control unit controls the rotation and circulation mechanisms such that the mandrel is rotated and the bobbins are circulated in the same direction during helical-winding. It is not necessary to cut fiber bundles after hoop-winding, and wasted fiber is not fed during helical-winding, thereby increasing economy and productivity. | 12-24-2009 |
20090314872 | Tension Control System For Fiber Bundles in Filament Winding Apparatus - A filament winding apparatus detects that a fiber bundle is likely to break and prevents generation of defective products. The filament winding apparatus applies a prescribed winding tension to the fiber bundle unwound from a fiber bundle feeding package and winds the tension-applied fiber bundle around a mandrel. A tension applying portion applies the winding tension to the fiber bundle at a position that is immediately before a side of the mandrel between the fiber bundle package and the mandrel. A tension sensor detects the tension of the fiber bundle between the fiber bundle feeding package and the tension applying portion. A determination means determines a tension abnormality of the fiber bundle by comparing pre-set reference information with the tension measured value measured by the tension sensor. | 12-24-2009 |
20100032510 | Filament Winding Apparatus - A filament winding apparatus reduces fluctuations in a winding operation by bringing a plurality of guide portions that guide fiber bundles to a liner close to the liner in a winding unit. Each of the guide portions is a tubular member having a guide hole penetrated from a base end to a leading end portion. The leading end portion has a smaller thickness width. Each of the guide portions guides a second fiber bundle to the liner by passing the second fiber bundle from a side of the base end portion to a side of the leading end portion of the guide hole. By rotating each of the guide portions about an axis of the guide portion, and by sliding the guide portions in the radius direction of the liner, the guide portions can be brought close to the liner. | 02-11-2010 |
20120315569 | Filament Winding Method and Apparatus, and Tank - In a filament winding method, while a rotating tank relatively reciprocates in a tank axial direction to a helical winding head, fibers are fed from yarn-feeding sections to the tank. After the tank turns back in the tank axial direction, a large number of fibers are wound around one domed portion and a trunk portion of the tank, and trailing ends of the large number of fibers are located at one end portion of the trunk portion. Then a piece or a small number of fibers are fed from a rotating hoop winding head to the trunk portion, and hoop winding is performed on helical winding layers formed around the trunk portion. Then, at the one end portion of the trunk portion, the large number of fibers pulled from the yarn-feeding sections of the helical winding head are cut off. | 12-13-2012 |
20130068873 | Filament Winding Apparatus - A filament winding apparatus includes a hoop winding device mounted with bobbins that supply a fiber bundle. Each of the bobbins is whirled around a periphery of a liner to wind the fiber bundle around an outer peripheral surface of the liner. The hoop winding device is replaceable with another hoop winding device at a predetermined position. | 03-21-2013 |
20130186996 | Filament Winding Device - A filament winding device that optimizes the interval between adjacent fiber bundle guides includes a plurality of helical heads on which fiber bundle guides moving in the direction that is roughly perpendicular to the rotating axis of a liner are radially disposed; and winds a fiber bundle onto the outer circumference surface of the liner by passing the helical heads while rotating the liner. An interval adjusting means adjusts the interval between a virtual plane (Pf) which intersects with the guiding opening of a fiber bundle guide disposed on one of the helical heads so as to be orthogonal to the liner rotating axis and a virtual plane (Pw) which intersects with the guiding opening of a fiber bundle guide disposed on the other helical head so as to be orthogonal to the liner rotating axis. | 07-25-2013 |
20130193255 | Filament Winding Apparatus - A filament winding apparatus prevents a fiber bundle supplied to a liner from interfering with other fiber bundles and fiber supplying guides. First and second guide units include a plurality of fiber supplying guides arranged radially and extending and contracting in a direction approximately perpendicular to a liner central axis. When a fiber bundle supplied from a first supplying guide of the first guide unit crosses between a second supplying guide of the second guide unit and the liner, the distance from the second supplying guide to the liner central axis is made larger than the distance from the first supplying guide to the liner central axis, and in the reverse case, the distance from the first supplying guide to the liner central axis is made larger than the distance from the second supplying guide to the liner central axis. | 08-01-2013 |
20130200199 | Filament Winding Device - A filament winding device enables fiber bundles to be wound around the outer circumference surface of a liner at equal intervals even when the winding angle of the fiber bundles changes. The filament winding device includes a first helical head on which fiber bundle guides are radially disposed in the periphery of a liner to be transported; and a second helical head which is disposed adjacent to the first helical head and on which the fiber bundle guides are radially disposed in the periphery of the liner The filament winding device also has phase adjusting means for adjusting the phase difference between the fiber bundle guides on the first helical head and on the second helical head in accordance with the angle at which the fiber bundle is wound around the liner. | 08-08-2013 |
20130248637 | Filament Winding Method and Filament Winding Apparatus - A filament winding method performs a hoop winding step including a first step of fixing an end of a fiber bundle to a liner surface at a starting position of hoop winding, a second step of hoop winding the fiber bundle having the end fixed to the liner surface in the first step, a third step of fixing the fiber bundle hoop wound in the second step to the liner surface at an ending position of hoop winding, and a fourth step of cutting the fiber bundle upstream in a fiber bundle supplying direction of the position where the fiber bundle is fixed in the third step. | 09-26-2013 |
20130256447 | Filament Winding Apparatus - A filament winding apparatus that prevents excessive unraveling of a fiber bundle due to variations in the speed at which the fiber bundle is wound includes a hoop winding device having a wrapping table, a bobbin support unit, a braking unit, a slack removal unit, a detector, and a controller. The slack removal unit absorbs slack caused by the difference between winding and unraveling speeds of the fiber bundle. The detector detects whether the amount of slack absorbed is equal to or greater than or is less than, a predetermined amount. When the amount of slack is equal to or greater than the predetermined amount, the controller increases the braking force of the braking unit for braking rotation of a bobbin. When the amount of slack is less than the predetermined amount, the controller reduces the braking force of the braking unit for braking rotation of the bobbin. | 10-03-2013 |
20130306783 | Filament Winding Apparatus - A filament winding apparatus in which a fiber bundle easily passes through a fiber supplying guide. The filament winding apparatus winds a fiber bundle around a liner, and includes a plurality of fiber supplying guides each supplying a fiber bundle to the liner. Each of the fiber supplying guides includes a bottom portion that guides a wide surface of the fiber bundle, side portions respectively disposed along both sides of the bottom portion, and an opening portion formed between the side portions. | 11-21-2013 |
20130320129 | Filament Winding Device - A filament winding apparatus for winding a fiber bundle on the surface of a liner is configured so that the end position of a fiber layer of the dome section of the liner is easily corrected. A control section stores a series of operations for winding the fiber bundle on the liner as winding data including steps, controls a fundamental operation which winds the fiber bundle on the basis of the winding data, and also controls a correction operation which corrects the end position of the fiber layer on the basis of an actual value and a design value when forming a fiber layer by winding the fiber bundle on the dome section of the liner. | 12-05-2013 |
20140263802 | FILAMENT WINDING APPARTAUS - A filament winding apparatus that connects a driven shaft to a driving shaft automatically includes a rotation unit which can rotate a driving shaft | 09-18-2014 |
20140299274 | Filament Winding Method and Filament Winding Apparatus - A filament winding method performs a hoop winding step including a first step of fixing an end of a fiber bundle to a liner surface at a starting position of hoop winding, a second step of hoop winding the fiber bundle having the end fixed to the liner surface in the first step, a third step of fixing the fiber bundle hoop wound in the second step to the liner surface at an ending position of hoop winding, and a fourth step of cutting the fiber bundle upstream in a fiber bundle supplying direction of the position where the fiber bundle is fixed in the third step. | 10-09-2014 |
20140346270 | Fiber Bundle Supply Device - This fiber bundle supply device ( | 11-27-2014 |
20140346271 | BOBBIN UNWINDING DEVICE OF FILAMENT WINDING DEVICE - This bobbin unwinding device ( | 11-27-2014 |
20150034233 | HIGH-PRESSURE GAS TANK PRODUCTION METHOD - The FW technique is employed to suppress a non-fiber-wound space from being left during formation of a fiber layer for reinforcement on a liner. A process of forming a fiber-reinforce resin layer on a liner winds and fixes a winding start end fiber of a resin-impregnated carbon fiber on a fiber fixation flange, which is away from the top of a dome section. The process subsequently forms an innermost helical layer from the winding start end fiber extended from the fixation position and the subsequently fed resin-impregnated carbon fiber. The process subsequently forms an inner hoop layer over the innermost helical layer and cuts the winding start end fiber extended from the fixation position of the fiber fixation flange at a position on the periphery of the top of the dome section, prior to formation of a subsequent second helical layer. | 02-05-2015 |
20150048195 | Filament Winding Device - A filament winding device ( | 02-19-2015 |
20150075702 | Filament Winding Method and Apparatus, and Tank - In a filament winding method, while a rotating tank relatively reciprocates in a tank axial direction to a helical winding head, fibers are fed from yarn-feeding sections to the tank. After the tank turns back in the tank axial direction, a large number of fibers are wound around one domed portion and a trunk portion of the tank, and trailing ends of the large number of fibers are located at one end portion of the trunk portion. Then a piece or a small number of fibers are fed from a rotating hoop winding head to the trunk portion, and hoop winding is performed on helical winding layers formed around the trunk portion. Then, at the one end portion of the trunk portion, the large number of fibers pulled from the yarn-feeding sections of the helical winding head are cut off. | 03-19-2015 |
20150083338 | FIBER BUNDLE PROCESSING DEVICE - A fiber bundle processing device (filament winding device ( | 03-26-2015 |