Abstract:
The present disclosure provides a high-efficiency filament helical winding device, which includes a frame body and a plurality of multi-filar guides. The frame body is provided with a through-hole, the plurality of multi-filar guides distributed in a circumference along a center of the through-hole are rotationally connected to the frame body and filament is extended out from each multi-filar guide in the plurality of multi-filar guides, and the frame body is provided with a first driving mechanism that drives each multi-filar guide to rotate.
Abstract:
A transportable system and method for the in situ eccentric manufacturing of reinforced thermoplastic pipelines in continuous lengths up to 10 miles and from 8 to 60 inches in diameter having a rotating frame assembly with a eccentric spools for application of reinforcing tapes and other components to a polyolefin core pipe, and further having a forming machine for cross sectional shape reduction of the reinforced thermoplastic pipelines to facilitate pulling the reinforced thermoplastic pipelines inside a host pipeline. Also provided are continuous monitoring and marking with application of tape in the hoop stress direction and the axial stress direction as well as saturated tape feeding stations for impregnation of the reinforcing tape for in situ curing.
Abstract:
A method of manufacturing a composite profile having a non-circular cross section, comprising the steps of—actuating a string of mandrel sections (1) having a non-circular cross section to move axially in a one way motion through one or more orbital winding stations (3) that are rotationally disposed about to the longitudinal axis of the mandrel in one or more passes,—continuously helically winding in one or more winding stations tape comprising a bundle of parallel longitudinally extending fibres in a thermoplastic matrix material onto the mandrel sections or a previously wound layer to form layers (4) of a wall of a thin walled profile having a closed cross section including at least one planar surface, and—cutting the thin walled profile into profile sections that are carried on one or more mandrel section sections, wherein the layer is consolidated with the previous layer prior to cutting.
Abstract:
A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapour without allowing the passage of liquid water or respiratory gases. The breathing circuit component is the expiratory limb of a breathing circuit.
Abstract:
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.
Abstract:
An aircraft part manufacturing device for automated composite lamination on a mandrel surface of a tool having a rotational axis includes a mechanical supporting structure that supports multiple material delivery heads. The tool is moveable and rotatable relative to the mechanical supporting structure. The mechanical supporting structure provides for axial translation of the material delivery heads relative to the mandrel surface while the mandrel surface is rotated for laying down courses of composite material over the entire mandrel surface of the tool. The position and movement of each of the plurality of material delivery heads is individually adjustable. Arm mechanisms provide motion of each material delivery head in a direction normal to the mandrel surface; rotation about an axis normal to the mandrel surface; circumferential position adjustment in a hoop direction relative to the mandrel surface; and axial position adjustment relative to the other material delivery heads.
Abstract:
A system and method for winding fibers onto an article is disclosed. The system includes a winding station having a controllable speed of rotation. The winding station has at least one fiber bobbin mounted on it. A rotation sensor is rotationally coupled to the winding station. The system includes a conveyor having a controllable speed and which is adapted to move the article axially through the winding station. A speed sensor, adapted to measure an axial speed of motion of the article through the winding station is positioned near the winding station. The system includes a controller adapted to operate the winding station at a rotational speed corresponding to the axial speed of motion, so as to apply the fibers to the article in a predetermined helical pattern. In one example, the helical pattern is held to a lay angle having a tolerance within one-half degree. In the method, the rotational speed of the winding station is adjusted to correspond to the axial motion of the article so that the fibers are wound in a predetermined helical pattern. In one example of the method, the lay angle of the fibers is held to within a tolerance of about one half degree. In another example, the lay angle is selected to correspond to the axial position of the article within the winding station.
Abstract:
An apparatus and method are provided for winding hoop windings onto a cylindrical member which may be a fiberglass tube or a mandrel. Two sequential stations are provided, each of which includes a rotatable drum and a rotatable winding member. Each of these is separately drivable by respective pulleys. The separately driven drum can be wound with filament or filament may be stripped therefrom according to requirement. The associated winding member consists of two funnels between which are positioned a plurality of pulleys, such that the filament can be unwound from the associated drum and applied to the mandrel or tube.
Abstract:
A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component is the expiratory limb of a breathing circuit.