The present disclosure provides a method for knotting glass fibers and a spliced glass fiber bundle. The method for knotting glass fibers comprises the following steps of: equally dividing a glass fiber bundle A and a glass fiber bundle B that are to be connected by knotting into n strands, respectively, and marking the strands as A1-An and B1-Bn, respectively, wherein n is a natural number greater than or equal to 2; and, successively knotting and splicing the glass fiber strands A1-An and the glass fiber strands B1-Bn in one-to-one correspondence to form n spliced knots. The method for knotting glass fibers in the present disclosure is simple, easy to operate and applied to the knotting and splicing of various fiber bundles, and can effectively reduce the size of knots formed by knotting fiber bundles. Accordingly, the blockage, entanglement, stoppage and other phenomena during the production can be prevented, the smooth production is ensured, and it is advantageous for continuous production and quality of subsequent products.

The present invention relates to a winding device (1) and a method for winding a frame (7) to produce a fiber material blank (18). For this, a frame (7) is clamped in a clamping device and put into rotation about a rotational axis (5) by a drive (3). According to the invention it is provided that fixing pins (6) are folded down during the passing of a thread (9) to be wound.

Disclosed is a method for producing an optical fiber coil including the following steps: a. symmetrical winding of an optical fiber around a shaft, the winding forming a pattern including a same number N of layers of each half of the optical fiber, one layer including a set of turns of optical fiber and spaces between adjacent turns, the winding forming a sectored arrangement including a regular stacking area including at least one continuous sealing surface between two layers of adjacent turns, and an overlap area where portions of optical fiber linking different turns cross each other; b. infiltration of a glue through an external surface of the overlap area in such a way that the glue infiltrates into the spaces located between adjacent turns in the regular stacking area.

The present invention provides a method for manufacturing a fiber reinforced resin material, the method including an opening step of opening an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting step of heat-setting the opened fiber bundle in the flat state by heating. In addition, the present invention provides an apparatus for manufacturing a fiber reinforced resin material containing a plurality of fiber bundles and a resin, the apparatus including an opening section that opens an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting section that heat-sets the opened fiber bundle in the flat state by heating.

A fiber winding device includes a spool assembly having a plurality of bobbins provided around a spiral wire in a circumferential direction to form a spool surface, a guide ring provided at a front part of the center of the spool assembly in a direction oblique to the spool surface, and a wire transfer unit for transferring the spiral wire to pass through the guide ring. The spiral wire is disposed to perpendicularly pass through the center of the guide ring. The spool assembly is disposed in a direction oblique to the wire, and fibers from the plurality of bobbins are wound on the spiral wire along the guide ring. In addition, by sequentially arranging a plurality of fiber winding devices along the spiral wire, fibers in multiple layers can be wound on one spiral wire sequentially and continuously.

A fiber catching device includes a base having an inboard portion and an outboard portion, an external wall extending upwardly from the inboard portion of the base, an outboard hook extending upwardly from the outboard portion of the base and extending to a height above the external wall, and at least one receiver disposed between the external wall and the outboard hook. In one variation, a plurality of protrusions are disposed on the external wall and define a plurality of gaps there between.

Disclosed is a method for producing an optical fiber coil including the following steps: a. symmetrical winding of an optical fiber around a shaft, the winding forming a pattern including a same number N of layers of each half of the optical fiber, one layer including a set of turns of optical fiber and spaces between adjacent turns, the winding forming a sectored arrangement including a regular stacking area including at least one continuous sealing surface between two layers of adjacent turns, and an overlap area where portions of optical fiber linking different turns cross each other; b. infiltration of a glue through an external surface of the overlap area in such a way that the glue infiltrates into the spaces located between adjacent turns in the regular stacking area.

A method for producing yarns separated from reinforcing fiber strands including a process of intermittently separating fibers of the reinforcing fiber strands.

A guiding device for a material to be wound for a winding machine includes at least one blade guiding unit comprising two fiber guiding blades, which are rotationally drivable in opposite directions and are configured for feeding a material to be wound to a carrier of material to be wound of the winding machine, and the at least one blade guiding unit is configured for conveying a material to be wound which is implemented of inorganic fibers. The blade guiding unit comprises at least one fiber guiding blade tip, which has an at least semi-oval exterior geometry, and the blade guiding unit comprises at least one fiber directing element, which is implemented at least partly of an inorganic-fiber compatible material and comprises at least one rounded fiber guiding edge.

A method for splicing two bundles (1, 2) of multifilament textile fibers comprises: inserting an end portion of a first bundle (1) into a first end of a heat-shrinkable sheath (10) and an end portion of a second bundle (2) into a second end of the sheath, axially opposite the first end, until the ends of the end portions of the two bundles are facing each other; inserting a curable organic material inside the sheath (10) in a space separating the end portions of the bundles (1, 2); heating a portion of the heat-shrinkable sheath (10) surrounding a joining portion (9) to a predetermined temperature; curing the curable organic material; and removing the sheath (10).