JPS6139274B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for joining two fibers together, particularly for joining glass rovings, glass yarns, etc.

Glass fibers are used in large quantities as reinforcing materials in reinforced plastics and reinforced cement. There is a method for molding reinforced plastics and reinforced cement by continuously cutting glass fibers and simultaneously spraying them with the plastic or cement. In this method, work is performed continuously over a long period of time.

For example, when glass fibers are pulled out from the inside of a glass roving and cut while being sprayed with plastic to form a reinforced plastic product, each time a roll of roving is completed, the molding operation is stopped and a new glass roving is removed. Searching for an outlet for the fibers and continuing the work again is inefficient. By sequentially joining the final end of the glass roving and the end of the drawer opening of the next roving, the molding operation can be carried out without interruption. However, if a hard lump of knots forms where the glass fibers are joined, and the lump remains even after cutting the glass fibers into short lengths, not only will the reinforcing effect be reduced, but the lump will also cause the reinforced plastic product to become stiffer. Protrusions may appear on the surface of the
Significant loss of product value. Therefore, the joints of glass fibers do not easily unravel even when stretched, but they must be dispersed when cut into short lengths so that no lumps of knots remain.

The present invention provides a method for joining glass fibers that meets these requirements.

This will be explained below with reference to the drawings.

The last end 1 of one glass roving is divided into divided ends 2 and 3. Split ends 2 and 3
Make a loop by crossing each other as you would when tying a furoshiki or a string, and thread one of the crossed split ends through the loop so that it is entwined with the other end. That is, in the figure, the split end 2 is overlapped and crossed in front of the split end 3, the split end 2 is once turned to the rear of the split end 3, and the split end 2 is twisted around the split end 3 while being inserted into the ring. , and bring it again to the front of the split end 3.
Keep the ring as it is.

Pass the end 11 of the drawer opening of the other glass roving 10 twice through the loop made by the split ends 2 and 3, bundle the split ends 2, 3 and the end 11 together, and then A loop is made on the roving 10 side of the section 11, the three bundled ends are passed through the loop, and the roving 10 side of the end section 11 is pulled and tightened.

In the method described above, the ends of the glass fibers are entwined with each other, so that when cut into short pieces, they are easily dispersed and no knotted lumps remain.

[Brief explanation of the drawing]

The figure is an explanatory diagram showing the method of the present invention.

Claims (1)

[Claims] 1 In the method of joining two fibers together, the tip of one fiber is split into two, the ends of the split fibers are crossed with each other to form a loop, and one split end is entwined with the other. then pass the tip of the other fiber through this loop twice and bundle it together with the two split ends; A method of joining two fibers together by forming a ring with the fibers and passing the ends of the three bundled together through this ring.