Fiber axial zero-degree angle laying winding machine and pipeline preparation method

Abstract

The invention belongs to the technical field of winding machines, and discloses a winding machine for laying fibers at a zero-degree angle in the axial direction and a method for preparing pipes. Its main technical features are: it includes a headstock, a tailstock and a main shaft, a pipe die is arranged on the main shaft, and the main shaft is connected with the main shaft motor; a winding mechanism is arranged on one side of the main shaft, and an axial laying trolley is arranged on the other side of the main shaft. , A wire cloth ring fixed with the axial laying trolley is sleeved on the pipe mold, a plurality of radial guide wire holes are evenly arranged on the wire cloth ring along the circumferential direction, and the head card wire is fixed by bearings on both sides of the pipe mold The front and rear card wheels are respectively provided with a front card ring and a rear card ring on the radial outer side of the front card wheel and the rear card wheel, and a cutting mechanism is arranged on the axially laid trolley. An axial strip-shaped through seam is arranged on the wire loop on one side of the winding trolley. The axial fibers are evenly distributed around the pipe mold through the wire cloth ring, and a layer of axial fibers can be evenly laid on the outside of the pipe mold by moving once, with uniform laying and high laying efficiency.

Description

technical field [0001] The invention belongs to the technical field of pipeline winding machinery, and in particular relates to a fiber axial zero-degree angle laying winding machine and a pipeline winding method. Background technique [0002] At present, FRP winding is to use a trolley that can reciprocate along the length of the workbench to wind the resin-impregnated fibers on the surface of the mold layer by layer. In the pipeline structure, the fiber is the main force carrier, and the strength of the fiber comes from its Tensile strength, so there is always a certain angle between the fibers arranged in a reciprocating cross and the axial direction, so that the advantages of high tensile strength of the fibers cannot be fully exerted. The hoop winding of the fabric and the cross winding of the fibers are spiral winding. In the process of cross-winding, the smaller the axial angle between the fiber and the pipe mold, the higher the axial strength, usually the minimum ca...

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Problems solved by technology

[0002] At present, fiberglass pipe winding is to use a trolley that can reciprocate along the length of the worktable to wind resin-impregnated fibers on the surface of the mold layer by layer. In the pipeline structure, the fiber is the main carrier of force, and the strength of the fiber comes from its Tensile strength, so there is always a certain angle between the fibers arranged in reciprocating crossing and the axial direction, so that the advantages of high tensile strength of the fibers cannot be fully exerted. The hoop winding is mainly to carry out the fibers or fibers along the surface of the pipe mold The hoop winding of the fabric and the cross winding of the fibers are spiral winding

In the process of cross-winding, the smaller the axial angle between the fiber and the pipe mold, the higher the axial strength, usually at a minimum of 45°. If the angle is smaller than this angle, the glass fiber will slip easily during winding, resulting in Composite products have poor axial strength. If you want to increase the axial strength, you need to add multiple layers of cross winding to increase the axial strength.

Since the axial strength of the composite pipe is mainly provided by the distribution of fibers arranged in the axial direction, the hoop winding without the fibers arranged in the axial direction can only increase the hoop strength, and the cross-wound fibers are also in contact with the axial direction. The fiber is at a certain angle, the fiber cannot bear the linear tension, and cannot directly increase the axial strength. Therefore, if you want to achieve the required axial strength, you need to reciprocate and wind multiple layers, thus increasing the product cost.

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