Composite fiber reinforced polymer (FRP) rebar preparation device

Abstract

The invention provides a composite fiber reinforced polymer (FRP) rebar preparation device which comprises a yarn feeding device, an impregnation device, a forming device, a heating curing device, a traction device, a cutting device and a length control device. Relative to the prior art, the preparation device has substantive characteristics and progress, particularly, yarn pressing rolling shafts and yarn threading holes are arranged in the yarn feeding device of the composite FRP rebar preparation device, so that fiber bundles are enabled to be in a tension state, and different fiber bundles are prevented from knotting and rubbing; through the adoption of the impregnation device, the fiber bundles are fully and uniformly impregnated, the coating amount is small, the fiber content of a composite FRP rebar is increased, and the standard deviation of the mechanical performance of the composite FRP rebar is reduced; through the adoption of the forming device, the distribution uniformity of the fiber bundles in thermosetting resin is greatly improved; through the adoption of the heating curing device, the curing temperature is enabled to be stable, and the production is facilitated; and through the adoption of a buzzer of the length control device, operators can be reminded to carry out cutting, the FRP rebar is prevented from being over-roasted, and the continuity and safety of production are improved.

Description

technical field [0001] The invention relates to a preparation device for fiber reinforced polymer (FRP) tendons, in particular to a preparation device for composite FRP tendons used in civil engineering. Background technique [0002] At present, reinforced concrete structure has become the most important structural form in structural engineering, and is widely used in construction engineering, bridge and traffic engineering, water conservancy and harbor engineering, underground and special structural engineering. However, a large number of engineering structures are in harsh environments, which makes steel bars prone to corrosion, resulting in durability problems of reinforced concrete structures, affecting their function and service life. Fiber Reinforced Polymer (FRP) bars have the advantages of light weight, high strength, corrosion resistance, low relaxation and good fatigue resistance. Using FRP bars as longitudinal bars, abdominal bars or prestressed bars in concrete s...

AI Technical Summary

Problems solved by technology

However, there are many problems that need to be solved urgently in the existing FRP bar preparation equipment. For example, the mechanical properties and surface morphology of the produced FRP bars change greatly, and the quality is unstable; the liquid resin drips and solidifies and accumulates in the heating tube, which affects the production process; Lack of control technology for producing FRP bars of predetermined length; inconvenient production of composite FRP bars, etc.

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