Drawing equipment and method for curvilinear profile pultrusion production based on differential drawing rate

Abstract

The invention discloses curve profile pultrusion production traction equipment and method based on a traction speed differential motion. The equipment comprises multiple slide rails mounted on a frame; the slide rails are arranged at intervals in a fan form; rollers are mounted on the slide rails; the rollers are distributed in two rows; each row of the rollers are arranged along the same sectionof arcs; first traction chucks and second traction chucks are arranged between two rows of the rollers, and move along rails formed by the rollers; the first traction chucks are positioned in outletsof curing molds; in the moving process of the traction chucks, through ejecting speed differential motions of jacks and limitations of the rollers, the traction chucks are rotated in a planar mode along round curves; and meanwhile, through movement of the rollers on the slide rails, the radiuses of the round curves are adjusted to continuously produce bent profiles with different curvature radiuses so as to realize needed curve profiles formed by multiple round curve profiles. The production equipment is simple and convenient, and is suitable for pultrusion production of bent curve profiles with different types.

Description

technical field [0001] The invention belongs to the field of fiber-reinforced composite material structures, and in particular relates to a traction device and method for pultrusion production of curved profiles based on differential traction speed. Background technique [0002] Fiber Reinforced Polymer (FRP, Fiber Reinforced Polymer) has been widely used in aviation, aerospace, shipbuilding, automobile, chemical, medical and mechanical industries since its appearance in the 1940s. In recent years, FRP has become a new type of structural material for civil engineering due to its advantages of high strength, light weight, and corrosion resistance. Its application forms are various. In addition to the mature reinforcement and repair technology of FRP used in concrete structures or the replacement of reinforced concrete structures with FRP bars, the application of FRP profiles in structures has also attracted increasing attention from the engineering community. [0003] At pre...

AI Technical Summary

Problems solved by technology

However, the traditional pultrusion production process is only suitable for the production of linear profiles with different cross-sections. With the gradual promotion of the application of FRP profiles in the field of civil engineering structures, the curved FRP profiles are gradually getting attention, which requires the traditional linear profiles. Based on the improvement of the pultrusion production process, the curved FRP profiles can be produced in the factory, so as to better promote the application of FRP profiles

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