Glass fiber reinforced plastic tubular product pultrusion glue-injection device and glue-injection unit

Abstract

A glass fiber reinforced plastic tubular product pultrusion glue-injection device and a glue-injection unit relate to a device that dips glue solution in pultrusion equipment and leads glass yarn and felt to be compounded and thermoset so as to form continuous sectional materials, wherein a glue solution supply unit and the glue-injection unit are connected through a glue solution conveying pipe in a manner of being capable of injecting the glue solution to the glue-injection unit which is configured in a manner of being capable of connecting with a pultrusion mold. The proposal can realize the work of dipping the glass yarn and felt by injecting the glue solution in a closed mold device and effectively avoid the free volatilization of the glue solution and ensure the stability of viscosity of the glue solution in the whole pultrusion process. The proposal can control the glue solution supply, and the glue-injection mold has strong adaptability and is easier for industrial promotion.

Description

technical field [0001] The invention belongs to the field of pultrusion molding equipment for composite materials, and relates to equipment for thermosetting glass yarn and felt into continuous profiles, in particular to a glue injection device for pultruding glass steel tubes. Background technique [0002] In the known FRP pultrusion molding machine, the glass yarn and the felt are released freely from the creel and the felt frame respectively by the traction mechanism, so that the glass yarn and the felt are dipped in the glue solution through the glue tank, and then passed through the pultrusion tooling frame. The gauze board and the felt sleeve enter the mold after the preforming mold, and the mold is surrounded by the heating sleeve, heated, and the glass yarn felt soaked in the glue is solidified and formed through the inner cavity of the mold, and is compressed by the traction mechanism and drawn out to become a continuous profile pipe. [0003] For example, Chinese p...

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Problems solved by technology

[0005]In the existing pultrusion molding equipment, glass yarn and felt are usually soaked with glue in the open glue tank, and the work will be difficult due to the volatility of the glue. The environment is not environmentally friendly, and it is difficult to guarantee the stability of the glue viscosity during the pultrusion process, which directly affects the product quality; the industry urgently needs the technology that can effectively control the volatilization of the glue to achieve environmentally friendly production

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