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Fiberglass-reinforced plastic grid forming method and special forming mold thereof

A molding method and technology of glass fiber reinforced plastics, applied in the technical field of pouring resin to realize molding, can solve the problems of many product bubbles, environmental pollution, labor-intensive, etc., and achieve the effect of eliminating the generation of bubbles, strong process stability, and uniform product quality

Active Publication Date: 2012-06-13
JIANGSU JIUDING NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of this method is that the production process is labor-intensive, and the organic matter in the resin volatilizes to cause environmental pollution. After demoulding, the product has more bubbles, and a lot of manual repair is required.

Method used

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  • Fiberglass-reinforced plastic grid forming method and special forming mold thereof
  • Fiberglass-reinforced plastic grid forming method and special forming mold thereof

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Experimental program
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Effect test

Embodiment Construction

[0014] The structural form of special molding die of the present invention is:

[0015] Upper mold 1, lower mold 2, sealing strip 3, vacuum pump 4, vacuum tube 5, mold cavity 6, mandrel 7, glass fiber bundle 8, resin storage 9, resin tube 10, resin suction port 11, vibration motor 12, suction Vacuum hole 13, sealing ring 14, demoulding top hole 15, formwork 16.

[0016] Such as figure 1 As shown: the forming mold is divided into an upper mold 1 and a lower mold 2, and a sealing strip 3 is pasted on the interface between the upper mold 1 and the lower mold 2.

[0017] In the present invention, the structure of the upper mold 1 is a cover plate; the structure of the lower mold 2 is a mold cavity 6 in which core molds 7 are equidistantly distributed along the latitude and longitude directions. The cross-section of the mandrel 7 is an isosceles trapezoid, which is convenient for demoulding. On one side wall of the lower mold 2 , a resin suction port 11 is provided, and...

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Abstract

The invention discloses a fiberglass-reinforced plastic grid forming method and a special forming mold thereof. The process comprises the following steps of: carrying out manual dry winding on fiberglass yarn bundles under certain conditions, injecting resin to the mold cavity of a mold, and forming. The process is realized by adopting the special forming mold. The special mold mainly comprises an upper mold and a lower mold, wherein a core mold is arranged in the lower mold, a resin inflow hole is arranged on the sidewall of the lower mold, a sealing ring is arranged at a demolding top hole, a vacuumizing hole is arranged at the highest point of the lower mold, the vacuumizing hole is in diagonal arrangement with a resin suction port, and a vibration motor is arranged at the bottom of the mold holder of the lower mold. According to the invention, a method combing vacuumizing with vibrating is adopted, thus the formed grid has good compact effect and the service life of the grid is prolonged; the process adopts a sealed manner, does not discharge volatile substances and is environmentally friendly; and as compared with an opened mold manner for manufacturing the grid, the process has the advantages of greatly saving manpower and reducing labor intensity.

Description

technical field [0001] The invention relates to a manufacturing process of a glass fiber reinforced plastic grid, in particular to the process of winding glass fibers on a mold and pouring resin to realize molding. Background technique [0002] FRP grating is mainly used in fields such as chemical platform, trench cover, architectural decoration, building reinforcement, etc. The traditional production method of FRP grating is to manually wind glass fiber yarn on the mold while manually casting it into the mold when the mold is opened. The resin is manually stepped on, so that the glass fiber is impregnated with the resin and the air bubbles are removed. After reaching a certain thickness, it is heated and solidified for demoulding. The main problems of this method are that the production process is relatively labor-intensive, and the organic matter in the resin volatilizes to cause environmental pollution, and the product has many bubbles after demolding, which requires a lo...

Claims

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Application Information

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IPC IPC(8): B29C70/36B29C33/00
Inventor 崔伯军胡林洪德勇田塨周卫星
Owner JIANGSU JIUDING NEW MATERIAL CO LTD
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