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Twice mold pressing production method for SMC mold pressing air duct

A production method and secondary molding technology, which is applied in the field of cooling towers, can solve the problems of environment and personnel influence, excessive dust, long production cycle, etc., and achieve the effect of improving strength, ensuring structural strength and high strength

Active Publication Date: 2019-09-24
江苏海鸥冷却塔股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its shortcomings are also obvious. The degree of mechanization is low, the production cycle is long, and it is labor-intensive production. The strength and quality of the product structure are determined by the proficiency of the workers.
FRP resin has strong volatility, and there will be more dust during FRP processing, which will have a certain impact on the environment and personnel

Method used

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  • Twice mold pressing production method for SMC mold pressing air duct
  • Twice mold pressing production method for SMC mold pressing air duct
  • Twice mold pressing production method for SMC mold pressing air duct

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Please combine figure 1 , 2 , Shown in 5 and 6, a kind of SMC molded blower cylinder twice molding production method, its steps are:

[0029] Filler primary molding: place the filler 2 on the filler mold, the surface of the filler 2 is covered with a certain thickness of SMC sheet, and molded by a press to obtain the primary molded filler 2; wherein, the filler mold is Filler mold reinforcing rib grooves are provided for molding positioning reinforcing ribs 4, and the positioning reinforcing ribs 4 are located on both sides of the obtained primary molded filling 2; the shape of the filling 2 at this time is Figure 6 structure shown.

[0030] Secondary molding of the filler: place the filler 2 obtained by the primary molding on the fan cylinder mold, and accurately position and pave the The SMC material is subjected to secondary molding with a press to obtain an SMC molded air duct. The shape of the formed SMC molded air duct is figure 1 As shown in the structure, ...

Embodiment 2

[0037] Such as Figure 1-6 As shown, a SMC molded air cylinder is formed by connecting and combining several air cylinder bodies 1. The cross section of the air cylinder body 1 is in the shape of a sine wave. The air cylinder body 1 includes a diffuser section 11 from top to bottom, a rotating plane 12 and contraction section 13; wherein, the sine wave groove on the side of the air cylinder body 1 at the rotation plane 12 is provided with a filling 2, and the outside of the filling 2 is provided with the air cylinder at the rotation plane 12 The body 1 is integrally connected to the filling plane 20; the air duct body 1 and the filling plane 20 are molded structures of sheet molding compound, and the filler 2 is insert molded and fixed between the air duct body 1 and the filling plane 20 between.

[0038] Further, the filler 2 is surrounded by an inner liner 29 .

[0039] Further, each side and four corners of the air duct body 1 are provided with rounded corners.

[0040] ...

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Abstract

The invention discloses a twice mold pressing production method for an SMC mold pressing air duct. The twice mold pressing production method for the SMC mold pressing air duct comprises the steps that a filler is subjected to primary mold pressing, specifically, the filler is placed on a filler mold, an SMC sheet with a certain thickness coats the surface of the filler, and mold pressing forming is carried out by virtue of a press, to obtain the primarily-mold-pressed filler, wherein the filler mold is provided with a filler mold reinforcing rib groove for mold pressing positioning reinforcing ribs, and the positioning reinforcing ribs are positioned on the two sides of the obtained primarily-mold-pressed filler; and the filler is subjected to secondary mold pressing, specifically, the filler obtained through the primary mold pressing is placed on an air duct mold, the positioning reinforcing ribs are embedded into air duct mold reinforcing rib grooves formed in the air duct mold for accurate positioning treatment, SMC materials are paved, and secondary mold pressing forming is carried out by using the press, to obtain the SMC mold pressing air duct. The structural strength of product forming is improved, and the yield of product production is ensured.

Description

technical field [0001] The invention relates to the field of cooling towers, in particular to a method for producing an SMC molded air cylinder. Background technique [0002] Conventional FRP air ducts are made of glass fiber and resin materials for manual hand lay-up, and the surface of the air duct is treated with paint or gel coat to ensure surface gloss. [0003] The conventional hand lay-up process is characterized by wet resin molding, simple equipment, low cost, and a whole product of more than 10m can be pasted at one time. However, its shortcomings are also obvious. The degree of mechanization is low, the production cycle is long, and it is labor-intensive production. The strength and quality of the product structure are determined by the proficiency of the workers. FRP resin has strong volatility, and there will be more dust during FRP processing, which will have a certain impact on the environment and personnel. Contents of the invention [0004] In view of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/46B29C70/34
CPCB29C70/345B29C70/46
Inventor 包冰国周广砚李永
Owner 江苏海鸥冷却塔股份有限公司
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