Mold-free manufacturing equipment and method of use of thermosetting resin moldings

Abstract

The invention discloses non-grinding-tool manufacturing equipment for thermosetting resin molding products. The non-grinding-tool manufacturing equipment comprises a spray head body, and a clamping base, a cushion base, a rotating base and a convex plate are sequentially arranged on the spray head body from top to bottom; a pipe is arranged at the lower end of the spray head body, and the tail end of the pipe is connected with a gas inlet pipe through a high-pressure gas control valve; a thermosetting resin pipe is arranged on the pipe, the other end of the resin pipe is provided with a resin tank, and a resin intake quantity control valve is arranged on the resin pipe. A using method of the equipment comprises the steps that a textile fabric is selected and cut into sheets, and the sheets are sewn into an initial cavity blank; the initial blank is fixedly connected with the clamping base, the cushion base and the rotating base; the initial blank is inflated, and the rotating base is rotated to enable the initial blank to rotate around a spray head rod; and the inner wall of the initial blank is coated with thermosetting resin, gas pressure of the initial blank is kept constant till the resin is adsorbed by the inner wall of the initial blank and cured, and the thermosetting resin molding products are obtained through fine trimming. According to the non-grinding-tool manufacturing equipment for the thermosetting resin molding products and the using method, personalized resin products can be manufactured, the storage space of a grinding tool is saved, the cost is low, surface decoration does not need to be conducted on the molded products, the technological process is simplified, and the production efficiency is high.

Description

technical field [0001] The invention relates to manufacturing equipment and a use method of a thermosetting resin molded article, in particular to a moldless manufacturing equipment and a use method of a thermosetting resin molded article. Background technique [0002] Thermosetting resin refers to a resin that produces chemical changes after heating, gradually hardens and forms, and does not soften or dissolve after being heated. The molecular structure of thermosetting resin is body shape, including most condensation resins. After curing, thermosetting resin, Due to intermolecular crosslinking, a network structure is formed, so it has high rigidity, high hardness, high temperature resistance, non-flammability, and good dimensional stability of products, but it is brittle and its mechanical properties are poor. [0003] Traditional thermosetting resin molding methods mainly include hand lay-up molding, compression molding, lamination molding, winding molding, resin transfer...

AI Technical Summary

Problems solved by technology

The disadvantages of hand lay-up are: relying on the skills of the operator, the product quality is scattered, the production efficiency is low, the sanitary conditions are poor, the product performance stability is poor, and the labor intensity is high.

During the implementation of the resin transfer molding process, since the process of impregnating fibers with resin is affected by various factors such as temperature and pressure and is difficult to control, the products often have defects, and the defects of the products are usually classified into three categories, namely, air bubbles , fiber slippage and dry spots, in addition, the mold cost of the resin transfer molding process is relatively high, and it is difficult to achieve personalized modeling

The common disadvantages of hand lay-up molding and resin transfer molding are as follows: (1) The mold used in the process must occupy a large storage space, and the molding process is complicated; (2) The resin curing time is long, and the number of molds must be increased to Reaching the expected production efficiency will easily lead to an increase in the production site, thereby increasing the production cost; (3) The formed product must be decorated on the surface, which increases the process flow, thereby reducing the production efficiency and increasing the production cost

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