Plate thickness self-adaption adjustable RTM mold and plate preparation method

A self-adaptive, mold technology, applied in the field of composite product molding, can solve problems such as unreasonable position design of glue injection holes and vent holes, inability to produce composite material sheet products, affecting product quality, etc., to reduce product defects, The effect of shortening filling time and improving product quality

Inactive Publication Date: 2017-07-11
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cavity height of the mold cannot be adjusted, it is impossible to produce composite material sheet products of different thicknesses; the location of the glue injection hole and the vent hole is unreasonably designed, resulting in defects such as dry spots and air bubbles in the product, which will seriously affect the product quality

Method used

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  • Plate thickness self-adaption adjustable RTM mold and plate preparation method
  • Plate thickness self-adaption adjustable RTM mold and plate preparation method
  • Plate thickness self-adaption adjustable RTM mold and plate preparation method

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Embodiment 1

[0046] The present invention provides a self-adaptive and adjustable RTM die of sheet material thickness, and its structure is as follows Picture 1-1 , Figure 1-2 , diagram 2-1 , Figure 2-2 , image 3 with Figure 4 Shown, including:

[0047] Roller 1, frame 2, cylinder 3, ejector plate 4, carrying plate 5, lower template 6, screw 7, spring 8, push rod 9, PTFE sheet 10, main sealing ring 11, auxiliary sealing ring 12, Handle 13, fastening bolt 14, upper template 15, gas spring 16, heating channel 17, and flow channel 18.

[0048] Such as Picture 1-1 with Figure 1-2 As shown, the frame 2 is used to carry the weight of the entire RTM mold and to fix related parts of the RTM mold. In order to facilitate the movement, a roller 1 is provided at the bottom.

[0049] The upper template 15 is connected with the frame 2 by a gas spring 16 on one side, and is hingedly connected with the frame 2 on the other side. The upper template 15 is a flat plate, and a handle 13 is provided on one ...

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Abstract

The invention relates to a plate thickness self-adaption adjustable RTM mold and a plate preparation method. A groove is formed in the middle part of a lower template (6); after an upper template (15) is closed with the lower template (6), the upper template (15) and the lower template (6) form a molding cavity in the groove; a channel for moving a push rod (9) up and down is formed in the bottom of the groove; a molding cavity height control plate is put in the molding cavity; an extension rod of an extension device is connected with an ejection plate (4); the ejection plate (4) is connected with the push rod (9); the push rod (9) is sleeved with a spring (8); the lower end and the upper end of the spring (8) respectively butt against the ejection plate (4) and the lower template (6); and the push rod (9) can linearly move in the channel formed in the bottom of the groove of the lower template (6). The plate thickness self-adaption adjustable RTM mold can realize a function of manufacturing multi-thickness composite material plate products, is liable to open, reduces the product defects, and improves the product quality.

Description

Technical field [0001] The invention relates to the field of composite material product molding, in particular to a RTM (Resin Transfer Molding, resin transfer molding) mold with self-adaptively adjustable sheet thickness and a sheet preparation method. Background technique [0002] At present, in the RTM process, mold design and preparation are important factors that affect the RTM process, which directly affect the dimensional accuracy of the product, the resin filling path, and the filling time, thereby affecting the internal quality of the composite material. At the same time, the quality of the RTM mold is also It is directly related to product quality, production efficiency and mold life. [0003] A traditional RTM mold is a semi-rigid mold in which fiber reinforcement is laid, and the upper mold is a flexible vacuum bag film. When using the RTM mold to prepare a product, a molded composite product is obtained by vacuum pressing. Because this kind of RTM mold only has a fle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54
CPCB29C70/48B29C70/54
Inventor 孙光永童少尉邓茗刘兴隆李光耀
Owner HUNAN UNIV
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