阅读说明：本技术 一种快速制备hp—rtm预制体设备 (Device for rapidly preparing HP-RTM preform ) 是由 孟凡壹 姚振华 赵立男 于 2020-07-29 设计创作，主要内容包括：本发明提供了一种快速制备HP—RTM预制体设备,包括：支撑台架和若干铝镶块,铝镶块可移除式安装在凹槽内,真空泵固定安装在支撑台架的底架上,真空泵通过多通软管与凹槽内部密封连通,多通软管位于凹槽壁上的借口设置在梯面上方,凹槽的槽壁上设有若干水浴加热通道,水域加热通道设置在梯面的下方覆压橡胶可移除式安装在盖体靠近凹槽的一端端面上,基板上设有产品型凸面,基板上设有沿着产品型凸面外轮廓设置的环形切割槽,具有快速制备预制体的效果。(The invention provides equipment for rapidly preparing HP-RTM preforms, which comprises: support rack and a plurality of aluminium are inserted, removable the formula of inserting of aluminium is installed in the recess, vacuum pump fixed mounting is on the chassis of support rack, the vacuum pump is through leading to hose and recess internal seal intercommunication more, it sets up in the terraced face top to lead to the opening of borrow that the hose is located on the recess wall more, be equipped with a plurality of water bath heating passageways on the cell wall of recess, waters heating passageway sets up and covers in the below of terraced face and press rubber removable install on the lid is close to the one end terminal surface of recess, be equipped with on the base plate and produce the product type convex surface, be equipped with on the base plate along producing the annular cutting groove that the product type convex surface outline set.)

1. An apparatus for rapid fabrication of HP-RTM preforms, comprising: the device comprises a supporting rack and a plurality of aluminum inserts, wherein a groove is formed in the table top of the supporting rack, a step surface is arranged on the inner wall of the groove, the aluminum inserts are removably mounted in the groove, a vacuum pump is fixedly mounted on the bottom frame of the supporting rack, the vacuum pump is hermetically communicated with the inside of the groove through a multi-way hose, a borrowing port of the multi-way hose, which is positioned on the wall of the groove, is arranged above the step surface, a plurality of water bath heating channels are arranged on the wall of the groove, the water bath heating channels are arranged below the step surface, one end of a cover body is rotatably mounted at one end of the supporting rack through a rotating shaft, and a pressure-covering rubber is removably mounted on the;

the aluminum insert comprises: the base plate, be equipped with a plurality of absorption holes on the base plate, be equipped with on the base plate and produce the type convex surface, be equipped with on the base plate along producing the annular cutting groove that the type convex surface outline set up.

2. An apparatus for rapid preparation of HP-RTM preforms according to claim 1 in which the cover is provided with handles on both side walls.

3. The apparatus of claim 2, wherein the rubber matrix is nitrile-40.

4. The apparatus for rapid fabrication of an HP-RTM preform according to claim 3, wherein said adsorption holes are uniformly provided on the base plate and the product convex surface.

5. An apparatus for rapid preparation of HP-RTM preforms according to claim 4, wherein said multi-port hose is provided with at least 5 branch pipes at the end remote from the vacuum pump.

Technical Field

The invention belongs to the technical field of high-pressure resin transfer molding production equipment, and particularly relates to equipment for quickly preparing an HP-RTM preform.

Background

A high-pressure resin transfer molding (HP-RTM) technology is originated in developed countries in Europe, independent design of a preforming mold cannot be completed at home, a preform is placed in a closed cavity mold, resin is infiltrated and permeated by high-pressure injection, and rapid heating and curing are completed, so that the forming technology can realize continuous fiber reinforced composite material products which are produced in an automobile industrialization fast-beat uninterrupted mode. However, a preform needs to be prepared before HP-RTM injection molding, a preform mold is needed for preform molding, the mold is usually split and partitioned, and the preform is prepared by implementing asynchronous pressing in different regions through a press control system, the split and partitioned preform mold has high requirements on the mold design and the press control system, the equipment cost is high, the operation process is complicated, and the production efficiency of the preform is reduced.

Disclosure of Invention

The invention aims to solve the technical problems of complex structure and low production efficiency of the existing HP-RTM preform preparation equipment in the background art, and provides equipment for quickly preparing an HP-RTM preform, which has the effect of quickly preparing the preform.

The technical scheme provided by the invention is as follows:

an apparatus for rapid fabrication of HP-RTM preforms comprising: the device comprises a supporting rack and a plurality of aluminum inserts, wherein a groove is formed in the table top of the supporting rack, a step surface is arranged on the inner wall of the groove, the aluminum inserts are removably mounted in the groove, a vacuum pump is fixedly mounted on the bottom frame of the supporting rack, the vacuum pump is hermetically communicated with the inside of the groove through a multi-way hose, a borrowing port of the multi-way hose, which is positioned on the wall of the groove, is arranged above the step surface, a plurality of water bath heating channels are arranged on the wall of the groove, the water bath heating channels are arranged below the step surface, one end of a cover body is rotatably mounted at one end of the supporting rack through a rotating shaft, and a pressure-covering rubber is removably mounted on the;

the aluminum insert comprises: the base plate, be equipped with a plurality of absorption holes on the base plate, be equipped with on the base plate and produce the type convex surface, be equipped with on the base plate along producing the annular cutting groove that the type convex surface outline set up.

Preferably, the side walls of the two ends of the cover body are respectively provided with a handle.

Preferably, the laminating rubber is made of butyronitrile-40 material.

Preferably, the adsorption holes are uniformly arranged on the base plate and the product-shaped convex surface.

Preferably, one end of the multi-way hose, which is far away from the vacuum pump, is provided with at least 5 branch pipes.

The beneficial effects of the invention are embodied in the following aspects:

1. the vacuum pump and the laminating rubber are mutually matched, and the aluminum insert is provided with a plurality of aluminum inserts which are matched for use, the aluminum inserts can be removably arranged in the grooves, the aluminum inserts with different product type convex surfaces can be replaced according to requirements, and the preparation of preforms with different product shapes is favorably finished.

2. According to the invention, the groove wall of the groove is provided with the water bath heating channel, so that the setting agent can be melted into a glue state in a water bath heating mode, the liquefaction of the setting agent is more stable, the setting effect is favorably improved, and the quality stability of the preform is improved.

3. According to the invention, vacuum is formed in the groove through the vacuum pump, and the rubber is coated and pressed for molding, so that the initial shaping can be completed only by adding raw materials above the aluminum insert according to the process sequence in the using process, and the method is beneficial to improving the production efficiency of the preform compared with the whole-process manual correction and cutting.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a support stand;

fig. 3 is a schematic structural diagram of an aluminum insert.

In the figure: the hot-pressing machine comprises a support rack 1, a cover body 2, a handle 3, a cover pressing rubber 4, an aluminum insert 5, a vacuum pump 6, a multi-way hose 7, a groove 8, a water bath heating channel 9, a step surface 10, a base plate 11, an adsorption hole 12, a product type convex surface 13 and an annular cutting groove 14.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

As shown in fig. 1 to 3, the present invention provides an apparatus for rapidly preparing an HP-RTM preform, comprising: support rack 1 and a plurality of aluminium insert 5, aluminium insert 5 and the supporting use of recess 8, be equipped with recess 8 on the mesa of the support rack 1 of saying, be equipped with trapezoidal surface 10 on the inner wall of recess 8, aluminium insert 5 removable installs in recess 8, is of value to making things convenient for aluminium insert 5 to change, according to the requirement of product to different preforms, can change the aluminium insert 5 that has different product type convex surfaces 13, and vacuum pump 6 fixed mounting is in on the chassis of support rack 1 for with the pressure reduction in the airtight space of recess 8 and 2 formation of lid, can make the cover that is located 2 tops of lid press rubber 4 and cover the pressure to the presswork piece, vacuum pump 6 is through leading to hose 7 and the 8 internal seal intercommunication of recess, adopts to lead to hose 7 more, is of value to improving the efficiency of 6 evacuation of vacuum pump, thereby improves the preparation efficiency of preform. The multi-way hose 7 is positioned on the wall of the groove 8, the borrowing port is arranged above the ladder surface 10, a plurality of water bath heating channels 9 are arranged on the groove wall of the groove 8, circulating hot water can be led into the groove 8 to heat the setting agent in a water bath manner, the stability of the setting agent is improved beneficially, and the quality stability of the prefabricated body is improved, the water area heating channels are arranged below the ladder surface 10, one end of the cover body 2 is rotatably arranged at one end of the support rack 1 through a rotating shaft, and the covering rubber 4 is arranged on the end face of one end, close to the groove 8, of the cover body 2 in a removable manner, so that the covering rubber 4 is beneficial to convenience and environment improvement, the covering rubber 4 is prevented from being used for a long time, the;

the aluminum insert 5 includes: the base plate 11, be equipped with a plurality of absorption holes 12 on the base plate 11, absorption holes 12 can make the thing of suppressing stabilize on base plate 11 after being suppressed, prevents to suppress the thing and take place the dislocation when tailorring, influences the cutting quality of preform. Be equipped with on the base plate 11 and produce the convex surface 13, be equipped with on the base plate 11 along producing the annular cutting groove 14 that the convex surface 13 outline set up of product, the tailorring of the presswork of being convenient for, the presswork after being suppressed can be tailor along annular cutting groove 14, is of value to reducing the error of artifical blind scissors.

The working principle of the invention is as follows: selecting an aluminum insert 5 with a target product type convex surface 13 before use, putting the target aluminum insert 5 into a groove 8, cutting a fiber fabric with a sizing agent according to the size of the aluminum insert 5, stacking and laying the fiber fabric according to a design sequence angle, putting the fiber fabric on the aluminum insert 5 together, closing a cover body 2 to enable a pressing rubber 4 on the cover body 2 to correspond to a notch of the groove 8 and the product type convex surface 13, introducing circulating hot water into the groove 8 through a water bath heating channel 9, heating the sizing agent in a water bath heating mode for 2-5 minutes to enable the sizing agent to be melted into a glue state, closing the circulating hot water, starting a vacuum pump 6 to reduce the pressure in a closed space formed by the groove 8 and the cover body 2 through a multi-way hose 7 to enable the rubber to extrude the fabric into the shape of the molded surface of the aluminum insert 5, opening a cover after 30-50 seconds of negative pressure, trimming the fabric along a cutting groove, finally obtaining the prefabricated body. The device is simple and easy to operate, the amount of manual labor is greatly reduced, the production efficiency is improved, the carrying is convenient, large-scale heating equipment such as a curing furnace and a hot-pressing tank is not needed, and the preparation efficiency of the prefabricated body is favorably improved.

In addition, the handles 3 are arranged on the side walls of the two ends of the cover body 2, so that the cover body 2 can be opened or closed conveniently, the laminating rubber 4 is made of butyronitrile-40, the stability and the high elasticity of the laminating rubber 4 can be guaranteed, and the service life of the laminating rubber 4 can be prolonged. The adsorption holes 12 are uniformly formed in the base plate 11 and the product-shaped convex surface 13, so that the stability of the fabric in the covering and pressing process or after covering and pressing is guaranteed, and the quality of a prefabricated body is not influenced by the dislocation phenomenon. The one end that the vacuum pump 6 was kept away from to the hose 7 that leads to more is equipped with 5 at least branch siphunculuss, is of value to the efficiency that improves the evacuation of vacuum pump 6, and then improves the preparation efficiency of preform.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.