CN201856381U - Compression molding die for prepreg - Google Patents

Compression molding die for prepreg Download PDF

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Publication number
CN201856381U
CN201856381U CN2010206051269U CN201020605126U CN201856381U CN 201856381 U CN201856381 U CN 201856381U CN 2010206051269 U CN2010206051269 U CN 2010206051269U CN 201020605126 U CN201020605126 U CN 201020605126U CN 201856381 U CN201856381 U CN 201856381U
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China
Prior art keywords
die
mold
prepreg
silicone rubber
molding
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CN2010206051269U
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Chinese (zh)
Inventor
朱家强
王滨
罗剑岚
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上海晋飞复合材料科技有限公司
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Abstract

The utility model relates to a compression molding die for prepreg, which comprises an upper die at the upper part, a lower die at the lower part and a middle core die and is characterized in that the core die is a silicone rubber die, wherein the silicone rubber die is of a hollow silicone rubber air bag structure. The compression molding die for the prepreg is used for various composite material products with complex and ingenious structures. The silicone rubber die is nondeformable, has high temperature resistance and acid and alkaline resistance and can be used repeatedly; in addition, the silicone rubber die has low cost and low shrinkage rate and is easy to demould. The molded composite material products have better interlayer combination at the lateral sides and have more attractive appearance.

Description

预浸料模压成型模具 Prepreg molding die

技术领域 FIELD

[0001 ] 本实用新型涉及一种成型模具,尤其是指一种用于预浸料模压成型的模具。 [0001] The present invention relates to a mold, particularly to a prepreg for molding a mold. 背景技术 Background technique

[0002] 与传统的金属材料相比,复合材料拥有众多优异的性能,例如质量轻、比强度高、 良好的尺寸稳定性、优秀的化学稳定性等,这些优良的性能使得其应用范围越发广泛,制作工艺也趋于成熟。 [0002] Compared with the conventional metallic materials, composite materials have many excellent properties such as light weight, high strength, good dimensional stability, excellent chemical stability, excellent performance such that it increasingly wide range of applications , the production process is also more mature. 根据产品最终用途和结构的不同,应运而生了许多复合材料成型工艺,其中就包括采用预浸料模压成型工艺进行复合材料制作的方法;在使用现有的成型钢模制作一些曲面复杂结构的复合材料制品时,会出现侧面的层间结合力明显不如上下面的层间结合力、表面外观不佳的缺陷,同时还有钢模笨重不易搬运且成本高等问题。 Depending on the end use and the structure of products, many emerged composite molding process, including the prepreg molding process using a composite material is carried out; in some surfaces forming a complex structure using conventional steel production when the composite article, the side surface of the interlayer will be significantly less binding force on the bonding force between the underlying layer, poor surface appearance defects, as well as easily handling bulky steel and high cost.

实用新型内容 SUMMARY

[0003] 本实用新型所要解决的技术问题在于提供一种预浸料模压成型模具,该模具使用轻便,采用该模具所制作的复合材料具有优良的层间结合力和良好的表面外观。 [0003] The present invention is to solve the technical problem is to provide a prepreg molding mold which use lightweight, composite material of the mold has produced excellent inter-layer adhesion and good surface appearance.

[0004] 其所要解决的技术问题可以通过以下技术方案来实施。 [0004] To solve the technical problems it can be implemented through the following technical solutions.

[0005] 一种预浸料模压成型模具,包括上部的上模、下部的下模以及中间的芯模,其特点为,所述芯模为一硅胶模。 [0005] A prepreg molding die, the die comprising an upper portion, a lower portion of the lower die and the intermediate core mold, characterized by, the core mold is a silicone mold.

[0006] 作为本技术方案的进一步改进,所述硅胶模为一中空的硅胶气囊结构。 [0006] As a further improvement of the present technical solution, the silicone mold is a hollow silica balloon structure.

[0007] 作为本技术方案的更进一步改进,所述硅胶气囊具有一气嘴;该气嘴连接气囊的气室与外部空间,可以通过该气嘴进行气压调节,以使硅胶气囊的表面对拟成型复合材料的压力发生改变。 [0007] As a further aspect of the present disclosure, the airbag having a silicone nozzle stretch; the gas nozzle connected to the air chamber of the airbag with the external space, the air pressure can be adjusted by the gas nozzle, so that the surface of silica gel bladder molded Quasi composite pressure changes.

[0008] 采用上述技术方案的预浸料模压成型模具主要是为了解决制作结构复杂、精细的复合材料的成型,改善所成型材料外观,增强产品的力学性能。 [0008] In the above aspect of the prepreg molding die is to solve the complicated production of the molding structure, a fine composite material, to improve the appearance of the molding material, enhancing the mechanical properties of the product.

[0009] 由于硅胶具有优异的流动性,良好的操作性,可塑性好,可以用于各种结构复杂、 精巧的复合材料制品;硅胶模不变形、耐高温、耐酸碱、可反复使用,降低成本;并且容易脱模,收缩率小。 [0009] Since the silica gel has an excellent flowability, excellent workability, plasticity, and various structures can be used for complex, delicate composite article; silicone mold without distortion, high temperature, acid, can be used repeatedly, reducing cost; and easily release, shrinkage is small. 预浸料模压成型时,将硅胶气囊作为芯模内胆放置模腔中预浸料铺层上,成型时通过气嘴装置进行内部加压,使复合材料成型。 When press molding the prepreg, a mandrel silica gel bladder liner is placed in the upper cavity layer prepreg, internally pressurized by the gas nozzle means during molding of the composite material is molded. 由于气压的特殊性,材料在各方向上受到的压力均勻,复合材料制品侧边的层间结合就比较好。 Due to the particularity of uniform pressure, the material subjected to upward pressure on the parties, the interlayer composite article is better binding side. 同时硅胶的膨胀性,使得它受热时,膨胀均勻,所做的复合材料产品能够得到更好的外观。 While the expandable silicone, such that when it is heated, expanded uniformly, a composite product can be made better appearance.

附图说明 BRIEF DESCRIPTION

[0010] 下面结合附图对本实用新型的具体实施方式作一详细说明。 [0010] DRAWINGS present invention for a specific embodiment described in detail.

[0011] 图1为制备本实用新型硅胶模的结构分解示意图; [0011] FIG. 1 is an exploded schematic view of the structure of the present invention was prepared in the silicone mold;

[0012] 图2为本实用新型结构分解示意图; [0012] FIG. 2 is an exploded schematic view of the structure of invention;

[0013] 图中:11、21——上模具12——娃胶套 13——上芯模 [0013] FIG: 12-- baby on 11,21-- mold core mold sleeve 13--

[0014] 14——下芯模15、25——下模具22——预浸料产品[0015] 24——气嘴装置。 [0014] 14-- lower core die lower die 22-- 15,25-- prepreg Products [0015] 24-- gas nozzle means. 具体实施方式 Detailed ways

[0016] 如图1和图2所示的预浸料模压成型模具,主要由上模具21、下模具25以及作为芯模的硅胶套12构成;其中硅胶套12是一个中空的气囊式结构,在其一侧安放有气嘴装置对。 [0016] Prepreg molding mold as shown in Figures 1 and 2, the main 21, the lower die 25 and the core die as silicone sleeve 12 is constituted by an upper mold; wherein the silicone sleeve 12 is a hollow balloon structure, at one side thereof with a gas nozzle means mounted pair. 其中的硅胶套12可以采用上模具11、下模具15以及金属件上芯模13和下芯模14制备而成。 Wherein the silicone sleeve 12 may be employed on the mold 11, the mold core mold 15 and the upper metal mold 13 and the lower core 14 is prepared from. 具体硅胶模制备过程以及使用该模具进行预浸料模压成型制备复合材料的过程和方法可以通过以下的具体一个实施例的操作步骤进行详细说明。 Preparation of silicone molding process, and the specific process and molding a prepreg composite material prepared using the mold for a possible embodiment of the procedure described in detail by the following specific.

[0017] 第一步,硅胶气囊的制备: [0017] The first step, silica balloon prepared:

[0018] 制作前先进行准备工作,包括原料准备,将固体硅胶裁切成需要的规格,金属件芯模准备;模具准备,清理模具,机台预热等。 [0018] The first pre-production preparations, including raw material preparation, the solid silica gel cut into desired size, to prepare metal core mold; mold preparation, mold cleaning, machine preheating.

[0019] 制作时,先在预热过的模具表面打一层脱模剂以保证产品成型后能顺利脱模。 [0019] Production, first beat in a preheated layer of the release agent to the mold surface to ensure smooth molded product after demolding. 将裁切好的固体硅胶铺放在上下模具11和15中,将上下金属件芯模13和14按所需硅胶气囊的厚度固定在模具中,合模后放入硫化机中加温加压,冷却后将其脱模取出,最后在硅胶套12预留的一面装上气嘴装置24。 The solid silicone laid good cut upper and lower dies 11 and 15, the upper and lower core mold 13 and the metal member 14 according to the thickness required for fixing the airbag silica gel in the mold, the mold temperature and pressure into a vulcanizing machine after cooling, taken out of its release, and finally reserved in the silicone sleeve 12 fitted with side air nozzle means 24. 因为硅胶具有优异的流动性,良好的操作性,可塑性好; 因此可以很好的根据模具的形状模拟出各种结构复杂、精巧的模型,便于后续的复材产品成型。 Because the silicone has excellent fluidity, good handling, good plasticity; thus it can well simulate various complex structures, sophisticated model according to the shape of the mold, to facilitate the subsequent molding-wood products.

[0020] 也就是说在内胆模具中,将固体硅胶分别在上下模具中按设计进行铺层,在下模具的硅胶上放置相配合的金属件作为芯模,合模加压成型。 [0020] That is the liner mold, solid silicone mold for each upper and lower laminate according to the design, the lower mold is placed on a silica gel mating metal mold as a core member, clamping pressure molding. 其中制作成型的硅胶气囊可以循环使用。 Wherein the silica produced molded airbag can be recycled. 并且硅胶气囊的制备中,所用的金属件上芯模13和下芯模14起控制硅胶气囊厚度的作用,分为上下两层,合起来中间为空心结构,其目的在于减轻重量。 Preparation of silica gel and the airbag, the core mold 13 and the lower core metal mold 14 used in the silica gel from the airbag control the thickness effect, divided into two layers, the intermediate hollow structures together, and its object is to reduce the weight.

[0021] 第二步,预浸料的预成型: [0021] The second step, prepreg preform:

[0022] 同样的做好先前准备工作:将预浸料产品22裁切成需要的规格;模具准备,清理模具,机台、模具预热;在上下模具21和25上打脱模剂,按产品的设计铺层。 The same good [0022] Preparations previously: 22 cut the prepreg product into the desired specifications; mold preparation, clean up mold, machine, mold preheating; mold release agents playing on the upper and lower dies 21 and 25, according to product design overlay.

[0023] 第三步,复合材料的固化成型: [0023] The third step, curing and molding the composite material:

[0024] 将配置了气嘴的硅胶气囊涂抹过脱模剂后按尺寸标准放置于下模具25中,合模加温加压成型,最终冷却后脱模取出。 After standard sized [0024] The air nozzle disposed over the release agent applicator silicone balloon is placed in the lower mold 25, the mold clamping pressure heating molding, demolding removed after the final cooling. 这一成型工艺利用了气体的特点——流动性、扩散性和各向同性,硅胶气囊中的气体使复合材料产品各方向上受力均勻,各侧面和上下面的层间结合也基本达到一致。 This molding process utilizing the characteristics of gas - mobility, diffusion and isotropic, so that the gas in the airbag silicone composite product receiving parties uniform upward force on the bond between each side surface and the underlying layers also achieve substantially uniform . 而硅胶在高温情况下,受热膨胀较为均勻,所以产品表面外观得到了改善。 And silica at elevated temperatures, more uniform thermal expansion, so the product surface appearance is improved.

[0025] 即在模具中,将预浸料按设计铺层,硅胶气囊作为内胆放置其上,合模加压成型。 [0025] i.e. in a mold, the prepreg ply according to the design, the balloon as silica gel is placed on the liner, mold press molding.

[0026] 本实用新型提供的硅胶气囊辅助预浸料模压成型模具,是将固体硅胶按预先设计的铺层方式在下模上进行铺层,根据不同形状的硅胶气囊,将所需的金属块放置在硅胶上, 在上模腔进行相同的操作。 [0026] The present invention provides an airbag silica auxiliary prepreg molding die, is a solid silicone ply manner by pre-designed, ply on the lower die, according to different airbag shapes silica gel, placing the desired metal block on silica gel, performing the same operation in the upper cavity. 将上下模合模,在硫化机上加温加压成型,冷却脱模后获得所需的空心硅胶气囊。 The upper and lower mold clamping, on a heated compression molding vulcanizing machine to obtain the desired hollow silica balloon cooled mold. 预浸料模压成型时,将提前制备的硅胶气囊作为内胆放置模腔中预浸料铺层上,成型时通过气嘴内部加压,使复合材料成型。 When press molding the prepreg, silica balloon prepared in advance as the liner is placed in the upper cavity layer prepreg, the pressurized gas nozzle through the interior of the molding, the molded composite material.

[0027] 由于硅胶气囊制作简单、使用灵活,因此本模具的硅胶芯模可循环多次利用,较之用金属芯模辅助成型模压工艺,成本较低。 [0027] Since the silica gel airbag production of simple, flexible, and therefore the present silicone mold core mold cycle times may be utilized, as compared with the metal-assisted molding core mold molding process, low cost.

Claims (3)

1. 一种预浸料模压成型模具,包括上部的上模、下部的下模以及中间的芯模,其特征在于,所述芯模为一硅胶模。 A prepreg molding die, the die comprising an upper portion, a lower portion of the lower die and the intermediate core mold, wherein the core mold is a silicone mold.
2.根据权利要求1所述的预浸料模压成型模具,其特征在于,所述硅胶模为一中空的硅胶气囊结构。 2. The prepreg molding mold according to claim 1, characterized in that said silicone mold is a hollow silica balloon structure.
3.根据权利要求2所述的预浸料模压成型模具,其特征在于,所述硅胶气囊具有一气嘴。 3. The prepreg molding mold according to claim 2, wherein said silica gel has a stretch airbag mouth.
CN2010206051269U 2010-11-15 2010-11-15 Compression molding die for prepreg CN201856381U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496179A (en) * 2013-10-10 2014-01-08 航天海鹰(镇江)特种材料有限公司 Molding method for composite material structural member with I-shaped section
CN104175572A (en) * 2014-07-18 2014-12-03 威海光威复合材料有限公司 Method for producing composite material drum type rocking arm for fishing reel
CN104669632A (en) * 2013-12-02 2015-06-03 昌河飞机工业(集团)有限责任公司 Molding method of complex composite material component
CN105415709A (en) * 2015-12-16 2016-03-23 上海晋飞新材料科技有限公司 Forming process and making die for antiflaming camber beam formed through 3D nylon air duct
CN105415716A (en) * 2015-12-16 2016-03-23 上海晋飞新材料科技有限公司 Forming process and manufacturing die of mammography support carbon plate
CN104589670B (en) * 2014-12-02 2017-06-23 航天海鹰(镇江)特种材料有限公司 A kind of gas path design method of composite cavity structure air bag shaping
CN108407328A (en) * 2018-02-11 2018-08-17 佛山市顺德区迈进机械制造有限公司 A kind of hot-press molding method of composite product

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496179A (en) * 2013-10-10 2014-01-08 航天海鹰(镇江)特种材料有限公司 Molding method for composite material structural member with I-shaped section
CN103496179B (en) * 2013-10-10 2015-11-18 航天海鹰(镇江)特种材料有限公司 The forming method of i shaped cross section composite material structural member
CN104669632A (en) * 2013-12-02 2015-06-03 昌河飞机工业(集团)有限责任公司 Molding method of complex composite material component
CN104175572A (en) * 2014-07-18 2014-12-03 威海光威复合材料有限公司 Method for producing composite material drum type rocking arm for fishing reel
CN104589670B (en) * 2014-12-02 2017-06-23 航天海鹰(镇江)特种材料有限公司 A kind of gas path design method of composite cavity structure air bag shaping
CN105415709A (en) * 2015-12-16 2016-03-23 上海晋飞新材料科技有限公司 Forming process and making die for antiflaming camber beam formed through 3D nylon air duct
CN105415716A (en) * 2015-12-16 2016-03-23 上海晋飞新材料科技有限公司 Forming process and manufacturing die of mammography support carbon plate
WO2017101491A1 (en) * 2015-12-16 2017-06-22 上海晋飞新材料科技有限公司 Process and manufacturing die for forming 3d nylon air-duct formed flame-retardant curved beam
CN108407328A (en) * 2018-02-11 2018-08-17 佛山市顺德区迈进机械制造有限公司 A kind of hot-press molding method of composite product

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