Composite material protection cover autoclave forming combined die

Abstract

The utility model relates to a composite material protective cover autoclave forming combined mold, which comprises a mold main body, a middle movable block, a plurality of side edge movable blocks, a plurality of pressing plates and a plurality of locking plates, and a middle movable block groove matched with the middle movable block is formed in the top of the mold main body; a side movable block clamping groove used for being matched with a side edge movable block is formed in the peripheral side of the top of the die body, a threaded hole and a positioning pin hole which are used for fixing a pressing plate are formed in the top of the side edge movable block, and a threaded hole and a positioning pin hole which are used for fixing a locking plate are formed in the side portion of the side edge movable block. The top of the mold body, one side of the side edge movable block and the bottom of the pressing plate are each provided with a cavity face, and a forming cavity used for forming the composite material protection cover is formed among the cavity face of the mold body, the cavity face of the side edge movable block and the cavity face of the pressing plate. According to the utility model, material selection, matching mode, structure and the like are optimally designed, and the mold has the characteristics of convenience in operation, high efficiency, rapidness in demolding, low cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a composite material protection cover autoclave forming combined mold. Background Art

[0002] Composite materials have been widely used in military, aerospace and civil fields due to their excellent performance. The wide application of composite materials has promoted the development of their molding technology. Currently, the most widely used and most stable molding quality is the autoclave technology, and the mold has become the key tooling in the autoclave molding process.

[0003] Because the protective cover has high quality and size requirements for its appearance, for conventional composite materials products, the optional manufacturing processes include RTM process, compression molding process and autoclave process. However, both RTM process and compression molding process require double-sided molds, while the autoclave process only requires a single-sided mold, which is suitable for the production of large-size structural parts, and its mold cost is relatively low. From the perspective of technology and cost, while ensuring high product quality, it is hoped that the mold can be quickly laid and demoulded, thereby improving the overall production efficiency and reducing costs. Therefore, high requirements are placed on the autoclave molding mold. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a composite material protective cover autoclave forming combined mold with optimized design of mold material selection, matching method, mold structure, etc., which has the characteristics of convenient operation, high efficiency, fast demoulding, low cost, etc.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions. The utility model is a composite material protective cover autoclave molding combined mold, including a mold body, a middle movable block, a plurality of side movable blocks, and a plurality of pressure plates and locking plates for fixing the side movable blocks. A middle movable block groove for cooperating with the middle movable block is provided at the top of the mold body, a side movable block clamping groove for cooperating with the side movable block is provided at the top circumference of the mold body, a threaded hole and a positioning pin hole for fixing the pressure plate are provided at the top of the side movable block, and a threaded hole and a positioning pin hole for fixing the locking plate are provided at the side of the side movable block;

[0006] Cavity surfaces are arranged on the top of the mold body, one side of the side movable block, and the bottom of the pressure plate. A molding cavity for molding a composite material protective cover is formed between the cavity surface of the mold body, the cavity surface of the side movable plate, and the cavity surface of the pressure plate. A product positioning hole for cooperating with the molding of the composite material protective cover is also arranged on the pressure plate.

[0007] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the above-mentioned composite material protective cover autoclave molding combination mold, a threaded hole for drawing is also provided on the middle movable block, a screw expansion hole and a positioning pin hole are also provided on the pressure plate, and a screw expansion hole is also provided on the locking plate.

[0008] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the composite material protection cover autoclave forming combined mold described above, exhaust holes are also provided on the mold body and the side slide block.

[0009] The technical problem to be solved by the utility model can also be further achieved through the following technical scheme. For the above-mentioned composite material protective cover autoclave molding combination mold, the mold body, the middle movable block, the side movable block, the pressure plate and the locking plate are all made of metal and are selected from any one of carbon steel, stainless steel, copper, aluminum alloy and titanium alloy.

[0010] The technical problem to be solved by the utility model can also be further achieved through the following technical scheme. For the above-mentioned composite material protective cover autoclave molding combination mold, the mold body, the middle movable block, the side movable block, the pressure plate and the locking plate are all made of composite materials, and are one or more of glass fiber composite materials, basalt fiber composite materials, quartz fiber composite materials or aramid fiber composite materials.

[0011] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the composite material protection cover autoclave molding combined mold described above, a prying groove is also provided on the mold body at the side movable block slot.

[0012] The technical problem to be solved by the present invention can also be further achieved through the following technical scheme. For the above-mentioned composite material protection cover autoclave molding combined mold, the depth of the prying groove is 5-10mm and the width is 20-40mm.

[0013] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the composite material protection cover autoclave molding combined mold described above, a plurality of threaded holes for hoisting are also provided on the mold body.

[0014] The technical problem to be solved by the utility model can also be further achieved through the following technical scheme. For the above-mentioned composite material protective cover autoclave molding combination mold, the wall thickness of the mold body, the middle movable block, the side movable block, the pressure plate and the locking plate are all 20-60mm.

[0015] Compared with the prior art, the utility model provides a composite material protective cover autoclave forming combined mold, which adopts a sheet metal combination design to make the wall thickness uniform, reduce weight while facilitating synchronous heat transfer, reduce material loss and processing time, and significantly reduce mold costs. It can effectively eliminate dimensional deformation during mold heating while ensuring the smoothness of the product. It has the advantages of simple operation, high efficiency, and quick demoulding, which saves time, shortens the process flow, and has high production efficiency, making it suitable for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of the utility model;

[0017] Figure 2 This is a structural explosion diagram of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-2 A composite material protective cover autoclave molding combined mold, comprising a mold body 1, a middle movable block 2, a plurality of side movable blocks 3, and a plurality of pressing plates 4 and locking plates 5 for fixing the side movable blocks 3. A middle movable block groove 8 is provided on the top of the mold body 1 for installing the middle movable block 2, so that the product shape can be directly produced during molding, and it is convenient for the product to be demoulded later. A threaded hole 7 for pulling is also provided on the middle movable block 2 to facilitate the demoulding operation;

[0020] The top circumference of the mold body 1 is provided with a side movable block slot 9 for installing the side movable block 3, which is convenient for positioning and later removal of the side movable block 3. The pressing plate 4 and the locking plate 5 are respectively used to be installed on the top and side of the side movable block 3 to achieve the connection between the two adjacent side movable blocks 3, and also to strengthen and fix the side movable block 3, making it more reliable and stable. Preferably, a threaded hole 14 and a positioning pin hole 15 for fixing the pressing plate 4 are provided on the top of the side movable block 3, and a screw expansion hole and a positioning pin hole are also provided on the pressing plate 4, so that the pressing plate 4 is connected by threads and positioning pins to ensure the accuracy of the position; a threaded hole and a positioning pin hole for fixing the locking plate 5 are provided on the side of the side movable block 3, and a screw expansion hole is also provided on the locking plate 5, so that the pressing plate 4 is connected by threads to ensure the accuracy of the position; of course, the side movable block can also be made into an integrated type;

[0021] Specifically, a cavity surface 6 is provided on the top of the mold body 1, one side of the side movable block 3, and the bottom of the pressing plate 4. A molding cavity for molding the composite material protective cover is formed between the cavity surface 6 of the mold body 1, the cavity surface 6 of the side movable plate, and the cavity surface 6 of the pressing plate 4. On the one hand, it is ensured that the cavity surface 6 of the molded product is flat, and on the other hand, the dimensional accuracy of the product is ensured. A product positioning hole 13 for cooperating with the molding of the composite material protective cover is also provided on the pressing plate 4, so that a mark will be left on the product after molding, which is convenient for manual punching of the product at a later stage.

[0022] The mold body 1 and the side slider are also provided with exhaust holes 11, which are beneficial for the easy discharge of gas in the composite material during molding, and are beneficial for the later product demoulding. Gas can be injected into the exhaust holes 11 through the exhaust holes 11 to separate the product from the mold.

[0023] In actual application, a prying mold groove 10 is also provided on the mold body 1 at the side movable block slot 9 to facilitate the mold opening of the side movable block 3. Preferably, the prying mold groove 10 has a depth of 5-10 mm and a width of 20-40 mm.

[0024] The mold body 1 is also provided with a plurality of threaded holes 12 for lifting, so as to facilitate the installation of lifting rings and the lifting and unloading operations.

[0025] Preferably, the mold body 1, the middle movable block 2, the side movable block 3, the pressing plate 4 and the locking plate 5 are all made of metal and are selected from any one of carbon steel, stainless steel, copper, aluminum alloy and titanium alloy;

[0026] Alternatively, the mold body 1, the middle movable block 2, the side movable block 3, the pressing plate 4 and the locking plate 5 are all made of composite materials, and are a composite of one or more of glass fiber composite materials, basalt fiber composite materials, quartz fiber composite materials or aramid fiber composite materials;

[0027] The wall thickness of the mold body 1, the middle movable block 2, the side movable block 3, the pressing plate 4 and the locking plate 5 are all 20-60 mm, which takes into account both the overall production cost of the mold and the strength of the mold itself.

[0028] The use process of the composite material protection cover autoclave molding combined mold provided by the utility model is as follows:

[0029] First, use acetone to clean the surfaces of mold parts such as the mold body 1, the middle movable block 2, the side movable blocks 3, and the pressing plates 4 and locking plates 5 used to fix the side movable blocks 3, then install the middle movable block 2 in the middle movable block slot 8 on the mold body 1, and place the side movable blocks 3 in the side movable block slots 9 of the mold body 1, and then use screws to lock the locking plates 5 on every two side movable blocks 3, and finally use screws and positioning pins to connect the pressing plates 4 and the side plate movable blocks 3 to form a hot-pressing tank molding combined mold;

[0030] During molding, first evenly apply the release agent on the inner surface of the autoclave combined mold, and then lay the prepreg on the inner surface according to the laying requirements. After the prepreg is laid, the release cloth, isolation film and vacuum bag are laid in turn, and finally the autoclave is placed for molding and curing. After the curing is completed, the middle movable block 2, the pressure plate 4 and the side movable block 3 of the mold are removed in turn for demoulding to obtain a composite material protective cover product.

Claims

1. A composite material protective cover autoclave forming combined mold, characterized in that: The mold body comprises a mold main body, a middle movable block, a plurality of side movable blocks, and a plurality of pressing plates and locking plates for fixing the side movable blocks. A middle movable block groove for cooperating with the middle movable block is arranged on the top of the mold main body, a side movable block clamping groove for cooperating with the side movable block is arranged on the top peripheral side of the mold main body, a threaded hole and a positioning pin hole for fixing the pressing plate are arranged on the top of the side movable block, and a threaded hole and a positioning pin hole for fixing the locking plate are arranged on the side of the side movable block; Cavity surfaces are arranged on the top of the mold body, one side of the side movable block, and the bottom of the pressure plate. A molding cavity for molding a composite material protective cover is formed between the cavity surface of the mold body, the cavity surface of the side movable plate, and the cavity surface of the pressure plate. A product positioning hole for cooperating with the molding of the composite material protective cover is also arranged on the pressure plate.

2. The composite material protective cover autoclave forming combined mold according to claim 1, characterized in that: A threaded hole for pulling is also arranged on the middle movable block, a screw expansion hole and a positioning pin hole are also arranged on the pressing plate, and a screw expansion hole is also arranged on the locking plate.

3. The composite material protective cover autoclave forming combined mold according to claim 1 or 2, characterized in that: The mold body and the side slide block are also provided with exhaust holes.

4. The composite material protective cover autoclave forming combined mold according to claim 1, characterized in that: The mold body, the middle movable block, the side movable blocks, the pressure plate and the locking plate are all made of metal and are selected from any one of carbon steel, stainless steel, copper, aluminum alloy and titanium alloy.

5. The composite material protective cover autoclave forming combined mold according to claim 1, characterized in that: A mold prying groove is also arranged on the mold body at the clamping groove of the side movable block.

6. The composite material protective cover autoclave forming combined mold according to claim 5, characterized in that: The depth of the prying mold groove is 5-10mm and the width is 20-40mm.

7. The composite material protective cover autoclave forming combined mold according to claim 1, characterized in that: A plurality of threaded holes for hoisting are also arranged on the mold body.

8. The composite material protective cover autoclave forming combined mold according to claim 1 or 7, characterized in that: The wall thickness of the mold body, the middle movable block, the side movable block, the pressing plate and the locking plate are all 20-60 mm.

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