CN218197062U - Auxiliary forming device for thick plate made of composite material - Google Patents
Auxiliary forming device for thick plate made of composite material Download PDFInfo
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- CN218197062U CN218197062U CN202222256689.7U CN202222256689U CN218197062U CN 218197062 U CN218197062 U CN 218197062U CN 202222256689 U CN202222256689 U CN 202222256689U CN 218197062 U CN218197062 U CN 218197062U
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Abstract
The utility model discloses an auxiliary forming device of a thick composite material plate, which comprises a mould flat plate, a pressure equalizing plate, a thickness control strip, a vacuum bag and a sealing strip; the periphery of the vacuum bag is tightly attached and sealed with the flat plate of the mold through a sealing strip, a thick plate of composite material is arranged between the vacuum bag and the flat plate of the mold, the thick plate of composite material is provided with a plurality of composite material prepreg plates which are mutually overlapped, the bottom of the thick plate of composite material is tightly attached with the flat plate of the mold, a uniform pressure plate is arranged in the vacuum bag, and the uniform pressure plate is positioned above the thick plate of composite material; the two thickness control strips are respectively arranged outside the vacuum bag and on two sides of the thick composite material plate, the bottom of each thickness control strip is tightly attached to the vacuum bag and the mold flat plate, and the top of each thickness control strip is tightly attached to the vacuum bag and the pressure equalizing plate. The utility model discloses but the shaping of auxiliary control combined material thick plate, the combined material thick plate product thickness is even after the solidification, and surfacing reduces overflowing of the resin of combined material thick plate in the curing process.
Description
Technical Field
The utility model relates to a combined material thick plate shaping technical field specifically is a combined material thick plate's supplementary forming device.
Background
The prepreg vacuum curing technology is based on a composite prepreg paving process method, the conventional process is that glass fiber prepreg, carbon fiber prepreg, sandwich material and the like are paved on a mould, then a vacuum bag is arranged, air in the vacuum bag is pumped out to form negative pressure close to one atmosphere, the forming pressure in the curing process only adopts the vacuum bag, and the heating mode is mostly an oven or a heating felt; after the product is solidified, the vacuum bag material is removed, and the required product is obtained from the mould. In actual production, resin is easy to overflow in the curing and forming process of a thick composite material plate of a prepreg vacuum curing technology, so that the problems of uneven thickness, over-poor thickness or uneven surface and the like of a cured product are often caused, and the bearing capacity and the fatigue performance of a composite material member are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of uneven product thickness, thickness out-of-tolerance or uneven surface and the like easily caused in the vacuum curing process of the prepreg of the existing composite material thick plate, provide a secondary control thick plate forming device which has even product thickness after curing and smooth surface on the composite material thick plate.
In order to achieve the above object, the utility model provides a following technical scheme:
an auxiliary forming device for a thick plate made of composite materials comprises a mould flat plate, a pressure equalizing plate, a thickness control strip, a vacuum bag and a sealing strip; the periphery of the vacuum bag is tightly attached and sealed with the flat mould plate through a sealing strip, a thick composite material plate is arranged between the vacuum bag and the flat mould plate, the thick composite material plate is provided with a plurality of composite material prepreg plates which are mutually overlapped, the bottom of the thick composite material plate is tightly attached with the flat mould plate, the uniform pressure plate is arranged in the vacuum bag, and the uniform pressure plate is positioned above the thick composite material plate; the thickness control strips are arranged outside the vacuum bag and on two sides of the thick composite material plate respectively, the bottoms of the thickness control strips are tightly attached to the vacuum bag and the mould flat plate, and the tops of the thickness control strips are tightly attached to the vacuum bag and the pressure equalizing plate.
According to the scheme, the periphery of the vacuum bag is tightly attached and sealed with the flat plate of the mold through the sealing strip, vacuum pressure is formed between the vacuum bag and the flat plate of the mold to assist the molding of the thick plate of the composite material, the thick plate of the composite material is formed by paving and attaching the prepreg of the composite material, the bottom of the thick plate of the composite material is tightly attached to the flat plate of the mold in the paving and attaching process, and the uniform pressure plate is positioned above the thick plate formed by paving and attaching the prepreg of the composite material; the vacuum bag is provided with an air exhaust hole which is connected with the vacuum-pumping equipment so that the vacuum equipment can vacuumize the space in the vacuum bag.
As the preferred scheme of the utility model, the pressure equalizing plate is an aluminum alloy plate, the thickness of the pressure equalizing plate is 1-2 cm, and the side length of each side of the pressure equalizing plate is 25-30 mm larger than that of each side of the composite thick plate.
As the preferred scheme of the utility model, the height of the thickness control strip is 0.4-0.6 mm lower than the design height of the thick plate made of the composite material.
As the preferable proposal of the utility model, the distance between the outer side surface of the thickness control strip and the edges of the two sides of the flat plate of the die is not less than 15 cm. This spacing can be used for sealing strip laying and thickness control strip placement.
As the preferred proposal of the utility model, the pressure equalizing plate and the thick plate of the composite material are provided with demoulding cloth. The demoulding cloth is convenient for demoulding the product in the process.
The working principle of the scheme is as follows: after the composite material thick plate is paved and attached on the flat die plate according to the requirements, firstly, demolding cloth can be paved, then, a pressure equalizing plate with high rigidity, such as an aluminum alloy plate, is added above the composite material thick plate, the pressure equalizing plate can completely cover the composite material thick plate, the side edge of the composite material thick plate needs to be grown outside the pressure equalizing plate, then, a vacuum bag is arranged, the composite material thick plate and the pressure equalizing plate are covered in the pressure equalizing plate, two symmetrical thickness control strips are placed below the two sides of the composite material thick plate grown outside the vacuum bag and below the two sides of the composite material thick plate by the pressure equalizing plate, the upper surface and the lower surface of the composite material thick plate can be kept flat by the pressure equalizing plate and the thickness control strips can help the pressure equalizing plate to control the thickness of the composite material thick plate within a uniform range, and the thickness error is reduced; and after the vacuum reaches the requirement, heating the composite material thick plate by using an oven or a heating felt until the resin gel is cured to a certain degree, removing the vacuum bag material, and taking out the composite material thick plate from the flat plate of the mold for post-treatment.
Compared with the prior art, the beneficial effects of the utility model are that:
the forming of the composite material thick plate can be controlled in an auxiliary mode, and the cured composite material thick plate product is uniform in thickness and smooth in surface.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. mould flat plate 2, vacuum bag 3 and thickness control strip
4. A uniform pressure plate 5, an inner space 6 of the vacuum bag and a thick plate of composite material.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Referring to fig. 1, the present invention provides a technical solution:
an auxiliary forming device for a thick plate made of composite materials comprises a mould flat plate 1, a pressure equalizing plate 3, a thickness control strip 4, a vacuum bag 2 and a sealing strip; the periphery of the vacuum bag 2 is tightly attached and sealed with the mould flat plate 1 through a sealing strip (not shown in the figure), a vacuum bag internal space 5 is formed between the vacuum bag 2 and the mould flat plate 1 and is provided with a composite material thick plate 6, the composite material thick plate 6 is provided with a plurality of composite material prepreg plates which are mutually overlapped, the bottom of the composite material thick plate 6 is tightly attached with the mould flat plate 1, the pressure equalizing plate 3 is arranged in the vacuum bag 2, and the pressure equalizing plate 3 is positioned above the composite material thick plate 6 formed by paving and attaching the composite material prepreg; the two thickness control strips 4 are respectively arranged outside the vacuum bag 2 and on two sides of the thick composite material plate 6, the bottom of each thickness control strip 4 is tightly attached to the vacuum bag 2 and the mold flat plate 1, and the top of each thickness control strip 4 is tightly attached to the vacuum bag 2 and the pressure equalizing plate 3.
The pressure equalizing plate 3 is an aluminum alloy plate, the thickness of the pressure equalizing plate 3 is 1-2 cm, and the side length of each side of the pressure equalizing plate 3 is 25-30 mm larger than that of each side of the composite material thick plate 6.
The height of the thickness control strip 4 is 0.4-0.6 mm lower than the designed height of the composite material thick plate 6.
The distance between the outer side surface of the thickness control strip 4 and the two side edges of the flat plate 1 of the die is not less than 15 cm.
And a demoulding cloth is arranged between the pressure equalizing plate 3 and the composite material thick plate 6.
The utility model discloses work flow:
after the composite material thick plate 6 is laid on the mold flat plate 1, firstly, demolding cloth is laid on the composite material thick plate 6, then, a pressure equalizing plate 3 is added above the composite material thick plate 6, then, a vacuum bag 2 is arranged, the composite material thick plate 6 and the pressure equalizing plate are wrapped in an inner space 5 of the vacuum bag, two symmetrical thickness control strips 3 are placed outside the vacuum bag 2 and below the pressure equalizing plate 4, after the composite material thick plate 6 and the mold flat plate 1 are sealed through sealing strips, the whole system is vacuumized through a vacuumizing port of the vacuum bag 2, the airtightness is checked after the completion, after the vacuum degree meets the requirement, the vacuum bag 2, the demolding cloth and other materials are removed after the vacuum bag 2 and the pressure equalizing plate are heated by an oven or a heating felt until resin gel is solidified to a certain degree, and the composite material thick plate 6 is taken out from the mold flat plate 1 for post-treatment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an auxiliary forming device of combined material thick plate which characterized in that: comprises a mould flat plate, a pressure equalizing plate, a thickness control strip, a vacuum bag and a sealing strip;
the periphery of the vacuum bag is tightly attached and sealed with the flat mould plate through a sealing strip, a thick composite material plate is arranged between the vacuum bag and the flat mould plate, the thick composite material plate is provided with a plurality of composite material prepreg plates which are mutually overlapped, the bottom of the thick composite material plate is tightly attached with the flat mould plate, the uniform pressure plate is arranged in the vacuum bag, and the uniform pressure plate is positioned above the thick composite material plate;
the thickness control strips are arranged outside the vacuum bag and on two sides of the thick composite material plate respectively, the bottoms of the thickness control strips are tightly attached to the vacuum bag and the mold flat plate, and the tops of the thickness control strips are tightly attached to the vacuum bag and the pressure equalizing plate.
2. The auxiliary forming device for thick plate of composite material as claimed in claim 1, wherein: the pressure equalizing plate is an aluminum alloy plate, the thickness of the pressure equalizing plate is 1-2 cm, and the side length of each side of the pressure equalizing plate is 25-30 mm larger than that of each side of the composite thick plate.
3. The auxiliary forming device for the composite material slab as claimed in claim 1, wherein: the height of the thickness control strip is 0.4-0.6 mm lower than the design height of the composite material thick plate.
4. The auxiliary forming device for the composite material slab as claimed in claim 1, wherein: the distance between the outer side surface of the thickness control strip and the edges of the two sides of the flat plate of the die is not less than 15 cm.
5. The auxiliary forming device for the composite material slab as claimed in claim 1, wherein: and a demolding cloth is arranged between the pressure equalizing plate and the composite material thick plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222256689.7U CN218197062U (en) | 2022-08-24 | 2022-08-24 | Auxiliary forming device for thick plate made of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222256689.7U CN218197062U (en) | 2022-08-24 | 2022-08-24 | Auxiliary forming device for thick plate made of composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218197062U true CN218197062U (en) | 2023-01-03 |
Family
ID=84659008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222256689.7U Active CN218197062U (en) | 2022-08-24 | 2022-08-24 | Auxiliary forming device for thick plate made of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218197062U (en) |
-
2022
- 2022-08-24 CN CN202222256689.7U patent/CN218197062U/en active Active
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