A preform tool for laying up a moulded fibre composite flap structure

Abstract

The utility model discloses a kind of moulding fibre composite material flap structure laying preform mould, including mould base, mould base is provided with mould body, and at least one detachable insert is arranged in the edge of mould body, and with mould body form laying sink, flap preform is laid and positioned in laying sink;Snake-shaped flow guide channel is processed in mould base along horizontal, and the laying temperature of mould body is regulated by circulating water.Through the laying preform mould meets the laying demand of flap preform, and it is applicable to the continuous operation of industrial production without interruption.And laying preform mould designs flow guide channel, and it is convenient to regulate and control the laying temperature of mould;Mould body and first insert, second insert are assembled and separated by lock bolt, and it is convenient to take out preform;So that laying preform mould structure is conveniently disassembled, easy to operate, with low manufacturing cost, reliable in work, has universal use demand in the moulding forming manufacturing of flap and other composite material products.

Description

Technical Field

[0001] This utility model relates to the field of fiber composite material preform mold technology, and in particular to a preform mold for molding fiber composite material wing structure laying. Background Technology

[0002] Fiber-reinforced polymer (FRP) composites, due to their superior properties such as high specific strength, high specific modulus, strong designability, and good fatigue resistance, have become indispensable key materials in aerospace, defense, high-end equipment, and new energy fields. Among these, wing structures are one of the core components in these fields, and their performance directly determines the overall equipment effectiveness. Typical wing structures include: UAV wings, missile tail fins / wings, helicopter rotors, small aircraft flaps and ailerons, and high-performance racing car tail fins. These wing structures typically feature complex aerodynamic shapes (often airfoils), thin thickness, and extremely high dimensional accuracy requirements. Their manufacturing quality directly affects aerodynamic efficiency, flight stability, stealth performance, and overall reliability.

[0003] Among the various molding processes for composite material airfoils (such as hand lay-up, filament winding, pultrusion, and RTM), compression molding is favored due to its high efficiency, high precision, excellent surface quality, and suitability for mass production. However, traditional lay-up methods involve complex layering and preforming operations within a mold, which consumes a significant amount of expensive press equipment and mold time, resulting in high costs. Utility Model Content

[0004] To address the aforementioned issues, pre-formed molds for paving have emerged. These are not final molding molds, but rather specialized process molds used in intermediate stages. Their core concept is offline operation and online forming, thereby solving the problem of long paving time for fiber composite wing structures.

[0005] To solve the above technical problems, this utility model provides a mold for laying preforms of fiber composite material wing structure, including a mold base, a mold body is provided on the mold base, and at least one detachable insert is provided on the edge of the mold body to form a laying groove with the mold body, and the wing preform is laid and positioned in the laying groove. A serpentine flow channel is machined horizontally within the mold base, and the laying temperature of the mold body is regulated by circulating water.

[0006] Preferably, a first insert is provided on one side of the mold body, and the first insert is detachably attached to the side wall of the mold body by a first locking bolt.

[0007] Preferably, the first insert has a joint groove machined on the side wall near the mold body for placing the mounting joint of the wing preform.

[0008] Preferably, a second insert is provided on the other side of the mold body, and the second insert is detachably installed on one side of the mold body by a second locking bolt.

[0009] Preferably, the second insert and the first insert are respectively installed on the side wall connected to the mold body. By disassembling the first insert and the second insert, the laid wing preform can be easily removed.

[0010] Preferably, the serpentine flow channel has a flow channel inlet at one end and a flow channel outlet at the other end, and is connected to an external mold temperature controller to circulate hot water into the serpentine flow channel, thereby regulating the laying temperature of the mold body.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model's preform mold meets the requirements for laying wing preforms and is suitable for continuous industrial production. The mold features a flow channel for easy temperature control during laying; the mold body is assembled and separated from the first and second inserts using locking bolts, facilitating the removal of the preform. This design makes the preform mold easy to assemble and disassemble, simple to operate, cost-effective, and reliable, making it widely applicable in the compression molding of composite material products such as winglets. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a pre-molded mold for laying a compression-molded fiber composite material wing structure provided by this utility model; Figure 2 This is a schematic diagram of the preform of the wing provided by this utility model being laid in a preform mold; Figure 3 This is an exploded view of a pre-molded mold for laying a compression-molded fiber composite material wing structure provided by this utility model; Figure 4 This is a cross-sectional view of a pre-molded mold for laying a compression-molded fiber composite wing structure, provided by this utility model.

[0013] In the figure: 1. Mold base; 2. Mold body; 201. Laying groove; 202. Joint groove; 3. First insert; 4. Second insert; 5. Serpentine guide channel; 6. First locking bolt; 7. Second locking bolt; 8. Flow channel inlet; 9. Flow channel outlet; 10. Wing preform; 11. Mounting joint. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0017] This utility model provides a pre-formed mold for molding fiber composite material wing structure. Please refer to [link / reference]. Figure 1-2 The system includes a mold base 1, on which a mold body 2 is provided, and at least one detachable insert is provided on the edge of the mold body 2 to form a laying groove 201 with the mold body 2. The wing preform 10 is laid and positioned in the laying groove 201. A serpentine guide channel 5 is horizontally processed in the mold base 1, and the laying temperature of the mold body 2 is regulated by circulating water.

[0018] For details, please refer to Figure 3 and Figure 4The mold body 2 has a first insert 3 on one side. The first insert 3 is detachably attached to the side wall of the mold body 2 by a first locking bolt 6. The first insert 3 has a joint groove 202 near the side wall of the mold body 2 for placing the mounting joint 11 of the wing preform 10.

[0019] Furthermore, a second insert 4 is provided on the other side of the mold body 2. The second insert 4 is detachably installed on one side of the mold body 2 by a second locking bolt 7. The second insert 4 and the first insert 3 are respectively installed on the connected side wall of the mold body 2. By disassembling the first insert 3 and the second insert 4, it is convenient to remove the laid wing preform 10.

[0020] Specifically, the serpentine flow channel 5 has a flow channel inlet 8 at one end and a flow channel outlet 9 at the other end, and is connected to an external mold temperature controller to circulate hot water into the serpentine flow channel 5, thereby regulating the laying temperature of the mold body 2.

[0021] This preform mold meets the requirements for laying airfoil preforms and is suitable for continuous industrial production. The mold features a flow channel for easy temperature control during laying; the mold body is assembled and separated from the first and second inserts using locking bolts, facilitating the removal of the preform. This design makes the preform mold easy to assemble and disassemble, simple to operate, cost-effective, and reliable, making it widely applicable in the compression molding of composite materials such as airfoils.

[0022] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A pre-molded mold for laying fiber composite material wing structure, characterized in that, Includes a mold base (1), on which a mold body (2) is provided, and at least one detachable insert is provided on the edge of the mold body (2) to form a laying groove (201) with the mold body (2), and the wing preform (10) is laid and positioned in the laying groove (201); A serpentine guide channel (5) is machined horizontally inside the mold base (1), and the laying temperature of the mold body (2) is regulated by circulating water.

2. The pre-molded mold for bonding fiber composite wing structures as described in claim 1, characterized in that, The mold body (2) has a first insert (3) on one side, and the first insert (3) is detachably attached to the side wall of the mold body (2) by means of a first locking bolt (6).

3. The pre-molded mold for laying out a compression-molded fiber composite material wing structure as described in claim 2, characterized in that, The first insert (3) has a joint groove (202) machined on the side wall near the mold body (2) for placing the mounting joint (11) of the wing preform (10).

4. The pre-molded mold for laying out a compression-molded fiber composite wing structure as described in claim 2, characterized in that, The mold body (2) has a second insert (4) on the other side, and the second insert (4) is detachably installed on one side of the mold body (2) by a second locking bolt (7).

5. The pre-molded mold for laying out a compression-molded fiber composite material wing structure as described in claim 4, characterized in that, The second insert (4) and the first insert (3) are respectively installed on the side wall connected to the mold body (2). By disassembling the first insert (3) and the second insert (4), it is convenient to take out the laid wing preform (10).

6. The pre-molded mold for laying out a compression-molded fiber composite material wing structure as described in claim 1, characterized in that, The serpentine flow channel (5) has a flow channel inlet (8) at one end and a flow channel outlet (9) at the other end, and is connected to an external mold temperature controller to circulate hot water into the serpentine flow channel (5) to regulate the laying temperature of the mold body (2).

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