Combined mold for wallboard structure forming

Abstract

The invention provides a combined mold for wallboard structure forming, which comprises a male mold for wallboard forming and a female mold matched with the male mold for forming, the male mold comprises a main mold body and an insert, a wallboard forming area of the main mold body is integrally sealed, and the insert is matched with the main mold body. The inserts are tightly attached to the two sides of the main die body to jointly form the shape of a wall plate. A first cavity is formed in the main mold body, a first operation hole for mounting the insert is formed in the end part and / or the bottom of the main mold body, and the first operation hole is communicated with the first cavity; a plurality of sealing assemblies used for positioning and connecting the insert and the main die body are arranged on the two side walls of the first cavity, and the sealing assemblies are detachable. The mold is simple in structure and low in manufacturing cost, a good sealing effect can be provided in the wallboard forming process, disassembly is convenient, the difficulty of implementing the vacuum bag making procedure is effectively reduced, and meanwhile the demolding efficiency and the safety of the demolding process can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aviation structural component molding, and in particular to a combined mold for wall panel structure molding. Background Art

[0002] Reinforced panels are a common structural form in aviation components, particularly in fuselage panel structures. Fuselage panel cross-sections typically have an O-shaped or closed-end structure, with stringers or stiffeners distributed on their inner surface. Currently, the aviation manufacturing industry primarily utilizes two molding processes for fuselage paneling: gluing stringers or integral curing. For large-scale, full-tube or closed-end fuselage panels, mold types are primarily categorized into male and female molds, depending on the molding process. Female molds require solutions for gluing and positioning the stringers or stiffeners, as well as mold sealing. Male molds, however, face demolding requirements further increase the difficulty of mold sealing, requiring higher requirements than female molds. Faulty mold sealing can easily lead to panel defects, such as bubbles and holes, which in turn reduce the strength and stiffness of the finished panel, impacting its load-bearing capacity. Therefore, both female and male molds require solutions for mold sealing.

[0003] Especially when using the male mold integral curing molding process, the current standard practice is to create a modular molding mold, dividing the mold into several pieces, and using a sealing strip structure to achieve a sealed effect after the pieces are assembled. However, this modular sealing structure places strict demands on the mold processing precision to ensure that the sealing strips function properly. This directly leads to a surge in mold manufacturing costs. Moreover, during the subsequent mold use stage, since the mold must be disassembled and assembled to manufacture each wall panel part, the mold assembly accuracy gradually decreases with the cumulative disassembly and assembly, and the risk of sealing structure failure increases sharply. Once the mold sealing structure fails, it is extremely difficult to repair and the rework cost is very high, introducing many unstable factors and financial burdens to the production process. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a combined mold for forming a wall panel structure, so as to improve the sealing effect, facilitate operation, and reduce the mold manufacturing cost.

[0005] The present invention proposes a combined mold for forming a wall panel structure, comprising a male mold for forming the wall panel and a female mold for forming in cooperation with the male mold, the male mold comprising a main mold body and an insert, the wall panel forming area of the main mold body is in an integrated sealed arrangement, the insert fits tightly to both sides of the main mold body to jointly form the shape of the wall panel; a first cavity is provided in the main mold body, a first operating hole for installing the insert is provided at the end and / or bottom of the main mold body, and the first operating hole is connected to the first cavity; a number of sealing components for positioning and connecting the insert and the main mold body are provided on both side walls of the first cavity, and the sealing components are detachably connected.

[0006] Preferably, insert fitting surfaces are provided on both side outer walls of the main mold body, and a plurality of first positioning holes and first fixing holes for installing the inserts are opened on the insert fitting surfaces.

[0007] Preferably, the sealing assembly includes a fixing portion for connecting the main mold body and the insert, the fixing portion is provided with a first sealing groove, and a first sealing ring is provided in the first sealing groove;

[0008] When the fixing portion is inserted into the first fixing hole to connect and lock the insert, the first sealing ring is tightly fitted to the inner side wall of the main mold body to seal the first fixing hole.

[0009] Preferably, the sealing assembly further comprises a positioning portion for positioning the main mold body and the insert, the positioning portion is provided with a second sealing groove, and a second sealing ring is provided in the second sealing groove;

[0010] When the positioning portion is inserted into the first positioning hole until the insert is inserted, the second sealing ring is tightly fitted on the side wall of the first cavity to seal the first positioning hole.

[0011] Preferably, the first sealing ring and the second sealing ring are both made of polytetrafluoroethylene.

[0012] Preferably, the first sealing ring and the second sealing ring are arranged in an O-shape or a square.

[0013] Preferably, the first positioning holes are arranged in a wavy broken line.

[0014] Preferably, one end of the main mold body is provided with a connecting portion for connecting to a flipping device, and the flipping device drives the connecting portion to adjust the posture of the main mold body to facilitate demoulding.

[0015] Preferably, the insert includes a plurality of splicing parts, a second cavity is provided in the splicing parts, the second cavity is provided with a plurality of support beams extending to the opening of the second cavity, and the support beams together constitute a fitting surface that fits with the main mold body.

[0016] Preferably, the support beam is provided with a plurality of second positioning holes and second fixing holes, the second positioning holes correspond to the first positioning holes, and the second fixing holes correspond to the first fixing holes.

[0017] As described above, the combined mold for forming a wall panel structure according to the present invention has the following beneficial effects compared with the prior art:

[0018] The present invention combines a main mold body and inserts to form a male mold. The inserts are detachably connected to the main mold body via a sealing assembly. When the inserts are tightly fitted to both sides of the main mold body, the sealing assembly locks the main mold body and inserts together to form a sealed whole. The present invention has a simple structure, low manufacturing cost, provides a good sealing effect during the wall panel forming process, and is easy to disassemble.

[0019] During the bag-making process, sealing strips are installed in the contact areas between the main mold and the inserts, as well as in the contact areas between the vacuum bag and other components, and the vacuum bag is wrapped around the combined mold consisting of the inserts and the main mold. Due to the sealing effect between the inserts and the main mold, the present invention can effectively implement the difficulty of the vacuum bag-making process.

[0020] After the wall panel parts are cured, the inserts can be separated from the main mold by removing the sealing components, which can effectively improve the demoulding efficiency and safety of the demoulding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A front view of a modular mold for forming a wall panel structure provided by one embodiment of the present invention;

[0022] Figure 2 A left side view of a modular mold for forming a wall panel structure provided by one embodiment of the present invention;

[0023] Figure 3 for Figure 1 Sectional view AA;

[0024] Figure 4 for Figure 3 A partial enlarged view of FIG1;

[0025] Figure 5 A schematic diagram of a positioning portion provided by an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a fixing portion provided in one embodiment of the present invention;

[0027] Figure 7 A distribution diagram of the first positioning holes and the first fixing holes on the mating surface of the main mold insert provided by one embodiment of the present invention;

[0028] Figure 8 Schematic diagram of vacuum bag making;

[0029] Figure 9 A three-dimensional schematic diagram of an inverted posture of a combined mold for forming a wall panel structure provided by one embodiment of the present invention;

[0030] Figure 10 A three-dimensional schematic diagram of demoulding of a combined mold for forming a wall panel structure provided by one embodiment of the present invention;

[0031] Figure 11 A front view of the demoulding process of a combined mold for forming a wall panel structure provided by one embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 100, male mold; 110, main mold body; 111, first positioning hole; 112, first fixing hole; 113, connecting part; 1131, second operating hole; 120, inlay; 121, splicing part; 130, first cavity; 140, first operating hole; 200, sealing assembly; 210, fixing part; 211, first sealing groove; 212, first sealing ring; 220, positioning part; 221, second sealing groove; 222, second sealing ring; 300, wall panel; 400, bracket. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0035] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0036] like Figures 1 to 11As shown, an embodiment of a combined mold for forming a wall panel structure includes a male mold for forming a wall panel 300 and a female mold (not shown in the figure) formed in conjunction with the male mold. The male mold 100 includes a main mold body 110 and an insert 120. The outer surface of the molding area of the main mold body 110 can be integrally molded or formed by separate welding, so that the wall panel molding area of the main mold body 110 is an integrated sealed setting, so that the main mold body has a good sealing effect during the wall panel molding process. The insert 120 is tightly fitted to both sides of the main mold body 110 to form the shape of the wall panel 300 (as shown in the figure). Figure 2 As shown). The mating surface between the insert 120 and the main mold body 110 includes but is not limited to a plane, as long as the two can fit tightly together. In this embodiment, the mating surface is preferably a plane, which can effectively increase the fit between the insert 120 and the main mold body 110. A first cavity 130 is provided in the main mold body 110, and the first cavity 130 extends all the way to both ends of the main mold body 110. The end and / or bottom of the main mold body 110 are provided with a first operating hole 140 for installing the insert 120. The first operating hole 140 is connected to the first cavity 130. It is understandable that an operator can reach into the first cavity 130 from the first operating hole 140 at the end of the main mold body 110 to install the insert 120, or can reach into the first cavity 130 from the first operating hole 140 at the top of the main mold body 110 to install the insert 120. Alternatively, multiple operators can simultaneously reach into the first cavity 130 from the first operating holes 140 at the top and ends to install the insert 120. Several sealing assemblies 200 for positioning and connecting the insert 120 and the main mold body 110 are provided on the two side walls of the first cavity 130, and the sealing assemblies 200 adopt a detachable connection to facilitate the disassembly and assembly of the insert 120. The detachable connection includes a threaded connection, a pin connection, a snap connection, etc. Among them, the size and installation position of the insert 120 are determined by the size of the wall panel 300 and the difficulty of demolding the wall panel. The technician can choose according to the specific working conditions. It should be noted that the structure of the insert 120 on both sides of the main mold body 110 can be the same or different, which is not limited here. It is specifically determined according to the structure of the wall panel 300 to be formed. A connecting portion 113 is provided at one end of the main mold body 110. The connecting portion 113 is connected to the flipping device through a flange, which can flip the main mold body 110 and the insert 120 to achieve posture adjustment and facilitate subsequent demolding and disassembly.

[0037] During installation, technicians install the inserts 120 on both sides of the main mold 110. During the installation process, they need to extend the sealing assembly 200 through the first operating hole 140 into the first cavity 130 of the main mold 110, pass through the inner wall of the main mold 110, and install it in the predetermined position to insert the inserts 120. This completes the positioning and connection, so that the inserts on both sides of the main mold 110 form a single unit (i.e., the shape of a wall panel) with it. The sealing assembly can achieve a tight seal between the inserts 120 and the main mold 110.

[0038] After the main mold 110 and the insert 120 are assembled, the wall panel manufacturing process such as wire laying can be carried out. Figure 10 As shown, the wall panel 300 is bagged by wrapping all the inserts 120 with vacuum bags. During the bagging process, sealing strips are installed in the contact areas between the main mold 110 and the inserts 120 and in the contact areas between the vacuum bag and other components. The vacuum bag is wrapped around the combined mold consisting of the inserts and the main mold, that is, the area included in the red line. Due to the sealing effect between the inserts 120 and the main mold 110, the difficulty of implementing the vacuum bagging process can be effectively reduced.

[0039] After the wall panel has been cured, the assembly of the main mold 110 and the inserts 120 is connected to a turning device via a flange. The turning device then flips the assembly 180°, placing the main mold 110 and the inserts 120 in an inverted position, and places the assembly on the bracket 400. The sealing assembly 200 is then disassembled, and the inserts 120 on both sides of the main mold 110 are removed. The main mold 110 is then lifted out of the mold using a lifting device. During this process, auxiliary devices can be used to abut the inserts 120 on both sides. Once the main mold 110 is completely lifted out of the mold, the inserts 120 are finally removed to complete the demolding of the wall panel 300, effectively improving the safety of demolding.

[0040] In one embodiment, if Figure 7 As shown, insert fitting surfaces for installing inserts are provided on both sides of the main mold body 110, and a plurality of first positioning holes 111 and first fixing holes 112 for installing inserts 120 are provided on the insert fitting surfaces. Preferably, the first positioning holes 111 are arranged in a wavy broken line (as shown by the red lines in the figure) to improve the accuracy of the insert 120 during installation, prevent local failure of the first positioning holes 111, and still ensure the precise positioning of the insert. Preferably, the first fixing holes 112 are arranged in a linear array, and the spacing between the first fixing holes 112 can be determined according to the specific working conditions to ensure that sufficient operating space is provided for the disassembly and assembly tools, facilitate the disassembly and installation of the insert, improve the maintenance efficiency of the mold, and avoid stress concentration problems, thereby improving the strength and reliability of the mold.

[0041] In one embodiment, if Figures 3 to 6 As shown, the sealing assembly 200 includes a fixing portion 210 for connecting the main mold body 110 and the insert 120. The fixing portion 210 defines a first sealing groove 211, within which a first sealing ring 212 is located. The fixing portion 210 is threaded at the end away from the first sealing groove 211, and the threaded end of the fixing portion 210 is loosely fitted with the first fixing hole 112. If the first sealing ring 212 in the first sealing groove 211 becomes damaged, the fixing portion 210 can be disassembled and replaced.

[0042] When in use, the threaded end of the fixing portion 210 is inserted into the first fixing hole 112 and threadedly connected to the insert 120. When the fixing portion 210 is rotated and locked, the fixing portion 210 drives the first sealing ring 212 to fit closely against the inner wall of the main mold body 110. At this time, the first sealing ring 212 is squeezed by the fixing portion 210 and the inner wall of the main mold body 110 (such as Figure 4 As shown), the first fixing hole 112 is sealed, thereby ensuring that the main mold body 110 has sealing performance.

[0043] In one embodiment, if Figure 5 As shown, the sealing assembly 200 also includes a positioning portion 220 for locating the position between the main mold body 110 and the insert 120. The positioning portion 220 is provided with a second sealing groove 221, and a second sealing ring 222 is provided in the second sealing groove 221. The positioning portion 220 is provided with a guide portion away from the second sealing groove 221. The end of the guide portion is tapered to facilitate the insertion of the positioning portion 220 into the predetermined position on the insert 120. The positioning portion 220 and the first positioning hole 111 are clearance-fitted, and the positioning portion 220 and the insert 120 are overfitted, which ensures positioning accuracy while facilitating disassembly. If the second sealing ring 222 in the second sealing groove 211 is damaged, the first sealing ring 212 can be replaced by disassembling the positioning portion 220.

[0044] When in use, the positioning portion 220 is inserted into the predetermined position on the insert 120 through the first positioning hole 111. When inserted, the positioning portion 220 drives the second sealing ring 222 to fit closely against the inner wall of the main mold body 110. At this time, the second sealing ring 222 is squeezed by the positioning portion 220 and the inner wall of the main mold body 110 (such as Figure 4 As shown), the first positioning hole 111 is sealed, thereby ensuring that the main mold body 110 has sealing performance.

[0045] Preferably, if Figure 5 and Figure 6 As shown, the first sealing ring 212 and the second sealing ring 222 are both made of polytetrafluoroethylene, which can be subjected to the wall panel curing process in a temperature environment of 100°C to 260°C and still maintain their own strength, thereby ensuring the sealing between the main mold body 110 and the insert 120.

[0046] Furthermore, the first sealing ring 212 and the second sealing ring 222 are arranged in an O-shape or a square shape, and the cross-sections of the first sealing ring 212 and the second sealing ring 222 include but are not limited to a Y-shape and an X-shape.

[0047] In one embodiment, a truss structure (not shown) is fixed in the first cavity 130 of the main mold body 110. The truss structure is fixed to the sidewalls of the first cavity 130 and is also fixed to the top and bottom of the first cavity 130 to improve the overall structural strength of the main mold body 110. Figures 8 to 10 As shown, one end of the main mold body 110 is provided with a connecting portion 113 for connecting to a flipping device. The flipping device drives the connecting portion 113 to adjust the posture of the main mold body 110 to facilitate subsequent demoulding and disassembly.

[0048] Specifically, the connecting portion 113 is fixedly or detachably connected to one end of the main mold 110. It is understood that the connecting portion 113 and the main mold 110 may be integrally formed, or may be separate from the main mold 110. Before the demolding process, to facilitate the installation of the insert 120, the connecting portion 113 is provided with a second operating hole 1131 for installing the insert 120. The second operating hole 1131 communicates with the first operating hole 140 and the first cavity 130. In this embodiment, the connecting portion 113 is preferably a flange structure to ensure a secure connection to the flip mechanism.

[0049] In one embodiment, if Figure 8 As shown, the insert 120 can be integrally formed or separately formed. In this embodiment, preferably, the insert 120 includes a plurality of splicing parts 121. The splicing parts 121 can be physically provided, or a cavity can be provided in the splicing parts 121, and the cavity is open. A plurality of support beams (not shown in the figure) are provided in the cavity and extend to the open part of the cavity. The support beams together constitute a fitting surface that fits with the main mold body 110 to improve the structural strength of a single splicing part 121 and reduce manufacturing costs. Among them, a detachable connection is adopted between the splicing parts 121. The connection method includes but is not limited to bolt connection, and a clamping connection can also be adopted, as long as it can ensure that the splicing part 121 still has a sealing effect after assembly.

[0050] Furthermore, the support beam is provided with a plurality of second positioning holes and second fixing holes (not shown in the figure), the second positioning holes corresponding to the first positioning holes 111, and the second fixing holes corresponding to the first fixing holes 112. The second fixing holes are provided with threads for connecting to the fixing portion 210; the second positioning holes and the positioning portion 220 are overfitted.

[0051] When in use, the threaded end of the fixing part 210 is inserted into the first fixing hole 112 and is threadedly connected to the second fixing hole by rotating the fixing part 210; the positioning part 220 is inserted into the second positioning hole through the first positioning hole 111 to achieve precise positioning to ensure that the insert 120 is accurately installed on the side walls of both sides of the main mold body 110.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A combined mold for forming a wall panel structure, comprising a male mold for forming the wall panel (300) and a female mold for forming in cooperation with the male mold, characterized in that: The male mold (100) comprises a main mold body (110) and an insert (120); the wall panel forming area of the main mold body (110) is in an integrated sealed arrangement; the insert (120) is tightly fitted to both sides of the main mold body (110) to form the shape of the wall panel; a first cavity (130) is provided in the main mold body (110); a first operating hole (140) for installing the insert is opened at the end and / or bottom of the main mold body (110); the first operating hole (140) is communicated with the first cavity (130); a plurality of sealing assemblies (200) for positioning and connecting the insert (120) and the main mold body (110) are provided on both side walls of the first cavity (130), and the sealing assemblies (200) are detachably connected.

2. The combined mold for forming a wall panel structure according to claim 1, characterized in that: The outer side walls on both sides of the main mold body (110) are provided with an inlay fitting surface, and the inlay fitting surface is provided with a plurality of first positioning holes (111) and first fixing holes (112) for installing the inlay.

3. The combined mold for forming a wall panel structure according to claim 2, characterized in that: The sealing assembly (200) comprises a fixing portion (210) for connecting the main mold (110) and the insert (120), a first sealing groove (211) being provided on the fixing portion (210), and a first sealing ring (212) being provided in the first sealing groove (211); When the fixing portion (210) is inserted into the first fixing hole (112) to connect and lock the insert (120), the first sealing ring (212) is tightly fitted to the inner wall of the main mold (110) to achieve sealing of the first fixing hole (112).

4. The combined mold for forming a wall panel structure according to claim 2, characterized in that: The sealing assembly (200) further comprises a positioning portion (220) for positioning the position between the main mold body (110) and the insert (120), a second sealing groove (221) being formed on the positioning portion (220), and a second sealing ring (222) being provided in the second sealing groove (221); When the positioning portion (220) is inserted into the first positioning hole (111) until it is inserted into the insert (120), the second sealing ring (221) is tightly fitted on the side wall of the first cavity (130), thereby sealing the first positioning hole (111).

5. The combined mold for forming a wall panel structure according to claim 4, characterized in that: The first sealing ring (212) and the second sealing ring (221) are both made of polytetrafluoroethylene.

6. The combined mold for forming a wall panel structure according to claim 4, characterized in that: The first sealing ring (212) and the second sealing ring (221) are arranged in an O-shape or a square.

7. The combined mold for forming a wall panel structure according to claim 2, characterized in that: The first positioning holes (111) are arranged in a wavy broken line.

8. The combined mold for forming a wall panel structure according to claim 1, characterized in that: One end of the main mold (110) is provided with a connecting portion (113) for connecting to a flipping device, and the flipping device drives the connecting portion (113) to adjust the posture of the main mold (110) to facilitate demoulding.

9. The combined mold for forming a wall panel structure according to any one of claims 1 to 8, characterized in that: The insert (120) includes a plurality of splicing parts (121), a second cavity is provided in the splicing parts (121), a plurality of support beams are provided in the second cavity and extend to the opening of the second cavity, and the support beams together form a fitting surface that fits with the main mold body (110).

10. The combined mold for forming a wall panel structure according to claim 9, characterized in that: The support beam is provided with a plurality of second positioning holes and second fixing holes, wherein the second positioning holes correspond to the first positioning holes (111), and the second fixing holes correspond to the first fixing holes (112).

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