A vacuum infusion mould for fibre reinforced resin

Abstract

The utility model discloses a kind of vacuum impregnation mould of fiber reinforced resin, belong to vacuum impregnation mould technical field, the mould includes mould shell, sealing cover, flow regulating mechanism and quick-release mechanism, flow regulating mechanism is driven the relative rotation of rotating plate and fixed guide plate by handle, gear set to adjust resin flow;Quick-release mechanism is separated by the cooperation and separation of wedge block and sliding block linked with sealing cover, the quick locking and unlocking of sealing cover is realized, and, handle is driven rotating plate by the transmission of conical gear one and conical gear two, rotating plate and fixed guide plate are combined by the mode of relative rotation to adjust resin flow;Meanwhile, the movement of sealing cover can drive wedge block and sliding block mutually cooperate or separate.The utility model can accurately control resin flow, improve impregnation quality, and realized quick demoulding, significantly improved production efficiency and operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of vacuum impregnation mold technology, and in particular to a vacuum impregnation mold for fiber-reinforced resin. Background Technology

[0002] Fiber-reinforced resin composites have been widely used in aerospace, rail transportation, wind power generation and other fields due to their excellent properties such as light weight and high strength. Vacuum impregnation molding process is one of the important methods for preparing such composites. This process uses a vacuum pump to generate negative pressure in a closed mold cavity to press liquid resin into the pre-laid fiber-reinforced material.

[0003] In traditional vacuum impregnation processes, mold design plays a decisive role in the quality of the final product and production efficiency. However, existing impregnation molds often have structural shortcomings. Firstly, the resin injection process typically relies on external valves or pumping systems to control the flow rate. The mold itself lacks integrated, precise flow regulation capabilities, making it difficult for operators to adjust the resin flow rate accurately and in real-time according to changes in the size, shape, or process window of the part. This can easily lead to uneven resin impregnation, resulting in dry spots or resin-rich areas, affecting product performance. Secondly, after the resin has cured in the mold, demolding becomes a critical step. Traditional molds often use bolts or clips for locking, requiring individual disassembly during demolding. This process is cumbersome, time-consuming, and labor-intensive. Especially for large parts, demolding often becomes the bottleneck of the entire production cycle, severely restricting the improvement of production efficiency.

[0004] Therefore, this utility model proposes a vacuum impregnation mold for fiber-reinforced resin to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the vacuum impregnation mold of fiber reinforced resin, such as the difficulty in accurately controlling the resin injection flow rate and the cumbersome and inefficient demolding process after curing, this utility model aims to provide a vacuum impregnation mold of fiber reinforced resin with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a vacuum impregnation mold for fiber-reinforced resin, including: a mold shell, a sealing cover detachably disposed on the mold shell; a flow regulating mechanism and a quick-release mechanism.

[0007] The flow regulation mechanism includes a handle, a bevel gear one, a bevel gear two, a rotating plate, and a fixed guide plate; the quick-release mechanism includes a wedge block and a sliding block.

[0008] Furthermore, the handle drives the rotating plate through the transmission of bevel gear one and bevel gear two. The rotating plate and the fixed guide plate are combined by relative rotation to adjust the resin flow. At the same time, the movement of the sealing cap can drive the wedge block and the sliding block to cooperate or separate, so as to lock or unlock the sealing cap.

[0009] Preferably, the quick-release mechanism further includes a fixing plate fixedly connected to the sealing cover, and a wedge block connected to the fixing plate.

[0010] Preferably, the quick-release mechanism also includes a hollow column and a spring; the wedge block presses against the sliding block, causing the sliding block to compress the spring and slide into the hollow column.

[0011] Preferably, the quick-release mechanism also includes a U-shaped plate, which is used to fix the hollow column.

[0012] Preferably, the mold further includes an injection tube, a fixed guide plate, and a rotating plate disposed on the flow channel of the injection tube.

[0013] Preferably, the mold also includes a vacuum tube communicating with the mold shell, and a vacuum pump connected to the vacuum tube.

[0014] Preferably, the mold also includes a resin storage tank connected to the injection tube.

[0015] Preferably, the interior of the mold shell contains a porous material.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem in the prior art that the resin injection flow rate is difficult to adjust precisely according to process requirements by setting a flow adjustment mechanism consisting of a handle, a bevel gear set, a rotating plate and a fixed guide plate. It achieves the technical effect of conveniently and accurately controlling the resin flow rate, improving the product impregnation quality and process adaptability.

[0018] 2. This utility model solves the problems of cumbersome, time-consuming, labor-intensive, and inefficient demolding process after mold curing in the prior art by setting a quick-release mechanism composed of wedge blocks, sliding blocks, springs, and other components. It achieves the technical effect of quickly and effortlessly opening the mold, significantly improving production efficiency and ease of operation.

[0019] 3. This utility model solves the problems of single function and low degree of automation in the prior art by integrating the flow regulation mechanism and quick release mechanism into an integrated mold design, achieving the technical effect of compact structure, complete function and easy operation, and improving the overall practicality and reliability of the equipment. Attached Figure Description

[0020] Figure 1This is a perspective view of the front side of the mold shell of a vacuum impregnation mold for fiber-reinforced resin proposed in this utility model.

[0021] Figure 2 This is a partial structural exploded view of the fixing plate of a vacuum impregnation mold for fiber-reinforced resin proposed in this utility model.

[0022] Figure 3 This is a partial structural diagram of the sliding block of a vacuum impregnation mold for fiber-reinforced resin proposed in this utility model;

[0023] Figure 4 This is a partial structural diagram of the bevel gear of a vacuum impregnation mold for fiber-reinforced resin proposed in this utility model.

[0024] Legend:

[0025] 1. Mold shell; 2. Quick release mechanism; 201. Fixing plate; 202. Wedge block; 203. U-shaped plate; 204. Hollow column; 205. Spring; 206. Sliding block; 3. Sealing cover; 4. Vacuum tube; 5. Vacuum pump; 6. Injection tube; 7. Storage tank; 8. Handle; 9. Bevel gear one; 10. Bevel gear two; 11. Rotating plate; 12. Fixing guide plate; 13. Porous material. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example:

[0028] Please refer to Figures 1 to 4 This utility model provides a vacuum impregnation mold for fiber-reinforced resin, which aims to solve the problems of difficult and inaccurate control of resin flow and low demolding efficiency after curing in existing vacuum impregnation molds for fiber-reinforced resin.

[0029] like Figure 1 and Figure 2 As shown, a vacuum impregnation mold for fiber-reinforced resin includes a mold shell 1 and a sealing cap 3 that is detachably disposed on the mold shell 1.

[0030] To solve the above-mentioned technical problems, the technical solution of this embodiment is that the vacuum impregnation mold of the fiber reinforced resin further includes a flow adjustment mechanism and a quick release mechanism 2, and the flow adjustment mechanism and quick release mechanism 2 form a specific structural fit and connection relationship with the aforementioned mold shell 1 and sealing cover 3.

[0031] Please refer to Figure 1 , Figure 3 and Figure 4 The structure will be explained in detail below:

[0032] The mold is equipped with a flow regulation mechanism, which includes a handle 8, a first bevel gear 9, a second bevel gear 10, a rotating plate 11, and a fixed guide plate 12. The handle 8 is fixedly connected to the rotating shaft of the first bevel gear 9. The teeth of the first bevel gear 9 and the second bevel gear 10 mesh with each other to form a transmission relationship. The output shaft of the second bevel gear 10 is fixedly connected to the rotating plate 11. The rotating plate 11 can rotate around its axis and is partially overlapped with the fixed guide plate 12. By rotating the handle 8, the rotating plate 11 can be driven to rotate relative to the fixed guide plate 12 through the transmission of the first bevel gear 9 and the second bevel gear 10, thereby changing the overlapping area between the two and achieving the purpose of regulating the resin flow.

[0033] Meanwhile, the mold is also equipped with a quick-release mechanism 2, which includes a wedge block 202 and a sliding block 206. The wedge block 202 is linked with the sealing cover 3. The sliding block 206 is slidably mounted on the mold shell 1. The wedge-shaped inclined surface of the wedge block 202 cooperates with the inclined surface of the sliding block 206. When the sealing cover 3 is closed, the wedge block 202 can wedge into and push the sliding block 206 to lock the sealing cover 3. When the sealing cover 3 is opened, the wedge block 202 can disengage from the sliding block 206 to achieve quick unlocking.

[0034] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0035] In a preferred embodiment, the quick-release mechanism 2 also includes a fixing plate 201, which is integrally formed or welded to the sealing cover 3. The wedge block 202 is fixedly connected to the lower surface of the fixing plate 201, so that when the sealing cover 3 is lifted upward, the wedge block 202 can be stably driven to move upward through the fixing plate 201.

[0036] In another preferred embodiment, the quick-release mechanism 2 further includes a hollow column 204 and a spring 205. The hollow column 204 is fixedly mounted on the mold shell 1, and a cavity is formed inside it. A sliding block 206 is disposed on one side of the hollow column 204. The two ends of the spring 205 abut against the inner wall of the hollow column 204 and the sliding block 206, respectively. When the wedge block 202 presses the sliding block 206, the sliding block 206 can compress the spring 205 and slide into the internal cavity of the hollow column 204.

[0037] In another preferred embodiment, the quick-release mechanism 2 further includes a U-shaped plate 203, which spans and is fixed between the two hollow columns 204 to enhance the installation stability of the hollow columns 204.

[0038] In a preferred embodiment, the mold also includes a glue injection tube 6, and the rotating plate 11 and the fixed guide plate 12 in the flow regulation mechanism together constitute a variable throttle valve, which is connected in series on the flow channel of the glue injection tube 6.

[0039] In another preferred embodiment, the mold also includes a vacuum tube 4 and a vacuum pump 5. One end of the vacuum tube 4 is connected to the internal cavity of the mold shell 1, and the other end is connected to the air extraction port of the vacuum pump 5.

[0040] In another preferred embodiment, in conjunction with the aforementioned injection tube 6, the mold also includes a resin storage tank 7, the outlet of which is connected to the inlet of the injection tube 6 via a pipeline.

[0041] In a preferred embodiment, the internal cavity of the mold shell 1 is used to accommodate the porous material 13, and the injected resin is used to impregnate the porous material 13.

[0042] Working principle: The air inside the mold shell 1 is extracted along the vacuum tube 4 by the vacuum pump 5, so that a vacuum environment is formed inside the mold shell 1. Then, the resin is introduced into the mold shell 1 through the storage tank 7 along the injection tube 6, and gradually comes into uniform contact with the porous material 13. The handle 8 is turned, which drives the first bevel gear 9 and the second bevel gear 10 to rotate at the same time. The second bevel gear 10 drives the rotating plate 11 to rotate, so that the overlap between the rotating plate 11 and the fixed guide plate 12 is different, so that the flow rate of the resin can be adjusted according to the needs.

[0043] Once curing is complete, when demolding is required, the mold shell 1 can be quickly opened using the quick-release mechanism 2. By pulling the sealing cover 3 upwards with the handle, the fixing plate 201 and the wedge block 202 move upwards. The wedge block 202 compresses the sliding blocks 206 on both sides, causing the sliding blocks 206 on both sides to compress the springs 205 respectively, so that the sliding blocks 206 slide to the inner wall of the hollow column 204. At the same time, the hollow columns 204 on both sides are fixed by the U-shaped plate 203, which can detach the wedge block 202 from the sliding block 206, thus achieving the function of quickly opening the sealing cover 3.

Claims

1. A vacuum impregnation mold for fiber-reinforced resin, comprising: Mold shell (1) and sealing cap (3) detachably covering the mold shell (1); The mold is characterized in that it further includes a flow regulating mechanism, which includes a handle (8), a bevel gear one (9) connected to the handle (8), a bevel gear two (10) meshing with the bevel gear one (9), a rotating plate (11) driven by the bevel gear two (10), and a fixed guide plate (12) cooperating with the rotating plate (11). The relative rotation between the rotating plate (11) and the fixed guide plate (12) can regulate the flow rate of resin injected into the mold shell (1). And a quick-release mechanism (2), the quick-release mechanism (2) includes a wedge block (202) that is linked with the sealing cover (3), and a sliding block (206) disposed on the mold shell (1) and detachably engaged with the wedge block (202), wherein the movement of the sealing cover (3) can drive the wedge block (202) to engage or disengage with the sliding block (206) to lock or unlock the sealing cover (3).

2. The vacuum impregnation mold for fiber-reinforced resin according to claim 1, characterized in that, The quick-release mechanism (2) also includes a fixing plate (201) fixedly connected to the sealing cover (3), the wedge block (202) is connected to the fixing plate (201), and the sealing cover (3) drives the wedge block (202) to move through the fixing plate (201).

3. The vacuum impregnation mold for fiber-reinforced resin according to claim 1, characterized in that, The quick-release mechanism (2) also includes a hollow column (204) into which the sliding block (206) slides and a spring (205) for applying a restoring force to the sliding block (206). The wedge block (202) presses against the sliding block (206), causing the sliding block (206) to compress the spring (205) and slide into the hollow column (204).

4. The vacuum impregnation mold for fiber-reinforced resin according to claim 3, characterized in that, The quick-release mechanism (2) also includes a U-shaped plate (203) for fixing the hollow column (204).

5. The vacuum impregnation mold for fiber-reinforced resin according to claim 1, characterized in that, The mold also includes a glue injection tube (6), and the fixed guide plate (12) and the rotating plate (11) are disposed on the flow channel of the glue injection tube (6).

6. The vacuum impregnation mold for fiber-reinforced resin according to claim 1, characterized in that, The mold also includes a vacuum tube (4) communicating with the mold shell (1) and a vacuum pump (5) connected to the vacuum tube (4).

7. The vacuum impregnation mold for fiber-reinforced resin according to claim 5, characterized in that, The mold also includes a resin storage tank (7) connected to the injection tube (6).

8. The vacuum impregnation mold for fiber-reinforced resin according to claim 1, characterized in that, The interior of the mold shell (1) contains a porous material (13).

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