Carbon fiber composite material annular T-shaped rib forming die

Abstract

The utility model relates to the technical field of carbon fiber composite material forming, in particular to a carbon fiber composite material annular T-shaped rib forming mold which is good in rigidity, low in cost, easy to turn over, high in production efficiency and easy to demold, the section of a forming cavity is in a T shape, and the forming cavity is arranged in the circumferential direction of an upper mold body and a lower mold body. Step structures matched with each other are arranged at the joint of the upper mold body and the lower mold body, the upper mold body and the lower mold body are respectively connected with the upper mold platform and the lower mold platform through bolts, a demolding jackscrew hole is formed in the upper mold body or the lower mold body, and a demolding bolt for separating the upper mold body from the lower mold body is arranged in the demolding jackscrew hole.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber composite material molding, in particular to a carbon fiber composite material annular T-shaped rib molding die with good rigidity, low cost, easy turnover, high production efficiency and easy demoulding. Background Art

[0002] Carbon fiber composites have higher strength and stiffness than traditional materials, and are lightweight, which helps reduce structural loads. They are highly resistant to environmental factors such as water, chemicals, and climate change. They can be designed as needed to achieve complex structures and shapes, thereby improving product functionality and performance. Therefore, carbon fiber composites are widely used in various fields such as aerospace, shipbuilding, machining, and rail transportation.

[0003] Composite material T-shaped reinforcement structures enhance the overall structure of the product and have excellent bending and shear properties. They are widely used in main load-bearing applications such as aircraft and ships. However, traditional T-shaped reinforcements have problems during the laying and forming process, such as difficulty in flipping the forming mold, difficulty in pasting vacuum bags after mold closing, and difficulty in demolding after curing. Summary of the Invention

[0004] In view of the shortcomings and deficiencies in the prior art, the utility model proposes a carbon fiber composite material annular T-shaped rib forming die which has good rigidity, low cost, easy turnover, high production efficiency and easy demoulding.

[0005] The utility model is achieved through the following measures:

[0006] A carbon fiber composite material annular T-shaped rib forming mold is provided with an annular mold body, the annular mold body includes an annular upper mold body and a lower mold body, the upper mold body and the lower mold body are buckled together to form a forming cavity, and it is characterized in that the cross-section of the forming cavity is T-shaped and is arranged along the circumference of the upper mold body and the lower mold body, and the junction of the upper mold body and the lower mold body is provided with a step structure that cooperates with each other, and the upper mold body and the lower mold body are respectively connected to the upper mold platform and the lower mold platform by bolts, and a demolding screw hole is provided on the upper mold body or the lower mold body, and a demolding bolt for separating the upper mold body and the lower mold body is provided in the demolding screw hole.

[0007] The upper mold platform and the lower mold platform of the utility model both have a flat plate-shaped main body, and are provided with hanging rings on the upper mold platform and the lower mold platform for facilitating the flipping of the upper mold platform or the lower mold platform. The diameters of the upper mold platform and the lower mold platform are larger than the diameters of the upper mold body and the lower mold body, so that after the upper mold body or the lower mold body is fixed on the upper mold platform or the lower mold platform, the peripheral surfaces of the upper mold body and the lower mold body are located in the groove formed by the edges of the upper mold platform and the lower mold platform, so that the molding cavity can play a corresponding role.

[0008] In the present invention, a sealing ring is provided between the upper mold body and the lower mold body. Furthermore, the sealing ring is located on the connecting plane of the upper mold body and the lower mold body to improve the sealing effect after the upper mold body and the lower mold body are closed.

[0009] The surface of the upper die platform or the lower die platform of the utility model is provided with more than two hanging rings.

[0010] The upper mold body and the lower mold body of the utility model are made of Q235 steel and are machined as a whole, with high strength and surface accuracy. A sealing groove is provided on the connecting plane of the upper mold body and the lower mold body, and a sealing strip is installed in the sealing groove to play a sealing role; the sealing strip is made of high-temperature resistant silicone rubber and plays a sealing role when the product is cured.

[0011] When the utility model is working, the upper mold body is connected to the upper mold platform by bolts, and the lower mold body is connected to the lower mold platform by bolts. The two lifting rings on the upper mold platform are lifted by a gantry truck to flip the upper mold, and layers are laid separately on the lower mold and the flipped upper mold. When laying layers, vacuum bags are pasted on the upper / lower mold flat platforms to vacuum pre-compact the product. After the laying of layers on the upper / lower molds is completed, the two lifting rings on the upper mold platform are lifted by a gantry truck to flip the upper mold. After the upper mold is flipped, it is lifted above the lower mold, the upper and lower molds are closed and fixed with bolts. Continue to lay the remaining layers after the mold is formed. After all the layers are laid, paste the final vacuum bag for curing. When pasting the final vacuum bag, only paste the area between the outer sides of the two flat platforms, and seal the inside with a sealing strip; after curing, remove the upper mold platform, screw the bolts into the top screw holes of the upper mold body until the upper mold body and the lower mold body are loose and a gap appears, install the lifting ring on the upper mold body, and use a gantry to lift the upper mold body. If the upper mold body cannot be completely lifted, use auxiliary tools to tilt the upper mold body from the demolding groove to completely separate the upper mold and the lower mold to remove the product.

[0012] The beneficial effects and advantages of the present invention are as follows: (1) The structure is simple, the rigidity is high, and it is easy to install and disassemble. (2) All components are made of conventional steel, finished steel pipes and standard parts, with a short manufacturing cycle and low cost. (3) The upper and lower molds can be laid at the same time, and the upper mold can be easily flipped, which can improve production efficiency, save labor, and have high safety. (4) The sealing strip is used to seal the inside of the mold, and the vacuum bag is only pasted on the outside. Pasting the vacuum bag is quick, convenient and efficient. (5) There are demoulding screw holes and demoulding grooves for demoulding, which makes demoulding convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 It is a cross-sectional view of the lower mold of the present utility model.

[0014] Attachment Figure 2 It is a sectional view of the overall structure of the utility model.

[0015] Attachment Figure 3It is a cross-sectional view of the overall structure of the utility model from another angle.

[0016] Attachment Figure 4 It is a cross-sectional view of the overall structure of the utility model from another angle.

[0017] Attachment Figure 5 It is a schematic diagram of the utility model in the demoulding state.

[0018] Figure numerals: composite material annular T-shaped rib 1, upper mold body 2, lower mold body 3, upper mold platform 4, lower mold platform 5, bolts 6 for connecting the upper mold body and the lower mold body, lifting ring 7, sealing strip 8, fastening bolt 9, demoulding bolt 10, molding cavity 11. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] As attached Figure 1 、 2 As shown in Figure 3, the utility model proposes a carbon fiber composite material annular T-shaped rib forming mold, which is provided with an annular mold body, and the annular mold body includes an annular upper mold body 2 and a lower mold body 3. The upper mold body 2 and the lower mold body 3 are buckled together to form a forming cavity 11. The cross-section of the forming cavity 11 is T-shaped and is arranged along the circumference of the upper mold body 2 and the lower mold body 3. The joint of the upper mold body 2 and the lower mold body 3 is provided with a step structure that cooperates with each other. The upper mold body and the lower mold body are respectively connected to the upper mold platform 4 and the lower mold platform 5 by bolts. A demolding screw hole is provided on the upper mold body 2 or the lower mold body 3, and a demolding bolt 10 for separating the upper mold body and the lower mold body is provided in the demolding screw hole.

[0021] The upper mold platform 4 and the lower mold platform 5 of the utility model both have a flat plate-shaped main body, and are provided with a hanging ring 7 on the upper mold platform 4 and the lower mold platform 5 for facilitating the flipping of the upper mold platform 4 or the lower mold platform 5. The diameters of the upper mold platform 4 and the lower mold platform 5 are larger than the diameters of the upper mold body 2 and the lower mold body 3, so that after the upper mold body 2 or the lower mold body 3 is fixed on the upper mold platform or the lower mold platform, the circumferential surface of the upper mold body 2 and the lower mold body 3 is located in the groove formed by the edges of the upper mold platform and the lower mold platform, so that the molding cavity 11 can play a corresponding role.

[0022] In the present invention, a sealing strip 8 is provided between the upper mold body 2 and the lower mold body 3. Furthermore, the sealing strip 8 is located on the connecting plane of the upper mold body 2 and the lower mold body 3 to improve the sealing effect after the upper mold body 2 and the lower mold body 3 are closed.

[0023] In the present invention, two or more hanging rings 7 are provided on the surface of the upper die platform 4 or the lower die platform 5 .

[0024] The upper mold body and the lower mold body of the utility model are made of Q235 steel and are machined as a whole, with high strength and surface accuracy. A sealing groove is provided on the connecting plane of the upper mold body and the lower mold body, and a sealing strip is installed in the sealing groove to play a sealing role; the sealing strip is made of high-temperature resistant silicone rubber and plays a sealing role when the product is cured.

[0025] Example:

[0026] This embodiment is a carbon fiber composite material annular T-shaped rib forming die, combined with Figure 1-Figure 5 As shown, the overall structure is a top-bottom mold form, which consists of an upper mold body, a lower mold body, an upper mold platform, a lower mold platform, bolts, lifting rings, and sealing strips; the upper mold body 2 is connected to the upper mold platform 4 by bolts 6, and the lower mold body 3 is connected to the lower mold platform by fastening bolts 9. Use a gantry to lift the two lifting rings 7 on the upper mold platform 2 to flip the upper mold, and the lower mold and the flipped upper mold are as shown. Figure 1 As shown in the figure, it is placed in the operation area, and layers are laid separately on the lower mold and the flipped upper mold. When laying, vacuum bags are pasted on the upper mold platform 4 and the lower mold platform 5 to vacuum pre-compact the product. After the laying on the upper / lower mold is completed, use a gantry truck to lift the two lifting rings marked 7 on the upper mold platform to flip the upper mold. After the upper mold is flipped, it is lifted above the lower mold, the upper and lower molds are closed and the upper and lower molds are fixed with bolts 6. After the upper and lower molds are closed, the remaining layers are continued to be laid. After all the layers are laid, the final vacuum bag is pasted and cured. When pasting the final vacuum bag, it is only pasted in the area between the outer sides of the upper mold platform and the lower mold platform, and the inside is sealed with a sealing strip 8. After curing, the upper mold platform 4 is removed, as shown in FIG. Figure 5 As shown, screw the demoulding bolt 10 into the top screw hole on the upper mold body 2 until the upper mold and the lower mold become loose and a gap appears. Install a lifting ring on the upper mold body and use a gantry to lift the upper mold body. If the upper mold body cannot be completely lifted, use an auxiliary tool to tilt the upper mold body from the demoulding groove to completely separate the upper mold and the lower mold to remove the product.

[0027] In this example, the shape and size of the upper and lower mold bodies are determined according to the product's external dimensions. The upper and lower mold bodies are made of Q235 steel and are machined as a whole. The upper and lower mold bodies are equipped with connection holes, screw holes, mold removal grooves, and sealing grooves. The sides of the mold bodies are equipped with hanging ring connection holes.

[0028] In this example, both the upper and lower mold platforms consist of two parts: a flat plate machined from Q235 steel; and a base welded from square tubes into a frame structure. The flat plate and base are welded together. The sealing strip 8 is made of high-temperature resistant silicone rubber, and the fasteners are standard parts of corresponding specifications.

[0029] The beneficial effects and advantages of the present invention are as follows: (1) The structure is simple, the rigidity is high, and it is easy to install and disassemble. (2) All components are made of conventional steel, finished steel pipes and standard parts, with a short manufacturing cycle and low cost. (3) The upper and lower molds can be laid at the same time, and the upper mold can be easily flipped, which can improve production efficiency, save labor, and have high safety. (4) The sealing strip is used to seal the inside of the mold, and the vacuum bag is only pasted on the outside. Pasting the vacuum bag is quick, convenient and efficient. (5) There are demoulding screw holes and demoulding grooves for demoulding, which makes demoulding convenient.

Claims

1. A carbon fiber composite material annular T-shaped rib forming die, comprising an annular die body, the annular die body comprising an annular upper die body and a lower die body, the upper die body and the lower die body being engaged to form a forming cavity, characterized in that: The cross-section of the molding cavity is T-shaped and is arranged along the circumference of the upper mold body and the lower mold body. A step structure that cooperates with each other is provided at the junction of the upper mold body and the lower mold body. The upper mold body and the lower mold body are respectively connected to the upper mold platform and the lower mold platform via bolts. A demolding screw hole is provided on the upper mold body or the lower mold body, and a demolding bolt for separating the upper mold body and the lower mold body is provided in the demolding screw hole.

2. The carbon fiber composite material annular T-shaped rib forming die according to claim 1, characterized in that: The upper mold platform and the lower mold platform both have a flat plate-shaped main body, and are provided with hanging rings for facilitating flipping of the upper mold platform or the lower mold platform. The diameters of the upper mold platform and the lower mold platform are larger than the diameters of the upper mold body and the lower mold body.

3. The carbon fiber composite material annular T-shaped rib forming die according to claim 1, characterized in that: A sealing ring is provided between the upper mold body and the lower mold body.

4. The carbon fiber composite material annular T-shaped rib forming die according to claim 3, characterized in that: The sealing ring is located on the connecting plane of the upper mold body and the lower mold body.

5. The carbon fiber composite material annular T-shaped rib forming die according to claim 1, characterized in that: The surface of the upper die platform or the lower die platform is provided with more than two hanging rings.

6. The carbon fiber composite material annular T-shaped rib forming die according to claim 1, characterized in that: The upper mold body and the lower mold body are made of Q235 steel and are machined as a whole. A sealing groove is provided on the connecting plane of the upper mold body and the lower mold body. A sealing strip is installed in the sealing groove to perform a sealing function. The sealing strip is made of high-temperature resistant silicone rubber.

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