A winding mold for a liner-containing cylinder body and a method for manufacturing a liner-containing cylinder body

Abstract

The application discloses a kind of inner bag's cylinder winding mould and the manufacturing method of inner bag cylinder in the technical field of carbon fiber composite material forming process equipment, and the inner bag's cylinder winding mould includes inner bag as male die and the support device for supporting the inner bag;The support device includes: along the axial direction of the inner bag is arranged, and penetrates the rotating shaft of the inner bag;Radial support assembly for being supported on the inner wall of the inner bag along the radial direction of the inner bag is installed on the rotating shaft;Axial limiting assembly for being axially limited to the inner bag is installed on the rotating shaft.The application realizes direct use of inner bag as male die by effectively fixing inner bag, saves the manufacturing cost of male die, and is simple to form, saves manufacturing cost, improves work efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of carbon fiber composite material forming process equipment, and particularly relates to a cylinder winding mold containing an inner bag and a manufacturing method of a cylinder containing an inner bag. BACKGROUND

[0002] The winding process is suitable for manufacturing hollow, circular or elliptical structural members, is a production technology with fast production speed, economical and reasonable layering mode, minimized fiber cost, no intermediate braiding process, and linear fiber bundles can be layered along various bearing directions, and the manufactured members have excellent structural performance.

[0003] However, the core shaft male mold of a large winding structural member has high cost and low manufacturing efficiency, and the winding method of the cylinder containing the inner bag can use the inner bag to replace the male mold, but the support and fixation of the hollow inner bag is a difficulty, therefore, the winding mold of the cylinder containing the inner bag is designed. SUMMARY

[0004] To solve the problems in the prior art, the present application provides a winding mold of a cylinder containing an inner bag and a manufacturing method of a cylinder containing an inner bag, which effectively fixes the inner bag, directly uses the inner bag as a male mold, saves the manufacturing cost of the male mold, is simple to form, saves the manufacturing cost, and improves the work efficiency.

[0005] To achieve the above object, the technical scheme adopted by the present application is as follows:

[0006] The first aspect provides a winding mold of a cylinder containing an inner bag, which comprises the inner bag as a male mold and a support device for supporting the inner bag; the support device comprises: a rotating shaft arranged along the axial direction of the inner bag and penetrating through the inner bag; a radial support assembly mounted on the rotating shaft and used for supporting the inner wall of the inner bag in the radial direction of the inner bag; and an axial limiting assembly mounted on the rotating shaft and used for limiting the axial position of the inner bag.

[0007] Further, the radial support assembly comprises: an intermediate fixed plate mounted on the rotating shaft; a plurality of adjusting screws, one end of each adjusting screw being mounted on the intermediate fixed plate, and the other end of each adjusting screw being provided with an intermediate support block, and each intermediate support block abutting against the inner wall of the inner bag.

[0008] Further, the plurality of adjusting screws are uniformly arranged along the circumferential direction of the intermediate fixed plate.

[0009] Further, the intermediate fixed plate and the rotating shaft are connected through a flat key.

[0010] Further, an arc-shaped end face is arranged at the end of the intermediate support block in contact with the inner bag.

[0011] Further, the axial limiting assembly comprises a clamping unit for clamping the opening edge of the inner container and an end nut for adjusting the relative position of the clamping unit and the rotating shaft; the end nut is rotationally connected with the rotating shaft and abuts against the first positioning shaft shoulder of the rotating shaft.

[0012] Further, the clamping unit comprises an end flange, the end flange is sleeved on the rotating shaft and is threadedly connected with the end nut; a plurality of waist-shaped holes for mounting end support blocks on the end flange are arranged along the circumference of the end flange; the number of the end support blocks is the same as that of the waist-shaped holes.

[0013] Further, the end support blocks are connected with the end flange through bolts.

[0014] In the second aspect, a manufacturing method of the inner container-containing cylinder is provided, and the inner container-containing cylinder winding mold of the first aspect is used, and the method comprises the following steps: installing the radial support assembly, supporting the radial support assembly on the inner wall of the inner container; passing the rotating shaft through the inner container and connecting the rotating shaft with the radial support assembly; installing the axial limiting assembly and axially limiting the inner container through the axial limiting assembly; winding carbon fiber prepreg on the outer wall of the inner container to manufacture the cylinder; after the cylinder is solidified and formed, sequentially removing the axial limiting assembly, the rotating shaft and the radial support assembly to obtain the inner container-containing cylinder.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] (1) The radial support assembly installed on the rotating shaft and used for supporting the inner wall of the inner container in the radial direction of the inner container, and the axial limiting assembly installed on the rotating shaft and used for axially limiting the inner container, effectively fix the inner container, so that the inner container is directly used as a male mold, the manufacturing cost of the male mold is saved, the forming is simple, the manufacturing cost is saved, and the working efficiency is improved.

[0017] (2) The inner container is directly used as a male mold and reliably supported, and the carbon fiber prepreg is directly wound on the outer wall of the inner container to manufacture a cylinder, which simplifies the manufacturing process, improves the manufacturing efficiency of the inner container-containing cylinder, improves the connection tightness between the cylinder and the inner container, improves the overall strength of the finished product, and optimizes the stress environment of the inner container-containing cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the overall structure of the inner container-containing cylinder winding mold provided by the embodiment of the present application;

[0019] Figure 2 is a longitudinal sectional view of Figure 1 ;

[0020] Figure 3 yes Figure 1 , Figure 2 A schematic diagram of the overall structure of the inner liner;

[0021] Figure 4 This is a schematic diagram of the clamping unit in an embodiment of the present invention. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the clamping unit in an embodiment of the present invention. Figure 2 ;

[0023] In the diagram: 1. Rotating shaft; 11. First positioning shoulder; 2. End nut; 3. End flange; 31. Waist-shaped hole; 4. Intermediate fixing plate; 5. Intermediate support block; 6. Adjusting screw; 7. End support block; 8. Inner liner. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0025] Example 1:

[0026] like Figures 1-5 As shown, a cylindrical winding mold with an inner liner includes a rotating shaft 1, an end nut 2, an end flange 3, an intermediate fixing plate 4, an intermediate support block 5, an adjusting screw 6, an end support block 7, and an inner liner 8.

[0027] In this embodiment, the inner liner 8, which serves as the male mold, can be part of the molding cylinder and ultimately remain inside the molding cylinder, or it can be a temporary inner liner used only to assist in molding and removed after the cylinder is molded.

[0028] The support device for supporting the inner liner 8 includes: a rotating shaft 1 arranged along the axial direction of the inner liner 8 and passing through the inner liner 8; a radial support assembly mounted on the rotating shaft 1 for radially supporting the inner wall of the inner liner 8; and an axial limiting assembly mounted on the rotating shaft 1 for axially limiting the inner liner 8.

[0029] The radial support assembly includes an intermediate fixed plate 4 mounted on the rotating shaft 1 and four adjusting screws 6. One end of each adjusting screw 6 is mounted on the intermediate fixed plate 4, and the other end is mounted on an intermediate support block 5. Each intermediate support block 5 abuts against the inner wall of the inner liner 8. The four adjusting screws 6 are evenly distributed along the circumference of the intermediate fixed plate 4. The adjusting screws 6 are nut-screw mechanisms; the height of the intermediate support blocks 5 can be adjusted by rotating the nuts. After all the intermediate support blocks 5 are adjusted to the appropriate positions, the inner liner 8 can be supported and fixed. The intermediate fixed plate 4 is connected to the rotating shaft 1 by a flat key. An arc-shaped end face is provided at the end of the intermediate support block 5 that contacts the inner liner 8 to increase the contact area between the intermediate support block 5 and the inner liner 8, preventing the inner liner 8 from deforming due to excessive force.

[0030] The axial limiting assembly includes a clamping unit for clamping the opening edge of the inner liner 8 and an end nut 2 for adjusting the relative position of the clamping unit and the rotating shaft 1. The end nut 2 is rotatably connected to the rotating shaft 1 and abuts against the first positioning shoulder 11 of the rotating shaft 1. The clamping unit includes an end flange 3, which is sleeved on the rotating shaft 1 and threadedly connected to the end nut 2. A plurality of oblong holes 31 for mounting end support blocks 7 on the end flange 3 are provided along the circumference of the end flange 3. The number of end support blocks 7 is the same as the number of oblong holes 31. The end support blocks 7 are bolted to the end flange 3.

[0031] In use, the intermediate fixing plate 4 needs to be placed into the inner liner 8 first, and then the intermediate support blocks 5 are installed symmetrically by adjusting the screws 6 and nuts. The height of the intermediate support blocks 5 can be adjusted by rotating the nuts. After the intermediate support blocks 5 are adjusted to the appropriate positions, the inner liner 8 can be supported and fixed. Then, the rotating shaft 1 with the flat key is passed through the intermediate fixing plate 4.

[0032] The end flange 3 has an circumferential waist-shaped hole 31. The end support block 7 is connected to the end flange 3 by screws. After the two are connected, the end support block 7 is moved to the innermost side (at this time, the end support block 7 is covered by the end flange 3). Then, the end flanges 3 on both sides are installed on the rotating shaft 1 from both ends. Then, the bolts are adjusted to move the end support block 7 to the outermost side. The clamping unit clamps the opening edge of the inner liner 8. Finally, the end nuts 2 are installed at both ends to adjust and fix the relative position of the clamping unit and the rotating shaft 1. At this time, the inner liner 8 is also opened and fixed in the axial direction, and the mold installation is completed.

[0033] In this embodiment, the cylindrical winding mold with an inner liner uses an inner liner 8 instead of a traditional winding male mold. The inner liner has a four-lobed arc structure, and the height of the adjusting screw 6 is adjusted using a screw and nut to ensure the inner liner 8 achieves suitable support in the circumferential direction. Axial support is provided by an end flange 3 and an end support block 7. The inner liner 8 has a hollow structure. Through the oblong hole 31 on the end flange 3, the end support block 7 can move up and down a certain distance, ensuring that the end support block 7 can extend outward after entering the inner liner 8, thus providing axial support for the inner liner 8. The end nut 2 serves as a fixing part during assembly; during demolding, reversing the tightening of the end nut 8 moves the end flange 3, facilitating demolding. The overall mold structure is simple, and the parts are easy to manufacture, eliminating the need for a traditional male winding mold and reducing processing costs.

[0034] Example 2:

[0035] Based on the cylindrical winding mold with an inner liner described in Embodiment 1, this embodiment provides a method for manufacturing a cylindrical body with an inner liner, including:

[0036] Install the radial support assembly and support it on the inner wall of the inner liner 8;

[0037] The rotating shaft 1 passes through the inner liner 8 and is connected to the radial support assembly;

[0038] Install the axial limiting component and use the axial limiting component to axially limit the inner liner 8;

[0039] The inner liner 8 is wrapped with carbon fiber prepreg to form the cylinder;

[0040] After the cylinder body has solidified and formed, the axial limiting component, rotating shaft 1 and radial support component are removed in sequence to obtain the cylinder body containing the inner liner.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A cylindrical winding mold with an inner liner, characterized in that, Includes an inner liner (8) serving as a male mold and a support device for supporting the inner liner (8); The support device includes: A rotating shaft (1) is arranged along the axial direction of the inner liner (8) and passes through the inner liner (8). A radial support assembly mounted on the rotating shaft (1) for radial support of the inner liner (8) along the inner liner (8) inner wall; An axial limiting component installed on the rotating shaft (1) for axially limiting the inner liner (8); The radial support assembly includes: An intermediate fixing plate (4) is installed on the rotating shaft (1); Several adjusting screws (6), one end of each adjusting screw (6) is mounted on the intermediate fixing plate (4), and the other end is mounted on an intermediate support block (5), each intermediate support block (5) abutting against the inner wall of the inner liner (8); The axial limiting assembly includes a clamping unit for clamping the opening edge of the inner liner (8) and an end nut (2) for adjusting the relative position of the clamping unit and the rotating shaft (1); the end nut (2) is rotatably connected to the rotating shaft (1) and abuts against the first positioning shoulder (11) of the rotating shaft (1).

2. The cylindrical winding mold with an inner liner according to claim 1, characterized in that, Several of the adjusting screws (6) are evenly arranged around the circumference of the intermediate fixed plate (4).

3. The cylindrical winding mold with an inner liner according to claim 1, characterized in that, The intermediate fixing plate (4) is connected to the rotating shaft (1) by a flat key.

4. The cylindrical winding mold with an inner liner according to claim 1, characterized in that, An arc-shaped end face is provided at the end of the intermediate support block (5) that contacts the inner liner (8).

5. The cylindrical winding mold with an inner liner according to claim 1, characterized in that, The clamping unit includes an end flange (3), which is sleeved on the rotating shaft (1) and threadedly connected to the end nut (2); a plurality of waist-shaped holes (31) for mounting end support blocks (7) on the end flange (3) are provided along the circumference of the end flange (3); the number of end support blocks (7) is the same as the number of waist-shaped holes (31).

6. The cylindrical winding mold with an inner liner according to claim 5, characterized in that, The end support block (7) is connected to the end flange (3) by bolts.

7. A method for manufacturing a cylindrical body containing an inner liner, characterized in that, Using the cylindrical winding mold with an inner liner as described in any one of claims 1 to 6, comprising: Install the radial support assembly and support the radial support assembly on the inner wall of the inner liner (8); The rotating shaft (1) passes through the inner liner (8) and is connected to the radial support assembly; Install an axial limiting component and use the axial limiting component to axially limit the inner liner (8); Carbon fiber prepreg is wound around the outer wall of the inner liner (8) to make the cylinder; After the cylinder body has solidified and formed, the axial limiting component, the rotating shaft (1) and the radial support component are removed in sequence to obtain the cylinder body containing the inner liner.

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