CN115416270A

CN115416270A - Inner container-containing barrel winding die and manufacturing method of inner container-containing barrel

Info

Publication number: CN115416270A
Application number: CN202211199268.3A
Authority: CN
Inventors: 祝旭杰; 汤春柳; 范浩; 孔令权; 李虎
Original assignee: Jiangsu Hengshen Co Ltd
Current assignee: Jiangsu Hengshen Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-02

Abstract

The invention discloses a cylinder winding mould with an inner container and a manufacturing method of a cylinder with the inner container, belonging to the technical field of carbon fiber composite material forming process equipment, wherein the cylinder winding mould with the inner container comprises the inner container serving as a male die and a supporting device for supporting the inner container; the support device includes: the rotating shaft is arranged along the axial direction of the inner container and penetrates through the inner container; the radial support component is arranged on the rotating shaft and used for supporting the inner wall of the inner container along the radial direction of the inner container; and the axial limiting assembly is arranged on the rotating shaft and used for axially limiting the inner container. According to the invention, the liner is effectively fixed, so that the liner is directly used as the male die, the manufacturing cost of the male die is saved, the forming is simple, the manufacturing cost is saved, and the working efficiency is improved.

Description

Inner container-containing barrel winding die and manufacturing method of inner container-containing barrel

Technical Field

The invention belongs to the technical field of carbon fiber composite material forming process equipment, and particularly relates to a cylinder winding die with an inner container and a manufacturing method of a cylinder with the inner container.

Background

The winding process is suitable for manufacturing hollow, round or oval structural members, is a production technology which has the advantages of high production speed, economic and reasonable layering mode, minimized fiber cost and no intermediate weaving process, and the linear fiber bundles can be layered along each bearing direction, so that the manufactured part has excellent structural performance.

But the mandrel male die of the large-scale winding structural part has higher cost and low manufacturing efficiency; the cylinder body winding mode containing the liner can replace a male mold with the liner, but the support and fixation of the hollow liner are difficult, so that the cylinder body winding mold containing the liner is designed.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the cylinder winding die with the inner container and the manufacturing method of the cylinder with the inner container.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the first aspect provides a cylinder winding die with an inner container, which comprises the inner container serving as a male die and a supporting device used for supporting the inner container; the support device includes: the rotating shaft is arranged along the axial direction of the inner container and penetrates through the inner container; the radial support component is arranged on the rotating shaft and used for supporting the inner wall of the inner container along the radial direction of the inner container; and the axial limiting assembly is arranged on the rotating shaft and used for axially limiting the inner container.

Further, the radial support assembly includes: the middle fixing plate is arranged on the rotating shaft; one end of each adjusting screw is mounted on the middle fixing plate, the other end of each adjusting screw is mounted with a middle supporting block, and each middle supporting block abuts against the inner wall of the inner container.

Furthermore, a plurality of adjusting screw rods are uniformly arranged along the circumferential direction of the middle fixing plate.

Furthermore, the middle fixing plate is connected with the rotating shaft through a flat key.

Furthermore, an arc-shaped end face is arranged at one end of the middle supporting block, which is contacted with the inner container.

Furthermore, the axial limiting component 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 rotatably connected with the rotating shaft and is abutted against the first positioning shaft shoulder of the rotating shaft.

Furthermore, the clamping unit comprises an end flange which is sleeved on the rotating shaft and is in threaded connection with the end nut; a plurality of kidney-shaped holes for mounting the end supporting block on the end flange are formed along the circumferential direction of the end flange; the number of the end supporting blocks is the same as that of the kidney-shaped holes.

Further, the end supporting block is connected with the end flange through a bolt.

In a second aspect, a method for manufacturing a cylinder with an inner container is provided, where the cylinder winding mold with an inner container of the first aspect is used, and the method includes: installing a radial support assembly, and supporting the radial support assembly on the inner wall of the inner container; a rotating shaft penetrates through the inner container and is connected with the radial support assembly; installing an 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 a cylinder; and after the cylinder body is solidified and molded, sequentially removing the axial limiting assembly, the rotating shaft and the radial supporting assembly to obtain the cylinder body containing the inner container.

Compared with the prior art, the invention has the following beneficial effects:

(1) The radial support component is arranged on the rotating shaft and used for supporting the inner wall of the inner container along the radial direction of the inner container; the axial limiting assembly is arranged on the rotating shaft and used for axially limiting the inner container, so that the inner container is effectively fixed, the inner container is directly used as a male mold, the manufacturing cost of the male mold is saved, the molding is simple, the manufacturing cost is saved, and the working efficiency is improved;

(2) According to the invention, the inner container is used as the male die and is reliably supported, and the carbon fiber prepreg is directly wound on the outer wall of the inner container to manufacture the cylinder, so that the manufacturing process is simplified, and the manufacturing efficiency of the cylinder containing the inner container is improved; on the other hand, the cylinder body is directly formed on the outer wall of the inner container, so that the connection tightness between the cylinder body and the inner container is improved, the integral strength of a finished product is improved, and the stress environment of the cylinder body with the inner container is optimized.

Drawings

Fig. 1 is a schematic view of an overall structure of a cylinder winding mold with an inner container according to an embodiment of the present invention;

FIG. 2 is a schematic longitudinal cross-section of FIG. 1;

fig. 3 is a schematic view of the overall structure of the liner in fig. 1 and 2;

FIG. 4 is a first schematic structural diagram of a clamping unit according to an embodiment of the present invention;

FIG. 5 is a second schematic structural view of a clamping unit according to an embodiment of the present invention;

in the figure: 1. a rotating shaft; 11. a first locating shoulder; 2. an end nut; 3. an end flange; 31. a kidney-shaped hole; 4. a middle fixing plate; 5. a middle supporting block; 6. adjusting the screw rod; 7. an end support block; 8. an inner container.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows:

as shown in fig. 1 to 5, a cylinder winding mold with an inner container comprises a rotating shaft 1, an end nut 2, an end flange 3, an intermediate fixing plate 4, an intermediate supporting block 5, an adjusting screw 6, an end supporting block 7 and an inner container 8.

In this embodiment, the liner 8 serving as the male mold may be a part of the molded cylinder and finally remain in the molded cylinder, or may be a temporary liner only used for auxiliary molding, and the cylinder is removed after molding.

The support device for supporting the inner container 8 comprises: the rotating shaft 1 is arranged along the axial direction of the inner container 8 and penetrates through the inner container 8; a radial support assembly which is arranged on the rotating shaft 1 and is used for supporting the inner wall of the inner container 8 along the radial direction of the inner container 8; an axial limiting component which is arranged on the rotating shaft 1 and used for axially limiting the inner container 8.

The radial supporting component comprises a middle fixing plate 4 and four adjusting screws 6 which are arranged on the rotating shaft 1, one end of each adjusting screw 6 is arranged on the middle fixing plate 4, a middle supporting block 5 is arranged at the other end of each adjusting screw 6, and each middle supporting block 5 abuts against the inner wall of the inner container 8 respectively. The four adjusting screws 6 are uniformly arranged along the circumferential direction of the middle fixing plate 4. The adjusting screw 6 is a nut-screw mechanism, the height of the middle supporting block 5 can be adjusted by rotating a nut, and the inner container 8 can be supported and fixed after the middle supporting block 5 is adjusted to a proper position. The middle fixing plate 4 is connected with the rotating shaft 1 through a flat key. An arc-shaped end face is arranged at one end of the middle supporting block 5, which is in contact with the liner 8, and is used for increasing the contact area of the middle supporting block 5 and the liner 8 and avoiding the deformation of the liner 8 due to overlarge stress.

The axial limiting assembly comprises a clamping unit for clamping the opening edge of the inner container 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 with the rotating shaft 1 and abuts against the first positioning shaft shoulder 11 of the rotating shaft 1. The clamping unit comprises an end flange 3, and the end flange 3 is sleeved on the rotating shaft 1 and is in threaded connection with the end nut 2; a plurality of kidney-shaped holes 31 for installing the end supporting blocks 7 on the end flange 3 are formed along the circumferential direction of the end flange 3; the number of the end supporting blocks 7 is the same as the number of the kidney holes 31. The end supporting block 7 is connected with the end flange 3 through bolts.

When the supporting device is used, the middle fixing plate 4 is firstly placed in the inner container 8, and then the middle supporting blocks 5 are symmetrically installed through the adjusting screw rods 6 and the nuts. The height of the middle supporting block 5 can be adjusted by rotating the nut, the inner container 8 can be supported and fixed after the middle supporting block 5 is adjusted to a proper position, and then the rotating shaft 1 with the flat key penetrates through the middle fixing plate 4.

End flange 3 has annular waist shape hole 31, be connected end support piece 7 and end flange 3 through the screw, both connect the back well, earlier with end support piece 7 remove the most inboard (end support piece 7 is covered by end flange 3 this moment), then adorn pivot 1 respectively with the end flange 3 of both sides from the both ends of pivot 1, then adjusting bolt, remove end support piece 7 to the outside, the opening border of inner bag 8 is held to the centre gripping unit, pack into end nut 2 at both ends at last and adjust and fix the relative position of centre gripping unit and

pivot

1, 8 axial direction of inner bag are also strutted fixedly this moment, can accomplish the installation of mould.

The cylinder body winding mold with the inner container replaces a traditional winding male mold with the inner container 8, a four-piece arc structure is adopted in the cylinder body winding mold, the height of the adjusting screw 6 is adjusted by matching a screw and a nut, and the inner container 8 is guaranteed to reach a proper supporting state in the circumferential direction; the end flange 3 and the end supporting block 7 are matched and supported in the axial direction. The inner container 8 is internally of a hollow structure, the end supporting blocks 7 can move up and down for a certain distance at the end flange 3 through the waist-shaped holes 31 on the end flange 3, and the end supporting blocks 7 can be ensured to extend outwards after entering the inner container 8, so that the effect of axially supporting the inner container 8 is achieved. The end nut 2 can be used as a fixed part during assembly; when demoulding, the end nut 8 is reversely screwed to drive the end flange 3 to move, so that demoulding is facilitated; the die is simple in overall structure, parts are convenient to machine and manufacture, a traditional male die winding die is omitted, and machining cost is reduced.

The second embodiment:

based on the first embodiment, the embodiment provides a manufacturing method of a cylinder body with an inner container, which comprises the following steps:

mounting a radial support component, and supporting the radial support component on the inner wall of the inner container 8;

the rotating shaft 1 penetrates through the inner container 8 and is connected with the radial support assembly;

installing an axial limiting assembly, and axially limiting the inner container 8 through the axial limiting assembly;

winding carbon fiber prepreg on the outer wall of the inner container 8 to manufacture a cylinder;

and after the cylinder body is cured and molded, sequentially removing the axial limiting assembly, the rotating shaft 1 and the radial supporting assembly to obtain the cylinder body with the inner container.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A cylinder winding mould with an inner container is characterized by comprising the inner container (8) used as a male mould and a supporting device used for supporting the inner container (8);

the support device includes:

the rotating shaft (1) is arranged along the axial direction of the inner container (8) and penetrates through the inner container (8);

the radial support component is arranged on the rotating shaft (1) and used for supporting the inner wall of the inner container (8) along the radial direction of the inner container (8);

and the axial limiting component is arranged on the rotating shaft (1) and used for axially limiting the inner container (8).

2. The liner-containing drum winding mold of claim 1, wherein the radial support assembly comprises:

a middle fixing plate (4) arranged on the rotating shaft (1);

one end of each adjusting screw rod (6) is installed on the middle fixing plate (4), the other end of each adjusting screw rod (6) is provided with a middle supporting block (5), and each middle supporting block (5) abuts against the inner wall of the inner container (8) respectively.

3. The cylinder winding die with the liner as claimed in claim 2, wherein the adjusting screws (6) are uniformly arranged along the circumference of the middle fixing plate (4).

4. The cylinder winding die with the inner container as claimed in claim 2, wherein the middle fixing plate (4) is connected with the rotating shaft (1) through a flat key.

5. The winding die for the cylinder with the liner as claimed in claim 2, wherein an arc-shaped end face is arranged at one end of the middle supporting block (5) contacting with the liner (8).

6. The cylinder winding die with the inner container as claimed in claim 1, wherein the axial limiting assembly comprises a clamping unit for clamping the opening edge of the inner container (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 with the rotating shaft (1) and is abutted against a first positioning shaft shoulder (11) of the rotating shaft (1).

7. The cylinder winding die with the liner as claimed in claim 6, wherein the clamping unit comprises an end flange (3), the end flange (3) is sleeved on the rotating shaft (1) and is in threaded connection with the end nut (2); a plurality of kidney-shaped holes (31) used for installing the end supporting blocks (7) on the end flange (3) are formed along the circumferential direction of the end flange (3); the number of the end supporting blocks (7) is the same as that of the waist-shaped holes (31).

8. The winding die for the cylinder with the inner container as claimed in claim 7, wherein the end support block (7) is connected with the end flange (3) through a bolt.

9. A method for manufacturing a cylinder with an inner container is characterized in that the cylinder winding die with the inner container, which is disclosed by any one of claims 1 to 8, is used, and comprises the following steps:

mounting a radial support assembly, and supporting the radial support assembly on the inner wall of the inner container (8);

a rotating shaft (1) penetrates through the inner container (8) and is connected with the radial support assembly;

installing an axial limiting assembly, and axially limiting the inner container (8) through the axial limiting assembly;

winding carbon fiber prepreg on the outer wall of the inner container (8) to manufacture a cylinder;

and after the cylinder body is solidified and molded, sequentially removing the axial limiting assembly, the rotating shaft (1) and the radial supporting assembly to obtain the cylinder body containing the inner container.