CN215791886U

CN215791886U - Carbon fiber composite autoclave forming die

Info

Publication number: CN215791886U
Application number: CN202121889671.XU
Authority: CN
Inventors: 王家麟; 韩波; 张温韬; 王波; 罗建宏
Original assignee: Shaanxi Aircraft Industry Co Ltd
Current assignee: Shaanxi Aircraft Industry Co Ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-11
Anticipated expiration: 2031-08-12

Abstract

The application provides a carbon-fibre composite autoclave forming die, the mould includes base 1 etc. wherein: the left side and the right side of the base 1 are both fixedly connected with inclined plates 2, two lower dies 3 are arranged above the base 1, one end of each lower die 3 facing the inclined plates 2 is provided with an inclined surface, and it is the same with swash plate 2 towards the inclined plane inclination of 3 one ends of lower mould, connecting hole one 4 has all been seted up to 3 relative one ends of two lower moulds, be provided with connecting rod one 5 between two lower moulds 3, the both ends of connecting rod one 5 all with connecting hole one 4 joint, connecting hole two 8 has been seted up towards the one end of swash plate 2 to lower mould 3, the outside of swash plate 2 is provided with connecting rod two 9, the one end of connecting rod two 9 runs through in swash plate 2 extends to connecting hole two 8 and rather than the joint, the last fixed surface of lower mould 3 is connected with side form 10, the top of side form 10 is provided with mould lid 12, mould lid 12's lower extreme fixedly connected with goes up the mould 13, apron 17 is installed in the upper end of one of them swash plate 2 through 16 rotations of connecting axle.

Description

Carbon fiber composite autoclave forming die

Technical Field

The invention relates to the technical field of composite material molds, in particular to a carbon fiber composite material autoclave forming mold.

Background

Generally speaking, the process of curing the composite material through the autoclave is a process of heating, heat preservation, cooling, pressurization and depressurization, in the heating stage, the resistance wire continuously heats the air, the fan is used as power, the air is used as a heat transfer medium, the mold and the component are continuously heated, the temperature of the component is ensured to be continuously raised, and the curing molding is completed. During the cooling, close heating device, use the water-cooling simultaneously, continuously cool down the jar interior air, the fan makes the circulation flow of air, guarantees the reduction of jar interior temperature everywhere.

In the autoclave curing process, the temperature change of the surface of the mold forming plate depends on the heat convection of the mold surface and the fluid swept-out flat plate and the heat conduction of the frame-type base and the mold forming plate, when the fluid sweeps out of the mold plate, a boundary layer is generated on the contact surface of the mold plate and the fluid, the kinetic energy is lost due to the viscosity action of the fluid, the speed in the boundary layer is reduced along the flow direction, and as a result, the thickness of the boundary layer is continuously increased along the flow direction. According to the heat convection theory, the thicker the boundary layer is, the larger the thermal resistance of heat conduction is, and the lower the heat transfer efficiency is, so that the low temperature appears at the leeward end. Another reason for the low temperature at the leeward end is that, due to the blocking effect of the windward frame base on the leeward frame base, the intensity of jet impact heat exchange is reduced along with the flow direction, so that the temperature of the leeward grid frame is lower, and the heat transferred to the forming plate is less compared with the windward end. When the autoclave can-fixing composite material is used, a special mold is required to be used, and the common mold has the following problems:

1. after the common die is subjected to hot-press forming, the material is attached to the die too tightly, so that the demolding is inconvenient, and the material is damaged in the demolding process, and the demolding needs to be performed within a long time.

2. The thickness of the upper end and the lower end of a common die is far smaller than that of the side edges, materials at the upper end and the lower end melt fast and the middle part melts slowly in the hot-press forming process, so that the materials are not uniform enough in forming.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a carbon fiber composite material autoclave forming die, which solves the problems of inconvenient demoulding and uneven forming mentioned in the technical background.

The application provides a carbon fiber composite material autoclave forming die, which comprises a base 1; an inclined plate 2; a lower die 3; a first connecting hole 4; a first connecting rod 5; a second connecting hole 8; a second connecting rod 9; a side form 10; a mold cover 12; an upper die 13; a handle 15; a connecting shaft 16; a cover plate 17; a shift lever 18; a buckle 19; a cartridge 20; a through opening 21, wherein:

the left side and the right side of a base 1 are fixedly connected with inclined plates 2, two lower dies 3 are arranged above the base 1, one ends of the lower dies 3 facing the inclined plates 2 are arranged into inclined planes, the inclined planes have the same inclination angle with the inclined planes of the inclined plates 2 facing the ends of the lower dies 3, one ends of the two lower dies 3 opposite to each other are respectively provided with a connecting hole one 4, a connecting rod one 5 is arranged between the two lower dies 3, two ends of the connecting rod one 5 are respectively clamped with the connecting hole one 4, one ends of the lower dies 3 facing the inclined plates 2 are provided with a connecting hole two 8, the outer side of each inclined plate 2 is provided with a connecting rod two 9, one end of each connecting rod two 9 penetrates through the inclined plates 2 to extend into the connecting hole two 8 and is clamped with the connecting hole, the upper surfaces of the lower dies 3 are fixedly connected with side dies 10, a die cover 12 is arranged above the side dies 10, the lower end of the die cover 12 is fixedly connected with an upper die 13, a cover plate 17 is rotatably arranged at the upper end of one inclined plate 2 through a connecting shaft 16, the lower surface of the cover plate 17 is symmetrical and fixedly arranged with stop rods 18, a buckle 19 is arranged on the side surface of the cover plate 17, a clamping block 20 matched with the buckle 19 is fixedly connected to the outer side wall of the other inclined plate 2, and a through hole 21 is formed in the cover plate 17.

Specifically, handles 15 are symmetrically arranged at the upper end of the mold cover 12.

Specifically, the inner side of the inclined plate 2 is symmetrically and fixedly connected with slideways 6.

Specifically, one end of the lower die 3 facing the inclined plate 2 is provided with a chute 7 matched with the chute 6.

Specifically, the connecting hole II 8 and the connecting rod II 9 are used for fixing the lower die 3, so that the lower die 3 cannot move along with the connecting hole II when the upper die 13 is opened, and demolding is facilitated.

Specifically, the upper end of the side mold 10 is provided with a clamping groove 11.

Specifically, the lower surface of the lower die 3 is provided with a first air guiding groove 24, and the upper surface of the die cover 12 is provided with a second air guiding groove 25.

Specifically, a projection 14 matched with the slot 11 is arranged on the outer side of the upper die 13.

Specifically, one side of the upper surface of the cover plate 17 is provided with an air inducing groove 22 communicated with the through hole 21, and the other side of the lower surface of the cover plate 17 is provided with an air exchanging groove 23 communicated with the through hole 21.

Specifically, the side surfaces of the two sloping plates 2 are provided with pull handles 26.

Compared with the prior art, the invention provides a carbon fiber composite material autoclave forming die which has the following beneficial effects:

1. this carbon-fibre composite autoclave forming die is connected through connecting hole one and connecting rod one between setting up two lower moulds for two lower moulds are convenient for part, through setting up the handle on the die cover, make the die cover be convenient for mention, make and go up the mould and the lower mould is convenient for part, through the setting of swash plate, make to be equipped with the cavity between the lower extreme of lower mould and the base, make the lower mould be convenient for take out from the base, reduced the degree of difficulty of drawing of patterns.

2. This carbon-fibre composite autoclave forming die, handle and the shelves pole that the apron lower surface set up through covering the setting on the mould, be convenient for make the mould lid receive the pressure of apron for among the material hot briquetting process, remain stable throughout, through the setting of drawing wind groove and trade the wind groove on the apron, be convenient for draw the mould lid with the hot-blast of autoclave air outlet, through the setting of wind guide groove one and wind guide groove two, make mould inside material be heated comparatively evenly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the lower mold structure of the present invention;

FIG. 3 is a schematic view of the upper mold structure of the present invention;

FIG. 4 is a schematic side view of the present invention.

In the figure: 1-a base; 2-a sloping plate; 3, lower die; 4, connecting the first hole; 5, connecting rod one; 6-a slideway; 7-a chute; 8-connecting hole II; 9-link two; 10-side die; 11-a card slot; 12-a mould cover; 13-upper mould; 14-a bump; 15-a handle; 16-a connecting shaft; 17-a cover plate; 18-gear lever; 19-buckling; 20-fixture block; 21-a through hole; 22-a wind guide groove; 23-ventilating slots; 24-a first air guide groove; 25-a second air guide groove; 26-pulling the handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a carbon fiber composite material autoclave forming die comprises a base 1, inclined plates 2 are fixedly connected to the left side and the right side of the base 1, two lower dies 3 are arranged above the inclined plates, connecting holes one 4 are formed in the opposite ends of the two lower dies 3, a connecting rod one 5 is arranged between the two lower dies 3, the two ends of the connecting rod one 5 are clamped with the connecting holes one 4, side dies 10 are fixedly connected to the upper surfaces of the lower dies 3, die covers 12 are arranged above the side dies 10, upper dies 13 are fixedly connected to the lower ends of the die covers 12, handles 15 are symmetrically arranged at the upper ends of the die covers 12, a cover plate 17 is rotatably arranged at the upper end of one inclined plate 2 through a connecting shaft 16, stop rods 18 are symmetrically and fixedly arranged on the lower surface of the cover plate 17, buckles 19 are arranged on the side surfaces of the cover plate 17, clamping blocks 20 matched with the buckles 19 are fixedly connected to the outer side wall of the other inclined plate 2, through holes 21 are formed in the cover plate 17, an induced draft groove 22 communicated with the through hole 21 is formed in one side of the upper surface of the cover plate 17, an air exchange groove 23 communicated with the through hole 21 is formed in the other side of the lower surface of the cover plate 17, and pull handles 26 are arranged on the side surfaces of the two inclined plates 2.

In this embodiment, connect through connecting hole 4 and connecting rod 5 between two lower moulds 3 through setting up, make two lower moulds 3 be convenient for part, through setting up handle 15 on the mould lid 12, make the mould lid 12 be convenient for mention, make and go up mould 13 and lower mould 3 and be convenient for part, setting through swash plate 2, make to be equipped with the cavity between the lower extreme of lower mould 3 and the base 1, make lower mould 3 be convenient for take out from the base 1, the degree of difficulty of drawing of patterns has been reduced, handle 15 and the shelves pole 18 that apron 17 lower surface set up through setting up on the mould lid 12, be convenient for make the mould lid 12 receive the pressure of apron 17, make in the material hot briquetting process, remain stable throughout.

Specifically, one end of the lower mold 3 facing the inclined plate 2 is set to be an inclined surface, and the inclined angle of the inclined surface is the same as that of the inclined plate 2 facing the end of the lower mold 3.

In this embodiment, through setting up the inclined plane that inclination is the same, make lower mould 3 slide to the horizontal distance between two swash plates 2 and its lateral wall and the laminating of the lateral wall of swash plate 2 when the total length of two lower mould 3 lower extremes is the same.

Specifically, the inboard symmetry and the fixedly connected with slide 6 of swash plate 2, lower mould 3 one end towards swash plate 2 is provided with slide 6 assorted spout 7.

In this embodiment, the slide way 6 and the slide groove 7 are arranged, so that the lower die 3 does not incline in the sliding process.

Specifically, connecting hole two 8 has been seted up towards the one end of swash plate 2 to lower mould 3, and the outside of swash plate 2 is provided with connecting rod two 9, and the one end of connecting rod two 9 runs through swash plate 2 and extends to in connecting hole two 8 and rather than the joint.

In this embodiment, the connecting hole two 8 and the connecting rod two 9 are used for fixing the lower die 3, so that the lower die 3 cannot move along with the connecting hole two 8 when the upper die 13 is opened, and demolding is facilitated.

Specifically, the upper end of the side mold 10 is provided with a clamping groove 11, and the outer side of the upper mold 13 is provided with a convex block 14 matched with the clamping groove 11.

In this embodiment, the positions between the upper mold 13 and the lower mold 3 are not deviated by the arrangement of the clamping grooves 11 and the protrusions 14, so as to reduce errors in material molding.

In this embodiment, the lower mold 3 and the upper mold 13 are heated more uniformly by the arrangement of the first air guide groove 24 and the second air guide groove 25.

The working principle and the using process of the invention are as follows: laying a material to be molded through the autoclave into a mold, placing the lower mold 3 on the base 1, fixing the lower mold 3 through the second connecting rod 9, the upper die 13 is pressurized through the cover plate 17, the movement and deflection of the lower die 3 and the upper die 13 are avoided, the whole die is placed in a hot-pressing tank for molding after pretreatment, the two lower dies 3 are connected through the connecting hole I4 and the connecting rod I5, so that the two lower dies 3 are convenient to separate, the lifting handle 15 on the mould cover 12 is arranged, so that the mould cover 12 is convenient to lift, the upper mould 13 and the lower mould 3 are convenient to separate, through the arrangement of the inclined plate 2, a cavity is arranged between the lower end of the lower die 3 and the base 1, so that the lower die 3 is convenient to be drawn out of the base 1, through the arrangement of the connecting hole II 8 and the connecting rod II 9, the fixing device is used for fixing the lower die 3, so that the lower die 3 cannot move along with the upper die 13 when the upper die is opened, and the difficulty of demoulding is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The carbon fiber composite material autoclave forming die is characterized by comprising a base (1); a sloping plate (2); a lower die (3); a first connecting hole (4); a first connecting rod (5); a second connecting hole (8); a second connecting rod (9); a side form (10); a mold cover (12); an upper die (13); a handle (15); a connecting shaft (16); a cover plate (17); a shift lever (18); a buckle (19); a cartridge (20); a through opening (21), wherein:

the left side and the right side of a base (1) are fixedly connected with inclined plates (2), two lower dies (3) are arranged above the base (1), one end of each lower die (3) facing the inclined plates (2) is set to be an inclined plane, the inclined plane is the same as the inclined plane inclined angle of the inclined plate (2) facing one end of the lower die (3), one end, opposite to the two lower dies (3), of each lower die is provided with a connecting hole I (4), a connecting rod I (5) is arranged between the two lower dies (3), two ends of the connecting rod I (5) are clamped with the connecting holes I (4), one end, facing the inclined plates (2), of each lower die (3) is provided with a connecting hole II (8), the outer side of each inclined plate (2) is provided with a connecting rod II (9), one end of each connecting rod II (9) penetrates through the inclined plates (2) to extend into the connecting holes II (8) and is clamped with the connecting holes II, the side dies (10) are fixedly connected with the upper surfaces of the lower dies (3), and a die cover (12) is arranged above the side dies (10), the lower end of the mold cover (12) is fixedly connected with an upper mold (13), the upper end of one inclined plate (2) is rotatably provided with a cover plate (17) through a connecting shaft (16), the lower surface of the cover plate (17) is symmetrically and fixedly provided with a stop lever (18), a buckle (19) is arranged on the side surface of the cover plate (17), a clamping block (20) matched with the buckle (19) is fixedly connected onto the outer side wall of the other inclined plate (2), and a through hole (21) is formed in the cover plate (17).

2. The carbon fiber composite autoclave molding die as claimed in claim 1, wherein the upper end of the die cover (12) is symmetrically provided with handles (15).

3. The carbon fiber composite autoclave molding die according to claim 1, characterized in that the inner side of the sloping plate (2) is symmetrically and fixedly connected with the slide ways (6).

4. The carbon fiber composite autoclave molding die according to claim 3, characterized in that one end of the lower die (3) facing the inclined plate (2) is provided with a chute (7) matched with the slide way (6).

5. The carbon fiber composite autoclave molding die according to claim 1, characterized in that the connecting holes (8) and the connecting rods (9) are used for fixing the lower die (3), so that the lower die (3) cannot move along with the connecting holes when the upper die (13) is opened, and demolding is facilitated.

6. The carbon fiber composite autoclave molding die as claimed in claim 1, wherein the upper end of the side die (10) is provided with a clamping groove (11).

7. The carbon fiber composite autoclave molding die as claimed in claim 1, wherein the lower surface of the lower die (3) is provided with a first air guide groove (24), and the upper surface of the die cover (12) is provided with a second air guide groove (25).

8. The carbon fiber composite autoclave molding die according to claim 1, characterized in that a projection (14) matching with the slot (11) is provided on the outer side of the upper die (13).

9. The carbon fiber composite autoclave molding die according to claim 1, characterized in that one side of the upper surface of the cover plate (17) is provided with an air guide groove (22) communicated with the through hole (21), and the other side of the lower surface of the cover plate (17) is provided with an air exchange groove (23) communicated with the through hole (21).

10. The carbon fiber composite autoclave molding die according to claim 1, characterized in that the side surfaces of the two sloping plates (2) are provided with pull handles (26).