CN214214730U

CN214214730U - Preparation device of honeycomb core material

Info

Publication number: CN214214730U
Application number: CN202120011635.7U
Authority: CN
Inventors: 黄珊; 展旭和; 苏仰旋; 刘辉; 王坤; 张广鸣; 刘小波; 张春伟; 张安申
Original assignee: CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd; Qingdao SRI Technology Co Ltd
Current assignee: CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd; CRRC Brake System Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-09-17
Anticipated expiration: 2031-01-04

Abstract

The utility model discloses a preparation device of a honeycomb core material, which comprises a first die piece; a second mold member disposed opposite the first mold member; a clamping assembly, the clamping assembly comprising: the fixing piece comprises a first fixing part and a second fixing part, the first fixing part is symmetrically arranged at two ends of the first mould piece, the second fixing part is symmetrically arranged at two ends of the second mould piece, and the first fixing part and the second fixing part are arranged correspondingly; and the clamping piece is used for connecting the first fixing part and the second fixing part, so that the first die piece and the second die piece are tightly connected. The technical problem that the large honeycomb core material cannot be produced due to the fact that the size of the honeycomb core material is limited by hot pressing equipment is solved.

Description

Preparation device of honeycomb core material

Technical Field

The utility model belongs to the technical field of the preparation of honeycomb core, especially, relate to a preparation facilities of honeycomb core.

Background

To improve the impact resistance of a train, the train is usually equipped with an energy absorption device. The honeycomb core material has high specific strength and specific rigidity and good impact resistance, and is applied to train energy absorption devices.

In the prior art, most of the honeycomb core materials are manufactured by firstly adopting prepreg through an autoclave or a molding press, and then bonding a plurality of honeycomb parts to obtain the honeycomb core material. However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:

in the prior art, a die needs to be preheated when the honeycomb sub-piece is manufactured, and hot pressing equipment such as an autoclave or a hot press needs to be adopted for molding, so that the size of the honeycomb core material is limited by the hot pressing equipment. When the honeycomb size is large, the conventional hot pressing apparatus may not meet the use requirement, thereby requiring a custom-made apparatus, resulting in a significant increase in production cost.

Disclosure of Invention

An object of the utility model is to provide a preparation facilities of honeycomb core to solve among the above-mentioned prior art honeycomb core size and receive the restriction of hot pressing equipment, and lead to preparing the technical problem that large-scale honeycomb core needs customization hot pressing equipment.

In order to realize the purpose, the utility model adopts the following technical scheme:

an apparatus for manufacturing a honeycomb core, comprising:

a first mold member;

a second mold member disposed opposite the first mold member;

a clamping assembly, the clamping assembly comprising:

the fixing piece comprises a first fixing part and a second fixing part, the first fixing part is symmetrically arranged at two ends of the first mould piece, the second fixing part is symmetrically arranged at two ends of the second mould piece, and the first fixing part and the second fixing part are arranged correspondingly;

and the clamping piece is used for connecting the first fixing part and the second fixing part, so that the first die piece and the second die piece are tightly connected.

Preferably, the first fixing part and the first mold part are preferably integrally formed; the second fixing portion and the second mold member are preferably integrally formed.

Preferably, the first fixing part is provided with a first connecting hole; the second fixing part is provided with a second connecting hole, and the first connecting hole and the second connecting hole are arranged oppositely;

the clamping piece is a fastening bolt and sequentially penetrates through the first connecting hole and the second connecting hole, so that the first fixing part and the second fixing part are fastened and connected.

Preferably, a first cushion block is arranged between the first fixing part and the second fixing part.

Preferably, the fixing member includes:

third fixing parts respectively arranged on two side edges of the first die piece;

the fourth fixing parts are respectively arranged on two side edges of the second die piece;

the clamping piece is arranged on the third fixing part and the fourth fixing part, and the third fixing part and the fourth fixing part are fixed together through the clamping piece.

Preferably, a second cushion block is arranged between the third fixing part and the fourth fixing part.

Preferably, the first mold part is provided with first grooves and first bulges in sequence and alternately;

the second mold part is sequentially and alternately provided with second grooves and second bulges;

the first groove and the second protrusion are oppositely arranged, and the first protrusion and the second groove are oppositely arranged.

Preferably, the structure of the first protrusion is matched with the structure of the second groove, so that the first protrusion can be inserted into the second groove; the outer surface of the first bulge is closely connected with the inner surface of the second groove;

the structure of the second bulge is matched with the structure of the first groove, so that the second bulge can be inserted into the first groove; and the outer surface of the second protrusion is closely connected with the inner surface of the first groove.

Preferably, the structure of the first groove is the same as that of the second groove, and the cross sections of the first groove and the second groove are both in a semi-regular hexagon structure.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a honeycomb core material preparation device, wherein, a first fixing part is respectively arranged at two ends of a first mould piece, a second fixing part is arranged at two ends of a second mould piece, and the first fixing part and the second fixing part are correspondingly arranged; meanwhile, a clamping piece is further arranged, and the first fixing part and the second fixing part are tightly connected through the clamping piece, so that the first die piece and the second die piece can be tightly connected. Therefore, under the action of the clamping piece and the fixing piece, certain pressure is generated between the first die piece and the second die piece, and the pressure acts on the honeycomb core material on the first die piece, so that the honeycomb core material sub-piece is stressed, the honeycomb core material sub-piece can be effectively molded, and large-scale equipment is not required to pressurize the honeycomb core material sub-piece, and the honeycomb core material sub-piece can be molded. Therefore, by adopting the structure, the technical problem that the size of the honeycomb core material is limited by hot-pressing equipment in the prior art, so that the large-size honeycomb core material is prepared by customizing the hot-pressing equipment is solved.

Drawings

Fig. 1 is a schematic structural diagram of a device for manufacturing a honeycomb core member provided in embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a first mold part of an apparatus for manufacturing a honeycomb core material sub-part provided in embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram 1 of a second mold part of the honeycomb core material sub-part manufacturing apparatus provided in embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram 2 of a second mold part of the honeycomb core material sub-part manufacturing apparatus provided in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a honeycomb core member manufacturing apparatus provided in embodiment 2 of the present invention;

fig. 6 is a schematic view of the overall structure of the device for preparing the honeycomb core material of the present invention;

in the above figures: 1. a first mold member; 11. a first groove; 12. a first protrusion; 2. a second mold piece; 21. a second groove; 22. a second protrusion; 3. a first fixed part; 31. a first connection hole; 4. a second fixed part; 41. a second connection hole; 5. a third fixed part; 6. a fourth fixing part; 7. a first clamping member; 8. a second clamping member; 9. a first cushion block; 10. and a second cushion block.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The terms "first", "second", "third", "fourth", are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that, for the convenience of describing the technical solution, the "length direction" in the present invention refers to fig. 1

The first mould part and the second mould part are arranged from left to right; the "width direction" refers to the front-to-back direction of the first and second mold members of fig. 1.

In order to solve the technical problem that the size of a honeycomb core material is limited by hot-pressing equipment in the prior art, and the large-scale honeycomb core material is required to be manufactured by customizing the hot-pressing equipment, the technical scheme in the embodiment of the application has the following general idea:

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

An apparatus for manufacturing a honeycomb core, comprising:

a first mold part 1;

a second mould part 2;

a clamping assembly, the clamping assembly comprising:

the fixing piece comprises a first fixing part 3 and a second fixing part 4, the first fixing part 3 is symmetrically arranged at two ends of the first mould piece 1, the second fixing part 4 is symmetrically arranged at two ends of the second mould piece 2, and the first fixing part 3 and the second fixing part 4 are correspondingly arranged; -

A clamping element connecting the first fixing part 3 with the second fixing part 4, such that the first mould part 1 is in tight contact with the second mould part 2.

The first mold member 1 is used for molding a honeycomb core material. Specifically, as shown in fig. 1, the first mold member 1 is preferably a plate-shaped structure, the upper end surface of which is provided with a plurality of first grooves 11 and first protrusions 12, and the first grooves 11 and the first protrusions 12 are alternately arranged in sequence along the length direction of the first mold member 1. More specifically, the cross section of the first groove 11 is a half regular polygon structure, and in the present embodiment, a half regular hexagon structure is preferable. The first protrusion 12 is disposed between two adjacent first grooves 11, a cross section of the first protrusion 12 is also a half-regular hexagon structure, and a side length of a cross section of the first protrusion 12 is equal to a side length of a cross section of each first groove 11.

The second mold member 2 is used for molding the honeycomb core material. Specifically, as shown in fig. 1, the second mold member 2 is preferably a plate-shaped structure, and the upper end surface thereof is provided with a plurality of second grooves 21 and second protrusions 22, and the second grooves 21 and the second protrusions 22 are alternately arranged in sequence along the length direction of the second mold member 2. More specifically, the cross section of the second groove 21 is a half regular polygon structure, and a half regular hexagon structure is preferred in the present embodiment. The second protrusion 22 is disposed between two adjacent second grooves 21, a cross section of the second protrusion 22 is also a half-regular hexagon structure, and a side length of a cross section of the second protrusion 22 is equal to a side length of a cross section of the second groove 21.

The clamping assembly is used to clamp the first and second mold members together. Specifically, the clamping assembly includes a stationary member and a clamping member.

The fixing piece comprises a first fixing part and a second fixing part,

the first fixing portion 3 and the first mold member 1 may be connected by a separate connection structure, such as a bolt. Preferably, in order to further improve the connection strength between the first fixing portion 3 and the first mold 1 and facilitate the processing and adjustment, the first fixing portion 3 and the first mold 1 are integrally formed, for example, by casting or machining. Specifically, the first fixing portion 3 extends from one end of the first mold member 1 to the other end thereof along the width direction of the first mold member 1; and the first fixing portion 3 is preferably a plate-like structure.

The second fixing part 4 and the first fixing part 3 have the same structure and are arranged correspondingly. Specifically, the second fixing portion 4 and the second mold member 2 may be connected by a separate connection structure, such as a bolt. Preferably, in order to further improve the connection strength between the second fixing portion 4 and the second mold 2 and facilitate the processing and adjustment, the second fixing portion 4 and the second mold 2 are integrally formed, for example, by casting or machining. Specifically, the second fixed portion 4 extends from one end of the second mold member 2 to the other end thereof in the width direction of the second mold member 2; and the second fixing portion 4 is preferably a plate-like structure.

The clamping member is used to connect the first fixing portion 3 and the second fixing portion 4. Specifically, the clamping member may be a fastening bolt, a G-clamp, a C-clamp, or the like, and in this embodiment, the clamping member is preferably a fastening bolt, and the magnitude of the clamping force may be adjusted by controlling the fastening torque of the fastening bolt. Meanwhile, the first fixing portion 3 is provided with a first connection hole 31, and the second fixing portion 4 is provided with a second connection hole 41; and the first connection hole 31 is disposed opposite to the second connection hole 41. The clamping member passes through the first connection hole 31 and the second connection hole 41 in order, so that the first fixing portion 3 is securely connected with the second fixing portion 4. Structure more than adopting, can realize the regulation of effort size between first fixed part 3 and the second fixed part 4 through adjusting the clamping piece, can adjust the pressure between first mould spare 1 and the second mould spare 2 promptly, realize exerting the adjustment of pressure to the honeycomb core on first mould spare 1 from this, simultaneously, this application adopts unsaturated polyester resin, can realize the normal atmospheric temperature solidification. Thereby replacing the hot press apparatus of the prior art. The preparation of the honeycomb core material sub-piece can be realized without using hot pressing equipment, so that the technical problem that the size of the honeycomb core material sub-piece is limited by the hot pressing equipment in the prior art, so that the large honeycomb core material is prepared by customizing the hot pressing equipment is solved, and the production cost is obviously increased.

Referring to fig. 4, in order to secure the clamping effect, the clamping member includes a first clamping member 7 and a second clamping member 8 having the same structure. Two first clamping pieces 7 are arranged on the first fixing part 3 and the second fixing part 4, and the first clamping pieces 7 enable the first die plate and the second die plate to be clamped and fixed. Through setting up first clamping piece 7 for can produce sufficient pressure between first mould board and the second mould board, thereby the honeycomb core that the outward appearance is level and excellent in mechanical properties. At the same time, the force of the honeycomb core material sub-piece between the first mold piece 1 and the second mold piece 2 is more uniform.

Furthermore, in order to prevent the deformation of the honeycomb core material caused by the excessive clamping force applied by the clamping piece, in the embodiment, a first cushion block 9 is arranged between the first fixing part 3 and the second fixing part 4, one end of the first cushion block 9 is fixedly connected with the first fixing part 3, and the other end of the first cushion block 9 is fixedly connected with the second fixing part 4; more specifically, both ends of the first pad 9 are connected to the first fixing portion 3 and the second fixing portion 4 through the first clamping member 7; in this embodiment, the first block 9 is preferably a rectangular parallelepiped structure, and the height thereof can be changed according to actual needs. Through setting up above cushion, the clamp force that the control clamping piece that can be more reasonable provided for pressure between first mould spare 1 and the second mould spare 2 can be adjusted.

Example 2

In order to make the force applied to the honeycomb core material more uniform, in this embodiment, on the basis of embodiment 1, the fixing member is further improved, so that the force applied to the honeycomb core material in the preparation process is more uniform.

The fixing piece also comprises a third fixing part and a fourth fixing part,

the third fixing parts 5 are respectively arranged on two side edges of the first die member 1; the third fixing portion 5 and the first mold member 1 may be connected by a separate connection structure, such as a bolt. Preferably, in order to further improve the connection strength between the third fixing portion 5 and the first mold member 1 and facilitate the processing and adjustment, the third fixing portion 5 and the first mold member 1 are integrally formed, for example, by casting or machining; meanwhile, the third fixing portions 5 are disposed in the middle of both sides of the first mold member 1, thereby enabling pressure distribution to be more uniform. Specifically, the third fixing portion 5 may be disposed in the middle of the first mold member 1 and extend along the width of the first mold member 1 toward a direction away from the first mold member 1, and the third fixing portion 5 is preferably a plate-shaped structure.

The fourth fixing parts 6 are respectively arranged on two side edges of the second die piece 2; the fourth fixing part 6 and the third fixing part 5 have the same structure and are correspondingly arranged. Specifically, the fourth fixing portion 6 and the second mold member 2 may be connected by a separate connection structure, such as a bolt. Preferably, in order to further improve the connection strength between the fourth fixing portion 6 and the second mold 2 and facilitate the processing and adjustment, the fourth fixing portion 6 and the second mold 2 are integrally formed, for example, by casting or machining; meanwhile, the fourth fixing portions 6 are disposed in the middle of both sides of the first mold member 1, so that the pressure distribution can be more uniform. Specifically, the fourth fixing portion 6 may be disposed in the middle of the second mold member 2 and extend along the width of the second mold member 2 toward a direction away from the second mold member 2, and the fourth fixing portion 6 is preferably a plate-shaped structure.

In order to further ensure the clamping effect, the third fixing part 5 and the fourth fixing part 6 are provided with clamping elements, by means of which the third fixing part 5 and the fourth fixing part 6 are fixed together.

Specifically, the third fixing portion 5 and the fourth fixing portion 6 are each provided with a second clip 8, and the second clip 8 has the same structure as the first clip 7. In this embodiment, two second clamping members 8 are disposed on each of the third fixing portion 5 and the fourth fixing portion 6. Through setting up second clamping piece 8 for can further increase pressure between first mould board and the second mould board, thereby the honeycomb core that the outward appearance is level and smooth and mechanical properties is excellent. Meanwhile, the stress of the honeycomb core material between the first mold part 1 and the second mold part 2 is more uniform, and the appearance of the honeycomb core material is smoother.

Further, a second cushion block 10 is arranged between the third fixing part 5 and the fourth fixing part 6, one end of the second cushion block 10 is fixedly connected with the third fixing part 5, and the other end of the second cushion block 10 is fixedly connected with the fourth fixing part 6; both ends of the second cushion block 10 are connected with the third fixing part 5 and the fourth fixing part 6 through the second clamping piece 8. The second block 10 is preferably a rectangular parallelepiped structure, and the height thereof can be changed according to actual needs. Through setting up above cushion, the clamp force that the control clamping piece that can be more reasonable provided for pressure between first mould spare 1 and the second mould spare 2 can be adjusted.

In this embodiment, the range of the pressure is preferably 0.03MPa to 0.1MPa in order to improve the strength of the cured product without damaging the strength of the honeycomb core member, and the magnitude of the pressure can be controlled by controlling the torque of the clamping member. And the pressure can be estimated based on the tightening torque of the clamping member, the dimensions of the mold and the honeycomb core sub-member, etc.

For a clearer explanation of the present application, the working principle of the present invention is further explained below by taking the embodiment shown in fig. 1 to 5 as an example:

in the embodiment, the fabric layer is formed by adopting a hand lay-up forming process, namely, resin is manually coated on the first mould member 1, and then fiber fabric is uniformly laid on the first mould member 1 coated with the resin, wherein the fiber fabric can be one or a mixture of multiple fibers and fabrics such as carbon fiber, glass fiber and aramid fiber, and in the embodiment, the high-strength and low-density carbon fiber is preferred. And then the fabric layer is extruded by external force until the bubbles on the fabric layer are removed. The fabric layer can be extruded by the external force in the modes of fingers, rollers and the like until the bubbles of the fabric layer are completely removed. Then, the second fabric layer is coated and laid, and the above steps are repeated until the thickness of the total fabric layer on the first mold member 1 reaches the required thickness, that is, the honeycomb core material sub-member on the first mold member 1 is laid.

Then, the first cushion block 9 and the second cushion block 10 are respectively placed at the first fixing portion 3 and the third fixing portion 5, and the second mold member 2 is fastened to the first mold member 1, so that the second groove 21 is fastened to the first protrusion 12, and the second protrusion 22 is fastened to the first groove 11. Finally, the first fixing part 3 and the second fixing part 4 are fastened together by the first clamping piece 7, and the third fixing part 5 and the fourth fixing part 6 are fastened together by the second clamping piece 8, so that pressure is applied to the fabric layer, and the purpose of accelerating curing is achieved. Meanwhile, the first spacer 9 and the second spacer 10 are positioned between the first mold member 1 and the second mold member 2, thereby preventing the honeycomb core from being deformed due to an excessive clamping force of the clamping member. After the device is fixed, the device is cured at normal temperature. In this embodiment, the normal temperature curing means that the honeycomb core material is stored in the honeycomb core material device for at least 12 hours, the clamping member is removed after the honeycomb core material is completely cured, the mold can be removed, the preparation of the honeycomb core material sub-members is completed, and finally, the plurality of honeycomb core material sub-members are bonded together. As shown in fig. 5, in order to make the bonded honeycomb core more stable, the thickness of the spacer may be increased, so that the bonded honeycomb core component may be put into the device for further pressing and fixing, thereby making the mechanical properties of the obtained honeycomb core more stable.

In conclusion, by adopting the above device, namely, by the mutual cooperation between the first mold part 1, the second mold part 2 and the clamping component, the honeycomb core material can be effectively molded through normal temperature curing, namely, the honeycomb core material can be formed without hot pressing by using large-scale equipment. Therefore, by adopting the structure, the technical problem that the size of the honeycomb core material is limited by hot-pressing equipment in the prior art, so that the large-size honeycomb core material is prepared by customizing the hot-pressing equipment is solved.

Claims

1. A device for preparing a honeycomb core material is characterized by comprising:

a first mold member;

a second mold member disposed opposite the first mold member;

a clamping assembly, the clamping assembly comprising:

2. The apparatus for manufacturing a honeycomb core according to claim 1,

the first fixing part and the first die piece are of an integrally formed structure;

the second fixing part and the second die piece are of an integrally formed structure.

3. The apparatus for manufacturing a honeycomb core according to claim 1,

the first fixing part is provided with a first connecting hole;

the second fixing part is provided with a second connecting hole, and the first connecting hole and the second connecting hole are arranged oppositely;

4. The apparatus according to any one of claims 1 to 3, wherein a first spacer is provided between the first fixing portion and the second fixing portion.

5. The apparatus for manufacturing a honeycomb core according to claim 1, wherein the fixture comprises:

the fourth fixing parts are respectively arranged on two side edges of the second die piece and are arranged corresponding to the third fixing parts;

6. The apparatus of claim 5, wherein a second spacer is disposed between the third and fourth anchors.

7. The apparatus for manufacturing a honeycomb core according to claim 1,

the first die piece is sequentially and alternately provided with first grooves and first bulges;

the second die piece is sequentially and alternately provided with second grooves and second bulges;

8. The apparatus for manufacturing a honeycomb core according to claim 7,

the structure of the first protrusion is matched with the structure of the second groove, so that the first protrusion can be inserted into the second groove; the outer surface of the first bulge is closely connected with the inner surface of the second groove;

9. The apparatus of claim 7 or 8, wherein the first grooves have the same structure as the second grooves, and the cross sections of the first grooves and the second grooves are both in a semi-regular hexagonal structure.