CN218366587U - A joint strip bonding structure for carbon fiber preimpregnation material girder - Google Patents

Abstract

The utility model discloses a sealing adhesive strip bonding structure for a carbon fiber prepreg girder, which comprises a carbon fiber prepreg girder, the outer side of the carbon fiber prepreg girder is wrapped with a bonding adhesive strip, and the bonding adhesive A wrapping airtight film is provided on the outside of the strip, and a plurality of connecting rubber blocks are adhered between the bonding strip and the wrapping airtight film. The utility model relates to a sealing adhesive strip bonding structure for carbon fiber prepreg girders, which enables the adhesive strips to be tightly wrapped around the carbon fiber prepreg girders, thereby improving the adhesion between the adhesive strips and the carbon fiber prepreg girders Airtightness, and at the same time improve the compression molding effect of carbon fiber prepreg girders, so that the vacuum bag film can reduce slippage when pressure is applied, and uniform pressure can be applied to the carbon fiber prepreg girders to compress and form carbon fiber prepreg girders to prevent the bonding of rubber strips and wrapping airtight films The high-pressure deformation is too large, and at the same time, the air pressure is evenly distributed, and the carbon fiber prepreg beam is evenly pressed.

Description

A sealant strip bonding structure for carbon fiber prepreg girders

technical field

The utility model relates to the field of carbon fiber reinforcement, in particular to a sealing strip bonding structure used for carbon fiber prepreg girders.

Background technique

When the carbon fiber prepreg girder is being processed, multi-layer carbon fiber cloth is laid into the girder and injected with resin for molding, while the carbon fiber prepreg girder is pressed and formed, mainly wrapped with a vacuum bag film, and then pressed and heated to cure the shape. Sealing strips are required between the vacuum bag film and the carbon fiber prepreg girder to prevent high temperature effects and resin overflow. It is an indispensable structure in the production of carbon fiber prepreg girders, and the When the sealant strip bonded structure is used, the sealant strip is mainly attached to the carbon fiber prepreg girder, and then the vacuum bag film is directly pressed, resulting in poor sealing effect of the sealant strip after wrapping, and the vacuum bag film When the pressure is applied, the smooth surface of the sealing strip will slip, and the carbon fiber prepreg girder cannot be pressed and formed evenly, which brings inconvenience to the processing of the carbon fiber prepreg girder.

Utility model content

The main purpose of the utility model is to provide a sealing strip bonding structure for carbon fiber prepreg girders, which can effectively solve the technical problems raised by the background technology.

In order to achieve the above object, the technical scheme that the utility model takes is:

A sealing tape bonding structure for a carbon fiber prepreg girder, comprising a carbon fiber prepreg girder, the outer side of the carbon fiber prepreg girder is wrapped with an adhesive strip, and the outer side of the adhesive strip is provided with Wrapping the airtight film, a plurality of connecting rubber blocks are adhered between the laminating adhesive strip and the wrapping airtight film, and a sealing joint is integrally formed on the outer side of the laminating adhesive strip and the enclosing airtight film, and the sealing joint The inside of the strip is integrally formed with a separating rubber strip, the outer side of the sealing strip is equipped with a plurality of gas injection joints, the outer side of the wrapped airtight film is wrapped with a housing cover, and the outer side of the outer housing cover is integrally formed with anti-skid lines.

As a further solution of the present utility model, the bonding adhesive strip and the wrapping airtight film are connected by a sealing strip, and there is a ring-shaped hollow structure between the fitting adhesive strip and the wrapping airtight film.

As a further solution of the present utility model, the connecting rubber block is designed in a spherical shape, and a plurality of connecting rubber blocks are arranged and installed in a circular arrangement around the center of the adhesive strip and the wrapping airtight film.

As a further solution of the present invention, the adhesive strip and the wrapping airtight film are both made of butyl rubber, and the hardness of the wrapping airtight film is greater than that of the adhesive strip.

As a further solution of the utility model, the sealing strip passes through the housing cover, the gas injection joint and the inside of the sealing strip are connected, and the lower end of the separating strip is integrally formed with the bonding strip.

As a further solution of the present invention, the adhesive tape is adhered to the outside of the carbon fiber prepreg girder, the outer shell is closely attached to the outer side of the airtight film, and the outer shell is located outside the carbon fiber prepreg girder.

Compared with the prior art, the utility model has the following beneficial effects: after the adhesive strips are sealed and wrapped, the adhesive A ring-shaped hollow structure is formed between the rubber strip and the wrapped airtight film, and air is injected from the air injection joint on the sealing strip to form a high pressure between the glued strip and the wrapped airtight film, so that the glued strip is tightly packed Carbon fiber prepreg girders improve the adhesion and sealing performance of the lamination strips and carbon fiber prepreg girders, and at the same time improve the compression molding effect of carbon fiber prepreg girders;

Through the externally wrapped outer shell, the outer shell is designed with a flexible structure. When the outer shell is attached to the vacuum bag film, it will contact it evenly through the strip-shaped anti-skid lines, so that when the vacuum bag film is pressurized, the slippage is reduced, and the uniform pressure is applied to the vacuum bag film. Carbon fiber prepreg girders are press-molded;

By setting the connecting rubber block between the bonding rubber strip and the wrapping airtight film, the connecting rubber block has the effect of strengthening the connection between the bonding rubber strip and the wrapping airtight film, and too much air is injected into the bonding rubber strip and the wrapping airtight When between the membranes, the connecting rubber block acts as an elastic fiber to prevent excessive high-pressure deformation of the laminating rubber strip and the wrapped airtight membrane, and at the same time evenly disperse the air pressure to evenly apply pressure to the carbon fiber prepreg girder.

Description of drawings

Fig. 1 is a kind of overall structure schematic diagram of the bonding structure of the sealant strip that is used for the carbon fiber prepreg girder of the present utility model;

Fig. 2 is a front view of the adhesive strip and the wrapped airtight film in a sealing strip bonding structure used for carbon fiber prepreg girders of the present invention;

Fig. 3 is an enlarged view of A in Fig. 2 of a sealing strip bonding structure for a carbon fiber prepreg girder of the present invention.

In the figure: 1. Carbon fiber prepreg girder; 2. Bonding rubber strip; 3. Wrapping airtight film; 4. Connecting rubber block; 5. Sealing strip; 6. Separating rubber strip; 7. Gas injection joint; 8 , Shell cover; 9, anti-slip pattern.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

As shown in Figures 1-3, a sealing strip bonding structure for carbon fiber prepreg girders includes carbon fiber prepreg girders 1, and the outside of carbon fiber prepreg girders 1 is wrapped with adhesive strips 2, The outer side of the bonding strip 2 is provided with a wrapping airtight film 3, and a plurality of connecting rubber blocks 4 are adhered between the bonding strip 2 and the wrapping airtight film 3, and the outside of the bonding strip 2 and the wrapping airtight film 3 A sealing strip 5 is integrally formed, and the interior of the sealing strip 5 is integrally formed with a separating rubber strip 6. A plurality of gas injection joints 7 are installed on the outside of the sealing strip 5, and an outer casing 8 is wrapped around the outside of the airtight film 3. Anti-slip lines 9 are integrally formed on the outer side of the housing cover 8 .

In this embodiment, the bonding strip 2 and the wrapping airtight film 3 are connected by the sealing strip 5, and the space between the fitting strip 2 and the wrapping airtight film 3 is a ring-shaped hollow structure, and the sealing strips 5 are attached to each other. The glue strip 2 is sealed and connected with the junction of the wrapped airtight film 3 .

In this embodiment, the connecting rubber block 4 is designed in a spherical shape, and a plurality of connecting rubber blocks 4 are arranged in a circular arrangement around the center of the bonding rubber strip 2 and the wrapping airtight film 3. The connecting rubber blocks 4 are paired with the bonding rubber strip 2 Reinforced with wrapping airtight film 3.

In this embodiment, the adhesive strip 2 and the wrapping airtight film 3 are both made of butyl rubber, the hardness of the wrapping airtight film 3 is greater than that of the attaching strip 2, and the material of the attaching strip 2 is softer. To achieve the function of sealing and bonding, the hardness of the wrapping airtight film 3 is relatively high, which plays the role of wrapping and limiting.

In this embodiment, the sealing strip 5 passes through the outer casing 8, the gas injection joint 7 penetrates the inside of the sealing strip 5, the lower end of the separating strip 6 is integrally formed with the bonding strip 2, and the gas injection joint 7 is used for Air is injected between the adhesive tape 2 and the wrapping airtight film 3 .

In this embodiment, the adhesive tape 2 is adhered to the outside of the carbon fiber prepreg girder 1 , the outer casing 8 is closely attached to the outer side of the airtight film 3 , and the outer casing 8 is located outside the carbon fiber prepreg girder 1 .

It should be noted that the utility model is a sealing strip bonding structure for carbon fiber prepreg girders. The carbon fiber prepreg girder 1 circle is evenly wrapped on the outside of the carbon fiber prepreg girder 1, and at the same time, the airtight film 3 is also wrapped on the outside of the carbon fiber prepreg girder 1 through the connection of the sealing strip 5, and the outer shell 8 Put it on the outer side of the wrapped airtight film 3, and then connect the outer side of the outer shell cover 8 with the processed vacuum bag film, and the adhesive strip 2 and the carbon fiber prepreg beam 1 are fixed by adhesion to play a role of sealing, and the outer shell cover 8 The vacuum bag film on the outer side applies pressure, and the carbon fiber prepreg girder 1 is sealed with the adhesive tape 2 .

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a joint strip bonding structure for carbon fiber prepreg girder which characterized in that: including carbon fiber prepreg girder (1), the outside parcel of carbon fiber prepreg girder (1) has laminating adhesive tape (2), the outside of laminating adhesive tape (2) is equipped with the airtight membrane of parcel (3), the adhesion has a plurality of connections to glue piece (4) between laminating adhesive tape (2) and the airtight membrane of parcel (3), the outside integrated into one piece of laminating adhesive tape (2) and the airtight membrane of parcel (3) has sealed joint strip (5), the inside integrated into one piece of sealed joint strip (5) has separation adhesive tape (6), a plurality of gas injections joint (7) are installed in the outside of sealed joint strip (5), the outside parcel of the airtight membrane of parcel (3) has outer cover (8), the outside integrated into one piece of outer cover (8) has anti-skidding line (9).

2. The joint strip bonding structure for the carbon fiber prepreg girder according to claim 1, wherein: the attaching adhesive tape (2) is connected with the wrapping airtight film (3) through a sealing connecting strip (5), and a circular ring-shaped hollow structure is arranged between the attaching adhesive tape (2) and the wrapping airtight film (3).

3. The joint strip bonding structure for the carbon fiber prepreg girder according to claim 1, wherein: connect gluey piece (4) and be spherical design, a plurality of connection gluey pieces (4) are the circular arrangement installation around the center of laminating adhesive tape (2) and parcel airtight membrane (3).

4. The joint strip bonding structure for the carbon fiber prepreg girder according to claim 1, wherein: the attaching rubber strip (2) and the wrapping airtight film (3) are made of butyl rubber, and the hardness of the wrapping airtight film (3) is greater than that of the attaching rubber strip (2).

5. The joint strip bonding structure for the carbon fiber prepreg girder according to claim 1, wherein: the sealing strip (5) penetrates through the outer shell cover (8), the gas injection joint (7) is communicated with the inside of the sealing strip (5), and the lower end of the separation rubber strip (6) and the bonding rubber strip (2) are integrally formed.

6. The joint strip bonding structure for the carbon fiber prepreg girder according to claim 1, wherein: the laminating adhesive tape (2) adhesion is in the outside of carbon fiber prepreg girder (1), and outer covering (8) closely laminates with the outside of wrapping up airtight membrane (3), and outer covering (8) are located the outside of carbon fiber prepreg girder (1).

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