Honeycomb sandwich plate edge sealing tool

Abstract

A tool for sealing the edge of a honeycomb sandwich plate comprises a cavity, a push rod and an edge sealing connector, edge sealing glue used for sealing the edge of the honeycomb sandwich plate is arranged in the cavity, the push rod is arranged at one end of the cavity, the edge sealing connector is installed at the other end of the cavity, and the edge sealing connector is of a triangular prism structure. A cylindrical port with a certain inclination is formed in the end of the triangular prism structure, and a spray hole is formed in the edge sealing connector. The honeycomb sandwich plate edge banding device is applied to processing and edge banding of floor panels of passenger cabins and cargo cabins with honeycomb sandwich structures of a certain large passenger plane at present, the efficiency of edge banding of the honeycomb sandwich plate is remarkably improved, and products after edge banding meet the requirements of the manufacturing process and the quality.

Description

Technical Field

[0001] This utility model relates to the field of composite material manufacturing technology, and in particular to a tool for sealing the edge of a honeycomb sandwich panel. Background Technology

[0002] Composite honeycomb sandwich panels are composed of upper and lower fiber-reinforced composite panels and a middle honeycomb core. Due to their advantages of light weight, high bending strength and stiffness, good corrosion resistance, long service life and cost savings, as well as vibration absorption function, they are widely used in the aerospace field and various spaceborne antennas. Among them, the application in the passenger cabin and cargo hold floors of various types of civil aircraft occupies a dominant position.

[0003] After processing, composite honeycomb sandwich panels require edge sealing to protect the quality of the internal honeycomb and panel edges. Currently, the edge sealing of composite honeycomb sandwich panels mainly involves applying edge sealing adhesive with a brush. However, products sealed by brushing have defects and cannot meet manufacturing process and quality requirements. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a tool for sealing the edge of a honeycomb sandwich panel, so as to solve the problems in the background art mentioned above.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A tool for sealing the edges of a honeycomb sandwich panel includes a cavity, a push rod, and an edge-sealing connector. The cavity contains edge-sealing adhesive for sealing the edges of the honeycomb sandwich panel. The push rod is located at one end of the cavity, and the edge-sealing connector is installed at the other end of the cavity. The edge-sealing connector has a triangular prism structure with a cylindrical port with a certain inclination at one end. The edge-sealing connector is provided with a spray hole for spraying edge-sealing adhesive to seal the square holes, surrounding L-shaped and U-shaped areas on the honeycomb sandwich panel.

[0007] In this invention, the end cap at the connection end of the cavity and the push rod has a through hole for the push rod to pass through.

[0008] In this invention, the push rod has a push plate at one end located inside the cavity for pushing the sealing adhesive inside the cavity. The outer edge of the push plate is in close contact with the inner wall of the cavity to prevent the sealing adhesive from leaking.

[0009] In this invention, the push rod is provided with an extension rod for extending the length of the push rod.

[0010] In this invention, the inclination angle of the cylindrical port at the end is 25°~45°.

[0011] Beneficial effects: This utility model has been applied to the processing and edge sealing of passenger cabin and cargo cabin floor panels with honeycomb sandwich structures in large passenger aircraft, which significantly improves the efficiency of honeycomb sandwich panel edge sealing and ensures that the edge-sealed products meet the manufacturing process and quality requirements. Attached Figure Description

[0012] Figure 1 This is a front view of a preferred embodiment of the present invention.

[0013] Figure 2 This is a bottom view of a preferred embodiment of the present invention.

[0014] Figure 3 This is a rear view of a preferred embodiment of the present invention.

[0015] Figure 4 This is an isometric view of a preferred embodiment of the present invention.

[0016] Figure 5 This is a schematic diagram of a honeycomb sandwich panel structure according to a preferred embodiment of the present invention.

[0017] Figure 6 This is a schematic diagram of the perimeter sealing of the honeycomb sandwich panel according to a preferred embodiment of the present invention. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0019] See Figures 1-4 A tool for sealing the edges of a honeycomb sandwich panel includes a cavity 1, a push rod 2, and an edge sealing connector 3. The cavity 1 is filled with edge sealing adhesive for sealing the edges of the honeycomb sandwich panel. The push rod 2 is provided at one end of the cavity 1, and the edge sealing connector 3 is installed at the other end of the cavity 1. The edge sealing connector 3 is a triangular prism structure with a cylindrical port with a certain inclination at one end. The edge sealing connector 3 is provided with a spray hole for spraying edge sealing adhesive to seal the square holes, surrounding L-shaped and U-shaped areas on the honeycomb sandwich panel.

[0020] In this embodiment, the end cap of the cavity 1 and the push rod 2 is provided with a through hole for the push rod 2 to pass through.

[0021] In this embodiment, the push rod 2 is provided with a push plate at one end located inside the cavity 1 for pushing the sealing adhesive inside the cavity. The outer edge of the push plate is in close contact with the inner wall of the cavity 1 to prevent the sealing adhesive from leaking.

[0022] In this embodiment, the push rod 2 is provided with an extension rod to extend the length of the push rod 2.

[0023] In this embodiment, the tilt angle of the cylindrical port at the end is 30°.

[0024] In this embodiment, as Figure 5 As shown, 4. Adhesive film, 5. Honeycomb core, 6. Panel. The thickness of the honeycomb sandwich panel is 12.35mm to 12.85mm. The design requires the perimeter sealing thickness h of the honeycomb sandwich panel to be 3mm to 5mm, and it should be arc-shaped. Figure 6 As shown, 4. Adhesive film, 5. Honeycomb core, 6. Panel, 7. Arc-shaped sealant. Based on this, it is calculated that the radius of the edge sealing joint 3 is set to 7mm, with a 30° tilt angle. This can meet the requirements of the edge sealing thickness and facilitate operation.

[0025] When using, first seal the spray hole on the sealing joint 3, then fill the cavity 1 with sealing adhesive and reserve the position for installing the push plate. After the sealing adhesive is filled, install the push rod 2 with the push plate and the end cap, then open the spray hole on the sealing joint 3 and seal the square holes, L-shaped and U-shaped areas on the honeycomb sandwich panel according to the requirements. After the square holes, L-shaped and U-shaped areas are sealed and gelled, place the honeycomb sandwich panel horizontally and seal its perimeter with the cylindrical end. Before gelling, remove any excess adhesive that has been applied or fallen into the areas that do not need sealing during the sealing process to ensure the quality, thickness and shape of the sealing.

[0026] Before and after each edge sealing process, the edge sealing tools must be kept clean and in good condition to ensure their lifespan and the quality of the sealant.

[0027] Finally, cure the adhesive according to its curing parameters. After curing, check the quality of the edge sealing. If any areas are found that do not meet the design requirements, repair them again with the same adhesive.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool for sealing the edge of a honeycomb sandwich panel, comprising a cavity, a push rod, and an edge sealing joint, characterized in that, The cavity contains edge-sealing adhesive for sealing the honeycomb sandwich panel. A push rod is provided at one end of the cavity, and an edge-sealing connector is installed at the other end of the cavity. The edge-sealing connector is a triangular prism structure with a cylindrical port with a certain inclination at the end of the triangular prism structure. Spray holes are provided on the edge-sealing connector.

2. The tool for sealing the edge of a honeycomb sandwich panel according to claim 1, characterized in that, A through hole is opened on the end cap at the connection end between the cavity and the push rod.

3. The tool for sealing the edge of a honeycomb sandwich panel according to claim 1, characterized in that, The push rod has a push plate at one end located inside the cavity for moving the sealing adhesive inside the cavity, and the outer edge of the push plate is in close contact with the inner wall of the cavity.

4. The tool for sealing the edge of a honeycomb sandwich panel according to claim 1, characterized in that, An extension rod is provided on the push rod.

5. The tool for sealing the edge of a honeycomb sandwich panel according to claim 1, characterized in that, The cylindrical port at the end has an inclination angle of 25° to 45°.

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