JPS592834A - Method of molding sandwich honeycomb panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in the Sanderutschinonicumpanel molding process.

The conventional method for forming sandwich-Nicum panels is generally to apply an adhesive to both end faces of the cells or sheet materials formed into a predetermined shape, and then apply adhesive to the sheet material or the N-Nicum core formed into a predetermined shape. A molding method was used in which materials were piled up and then the adhesive was cured using hot pressing or the like.

Therefore, the manufacturing process is interrupted midway and is complicated, resulting in poor workability and high costs.

The present invention has been made in view of the above-mentioned circumstances, and is achieved by successively performing the steps of applying an adhesive to both end faces of cells of a honeycomb core, layering the sheet material, and curing the adhesive. The purpose of this paper is to propose a method for forming sandwich honeycomb panels with good work efficiency.

The present invention will be described below based on embodiments shown in the drawings.

Fig. 1 is an overall perspective view showing a sandwich honeycomb panel forming apparatus that specifically implements the method of the present invention;
FIG. 3 is a detailed perspective view of the sheet material stacking device, and FIG. 3 is a detailed perspective view of the cutter device in the area marked by a circle 2 surrounded by the imaginary line in FIG.

In the figure, 1 is a honeycomb core formed into an endless shape or a predetermined shape. 2 is a conveyor for conveying the honeycomb core 1, and the honeycomb core 1 placed on the conveyor 2 for conveying the honeycomb core is conveyed in the direction of arrow A, and an adhesive coating device 3, which forms the adhesive coating process, 3, the cell is further conveyed in the direction of arrow A while adhesive is applied to both end faces of the cell.

That is, each of the adhesive applicators 3, 3 includes an adhesive reservoir 4, a supply roll 5 whose lower end is immersed in the reservoir 4, and a supply roll 5 that supplies adhesive directly from the supply roll 5 or via an intermediate roll. The application rolls 6.6 are arranged at corresponding positions with a predetermined interval in the vertical direction, and the application rolls 6.6 are arranged at corresponding positions with a predetermined interval in the vertical direction. The rolls 6.6 are rotated by an appropriate drive source (not shown) and are configured to convey the honeycomb core 1 in the direction of arrow A. Therefore, the honeycomb core 1 is conveyed in the direction of arrow A while being coated with adhesive on both end faces of the cells by coating devices 3, 3. Next, the adhesive-applied sheet roll 1 is moved from the sheet roll 7.7 rotatably supported on the support stand 17 to the guide rolls 8, 8, . . .
The adhesive applicator 3 is guided by the adhesive applicator 3 at appropriate angles from above and below the honeycomb core 1.
A pair of nip rolls 9, 9 disposed at a predetermined distance in the direction of arrow A from .
It is conveyed between two long sheet materials 10 and 10, which have been fed to a position where the leading end faces the sheet. Then, by a pair of nip rolls 9° 9 forming an adhesion process, the sheet materials 10 and 10 are successively pressed against both end faces of the cells of the honeycomb core 1 from the tip side, thereby being overlapped. Next, this sheet material 1o
・Sandwich honeycomb panel IN with 1° layered!
, a curing device that performs a curing process to harden the adhesive】2
As a result, the material is hardened while being held and conveyed by a pair of conveyors '13113 between them. That is, this curing device 12 has an inlet and an outlet of the sandwich honeycomb panel 11 at opposite positions of a hermetically shielded curing furnace chamber 12a, and there is a gap between the inlet and the outlet in this curing furnace chamber 12a. , a pair of upper and lower conveyors 13.13 is provided.This pair of conveyors 13.13 is driven by a drive source (as shown in the figure).
(2) so that they move at the same speed from the population side to the exit side. Therefore, the sandwich honeycomb panel 11 is conveyed in the direction of arrow A while being held by the conveyor 13.13, and is carried out from the exit. In addition, while the sandwich honeycomb panel 11 is being conveyed in the curing furnace chamber 12a, the sandwich honeycomb panel 11 is also provided with an appropriate heat source provided in the curing furnace chamber 12a, for example, inside each of the pair of conveyors 13, 13 along the conveyor. The adhesive is cured by blowing out heated air from a heated plate (not shown) or a spout (not shown) disposed at an appropriate location.

After the fact, this sandwich honeycomb panel 11 is cut by a cutter 15 that cuts the sandwich honeycomb panel 11 along the width direction of the sheet material 100, and a sandwich honeycomb panel 1 that cuts the sandwich honeycomb panel 11 along the longitudinal direction of the sheet material 10.
The cutter device 14, which includes a trim slitter, band saw, etc. 16, cuts the end portion of the sheet into a predetermined size.

After passing through each of the above steps, sandwich-Nicum panel 11
is formed continuously.

As described above, the method of the present invention involves placing a honeycomb core formed into an endless shape or a predetermined shape on a conveyor, applying an adhesive to both end faces of the cells of the honeycomb core, and applying the adhesive to both end surfaces of the cells of the honeycomb core. Since the layering process and adhesive curing process can be performed continuously, the process of forming sandwich honeycomb panels is significantly simplified.
Moreover, it has great effects such as improved work efficiency, which makes it possible to provide a sandwich honeycomb panel at a low cost.

[Brief explanation of the drawing]

The drawings show a forming apparatus as an example of a concrete implementation of the sandwich honeycomb panel forming method according to the method of the present invention. FIG. 3 is a detailed perspective view of the cutter device shown in the circle (2) surrounded by the imaginary line in FIG. 1. FIG. DESCRIPTION OF SYMBOLS 1... Honeycomb core, 2... Conveyor for conveyance, 3.3... Adhesive coating device, 9.9... Nip roll, 10.10... Long sheet material, 11... Sandwich Honeycomb panel, 12... hardening device, 14... cutter device. Patent Applicant Showa Aircraft Industry Co., Ltd. Agent Tadashi Kamoshita

Claims (1)

[Claims] There is an adhesive application process in which adhesive is applied to both end faces of the cells of the honeycomb core that is fed in the horizontal direction, and then two length plates are separately sent from the top and bottom of the honeycomb core to both end faces of the cells of this honeycomb core. A sheet material piling process in which long sheet materials are pressure-adhered using nip rolls installed facing each other, and the adhesive is cured while conveying the sandwich honeycomb panel with sheet material superimposed on both end faces of the cells of this honeycomb core. 1. A method for forming a sandwich honeycomb panel, comprising: an adhesive curing step.