JPS5836443A - Method of molding interior finish material made of corrugated cardboard - Google Patents

Abstract

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

Description

[Detailed description of the invention] This article relates to a method of forming Seel's internal material.

The corrugated board base material does not necessarily have good moldability as it is, and has the disadvantage that the bent corner portions, deep drawing portions, and chisel turn formation portions cannot be formed into designed shapes.

The purpose of the present invention is to improve the formability of corrugated cardboard base material, to enable bending corner parts, deep drawing parts, and chisel turn forming parts to be accurately and easily molded into designed shapes, and to be able to form the folded corners, deep drawing parts, and chisel turn formation parts accurately and easily after taking out from the mold. The present invention provides a method for molding an interior material made of corrugated sel, which is ready for immediate use, and will become clear from the detailed description below with reference to the drawings.

1 to 6 show an embodiment of the present invention regarding a ceiling panel for an automobile, and FIG. 7 shows an example of the product.

As shown in FIG. 1, a portion of the corrugated cardboard base material 5 that is unnecessary for use as a ceiling panel of an automobile is cut off, a hole for installation is made, and a fold line is made.

The corrugated cardboard base material 5 has liners 7, 7 on both sides of the core 6.
In addition to pasting together, so-called single-sided corrugated cardboard or multilayer corrugated cardboard may also be used.

- In Fig. 1, 8 indicates a notch formed by cutting, 9 indicates a hole for mounting, and 10.11 indicates a folding line. Fold it where it corresponds to the part +? 110, a fold line 11 is made at a position corresponding to the deep drawing part.

The notch 8 and the mounting hole 9 and the fold line 10.11
The processing may be performed simultaneously or separately.

Further, as shown in FIG. 2, the folding lines 10 and 11 are processed by crushing with a V-shaped tip 1, and the tool 1 may be heated appropriately during this processing.

The notch 8, the mounting hole 9 and the fold line] 0
, '11 is placed on the lower mold 2 of the mold as shown in FIG. 3, and then the upper mold 3 of the mold is placed on the mold as shown in FIG. The corrugated gel base material 5 is pressed by the lower die 2 and the upper die 3 to form a predetermined shape. During this molding, the corrugated gel base material 5 includes:
Since the folding lines 10 and 11 are formed in advance, both the bent corner portion and the deep drawing portion can be precisely finished into the designed shape.

Before this press forming, the corrugated cardboard base material 5 may be placed in a heating and humidifying furnace to be heated, humidified and plasticized, or a heating and humidifying means may be built into the mold and plasticized during pressing. good. In the illustrated embodiment, several small needles 4 are planted on the molding surface of the lower mold 2, and the needles 4 prevent the spring 6 of the molded stage gel base material 5 from tightening, and also form ventilation holes. I have to.

After the press molding, as shown in FIG. 5, the upper mold 3 is raised, and then the skin material 12 with the holatome root 15 applied to the F of the lower mold 2 that accommodates the molded corrugated gel base material 51.
The hot melt 15 is placed so as to face the molded stepped dial base material 5'1.

In addition to the illustrated embodiment in which a thin skin sheet 13 and a relatively thick cushioning material 14 such as sponge are laminated as the skin material 12, a sheet slightly thicker than the top sheet 13 may be used alone.

Next, as shown in FIG. 6, the upper mold 3 is lowered, and the molded corrugated gel base material 5' and the skin material 12 having the hot melt 15 are pressed by the lower mold 2 and the upper mold 3. At the same time, the hot melt 15 is melted, and the molded corrugated gel base material 5' and the skin material 12' are bonded together via the melted hot melt 15', and after cooling, the molded product is taken out from the mold. In the step of bonding the molded corrugated gel 5' and the skin material 12', in the case where a heating means is incorporated in the mold, the heating means melts the real melt 15, and also before press-forming the corrugated cardboard base material 5. The cardboard base material 5 is heated in a step.

In the case of humidification, the hot melt 15 is melted and bonded by preheating the molded corrugated gel base material 5'.

By going through the steps described above, a product 16, which is a molded article as shown in FIG. 7, can be molded.

Then, the product 16 is precisely molded into the designed shape by the action of folding [10, I1], and the molded corrugated base material 5
′, the folding line 10.11 is formed into a beautiful appearance with the cover material 12′ glued together using hot melt 15′, and the cut-off line 8 is already hidden. Since it is provided with a hole 9 for mounting, it can be used immediately as an interior material.

12 In the present invention, if the corrugated sail base material 5 has an o-turn forming part in addition to the bent corner part and the deep drawing part depending on the application, a fold line is also provided at the position corresponding to the pattern forming part. shall be taken as a thing.

In addition, the present invention cuts out unnecessary parts of the corrugated gel base material as an interior material, and creates holes for installation.
The feature is that press forming is performed after forming fold lines at necessary locations, and the other steps are not limited to the above-mentioned embodiments. Furthermore, it can be applied not only to automobile ceiling panels but also to all interior materials whose main material is a corrugated sail board.

The above is the configuration of one embodiment of the method for forming a corrugated cardboard interior material according to the present invention. According to this configuration, fold lines are formed at least in the folded portion, deep drawing portion, and nosoturn forming portion of the corrugated board base material. After applying the material, it is press-molded and molded into a predetermined shape, so each part can be accurately molded into the designed shape, which has the effect of easily producing a beautiful corrugated zelle interior material as a whole. .

Furthermore, according to the present invention, unnecessary parts are already cut out before being placed in the mold, and holes for attachment are provided, so that the product can be used immediately after being removed from the mold. There is also.

It should be noted that the above description merely shows one embodiment of the present invention, and it will be obvious that various modifications and changes may be made without departing from the spirit of the present invention.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the present invention, and FIG. 1 shows a cutout in a corrugated gel base material. A perspective view showing the mounting holes and the process of making fold lines, and a second
The figure is an explanatory diagram of the state in which folding lines are being applied, Figure 3 is a diagram showing the state in which the corrugated gel base material is placed on the lower mold of the mold, and Figure 4 is an illustration of the press forming process of the corrugated gel base material. Figure 5 is a diagram showing the state in which the skin material with hot melt is placed on the lower mold, Figure 6 is a diagram showing the bonding process between the molded corrugated base material and the skin material, and Figure 7 is It is a figure showing an example of a product. In the figure, 1... a tool for making fold lines, 2... a lower die of a mold, 3... the same mold, 5... a corrugated gel base material, 5'...
- Molded corrugated gel base material, 8... Notch, 9... Hole for mounting, 10. ．． DESCRIPTION OF SYMBOLS 11... Folding line, 12... Skin material, 12'... Bonded skin material, 15... Hot melt, 15'... Melted hot melt. Patent Applicant Ikeda Bussan Co., Ltd. Agent Patent Attorney Osamu Akiyama 4 Figure 4 Figure 6

Claims (1)

[Claims] After cutting out unnecessary parts of the corrugated cardboard base material as interior material, drilling holes for installation, and making fold lines at least at the bending corners, the ξ turn forming part, and the deep drawing part, press. A method for forming a corrugated cardboard interior material, which is characterized by forming the interior material into a predetermined shape.