JPS6142839Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of the base plate structure in a vacuum pasting device.

Generally, for decorative items such as automobile interior parts, furniture, and electrical parts, the surface of the core material such as hardboard is coated with a decorative skin material, either through a pad material or directly without a pad material. It is configured. In addition, at that time, the skin material is trimmed to be larger than the core material, and the edges are folded back and pasted to the back of the core material, but in this case, the pasting work is done manually. This is extremely troublesome and results in uneven finish.
A vacuum adhering device was developed earlier and is now in practical use, in which the folded portion of the skin material is adhered to the back surface of the core material while being stretched by vacuum suction.

This vacuum pasting device has a pedestal 1 as shown in Fig. 1.
and table 2 installed on top of this pedestal 1
, a frame-shaped lid 3 provided on the top surface of this table 2, and an elastic membrane 4 stretched over the inner surface of this lid 3.
The lid 3 is attached to the top surface of the table 2 so that it can be opened and closed by an air cylinder 5 provided on the side of the pedestal 1. Further, on the top surface of the table 2, there is installed a base plate 6 which is smaller in size than the outer shape of the core material of the ornament to be obtained, and which has a similar shape, and in the center of this base plate 6, the above-mentioned A central air intake port 7 that communicates with a vacuum suction device (not shown) provided inside the pedestal 1 is formed as an opening, and a radial passage 8 that communicates with the air intake port 7 is carved on the surface of the pedestal 6. has been done.

Therefore, the base plate 6 of the device configured as described above
As shown in FIG. 2(a), a core material 10 having a larger external shape, a pad material 11, and a skin material 12 are laminated on top, and a peripheral folded portion 12 of the skin material 12 is laminated thereon.
a and/or the back surface of the core material 10 in advance, and then drive the air cylinder 5 to close the lid 3 and operate the vacuum suction device, as shown in FIG.
As shown in (b), the elastic membrane 4 is suctioned and adhered to the surface of the skin material 12, and the elastic membrane 4 located at the periphery of the skin material 12 is wound around the back side of the core material, thereby spreading the skin material 12 evenly. It is adapted to be attached to the core material 10 with a certain tension.

Such a pasting device is particularly effective for core material 10 having a flat plate shape.

However, when the peripheral edge of the core material 10 is bent toward the back side as shown in FIG.
When the above-mentioned device is applied when pasting the elastic membrane 4 to the bent portion 10 as shown in
Since the tape could no longer be wrapped around the back side of a and the pasting work was extremely difficult, it had to be rolled and pasted manually.

This idea was made based on the background described above, and by devising the shape of the base plate, it is possible to achieve good adhesion using the above-mentioned device even when the core material has a bent peripheral edge. The purpose is to make it possible to carry out dressing work.

In other words, in this invention, the peripheral edge of the conventional base plate is formed in a shape that stands steeply in the thickness direction, and for this reason, a sufficient volume is not secured between the elastic membrane and the peripheral edge of the core material, and the elastic membrane This was done by focusing on the fact that the entrainment effect of the
The above problem is solved by overhanging the upper surface of the outer peripheral edge of the base plate.

An embodiment of this invention will be described in detail below with reference to FIG. 4 and the following drawings. Note that portions other than the main parts of this invention that are common to the conventional device will be described with the same reference numerals.

In Fig. 4, numeral 20 indicates a base plate according to this invention, which, like Fig. 1, is smaller than the core material to be processed and is formed in a similar shape. At the same time, a central air intake port 21 communicating with a vacuum suction device and a surface radial passage 22 communicating with the air intake are carved.

An overhang part 23 is formed on the upper surface of the outer peripheral edge of this base plate 20, and the overhang part 23 extends larger than the lower part thereof. 5
As shown in the figure, the bent portion 10a protrudes below the overhang portion 23, and a gap d is formed between the bent portion 10a and the lower portion of the overhang portion 23.

Next, the pad material 11 and the skin material 12 are attached to the core material 10.
At the stage where the layers are stacked on top, the air cylinder 5 is driven to close the lid 3 and the vacuum suction device is operated. As shown in FIG. Closely attached by suction,
The gap d becomes a closed space by the membrane 4, and by further reducing the pressure in this space, the membrane 4 comes into close contact along the lower part of the overhang part 23,
Eventually, as shown in FIG.
Using even suction force, roll the periphery of the
Both are bonded via an adhesive applied to the back surface of the skin material 12 and/or the back surface of the bent portion.

Note that the overhang shape of the outer peripheral edge of the base plate 20 is set depending on the thickness of the skin material 12. For example, when the skin material 12 is thick, the overhang portion 23 as shown in FIGS. 4 to 7 above is set. However, if the thickness is thin, the overhang part 23' is formed as shown in FIG.
The shape of is formed in a curved state protruding from the lower part of the base plate 20, and in any case, when the core material having the seed bent part 10a is attached using a vacuum attaching device. It has been confirmed that by overhanging the top surface of the periphery of the base plate, the adhesion is much better than when using a conventional vertical base plate, and that it can be carried out satisfactorily even with weak vacuum suction force.

Furthermore, this invention can of course be applied to a flat core material.

As explained above, in the case of the base plate structure in the vacuum pasting device according to the invention, by overhanging the upper surface of the outer periphery as described above,
Even if the peripheral edge of the core material is bent toward the back side, it has the advantage that the skin material can be attached via the skin material or pad material, and the edge can be rolled up and attached to the back side.

Furthermore, this invention has the advantage that by devising the base plate as described above, it can be implemented without changing any of the main parts of the device, so it can be implemented at extremely low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of the vacuum pasting device used in this invention, and FIGS. 2 a and b are partially enlarged cross-sectional views showing the vacuum pasting process using a conventional base plate.
Fig. 3 is a partially enlarged sectional view showing the process of adhering a core material having a bent portion at the edge and a skin material using the same base plate, and Figures 4 to 7 show the base plate and the skin material according to this invention. FIG. 8 is a partially enlarged cross-sectional view showing the vacuum adhesion process using this, and FIG. 8 is a cross-sectional view showing another embodiment of the base plate according to this invention. 2...Table, 3...Lid, 4...Elastic membrane,
DESCRIPTION OF SYMBOLS 10... Core material, 11... Pad material, 12... Skin material, 20... Base board, 21... Center intake port, 22...
...Radial passage, 23, 23'...overhang part.

Claims (1)

[Scope of utility model registration request] The peripheral folded part of the skin material that covers the surface of the core material,
The core material and the skin material are smaller in size than the core material on which the core material and the skin material are placed, in order to be bonded via an adhesive applied to both or either one of the back surface of the core material and the folded part of the skin material. A base plate similar in shape to this is provided on the table, and the base plate is provided with a central air intake port connected to the air intake source and a surface radial passageway connected to the air intake port,
A base board for a vacuum pasting device, wherein the table is provided with a cover that can be opened and closed with an elastic membrane stretched on the inner surface, and the base board of the vacuum pasting device is characterized in that the upper surface of the outer peripheral edge of the base board is overhanked. structure.