JPH062372B2 - Adhesion method for adhering base material and surface material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a bonding method for bonding a base material and a surface material.

(Prior Art) In a conventional bonding method for bonding a base material and a surface material,
An adhesive is provided between the base material and the surface material, and the first roller and the second roller pressurize the base material and the surface material, and
An alternating electric field is applied by the high-frequency applying electrodes for high-frequency heating provided so as to face the roller side and the second roller side to heat the adhesive to bond the base material and the surface material.

(Problems to be Solved by the Invention) In a conventional bonding method for bonding a base material and a surface material,
Since the electrodes for high-frequency application of high-frequency heating are provided facing each other, if the thickness of the base material changes (for example, 20 to 150 m
m), heating conditions are different.

Therefore, it was necessary to adjust the high frequency heating device each time, which was very troublesome.

In addition, the high frequency heats the base material, the adhesive, the surface material, and the portion that does not need to be heated, resulting in power loss.

Further, when the first roller is arranged on the upper side and the second roller is arranged on the lower side, the high frequency applying electrode is located on the side of the second roller arranged on the lower side. There is a problem in that the deposited high-frequency applying electrode on the side of the second roller is discharged and is dangerous.

In order to eliminate the above-mentioned problems, the present invention provides a substrate and a surface by arranging a high-frequency applying electrode for high-frequency heating on a roller side closer to the inner surface material of the first roller and the second roller. It is an object of the present invention to provide a bonding method for bonding a material.

It is another object of the present invention to provide a bonding method for bonding a base material and a surface material by arranging electrodes for high frequency application for high frequency heating in parallel with each other on the side of the upper roller.

(Means for Solving the Problem) In order to solve the above-mentioned object, in a bonding method for bonding a base material and a surface material of the present invention, a high-frequency applying electrode for high-frequency heating is provided with a first roller and a second roller. The rollers are arranged side by side on the side closer to the inner surface material of the roller.

Further, in the adhesive method for adhering the base material and the surface material of the present invention, the high frequency applying electrodes for high frequency heating are arranged side by side on the upper roller side.

(Operation) In the bonding method for bonding the base material and the surface material,
The high-frequency applying electrodes for high-frequency heating were arranged in parallel on the roller side closer to the inner surface material of the first roller and the second roller, and an alternating electric field was applied. The layers and the adhesive are heated.

Further, since the high-frequency applying electrodes for high-frequency heating are arranged side by side on the upper roller side and an alternating electric field is applied, the high-frequency applying electrodes heat the high frequency to the surface material, the adhesive layer and the adhesive.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a surface material bonding machine for carrying out a bonding method for bonding a base material and a surface material of the present invention.

The surface material bonding machine 1 roughly includes a gluing part 2 for applying the adhesive C to the base material A, a mounting part 3 for mounting the adsorbed surface material B on the base material A, a base material A and a surface material B. It is composed of a bonding portion 4 for bonding.

Although a high-frequency heating device is provided in the bonding portion 4, in the present embodiment, a high-frequency applying electrode 43 for high-frequency heating,
Only 44 is shown, and other high-frequency power supplies, matching boxes, control boards, etc. are not shown and omitted.

The gluing portion 2 is a portion for applying the adhesive C to the base material A, and includes a first upper roller 21 for gluing, a second upper roller 22 for gluing, and a first upper roller 21 for gluing.
It is composed of a lower roller 23.

The gluing first upper roller 21 and the gluing second upper roller 22
Put the adhesive C between and.

Examples of the adhesive C include emulsion type, reactive type,
Examples include cross-linking type adhesives.

When the hot-melt type adhesive is used as the adhesive, the adhesive A is not pre-coated as in the present embodiment, but the base A is precoated with the adhesive and guided to the mounting portion 3 and the adhesive 4. You may.

Then, when the base material A is guided between the first upper roller 21 for gluing, the second upper roller 22 for gluing, and the first lower roller 23, the adhesive C in the gluing portion 2 is only on one side of the base material A. It is applied.

A base material A whose one surface is coated with the adhesive C (the base material A is, for example, wood, plywood, laminated wood, synthetic resin, or the like) is guided to the mounting portion 3.

The mounting part 3 has a surface material B (a surface material B is, for example, a decorative veneer (projection plate)) on a base material A whose one surface is coated with an adhesive C.
It has a suction plate 31 for adsorbing the surface material B at the portion where the paper, synthetic resin, etc. are placed, and the surface material B is adsorbed by this adsorption plate 31 and one side is coated with the adhesive C. The surface material B is placed on the material A.

The base material A on which the surface material B is placed is guided to the bonding portion 4 by the conveyor 32.

The adhesive portion 4 includes a first roller, for example, an upper roller 42, and a second roller, for example, a lower roller 41. The base material A and the surface material B are subjected to high-frequency heating while pressing the base material A and the surface material B. At a portion where the lower roller 41, the upper roller 42 provided on the lower roller 41, the high frequency provided between the upper roller 42 and the upper roller 42 and arranged in parallel to the upper roller 42 side. Heating high frequency applying electrodes 43, 44, and this high frequency applying electrode 43,
44 and an elevating section D (see FIGS. 3 and 4) for elevating the upper roller 42 and the like. 45 is a carry-out roller.

The base material A guided to the bonding portion 4 is the upper roller 42 and the lower roller 41.
By, the base material A and the surface material B are pressurized, and the adhesive C is applied with an alternating electric field from the high frequency applying electrodes 43 and 44,
It is heated rapidly and the base material A and the surface material B are bonded.

That is, in the bonding portion 4, the base material A and the surface material B pass while being pressed, and the adhesive C is applied to the high frequency applying electrode 4
The base material A and the surface material B are bonded by being heated by the alternating electric field from 3 and 44.

Since this flow is possible continuously, a step of continuously adhering the base material A and the surface material B on a line becomes possible.

The lower roller 41 is rotated by a lower roller driving motor (not shown) provided on the base 50 via gears 51, 52 and the like.

That is, the lower roller 41 is on the driving side and the lower roller 42 is on the driven side.

Further, the high frequency applying electrode 43 (44) is supported by the support member 60, and the high frequency applying electrode 43 (44) and the upper roller 42 are provided with a space (for example, 2 mm).

This is because the surface material B has a warp
This is because the surface material B may damage the high frequency applying electrode 43 (44) if the upper roller 42 and the upper roller 42 are on the same surface.

Further, in consideration of the case where the warp condition greatly varies depending on the thickness, type, etc. of the surface material B, the interval can be changed up and down by a screw 61 or the like to be finely adjusted.

The support member 60 is integrally connected to a bearing member 62 having a bearing that receives the shaft of the upper roller 42.

The support member 63 connected to the bearing member 62 is fitted in the screw shaft 80 (81) so as to be able to move up and down, and the force (self-weight) applied to the support member 63 causes the support member 63 to move downward and its movement. Is regulated by the stopper 65.

Reference numerals 70 and 71 denote link members such as gears. The link member 70 rotates the lifting motor 72 via gears 73 and 74,
The screw shaft 80 moves up and down.

Further, the other linking member 71 also controls the rotation of the lifting motor 72 by the gears 73, 7
4, the screw shaft 81 moves up and down by rotating via the connecting shaft 75, the gear 76 and the like. Along with that, the upper roller 42 and the high frequency applying electrode 43 (44) integrally connected to the supporting members 63 and 60 also move up and down.

The bearing member 62 is pushed downward by the rod 92 of the cylinder 91 fixed to the frame 90.

That is, the interval T between the upper roller 42 and the lower roller 41 is equal to the total thickness T ′ of the surface material B placed on the base material A via the adhesive C.
It is adjusted to be smaller (T <T 'see FIG. 2).

By doing so, the surface material B placed on the base material A sent via the adhesive C contacts the upper roller 42, the upper roller 42 moves upward, and the internal pressure of the cylinder 91 is increased by the rod 92, The surface material B is received via the bearing member 62 and the upper roller 42, and the base material A and the surface material B are pressurized.

When an alternating electric field is applied from the high frequency applying electrodes 43 and 44 in such a pressurized state, the adhesive C is heated and hardened, and the base material A
And the surface material B are adhered.

In this embodiment, the first roller is the upper roller 42 and the second roller is the second roller.
Although the above roller is described as the lower roller 41, the present invention is not limited to this, and it goes without saying that the first roller and the second roller may be provided on the side surface side of the main body of the surface material bonding machine. .

In short, an adhesive is provided between the base material and the surface material, and the base material and the surface material are bonded by high frequency heating while pressing the base material and the surface material with the first roller and the second roller. In the bonding method, the high-frequency applying electrodes for high-frequency heating may be arranged side by side on the roller side closer to the surface material in the first roller and the second roller.

That is, since the high-frequency applying electrodes 43 and 44 for high-frequency heating are arranged side by side on the roller side (upper roller 42 in the embodiment) closer to the surface material of the first roller and the second roller, the base material A Even if the thickness changes (for example, 20 mm to 150 mm), since the thickness of the surface material B does not change so much (for example, 0.6 mm to 3 mm), the heating conditions do not change so much, and the high-frequency heating device is not so different from the conventional one. No need to adjust.

Further, since the high frequency does not reach the surface material B, the adhesive material C, and the base material A that does not need to be heated, it is possible to improve the power consumption as compared with the conventional case.

Further, when the first roller is the upper roller 42 and the second roller is the lower roller 41, the high-frequency applying electrodes 43, (44) are not located on the lower roller 41 side as in the conventional case, and the base material A It is also possible to reduce the risk that dust and the like will be accumulated on the high-frequency applying electrode on the lower roller 41 side and will be discharged.

Further, in this embodiment, the high frequency applying electrodes 43, 4 for high frequency heating are used.
4 are arranged in parallel to the side of the upper roller 42, but this may be placed at a right angle to the traveling direction of the base material A as shown in FIG. 2, and as shown in FIG. 5 and FIG. In addition, the base material A may be placed parallel to the traveling direction.

As shown in FIG. 2, when it is placed at a right angle to the traveling direction of the base material A, heating unevenness due to high frequency heating occurs at the front end portion and the rear end portion of the base material A. As shown in the figure, when placed parallel to the traveling direction of the base material A, heating unevenness due to high frequency heating is improved as compared with that shown in FIG.

(Effect of the invention) As described above, according to the present invention, an adhesive is provided between the base material and the surface material, and the base material and the surface material are pressed by the upper roller and the lower roller by high frequency heating. In the bonding method for bonding a base material and a surface material, the high frequency heating electrodes for high frequency heating are arranged side by side on the roller side closer to the surface material in the first roller and the second roller. Since the electrodes for high frequency application of are arranged side by side on the side of the upper roller, even if the thickness of the base material changes (for example, 20 mm to 150 mm),
The thickness of the surface material does not change much (eg 0.6 mm
~ 3 mm), heating conditions do not change much, compared to conventional,
It is not necessary to adjust the high frequency heating device so much.

Further, since the high frequency does not reach the surface material, the adhesive and the base material which does not need to be heated, the power consumption can be improved as compared with the conventional case.

Further, since the first roller is the upper roller and the second roller is the lower roller, the high frequency applying electrode is not located on the lower roller side as in the conventional case, and scraps of the base material and the like are on the lower roller side. It has the effect of being able to improve the risk of being deposited on and discharging.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a surface material bonding machine for carrying out the method of the present invention, and FIG. 2 is an enlarged view of a part of the bonding portion of FIG. FIG. 3 is a front view showing a part of the bonding portion of the surface material bonding machine, FIG. 4 is a side view of FIG. 3, and FIG. 5 is a surface for carrying out the method of the present invention. It is a diagram showing another example of the bonding portion of the material bonding machine,
FIG. 6 is a plan view of FIG. A ... Base material, B ... Surface material, C ... Adhesive, 41 ... Second roller (lower roller), 42 ... First roller (upper roller) ), 43, 44 ... Electrodes for high frequency application.

Claims (2)

[Claims] 1. An adhesive is provided between a base material and a surface material, and the base material and the surface material are subjected to high-frequency heating while pressing the base material and the surface material with a first roller and a second roller. In the bonding method for bonding, the high-frequency applying electrodes for high-frequency heating are arranged side by side on the roller side closer to the surface material in the first roller and the second roller, and the base material and the surface material. Adhesion method to bond with. 2. A bonding method in which an adhesive is provided between the base material and the surface material, and the base material and the surface material are bonded by high frequency heating while pressing the base material and the surface material with the upper roller and the lower roller. 3. The bonding method for bonding a base material and a surface material, wherein the high-frequency applying electrodes for high-frequency heating are arranged side by side on the upper roller side.