JPH08337762A - Heating bonding device - Google Patents

Abstract

PURPOSE: To provide a new heating bonding device carrying out heating bonding of a metal material and a non-metal material with an adhesive by taking advantage of direction current-carrying heating. CONSTITUTION: This heating bonding device is equipped with a material holder 2 to which a material 1 obtained by laminating a metal material 11 through an adhesive 13 to a nonmetal 12 is attached, a pressurizing member 3 which is brought closely to the material 1 attached to the material holder 2 to pressurize the material 1 is separated to release the pressure and a direct current- carrying electrode 4 which is brought closely to the material 1 attached to the material holder 2 is brought into contact with the metal material 11 of the material 1 under pressure and separated to release the contact of the metal material 11 of the material 1 under pressure and sets the approaching directions of the pressurizing member 3 and the direct current-carrying electrode 4 toward the material 1 so as to make the directions oppose each other through the bonding face of the material 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat bonding device. More specifically, the present invention relates to a novel heat-bonding device that heat-bonds a metal material and a non-metal material with an adhesive using direct electric heating.

[0002]

2. Description of the Related Art Conventionally, as a heat bonding technique, for example,
There is one proposed by the present applicant as Japanese Patent Application No. 5-326687.

As shown in FIG. 7, the conventional heat-bonding technique proposed by the applicant of the present invention is such that a metal material A and a non-metal material B are superposed on each other with an adhesive C interposed therebetween and pressed to form a metal. The electrode E connected to the electric equipment D is pressed against the material A and directly heated by energization to heat the metal material A to heat and melt the adhesive C,
This is a heat-bonding method in which the metal material A and the non-metal material B are bonded by the adhesive C that has been melted by heating to exhibit adhesiveness.

In the conventional heat-bonding technique proposed by the applicant of the present invention, a large pressure jig, which has been used before that,
Compared to the heating and bonding technology that uses a heating furnace for white kerosene, it has the advantages of simpler equipment and smaller size.

[0005]

In the above-mentioned conventional heat-bonding technique proposed by the applicant of the present invention, the specific apparatus configuration for mass production has not been developed and completed.

The present invention is a continuous development of the conventional heat-bonding technique of the above-mentioned applicant's previous proposal, in which a metal material and a non-metal material are directly heat-bonded with an adhesive by using electric heating. An object of the present invention is to provide a new heat bonding device.

[0007]

In order to solve the above-mentioned problems, the heating and bonding apparatus according to the present invention employs the following means.

That is, according to the first aspect, a material holder on which a material made by laminating a metal material and a non-metal material via an adhesive is mounted, and a material is pressed in proximity to the material mounted on the material holder. A pressure member that separates and releases the pressure on the material, and a direct energizer that closes the material mounted on the material holder and presses it against the metal material to separate it from the pressure on the metal material. An electrode is provided, and the approaching direction of the pressing member and the direct current-carrying electrode to the material are set to face each other via the bonding surface of the material.

According to a second aspect of the present invention, in the heat-bonding device according to the first aspect, a plurality of sets of material holders, pressure members, and electrodes for direct conduction are arranged in parallel, and the electrodes for direct conduction are electrically connected in series. And

According to a third aspect of the present invention, in the heat bonding apparatus according to the second aspect, the material holder and the pressing member are arranged in parallel on different parallel surfaces in the same arrangement, and the material holder side or the pressing member side is on the parallel surface. It is characterized by making it possible to slide with.

Further, in a fourth aspect of the present invention, in the heat bonding apparatus of the first aspect, the material holder and the pressing member can be exchanged.

[0012]

According to the above-mentioned means, in the first aspect, the pressing member and the direct current-carrying electrode are separated from the material holder, and the material holder is provided with the metal material of
Non-metal materials and adhesives are laminated and mounted, or materials bonded by pressure and heat are removed from the material holder. Further, when the material is pressed and heated, the pressing member and the direct current-carrying electrode are brought close to the material, and the direct current-carrying electrode is pressed against the metal material by the reaction force generated by the pressing of the pressing member. , It becomes a state in which energization is possible with the contact resistance suppressed.

According to a second aspect, in the operation of the first aspect,
Direct electric heating is simultaneously performed on a plurality of materials.
A plurality of materials are energized by shortening the conductor distance and suppressing the resistance.

According to a third aspect, in the operation of the second aspect,
The slide allows the material holder to be widely opened around the material holder when loading or unloading the material.

According to a fourth aspect, in the operation of the first aspect,
The material holder and the pressure member are exchanged according to the shape and size of the material.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the heat bonding apparatus according to the present invention will be described below with reference to FIGS.

1 to 5 show a first embodiment of a heating and bonding apparatus according to the present invention.

The target material 1 of this embodiment is a metal material 11 made of a brake shoe used for a drum brake of a vehicle, a non-metal material 12 made of a lining forming a friction surface of the brake shoe, and a metal material. 11, and an adhesive 13 for adhering the non-metal material 12.

The metal material 11 is made by assembling steel plates into a T shape by welding or the like. The non-metal material 12 is formed by mixing short fibers such as asbestos with a binder of a thermosetting resin, pressurizing and heating, and shaping into a curved plate shape. The adhesive material 13 melts when heated and exhibits adhesiveness.
As a specific example of the adhesive 13, a phenol type having a strong resistance to impact, bending and peeling is preferable, and the trade name "Cemedine CS-2711" is a nitrile-phenol type and has a high curing temperature and excellent heat aging resistance. It is valid.

In this embodiment, as shown in FIG. 1, the material holder 2, the pressing member 3, the direct current-carrying electrode 4, and the slide table 5 are main parts.

The material holder 2 can be made of ceramics or the like having an insulating property and a heat insulating property. The material holder 2 can be formed in a semi-cylindrical shape as shown in the drawing, and has a heating oil passage 21 for preheating therein.
And a narrow groove 2 into which the T-shaped lower portion of the metal material 11 of the material 1 can be inserted from the curved upper surface 22 to the side surface 23.
4 is cut. At the bottom of the material holder 2 is a seat 2
5 may be projected laterally.

A plurality of the material holders 2 are arranged in two rows on the upper surface 51 of the horizontal slide table 5 at regular intervals. The material holder 2 can be attached to and detached from the upper surface 51 of the slide table 5 and can be replaced according to the size and shape of the material 1. That is, the seat 2
5 is provided with a hole 26 and can be detachably fixed to the slide table 5 with a bolt 27 from the hole 26. In addition, it is also possible to mount the seat portion 25 through a mounting tool without projecting it.

The slide table 5 is constructed by assembling a rectangular flat plate from a frame or the like, has a ball screw 53 and a runner 54 on the lower surface 52, and the ball screw 53 is the upper surface 61 of the base 6.
Rail 9 mounted on the upper surface 61 of the base 6 by being screwed onto a screw rod 8 which is rotated via a rotary drive unit 7 composed of a motor 71, a timing pulley 72, and a timing belt 73. Is engaged with. Therefore, the slide table 5 can slide on the upper surface 61 of the base 6 along the screw rod 8 and the rail 9. Further, the slide table 5 can be collectively removed from the base 6 by releasing the screw engagement with the screw rod 8. The base 6
The lower surface 62 is provided with casters 63 and legs 64 so that it can be moved and installed at any position.

The pressing member 3 comprises a pressing plate 31 formed of a curved spring material corresponding to the upper surface 22 of the material holder 2 and a pressing plate holder 32 supporting the pressing plate 31. Both ends of the pressure plate 31 are supported by a pair of pressure plate holders 32, 32, and the pressure region is made of spring elasticity. The pressure plate 31 is attachable to and detachable from the pressure plate holder 32, and can be replaced according to the size and shape of the material 1.
In this case, only the pressure plate 31 is attached / detached via the bolts 33 on the outside of the pressure plate holders 32.

The pressing member 3 is supported so that the pressing plate holder 32 can be moved up and down by a hydraulic cylinder 20 fixed to a housing 10 installed in a tunnel shape on the upper surface 61 of the base 6. The pressure plate holder 32 of the pressure member 3 is guided to move up and down by a guide shaft 30 penetrating the housing 10. A plurality of the pressing members 3 are arranged in parallel corresponding to the material holder 2. Therefore, as shown in FIG. 4, the slide of the slide table 5 enables the arrangement of the material holder 2 and the pressing member 3 to be aligned in the vertical direction.

The direct current-carrying electrodes 4 consist of a pair provided on both side surfaces 23 of each material holder 2, and have a small groove into which the T-shaped lower portion of the metal material 11 of the material 1 can be inserted at the upper end. 41 is cut, a connecting terminal 42 is provided on the upper part, and a pressure contact drive rod 43 is provided on the lower part. Further, an electrode surface 44 which is curved corresponding to the shape of the back surface of the end portion of the metal material 11 is formed at the upper end.

The direct current-carrying electrode 4 is guided by a guide 40 provided on the upper surface 51 of the slide table 5,
It can be moved up and down through the slide table 5.
The pressure contact drive rod 43 of the direct current-carrying electrode 3 projects downward from the lower surface 52 of the slide table 5 to
A pneumatic cylinder 50 installed on the upper surface 61 of the base 6 inside the 0 is driven up and down. Note that a plurality of pneumatic cylinders 50 are arranged in parallel so as to correspond to the parallel arrangement of the direct energizing electrodes 4. Therefore, this direct current-carrying electrode 4 is also attachable / detachable to / from the slide table 5.
It can be replaced according to the size and shape.

Further, electrical equipment (not shown) for directly conducting heating is connected to the direct conducting electrode 4.
It is conceivable that this electric equipment includes, for example, a thyristor in a primary circuit connected to an AC power source to enable current control of the primary circuit. Then, the secondary circuit is connected to the primary circuit through a transformer, and the current-carrying electrode 4 is directly connected to the secondary circuit, and the metal material 11 of the material 1 having a small impedance is used.
Corresponding to, it is possible to transform to low voltage. An infrared heat sensor that detects the temperature of the metal material 11 of the material 1 is preferably connected to the thyristor of the primary circuit. Further, as shown in FIG.
All materials 1 are connected in series so that they can be directly energized and heated at the same time.

On the side surface of the base 6 where the housing 10 is installed, a thermometer 60 corresponding to each material holder 2, a pressing member 3, and a direct current-carrying electrode 4 and a temperature adjustment photograph 70 are provided. Is provided.

According to this embodiment, to use, first,
The metal material 11 and the non-metal material 12 of the material 1 are superposed and laminated with the adhesive 13 interposed. For the lamination of the material 1, application, spraying or the like is selected according to the property of the adhesive material 13, and it is usually performed at room temperature.

At this time, the metal material 11 of the material 1 is attached to the upper surface 22 and the narrow groove 24 of the material holder 2 and the adhesive material 1 is used.
3, non-metal material 12 can be stacked one after another,
It is also possible to temporarily stack the metal material 11, the non-metal material 12, and the adhesive material 13 at different locations and mount them on the material holder 2.
The shape of the upper surface 22 of the material holder 2 and the narrow groove 24 are
The unexpected dropping of the material 1 from the material holder 2 is prevented. In any case, as shown by the solid line in FIG. 4, the slide table 5 is pulled out from the housing 10 and the material holder 2
When the work is performed with the upper and lateral sides of the
The mounting work becomes easy. Since the slide table 5 is comparatively heavy and the hydraulic cylinder 20 and the pneumatic cylinder 50, which require the connection of oil and air supply systems, are not installed, the slide table 5 can be smoothly and easily slid.

Next, as shown by the chain double-dashed line in FIG. 4, the slide table 5 is slid into the housing 10 to drive and operate the hydraulic cylinder 20, the pneumatic cylinder 50, and electrical equipment to add the material 1. Apply pressure and heat.

At this time, since the material holder 2 is a fixed type and the pressure member 3 is a movable side, the material 1 can be pressed in a stable posture. In addition, the pressure member 3
Since is made of a spring material, it is possible to prevent uneven pressure distribution. Further, since the pressing force of the pressurizing member 3 due to the driving of the hydraulic cylinder 50 acts as a reaction force against the pressure contact of the material 1 of the electrode 1 for direct conducting with the driving of the pneumatic cylinder 50 to the metal material 11, direct energization is performed. Material 1 for electrode 4
The pressure contact or close contact with the metal material 11 is ensured, and the contact resistance is pressed as low as possible.

When the metal material 11 of the material 1 is directly energized and heated, Joule heat causes the metal material 11 to generate heat to heat and melt the adhesive material 13. Then, the adhesive material 1 that has been heated and melted
By 3, the metal material 11 and the non-metal material 12 are bonded. Although the impedance of the metal material 11 increases due to the temperature rise due to the heat generation of the metal material 11, the thyristor controls the current of the primary circuit based on the temperature detected by the infrared heat sensor of the electric equipment described above. Can be dealt with. In addition, a plurality of materials 1 can be obtained by connecting the direct current-carrying electrodes 4 in series.
It is suitable for mass production because it can be bonded simultaneously.

In this embodiment, the metal material 11 itself directly generates heat, the material holder 2 is made of ceramics having a good heat insulating property, the material holder 2 is preheated, and the material holder 2 Housing 10 around
By surrounding with, it is possible to prevent the heat generated by the metal material 11 from being unnecessarily radiated. Therefore, the thermal efficiency is as high as about 80% and the bonding cost is reduced.

The table unit 5 has a ball screw 5
3 and the screw rod 8 are unscrewed, and the rail 9 is connected to the runner 5
If 4 is removed, they can be collectively removed, and preparation for changing to a material having a different size or shape can be easily performed in a short time. Of course, it is possible to easily partially change only the material holder 2.

Further, the pressure plate 31 can be easily removed by simply loosening the bolts 33 from the pressure holders 32, 32, and a different pressure plate can be inserted into the pressure member 3 for a very short time.
Can be exchanged.

The inventor of the present invention has conducted an experiment on a brake shoe and a lining used for a drum brake of an ordinary passenger car, and has obtained a good adhesion effect.

That is, the metal material 11 which is the brake shoe and the non-metal material 12 which is the lining are mounted on the material holder 2 via the adhesive material 13, and the material holder 2 is preliminarily set to 150.
After heating up to ℃, pressurize with a total pressure of 1t, set the AC power supply of the electric equipment to 200V of single phase, and set the voltage of the secondary circuit to 2V.
V, current is 330 A, direct current heating for 2 minutes is performed to heat the metal material 11 to 200 ° C., heating for 2 minutes is continued, and the metal material 11 is cooled to 100 ° C. by gradual cooling for 1 minute. It is an experiment with the contents.

After the above-mentioned pressurization and heating are completed, as shown by the solid line in FIG. 4, the slide table 5 is slid to remove the bonded material 1 from the material holder 2.

FIG. 6 shows a second heating and bonding apparatus according to the present invention.
It shows an embodiment.

This embodiment is directed to a relatively small scale implementation and has a simplified structure.

In this embodiment, the pneumatic cylinder 50 described above is installed on the slide table 5 to prevent the displacement of the direct energizing electrode 4 and the pneumatic cylinder 50. In addition, the slide table 5 is provided with a handle 55 so that the slide table 5 can be manually slid. Further, a stopper 80 for restricting the slide stop position of the slide table 5 is provided.

Further, in this embodiment, a guide 90 which advances and retracts in the direction of the upper surface 22 of the material holder 2 is provided so that positioning can be performed when the non-metal material 12 of the material 1 is laminated.

As described above, in addition to the illustrated embodiment, when the material 1 is the non-metal material 2 bonded to both sides of the metal material 1 or the non-metal material 2 is bonded to the pillar-shaped or tubular metal material 1. In order to deal with the above, it is also possible to adopt an embodiment in which each part is modified.

[0046]

As described above, according to the heat bonding apparatus of the present invention, a metal holder, a bonding material, and a non-metal material are stacked on a material holder to be in a pressurized state, and the pressure is used for direct energization. Since the electrode is brought into close contact with the metal material and the contact resistance is suppressed and the metal material is directly energized, the metal material and the non-metal material can be firmly adhered by exhibiting effective adhesiveness to the adhesive material. There is an effect that the heat denaturation of can be wiped out.

Since only a plurality of materials can be directly energized and heated directly at the same time, it is possible to eliminate the variation in adhesion between the materials and to further improve the adhesion efficiency.

According to claim 3 only, since the periphery of the material holder can be widely opened, there is an effect that the work of mounting and removing the material from the material holder is facilitated.

According to claim 4 only, the material holder and the pressing member can be exchanged according to the size and shape of the material, and there is an effect that the field of use of the apparatus can be expanded.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part showing a first embodiment of a heating and bonding apparatus according to the present invention.

FIG. 2 is a partially cutaway front view of FIG.

FIG. 3 is an overall front view showing the first embodiment of the heating and bonding apparatus according to the present invention.

FIG. 4 is a side view of a main part of FIG.

5 is a plan view of a main part showing an example of electrical wiring connection of FIGS. 3 and 4. FIG.

FIG. 6 is a front view of a main part showing a second embodiment of the heating and bonding apparatus according to the present invention.

FIG. 7 is a conduction circuit diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Material 11 Metal material 12 Non-metal material 13 Adhesive material 2 Material holder 3 Pressurizing member 31 Pressurizing plate 32 Pressurizing holder 4 Direct energizing electrode 44 Electrode surface 5 Slide table 6 Base

Front page continuation (72) Inventor Fumio Tanaka 3-18-14 Takada, Toshima-ku, Tokyo Shirayama Works, Ltd. (72) Inventor Haruo Komine 4-29-1, Nakanouemachi, Hachioji, Tokyo Nippon Brake Industry Within the corporation

Claims (4)

[Claims] 1. A material holder on which a material made by laminating a metallic material and a non-metallic material via an adhesive is mounted, and a material which is pressed close to the material mounted on the material holder to separate the material into a material. A pressure-applying member for releasing the pressurization of the material, and a direct current-carrying electrode for releasing the pressure-contact with the metal material of the material that is close to the material mounted on the material holder and is in pressure contact with the metal material of the material. A heating and bonding apparatus, characterized in that the pressing member and the direct current-carrying electrode are set so that their approaching directions to the material face each other via the bonding surface of the material. 2. The heating and bonding apparatus according to claim 1, wherein a plurality of sets of a material holder, a pressing member, and a direct current-carrying electrode are arranged in parallel,
A heat-bonding device characterized in that the electrodes for direct energization are electrically connected in series. 3. The heating and bonding apparatus according to claim 2, wherein the material holder and the pressing member are arranged in parallel on different parallel surfaces in the same arrangement, and the material holder side or the pressing member side is slidable on the parallel surface. A heat-bonding device characterized by the above. 4. The heating and bonding apparatus according to claim 1, wherein the material holder and the pressing member are replaceable.