JP3422893B2 - How to attach the soundproof and vibration proof sheet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a soundproofing / vibration-proof sheet body to a soundproofing / vibration-proof sheet body on a thin metal plate work.

[0002]

2. Description of the Related Art Conventionally, as a method for attaching a soundproofing / vibration sheet body to a thin metal plate-like work, a sheet body is applied to a predetermined portion of the work and then a near infrared furnace or The entire work was heated in an atmosphere furnace, the sheet body was softened so as to conform to the uneven shape of the work, and the work was fused.

[0003]

However, in such a method, the heating time is relatively long, and
Since the non-adhered portion is also heated at the same time, energy (electricity) is wasted. Further, it is difficult to support and fix the work in an appropriate direction and position in order to uniformly attach the sheet body to a predetermined portion of the work of various sizes and shapes. Further, since the equipment itself is relatively large, the equipment investment is high and the production cost is high.

Therefore, the present invention can reduce the production cost, and can easily and surely attach the soundproof / vibration sheet body to metal thin plate-shaped works of various sizes and shapes. It is intended to provide a method of attaching a body.

[0005]

In order to achieve the above-mentioned object, a method for attaching a soundproof / vibration-proof sheet body according to the present invention comprises:
The uneven panel receiving surface of the heating die is heated by a planar heating element attached to the heating die, and then a thin metal plate-shaped work is placed on the uneven panel receiving surface, and A soundproof / vibration-proof sheet body is brought into contact with the upper surface of the work, and the sound-proof / vibration-proof sheet body is pressed against the work by an elastically deformable pad to be fused. In addition, the bottom surface of the uneven metal thin plate work
In the sheet body attachment corresponding part, the concave shape along the work
Make sure that the convex panel receiving surface is in full contact with and supports the above work.
Heat the workpiece and place the workpiece on the mounting member side.
It is pulled up by a gunet and air cooled.

[0006] Further, the planar heat generated by the heating die is used.
Heating the uneven panel receiving surface of the heating mold by the body, its
After that, a metal thin plate-like work is placed on the concave-convex panel receiving surface,
Moreover, the soundproof / vibration sheet body is brought into contact with the upper surface of the work,
Use the elastically deformable pad to place the above-mentioned sound and vibration-proof sheet
The work is pressed and fused . Further, the sheet pinning corresponding portion of the lower surface of the metal thin plate-shaped work of irregularities, the work
The concave-convex panel receiving surface having a shape conforming to the above heats the work by contacting and supporting the entire surface , and the concave-convex panel.
The pin protrudes upward from the tool receiving surface and floats the hot workpiece above.
After that, it is taken out from the above heating mold .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings showing the embodiments.

The present invention is, for example, a soundproof and thin metal plate work such as a dashboard lower panel for automobile parts.
1 and 2 show a method for attaching a soundproofing / vibration sheet body, in which a vibration-proof sheet body is attached to reduce the vibration and noise of a mechanical device having this work as one component. The sticking device E used is shown. This sticking device E includes a frame body 5
A heating die 1 for placing a work, and a planar heating element 4 attached to the heating die 1 for heating the die 1.
An actuator 7 fixed to the frame body 5 and an elastically deformable pad 3 attached to the actuator 7 and vertically reciprocating are provided.

The frame main body 5 fixed to the floor surface 30 is of a chair type, and is connected to the four pillar portions 8 ... And the lower portions of the pillar portions 8 ...
A connecting rod portion 9 of a book, and an upper opening-shaped cradle portion 6 fixed to the upper end portions of the two short pillar portions 8 and 8 and the outer surface 29 of the long pillar portions 8 and 8. There is. In addition, the heating mold 1 having the uneven panel receiving surface 2 on the upper surface has the outer periphery thereof as a fixed frame for the mold.
It is surrounded by 10 and is housed and held in the cradle portion 6 together with the fixed frame 10. The heating die 1 will be described in detail later.

Further, the planar heating element 4 is made of, for example, a meandering nichrome foil attached to a sheet material or the like into a planar shape, which is flexible and can be attached to a three-dimensional surface. ─
Is placed on the back surface 11 of the heating mold 1 housed in the cradle part 6.
One sheet or (evenly) a plurality of sheets are attached (see FIG. 3). Although not shown, the planar heating element 4 is turned on.
The OFF switch has a structure capable of automatically maintaining a constant temperature via a temperature controller. Moreover, this set temperature can be freely set according to the object to be heated.

A fixed rod 12 is horizontally connected to an outer surface 29 on the front side of the two long pillars 8 and 8 and is attached to the fixed rod 12 (L-shaped in side view). The plate 13 is fixed, and the actuator 7 is vertically fixed to the horizontal plate portion 13a of the mounting plate 13. Further, a mounting member 14 for mounting the pad 3 is fixed to the lower end of the rod 7a of the actuator 7. The pad 3 will be described in detail later.

L-shaped rods 15 and 15 are fixed to the outer surface 29 on the rear side of the upper portions of the long rods 8 and 8 and rods extending laterally from the rods 8 and 8. A box 16 is fixedly installed on the 15 and 15. This box 16 is for the actuator 7
It is provided with an electric device for driving, a temperature controller for controlling the temperature of the planar heating element 4, a power transformer, a heating timer and the like.

The operation panel 18 having switches 17 for operating the actuator 7 is located in front of (in front of) the device E.
It is provided on the side-predetermined work position of the worker. Specifically, the operation panel 18 is fixed to the fixed rod portion 19 (connected to the short pillar portions 8 and 8) via the L-shaped support member 26. In addition, above this fixed rod portion 19, guard members 20 and 20 for preventing workers' danger are provided, and the pillar portions 8 and 8 are provided.
And is fixed to the pedestal portion 6.

As shown in FIG. 3A, however, the heating die 1 is made of a metal such as aluminum or copper having good heat conductivity, and its upper surface (contact surface) is a metal thin plate work. twenty three
Concavo-convex panel receiving surface 2 having a concavo-convex shape that follows the concavo-convex shape of
It is said that. In order to form the concave-convex panel receiving surface 2, the target contact portion of the workpiece 23 (the lower surface 27 side in the illustrated example).
By utilizing, it is possible to easily obtain an accurate uneven shape. Further, the back surface 11 of the heating mold is not limited to a flat surface and can be a three-dimensional surface (a flat surface in the illustrated example).

The pad 3 is made of, for example, silicon (rubber).
Is formed of elastically deformable heat-resistant rubber or heat-resistant plastic or the like, and has an outer surface integrally formed with a dense skin portion 21 and made of the same material. The pad 3 presses the asphalt-type soundproofing / vibration-proofing sheet body 22 against the upper surface 28 of the work 23, but the contact surface 24 (skin portion 21) of the pad 3 contacts along the uneven shape of the work 23. The surface 24 also has an uneven portion that follows this uneven shape.
25 are formed. In addition, in order to form the uneven portion 25, the contact corresponding portion of the target work 23 (similar to the above) (the upper surface in the illustrated example)
By using the (28 side) to perform cast molding, it is possible to easily obtain an accurate uneven shape.

Therefore, in the method for stretching the soundproofing / vibrationproofing sheet body according to the present invention, as shown in FIGS. 1 and 3 (a), first, the planar heating elements 4 ... Heat mold 1. Then, when the heat is transmitted and the concave-convex panel receiving surface 2 of the mold 1 reaches a predetermined temperature, the first work 23 is placed on the panel receiving surface 2, and the upper surface 28 of the work 23 is sound-proofed / vibrated. The sheet body 22 is brought into contact (placed). Alternatively, the work 23 on which the soundproof / vibration-proof sheet body 22 is previously mounted may be mounted on the panel receiving surface 2. Then, the concavo-convex panel receiving surface 2 of the heating die 1 is in full contact with and supports the lower surface 27 of the work 23 to heat the work 23, and this heat is applied to the sheet body 22 via the work 23. It is transmitted.

After that, both switches 17, 17 on the operation panel 18
Are pressed simultaneously to drive the actuator 7, and the pad 3
To lower the soundproof / vibration-proof sheet body 22 against the work 23. That is, the actuator 7 has both switches 17, 17
It is wired so that it will not work unless both are pressed at the same time. This is to prevent the operator from pressing the switch because the work is dangerous. Safety measures are taken to push the switch. Moreover, the emergency stop switch 33 is installed.

The predetermined temperature is a temperature at which the sheet body 22 is fused to the work 23, and is set in a range of about 110 to 180 ° C. (preferably around 150 ° C.). Predetermined time until the workpiece 23 reached this fusion temperature,
The sheet body 22 is pressed (mainly pressed) against the work 23 and fused.
Further, the main pressurization of 1 kg / cm ² or less is sufficient.

After a lapse of a predetermined time, as shown in FIG. 3B, the pad 23 is lifted and the work piece 23 to which the sheet body 22 is integrally fused (attached) is set on the mounting member 14 side. It is pulled up by the magnets 31 and 31 and air-cooled. At this time, the timer in the box 16 presses the switches 17, 17 of the operation panel 18 to count a predetermined time, and when the predetermined time elapses, the actuator 7 is automatically operated (the pad 3 is raised. The structure is such that the main pressurization is completed. Or, when taking out the work,
The pin projects upward from the convex panel receiving surface 2,
Float the hot work piece 23 (after it is attached) and remove it from the mold 1.
The structure is designed to make it easy to project.

After that, the second and third work pieces are sequentially worked 23 ...
And the sheet bodies 22 ... Are placed (as described above), and are pressed by the pads 3 so that the sheet bodies 22 ...

Although not shown, after the step of attaching the sheet body 22 is completed, an inner lining plate called a constrained steel sheet formed along the uneven shape of the sheet body 22 is abutted and heated in a drying oven or the like. The lining plate, the sheet body 22 and the work 23 are integrated.

If the metal thin plate-like work 23 to which the soundproofing / vibrationproofing sheet body 22 is thus attached is used as a component such as a dashboard lower panel of a vehicle or a body of a generator, a machine such as an engine or a gear can be obtained. Vibration and noise can be reduced. Further, since the uneven panel receiving surface 2 of the heating die 1 is in full contact with and supports the lower surface 27 of the work 23, the work 23 does not wobble or deform, and the pad 3 is used to ensure the sheet body. The work piece 23 can be attached by pressing the work piece 22. In particular, it is advantageous for a small piece (small area) of the work 23.

The present invention is not limited to the above-mentioned embodiments, and design changes can be freely made without departing from the gist of the present invention. For example, when the sheet body 22 is stretched only on a part of the total area of the work 23, which corresponds to the sheet body attachment, the uneven panel receiving surface 2 of the heating die 1 is the sheet body. It is good to receive only the sticking part (it has an energy saving effect). Further, as a method of sticking the sheet bodies 22 one after another, the sticking apparatus E may be installed at a fixed position on the line and the work 23 may be intermittently conveyed. It is also preferable to embed the planar heating element 4 inside the heating die 1 in consideration of thermal efficiency . Its to, the pad 3
The contact surface 24 of may be flat and may be uneven only when pressed against the work.

[0024]

Since the present invention is configured as described above, it has the following effects.

(According to the method of attaching the soundproofing / vibration-proofing sheet body according to claim 1), the soundproofing / vibration-proofing sheet is attached to the work 23 by the attaching device E having a relatively simple structure which does not require large-scale equipment. Since the body 22 can be attached, the facility investment is low, and the production cost can be reduced by reducing the electricity charge by the partial heating method. In addition, it was heated by the planar heating element 4.
The heating mold 1 efficiently conducts heat to the work 23.
Work that can be deformed and is easily deformed 23 ─── For example, gold
It is also suitable for workpieces with many flat parts such as thin metal plates.
Easy to use without wobbling or deforming
Further, the sheet body 22 is surely pressed by the pad 3 and the work piece 23 is pressed.
Can be attached to. Especially for small pieces (small area)
It is effective in the case of KU23, and of energy (electricity)
There is also a saving effect. In addition, the high temperature workpiece 23
Since it is pulled up by 31, 31, it is easy to take out from the mold 1.
Yes.

(According to the method for attaching the soundproof / vibration-proof sheet body according to claim 2) Relatively simple without requiring large-scale equipment
With a sticking device E with a simple structure, the work 23 has sound and vibration-proof sheets.
Since the body 22 can be attached, capital investment is inexpensive
Therefore, the production cost is reduced due to the reduction of electricity charges by the partial heating method .
Eun can do it. In addition, the heating die 1 heated by the flat heating element 4 can efficiently transfer heat to the work 23 and is easily deformed. For example, the work of a flat surface of a metal thin plate. Even if there are many workpieces, the workpieces 23 can be easily and reliably pressed against the sheet body 22 by the pad 3 without wobbling or deforming the workpieces 23.
Can be attached to. Particularly, it is effective in the case of a small piece (small area) of the work 23. At the same time, there is an energy (electricity) saving effect. Also, the high temperature work after the sheet body 22 is attached.
Remove the 23 from the mold 1 because it will be floated by the pin.
easy.

[Brief description of drawings]

FIG. 1 is a perspective view of a sticking device used in a method for sticking a soundproof / vibration-proof sheet body according to the present invention.

FIG. 2 is a side view of the sticking device.

FIG. 3 is a state explanatory view showing a sticking process.

[Explanation of symbols]

1 Heating Die 2 Concavo-convex Panel Receiving Surface 3 Pad 4 Planar Heating Element 22 Sound / Vibration Sheet Body 23 Workpiece 27 Bottom 28 Top 31 Magnet

Claims (2)

(57) [Claims] 1. An uneven panel receiving surface 2 of the heating die 1 is heated by a planar heating element 4 attached to the heating die 1.
After that, a metal thin plate-like work 23 is placed on the uneven panel receiving surface 2, the soundproof / vibration-proof sheet body 22 is brought into contact with the upper surface 28 of the work 23, and the soundproofing is performed by the elastically deformable pad 3.・
Soundproofing that the vibration-proof sheet body 22 is pressed against the work 23 and fused
・ A method of attaching a vibration-proof sheet body, in which the sheet body is attached to the lower surface 27 of the uneven metal thin plate-like work 23.
In the corresponding portion, the uneven panel having a shape along the work 23
The receiving surface 2 makes contact with and supports the entire surface and applies the work 23.
A magnet that heats and the work 23 is installed on the mounting member 14 side.
Soundproofing characterized by being pulled up and air-cooled by 31, 31
How to attach the anti-vibration sheet. 2. A planar heating element attached to the heating die 1.
4 in heating the uneven panel receiving surface 2 of the heating mold 1,
After that, a metal thin plate-like work 23 is placed on the uneven panel receiving surface 2.
Placed on the upper surface 28 of the work 23, a soundproof / vibration-proof sheet
The body 22 is brought into contact with the pad 3 which can be elastically deformed, so that the sound
Soundproofing that the vibration-proof sheet body 22 is pressed against the work 23 and fused
A method for attaching a vibration-proof sheet body, wherein the uneven panel having a shape along the work 23 is provided on the sheet body corresponding portion of the lower surface 27 of the uneven metal thin plate-like work 23.
Receiving surface 2 is fully contacted and supported to heating the workpiece 23 and, protruding from the uneven panel receiving surface 2 pin upward
Then, the work 23 having a high temperature is floated and the heating mold 1 is used.
A method of attaching a soundproof / vibration-proof sheet body, which is characterized in that