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JPS61251300

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DESCRIPTION JPS61251300
[0001]
The present invention relates to a method of manufacturing a laminate of a metal plate and a
ceramic used for a piezoelectric buzzer or the like. (Prior Art) Generally, a piezoelectric buzzer is
a single metal plate (not shown), as shown in FIG. A sounding body 3 is used in which a ceramic
piezoelectric element 2 is bonded with an adhesive on one side of a diaphragm 1 which is
punched out into a circular shape. Conventionally, this sounding body 3 has been manufactured
as follows. First, an adhesive such as an epoxy resin is applied to one side of the diaphragm 1,
and the piezoelectric element 2 is placed on the adhesive. As described above, the large number
of diaphragms 1 and 1 in which the piezoelectric element 2 is placed on the adhesive applied on
one side. As shown in FIG. 5, these diaphragms 1, 1. ... as shown in Fig. 6 (a) and Fig. 6 (b)), with a
spacer 6 in which a resin sheet 5 such as Teflon is attached to a metal plate 4 having the same
dimensions as иии. Next, at least one process of bonding the piezoelectric element 2 to each
vibrating plate 1 by curing the above adhesive by pressing as shown by the arrow At to heat the
whole as shown by an arrow At. It is automatically scooped by a bonding device not shown. Thus,
the laminate P of the sounding body 3 in which the piezoelectric element 2 is adhered to the
diaphragm 1 and the scrubber 6 is taken out from the hardening case 7 and the arrow A2. As
shown by An, the operator manually separates the one sound emitting body 3 and the spacer 6
manually. The separated sound producing body 3 is accommodated in the container 8, and the
spacers 6 are temporarily placed on the spacer temporary placement table 9 having the groove
9a with a square shape, as shown in FIG. . The spacer 6 is accommodated in the magazine 10 and
loaded again into the bonding apparatus as shown in FIG. The sounding body 3 of the
piezoelectric buzzer is manufactured as described above, but the bonding process of bonding the
piezoelectric element 2 to the diaphragm 1 is automated, but after bonding the piezoelectric
element 2 to the diaphragm 1 The separation process of separating the sounding body 3 and the
spacer 6 relies on the human hand as described above, and in the production of the sounding
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body 3, compared with the bonding process of the piezoelectric element 2, the sounding body 3
and the spacer 6 The problem is that the efficiency of the separation process is low. SUMMARY
OF THE INVENTION The present invention has been made to solve the above problems, and it is
an object of the present invention to improve the efficiency of the separation process of a bonded
body of a metal plate and a ceramic plate and a spacer. It aims at providing the manufacturing
method of a bonded body. (Constitution of the Invention) For this reason, the present invention
applies pressure and heat to a laminate in which a metal plate on which a plate-like ceramic is
placed with an adhesive interposed therebetween is coaxially laminated with a spacer interposed
between them. After curing to form a laminate of a ceramic and a metal plate, the laminate and a
spacer.
After separating one of the metal plate and the spacer from the magnetic material and the other
from the nonmagnetic material, and supporting the laminated body in a horizontally overturned
state on the magnet. The invention is characterized in that the laminated body is rolled
downward, and one of the bonded body and the spacer is dropped to separate the both. That is,
in the present invention, when the spacer is formed of a magnetic body, the bonded body drops
and is separated from the spacer, and conversely, when the metal plate of the bonded body is
formed of a magnetic body , The spacer falls and is separated from the laminate. (Effects of the
Invention) According to the present invention, in a method of manufacturing a bonded body of a
metal plate and a plate-like ceramic, after a laminate of a metal plate, a bonded body of ceramics
and a spacer is supported on a magnet, Since this laminate is rolled over and one of the bonded
body and the spacer is attracted by a magnet and the other is dropped to separate the both, a
large number of bonded bodies and spacers processed by the bonding apparatus are obtained.
Can be separated at once, and the efficiency of the separation process between the laminate and
the laminate can be greatly improved. The present invention will be described in detail with
reference to the accompanying drawings. Front and side views of a separating apparatus for
carrying out the process of the invention are shown in FIGS. 1 and 2, respectively. In FIG. 1 and
FIG. 2, a rotary table 15 rotated by a crank 14 is rotatably supported by a support shaft
16.degree. There is. On the rotating table 15, for example, a separating table 18.18 for
separating the sounding body 3 of the piezoelectric buzzer and the spacer 6 is fixed. Each
separation stand 18 has a V-shaped groove 19 and partition plates 20 ░ 20,..., And between
adjacent partition plates 20.20, adhesion processing is completed by an adhesion device, FIG. For
example, the laminated body P of the sounding body 3 of the piezoelectric buzzer and the spacer
6 described in (a) and FIG. 6 (b) is taken out from the hardening case 7 and placed. As shown in
FIG. 3 (a), magnets 21 are also provided in the inside of each separation stand 18 described
above. The magnet 21 is connected to the separation lever 22 shown in FIG. 2, and by repeating
the separation lever 22, the magnet 21 is positioned parallel to the opening of the groove 19 of
the rotary table 15 (FIG. 3). It is possible to rotate from (a) and FIG. 3 (b) to a position
perpendicular to this opening (see FIG. 3 (c)). In the rotary table 15, a drop auxiliary brush 26
made of nylon is attached to a hollow metal fitting 25 which is raised in the direction of the
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groove 19 of the separating table 18 in the hollow beam 23.24.
Both of the above-mentioned beam beams 23 and 24 are fixed to the rotating table 15 at both
ends thereof by means of fixing brackets 27.28. Next, the method of separating the sounding
body 3 of the piezoelectric buzzer and the spacer 6 by the separating device will be described.
First, the laminated body P of the sounding body 3 of the piezoelectric buzzer and the spacer 6
which has been bonded by the bonding apparatus (not shown) is shown in FIGS. 6 (a) and 6 (b)
from the aluminum hardening case 7 shown in FIG. It takes out and it mounts on the groove 19
of the separation stand 18 of the separation apparatus shown to FIG. 1 and FIG. At this time, the
sounding body 3 taken out of the hardening case 7 and laminated with the spacer 6 interposed
therebetween is placed between the adjacent partition plates 20. In the above state, the magnet
21 in the separating table 18 is in a position parallel to the opening of the groove 19 as shown in
FIG. 3 (,), and a part of the magnetic field lines F out of the magnet 21 Run. Therefore, if one of
the diaphragm 1 of the sounding body 3 or the metal plate 4 of the spacer 6 is a magnetic
material and the other is a nonmagnetic material, the lines of magnetic force F run in the
diaphragm 1 or the metal plate 4. Presumably, the spacer 6 is attracted to the magnet 21. Next,
as shown in FIG. 2, when the crank 14 is rotated about 120 degrees from the position shown by
(a) to the position shown by (port) restricted by the stopper 29 (see FIG. 1), the rotary table 15 is
also pivoted, and the separation base 18.18 fixed thereon is also pivoted from the position shown
by (A) to the position shown by (A). Thereby, when the metal plate 4 of the spacer 6 is a
nonmagnetic material, a container (not shown) in which the spacer 6 is prepared in advance from
the separation base 18 as shown by an arrow A4 in FIG. 3 (b). ), And the sound generator 3
remains on the separation stand 18. At this time, the sounding body 3 remaining on the
separating table 18 tends to be inclined, and the spacer 6 may be pinched between adjacent
sounding bodies 3.3 and may not fall, so the fall auxiliary brush 26 is manually operated. The
spacer 6 remaining on the separating table 18 is dropped by reciprocating along the guy p beam
23.24. Next, after all the spacers 6 have fallen, the separation base 18.18 is maintained at the
above-mentioned (port) position. If the separation lever 22 of FIG. 2 is operated to rotate the
magnet 21 by 90 degrees. As shown in FIG. 3 (C), the magnetic field lines F leaving the magnet
21 run along the inner wall of the groove 19 of the separation base 18, and the diaphragm 1 of
the sound producing body 3 is not absorbed by the magnet 21. The sound generator 3 is a
separate container (not shown) prepared in advance. ) As shown by arrow A5. On top of this, a
large number of sounding bodies 3, 3
... and also Pacer 6.6. Can be easily separated by the operation of the crank 14 and the separation
lever 22. Even when the diaphragm 1 of the sounding body 3 is a nonmagnetic material, the
sounding bodies 3, 3. ???????????? ... can be separated. When the metal plate 4 of
the spacer 6 is a nonmagnetic material, after falling from the separating table 18, the front and
back are distinguished and aligned, and as shown in FIG. If resin sheet 5.5) is adhered to both
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surfaces of the metal plate 4, the distinction between the front and back of the spacer 6 is
eliminated, and the above alignment can be easily performed. In this case, the thickness of C) 5.5
is 1/2 or less of that of the sheet 5 attached to one side of the metal plate 4, and the number of
sounding bodies 3 that can be accommodated in the hardening case 7 It is preferable not to
reduce the The present invention is not limited to the sounding body 3 of the piezoelectric
buzzer, but can generally be applied to a metal plate and a ceramic laminated body. Alternatively,
an electromagnet may be used instead of the magnet 21 to electrically perform the on / off of the
adsorption.
[0002]
Brief description of the drawings
[0003]
1 and 2 are respectively a front view and a side view of a separating apparatus of a laminate of a
metal plate, a ceramic and a spacer for carrying out the method of the present invention, and
FIGS. 3 (a) and 3 ( b) and FIG. 3 (e) are explanatory views of the separation of the bonding body
of the metal plate and the ceramic and the spacer, respectively, FIG. 4 and FIG. 5 are plan views
of the sounding body and the spacer, and FIG. And FIG. 6 (b) are plan and front views of the
sounding body and the spacer housed in the hardening case, and FIGS. 7, 8 and 9 show the
conventional sounding body and the method of separating the spacer, respectively. FIG.
DESCRIPTION OF SYMBOLS 1 ... Diaphragm, 2 ... Piezoelectric element, 3 ... Sounding body, 4 ...
Metal plate, 5 ... Resin sheet, 6 ... Spacer, 7 ... Hardening case, 14. и crank, 18 ... separation stand, s
19 ... groove, 21 ... magnet, 22 ... separation lever, 26 ... dropping auxiliary brush, P ... laminate.
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