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JPS60129161

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DESCRIPTION JPS60129161
[0001]
A device for processing a paste on one side of a gasket plate for a speaker Generally, a cone-type
speaker is configured as shown in FIG. The pole piece 2 is placed at the central part of the back
plate 1 and the magnet 3 is placed at its peripheral part. The plate 4 is placed on the magnet 3 to
form a magnetic gap with the pole piece 2. A voice coil bobbin 6 carrying a voice coil 5 is
vibratably inserted into the magnetic gap and supported by a damper 7. A cone 8 is coupled to
the voice coil bobbin 6 at its central hole, and a center cap 9 is crowned. The opening peripheral
edge portion of the cone 8 is supported by the frame 11 via the edge 10. It is fixed to the frame
11 by means of an edge 10 luggage 12. During operation of such a speaker, the edge 10 and the
damper 7 must reliably maintain the vibration of the cone 8 and the voice coil 6. The eccentricity
of the cone 8 supported by the edge 10 affects the frequency response characteristic of the
speaker. Therefore, the mounting of the gasket 12 for securing the edge 10 requires accuracy.
Also, when such a speaker is attached to a mounting plate such as a pan plate, for example,
through a gasket, a predetermined thickness is given to the gasket in order to protect the edge of
the edge and the cone from contact with the net or the like. Conventionally, a speaker gasket is
manufactured by punching a plate of a predetermined thickness made of, for example, paper,
rubber, non-woven fabric, plastic or the like as a material into a desired size and shape using a
pick and a cutting blade. The size and shape of the gasket are, for example, 9 in the form of a
circle, an ellipse or the like, and 0.2% to 5% in thickness and 57% to 300% in diameter and 2% to
20% in width. In the speaker gasket made by the conventional manufacturing method, an
adhesive is applied to one side of the gasket using a paint brush in the process of manufacturing
the speaker, and thereafter the attachment is fixed to the edge and the frame. Since it is difficult
to obtain a uniform adhesive layer in the step of pasting the adhesive, the adhesive sticks out to
the edge in the subsequent step of sticking, causing deformation of the gasket during drying and
the like. Thus, the non-uniformity of the applied adhesive layer has the disadvantage of affecting
12-05-2019
1
the correct attachment of the gasket to the edge and frame, which degrades the performance of
the loudspeaker. Also, the application of the adhesive to the gasket by means of a paint brush has
the disadvantage that the gluing step takes time, as it corresponds to gaskets of various sizes and
shapes. The purpose of non-explosion and brightness is to provide an adhesive application device
which can uniformly apply an adhesive to the gasket surface and cope with gaskets of various
sizes and shapes by a simple operation and eliminate the above drawbacks. is there.
The adhesive application device according to the present invention comprises a drive mechanism
for rotating the glued roller and the processing roller rotatable in opposite directions with
respect to parallel juxtaposed axes, and an adjustment mechanism for maintaining and adjusting
the distance between the surfaces of both rollers. And a feeder for supplying adhesive to the
glued roller, and only on one side of the gasket plate which contacts the glued roller when a plate
member such as a gasket plate passes while being in contact with both rollers on its main surface
An adhesive is attached, and a groove extending in the direction perpendicular to the rotation
direction is provided on the surface of the pasting roller, and a groove extending in the rotation
direction is provided on the surface of the processing roller. It is compatible with various gaskets
and can always apply adhesive uniformly and quickly. The present invention will be described
below using one embodiment. FIG. 2 (6) shows that the grooves on the surface of the processing
roller 31? are provided in the same direction as the rotation direction 61. In the embodiment,
the outer diameter is 50% and the pitch is 1.5% at about 60 ░. A groove with a depth of 1% is
provided. Fig. 2 fBl is a drawing showing that the grooves on the surface of the pasted roller 31h
are provided in the direction perpendicular to the rotation direction, and in the embodiment, the
outer diameter is 5% and the flat knurl depth is about 0.3. % Grooves are provided. FIG. 3 is a
front view of the adhesive application device of the present invention. The configuration of such
an apparatus is as follows. The gear 28 and the two roller shafts are respectively rotated in such
a manner that the shafts of the processing roller 31cL and the glued roller 31b are reversely
rotated by connecting the drive shaft of the motor 33 fixed to the substrate 34 and the plurality
of gears 28 to each other. I'm stuck. In order to support the pasting roller 31b and the
processing roller 31? in parallel, the guide plate mounting plate 32 is placed on the substrate
34 with a predetermined interval, and the pasting roller 31bt is horizontally supported via the
bearing 30. A guide plate 26 is fixed on which is provided a vertically slidable bearing cover 25
which holds the processing roller 310 horizontally via a bearing 29. The bearing cover 25 is
fixed to the guide plate 26 and engaged by the guide stay 2 so as to prevent misalignment when
sliding, and to fix it to the substrate 14 through the adjustment screw 22 by the suspension bolt
21 and misrepresent. It is supported by the stay 23. By means of the adjusting screw 22 and the
pressing spring 27, the processing roller 31 (Z (d pasted with the pasting roller 31h can be kept
parallel to maintain a predetermined distance between both roller surfaces). The adhesive tank
20 is placed on the substrate 34 so that the adhesive 35 adjusted with, for example, 50% of
acrylic ester type and 50% of chlorophyllene type is in contact with the surface of the pasting
roller 31J.
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2
In the operation of this apparatus, both the rollers 31 cz and 31 b rotate and the adhesive 35
adheres to the glued roller 11 h, and the gasket plate passes between the two rollers 31 (Z, 3) J
at the same time as the adhesive 35 Apply uniformly on one side of The device according to the
invention makes it possible to apply the adhesive uniformly to one side of the gasket and to be
able to accommodate gaskets of different shape, size and thickness by being able to be easily
adjusted and exchanged between the rollers of such device. When comparing the required time
between the conventional process and the working process using the apparatus of the present
invention, for example, the gasket has a thickness of 0.45%, an outer diameter of 195%, an inner
diameter of 187z and a conventional paint brush In the case of coating by the method according
to the present invention, it takes 938 seconds for each sheet, but according to the apparatus of
the present invention, the number of steps is significantly reduced to 6 seconds per sheet, and
the reduction rate is 84%. As described above, according to the apparatus of the present
invention, it is clear that uniform application can always be performed on one side of various
gaskets and significant man-hour reduction can be achieved.
[0002]
Brief description of the drawings
[0003]
1 shows a cross-sectional view of a speaker in which a speaker gasket is used, and FIG. 2 (A)
shows an enlarged front view of a glued roller, and FIG. 2 [Bl shows an enlarged front view of a
processing roller And FIG. 3 shows a front view of the apparatus of the present invention.
Explanation of symbols of main parts 12 ииииии Gasket 20
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии status 24 ииииии Guide stay 25 ииииии
Bearing cover 26 ииииииии Guide plate 27 ииииии Spring 28 ииииииииииииииииииииии
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии
иииииииииииииииииииииииииии ? Substrate 35 ииииии Adhesive (one person)
12-05-2019
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