JP2784371B2 - Manufacturing method of interconnector with eccentric type support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method of manufacturing a support with the interconnector of the eccentric type.

[0002]

2. Description of the Related Art To manufacture a conventional non-eccentric type interconnector with a support, it is necessary to (a) laminate a conductive and insulating elastomer sheet alternately in multiple layers.
Both the front surface of the S-type product layer board obtained a lock by slicing in two planes parallel to the stacking direction, and held between support member unvulcanized equal thickness composed of unvulcanized silicone rubber, support material the bonding of the vulcanization and S-type product layer plate or carried out simultaneously in the mold, a mold frame having a cavity (b) a predetermined thickness,
A predetermined thickness equal thickness of support member of two separately vulcanized molding, after applying the adhesive to the surface of this, clamp the both front <br/> surface of S-type product layer plate, these 3 Were glued together in another mold.

[0003]

[0004] However, in recent years, with support interconnector of eccentric type with different support material thickness (hereinafter, simply referred to as connector) but came to be used, as described above It is very difficult to manufacture such a connector by the conventional manufacturing methods (a) and (b). The reason is that in the method (a), since support material is unvulcanized, easily deformed unvulcanized support material before and after the bonding work and minute out after or S-type product layer plate thickness cause uneven, also when vulcanization in a closed mold as a result of flowing supported material by pressure and heat, to extend the center of the S-type product layer plate, after forming skew (ske
w: Conductive and insulating elastomer is screwed as a result of bias
To be fixed in place. Using such a connector
When the substrate is connected to a liquid crystal display device, etc.
Electrodes are not connected correctly and may be connected incorrectly to adjacent electrodes.
Awaken. ) Occur, also der from distortion such as defective core position <br/> location by waviness of S-type product layer plate there was a disadvantage occurs
You . In the method (b), when the thickness of the support material changes, a mold having a different cavity thickness is changed to the thickness each time.
Not only must each manufactured by correspondence, support
Skew, center position
It defective location occurs, replacement of the mold, setup takes time, due to poor work efficiency, because there is disadvantage increases the cost.

[0004]

The present invention SUMMARY OF] is intended to provide a method of manufacturing the interconnector to solve the above conventional disadvantages <br/>, which is different support material thickness and vulcanizing Table of long films alternately and spaced apart from each other in the long direction
Arranged on the surface, providing an adhesive layer on the surface of each support material , cutting only the film, a set of supports with different thicknesses
Face the adhesive layer of the material and then the two
The two types of Elastica of S-type product layer plate a plurality of conductive and insulating elastomer formed by laminating alternately during wear agent layer
Contact by sandwiching the Tomah to each of the adhesive layer, the thickness of
A connector base plate with different support materials is used . This connector base plate is degassed under reduced pressure in a decompression box, and then heated by a floating mold to laminate the support material and the S-type.
The gist of the present invention is to provide a method of manufacturing an eccentric type interconnector with a support, which comprises bonding a plate and then peeling only the film from a support material .

[0005] will be explained with reference to FIG. The present invention in the following. First
An apparatus for providing a support material on a long film will be described.
2 (a) is tightened press (in the lower die fixed, so-called down-pressing the upper die is raised and lowered) straight hydraulic type is a pattern diagram of the lift by the hydraulic cylinder 2 which is fixed to the upper portion of the movable plate 1 An intermediate plate 3 is provided, and a heating plate 4 is fixed below the intermediate plate 3.
Further, the upper mold 5 is attached thereunder. A fixed oblique cam 6 is provided above the intermediate plate 3.

On the other hand, a movable oblique cam 7 having the same inclination as the fixed oblique cam 6 is attached to a lower portion of the movable plate 1. Fixed and movable swash cam, the trapezoid body of the pair with one side inclined, outwardly pressed face to face the inclined faces so as to be parallel, by sliding to Rukoto the pressing surface, adjusting the total thickness since those, the movable swash cam 7 by Rukoto be moved horizontally by a servo motor 8, the distance between the movable plate 1 and the intermediate plate 3 can be set finely.

[0007] upper mold 5, as shown in the schematic diagram of FIG. 2 (b), (c) , the core 9 and the hot plate guide pin 10 is fixed by a fixing means not shown, the heat plate 4, the lower The unvulcanized rubber 13 is vulcanized and formed between the upper and lower dies by being guided by a hot plate guide portion 12 provided on a base plate 11 also serving as a die and descending. Adjusting the thickness of the support material is intends line by adjusting the position of the upper die 5, this adjustment, the intermediate plate 3 described above
It intends row by Rukoto to move the movable swash cam 7. When the unvulcanized rubber is filled with the upper and lower molds and the hot plate guide section 12 as shown in FIGS. In the case where only the upper die 5 and the base plate 11 are provided without the core 9, the hot plate guide pin 10, and the other hot plate guide portion 12, the overflow amount is estimated in advance. extra filling.

Next, a method of manufacturing the connector of the present invention using a molding apparatus capable of finely adjusting the thickness as described above will be described. As shown in FIG. 1A, thick support members 15 and thin support members 16 such as a vulcanized silicone elastomer are alternately separated from each other in the longitudinal direction.
Provided on the surface of a long film 14 such as polyester , an adhesive layer 17 is provided on the surface of each support material having a different thickness by screen printing or the like, and only the film 14 is cut to form a thick support material 15 with the film 14. , Thin support
The adhesive layers 17 on the contact member 16 are opposed to each other. thick
Ratio of thickness of thin support material 16 to support material 15
Is thin when the thick support material 15 is 1.5 mm, for example.
The support material 16 is 0.5 mm. The thickness of both support materials is 0.05-50 mm, preferably 0.3-10.
0 mm is appropriate. If the support material is too thin, handling tends to be difficult, and if it is too thick, the compression load when using the completed connector must be increased.
It is not preferable. Since the film 14 was long,
Since it can also serve as a carrier for port materials,
This is convenient for producing a large amount of support material .

When the support members 15 and 16 are made of silicone rubber or the like, an additional silicone adhesive is suitable for the adhesive layers 17 and 17 provided on the surfaces of the support members 15 and 16, however, in general, Condensed one-pack or two-pack RT
Use V, silicone adhesives varnish, an acrylic adhesive or the like
You. Roll coating to applying the adhesive, spray, although brushing, and the like, from the viewpoint of uniformity or accuracy screen printing suitable, its thickness is preferably set to 20 to 40 [mu] m.

Next , FIG. 1 in which the film 14 'is omitted .
As shown in (b), the support material 15 (or the support material 16 (not shown)) is turned over, and the contact between the support material 15 and the support material 16 (or the support material 15) placed thereunder is reversed.
The Chakuzaiso 17 are relatively oriented, the two adhesive layer 1
Between layers 7 and 17, a laminated block formed by laminating conductive and insulating elastomer sheets alternately in multiple layers is flat in the laminating direction.
The S-type product layer plate 18 obtained by slicing a row of two surfaces, front
The two types of elastomers are applied to each of the adhesive layers 17 and 17.
The three members and the film 14 are stacked so that they touch each other.
The overlapping connector original plate 19 is used. However, if this is immediately bonded, poor bonding will occur due to bubbles remaining on the bonding surface. Therefore, the bonding is performed within the decompression box 20 (omission of the exhaust means) shown in the conceptual diagram of FIG. Perform defoaming treatment.

Next, as a final processing step, 1
A set of different thicknesses between hot plates heated to 00-110 ° C
Are bonded to the S-type laminated plate 18 . For this purpose, a floating mold 21 as shown in FIG. 1D is used. This is composed of a lower heating plate 22 and an upper heating plate 23 suspended from a piston 23b of a cylinder 23a such as an air cylinder. The connector original plate 19 is placed on the lower heating plate 22 of the floating mold 21 and the upper heating plate 23 is heated. In this way, a connector with a completely bonded film is obtained. At this time, the support materials 15 and 16
Since the films 14, 14 'are in close contact with each other,
Despite the precured vulcanizing material, the film
14, 14 'prevent the support material from being unbalanced, and
Does not cause skew or poor center position
Bring benefits. Then , only the films 14 and 14 ' of the connector with a film are peeled off to obtain the interconnector of the present invention. Lamination of S-type product layer plate 18 as needed
If the two types of elastomers are cut into pieces parallel to a direction perpendicular to the interface , a rod-shaped connector shown in FIG. 1 (e) is obtained.

[0012]

Example: Silicone was pressed by a rubber sheet press molding machine.
Rubber SS-20 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.)
At a temperature of 150 ° C and a time of 1 minute and 30 secondsLongPolyester foil
When molded on film 14, no burrs and uneven thickness
Has high smoothness within 10 μm, vertical and horizontal 300 mm ×
Vulcanized 300mm, thickness 1.5mm and 0.5mm
Support materials 15, 16Separated from each otherGet alternately
I was able to. The operation of this rubber sheet press molding machine
This will be described in more detail with reference to FIG. 1) Silicone rubber raw material SS-20 on film 14
Is pushed by a specified amount (about 150 g) using an extrusion feeder (not shown).
After moving out of the upper mold 5 and just below, the servo motor 8
The movable movable cam 7 is set to the minimum thickness at which the thickness of the support material becomes zero.
From the position (the position where the movable oblique cam 7 has moved to the rightmost)
15m to the left to get 1.5mm thick support material
m, vulcanization moldingIWas. 2) Next, the specified amount of silicone rubber raw material SS-20 is used.
(Approximately 50 g) is supplied by an extrusion feeder, and the film 14 is
After moving just below the mold 5,thicknessObtain 0.5mm support material
5 from the minimum position where the thickness of the support material is zero.
mm, move the movable oblique cam 7 to the left and vulcanizeIWas. 3) Adjust the temperature of the hot plate 4 so that it always keeps 150 ℃You
You.

Next, FIGS. 1 (a), (b), (c),
This will be further described with reference to FIG. First, the support material 15,
16 on the surface of addition reaction type RTV KE1800TA.
TB (Shin-Etsu Chemical Co., Ltd., trade name), viscosity 900P
, A semi-automatic screen printer using a 150 # mesh screen, Minomat 600-W (Co., Ltd.)
An adhesive layer 17 was formed by continuously applying the entire surface to a constant thickness of 20 μm using a product of Mino Group (trade name).

Next, only the polyester film 14 supporting the support members 15 and 16 is cut, and the film 14 ' is cut.
(Not shown) with thick support material 15, with film
(Not shown) thin support material 16 and support material 1
5 is inverted by an inverting device, and the adhesive layers 17 and 17 'are relatively
I had you with direction. Then a thin support material 16 surface side of the adhesive layer 17 of the addition reaction type RTV of, S-type product layer plate (thickness 3
0 .mu.m, width 30cm, elastography conductive depth 30cm
An insulating elastomer sheet mer sheet the same shape,
From cubes comprising alternately stacked, placing the stacking direction to that of the thickness of 1mm obtained by cutting in a plane parallel) 18, in the thickness direction of the S-type laminate was allowed to reversed previously the support member 15 bonded through the adhesive layer 17, 17 ', and a connector original plate 19.

The connector original plate 19 is sealed and reduced.
In the pressure box 20, suction was continued for 70 seconds at a pressure of 0.1 Torr or less using a vacuum pump in order to remove air bubbles between the S-type laminated plate 18 and the pressure box 20. To add this case uniform load to the connector original plate 19 in a vacuum box, the load plate with an adjusted weight, a load with a 5mm foam sponge sheet is interposed thereunder, the S-type product layer plate and support member Adhered to it.

Next, the connector original plate 19 closely contacted with the above-mentioned connector original plate 19
Placed on the lower side of the heating plate 22 which also serves as a table, and set in advance pressurized polymerization amount, and is pressed against the upper side of the hot plate 23 heated to 110 ° C., and a S-type laminate and a pair of support material Contact
I wore it. Subsequently, only the polyester film 14 was removed to manufacture an interconnector.

[0017]

According to the present invention, the support material is moved by moving the movable oblique cam.
It is possible to set the thickness in units of μm, and it is easy to set the thickness in units of 10 μm and press even if the finished state of the mold and the incorporation are taken into consideration. The smoothness of the support member becomes within ± 25 [mu] m, Ru can produce quality on stable and uniform thickness of the support material. To change the thickness of the support material, it is only necessary to move the movable oblique cam by a predetermined amount, and it is not necessary to replace the mold. So you can
It is easy to manufacture a large number of products in small quantities, and the manufacturing cost of connectors can be reduced. In addition, application of adhesive to support material,
The supply of S-type laminate, bonded between the S-type laminate, the vacuum degassing in the vacuum volume <br/> box, is performed remains with the film the steps of thermoforming using a mold in a series of devices, support
Wood, skew failure due polarized elongation of S-type product layer plate, no air bubbles or poor adhesion to remain in the adhesive, excellent connector
It is possible to obtain.

[Brief description of the drawings]

1 (a), 1 (b), 1 (c), 1 (d) and 1 (e) are process explanatory views of an interconnector manufacturing method of the present invention.
(A) shows a support material and an adhesive on a long film.
(B) shows the state in which the layer is placed,
(C)
Means degassing in the decompression box,
(D) shows the state of bonding with a floating mold.
(E) shows the rod-shaped connector of the invention .

FIG. 2A is a schematic side view of a machine showing molding used in the present invention, and FIGS. 2B and 2C are schematic views illustrating the operation.
(B) before the operation of the machine, (c) after the operation
The state is shown .

[Explanation of symbols]

Reference Signs List 1 movable plate 14 long film 2 hydraulic cylinder 15 thick support material 3 intermediate plate 16 thin support material 4 hot plate 17 adhesive layer 5 upper die 18 S
Type product layer plate 6 fixed swash cam 19 connector plate precursor 7 movable swash cam 20 vacuum box 8 servomotor 21 floating mold 9 core 22 below the heating plate 10 heating plate guide pins 23 above the hot plate 11 the base plate (lower metal mold ) 23a cylinder 12 hot plate guide 23b piston 13 unvulcanized rubber

Claims (2)

(57) [Claims] 1. A different support material thickness was molded and vulcanized spaced from each other alternately and the long direction surface of the long film
Are arranged on the surface of each support material , an adhesive layer is provided on the surface of the support material, and only the film is cut, and a set of support materials having different thicknesses is provided.
Facing the said adhesive layer, then the two adhesive
Adhesive layer The two types of S-type product layer plate a plurality of conductive and insulating elastomer formed by laminating alternately between the elastography
Sandwiched by abutment mer to each of the adhesive layer, the thickness of the phase
And connector original plate with different support material, this girl
After defoaming the Nectar original plate under reduced pressure in a decompression box, it is heated by a floating mold to support material and S-type laminate
And then peeling only the film from the support material . 2. The method according to claim 1, wherein the support material is provided on a surface of a long film.
Compressed by the mold core on the floating mold
It is manufactured and its thickness is higher than that of the fixed tilt cam and the movable tilt cam.
Stroke of core due to movement of movable oblique cam
2. The eccentric type according to claim 1, wherein the eccentricity is determined by an amount of change in
Manufacturing method for interconnectors with support.