JPS5812718A - Manufacture of porous plate by casting - Google Patents
Manufacture of porous plate by castingInfo
- Publication number
- JPS5812718A JPS5812718A JP11103181A JP11103181A JPS5812718A JP S5812718 A JPS5812718 A JP S5812718A JP 11103181 A JP11103181 A JP 11103181A JP 11103181 A JP11103181 A JP 11103181A JP S5812718 A JPS5812718 A JP S5812718A
- Authority
- JP
- Japan
- Prior art keywords
- elastic sheet
- mold
- concavities
- lower mold
- casting material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【発明の詳細な説明】
本発明は、ラバースクリーン等の多孔板を製造するため
の注型式多孔板の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a cast perforated plate for manufacturing a perforated plate such as a rubber screen.
従来、注型成形による多孔板の製造に際しては、第７図
および第２図に示す如く多数の凸部ａを設けた下型すの
上に平坦面Ｃを設けた上型ｄを瞭いて素材ｅを注入する
方法がとられているが、凸部ｄの高さ精度、」―型ｄの
平坦面Ｃの面積度が充分でない場合、凸部ａと平坦面Ｃ
の間に生じる隙間に素材ｅが侵入することがある。従っ
て、第り図に示す如く得られる成形品ｆは多孔板の貫通
孔となるべき箇所にば９ｑが残り、後処理としてばり収
９加工、例えば成形品ｆの−」二面全体のパフ研摩を施
さねばならず、多大の手数と時開を要するとともに、成
形品表面の外観をも損なうという問題があった。Conventionally, when manufacturing a perforated plate by cast molding, as shown in FIGS. 7 and 2, an upper mold d having a flat surface C is placed on a lower mold having a large number of convex portions a, and the material is then molded. However, if the height accuracy of the convex part d and the area degree of the flat surface C of the mold d are not sufficient, the convex part a and the flat surface C
The material e may enter the gap created between the two. Therefore, the molded product f obtained as shown in FIG. There was a problem in that it required a great deal of effort and time, and also damaged the appearance of the surface of the molded product.
因に、ぼりなし多孔板の製造方法として、特公昭６２−
１０グアｇ′号公報にも開示されている如く、凸部を設
けたダイの上に生ゴムシート、加硫ゴムからなる剥離用
シート、加圧熱盤を順に重ねて加圧し、加硫後、＃Ｉ離
用シートを剥離することにより、ダイの凸部上面部分に
発生するば９を該剥離用シートにて成形品本体からはぎ
収る方法があるが、加圧成形時に生ゴムシートが多孔板
となるべく流動した１祭に、剥離用シートの伸びを引き
起こし、成形品に局部的なしわが生じることがあって品
質の低下を招き、また、剥離用シートを加圧成形の都度
収り替えねばならず、コスト高になる鍼みがあった。Incidentally, as a manufacturing method for perforated plates without stubs,
As disclosed in Publication No. 10 Gua G', a raw rubber sheet, a peeling sheet made of vulcanized rubber, and a pressure heating plate are stacked in this order on a die provided with a convex portion and pressurized, and after vulcanization, #I There is a method in which the release sheet is removed from the molded product body to remove the burr 9 generated on the upper surface of the convex part of the die, but the raw rubber sheet is removed from the porous plate during pressure molding. When the molded product flows as much as possible, it causes the release sheet to stretch, which can cause local wrinkles in the molded product, resulting in a decrease in quality.In addition, the release sheet must be replaced each time pressure molding is performed. First, there were acupuncture needles that were expensive.
不発８Ａ（ｌ−ｊ：、かかる点に鑑み、下型と」二型の
間に弾性シートを挾んで締伺は加圧した状態のもとで、
下型の凹部に注型用素材を注入し、前記加圧により弾性
体シートが下型の凸部上面に密着することを利用して該
凸部−り面部分でのぼりの発生をなくした注型式多孔板
の製造方法を提供し、前２従来の問題点を解消するもの
である。Unexploded 8A (l-j:, In view of this, the clamping is done under pressure by sandwiching an elastic sheet between the lower mold and the second mold.
A casting material is injected into the concave part of the lower mold, and the elastic sheet is brought into close contact with the upper surface of the convex part of the lower mold by the above-mentioned pressure, thereby eliminating the occurrence of molding on the surface of the convex part. The present invention provides a method for manufacturing a type perforated plate and solves the problems of the previous two conventional methods.
以下、本発明の構成を実施例につき図面に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on embodiments with reference to the drawings.
１は本発明にかかる製造方法で得られる格子状の多孔板
、２は注型成形装置である。注型成形装置２において、
６は固定盤、４は可動盤、５は固定盤３に収りイ」けた
下型、６は可動盤４に収り付けた上型、７は弾性体シー
トである。1 is a lattice-shaped perforated plate obtained by the manufacturing method according to the present invention, and 2 is a cast molding device. In the cast molding device 2,
6 is a fixed plate, 4 is a movable plate, 5 is a lower die that fits into the fixed plate 3, 6 is an upper die that is housed in the movable plate 4, and 7 is an elastic sheet.
下型５は、基部９ Ｋ ｌ ａｍ平方、高さｊ−の凸部
１ｏ＋３ｍｍ間隔で多数突設して凸部１０と凸部１０の
間に凹部１１が形成されており、凸部１０の高さに対す
る公差は±０．０．２間にカされている。上型６は下面
に平坦な面１２が設けられている。弾性体シー１・７ば
、ｔｔｉｉ−１熱性ゴムで成形されており、硬度はＨｓ
＝ＩＯ度で厚さ、ｊ’ ｍｍであジ、下型側の而にはシ
リコンの塗布による１ｌｌｆｆｆ、型処理が施されてい
る。The lower mold 5 has a base 9 Kl am square, a number of protrusions 1o + 3 mm in height j-, and recesses 11 are formed between the protrusions 10, and the height of the protrusions 10 is The tolerance for the thickness is between ±0.0.2. The upper mold 6 is provided with a flat surface 12 on the lower surface. Elastic body sheets 1 and 7 are made of ttii-1 thermal rubber, and the hardness is Hs.
=Thickness in IO degrees, j' in mm, and mold treatment is performed on the lower mold side by applying silicone.
多孔板１の製造に際しては、まず、弾性体シート７を下
型５と」−型６の間に挾み、両型内は１０ｍｍ ｔａｇ
以下に減圧し、固定盤３と可動盤４を締付けることによ
り、弾性体シート７を／Ｋｇ／ｅｒ＆程度の力で加圧し
、凸部１０を弾性体シー） ７ Ｖｃ若若干−込ませる
。この加圧状態の下で、液状のポリエステル系ボリクレ
タンからなる注型用素材１３を下型５の凹部１１に注入
し、１００°Ｃで７時間の加硫を行なう。しかる後、型
開きを行なって成形品、すなわち多孔板１を下型５から
離型する。When manufacturing the perforated plate 1, first, the elastic sheet 7 is sandwiched between the lower mold 5 and the mold 6, and the inside of both molds is 10 mm tag.
By reducing the pressure below and tightening the fixed platen 3 and the movable platen 4, the elastic sheet 7 is pressurized with a force of about /Kg/er&, and the convex part 10 is slightly pushed into the elastic sheet 7Vc. Under this pressurized state, a casting material 13 made of liquid polyester polycrethane is poured into the recess 11 of the lower mold 5 and vulcanized at 100° C. for 7 hours. Thereafter, the mold is opened and the molded product, that is, the perforated plate 1, is released from the lower mold 5.
上記実施例において、使用した弾性体シート７の７Ｋｇ
／ｃＪ負荷時における圧縮歪は２％であり、厚さＪ ｍ
ｍでは０θ乙ａｍ歪むことができ、これは下型５の凸部
１０の公差±θ０．２關を上回っている。In the above example, the elastic sheet 7 used weighed 7 kg.
The compressive strain at the time of loading /cJ is 2%, and the thickness J m
The distortion can be 0.theta.oam at m, which exceeds the tolerance of the convex portion 10 of the lower mold 5 by about .+-..theta.0.2.
従って、第５図および第４図に示す如く、下型５に前記
公差の範囲内にある若干高い凸部１０ａと若干低い凸部
１０ｂとが隣り合って形成されている場合でも、弾性体
シート７が変形して低い凸部１ｏｂの上面およびその周
縁に圧接されるため、ば９は生じ′ない。Therefore, as shown in FIGS. 5 and 4, even if the lower mold 5 has a slightly higher protrusion 10a and a slightly lower protrusion 10b adjacent to each other within the range of the above-mentioned tolerance, the elastic sheet 7 is deformed and pressed against the upper surface of the low convex portion 1ob and its periphery, so that the bulge 9 does not occur.
なお、注型用素材１６としては、前記液状ポリウレタン
以外、液状ゴム、液状エポキシ樹脂、液状シリコンゴム
なと他の液状樹脂を用いる場合もある。In addition, as the casting material 16, other than the liquid polyurethane, other liquid resins such as liquid rubber, liquid epoxy resin, and liquid silicone rubber may be used.
以上のように、本発明によれば、弾性体シートを用いる
ことにより、注型用素材を加硫成形する段階で完全に貫
通した貫通孔が形成されるため、後処理としてのぼり収
り加工が不要となって、工数が削減されるとともに、注
型用素材を注入する前の段階で弾性体シートの変形を完
了するため、加硫成形時には弾性体シートの変形による
しわの発生はなく、前記はり取りが不要なことも相俟っ
て得られる多孔板の外観が向上し、しかも、該弾性体シ
ートは成形の都度交換する必要がないため製造コストも
低くなるという優れた効果が得られる。As described above, according to the present invention, by using an elastic sheet, a completely penetrating through-hole is formed at the stage of vulcanization molding of the casting material, so that a post-processing process to fit the molding material is required. This eliminates the need for this, reducing man-hours, and since the deformation of the elastic sheet is completed before the casting material is injected, wrinkles do not occur due to deformation of the elastic sheet during vulcanization molding. The appearance of the perforated plate is improved due to the fact that no deburring is required, and the manufacturing cost is also reduced because the elastic sheet does not need to be replaced every time it is molded.
第１図乃至第４図は本発明の実施態様を例示し、第１図
は本発明で得られる多孔板の一部を示す斜視図、第２図
乃至第７図は注型成形装置による多孔板製造工程を段階
的に示す中央縦断面図、第５図および第２図は下型の凸
部に若干の高低がある場合における弾性体シート加圧前
後の状態を示す要部の拡大断面図、第７図および第２図
は従来の注型成形装置における素材注入前後の状態を示
す断面図、第２図は従来のばり付成形品の一部を示す斜
視図である。
１・・・・・多孔板、２・・・・・・注型成形装置、３
・・・・・・固定盤、４・・・・・・可動盤、５・・・
・・・下型、６・・・・・・上型、７・・ 弾性体シー
ト、９・・・・・・基部、１０．１０ａ。
１０ｂ・・・・・・凸部、１１・・・・凹部、１３・・
・・・・注型用素材
特許出願人 バンド−化学株式会社代 理 人
１） 中 消 −綜
輪
−９１−1 to 4 illustrate embodiments of the present invention, FIG. 1 is a perspective view showing a part of a perforated plate obtained by the present invention, and FIG. 2 to 7 are perforated plates formed by a cast molding device. The central vertical cross-sectional view showing the plate manufacturing process step by step, and Figures 5 and 2 are enlarged cross-sectional views of the main parts showing the state before and after pressing the elastic sheet when the convex part of the lower mold has some height. , FIG. 7, and FIG. 2 are sectional views showing states before and after material injection in a conventional cast molding apparatus, and FIG. 2 is a perspective view showing a part of a conventional molded product with burrs. 1... Porous plate, 2... Cast molding device, 3
...Fixed plate, 4...Movable plate, 5...
... lower mold, 6 ... upper mold, 7 ... elastic sheet, 9 ... base, 10.10a. 10b... Convex portion, 11... Concave portion, 13...
... Casting material patent applicant Band Kagaku Co., Ltd. Agent 1) Naka Eki - So
Ring-91-
Claims (2)
弾性体シートを挾んで締付は加圧し、該加圧状態のもと
て前記下型の凸部と凸部の間の四部に注型用素材を注入
することを特徴とする注型式多孔板の製造方法。(1) An elastic sheet is sandwiched between a lower mold having a number of convex portions on the base and a second mold, and pressure is applied to tighten the material. A method for manufacturing a cast perforated plate, characterized by injecting a casting material into four parts between the parts.
状エポキシ樹脂、液状シリコンゴム等の液状樹脂である
特許請求の範囲第１項に記載の注型式多孔板の製造方法
。(2) The method for producing a cast perforated plate according to claim 1, wherein the casting material is a liquid resin such as liquid polyurethane, liquid rubber, liquid epoxy resin, liquid silicone rubber, or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11103181A JPS5812718A (en) | 1981-07-15 | 1981-07-15 | Manufacture of porous plate by casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11103181A JPS5812718A (en) | 1981-07-15 | 1981-07-15 | Manufacture of porous plate by casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5812718A true JPS5812718A (en) | 1983-01-24 |
Family
ID=14550640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11103181A Pending JPS5812718A (en) | 1981-07-15 | 1981-07-15 | Manufacture of porous plate by casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812718A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04337549A (en) * | 1991-05-14 | 1992-11-25 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
| JP2005062886A (en) * | 2003-08-14 | 2005-03-10 | Fci | Ferrule assembly for optical fibers |
| US7819232B2 (en) | 2005-10-31 | 2010-10-26 | Yamaha Hatsudoki Kabushiki Kaisha | Clutch and vehicle having the same |
-
1981
- 1981-07-15 JP JP11103181A patent/JPS5812718A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04337549A (en) * | 1991-05-14 | 1992-11-25 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
| JP2005062886A (en) * | 2003-08-14 | 2005-03-10 | Fci | Ferrule assembly for optical fibers |
| US7819232B2 (en) | 2005-10-31 | 2010-10-26 | Yamaha Hatsudoki Kabushiki Kaisha | Clutch and vehicle having the same |
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