JP2797220B2 - Method and apparatus for manufacturing synthetic resin molded product - Google Patents
Method and apparatus for manufacturing synthetic resin molded productInfo
- Publication number
- JP2797220B2 JP2797220B2 JP21520490A JP21520490A JP2797220B2 JP 2797220 B2 JP2797220 B2 JP 2797220B2 JP 21520490 A JP21520490 A JP 21520490A JP 21520490 A JP21520490 A JP 21520490A JP 2797220 B2 JP2797220 B2 JP 2797220B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- sheet
- forming
- die
- convex portion
- 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.)
- Expired - Lifetime
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 A.発明の目的 （１） 産業上の利用分野 本発明は合成樹脂成形品の製造方法、特に、成形用シ
ートを、凸部および凹部を備えた成形型の成形面に圧着
して成形品を製造する方法およびその方法の実施に用い
られる製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Field of the Invention The present invention relates to a method for producing a synthetic resin molded product, and more particularly, to a method for forming a molding sheet on a molding surface of a molding die having projections and depressions. TECHNICAL FIELD The present invention relates to a method for producing a molded product by press-fitting a molded product on a substrate and a production apparatus used for implementing the method.
（２） 従来の技術 従来、合成樹脂成形品の製造方法として、その成形品
の肉厚の不均一化を抑制すべく、成形面への圧着に先立
って成形用シートを引伸ばしながら脹らませる、といっ
た予張手段を採用する方法が知られている（例えば、特
公昭48−40071号公報参照）。(2) Conventional technology Conventionally, as a method of manufacturing a synthetic resin molded product, a molding sheet is expanded and expanded prior to pressure bonding to a molding surface in order to suppress uneven thickness of the molded product. (See, for example, Japanese Patent Publication No. 48-40071).
（３） 発明が解決しようとする課題 しかしながら、前記従来法においては、成形型の成形
面が単純な凸形をなすだけなので、前記のような予張手
段の採用によって成形品の肉厚の不均一化を抑制し得る
としても、成形面が凸部と凹部とを備えているように複
雑な様相を呈する場合には、前記のような予張手段では
満足すべき結果を得ることができない。(3) Problems to be Solved by the Invention However, in the above-mentioned conventional method, the molding surface of the molding die has only a simple convex shape. Even if uniformity can be suppressed, when the molding surface has a complicated appearance such as having a convex portion and a concave portion, a satisfactory result cannot be obtained by the above-described stretching means.
本発明は前記に鑑み、凸部と凹部とを備えた成形面を
持つ成形型を用いて成形用シートより合成樹脂成形品を
得るに当り、少なくとも２回の予張手段を採用すること
によって合成樹脂成形品の肉厚の不均一化を抑制し得る
ようにした前記製造方法および製造装置を提供すること
を目的とする。In view of the above, the present invention provides a synthetic resin molded product obtained by using a molding die having a molding surface having a convex portion and a concave portion by using at least two times of prestraining means in obtaining a synthetic resin molded product from a molding sheet. It is an object of the present invention to provide the above-described manufacturing method and manufacturing apparatus capable of suppressing uneven thickness of a resin molded product.
B.発明の構成 （１） 課題を解決するための手段 本発明に係る合成樹脂成形品の製造方法は、成形用シ
ートを凸部および凹部を備えた成形型の成形面に対向さ
せて配設する工程と、前記成形用シートを、それが前記
成形面に向けて膨出するように１次予張する工程と、前
記成形用シートと前記成形面との接近に伴い１次予張を
解除して、前記成形用シートを、それが前記凸部に被せ
られると共に前記凹部内に押込まれるように２次予張す
る工程と、前記成形用シートを前記成形面に圧着して中
間体を成形する工程と、前記中間体を硬化させる工程と
を順次行うことを特徴とする。B. Configuration of the Invention (1) Means for Solving the Problems In the method for producing a synthetic resin molded product according to the present invention, a molding sheet is disposed so as to face a molding surface of a molding die having a convex portion and a concave portion. Performing the first pre-stretching of the molding sheet so that it swells toward the molding surface; and releasing the primary pre-stretching as the molding sheet approaches the molding surface. Then, a step of secondary pre-stretching the molding sheet so that it is covered with the convex portion and pressed into the concave portion, and press-bonds the molding sheet to the molding surface to form an intermediate. The step of molding and the step of curing the intermediate are sequentially performed.
また本発明に係る合成樹脂成形品の製造方法は、成形
用シートを凸部および凹部を備えた成形型の成形面に対
向させて配設する工程と、前記成形用シートを、それが
前記成形面に向けて膨出するように１次予張する工程
と、１次予張を解除して、前記成形用シートを、それが
前記成形面の凸部に対向する凹部と前記成形面の凹部に
対向する凸部とよりなる断面波形に変形するように２次
予張する工程と、前記凹部を前記成形面の凸部に被せる
と共に前記凸部を前記成形面の凹部内に配設する工程
と、前記成形用シートを前記成形面に圧着して中間体を
成形する工程と、前記中間体を硬化させる工程とを順次
行うことを特徴とする。The method for producing a synthetic resin molded product according to the present invention includes a step of disposing a molding sheet so as to face a molding surface of a molding die having a convex portion and a concave portion; and forming the molding sheet by the molding process. A primary pre-stretching step so as to bulge toward a surface, and releasing the primary pre-stretch to form the molding sheet into a concave portion facing the convex portion of the molding surface and a concave portion of the molding surface. And a step of placing the concave portion on the convex portion of the molding surface and arranging the convex portion in the concave portion of the molding surface. And a step of pressing the molding sheet to the molding surface to form an intermediate, and a step of curing the intermediate.
さらに本発明に係る合成樹脂成形品の製造方法は、成
形用シートを凸部および凹部を備えた成形型の成形面に
対向させて配設する工程と、前記成形用シートを、それ
が前記成形面に向けて膨出するように１次予張する工程
と、前記成形用シートと前記成形面との接近に伴い１次
予張を解除して、前記成形用シートを、それが前記凸部
に被せられると共に前記凹部内に押込まれるように２次
予張する工程と、前記成形用シートを、それが前記凸部
から離間するように３次予張する工程と、その３次予張
解除後前記成形用シートを前記成形面に圧着して中間体
を成形する工程と、前記中間体を硬化させる工程とを順
次行うことを特徴とする。The method for producing a synthetic resin molded product according to the present invention further includes a step of disposing a molding sheet so as to face a molding surface of a molding die having a convex portion and a concave portion; and forming the molding sheet by the molding method. A first pre-stretching step so as to bulge toward a surface, and releasing the first pre-stretch with the approach of the forming sheet and the forming surface, thereby forming the forming sheet into the convex portion. And a third pre-stretching of the forming sheet so that it is separated from the protruding portion, and a third pre-stretching thereof. After the release, a step of pressing the molding sheet against the molding surface to form an intermediate body and a step of curing the intermediate body are sequentially performed.
本発明に係る合成樹脂成形品の製造装置は、成形用シ
ートの一面側に予張部材を、また他面側に成形型を、そ
れらが前記成形用シートから離間する非成形位置と、前
記成形用シートの縁部を挟着すべく、その成形用シート
に接近する成形位置とを占めるようにそれぞれ配設し、
前記成形型は凸部と凹部とを持つ成形面を有し、前記予
張部材は、その部材が成形位置に在り、また前記成形型
が非成形位置に在るとき、前記成形用シートを前記成形
面に向けて膨出させる可動プラグおよび圧空源の少なく
とも一方よりなる１次予張手段と、前記予張部材および
成形型が共に成形位置に在るとき、前記成形用シートを
前記成形面の凸部に被せると共に凹部内に押込む固定プ
ラグよりなる２次予張手段とを有し、２次予張後の前記
成形用シートを前記成形面に圧着する空気圧源を備えた
ことを特徴とする。The apparatus for producing a synthetic resin molded product according to the present invention comprises a pretensioning member on one surface of a molding sheet, a molding die on the other surface, a non-molding position where they are separated from the molding sheet, and In order to clamp the edge of the sheet for forming, it is arranged so as to occupy the forming position approaching the sheet for forming,
The molding die has a molding surface having a convex portion and a concave portion, and the pretensioning member is configured such that when the member is at a molding position and the molding die is at a non-molding position, the molding sheet is When the primary tensioning means comprising at least one of a movable plug and a compressed air source which bulges toward the molding surface, and the pretensioning member and the molding die are both located at the molding position, the molding sheet is moved to the molding surface. Secondary pre-stretching means comprising a fixed plug which is put on the convex portion and pressed into the concave portion, and further comprising an air pressure source which presses the forming sheet after the second pre-stretch onto the molding surface. I do.
また本発明に係る合成樹脂成形品の製造装置は、成形
用シートの一面側に予張部材を、また他面側に成形型
を、それらが前記成形用シートから離間する非成形位置
と、前記成形用シートの縁部を挟着すべく、その成形用
シートに接近する成形位置とを占めるようにそれぞれ配
設し、前記成形型は凸部と凹部とを持つ成形面を有し、
前記予張部材は、その部材が成形位置に在り、また前記
成形型が非成形位置に在るとき、前記成形用シートを前
記成形面に向けて膨出させる可動プラグおよび圧空源の
少なくとも一方よりなる１次予張手段と、前記成形用シ
ートを前記成形面の凸部に対向する凹部と前記成形面の
凹部に対向する凸部とよりなる断面波形に変形させる、
真空源および固定プラグよりなる２次予張手段とを有
し、２次予張後の前記成形用シートを前記成形面に圧着
する空気圧源を備えたことを特徴とする。The apparatus for manufacturing a synthetic resin molded product according to the present invention includes a pretensioning member on one side of the molding sheet, a molding die on the other side, and a non-molding position where they are separated from the molding sheet; In order to sandwich the edge of the molding sheet, each is disposed so as to occupy a molding position approaching the molding sheet, and the molding die has a molding surface having a convex portion and a concave portion,
The pretensioning member is provided by at least one of a movable plug and a compressed air source that swells the molding sheet toward the molding surface when the member is at a molding position and the molding die is at a non-molding position. Primary pretensioning means, and the forming sheet is deformed into a cross-sectional waveform including a concave portion facing the convex portion of the molding surface and a convex portion facing the concave portion of the molding surface.
A secondary pre-stretching means comprising a vacuum source and a fixed plug; and an air pressure source for pressing the molding sheet after the secondary pre-stretch onto the molding surface.
さらに本発明に係る合成樹脂成形品の製造装置は、成
形用シートの一面側に予張部材を、また他面側に成形型
を、それらが前記成形用シートから離間する非成形位置
と、前記成形用シートの縁部を挟着すべく、その成形用
シートに接近する成形位置とを占めるようにそれぞれ配
設し、前記成形型は凸部と凹部とを持つ成形面を有し、
前記予張部材は、その部材が成形位置に在り、また前記
成形型が非成形位置に在るとき、前記成形用シートを前
記成形面に向けて膨出させる可動プラグおよび圧空源の
少なくとも一方よりなる１次予張手段と、前記予張部材
および成形型が共に成形位置に在るとき、前記成形用シ
ートを前記成形面の凸部に被せると共に凹部内に押込む
固定プラグよりなる２次予張手段とを有し、前記成形型
に前記成形用シートを前記成形面の凸部から離間させる
圧空源よりなる３次予張手段を設け、３次予張後の前記
成形用シートを前記成形面に圧着する空気圧源を備えた
ことを特徴とする。Further, the apparatus for manufacturing a synthetic resin molded product according to the present invention includes a pretensioning member on one side of the molding sheet, a molding die on the other side, and a non-molding position where they are separated from the molding sheet; In order to sandwich the edge of the molding sheet, each is disposed so as to occupy a molding position approaching the molding sheet, and the molding die has a molding surface having a convex portion and a concave portion,
The pretensioning member is provided by at least one of a movable plug and a compressed air source that swells the molding sheet toward the molding surface when the member is at a molding position and the molding die is at a non-molding position. And a fixing plug for pressing the molding sheet over the convex portion of the molding surface and pressing the molding sheet into the concave portion when both the pre-stretching member and the molding die are at the molding position. Tertiary pretensioning means comprising a pressurized air source for separating the molding sheet from the convex portion of the molding surface, wherein the molding die is provided with tertiary pretensioning means. An air pressure source for crimping the surface is provided.
前記空気圧源は、真空源および圧空源の少なくとも一
方である。The air pressure source is at least one of a vacuum source and a compressed air source.
（２） 作用 前記製造方法によれば、２回または３回の予張手段を
採用することによって、肉厚の不均一化を極力抑制され
た合成樹脂成形品を製造することが可能である。(2) Operation According to the production method, it is possible to produce a synthetic resin molded product in which unevenness in thickness is suppressed as much as possible by employing two or three times of pretensioning means.
前記製造装置によれば、前記方法を確実に実施するこ
とが可能である。According to the manufacturing apparatus, the method can be reliably performed.
（３） 実施例 第１図は繊維強化合成樹脂成形品１の一例を示し、そ
の成形品１は箱形をなす本体２と、その本体２の開口部
外周縁全体に設けられたフランジ部３とを有する。本体
２の底壁４中央部には、先端側が開口部５よりも外方へ
突出する中空凸部６が備えられている。成形品１は積層
体であって、内側の繊維強化層７と、外側の表面層８と
より構成される。(3) Embodiment FIG. 1 shows an example of a fiber-reinforced synthetic resin molded article 1. The molded article 1 is a box-shaped main body 2, and a flange 3 provided on the entire outer peripheral edge of the opening of the main body 2. And At the center of the bottom wall 4 of the main body 2, there is provided a hollow projection 6 whose tip side projects outward beyond the opening 5. The molded article 1 is a laminate and includes an inner fiber reinforced layer 7 and an outer surface layer 8.
第２図は成形品１を得るために用いられる成形用シー
ト９を示し、その成形用シート９は、上部可撓性フィル
ム101と下部可撓性フィルム102との間に、上部可撓性フ
ィルム101側に位置する未硬化基材層11と、下部可撓性
フィルム102側に位置する合成樹脂液層12とを重ね合せ
て設けたものである。Figure 2 shows a molding sheet 9 to be used for obtaining a molded article 1, the molding sheet 9 between the upper flexible film 10 1 and the lower flexible film 10 2, the upper flexible the uncured base material layer 11 positioned sex film 10 1 side, those provided by superposing a synthetic resin solution layer 12 located below the flexible film 10 2.
上、下部可撓性フィルム101,102はビニロンより構成
され、それらは未硬化基材層11および合成樹脂液層12の
支持体として機能し、成形後は成形品１より剥離され
る。The upper and lower flexible films 10 1 and 10 2 are made of vinylon, function as supports for the uncured base material layer 11 and the synthetic resin liquid layer 12, and are separated from the molded article 1 after molding.
未硬化基材層11は強化用繊維集合物と、その集合物に
含浸された合成樹脂液とより構成される。強化用繊維と
してはガラス繊維が用いられ、また合成樹脂液としては
不飽和ポリエステル樹脂液が用いられる。The uncured base material layer 11 is composed of a reinforcing fiber aggregate and a synthetic resin liquid impregnated in the aggregate. Glass fiber is used as the reinforcing fiber, and unsaturated polyester resin liquid is used as the synthetic resin liquid.
合成樹脂液層12は、未硬化基材層11の硬化処理時に硬
化して成形品１の表面層８を形成するもので、不飽和ポ
リエステル樹脂を主成分とし、これに顔料、架橋剤、硬
化触媒等を配合して調製される。The synthetic resin liquid layer 12 cures during the curing treatment of the uncured base material layer 11 to form the surface layer 8 of the molded article 1. The synthetic resin liquid layer 12 contains an unsaturated polyester resin as a main component, a pigment, a crosslinking agent, It is prepared by blending a catalyst and the like.
次に成形用シート９の製造例について説明する。 Next, a production example of the molding sheet 9 will be described.
不飽和ポリエステル樹脂 (二本触媒化学工業社製、商品名エポラックＮ−325)1
00重量部 無水ケイ酸粉末 ２重量部 二酸化チタン顔料 10重量部 スチレン（架橋剤） 15重量部 をホモミキサに投入して混合し混合液を得た。次いで、
100重量部の混合液に、２重量部のMgO、１重量部のｔ−
ブチルペルベンゾエート（硬化触媒）を添加して、合成
樹脂液を調製した。Unsaturated polyester resin (Nippon Shokubai Chemical Co., Ltd., trade name EPORAC N-325) 1
00 parts by weight Silicic anhydride powder 2 parts by weight Titanium dioxide pigment 10 parts by weight Styrene (crosslinking agent) 15 parts by weight was charged into a homomixer and mixed to obtain a mixed solution. Then
2 parts by weight of MgO, 1 part by weight of t-
Butyl perbenzoate (curing catalyst) was added to prepare a synthetic resin solution.
この合成樹脂液を、ビニロンよりなる厚さ50μｍの下
部可撓性フィルム102上面に厚さ１〜2mmに塗布し、次い
で、塗布層に40℃、１日間の増粘処理を施して合成樹脂
液層12を形成した。The synthetic resin solution was applied to a thickness of 1~2mm on the lower flexible film 10 2 the upper surface of the thick 50μm consisting vinylon, then, 40 ° C., the synthetic resin is subjected to thickening processing of one day to the coating layer A liquid layer 12 was formed.
不飽和ポリエステル樹脂（日本触媒化学工業社製、商
品名エポラックＧ−105）100重量部に、ｔ−ブチルペル
ベンゾエート１重量部を添加した未硬化基材層11用合成
樹脂液を調製した。また３枚のガラス繊維布（日東紡社
製、商品名Ｃ−450A）を重ね合わせて強化用繊維集合物
を作製した。この重合物に前記合成樹脂液を含浸させた
ものを合成樹脂液層12の上面に積層して厚さ２〜3mmの
未硬化基材層11を形成し、次いでその層11の上面にビニ
ロンよりなる厚さ50μｍの上部可撓性フィルム101を重
ね合せ、その後積層物に脱泡処理を施して厚さ約4mmの
成形用シート９を得た。A synthetic resin liquid for the uncured base material layer 11 was prepared by adding 1 part by weight of t-butyl perbenzoate to 100 parts by weight of an unsaturated polyester resin (trade name: Epolac G-105, manufactured by Nippon Shokubai Chemical Industry Co., Ltd.). Further, three glass fiber cloths (trade name: C-450A, manufactured by Nitto Boshoku Co., Ltd.) were overlapped to produce a fiber assembly for reinforcement. The polymer was impregnated with the synthetic resin liquid and laminated on the upper surface of the synthetic resin liquid layer 12 to form an uncured base material layer 11 having a thickness of 2 to 3 mm. consisting thickness 50μm of the upper flexible film 10 1 superposition to obtain a molded sheet 9 having a thickness of about 4mm subjected to defoaming treatment to thereafter laminate.
第3a〜第3e図は成形品１の製造方法およびその方法に
使用される製造装置の一例を示す。3a to 3e show an example of a method of manufacturing the molded article 1 and a manufacturing apparatus used in the method.
第3a図において、相対向する支柱13の上下方向中間部
に成形用シート９の周縁部を把持するクランパ14が設け
られる。そのクランパ14は支柱13に固定された下部の固
定板15と、作動シリンダ16により昇降する上部の可動板
17とよりなる。In FIG. 3a, a clamper 14 for gripping a peripheral portion of the molding sheet 9 is provided at a vertically intermediate portion of the opposing columns 13. The clamper 14 has a lower fixed plate 15 fixed to the column 13 and an upper movable plate which is moved up and down by the working cylinder 16.
Consists of 17.
成形用シート９の一面側、図示例では成形用シート９
の上方に予張部材18が、また成形用シート９の他面側、
図示例では成形用シート９の下方に成形型19がそれぞれ
配設され、それら予張部材18と成形型19とは、成形用シ
ート９から離間する非成形位置と、成形用シート９の縁
部をクランパ14を介して挟着すべく、その成形用シート
９に接近する成形位置とを占めることができる。One side of the molding sheet 9, in the illustrated example, the molding sheet 9
A pretensioning member 18 above, and the other side of the molding sheet 9;
In the illustrated example, a molding die 19 is disposed below the molding sheet 9, and the pretensioning member 18 and the molding die 19 are separated from a non-molding position separated from the molding sheet 9 and an edge of the molding sheet 9. Can be occupied with the molding position approaching the molding sheet 9 in order to pinch it through the clamper 14.
成形型19の成形面20は、上向きに開口する凹部21と、
その凹部21の底面中央部に設けられて先端側が凹部21の
開口よりも上方へ突出する凸部22とを備えている。凹部
21により成形品１の本体２を成形し、また凸部22により
中空凸部６を形成する。フランジ部３はクランパ14によ
り成形される。凹部21底面および凸部22頂面に通気孔23
が開口し、それら通気孔23は真空源V1に接続される。成
形型19は作動シリンダ24によって昇降し、上昇後の成形
位置と、下降後の非成形位置との間を往復することがで
きる。The molding surface 20 of the molding die 19 has a concave portion 21 opening upward,
A convex portion 22 is provided at the center of the bottom surface of the concave portion 21 and has a front end side projecting upward from the opening of the concave portion 21. Recess
The main body 2 of the molded product 1 is molded by 21, and the hollow convex portion 6 is formed by the convex portion 22. The flange 3 is formed by a clamper 14. Vent holes 23 on the bottom of concave 21 and top of convex 22
There opened, they vents 23 are connected to a vacuum source V 1. The molding die 19 is moved up and down by the working cylinder 24, and can reciprocate between the raised molding position and the lowered non-molding position.
予張部材18は、下向きに開口する箱体25を有し、その
箱体25内に可動プラグ26と、その周囲に存する複数の固
定プラグ27とが配設される。可動プラグ26は作動シリン
ダ28により伸縮するようになっており、その下端面は成
形型19の凸部22頂面と対向する。各固定プラグ27の下端
面は凹部21底面と対向する。箱体25の天井面には通気孔
29が開口し、その通気孔29は圧空源P1に接続される。箱
体25は作動シリンダ30によって昇降し、上昇後の非成形
位置と下降後の成形位置との間を往復することができ
る。The pretensioning member 18 has a box 25 that opens downward. A movable plug 26 and a plurality of fixed plugs 27 around the movable plug 26 are disposed in the box 25. The movable plug 26 is extended and contracted by an operation cylinder 28, and the lower end surface thereof faces the top surface of the convex portion 22 of the molding die 19. The lower end surface of each fixing plug 27 faces the bottom surface of the concave portion 21. Ventilation holes on the ceiling of box 25
29 is opened, the vent 29 is connected to a compressed air source P 1. The box 25 is moved up and down by the working cylinder 30, and can reciprocate between a non-molding position after ascending and a molding position after descending.
可動プラグ26は、予張部材18が成形位置に在り、また
成形型19が非成形位置に在るとき、成形用シート９を成
形面20に向けて膨出させる機能を有し、１次予張手段に
該当する。The movable plug 26 has a function of causing the molding sheet 9 to bulge toward the molding surface 20 when the pretensioning member 18 is at the molding position and the molding die 19 is at the non-molding position. It corresponds to the means of extension.
また各固定プラグ27は、予張部材18および成形型19が
共に成形位置に在るとき、成形用シート９を成形面20の
凸部22に被せると共に凹部21内に押込む機能を有し、２
次予張手段に該当する。Each of the fixing plugs 27 has a function of covering the molding sheet 9 on the convex portion 22 of the molding surface 20 and pressing the molding sheet 9 into the concave portion 21 when both the pretensioning member 18 and the molding die 19 are at the molding position, 2
This corresponds to the next pre-expansion means.
さらに真空源V1および圧空源P1は、成形用シート９を
成形面20に圧着する空気圧源を構成する。Further, the vacuum source V 1 and the compressed air source P 1 constitute an air pressure source for pressing the molding sheet 9 to the molding surface 20.
成形品１の製造に当っては、次の各工程を順次実施す
る。In manufacturing the molded article 1, the following steps are sequentially performed.
（ i ） 第3a図に示すように、予張部材18を上昇さ
せ、また成形型19を下降させてそれらを非成形位置に保
つ。成形型19は略120℃に加熱されている。(I) As shown in FIG. 3a, the pretensioning member 18 is raised and the mold 19 is lowered to keep them in the non-molding position. Mold 19 is heated to approximately 120 ° C.
下部可撓性フィルム102を下側に位置させた成形用シ
ート９の周縁部を、クランパ14に把持させて、そのシー
ト９を成形面20上方に配設する。The periphery of the lower flexible film 10 2 the lower molding sheet 9 is positioned, by grasping the clamper 14, disposed the sheet 9 to the molding surface 20 upward.
（ii ） 第3b図に示すように、一対のヒータ31を成形
用シート９の上、下面にそれぞれ接近させて配設し、そ
の成形用シート９を60℃に加熱して軟化させた後各ヒー
タ31を成形用シート９の上、下方から排除する。(Ii) As shown in FIG. 3b, a pair of heaters 31 are arranged close to the upper and lower surfaces of the molding sheet 9 respectively, and after heating the molding sheet 9 to 60 ° C. to soften it, The heater 31 is removed from above and below the forming sheet 9.
（iii） 第3c図に示すように、予張部材18を下降させ
て成形位置に保つ。この成形位置では箱体25の下端面が
クランパ14の可動板17上面に密着してそれらが間がシー
ルされる。また可動プラグ26が伸長状態に在り、その可
動プラグ26により成形用シート９が成形面20に向けて膨
出させられる。これにより成形用シート９全体が略均一
に伸ばされ、したがって成形用シート９は１次予張され
る。(Iii) As shown in FIG. 3c, the pretensioning member 18 is lowered and kept at the molding position. In this forming position, the lower end surface of the box 25 is in close contact with the upper surface of the movable plate 17 of the clamper 14, and the space therebetween is sealed. Further, the movable plug 26 is in an extended state, and the molding sheet 9 is expanded toward the molding surface 20 by the movable plug 26. As a result, the entire forming sheet 9 is substantially uniformly stretched, and thus the forming sheet 9 is primarily pre-stretched.
（iv ） 第3d図に示すように、成形型19を上昇させて
成形位置に保つ。この成形位置では、成形型19の成形面
20周縁部がクランパ14の固定板15下面に密着してそれら
の間がシールされる。(Iv) As shown in FIG. 3d, the mold 19 is raised and kept at the molding position. In this molding position, the molding surface of the mold 19 is
The 20 peripheral edge is in close contact with the lower surface of the fixed plate 15 of the clamper 14, and the space therebetween is sealed.
また成形用シート９と成形面20との接近に伴い可動プ
ラグ26が凸部22頂面に当たらないように収縮して１次予
張が解除される。Further, as the molding sheet 9 and the molding surface 20 approach each other, the movable plug 26 contracts so as not to come into contact with the top surface of the projection 22, and the primary pretension is released.
成形型19の凸部22頂面が各固定プラグ27の下端面を通
過すると、成形用シート９が凸部22により押上げられ、
またその凸部22周囲では成形用シート９の押上げが各固
定プラグ27により阻止される。その結果、成形用シート
９は各固定プラグ27により凸部22に被せられると共に凹
部21内に押込まれることになり、これにより成形用シー
ト９は凸部22および凹部21に対応して略均一に伸ばさ
れ、したがって成形用シート９は２次予張される。When the top surface of the convex portion 22 of the molding die 19 passes through the lower end surface of each fixing plug 27, the molding sheet 9 is pushed up by the convex portion 22,
Further, around the protruding portion 22, the pushing up of the molding sheet 9 is prevented by each fixing plug 27. As a result, the molding sheet 9 is covered by the fixing plug 27 on the convex portion 22 and is pushed into the concave portion 21, so that the molding sheet 9 is substantially uniform in correspondence with the convex portion 22 and the concave portion 21. Therefore, the molding sheet 9 is secondarily stretched.
（ v ） 第3e図に示すように、圧空源P1および真空源V
1を共に作動させて、２次予張後の成形用シート９を成
形面20に圧着して中間体10を成形し、次いでその圧着状
態にて中間体10を加熱硬化させて成形品１を得る。(V) As shown in 3e view, air source P 1 and the vacuum source V
1 together is operated, and the molding sheet 9 after the secondary pretension crimped on the molding surface 20 by forming the intermediate 1 0, then molded articles Intermediate 1 0 cured by heating at its crimped state Get 1.
このように２回の予張手段を採用することによって、
肉厚の不均一化を極力抑制された成形品１を得ることが
可能である。By adopting two pre-stretching means in this way,
It is possible to obtain the molded article 1 in which unevenness of the wall thickness is suppressed as much as possible.
前記のように厚さ約4mmの成形用シート９を用いた成
形品１において、山形部1aの厚さは３〜4mmであり、ま
た谷形部1bの厚さは４〜5mmであって、肉厚の均一化が
図られていることが判る。In the molded article 1 using the molding sheet 9 having a thickness of about 4 mm as described above, the thickness of the chevron 1a is 3 to 4 mm, and the thickness of the trough 1b is 4 to 5 mm, It can be seen that the wall thickness is made uniform.
第４図は可動プラグ26の代りに圧空源P1からの加圧空
気によって成形用シート９を１次予張する他例を示し、
第3c図に対応する。Figure 4 shows another example of the primary pretension molding sheet 9 by the pressurized air from air source P 1 in place of the movable plug 26,
This corresponds to FIG. 3c.
このような手段を用いても前記同様の効果が得られ
る。Even if such a means is used, the same effect as described above can be obtained.
第5a〜第5f図は成形品１の製造方法およびその方法に
使用される製造装置の他例を示す。5a to 5f show another example of a method of manufacturing the molded article 1 and a manufacturing apparatus used in the method.
第5a図において、予張部材18の通気孔29は切換弁32を
介して真空源V2と圧空源P1とに選択的に接続されるよう
になっている。装置における他の構造は第3a図例と同じ
であるから同一構成部分には同一符号を付して詳細な説
明は省略する。In FIG. 5a, the vent holes 29 of the pretensioning member 18 is adapted to be selectively connected to a vacuum source V 2 and air source P 1 via the switching valve 32. Since the other structure of the device is the same as that of the example in FIG. 3a, the same components are denoted by the same reference numerals and detailed description is omitted.
成形品１の製造に当っては、次の各工程を順次実施す
る。In manufacturing the molded article 1, the following steps are sequentially performed.
（ i ） 第5a図に示すように、予張部材18を上昇さ
せ、また成形型19を下降させてそれらを非成形位置に保
つ。成形型19は略120℃に加熱されている。(I) As shown in FIG. 5a, the pretensioning member 18 is raised and the mold 19 is lowered to keep them in the non-molding position. Mold 19 is heated to approximately 120 ° C.
下部可撓性フィルム102を下側に位置させた成形用シ
ート９の周縁部を、クランパ14に把持させて、そのシー
ト９を成形面20上方に配設する。The periphery of the lower flexible film 10 2 the lower molding sheet 9 is positioned, by grasping the clamper 14, disposed the sheet 9 to the molding surface 20 upward.
（ii ） 第5b図に示すように、一対のヒータ31を成形
用シート９の上、下面にそれぞれ接近させて配設し、そ
の成形用シート９を60℃に加熱して軟化させた後各ヒー
タ31を成形用シート９の上、下方から排除する。(Ii) As shown in FIG. 5b, a pair of heaters 31 are arranged close to the upper and lower surfaces of the forming sheet 9 respectively, and after heating the forming sheet 9 to 60 ° C. to soften it, The heater 31 is removed from above and below the forming sheet 9.
（iii） 第5c図に示すように、予張部材18を下降させ
て成形位置に保つ。この成形位置では箱体25の下端面が
クランパ14の可動板17上面に密着してそれらの間がシー
ルされる。また可動プラグ26が伸長状態に在り、その可
動プラグ26により成形用シート９が成形面20に向けて膨
出させられる。これにより成形用シート９全体が略均一
に伸ばされ、したがって成形用シート９は１次予張され
る。(Iii) As shown in FIG. 5c, the pretensioning member 18 is lowered and kept at the molding position. In this molding position, the lower end surface of the box 25 is in close contact with the upper surface of the movable plate 17 of the clamper 14, and the space therebetween is sealed. Further, the movable plug 26 is in an extended state, and the molding sheet 9 is expanded toward the molding surface 20 by the movable plug 26. As a result, the entire forming sheet 9 is substantially uniformly stretched, and thus the forming sheet 9 is primarily pre-stretched.
（iv ） 第5d図に示すように、可動プラグ26を収縮さ
せて、その下端面を各固定プラグ27の下端面よりも上方
に保ち、１次予張を解除する。(Iv) As shown in FIG. 5d, the movable plug 26 is contracted, and its lower end surface is kept higher than the lower end surface of each fixed plug 27, and the primary pretension is released.
予張部材18側の真空源V2を作動させて切換弁32を介し
箱体25内を減圧する。これにより、相隣る両固定プラグ
27間において成形用シート９が上方へ膨出するので、そ
の成形用シート９は、成形面20の凸部22に対向する下向
き凹部（凹部）9aと、成形面20の凹部21に対向する下向
き凸部（凸部）9bとよりなる断面波形に変形するように
略均一に伸ばされ、したがって成形用シート９は２次予
張される。Pretensioning member 18 side by operating the vacuum source V 2 of depressurizing the inside through box body 25 to the switching valve 32. With this, adjacent fixed plugs
Since the molding sheet 9 bulges upward between the spaces 27, the molding sheet 9 has a downward concave portion (recess) 9 a facing the convex portion 22 of the molding surface 20 and a downward concave portion 9 a facing the concave portion 21 of the molding surface 20. The sheet 9 is substantially uniformly stretched so as to be deformed into a cross-sectional waveform formed by the projections (projections) 9b, and thus the molding sheet 9 is secondarily pretensioned.
（ v ） 第5e図に示すように、成形型19を上昇させて
成形位置に保つ。この成形位置では、成形型19の成形面
20周縁部がクランパ14の固定板15下面に密着してそれら
の間がシールされる。また成形用シート９の下向き凹部
9aが成形面20の凸部22に被せられると共に下向き凸部9b
が成形面20の凹部21に配設される。(V) As shown in FIG. 5e, the mold 19 is raised and kept at the molding position. In this molding position, the molding surface of the mold 19 is
The 20 peripheral edge is in close contact with the lower surface of the fixed plate 15 of the clamper 14, and the space therebetween is sealed. In addition, downward concave portions of the molding sheet 9
9a is put on the convex portion 22 of the molding surface 20 and the downward convex portion 9b
Are provided in the concave portion 21 of the molding surface 20.
（vi ） 第5f図に示すように予張部材18側の圧空源P1
を作動させて切換弁32を介し箱体25内に加圧空気を供給
し、また成形型19側の真空源V1を作動させて成形面20お
よび成形用シート９間を減圧し、これにより成形用シー
ト９を成形面20に圧着して中間体10を成形する。その圧
着状態にて中間体10を加熱硬化させて成形品１を得る。(Vi) As shown in FIG. 5f, the compressed air source P 1 on the pretensioning member 18 side
Supplying pressurized air to main body 25 via the switching valve 32 is actuated, and also a vacuum source V 1 of the mold 19 side is operated between the molding surface 20 and the molding sheet 9 and depressurized, thereby the molding sheet 9 crimped on the molding surface 20 for molding the intermediate 1 0. Obtain a molded article 1 with Intermediate 1 0 cured by heating at its crimped state.
前記のように厚さ約4mmの成形用シート９を用いた成
形品１において、山形部1aの厚さは3.5〜4mmであり、ま
た谷形部1bの厚さは４〜4.5mmであって、肉厚の均一化
が図られていることが判る。In the molded article 1 using the molding sheet 9 having a thickness of about 4 mm as described above, the thickness of the chevron 1a is 3.5 to 4 mm, and the thickness of the valley 1b is 4 to 4.5 mm. It can be seen that the thickness was made uniform.
第6a〜第6f図は成形品１の製造方法およびその方法に
使用される製造装置の他例を示す。6a to 6f show another example of a method of manufacturing the molded article 1 and a manufacturing apparatus used in the method.
第6a図において、成形型19の通気孔23は切換弁33を介
して真空源V1と圧空源P2とに選択的に接続されるように
なっている。装置における他の構造は第3a図例と同じで
あるから同一構成部分には同一符号を付して詳細な説明
は省略する。In Figure 6a, the vent holes 23 of the mold 19 is adapted to be selectively connected to a vacuum source V 1 and air source P 2 via the switching valve 33. Since the other structure of the device is the same as that of the example in FIG. 3a, the same components are denoted by the same reference numerals and detailed description is omitted.
成形品１の製造に当っては、次の各工程を順次実施す
る。In manufacturing the molded article 1, the following steps are sequentially performed.
（ i ） 第6a図に示すように、予張部材18を上昇さ
せ、また成形型19を下降させてそれらを非成形位置に保
つ。成形型19は略120℃に加熱されている。(I) As shown in FIG. 6a, raise the pretensioning member 18 and lower the mold 19 to keep them in the non-molding position. Mold 19 is heated to approximately 120 ° C.
下部可撓性フィルム102を下側に位置させた成形用シ
ート９の周縁部を、クランパ14に把持させて、そのシー
ト９を成形面20上方に配設する。The periphery of the lower flexible film 10 2 the lower molding sheet 9 is positioned, by grasping the clamper 14, disposed the sheet 9 to the molding surface 20 upward.
（ii ） 第6b図に示すように、一対のヒータ31を成形
用シート９の上、下面にそれぞれ接近させて配設し、そ
の成形用シート９を60℃に加熱して軟化させた後各ヒー
タ31を成形用シート９の上、下方から排除する。(Ii) As shown in FIG. 6b, a pair of heaters 31 are arranged close to the upper and lower surfaces of the forming sheet 9, respectively, and the forming sheet 9 is heated to 60 ° C. to soften it. The heater 31 is removed from above and below the forming sheet 9.
（iii） 第6c図に示すように、予張部材18を下降させ
て成形位置に保つ。この成形位置では箱体25の下端面が
クランパ14の可動板17上面に密着してそれらの間がシー
ルされる。また可動プラグ26が伸長状態に在り、その可
動プラグ26により成形用シート９が成形面20に向けて膨
出させられる。これにより成形用シート９全体が略均一
に伸ばされ、したがって成形用シート９は１次予張され
る。(Iii) As shown in FIG. 6c, the pretensioning member 18 is lowered and kept at the molding position. In this molding position, the lower end surface of the box 25 is in close contact with the upper surface of the movable plate 17 of the clamper 14, and the space therebetween is sealed. Further, the movable plug 26 is in an extended state, and the molding sheet 9 is expanded toward the molding surface 20 by the movable plug 26. As a result, the entire forming sheet 9 is substantially uniformly stretched, and thus the forming sheet 9 is primarily pre-stretched.
（iv ） 第6d図に示すように、成形型19を上昇させて
成形位置に保つ。この成形位置では、成形型19の成形面
20周縁部がクランパ14の固定板15下面に密着してそれら
の間がシールされる。(Iv) As shown in FIG. 6d, the mold 19 is raised and kept at the molding position. In this molding position, the molding surface of the mold 19 is
The 20 peripheral edge is in close contact with the lower surface of the fixed plate 15 of the clamper 14, and the space therebetween is sealed.
また成形用シート９と成形面20との接近に伴い可動プ
ラグ26が凸部22頂面に当たらないように収縮して１次予
張が解除される。Further, as the molding sheet 9 and the molding surface 20 approach each other, the movable plug 26 contracts so as not to come into contact with the top surface of the projection 22, and the primary pretension is released.
成形型19の凸部22頂面が各固定プラグ27の下端面を通
過すると、成形用シート９が凸部22により押上げられ、
またその凸部22周囲では成形用シート９の押上げが各固
定プラグ27により防止される。その結果、成形用シート
９は各固定プラグ27により凸部22に被せられると共に凹
部21内に押込まれることになり、これにより成形用シー
ト９は凸部22および凹部21に対応して略均一に伸ばさ
れ、したがって成形用シート９は２次予張される。When the top surface of the convex portion 22 of the molding die 19 passes through the lower end surface of each fixing plug 27, the molding sheet 9 is pushed up by the convex portion 22,
Further, the lifting of the molding sheet 9 is prevented by the respective fixing plugs 27 around the convex portion 22. As a result, the molding sheet 9 is covered by the fixing plug 27 on the convex portion 22 and is pushed into the concave portion 21, so that the molding sheet 9 is substantially uniform in correspondence with the convex portion 22 and the concave portion 21. Therefore, the molding sheet 9 is secondarily stretched.
（ v ） 第6e図に示すように、成形型19側の圧空源P2
を作動させて切換弁33を介し成形用シート９および成形
面20間に加圧空気を供給する。これにより成形用シート
９が成形面20の凸部22から離間するように略均一に伸ば
され、したがって成形用シート９は３次予張される。(V) As shown in FIG. 6e, the compressed air source P 2 on the mold 19 side
To supply pressurized air between the molding sheet 9 and the molding surface 20 via the switching valve 33. As a result, the molding sheet 9 is extended substantially uniformly so as to be separated from the projections 22 of the molding surface 20, so that the molding sheet 9 is tertiarily pre-stretched.
（vi ） 第6f図に示すように、予張部材18側の圧空源P
1を作動させて箱体25内に加圧空気を供給し、また成形
型19側の真空源V1を作動させて切換弁33を介し成形面20
および成形用シート９間を減圧し、これにより成形用シ
ート９を成形面20に圧着して中間体10を成形する。その
圧着状態にて中間体10を加熱硬化させて成形品１を得
る。(Vi) As shown in FIG. 6f, the compressed air source P on the pretensioning member 18 side
1 activates the pressurized air is supplied to the box body 25 and also forming surface 20 through the switching valve 33 by actuating the vacuum source V 1 of the mold 19 side
And between molding sheet 9 under reduced pressure, thereby forming the intermediate 1 0 Crimp the molding sheet 9 on the molding surface 20. Obtain a molded article 1 with Intermediate 1 0 cured by heating at its crimped state.
前記のように厚さ約4mmの成形用シート９を用いた成
形品１において、山形部1aの厚さは3.5〜4mmであり、ま
た谷形部1bの厚さは４〜4.5mmであって、肉厚の均一化
が図られていることが判る。In the molded article 1 using the molding sheet 9 having a thickness of about 4 mm as described above, the thickness of the chevron 1a is 3.5 to 4 mm, and the thickness of the valley 1b is 4 to 4.5 mm. It can be seen that the thickness was made uniform.
C.発明の効果 本発明製造方法によれば、成形面への圧着に先立って
成形用シートを２回または３回予張する、といった手段
を採用することによって、凸部および凹部を備えた成形
面より肉厚の不均一化を極力抑制された合成樹脂成形品
を得ることができる。C. Effects of the Invention According to the manufacturing method of the present invention, a molding sheet having a convex portion and a concave portion is adopted by adopting a means of pretensioning a molding sheet twice or three times prior to pressure bonding to a molding surface. It is possible to obtain a synthetic resin molded product in which unevenness in wall thickness is suppressed as much as possible.
本発明製造装置によれば、前記方法を確実に実施する
ことができる。According to the manufacturing apparatus of the present invention, the method can be reliably performed.
第１図は合成樹脂成形品の断面図、第２図は成形用シー
トの断面図、第3a〜第3e図は第１の成形品製造方法説明
図、第４図は第２の成形品製造方法における一工程の説
明図、第5a〜第5f図、第6a〜第6f図は第3,第４の成形品
製造方法説明図である。 P1,P2……圧空源、V1,V2……真空源、 １……合成樹脂成形品、10……中間体、９……成形用シ
ート、9a……下向き凹部（凹部）、9b……下向き凸部
（凸部）、101,102……上、下部可撓性フィルム、11…
…未硬化基材層、12……合成樹脂液層、18……予張部
材、19……成形型、20……成形面、21……凹部、22……
凸部、26……可動プラグ、27……固定プラグ1 is a cross-sectional view of a synthetic resin molded product, FIG. 2 is a cross-sectional view of a molding sheet, FIGS. 3a to 3e are explanatory diagrams of a first molded product manufacturing method, and FIG. FIGS. 5a to 5f and FIGS. 6a to 6f are explanatory views of one step in the method, and are explanatory views of the third and fourth molded article manufacturing methods. P 1, P 2 ...... air source, V 1, V 2 ...... vacuum source, 1 ...... synthetic resin molded product, 1 0 ...... intermediate, 9 ...... molding sheet, 9a ...... downward recess (recess) , 9b ... downward convex portion (convex portion), 10 1 , 10 2 ... upper, lower flexible film, 11 ...
... Uncured base material layer, 12 ... Synthetic resin liquid layer, 18 ... Prestressing member, 19 ... Mold, 20 ... Molded surface, 21 ... Recess, 22 ...
Convex part, 26 …… Movable plug, 27 …… Fixed plug
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿部 倶久 埼玉県和光市中央１丁目４番１号 株式 会社本田技術研究所内 (72)発明者 田中 広巳 埼玉県狭山市新狭山１丁目10番地１ ホ ンダエンジニアリング株式会社内 (72)発明者 上田 賢一 大阪府吹田市西御旅町５番８号 日本触 媒化学工業株式会社樹脂研究所内 (72)発明者 稲垣 裕治 大阪府吹田市西御旅町５番８号 日本触 媒化学工業株式会社樹脂研究所内 (72)発明者 跡部 大祐 大阪府吹田市西御旅町５番８号 日本触 媒化学工業株式会社樹脂研究所内 (56)参考文献 特開 昭61−12318（ＪＰ，Ａ) 特開 平２−162011（ＪＰ，Ａ) 特公 昭60−29332（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.6，ＤＢ名) B29C 51/04 - 51/14 B29C 51/18 - 51/42 B29L 9:00 B29K 105:06 - 105:14──────────────────────────────────────────────────続 き Continuing on the front page (72) Kudo Abe, 1-4-1 Chuo, Wako-shi, Saitama Prefecture Inside Honda R & D Co., Ltd. (72) Hiromi Tanaka 1-1-10-1, Shinsayama, Sayama-shi, Saitama Inside Honda Engineering Co., Ltd. (72) Kenichi Ueda, Inventor Kenichi 5-8 Nishiburicho, Suita-shi, Osaka Japan Resin Research Laboratory, Nippon Shokubai Chemical Industry Co., Ltd. No. 8 Inside the Resin Research Laboratories of Nippon Shokubai Chemical Industry Co., Ltd. (72) Inventor Daisuke Atobe 5-8 Nishimitabi-cho, Suita-shi, Osaka 12318 (JP, A) JP-A-2-162011 (JP, A) JP-B-60-29332 (JP, B2) (58) Fields investigated (Int. Cl. 6 , DB name) B29C 51/04 -51/14 B29C 51/18-51/42 B29L 9:00 B29K 105: 06-105: 14
Claims (6)
部（21）を備えた成形型（19）の成形面（20）に対向さ
せて配設する工程と、前記成形用シート（９）を、それ
が前記成形面（20）に向けて膨出するように１次予張す
る工程と、前記成形用シート（９）と前記成形面（20）
との接近に伴い１次予張を解除して、前記成形用シート
（９）を、それが前記凸部（22）に被せられると共に前
記凹部（21）内に押込まれるように２次予張する工程
と、前記成形用シート（９）を前記成形面（20）に圧着
して中間体（10）を成形する工程と、前記中間体（10）
を硬化させる工程とを順次行うことを特徴とする合成樹
脂成形品の製造方法。1. A step of disposing a forming sheet (9) so as to face a forming surface (20) of a forming die (19) having a convex portion (22) and a concave portion (21); (9) first pre-stretching the molding sheet (20) so that it bulges toward the molding surface (20); and forming the molding sheet (9) and the molding surface (20).
The primary pretensioning is released in accordance with the approach of the sheet, and the secondary pretension is released so that the molding sheet (9) is covered with the convex portion (22) and pushed into the concave portion (21). a step of Zhang, a step of forming the intermediate (1 0) by crimping said molding sheet (9) on the molding surface (20), said intermediate body (1 0)
And a step of curing the resin in order.
部（21）を備えた成形型（19）の成形面（20）に対向さ
せて配設する工程と、前記成形用シート（９）を、それ
が前記成形面（20）に向けて膨出するように１次予張す
る工程と、１次予張を解除して、前記成形用シート
（９）を、それが前記成形面（20）の凸部（22）に対向
する凹部（9a）と前記成形面（20）の凹部（21）に対向
する凸部（9b）とよりなる断面波形に変形するように２
次予張する工程と、前記凹部（9a）を前記成形面（20）
の凸部（22）に被せると共に前記凸部（9b）を前記成形
面（20）の凹部（21）内に配設する工程と、前記成形用
シート（９）を前記成形面（20）に圧着して中間体
（10）を成形する工程と、前記中間体（10）を硬化させ
る工程とを順次行うことを特徴とする合成樹脂成形品の
製造方法。2. A step of disposing a forming sheet (9) so as to face a forming surface (20) of a forming die (19) having a convex portion (22) and a concave portion (21); (9) a step of primary pre-stretching so that it bulges toward the molding surface (20), and releasing the primary pre-stretch to remove the molding sheet (9), The concave portion (9a) facing the convex portion (22) of the molding surface (20) and the convex portion (9b) facing the concave portion (21) of the molding surface (20) are deformed into a cross-sectional waveform.
Next pre-stretching step, and the concave portion (9a) is formed on the molding surface (20).
And disposing the convex portion (9b) in the concave portion (21) of the molding surface (20), and placing the molding sheet (9) on the molding surface (20). a step of forming the intermediate (1 0) by crimping, the intermediate (1 0) the method of producing a synthetic resin molded article, characterized in that sequentially carried out and curing the.
部（21）を備えた成形型（19）の成形面（20）に対向さ
せて配設する工程と、前記成形用シート（９）を、それ
が前記成形面（20）に向けて膨出するように１次予張す
る工程と、前記成形用シート（９）と前記成形面（20）
との接近に伴い１次予張を解除して、前記成形用シート
（９）を、それが前記凸部（22）に被せられると共に前
記凹部（21）内に押込まれるように２次予張する工程
と、前記成形用シート（９）を、それが前記凸部（22）
から離間するように３次予張する工程と、その３次予張
解除後前記成形用シート（９）を前記成形面（20）に圧
着して中間体（10）を成形する工程と、前記中間体
（10）を硬化させる工程とを順次行うことを特徴とする
合成樹脂成形品の製造方法。3. A step of disposing a forming sheet (9) so as to face a forming surface (20) of a forming die (19) having a convex portion (22) and a concave portion (21); (9) first pre-stretching the molding sheet (20) so that it bulges toward the molding surface (20); and forming the molding sheet (9) and the molding surface (20).
The primary pretensioning is released in accordance with the approach of the sheet, and the secondary pretension is released so that the molding sheet (9) is covered with the convex portion (22) and pushed into the concave portion (21). Tensioning the molding sheet (9) with the convex portion (22).
A step of cubic pretension so as to be separated from the step of forming the intermediate (1 0) by crimping the tertiary pretension released after the molding sheet (9) on the molding surface (20), method for producing a synthetic resin molded article, characterized in that sequentially carried out and curing the intermediate (1 0).
（18）を、また他面側に成形型（19）を、それらが前記
成形用シート（９）から離間する非成形位置と、前記成
形用シート（９）の縁部を挟着すべく、その成形用シー
ト（９）に接近する成形位置とを占めるようにそれぞれ
配設し、前記成形型（19）は凸部（22）と凹部（21）と
を持つ成形面（20）を有し、前記予張部材（18）は、そ
の部材（18）が成形位置に在り、また前記成形型（19）
が非成形位置に在るとき、前記成形用シート（９）を前
記成形面（20）に向けて膨出させる可動プラグ（26）お
よび圧空源（P1）の少なくとも一方よりなる１次予張手
段と、前記予張部材（18）および成形型（19）が共に成
形位置に在るとき、前記成形用シート（９）を前記成形
面（20）の凸部（22）に被せると共に凹部（21）内に押
込む固定プラグ（27）よりなる２次予張手段とを有し、
２次予張後の前記成形用シート（９）を前記成形面（2
0）に圧着する空気圧源を備えたことを特徴とする合成
樹脂成形品の製造装置。4. A molding member (18) on one side of a molding sheet (9), a molding die (19) on another side, and a non-molding position where they are separated from the molding sheet (9). And a molding position approaching the molding sheet (9) so as to sandwich the edge of the molding sheet (9), and the molding die (19) is provided with a projection ( A molding surface (20) having a recess (21) and a recess (21), wherein the pretensioning member (18) is located at the molding position and the molding die (19)
When but located in a non-molding position, said at least one more becomes primary pretension of the molding surface of the molding sheet (9) moveable plug to bulge toward the (20) (26) and air source (P 1) When the means, the pretensioning member (18) and the molding die (19) are both in the molding position, the molding sheet (9) is placed on the projection (22) of the molding surface (20) and the depression ( 21) secondary tensioning means comprising a fixed plug (27) to be pushed into the
After the second pre-stretching, the molding sheet (9) is placed on the molding surface (2).
An apparatus for producing a synthetic resin molded product, comprising: an air pressure source for press-fitting the molded article.
（18）を、また他面側に成形型（19）を、それらが前記
成形用シート（９）から離間する非成形位置と、前記成
形用シート（９）の縁部を挟着すべく、その成形用シー
ト（９）に接近する成形位置とを占めるようにそれぞれ
配設し、前記成形型（19）は凸部（22）と凹部（21）と
を持つ成形面（20）を有し、前記予張部材（18）は、そ
の部材（18）が成形位置に在り、また前記成形型（19）
が非成形位置に在るとき、前記成形用シート（９）を前
記成形面（20）に向けて膨出させる可動プラグ（26）お
よび圧空源（P1）の少なくとも一方よりなる１次予張手
段と、前記成形用シート（９）を前記成形面（20）の凸
部（22）に対向する凹部（9a）と前記成形面（20）の凹
部（21）に対向する凸部（9b）とよりなる断面波形に変
形させる、真空源（V2）および固定プラグ（27）よりな
る２次予張手段とを有し、２次予張後の前記成形用シー
ト（９）を前記成形面（20）に圧着する空気圧源を備え
たことを特徴とする合成樹脂成形品の製造装置。5. A non-molding position in which a pretensioning member (18) is provided on one side of the forming sheet (9) and a forming die (19) is provided on the other side thereof, and they are separated from the forming sheet (9). And a molding position approaching the molding sheet (9) so as to sandwich the edge of the molding sheet (9), and the molding die (19) is provided with a projection ( A molding surface (20) having a recess (21) and a recess (21), wherein the pretensioning member (18) is located at the molding position and the molding die (19)
When but located in a non-molding position, said at least one more becomes primary pretension of the molding surface of the molding sheet (9) moveable plug to bulge toward the (20) (26) and air source (P 1) Means, the forming sheet (9) is provided with a concave portion (9a) facing the convex portion (22) of the molding surface (20) and a convex portion (9b) facing the concave portion (21) of the molding surface (20). Secondary stretching means comprising a vacuum source (V 2 ) and a fixing plug (27), which deforms into a cross-sectional waveform consisting of: (20) An apparatus for manufacturing a synthetic resin molded product, comprising an air pressure source for crimping.
（18）を、また他面側に成形型（19）を、それらが前記
成形用シート（９）から離間する非成形位置と、前記成
形用シート（９）の縁部を挟着すべく、その成形用シー
ト（９）に接近する成形位置とを占めるようにそれぞれ
配設し、前記成形型（19）は凸部（22）と凹部（21）と
を持つ成形面（20）を有し、前記予張部材（18）は、そ
の部材（18）が成形位置に在り、また前記成形型（19）
が非成形位置に在るとき、前記成形用シート（９）を前
記成形面（20）に向けて膨出させる可動プラグ（26）お
よび圧空源（P1）の少なくとも一方よりなる１次予張手
段と、前記予張部材（18）および成形型（19）が共に成
形位置に在るとき、前記成形用シート（９）を前記成形
面（20）の凸部（22）に被せると共に凹部（21）内に押
込む固定プラグ（27）よりなる２次予張手段とを有し、
前記成形型（19）に前記成形用シート（９）を前記成形
面（20）の凸部（22）から離間させる圧空源（P2）より
なる３次予張手段を設け、３次予張後の前記成形用シー
ト（９）を前記成形面（20）に圧着する空気圧源を備え
たことを特徴とする合成樹脂成形品の製造装置。6. A non-molding position in which a pretensioning member (18) is provided on one side of the forming sheet (9), a forming die (19) is provided on the other side, and they are separated from the forming sheet (9). And a molding position approaching the molding sheet (9) so as to sandwich the edge of the molding sheet (9), and the molding die (19) is provided with a projection ( A molding surface (20) having a recess (21) and a recess (21), wherein the pretensioning member (18) is located at the molding position and the molding die (19)
When but located in a non-molding position, said at least one more becomes primary pretension of the molding surface of the molding sheet (9) moveable plug to bulge toward the (20) (26) and air source (P 1) When the means, the pretensioning member (18) and the molding die (19) are both in the molding position, the molding sheet (9) is placed on the projection (22) of the molding surface (20) and the depression ( 21) secondary tensioning means comprising a fixed plug (27) to be pushed into the
The molding die (19) is provided with tertiary tensioning means comprising a compressed air source (P 2 ) for separating the molding sheet (9) from the projection (22) of the molding surface (20). An apparatus for manufacturing a synthetic resin molded product, comprising: an air pressure source for pressing the molding sheet (9) to the molding surface (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21520490A JP2797220B2 (en) | 1990-08-15 | 1990-08-15 | Method and apparatus for manufacturing synthetic resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21520490A JP2797220B2 (en) | 1990-08-15 | 1990-08-15 | Method and apparatus for manufacturing synthetic resin molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0497828A JPH0497828A (en) | 1992-03-30 |
| JP2797220B2 true JP2797220B2 (en) | 1998-09-17 |
Family
ID=16668418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21520490A Expired - Lifetime JP2797220B2 (en) | 1990-08-15 | 1990-08-15 | Method and apparatus for manufacturing synthetic resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2797220B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002240099A (en) * | 2001-02-16 | 2002-08-28 | Asano Laboratories Co Ltd | Molding apparatus, molding method, sheet frame and press frame |
| JP4121874B2 (en) * | 2002-03-13 | 2008-07-23 | 日世株式会社 | Method for producing biodegradable molding and molding die used therefor |
| JP4547851B2 (en) * | 2002-05-28 | 2010-09-22 | 川上産業株式会社 | A plastic sheet having a large number of irregularities and a double wall sheet including the same |
-
1990
- 1990-08-15 JP JP21520490A patent/JP2797220B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0497828A (en) | 1992-03-30 |
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