JPH0872082A - Manufacture for fiber reinforced plastic molded part - Google Patents
Manufacture for fiber reinforced plastic molded partInfo
- Publication number
- JPH0872082A JPH0872082A JP6210826A JP21082694A JPH0872082A JP H0872082 A JPH0872082 A JP H0872082A JP 6210826 A JP6210826 A JP 6210826A JP 21082694 A JP21082694 A JP 21082694A JP H0872082 A JPH0872082 A JP H0872082A
- Authority
- JP
- Japan
- Prior art keywords
- supply container
- reinforced plastic
- fluid material
- fiber
- molded product
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
- B29C2043/043—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds rotating on their own axis without linear displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
- B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、繊維強化プラスチック
成形品の製造方法に関し、更に詳しくは、繊維強化プラ
スチック成形品の主要部内面形状に対応する凸部を備え
たコア型の上方に、前記繊維強化プラスチック成形品の
主要部外面形状に対応する凹部を備えたキャビティー型
を、昇降による離間・接近が自在に設け、上面開口の供
給容器内に前記繊維強化プラスチック成形品の流動性材
料を予め収納しておき、前記キャビティー型を上昇離間
させた前記コア型の上方で、且つ、前記キャビティー型
の下方に、前記供給容器を移動させてその供給容器を反
転させることにより、前記流動性材料を前記コア型の凸
部上に打ちまけ供給した後、前記コア型に対して前記キ
ャビティー型を下降接近させて、前記流動性材料を前記
繊維強化プラスチック成形品に圧縮成形する繊維強化プ
ラスチック成形品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a fiber-reinforced plastic molded product, and more specifically, a method for producing a fiber-reinforced plastic molded product. A cavity mold with a recess corresponding to the outer surface shape of the main part of the fiber-reinforced plastic molded product is provided so that it can be separated and approached by raising and lowering, and the fluid material of the fiber-reinforced plastic molded product is placed in the supply container at the top opening. By storing the container in advance and moving the supply container above the core mold in which the cavity mold is lifted and separated and below the cavity mold and inverting the supply container, the flow After supplying the elastic material onto the convex portion of the core mold and moving the cavity mold downwardly toward the core mold, the fluid material is mixed with the fiber-reinforced plastic. Method for producing a fiber reinforced plastic molded article compressed into click molded article related.
【０００２】[0002]
【従来の技術】このような繊維強化プラスチック成形品
（以下、単に成形品という）の製造方法は、バルクモー
ルディングコンパウンド等、流動性を有する繊維強化プ
ラスチック成形用の材料（以下、流動性材料Ｍという）
を、前記成形品の主要部内面形状に対応する凸部を備え
たコア型上（更に詳しくは、前記コア型における凸部
上）へ供給した後、前記コア型と、前記成形品の主要部
外面形状に対応する凹部を備えたキャビティー型との間
で圧縮成形（図４、図５参照）することにより、人造大
理石製等、繊維強化プラスチック製の浴槽等の繊維強化
プラスチック成形品を製造するのに使用されている。と
ころで、上述の圧縮成形に先立つ、前記流動性材料Ｍの
コア型上への供給は、通常、次のような手順で行われて
いる。即ち、図１２（イ）に示すように上面開口の供給
容器３内に、前記流動性材料Ｍを予め収納しておき、前
記キャビティー型を上昇離間させた前記コア型２の上方
０．１〜１．０ｍで、且つ、前記キャビティー型の下方
に、前記供給容器３を移動させて、その供給容器３を図
１２（ロ）に示すように反転させて前記流動性材料Ｍを
自然落下させることにより、図１２（ハ）（ニ）に示す
ように前記流動性材料Ｍを前記コア型２の凸部２ａ上に
打ちまけ供給する、ということが行われている。そし
て、前記供給容器３としては、従来、前記流動性材料Ｍ
を収容する容器内空間の形状が単なる立方体や直方体に
形成されたものが使用されていた。また、前記流動性材
料Ｍの自然落下を容易にするため、通常は、前記供給容
器３と前記流動性材料Ｍとの間に、プラスチックシート
５を介在させるようにし、しかも、前記供給容器３の周
壁部内面に、若干の抜き勾配（５°〜２０°）を持たせ
てあった。2. Description of the Related Art A method for producing such a fiber-reinforced plastic molded article (hereinafter simply referred to as "molded article") is based on a material for molding a fiber-reinforced plastic having fluidity such as a bulk molding compound (hereinafter referred to as "fluid material M"). )
Is supplied onto a core mold having a convex portion corresponding to the inner surface shape of the main part of the molded product (more specifically, on the convex part of the core mold), and then the core mold and the main part of the molded product. Manufacture of fiber reinforced plastic moldings such as artificial marble tubs and fiber reinforced plastic tubs by compression molding (see FIGS. 4 and 5) with a cavity mold having a recess corresponding to the outer surface shape. Is used to By the way, the supply of the fluid material M onto the core mold prior to the above-mentioned compression molding is usually performed in the following procedure. That is, as shown in FIG. 12 (a), the fluid material M is stored in advance in the supply container 3 having an upper surface opening, and the cavity mold is lifted above the core mold 2 by 0.1. .About.1.0 m and below the cavity mold, the supply container 3 is moved, the supply container 3 is inverted as shown in FIG. 12B, and the fluid material M is naturally dropped. By doing so, as shown in FIGS. 12 (c) and 12 (d), the fluid material M is sprinkled and supplied onto the convex portion 2a of the core mold 2. And, as the supply container 3, conventionally, the fluid material M is used.
The shape of the space inside the container for accommodating was formed as a simple cube or rectangular parallelepiped. In order to facilitate the free fall of the fluid material M, a plastic sheet 5 is usually interposed between the supply container 3 and the fluid material M, and the supply container 3 is provided with a plastic sheet 5. The inner surface of the peripheral wall portion was provided with a slight draft (5 ° to 20 °).
【０００３】[0003]
【発明が解決しようとする課題】ところで、前記供給容
器３における前記流動性材料Ｍの収容空間の形状が、従
来は単なる立方体や直方体に形成されていたため、前記
収容空間に収納された流動性材料Ｍは、前記収容空間の
中央部でも周縁部でも対等に収納されて対等に落下しよ
うとする結果、前記流動性材料Ｍを前記コア型２上へ打
ちまけ供給する時点で、その打ちまけ供給される流動性
材料Ｍと、前記コア型２の凸部２ａ上との間に、図１２
（ハ）（ニ）に示すように、外周縁方向へ逃げきれない
エアーＡが巻き込まれるようになり、そのエアー巻き込
みに起因して、前記圧縮成形によって得られる成形品に
欠陥が発生する、という問題があった。本発明は、この
ような実情に着目してなされたものであり、上述した欠
陥発生の問題を回避し得る手段を提供することを目的と
している。By the way, since the shape of the accommodation space for the fluid material M in the supply container 3 has conventionally been formed as a cuboid or a rectangular parallelepiped, the fluid material accommodated in the accommodation space has been formed. M is stored evenly at both the central portion and the peripheral portion of the storage space, and as a result, the flowable material M is sprayed and supplied onto the core mold 2 as a result. 12 between the fluid material M and the convex portion 2a of the core mold 2.
(C) As shown in (D), the air A that cannot escape in the direction of the outer peripheral edge comes to be entrained, and a defect occurs in the molded product obtained by the compression molding due to the entrainment of the air. There was a problem. The present invention has been made by paying attention to such an actual situation, and an object thereof is to provide a means for avoiding the above-described problem of defect occurrence.
【０００４】[0004]
【課題を解決するための手段】本発明に係る繊維強化プ
ラスチック成形品の製造方法（以下、本発明方法とい
う）は、繊維強化プラスチック成形品の主要部内面形状
に対応する凸部を備えたコア型の上方に、前記繊維強化
プラスチック成形品の主要部外面形状に対応する凹部を
備えたキャビティー型を、昇降による離間・接近が自在
に設け、上面開口の供給容器内に前記繊維強化プラスチ
ック成形品の流動性材料を予め収納しておき、前記キャ
ビティー型を上昇離間させた前記コア型の上方で、且
つ、前記キャビティー型の下方に、前記供給容器を移動
させてその供給容器を反転させることにより、前記流動
性材料を前記コア型の凸部上に打ちまけ供給した後、前
記コア型に対して前記キャビティー型を下降接近させ
て、前記流動性材料を前記繊維強化プラスチック成形品
に圧縮成形する繊維強化プラスチック成形品の製造方法
であって、前記供給容器として、底内面の中央部が、そ
の中央部以外の内面よりも底側へ窪んでいるものを使用
する点を特徴としている。A method for producing a fiber-reinforced plastic molded product according to the present invention (hereinafter referred to as the method of the present invention) is a core provided with a convex portion corresponding to the inner surface shape of a main part of the fiber-reinforced plastic molded product. A cavity mold having a recess corresponding to the outer shape of the main part of the fiber-reinforced plastic molded product is provided above the mold so that the cavity mold can be separated and approached freely by raising and lowering, and the fiber-reinforced plastic molding is provided in a supply container with an upper opening. The fluid material of the product is stored in advance, and the supply container is moved over the core mold in which the cavity mold is lifted and separated and below the cavity mold, and the supply container is inverted. By supplying the fluid material onto the convex portion of the core die by supplying the fluid material, the cavity die is moved downwardly closer to the core die, and the fluid material is moved forward. A method for producing a fiber-reinforced plastic molded product by compression molding into a fiber-reinforced plastic molded product, wherein the supply container is one in which the central portion of the inner surface of the bottom is recessed toward the bottom side from the inner surface other than the central portion. It is characterized by doing.
【０００５】[0005]
【作用】上記特徴を備えた本発明方法によれば、前記供
給容器として、底内面の中央部が、その中央部以外の内
面よりも底側へ窪んでいるものを使用するので、前記流
動性材料を前記供給容器内に予め収納した時点で、前記
供給容器内の中央部で前記流動性材料が比較的多量に収
納される一方、前記供給容器内の周縁部で前記流動性材
料が比較的少量に収納された状態となる。従って、前記
流動性材料を前記供給容器内から前記コア型上へ打ちま
け供給する時点では、比較的多量に収納された前記中央
部の流動性材料が、比較的少量に収納された前記周縁部
の流動性材料よりも、優先的に自然落下するようにな
る。従って、前記流動性材料が前記コア型上へ打ちまけ
供給される時点で、先ず、前記中央部の流動性材料が前
記コア型上の中央部に先に接するように供給された後、
その供給時に巻き込まれようとするエアーを前記コア型
の外周縁方向へ押し出しつつ、前記周縁部の流動性材料
が前記コア型上に遅れて供給されるようになる。従っ
て、前記打ちまけ供給される流動性材料と前記コア型上
との間に、従来のようにエアーが巻き込まれるというこ
とが回避されるようになる。According to the method of the present invention having the above characteristics, since the supply container is one in which the central portion of the bottom inner surface is recessed toward the bottom side from the inner surface other than the central portion, the fluidity is improved. When the material is stored in the supply container in advance, a relatively large amount of the fluid material is stored in the central portion of the supply container, while the fluid material is relatively stored in the peripheral portion of the supply container. It will be stored in a small amount. Therefore, at the time when the fluid material is beaten and supplied from the inside of the supply container onto the core mold, the relatively large amount of the fluid material in the central portion is stored in the peripheral portion in a relatively small amount. The free-flowing material will preferentially fall spontaneously. Therefore, at the time when the fluid material is sprayed and supplied onto the core die, first, the fluid material at the central portion is supplied so as to come into contact with the central portion on the core die first,
While the air that is about to be caught during the supply is pushed out toward the outer peripheral edge of the core die, the fluid material at the peripheral edge is delayed and supplied onto the core die. Therefore, it is possible to prevent air from being trapped between the flowable material supplied by spraying and the core mold as in the conventional case.
【０００６】[0006]
【発明の効果】従って、従来生じていたエアー巻き込み
に起因する成形品の欠陥の発生を回避することができ、
本発明の目的が達成されるようになる。Therefore, it is possible to avoid the occurrence of defects in the molded product due to the air entrainment that has conventionally occurred.
The object of the present invention is achieved.
【０００７】尚、上記特徴を備えた本発明方法におい
て、前記供給容器の底内面中央部に、空気抜き孔を開口
形成しておくようにすれば、その空気抜き孔を通して、
前記供給容器の底内面中央部で且つ前記流動性材料の裏
側へ空気が侵入し、その空気侵入に基づいて、前記中央
部の流動性材料が前記コア型上の中央部に一層優先的に
供給されるようになり、もって、上述した本発明方法に
よる作用・効果が一層確実に生じるようになる。In the method of the present invention having the above characteristics, if an air vent hole is formed in the center of the inner surface of the bottom of the supply container, the air vent hole may be passed through the air vent hole.
Air intrudes into the center of the inner surface of the bottom of the supply container and to the back side of the fluid material, and based on the air invasion, the fluid material in the central portion is more preferentially supplied to the central portion on the core mold. As a result, the action and effect of the above-described method of the present invention can be more reliably produced.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１〜図５には、本発明方法の一実施例が示され
ている。尚、図面において従来例と同一の符号で表示し
た部分は同一又は相当の部分を示している。Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show one embodiment of the method of the present invention. In the drawings, the portions denoted by the same reference numerals as the conventional example indicate the same or corresponding portions.
【０００９】図１中における２は、全体形状がカップ状
を呈する繊維強化プラスチック成形品（本実施例では、
繊維強化プラスチック製（例えば、人造大理石製）の浴
槽、以下、単に成形品という）を製造するのに使用され
る金型の一方としてのコア型であり、そのコア型２は、
前記成形品の主要部内面形状に対応する凸部２ａを備え
ている。そのコア型２は、図４、図５に示すように、前
記成形品の主要部外面形状に対応する凹部１ａを備えた
キャビティー型１と上下対をなすように配置される。更
に詳しくは、前記コア型２の上方に、前記キャビティー
型１が、昇降による離間・接近が自在に配置される。そ
して、前記成形品の製造に際しては、図１に示すよう
に、上面が開口し、且つ、底内面の中央部がその中央部
以外の内面よりも底側へ窪んでいる（更に詳しくは、底
面が中央を頂点とする上側拡径の錐面に形成された）供
給容器３内に、前記成形品を形成するための流動性材料
Ｍ（具体的には、流動性を有するバルクモールディング
コンパウンド）を予め収納しておく。尚、後述する流動
性材料Ｍの自然落下を容易にするため、従来と同様、前
記供給容器３と前記流動性材料Ｍとの間に、プラスチッ
クシート５を介在させるようにし、しかも、前記供給容
器３の周壁部内面に、若干の抜き勾配を持たせてある。
そして、前記キャビティー型１を上昇離間させた前記コ
ア型２の上方０．１〜１．０ｍで、且つ、前記キャビテ
ィー型１の下方に、図１に示すように前記供給容器３を
移動させてその供給容器３を図２に示すように反転させ
ることにより、前記流動性材料Ｍを前記コア型２の凸部
２ａ上に図３に示すように打ちまけ供給した後、前記コ
ア型２に対して前記キャビティー型１を図４、図５に示
すように下降接近させて、前記流動性材料Ｍを前記繊維
強化プラスチック成形品に圧縮成形する。Reference numeral 2 in FIG. 1 denotes a fiber-reinforced plastic molded product (in this embodiment, a cup-shaped overall shape).
A core mold as one of molds used for manufacturing a bath made of fiber reinforced plastic (for example, artificial marble), hereinafter simply referred to as a molded product, and the core mold 2 is
It has a convex portion 2a corresponding to the inner surface shape of the main part of the molded product. As shown in FIG. 4 and FIG. 5, the core mold 2 is arranged so as to be vertically paired with the cavity mold 1 having the concave portion 1a corresponding to the outer shape of the main part of the molded product. More specifically, the cavity mold 1 is arranged above the core mold 2 so that the cavity mold 1 can be separated and approached by moving up and down. Then, in the production of the molded product, as shown in FIG. 1, the upper surface is opened, and the central portion of the inner surface of the bottom is recessed toward the bottom side more than the inner surface other than the central portion (more specifically, the bottom surface). A fluid material M (specifically, a bulk molding compound having fluidity) for forming the molded article is placed in a supply container 3 (which is formed on an upper diameter-increasing conical surface having a center at the apex). Store in advance. In order to facilitate the free fall of the fluid material M described later, the plastic sheet 5 is interposed between the supply container 3 and the fluid material M as in the conventional case, and the supply container is also provided. The inner surface of the peripheral wall portion 3 has a slight draft.
Then, as shown in FIG. 1, the supply container 3 is moved above the core mold 2 in which the cavity mold 1 is lifted and separated by 0.1 to 1.0 m and below the cavity mold 1. Then, the supply container 3 is inverted as shown in FIG. On the other hand, the cavity mold 1 is moved downwardly as shown in FIGS. 4 and 5, and the fluid material M is compression-molded into the fiber-reinforced plastic molded product.
【００１０】このような本発明方法によれば、供給容器
３として、底内面の中央部が、その中央部以外の内面よ
りも底側へ窪んでいるものを使用するので、流動性材料
Ｍを供給容器３内に予め収納した時点で、供給容器３内
の中央部で流動性材料Ｍが比較的多量に収納される一
方、供給容器３内の周縁部で流動性材料Ｍが比較的少量
に収納された状態となる。従って、流動性材料Ｍを供給
容器３内からコア型２上へ打ちまけ供給する時点では、
比較的多量に収納された前記中央部の流動性材料Ｍが、
比較的少量に収納された前記周縁部の流動性材料Ｍより
も、優先的に自然落下するようになる。従って、流動性
材料Ｍがコア型２上へ打ちまけ供給される時点で、先
ず、前記中央部の流動性材料Ｍがコア型２上の中央部に
先に接するように供給された後、その供給時に巻き込ま
れようとするエアーＡをコア型２の外周縁方向へ押し出
しつつ、前記周縁部の流動性材料Ｍがコア型２上に遅れ
て供給されるようになる。従って、前記打ちまけ供給さ
れる流動性材料Ｍとコア型２上との間に、従来のように
エアーＡが巻き込まれるのが回避されるようになる。According to such a method of the present invention, since the supply container 3 is one in which the central portion of the inner surface of the bottom is recessed toward the bottom side from the inner surface other than the central portion, the fluid material M is used. When the fluid material M is stored in the supply container 3 in advance, a relatively large amount of the fluid material M is stored in the central portion of the supply container 3, while the fluid material M is stored in a relatively small amount in the peripheral portion of the supply container 3. It will be stored. Therefore, at the time when the fluid material M is sprinkled from the inside of the supply container 3 onto the core mold 2 and supplied,
The fluid material M in the central portion, which is stored in a relatively large amount,
The fluid material M in the peripheral portion, which is stored in a relatively small amount, preferentially falls spontaneously. Therefore, when the fluid material M is sprayed and supplied onto the core die 2, first, the fluid material M at the central portion is first supplied so as to come into contact with the central portion on the core die 2 first, and then, While the air A, which is about to be caught during the supply, is pushed out toward the outer peripheral edge of the core mold 2, the fluid material M at the peripheral edge is supplied onto the core mold 2 with a delay. Therefore, it is possible to prevent the air A from being trapped between the fluid material M supplied by spraying and the core mold 2 as in the conventional case.
【００１１】次に、別実施例について説明する。前記供
給容器３の底内面中央部に、図６に示すように、空気抜
き孔４を開口形成しておく別実施例も考えられる。この
別実施例によれば、空気抜き孔４を通して、供給容器３
の底内面中央部で且つ流動性材料Ｍの裏側へ空気が侵入
し、その空気侵入に基づいて、前記中央部の流動性材料
Ｍがコア型２上の中央部に一層優先的に供給されるよう
になる。Next, another embodiment will be described. Another embodiment in which an air vent hole 4 is formed in the center of the inner surface of the bottom of the supply container 3 as shown in FIG. 6 is also conceivable. According to this alternative embodiment, the supply container 3
Air enters the center of the inner surface of the bottom of the core and on the back side of the fluid material M, and based on the invasion of the air, the fluid material M in the center is more preferentially supplied to the center of the core mold 2. Like
【００１２】また、上述の供給容器３の断面形状は、図
７〜図１１に示すように種々の変形例が考えられる。Various modified examples of the cross-sectional shape of the above-mentioned supply container 3 can be considered as shown in FIGS. 7 to 11.
【００１３】また、上述の実施例は、繊維強化プラスチ
ック製の浴槽を圧縮成形するものであったが、前記浴槽
以外の前記成形品（例えば、浄化槽や洗面ボール等）を
製造する場合においても、本発明を適用することができ
るのはいうまでもない。Further, in the above-described embodiment, the bath made of fiber reinforced plastic is compression-molded, but in the case of manufacturing the molded article other than the bath (for example, the septic tank or the wash ball), It goes without saying that the present invention can be applied.
【００１４】また、前記圧縮成形は、加熱を伴うもので
あっても、加熱を伴わないものであってもよい。The compression molding may or may not be accompanied by heating.
【００１５】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.
【図１】本発明方法を示す説明図FIG. 1 is an explanatory diagram showing a method of the present invention.
【図２】本発明方法を示す説明図FIG. 2 is an explanatory view showing the method of the present invention.
【図３】本発明方法を示す説明図FIG. 3 is an explanatory view showing the method of the present invention.
【図４】本発明方法を示す説明図FIG. 4 is an explanatory view showing the method of the present invention.
【図５】本発明方法を示す説明図FIG. 5 is an explanatory view showing the method of the present invention.
【図６】本発明方法の別実施例を示す説明図FIG. 6 is an explanatory view showing another embodiment of the method of the present invention.
【図７】本発明方法で使用される供給容器の別態様を示
す縦断面図FIG. 7 is a longitudinal sectional view showing another embodiment of the supply container used in the method of the present invention.
【図８】本発明方法で使用される供給容器の別態様を示
す縦断面図FIG. 8 is a vertical sectional view showing another embodiment of the supply container used in the method of the present invention.
【図９】本発明方法で使用される供給容器の別態様を示
す縦断面図FIG. 9 is a longitudinal sectional view showing another embodiment of the supply container used in the method of the present invention.
【図１０】本発明方法で使用される供給容器の別態様を
示す縦断面図FIG. 10 is a vertical sectional view showing another embodiment of the supply container used in the method of the present invention.
【図１１】本発明方法で使用される供給容器の別態様を
示す縦断面図FIG. 11 is a vertical sectional view showing another embodiment of the supply container used in the method of the present invention.
【図１２】従来方法を示す説明図FIG. 12 is an explanatory diagram showing a conventional method.
１ キャビティー型 １ａ 凹部 ２ コア型 ２ａ 凸部 ３ 供給容器 ４ 空気抜き孔 Ｍ 流動性材料 1 Cavity type 1a Recessed portion 2 Core type 2a Convex portion 3 Supply container 4 Air vent hole M Fluid material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 土居 栄二 滋賀県甲賀郡甲西町高松２番地の１ 株式 会社クボタ滋賀工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eiji Doi 1 at 2 Takamatsu, Kosai Town, Koga District, Shiga Prefecture Kubota Shiga Factory
Claims (2)
面形状に対応する凸部（２ａ）を備えたコア型（２）の
上方に、前記繊維強化プラスチック成形品の主要部外面
形状に対応する凹部（１ａ）を備えたキャビティー型
（１）を、昇降による離間・接近が自在に設け、上面開
口の供給容器（３）内に前記繊維強化プラスチック成形
品の流動性材料（Ｍ）を予め収納しておき、前記キャビ
ティー型（１）を上昇離間させた前記コア型（２）の上
方で、且つ、前記キャビティー型（１）の下方に、前記
供給容器（３）を移動させてその供給容器（３）を反転
させることにより、前記流動性材料（Ｍ）を前記コア型
（２）の凸部（２ａ）上に打ちまけ供給した後、前記コ
ア型（２）に対して前記キャビティー型（１）を下降接
近させて、前記流動性材料（Ｍ）を前記繊維強化プラス
チック成形品に圧縮成形する繊維強化プラスチック成形
品の製造方法であって、 前記供給容器（３）として、底内面の中央部が、その中
央部以外の内面よりも底側へ窪んでいるものを使用する
繊維強化プラスチック成形品の製造方法。1. A recess corresponding to the outer shape of the main part of the fiber-reinforced plastic molded product is provided above a core mold (2) having a convex part (2a) corresponding to the inner surface shape of the main part of the fiber-reinforced plastic molded product. A cavity mold (1) provided with (1a) is provided so that it can be moved up and down freely by moving up and down, and a fluid material (M) of the fiber-reinforced plastic molded product is stored in advance in a supply container (3) having an upper opening. In addition, by moving the supply container (3) above the core mold (2) in which the cavity mold (1) is lifted and separated, and below the cavity mold (1), After the supply container (3) is inverted, the fluid material (M) is sprinkled and supplied onto the convex portion (2a) of the core mold (2), and then the cavity is attached to the core mold (2). The tee type (1) is moved downward to bring the fluidity A method for producing a fiber-reinforced plastic molded product, comprising compression-molding a material (M) into the fiber-reinforced plastic molded product, wherein the supply container (3) has a center portion of the inner surface of the bottom that is closer to the inner surface than the center portion. A method for producing a fiber-reinforced plastic molded product using a product having a depression on the bottom side.
空気抜き孔（４）を開口形成しておく請求項１記載の繊
維強化プラスチック成形品の製造方法。2. The center of the inner surface of the bottom of the supply container (3),
The method for producing a fiber-reinforced plastic molded product according to claim 1, wherein the air vent hole (4) is formed by opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6210826A JP3027690B2 (en) | 1994-09-05 | 1994-09-05 | Manufacturing method of fiber-reinforced plastic molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6210826A JP3027690B2 (en) | 1994-09-05 | 1994-09-05 | Manufacturing method of fiber-reinforced plastic molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0872082A true JPH0872082A (en) | 1996-03-19 |
| JP3027690B2 JP3027690B2 (en) | 2000-04-04 |
Family
ID=16595763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6210826A Expired - Lifetime JP3027690B2 (en) | 1994-09-05 | 1994-09-05 | Manufacturing method of fiber-reinforced plastic molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3027690B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125815A (en) * | 2005-11-04 | 2007-05-24 | Toshiba Mach Co Ltd | Resin molding apparatus |
| JP2007168239A (en) * | 2005-12-21 | 2007-07-05 | Toshiba Mach Co Ltd | Resin molding machine |
| WO2008032841A1 (en) * | 2006-09-12 | 2008-03-20 | Toyo Seikan Kaisha, Ltd. | Polypropylene cup type container and molding method thereof |
| CN102143832A (en) * | 2008-09-19 | 2011-08-03 | 东洋制罐株式会社 | Compression molding method and compression molding apparatus |
| JP2020104908A (en) * | 2018-12-28 | 2020-07-09 | キョーラク株式会社 | Structure |
| US11964794B2 (en) | 2018-12-28 | 2024-04-23 | Kyoraku Co., Ltd. | Container and structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756880B (en) * | 2012-07-25 | 2015-03-04 | 江苏安普特防爆科技有限公司 | Separating and explosion proof material, as well as pressing mold and pressing method thereof |
-
1994
- 1994-09-05 JP JP6210826A patent/JP3027690B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125815A (en) * | 2005-11-04 | 2007-05-24 | Toshiba Mach Co Ltd | Resin molding apparatus |
| JP2007168239A (en) * | 2005-12-21 | 2007-07-05 | Toshiba Mach Co Ltd | Resin molding machine |
| WO2008032841A1 (en) * | 2006-09-12 | 2008-03-20 | Toyo Seikan Kaisha, Ltd. | Polypropylene cup type container and molding method thereof |
| US8236398B2 (en) | 2006-09-12 | 2012-08-07 | Toyo Seikan Kaisha, Ltd. | Cup-type polypropylene container and method of molding the same |
| CN102143832A (en) * | 2008-09-19 | 2011-08-03 | 东洋制罐株式会社 | Compression molding method and compression molding apparatus |
| JP2020104908A (en) * | 2018-12-28 | 2020-07-09 | キョーラク株式会社 | Structure |
| US11964794B2 (en) | 2018-12-28 | 2024-04-23 | Kyoraku Co., Ltd. | Container and structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3027690B2 (en) | 2000-04-04 |
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