JPS5933290B2 - Molding method for hollow synthetic resin molded products - Google Patents
Molding method for hollow synthetic resin molded productsInfo
- Publication number
- JPS5933290B2 JPS5933290B2 JP54020781A JP2078179A JPS5933290B2 JP S5933290 B2 JPS5933290 B2 JP S5933290B2 JP 54020781 A JP54020781 A JP 54020781A JP 2078179 A JP2078179 A JP 2078179A JP S5933290 B2 JPS5933290 B2 JP S5933290B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- molding machine
- molded products
- resin molded
- mold
- 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
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/006—Joining parts moulded in separate cavities
- B29C45/0062—Joined by injection moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、中空合成樹脂成形品を得るための成形方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding method for obtaining a hollow synthetic resin molded article.
中空合成樹脂成形品を製造する方法として、従来、中空
成形機による方法と、射出成形品を接着剤等によつて接
着して得る方法とがあるが、前者の場合には、圧縮空気
を噴出するノズルの穴が成形品に残り、完全密封の製品
を得ることができない他、成形品の肉厚にも限界があり
、また、均一な肉厚の成形品を得ることが困難であり、
従つて、要求される肉厚の製品にすることが非常にむづ
かしいという欠点がある。Conventionally, there are two methods for manufacturing hollow synthetic resin molded products: one using a blow molding machine, and the other by gluing injection molded products with an adhesive. In the former case, compressed air is blown out. The hole of the nozzle remains in the molded product, making it impossible to obtain a completely sealed product.In addition, there is a limit to the wall thickness of the molded product, and it is difficult to obtain a molded product with uniform wall thickness.
Therefore, it has the disadvantage that it is very difficult to produce a product with the required wall thickness.
一方、後者の場合には、接着工程の自動化が困難であり
、量産化には不向きであると共に接着部分の強度が弱い
などの欠点がある。本発明は、従来公知の方法における
これらの欠点を解消し、自由な形状、肉厚で、しかも、
完全密封の中空合成樹脂成形品を量産することのできる
成形方法を得ることを、その目的とするものである。On the other hand, in the latter case, it is difficult to automate the bonding process, making it unsuitable for mass production, and has disadvantages such as the strength of the bonded portion being weak. The present invention eliminates these drawbacks of conventionally known methods, and allows for free-shape, thick-walled, and
The purpose of this invention is to obtain a molding method that can mass-produce completely sealed hollow synthetic resin molded products.
本発明方法は、この目的を達成するために、２種類の合
成樹脂成形品の一方を第一成形機により成形し、前記一
方の成形品を、下金型のキャビティ内に残した状態で、
ターンテーブルを回転して、第二成形機へ移動し、前記
第二成形機により第一成形機とは別個の一組の金型を上
記下金型上に載せて他方の成形品を成形し、次いで上記
２種類の合成樹脂成形品を、下金型上で組み合わせて、
再びターンテーブルを回転して第三成形機へ移動し、上
記合成樹脂成形品の接合部に設けた空間内に溶融樹脂を
注入して上記２種類の成形品を一体化することを特徴と
するものである。In order to achieve this objective, the method of the present invention involves molding one of two types of synthetic resin molded products using a first molding machine, leaving the one molded product in the cavity of the lower mold, and
The turntable is rotated and moved to a second molding machine, and the second molding machine places a set of molds separate from the first molding machine on the lower mold to mold the other molded product. Then, the above two types of synthetic resin molded products are combined on the lower mold,
The turntable is rotated again to move to a third molding machine, and molten resin is injected into the space provided at the joint of the synthetic resin molded product to integrate the two types of molded products. It is something.
以下、本発明方法をその実施の要領を示す添附図面の第
１及び２図に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of the present invention will be explained below with reference to FIGS. 1 and 2 of the accompanying drawings, which show the outline of its implementation.
まず、第１図は本発明方法の原理を示すものであるが、
本発明方法は、その第一ステップとして、本体１とふた
２とをそれぞれ別個の金型１０、１１によつて成形し（
第１図Ａ）、第二ステップとして、本体１を金型１０の
下金型１０−２のキャビティ内部においたまま、この金
型１０−２の上に、ふた２をキャビティ内においたまま
の金型１１の上金型１１−１を置き、本体１とふた２と
の突き合わせを行なう（同図Ｂ）。First, FIG. 1 shows the principle of the method of the present invention.
In the method of the present invention, as a first step, the main body 1 and the lid 2 are molded using separate molds 10 and 11, respectively.
Fig. 1A), as the second step, the main body 1 is placed inside the cavity of the lower mold 10-2 of the mold 10, and the lid 2 is placed on top of this mold 10-2 while leaving it inside the cavity. The upper mold 11-1 of the mold 11 is placed, and the main body 1 and the lid 2 are butted together (FIG. B).
次ぎに、第三ステップとして、突き合わせられた本体１
とふた２との突き合わせ部の空間３内に、溶融樹脂４を
注入し、本体１とふた２とを一体化する（同図Ｃ）。本
発明は、上記のような原理に基づくが、次ぎに、本発明
をそれを実施するための装置の１例に基づいて説明する
。第２図Ａに示すように、第一成形機１において、本体
１の成形を金型１０によつて行ない、成形された本体１
を下金型１０−２のキヤビテイ内に残した状態で、同図
Ｂに示すように下金型１０−２を第二成形機へ移動する
。Next, as a third step, the butted bodies 1
Molten resin 4 is injected into the space 3 at the abutting portion between the main body 1 and the lid 2, and the main body 1 and the lid 2 are integrated (FIG. C). The present invention is based on the principle as described above, and next, the present invention will be explained based on an example of a device for implementing the present invention. As shown in FIG. 2A, in the first molding machine 1, the main body 1 is molded using a mold 10, and the molded main body 1 is
With the mold remaining in the cavity of the lower mold 10-2, the lower mold 10-2 is moved to the second molding machine as shown in FIG.
第二成形機においては、下金型１０−２の上にコア−プ
レート１２を載せ、この上にふた用の上金型１１−１を
置き、コア−プレート１２をその下金型として上下の金
型１１−１、１２を閉じ、土金型１１−１とコア−プレ
ート１２とによつて形成されるキヤビテイ１３に樹脂を
注入してふた２を成形する。ふた２の成形後、コア−プ
レート１２を抜き出し、本体１の上にふた２を落下させ
て組み合わせ、本体１の下金型１０−２に本体１とふた
２とを保持させたまま第三成形機へ移動する。第三成形
機１こおいては、下金型１０−２の上は別の上金型１４
を載せ、両金型１０−２、１４が型閉した時に、上金型
１４と、本体１及びふた２とによつて形成する空間１５
内に溶融樹脂１６を注入して本体１とふた２との一体化
を行なう。In the second molding machine, the core plate 12 is placed on the lower mold 10-2, the upper mold 11-1 for the lid is placed on top of this, and the core plate 12 is used as the lower mold for the upper and lower molds. The molds 11-1 and 12 are closed, and a resin is injected into the cavity 13 formed by the earthen mold 11-1 and the core plate 12 to form the lid 2. After forming the lid 2, the core plate 12 is extracted, the lid 2 is dropped onto the main body 1, and the lid 2 is assembled, and a third molding is performed while the main body 1 and the lid 2 are held in the lower mold 10-2 of the main body 1. Move to the machine. In the third molding machine 1, another upper mold 14 is placed above the lower mold 10-2.
space 15 formed by the upper mold 14, the main body 1, and the lid 2 when the molds 10-2 and 14 are closed.
The main body 1 and the lid 2 are integrated by injecting molten resin 16 into the interior.
なお、第一、第二及び第三成形機１、、及びは、円形に
配置し、それぞれの固定盤１７の上に Ｃは、それらの
上をしゆう動して回転するターンテーブル１８を設置し
、ターンテーブル１８の間欠的な回転によつて３個の下
金型１０−２を順々に移動させるようにすると、好都合
である。このようにして、各成形機１，，での成形作業
は、同時に且つ自動的に進めることができるようにされ
る。以上のように、本発明の成形方法は、２種類の成形
品を別個に射出成形した後、それらを一体化して中空成
形品とするものであるので、成形品の肉厚や、成形品の
外側と内側との形状を自由に選択することができる他、
異色．異材質の組合わせから成る製品も容易に得ること
ができ、また、完全密封の中空成形品を得ることもでき
る。The first, second, and third molding machines 1 and C are arranged in a circle, and a turntable 18 is installed on each fixed plate 17, and C is a turntable that moves and rotates above them. However, it is convenient to move the three lower molds 10-2 one after another by intermittent rotation of the turntable 18. In this way, the molding operations in each molding machine 1 can proceed simultaneously and automatically. As described above, the molding method of the present invention separately injection molds two types of molded products and then integrates them into a hollow molded product. In addition to being able to freely select the shape of the outside and inside,
Unique. Products made of a combination of different materials can be easily obtained, and completely sealed hollow molded products can also be obtained.
更に、２種類の成形品の接合は、樹脂の融着によるもの
であるので、接合強度が大きく、美観も著しく向上する
。また、２種類の成形品の成形から接合までを連続して
、しかも、同時に進めることもできるので、成形作業の
自動化が容易であり従つて、量産並びに製作原価の低減
を容易に実現させることができる。Furthermore, since the two types of molded products are joined by resin fusion, the joint strength is high and the aesthetic appearance is significantly improved. In addition, since the process from molding to joining two types of molded products can be carried out continuously and simultaneously, it is easy to automate the molding work, which makes it easy to realize mass production and reduce manufacturing costs. can.
第１図は本発明方法の原理を示す説明図、第２図は本発
明方法を実施するための装置の１例を示す一部切欠正面
図である。
１・・・・・・本体、２・・・・・・ふた、３，１５・
・・・・・空間、１０−２，１１−２・・・・・・下金
型、１０−１，１１−１，１４・・・・・・上金型、１
２・・・・・・コア−プレート、１７・・・・・・固定
盤、１８・・・・・・ターンテーブル、Ｉ，，・・・・
・・成形機。FIG. 1 is an explanatory diagram showing the principle of the method of the present invention, and FIG. 2 is a partially cutaway front view showing an example of an apparatus for carrying out the method of the present invention. 1...Body, 2...Lid, 3,15.
...Space, 10-2, 11-2...Lower mold, 10-1, 11-1, 14...Upper mold, 1
2...Core plate, 17...Fixed plate, 18...Turntable, I...
··Molding machine.
Claims (1)
成形し、前記一方の成形品を、下金型のキャビティ内に
残した状態で、ターンテーブルを回転して、第二成形機
へ移動し、前記第二成形機により第一成形機とは別個の
一組の金型を上記下金型上に載せて他方の成形品を成形
し、次いで上記２種類の合成樹脂成形品を、中央に中空
部が形成されるように、下金型上で組み合わせて、再び
ターンテーブルを回転して第三成形機へ移動し、上記合
成樹脂成形品の接合部に設けた空間内に溶融樹脂を注入
して上記２種類の成形品を一体化することを特徴とする
中空合成樹脂成形品の成形方法。1 One of the two types of synthetic resin molded products is molded by the first molding machine, and with the one molded product remaining in the cavity of the lower mold, the turntable is rotated and transferred to the second molding machine. The second molding machine places a set of molds separate from the first molding machine on the lower mold to mold the other molded product, and then the two types of synthetic resin molded products are They are assembled on the lower mold so that a hollow part is formed in the center, and the turntable is rotated again to move to the third molding machine, and the molten resin is poured into the space created at the joint of the synthetic resin molded product. A method for molding a hollow synthetic resin molded product, characterized by integrating the two types of molded products described above by injecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54020781A JPS5933290B2 (en) | 1979-02-26 | 1979-02-26 | Molding method for hollow synthetic resin molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54020781A JPS5933290B2 (en) | 1979-02-26 | 1979-02-26 | Molding method for hollow synthetic resin molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55113541A JPS55113541A (en) | 1980-09-02 |
| JPS5933290B2 true JPS5933290B2 (en) | 1984-08-15 |
Family
ID=12036665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54020781A Expired JPS5933290B2 (en) | 1979-02-26 | 1979-02-26 | Molding method for hollow synthetic resin molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933290B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10211663B4 (en) * | 2002-03-15 | 2011-02-10 | Johnson Controls Interiors Gmbh & Co. Kg | Method for producing a molded part consisting of two segments integrally connected to one another, in particular for a vehicle interior, and also a molded part produced by this method |
| US8814259B2 (en) * | 2012-02-20 | 2014-08-26 | Inalfa Roof Systems Group B.V. | Frame for open roof construction |
| DE102014114455A1 (en) * | 2014-10-06 | 2016-04-07 | Huber Packaging Group Gmbh | Plastic box with lid ring and method of manufacture |
| JP6451603B2 (en) * | 2015-11-18 | 2019-01-16 | 株式会社デンソー | Manufacturing method for hollow products |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926068A (en) * | 1972-05-09 | 1974-03-08 |
-
1979
- 1979-02-26 JP JP54020781A patent/JPS5933290B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926068A (en) * | 1972-05-09 | 1974-03-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55113541A (en) | 1980-09-02 |
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