JPS646930B2 - - Google Patents
Info
- Publication number
- JPS646930B2 JPS646930B2 JP58162378A JP16237883A JPS646930B2 JP S646930 B2 JPS646930 B2 JP S646930B2 JP 58162378 A JP58162378 A JP 58162378A JP 16237883 A JP16237883 A JP 16237883A JP S646930 B2 JPS646930 B2 JP S646930B2
- Authority
- JP
- Japan
- Prior art keywords
- outer shell
- shell body
- molded product
- container
- molding
- 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
- 238000000034 method Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000012778 molding material Substances 0.000 claims description 5
- 238000010112 shell-mould casting Methods 0.000 claims 2
- 238000000465 moulding Methods 0.000 description 15
- 238000001746 injection moulding Methods 0.000 description 9
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- RRLHMJHRFMHVNM-BQVXCWBNSA-N [(2s,3r,6r)-6-[5-[5-hydroxy-3-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxypentoxy]-2-methyl-3,6-dihydro-2h-pyran-3-yl] acetate Chemical compound C1=C[C@@H](OC(C)=O)[C@H](C)O[C@H]1OCCCCCOC1=CC(O)=C2C(=O)C(C=3C=CC(O)=CC=3)=COC2=C1 RRLHMJHRFMHVNM-BQVXCWBNSA-N 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は容器型二重構造プラスチツク成形品、
例えば中空構造のヘルメツト、コンテナ、タンク
等の成形品の製造法、特に射出成形法を利用して
行う製造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a container-type double structure plastic molded product,
For example, the present invention relates to a method for manufacturing molded products such as hollow helmets, containers, tanks, etc., and particularly to a method for manufacturing molded products using injection molding.
射出成形によるプラスチツク成形品はブロー成
形による成形品より射出圧を高くでき、耐衝撃性
等の物性の優れた特性を有する。 Plastic molded products made by injection molding can have higher injection pressure than molded products made by blow molding, and have superior physical properties such as impact resistance.
従来、射出成形法を利用する容器型二重構造プ
ラスチツク成形品の製造は、目的成形品の内側シ
エル体と外側シエル体とを別個に成形し、それ等
内、外シエルを接合する方法に依存されている。
この従来法によると、内、外側シエル体が成形機
で別個に射出成形されるため、内側シエル体と外
側シエル体とで射出時の可塑化状態、射出圧其他
の成形成果に重大な影響を及ぼす射出条件が不同
となり、高い寸法精度が得られず、内、外側シエ
ル体の接合に不良を来たす等の不都合を伴う難点
があつた。 Conventionally, the production of container-type double-layered plastic molded products using injection molding has relied on a method of separately molding the inner and outer shells of the desired molded product and then joining the inner and outer shells. has been done.
According to this conventional method, since the inner and outer shell bodies are injection molded separately in a molding machine, the plasticization state of the inner shell body and the outer shell body during injection, injection pressure, and other molding results are significantly affected. However, the injection conditions are different, high dimensional accuracy cannot be obtained, and there are disadvantages such as poor bonding between the inner and outer shell bodies.
そこで本発明は上記先行技術による欠点を除去
し、射出成形法を利用して行う容器型二重構造プ
ラスチツク成形品の製造において、同一射出条件
で内、外側シエル体を成形し、相互の間に物性に
ばらつきのないかつ高い寸法精度を確保する内、
外側シエル体の収得を保証し、それ等の接合に不
良を来たさないようにしようというものである。 Therefore, the present invention eliminates the drawbacks of the above-mentioned prior art, and in manufacturing a container-type double-structure plastic molded product using the injection molding method, the inner and outer shell bodies are molded under the same injection conditions, and there is a space between them. While ensuring consistent physical properties and high dimensional accuracy,
The aim is to ensure the integrity of the outer shell body and to prevent defects in their joints.
本発明の容器型二重構造プラスチツク成形品の
製造法は、目的成形品の外側シエル体成形用金型
及び内側シエル体成形用金型に溶融した成形材料
をホツトランナーマニホールドを通じ同時に射出
して、外側シエル体及び内側シエル体を成形し、
得られた内、外側シエル体を接合して容器型二重
構造品とする容器型二重構造プラスチツク成形品
の製造法であつて、上記外側シエル体及び内側シ
エル体が相嵌合する接合用肩部を有していること
を特徴とし、内、外側シエル体の肩部の接合は接
着剤による等の適宜の手段により行えばよい。 The method for manufacturing a container-type double-structured plastic molded product of the present invention involves simultaneously injecting molten molding material into a mold for molding an outer shell body and a mold for molding an inner shell body of a target molded product through a hot runner manifold. Molding the outer shell body and the inner shell body,
A method for manufacturing a container-shaped double-structured plastic molded product in which the obtained inner and outer shell bodies are joined to form a container-shaped double-structured product, the method for joining the outer shell body and the inner shell body to fit each other. It is characterized by having a shoulder portion, and the shoulder portions of the inner and outer shell bodies may be joined by an appropriate means such as adhesive.
本発明に従えば、目的成形品の内、外側シエル
体がそれ等のための金型にホツトランナーマニホ
ールドを通じ溶融した成形材料を同時に射出して
成形されるので、当該内、外側シエル体は可塑化
状態、射出圧等の射出条件が同一下におかれ、相
互の間に物性にばらつきのないかつ収縮差のない
高い寸法精度を確保するものとして収得すること
が保証される。これに加えて本発明では内、外側
シエル体は相嵌合する接合用肩部を有しているの
で、前示同時成形になる内、外側シエル体を当該
肩部で接合することにより、内、外側シエル体の
接合を良好に行うことを保証する。 According to the present invention, the inner and outer shell bodies of the target molded product are molded by simultaneously injecting the molten molding material into the mold through the hot runner manifold, so that the inner and outer shell bodies are plasticized. It is guaranteed that the injection conditions such as molding state and injection pressure are kept the same, ensuring high dimensional accuracy with no variation in physical properties and no difference in shrinkage. In addition, in the present invention, since the inner and outer shell bodies have joining shoulders that fit together, the inner and outer shell bodies can be joined at the shoulders in the above-mentioned simultaneous molding. , to ensure good bonding of the outer shell body.
以下、本発明の実施例を図面について説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第１図に本発明法の実施に使用する射出成形機
における金型装置が示され、第１図で１が目的成
形品の外側シエル体成形用金型、２が内側シエル
体成形用金型、３がホツトランナーマニホールド
４を有する可動盤であり、該金型１，２及び可動
盤３は油圧ラム５によりそれ自体公知の方法に従
い型開き、型閉じするようにされている。６は射
出成形機のノズルである。第１図の金型１，２は
コンテナ、タンク等としての容器型二重構造成形
品のためのものである。 FIG. 1 shows a mold device in an injection molding machine used for carrying out the method of the present invention. In FIG. 1, 1 is a mold for molding the outer shell body of the target molded product, and 2 is a mold for molding the inner shell body. , 3 is a movable platen having a hot runner manifold 4, and the molds 1, 2 and the movable platen 3 are opened and closed by a hydraulic ram 5 in accordance with a method known per se. 6 is a nozzle of an injection molding machine. Molds 1 and 2 in FIG. 1 are for a container-type double-structure molded product such as a container or a tank.
金型１及び２を型閉じし、可動盤３のホツトラ
ンナーマニホールド４のノズルタツチ部６′に成
形機のノズル６をノズルタツチさせて、溶融した
成形材料をホツトランナーマニホールド４及びそ
れにおけるノズル１６，１６を通じ、金型１及び
２の成形キヤビテイ７，８に同時に射出して成形
する。 The molds 1 and 2 are closed, and the nozzle 6 of the molding machine is touched to the nozzle touch part 6' of the hot runner manifold 4 of the movable platen 3, and the molten molding material is poured into the hot runner manifold 4 and the nozzles 16, 16 therein. Through this process, the molding cavities 7 and 8 of the molds 1 and 2 are simultaneously injected and molded.
成形が終了すると、金型１，２を型開きして外
側シエル体９、内側シエル体１０〔第２図及び第
３図〕を取出す。該外側シエル体９及び内側シエ
ル体１０は、成形キヤビテイ７，８の然るべき設
計に従い、相嵌合する接合用肩部１１，１２を有
するものとして成形される。この接合用肩部１
１，１２には必要に応じ相掛合する凹、凸段部１
３，１４付きとしてもよい（第３図）。 When the molding is completed, the molds 1 and 2 are opened and the outer shell body 9 and the inner shell body 10 (FIGS. 2 and 3) are taken out. The outer shell 9 and the inner shell 10 are molded with mating joining shoulders 11, 12 according to the appropriate design of the molded cavities 7, 8. This joint shoulder part 1
1 and 12 have concave and convex stepped portions 1 that interlock with each other as necessary.
It may also be equipped with 3,14 (Fig. 3).
得られた外側シエル体９及び内側シエル体１０
を肩部１１，１２を相嵌合すると共に該肩部１
１，１２で接着剤による等の適当な手段で接合す
る。斯くして、目的とする容器型二重構造プラス
チツク成形品を得る。第１図の金型１，２による
成形品は第２図に示すもの、即ちコンテナ乃至は
タンクとしての成形品である。 Obtained outer shell body 9 and inner shell body 10
The shoulder portions 11 and 12 are fitted together, and the shoulder portion 1
1 and 12, they are joined by appropriate means such as adhesive. In this way, the desired container-shaped double-structure plastic molded product is obtained. The molded product formed by the molds 1 and 2 shown in FIG. 1 is that shown in FIG. 2, that is, a molded product as a container or a tank.
別の例として中空構造のヘルメツトである成形
品が第４図に示されている。当該成形品はそれに
即した成形キヤビテイを有する金型を用いる点を
除き、上述したと同じ方法で得ることができる。 Another example of a hollow helmet molded article is shown in FIG. The molded article can be obtained in the same manner as described above, except that a mold with a corresponding molding cavity is used.
可動盤３のホツトランナーマニホールド４には
適当な吸引減圧化手段、例えば油圧駆動によるス
ライドロツド１５を装備することが好ましい。こ
れによると、射出成形終了後、次の射出成形まで
の間中、上記吸引減圧手段によりホツトランナー
マニホールド４を減圧下におくことにより、ホツ
トランナーマニホールド４におけるノズル１６，
１６よりの溶融した成形材料の所謂はな垂れをな
くし得る。 The hot runner manifold 4 of the movable platen 3 is preferably equipped with a suitable suction and pressure reduction means, such as a hydraulically driven slide rod 15. According to this, after the end of injection molding, the hot runner manifold 4 is kept under reduced pressure by the suction decompression means until the next injection molding, so that the nozzles 16,
It is possible to eliminate so-called dripping of the molten molding material from 16.
目的成形品が容器の場合、望むならば蓋１７を
設けてもよい。この場合、蓋１７は容器本体１８
における外側シエル体９に、先端に掛合爪１９付
きのスナツプ掛合型の止め片２０をヒンジ部２２
で一体形成しておき、該止め片２０の掛合爪１９
を蓋１７の掛合段部２１にスナツプ掛合して、蓋
２０をロツクするようにできる。 If the intended molded product is a container, a lid 17 may be provided if desired. In this case, the lid 17 is the container body 18
A snap-engaging type stopper piece 20 with an engaging pawl 19 at the tip is attached to the outer shell body 9 at the hinge portion 22.
The engaging pawl 19 of the stopper piece 20 is integrally formed with
The lid 20 can be locked by snapping it onto the engaging stepped portion 21 of the lid 17.
第１図は本発明法の実施に使用する射出成形金
型装置の一例を示す縦断正面図、第２図は第１図
の金型により成形された外側シエル体及び内側シ
エル体の接合合体になる目的成形品の一部縦断正
面図、第３図は第２図と同様な成形品における
内、外側シエル体の接合の変更例を示す縦断面
図、第４図は成形品の別の例としての中空構造の
ヘルメツトの縦断正面図、第５図は容器としての
成形品を蓋付きとした場合の一部切欠き正面図で
ある。
１は外側シエル体成形用金型、２は内側シエル
体成形用金型、３はホツトランナーマニホールド
可動盤、４はホツトランナーマニホールド、５は
油圧ラム、６は成形機のノズル、６′はノズルタ
ツチ部、７，８は成形キヤビテイ、９は外側シエ
ル体、１０は内側シエル体、１１，１２は接合用
肩部、１３，１４は凹、凸段部、１５はスライド
ロツド、１６はホツトランナーマニホールドにお
けるノズル、１７は蓋、１９は爪、２０は止め
片、２１は掛合段部、２２はヒンジ部。
Fig. 1 is a longitudinal sectional front view showing an example of an injection molding mold device used for carrying out the method of the present invention, and Fig. 2 shows a joined assembly of an outer shell body and an inner shell body molded by the mold shown in Fig. 1. 3 is a longitudinal sectional view showing a modified example of the joining of the inner and outer shell bodies in a molded product similar to that in FIG. 2, and FIG. 4 is another example of the molded product. FIG. 5 is a partially cutaway front view of a molded product as a container with a lid. 1 is a mold for forming the outer shell body, 2 is a mold for forming the inner shell body, 3 is a movable hot runner manifold plate, 4 is a hot runner manifold, 5 is a hydraulic ram, 6 is a nozzle of the molding machine, 6' is a nozzle touch 7 and 8 are molded cavities, 9 is an outer shell body, 10 is an inner shell body, 11 and 12 are joint shoulders, 13 and 14 are concave and convex step parts, 15 is a slide rod, and 16 is a hot runner manifold. Nozzle, 17 is a lid, 19 is a claw, 20 is a stopper piece, 21 is an engaging stepped portion, and 22 is a hinge portion.
Claims (1)
側シエル体成形用金型に溶融した成形材料をホツ
トランナーマニホールドを通じ同時に射出して、
外側シエル体及び内側シエル体を成形し、得られ
た内、外側シエル体を接合して容器型二重構造品
とする容器型二重構造プラスチツク成形品の製造
法であつて、上記外側シエル体及び内側シエル体
が相嵌合する接合用肩部を有していることを特徴
とする容器型二重構造プラスチツク成形品の製造
法。1. Simultaneously inject the molten molding material into the outer shell molding mold and the inner shell molding mold of the target molded product through a hot runner manifold,
A method for manufacturing a container-type double-structured plastic molded product, in which an outer shell body and an inner shell body are molded, and the obtained inner and outer shell bodies are joined to form a container-type double-structured plastic molded product, the method comprising: and a method for producing a container-shaped double-structured plastic molded product, characterized in that the inner shell body has a joining shoulder portion that fits together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58162378A JPS6054840A (en) | 1983-09-02 | 1983-09-02 | Manufacture of double wall type plastic molded container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58162378A JPS6054840A (en) | 1983-09-02 | 1983-09-02 | Manufacture of double wall type plastic molded container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054840A JPS6054840A (en) | 1985-03-29 |
| JPS646930B2 true JPS646930B2 (en) | 1989-02-07 |
Family
ID=15753435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58162378A Granted JPS6054840A (en) | 1983-09-02 | 1983-09-02 | Manufacture of double wall type plastic molded container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054840A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH033812U (en) * | 1989-06-02 | 1991-01-16 | ||
| EP3644087A1 (en) | 2018-10-22 | 2020-04-29 | Toyoda Gosei Co., Ltd. | Onboard sensor cover |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3534253C1 (en) * | 1985-09-26 | 1987-04-16 | Stuebbe Gmbh Maschf | Injection molding machine for the production of plastic parts in the injection molding or reaction injection molding process |
| DE102017125709A1 (en) * | 2017-11-03 | 2019-05-09 | Pi-Design Ag | Injection mold and method for producing a double-walled drinking vessel, wherein the double-walled drinking vessel has an outer container and an inner container |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109641A (en) * | 1979-02-16 | 1980-08-23 | Oogaki Plast Kogyo Kk | Manufacturing double-wall container |
-
1983
- 1983-09-02 JP JP58162378A patent/JPS6054840A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH033812U (en) * | 1989-06-02 | 1991-01-16 | ||
| EP3644087A1 (en) | 2018-10-22 | 2020-04-29 | Toyoda Gosei Co., Ltd. | Onboard sensor cover |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6054840A (en) | 1985-03-29 |
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