JPH0139893B2 - - Google Patents
Info
- Publication number
- JPH0139893B2 JPH0139893B2 JP14087180A JP14087180A JPH0139893B2 JP H0139893 B2 JPH0139893 B2 JP H0139893B2 JP 14087180 A JP14087180 A JP 14087180A JP 14087180 A JP14087180 A JP 14087180A JP H0139893 B2 JPH0139893 B2 JP H0139893B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- hot runner
- present
- gates
- core
- 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
- 238000001746 injection moulding Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
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】
本発明は樹脂を成形した容器の金型に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mold for a container made of resin.
容器の金型としては従来は一般に第１図に示し
た方式のものが多い。固定金型１と移動金型２か
ら金型は構成され、両金型１および２の合せ面に
は成形品となるキヤビテイ３を形成し、固定金型
１のキヤビテイ３側には２つ以上のゲート４を有
するホツトランナ５が設けてある。かかる金型で
は対象となる容器の深さが深く肉厚が薄ければ薄
い程、射出される溶融プラスチツク材料の流動長
さと肉厚との比即ちＬ／ｔは大きくなる。従つて
射出に要する圧力は高くなりこれに対応した射出
成形機としての型締力も大きく必然的に射出成形
機は大形になる欠点を有していた。 Conventionally, most container molds are of the type shown in FIG. A mold is composed of a fixed mold 1 and a movable mold 2, and a cavity 3 that becomes a molded product is formed on the mating surfaces of both molds 1 and 2, and two or more cavities 3 are formed on the cavity 3 side of the fixed mold 1. A hot runner 5 having a gate 4 is provided. In such a mold, the deeper the depth and thinner the wall thickness of the target container, the greater the ratio of the flow length of the injected molten plastic material to the wall thickness, ie, L/t. Therefore, the pressure required for injection is high, and the corresponding mold clamping force of the injection molding machine is also large, which inevitably results in a large injection molding machine.
本発明はかかる欠点を除去したものでその目的
は、成形品に対し多数のゲートを設けることによ
りＬ／ｔを小さくして射出圧力を小さくしもつて
射出成形機を小形にするようにした可塑物成形容
器の金型を提供することにある。 The present invention eliminates such drawbacks, and its purpose is to reduce the L/t by providing a large number of gates on the molded product, thereby reducing the injection pressure and making the injection molding machine more compact. The purpose of the present invention is to provide molds for molding containers.
以下本発明の詳細について一実施例を示した第
２図により説明する。固定金型１１と移動金型１
２との合せ面にはキヤビテイ１３が形成され、固
定金型１１のコアー内部にホツトランナー１４を
設け、このホツトランナー１４から成形品の底部
および側壁部に対し多数のゲート１５（シヤツト
オフ機構を有するゲートを含む）を配置する。 The details of the present invention will be explained below with reference to FIG. 2 showing one embodiment. Fixed mold 11 and moving mold 1
A cavity 13 is formed on the mating surface with the mold 2, and a hot runner 14 is provided inside the core of the fixed mold 11. From this hot runner 14, a large number of gates 15 (having a shut-off mechanism (including gates).
本発明における金型は前述したように、コアー
内にホツトランナーを設けホツトランナーから多
数のゲートを成形品の底部と側壁部に配置したの
で、樹脂材料の流動長さと肉厚との比Ｌ／ｔは小
さくなつた。このため射出圧力は小さくなり型締
力も小さくなるので結局射出成形機も小さくなつ
た。さらに従来はホツトランナーをキヤビテイ底
部の外側に設けたが、本発明方式はコアーの内側
に設けたので金型の空間部分を有効に利用したの
で金型が小さくなるものである。 As described above, in the mold of the present invention, a hot runner is provided in the core and a large number of gates are arranged from the hot runner on the bottom and side walls of the molded product, so the ratio of the flow length of the resin material to the wall thickness is L/ t has become smaller. As a result, the injection pressure was reduced and the mold clamping force was also reduced, resulting in the injection molding machine becoming smaller. Further, conventionally, the hot runner was provided outside the bottom of the cavity, but in the method of the present invention, it is provided inside the core, so the space in the mold is effectively utilized, and the mold can be made smaller.
第１図は従来例の断面図、第２図は本発明の一
実施例の断面図である。
１１……固定金型、１２……移動金型、１４…
…ホツトランナー、１５……ゲート。
FIG. 1 is a sectional view of a conventional example, and FIG. 2 is a sectional view of an embodiment of the present invention. 11... fixed mold, 12... movable mold, 14...
...Hot Runner, 15...Gate.
Claims (1)
のコアー内部にホツトランナーを設け同ホツトラ
ンナーから成形品の底部および側壁部に対し多数
のゲートを配置した可塑物成形容器の金型。1. A mold for a plastic container with a large depth, in which a hot runner is provided inside the core of a fixed mold, and a large number of gates are arranged from the hot runner to the bottom and side walls of the molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14087180A JPS5764530A (en) | 1980-10-08 | 1980-10-08 | Metal mold for plastic material molded vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14087180A JPS5764530A (en) | 1980-10-08 | 1980-10-08 | Metal mold for plastic material molded vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5764530A JPS5764530A (en) | 1982-04-19 |
| JPH0139893B2 true JPH0139893B2 (en) | 1989-08-24 |
Family
ID=15278686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14087180A Granted JPS5764530A (en) | 1980-10-08 | 1980-10-08 | Metal mold for plastic material molded vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5764530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190358752A1 (en) * | 2018-05-25 | 2019-11-28 | Senju Metal Industry Co., Ltd. | Solder Ball, Solder Joint, and Joining Method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728474A (en) * | 1982-09-28 | 1988-03-01 | Plough, Inc. | Method for making a plastic spring |
| EP1637457B1 (en) | 2003-06-19 | 2011-09-14 | Dai Nippon Printing Co., Ltd. | In-mold label system plastic container |
-
1980
- 1980-10-08 JP JP14087180A patent/JPS5764530A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190358752A1 (en) * | 2018-05-25 | 2019-11-28 | Senju Metal Industry Co., Ltd. | Solder Ball, Solder Joint, and Joining Method |
| US10780530B2 (en) * | 2018-05-25 | 2020-09-22 | Senju Metal Industry Co., Ltd. | Solder ball, solder joint, and joining method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5764530A (en) | 1982-04-19 |
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