JPS644499Y2 - - Google Patents
Info
- Publication number
- JPS644499Y2 JPS644499Y2 JP11898083U JP11898083U JPS644499Y2 JP S644499 Y2 JPS644499 Y2 JP S644499Y2 JP 11898083 U JP11898083 U JP 11898083U JP 11898083 U JP11898083 U JP 11898083U JP S644499 Y2 JPS644499 Y2 JP S644499Y2
- Authority
- JP
- Japan
- Prior art keywords
- gate
- product
- mold
- heater
- pipe fittings
- 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
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】 本考案は、管継手用射出成形金型に関する。[Detailed explanation of the idea] The present invention relates to an injection mold for pipe fittings.
第１図に従来の管継手用射出成形金型のゲート
部分を示す。図において、１は固定側型板、２は
可動側型板、３はコア、４はランナー、５はゲー
ト、６はキヤビテイ、７はスプルーである。この
種の金型で成形した管継手などの硬質合成樹脂製
品は製品ゲートが付いたまま金型から取り出され
るので、成形後にこの製品ゲートをはさみや鋸で
切断除去しなくてはならず、生産性が良くない
上、切断ミスによる不良品がでると云う問題があ
つた。 FIG. 1 shows the gate portion of a conventional injection mold for pipe fittings. In the figure, 1 is a stationary template, 2 is a movable template, 3 is a core, 4 is a runner, 5 is a gate, 6 is a cavity, and 7 is a sprue. Hard synthetic resin products such as pipe fittings molded with this type of mold are removed from the mold with the product gate still attached, so this product gate must be cut and removed with scissors or a saw after molding. There were problems in that not only the properties were not good, but also defective products were produced due to cutting errors.
本考案は、この問題点に鑑みてなされたもの
で、ゲートをサブマリンゲートとし、該ゲートが
開口するキヤビテイ面に該ゲートを囲む複数の浅
い細溝を多重に形成すると共に該ゲート近傍にヒ
ータを収める構成とすることにより、管継手など
の曲面を有する製品を製品ゲートと自動的に分離
して取り出すことができる上、製品ゲート切断部
分に２次加工を施さなくても済む射出成形金型を
提供することを目的とする。 The present invention has been developed in view of this problem.The gate is a submarine gate, a plurality of shallow narrow grooves surrounding the gate are formed in the cavity surface where the gate opens, and a heater is installed near the gate. By adopting a configuration that allows products with curved surfaces, such as pipe fittings, to be automatically separated from the product gate and taken out, it is also possible to create an injection mold that eliminates the need for secondary processing on the product gate cut section. The purpose is to provide.
以下、本考案の一実施例を図面を参照して説明
する。 An embodiment of the present invention will be described below with reference to the drawings.
第２図において、１１は固定側型板、１２は可
動側型板、１３はコア、１４はランナー、１５は
ゲート、１６はキヤビテイ、１７はスプルー、１
８はヒータである。ランナー１４の先端部１４Ａ
は可動側型板１２内に伸びており、ゲート１５も
可動側型板１２内に形成されてサブマリンゲート
となつている。キヤビテイ面１６Ａには、第３図
ａ，ｂに示す如く、ゲート１５を取り巻く複数の
浅い細溝１６ａが形成されているい。ヒータ１８
は可動側型板１２内のゲート１５極く近傍に収め
られている。 In Fig. 2, 11 is a fixed side template, 12 is a movable side template, 13 is a core, 14 is a runner, 15 is a gate, 16 is a cavity, 17 is a sprue, 1
8 is a heater. Tip portion 14A of runner 14
extends into the movable template 12, and the gate 15 is also formed within the movable template 12 to serve as a submarine gate. As shown in FIGS. 3a and 3b, a plurality of shallow narrow grooves 16a surrounding the gate 15 are formed in the cavity surface 16A. Heater 18
is housed in the movable mold plate 12 in the vicinity of the gate 15.
この構成では、可動側型板１２のゲート１５が
ヒータ１８で加熱されているので、管継手などの
曲面を有する製品の取り出し時には、製品は硬化
しているが、ゲート１５内に樹脂は未だ硬化して
いないので、製品の突き出しによる金型の落下
時、人手を煩わすことなく自動的に、製品とゲー
ト１５内の樹脂とは別々に分離して落下する。 In this configuration, the gate 15 of the movable template 12 is heated by the heater 18, so when a product having a curved surface such as a pipe joint is taken out, the product is hardened, but the resin inside the gate 15 is still hardened. Therefore, when the mold falls due to ejection of the product, the product and the resin in the gate 15 are automatically separated and dropped separately without any manual effort.
この製品のゲート１５内樹脂とつながつていた
部分の周りには縞模様のような凹凸が形成される
のでゲート破断面の荒れていても目立たず、見る
者に美観さえ与える。 Since a striped pattern-like unevenness is formed around the part of this product that was connected to the resin in the gate 15, even if the gate fracture surface is rough, it is not noticeable and gives a beautiful appearance to the viewer.
以上の如く、本考案の管継手用射出成形金型に
よれば、金型から人手を煩わすことなく製品ゲー
トの除去された管継手などの曲面を有する製品を
取り出すことができ、２次加工を要しないので、
従来に比して、生産性を高め、歩留りを良くし、
製品価格を下げることができる。 As described above, according to the injection molding mold for pipe fittings of the present invention, a product having a curved surface such as a pipe fitting from which the product gate has been removed can be taken out from the mold without any manual effort, and secondary processing can be carried out. Since it is not necessary,
Compared to the past, we have increased productivity and improved yield,
Product prices can be lowered.
第１図は従来の管継手用射出成形金型のゲート
付近の断面図、第２図本考案による管継手用射出
成形金型の実施例の要部断面図、第３図ａは上記
実施例のＸ部拡大図、第３図ｂは第３図ａのＹ矢
視図である。
１１……固定側型板、１２……可動側型板、１
３……コア、１４……ランナー、１４ａ……ラン
ナー先端部、１５……ゲート、１６……キヤビテ
イ、１６Ａ……キヤビテイ面、１６ａ……浅い細
溝、１８……ヒーター。
Fig. 1 is a sectional view of the vicinity of the gate of a conventional injection molding mold for pipe fittings, Fig. 2 is a sectional view of essential parts of an embodiment of the injection molding mold for pipe fittings according to the present invention, and Fig. 3a is the above-mentioned embodiment. FIG. 3b is an enlarged view of the X portion of FIG. 11... Fixed side template, 12... Movable side template, 1
3... Core, 14... Runner, 14a... Runner tip, 15... Gate, 16... Cavity, 16A... Cavity surface, 16a... Shallow narrow groove, 18... Heater.
Claims (1)
口するキヤビテイ面に該ゲートを囲む複数条の浅
い細溝を多重に形成すると共に該ゲート近傍にヒ
ータを収めてなる管継手用射出成形金型。 An injection mold for a pipe joint, in which the gate is a submarine gate, a plurality of shallow narrow grooves surrounding the gate are formed in multiple layers on a cavity surface where the gate opens, and a heater is housed near the gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11898083U JPS6026823U (en) | 1983-07-29 | 1983-07-29 | Injection mold for pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11898083U JPS6026823U (en) | 1983-07-29 | 1983-07-29 | Injection mold for pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6026823U JPS6026823U (en) | 1985-02-23 |
| JPS644499Y2 true JPS644499Y2 (en) | 1989-02-06 |
Family
ID=30273251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11898083U Granted JPS6026823U (en) | 1983-07-29 | 1983-07-29 | Injection mold for pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026823U (en) |
-
1983
- 1983-07-29 JP JP11898083U patent/JPS6026823U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6026823U (en) | 1985-02-23 |
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