JPS6241726A - Mold for molding - Google Patents
Mold for moldingInfo
- Publication number
- JPS6241726A JPS6241726A JP18035685A JP18035685A JPS6241726A JP S6241726 A JPS6241726 A JP S6241726A JP 18035685 A JP18035685 A JP 18035685A JP 18035685 A JP18035685 A JP 18035685A JP S6241726 A JPS6241726 A JP S6241726A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- mold
- molding
- parent
- air vent
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
るものである。
本発明の金型は、がラス販成形に限らず、合成樹脂製品
のブロー成形、真空成形、圧空成形、発泡成形、ゴム成
形等にも実施出来ることは勿論であるが、説明の都合上
、プラス成形用金型について本発明を述べる。It is something that It goes without saying that the mold of the present invention can be used not only for lath sales molding, but also for blow molding, vacuum molding, pressure molding, foam molding, rubber molding, etc. of synthetic resin products, but for convenience of explanation, The present invention will be described regarding a plastic molding mold.
ガラス成形は下型（９）と組み合せた金型（１）にノズ
ル（図示せず）を当て、溶融ガラス原料を金型中にて膨
張させて型面（２）に沿わせ、製品を成形するものであ
るが、ガラス原料の膨張分だけ、金型中の空気を排除す
る必要がある。金型中に空気が残ると、その部分だけガ
ラス原料が行きわたらず、製品が不良となるからである
。
従来、型面（２）の空気が？工留し易い箇所に微小な空
気抜き孔（３）を開設し、この空気抜き孔（３）を通じ
て金型中の空気を吸引し、折除している。ガラス原料が
型面（２）の全面に行きわたった良質な製品を得るには
、金型に空気抜き孔（３）を設けることは絶対必・冴で
あって、その数は金型の大きさと複雑さによって左右さ
れるが、通常の小瓶でも２０＝３０個が必要である。０
表面に文字、模様があると外は、ガラス原料を模様の細
部にまで充満させる必要から、空気抜き孔の数は更に増
える。
空気抜き孔（３）は型面（２）に露出して開口する部分
であるから、孔直径が太きいと、その侭製品表面に孔痕
が写されて、多数の小突起を製品表面に生ゼしぬる。こ
れを避けるため、従来から空気抜す孔を小径化する努力
が重ねられていた。
第３図に従来の空気抜き孔（３）を含む金型の拡大断面
を示１ている。型面（２）の近くまで大径の親孔（４）
が開設され、親孔先端と型面までの間の約５＋ｎ＋ｏの
肉ｊ１１に、微小直径の空気抜き孔（３）を開設し、型
面（２）と親孔（４）とを連通させている。空気抜き化
（３）の直径は、微小である程望ましく、工作加工の技
術限界及び加工費用を勘案し、孔直径が０．５ｍｍ程度
であれば、製品表面に出来る突起が余り目立たないこと
から、ドリルを用い０．５ Ｉｎ Ｉｎ直径の孔をＩＪ
ＩＩ設することが多い。放電加工法では、孔直径が余り
（こ小さすぎて電極消耗が烈しく、非実用的である。
又、孔の位置が型面の複雑な箇所に多数存在し、孔は曲
面に対し垂直に開設せねばならないから、数値制御方式
の工作機↑戒を以てしても、容易ではない。
そのため金型工場では従来がら空気抜き孔の加工に限っ
て、職工の手作業で行なわれていた。しかしたとえ熟練
した職工であっても、高速回転の携・；ｉ？ドリルを用
いて、直径０゜５■、長さ５ｍ１ａの微小孔を型面に開
設するには、神経む緊張させ、息を止めて行なうため疲
労が甚だしく、多数の需変には応じられなかった。
近時、ユーザーの要求は増々厳しく、良質製品を成形す
る必要から、空気抜き孔の直径を０．４ωｍ、終ｉこは
０．３１Ωｍの孔が求められる様になった。金型工場で
は、がろうしてユーザーの要求に応じているが、直径０
．３１、長さ５In glass molding, a nozzle (not shown) is applied to the mold (1) combined with the lower mold (9), and the molten glass raw material is expanded in the mold and aligned with the mold surface (2) to form the product. However, it is necessary to remove air in the mold by the amount of expansion of the glass raw material. This is because if air remains in the mold, the glass raw material will not be able to reach that part, resulting in a defective product. Conventionally, the air on the mold surface (2)? A small air vent hole (3) is opened at a location where it is easy to hold the mold, and the air in the mold is sucked through the air vent hole (3) and broken. In order to obtain a high-quality product in which the glass raw material is spread over the entire surface of the mold surface (2), it is absolutely necessary to provide air vent holes (3) in the mold, and the number of them depends on the size of the mold. Depending on the complexity, 20 = 30 pieces are required for a regular vial. 0
If there are letters or patterns on the surface, the number of air vent holes will further increase because it is necessary to fill the details of the pattern with glass raw material. Since the air vent hole (3) is an exposed part of the mold surface (2), if the diameter of the hole is large, holes will be left on the surface of the product and many small protrusions will be formed on the surface of the product. Zeshinuru. In order to avoid this, efforts have been made to reduce the diameter of the air vent holes. FIG. 3 shows an enlarged cross-section of a conventional mold including air vent holes (3). Large diameter parent hole (4) close to mold surface (2)
is opened, and an air vent hole (3) with a minute diameter is opened in the meat j11 of approximately 5+n+o between the tip of the parent hole and the mold surface, and the mold surface (2) and the parent hole (4) are communicated. . The diameter of the air vent (3) is preferably as small as possible.Taking into account the technical limitations of machining and processing costs, if the hole diameter is about 0.5 mm, the protrusions formed on the product surface will not be so noticeable. Use a drill to drill a hole with a diameter of 0.5 In
II is often set. In the electrical discharge machining method, the diameter of the holes is too small, which causes severe electrode wear, making it impractical.Also, many holes are located at complicated locations on the mold surface, and the holes are opened perpendicular to the curved surface. This is not easy even with numerically controlled machine tools.Therefore, in mold factories, traditionally only the air vent holes were machined by hand by craftsmen.However, even if skilled workers Even skilled craftsmen must be nervous and hold their breath in order to open a minute hole with a diameter of 0°5mm and a length of 5m1a on the mold surface using a high-speed rotary drill. Due to the extremely tiring process, it was not possible to meet the many changes in demand.Recently, the demands of users have become increasingly strict, and due to the need to mold high-quality products, the diameter of the air vent hole was set at 0.4Ωm, and the final diameter was set at 0.4Ωm. Holes with a diameter of 31 Ωm have become required.Mold factories are working hard to meet customer demands, but holes with a diameter of 0.
．． 31, length 5
【Ω噛のドリル孔の１ｌｉＴ設は、ドリ
ル技？ｉｌの限界に達している。
【解決しようとする問題点］
本発明は、金型の型面に開設する空気抜き孔を容易に形
成し、たとえ孔直径が０．５１ｍ以Ｆであっても、熟練
を要さず簡単迅速に形成するものである。
本発明は型面（２）に空気抜き孔（３）の孔径より稍大
ｔその設定孔（７）を開設し、該設定孔（７）へ、微小
貫通孔を有すバイブ（８）を緊密嵌合した金型（１）を
特徴とする。
【作用及び効果】
型面ｉ：空気抜き孔を直接に開設することは困難であっ
ても、それよりも大径の約１■の設定化（７）を開設ｒ
ることには、何の苦労も要らない。
又、微小貫通孔を有す小径パイプは市販されているから
、該バイブを約５ｍｍの長さに切断し、これを設定孔（
７）に緊密嵌合するだけで、型面１こ空気抜き孔（３）
が形成出来るのである。
型面にはバイブ（８）の端面が見えるが、型面の研摩、
メンキ等により端面を型面に一致させることによって、
成形製品には”ｈ’Ｂ−を与えず、従来の成形用金型と
全く同様に使用出来るものである。
【実施例１
成形用金型は、左右の金型（１）と下型（９）とを−組
として形成され、金型（１）及び必要に応じて下型（９
）の夫々の型面（２）に形成すべき空気抜き孔（３）に
合わせて、金型の外側から型面に向けて親孔（４）をド
リルによって１Ｊｆｌ設する。親孔（４）は直径が約５
＋ｕｎであって、型面から約５１の距離まで開設し、最
後に親孔の外側を塞栓（１０）する。
型面（２）上の空気抜き孔（３）の位置から、型面と直
角に且つ親孔（４）に向けて直径約ｌ１１１１１１の設
定孔（７）を開設するのである。
各親孔（４）は下端を連通孔（５）に繋ぎ、該連通孔（
５）に対し、金型の外側から排気孔（６）を開設して連
通させ、朝気孔に真空装置を接続することによって、成
形時に空気抜き孔（３）に吸引作用を及（よすものであ
る。
設定孔（７）には、外径が設定孔（７）の孔径と同−又
は稍大きく、内部には全便に頁って内径０．１〜０、５
＋ｏｔΩの貫通化を有すバイブ（８）を型面から圧入、
接着、冷し嵌め等によって緊密嵌合させ、該バイブ（８
）を通じて型面を親孔（４）に連通させる。
バイブ（８）は、空気抜き孔に合わせて、貫通孔の内径
か０．１〜０．５Ｉａｍ、長さは約５１とし、第２図の
如く枝孔中に突出しても町（、又は親孔から引込んで設
定孔（７）中にあってもよい。これによって０．５ｍ＋
ｎ以下、例えば０．１Ｈの空気孔（３）でも′δ易に形
成出来る。
金型（１）の材質は、ガラス成形用金型の場合は、ｉ鉄
又は銅７０％、ニッケル１０％、アルミニウム１０％の
銅合金鋳物が一般に用いられる。プラスチック又はゴム
成形用金型の場合は、炭素鋼、アルミニウム又は亜鉛含
有炭素鋼が一般に用いられる。
設定孔（７）に緊密嵌合すべきパイプ（８）の材質は、
銅、真鍮、鉄、鋼等がよい。[Is the 1liT installation of the Ω-bit drill hole a drill technique? The limit of il has been reached. [Problems to be Solved] The present invention can easily form an air vent hole in the mold surface of a mold, and even if the hole diameter is 0.51 m or more, it can be easily and quickly done without requiring any skill. It is something that forms. In the present invention, a setting hole (7) with a diameter slightly larger than that of the air vent hole (3) is opened in the mold surface (2), and a vibrator (8) having a minute through hole is tightly inserted into the setting hole (7). Features a fitted mold (1). [Function and effect] Mold surface i: Even if it is difficult to open the air vent hole directly, we can open the setting (7) with a larger diameter of approximately 1 cm.
It doesn't take any effort at all. Also, small diameter pipes with minute through holes are commercially available, so cut the vibrator to a length of about 5 mm and insert it into the setting hole (
7) Just by tightly fitting, one air vent hole (3) on the mold surface is created.
can be formed. The end face of the vibrator (8) is visible on the mold surface, but the mold surface is polished and
By aligning the end surface with the mold surface using a polishing tool etc.,
The molded product is not given "h'B-" and can be used in exactly the same way as a conventional mold. [Example 1] The mold consists of left and right molds (1) and a lower mold ( 9) is formed as a set, and the mold (1) and the lower mold (9) are formed as needed.
) A master hole (4) of 1 Jfl is drilled from the outside of the mold toward the mold surface in accordance with the air vent hole (3) to be formed in each mold surface (2). The parent hole (4) has a diameter of approximately 5
+un, and is opened to a distance of approximately 51 from the mold surface, and finally the outside of the parent hole is embolized (10). From the position of the air vent hole (3) on the mold surface (2), a setting hole (7) with a diameter of about 111111 is opened perpendicular to the mold surface and toward the parent hole (4). Each parent hole (4) connects the lower end to the communication hole (5), and the communication hole (
In contrast to 5), by opening and communicating an exhaust hole (6) from the outside of the mold and connecting a vacuum device to the morning air hole, a suction effect can be applied to the air vent hole (3) during molding. The setting hole (7) has an outer diameter that is the same as or slightly larger than the hole diameter of the setting hole (7), and the inside has an inner diameter of 0.1 to 0.5.
Press-fit the vibrator (8) with +otΩ penetration from the mold surface,
Closely fit the vibrator (8
) to communicate the mold surface with the parent hole (4). The vibrator (8) has an inner diameter of 0.1 to 0.5 Iam and a length of about 51 mm to match the air vent hole, and even if it protrudes into the branch hole as shown in Fig. It may be pulled in from the setting hole (7).This allows for a distance of 0.5m+
Even air holes (3) of n or less, for example 0.1H, can be easily formed. As for the material of the mold (1), in the case of a glass mold, iron or a copper alloy casting containing 70% copper, 10% nickel, and 10% aluminum is generally used. For plastic or rubber molds, carbon steel, aluminum or zinc-containing carbon steel are generally used. The material of the pipe (8) that should be tightly fitted into the setting hole (7) is as follows:
Copper, brass, iron, steel etc. are good.
第１図は本発明に係る金型の縦断面図、第２図は同上の
空気抜き孔部分の拡大断面図、第３図は従来の金型の空
気抜き孔部分の拡大断面図である。FIG. 1 is a longitudinal sectional view of a mold according to the present invention, FIG. 2 is an enlarged sectional view of the air vent hole portion of the same, and FIG. 3 is an enlarged sectional view of the air vent hole portion of a conventional mold.
Claims (1)
孔（７）を、空気抜き親孔（４）に連通して開設し、該
設定孔（７）には微小貫通孔を有すパイプ（８）を緊密
嵌合して成る成形用金型。 ［２］パイプの微小貫通孔は０．５ｍｍより小径である
特許請求の範囲第１項の金型。 ［３］パイプは設定孔に圧入、接着又は冷し嵌めによっ
て緊密嵌合している特許請求の範囲第１項又は第２項の
金型。 ［４］金型は、ガラス成形用、プラスチックのブロー成
形用、真空成形用、圧空成形用、発泡成形用又はゴム成
形用である特許請求の範囲第１項乃至第３項の何れかに
規定する金型。[Scope of Claims] [1] A setting hole (7) having a slightly larger diameter than the air vent hole is opened in the mold surface of the mold so as to communicate with the air vent parent hole (4), and the setting hole (7) A mold is formed by tightly fitting a pipe (8) having a minute through hole into the mold. [2] The mold according to claim 1, wherein the minute through-hole of the pipe has a diameter smaller than 0.5 mm. [3] The mold according to claim 1 or 2, wherein the pipe is tightly fitted into the setting hole by press fitting, adhesion, or cold fitting. [4] The mold is defined in any one of claims 1 to 3, which is for glass molding, plastic blow molding, vacuum molding, pressure molding, foam molding, or rubber molding. mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18035685A JPS6241726A (en) | 1985-08-15 | 1985-08-15 | Mold for molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18035685A JPS6241726A (en) | 1985-08-15 | 1985-08-15 | Mold for molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6241726A true JPS6241726A (en) | 1987-02-23 |
| JPH0151451B2 JPH0151451B2 (en) | 1989-11-02 |
Family
ID=16081806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18035685A Granted JPS6241726A (en) | 1985-08-15 | 1985-08-15 | Mold for molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6241726A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690042A (en) * | 2012-05-28 | 2012-09-26 | 常熟市建华模具有限责任公司 | Die for manufacturing glass container |
| CN109878006A (en) * | 2018-12-28 | 2019-06-14 | 上海中盟石油天然气有限公司 | The production method for manufacturing PDC drill bit rubber mold |
-
1985
- 1985-08-15 JP JP18035685A patent/JPS6241726A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690042A (en) * | 2012-05-28 | 2012-09-26 | 常熟市建华模具有限责任公司 | Die for manufacturing glass container |
| CN109878006A (en) * | 2018-12-28 | 2019-06-14 | 上海中盟石油天然气有限公司 | The production method for manufacturing PDC drill bit rubber mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0151451B2 (en) | 1989-11-02 |
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