JPH10202353A - Forming die device for product having female screw - Google Patents
Forming die device for product having female screwInfo
- Publication number
- JPH10202353A JPH10202353A JP1020597A JP1020597A JPH10202353A JP H10202353 A JPH10202353 A JP H10202353A JP 1020597 A JP1020597 A JP 1020597A JP 1020597 A JP1020597 A JP 1020597A JP H10202353 A JPH10202353 A JP H10202353A
- Authority
- JP
- Japan
- Prior art keywords
- female screw
- forming
- core
- product
- screw forming
- 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
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、溶融金属材を用い
たダイキャスト鋳造や合成樹脂材を用いた樹脂射出成形
でもって鋳造・成形される製品に、製品を鋳造・成形す
ると同時に雌螺子（穴）を形成することが可能な成形金
型装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product which is cast and molded by die casting using a molten metal material or resin injection molding using a synthetic resin material, and at the same time, a female screw ( The present invention relates to a molding die apparatus capable of forming a hole.
【０００２】[0002]
【従来の技術】ダイカスト鋳造機や樹脂射出成形機で製
品を鋳造・成形する際に同時にその製品に雌螺子（穴）
を形成する鋳造・成形法は従来から各種の方法が提案さ
れている（例えば、特願昭６０―４７０９号公報，特開
平６―１１４８８６号公報，等を参照）。しかし乍ら、
従来のこの種装置は構造が複雑であったり、成形した雌
螺子（穴）部分にバリが生じて二次加工を必要としたり
して製品を効率よく量産できない、等の不具合がった。2. Description of the Related Art When a product is cast and molded by a die casting machine or a resin injection molding machine, a female screw (hole) is simultaneously formed in the product.
Various methods have been proposed for the casting and molding methods for forming (for example, see Japanese Patent Application No. 60-4709, Japanese Patent Application Laid-Open No. 6-114886). However,
This type of conventional device has problems such as a complicated structure, and the formation of burrs at the formed female screw (hole) portion, requiring secondary processing, and the mass production of products cannot be performed efficiently.
【０００３】[0003]
【発明が解決しようとする課題】本発明はこの様な従来
の不具合に鑑みてなされたものであり、成形した雌螺子
穴部分の二次加工を格別必要とせず、比較的簡単な構成
でもって製品を効率よく鋳造・成形することが可能な、
螺雌子を有する製品の成形金型装置を提供せんとするも
のである。SUMMARY OF THE INVENTION The present invention has been made in view of such conventional problems, and does not require any special secondary processing of the formed female screw hole portion, and has a relatively simple structure. It is possible to cast and mold products efficiently,
An object of the present invention is to provide a molding die apparatus for a product having a screw thread.
【０００４】[0004]
【課題を解決するための手段】斯る目的を達成する本発
明の雌螺子を有する製品の成形金型装置は、外周面に雄
螺子を刻設した複数個の雌螺子成形部を等間隔に放射状
に突設してなる雌螺子部成形用中子を可動型又は固定型
のどちらか一方に設置し、上記雌螺子成形部を金型キャ
ビティ内に周方向に回転可能に配置すると共に、前記雌
螺子部成形用中子を設置していない方の可動型又は固定
型側に、上記各雌螺子成形部の間に嵌合して雌螺子穴の
一部を成形する成形突起部を突設せしめてなる事を特徴
としたものである。この時、前記雌螺子部成形用中子の
各雌螺子成形部を周方向に回転させて、他の雌螺子成形
部で成形した雌螺子成形部分を少なくとも一度は通過さ
せるようにする事が好ましい。According to the present invention, there is provided a molding die apparatus for a product having a female screw according to the present invention, in which a plurality of female screw forming portions each having a male screw engraved on an outer peripheral surface are arranged at equal intervals. A radially projecting female screw portion forming core is installed on either the movable mold or the fixed mold, and the female screw forming portion is disposed in the mold cavity so as to be rotatable in the circumferential direction, On the movable mold or fixed mold side on which the female screw part forming core is not installed, a forming protrusion for fitting a part between the female screw forming parts and forming a part of the female screw hole is protruded. It is characterized by being at least done. At this time, it is preferable to rotate each female screw forming portion of the female screw portion forming core in the circumferential direction so that the female screw forming portion formed by another female screw forming portion passes at least once. .
【０００５】[0005]
【発明の実施の形態】以下、本発明の具体的な実施例を
図面に基づいて説明する。図中、１ａは可動型を示し、
１ｂは固定型を示し、これら可動型１ａと固定型１ｂと
でもって、雌螺子穴Ｈを有する製品Ｓを鋳造するための
金型キャビティ２が構成され、可動型１ａ又は固定型１
ｂのどちらか一方に、上記雌螺子穴Ｈを成形するための
雌螺子部成形用中子３が設置される。Embodiments of the present invention will be described below with reference to the drawings. In the figure, 1a indicates a movable type,
Reference numeral 1b denotes a fixed mold, and the movable mold 1a and the fixed mold 1b constitute a mold cavity 2 for casting a product S having a female screw hole H. The movable mold 1a or the fixed mold 1
A female screw part forming core 3 for forming the female screw hole H is installed in either one of b.
【０００６】雌螺子部成形用中子３は、一本の中子軸３
１の先端部に複数個の雌螺子成形部３２ａ，３２ｂ，…
を中子軸３１の軸芯を中心にして周方向に等間隔をおい
て放射状に突設してなり、中子軸３１を可動型１ａ又は
固定型１ｂのどちらか一方、図示実施例にあっては可動
型１ａ側に配設し、各雌螺子成形部３２ａ，３２ｂ，…
を金型キャビティ２内に中子軸３１の軸芯を中心にして
周方向に回転可能に配置せしめる。[0006] The female screw part forming core 3 includes a single core shaft 3.
A plurality of female screw forming portions 32a, 32b,.
Are protruded radially at equal intervals in the circumferential direction around the axis of the core shaft 31 so that the core shaft 31 can be either the movable type 1a or the fixed type 1b, as shown in FIG. Are disposed on the movable die 1a side, and the female screw forming portions 32a, 32b,.
In the mold cavity 2 so as to be rotatable in the circumferential direction around the axis of the core shaft 31.
【０００７】雌螺子部成形用中子３の各雌螺子成形部３
２ａ，３２ｂ，…は、製品Ｓに形成する雌螺子穴Ｈの深
さと同じ厚みを有し且つ外周面が雌螺子穴Ｈの内周と同
じ曲率を有する略凸状に形成すると共に、その外周面に
雄螺子３３を刻設してなり、これら複数個の雌螺子成形
部３２ａ，３２ｂ，…を中子軸３１の先端部に中子軸３
１の軸芯を中心にして周方向に等間隔をおいて放射状に
中子軸３１と同一体又は一体的に突設せしめる。Each female screw forming part 3 of the female screw forming core 3
.. Have the same thickness as the depth of the female screw hole H formed in the product S, and the outer peripheral surface thereof is formed in a substantially convex shape having the same curvature as the inner circumference of the female screw hole H, and the outer periphery thereof. A plurality of female screw forming portions 32a, 32b,...
The core body 31 and the core shaft 31 are protruded radially at equal intervals in the circumferential direction around the center of one shaft core.
【０００８】即ち、例えば２個の雌螺子成形部を突設す
る場合には中子軸３１の軸芯を中心にして互いに周方向
に１８０°の間隔をおいて配置せしめ、また３個の雌螺
子成形部を用いる場合には周方向に１２０°の間隔をお
いて配置せしめ、図示実施例のごとく４個の雌螺子成形
部３２ａ，３２ｂ，３２ｃ，３２ｄを用いる場合には周
方向に９０°の間隔をおいて配置するものである。尚、
当然のことであるが、各雌螺子成形部３２ａ，３２ｂ，
…の外周面に刻設する雄螺子３３は、全部の雌螺子成形
部３２ａ，３２ｂ，…を通して１条の螺子を構成するよ
うに形成される。That is, for example, when two female screw forming portions are protrudingly provided, they are arranged at an interval of 180 ° in the circumferential direction with respect to the core of the core shaft 31, and three female screw forming portions are formed. In the case where the screw forming portions are used, they are arranged at intervals of 120 ° in the circumferential direction. Are arranged at intervals. still,
As a matter of course, each female screw forming part 32a, 32b,
Are formed so as to form a single screw through all the female screw forming portions 32a, 32b,....
【０００９】そして、雌螺子部成形用中子３の雌螺子成
形部３２ａ，３２ｂ，…は、金型キャビティ２内に配置
されると共に中子軸３１の軸芯を中心にして周方向に回
転可能に設置される。この際、各雌螺子成形部３２ａ，
３２ｂ，…は、成形した雌螺子穴Ｈに対して周方向に螺
動回転させて引き抜くために、中子軸３１の軸方向にも
移動し得るように設置することが好まし。The female screw forming portions 32a, 32b,... Of the female screw forming core 3 are arranged in the mold cavity 2 and rotate in the circumferential direction around the axis of the core shaft 31. Installed as possible. At this time, each female screw forming part 32a,
32b are preferably installed so as to be able to move in the axial direction of the core shaft 31 in order to be pulled out by being rotated in the circumferential direction with respect to the formed female screw hole H.
【００１０】雌螺子部成形用中子３の雌螺子成形部３２
ａ，３２ｂ，…を、中子軸３１の軸芯を中心にして周方
向に回転可能とすると同時に中子軸３１の軸方向にも移
動自在ならしめるために図示実施例のものは、雌螺子部
成形用中子３を設置した側の金型（実施例では、可動型
１ａ）の背面にブラケット４を介して回転アクチュエー
タ（電動モータなど）５を設置し、回転アクチュエータ
５の回転軸５１に略凸形に形成せしめた連結具５２を一
体的に取付けると共に、雌螺子部成形用中子３の中子軸
３１の基端側には断面略凹形に形成せしめた連結具３４
を一体的に取付けて、ケーシング６内で中子軸３１側の
連結具３４と上記回転アクチュエータ５側の連結具５２
とを、凹形と凸形の組合わせによる自在継手様の連結構
造でもって連結せしめたものである。このように構成す
る事により、雌螺子部成形用中子３の各雌螺子成形部３
２ａ，３２ｂ，…が、簡単な構成でもって周方向の回転
にも軸方向の移動にも容易に対応することが出来るよう
になる。The female screw forming portion 32 of the female screw forming core 3
In order to make a, 32b,... rotatable in the circumferential direction about the core of the core shaft 31 and also to be movable in the axial direction of the core shaft 31, the female screw in the embodiment shown A rotary actuator (electric motor or the like) 5 is installed via a bracket 4 on the back surface of a mold (movable die 1a in the embodiment) on which the part forming core 3 is installed. A connecting tool 52 formed in a substantially convex shape is integrally attached, and a connecting tool 34 formed in a substantially concave cross section is provided on the base end side of the core shaft 31 of the female screw portion forming core 3.
Are integrally attached to each other, so that the connecting tool 34 on the core shaft 31 side and the connecting tool 52 on the rotary actuator 5 side in the casing 6.
Are connected by a universal joint-like connection structure using a combination of a concave shape and a convex shape. With such a configuration, each female screw forming portion 3 of the female screw portion forming core 3 is formed.
, 2a, 32b,... Can easily cope with both circumferential rotation and axial movement with a simple configuration.
【００１１】他方、雌螺子部成形用中子３を設置してい
ない方の可動型１ａ又は固定型１ｂ側（実施例にあって
は固定型１ｂ側）には、上記各雌螺子成形部３２ａ，３
２ｂ，…の間に嵌合して雌螺子穴Ｈの一部を成形するた
めの成形突起部７ａ，７ｂ，…を突設せしめる。On the other hand, on the side of the movable die 1a or the fixed die 1b where the female screw part forming core 3 is not installed (the fixed die 1b side in the embodiment), the above-mentioned female screw forming parts 32a are provided. , 3
2b,.. Are formed to form a part of the female screw hole H by projections 7a, 7b,.
【００１２】成形突起部７ａ，７ｂ，…は、外周面に雄
螺子３３を形成せしめた各雌螺子成形部３２ａ，３２
ｂ，…と協同して雌螺子穴Ｈを成形し得るように、各雌
螺子成形部３２ａ，３２ｂ，…の間に適合して嵌合し且
つ雌螺子成形部３２ａ，３２ｂ，…の厚みと同じ厚さを
有し外周面が平滑で雌螺子成形部３２ａ，３２ｂ，…の
雄螺子３３の外周と同じ曲率を有する平面略扇形状に形
成する。Are formed on the outer peripheral surface of the female screw forming portions 32a, 32b.
are fitted and fitted between the female screw forming portions 32a, 32b,... so that the female screw holes H can be formed in cooperation with the female screw forming portions 32a, 32b,. It has the same thickness, has a smooth outer peripheral surface, and is formed in a substantially fan-shaped planar shape having the same curvature as the outer periphery of the male screw 33 of the female screw forming portions 32a, 32b,.
【００１３】而して、雌螺子穴Ｈを有する製品Ｓを鋳造
・成形する場合には、可動型１ａと固定型１ｂを型閉め
した後、金型キャビティ２内に溶融金属又は合成樹脂を
供給充填して凝固させる（図１参照）。When the product S having the female screw hole H is cast and formed, the movable mold 1a and the fixed mold 1b are closed, and then molten metal or synthetic resin is supplied into the mold cavity 2. Fill and solidify (see FIG. 1).
【００１４】すると、金型キャビティ２内で製品Ｓが鋳
造・成形されると同時に、雌螺子部成形用中子３の雌螺
子成形部３２ａ，３２ｂ，…と成形突起部６とでもって
雌螺子穴Ｈが形成される。この時、雌螺子穴Ｈは、各雌
螺子成形部３２ａ，３２ｂ，…の外周面に形成せしめた
雄螺子３３部分で雌螺子Ｈ1 が成形され、成形突起部７
ａ，７ｂ，…の外周面でもって雌螺子Ｈ1 の谷部とほぼ
同じ深さに平滑な内周壁Ｈ2 が成形される（図３及び図
４参照）。Then, at the same time as the product S is cast and molded in the mold cavity 2, the female screw is formed by the female screw forming portions 32a, 32b,. A hole H is formed. At this time, a female screw hole H is the female screw forming portion 32a, 32 b, ... female screw H 1 male thread 33 portion was allowed formed on the outer peripheral surface of the molded, shaped protrusion 7
a, 7b, ... substantially at the same depth smooth inner wall H 2 is formed a valley portion of the female screw H 1 with the outer peripheral surface (see FIG. 3 and FIG. 4).
【００１５】然る後、金型を型開きすると、可動型１ａ
側に製品Ｓが付着した状態で固定型１ｂが可動型１ａか
ら離れ、固定型１ｂ側に突設せしめた成形突起部７ａ，
７ｂ，…が配置されていた部分にそれぞれ空間Ｋが形成
されるをもって（図４及び図５（ａ）参照）、雌螺子部
成形用中子３の雌螺子成形部３２ａ，３２ｂ，…が中子
軸３１の軸芯を中心にして周方向に回転可能となる。Thereafter, when the mold is opened, the movable mold 1a is opened.
The fixed mold 1b is separated from the movable mold 1a in a state where the product S is adhered to the side, and the molded projections 7a,
The spaces K are formed in the portions where the 7b,... Are arranged (see FIGS. 4 and 5A), so that the female screw forming portions 32a, 32b,. It becomes rotatable in the circumferential direction about the axis of the slave shaft 31.
【００１６】そこで、雌螺子部成形用中子３の各雌螺子
成形部３２ａ，３２ｂ，…を回転アクチュエータ５を動
作させて中子軸３１の軸芯を中心にして周方向に適宜角
度回転させると、各雌螺子成形部３２ａ，３２ｂ，…は
雌螺子穴Ｈの雌螺子Ｈ1 が形成された部分から平滑な内
周壁Ｈ2 が形成された空間Ｋ部分に移動し、製品Ｓを押
出装置の押出しピン７で押し出せば可動型１ａ側から離
脱させることが可能となる。この時、製品Ｓを可動型１
ａ側から離脱させる前に、更に雌螺子部成形用中子３の
各雌螺子成形部３２ａ，３２ｂ，…を中子軸３１の軸芯
を中心にして周方向に回転させて、各雌螺子成形部３２
ａ，３２ｂ，…を他の雌螺子成形部３２ａ，３２ｂ，…
で成形した雌螺子Ｈ1 の成形部分を少なくとも一度は通
過させるようにすることが好ましい。The female screw forming parts 32a, 32b,... Of the female screw part forming core 3 are rotated by an appropriate angle in the circumferential direction around the axis of the core shaft 31 by operating the rotary actuator 5. If, each female screw forming portion 32a, 32 b, ... are moved to the space K moiety female screw H 1 inner wall is smooth from the formed part H 2 is formed in the female screw hole H, extruder the product S If it is pushed out by the pushing pin 7 of the movable mold 1a, it can be separated from the movable mold 1a side. At this time, the product S is
Before the female screw is removed from the side a, the female screw forming portions 32a, 32b,... of the female screw forming core 3 are further rotated in the circumferential direction about the core of the core shaft 31 so that each female screw is Molded part 32
a, 32b,... are replaced with other female screw forming portions 32a, 32b,.
In it is preferable that the at least once passes the shaped portion of the female screw H 1 molded.
【００１７】即ち、図示実施例の如く４個の雌螺子成形
部３２ａ，３２ｂ，３２ｃ，３２ｄが周方向に９０°の
間隔をおいて配置突設されている場合には、金型１ａ，
１ｂを型開きした後（図５（ａ）の状態）、雌螺子部成
形用中子３の各雌螺子成形部３２ａ，３２ｂ，…を周方
向に４５°前後回転させると、各雌螺子成形部３２ａ，
３２ｂ，…が雌螺子穴Ｈの雌螺子Ｈ1 部分から平滑な内
周壁Ｈ2 が形成されている空間Ｋ部分に移動するので製
品Ｓを可動型１ａから離脱させることが可能となる（図
５（ｂ）の状態）が、更に各雌螺子成形部３２ａ，３２
ｂ，…を周方向に４５°前後回転させると、各雌螺子成
形部３２ａ，３２ｂ，…が他の雌螺子成形部３２ａ，３
２ｂ，…で成形した雌螺子Ｈ1 部分に螺合し（図５
（ｃ）の二点鎖線で示した状態）、そして更に各雌螺子
成形部３２ａ，３２ｂ，…を周方向に４５°前後回転さ
せることにより（図５（ｃ）の実線で示した状態）、各
雌螺子成形部３２ａ，３２ｂ，…が他の雌螺子成形部３
２ａ，３２ｂ，…で成形した雌螺子Ｈ1 部分を通過する
ようになる。That is, when the four female screw forming portions 32a, 32b, 32c, 32d are arranged and projected at 90 ° intervals in the circumferential direction as in the illustrated embodiment, the dies 1a,
After opening the mold 1b (the state shown in FIG. 5 (a)), each of the female screw forming portions 32a, 32b,... Of the female screw forming core 3 is rotated around 45 ° in the circumferential direction. Part 32a,
32 b, ... is possible to separate the product S from the movable mold 1a so moved to the space K portion inner peripheral wall H 2 smooth from the female screw H 1 portion of the female screw hole H is formed (FIG. 5 (State (b)) further includes the female screw forming portions 32a, 32
are rotated around 45 ° in the circumferential direction, each of the female screw forming portions 32a, 32b,.
2b, screwed into the female screw H 1 part molded in ... (Fig. 5
By rotating the female screw forming portions 32a, 32b,... In the circumferential direction by about 45 ° (state shown by the two-dot chain line in FIG. 5C) (state shown by the solid line in FIG. 5C), Each of the female screw forming portions 32a, 32b,.
2a, 32 b, made ... to pass through the female screw H 1 part molded in.
【００１８】然る後に、押出装置を動作させて押出しピ
ン８でもって製品Ｓを押し出せば、雌螺子穴Ｈが形成さ
れた製品Ｓを可動型１ａ側から取り出すことができる。
そうして、可動型１ａと固定型１ｂの金型キャビティ２
をエアーブローし離型剤を塗布した後、再び可動型１ａ
と固定型１ｂを型閉めし、以下、上述した動作を繰り返
すものである。Thereafter, the product S having the female screw hole H formed thereon can be taken out from the movable mold 1a by operating the extruder and pushing out the product S with the push pins 8.
Then, the mold cavity 2 of the movable mold 1a and the fixed mold 1b
After air blowing and applying a release agent, the movable mold 1a is again
And the fixed mold 1b are closed, and the above-described operation is repeated thereafter.
【００１９】[0019]
【発明の効果】本発明に係る雌螺子を有する製品の成形
金型装置は斯様に構成したので、雌螺子部成形用中子を
周方向に数１０°から多くとも６０°前後回動させるだ
けで、鋳造・成形した製品を雌螺子部成形用中子の雌螺
子成形部から分離して金型から離脱させることが可能と
なり、よって比較的簡単な構成でもって雌螺子穴を有す
る製品を効率よく鋳造・成形することが可能となる。According to the present invention, since the molding die apparatus for forming a product having a female screw according to the present invention is configured as described above, the core for forming the female screw portion is rotated around several tens to at most 60 ° in the circumferential direction. By itself, it is possible to separate the cast and formed product from the female screw forming part of the female screw part forming core and to separate it from the mold, so that a product having a female screw hole with a relatively simple configuration can be manufactured. Casting and molding can be performed efficiently.
【００２０】しかも、雌螺子部成形用中子で成形される
雌螺子は、雌螺子穴の全周にわたって成形されているわ
けでなく部分的に形成されているので、多少製品の軽量
化を期することが出来る。Moreover, since the female screw formed by the female screw portion forming core is not formed over the entire circumference of the female screw hole but is formed partially, the weight of the product is reduced somewhat. You can do it.
【００２１】また、特に請求項２に記載の装置によれ
ば、雌螺子部成形用中子の各雌螺子成形部を周方向に回
転させて他の雌螺子成形部で成形した雌螺子成形部分を
少なくとも一度は通過させるようにしたので、雌螺子部
成形用中子の各雌螺子成形部が製品の雌螺子穴を通過す
る際にバリを自動的に排除することができ、よって、成
形した雌螺子穴部分の二次加工を格別必要としない。Further, according to the apparatus of the second aspect, each female screw forming portion of the female screw portion forming core is rotated in the circumferential direction and formed by another female screw forming portion. At least once, the burrs can be automatically eliminated when each female screw forming part of the female screw part forming core passes through the female screw hole of the product, so that the molded Secondary processing of the female screw hole is not particularly required.
【図１】 本発明実施の一例を示す部分断面図。FIG. 1 is a partial cross-sectional view showing one embodiment of the present invention.
【図２】 要部の拡大断面図。FIG. 2 is an enlarged sectional view of a main part.
【図３】 図１の（Ｘ）−（Ｘ）線に沿える拡大断面
図。FIG. 3 is an enlarged sectional view taken along the line (X)-(X) of FIG. 1;
【図４】 型開きした状態を示す要部の一部切欠斜視
図。FIG. 4 is a partially cutaway perspective view of a main part showing a mold opened state.
【図５】 成形した雌螺子穴から雌螺子部成形用中子
の雌螺子成形部を引き抜く工程を説明する断面図。FIG. 5 is a cross-sectional view illustrating a process of pulling out a female screw forming portion of the female screw portion forming core from the formed female screw hole.
【符号の説明】 １ａ…可動型 １ｂ…固定型 ２……金型キャビティ ３……雌螺子
部成形用中子 ３１…中子軸 ３３…雄螺子 ３２ａ，３２ｂ，３２ｃ，３２ｄ………雌螺子成形部 ４……ブラケット ５……回転ア
クチュエータ ５１…回転軸 ３４，５２…
連結具 ６……ケーシング ７ａ，７ｂ，７ｃ，７ｄ…成形突起部 ８……押出し
ピン Ｈ……雌螺子穴 Ｈ1 …雌螺子 Ｈ2 …内周壁 Ｋ……空間部[Description of Signs] 1a… Movable mold 1b… Fixed mold 2 …… Mold cavity 3 …… Core for forming female screw part 31… Core core 33… Male screw 32a, 32b, 32c, 32d …… Female screw Molding part 4 Bracket 5 Rotary actuator 51 Rotary shaft 34, 52
Connector 6 ...... casing 7a, 7b, 7c, 7d ... molded projections 8 ...... ejector pin H ...... female screw hole H 1 ... female threaded H 2 ... inner circumferential wall K ...... space
Claims (2)
子成形部を等間隔に放射状に突設してなる雌螺子部成形
用中子を可動型又は固定型のどちらか一方に設置し、上
記雌螺子成形部を金型キャビティ内に周方向に回転可能
に配置すると共に、前記雌螺子部成形用中子を設置して
いない方の可動型又は固定型側に、上記各雌螺子成形部
の間に嵌合して雌螺子穴の一部を成形する成形突起部を
突設せしめてなる事を特徴とする雌螺子を有する製品の
成形金型装置。1. A female screw part forming core, in which a plurality of female screw forming parts having male screws engraved on an outer peripheral surface thereof are radially projected at equal intervals, to be either a movable type or a fixed type. The female screw forming part is disposed in the mold cavity so as to be rotatable in the circumferential direction, and the female screw part forming core is not provided on the movable or fixed die side where the female screw forming part is not installed. A molding die apparatus for a product having a female screw, characterized in that a forming protrusion for fitting a part of the female screw hole by being fitted between the screw forming parts is provided so as to protrude.
部を周方向に回転させて、他の雌螺子成形部で成形した
雌螺子成形部分を少なくとも一度は通過させるようにし
た事を特徴とする請求項１記載の雌螺子を有する製品の
成形金型装置。2. The female screw forming portion of the female screw portion forming core is rotated in the circumferential direction so that the female screw forming portion formed by another female screw forming portion passes at least once. The molding die apparatus for a product having an internal thread according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01020597A JP3623064B2 (en) | 1997-01-23 | 1997-01-23 | Molding device for product having female screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01020597A JP3623064B2 (en) | 1997-01-23 | 1997-01-23 | Molding device for product having female screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10202353A true JPH10202353A (en) | 1998-08-04 |
| JP3623064B2 JP3623064B2 (en) | 2005-02-23 |
Family
ID=11743779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01020597A Expired - Fee Related JP3623064B2 (en) | 1997-01-23 | 1997-01-23 | Molding device for product having female screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3623064B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7007736B2 (en) | 2003-01-09 | 2006-03-07 | Denso Corporation | Die forming method for forming female screw |
-
1997
- 1997-01-23 JP JP01020597A patent/JP3623064B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7007736B2 (en) | 2003-01-09 | 2006-03-07 | Denso Corporation | Die forming method for forming female screw |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3623064B2 (en) | 2005-02-23 |
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