JP2793927B2 - Molding method - Google Patents
Molding methodInfo
- Publication number
- JP2793927B2 JP2793927B2 JP3435192A JP3435192A JP2793927B2 JP 2793927 B2 JP2793927 B2 JP 2793927B2 JP 3435192 A JP3435192 A JP 3435192A JP 3435192 A JP3435192 A JP 3435192A JP 2793927 B2 JP2793927 B2 JP 2793927B2
- Authority
- JP
- Japan
- Prior art keywords
- coil spring
- mold
- boss
- molded product
- boss portion
- 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 - Fee Related
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は樹脂製の成形品のボデ
ィとコイルバネとを一体化する成形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding method for integrating a resin molded body with a coil spring.
【０００２】[0002]
【従来の技術】従来、成形品からなるボディにコイルバ
ネを組込む場合、図８に示すように、成形装置の金型の
固定側３と可動側１間に区画形成されたキャビティ４内
にゲート２を介し樹脂を注入してボディ５を成形した
後、突き出しピン７を上動させ、図９に示すように、ボ
ディ５を取り出していた。2. Description of the Related Art Conventionally, when a coil spring is incorporated into a body made of a molded product, as shown in FIG. 8, a gate 2 is formed in a cavity 4 defined between a fixed side 3 and a movable side 1 of a mold of a molding apparatus. After molding the body 5 by injecting a resin through it, the protruding pin 7 is moved upward to take out the body 5 as shown in FIG.
【０００３】しかる後、図１０に示すコイルバネ６をボ
ディ５の円筒状のボス部５ａに組込むには、組立ロボッ
ト（図示せず）にてコイルバネ６を把握して所定位置に
移動し、図１１に示すように、ボディ５のボス部５ａの
外周に嵌合して組込んでいた。Thereafter, in order to incorporate the coil spring 6 shown in FIG. 10 into the cylindrical boss portion 5a of the body 5, the assembly robot (not shown) grasps the coil spring 6 and moves it to a predetermined position. As shown in the figure, the boss portion 5a of the body 5 is fitted and incorporated into the outer periphery.
【０００４】[0004]
【発明が解決しようとする課題】このように従来の方法
では成形装置のほかに組立ロボットをも必要とし、設備
面でコストがかかるという課題があった。また、ボディ
５を成形する工程と、これとは別途独立したコイルバネ
６を組込む工程との２つの工程を要し、製造が煩雑であ
り、かつ組立ミスが生ずるおそれがある、という課題が
あった。As described above, the conventional method requires an assembling robot in addition to the molding apparatus, and has a problem that the equipment is costly. In addition, there are two steps of a step of forming the body 5 and a step of incorporating a coil spring 6 which is independent of the body 5, and there is a problem that the manufacturing is complicated and an assembly error may occur. .
【０００５】この発明は上記のことに鑑み提案されたも
ので、その目的とするところは、金型内にてコイルバネ
を容易に組込むことができるようにし、組立工程、設備
を簡略化し得る成形方法を提供することにある。The present invention has been proposed in view of the above, and an object of the present invention is to provide a molding method capable of easily incorporating a coil spring in a mold and simplifying an assembling process and equipment. Is to provide.
【０００６】[0006]
【課題を解決するための手段】この発明では、成形品と
コイルバネとを一体化する成形方法において、外径がコ
イルバネの内径と略同じ外径のボス部を、成形品の成形
と同時に形成する金型を用い、前記ボス部に設けた突き
出しピンを第１の所定位置に配してキャビティに樹脂を
注入してボス部付きの成形品を成形する工程と、つい
で、前記金型内に設けられた前記突き出しピンを後退さ
せてこの突き出しピン上にコイルバネを配し、ボス部に
対向配置する工程と、型開きの場合、前記突き出しピン
を突き出して成形品の取り出しと同時にボス部にコイル
バネを装着する工程と、により成形品とコイルバネとを
一体化するようにして上記目的を達成している。According to the present invention, in a molding method for integrating a molded article and a coil spring, a boss having an outer diameter substantially equal to the inner diameter of the coil spring is formed simultaneously with molding of the molded article. Disposing a protrusion pin provided on the boss portion at a first predetermined position using a mold, injecting a resin into a cavity to form a molded article with a boss portion, and then providing the molded product in the mold. Retracting the projected pin and disposing a coil spring on the projected pin and disposing the coil spring on the boss, and in the case of opening the mold, projecting the projected pin to remove the molded product and simultaneously apply the coil spring to the boss. The above object is achieved by integrating the molded product and the coil spring by the mounting step.
【０００７】[0007]
【作用】上記のように、本発明では金型内にコイルバネ
を配して、成形品のボス部を押圧すべく金型内に設けら
れた突き出しピンを利用して、成形品を突き出す場合に
コイルバネをボス部に装着してしまうようにしている。
したがって、コイルバネを装着するための別途の組立ロ
ボット設備や、その工程等を不用とすることができる。As described above, in the present invention, when a coil spring is arranged in a mold, and a molded product is ejected by using an ejection pin provided in the mold to press a boss portion of the molded product. The coil spring is mounted on the boss.
Therefore, a separate assembling robot facility for mounting the coil spring, a step thereof, and the like can be omitted.
【０００８】[0008]
【実施例】図１ないし図７は本発明の一実施例を示す。
このうち、図１は本発明の実施例における最終工程を示
すものであり、図中１は成形装置である金型の固定側、
２はそのゲート、３は金型の可動側、４はそのキャビテ
ィ、５はキャビティ４を介し成形された成形品であるボ
ディ、５ａはそのボス部、５ｂはコイルバネ引掛け部、
６はボディ５のボス部５ａに組込まれたコイルバネ、
７，８は可動側３の上面から出没自在な第１，第２の突
き出しピン、また、３ａは可動側３に形成されたコイル
バネ挿入口で、一方の第１の突き出しピン７が摺動自在
となっているガイド穴９の軸方向に対しほぼ水平に形成
され、かつ外端から手またはロボット等によりコイルバ
ネ６を縦状にして挿入するようになっており、内端がガ
イド穴９と連通している。1 to 7 show an embodiment of the present invention.
Among them, FIG. 1 shows a final step in the embodiment of the present invention. In FIG.
2 is the gate, 3 is the movable side of the mold, 4 is the cavity, 5 is a body molded through the cavity 4, 5a is its boss, 5b is the coil spring hook,
6 is a coil spring incorporated in the boss 5a of the body 5,
Reference numerals 7 and 8 denote first and second protruding pins which can be protruded and retracted from the upper surface of the movable side 3, and reference numeral 3a denotes a coil spring insertion port formed on the movable side 3 and one of the first protruding pins 7 is slidable. The guide hole 9 is formed substantially horizontally with respect to the axial direction, and the coil spring 6 is inserted vertically from the outer end by hand or by a robot or the like, and the inner end communicates with the guide hole 9. doing.
【０００９】しかして、本発明では、ボディ５を成形
後、型開きの際、突き出しピン７，８を矢印で示すよう
に上動させ、ボディ５を金型のキャビティ４から取り出
す場合に、コイルバネ６を一挙にボディ５のボス部５ａ
に組込んでしまうように構成されている。According to the present invention, when the body 5 is molded and the mold is opened, the projecting pins 7 and 8 are moved upward as shown by arrows, and the body 5 is taken out from the cavity 4 of the mold. 6 at a glance Boss 5a of body 5
It is configured to be incorporated into the.
【００１０】すなわち、製造にあたっては、まず、図２
に示すように、金型の固定側１と可動側３とによってキ
ャビティ４が区画形成され、かつ一方の突き出しピン７
は若干下方の第１の所定位置に下げられ、他方の突き出
しピン８の上面はキャビティ４の底面とほぼ面一になる
位置に設けられている。That is, in manufacturing, first, FIG.
As shown in FIG. 1, a cavity 4 is defined by the fixed side 1 and the movable side 3 of the mold, and one of the protruding pins 7 is formed.
Is slightly lowered to a first predetermined position, and the upper surface of the other protruding pin 8 is provided at a position substantially flush with the bottom surface of the cavity 4.
【００１１】そして、一方の突き出しピン７を下方の所
定位置に後退させて下げた状態によって、キャビティ４
にガイド穴９の外周面と突き出しピン７の上面とによっ
て区画形成される円筒部４ａ（後述するボディ５のボス
部５ａの成形部）を区画形成している。この円筒部４ａ
もキャビティ４となるもので、その外周面に適間隔で凹
状であって半球部３ｂが、例えば３ケ所形成されてい
る。図３は図２におけるＡ部の拡大図、図４は図３にお
いてａ方向から見た状態図である。When one of the protruding pins 7 is retracted to a predetermined lower position and lowered, the cavity 4
A cylindrical portion 4a (formed portion of a boss portion 5a of the body 5 described later) defined by the outer peripheral surface of the guide hole 9 and the upper surface of the protruding pin 7 is formed. This cylindrical part 4a
The cavity 4 also has a concave shape at an appropriate interval on its outer peripheral surface, and three hemispherical portions 3b are formed, for example. FIG. 3 is an enlarged view of a portion A in FIG. 2, and FIG. 4 is a state diagram viewed from the direction a in FIG.
【００１２】図５はボディ５の成形状態を示すもので、
ゲート２を介しキャビティ４内に樹脂を注入して成形す
る。また、成形時に金型の外部に通じるコイルバネ挿入
口３ａの外端からコイルバネ６をセットする。FIG. 5 shows a molded state of the body 5.
A resin is injected into the cavity 4 through the gate 2 and molded. Further, the coil spring 6 is set from the outer end of the coil spring insertion opening 3a communicating with the outside of the mold at the time of molding.
【００１３】ついで、図６に示すように、型開きの際、
突き出しピン７を更に下方の所定位置に下げ、コイルバ
ネ挿入口３ａとガイド穴９とを連通させ、かつエアーに
よりコイルバネ６を圧送してガイド穴９内に送り込み、
コイルバネ６をボス部５ａと対向させる。なお、円筒部
４ａを含むキャビティ４によって成形されたボディ５の
ボス部５ａには半球部３ｂによってコイルバネ引掛け部
５ｂが突設される。[0013] Next, as shown in FIG.
The protruding pin 7 is further lowered to a predetermined position to make the coil spring insertion opening 3a communicate with the guide hole 9, and the coil spring 6 is pressure-fed by air and fed into the guide hole 9.
The coil spring 6 faces the boss 5a. The boss 5a of the body 5 formed by the cavity 4 including the cylindrical portion 4a is provided with a coil spring hook 5b by a hemispherical portion 3b.
【００１４】しかして、型開き後、ボディ５を取り出す
べく第１，第２の突き出しピン７，８を上動させれば、
これら突き出しピン７の上動に伴いコイルバネ６が押し
上げられ、ボス部５ａの外周にコイルバネ６を嵌合させ
つつボディ５がキャビティ４から押し上げられ、図１に
示すように、コイルバネ６がボディ５に一体に組込んだ
状態で取り出すことができる。なお、型開きの過程で、
コイルバネ６を組込むことも可能である。After the mold is opened, if the first and second protruding pins 7, 8 are moved upward to take out the body 5,
The coil spring 6 is pushed up by the upward movement of the protruding pin 7, and the body 5 is pushed up from the cavity 4 while fitting the coil spring 6 on the outer periphery of the boss portion 5 a, and as shown in FIG. It can be taken out in a state where it is integrated. In the process of opening the mold,
It is also possible to incorporate a coil spring 6.
【００１５】この場合、コイルバネ６の内径はボディ５
のボス部５ａに取付けられるようその外径と略同じ寸法
に設定され、また、コイルバネ引掛け部５ｂの出っ張り
は僅かであるので、ガイド穴９から容易に離脱させるこ
とができる。また、コイルバネ６はボス部５ａのコイル
バネ引掛け部５ｂによってその脱落を防止し得る。図７
はコイルバネ６の取付状態の一例の斜視図である。In this case, the inner diameter of the coil spring 6 is
The outer diameter of the coil spring hooking portion 5b is small so that it can be easily detached from the guide hole 9. Further, the coil spring 6 can be prevented from falling off by the coil spring hooking portion 5b of the boss portion 5a. FIG.
FIG. 4 is a perspective view of an example of a state where the coil spring 6 is mounted.
【００１６】[0016]
【発明の効果】以上のように本発明によれば、金型内で
ボディ５の成形完了後、ボディ５の取り出し時に、コイ
ルバネ６をボディ５のボス部５ａに組込んで取り出すよ
うにしているため、従来のようにコイルバネ６を組込む
ためのロボット設備が不要となり、設備費のコストダウ
ンを達成し得る。また、組立工程が簡略化でき、かつ容
易にコイルバネ６をボディ５に組込むことができる、と
いった効果がある。As described above, according to the present invention, the coil spring 6 is assembled into the boss 5a of the body 5 and taken out when the body 5 is taken out after the molding of the body 5 is completed in the mold. Therefore, there is no need for a robot facility for incorporating the coil spring 6 as in the related art, and a reduction in facility costs can be achieved. In addition, there is an effect that the assembling process can be simplified and the coil spring 6 can be easily incorporated into the body 5.
【図１】本発明にかかる成形方法の一実施例であって、
成形品であるボディにコイルバネが組込まれて金型から
取り出された状態の断面図を示す。FIG. 1 is an embodiment of a molding method according to the present invention,
FIG. 3 is a cross-sectional view showing a state where a coil spring is incorporated into a molded body and is taken out of a mold.
【図２】本発明の一実施例で、ボディ成形前の金型の要
部断面図を示す。FIG. 2 is a cross-sectional view of a main part of a mold before molding a body according to an embodiment of the present invention.
【図３】図２中のＡ部分の拡大図。FIG. 3 is an enlarged view of a portion A in FIG. 2;
【図４】図３においてａ方向から見た説明図。FIG. 4 is an explanatory diagram viewed from a direction in FIG. 3;
【図５】本発明の成形方法の工程図。FIG. 5 is a process chart of the molding method of the present invention.
【図６】本発明の型開き工程の説明図。FIG. 6 is an explanatory view of a mold opening step of the present invention.
【図７】コイルバネをボディに組込んだ一例の斜視図を
示す。FIG. 7 is a perspective view of an example in which a coil spring is incorporated in a body.
【図８】従来例の金型の要部断面図。FIG. 8 is a sectional view of a main part of a conventional mold.
【図９】従来の成形方法の工程図。FIG. 9 is a process chart of a conventional molding method.
【図１０】コイルバネの側断面図。FIG. 10 is a side sectional view of a coil spring.
【図１１】従来の成形方法によってボディにコイルバネ
を組込んだ側断面図。FIG. 11 is a side sectional view in which a coil spring is incorporated in a body by a conventional molding method.
１ 固定側 ２ ゲート ３ 可動側 ３ａ コイルバネ挿入口 ４ キャビティ ５ ボディ ５ａ ボス部 ６ コイルバネ ７ 突き出しピン ８ 突き出しピン ９ ガイド穴 DESCRIPTION OF SYMBOLS 1 Fixed side 2 Gate 3 Movable side 3a Coil spring insertion port 4 Cavity 5 Body 5a Boss part 6 Coil spring 7 Projection pin 8 Projection pin 9 Guide hole
Claims (1)
方法において、外径がコイルバネの内径と略同じ外径の
ボス部を、成形品の成形と同時に形成する金型を用い、
前記ボス部に設けた突き出しピンを第１の所定位置に配
してキャビティに樹脂を注入してボス部付きの成形品を
成形する工程と、ついで、前記金型内に設けられた前記
突き出しピンを後退させてこの突き出しピン上にコイル
バネを配し、ボス部に対向配置する工程と、型開きの場
合、前記突き出しピンを突き出して成形品の取り出しと
同時にボス部にコイルバネを装着する工程と、により成
形品とコイルバネとを一体化することを特徴とした成形
方法。1. A molding method for integrating a molded product and a coil spring, wherein a boss having an outer diameter substantially equal to the inner diameter of the coil spring is formed at the same time as molding of the molded product, using a mold.
Disposing a protrusion pin provided on the boss portion at a first predetermined position, injecting resin into a cavity to form a molded product with a boss portion, and then forming the protrusion pin provided in the mold. Retracting the coil spring on the protruding pin and disposing the coil spring on the boss portion, and in the case of opening the mold, mounting the coil spring on the boss portion simultaneously with protruding the protruding pin and taking out a molded product, A molding method characterized in that a molded product and a coil spring are integrated with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3435192A JP2793927B2 (en) | 1992-01-24 | 1992-01-24 | Molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3435192A JP2793927B2 (en) | 1992-01-24 | 1992-01-24 | Molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05200795A JPH05200795A (en) | 1993-08-10 |
| JP2793927B2 true JP2793927B2 (en) | 1998-09-03 |
Family
ID=12411735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3435192A Expired - Fee Related JP2793927B2 (en) | 1992-01-24 | 1992-01-24 | Molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2793927B2 (en) |
-
1992
- 1992-01-24 JP JP3435192A patent/JP2793927B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05200795A (en) | 1993-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |