JPH11262942A - Mold clamping device for injection mold - Google Patents
Mold clamping device for injection moldInfo
- Publication number
- JPH11262942A JPH11262942A JP6751698A JP6751698A JPH11262942A JP H11262942 A JPH11262942 A JP H11262942A JP 6751698 A JP6751698 A JP 6751698A JP 6751698 A JP6751698 A JP 6751698A JP H11262942 A JPH11262942 A JP H11262942A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- arm
- fixed
- mold clamping
- plate
- 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
【０００１】[0001]
【発明の属する技術分野】本発明は射出成形金型に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection mold.
【０００２】[0002]
【従来の技術】図３に一般的な３プレートタイプの射出
成形金型を示す。６は固定側取付板、７はランナー払い
板、８は固定側型板、９は可動側、１０はガイドピン、
１１はガイドブッシュである。2. Description of the Related Art FIG. 3 shows a general three-plate injection mold. 6 is a fixed side mounting plate, 7 is a runner wiping plate, 8 is a fixed side mold plate, 9 is a movable side, 10 is a guide pin,
11 is a guide bush.
【０００３】以上のように構成された３プレート金型で
は、型締め工程でガイドピン１０がガイドブッシュ１１
に入り、この２部品１０，１１に案内されて固定側型板
８と可動側９は閉じる。[0003] In the three-plate mold constructed as described above, the guide pin 10 is moved to the guide bush 11 in the mold clamping step.
The stationary side template 8 and the movable side 9 are closed by being guided by these two parts 10 and 11.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記の構
成では、滑らかに型締めさせるために図４に示すように
ガイドピン１０とガイドブッシュ１１の間にクリアラン
ス（Ｄ−ｄ）を設けており、このクリアランスの分だけ
可動側と固定側型板が傾く可能性があり、そのため可動
側と固定側の立て食い切り部分には型板の傾く角度以上
の食い切り勾配を設けなくてはならず、食い切り角度θ
には θ ≧ tan（（Ｄ−ｄ）／Ｌ）） が必要で、垂直な食い切りができない、製品設計上の制
約になるなどの問題点を有している。However, in the above configuration, a clearance (D-d) is provided between the guide pin 10 and the guide bush 11 as shown in FIG. There is a possibility that the movable side and the fixed side mold plate may be tilted by the clearance, so that the upright cutting portion on the movable side and the fixed side must be provided with a cutting angle greater than the inclination angle of the template, and the cutting angle θ
Requires θ ≧ tan ((D−d) / L)), which causes problems such as the inability to make vertical cuts and restrictions on product design.
【０００５】またこの角度を小さくするために、ガイド
ピンとガイドブッシュのクリアランスを小さくすると滑
らかに型締めできない、無理に型締めを行うとガイドピ
ンとガイドブッシュが焼き付くなどの問題を発生してい
る。If the clearance between the guide pin and the guide bush is reduced to reduce the angle, the mold cannot be clamped smoothly. If the mold is forcibly clamped, the guide pin and the guide bush will seize.
【０００６】本発明は、ガイドピンとガイドブッシュの
クリアランスを小さくする事なく、型板の傾きを防止
し、食い切り角度を成形機のプラテン平行精度まで小さ
くできる射出成形金型用型締め装置を提供することを目
的とする。The present invention provides a mold clamping device for an injection molding die, which can prevent the inclination of a mold plate and reduce the cutting angle to the platen parallel accuracy of a molding machine without reducing the clearance between a guide pin and a guide bush. The purpose is to:
【０００７】[0007]
【課題を解決するための手段】本発明の技術的手段は、
型締め工程時に固定側取付板と固定側型板をアームによ
り拘束し、固定側型板が傾くことを防止するものであ
る。Means for Solving the Problems The technical means of the present invention is as follows.
The fixed side mounting plate and the fixed side template are restrained by the arm at the time of the mold clamping step to prevent the fixed side template from tilting.
【０００８】この発明によれば、食い切り角度を成形機
のプラテン平行精度まで小さくすることができる。According to the present invention, the cutting angle can be reduced to the platen parallel accuracy of the molding machine.
【０００９】[0009]
【発明の実施の形態】本発明の射出成形金型用型締め装
置は、金型の固定側取付板に回転可能に取り付けられ内
側に突起を設けたアームと、前記アームを固定側型板に
押しつける方向に付勢手段と、金型可動側に取り付けら
れ前記アームを外側に持ち上げる向きに斜面を有するリ
リースバーとを設けたことを特徴とする。BEST MODE FOR CARRYING OUT THE INVENTION A mold clamping apparatus for an injection mold according to the present invention comprises: an arm rotatably mounted on a fixed side mounting plate of a mold and having a projection on the inside; A biasing means is provided in a pressing direction, and a release bar attached to the movable side of the mold and having a slope in a direction to lift the arm outward is provided.
【００１０】この構成によると、金型全開時に前記付勢
手段の作用によりアームの突起が固定側型板のランナー
パート側に入り込み、そのままの状態で型締めを行うた
め、固定側型板は摺動抵抗などにより傾こうとしてもア
ームが背後で突っ張って拘束しているため傾くことがで
きない。このまま型締めを行い製品パートが閉じる直前
にリリースバーがアームを持ち上げて固定側型板からア
ームを外すことで、残りのランナーパートが閉じられる
ようになり型締めを完了する。According to this structure, when the mold is fully opened, the projection of the arm enters the runner part side of the fixed mold plate by the action of the urging means, and the mold is clamped as it is, so that the fixed mold plate slides. Even if the arm tilts due to dynamic resistance or the like, it cannot be tilted because the arm stretches behind and is restrained. Immediately before closing the product part, the release bar raises the arm and removes the arm from the fixed side mold plate just before the product part closes, so that the remaining runner parts are closed and the mold clamping is completed.
【００１１】以下、本発明の実施の形態を図１と図２に
基づいて説明する。 （実施の形態１）図２（ａ）（ｂ）は金型全開状態を示
し、図１（ａ）（ｂ）は金型型締め工程の途中段階で製
品パートが閉じる直前の状態を示している。An embodiment of the present invention will be described below with reference to FIGS. (Embodiment 1) FIGS. 2 (a) and 2 (b) show a mold fully opened state, and FIGS. 1 (a) and 1 (b) show a state just before a product part is closed in a middle of a mold clamping process. I have.
【００１２】図２においてアーム１の基端部は金型に軸
２で回動可能に支持されており、付勢手段としてのスプ
リング３によりアーム１の先端部を固定側型板４に押し
付けられ、アーム１の内側についている突起１ａが固定
側型板４のランナーパート面に当接している。アーム１
の先端部には横方向に突出したピン１ｂが設けられてい
る。In FIG. 2, the base end of the arm 1 is rotatably supported on a mold by a shaft 2. The distal end of the arm 1 is pressed against a fixed mold plate 4 by a spring 3 as a biasing means. The protrusion 1a on the inside of the arm 1 is in contact with the runner part surface of the fixed mold plate 4. Arm 1
Is provided with a pin 1b protruding in the lateral direction.
【００１３】金型の可動側９にはリリースバー５が前記
アーム１に対応して取り付けられている。リリースバー
５の先端には、傾斜部５ａが形成されている。なお、図
１と図２ではアーム１とリリースバー５のペアーが１組
だけしか図示されていないが、実際には金型の２ヵ所以
上に複数組のアーム１とリリースバー５のペアーが取り
付けられている。A release bar 5 is attached to the movable side 9 of the mold so as to correspond to the arm 1. At the tip of the release bar 5, an inclined portion 5a is formed. Although only one pair of the arm 1 and the release bar 5 is shown in FIGS. 1 and 2, a plurality of pairs of the arm 1 and the release bar 5 are actually attached to two or more locations of the mold. Have been.
【００１４】この図２（ａ）（ｂ）に示す状態で型締め
工程に入るので、固定側型板４はアーム１により拘束さ
れ傾くことなく製品パートが以下のように閉じていく。
型締め工程の途中段階では図１（ａ）（ｂ）に示すよう
に、各アーム１の先端部のピン１ｂが対向するリリース
バー５の傾斜部５ａに乗り上げて各アーム１がスプリン
グ３の付勢に抗して押し上げられ、これによってアーム
１の突起１ａと固定側型板４のランナーパート面との当
接が解除されて固定側型板４の拘束が解除され、これに
より製品パートに続いてランナーパートを閉じることが
でき型締めを完了する。Since the mold clamping process is started in the state shown in FIGS. 2A and 2B, the fixed-side mold plate 4 is restrained by the arm 1 and the product part is closed without tilting as follows.
In the middle of the mold clamping process, as shown in FIGS. 1A and 1B, the pin 1 b at the tip of each arm 1 rides on the inclined portion 5 a of the release bar 5 facing each other, and each arm 1 is attached with the spring 3. This forces the projection 1a of the arm 1 into contact with the runner part surface of the fixed mold plate 4 to release the restraint of the fixed mold plate 4, thereby releasing the product part. The runner part can be closed to complete the mold clamping.
【００１５】なお、上記の実施の形態では、付勢手段と
してスプリングを使用したが、ゴム等のその他の弾性体
を用いて構成することもできる。In the above embodiment, a spring is used as the biasing means, but it may be constructed by using another elastic body such as rubber.
【００１６】[0016]
【発明の効果】以上のように本発明のよれば、金型の固
定側取付板に回転可能に取り付けられ内側に突起を設け
たアームと、前記アームを固定側型板に押しつける方向
に付勢する付勢手段と、金型可動側に取り付けられ前記
アームを外側に持ち上げる向きに斜面を有するリリース
バーとを設けたため、ガイドピンとガイドブッシュのク
リアランスを小さくする事なく、型板の傾きを防止し、
金型の食い切り角度を成形機のプラテン平行精度まで小
さくすることができ、製品設計の自由度が増すという効
果が得られる。As described above, according to the present invention, an arm rotatably mounted on a fixed-side mounting plate of a mold and having a projection on the inner side, and a biasing force in a direction for pressing the arm against the fixed-side template. And a release bar attached to the movable side of the mold and having a slope in a direction to lift the arm outward, so that the clearance between the guide pin and the guide bush is reduced, and the inclination of the mold plate is prevented. ,
The cutting angle of the mold can be reduced to the platen parallel accuracy of the molding machine, and the effect of increasing the degree of freedom in product design can be obtained.
【図１】本発明の射出成形金型用型締め装置の型締め工
程の途中段階で製品パートが閉じる直前の側面図と平面
図FIG. 1 is a side view and a plan view of a mold clamping apparatus for an injection mold according to the present invention immediately before a product part is closed during a mold clamping process.
【図２】本発明の射出成形金型用型締め装置の金型全開
状態の側面図と平面図FIG. 2 is a side view and a plan view of the mold clamping device for an injection molding mold according to the present invention in a fully opened state of the mold.
【図３】一般的な３プレートタイプの射出成形金型構造
を示す図FIG. 3 is a view showing a general three-plate type injection molding die structure;
【図４】図３の要部の拡大図FIG. 4 is an enlarged view of a main part of FIG. 3;
１ アーム １ａ 突起 １ｂ ピン ２ 軸 ３ スプリング ４ 固定側型板 ５ リリースバー ５ａ 傾斜部 ６ 固定側取付板 ７ ランナー払い板 ８ 固定側型板 ９ 可動側 １０ ガイドピン １１ ガイドブッシュ DESCRIPTION OF SYMBOLS 1 Arm 1a Projection 1b Pin 2 Axis 3 Spring 4 Fixed mold plate 5 Release bar 5a Inclined portion 6 Fixed mounting plate 7 Runner wiping plate 8 Fixed mold plate 9 Movable side 10 Guide pin 11 Guide bush
Claims (3)
られ内側に突起を設けたアームと、 前記アームを固定側型板に押しつける方向に付勢する付
勢手段と、 金型可動側に取り付けられ前記アームを外側に持ち上げ
る向きに斜面を有するリリースバーとを設けた射出成形
金型用型締め装置。1. An arm rotatably mounted on a fixed-side mounting plate of a mold and having an inner side provided with a projection, biasing means for biasing the arm in a direction of pressing the arm against the fixed-side mold plate, and a movable mold side. And a release bar having a slope inclined in a direction to lift the arm outward.
取り付けた請求項１記載の射出成形金型用型締め装置。2. The mold clamping apparatus according to claim 1, wherein the arm and the release bar are attached to the mold at two or more places.
弾性体を用いた請求項１記載の射出成形金型用型締め装
置。3. The mold clamping apparatus according to claim 1, wherein an elastic body such as a spring or rubber is used as the urging means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06751698A JP3922791B2 (en) | 1998-03-18 | 1998-03-18 | Clamping method for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06751698A JP3922791B2 (en) | 1998-03-18 | 1998-03-18 | Clamping method for injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11262942A true JPH11262942A (en) | 1999-09-28 |
| JP3922791B2 JP3922791B2 (en) | 2007-05-30 |
Family
ID=13347238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06751698A Expired - Lifetime JP3922791B2 (en) | 1998-03-18 | 1998-03-18 | Clamping method for injection mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3922791B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116200A (en) * | 2017-06-08 | 2017-09-01 | 佛山市南海奔达模具有限公司 | Ejector retainner plate stopping means and its mould of application |
| CN112222376A (en) * | 2020-12-14 | 2021-01-15 | 宁波星源卓镁技术股份有限公司 | Production mold for producing central control framework |
-
1998
- 1998-03-18 JP JP06751698A patent/JP3922791B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116200A (en) * | 2017-06-08 | 2017-09-01 | 佛山市南海奔达模具有限公司 | Ejector retainner plate stopping means and its mould of application |
| CN107116200B (en) * | 2017-06-08 | 2023-02-24 | 佛山市南海奔达模具有限公司 | Thimble board stop device and mould of using thereof |
| CN112222376A (en) * | 2020-12-14 | 2021-01-15 | 宁波星源卓镁技术股份有限公司 | Production mold for producing central control framework |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3922791B2 (en) | 2007-05-30 |
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