JP2584138Y2 - Mold clamping device - Google Patents
Mold clamping deviceInfo
- Publication number
- JP2584138Y2 JP2584138Y2 JP1991093035U JP9303591U JP2584138Y2 JP 2584138 Y2 JP2584138 Y2 JP 2584138Y2 JP 1991093035 U JP1991093035 U JP 1991093035U JP 9303591 U JP9303591 U JP 9303591U JP 2584138 Y2 JP2584138 Y2 JP 2584138Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- base
- die
- base plate
- fixed
- 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 - Lifetime
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、樹脂成形品などを成形
する成形型の型締め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 mold clamping device for a molding die for molding a resin molded product or the like.
【０００２】[0002]
【従来の技術】近時、ＦＲＰ（ガラス繊維強化樹脂）製
品が自動車の外板等の各種成形品に使用されるようにな
った。このような繊維強化樹脂成形品の成形は、例えば
エンジンフ−ドの場合には、成形品の剛性、強度等を確
保するため、ガラス繊維等の強化用繊維を複数枚重ねて
予めマット状に成形し、このガラス繊維マットを金型に
セットし、型内に溶融樹脂を注入して成形するレジント
ランスファ成形（以下、ＲＴＭという）が採用されてい
る。ＲＴＭに使用する成形型では、樹脂の注入圧力が低
く、樹脂型や電鋳殻を使用した軽量の型が使用されてい
る。ＲＴＭでは樹脂の注入圧力が低く、自動車用外板の
場合、必要な型締め力は通常数十トンであるが、成形サ
イクルは数十分を要する。ＲＴＭの成形型の開閉は、一
般に上型をホイストで吊って昇降させ、型締め力は、型
の外側に取付けたボルト、ナットで固定するクランプ式
や、油圧シリンダによるピン−ブロック押込み式などが
採用されている。また、既製のプレス機を使用して型の
開閉と型締め力を発生させるようにしたものもある。2. Description of the Related Art In recent years, FRP (glass fiber reinforced resin) products have been used for various molded products such as outer panels of automobiles. In molding such a fiber reinforced resin molded product, for example, in the case of an engine hood, a plurality of reinforcing fibers such as glass fibers are stacked in a mat shape in advance in order to secure the rigidity and strength of the molded product. Resin transfer molding (hereinafter referred to as RTM) in which the glass fiber mat is molded, the glass fiber mat is set in a mold, and a molten resin is injected into the mold to form the mold. In a mold used for RTM, a resin injection pressure is low, and a resin mold or a lightweight mold using an electroformed shell is used. In the case of the RTM, the injection pressure of the resin is low, and in the case of an automobile outer panel, the required mold clamping force is usually several tens tons, but the molding cycle requires several tens of minutes. The opening and closing of the RTM mold is generally performed by lifting and lowering the upper mold with a hoist. The mold clamping force can be clamped with bolts and nuts attached to the outside of the mold or pin-block push-in with hydraulic cylinder. Has been adopted. In addition, there is a type in which a ready-made press machine is used to open and close the mold and generate a mold clamping force.
【０００３】実開昭５６−４４１１５号公報には、上型
と下型とを液圧シリンダで連結して昇降させるプレスに
おいて、ピストンロッドにスプロケットとチエーンで駆
動するウオームにより昇降させる機構を設けたものが記
載されている。また、実開昭６４−１９１０号公報に
は、下型を支持するベースプレートとフレームとの間に
エアバックを介装し、空気圧によりエアバックを膨張さ
せて型締めする金型のクランプ装置が記載されている。In Japanese Utility Model Laid-Open Publication No. Sho 56-44115, in a press in which an upper die and a lower die are connected by a hydraulic cylinder to raise and lower, a mechanism for raising and lowering a piston rod by a worm driven by a sprocket and a chain is provided. Things are listed. Further, Japanese Utility Model Application Laid-Open No. 64-1910 discloses a mold clamping device in which an airbag is interposed between a base plate supporting a lower mold and a frame, and the airbag is inflated by air pressure to clamp the mold. Have been.
【０００４】[0004]
【考案が解決しようとする課題】既製のプレス機は、装
置が高価で成形サイクルが長いＲＴＭの成形に使用する
のは極めて不経済となる。前記実開昭５６−４４１１５
号公報に記載されたプレスも、流体シリンダを使用する
ので装置が高価となる。前記実開昭６４−１９１０号公
報に記載された金型は、上型と下型との型合わせが困難
で、ＲＴＭによる成形には適さない。[0003] Off-the-shelf presses are extremely uneconomical to use for forming RTMs, which have expensive equipment and long molding cycles. 56-44115
The press described in the publication also uses a fluid cylinder, so that the apparatus becomes expensive. The mold described in Japanese Utility Model Application Laid-Open No. 64-1910 is difficult to match an upper mold and a lower mold, and is not suitable for molding by RTM.
【０００５】本考案は、上記の問題点を解決し、ＲＴＭ
のような成形圧力が低く、成形サイクルの長い成形型の
型開閉と型締め装置を簡易な構造で構成し、装置全体を
安価に製作できるようにし、設備投資の軽減を図ること
を目的とするものである。[0005] The present invention solves the above-mentioned problems and provides an RTM.
The purpose of the present invention is to configure the mold opening and closing and mold clamping device of a molding die having a low molding pressure and a long molding cycle with a simple structure so that the entire device can be manufactured at low cost and reduce capital investment. Things.
【０００６】[0006]
【課題を解決するための手段】本考案は、ベースに立設
したコラムで支持される上受台に型開き位置から型合わ
せ位置までの昇降のみを行う上型を取付けた上型架台の
昇降機構を設置し、下型を前記ベースに固定した受台で
支持されるベースプレート上に設置し、該ベースプレー
トと前記ベース間に空気ばねを介装すると共に、前記上
型架台と前記ベースに固定した受台とにそれぞれ支柱を
配設し、前記ト型と前記下型とを型合わせしたときに前
記両支柱を互いに締付け固定可能に構成し、前記両支柱
を互いに締付け固定した状態において前記空気ばねに送
気する手段を設けたことを特徴とする成形型の型締め装
置である。Means for Solving the Problems The present invention is provided on a base.
Of the upper die base with the upper die that only moves up and down from the mold opening position to the mold matching position
In installing the lifting mechanism, to fix the lower mold on the base cradle
Place on a supported base plate and
And an air spring between the base and the base.
A column is provided on each of a mold base and a receiving table fixed to the base, and when the mold and the lower die are matched, the columns are configured to be fastened and fixed to each other. A means for feeding air to the air spring in a state where the air spring is clamped and fixed is provided.
【０００７】[0007]
【作用】上型をその昇降機機構により降下させて空気ば
ねを介してベースに固定した受台で支持されるベースプ
レート上に設置された下型と型合わせし、上型架台とベ
ースに固定した受台とにそれぞれ設けた上下の支柱同士
を固定する。次ぎに、空気ばねに送気するとベースプレ
ートと共に下型が上昇し、上型は上下の支柱でベースに
固定されているので、空気ばねの力で型締め力が発生
し、その反力はベースで受ける。成形後、上下支柱の連
結を外し、空気ばねの空気を抜くと、下型は自重で降下
する。昇降装置により上型を吊り上げて型開きする。The upper die is lowered by the elevator mechanism, and the base is supported by a receiving base fixed to the base via an air spring.
Aligned the installed lower mold and the mold on the rate, the upper die mount and base
The upper and lower columns respectively provided on the base fixed to the base are fixed. Next, when insufflating the air spring Besupure
The lower mold rises with the heat, and the upper mold becomes the base with the upper and lower struts
Since it is fixed , a mold clamping force is generated by the force of the air spring, and the reaction force is received by the base . After molding, when the upper and lower columns are disconnected and the air from the air spring is evacuated, the lower mold descends by its own weight. The upper mold is lifted by the lifting device to open the mold.
【０００８】[0008]
【実施例】図１は本考案の実施例の正面図、図２は一方
のコラムを除いた側面図である。ベース１に２本のコラ
ム２，２で上架台３を取付け、この上架台３に上型１０
を取付けた上型架台６の昇降装置を設置する。この昇降
装置は、公知の揚貨装置が利用でき、図には駆動用モー
ター４で往復駆動されるチエーン５で上架台６のガイド
７を吊り下げ、ガイド７がコラム２，２にそれぞれ設置
したガイドレール８，８で案内されて昇降するものが示
してある。上型架台６には、その四隅に上支柱９を固定
する。一方、下型１１をベースプレート１２に取付け、
このベースプレート１２とベース１との間に空気バネ１
３を設置し、ベース１には下型の周りの四隅に二股の下
支柱１４を固定し、ベースプレート１２の受け台１５を
設ける。1 is a front view of an embodiment of the present invention, and FIG. 2 is a side view excluding one column. An upper frame 3 is attached to a base 1 with two columns 2 and 2, and an upper die 10 is mounted on the upper frame 3.
The lifting device of the upper frame 6 to which is attached is installed. This lifting device can use a well-known lifting device. In the figure, a guide 7 of an upper gantry 6 is suspended by a chain 5 reciprocally driven by a driving motor 4, and the guide 7 is installed on columns 2 and 2, respectively. One that is guided by guide rails 8, 8 and moves up and down is shown. The upper support 6 is fixed to the four corners of the upper frame 6. On the other hand, the lower mold 11 is attached to the base plate 12,
The air spring 1 is provided between the base plate 12 and the base 1.
3, the lower leg 14 is fixed to the base 1 at the four corners around the lower die, and the receiving base 15 of the base plate 12 is provided.
【０００９】成形前に上型１０を上昇させた図示の状態
とし、駆動モーター４を作動してチエーン５を繰り出す
と、上型１０を支持した上型架台６はそのガイド７がガ
イドレール８に案内されて降下し、上型１０が下型１１
に型合わせされる。ＲＴＭの成形型には、型自体に位置
決めが設けられているので、上型架台６のガイド７はロ
リーラーガイドのような低精度のガイド機構で差し支え
ない。型合わせした状態では、図３に示すように、上支
柱９が下支柱１４の間にはまり込む。上下の各支柱に
は、それぞれ嵌合孔９ａ，１４ａが設けられており、こ
れらの孔に楔１６を挿通して両者を固定する。空気ばね
１３に送気するとベースプレート１２が上昇し、上型１
０は上支柱９と下支柱１４でベース１に支持されている
ので、空気ばね１３の力で型締め力が発生し、成形型に
必要な型締め力が得られ、その反力はベース１で受ける
ので、コラム２にはなんら影響しない。成形後、空気ば
ね１２の空気を少し抜いてベースプレート１２を若干降
下させてから楔１６を外し、更に、空気ばね１３の空気
を抜くと、下型１１は更にベースプレート１２とともに
降下して型開きし、受け台１５に支持される。昇降装置
により上型１０を吊り上げて型開きし、成形品を取出
す。When the upper die 10 is raised before molding and the chain 5 is fed out by operating the drive motor 4, the upper die base 6 supporting the upper die 10 has its guide 7 on the guide rail 8. It is guided and descends, and the upper die 10 becomes the lower die 11
It is matched to. Since the positioning die is provided in the RTM molding die itself, the guide 7 of the upper die base 6 may be a low-precision guide mechanism such as a roller guide. In the state where the molds are matched, the upper support 9 fits between the lower supports 14 as shown in FIG. Fitting holes 9a and 14a are provided in the upper and lower columns, respectively, and wedges 16 are inserted into these holes to fix them. When air is supplied to the air spring 13, the base plate 12 rises,
Since 0 is supported on the base 1 by the upper support 9 and the lower support 14, a mold clamping force is generated by the force of the air spring 13 and a mold clamping force required for the molding die is obtained. Column 2 has no effect. After the molding, the air of the air spring 12 is slightly released to lower the base plate 12 slightly, and then the wedge 16 is removed. Further, when the air of the air spring 13 is released, the lower mold 11 further descends together with the base plate 12 to open the mold. , Supported by the cradle 15. The upper die 10 is lifted by the lifting device to open the mold, and the molded product is taken out.
【００１０】上型の昇降装置は、上型の昇降作用だけを
分担し、型締めには無関係となるので、その案内機構は
低精度の機構ですみ、また、型締め力がコラムなどに伝
わらないので、上型の昇降機構全体の剛性が低くてす
み、装置を安価に製作することが可能となる。[0010] Since the upper-type lifting device shares only the upper-lowering operation of the upper type and is not related to the mold clamping, the guide mechanism needs to be a low-precision mechanism, and the clamping force is transmitted to the column and the like. Therefore, the rigidity of the entire upper / lower elevating mechanism can be low, and the apparatus can be manufactured at low cost.
【００１１】以上の実施例では、ＲＴＭの成形型につい
て説明したが、本考案は、型が軽量で成形圧力の低い他
の成形方式の成形型にも適用できる。In the above embodiment, the RTM mold has been described. However, the present invention can be applied to a mold having another molding method which is lightweight and has a low molding pressure.
【００１２】[0012]
【考案の効果】本考案は、高剛性な架台や高精度のガイ
ド機構の必要がなく、型の開閉及び型締め装置を簡易な
構成とすることができ、装置を安価に製作できて設備投
資の軽減が図れる。[Effect of the Invention] The present invention eliminates the need for a high-rigidity gantry and a high-precision guide mechanism, allows simple construction of a mold opening / closing and mold clamping device, makes it possible to manufacture the device at low cost, and makes capital investment. Can be reduced.
【図１】本考案の一実施例の正面図。FIG. 1 is a front view of an embodiment of the present invention.
【図２】図１のコラムを除いた側面図。FIG. 2 is a side view excluding a column in FIG. 1;
【図３】図１の要部の拡大図。FIG. 3 is an enlarged view of a main part of FIG. 1;
１ ベース ２ コラム ３ 上架台 ４ 駆
動モーター ５ チエーン ６ 上型架台 ７ ガイド ８ ガ
イドレール ９ 上支柱 １０ 上型 １１ 下型 １２ ベ
ースプレート １３ 空気ばね １４ 下支柱Reference Signs List 1 base 2 column 3 upper mount 4 drive motor 5 chain 6 upper mount 7 guide 8 guide rail 9 upper support 10 upper support 11 lower support 12 base plate 13 air spring 14 lower support
Claims (1)
受台に型開き位置から型合わせ位置までの昇降のみを行
う上型を取付けた上型架台の昇降機構を設置し、下型を
前記ベースに固定した受台で支持されるベースプレート
上に設置し、該ベースプレートと前記ベース間に空気ば
ねを介装すると共に、前記上型架台と前記ベースに固定
した受台とにそれぞれ支柱を配設し、前記上型と前記下
型とを型合わせしたときに前記両支柱を互いに締付け固
定可能に構成し、前記両支柱を互いに締付け固定した状
態において前記空気ばねに送気する手段を設けたことを
特徴とする成形型の型締め装置。(1) supported by a column erected on a base.
Only lift from mold opening position to the mold alignment the lifting mechanism of the upper die mount mounted upper die is placed to perform the cradle, the lower die
Base plate supported by a pedestal fixed to the base
Installed on the base plate and the air gap between the base plate and the base.
With a sprain and fixed to the upper frame and the base
And the support is arranged on each of the receiving pedestals, and when the upper mold and the lower mold are matched, the two supports are configured to be fastened and fixed to each other. A mold clamping device for a molding die, comprising a means for supplying air to a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991093035U JP2584138Y2 (en) | 1991-09-27 | 1991-09-27 | Mold clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991093035U JP2584138Y2 (en) | 1991-09-27 | 1991-09-27 | Mold clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0529713U JPH0529713U (en) | 1993-04-20 |
| JP2584138Y2 true JP2584138Y2 (en) | 1998-10-30 |
Family
ID=14071242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991093035U Expired - Lifetime JP2584138Y2 (en) | 1991-09-27 | 1991-09-27 | Mold clamping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2584138Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4318385B2 (en) * | 2000-06-05 | 2009-08-19 | Ｎｅｃトーキン株式会社 | Clamping device |
| CN104309051A (en) * | 2014-11-18 | 2015-01-28 | 滁州市精华模具制造有限公司 | Mold opening mechanism for upper mold of door body foaming mold |
| CN108772986A (en) * | 2018-06-29 | 2018-11-09 | 苏州永为客模架智造股份有限公司 | A kind of clamping of large size mould bases |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054972Y2 (en) * | 1987-06-22 | 1993-02-09 | ||
| JPH0726018Y2 (en) * | 1989-04-28 | 1995-06-14 | エヌオーケー株式会社 | Compression mold |
-
1991
- 1991-09-27 JP JP1991093035U patent/JP2584138Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0529713U (en) | 1993-04-20 |
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