JP2007253552A - Mold clamping device of injection molding machine - Google Patents

Mold clamping device of injection molding machine Download PDF

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JP2007253552A
JP2007253552A JP2006083601A JP2006083601A JP2007253552A JP 2007253552 A JP2007253552 A JP 2007253552A JP 2006083601 A JP2006083601 A JP 2006083601A JP 2006083601 A JP2006083601 A JP 2006083601A JP 2007253552 A JP2007253552 A JP 2007253552A
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movable
mold
mounting surface
pin hole
platen
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JP4107509B2 (en
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Hiromasa Uesono
裕正 上園
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Japan Steel Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To suppress unevenness of a molded article thickness to the minimum even in the case of molding many molded articles. <P>SOLUTION: A hollow hole 9 is established in parallel in the penetration direction of a link pin hole 7 at the position of a movable metallic mold clamping face 4a side on a straight line which intersects perpendicularly with the movable metallic mold clamping face 4a while a toggle link mechanism 5 passes along the center of the link pin hole 7 that the toggle link mechanism 5 is connected to a movable board 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、金型を取り付けるための固定盤と可動盤とを有し、トグルリンク機構により可動盤に型締力を伝達する射出成形機の型締装置に関するものである。   The present invention relates to a mold clamping device of an injection molding machine having a fixed plate and a movable plate for attaching a mold, and transmitting a mold clamping force to the movable plate by a toggle link mechanism.

従来の射出成形機の型締装置として、図３及び図４に示す従来例１（例えば、特許文献１参照）、図５及び図６に示す従来例２などが挙げられる。従来例１及び従来例２ともに、固定金型１を取り付けるための固定金型取付面２ａを有する固定盤２と、可動金型３を取り付けるための可動金型取付面４ａを有する可動盤４と、可動盤４の可動金型取付面４ａとは反対側の面４ｂから型締力を伝達するトグルリンク機構５と、を備えており、可動盤４はリンクピン穴７が形成されたトグルリンク接続部６を有し、リンクピン穴７にトグルリンク機構５が接続される。また、従来例１には、可動盤４の可動金型取付面４ａ寄りの側縁部に溝８が形成されている。   Examples of a conventional mold clamping device of an injection molding machine include a conventional example 1 (see, for example, Patent Document 1) shown in FIGS. 3 and 4, a conventional example 2 shown in FIGS. 5 and 6, and the like. Both Conventional Example 1 and Conventional Example 2 have a fixed platen 2 having a fixed mold attachment surface 2a for attaching the fixed die 1, and a movable platen 4 having a movable mold attachment surface 4a for attaching the movable die 3. A toggle link mechanism 5 for transmitting a clamping force from a surface 4b opposite to the movable mold mounting surface 4a of the movable platen 4, and the movable platen 4 is a toggle link in which a link pin hole 7 is formed. The toggle link mechanism 5 is connected to the link pin hole 7. Further, in Conventional Example 1, a groove 8 is formed in a side edge portion of the movable platen 4 near the movable mold mounting surface 4a.

次に、従来例の作用について説明する。
従来例１及び２共に、金型１及び３を型締する際、トグルリンク機構５を駆動して可動盤４を固定盤２方向へ前進させ、固定金型１と可動金型３とを接触させ、型締する。このときの型締力Ｆは、トグルリンク機構５からリンクピン穴７を介して可動盤４及び可動金型３へと伝達される。 Next, the operation of the conventional example will be described.
In both the conventional examples 1 and 2, when the molds 1 and 3 are clamped, the toggle link mechanism 5 is driven to move the movable platen 4 toward the fixed platen 2 so that the fixed die 1 and the movable die 3 are brought into contact with each other. And clamp. The mold clamping force F at this time is transmitted from the toggle link mechanism 5 to the movable platen 4 and the movable mold 3 through the link pin hole 7.

この状態において、図６に示すように、従来例２の構造の場合、可動金型３から可動盤４への反力ｆは可動盤４の可動金型取付面４ａに、ほぼ均一に作用し、トグルリンク機構５から可動盤４へ伝えられる型締力Ｆは、リンクピン穴７が可動盤４の側縁に近い部分に設けられているため、リンクピン穴７のある可動盤４の側縁部に多く作用する。このため、可動盤４に曲げ応力が作用し、可動盤中央部のたわみ量δ1が増大する。 In this state, as shown in FIG. 6, in the case of the structure of the conventional example 2, the reaction force f from the movable mold 3 to the movable platen 4 acts on the movable die mounting surface 4a of the movable platen 4 almost uniformly. The mold clamping force F transmitted from the toggle link mechanism 5 to the movable platen 4 is provided at a portion where the link pin hole 7 is close to the side edge of the movable platen 4, so that the side of the movable platen 4 with the link pin hole 7 is provided. Acts a lot on the edge. For this reason, bending stress acts on the movable platen 4, and the deflection amount δ 1 at the central portion of the movable plate increases.

また、図４に示すように、従来例１の構造の場合、従来例２と同様に、反力ｆは可動盤４の可動金型取付面４ａに、ほぼ均一に作用し、型締力Ｆは、リンクピン穴７が従来例２と同様に可動盤４の側縁に近い部分に設けられてはいるが、可動盤４の可動金型取付面４ａ寄りの側縁に溝８を設けているため、可動盤４の中央部に多く作用する。このため可動盤４に曲げ応力が作用し、可動盤側縁部のたわみ量δ2が増大する。
特許３５７６７７８号 Further, as shown in FIG. 4, in the case of the structure of the conventional example 1, as in the conventional example 2, the reaction force f acts on the movable mold mounting surface 4a of the movable platen 4 almost uniformly and the mold clamping force F The link pin hole 7 is provided in a portion close to the side edge of the movable platen 4 as in the conventional example 2, but the groove 8 is provided in the side edge near the movable mold mounting surface 4a of the movable platen 4. Therefore, it acts a lot on the central part of the movable platen 4. For this reason, bending stress acts on the movable platen 4, and the deflection amount δ 2 of the movable platen side edge increases.
Japanese Patent No. 3576778

従来の型締装置では、以下のような課題がある。
すなわち、従来例２の場合、前述のように、反力ｆは可動盤４の可動金型取付面４ａにほぼ均一に作用するのに対し、型締力Ｆは、リンクピン穴７のある可動盤４の側縁部に多く作用するため、可動盤４に曲げ応力が作用し、可動盤４中央部のたわみ量δ1が増大する。一方、可動盤４側縁部には型締力Ｆがかかるため、側縁部のたわみ量δ2は小さく、中央部と側縁部のたわみ量の差が大きくなる。 The conventional mold clamping device has the following problems.
That is, in the case of the conventional example 2, as described above, the reaction force f acts almost uniformly on the movable mold mounting surface 4a of the movable platen 4, whereas the mold clamping force F is movable with the link pin hole 7. Since it acts on the side edges of the board 4 in a large amount, bending stress acts on the movable board 4 and the amount of deflection δ 1 at the center of the movable board 4 increases. Meanwhile, since the movable platen 4 side edges take a clamping force F, the amount of deflection [delta] 2 of the side edge portion is small, the difference in the amount of deflection of the central portion and the side edge portion is increased.

また、従来例１の場合、反力ｆは可動盤４の可動金型取付面４ａに、ほぼ均一に作用するのに対し、型締力Ｆは、可動盤４の中央部に多く作用するため、従来例２の課題であった可動盤４の中央部のたわみ量δ1の増大が軽減されるが、可動盤側縁部のたわみ量δ2が増大し、従来例２と同様、中央部と側縁部のたわみ量の差が大きくなる。加えて、従来例１の構造では、可動盤４の側縁部は型締力Ｆがほとんど作用しないばかりでなく、溝８が設けられていることにより側縁部付近の剛性が小さくなっているため、可動盤４の側縁部のたわみ量δ2がさらに増大し、中央部と側縁部のたわみ量の差が従来例２よりも大きくなる恐れがある。 In the case of Conventional Example 1, the reaction force f acts almost uniformly on the movable mold mounting surface 4 a of the movable platen 4, whereas the mold clamping force F acts much on the central portion of the movable platen 4. The increase in the amount of deflection δ 1 at the center of the movable platen 4 that was a problem of the conventional example 2 is reduced, but the amount of deflection δ 2 at the edge of the movable platen is increased. And the difference in deflection between the side edges increases. In addition, in the structure of the conventional example 1, not only the mold clamping force F does not act on the side edge of the movable platen 4, but the rigidity in the vicinity of the side edge is reduced by the provision of the groove 8. Therefore, the deflection amount δ 2 of the side edge portion of the movable platen 4 further increases, and the difference in deflection amount between the center portion and the side edge portion may be larger than that in the conventional example 2.

一般的に、可動盤４のたわみ量が大きくなると、その部分の成形品の肉厚が厚くなる。成形品を一度に複数個成形する多数個取り成形の場合、従来例１及び２のどちらの場合でも可動盤４の中央部と側縁部のたわみ量δ1及びδ2の差が大きいため（すなわち、従来例１ではδ1＜δ2、従来例２ではδ1＞δ2）、可動盤４の中央部と側縁部の成形品では肉厚のばらつきが増大する可能性がある。 Generally, when the amount of deflection of the movable platen 4 increases, the thickness of the molded product at that portion increases. In the case of multi-cavity molding in which a plurality of molded products are molded at a time, the difference between the deflection amounts δ 1 and δ 2 between the central portion and the side edge portion of the movable platen 4 is large in both cases of the conventional examples 1 and 2 ( That is, in Conventional Example 1, δ 1 <δ 2 and in Conventional Example 2 δ 1 > δ 2 ), there is a possibility that the variation in the thickness of the molded product at the center portion and the side edge portion of the movable platen 4 increases.

本発明は、前記従来の課題を解決するためになされたもので、多数個取りの場合でも可動盤の中央部及び側縁部のたわみ量の差を最小にし、剛性を落すことなく、成形品肉厚のばらつきを最小限にすることを目的としており、可動盤のリンクピン穴の中心を通るとともに可動金型取付面と直交する直線上の可動金型取付面寄りの位置に、リンクピン穴の貫通方向と平行に中空穴を設けることを最も主要な特徴とする。   The present invention has been made to solve the above-described conventional problems, and even in the case of a large number of molds, the difference in the amount of deflection between the central portion and the side edge portion of the movable platen is minimized, and the molded product is not reduced. The purpose is to minimize the variation in wall thickness, and the link pin hole passes through the center of the link pin hole of the movable panel and is located near the movable mold mounting surface on a straight line perpendicular to the movable mold mounting surface. The most important feature is that a hollow hole is provided in parallel with the through direction.

すなわち、請求項１記載の射出成形機の型締装置は、固定金型（１）を取り付けるための固定金型取付面（２ａ）を有する固定盤（２）と、可動金型（３）を取り付けるための可動金型取付面（４ａ）を有する可動盤（４）と、前記可動盤（４）の前記可動金型取付面（４ａ）とは反対側の面（４ｂ）から型締力を伝達するトグルリンク機構（５）と、を備え、前記可動盤（４）は、前記トグルリンク機構（５）を接続するためのリンクピン穴（７）が形成されたトグルリンク接続部（６）を有する射出成形機の型締装置において、
前記可動盤（４）の前記リンクピン穴（７）の中心を通るとともに前記可動金型取付面（４ａ）と直交する直線上の前記可動金型取付面（４ａ）寄りの位置に、前記リンクピン穴（７）の貫通方向と平行に中空穴（９）を設けたことを特徴とする。 That is, the mold clamping device of the injection molding machine according to claim 1 includes a stationary platen (2) having a stationary mold mounting surface (2a) for mounting the stationary mold (1), and a movable mold (3). A mold clamping force is applied from a movable plate (4) having a movable mold mounting surface (4a) for mounting and a surface (4b) of the movable plate (4) opposite to the movable mold mounting surface (4a). A toggle link mechanism (5) for transmitting, and the movable platen (4) has a toggle link connection part (6) in which a link pin hole (7) for connecting the toggle link mechanism (5) is formed. In a mold clamping device of an injection molding machine having
The link passes through the center of the link pin hole (7) of the movable platen (4) and at a position near the movable mold mounting surface (4a) on a straight line perpendicular to the movable mold mounting surface (4a). A hollow hole (9) is provided in parallel with the penetrating direction of the pin hole (7).

また、請求項２記載の射出成形機の型締装置は、固定金型（１）を取り付けるための固定金型取付面（２ａ）を有する固定盤（２）と、可動金型（３）を取り付けるための可動金型取付面（４ａ）を有する可動盤（４）と、前記可動盤（４）の前記可動金型取付面（４ａ）とは反対側の面（４ｂ）から型締力を伝達するトグルリンク機構（５）と、を備え、前記可動盤（４）には、前記トグルリンク機構（５）を接続するためのリンクピン穴（７）が形成されたトグルリンク接続部材（６）がボルト等にて取り付けられている射出成形機の型締装置において、
前記可動盤（４）の前記リンクピン穴（７）の中心を通るとともに前記可動金型取付面（４ａ）と直交する直線上の前記可動金型取付面（４ａ）寄りの位置に、前記リンクピン穴（７）の貫通方向と平行に中空穴（９）を設けたことを特徴とする。 The mold clamping device for an injection molding machine according to claim 2 includes a stationary platen (2) having a stationary mold mounting surface (2a) for mounting the stationary mold (1), and a movable mold (3). A mold clamping force is applied from a movable plate (4) having a movable mold mounting surface (4a) for mounting and a surface (4b) of the movable plate (4) opposite to the movable mold mounting surface (4a). A toggle link mechanism (5) for transmitting, and a toggle link connecting member (6) in which a link pin hole (7) for connecting the toggle link mechanism (5) is formed in the movable platen (4). ) Is a mold clamping device of an injection molding machine attached with bolts, etc.
The link passes through the center of the link pin hole (7) of the movable platen (4) and at a position near the movable mold mounting surface (4a) on a straight line perpendicular to the movable mold mounting surface (4a). A hollow hole (9) is provided in parallel with the penetrating direction of the pin hole (7).

本発明によれば、リンクピン穴に作用する型締力Ｆが盤面全体に均一に分布し、多数個取り成形の場合でも、可動盤の中央部及び側縁部のたわみ量δ1及びδ2の差を最小、すなわちδ1≒δ2にし、剛性を落すことなく、成形品肉厚のばらつきを最小限にすることができる。したがって、１個取りから多数個取り成形まで幅広く対応することが可能となる。また、中空穴を設けることにより、可動盤の断面が箱体構造となるため、従来形状で同一重量のものと比較すると、断面係数が大きくなり、軽量かつ高剛性な可動盤を実現することができる。 According to the present invention, the mold clamping force F acting on the link pin hole is uniformly distributed over the entire board surface, and even in the case of multi-cavity molding, the deflection amounts δ 1 and δ 2 of the central part and the side edge part of the movable board difference in the minimum, ie the [delta] 1 ≒ [delta] 2, without lowering the rigidity, dispersion of the molded article thickness it is possible to minimize. Therefore, it is possible to deal with a wide range from single-piece to multi-piece molding. Moreover, since the cross section of the movable plate has a box structure by providing a hollow hole, the section modulus is larger than that of the conventional shape and the same weight, and a lightweight and highly rigid movable plate can be realized. it can.

本発明によれば、可動盤のリンクピン穴の中心を通るとともに可動金型取付面と直交する直線上の可動金型取付面寄りの位置に、リンクピン穴の貫通方向と平行に中空穴を設ける。   According to the present invention, the hollow hole is formed parallel to the penetrating direction of the link pin hole at a position near the movable mold mounting surface on a straight line passing through the center of the link pin hole of the movable plate and orthogonal to the movable mold mounting surface. Provide.

図１に示す本発明の実施例に関わる構成図に基づいて説明する。
固定盤２には、これの固定金型取付面２ａに固定金型１が取り付けられており、可動盤４には、これの可動金型取付面４ａに可動金型３が取り付けられている。可動盤４の可動金型取付面４ａとは反対側の面４ｂの側縁部には、リンクピン穴７が形成されたトグルリンク接続部６が一体成形されており、可動盤４には、リンクピン穴７の中心を通るとともに可動金型取付面４ａと直交する直線上の可動金型取付面４ａ寄りの位置に、リンクピン穴７の貫通方向と平行に断面長方形の中空穴９が形成されている。可動盤４を挟んで可動金型３とは反対側の位置にトグルリンク機構５が配設されており、トグルリンク機構５は、リンクピン穴７に接続されて、可動盤４を固定盤２に接近及び離隔させる方向へ前後進させるとともに、可動金型取付面４ａとは反対側の面４ｂから可動盤４に型締力を伝達する。 A description will be given based on the configuration diagram relating to the embodiment of the present invention shown in FIG.
The fixed mold 1 is attached to the fixed mold 2 on the fixed mold attachment surface 2a, and the movable mold 4 is attached to the movable mold 4 on the movable mold attachment surface 4a. A toggle link connecting portion 6 in which a link pin hole 7 is formed is integrally formed on the side edge of the surface 4 b opposite to the movable mold mounting surface 4 a of the movable platen 4. A hollow hole 9 having a rectangular cross section is formed parallel to the penetrating direction of the link pin hole 7 at a position near the movable mold mounting surface 4a on a straight line passing through the center of the link pin hole 7 and orthogonal to the movable mold mounting surface 4a. Has been. A toggle link mechanism 5 is disposed at a position opposite to the movable mold 3 with the movable platen 4 interposed therebetween. The toggle link mechanism 5 is connected to the link pin hole 7 so that the movable platen 4 is fixed to the fixed platen 2. The mold clamping force is transmitted to the movable platen 4 from the surface 4b opposite to the movable mold mounting surface 4a.

次に、本実施例の作用について説明する。
トグルリンク機構５を駆動して可動盤４を固定盤２方向へ前進させ、固定金型１と可動金型３とを接触させる。この後、トグルリンク機構５により可動盤４をさらに前進させることにより、型締力Ｆがトグルリンク機構５からリンクピン穴７を介して可動盤４及び可動金型３へと伝達される Next, the operation of this embodiment will be described.
The toggle link mechanism 5 is driven to advance the movable platen 4 toward the fixed platen 2 so that the fixed mold 1 and the movable mold 3 are brought into contact with each other. Thereafter, the movable platen 4 is further advanced by the toggle link mechanism 5, whereby the mold clamping force F is transmitted from the toggle link mechanism 5 to the movable platen 4 and the movable mold 3 through the link pin hole 7.

一般的に、可動金型３から可動盤４への反力ｆは、可動盤４の可動金型取付面４ａにほぼ均一に作用するのに対し、トグルリンク機構５から可動盤４へ伝達される型締力Ｆは、トグルリンク機構５が接続されるリンクピン穴７が可動盤４の側縁部に近い部分にあるため、可動盤４の側縁部に多く作用し、従来例２のように、可動盤４の中央部が側縁部に対して大きくたわむ、すなわち、たわみ量δ1＞δ2になる。 In general, the reaction force f from the movable die 3 to the movable platen 4 acts on the movable die mounting surface 4a of the movable platen 4 almost uniformly, but is transmitted from the toggle link mechanism 5 to the movable platen 4. Since the link pin hole 7 to which the toggle link mechanism 5 is connected is located near the side edge of the movable platen 4, the mold clamping force F acts on the side edge of the movable platen 4. As described above, the central portion of the movable platen 4 is greatly bent with respect to the side edge portion, that is, the amount of deflection δ 1 > δ 2 .

しかし、本願発明では、可動金型取付面４ａに直交するとともにリンクピン穴７を通る直線上の位置には中空穴９が設けられており、トグルリンク機構５から伝達される型締力Ｆが最も大きく作用する位置に中空穴９が存在することになる。このため、図２に示されるように、リンクピン穴７に作用する型締力Ｆが可動盤４の側縁部に集中することなく、可動盤４の中央部から側縁部にかけて適正分布され、可動金型取付面４ａ全体に均一な荷重分布を実現する。また、中空穴９により、可動盤４の断面形状が箱体構造となるため、従来形状で同一重量のものと比較すると断面係数が大きくなり、軽量かつ高剛性な可動盤４が実現できる。   However, in the present invention, a hollow hole 9 is provided at a position on a straight line passing through the link pin hole 7 and orthogonal to the movable mold mounting surface 4a, and the mold clamping force F transmitted from the toggle link mechanism 5 is The hollow hole 9 exists in the position where it acts most. For this reason, as shown in FIG. 2, the mold clamping force F acting on the link pin hole 7 is not properly concentrated on the side edge of the movable platen 4, but is properly distributed from the center to the side edge of the movable platen 4. A uniform load distribution is realized over the entire movable mold mounting surface 4a. In addition, since the cross-sectional shape of the movable platen 4 has a box structure due to the hollow hole 9, the sectional modulus is larger than that of the conventional shape and the same weight, and the movable platen 4 that is lightweight and highly rigid can be realized.

これにより、多数個取り成形の場合でも可動盤４の中央部及び側縁部のたわみ量δ1及びδ2の差を最小にし、可動盤４の剛性を落すことなく、可動盤４の部位による成形品の肉厚のばらつきを最小限にすることができる。したがって、１個取りから多数個取り成形まで幅広く対応することが可能となる。 Thereby, even in the case of multi-cavity molding, the difference between the deflection amounts δ 1 and δ 2 of the central portion and the side edge portion of the movable platen 4 is minimized, and the rigidity of the movable platen 4 is not lowered, and it depends on the portion of the movable platen 4 Variation in the thickness of the molded product can be minimized. Therefore, it is possible to deal with a wide range from single-piece to multi-piece molding.

なお、実施例においては、トグルリンク接続部６を可動盤４と一体成形したものとしたが、これに限定されず、別部材をボルト等にて可動盤４に取り付けることにより構成してもよい。   In the embodiment, the toggle link connecting portion 6 is formed integrally with the movable platen 4. However, the present invention is not limited to this, and a separate member may be attached to the movable platen 4 with a bolt or the like. .

また、実施例においては、中空穴９の形状を断面長方形としたが、これに限定されるものではなく、断面三角形状や台形状など、適宜形状を変更することができる。   In the embodiment, the hollow hole 9 has a rectangular cross section. However, the shape is not limited to this, and the shape can be changed as appropriate, such as a triangular cross section or a trapezoidal shape.

本発明の実施例に関わる型締装置の構成図である。It is a block diagram of the mold clamping apparatus in the Example of this invention. 実施例の可動盤に伝達される力を表した図である。It is a figure showing the force transmitted to the movable board of an Example. 従来例１の型締装置の構成図である。It is a block diagram of the mold clamping apparatus of the prior art example 1. 従来例１の可動盤に伝達される力を表した図である。It is a figure showing the force transmitted to the movable board of the prior art example 1. FIG. 従来例２の型締装置の構成図である。It is a block diagram of the mold clamping apparatus of the prior art example 2. 従来例２の可動盤に伝達される力を表した図である。It is a figure showing the force transmitted to the movable board of the prior art example 2.

符号の説明Explanation of symbols

１ 固定金型
２ 固定盤
２ａ 固定金型取付面
３ 可動金型
４ 可動盤
４ａ 可動金型取付面
４ｂ 面
５ トグルリンク機構
６ トグルリンク接続部
７ リンクピン穴
９ 中空穴 DESCRIPTION OF SYMBOLS 1 Fixed die 2 Fixed platen 2a Fixed die attachment surface 3 Movable die 4 Movable platen 4a Movable die attachment surface 4b Surface 5 Toggle link mechanism 6 Toggle link connection part 7 Link pin hole 9 Hollow hole

Claims (2)

固定金型（１）を取り付けるための固定金型取付面（２ａ）を有する固定盤（２）と、可動金型（３）を取り付けるための可動金型取付面（４ａ）を有する可動盤（４）と、前記可動盤（４）の前記可動金型取付面（４ａ）とは反対側の面（４ｂ）から型締力を伝達するトグルリンク機構（５）と、を備え、前記可動盤（４）は、前記トグルリンク機構（５）を接続するためのリンクピン穴（７）が形成されたトグルリンク接続部（６）を有する射出成形機の型締装置において、
前記可動盤（４）の前記リンクピン穴（７）の中心を通るとともに前記可動金型取付面（４ａ）と直交する直線上の前記可動金型取付面（４ａ）寄りの位置に、前記リンクピン穴（７）の貫通方向と平行に中空穴（９）を設けたことを特徴とする射出成形機の型締装置。 A stationary platen (2) having a fixed mold mounting surface (2a) for mounting the fixed mold (1), and a movable platen having a movable mold mounting surface (4a) for mounting the movable mold (3) ( 4) and a toggle link mechanism (5) for transmitting a clamping force from a surface (4b) opposite to the movable mold mounting surface (4a) of the movable plate (4), and the movable plate (4) is a mold clamping device of an injection molding machine having a toggle link connection portion (6) in which a link pin hole (7) for connecting the toggle link mechanism (5) is formed,
The link passes through the center of the link pin hole (7) of the movable platen (4) and at a position near the movable mold mounting surface (4a) on a straight line perpendicular to the movable mold mounting surface (4a). A mold clamping device of an injection molding machine, wherein a hollow hole (9) is provided in parallel with a penetrating direction of the pin hole (7). 固定金型（１）を取り付けるための固定金型取付面（２ａ）を有する固定盤（２）と、可動金型（３）を取り付けるための可動金型取付面（４ａ）を有する可動盤（４）と、前記可動盤（４）の前記可動金型取付面（４ａ）とは反対側の面（４ｂ）から型締力を伝達するトグルリンク機構（５）と、を備え、前記可動盤（４）には、前記トグルリンク機構（５）を接続するためのリンクピン穴（７）が形成されたトグルリンク接続部材（６）がボルト等にて取り付けられている射出成形機の型締装置において、
前記可動盤（４）の前記リンクピン穴（７）の中心を通るとともに前記可動金型取付面（４ａ）と直交する直線上の前記可動金型取付面（４ａ）寄りの位置に、前記リンクピン穴（７）の貫通方向と平行に中空穴（９）を設けたことを特徴とする射出成形機の型締装置。 A stationary platen (2) having a fixed mold mounting surface (2a) for mounting the fixed mold (1), and a movable platen having a movable mold mounting surface (4a) for mounting the movable mold (3) ( 4) and a toggle link mechanism (5) for transmitting a clamping force from a surface (4b) opposite to the movable mold mounting surface (4a) of the movable plate (4), and the movable plate (4) includes a mold clamping of an injection molding machine in which a toggle link connecting member (6) formed with a link pin hole (7) for connecting the toggle link mechanism (5) is attached with a bolt or the like. In the device
The link passes through the center of the link pin hole (7) of the movable platen (4) and at a position near the movable mold mounting surface (4a) on a straight line perpendicular to the movable mold mounting surface (4a). A mold clamping device of an injection molding machine, wherein a hollow hole (9) is provided in parallel with a penetrating direction of the pin hole (7).
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014028479A (en) * 2012-07-31 2014-02-13 Nissei Plastics Ind Co Clamping device
KR20170073560A (en) * 2014-02-04 2017-06-28 스미도모쥬기가이고교 가부시키가이샤 Injection molding machine

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JPH0735020U (en) * 1993-12-15 1995-06-27 株式会社新潟鉄工所 Clamping device for injection molding machine
JPH11170322A (en) * 1997-12-08 1999-06-29 Sumitomo Heavy Ind Ltd Mold clamping apparatus
JP2003266477A (en) * 2002-03-15 2003-09-24 Sumitomo Heavy Ind Ltd Device for supporting stationary mold of molding machine
WO2005084909A1 (en) * 2004-03-09 2005-09-15 Sumitomo Heavy Industries, Ltd. Mold support device, molding machine, and molding method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735020U (en) * 1993-12-15 1995-06-27 株式会社新潟鉄工所 Clamping device for injection molding machine
JPH11170322A (en) * 1997-12-08 1999-06-29 Sumitomo Heavy Ind Ltd Mold clamping apparatus
JP2003266477A (en) * 2002-03-15 2003-09-24 Sumitomo Heavy Ind Ltd Device for supporting stationary mold of molding machine
WO2005084909A1 (en) * 2004-03-09 2005-09-15 Sumitomo Heavy Industries, Ltd. Mold support device, molding machine, and molding method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014028479A (en) * 2012-07-31 2014-02-13 Nissei Plastics Ind Co Clamping device
KR20170073560A (en) * 2014-02-04 2017-06-28 스미도모쥬기가이고교 가부시키가이샤 Injection molding machine
KR102174128B1 (en) * 2014-02-04 2020-11-04 스미도모쥬기가이고교 가부시키가이샤 Injection molding machine

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