JPH05177642A - Clamping device - Google Patents
Clamping deviceInfo
- Publication number
- JPH05177642A JPH05177642A JP35914191A JP35914191A JPH05177642A JP H05177642 A JPH05177642 A JP H05177642A JP 35914191 A JP35914191 A JP 35914191A JP 35914191 A JP35914191 A JP 35914191A JP H05177642 A JPH05177642 A JP H05177642A
- Authority
- JP
- Japan
- Prior art keywords
- mold clamping
- mold
- ram
- clamping rod
- fixed case
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
- B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は可動盤に連結した型締
ロッドと型締シリンダ内の型締ラムとを噛合により連結
して金型の型締を行う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 device for clamping a mold by engaging a mold clamping rod connected to a movable plate and a mold clamping ram in a mold clamping cylinder by meshing.
【０００２】[0002]
【従来の技術】特公昭５１−１１０２３号公報に記載さ
れた型締装置では、タイバーにより支持した可動盤に先
端を連結した型締ロッドを、中空の型締ラムに進退自在
に挿入し、その型締ロッドと上記型締ラムとを嵌合によ
り一体化して、金型の型締を行うようにしている。2. Description of the Related Art In a mold clamping device disclosed in Japanese Patent Publication No. 51-11023, a mold clamping rod having a tip connected to a movable plate supported by a tie bar is inserted into a hollow mold clamping ram so as to be able to move back and forth. The mold clamping rod and the mold clamping ram are integrated by fitting to clamp the mold.
【０００３】[0003]
【発明が解決しようとする課題】このような従来構造で
は、型締ロッドが型締ラム内に挿入されていても、そこ
には移動のためのクリアランスが設けてあるので、可動
盤の支持は実質的にタイバーによる可動盤両側にて行っ
ている。In such a conventional structure, even if the mold clamping rod is inserted into the mold clamping ram, a clearance for movement is provided there, so that the movable platen is not supported. Substantially on both sides of the movable plate with tie bars.
【０００４】このため最小型厚の金型が取付けられて型
締ラムの突出量が長くなると、型締ラムが片持ちの状態
にあるため、型締ラムをガイドしている部材とのクリア
ランス分だけ型締ラムが前下がりの状態になり寝可動盤
に負担が掛かり易い。For this reason, when the die having the minimum die thickness is attached and the protruding amount of the die clamping ram becomes long, the die clamping ram is in a cantilever state, and therefore the clearance with the member guiding the die clamping ram is generated. Only then, the mold clamping ram is lowered to the front, and it is easy to put a load on the movable bed.
【０００５】このような現象を防止する手段としては、
タイバーにより型締ラムをガイドすることが考えられる
が、この場合にもガイド部分の成形精度が要求され、き
わめてコスト高となる問題を有する。As means for preventing such a phenomenon,
Although it is conceivable to guide the mold clamping ram with a tie bar, the molding accuracy of the guide portion is required in this case as well, and there is a problem that the cost becomes extremely high.
【０００６】この発明は上記課題を解決するために考え
られたものであって、その目的は、型締ロッドにより型
締ラムを支持するようにして、型締ラムの前下がりを防
止することにある。The present invention has been conceived in order to solve the above problems, and an object thereof is to prevent the mold clamping ram from moving down by supporting the mold clamping ram with a mold clamping rod. is there.
【０００７】[0007]
【課題を解決するための手段】したがって上記目的によ
るこの発明の特徴は、中空の型締ラムを有する型締シリ
ンダと、複数本のタイバーをガイドとして進退移動する
可動盤と、上記型締ラム内に出入自在に挿入して先端部
を上記可動盤に連結した型締ロッドと、その型締ロッド
の後端部周囲に設けた所要の係合溝と噛合する一対のチ
ャック部材を、固定ケースに収容して上記型締ラムの前
端に取付けた型締装置において、上記型締ロッドの外径
を上記型締ラムの内径より小径に形成して、上記固定ケ
ースの内周縁を型締ラムの内側に突設するとともに、型
締ロッドの後端に外周面が上記型締ラムの内周面と接
し、かつ端面周縁が上記固定ケースの内端部と接する外
径のガイド部材を型締ロッド後端に一体に連結してなる
ことにある。Therefore, the features of the present invention according to the above-mentioned object are: a mold clamping cylinder having a hollow mold clamping ram; a movable platen which moves back and forth using a plurality of tie bars as guides; A mold clamping rod whose front end is connected to the movable plate and a pair of chuck members which engage with a required engaging groove provided around the rear end of the mold clamping rod are fixed to the fixed case. In the mold clamping device housed and attached to the front end of the mold clamping ram, the outer diameter of the mold clamping rod is formed to be smaller than the inner diameter of the mold clamping ram, and the inner peripheral edge of the fixed case is inside the mold clamping ram. A guide member having an outer diameter whose outer peripheral surface is in contact with the inner peripheral surface of the mold clamping ram and whose peripheral edge is in contact with the inner end of the fixed case at the rear end of the mold clamping rod. It is to be integrally connected to the end.
【０００８】[0008]
【作 用】上記構成では、型開閉シリンダの作動により
可動盤が型閉方向へ前進移動すると、始めに型締ロッド
が型締シリンダ内を前進移動して行く。この前進移動に
よりガイド部材は型締ロッドの先端部内へと移動し、型
締ラムを内部から支持する。また金型が閉じる以前に後
端のガイド部材の前端周面が固定ケースの内端部に接
し、固定ケースを介して型締ラムを引き出す。[Operation] In the above configuration, when the movable plate moves forward in the mold closing direction due to the operation of the mold opening / closing cylinder, the mold clamping rod first moves forward in the mold clamping cylinder. By this forward movement, the guide member moves into the tip portion of the mold clamping rod to support the mold clamping ram from the inside. Further, before the mold is closed, the front end peripheral surface of the guide member at the rear end contacts the inner end of the fixed case, and the mold clamping ram is pulled out through the fixed case.
【０００９】これにより型締ロッドと固定ケース及び型
締ラムは、型閉方向に共に前進移動し、また型締ロッド
の後端部の係合溝がチャック部材の部分に位置するの
で、その移動中にチャック部材による型締ロッドと型締
ロッドとの連結を行い。しかるのちに型締シリンダの作
動により金型の型締が行われる。As a result, the mold clamping rod, the fixed case, and the mold clamping ram move forward together in the mold closing direction, and the engaging groove at the rear end of the mold clamping rod is located at the chuck member. The mold clamping rods are connected to each other by the chuck members. After that, the mold is clamped by the operation of the mold clamping cylinder.
【００１０】[0010]
【実施例】図中１，２は所要間隔を空けて機台上に対設
した一対の固定盤で、四隅部のタイバー３，３により連
結してある。またタイバー３，３には可動盤４が進退自
在に挿通して設けてあり、この可動盤４と固定盤２の対
向側面に、図では省略したが、金型が分割して取付けら
れる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numerals 1 and 2 denote a pair of fixed plates which are installed on a machine base with a required space therebetween, and are connected by tie bars 3 and 3 at four corners. Further, a movable platen 4 is inserted through the tie bars 3 and 3 so as to be able to move forward and backward, and molds are separately attached to the opposing side faces of the movable platen 4 and the fixed platen 2, although not shown in the drawing.
【００１１】上記固定盤１には、型開閉ストロークより
も長い中空の型締ラム５を有する型締シリンダ６が貫設
してあり、その型締ラム５の内には型締ロッド７が出入
自在に挿入してある。この型締ロッド７の先端部は上記
可動盤４の背部中央に連結してあり、また後端部周囲に
は多数の環状細溝やねじ溝等による噛合用の係合溝８が
設けてある。A mold clamping cylinder 6 having a hollow mold clamping ram 5 longer than the mold opening / closing stroke is provided through the fixed platen 1, and a mold clamping rod 7 is inserted into and removed from the mold clamping ram 5. It is freely inserted. The tip end of this mold clamping rod 7 is connected to the center of the back part of the movable platen 4, and a plurality of annular fine grooves, engagement grooves 8 for engagement by screw grooves, etc. are provided around the rear end part. ..
【００１２】上記型締ロッド７の外径は、上記型締ラム
５の内径より小径で、後端には外周面が上記型締ラム５
の内周面と接する外径の円盤状のガイド部材９が、前後
に位置を調整自在にして一体に連結してある。なお、図
示のものは可動時の摩擦抵抗を軽減するため前部のみ大
径に形成してある。The outer diameter of the mold clamping rod 7 is smaller than the inner diameter of the mold clamping ram 5, and the outer peripheral surface at the rear end is the mold clamping ram 5.
A disk-shaped guide member 9 having an outer diameter that is in contact with the inner peripheral surface is integrally connected so that its position can be adjusted forward and backward. The one shown in the figure is formed with a large diameter only in the front part in order to reduce frictional resistance during movement.
【００１３】１０，１０は上記係合溝８と対応する多数
の凸条を内側面に有する一対の噛合用のチャック部材
で、中央部に上記型締ロッド７の挿通穴を備えた固定ケ
ース１１に収容してあり、その固定ケース１０にはチャ
ック部材９，９の作動シリンダ１２，１２が設けてあ
る。Numerals 10 and 10 denote a pair of engaging chuck members having a large number of protrusions corresponding to the engaging groove 8 on the inner side surface, and a fixed case 11 having a through hole for the mold clamping rod 7 at the center. The fixed case 10 is provided with working cylinders 12, 12 for the chuck members 9, 9.
【００１４】上記固定ケース１１は、型締ラム５の内径
と型締ロッド７の外径のギャップほど内周縁を型締ラム
５の内側に突出して、該型締ラム５の先端面に一体に設
けられており、型締ロッド７が可動盤４とともに型閉方
向に前進移動したときに、上記ガイド部材９の前端周面
９ａが型締ラム内に突出した内端部１３と接するように
してある。The fixed case 11 has an inner peripheral edge protruding toward the inner side of the mold clamping ram 5 by a gap between the inner diameter of the mold clamping ram 5 and the outer diameter of the mold clamping ram 7 to be integrated with the tip surface of the mold clamping ram 5. When the mold clamping rod 7 moves forward together with the movable platen 4 in the mold closing direction, the front end peripheral surface 9a of the guide member 9 comes into contact with the inner end portion 13 protruding into the mold clamping ram. is there.
【００１５】１５は可動盤４と型締ロッド７の連結部に
設けた型締ラム５の押戻しブロックで、上記固定ケース
１１の内周縁の外端部１４と接するようにしてある。Reference numeral 15 is a push-back block of the mold clamping ram 5 provided at the connecting portion between the movable platen 4 and the mold clamping rod 7, and is designed to come into contact with the outer end portion 14 of the inner peripheral edge of the fixed case 11.
【００１６】１６，１６は型開閉シリンダで、シリンダ
側を上記固定盤１に、ロッド１７，１７を可動盤４に取
付けて両盤にわたり設けてある。Numerals 16 and 16 are mold opening / closing cylinders, and the cylinder side is attached to the fixed platen 1 and the rods 17 and 17 are attached to the movable platen 4 so as to extend over both plates.
【００１７】上記構造の型締装置では、図１に示す型開
の状態において、型開閉シリンダ１６，１６の作動によ
り可動盤４が型閉方向へ前進移動すると、始めに型締ロ
ッド７が型締シリンダ内を前進移動して行く。この前進
移動によりガイド部材は型締ロッド５の先端部内へと移
動し、型締ラム５を内部から支持して前下がりを防止す
る。上記型締ロッド７もまた固定ケース１１及び型締ラ
ム５内を前進移動して行く。この前進移動により型締ロ
ッド側では、金型が閉じる以前に後端のガイド部材９の
前端周面９ａが固定ケース１１の内端部１２に接し、固
定ケース１１を介して型締ラム５を引き出すようにな
る。In the mold clamping device having the above structure, when the movable platen 4 is moved forward in the mold closing direction by the operation of the mold opening / closing cylinders 16 in the mold open state shown in FIG. Move forward in the tightening cylinder. Due to this forward movement, the guide member moves into the tip portion of the mold clamping rod 5, and supports the mold clamping ram 5 from the inside to prevent the front lowering. The mold clamping rod 7 also moves forward in the fixed case 11 and the mold clamping ram 5. Due to this forward movement, on the mold clamping rod side, the front end peripheral surface 9a of the guide member 9 at the rear end contacts the inner end portion 12 of the fixed case 11 before the mold is closed, and the mold clamping ram 5 is fixed via the fixed case 11. Will come out.
【００１８】これにより型締ロッド７と固定ケース１１
及び型締ラム５は、型閉方向に共に前進移動するように
なる。また型締ロッド７の後端部の係合溝８がチャック
部材１０，１０の部分に位置するようになるので、その
移動中に作動シリンダ１２，１２を作動して、チャック
部材１０，１０による型締ロッド５と型締ロッド７との
一体的な連結を行うことができる。As a result, the mold clamping rod 7 and the fixed case 11
And the mold clamping ram 5 moves forward together in the mold closing direction. Further, since the engaging groove 8 at the rear end portion of the mold clamping rod 7 comes to be located at the chuck member 10, 10, the operating cylinders 12, 12 are operated during the movement, and the chuck member 10, 10 is operated. The mold clamping rod 5 and the mold clamping rod 7 can be integrally connected.
【００１９】この型締ロッド側の係合溝８とチャック部
材１０．１０との噛合による連結は、ガイド部材９の先
端周面９ａと上記内端部１３との接触を近接スイッチな
どにより検出して行うことが好ましい。The engagement between the engagement groove 8 on the mold clamping rod side and the chuck member 10.10 is achieved by detecting the contact between the tip peripheral surface 9a of the guide member 9 and the inner end portion 13 by a proximity switch or the like. It is preferable to carry out.
【００２０】また型締シリンダ６の作動位置は、正規の
型閉位置よりも型開ストロークに相当するだけ型閉後に
型締ラム５を後退させた位置に設定し、この位置より金
型が完全に閉じるまでの間に、上記係合溝８とチャック
部材１０，１０の噛合を行ない、型閉じが完了した時点
で、型締シリンダ６による金型の型締に切換わる。The operating position of the mold clamping cylinder 6 is set to a position in which the mold clamping ram 5 is retracted after the mold is closed by a distance corresponding to the mold opening stroke from the normal mold closing position, and the mold is completely moved from this position. The engaging groove 8 and the chuck members 10 and 10 are engaged with each other until the mold is closed, and when the mold closing is completed, the mold clamping cylinder 6 switches to mold clamping of the mold.
【００２１】また型開に際しては、まず型締シリンダ６
により型締ラム５を正規の型閉位置から上記作動位置ま
で後退して型開を行い、次に型締シリンダ６の作動を停
止して型開閉シリンダ１６，１６により型開を行う。こ
の型開により型締ロッド７が型締ロッド５内を後退移動
するようになって、上記ガイド部材９の前端周面９ａは
固定ケース１１の内端部１３より離れて行く。その後に
上記押戻しブロック１５が固定ケース１１の外端部１４
に接し、これにより型締ラム５が型締シリンダ内を後退
移動して元の位置に戻る。When opening the mold, first, the mold clamping cylinder 6
Thus, the mold clamping ram 5 is retracted from the regular mold closing position to the above-mentioned operating position to perform mold opening, and then the operation of the mold clamping cylinder 6 is stopped and the mold opening / closing cylinders 16 and 16 perform mold opening. By this mold opening, the mold clamping rod 7 moves backward in the mold clamping rod 5, and the front end peripheral surface 9a of the guide member 9 moves away from the inner end portion 13 of the fixed case 11. After that, the push-back block 15 is attached to the outer end portion 14 of the fixed case 11.
, Whereby the mold clamping ram 5 moves backward in the mold clamping cylinder and returns to its original position.
【００２２】[0022]
【発明の効果】この発明は上述のように、型締ロッド７
の外径を型締ラム５の内径より小径に形成して、固定ケ
ース１１の内周縁を型締ラム５の内側に突設するととも
に、型締ロッド７の後端に外周面が上記型締ラムの内周
面と接し、かつ端面が上記固定ケース１１の内端１３と
接する外径のガイド部材９を型締ロッド後端に一体に連
結してなることから、ガイド部材を介して型締ロッドに
より型締ラムを支持することができる。このため型開閉
ストロークが長くなって型締ラムの突出長さ大きくなっ
ても、型締ラムが前下がりになって可動盤に負担が掛か
るようなことがない。したがって金型の型厚に影響され
ることなく、常に高精度の型閉を行うことができる。According to the present invention, as described above, the mold clamping rod 7 is used.
Is formed to have an outer diameter smaller than the inner diameter of the mold clamping ram 5, the inner peripheral edge of the fixed case 11 is projected inside the mold clamping ram 5, and the outer peripheral surface is formed at the rear end of the mold clamping rod 7. A guide member 9 having an outer diameter that is in contact with the inner peripheral surface of the ram and whose end surface is in contact with the inner end 13 of the fixed case 11 is integrally connected to the rear end of the mold clamping rod. The mold clamping ram can be supported by the rod. Therefore, even if the mold opening / closing stroke is lengthened and the protrusion length of the mold clamping ram is increased, the mold clamping ram does not move downward and the movable plate is not overloaded. Therefore, it is possible to always perform highly accurate mold closing without being affected by the mold thickness of the mold.
【００２３】また型締ロッドの後端にガイド部材を連結
するだけでよいので構造が特に複雑となるようなことも
なく、ガイド部材の前後位置を調整して、チャック部材
と係合溝の位置を一致させることもできるため、チャッ
ク部材を介しての型締ラムと型締ロッドの連結を確実に
行うことができ、噛合不良による型締ロッドの損傷を防
止することができる。Further, since it is only necessary to connect the guide member to the rear end of the mold clamping rod, the structure is not particularly complicated, and the front and rear positions of the guide member are adjusted to adjust the positions of the chuck member and the engaging groove. Since the mold clamping ram and the mold clamping rod can be reliably connected via the chuck member, damage to the mold clamping rod due to poor meshing can be prevented.
【００２４】さらにまた、ガイド部材の前端周面を型締
ロッド側の固定ケースの内端部に当接し、型締ラムを共
に移動させてチャック部材を型締ロッドに噛合できるよ
うにしたことから、噛合のための一端停止を行う必要も
なく、その分だけ型締時間を短縮することができる等の
利点を有する。Furthermore, the front end peripheral surface of the guide member is brought into contact with the inner end portion of the fixed case on the mold clamping rod side, and the mold clamping ram is moved together so that the chuck member can be engaged with the mold clamping rod. There is an advantage that the mold clamping time can be shortened by that amount without the need to stop once for meshing.
【図１】この発明に係る型締装置の型開状態における断
面図である。FIG. 1 is a sectional view of a mold clamping device according to the present invention in a mold open state.
【図２】同じく型閉状態における断面図である。FIG. 2 is a sectional view of the same in a mold closed state.
１ 固定盤 ２ 固定盤 ３ タイバー ４ 可動盤 ５ 型締ラム ６ 型締シリンダ ７ 型締ロッド ８ 係合溝 ９ ガイド部材 ９ａ 前端周面 １０ チャック部材 １１ 固定ケース １３ 内端部 １４ 外端部 １５ 押戻しブロック １６ 型開閉シリンダ 1 Fixed Plate 2 Fixed Plate 3 Tie Bar 4 Movable Plate 5 Mold Clamping Ram 6 Mold Clamping Cylinder 7 Mold Clamping Rod 8 Engagement Groove 9 Guide Member 9a Front End Surface 10 Chuck Member 11 Fixed Case 13 Inner End 14 Outer End 15 Push Return block 16 type open / close cylinder
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１２月２２日[Submission date] December 22, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Name of item to be corrected] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 型締装置[Title of Invention] Mold clamping device
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】この発明は可動盤に連結した型締
ロッドと型締シリンダ内の型締ラムとを噛合により連結
して金型の型締を行う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 device for clamping a mold by engaging a mold clamping rod connected to a movable plate and a mold clamping ram in a mold clamping cylinder by meshing.
【０００２】[0002]
【従来の技術】特公昭５１−１１０２３号公報に記載さ
れた型締装置では、タイバーにより支持した可動盤に先
端を連結した型締ロッドを、中空の型締ラムに進退自在
に挿入し、その型締ロッドと上記型締ラムとを係合によ
り一体化して、金型の型締を行うようにしている。2. Description of the Related Art In a mold clamping device disclosed in Japanese Patent Publication No. 51-11023, a mold clamping rod having a tip connected to a movable plate supported by a tie bar is inserted into a hollow mold clamping ram so as to be able to move back and forth. The mold clamping rod and the mold clamping ram are integrated by engagement to perform mold clamping of the mold.
【０００３】[0003]
【発明が解決しようとする課題】このような従来構造で
は、型締ロッドが型締ラム内に挿入されていても、そこ
には移動のためのクリアランスが設けてあるので、可動
盤の支持は実質的にタイバーによる可動盤両側にて行っ
ている。In such a conventional structure, even if the mold clamping rod is inserted into the mold clamping ram, a clearance for movement is provided there, so that the movable platen is not supported. Substantially on both sides of the movable plate with tie bars.
【０００４】このため最小型厚の金型が取付けられて型
締ラムの突出量が長くなると、型締ラムが片持ちの状態
にあるため、型締ラムをガイドしている部材とのクリア
ランス分だけ型締ラムが前下がりの状態になり寝可動盤
に負担が掛かり易い。For this reason, when the die having the minimum die thickness is attached and the protruding amount of the die clamping ram becomes long, the die clamping ram is in a cantilever state, and therefore the clearance with the member guiding the die clamping ram is generated. Only then, the mold clamping ram is lowered to the front, and it is easy to put a load on the movable bed.
【０００５】このような現象を防止する手段としては、
タイバーにより型締ラムをガイドすることが考えられる
が、この場合にもガイド部分の成形精度が要求され、き
わめてコスト高となる問題を有する。As means for preventing such a phenomenon,
Although it is conceivable to guide the mold clamping ram with a tie bar, the molding accuracy of the guide portion is required in this case as well, and there is a problem that the cost becomes extremely high.
【０００６】この発明は上記課題を解決するために考え
られたものであって、その目的は、型締ロッドにより型
締ラムを支持するようにして、型締ラムの前下がりを防
止することにある。The present invention has been conceived in order to solve the above problems, and an object thereof is to prevent the mold clamping ram from moving down by supporting the mold clamping ram with a mold clamping rod. is there.
【０００７】[0007]
【課題を解決するための手段】したがって上記目的によ
るこの発明の特徴は、中空の型締ラムを有する型締シリ
ンダと、複数本のタイバーをガイドとして進退移動する
可動盤と、上記型締ラム内に出入自在に挿入して先端部
を上記可動盤に連結した型締ロッドと、その型締ロッド
の後端部周囲に設けた所要の係合溝と噛合する一対のチ
ャック部材を、固定ケースに収容して上記型締ラムの前
端に取付けた型締装置において、上記型締ロッドの外径
を上記型締ラムの内径より小径に形成して、上記固定ケ
ースの内周縁を型締ラムの内側に突設するとともに、型
締ロッドの後端に外周面が上記型締ラムの内周面と接
し、かつ端面周縁が上記固定ケースの内端部と接する外
径のガイド部材を型締ロッド後端に一体に連結してなる
ことにある。Therefore, the features of the present invention according to the above-mentioned object are: a mold clamping cylinder having a hollow mold clamping ram; a movable platen which moves back and forth using a plurality of tie bars as guides; A mold clamping rod whose front end is connected to the movable plate and a pair of chuck members which engage with a required engaging groove provided around the rear end of the mold clamping rod are fixed to the fixed case. In the mold clamping device housed and attached to the front end of the mold clamping ram, the outer diameter of the mold clamping rod is formed to be smaller than the inner diameter of the mold clamping ram, and the inner peripheral edge of the fixed case is inside the mold clamping ram. A guide member having an outer diameter whose outer peripheral surface is in contact with the inner peripheral surface of the mold clamping ram and whose peripheral edge is in contact with the inner end of the fixed case at the rear end of the mold clamping rod. It is to be integrally connected to the end.
【０００８】，[0008]
【作 用】上記構成では、型開閉シリンダの作動により
可動盤が型閉方向へ前進移動すると、可動盤に連結され
た型締ラムが型締シリンダ内を前進移動して行く。この
前進移動によりガイド部材は型締ラムの先端部内へと移
動し、型締ラムを内部から支持する。また金型が閉じる
以前に後端のガイド部材の前端周面が固定ケースの内端
部に接し、固定ケースを介して型締ラムを引き出す。[Operation] In the above structure, when the movable plate moves forward in the mold closing direction by the operation of the mold opening / closing cylinder, the mold clamping ram connected to the movable plate moves forward in the mold clamping cylinder. By this forward movement, the guide member moves into the tip portion of the mold clamping ram, and supports the mold clamping ram from the inside. Further, before the mold is closed, the front end peripheral surface of the guide member at the rear end contacts the inner end of the fixed case, and the mold clamping ram is pulled out through the fixed case.
【０００９】これにより型締ロッドと固定ケース及び型
締ラムは、型閉方向に共に前進移動し、また型締ロッド
の後端部の係合溝がチャック部材の部分に位置するの
で、その移動中にチャック部材による型締ラムと型締ロ
ッドとの連結を行う。しかるのちに型締シリンダの作動
により金型の型締が行われる。As a result, the mold clamping rod, the fixed case, and the mold clamping ram move forward together in the mold closing direction, and the engaging groove at the rear end of the mold clamping rod is located at the chuck member. Inside, a mold clamping ram and a mold clamping rod are connected by a chuck member. After that, the mold is clamped by the operation of the mold clamping cylinder.
【００１０】[0010]
【実施例】図中１，２は所要間隔を空けて機台上に対設
した一対の固定盤で、四隅部のタイバー３，３により連
結してある。またタイバー３，３には可動盤４が進退自
在に挿通して設けてあり、この可動盤４と固定盤２の対
向側面に、図では省略したが、金型が分割して取付けら
れる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numerals 1 and 2 denote a pair of fixed plates which are installed on a machine base with a required space therebetween, and are connected by tie bars 3 and 3 at four corners. Further, a movable platen 4 is inserted through the tie bars 3 and 3 so as to be able to move forward and backward, and molds are separately attached to the opposing side faces of the movable platen 4 and the fixed platen 2, although not shown in the drawing.
【００１１】上記固定盤１には、型開閉ストロークより
も長い中空の型締ラム５を有する型締シリンダ６が貫設
してあり、その型締ラム５の内には型締ロッド７が出入
自在に挿入してある。この型締ロッド７の先端部は上記
可動盤４の背部中央に連結してあり、また後端部周囲に
は多数の環状細溝やねじ溝等による噛合用の係合溝８が
設けてある。A mold clamping cylinder 6 having a hollow mold clamping ram 5 longer than the mold opening / closing stroke is provided through the fixed platen 1, and a mold clamping rod 7 is inserted into and removed from the mold clamping ram 5. It is freely inserted. The tip end of this mold clamping rod 7 is connected to the center of the back part of the movable platen 4, and a plurality of annular fine grooves, engagement grooves 8 for engagement by screw grooves, etc. are provided around the rear end part. ..
【００１２】上記型締ロッド７の外径は、上記型締ラム
５の内径より小径で、後端には外周面が上記型締ラム５
の内周面と接する外径の円盤状のガイド部材９が、前後
に位置を調整自在にして一体に連結してある。なお、図
示のものは可動時の摩擦抵抗を軽減するため前部のみ大
径に形成してある。The outer diameter of the mold clamping rod 7 is smaller than the inner diameter of the mold clamping ram 5, and the outer peripheral surface at the rear end is the mold clamping ram 5.
A disk-shaped guide member 9 having an outer diameter that is in contact with the inner peripheral surface is integrally connected so that its position can be adjusted forward and backward. The one shown in the figure is formed with a large diameter only in the front part in order to reduce frictional resistance during movement.
【００１３】１０，１０は上記係合溝８と対応する多数
の凸条を内側面に有する一対の噛合用のチャック部材
で、中央部に上記型締ロッド７の挿通穴を備えた固定ケ
ース１１に収容してあり、その固定ケース１１にはチャ
ック部材１０，１０の作動シリンダ１２，１２が設けて
ある。Numerals 10 and 10 denote a pair of engaging chuck members having a large number of protrusions corresponding to the engaging groove 8 on the inner side surface, and a fixed case 11 having a through hole for the mold clamping rod 7 at the center. The fixed case 11 is provided with working cylinders 12, 12 for the chuck members 10, 10.
【００１４】上記固定ケース１１は、型締ラム５の内径
と型締ロッド７の外径のギャップほど内周縁を型締ラム
５の内側に突出して、該型締ラム５の先端面に一体に設
けられており、型締ロッド７が可動盤４とともに型閉方
向に前進移動したときに、上記ガイド部材９の前端周面
９ａが型締ラム内に突出した内端部１３と接するように
してある。The fixed case 11 has an inner peripheral edge protruding toward the inner side of the mold clamping ram 5 by a gap between the inner diameter of the mold clamping ram 5 and the outer diameter of the mold clamping ram 7 to be integrated with the tip surface of the mold clamping ram 5. When the mold clamping rod 7 moves forward together with the movable platen 4 in the mold closing direction, the front end peripheral surface 9a of the guide member 9 comes into contact with the inner end portion 13 protruding into the mold clamping ram. is there.
【００１５】１６，１６は型開閉シリンダで、シリンダ
側を上記固定盤１に、ロッド１７，１７を可動盤４に取
付けて両盤にわたり設けてある。Numerals 16 and 16 are mold opening / closing cylinders, and the cylinder side is attached to the fixed platen 1 and the rods 17 and 17 are attached to the movable platen 4 so as to extend over both plates.
【００１６】上記構造の型締装置では、図１に示す型開
の状態において、型開閉シリンダ１６，１６の作動によ
り可動盤４が型閉方向へ前進移動すると、始めに型締ロ
ッド７が型締ラム内を前進移動して行く。この前進移動
によりガイド部材は型締ラム５の先端部内へと移動し、
型締ラム５を内部から支持して前下がりを防止する。上
記型締ロッド７もまた固定ケース１１及び型締ラム５内
を前進移動して行く。この前進移動により型締ロッド側
では、金型が閉じる以前に後端のガイド部材９の前端周
面９ａが固定ケース１１の内端部１３に接し、固定ケー
ス１１を介して型締ラム５を引き出すようになる。In the mold clamping device having the above structure, when the movable platen 4 is moved forward in the mold closing direction by the operation of the mold opening / closing cylinders 16 in the mold open state shown in FIG. Move forward in the tightening ram. By this forward movement, the guide member moves into the tip portion of the mold clamping ram 5,
The mold clamping ram 5 is supported from the inside to prevent it from moving down. The mold clamping rod 7 also moves forward in the fixed case 11 and the mold clamping ram 5. Due to this forward movement, on the mold clamping rod side, the front end peripheral surface 9a of the guide member 9 at the rear end contacts the inner end portion 13 of the fixed case 11 before the mold is closed, and the mold clamping ram 5 is fixed via the fixed case 11. Will come out.
【００１７】これにより型締ロッド７と固定ケース１１
及び型締ラム５は、型閉方向に共に前進移動するように
なる。また型締ロッド７の後端部の係合溝８がチャック
部材１０，１０の部分に位置するようになるので、その
移動中に作動シリンダ１２，１２を作動して、チャック
部材１０，１０による型締ラム５と型締ロッド７との一
体的な連結を行うことができる。As a result, the mold clamping rod 7 and the fixed case 11
And the mold clamping ram 5 moves forward together in the mold closing direction. Further, since the engaging groove 8 at the rear end portion of the mold clamping rod 7 comes to be located at the chuck member 10, 10, the operating cylinders 12, 12 are operated during the movement, and the chuck member 10, 10 is operated. The mold clamping ram 5 and the mold clamping rod 7 can be integrally connected.
【００１８】この型締ロッド側の係合溝８とチャック部
材１０，１０との噛合による連結は、ガイド部材９の先
端周面９ａと上記内端部１３との接触を近接スイッチな
どにより検出して行うことが好ましい。The engagement groove 8 on the mold clamping rod side and the chuck members 10, 10 are connected by engaging with each other. The contact between the tip peripheral surface 9a of the guide member 9 and the inner end portion 13 is detected by a proximity switch or the like. It is preferable to carry out.
【００１９】また型締シリンダ６の作動位置は、正規の
型閉位置よりも高圧型開ストロークに相当するだけ型閉
後に型締ラム５を後退させた位置に設定し、この位置よ
り金型が完全に閉じるまでの間に、上記係合溝８とチャ
ック部材１０，１０の噛合を行ない、型閉じが完了した
時点で型締シリンダ６による金型の型締に切換わる。Further, the operating position of the mold clamping cylinder 6 is set to a position where the mold clamping ram 5 is retracted after the mold is closed by the amount corresponding to the high pressure mold opening stroke from the normal mold closing position, and the mold is moved from this position. The engagement groove 8 and the chuck members 10, 10 are engaged with each other until the mold is completely closed, and when the mold closing is completed, the mold clamping cylinder 6 switches to the mold clamping of the mold.
【００２０】また型開に際しては、まず型締シリンダ６
により型締ラム５を正規の型締位置から上記作動位置ま
で高圧型開を行い、次に型締シリンダ６の作動を停止し
て型開閉シリンダ１６，１６により型開を行う。この型
開により型締ロッド７が型締ラム５内を後退移動するよ
うになって、上記ガイド部材９の前端周面９ａは固定ケ
ース１１の内端部１３より離れて行く。When the mold is opened, first the mold clamping cylinder 6
The mold clamping ram 5 is subjected to high-pressure mold opening from the regular mold clamping position to the above-mentioned operating position, the operation of the mold clamping cylinder 6 is stopped, and the mold opening / closing cylinders 16 and 16 perform mold opening. This mold opening causes the mold clamping rod 7 to move backward in the mold clamping ram 5, and the front end peripheral surface 9a of the guide member 9 moves away from the inner end portion 13 of the fixed case 11.
【００２１】[0021]
【発明の効果】この発明は上述のように、型締ロッド７
の外径を型締ラム５の内径より小径に形成して、固定ケ
ース１１の内周縁を型締ラム５の内側に突設するととも
に、型締ロッド７の後端に外周面が上記型締ラムの内周
面と接し、かつ端面が上記固定ケース１１の内端１３と
接する外径のガイド部材９を型締ロッド後端に一体に連
結してなることから、ガイド部材を介して型締ラムによ
り型締ロッドを支持することができる。このため型開閉
ストロークが長くなって型締ロッドの突出長さが大きく
なっても、型締ロッドが前下がり状態になって可動盤に
負担が掛かるようなことがない。したがって金型の型厚
に影響されることなく、常に高精度の型閉を行うことが
できる。According to the present invention, as described above, the mold clamping rod 7 is used.
Is formed to have an outer diameter smaller than the inner diameter of the mold clamping ram 5, the inner peripheral edge of the fixed case 11 is projected inside the mold clamping ram 5, and the outer peripheral surface is formed at the rear end of the mold clamping rod 7. A guide member 9 having an outer diameter that is in contact with the inner peripheral surface of the ram and whose end surface is in contact with the inner end 13 of the fixed case 11 is integrally connected to the rear end of the mold clamping rod. The clamping rod can be supported by the ram. Therefore, even if the mold opening / closing stroke is lengthened and the protrusion length of the mold clamping rod is increased, the mold clamping rod is not lowered and the movable plate is not overloaded. Therefore, it is possible to always perform highly accurate mold closing without being affected by the mold thickness of the mold.
【００２２】また型締ロッドの後端にガイド部材を連結
するだけでよいので構造が特に複雑となるようなことも
なく、ガイド部材の前後位置を調整して、チャック部材
と係合溝の位置を一致させることもできるため、チャッ
ク部材を介しての型締ラムと型締ロッドの連結を確実に
行うことができ、噛合不良による型締ロッドの損傷を防
止することができる。Further, since it suffices to connect the guide member to the rear end of the mold clamping rod, the structure is not particularly complicated, and the positions of the chuck member and the engaging groove are adjusted by adjusting the front and rear positions of the guide member. Since the mold clamping ram and the mold clamping rod can be reliably connected via the chuck member, damage to the mold clamping rod due to poor meshing can be prevented.
【００２３】さらにまた、ガイド部材の前端周面を型締
ロッド側の固定ケースの内端部に当接し、型締ラムを共
に移動させてチャック部材を型締ロッドに噛合できるよ
うにしたことから、噛合のための一端停止を行う必要も
なく、その分だけ型締時間を短縮することができる等の
利点を有する。Furthermore, the front end peripheral surface of the guide member is brought into contact with the inner end portion of the fixed case on the mold clamping rod side, and the mold clamping ram is moved together so that the chuck member can be engaged with the mold clamping rod. There is an advantage that the mold clamping time can be shortened by that amount without the need to stop once for meshing.
【図面の簡単な説明】[Brief description of drawings]
【図１】 この発明に係る型締装置の型開状態における
断面図である。FIG. 1 is a sectional view of a mold clamping device according to the present invention in a mold open state.
【図２】 同じく型閉状態における断面図である。FIG. 2 is a sectional view of the same in a mold closed state.
【符号の説明】 １ 固定盤 ２ 固定盤 ３ タイバー ４ 可動盤 ５ 型締ラム ６ 型締シリンダ ７ 型締ロッド ８ 係合溝 ９ ガイド部材 ９ａ 前端周面 １０ チャック部材 １１ 固定ケース １２ 作動シリンダ １３ 内端部 １４ 外端部 １５ 押戻しブロック １６ 型開閉シリンダ １７ 型開閉シリンダロッド[Explanation of symbols] 1 fixed plate 2 fixed plate 3 tie bar 4 movable plate 5 mold clamping ram 6 mold clamping cylinder 7 mold clamping rod 8 engagement groove 9 guide member 9a front end peripheral surface 10 chuck member 11 fixed case 12 working cylinder 13 inside End 14 Outer end 15 Push-back block 16 Type open / close cylinder 17 Type open / close cylinder rod
Claims (1)
と、複数本のタイバーをガイドとして進退移動する可動
盤と、上記型締ラム内に出入自在に挿入して先端部を上
記可動盤に連結した型締ロッドと、その型締ロッドの後
端部周囲に設けた所要の係合溝と噛合する一対のチャッ
ク部材を、固定ケースに収容して上記型締ラムの前端に
取付けた型締装置において、 上記型締ロッドの外径を上記型締ラムの内径より小径に
形成して、上記固定ケースの内周縁を型締ラムの内側に
突設するとともに、型締ロッドの後端に外周面端面周縁
が上記型締ラムの内周面と接し、かつ端面が上記固定ケ
ースの内端部と接する外径のガイド部材を、上記型締ロ
ッドの後端に一体に連結してなることを特徴とする型締
装置。1. A mold clamping cylinder having a hollow mold clamping ram, a movable plate which moves forward and backward using a plurality of tie bars as guides, and a movable plate which is inserted into and retracted from the mold clamping ram so that a tip portion of the mold clamp ram is mounted on the movable plate. A mold clamping rod which is connected to the mold clamping rod and a pair of chuck members that engage with a required engagement groove provided around the rear end of the mold clamping rod is housed in a fixed case and attached to the front end of the mold clamping ram. In the apparatus, the outer diameter of the mold clamping rod is formed to be smaller than the inner diameter of the mold clamping ram, the inner peripheral edge of the fixed case is projected inside the mold clamping ram, and the outer periphery is formed at the rear end of the mold clamping rod. A guide member having an outer diameter whose end edge is in contact with the inner peripheral surface of the mold clamping ram and whose end surface is in contact with the inner end of the fixed case is integrally connected to the rear end of the mold clamping rod. The characteristic mold clamping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3359141A JP2704573B2 (en) | 1991-12-28 | 1991-12-28 | Mold clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3359141A JP2704573B2 (en) | 1991-12-28 | 1991-12-28 | Mold clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05177642A true JPH05177642A (en) | 1993-07-20 |
| JP2704573B2 JP2704573B2 (en) | 1998-01-26 |
Family
ID=18462956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3359141A Expired - Fee Related JP2704573B2 (en) | 1991-12-28 | 1991-12-28 | Mold clamping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2704573B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1287966A1 (en) * | 2001-08-29 | 2003-03-05 | Battenfeld GmbH | Positioning of a clamping cassette |
| JP2010000658A (en) * | 2008-06-19 | 2010-01-07 | Nissei Plastics Ind Co | Direct-pressure type mold clamping device of injection molding machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3016211U (en) * | 1995-03-24 | 1995-09-26 | 樫原株式会社 | Tension pole support |
-
1991
- 1991-12-28 JP JP3359141A patent/JP2704573B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3016211U (en) * | 1995-03-24 | 1995-09-26 | 樫原株式会社 | Tension pole support |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1287966A1 (en) * | 2001-08-29 | 2003-03-05 | Battenfeld GmbH | Positioning of a clamping cassette |
| JP2010000658A (en) * | 2008-06-19 | 2010-01-07 | Nissei Plastics Ind Co | Direct-pressure type mold clamping device of injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2704573B2 (en) | 1998-01-26 |
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