JPS61189859A - Mold clamping device for vertical type injection molding machine - Google Patents

Mold clamping device for vertical type injection molding machine

Info

Publication number
JPS61189859A
JPS61189859A JP2833985A JP2833985A JPS61189859A JP S61189859 A JPS61189859 A JP S61189859A JP 2833985 A JP2833985 A JP 2833985A JP 2833985 A JP2833985 A JP 2833985A JP S61189859 A JPS61189859 A JP S61189859A
Authority
JP
Japan
Prior art keywords
fixed
mold
rack
injection molding
pinion
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
Application number
JP2833985A
Other languages
Japanese (ja)
Other versions
JPH0259022B2 (en
Inventor
Kazutoshi Yakemoto
数利 焼本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP2833985A priority Critical patent/JPS61189859A/en
Publication of JPS61189859A publication Critical patent/JPS61189859A/en
Publication of JPH0259022B2 publication Critical patent/JPH0259022B2/ja
Granted legal-status Critical Current

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
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • 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
    • B29C2045/648—Rack and pinion means for mould opening and closing a pair of mould halves

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To improve an opening and closing speed by the constitution consisting in fixing pinions meshed with a rack on the bottom surface side of a stationary plate fixed with a stationary mold to the tie bar side and revolving forward and backward brake motors which drive the pinions thereby moving vertically the upper movable plate with respect to the stationary plate. CONSTITUTION:The reversible motors 7, 7 are rotated forward in an arrow direction. The lower movable plate 3 is lowered together with the upper movable plate 2 by the effect of the pinions 6, 6 meshed with the rack 5 to mate both molds 1a, 2a and to clamp further the molds. The driving source for the motors 7, 7 is cut off and the motors are braked by the operation of a limit switch, etc. not shown. The motors 7, 7 are run backward in the arrow directions upon ending of the injection molding and the movable plate 3 is raised together with the plate 2 by the effect of the pinions 6, 6 meshed with the rack 5 to open both molds 1a, 2a. The driving source for the two motors 7, 7 is cut off and the motors are braked by the operation of the limit switch, etc.not shown after the substantial mold opening is completed.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、竪型射出成形機の型締装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a mold clamping device for a vertical injection molding machine.

（従来の技術） 第７図に従来の代表的な竪型射出成形機の型締装置を示
す。(Prior Art) FIG. 7 shows a mold clamping device of a typical conventional vertical injection molding machine.

１は基盤２０に固定された固定盤であり、固定金型１＆
を固定しである。２は上側可動盤でらフ、移動金型２＆
を固定しである。１３は中心部に油道１３ａを設けた下
側可動盤でちり、固定盤１に設けた通孔に案内されて上
下動可能な４本のタイバー１４　、　ｌ　４　、１４’
　、　ｌ　４’にて上側可動盤２と連結されている。１
５は型締シリンダであり、上端は中心部に突設したブー
スタラム１６と共に固定盤ｌの下面に固定され、下端部
には通孔１５ａ′を有するシリンダカッ々−１５ａを固
定しておる。1 is a fixed plate fixed to a base 20, and a fixed mold 1 &
It is fixed. 2 is the upper movable platen, movable mold 2 &
It is fixed. Reference numeral 13 denotes a lower movable plate with an oil passage 13a in the center, and four tie bars 14, 14, 14' that can be moved up and down guided by through holes provided in the fixed plate 1.
, l4' are connected to the upper movable platen 2. 1
Reference numeral 5 designates a mold clamping cylinder, the upper end of which is fixed to the lower surface of the stationary plate l together with a booster ram 16 protruding from the center, and a cylinder bracket 15a having a through hole 15a' is fixed to the lower end.

１フは型締シリンダ１５と対をなすぜストンであり、ピ
ストンヘッド１７ｍにはブースタラム１６が摺動可能に
嵌合する通孔１７＆′を設け、円筒状をなすスカート部
１７ｂは、その下端を下側可動盤１３の上面に固定され
て、シリンダ力Ｊ−の通孔１５＆′と油密を保持して摺
動し得る。1f is a piston that pairs with the mold clamping cylinder 15, and the piston head 17m is provided with a through hole 17&' into which the booster ram 16 is slidably fitted, and the cylindrical skirt portion 17b has a lower end thereof. It is fixed to the upper surface of the lower movable platen 13 and can slide in an oil-tight manner with the through hole 15 &' of the cylinder force J-.

上記のようにして、′スカート部１７ｂ内に油室Ａ１ス
カート部１７ｂの外周面と型締シリンダ１５の内周面と
の間に油室Ｂ、またピストンヘッド１７ａ上面と型締シ
リンダ１５の上部内周面との間に油室Ｃを形成しである
。そして、油室Ｂおよび油室Ｃにはそれぞれ図外の圧油
の給排口を設けである。As described above, there is an oil chamber B in the skirt portion 17b between the outer circumferential surface of the skirt portion 17b and the inner circumferential surface of the mold clamping cylinder 15, and the upper surface of the piston head 17a and the upper portion of the mold clamping cylinder 15. An oil chamber C is formed between the inner peripheral surface and the inner peripheral surface. The oil chamber B and the oil chamber C are each provided with a pressure oil supply/discharge port (not shown).

油室Ａに圧油を導入して上側可動盤２が下降して固定金
型１＆と移動金型２＆との型合せがなされ、更に油室Ｃ
に圧油を導入して型締めがなされ、次いで両油室Ａ、Ｃ
の圧油を排出しつつ、油室Ｂに圧油を導入すれば、上側
可動盤２が上昇して移動金型２ａと固定金型１ａとの型
開きがなされる。Pressure oil is introduced into the oil chamber A, the upper movable platen 2 is lowered, the fixed mold 1& and the movable mold 2& are matched, and then the oil chamber C
The mold is clamped by introducing pressure oil into both oil chambers A and C.
When pressure oil is introduced into the oil chamber B while discharging the pressure oil, the upper movable platen 2 rises and the movable mold 2a and the fixed mold 1a are opened.

（発明が解決しようとする問題点） 従来の竪型射出成形機の型締装置は、上記のような構成
であったために下記のような問題点があった。(Problems to be Solved by the Invention) The mold clamping device of a conventional vertical injection molding machine had the above-mentioned configuration, and therefore had the following problems.

（イ）　固定金型ｌ＆の取付は位置が高く、作業が困難
であつ九。(a) The fixed mold l& is located at a high position and is difficult to install.

型開閉ストローク長をＳとし、型締シリンダ１５の底の
厚さｔｌ、ｅストンヘッド１７ｍの厚さｔ２、シリンダ
カバー１５ｍの厚さｔ、とすれば型締シリンダ１５の長
さはｔ、＋ｔ、＋ｔ、＋ｓ＋ΔＳで、この値は約２８と
なり、更に下側可動盤１３のストローク長、下側可動盤
１３の厚さ、固定盤１の厚さ等を加えれば基礎平面りか
ら固定金型１ａまでの高さは相当に高くなシ、踏台を設
けて製品取出後のノ；す取フや、固定金型１ａの部品組
立等を行う必要を生じ、作業が困難であり、従ってオー
トメーション工程にこのような竪型射出成形機の組入れ
に問題があった。If the mold opening/closing stroke length is S, the bottom thickness of the mold clamping cylinder 15 is tl, the thickness of the e-stone head 17m is t2, and the thickness of the cylinder cover 15m is t, then the length of the mold clamping cylinder 15 is t, +t. , +t, +s+ΔS, this value is approximately 28, and if you add the stroke length of the lower movable platen 13, the thickness of the lower movable platen 13, the thickness of the fixed platen 1, etc., the fixed mold 1a can be changed from the base plane. The height is quite high, and it is necessary to install a step stool to remove the product and assemble the parts of the fixed mold 1a, making the work difficult. There was a problem in incorporating such a vertical injection molding machine.

（ａｌ　　型開閉速度が遅かった。(Al Mold opening/closing speed was slow.

ぎストン１７外局面と型締シリンダ１５の内周面とは油
密を保持して摺動するために摺動抵抗が大きく、従って
型開閉速度が遅かった。Since the outer surface of the piston 17 and the inner peripheral surface of the mold clamping cylinder 15 slide while maintaining oil tightness, the sliding resistance is large, and therefore the mold opening/closing speed is slow.

（／−９上・下回動盤２，１３が自重にて落下し、両金
型１ａ、２ｍを破損することがめった。(/-9 Upper and lower moving plates 2 and 13 fell under their own weight, and both molds 1a and 2m were rarely damaged.

型開きの状態で長時間放置しておくと、ピストン１７の
外周面と型締シリンダ１５の内周面との間の微少な油洩
れのために上・下回動盤２，１３が徐々に落下して両会
゛型１ａ、２ｍが衝突して破損することがあった。If the mold is left open for a long time, the upper and lower moving plates 2 and 13 will gradually become damaged due to minute oil leaks between the outer circumferential surface of the piston 17 and the inner circumferential surface of the mold clamping cylinder 15. There were cases where the two-way type 1a and 2m collided with each other due to falling and were damaged.

に）大流量の作動油を必要とした。) required a large flow of hydraulic oil.

型閉工程では、油室入に作動油を送ると共に油室Ｃには
プレフィル弁等を介して作動油を送り込むことを要する
が、油室Ｃは型締工程にて高圧の作動油を送り込んで所
定の型締力を発生させるためにピストンヘッド１７ａの
面積は大きく、従って、型開閉工程には型締シリンダ１
５へ大流量の作動油を給排することになる。In the mold closing process, it is necessary to send hydraulic oil to the oil chamber inlet and to oil chamber C via a prefill valve, etc., but high pressure hydraulic oil is sent to oil chamber C during the mold clamping process. The area of the piston head 17a is large in order to generate a predetermined mold clamping force, and therefore the mold clamping cylinder 1 is used in the mold opening/closing process.
5 will be supplied with a large flow of hydraulic oil.

（問題点を解決するための手段） 本発明は、従来の竪型射出成形機の型締装置の上記のよ
うな問題点を解決するためになされたものであり、その
第１発明の要旨は、移動金型を固定した上側可動盤を固
定金型を固定した固定盤に対してタイバーにて上下動さ
せる竪型射出成形機の型締装置において、固定盤の下面
側にラックまたはピニオンを固定し、前記のラックと噛
合するピニオンまたは前記のピニオンに噛合するラック
をタイツ々−側に固定し、ピニオンを駆動するブレーキ
付可逆モータを設け、該モータを正ま九は逆に回転させ
て上側可動盤を固定盤に対して上下動させる竪型射出成
形機の型締装置である。(Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems of the mold clamping device of a conventional vertical injection molding machine, and the gist of the first invention is In the mold clamping device of a vertical injection molding machine, the upper movable platen on which a movable mold is fixed is moved up and down with a tie bar against the fixed platen on which a fixed mold is fixed, a rack or pinion is fixed to the lower side of the fixed platen. Then, a pinion that meshes with the rack or a rack that meshes with the pinion is fixed to the lower side of the tights, a reversible motor with a brake is provided to drive the pinion, and the motor is rotated in the opposite direction to the upper side. This is a mold clamping device for a vertical injection molding machine that moves the movable platen up and down relative to the fixed platen.

また第２発明の要旨は、移動金型を固定した上側可動盤
を固定金型を固定した固定盤に対してタイバーにて上下
動させる竪型射出成形機の型締装置において、固定盤の
下面側にラックまたはピニオンを固定し、前記のラック
と噛合するピニオンまたは前記のピニオンに噛合するラ
ックをタイバー側に固定し、−ニオンを駆動するブレー
キ付可逆モータを設け、かつ上側可動盤にピストンを嵌
合するシリンダを形成し、該ピストンの下面に移動金型
を固定し、該モータを正または逆に回転させて上側可動
盤を固定盤に対して上下動させると共にシリンダに圧油
を導入して型締めを完了させる竪型射出成形機の型締装
置でろる。The gist of the second invention is to provide a mold clamping device for a vertical injection molding machine in which an upper movable plate to which a movable mold is fixed is moved up and down with a tie bar with respect to a fixed plate to which a fixed mold is fixed. A rack or pinion is fixed to the side, a pinion that meshes with the rack or a rack that meshes with the pinion is fixed to the tie bar side, a reversible motor with a brake is provided to drive the rack, and a piston is mounted on the upper movable platen. A cylinder to be fitted is formed, a movable mold is fixed to the lower surface of the piston, and the motor is rotated in the forward or reverse direction to move the upper movable plate up and down relative to the fixed plate while introducing pressure oil into the cylinder. The mold clamping device of the vertical injection molding machine completes mold clamping.

（作　用） 第１発明においては、固定盤の下面側に設けたラックま
たはピニオンが上側可動盤に連結するタイバー側に設け
られたピニオンまたはラックと噛合しているので、ブレ
ーキ付可逆モータにて正または逆にピーオンを回転させ
ることによって、移動可能なタイツ々−が移動して上側
可動盤を固定盤に対して上下動させて移動金型を固定金
型に対して型合せ、型締め、および型開きがなされる。(Function) In the first invention, since the rack or pinion provided on the lower surface of the fixed platen meshes with the pinion or rack provided on the tie bar side connected to the upper movable platen, the reversible motor with brake By rotating the peon in the forward or reverse direction, the movable tights move and move the upper movable plate up and down relative to the fixed plate to align the movable mold with the fixed mold, clamp the mold, and the mold is opened.

また、第２発明においては、第１発明と同様に作用して
型合せ、型締めおよび型開きを行うと共にシリンダに圧
油を導入して移動金型を固定したピストンを押し下げる
ことによって大きな締付は力を与えて型締めを完了させ
る。In addition, in the second invention, in the same manner as the first invention, the molds are matched, the molds are clamped, and the molds are opened, and pressure oil is introduced into the cylinder to push down the piston that fixes the movable mold, thereby causing large clamping. gives force and completes mold clamping.

（実施例） 第１図〜３図に基づいて、本発明に係る竪型射出成形機
の型締装置の第１実施例を説明する。(Example) A first example of a mold clamping device for a vertical injection molding machine according to the present invention will be described based on FIGS. 1 to 3.

１は固定金型１ａを固定して基盤２０に固定された固定
盤、２は移動金型２ａを固定した上側可動盤でおる。４
，４′はタイバーでろシ、固定盤ｌに設けた通孔に案内
され、上側可動盤２と下側可動盤３とを連結して上下動
し得る。下側可動盤３には角孔３凰を設け、該角孔３ａ
には固定盤２の下面に固設され、両側面に歯部を有する
型開閉ストローク長Ｓより若干長目のラック５ｔ−垂下
させである。そして、下側可動盤３には油圧または電気
で駆動されるブレーキ付可逆モータ７．７が固定され、
該両モータ７．７の軸に固定されたピニオン６．６をラ
ック５の両側の歯部に噛合させである。Reference numeral 1 denotes a fixed plate which is fixed to a base 20 with a fixed mold 1a fixed thereon, and 2 is an upper movable plate which has a movable mold 2a fixed thereon. 4
, 4' are guided by tie bars through holes provided in the fixed platen l, and can be moved up and down by connecting the upper movable platen 2 and the lower movable platen 3. The lower movable platen 3 has three square holes, and the square holes 3a
The rack 5t is fixed to the lower surface of the stationary platen 2 and has teeth on both sides, and is slightly longer than the mold opening/closing stroke length S. A reversible motor 7.7 with a brake that is hydraulically or electrically driven is fixed to the lower movable platen 3.
Pinions 6.6 fixed to the shafts of both motors 7.7 are meshed with teeth on both sides of the rack 5.

次に作用について説明する。Next, the effect will be explained.

第１図において可逆モータ７．７ｔ−矢印方向に正回転
させれば、ラック５に噛合するピニオン６゜６０作用に
よって下側可動盤３は上側可動盤２ｊ−伴って下降し、
両金型１ｍ、２ａは型合せされ、更に型締めされる（第
２図参照）。型締め終了後は、図外のリミットスイッチ
等の作動によって両可逆モータ７．７の駆動源をカット
すると共に制動する。In FIG. 1, when the reversible motor 7.7t is rotated forward in the direction of the arrow, the lower movable platen 3 is lowered together with the upper movable platen 2j by the action of the pinion 6°60 that meshes with the rack 5.
Both molds 1m and 2a are matched and further clamped (see Fig. 2). After the mold clamping is completed, the driving source of both reversible motors 7.7 is cut off and the motors are braked by operating a limit switch (not shown) or the like.

射出成形終了後は、第２図に示すように可逆モータ７．
７を矢印方向に逆回転させれば１．ラック５に噛合する
ピニオン６．６の作用によって下側可動盤３は上側可動
盤２ｔ−伴って上昇し両金型１ｍ、２ｍは型開きされる
。充分な型開きが完了した後は図外のリミットスイッチ
等の作動によって両可逆モータ７．７の駆動源をカット
すると共に制動する。After the injection molding is completed, the reversible motor 7.
1 by rotating 7 in the direction of the arrow. By the action of the pinion 6.6 meshing with the rack 5, the lower movable platen 3 rises together with the upper movable platen 2t, and both molds 1m and 2m are opened. After sufficient mold opening is completed, the drive source of both reversible motors 7.7 is cut off and braked by operating a limit switch (not shown) or the like.

第４図、５図に基づいて第２実施例を説明する。A second embodiment will be described based on FIGS. 4 and 5.

第１実施例と同符号は同部分を示し、説明を省略する。The same reference numerals as in the first embodiment indicate the same parts, and the explanation will be omitted.

８は、固定盤１の下側において、４本のタイバーのうち
相隣る両タイ・々−４，４′を連結する連結板であり、
各連結板８．８のほぼ中央部に型開閉ストローク長Ｓよ
り若干長目のラック５′、ダを垂設しである。ブレーキ
付の可逆モータ７は、固定盤ｌの下面に固定され、該モ
ータ７に直結された大歯車７＆はピニオン６′を介して
一方のラックダに噛合し、更に遊び歯車７’ａを介して
ピニオ／６′が他方のラック５′に噛合している。従っ
て、該可逆モータ７の正、逆の回転によって両うックダ
。8 is a connecting plate that connects both adjacent ties 4 and 4' of the four tie bars on the lower side of the fixed platen 1;
A rack 5', slightly longer than the mold opening/closing stroke length S, is vertically disposed approximately at the center of each connecting plate 8.8. A reversible motor 7 with a brake is fixed to the lower surface of a stationary plate l, and a large gear 7 & directly connected to the motor 7 meshes with one rack gear via a pinion 6', and further engages with one rack gear via an idle gear 7'a. The pinio/6' is meshed with the other rack 5'. Therefore, by rotating the reversible motor 7 in the forward and reverse directions, both outputs are generated.

ダは同速度で上下動し、ひいては上側可動盤２を上下動
させて第１実施例と同様に両金型１＆、２１にの型合せ
、型締めあるいは型開きがなされる。The molds move up and down at the same speed, which in turn causes the upper movable platen 2 to move up and down, allowing the molds 1 & 21 to be fitted, clamped, or opened in the same way as in the first embodiment.

第６図に基づいて第３実施例を説明する。A third embodiment will be described based on FIG.

第１実施例と同符号は同部分を示し、説明を省略する。The same reference numerals as in the first embodiment indicate the same parts, and the explanation will be omitted.

第１．２実施例においては、型締めのためには比較的大
容量の可逆モータを必要とする。第３実施例は、比較的
小容量の可逆モータを使用し、または特に大きな型締力
を必要とする場合に、型締力を上側可動盤にて付加する
構造の型締装置である。In the first and second embodiments, a relatively large capacity reversible motor is required for mold clamping. The third embodiment is a mold clamping device that uses a relatively small-capacity reversible motor or when a particularly large mold clamping force is required, the mold clamping force is applied by an upper movable platen.

９は上側可動盤でアク、天板の中央部に油道ｌＯ＆を設
けたシリンダ本体ｌＯと、シリンダ本体１０に嵌合する
ピストン１１およびシリンダカバー１２とよシなる。そ
してピ、ストン１１の下面には移動金型２ａが固定され
、ピストンヘッド１１ａの下面周縁とピストンカバー１
２の内面周縁部との間には、移動金型ｚ＆が固定金型１
ａに当接した状態にて間隙δを保有するようになってい
る。また、シリンダカバー１２は、４本のタイバー４，
４゜４／　、　４／の上端に固定されている。Reference numeral 9 denotes an upper movable plate, which is made up of a cylinder body lO having an oil passage lO& in the center of the top plate, a piston 11 and a cylinder cover 12 that fit into the cylinder body 10. A movable mold 2a is fixed to the lower surface of the piston 11, and a movable mold 2a is fixed to the lower surface of the piston head 11a and the piston cover 1.
The movable mold z& is between the fixed mold 1 and the inner peripheral edge of the fixed mold 1.
A gap δ is maintained in the state of contact with a. The cylinder cover 12 also includes four tie bars 4,
4°4/, fixed to the upper end of 4/.

次に作用について説明する。Next, the effect will be explained.

先ず、第１実施例と同様にブレーキ付の可逆モータ７．
７を正回転させて、ピニオン６とラック５とによって上
側可動盤９を降下させて、移動金型２ａを固定金型１ａ
に型合せする。可逆モータ７．７を制動状態として、シ
リンダ本体゛１０内に圧油を導入してピストン１１を作
動させて間隙δの範囲内にて移動金型２ａを固定金型１
ａに押付けて型締めを完了する。First, as in the first embodiment, a reversible motor 7 with a brake is used.
7 in the forward direction, the upper movable platen 9 is lowered by the pinion 6 and the rack 5, and the movable mold 2a is moved to the fixed mold 1a.
Match the pattern to. With the reversible motor 7.7 in a braking state, pressure oil is introduced into the cylinder body 10 and the piston 11 is actuated to move the movable mold 2a to the fixed mold 1 within the range of the gap δ.
Press to a to complete mold clamping.

射出成形終了後は、第１実施例と同様にして上側可動盤
９を上昇させると共にシリンダ本体１０内の圧油を排出
する。After the injection molding is completed, the upper movable platen 9 is raised and the pressure oil in the cylinder body 10 is discharged in the same manner as in the first embodiment.

なお、かかる構造の上側可動盤９を第２実施例の上側可
動盤としても用いられることは勿論である。It goes without saying that the upper movable platen 9 having such a structure can also be used as the upper movable platen of the second embodiment.

（発明の効果） 以上の説明によって理解されるように本発明によれば下
記の効果が得られる。(Effects of the Invention) As understood from the above explanation, the present invention provides the following effects.

（イ）基礎平面から固定盤までの高さは、型開閉ストロ
ーク長より若干大きい程度となるので固定金型の取付は
位置を従来例に比して低下でき、作業が容易となり、ま
たオートメーション工程への組入れに問題がなくなった
。(b) The height from the foundation plane to the fixed platen is slightly larger than the mold opening/closing stroke length, so the fixed mold installation position can be lowered compared to conventional models, making work easier and automation process There was no problem with incorporating it into.

（ロ）型開閉をラックとピニオンで行うことによって開
閉速度を向上できた。(b) Opening and closing speed was improved by opening and closing the mold using a rack and pinion.

（／慢　　ブレーキ付き可逆モータの採用によって型開
きの状態で長時間放置しておいても上側可動盤の自重に
よる落下が阻止され、金型の破損事故防止が図られた。By using a reversible motor with a brake, the upper movable platen is prevented from falling due to its own weight even if the mold is left open for a long time, thereby preventing mold damage.

に）大流量の作動油を必要としなくなった。) No longer requires large flow of hydraulic oil.

上記の効果に加え、第２発明においては、ピストンにて
締付は力が得られるので、ブレーキ付き可逆モータを小
形にできる。In addition to the above-mentioned effects, in the second invention, the tightening force is obtained by the piston, so that the reversible motor with a brake can be made smaller.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本発明の第１実施例の型開き状態を示す一部
切開した正面図、第２図は、同じく型締状態を示す正面
図、第３図は、同底面図、第４図は、第２実施例を示す
一部切開した正面図、第５図は、第４図のＶ−Ｖ線断面
図、第６図は、第３実施例の凰合せ状態を示す一部切開
した正面図、第７図は、竪型射出成形機の型締装置の従
来例を示す一部切開した正面図である。 １：固定盤、１ａ：固定金型、２，９：上側可動盤、２
ａ：移動金型、３：下側可動盤、３ａ：角孔、４　、４
’　：タイパー、５　、５’　ニラツク、６，６′：ピ
ニオン、７：ブレーキ付可逆モータ、７ａ：大歯車、７
′ａ：遊び歯車、８：連結板、１０ニジリンダ本体、１
１：ピストン、ｌｌａ：ピストンヘッド、１２ニジリン
ダカバー、２０：基盤、Ｌ：基礎平面。 代理人弁理士　前　１）利　之（ほか１名）第１図 第２図 第３図 す 第４図 第５図 第６図 第７図FIG. 1 is a partially cutaway front view showing the first embodiment of the present invention in the mold open state, FIG. 2 is a front view similarly showing the mold clamping state, FIG. 3 is a bottom view of the same, and FIG. The figure is a partially cutaway front view showing the second embodiment, FIG. 5 is a sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a partially cutaway showing the third embodiment in a folded state. FIG. 7 is a partially cutaway front view showing a conventional example of a mold clamping device for a vertical injection molding machine. 1: Fixed plate, 1a: Fixed mold, 2, 9: Upper movable plate, 2
a: Movable mold, 3: Lower movable platen, 3a: Square hole, 4, 4
' : Typer, 5, 5' Nirakku, 6, 6': Pinion, 7: Reversible motor with brake, 7a: Large gear, 7
'a: Idle gear, 8: Connecting plate, 10 Niji cylinder body, 1
1: piston, lla: piston head, 12 cylinder cover, 20: base, L: foundation plane. Representative Patent Attorney 1) Toshiyuki (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

【特許請求の範囲】 １、移動金型を固定した上側可動盤を固定金型を固定し
た固定盤に対してタイバーにて上下動させる竪型射出成
形機の型締装置において、固定盤の下面側にラックまた
はピニオンを固定し、前記のラックと噛合するピニオン
または前記のピニオンに噛合するラックをタイバー側に
固定し、ピニオンを駆動するブレーキ付可逆モータを設
け、該モータを正または逆に回転させて上側可動盤を固
定盤に対して上下動させることを特徴とする竪型射出成
形機の型締装置。 ２、移動金型を固定した上側可動盤を固定金型を固定し
た固定盤に対してタイバーにて上下動させる竪型射出成
形機の型締装置において、固定盤の下面側にラックまた
はピニオンを固定し、前記のラックと噛合するピニオン
または前記のピニオンに噛合するラックをタイバー側に
固定し、ピニオンを駆動するブレーキ付可逆モータを設
け、かつ上側可動盤にピストンを嵌合するシリンダを形
成し、該ピストンの下面に移動金型を固定し、該モータ
を正または逆に回転させて上側可動盤を固定盤に対して
上下動させると共にシリンダに圧油を導入して型締めを
完了させることを特徴とする竪型射出成形機の型締装置
。 ３、両側面に歯部を有するラックを固定盤に設け、該ラ
ックに噛合する一対のピニオンをタイバー側に設けた特
許請求の範囲第１項または第２項記載の竪型射出成形機
の型締装置。 ４、一対のラックをタイバー側に設け、該ラックに噛合
する一対のピニオンを固定盤側に設けた特許請求の範囲
第１項または第２項記載の竪型射出成形機の型締装置。[Scope of Claims] 1. In a mold clamping device for a vertical injection molding machine in which an upper movable plate to which a movable mold is fixed is moved up and down with a tie bar relative to a fixed plate to which a fixed mold is fixed, the lower surface of the fixed plate A rack or pinion is fixed to the side, a pinion that meshes with the rack or a rack that meshes with the pinion is fixed to the tie bar side, a reversible motor with a brake is provided to drive the pinion, and the motor is rotated in the forward or reverse direction. A mold clamping device for a vertical injection molding machine, characterized in that the upper movable platen is moved up and down with respect to a fixed platen. 2. In the mold clamping device of a vertical injection molding machine, in which the upper movable plate to which the movable mold is fixed is moved up and down with tie bars relative to the fixed plate to which the fixed mold is fixed, a rack or pinion is installed on the lower side of the fixed plate. A pinion that is fixed and meshes with the rack or a rack that meshes with the pinion is fixed to the tie bar side, a reversible motor with a brake is provided to drive the pinion, and a cylinder that fits the piston is formed on the upper movable platen. A movable mold is fixed to the lower surface of the piston, and the motor is rotated in the forward or reverse direction to move the upper movable plate up and down with respect to the fixed plate, and pressure oil is introduced into the cylinder to complete mold clamping. A mold clamping device for a vertical injection molding machine featuring: 3. A mold for a vertical injection molding machine according to claim 1 or 2, wherein a rack having teeth on both sides is provided on the fixed plate, and a pair of pinions meshing with the rack are provided on the tie bar side. Tightening device. 4. A mold clamping device for a vertical injection molding machine according to claim 1 or 2, wherein a pair of racks are provided on the tie bar side, and a pair of pinions that mesh with the racks are provided on the fixed platen side.
JP2833985A 1985-02-18 1985-02-18 Mold clamping device for vertical type injection molding machine Granted JPS61189859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2833985A JPS61189859A (en) 1985-02-18 1985-02-18 Mold clamping device for vertical type injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2833985A JPS61189859A (en) 1985-02-18 1985-02-18 Mold clamping device for vertical type injection molding machine

Publications (2)

Publication Number Publication Date
JPS61189859A true JPS61189859A (en) 1986-08-23
JPH0259022B2 JPH0259022B2 (en) 1990-12-11

Family

ID=12245842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2833985A Granted JPS61189859A (en) 1985-02-18 1985-02-18 Mold clamping device for vertical type injection molding machine

Country Status (1)

Country Link
JP (1) JPS61189859A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266874A (en) * 1989-11-10 1993-11-30 Vickers, Incorporated Drive arrangement for a molding machine
WO2004041509A1 (en) * 2002-11-07 2004-05-21 Oima S.P.A. Column injection moulding press for plastics materials
JP2006320948A (en) * 2005-05-20 2006-11-30 Toshiba Mach Co Ltd Die clamping apparatus and forming machine
JP2010017858A (en) * 2008-07-08 2010-01-28 Towa Corp Resin molding device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266874A (en) * 1989-11-10 1993-11-30 Vickers, Incorporated Drive arrangement for a molding machine
WO2004041509A1 (en) * 2002-11-07 2004-05-21 Oima S.P.A. Column injection moulding press for plastics materials
JP2006320948A (en) * 2005-05-20 2006-11-30 Toshiba Mach Co Ltd Die clamping apparatus and forming machine
JP2010017858A (en) * 2008-07-08 2010-01-28 Towa Corp Resin molding device

Also Published As

Publication number Publication date
JPH0259022B2 (en) 1990-12-11

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