JPH0536218B2 - - Google Patents
Info
- Publication number
- JPH0536218B2 JPH0536218B2 JP60040074A JP4007485A JPH0536218B2 JP H0536218 B2 JPH0536218 B2 JP H0536218B2 JP 60040074 A JP60040074 A JP 60040074A JP 4007485 A JP4007485 A JP 4007485A JP H0536218 B2 JPH0536218 B2 JP H0536218B2
- Authority
- JP
- Japan
- Prior art keywords
- mold clamping
- mold
- ram
- locking plate
- rod
- 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
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は型開閉ごとに型締ラムと型締ロツド
との係合及び解除を行うことによつて、型締シリ
ンダの全長を短くした射出成形機の型締装置に関
するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention is an injection molding system that shortens the overall length of the mold clamping cylinder by engaging and disengaging the mold clamping ram and mold clamping rod each time the mold is opened and closed. This invention relates to a mold clamping device for a molding machine.
［従来の技術］
この種の型締装置は、特開昭49−54462号公報
や特開昭49−67940号公報に開示されているよう
に、中空に形成した型締ラム内に可動盤と連結し
た型締ロツドを挿通しており、型締ラムと型締ロ
ツドの係合と解除は、型締ラム内に回動自在に設
けたストツパーと型締ロツドの後端部の両方に形
成した雄雌スプラインにより行つている。[Prior Art] This type of mold clamping device has a movable platen inside a hollow mold clamping ram, as disclosed in JP-A-49-54462 and JP-A-49-67940. The connected mold clamping rod is inserted through the mold clamping rod, and the engagement and disengagement between the mold clamping ram and the mold clamping rod is achieved by a rotatable stopper provided inside the mold clamping ram and a stopper formed on both the rear end of the mold clamping rod. This is done by male and female splines.
［発明が解決しようとする問題点］
上記従来装置では、型締ロツドの後端に形成し
たフランジと、このフランジより前方の雄スプラ
インとの間に、型締ラム側の回動自在な係止盤を
位置させ、型締時には上記両雄スプラインを介し
て型締力を型締ロツドに伝達しており、また強力
型開時には、ストツパーとフランジとを介して型
開力を型締ロツドに伝達している。[Problems to be Solved by the Invention] In the above-mentioned conventional device, there is a rotatable lock on the mold clamping ram side between the flange formed at the rear end of the mold clamping rod and the male spline in front of this flange. When the plate is positioned and the mold is clamped, the mold clamping force is transmitted to the mold clamping rod through the above-mentioned double male splines, and when the mold is strongly opened, the mold opening force is transmitted to the mold clamping rod through the stopper and flange. ing.
このため、他に設けた移動用シリンダによる型
開閉に際して、移動しつつある雄スプラインやフ
ランジに対してストツパーを出入することは不可
能なことから、高速型締及び強力型開の終了後
に、型締ロツドを一旦停止させてストツパーの回
動を行つている。 For this reason, when opening and closing the mold using another moving cylinder, it is impossible to move the stopper in and out of the moving male spline or flange, so after high-speed mold clamping and strong mold opening, the mold The tightening rod is temporarily stopped and the stopper is rotated.
この型開閉工程における一旦停止は、長時間に
わたる成形作業では大きなタイムロスとなり、成
形時間を短縮化して、生産性を向上させる場合の
１つの問題となつている。 This temporary stop in the mold opening/closing process results in a large time loss in a long molding operation, and is a problem in shortening molding time and improving productivity.
［問題点を解決するための手段］
この発明は上記事情から考えられたものであつ
て、その目的とするところは、可動盤と一体の型
締ロツドを、型開閉などの工程の途中で一旦停止
させることなく、係止盤の回動をもつて型締ラム
と係合または解除することができ、一旦停止によ
るタイムロスを排除した新たな型締装置を提供す
ることにある。[Means for Solving the Problems] This invention was conceived in view of the above circumstances, and its purpose is to temporarily remove the mold clamping rod integrated with the movable platen during the process such as opening and closing the mold. It is an object of the present invention to provide a new mold clamping device that can be engaged with or disengaged from a mold clamping ram by rotating a locking plate without stopping, and eliminating time loss due to temporary stoppage.
上記目的によるこの発明は、機台上に固定した
型締シリンダの型締ラムを中空に形成して先端を
開口し、その型締ラムの先端内部に通孔を有する
係止盤を回動自在に設け、その係止盤を通して可
動盤と連結した型締ロツドを型締ラム内にを挿通
し、かつ型締ラムと型締ロツドとの係合及び解除
を、上記係止盤の内周囲と型締ロツドの後端部外
周囲とに形成した軸方向に係脱自在な複数の突子
と凹所とにより行なう型締装置において、上記型
締ラムの先端開口に、上記型締ロツドの突子と内
側にて接触し、該型締ロツドと型締ラムとを接続
する部材を、上記係止盤との間に所要間隙を空け
て設けてなることにある。 According to the present invention, the mold clamping ram of the mold clamping cylinder fixed on the machine base is formed hollow and has an open tip, and a locking plate having a through hole inside the tip of the mold clamping ram is rotatable. The mold clamping rod connected to the movable plate is inserted into the mold clamping ram through the locking plate, and the engagement and disengagement between the mold clamping ram and the mold clamping rod is controlled by the inner periphery of the locking plate. In a mold clamping device that uses a plurality of axially removable protrusions and recesses formed on the outer periphery of the rear end of the mold clamping rod, the protrusion of the mold clamping rod is inserted into the tip opening of the mold clamping ram. A member that contacts the child on the inside and connects the mold clamping rod and the mold clamping ram is provided with a required gap between it and the locking plate.
［作用］
上記構成では、ロツド後端部の突子が、型締ラ
ム先端の壁部と係止盤との間に位置することか
ら、型締ラムの前進による強力な型締力は、係止
盤と型締ラムの突子を介して型締ロツドに伝達さ
れ、反対に型締ラムが後退したときに生ずる強力
な型開力は、上記接続部材と型締ラムの突子を介
して型締ロツドに伝達される。[Function] In the above configuration, the protrusion at the rear end of the rod is located between the wall at the tip of the mold clamping ram and the locking plate, so the strong mold clamping force generated by the forward movement of the mold clamping ram is applied to the locking plate. The strong mold opening force generated when the mold clamping ram retreats is transmitted to the mold clamping rod via the stop plate and the protrusions of the mold clamping ram. It is transmitted to the mold clamping rod.
また可動盤が移動シリンダによつて高速型閉し
た際には、型締ロツド後端部の突子と型締ラム先
端の接続部材との接触によつて、型締ラムも型閉
方向に移動する。 In addition, when the movable platen closes the mold at high speed by the moving cylinder, the mold clamping ram also moves in the mold closing direction due to the contact between the protrusion at the rear end of the mold clamping rod and the connecting member at the tip of the mold clamping ram. do.
したがつて、係止盤は型締ラムが型締シリンダ
内の油圧により前進するときのみ型締ロツドに作
用し、他のときには自由状態にあることから、型
開閉などの途中にて一旦停止させることなく、係
止盤を回動操作して型締ラムと型締ロツドとの係
合または解除を行うことができる。 Therefore, the locking plate acts on the mold clamping rod only when the mold clamping ram moves forward due to the hydraulic pressure in the mold clamping cylinder, and is in a free state at other times, so it is temporarily stopped in the middle of mold opening/closing, etc. The locking plate can be rotated to engage or disengage the mold clamping ram and mold clamping rod without having to do so.
これを図示の実施例により更に詳細に説明す
る。 This will be explained in more detail with reference to illustrated embodiments.
［実施例］
図中１，２は機台３上に設けた一対の固定盤、
４，４は固定盤１，２にわたり設けられたタイバ
ーで、可動盤５が固定盤２に対し進退自在に取付
けてある。[Example] In the figure, 1 and 2 are a pair of fixed plates provided on the machine base 3,
Numerals 4 and 4 are tie bars provided across the fixed plates 1 and 2, and a movable plate 5 is attached to the fixed plate 2 so as to be movable forward and backward.
６は型締シリンダで、複数の移動用シリンダ
７，７と共に、上記固定盤１に内向きに固着して
ある。この型締シリンダ６は、型締ロツドのスト
ロークを許容できる長さの中空部を有する型締ラ
ム８を備え、その型締ラム８の内部には、上記可
動盤５と連結した型締ロツド９が、型締ラム８の
後記する先端内部の係止盤１３と、その係止盤と
の間に所要間隙を空けて先端開口に設けた接続部
材１０とを貫通して、軸方向に移動自在に挿通し
てある。 A mold clamping cylinder 6 is fixed inward to the stationary platen 1 together with a plurality of moving cylinders 7, 7. The mold clamping cylinder 6 is equipped with a mold clamping ram 8 having a hollow portion long enough to allow the stroke of the mold clamping rod. is freely movable in the axial direction by passing through a locking plate 13 inside the tip of the mold clamping ram 8, which will be described later, and a connecting member 10 provided at the tip opening with a required gap between the locking plate and the locking plate. It is inserted into.
上記型締ロツド９の後端部外周には４つの突子
１１と凹所１１ａとが等間隔にて放射状に形成し
てあり、その突子１１により後端部はロツド径よ
りも大径となつている。 Four protrusions 11 and recesses 11a are radially formed at equal intervals on the outer periphery of the rear end of the mold clamping rod 9, and the protrusions 11 make the rear end have a diameter larger than the rod diameter. It's summery.
また型締ラム８の内部には、上記突子１１と対
応する凹所１２ａと、上記凹所１１ａと対応する
突子１２とを内周囲に形成し、かつ型締ロツド９
の後端部の挿通を許容する孔を中央に有する係止
盤１３が、上記突子１１の外側に近接して回動自
在に設けてある。 Further, inside the mold clamping ram 8, a recess 12a corresponding to the protrusion 11 and a protrusion 12 corresponding to the recess 11a are formed on the inner periphery, and the mold clamping rod 9
A locking plate 13 having a hole in the center through which the rear end portion can be inserted is rotatably provided close to the outside of the protrusion 11 .
この係止盤１３は接続部材１０の斜下方に回動
自在に取付けた油圧シリンダ１４のロツド１５に
アーム１６を介して連結してあり、この油圧シリ
ンダ１４によつて回動する。 This locking plate 13 is connected via an arm 16 to a rod 15 of a hydraulic cylinder 14 rotatably mounted diagonally below the connecting member 10, and is rotated by this hydraulic cylinder 14.
なお、可動盤５は型締シリンダ６に連結した移
動用シリンダ７のピストンロツド１７と連結して
おり、金型１８は固定盤２と可動盤５とに分割し
て取付けてある。 The movable platen 5 is connected to a piston rod 17 of a movable cylinder 7 connected to the mold clamping cylinder 6, and the mold 18 is attached separately to the fixed platen 2 and the movable platen 5.
次に作動について説明する。 Next, the operation will be explained.
第１図に示す型締状態において、型締シリンダ
６の右室に油圧をかけ、型締ラム８を左方へ加圧
すると、上記接続部１０の内側に突子１１が接触
して連繋状態にあることから、型締ロツド９が引
張られて、そこに強力型開が生ずる。 In the mold clamping state shown in FIG. 1, when hydraulic pressure is applied to the right chamber of the mold clamping cylinder 6 and pressure is applied to the mold clamping ram 8 to the left, the protrusion 11 comes into contact with the inside of the connection part 10 and is in a connected state. Because of this, the mold clamping rod 9 is pulled, and a strong mold opening occurs there.
また係止盤１３に対しては何等の力も働いてい
ないので、強力型開工程と並行して上記油圧シリ
ンダ１４により係止盤１３を回動することができ
る。そのため係止盤１３の回動は強力型開が完了
するまでにでき、回動により第２図に示す状態に
重合した突子１１，１２は、係止盤側の突子１２
の位置移動により横にずれ、第３図に示すように
突子１１と凹所１２ａとが重合し型締ロツド９の
後端部は係止盤１３に対して軸方に自由の状態と
なる。 Further, since no force is acting on the locking plate 13, the locking plate 13 can be rotated by the hydraulic cylinder 14 in parallel with the strong mold opening process. Therefore, the locking plate 13 can be rotated before the strong mold opening is completed, and the protrusions 11 and 12 that have overlapped in the state shown in FIG.
3, the protrusion 11 and the recess 12a overlap, and the rear end of the mold clamping rod 9 becomes free in the axial direction with respect to the locking plate 13. .
そこで強力型開に引続いて移動用シリンダ７，
７の右室に油圧を供給すると、ピストンロツド１
７，１７により可動盤５は型締ロツド９と共に左
方へ移動し、そこに高速型開が生ずる。 Therefore, following the strong mold opening, the moving cylinder 7,
When hydraulic pressure is supplied to the right chamber of 7, piston rod 1
7 and 17, the movable platen 5 moves to the left together with the mold clamping rod 9, and high-speed mold opening occurs there.
高速型開限から強力型締に至る工程は、鎖線に
て示す型開状態において、まず移動用シリンダ
７，７の左室に油圧を供給して、ピストンロツド
１７，１７を右方に移動させ、可動盤５を型締ロ
ツド９と共に固定盤２の方向へ移動させる。 In the process from high-speed mold opening to strong mold clamping, in the mold open state shown by the chain line, first, hydraulic pressure is supplied to the left chambers of the moving cylinders 7, 7, and the piston rods 17, 17 are moved to the right. The movable platen 5 is moved toward the fixed platen 2 together with the mold clamping rod 9.
上記型締ロツド９の後端部の突子１１と、係止
盤１３が有する突子１２とは、第３図に示す位置
にあることから、型締ロツド９の後端部は係止盤
１３を通過して上記接続部材１０と接触し、更に
型締ラム８を引張つて型閉方向に移動する。この
移動に並行して、係止盤１３を油圧シリンダによ
り元の位置に回動する。この結果、両方の突子１
１，１２は第２図に示す状態に再び重なるので、
移動用シリンダ７，７による高速型閉じが完了し
た時点で型締シリンダ６の左室に油圧をかけ、型
締ラム８を右方へ加圧すると、その加圧による強
力型締力は、係止盤１３と型締ロツド９の突子１
１，１２とを介して型締ロツド９に伝達され、可
動盤５に伝達される。この結果、高速型閉に引続
いて強力型締が行われる。 Since the protrusion 11 at the rear end of the mold clamping rod 9 and the protrusion 12 of the locking plate 13 are located at the positions shown in FIG. 13 and comes into contact with the connecting member 10, further pulling the mold clamping ram 8 and moving in the mold closing direction. In parallel with this movement, the locking plate 13 is rotated to its original position by a hydraulic cylinder. As a result, both protrusions 1
1 and 12 overlap again with the state shown in Figure 2, so
When high-speed mold closing by the moving cylinders 7, 7 is completed, hydraulic pressure is applied to the left chamber of the mold clamping cylinder 6 and the mold clamping ram 8 is pressurized to the right. Stop plate 13 and protrusion 1 of mold clamping rod 9
1 and 12 to the mold clamping rod 9, and then to the movable platen 5. As a result, strong mold clamping is performed following high-speed mold closing.
上記のように開閉作動する型締装置では、型締
ラム８の可動ストロークによつて固定盤２と可動
盤５との間に取付けられる金型１８の型厚に応じ
て開閉ストロークを調整することができる。 In the mold clamping device that opens and closes as described above, the opening and closing stroke is adjusted according to the mold thickness of the mold 18 installed between the fixed platen 2 and the movable platen 5 by the movable stroke of the mold clamping ram 8. I can do it.
次に使用する金型の型厚が前回使用した金型の
型厚より小さい場合には、分割された金型が互に
接するまで移動用シリンダ７，７により可動盤５
の固定盤２の方向へ前進移動させる。この移動に
より型締ラム８は、接続部材１０の内側面に接触
した突子１１によつて、型締ロツド９を介して停
止するところまで引出され、そこに型締位置が自
動的に設定される。 If the mold thickness of the mold to be used next is smaller than that of the mold used last time, the movable platen 5 is moved by the moving cylinders 7, 7 until the divided molds touch each other.
move it forward in the direction of the fixed platen 2. Due to this movement, the mold clamping ram 8 is pulled out by the protrusion 11 in contact with the inner surface of the connecting member 10 via the mold clamping rod 9 until it stops, and the mold clamping position is automatically set there. Ru.
また反対に金型の型厚が大きい場合には、型取
付前に型締シリンダ６の右室に油圧を供給して、
型締ラム８を後退限まで移動させ、金型を取付け
てから前記の場合と同様に型締する。これにより
型締位置が設定される。 On the other hand, if the mold thickness is large, hydraulic pressure is supplied to the right chamber of the mold clamping cylinder 6 before the mold is installed.
The mold clamping ram 8 is moved to the retraction limit, the mold is attached, and then the mold is clamped in the same manner as in the previous case. This sets the mold clamping position.
［発明の効果］
上記構成によるこの発明では、高速型閉時また
は強力型開時に並行して係止盤を回動して、型締
ラムと型締ロツドとの係合及び解除を行うことが
できるため、型開閉時に一旦停止することなく工
程を連続的に実施することができるので、停止位
置の制御が不要となり、その動作がスムーズとな
るとともに、サイクルタイムを短縮できる。[Effects of the Invention] In the present invention having the above configuration, the locking plate can be rotated in parallel with high-speed mold closing or strong mold opening to engage and disengage the mold clamping ram and mold clamping rod. As a result, the process can be carried out continuously without stopping once when the mold is opened and closed, making it unnecessary to control the stopping position, making the operation smoother and shortening the cycle time.
また高速型閉時には、型閉完了直前に接続部材
と型締ロツド後端部の突子が接触し、型締ラムが
引張られるため、可動盤の移動に対するブレーキ
となり、可動盤の慣性力を吸収するので、スロー
ダウン制御がし易くなる。 In addition, during high-speed mold closing, the connecting member and the protrusion at the rear end of the mold clamping rod come into contact with each other just before the mold closes, and the mold clamping ram is pulled, which acts as a brake against the movement of the movable platen and absorbs the inertial force of the movable platen. Therefore, slowdown control becomes easier.
更にまた型締ラムの移動をもつて型厚調整を行
うことができるため、型厚調整に特別な装置や手
段が不要となり、金型交換に要する時間をも短縮
して能率を向上させることもできる。 Furthermore, since the mold thickness can be adjusted by moving the mold clamping ram, no special equipment or means are required for mold thickness adjustment, reducing the time required to change molds and improving efficiency. can.
図面はこの発明に係る射出成形機の型締装置の
１実施例を略示すもので、第１図は要部縦断側面
図、第２図は型締ラムと型締ロツドとを係合した
状態における要部の縦断正面図、第３図は同じく
係合を解除した状態における要部の縦断正面図で
ある。
１，２……固定盤、５……可動盤、６……型締
シリンダ、７……移動用シリンダ、８……型締ラ
ム、９……型締ロツド、１０……接続部材、１
１，１２……突子、１１ａ，１２ａ……凹所、１
３……係止盤。
The drawings schematically show one embodiment of the mold clamping device for an injection molding machine according to the present invention, and FIG. 1 is a longitudinal sectional side view of the main part, and FIG. 2 is a state in which the mold clamping ram and mold clamping rod are engaged. FIG. 3 is a longitudinal sectional front view of the essential parts in a disengaged state. 1, 2... Fixed plate, 5... Movable plate, 6... Mold clamping cylinder, 7... Moving cylinder, 8... Mold clamping ram, 9... Mold clamping rod, 10... Connection member, 1
1, 12... protrusion, 11a, 12a... recess, 1
3...Latching plate.
Claims (1)
中空に形成して先端を開口し、その型締ラムの先
端内部に通孔を有する係止盤を回動自在に設け、
その係止盤を通して可動盤と連結した型締ロツド
を型締ラム内にを挿通し、かつ型締ラムと型締ロ
ツドとの係合及び解除を、上記係止盤の内周囲と
型締ロツドの後端部外周囲とに形成した軸方向に
係脱自在な複数の突子と凹所とにより行なう型締
装置において、上記型締ラムの先端開口に、上記
型締ロツドの突子と内側にて接触し、該型締ロツ
ドと型締ラムとを接続する部材を、上記係止盤と
の間に所要間隙を空けて設けてなることを特徴と
する射出成形機の型締装置。1. The mold clamping ram of the mold clamping cylinder fixed on the machine base is formed hollow and has an open tip, and a locking plate having a through hole is rotatably provided inside the tip of the mold clamping ram,
The mold clamping rod connected to the movable plate is inserted into the mold clamping ram through the locking plate, and the engagement and disengagement between the mold clamping ram and the mold clamping rod is controlled by connecting the inner periphery of the locking plate and the mold clamping rod. In a mold clamping device that uses a plurality of axially removable protrusions and recesses formed on the outer periphery of the rear end, the protrusions of the mold clamping rod and the inner side are connected to the tip opening of the clamping ram. A mold clamping device for an injection molding machine, characterized in that a member that contacts the mold clamping rod and the mold clamping ram and connects the mold clamping ram is provided with a required gap between it and the locking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4007485A JPS61199920A (en) | 1985-02-28 | 1985-02-28 | Mold clamping device of injection molder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4007485A JPS61199920A (en) | 1985-02-28 | 1985-02-28 | Mold clamping device of injection molder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61199920A JPS61199920A (en) | 1986-09-04 |
| JPH0536218B2 true JPH0536218B2 (en) | 1993-05-28 |
Family
ID=12570774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4007485A Granted JPS61199920A (en) | 1985-02-28 | 1985-02-28 | Mold clamping device of injection molder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199920A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3933348A1 (en) * | 1989-10-06 | 1991-04-18 | Kloeckner Ferromatik Desma | MOLDING LOCKING DEVICE FOR AN INJECTION MOLDING MACHINE |
| JP2543452B2 (en) * | 1991-11-18 | 1996-10-16 | 株式会社丸喜加藤 | Buddhist altar |
| LU88622A1 (en) | 1995-06-12 | 1997-01-03 | Wurth Paul Sa | Closing unit for an injection molding machine |
| LU88624A1 (en) * | 1995-06-12 | 1997-01-03 | Wurth Paul Sa | Hydraulic locking unit |
| LU88623A1 (en) | 1995-06-12 | 1997-01-03 | Wurth Paul Sa | Closing unit for an injection molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4954462A (en) * | 1972-09-29 | 1974-05-27 | ||
| JPS4967940A (en) * | 1972-10-31 | 1974-07-02 | ||
| JPS5111023A (en) * | 1974-07-18 | 1976-01-28 | Toray Industries | GOKINJISEIKIROKUBAITAINO SEIZOHO |
| JPS5686667A (en) * | 1979-12-17 | 1981-07-14 | Mitsubishi Heavy Ind Ltd | Mold clamping device |
| JPS60920A (en) * | 1983-06-17 | 1985-01-07 | Nissei Plastics Ind Co | Mold clamping mechanism of molding machine |
-
1985
- 1985-02-28 JP JP4007485A patent/JPS61199920A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4954462A (en) * | 1972-09-29 | 1974-05-27 | ||
| JPS4967940A (en) * | 1972-10-31 | 1974-07-02 | ||
| JPS5111023A (en) * | 1974-07-18 | 1976-01-28 | Toray Industries | GOKINJISEIKIROKUBAITAINO SEIZOHO |
| JPS5686667A (en) * | 1979-12-17 | 1981-07-14 | Mitsubishi Heavy Ind Ltd | Mold clamping device |
| JPS60920A (en) * | 1983-06-17 | 1985-01-07 | Nissei Plastics Ind Co | Mold clamping mechanism of molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61199920A (en) | 1986-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |