JPH0753401B2 - Mold opener of injection molding machine - Google Patents
Mold opener of injection molding machineInfo
- Publication number
- JPH0753401B2 JPH0753401B2 JP20868091A JP20868091A JPH0753401B2 JP H0753401 B2 JPH0753401 B2 JP H0753401B2 JP 20868091 A JP20868091 A JP 20868091A JP 20868091 A JP20868091 A JP 20868091A JP H0753401 B2 JPH0753401 B2 JP H0753401B2
- Authority
- JP
- Japan
- Prior art keywords
- mold clamping
- mold
- ram
- clamping rod
- opening
- 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 - Fee Related
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
-
- 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
- B29C45/26—Moulds
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
Description
【０００１】[0001]
【産業上の利用分野】本発明は射出成形機の型開閉装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold opening / closing device for an injection molding machine.
【０００２】[0002]
【従来の技術】射出成形機の型開閉装置には種々のもの
が知られている。例えば特開昭６１−１９９９２０号公
報にはつぎの型開閉装置が開示されている。すなわち、
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、該型締ラムの内部に通孔を有する係止盤を回動自在
に設け、先端において可動盤と連結された型締ロッドを
型締ラム内に挿通し、前記係止盤の通孔内面と型締ロッ
ド後端外面とに周方向に所定の間隔をおいて複数の突子
を形成し、型締ラムの内側に壁部を形成し、該壁部の中
央に前記型締ロッドを挿通して壁部内側面に型締ロッド
後端部の突子を当接すると共に、該突子に近接して前記
係止盤を型締ラム内に設け、型締ラムと型締ロッドの係
合または解除を係止盤と型締ロッドに形成した前記突子
と凹部により行うようにしている。この型開閉装置によ
れば型締ラムに対して型締ロッドを解除自在に係止しう
るようにしているので、型締ラムの移動をもって型厚調
整を行うことができるため、型厚調整に特別な装置や手
段が不要となるなどの利点がある。2. Description of the Related Art Various types of mold opening / closing devices for injection molding machines are known. For example, Japanese Patent Laid-Open No. 61-199920 discloses the following mold opening / closing device. That is,
The mold clamping ram of the mold clamping cylinder fixed on the machine base is formed hollow, and the locking plate with the through hole is rotatably provided inside the mold clamping ram, and the mold clamping is connected to the movable plate at the tip . The rod
A plurality of protrusions are formed at a predetermined interval in the circumferential direction between the inner surface of the through hole of the locking plate and the outer surface of the rear end of the mold clamping rod to be inserted into the mold clamping ram. forming a wall portion inside, abuts against the projections of the mold clamping rod rear end to the clamping rod is inserted through the wall portion side in the center of the wall portion, the locking in proximity to the projections board the provided clamping ram, and the engagement or release of the clamping ram and the clamping rod to perform by the projections <br/> a recess formed in the locking plate and the clamping rod. According to this mold opening / closing device, since the mold clamping rod can be releasably locked to the mold clamping ram, the mold thickness can be adjusted by moving the mold clamping ram. There is an advantage that no special device or means is required.
【０００３】[0003]
【発明が解決しようとする課題】しかし上記従来の型開
閉装置では、型開時の型締ラムと型締ロッドとの係合部
が１か所所定位置に設けられているだけであるので、一
旦強力型開して係止盤を解除した後移動ピストンを作動
させて可動盤を移動させ、型締ロッドの突子が係止盤を
通過した後は、再度強力型開力を型締ロッドに与えるこ
とはできず、そのため多段金型のように複数回強力型開
を必要とするものには利用できなかった。However, in the above-described conventional mold opening / closing device, the engaging portion between the mold clamping ram and the mold clamping rod at the time of mold opening is provided at only one predetermined position. once strong die opening and by operating the moving piston after releasing the engagement plate moves the movable platen, after the projections of the clamping rod passes through the locking plate, the mold clamping rod strong type opening force again Therefore, it could not be used for those that require multiple times of strong mold opening such as a multi-stage mold.
【０００４】そこで、本発明は上記問題点を解決すべく
なされたものであり、その目的とするところは、係止盤
の回動をもって型締ラムと型締ロッドの係合または解除
を行う型開閉装置であってかつ複数位置で型締ラムに強
力型開力を発生させ、その力を可動盤に伝達させること
のできる新たな型開閉装置を提供するにある。Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a mold for engaging or releasing a mold clamping ram and a mold clamping rod by rotating a locking plate. It is an object of the present invention to provide a new mold opening / closing device which is an opening / closing device and is capable of generating a strong mold opening force in a mold clamping ram at a plurality of positions and transmitting the force to a movable platen.
【０００５】本発明は上記目的を達成するため次の構成
を備える。すなわち、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、型締ラムの先端部に壁部を形
成し、該型締ラムの内部に通孔を有する係止盤を型締ラ
ムの軸線を中心として回動自在に、かつ型締ラムの軸線
方向へは移動不能に配設し、先端において可動盤と連結
される型締ロッドを前記壁部の中央を挿通して型締ラム
内に挿通し、前記係止盤の通孔内面と型締ロッド後端外
面とに周方向に所定間隔をおいて複数の突子を形成し、
先端が前記可動盤に連結された移動ピストンを備え、可
動盤に固定された金型の高速開閉を行う移動シリンダを
設け、前記壁部内側面に型締ロッド後端部の突子を当接
させて型開を行い、係止盤の突子間の凹部内を型締ロッ
ドの突子を通過させて前記移動ピストンにより高速型開
閉を行い、係止盤の突子と型締ロッドの突子とを係合さ
せて強力型締を行う射出成形機の型開閉装置において、
高速型開により、前記型締ロッドの突子が前記係止盤の
突子間を通過した位置で、前記型締ラムと型締ロッドを
解除自在に係止できる、型開用の係止手段を設けたこと
を特徴としている。前記係止手段を、前記型締ロッドの
突子が前記係止盤の突子間を通過した位置の複数位置で
前記型締ラムと型締ロッドを解除自在に係止可能にする
と好適である。The present invention has the following configuration in order to achieve the above object. That is, the mold clamping ram of the mold clamping cylinder fixed on the machine base is formed hollow, and the wall is formed at the tip of the mold clamping ram.
A locking board having a through hole inside the mold clamping ram is arranged so as to be rotatable about the axis of the mold clamping ram and immovable in the axial direction of the mold clamping ram, and movable at the tip. The mold clamping rod connected to the board is inserted through the center of the wall into the mold clamping ram, and there is a predetermined circumferential interval between the inner surface of the through hole of the locking plate and the outer surface of the rear end of the mold clamping rod. To form multiple stems ,
It has a moving piston whose tip is connected to the movable plate.
A moving cylinder that opens and closes the mold fixed on the moving plate at high speed.
Provided, and the protrusion of the rear end of the mold clamping rod contacts the inner surface of the wall.
Then, the mold is opened, and the mold clamping lock
High speed die opening by the moving piston.
Close and engage the locking plate protrusion with the mold clamping rod protrusion.
In the mold opening and closing device of the injection molding machine that performs strong mold clamping
Due to the high speed mold opening, the protrusion of the mold clamping rod of the locking plate
At the position where it passes between the protrusions, connect the mold clamping ram and the mold clamping rod.
It is characterized in that it is provided with locking means for mold opening, which can be locked so as to be released . The locking means of the mold clamping rod
At multiple positions where the protrusions pass between the protrusions of the locking plate
It is preferable that the mold clamping ram and the mold clamping rod can be releasably locked .
【０００６】[0006]
【作用】型締ラムと型締ロッドの係合を複数個所で行え
るようにしたので、係止盤の回動をもって型締ラムと型
締ロッドの係合および解除を行う装置でありながら適宜
位置で適宜回数の強力型開が行え、異なった位置で複数
回強力型開を行うことを必要とする多段金型をもちいて
成形を行うことができる。Since the mold clamping ram and the mold clamping rod can be engaged at a plurality of points, the locking plate is rotated to engage and disengage the mold clamping ram and the mold clamping rod. Thus, it is possible to perform the powerful mold opening a proper number of times, and it is possible to perform molding using a multi-stage mold that requires the strong mold opening to be performed a plurality of times at different positions.
【０００７】[0007]
【実施例】以下、本発明の好適な実施例を添付図面に基
づいて詳細に説明する。図１において、型締シリンダ１
０、固定盤１２は図示なき機台上に設けられており、両
者にわたり横架されたタイバー１４には３つの可動盤１
５、１６、１７が進退自在に設けられている。型締シリ
ンダ１０は２本の移動シリンダ１８、１９と共に固定盤
１２に対して内向きに固定してある。移動シリンダ１
８、１９は先端が可動盤１５に連結された移動ピストン
１３を備え、可動盤、金型を高速開閉する。型締シリン
ダ１０には型締ラム２０が貫通、摺合しており、型締ラ
ム２０の中途部に設けられたピストン２１が型締シリン
ダ１０内を右室と左室に画成している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In FIG. 1, the mold clamping cylinder 1
0, the fixed platen 12 is provided on a machine base (not shown), and the tie bar 14 which is horizontally extended across the two plates has three movable plates 1.
5, 16 and 17 are provided so that they can move back and forth. The mold clamping cylinder 10 is fixed inward with respect to the fixed plate 12 together with the two moving cylinders 18 and 19. Moving cylinder 1
8 and 19 are provided with a moving piston 13 whose tip is connected to the movable platen 15, and open and close the movable platen and the mold at high speed. A mold clamping ram 20 penetrates and slides in the mold clamping cylinder 10, and a piston 21 provided in the middle of the mold clamping ram 20 defines the inside of the mold clamping cylinder 10 into a right chamber and a left chamber.
【０００８】型締ラム２０は中空状に形成され、その前
端側（内側）には壁部２２が形成され、この壁部２２の
中央部を先端が可動盤１５に連結された型締ロッド２３
が軸方向に移動自在に挿通している。型締ロッド２３の
後端外周には、周方向に所定の間隔をおいて複数の突子
２４が形成されており、この突子２４は前記壁部２２の
内側面に当接可能になっている。また型締ラム２０の先
端内部には、通孔を有する係止盤２５が型締ロッド２３
の突子２４に近接して型締ラム２０の軸線を中心として
回動自在に、かつ型締ラム２０の軸線方向に移動不能に
配設されている。この通孔内面には、突子２４とその回
動位置で係合する突子２６が周方向に所定間隔をおいて
複数設けられ（図５、６）、また係止盤２５が所定位置
に回動した際、突子２４は突子２６間の凹部を通過可能
に設けられている。The mold clamping ram 20 is formed in a hollow shape, and a wall portion 22 is formed on the front end side (inner side) of the mold clamping ram 20, and the center portion of the wall portion 22 is connected to the movable plate 15 at the tip thereof.
Is movably inserted in the axial direction. The rear end outer periphery of the mold clamping rod 23, the circumferential direction at predetermined intervals and a plurality of projections 24 are formed, the projections 24 become capable of abutting the inner surface of the wall portion 22 There is. In addition, inside the tip of the mold clamping ram 20, a locking plate 25 having a through hole is provided.
Of freely <br/> rotated about the axis of the mold clamping ram 20 in proximity to the projections 24, and immovably in the axial direction of the mold clamping ram 20
It is arranged . On the inner surface of the through hole, the protrusions 24 that engage with the protrusions 24 at their rotational positions are arranged at predetermined intervals in the circumferential direction.
Provided with a plurality (FIGS. 5 and 6), also when the Kakaritomeban 25 is rotated to a predetermined position, projections 24 are provided to be passed through the recesses between the projections 26.
【０００９】図５、６に明らかなように、係止盤２５は
壁部２２の斜め下方に回動自在に取り付けられた回動シ
リンダ２８にアーム２９を介して連結されており、この
回動シリンダ２８によって回動される。図１に示される
ように型締ロッド２３の後端面には、係止盤２５の通孔
を挿通して型締ラム２０内をその後端側に向けて伸びる
ロックロッド３０が固着されている。ロックロッド３０
の後端側外周には雄ねじが形成され、この雄ねじ部上に
は２個のロックナット３１、３２が移動自在に螺合され
ており、それぞれ任意な回転防止手段により回転止めさ
れてロックロッド３０の任意の位置に固定できるように
なっている。型締ラム２０後端の型締シリンダ１０外部
に位置する部位にはロックナット３１、３２係止用の一
対のロックシリンダ３４、３５が取り付けられている。
ロックシリンダ３４、３５のロッド先端にはロック部材
３９、３９が固定されている。固定盤１２と可動盤１
７、可動盤１７と可動盤１６、可動盤１６と可動盤１５
の間にはそれぞれ独立した金型３６、３７、３８が取り
付けられており、各金型のキャビティは、固定盤１２の
背面に配置された射出装置４０と１本の樹脂路４１で連
結されている。また各金型はそれぞれ成形品の取り出し
に必要な型開距離以上に開くことのないよう図示しない
リンクで連結されている。As shown in FIGS. 5 and 6, the locking plate 25 is connected via an arm 29 to a rotating cylinder 28 rotatably mounted obliquely below the wall 22. It is rotated by the cylinder 28. As shown in FIG. 1, a lock rod 30 is fixed to the rear end surface of the mold clamping rod 23 so as to extend through the through hole of the locking plate 25 to the rear end side of the mold clamping ram 20. Lock rod 30
A male screw is formed on the outer periphery of the rear end side, and two lock nuts 31 and 32 are movably screwed onto the male screw portion. It can be fixed at any position. A pair of lock cylinders 34 and 35 for locking the lock nuts 31 and 32 are attached to a portion of the rear end of the mold clamping ram 20 located outside the mold clamping cylinder 10.
Lock members 39, 39 are fixed to the rod tips of the lock cylinders 34, 35. Fixed board 12 and movable board 1
7, movable plate 17 and movable plate 16, movable plate 16 and movable plate 15
Separate dies 36, 37, 38 are attached between the cavities, and the cavities of the dies are connected to an injection device 40 arranged on the back surface of the fixed plate 12 by a resin path 41. There is. Further, each mold is connected by a link (not shown) so as not to open more than the mold opening distance required for taking out the molded product.
【００１０】続いて動作について説明する。図１、図６
の射出充填、冷却完了状態からの型開工程について説明
する。 １．型締シリンダ１０右室に圧油を供給し、強力型開力
を発生させる。強力型開力は型締ラム２０、壁部２２、
型締ロッド２３、可動盤１５の順で伝達され金型に至
る。これにより３つの金型の内一番型開抵抗が小さい金
型（本例中では金型３６）が開く。 ２．金型３６の強力型開と同時に回動シリンダ２８を後
退させ型締ラム２０と型締ロッド２３の係止を解除す
る。 ３．金型３６の強力型開完了後、移動シリンダ１８、１
９の右室に圧油を供給し金型３６の型開限まで高速型開
を行う（図２）。 ４．ロックシリンダ３４、３５を前進作動させてロック
部材３９とロックナット３２を係合させる（図８）。 ５．型締シリンダ１０右室に圧油を供給し、強力型開力
を発生させる。強力型開力は型締ラム２０、ロックシリ
ンダ３４、３５、ロック部材３９、ロックナット３２、
ロックロッド３０、型締ロッド２３、可動盤１５の順に
伝達され、金型に至る。すると残った２つの金型のうち
型開抵抗の小さい方の金型（本例中では金型３７が開
く。 ６．金型３７の強力型開終了後型締ラムを一旦停止さ
せ、ロックシリンダ３４、３５を後退側に作動させ、ロ
ック部材３９とロックナット３２の係合を解除する。 ７．移動シリンダ１８、１９右室に圧油を供給して、金
型３７の型開限まで高速型開する（図３）。 ８．ロックシリンダ３４、３５を前進作動させロック部
材３９とロックナット３１を係合させる。 ９．型締シリンダ１０右室に圧油を供給し、強力型開力
を発生させる。強力型開力は前記５．と同様にして可動
盤１５に伝達され、金型に至る。そして金型３８が開か
れる。 １０．金型３８の強力型開終了後型締ラム２０を一旦停
止させ、ロックシリンダ３４、３５を後退側に作動さ
せ、ロック部材３９とロックナット３１の係合を解除す
る。 １１．移動シリンダ１８、１９右室に圧油を供給して、
金型３８を型開限まで高速型開する（図４）。 １２．成形品の取り出しを行った後、移動シリンダ１
８、１９の左室に圧油を供給して高速型閉し、次いで係
止盤２５を回動して係止盤２５の突子２６と型締ロッド
２３の突子２４とを係合させ、型締シリンダ１０の左室
に圧油を供給して強力型締し、射出装置４０から樹脂路
４１を通じて樹脂をキャビティ内に充填し、成形を行
う。Next, the operation will be described. 1 and 6
The mold opening step from the injection filling and the cooling completion state will be described. 1. Pressure oil is supplied to the right chamber of the mold clamping cylinder 10 to generate a strong mold opening force. The strong mold opening force is the mold clamping ram 20, the wall portion 22,
The mold clamping rod 23 and the movable platen 15 are transmitted in this order to reach the mold. As a result, the mold having the smallest mold opening resistance (the mold 36 in this example) of the three molds is opened. 2. At the same time when the mold 36 is strongly opened, the rotary cylinder 28 is retracted to release the locking between the mold clamping ram 20 and the mold clamping rod 23. 3. After the die 36 has been fully opened, the moving cylinders 18 and 1
Pressure oil is supplied to the right chamber of 9 to perform high-speed mold opening up to the mold opening limit of the mold 36 (FIG. 2). 4. The lock cylinders 34 and 35 are moved forward to engage the lock member 39 and the lock nut 32 (FIG. 8). 5. Pressure oil is supplied to the right chamber of the mold clamping cylinder 10 to generate a strong mold opening force. The powerful mold opening force is the mold clamping ram 20, the lock cylinders 34 and 35, the lock member 39, the lock nut 32,
The lock rod 30, the mold clamping rod 23, and the movable platen 15 are transmitted in this order to reach the mold. Then, of the remaining two molds, the one with the smaller mold opening resistance (the mold 37 in this example opens. 6. After the mold 37 has been strongly opened, the mold clamping ram is temporarily stopped and the lock cylinder is released. 34 and 35 are operated in the backward direction to release the engagement between the lock member 39 and the lock nut 32. 7. High pressure is supplied to the right chamber of the moving cylinders 18 and 19 until the mold 37 is opened. to mold opening (Fig. 3). 8. engaging the locking member 39 and the lock nut 31 is advanced operating the lock cylinder 34, 35. 9. supply pressure oil to the clamping cylinder 10 RV, strong type opening force The powerful mold opening force is transmitted to the movable platen 15 and reaches the mold in the same manner as in 5. The mold 38 is opened 10. After the mold 38 is completely opened, the mold clamping ram is formed. 20 is temporarily stopped, the lock cylinders 34 and 35 are operated to the backward side, Tsu to release the engagement of the click member 39 and the lock nut 31. 11. supply pressure oil to the moving cylinder 18 and 19 RV,
The mold 38 is opened at high speed up to the mold opening limit (FIG. 4). 12. After removing the molded product, move cylinder 1
To supply pressure oil to the left ventricle of 8 and 19 closed fast-type, then engaged with the projections 24 of the projections 26 and the mold clamping rod 23 of the lock plate 25 rotates the Kakaritomeban 25 Then, pressure oil is supplied to the left chamber of the mold clamping cylinder 10 to perform strong mold clamping, and resin is filled into the cavity from the injection device 40 through the resin passage 41 to perform molding.
【００１１】ロックナットの数、位置は使用する金型の
数、型厚等に応じて変更する。以上実施例を説明した
が、型開時の型締ラム２０と型締ロッド２３の係合（係
合手段）はロック部材とロックナットによらず、図９、
図１０のように、ロック部材３９、３９の内端に形成し
たねじ部を直接ロックロッド２３のねじ部に係合させて
もよいし、ロックシリンダ３４、３５の位置も型締ラム
２０の後端面に限らず、壁部２２の前方に設け、型締ロ
ッド２３に設けた凹部（図示せず）と係合させてもよ
い。この場合にはロックロッド３０は不要となる。The number and position of the lock nuts are changed according to the number of molds used and the mold thickness. Although the embodiment has been described above, the engagement (engagement means) between the mold clamping ram 20 and the mold clamping rod 23 when the mold is opened does not depend on the lock member and the lock nut.
As shown in FIG. 10 , formed on the inner ends of the lock members 39, 39.
The threaded portion may be directly engaged with the threaded portion of the lock rod 23 , and the positions of the lock cylinders 34 and 35 are not limited to the rear end surface of the die clamping ram 20, but may be provided in front of the wall portion 22. You may make it engage with the recessed part (not shown) provided in 23. In this case, the lock rod 30 becomes unnecessary.
【００１２】[0012]
【発明の効果】以上のように本発明によれば、係止盤の
回動をもって型締ラムと型締ロッドの係合および解除を
行う装置でありながら適宜位置で適宜回数の強力型開が
行えるため、異なった位置で複数回強力型開を行うこと
を必要とする多段金型をもちいて成形を行うことができ
る。As described above, according to the present invention, the device for engaging and disengaging the mold clamping ram and the mold clamping rod by rotating the locking plate is capable of performing the powerful mold opening at a suitable position and a suitable number of times. Since it can be performed, it is possible to perform molding using a multi-stage mold that requires strong mold opening a plurality of times at different positions.
【図１】成形終了時の状態を示す断面図である（ハッチ
ング省略）。FIG. 1 is a cross-sectional view showing a state after completion of molding (hatching is omitted).
【図２】第１の型開時の断面図である。FIG. 2 is a cross-sectional view when the first mold is opened .
【図３】第２の型開時の断面図である。FIG. 3 is a cross-sectional view when a second mold is opened.
【図４】第３の型開時の断面図である。FIG. 4 is a cross-sectional view of a third mold when it is opened.
【図５】型締ラムと型締ロッドの係合解除の状態を示す
説明図である。FIG. 5 is an explanatory view showing a state where the mold clamping ram and the mold clamping rod are disengaged from each other.
【図６】型締ラムと型締ロッドの係合状態を示す説明図
である。FIG. 6 is an explanatory view showing an engaged state of a mold clamping ram and a mold clamping rod.
【図７】ロック部材とロックナットの非係合時の説明図
である。FIG. 7 is an explanatory diagram when a lock member and a lock nut are not engaged.
【図８】ロック部材とロックナットの係合状態を示す説
明図である。FIG. 8 is an explanatory view showing an engaged state of a lock member and a lock nut.
【図９】ロック部材とロックロッドの非係合時の説明図
である。FIG. 9 is an explanatory diagram when the lock member and the lock rod are not engaged.
【図１０】ロック部材とロックロッドの係合状態を示す
説明図である。FIG. 10 is an explanatory diagram showing an engaged state of a lock member and a lock rod.
１０ 型締シリンダ １２ 固定盤 １５、１６、１７ 可動盤 １８、１９ 移動シリンダ ２０ 型締ラム ２２ 壁部 ２３ 型締ロッド ２４、２６ 突子 ２５ 係止盤 ２８ 回動シリンダ ３０ ロックロッド ３１、３２ ロックナット ３４、３５ ロックシリンダ ３６、３７、３８ 金型10 the clamping cylinder 12 fixed plate 15, 16, 17 movable platen 19 moves the cylinder 20 type clamping ram 22 wall portion 23 Clamping rod 24 stems 25 Kakaritomeban 28 rotates cylinder 30 lock rod 31 locks Nut 34,35 Lock cylinder 36,37,38 Mold
Claims (2)
ムを中空に形成し、型締ラムの先端部に壁部を形成し、
該型締ラムの内部に通孔を有する係止盤を型締ラムの軸
線を中心として回動自在に、かつ型締ラムの軸線方向へ
は移動不能に配設し、先端において可動盤と連結される
型締ロッドを前記壁部の中央を挿通して型締ラム内に挿
通し、前記係止盤の通孔内面と型締ロッド後端外面とに
周方向に所定間隔をおいて複数の突子を形成し、先端が
前記可動盤に連結された移動ピストンを備え、可動盤に
固定された金型の高速開閉を行う移動シリンダを設け、
前記壁部内側面に型締ロッド後端部の突子を当接させて
型開を行い、係止盤の突子間の凹部内を型締ロッドの突
子を通過させて前記移動ピストンにより高速型開閉を行
い、係止盤の突子と型締ロッドの突子とを係合させて強
力型締を行う射出成形機の型開閉装置において、高速型
開により、前記型締ロッドの突子が前記係止盤の突子間
を通過した位置で、前記型締ラムと型締ロッドを解除自
在に係止できる、型開用の係合手段を設けたことを特徴
とする射出成形機の型開閉装置。1. A mold clamping ram of a mold clamping cylinder fixed on a machine base is formed hollow, and a wall portion is formed at a tip end of the mold clamping ram,
A locking plate having a through hole inside the mold clamping ram is arranged so as to be rotatable around the axis of the mold clamping ram and immovable in the axial direction of the mold clamping ram, and is connected to the movable plate at the tip. The mold clamping rod to be inserted through the center of the wall portion and into the mold clamping ram, and a plurality of plural mold clamping rods are circumferentially spaced from the inner surface of the through hole of the locking plate and the outer surface of the rear end of the mold clamping rod. Forming a stem and the tip
With a moving piston connected to the movable plate,
Provided with a moving cylinder that opens and closes the fixed mold at high speed,
Abut the protrusion at the rear end of the mold clamping rod on the inner surface of the wall.
After opening the mold, insert the mold clamping rod into the recess between the protrusions of the locking plate.
High speed die opening and closing by moving the child through the moving piston
The locking plate and the mold clamping rod.
High-speed mold in the mold opening and closing device of the injection molding machine that performs force clamping.
When opened, the protrusion of the mold clamping rod is placed between the protrusions of the locking plate.
Release the mold clamping ram and mold clamping rod at the position where
A mold opening / closing device for an injection molding machine, which is provided with engaging means for mold opening that can be locked at the present position .
が前記係止盤の突子間を通過した位置の複数位置で前記
型締ラムと型締ロッドを解除自在に係止可能なことを特
徴とする請求項１記載の射出成形機の型開閉装置。2. The engagement means is a protrusion of the mold clamping rod.
At the plurality of positions where the
The mold opening / closing device for an injection molding machine according to claim 1 , wherein the mold clamping ram and the mold clamping rod are releasably engageable .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20868091A JPH0753401B2 (en) | 1991-07-25 | 1991-07-25 | Mold opener of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20868091A JPH0753401B2 (en) | 1991-07-25 | 1991-07-25 | Mold opener of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0524086A JPH0524086A (en) | 1993-02-02 |
| JPH0753401B2 true JPH0753401B2 (en) | 1995-06-07 |
Family
ID=16560291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20868091A Expired - Fee Related JPH0753401B2 (en) | 1991-07-25 | 1991-07-25 | Mold opener of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753401B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US6334768B1 (en) | 1999-08-11 | 2002-01-01 | Husky Injection Molding Systems Ltd. | Blow molding clamp arrangement |
| KR100545756B1 (en) * | 2003-02-27 | 2006-01-24 | 엘에스전선 주식회사 | Injection Molding Device for Injection Molding Machine |
| US7361012B2 (en) * | 2004-10-15 | 2008-04-22 | Husky Injection Molding Systems Ltd. | Multiple-level stack mold apparatus |
-
1991
- 1991-07-25 JP JP20868091A patent/JPH0753401B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524086A (en) | 1993-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |