JPS625298Y2 - - Google Patents
Info
- Publication number
- JPS625298Y2 JPS625298Y2 JP18678881U JP18678881U JPS625298Y2 JP S625298 Y2 JPS625298 Y2 JP S625298Y2 JP 18678881 U JP18678881 U JP 18678881U JP 18678881 U JP18678881 U JP 18678881U JP S625298 Y2 JPS625298 Y2 JP S625298Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- connecting shaft
- injection
- ball
- movable
- 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
Links
- 238000001746 injection moulding Methods 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 description 43
- 239000007924 injection Substances 0.000 description 43
- 239000011347 resin Substances 0.000 description 14
- 229920005989 resin Polymers 0.000 description 14
- 238000000034 method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は、射出成形機における金型連結装置に
関するものである。[Detailed Description of the Invention] The present invention relates to a mold connection device for an injection molding machine.
射出成形において、成形サイクルタイムの短縮
のために、一台の射出装置に対して２組以上の金
型を用いて成形を行う方法がある。 In injection molding, in order to shorten the molding cycle time, there is a method of performing molding using two or more sets of molds for one injection device.
しかし、従来では、一つの金型を型締装置によ
り型締した状態で、該金型内に溶融樹脂を射出し
た後、その射出位置で型締状態を保持させたまゝ
で金型内の樹脂を冷却固化させ、該樹脂が固化し
た後に、型締を解除して金型を成形品取出位置に
移動させていた。そのため、金型を射出位置で、
溶融樹脂の射出から冷却固化まで長時間にわたつ
て型締状態を保持しなければならず、成形サイク
ルタイムを大巾に短縮することは困難であつた。
しかも、金型の型締状態を保持するための型締装
置は、射出時の射出圧力に打ち勝つだけの大きな
型締力をもつたもので、このような型締装置で金
型を長時間保持すれば、それだけエネルギロスも
大きくなるという問題もあつた。 However, conventionally, after injecting molten resin into one mold with the mold clamped by a mold clamping device, the resin inside the mold is kept in the mold clamped state at the injection position. After cooling and solidifying the resin, the mold clamping was released and the mold was moved to the molded product removal position. Therefore, the mold is placed at the injection position.
The mold must be kept in a closed state for a long period of time from injection of the molten resin to cooling and solidification, making it difficult to significantly shorten the molding cycle time.
Moreover, the mold clamping device that keeps the mold in the clamped state has a large mold clamping force that can overcome the injection pressure during injection, and such a mold clamping device can hold the mold for a long time. There was also the problem that the energy loss would increase accordingly.
ところで、本考案者は、種々の実験を行つた結
果、金型内の圧力は射出保持完了後に減少し、そ
のため、金型に対して常に大きな型締力を必要と
しないことが判明した。 By the way, as a result of various experiments, the inventor of the present invention found that the pressure inside the mold decreases after injection and holding is completed, and therefore, it is not always necessary to apply a large mold clamping force to the mold.
第１図は射出工程中における金型内樹脂圧力を
ポリエチレンを例に測定したものである。第１図
ａにおいて、低容量ポリエチレンを射出設定圧
1400Kg／cm2、射出速度1.89ｍ／minで射出した時
の射出圧を線、金型のゲート下の圧力を線、
金型内中間部の圧力を線で示している。また、
第１図ｂでは、高容量ポリエチレンを射出設定圧
1000Kg／cm2、射出速度6.01ｍ／minで射出した時
の射出圧を線′、金型のゲート下の圧力を線
′、金型内中間部の圧力を線′で示している。
第１図ａ，ｂにより、射出成形において、大きな
型締力を必要とするのは射出保持完了までで、保
持完了時（一般にはゲートがシールされた状態）
には必要型締力Ｆpは、
Ｆp＝（０〜10Kg／cm2）×（成形品の投影面積）
であればよいことがわかる。 FIG. 1 shows the measurement of the resin pressure inside the mold during the injection process using polyethylene as an example. In Figure 1a, low volume polyethylene is injected at the set pressure.
The line is the injection pressure when injecting at 1400Kg/cm 2 and the injection speed is 1.89m/min, and the line is the pressure under the mold gate.
The pressure at the middle part of the mold is shown by a line. Also,
In Figure 1b, high capacity polyethylene is injected at the set pressure.
The injection pressure when injecting at 1000 Kg/cm 2 and the injection speed of 6.01 m/min is shown by the line ', the pressure under the gate of the mold is shown by the line ', and the pressure at the middle part of the mold is shown by the line '.
As shown in Figures 1a and b, in injection molding, large mold clamping force is required until injection holding is completed, and when holding is completed (generally when the gate is sealed).
It can be seen that the required mold clamping force F p is as follows: F p = (0 to 10 Kg/cm 2 ) x (projected area of the molded product).
本考案は、このような点に鑑み、射出保持完了
後に、固定金型と可動金型を容易に連結、固定で
き、金型の閉鎖姿勢を小さな保持力で容易にかつ
確実に保持し得て、金型を直ちに移動できるよう
にして上記従来の問題点を解決できる装置を提供
するものである。 In view of these points, the present invention allows the fixed mold and the movable mold to be easily connected and fixed after the injection holding is completed, and the closed posture of the mold can be easily and reliably held with a small holding force. The object of the present invention is to provide an apparatus that can solve the above-mentioned conventional problems by allowing the mold to be moved immediately.
本考案は、射出成形機の相対向する固定金型と
可動金型のうち、少なくとも一方の金型に連結軸
を突設し、他方の金型に該連結軸を挿入し得る連
結孔を設け、かつ、該連結孔内にボールチヤツク
を設けてなるもので、該ボールチヤツクは、連結
孔内に軸方向に摺動自在に設けられた摺動筒と、
この摺動筒を軸方向に摺動させる駆動手段と、摺
動筒内に設けられた連結軸挿入部と、連結軸挿入
部内に配置された複数個のボールと、摺動筒の軸
方向の摺動に応じて上記ボールを連結軸挿入部に
挿入された連結軸の外周面に圧接させる位置と離
間させる位置とに案内するチヤツク用テーパ面と
を備えていることを特徴とする射出成形機におけ
る金型連結装置に係るものである。 The present invention provides a connecting shaft protruding from at least one of a fixed mold and a movable mold that face each other in an injection molding machine, and a connecting hole into which the connecting shaft can be inserted into the other mold. , and a ball chuck is provided in the connecting hole, and the ball chuck includes a sliding tube slidably provided in the connecting hole in the axial direction;
A driving means for sliding the sliding tube in the axial direction, a connecting shaft insertion part provided in the sliding cylinder, a plurality of balls arranged in the connecting shaft insertion part, and a driving means for sliding the sliding cylinder in the axial direction. An injection molding machine characterized by comprising a chuck tapered surface that guides the ball into a position where the ball is brought into pressure contact with the outer peripheral surface of the connecting shaft inserted into the connecting shaft insertion part and a position where it is separated from the outer peripheral surface of the connecting shaft inserted in the connecting shaft insertion part according to the sliding movement. This relates to a mold connection device.
以下、図面に基づいて説明する。 The following will explain based on the drawings.
第２図，第３図は本考案の金型連結装置を量産
タイプの横型射出成形機に用いた場合の使用例を
示すもので、同図において、Ａは射出位置、Ｂ，
B′は取出位置を示す。 Figures 2 and 3 show an example of the use of the mold coupling device of the present invention in a mass-produced horizontal injection molding machine. In the figures, A is the injection position, B,
B' indicates the extraction position.
射出位置Ａには、一対の固定盤１１，１２の間
にタイロツド１３を介して可動盤１４を前後移動
可能に支持させ、該可動盤１４を主型締装置１５
により前後移動できるように設けている。１６，
１７はガイド、１８は自動クランプ装置である。 At the injection position A, a movable platen 14 is supported between a pair of fixed plates 11 and 12 via a tie rod 13 so as to be movable back and forth, and the movable platen 14 is supported by a main mold clamping device 15.
It is designed so that it can be moved back and forth. 16,
17 is a guide, and 18 is an automatic clamp device.
２は射出装置で、固定盤１１の前面に対向して
移動シリンダ２１により前後に往復移動するよう
に設けている。２２はホツパー、２３はシリンダ
バレル、２４は射出ノズル、２５は射出用油圧シ
リンダ、２６は射出スクリユ駆動用油圧モータを
示す。 Reference numeral 2 denotes an injection device, which is provided opposite to the front surface of the fixed platen 11 so as to be moved back and forth by a movable cylinder 21. 22 is a hopper, 23 is a cylinder barrel, 24 is an injection nozzle, 25 is an injection hydraulic cylinder, and 26 is an injection screw drive hydraulic motor.
取出位置Ｂ，B′にはそれぞれ一対の固定盤３
１，３２および３１′，３２′の間にタイロツド３
３および３３′を介して可動盤３４および３４′を
前後移動可能に支持させ、該可動盤３４，３４′
を金型開閉用シリンダ３５，３５′により前後移
動できるように設けている。３６，３７および３
６′，３７′はガイド、３８，３９および３８′，
３９′は自動クランプ装置である。前記可動盤３
４，３４′には、エジエクタボツクス４１，４
１′、エジエクタシリンダ４２，４２′、エジエク
タプレート４３，４３′からなるエジエクタ装置
４，４′を設けている。４４，４４′は型厚調整シ
リンダである。 A pair of fixed plates 3 are installed at the extraction positions B and B' respectively.
Tie rod 3 between 1, 32 and 31', 32'
3 and 33', the movable plates 34 and 34' are supported so as to be movable back and forth.
are provided so as to be movable back and forth by mold opening/closing cylinders 35, 35'. 36, 37 and 3
6', 37' are guides, 38, 39 and 38',
39' is an automatic clamping device. Said movable plate 3
4, 34' are ejector boxes 41, 4.
1', ejector cylinders 42, 42', and ejector plates 43, 43'. 44, 44' are mold thickness adjusting cylinders.
５は金型移動板で、起立姿勢でガイド１６とガ
イド３６，３６′に係合して、固定盤１１と固定
盤３１，３１′の各内面に沿つて左右に往復動自
在に設けている。該金型移動板５の移動手段とし
て、金型移動板５の上側辺部にラツク５１を設
け、これにピニオン５２を噛合させ、該ピニオン
５２を固定盤１１に設けた駆動モータ５３により
駆動させるようにしている。金型移動板５は索引
チエーンやトロリーコンベア等にて左右に往復移
動させてもよい。 Reference numeral 5 denotes a mold moving plate, which engages with the guide 16 and the guides 36, 36' in an upright position, and is provided so as to be able to freely reciprocate left and right along the inner surfaces of the fixed plate 11 and the fixed plates 31, 31'. . As a means for moving the mold moving plate 5, a rack 51 is provided on the upper side of the mold moving plate 5, a pinion 52 is meshed with the rack 51, and the pinion 52 is driven by a drive motor 53 provided on the fixed plate 11. That's what I do. The mold moving plate 5 may be moved back and forth from side to side using an index chain, a trolley conveyor, or the like.
而して、上記射出成形機を用いるときは二組の
金型６，６′を用い、各金型６，６′の固定金型６
１，６１′を金型移動板５の内面に左右に所定間
隔を置いて取付ける。可動金型６２，６２′はそ
れぞれ可動金型取付板５４，５４′に取付けた状
態で、次のような連結手段により固定金型６１，
６１′に開閉自在に連結する。 Therefore, when using the above injection molding machine, two sets of molds 6, 6' are used, and the fixed mold 6 of each mold 6, 6' is
1 and 61' are attached to the inner surface of the mold moving plate 5 at a predetermined interval from side to side. The movable molds 62, 62' are attached to the movable mold mounting plates 54, 54', respectively, and are connected to the fixed molds 61, 62' by the following connection means.
61' so that it can be opened and closed.
すなわち、第４図に示すように、金型６（６′
も同じ）において、可動金型６２に連結軸７を突
設し、固定金型６１に該連結軸７を挿入し得る連
結孔８を設け、該連結孔８内にボールチヤツク９
を設け、このボールチヤツク９により連結軸７を
把持して両金型６１，６２同士を連結し、金型６
の閉鎖姿勢を保持する。この場合、一般に可動金
型６２には４隅にガイドロツドを突設し、固定金
型６２にその嵌合孔を設けてあるので、これらの
１乃至数個のガイドロツドを連結軸７とし、該ロ
ツドに対応する嵌合孔を連結孔８とし、その内部
にボールチヤツク９を設ければよい。８１はガイ
ドブツシユである。 That is, as shown in FIG.
(same as above), a movable mold 62 is provided with a connecting shaft 7 protruding, a fixed mold 61 is provided with a connecting hole 8 into which the connecting shaft 7 can be inserted, and a ball chuck 9 is inserted into the connecting hole 8.
is provided, the connecting shaft 7 is gripped by the ball chuck 9, the two molds 61 and 62 are connected to each other, and the mold 6 is
Maintain a closed position. In this case, the movable mold 62 generally has guide rods protruding from the four corners, and the fixed mold 62 has fitting holes for the guide rods, so one or several of these guide rods are used as the connecting shaft 7, and the rods A fitting hole corresponding to the connecting hole 8 may be used as the connecting hole 8, and a ball chuck 9 may be provided inside the connecting hole 8. 81 is a guide bush.
ボールチヤツク９は、第５図ａ，ｂ，ｃに示す
ように構成する。第５図において、９１は連結軸
挿入部を形成する摺動筒で、連結孔８の奥端部に
設けたガイド孔８２内に軸方向に摺動自在に収納
し、ばね９２により図面左方向に移動するように
付勢し、エアまたは油圧式のチヤツク解除用シリ
ンダ（図示省略）等により図面右方向に移動でき
るように設けている。９１ａはボール収納溝で、
摺動筒９１の内周面に設けられ、その一側部にチ
ヤツク用テーパー面９１ｂを有し、該溝９１ａ内
に複数個のボール９３を収納し、該ボール９３を
ばね９４により図面右方向に移動するように付勢
している。９５はボール９３のストツパ部材、９
６はボール脱落防止用摺動軸を示し、該摺動軸９
６は摺動筒９１内に軸方向に摺動自在に設け、ば
ね９７により図面右方向に移動するように付勢
し、ボール収納溝９１ａを開閉できるように設け
ている。９６ａは摺動軸９６のストツパ部、９８
はばね受けリング、９９は摺動筒９１のストツパ
リングである。 The ball chuck 9 is constructed as shown in FIGS. 5a, b, and c. In FIG. 5, reference numeral 91 denotes a sliding tube forming a connecting shaft insertion portion, which is housed in a guide hole 82 provided at the rear end of the connecting hole 8 so as to be slidable in the axial direction, and is supported by a spring 92 in the left direction in the drawing. It is provided so that it can be moved to the right in the drawing by an air or hydraulic chuck release cylinder (not shown) or the like. 91a is a ball storage groove,
It is provided on the inner peripheral surface of the sliding tube 91, and has a tapered surface 91b for a chuck on one side thereof. A plurality of balls 93 are housed in the groove 91a, and the balls 93 are pushed in the right direction in the drawing by a spring 94. It is biased to move. 95 is a stopper member for the ball 93;
6 indicates a sliding shaft for preventing balls from falling off, and the sliding shaft 9
6 is provided so as to be freely slidable in the axial direction within the sliding tube 91, and is biased by a spring 97 to move rightward in the drawing, thereby opening and closing the ball storage groove 91a. 96a is a stopper portion of the sliding shaft 96; 98
The spring receiving ring 99 is a stopper ring for the sliding tube 91.
上記ボールチヤツク９によれば、第５図ａに示
すように摺動筒９１をチヤツク解除用シリンダ等
によりばね９２に抗して図面右方向に移動させる
と、テーパー面９１ｂがボール９３から離間して
チヤツク解除状態となる。このとき、摺動軸９６
がばね９７により図面右方向に付勢され、この摺
動軸９６にてボール収納溝９１ａの内周開口部を
閉鎖し、ボール９３が脱落することを防止してい
る。この状態で、連結軸７を連結孔８に挿入して
金型を閉鎖すると、連結軸７の先端部が摺動筒９
１の内部に形成された連結軸挿入部に挿入され、
これに伴つて第５図ｂに示すように、摺動軸９６
がばね９７に抗して図面左方向に後退され、連結
軸７の先端部がボール収納溝９１ａに対応する位
置まで挿入され、ボール９３が連結軸７の先端部
外周面に当接する。然る後、摺動筒９１に対する
押圧力を解除すると、第５図ｃに示すように摺動
筒９１がばね９２により図面左方向に後退される
と共に、ボール９３がテーパー面９１ｂによつて
内方に押圧されて、該連結軸７の先端部外周面に
圧接され、以つて、連結軸７がロツクされ、金型
の閉鎖姿勢が保持される。 According to the ball chuck 9, as shown in FIG. 5a, when the sliding tube 91 is moved rightward in the drawing against the spring 92 by a chuck release cylinder or the like, the tapered surface 91b is separated from the ball 93. The check becomes unchecked. At this time, the sliding shaft 96
is biased rightward in the drawing by a spring 97, and this sliding shaft 96 closes the inner peripheral opening of the ball storage groove 91a to prevent the ball 93 from falling off. In this state, when the connecting shaft 7 is inserted into the connecting hole 8 and the mold is closed, the tip of the connecting shaft 7 is inserted into the sliding tube 9.
is inserted into the connecting shaft insertion part formed inside 1,
Along with this, as shown in FIG. 5b, the sliding shaft 96
is retreated to the left in the drawing against the spring 97, the tip of the connecting shaft 7 is inserted to a position corresponding to the ball storage groove 91a, and the ball 93 comes into contact with the outer peripheral surface of the tip of the connecting shaft 7. After that, when the pressing force on the sliding tube 91 is released, the sliding tube 91 is retreated to the left in the drawing by the spring 92, and the ball 93 is moved inwards by the tapered surface 91b, as shown in FIG. 5c. The connecting shaft 7 is pressed against the outer circumferential surface of the distal end of the connecting shaft 7, thereby locking the connecting shaft 7 and maintaining the closed position of the mold.
この場合、ボール９３によるチヤツク力を高め
るために、連結軸７の先端部外周に多数の周溝を
設けてもよく、また、ボール９３を摩擦係数の大
きい、あるいは弾性変形可能な材料たとえばゴム
またはプラスチツクにて形成してもよい。 In this case, in order to increase the chuck force by the ball 93, a large number of circumferential grooves may be provided on the outer periphery of the tip end of the connecting shaft 7, and the ball 93 may be made of a material with a large coefficient of friction or elastically deformable, such as rubber, It may also be made of plastic.
次に射出成形工程について説明する。 Next, the injection molding process will be explained.
第２図，第３図において、金型６，６′の固定
金型６１，６１′を金型移動板５の内面に左右に
所定間隔を置いて取付けると共に、可動金型６
２，６２′を可動金型取付盤５４，５４′に取付
け、両金型６１，６１′と６２，６２′とを互いに
突合わせて金型６，６′を閉じた状態で、第５図
ａ，ｂ，ｃに示す工程で両金型６１，６１′と６
２，６２′を連結軸７とボールチヤツク９により
連結し、金型６，６′の閉鎖姿勢を保持する。そ
して、これら金型移動板５と金型６，６′等を上
記射出成形機に搬入し、金型移動板５をガイド１
６，３６または３６′に係合させると共に、ラツ
ク５１をピニオン５２に係合させ、可動金型取付
板５４，５４′をガイド１７，３７または３７′に
係合させる。 In FIGS. 2 and 3, the fixed molds 61 and 61' of the molds 6 and 6' are mounted on the inner surface of the mold movable plate 5 at a predetermined interval on the left and right, and the movable molds 6
FIG. In the steps shown in a, b, and c, both molds 61, 61' and 6
2 and 62' are connected by a connecting shaft 7 and a ball chuck 9 to maintain the closed posture of the molds 6 and 6'. Then, the mold moving plate 5 and the molds 6, 6', etc. are carried into the injection molding machine, and the mold moving plate 5 is moved to the guide 1.
6, 36 or 36', the rack 51 is engaged with the pinion 52, and the movable mold mounting plate 54, 54' is engaged with the guide 17, 37 or 37'.
然る後、駆動モータ５３を駆動し、ピニオン５
２とラツク５１により金型移動板５を左右いずれ
かに移動させ、一方の金型６を取出位置Ｂに搬入
させ、他方の金型６′を射出位置Ａに搬入させる
と、金型移動板５がクランプ装置１８，３８に係
合すると共に、可動金型取付盤５４がクランプ装
置３９に係合し、図外のリミツトスイツチ等の検
出器が作動し、駆動モータ５３が停止され、前記
クランプ装置１８，３８および３９が作動され、
金型移動板５と可動金型取付盤５４が固定盤３
１，１１と可動盤３４にそれぞれクランプされ
る。 After that, the drive motor 53 is driven, and the pinion 5
2 and the rack 51 to move the mold moving plate 5 to the left or right, and when one mold 6 is carried into the ejection position B and the other mold 6' is carried into the injection position A, the mold moving plate 5 engages with the clamp devices 18, 38, the movable mold mounting plate 54 engages with the clamp device 39, a detector such as a limit switch (not shown) is activated, the drive motor 53 is stopped, and the clamp device 39 is activated. 18, 38 and 39 are activated;
The mold moving plate 5 and the movable mold mounting plate 54 are the fixed plate 3
1, 11 and a movable platen 34, respectively.
次に、射出位置Ａにおいて、主型締装置１５が
作動され、可動盤１４が前進し、金型６′が型締
された後、射出装置２の射出ノズル２４が移動シ
リンダ２１により前進して金型６′に接続され、
該金型６′内に溶融樹脂が射出される。この射出
が終了すると、射出ノズル２４が後退して金型
６′から離脱され、主型締装置１５により可動盤
１２が後退して型締が解除される。ただし、この
型締を解除しても、第４図および第５図ｃに示す
ように、連結軸７の先端が連結孔８内でボールチ
ヤツク９によりロツクされ、金型６′の閉鎖姿勢
が保持されている。 Next, at the injection position A, the main mold clamping device 15 is activated, the movable platen 14 moves forward, and the mold 6' is clamped, after which the injection nozzle 24 of the injection device 2 is moved forward by the movable cylinder 21. connected to mold 6',
Molten resin is injected into the mold 6'. When this injection is completed, the injection nozzle 24 is retracted and removed from the mold 6', and the movable platen 12 is retracted by the main mold clamping device 15 to release the mold clamping. However, even if this mold clamping is released, the tip of the connecting shaft 7 is locked in the connecting hole 8 by the ball chuck 9, as shown in FIGS. 4 and 5c, and the closed posture of the mold 6' is maintained. has been done.
次に、クランプ装置１８，３８，３９による金
型移動板５および可動金型取付盤５４のクランプ
が解除された後、駆動モータ５３が駆動され、金
型６′が取出位置B′に搬入されると共に、金型６
が射出位置Ａに搬入される。 Next, after the mold moving plate 5 and the movable mold mounting board 54 are unclamped by the clamp devices 18, 38, and 39, the drive motor 53 is driven and the mold 6' is carried into the take-out position B'. At the same time, mold 6
is carried into injection position A.
而して、上記金型６′が取出位置B′に搬入され
ると、前記と同様の作動により金型移動板５と可
動金型取付盤５４′がクランプ装置３８′，３９′
により固定盤３１′と可動盤３４′にクランプさ
れ、金型開閉シリンダ３５′と可動盤３４′により
金型６′の閉鎖姿勢がより強固に保持され、この
状態で、該金型６′に冷却水供給手段（図示省
略）が接続されて冷却水が供給され、金型６′内
の樹脂が冷却固化されて所定形状に成形される。 When the mold 6' is carried to the take-out position B', the mold moving plate 5 and the movable mold mounting plate 54' are moved to the clamping devices 38', 39' by the same operation as described above.
The mold 6' is clamped to the fixed plate 31' and the movable plate 34', and the mold 6' is held in a closed position more firmly by the mold opening/closing cylinder 35' and the movable plate 34'. A cooling water supply means (not shown) is connected to supply cooling water, and the resin in the mold 6' is cooled and solidified to be molded into a predetermined shape.
次いで、第５図に示すボールチヤツク９の摺動
筒９１がチヤツク解除用シリンダ等によりばね９
２に抗して図面右方向に押圧され、テーパー面９
１ｂがボール９３から離間し、連結軸７のロツク
が解除された後、第２図に示す金型開閉シリンダ
５３′が後退作動され、可動盤３４′および可動金
型６２′が後退され、金型６′が開かれ、然る後、
エジエクタシリンダ４２′が前進され、成形品が
取出される。 Next, the sliding tube 91 of the ball chuck 9 shown in FIG.
2, the tapered surface 9 is pressed to the right in the drawing against
1b is separated from the ball 93 and the lock of the connecting shaft 7 is released, the mold opening/closing cylinder 53' shown in FIG. Mold 6' is opened, after which
The ejector cylinder 42' is advanced and the molded product is taken out.
なお、成形品の取出し後は、金型開閉シリンダ
５３′が前進作動され、金型６′が閉鎖されると共
に第５図ａ，ｂ，ｃに示す工程により連結軸７が
ボールチヤツク９によりロツクされ、金型６′の
閉鎖姿勢が保持される。 After taking out the molded product, the mold opening/closing cylinder 53' is moved forward to close the mold 6' and the connecting shaft 7 is locked by the ball chuck 9 in the steps shown in FIGS. 5a, b, and c. , the mold 6' is maintained in the closed position.
一方、上記取出位置B′で金型６′内のの樹脂の
冷却および成形品の取出しが行われている間に、
射出位置Ａにおいて、金型６に対し、前記と同様
の作用により型締、溶融樹脂の射出型締解除が行
われる。然る後、再び連結軸７とボールチヤツク
９により金型６，６′の閉鎖姿勢を保持した状態
で、駆動モータ５３等の作動により、金型移動板
５を図面左方向に移動させることにより、金型６
を取出位置Ｂに搬入し、金型６′を射出位置Ａに
搬入し、以下、上記の作動を繰返す。 On the other hand, while the resin in the mold 6' is being cooled and the molded product is being taken out at the taking out position B',
At the injection position A, the mold 6 is clamped and the mold for injection of molten resin is unclamped by the same action as described above. Thereafter, with the molds 6, 6' held in the closed position again by the connecting shaft 7 and the ball chuck 9, the mold moving plate 5 is moved to the left in the drawing by the operation of the drive motor 53, etc. Mold 6
The mold 6' is carried into the ejection position B, the mold 6' is carried into the injection position A, and the above operations are repeated.
こうして金型移動板５を左右に往復移動させ、
一方の金型６を射出位置Ａと取出位置Ｂとに交互
に搬入すると同時に、他方の金型６′を取出位置
B′と射出位置Ａとに交互に搬入し、射出位置Ａに
おいて、一方の金型６または６′に対して型締、
溶融樹脂の射出、型締解除を行い、この間に取出
位置Ｂにおいて、他方の金型６′または６内の樹
脂の冷却固化ならびに成形品の取出しを行う。こ
れによつて、作業をラツプさせ、単位時間当りの
生産効率をアツプできる。 In this way, the mold moving plate 5 is reciprocated left and right,
One mold 6 is carried alternately into the injection position A and the take-out position B, and at the same time the other mold 6' is brought into the take-out position.
B' and injection position A are carried in alternately, and at injection position A, mold clamping is performed for one mold 6 or 6'.
The molten resin is injected and the mold is released, and during this time, at the ejecting position B, the resin in the other mold 6' or 6 is cooled and solidified, and the molded product is ejected. This allows work to be wrapped up and production efficiency per unit time to be increased.
この場合、とくに連結軸７とボールチヤツク９
により相対向する固定金型６１，６１′と可動金
型６２，６２′とを互いに連結して金型６，６′の
閉鎖姿勢を保持した状態で金型６，６′を移動さ
せることにより、射出位置Ａに対して金型６，
６′をスムーズに搬入でき、主型締装置１５のス
トロークを短かくでき、主型締装置１５を小型化
できる。また、射出後、直ちに型締を解除して金
型６，６′を射出位置Ａから搬出できるので、主
型締装置１５による長時間の型締保持が不要とな
り、型締時間を必要最小限に短縮し得てエネルギ
ーロスをなくすことができ、かつ、金型６，６′
を射出位置Ａから取出位置Ｂ，B′に移動させる際
に、金型６，６′内の樹脂が漏洩することなく、
スムーズに移動できる。 In this case, especially the connecting shaft 7 and the ball chuck 9
By connecting the fixed molds 61, 61' and the movable molds 62, 62' facing each other to each other and moving the molds 6, 6' while maintaining the closed posture of the molds 6, 6'. , mold 6 for injection position A,
6' can be carried in smoothly, the stroke of the main mold clamping device 15 can be shortened, and the main mold clamping device 15 can be downsized. Furthermore, since the mold clamping can be immediately released after injection and the molds 6, 6' can be carried out from the injection position A, there is no need for the main mold clamping device 15 to hold the mold clamped for a long time, and the mold clamping time is kept to a minimum. It is possible to eliminate energy loss by reducing the time required for the molds 6 and 6'.
When moving from the injection position A to the ejection positions B and B', the resin in the molds 6 and 6' does not leak.
You can move smoothly.
以上説明した如く、本考案によれば、ボールチ
ヤツクにて連結軸をロツク、解除することにより
相対向する固定金型と可動金型を容易に連結、解
除でき、金型の閉鎖姿勢の保持を容易に行うこと
ができる。また、射出終了後、ボールチヤツクに
よる小さな保持力で金型の閉鎖姿勢を保持して金
型を直ちに移動できるので、この装置を、上記実
施例で述べたような金型を射出位置と取出位置と
に交互に移動させて射出成形を行う射出成形機に
用いることにより、主型締装置のストロークの短
縮、小型化、エネルギーロスの防止、成形サイク
ルタイムの短縮等に寄与でき、その利用価値を一
層高めることができる。 As explained above, according to the present invention, by locking and releasing the connecting shaft with a ball chuck, it is possible to easily connect and release the opposing fixed mold and movable mold, and it is easy to maintain the closed posture of the mold. can be done. In addition, after injection is completed, the mold can be moved immediately while maintaining the mold in its closed position with a small holding force by the ball chuck. By using it in an injection molding machine that performs injection molding by moving it alternately, it can contribute to shortening the stroke of the main mold clamping device, downsizing it, preventing energy loss, shortening molding cycle time, etc., and further increasing its utility value. can be increased.
第１図ａ，ｂは射出工程中における金型内樹脂
圧力を示す図、第２図は本考案に係る金型連結装
置の使用例を示す射出成形機全体の平面図、第３
図はその射出位置における側面図、第４図は本考
案の実施例を示す一部断面側面図、第５図ａ，
ｂ，ｃはそのボールチヤツクのチヤツク工程を示
す第４図部の拡大断面図である。
Ａ……射出位置、Ｂ，B′……取出位置、１１，
１２……固定盤、１４……可動盤、１５……主型
締装置、２……射出装置、３１，３２……固定
盤、３４……可動盤、４，４′……エジエクタ装
置、５……金型移動板、５４，５４′……可動金
型取付板、６，６′……金型、６１，６１′……固
定金型、６２，６２′……可動金型、７……連結
軸、８……連結孔、９……ボールチヤツク、９１
……摺動筒、９１ａ……ボール収納溝、９１ｂ…
…テーパー面、９２……ばね、９３……ボール、
９４……ばね、９５……ストツパ、９６……摺動
軸、９７……ばね。
Figures 1a and b are diagrams showing the resin pressure in the mold during the injection process, Figure 2 is a plan view of the entire injection molding machine showing an example of how the mold connecting device according to the present invention is used, and Figure 3 is a diagram showing the resin pressure in the mold during the injection process.
The figure is a side view at the injection position, FIG. 4 is a partially sectional side view showing an embodiment of the present invention, and FIGS.
b and c are enlarged sectional views of the part in FIG. 4 showing the chuck process of the ball chuck. A... Injection position, B, B'... Extraction position, 11,
12... Fixed plate, 14... Movable plate, 15... Main mold clamping device, 2... Injection device, 31, 32... Fixed plate, 34... Movable plate, 4, 4'... Ejector device, 5 ...Mold moving plate, 54, 54'...Movable mold mounting plate, 6,6'...Mold, 61,61'...Fixed mold, 62,62'...Movable mold, 7... ... Connection shaft, 8 ... Connection hole, 9 ... Ball chuck, 91
...Sliding tube, 91a...Ball storage groove, 91b...
...Tapered surface, 92...Spring, 93...Ball,
94...Spring, 95...Stopper, 96...Sliding shaft, 97...Spring.
Claims (1)
うち、少なくとも一方の金型に連結軸を突設し、
他方の金型に該連結軸を挿入し得る連結孔を設
け、かつ、該連結孔内にボールチヤツクを設けて
なるもので、該ボールチヤツクは、連結孔内に軸
方向に摺動自在に設けられた摺動筒と、この摺動
筒を軸方向に摺動させる駆動手段と、摺動筒内に
設けられた連結軸挿入部と、連結軸挿入部内に配
置された複数個のボールと、摺動筒の軸方向の摺
動に応じて上記ボールを連結軸挿入部に挿入され
た連結軸の外周面に圧接させる位置と離間させる
位置とに案内するチヤツク用テーパ面とを備えて
いることを特徴とする射出成形機における金型連
結装置。 A connecting shaft is provided protruding from at least one of the opposing fixed mold and movable mold of the injection molding machine,
The other mold is provided with a connecting hole into which the connecting shaft can be inserted, and a ball chuck is provided in the connecting hole, and the ball chuck is provided in the connecting hole so as to be slidable in the axial direction. A sliding tube, a driving means for sliding the sliding tube in the axial direction, a connecting shaft insertion portion provided in the sliding tube, a plurality of balls arranged in the connecting shaft insertion portion, and a sliding tube. It is characterized by comprising a chuck tapered surface that guides the ball to a position where it is brought into pressure contact with the outer circumferential surface of the connecting shaft inserted into the connecting shaft insertion part and a position where it is separated from the outer circumferential surface of the connecting shaft inserted in the connecting shaft insertion part in response to sliding in the axial direction of the cylinder. Mold connection device for injection molding machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18678881U JPS5889323U (en) | 1981-12-14 | 1981-12-14 | Mold connection device in injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18678881U JPS5889323U (en) | 1981-12-14 | 1981-12-14 | Mold connection device in injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5889323U JPS5889323U (en) | 1983-06-17 |
| JPS625298Y2 true JPS625298Y2 (en) | 1987-02-06 |
Family
ID=29989040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18678881U Granted JPS5889323U (en) | 1981-12-14 | 1981-12-14 | Mold connection device in injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5889323U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3436182C1 (en) * | 1984-10-03 | 1985-11-14 | Karl 7298 Loßburg Hehl | Injection mold for plastic injection molding machine with locking device |
-
1981
- 1981-12-14 JP JP18678881U patent/JPS5889323U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5889323U (en) | 1983-06-17 |
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