JPS6123087B2 - - Google Patents
Info
- Publication number
- JPS6123087B2 JPS6123087B2 JP12555979A JP12555979A JPS6123087B2 JP S6123087 B2 JPS6123087 B2 JP S6123087B2 JP 12555979 A JP12555979 A JP 12555979A JP 12555979 A JP12555979 A JP 12555979A JP S6123087 B2 JPS6123087 B2 JP S6123087B2
- Authority
- JP
- Japan
- Prior art keywords
- movable plate
- nut
- tie bar
- gear
- threaded portion
- 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
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
この発明は合成樹脂を射出或は押出などの手段
により成形する場合に用いる型締装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mold clamping device used when molding synthetic resin by means such as injection or extrusion.
固定プレートに対する可動プレートの移動スト
ロークを短縮化し、また型締シリンダや型閉じシ
リンダの簡素化を図つた型締装置が実公昭46―
22466号公報に開示されている。この型締装置は
タイバーにねじを施し、このねじに螺合させたナ
ツトをもつて型閉じ位置に移動したのちの可動プ
レートを固定するものであるが、タイバーのナツ
トが移動する部分をもねじを施したことと、ナツ
ト及びその回動装置とを可動プレートとは別に構
成したことから、可動プレートの開閉に時間を要
し、高速開閉を行なうためには、更に改良を施さ
ねばならないものであつた。 A mold clamping device that shortened the movement stroke of the movable plate relative to the fixed plate and simplified the mold clamping cylinder and mold closing cylinder was developed in 1974.
It is disclosed in Publication No. 22466. This mold clamping device has screws attached to the tie bars, and a nut screwed onto the screws to fix the movable plate after it has moved to the mold closing position. Because the nut and its rotation device were constructed separately from the movable plate, it took time to open and close the movable plate, and further improvements were required in order to open and close the movable plate at high speed. It was hot.
この発明は上記従来の型締装置の欠点を排除
し、更に一段と型締能率が改善された装置を提供
するものである。 The present invention eliminates the drawbacks of the conventional mold clamping device described above and provides a device with further improved mold clamping efficiency.
以下この発明を図示の竪形の実施例により詳細
に説明する。 The present invention will be explained in detail below with reference to the illustrated vertical embodiment.
１は機台に取付けた固定プレートで、四隅にタ
イバー２が縦に固着してあり、かつタイバー２に
は可動プレート３が、上記固定プレート１に対し
て進退自在に四隅を貫挿して設けてある。 Reference numeral 1 denotes a fixed plate attached to the machine base, and tie bars 2 are vertically fixed to the four corners of the fixed plate 1. A movable plate 3 is provided on the tie bar 2 and extends through the four corners of the fixed plate 1 so as to be able to move forward and backward. be.
上記タイバー２のそれぞれは、型締力の伝達経
路となる基部２ａの直径を大きく形成したものか
らなり、その基部２ａの先端、即ち上記可動プレ
ート３の型閉じ位置に当る部分にねじを施してね
じ部２ｂとなすとともに、ねじ部２ｂより先方は
基部２ａよりも小径に形成して可動プレート３の
案内部２ｃとしてなる。 Each of the tie bars 2 has a base 2a formed with a large diameter, which serves as a mold clamping force transmission path, and the tip of the base 2a, that is, the part corresponding to the mold closing position of the movable plate 3, is threaded. A threaded portion 2b is formed, and a portion beyond the threaded portion 2b is formed to have a smaller diameter than the base portion 2a, and serves as a guide portion 2c for the movable plate 3.
４は可動プレート３の移動シリンダで、各タイ
バー２の上端にわたり横架固定したプレート５の
両側に、ピストンロツド６を下側にして縦に取付
けてあり、かつピストンロツド６は可動プレート
３の側部に連結してある。 Reference numeral 4 designates a moving cylinder for the movable plate 3, which is installed vertically on both sides of the plate 5, which is horizontally fixed across the upper end of each tie bar 2, with the piston rod 6 facing downward; It is connected.
上記可動プレート３は四隅にタイバー貫挿部７
を有し、その貫挿部７に形成した空間部８に、上
記タイバー２のねじ部２ｂと螺合する歯車付きナ
ツト９が嵌挿してある。またナツト９は可動プレ
ート側に取付けたモータ１０により作動する回動
装置の歯車１１と連絡し、その歯車１１の回動に
より、上記ねじ部２ｂにねじ込まれ、また戻され
る。 The movable plate 3 has tie bar insertion portions 7 at the four corners.
A nut 9 with a gear, which is screwed into the threaded portion 2b of the tie bar 2, is fitted into a space 8 formed in the insertion portion 7. The nut 9 also communicates with a gear 11 of a rotating device operated by a motor 10 attached to the movable plate, and is screwed into and returned to the threaded portion 2b by rotation of the gear 11.
上記歯車１１は第３図に例示するように、可動
プレート３四隅の各ナツト９，９……の各歯車と
噛合する外接歯車からなり、モータ１０により回
転するピニオン１２によつて正逆両方向に回転可
能に可動プレート３の互に接合した前面プレート
３１と、後面プレート３２との合わせ目に装置し
てある。 As illustrated in FIG. 3, the gear 11 is an external gear that meshes with the gears of nuts 9, 9, . The device is installed at the joint between the front plate 31 and the rear plate 32 of the movable plate 3, which are rotatably joined to each other.
なお上記歯車１１は内側に歯を有する内接歯車
でもよく、また場合によつては各ナツト９，９…
…をそれぞれに設けた回動装置により回動させて
もよい。 The gear 11 may be an internal gear having teeth on the inside, and depending on the case, each nut 9, 9...
... may be rotated by rotation devices provided respectively.
次に作用について説明すると、第１図に示す型
開き位置から移動シリンダ４，４の作動により可
動プレート３が固定プレート１の方向に移動す
る。そしてねじ部２ｂのそばのリミツトスイツチ
１３が押されONすると、移動シリンダ４がスロ
ーダンすると同時に、モータ１０が作動して歯車
１１が回転し、ナツト９がねじ部２ｂにねじ込ま
れる。このねじ部２ｂへのねじ込みは、可動プレ
ート３によつてリミツトスイツチ１４がONされ
るまで行なわれる。 Next, the operation will be explained. From the mold opening position shown in FIG. 1, the movable plate 3 is moved in the direction of the fixed plate 1 by the operation of the moving cylinders 4, 4. When the limit switch 13 near the threaded portion 2b is pressed and turned on, the moving cylinder 4 slows down, the motor 10 is activated, the gear 11 rotates, and the nut 9 is screwed into the threaded portion 2b. This screwing into the threaded portion 2b is continued by the movable plate 3 until the limit switch 14 is turned on.
第２図はナツト９のねじ込みを完了した状態を
示すものであつて、可動プレート３は上記ナツト
９によりタイバー２に固定され、固定プレートに
内装した強力型締シリンダ１５の作動によりラム
１６が前進し、金型１７，１８を強力に型締めし
た時においても移動することがなく、型締力はナ
ツト９を介してタイバー２に伝達される。 FIG. 2 shows a state in which the nut 9 has been completely screwed in. The movable plate 3 is fixed to the tie bar 2 by the nut 9, and the ram 16 moves forward by the operation of the strong mold clamping cylinder 15 housed in the fixed plate. However, even when the molds 17 and 18 are strongly clamped, they do not move, and the clamping force is transmitted to the tie bar 2 via the nut 9.
強力型締の後に射出成形が行なわれ、型締が解
除されると、ナツト９がねじ戻される。このとき
移動シリンダ４も低速作動して、ナツト９のねじ
部２ｂからの離脱を助ける。そしてナツト９が完
全にねじ部２ｂから外れると移動シリンダ４は高
速復帰して第１図の位置に可動プレート３を戻
し、リミツトスイツチ１９をONして型開きを完
了する。 Injection molding is performed after strong mold clamping, and when the mold clamping is released, the nuts 9 are screwed back. At this time, the moving cylinder 4 also operates at low speed to help the nut 9 come off from the threaded portion 2b. When the nut 9 is completely removed from the threaded portion 2b, the movable cylinder 4 returns at high speed to return the movable plate 3 to the position shown in FIG. 1, and the limit switch 19 is turned on to complete the mold opening.
この発明は上述のように、タイバー２を型締力
の伝達路となる大径の基部２ａと、可動プレート
３を貫挿する小径の案内部２ｃとから構成し、可
動プレート３の型閉じ位置に当る基部先端にねじ
部２ｂを設け、このねじ部２ｂにねじ着されるナ
ツト９を可動プレート３のタイバー貫挿部７に回
転自在に嵌挿するとともに、可動プレート上に取
付けたナツト回動装置と連絡し、かつ該ナツト９
を可動プレートと共にねじ部２ｂに移動する装置
４を可動プレート側に設けてなることから、タイ
バー上のナツトを回動しつつ可動プレートを開閉
移動する従来装置よりも、型開閉動作を高速に行
うことができる。 As described above, in this invention, the tie bar 2 is composed of a large-diameter base portion 2a that serves as a transmission path for mold clamping force, and a small-diameter guide portion 2c that penetrates the movable plate 3. A threaded portion 2b is provided at the tip of the base corresponding to the threaded portion 2b, and a nut 9 screwed to this threaded portion 2b is rotatably inserted into the tie bar insertion portion 7 of the movable plate 3, and the nut attached on the movable plate is rotated. in communication with the device and the nut 9
Since a device 4 is provided on the movable plate side to move the movable plate to the screw portion 2b together with the movable plate, the mold opening/closing operation can be performed at a higher speed than the conventional device which opens and closes the movable plate while rotating the nut on the tie bar. be able to.
またねじ部は基部先端だけでよいから、ねじ加
工も容易となるばかりか、ナツトの回動も少なく
済み、ナツトによるタイバーと可動プレートとの
結合及び解除を迅速に行うことができる。しかも
タイバーの案内部には型締力が作用しないので、
小径に形成しても型締に支障を来たさず、それに
よつてタイバー重量の軽減を図ることができる。
またタイバーにおける型締ストロークが長くなる
ようなこともないので、型締時のタイバーの伸び
も小さく、型締に要する油量も少なく、昇圧時間
が短縮されるなどの特長を有する。 Further, since the threaded portion only needs to be provided at the tip of the base, not only is thread processing easy, but the rotation of the nut is also reduced, and the tie bar and movable plate can be quickly connected and disconnected by the nut. Moreover, since no mold clamping force acts on the guide part of the tie bar,
Even if the tie bar is formed to have a small diameter, it does not interfere with mold clamping, and thereby the weight of the tie bar can be reduced.
Furthermore, since the mold clamping stroke of the tie bars does not become long, the tie bars elongate less during mold clamping, the amount of oil required for mold clamping is small, and the pressurization time is shortened.
図面はこの発明に係る型締装置の１実施例を示
すもので、第１図は型開き位置における一部縦断
正面図、第２図は型閉じ位置における一部縦断正
面図、第３図は第２図―線断面図である。
１……固定プレート、２……タイバー、２ｂ…
…ねじ部、３……可動プレート、７……貫挿部、
９……ナツト、１０……モータ、１１……歯車、
１２……ピニオン。
The drawings show one embodiment of the mold clamping device according to the present invention, and FIG. 1 is a partially longitudinal front view in the mold opening position, FIG. 2 is a partially longitudinal front view in the mold closing position, and FIG. 3 is a partially longitudinal front view in the mold closing position. FIG. 2 is a sectional view along the line. 1... Fixed plate, 2... Tie bar, 2b...
...threaded part, 3...movable plate, 7...penetration part,
9...nut, 10...motor, 11...gear,
12...Pinion.
Claims (1)
在に保持するタイバーにねじ部を設け、そのねじ
部にねじ着された歯車付きナツトにより射出成形
時における可動プレートの固定を行う装置におい
て、上記タイバーを型締力の伝達路となる大径の
基部と、上記可動プレートを貫挿する小径の案内
部とから構成し、上記可動プレートの型閉じ位置
に当る基部先端に上記ねじ部を設け、このねじ部
にねじ着される上記ナツトを、上記可動プレート
のタイバー貫挿部に回転自在に嵌挿するととも
に、可動プレート上に取付けたナツト回動装置と
連絡し、かつ該ナツトを上記可動プレートと共に
ねじ部に移動する装置を可動プレート側に設けて
なることを特徴とする型締装置。 ２ ナツト回動装置はタイバーごとに設けた貫挿
部内の各ナツトと内接または外接する１個の歯車
と、その歯車をモータにより回転するピニオンと
からなり、かつ上記歯車及びモータとピニオンは
可動プレートに装置されている特許請求の範囲第
１項記載の型締装置。[Scope of Claims] 1. A device that fixes the movable plate during injection molding by providing a threaded portion on the tie bar that holds the movable plate so as to move forward and backward with respect to the fixed plate, and using a nut with a gear screwed to the threaded portion. The tie bar is composed of a large-diameter base serving as a transmission path for mold clamping force, and a small-diameter guide portion that penetrates the movable plate, and the threaded portion is attached to the tip of the base corresponding to the mold closing position of the movable plate. The nut screwed onto this threaded portion is rotatably inserted into the tie bar insertion portion of the movable plate, and is in communication with a nut rotation device mounted on the movable plate, and the nut is A mold clamping device characterized in that a device is provided on the movable plate side to move to the screw portion together with the movable plate. 2. The nut rotation device consists of a gear that is inscribed or circumscribed with each nut in the penetration part provided for each tie bar, and a pinion that rotates the gear with a motor, and the gear, motor, and pinion are movable. The mold clamping device according to claim 1, which is installed on a plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12555979A JPS5649237A (en) | 1979-09-28 | 1979-09-28 | Clamping device for mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12555979A JPS5649237A (en) | 1979-09-28 | 1979-09-28 | Clamping device for mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5649237A JPS5649237A (en) | 1981-05-02 |
| JPS6123087B2 true JPS6123087B2 (en) | 1986-06-04 |
Family
ID=14913188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12555979A Granted JPS5649237A (en) | 1979-09-28 | 1979-09-28 | Clamping device for mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5649237A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58192291U (en) * | 1982-06-17 | 1983-12-21 | 日立造船株式会社 | floating roof structure of tank |
| JPS60212320A (en) * | 1984-04-09 | 1985-10-24 | Toshiba Mach Co Ltd | Mold clamping apparatus |
| JPS61193821A (en) * | 1985-02-22 | 1986-08-28 | Fanuc Ltd | Clamping apparatus of injection molding machine |
| CN104552842B (en) * | 2014-12-26 | 2017-06-16 | 中国计量大学 | Self-locking two trigger clamping opens closing method |
| CN104476742B (en) * | 2014-12-26 | 2017-04-12 | 中国计量大学 | Self-locking clamping mechanism of injection molding machine |
| CN104527005B (en) * | 2014-12-26 | 2017-07-25 | 中国计量大学 | Self-locking clamping based on two triggers |
| CN104527004B (en) * | 2014-12-26 | 2017-05-24 | 中国计量大学 | Mold opening and closing method for self-locking type mold closing mechanism based on two-plate machine |
| CN104527001B (en) * | 2014-12-26 | 2017-03-08 | 中国计量大学 | Self-locking two trigger clamping |
-
1979
- 1979-09-28 JP JP12555979A patent/JPS5649237A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5649237A (en) | 1981-05-02 |
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