JPS62128722A - Projecting device in mold clamping mechanism - Google Patents
Projecting device in mold clamping mechanismInfo
- Publication number
- JPS62128722A JPS62128722A JP27002885A JP27002885A JPS62128722A JP S62128722 A JPS62128722 A JP S62128722A JP 27002885 A JP27002885 A JP 27002885A JP 27002885 A JP27002885 A JP 27002885A JP S62128722 A JPS62128722 A JP S62128722A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- mold
- screw
- projecting member
- movable disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C2045/4036—Ejector constructions; Ejector operating mechanisms driven by a screw and nut mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は合成樹脂成形機の型締機構における成形品の
突出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a molded product ejecting device in a mold clamping mechanism of a synthetic resin molding machine.
（従来の技術）
ねじ軸と回動部材とを組合わせて、金型の開閉及び型締
を行う機構は、特公昭５１−１３４９５号及び実開昭５
９−２４３４４号に開示されている。(Prior art) A mechanism for opening, closing and clamping a mold by combining a screw shaft and a rotating member is disclosed in Japanese Patent Publication No. 51-13495 and Japanese Utility Model Publication No. 5
No. 9-24344.
これらの従来機構が有する成形品の突出装置は、ねじ軸
内に貫装された１本の突出棒からなる。The molded product ejecting device of these conventional mechanisms consists of a single ejecting rod inserted into a screw shaft.
（考案が解決しようとする問題点）
上記突出装置では、型開動作を利用して成形品の突出し
を行う構造からなるため、突出ストロークは型開停止位
置に関連させて設定しなくてはならず、また突出速度、
突出力、突出回数等も型開動作で設定しなければならな
いから、設定が面倒であるばかりか、複数回突出の時は
、金型を複数回往復させなくてはならず、動力消費が太
き（なり、サイクルアップにも影響を及ぼすなどの問題
があった。(Problem to be solved by the invention) Since the ejection device described above has a structure that ejects the molded product using the mold opening operation, the ejection stroke must be set in relation to the mold opening stop position. Also, the ejection speed,
The ejection force, number of ejections, etc. must be set during the mold opening operation, which is not only cumbersome to set, but also requires reciprocating the mold multiple times when ejecting multiple times, which increases power consumption. There were problems such as damage to the product and impact on cycle-up.
（問題点を解決するための手段）
この発明は、突出装置をねじ軸に内装した場合の上記問
題点を解決するために考えられたものであって、その目
的とするところは、突出部材がねじ軸内に設けられてい
ても、型開動作を利用することなく突出操作を行うこと
ができる新たな装置を提供することにある。(Means for Solving the Problems) This invention has been devised to solve the above-mentioned problems when a protruding device is installed inside a screw shaft, and its purpose is to An object of the present invention is to provide a new device that can perform an ejection operation without using a mold opening operation even if it is installed in a screw shaft.
上記目的によるこの発明は、可動盤に連結したねじ軸の
内部に、中空の回転軸を先端に突設したねじ棒を可動盤
側に位置させて設け、該ねじ棒に可動盤を貫通する突出
部材を軸方向に移動自在に螺合するとともに、回転軸内
に駆動軸を嵌挿してなることを要旨とするものである。This invention for the above-mentioned purpose provides a threaded rod with a hollow rotary shaft protruding from the tip inside a screw shaft connected to a movable platen, located on the movable platen side, and a protrusion that penetrates the movable platen on the threaded rod. The gist is that members are screwed together so as to be movable in the axial direction, and a drive shaft is inserted into the rotating shaft.
（作 用）
上記構成では、駆動軸により回転軸がねじ軸内にて回転
すると、先端のねじ棒も回転する。このねじ棒には突出
部材が軸方向に移動自在に螺合されていることから、突
出部材がねじリードにより移動し、正回転のときには送
り出されて成形品の突出を行い、また逆回転では元の位
置に戻される。(Function) In the above configuration, when the rotary shaft is rotated within the screw shaft by the drive shaft, the screw rod at the tip also rotates. Since the protruding member is screwed onto this threaded rod so that it can move freely in the axial direction, the protruding member moves by the screw lead and is sent out to eject the molded product when rotating in the forward direction, and returns to its original position when rotating in the reverse direction. is returned to the position.
以下この発明を図示の実施例により更に具体的に説明す
る。The present invention will be explained in more detail below with reference to illustrated embodiments.
（実施例）
型締装置１は、機台２上の一対の固定盤３，４に架設し
たタイバー５，５と、該タイバー５に移動自在に取付け
た可動盤６とを有する。上記固定盤４と可動盤６との対
向面には、図面では省略したが金型が設けてあり、また
可動盤６の背面中央にはゾールねじ溝を周囲に施した中
空のねじ軸７が連結しである。(Example) The mold clamping device 1 has tie bars 5, 5 installed on a pair of fixed plates 3, 4 on a machine stand 2, and a movable plate 6 movably attached to the tie bars 5. Although not shown in the drawing, a mold is provided on the facing surfaces of the fixed platen 4 and the movable platen 6, and in the center of the back of the movable platen 6 there is a hollow screw shaft 7 with a sol screw groove around the periphery. It is connected.
このねじ軸７は、上記固定盤３にベアリング８をもって
回転自在に貫装された円筒形の回転部材９に挿入され、
かつ回転部材９の前端部内に設けたねじ受部材１０と、
多数のが一ル１１を介して噛合している。This screw shaft 7 is inserted into a cylindrical rotating member 9 rotatably inserted through the fixed platen 3 with a bearing 8,
and a screw receiving member 10 provided within the front end of the rotating member 9;
A large number of them are in mesh with each other via one loop 11.
上記回転部材９の後端部周囲には、上記固定盤３．４に
わたり回転自在に横架した伝動軸１２の軸端の伝動歯車
１３と噛合した歯車１４が一体に取付けである。A gear 14 is integrally attached around the rear end of the rotating member 9 and meshed with a transmission gear 13 at the shaft end of a transmission shaft 12 which is rotatably suspended across the stationary plate 3.4.
上記ねじ軸７の内部には、先端にねじ棒１５を突設した
中空の回転軸１６が、該ねじ棒１５を可動盤６側に位置
させて、ねじ軸内側に形成したフランジ１８に接すると
ころまで挿入してあり、ねじ棒１５には可動盤６を貫通
する筒状の突出部材１７がねじ込んで取付けである。Inside the screw shaft 7, a hollow rotary shaft 16 with a threaded rod 15 protruding from its tip is located at a point where the screw rod 15 is positioned on the movable platen 6 side and touches a flange 18 formed inside the screw shaft. A cylindrical protruding member 17 passing through the movable platen 6 is screwed into the threaded rod 15 to attach it.
この突出部材１７は、ねじ軸内側に設けた軸方向の溝１
９と、その溝１９に遊嵌した滑りキー加とＫよって、ね
じ棒１５と共に回転するのを阻止され、軸方向にのみ往
復動するようになっている。This protruding member 17 has an axial groove 1 provided inside the screw shaft.
9 and a sliding key K loosely fitted into the groove 19, the screw rod 15 is prevented from rotating together with the threaded rod 15, and reciprocated only in the axial direction.
またねじ軸７の後端部開口は角穴に形成され、その開口
から内部に角軸による駆動軸２１が挿入しである。The opening at the rear end of the screw shaft 7 is formed into a square hole, into which a square drive shaft 21 is inserted.
この駆動軸２１は、上記固定盤３の外側を被覆するカバ
ー兼用の受部材部に取付けたモータおと連結している。This drive shaft 21 is connected to a motor attached to a receiving member portion that covers the outside of the fixed platen 3 and also serves as a cover.
上記構成において、回転駆動源を作動して伝動軸１２を
回転させると、伝動歯車１３、歯車１４を介して回転部
材９が回転し、ねじ軸７のねじリードによってねじ軸７
及びねじ軸７に連結した可動盤６、内部の回転軸１６、
突出部材１７が前進または後退して型開閉が行われる。In the above configuration, when the rotational drive source is activated to rotate the transmission shaft 12, the rotating member 9 rotates via the transmission gear 13 and the gear 14, and the screw lead of the screw shaft 7 causes the screw shaft 7 to rotate.
and a movable platen 6 connected to the screw shaft 7, an internal rotating shaft 16,
The protruding member 17 moves forward or backward to open and close the mold.
なお型開閉の切り換えは、伝動軸１２０回転方向の切り
換えによって行なわれる。Note that switching between opening and closing of the mold is performed by switching the rotation direction of the transmission shaft 120.
次に、突出部材１７の作動は、次のようにして行なわれ
る。可動盤６が突出可能位置に達したら、モータおを回
転させる。回転力は駆動軸２１から回転軸１６に伝達さ
れ、ねじ棒１５のネジリードによって突出部材１７が前
進する。それにより突出部材１７が可動盤６の表面より
突出して、金型内の突出部材（図は省略）を押圧して成
形品を離型させる。Next, the operation of the protruding member 17 is performed as follows. When the movable platen 6 reaches the ejectable position, the motor is rotated. The rotational force is transmitted from the drive shaft 21 to the rotating shaft 16, and the protruding member 17 is moved forward by the threaded lead of the threaded rod 15. As a result, the protruding member 17 protrudes from the surface of the movable platen 6, presses the protruding member (not shown) in the mold, and releases the molded product.
そして突出部材１７が前進限に対したら、モータｎを逆
転すると上記と逆に突出部材１７が後退する。When the protruding member 17 reaches its forward limit, when the motor n is reversed, the protruding member 17 moves backward in the opposite direction.
数回突出動作を行なわせたいときには、上記モータ田の
正逆回転を数回繰り返せば良い。If it is desired to perform the ejection operation several times, it is sufficient to repeat the forward and reverse rotation of the motor several times.
第３図に示す実施例は、駆動軸２１の後端を受部材ｎに
支承するとともに、軸上に歯車２４を設け、この歯車２
４を上記伝動軸１２の延長端に取付けた伝動歯車５と噛
合して、伝動歯車部によりねじ軸７を回転するようにし
ている。この場合には、上記回転部材９の伝動歯車１３
と、伝動歯車５０両方に電磁クラッチ２６ 、２７を設
けて切換が出来るようにして置く。In the embodiment shown in FIG. 3, the rear end of the drive shaft 21 is supported by a receiving member n, and a gear 24 is provided on the shaft.
4 meshes with a transmission gear 5 attached to the extended end of the transmission shaft 12, so that the screw shaft 7 is rotated by the transmission gear portion. In this case, the transmission gear 13 of the rotating member 9
In addition, electromagnetic clutches 26 and 27 are provided on both transmission gears 50 to enable switching.
このように構成すれば、モータ、モータアンプ、制御装
置等を共用できるので構造が簡単になりコストも安くな
る。With this configuration, the motor, motor amplifier, control device, etc. can be shared, resulting in a simpler structure and lower cost.
この実施例では、型開閉時にはクラッチ２７が切れてい
てクラッチ２６は継がっており、伝動軸１２の回転によ
り伝動歯車１４、回転部材７が回転して型開閉が行われ
る。また突出動作時は、クラッチｎが継がってクラッチ
２６が切れるので伝動歯車１４は回転せず、前記と同様
に回転軸１６側のみが回転して、そこに突出部材１７の
前進による突出しが生じ、突出後には伝動軸１２の逆回
転により突出部材１７が後退して可動盤６内に収まる。In this embodiment, when opening and closing the mold, the clutch 27 is disengaged and the clutch 26 is engaged, and the rotation of the transmission shaft 12 rotates the transmission gear 14 and the rotating member 7, thereby opening and closing the mold. In addition, during the protruding operation, the clutch n is engaged and the clutch 26 is disengaged, so the transmission gear 14 does not rotate, and only the rotating shaft 16 side rotates as described above, and protrusion occurs there due to the forward movement of the protruding member 17. After protruding, the protruding member 17 is retracted by reverse rotation of the transmission shaft 12 and is housed within the movable platen 6.
この実施例中、ねじ軸７及びねじ棒１５のねじのリード
角は５°以下としこのでクラッチｎを切っても逆転する
ことはない。この場合、ブレーキなどを用いて保持させ
ても良い。またクラッチｎは、伝動軸１２上に設けずに
、駆動軸２１上に設けても良いし、伝動軸１２と駆動軸
２１の間の力の伝達は歯車によラス、チェーンとスジロ
ケット、プーリーとベルト等の公知の手段が利用できる
。In this embodiment, the lead angle of the threads of the threaded shaft 7 and the threaded rod 15 is 5° or less, and even if the clutch n is disengaged at this point, there will be no reverse rotation. In this case, it may be held using a brake or the like. Furthermore, the clutch n may be provided on the drive shaft 21 instead of on the transmission shaft 12, and the force between the transmission shaft 12 and the drive shaft 21 can be transmitted by a gear, a chain, a threaded rocket, or a pulley. Known means such as a belt and a belt can be used.
更にまた図示の例では突出部材１７の軸方移動を溝１９
と滑りキー九との嵌合により行い、回転軸１６の軸方向
移動は角穴と角軸とにより行っているが、他にスプライ
ン、セレーション等を用いて行うこともできる。Furthermore, in the illustrated example, the axial movement of the protruding member 17 is controlled by the groove 19.
The movement of the rotary shaft 16 in the axial direction is performed by a square hole and a square shaft, but splines, serrations, etc. may also be used.
なお郡は射出装置を示す。Note that the group indicates the injection device.
（発明の効果）
この発明は上述のように、ねじ軸の内部に、中空の回転
軸を先端に突設したねじ棒を可動盤側に位置させて設け
、該ねじ棒に可動盤を貫通する突出部材を軸方向に移動
自在に螺合するとともに、回転軸内に駆動軸を嵌挿して
、その駆動軸により回転軸と共にねじ棒を回転するよう
に構成したことから、ねじ軸に突出部材を仕込んだもの
でありながら、型開停止位置に関連させて突出ストロー
クを設定する必要がなく、金型が開いた後であれば可動
盤が移動中でも突出操作が行えるので、型開きから型閉
じに要する時間を短縮でき、突出回数も自由に、そして
速度及びストローク等も回転軸の回転速度及び回転量を
制御することによって任意に設定できるため、操作性が
向上するばかりか成形条件の設定も容易となるなどの特
長を有する。(Effects of the Invention) As described above, this invention provides a threaded rod with a hollow rotary shaft protruding from the tip inside the screw shaft, positioned on the movable platen side, and a threaded rod that penetrates the movable platen. The protruding member is screwed together so as to be movable in the axial direction, and a drive shaft is inserted into the rotating shaft, so that the drive shaft rotates the threaded rod together with the rotating shaft. Even though the mold is loaded, there is no need to set the ejection stroke in relation to the mold opening stop position, and the ejection operation can be performed even when the movable platen is moving after the mold is opened, so it is easy to change from mold opening to mold closing. The required time can be shortened, the number of ejections can be freely set, and the speed and stroke can be set arbitrarily by controlling the rotation speed and amount of rotation of the rotating shaft, which not only improves operability but also makes it easy to set molding conditions. It has the following characteristics.
図面はこの発明に係る型締機構における突出装置の実施
例を示すもので、第１図は型開時の縦断側面図、第２図
は突出時の縦断側面図、第３図は他の実施例の型開時の
縦断側面図である。
１・・・・・・型締機構 ３，４・・・・・・固
定盤６・・・・・・可動盤 ７・・・・・・ね
じ軸９・・・・−・回転部材 １０・・・・・・
ねじ受部材１１・・・・・・？−ル １２・・
・・・・伝動軸１３・・・・・・伝動軸 １４
・・・・・・歯車１５・・・・・・ねじ棒 １
６・・・・・・回転軸１７・・・・・・突出部材
特許出願人 日精樹脂工業株式会社
外１名The drawings show an embodiment of the ejecting device in the mold clamping mechanism according to the present invention, in which Fig. 1 is a longitudinal sectional side view when the mold is opened, Fig. 2 is a longitudinal sectional side view when the mold is ejected, and Fig. 3 is another embodiment. FIG. 3 is a vertical side view of the example when the mold is opened. 1... Mold clamping mechanism 3, 4... Fixed platen 6... Movable platen 7... Screw shaft 9... Rotating member 10.・・・・・・
Screw receiving member 11...? -Le 12...
...Transmission shaft 13...Transmission shaft 14
...Gear 15 ...Threaded rod 1
6...Rotating shaft 17...Protruding member patent applicant: 1 person other than Nissei Jushi Kogyo Co., Ltd.
Claims (1)
の可動盤に連結したねじ軸を上記固定盤の一方に設けた
回転部材にねじ込み、該回転部材と上記ねじ軸とにより
回転力を推力に変換して可動盤を開閉動する型締機構に
おいて、 上記ねじ軸の内部に、中空の回転軸を先端に突設したね
じ棒を可動盤側に位置させて設け、該ねじ棒に可動盤を
貫通する突出部材を軸方向に移動自在に螺合するととも
に、回転軸内に駆動軸を嵌挿してなることを特徴とする
型締機構における突出装置。[Claims] A movable plate is disposed between a pair of fixed plates placed oppositely on the machine base, and a screw shaft connected to the movable plate is screwed into a rotating member provided on one of the fixed plates. In a mold clamping mechanism that opens and closes a movable plate by converting rotational force into thrust using a member and the above-mentioned screw shaft, a threaded rod with a hollow rotating shaft protruding from the tip is placed inside the above-mentioned screw shaft on the side of the movable plate. A protrusion device in a mold clamping mechanism, characterized in that the protrusion member that penetrates the movable platen is screwed onto the threaded rod so as to be movable in the axial direction, and a drive shaft is fitted into the rotating shaft. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27002885A JPS62128722A (en) | 1985-11-29 | 1985-11-29 | Projecting device in mold clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27002885A JPS62128722A (en) | 1985-11-29 | 1985-11-29 | Projecting device in mold clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62128722A true JPS62128722A (en) | 1987-06-11 |
| JPH0217333B2 JPH0217333B2 (en) | 1990-04-20 |
Family
ID=17480525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27002885A Granted JPS62128722A (en) | 1985-11-29 | 1985-11-29 | Projecting device in mold clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62128722A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0285672A1 (en) * | 1986-10-13 | 1988-10-12 | Fanuc Ltd. | Ejector-carrying straight-hydraulic mold clamping system |
| EP0503068A1 (en) * | 1990-03-29 | 1992-09-16 | Fanuc Ltd. | Ejector mechanism of injection molding machine |
| US6916169B2 (en) | 2000-02-28 | 2005-07-12 | Sumitomo Heavy Industries, Ltd. | Drive apparatus for injection molding machine |
| WO2006117807A1 (en) * | 2005-05-02 | 2006-11-09 | Dibi S.R.L. | Electromechanical drive horizontal bench press for thermoplastics injection molding |
| CN104441512A (en) * | 2014-11-21 | 2015-03-25 | 叶维 | Injection mould closing and opening device containing gear racks and rolling wheels |
-
1985
- 1985-11-29 JP JP27002885A patent/JPS62128722A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0285672A1 (en) * | 1986-10-13 | 1988-10-12 | Fanuc Ltd. | Ejector-carrying straight-hydraulic mold clamping system |
| EP0503068A1 (en) * | 1990-03-29 | 1992-09-16 | Fanuc Ltd. | Ejector mechanism of injection molding machine |
| US6916169B2 (en) | 2000-02-28 | 2005-07-12 | Sumitomo Heavy Industries, Ltd. | Drive apparatus for injection molding machine |
| WO2006117807A1 (en) * | 2005-05-02 | 2006-11-09 | Dibi S.R.L. | Electromechanical drive horizontal bench press for thermoplastics injection molding |
| CN104441512A (en) * | 2014-11-21 | 2015-03-25 | 叶维 | Injection mould closing and opening device containing gear racks and rolling wheels |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0217333B2 (en) | 1990-04-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |