JPS63286316A - Mold clamping device provided with control mechanism for parallelism of platen - Google Patents
Mold clamping device provided with control mechanism for parallelism of platenInfo
- Publication number
- JPS63286316A JPS63286316A JP12030987A JP12030987A JPS63286316A JP S63286316 A JPS63286316 A JP S63286316A JP 12030987 A JP12030987 A JP 12030987A JP 12030987 A JP12030987 A JP 12030987A JP S63286316 A JPS63286316 A JP S63286316A
- Authority
- JP
- Japan
- Prior art keywords
- platen
- mold clamping
- movable platen
- parallelism
- mold
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000036555 skin type Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection
-
- 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
-
- 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
- B29C45/1775—Connecting parts, e.g. injection screws, ejectors, to drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/068—Drive connections, e.g. pivotal
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は射出成形機の型締装置に関し、特に、型締力を
トラブルリンクなどの倍力機構でなくＡＣサーボモータ
等のアクチュエータの力で直接に型締力を発生する形式
の型締機構（直動式型締機構）におけるプラテン間の平
行度調整機構に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a mold clamping device for an injection molding machine, and particularly to a mold clamping device that directly uses the force of an actuator such as an AC servo motor to directly generate mold clamping force, rather than using a booster mechanism such as a trouble link. The present invention relates to a parallelism adjustment mechanism between platens in a mold clamping mechanism that generates mold clamping force (direct acting mold clamping mechanism).
従来技術
射出成形機の型締機構は通常、四本のタイバーで四隅が
相互に連結された固定プラテン（フロントプラテン）と
リアプラテン間に可動プラテンが、前記タイバーをガイ
ドとして移動可能に組込まれ、固定プラテンに対し可動
プラテンを平行に移動することで型締めが行なわれる。The mold clamping mechanism of conventional injection molding machines usually has a movable platen installed between a fixed platen (front platen) whose four corners are interconnected by four tie bars and a rear platen so as to be movable using the tie bars as a guide. Mold clamping is performed by moving the movable platen parallel to the platen.
固定プラテンと可動プラテン間が正確に平行でないと可
動プラテンを移動させφ−機構がどのようなものであっ
ても、金型のガイドや固定側金型と可動側金型の摺り合
せ面などに無理な力がかかって金型を損傷したり、ある
いは型開きの際に金型の縁で成形品に傷をつけてしまう
危険がある。この危険は成形の精密度が高くなる程増大
する。If the fixed platen and movable platen are not exactly parallel, the movable platen will move and the φ-mechanism will cause damage to the mold guide or the sliding surface between the fixed mold and the movable mold. There is a risk of damaging the mold due to excessive force, or damaging the molded product with the edge of the mold when opening the mold. This risk increases as the precision of molding increases.
そして、従来、可動プラテンと固定プラテン間の平行度
の調整は、前記複数本のタイバーの長さをリアプラテン
または固定プラテンの側でねじ（タイバーナツト、第２
図）、シム等により両プラテン間を内洞マイクロメータ
で計測しつつ現物合せで調整した後、その状態を固定螺
子で固定するなどして実現していた。しかし、この平行
出しの調整は各プラテンや？ａ数本のタイバーなど型締
機構の基本的な要素そのものを全体的に調整する必要が
あって多大な時間と労力を要するものであり、また、タ
イバーの長さを調整して平行度を確保する方式であるた
め、各タイバー間の伸びが不均一になり、タイバー間で
型締力のアンバランスが生じるという不具合があった。Conventionally, the parallelism between the movable platen and the fixed platen can be adjusted by tightening the lengths of the plurality of tie bars on the side of the rear platen or the fixed platen using screws (tie bar nuts, second
(Fig.), this was achieved by using shims, etc. to measure the distance between the two platens using an internal micrometer, adjusting the actual condition, and then fixing the condition with a fixing screw. However, is it necessary to adjust this parallel alignment for each platen? aIt is necessary to adjust the basic elements of the mold clamping mechanism itself, such as several tie bars, which requires a great deal of time and effort, and the length of the tie bars must be adjusted to ensure parallelism. Because of this, the elongation between each tie bar became uneven, resulting in an unbalanced mold clamping force between the tie bars.
発明が解決しようとする問題点
この発明は、前記直動式の型締機構を備えた、小型で精
密成形用の射出成形機（型締力が５ｔ〜３０を程度）に
おいて、可動プラテンと固定プラテン間の平行度を高精
度にしかも°簡単に調整できる機構を有する型締装置の
提供を：！Ｉ題とする。Problems to be Solved by the Invention The present invention provides a compact injection molding machine for precision molding (with a mold clamping force of approximately 5 tons to 30 tons) equipped with the above-mentioned direct-acting mold clamping mechanism. Providing a mold clamping device with a mechanism that allows for easy adjustment of parallelism between platens with high precision:! This will be the I topic.
実施例
第２図に示すように、射出成形機の型締装置１は射出ノ
ズル２に対向した固定プラテン３とリアプラテン４が４
本の相互に平行なタイバー５で堅固に固定され、その間
に可動プラテン６が四隅に前記のタイバー５を貫通させ
て移動可能に取付けられている。それぞれのタイバー５
は先端（固定プラテン側）にねじ７が刻設され、このね
じ７の固定プラテン３から突出した部分にタイバーナツ
ト８を装着し、さらにこのタイバーナツト５を貫通し固
定プラテン３に達する同定螺子９で当該ナツトを回り止
めすることにより、タイバー５と固定プラテン３を固定
し、タイバー５の後端はそれぞれエンドボルト１０によ
り強力に固定される。Embodiment As shown in FIG. 2, a mold clamping device 1 of an injection molding machine has a fixed platen 3 and a rear platen 4 facing an injection nozzle 2.
The books are firmly fixed by mutually parallel tie bars 5, and movable platens 6 are movably attached to the four corners of the book by penetrating the tie bars 5 between them. each tie bar 5
A screw 7 is carved in the tip (on the fixed platen side), a tie bar nut 8 is attached to the part of this screw 7 that protrudes from the fixed platen 3, and an identification screw 9 that passes through this tie bar nut 5 and reaches the fixed platen 3 is attached to the screw 7. By locking the nuts, the tie bars 5 and the fixed platen 3 are fixed, and the rear ends of the tie bars 5 are each strongly fixed by the end bolts 10.
可動プラテン６のリア側には、リアプラテン４の中央を
貫通して軸架されサーボモータ１１に駆動回転される型
締用螺子機構１２とその先端のプッシャーロッド１３が
配置されており、可動プラテン６はプッシャーロッド１
３に固定される。On the rear side of the movable platen 6, a mold clamping screw mechanism 12 which is mounted on a shaft passing through the center of the rear platen 4 and driven and rotated by a servo motor 11, and a pusher rod 13 at its tip are arranged. is pusher rod 1
It is fixed at 3.
プッシャーロッド１３は第１．３図に示すように、先端
側に７ランジ１４を備え、この例では７ランジ１４の四
隅に雌ねじ孔１５が刻まれ、この孔１５にジヤツキボル
ト（平行度調整ボルト）１６が可動プラテン６に対し進
退調整可能に装着されている。また、該７ランジ１４の
両側には貫通孔１７が形成されておリプラシャ−ロッド
１３と可動プラテン６はこの孔１７を貫通して可動プラ
テン側のにねじ込まれる固定ボルト１８で固定される。As shown in Fig. 1.3, the pusher rod 13 is equipped with seven flange 14 on the tip side, and in this example, female threaded holes 15 are cut in the four corners of the seven flange 14, and a jack bolt (parallelism adjustment bolt) is inserted into this hole 15. 16 is attached to the movable platen 6 so that it can be adjusted forward and backward. Further, through holes 17 are formed on both sides of the seven flange 14, and the re-rusher rod 13 and the movable platen 6 are fixed by fixing bolts 18 that pass through the holes 17 and are screwed into the movable platen side.
なお、貫通孔１７は固定ボルト１８に対し内径が多少大
きいいわゆるバカ孔となっている。これら７ランジ１４
とジヤツキボルト１６および前記の貫通孔１７が平行皮
調ａｍ構１９を構成している。Note that the through hole 17 is a so-called hollow hole whose inner diameter is somewhat larger than that of the fixing bolt 18. these 7 lunges 14
The jack bolt 16 and the through hole 17 constitute a parallel skin type AM structure 19.
型締作動において、サーボモータ１１が駆動されると型
締用螺子機構１２によって可動プラテン６が固定プラテ
ン３に対し接近あるいは離隔して型締め、型開きが行な
われる。この場合に、可動プラテン６と固定プラテン３
ｍが平行でない時は固定ボルト１８を緩め、各ジヤツキ
ボルト１６をそれぞれに進退させて可動プラテン６の傾
斜を調整または矯正することにより両プラテン間の平行
度を１復し、再び前記の固定ボルト１８でプッシャーロ
ッド１３と可動プラテン６を固定する。各ジヤツキボル
ト１６のねじピッチを小さくすれば前記平行度の調整は
高精度に行える。In the mold clamping operation, when the servo motor 11 is driven, the movable platen 6 approaches or separates from the fixed platen 3 by the mold clamping screw mechanism 12 to perform mold clamping and mold opening. In this case, the movable platen 6 and the fixed platen 3
If m are not parallel, loosen the fixing bolt 18, adjust or correct the inclination of the movable platen 6 by moving each jack bolt 16 forward and backward respectively to restore the parallelism between both platens, and then turn the fixing bolt 18 again. to fix the pusher rod 13 and the movable platen 6. By reducing the thread pitch of each jack bolt 16, the parallelism can be adjusted with high precision.
発゛明の効果
可動プラテンと固定プラテン闇の平行度を簡単に調整で
き、また、タイバーの長さを変えないので各タイバー間
で型締力のバラツキが発生することがない。Effects of the invention The parallelism between the movable platen and the fixed platen can be easily adjusted, and since the length of the tie bars is not changed, there is no variation in mold clamping force between the tie bars.
成形作動時に金型のガイドなどに無理な力がかからない
ので金型の寿命が長くなり、また、金型ガイドのガタも
小さくできるので精密な金型を用いた精密成形能力を高
めることができる。Since no unreasonable force is applied to the mold guide during molding operation, the life of the mold is extended, and play in the mold guide can be reduced, so precision molding ability using a precision mold can be improved.
第１図は要部の拡大正面図、第２図は概略的に示した型
締装置の正面図、第３図は第１図におけるＩ−Ｉ線に沿
った断面図である。
１・・・型締装置、２・・・射出ノズル、３・・・固定
プラテン、４・・・リアプラテン、５・・・タイバー、
６・・・可動プラテン、７・・・ねじ、８・・・タイバ
ーナツト、９・・・固定螺子、１０・・・エンドボルト
、１１・・・サーボモータ、１２・・・型締用螺子機構
、１３・・・プッシャーロッド、１４・・・７ランジ、
１５・・・雌ねじ孔、１６・・・ジヤツキボルト、１７
・・・貫通孔、１８・・・固定ボルト、１９・・・平行
度調整機構。FIG. 1 is an enlarged front view of essential parts, FIG. 2 is a schematic front view of the mold clamping device, and FIG. 3 is a cross-sectional view taken along line II in FIG. 1. 1... Mold clamping device, 2... Injection nozzle, 3... Fixed platen, 4... Rear platen, 5... Tie bar,
6... Movable platen, 7... Screw, 8... Tie bar nut, 9... Fixed screw, 10... End bolt, 11... Servo motor, 12... Mold clamping screw mechanism, 13...Pusher rod, 14...7 lunge,
15... Female screw hole, 16... Jacket bolt, 17
...Through hole, 18...Fixing bolt, 19...Parallelism adjustment mechanism.
Claims (1)
プラテンを、可動プラテンの傾斜を調節できるジャッキ
ボルトを介在させて固定してあることを特徴としたプラ
テンの平行度調整機構を備えた型締装置。A mold clamping device equipped with a platen parallelism adjustment mechanism, characterized in that a movable platen is fixed to a pusher rod provided at the tip of a mold clamping screw mechanism with a jack bolt that can adjust the inclination of the movable platen. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12030987A JPS63286316A (en) | 1987-05-19 | 1987-05-19 | Mold clamping device provided with control mechanism for parallelism of platen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12030987A JPS63286316A (en) | 1987-05-19 | 1987-05-19 | Mold clamping device provided with control mechanism for parallelism of platen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63286316A true JPS63286316A (en) | 1988-11-24 |
Family
ID=14783047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12030987A Pending JPS63286316A (en) | 1987-05-19 | 1987-05-19 | Mold clamping device provided with control mechanism for parallelism of platen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63286316A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0454991A2 (en) * | 1990-05-04 | 1991-11-06 | Karl Hehl | Plastic injection moulding unit |
| WO1996005041A1 (en) * | 1994-08-11 | 1996-02-22 | Engel Maschinenbau Gesellschaft Mbh | Injection moulding device for plastics |
| JP2012245744A (en) * | 2011-05-30 | 2012-12-13 | Toshiba Mach Co Ltd | Mold clamping device, molding machine, mold platen, method for controlling mold clamping device and mold platen |
| JP2013000774A (en) * | 2011-06-16 | 2013-01-07 | Japan Steel Works Ltd:The | Clamping device of injection molding machine |
-
1987
- 1987-05-19 JP JP12030987A patent/JPS63286316A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0454991A2 (en) * | 1990-05-04 | 1991-11-06 | Karl Hehl | Plastic injection moulding unit |
| WO1996005041A1 (en) * | 1994-08-11 | 1996-02-22 | Engel Maschinenbau Gesellschaft Mbh | Injection moulding device for plastics |
| US5800843A (en) * | 1994-08-11 | 1998-09-01 | Engel Maschinenbau Gesellschaft M.B.H. | Apparatus for injection molding plastic material |
| JP2012245744A (en) * | 2011-05-30 | 2012-12-13 | Toshiba Mach Co Ltd | Mold clamping device, molding machine, mold platen, method for controlling mold clamping device and mold platen |
| JP2013000774A (en) * | 2011-06-16 | 2013-01-07 | Japan Steel Works Ltd:The | Clamping device of injection molding machine |
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