JPH0324345Y2 - - Google Patents
Info
- Publication number
- JPH0324345Y2 JPH0324345Y2 JP5848986U JP5848986U JPH0324345Y2 JP H0324345 Y2 JPH0324345 Y2 JP H0324345Y2 JP 5848986 U JP5848986 U JP 5848986U JP 5848986 U JP5848986 U JP 5848986U JP H0324345 Y2 JPH0324345 Y2 JP H0324345Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- platen
- fixed
- plate
- 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
- 238000000465 moulding Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は、射出成形機において、型締め時の強
大な締め付け力および射出時の金型内での樹脂充
てん圧力により、金型、固定盤および可動盤が変
形しても、金型の取り付け板の平面度を精度良く
維持して金型間の成形品形成部を正確に保持する
ことができる型締め装置に関するものである。[Detailed description of the invention] "Industrial application field" This invention is used in injection molding machines to reduce the mold and fixed platen by using the strong clamping force during mold clamping and the resin filling pressure inside the mold during injection. The present invention also relates to a mold clamping device that can accurately maintain the flatness of a mounting plate of a mold and accurately hold a molded product forming portion between molds even if a movable platen is deformed.
「従来の技術」
プラスチツク、ゴム、セラミツクスなどの射出
成形機の型締め装置は、高圧で射出充てんされる
金型を強固に締め付けておくという重要な役割を
持つている。``Prior Art'' The mold clamping device of an injection molding machine for plastics, rubber, ceramics, etc. has an important role of firmly clamping the mold that is injected and filled with high pressure.
そして型締め装置には、高精度に加工された金
型を正しく保持するために、その固定盤と可動盤
との平行度は勿論のこと、各型取り付け面を有す
る金型の取り付け板の平面度も厳密に製作するこ
とが要求される。 In order to correctly hold a mold that has been machined with high precision, the mold clamping device requires not only the parallelism of the fixed plate and movable plate, but also the flatness of the mold mounting plate that has each mold mounting surface. It is required to be manufactured with great precision.
これを従来装置を示す第３図について説明する
と、金型６を取り付ける固定盤１の中央には、射
出装置（図示していない）を挿入するすり鉢状の
孔９が設けられている。 This will be explained with reference to FIG. 3, which shows a conventional device.A fixed platen 1 to which a mold 6 is attached is provided with a mortar-shaped hole 9 in the center thereof into which an injection device (not shown) is inserted.
また金型７を取り付ける可動盤５には、突出し
装置１１を設けるため、溝孔１３を設けている。 Further, the movable platen 5 to which the mold 7 is attached is provided with a slot 13 in order to provide an ejection device 11 therein.
したがつて、型締めシリンダ２を作動し、型締
めピストン４で両金型６，７を大きな型締め力で
締め付けると、固定盤１および可動盤５に微妙な
変形が生じる。 Therefore, when the mold clamping cylinder 2 is operated and the mold clamping piston 4 clamps both molds 6 and 7 with a large mold clamping force, the fixed platen 1 and the movable platen 5 are slightly deformed.
固定盤１のすり鉢状の孔９とか可動盤５の溝孔
１３は、応力面から考えても、厳しい状態の箇所
である盤中央部にあるので、同盤１，５はより変
形し易い状態である。 The mortar-shaped hole 9 of the fixed platen 1 and the groove hole 13 of the movable platen 5 are located in the center of the plate, which is a place under severe stress from a stress standpoint, so the plates 1 and 5 are more easily deformed. It is.
このような変形を防止するため、従来は、固定
盤１、可動盤５の厚みを大きくし、極力変形を押
えるとともに、若干の変形が、金型の成形品形成
部８に影響を及ぼさないように金型６，７そのも
のをも強固なものにすることで、これに対処して
いた。 In order to prevent such deformation, conventionally, the thickness of the fixed platen 1 and the movable platen 5 is increased to suppress deformation as much as possible, and to prevent slight deformation from affecting the molded product forming part 8 of the mold. This was dealt with by making the molds 6 and 7 themselves stronger.
しかし、これらの対策は、何れも、型締め装置
全体を強固にすることが必要であり、装置全体の
重量増加となり、価格的にも、エネルギー消費面
からも好ましい結果を得ることは難しかつた。 However, all of these measures require that the entire mold clamping device be made stronger, which increases the weight of the entire device, making it difficult to obtain favorable results in terms of cost and energy consumption. .
このような従来装置の欠点を解消すべく、本出
願人はさきに実願昭58−86156号（実開昭59−
192321号公報）を出願した。これは第４図ないし
第８図に示されているものであつて、第４図およ
び第５図には、固定盤１の型取り付け側１′に、
すり鉢状の孔９を中心として中央部を高さ△ｌだ
け高くし型取り付け側１′の外周に向かつて緩や
かに傾斜した凸面１４を形成したものが示されて
いる。 In order to eliminate such drawbacks of the conventional device, the present applicant previously filed Utility Application No. 58-86156 (Utility Model Application No. 58-86156).
No. 192321) was filed. This is shown in FIGS. 4 to 8, and in FIGS. 4 and 5, on the mold attachment side 1' of the stationary platen 1,
A convex surface 14 is shown in which the central portion is raised by a height Δl with the mortar-shaped hole 9 as the center, and a convex surface 14 is gently sloped toward the outer periphery of the mold attachment side 1'.
また、第７図および第８図において、１２はス
ペーサーで、その表面に凸面１４を形成し、この
スペーサー１２は固定盤１に、各種高さ△ｌのも
のを取換え可能に取り付ける。このことは、可動
盤５においても同様であつて、第６図において凸
面１４′の高さは△l′で示されている。 Further, in FIGS. 7 and 8, numeral 12 denotes a spacer having a convex surface 14 formed on its surface, and this spacer 12 is attached to the stationary platen 1 so as to be replaceable in various heights Δl. This also applies to the movable platen 5, and the height of the convex surface 14' is indicated by Δl' in FIG.
第８図ロのスペーサー１２は、同図イのスペー
サー１２の凸面１４の高さ△l1と異なつた高さ△
l2を有するものであつて、このように異なつた高
さ△l1，△l2を有するスペーサー１２を数種類準
備しておいて、使用金型に応じ最適の高さ△ｌを
選定して使用するようにしたものである。 The spacer 12 shown in FIG.
Prepare several kinds of spacers 12 having different heights △l 1 and △l 2 , and select the optimum height △l according to the mold used. It is designed to be used.
すなわち、型締め時および射出時に生じる金型
６，７、固定盤１および可動盤５の変形量をあら
かじめ見越して両盤の型取り付け側１′，５′に、
前似つて凸面１４，１４′を形成したものである。 That is, in anticipation of the amount of deformation of the molds 6, 7, fixed platen 1, and movable platen 5 that will occur during mold clamping and injection, the mold mounting sides 1', 5' of both plates are
Convex surfaces 14, 14' are formed in the front.
「考案が解決しようとする問題点」
前記せる従来技術では、成形品の精密成形上、
その効果は確かにあるが、その高さ△ｌ，△
l′は、実際には0.05mm〜0.1mmという非常に微小な
高さであつて、可動盤５や固定盤１の型取り付け
側５′，１′に、△l′，△ｌの微小な高さの傾斜を
付けて加工することは非常に困難であり、また高
価となる。さらに、これでは数多くの金型に対応
させることは、とても不可能である。"Problems that the invention attempts to solve" The above-mentioned conventional technology has problems in precision molding of molded products.
The effect is certainly there, but its height △l, △
l' is actually a very small height of 0.05 mm to 0.1 mm, and there are minute heights of △l' and △l on the mold mounting sides 5' and 1' of the movable platen 5 and fixed platen 1. Machining with a slope in height is very difficult and expensive. Furthermore, it is extremely impossible to adapt this method to a large number of molds.
またスペーサー１２の場合も同様であつて、し
かも金型を取り付けて成形を行い、成形品の寸法
形状などを測定して、その良否によつて、再度、
別のスペーサー１２に交換して成形テストを行
う、というような煩雑な手数が必要となる。 The same is true for the spacer 12, in which a mold is attached and molded, the dimensions and shape of the molded product are measured, and depending on the quality, the
A complicated process such as replacing the spacer 12 with another one and performing a molding test is required.
「問題点を解決するための手段」
本考案は、前記せるような従来技術の欠点を解
消するために、
固定盤と金型、可動盤と金型の間に一体に固定
された金型の取り付け板と、前記固定盤あるいは
前記可動盤に複数個の押棒を設け、前記押棒はそ
の先端を前記固定盤あるいは前記可動盤の型取り
付け側より突出させて前記金型の取り付け板を介
して前記金型を押圧し、それによつて、あらかじ
め前記金型の変形を見越した予変形量を与えるよ
うにしたものである。"Means for Solving the Problems" In order to eliminate the drawbacks of the prior art as mentioned above, the present invention provides a method for using a mold that is integrally fixed between a fixed platen and a mold, and a movable platen and a mold. A plurality of push rods are provided on the mounting plate and the fixed plate or the movable plate, and the push rods have their tips protruding from the mold mounting side of the fixed plate or the movable plate to push the mold through the mold mounting plate. The mold is pressed, thereby giving a pre-deformation amount that anticipates the deformation of the mold in advance.
「作用」
固定盤および可動盤に、金型を取り付けた後、
射出成形を行う。そして成形品の寸法、形状を測
定し、その変形量に応じて押棒を固定盤あるいは
可動盤の型取り付け側より突出せしめて金型の取
り付け板を介して金型を押圧し、金型に、あらか
じめ、その変形を見越した予変形量を与える。"Operation" After installing the mold on the fixed platen and movable platen,
Perform injection molding. Then, the dimensions and shape of the molded product are measured, and depending on the amount of deformation, a push rod is made to protrude from the mold attachment side of the fixed plate or movable plate and presses the mold through the mold attachment plate. A predeformation amount is given in advance in anticipation of the deformation.
その上で再度射出成形を行う。 Then injection molding is performed again.
この操作は金型を各盤に取り付けたままで行う
ものである。 This operation is performed with the molds attached to each panel.
「実施例」
本考案の１実施例を示す第１図および第２図に
ついて、これを説明する。``Example'' This will be explained with reference to FIGS. 1 and 2 showing one example of the present invention.
固定盤１と金型６、可動盤５と金型７の間に一
体に固定された金型の取り付け板６′，７′が配置
されている。 Mold mounting plates 6' and 7', which are integrally fixed, are arranged between the fixed platen 1 and the mold 6, and between the movable platen 5 and the mold 7.
固定盤１の孔９には、射出装置２０が挿入され
るが、この孔９の周辺に複数個の透孔２６を設け
る。３はタイバーを示す。 The injection device 20 is inserted into the hole 9 of the fixed platen 1, and a plurality of through holes 26 are provided around the hole 9. 3 indicates a tie bar.
固定盤１にあけられた透孔２６の型取り付け側
１′側には、ねじ部２５を切つておく。透孔２６
に押棒２３を挿入し、その先端部分を透孔２６の
ねじ部２５にねじ込み、その先端を固定盤１の型
取り付け側１′より△だけ突出させ、これで固
定側の金型の取り付け板６′の背面を押圧し、金
型６の成形品形成部８の正規の寸法L1を、寸法
L2まで、ほぼ△ｌだけ予変形量を与えておく。
この場合△ｌ≒L1−L2である。 A threaded portion 25 is cut on the mold attachment side 1' of the through hole 26 drilled in the stationary platen 1. Through hole 26
Insert the push rod 23 into the hole 26, screw its tip into the threaded part 25 of the through hole 26, make the tip protrude by an amount △ from the mold mounting side 1' of the fixed plate 1, and now the mold mounting plate 6 on the fixed side ’ and measure the regular dimension L 1 of the molded product forming part 8 of the mold 6.
A predeformation amount of approximately △l is given up to L 2 .
In this case, Δl≈L 1 −L 2 .
押棒３０の後端は、ナツト２４で固定盤１に固
定する。 The rear end of the push rod 30 is fixed to the fixed platen 1 with a nut 24.
第１図はこの状態で型締め動作を行つた状態で
ある。 FIG. 1 shows a state in which the mold clamping operation is performed in this state.
次に射出成形を行う。すなわち射出装置２０か
ら樹脂２２を成形品形成部８に射出すると、金型
６は樹脂２２の圧力で、ほぼ△ｌだけ金型の取り
付け板６′と共に固定盤１側へたわみ、固定盤１
は、ほぼ△ｌだけ射出装置２０の設置側へたわ
む。 Next, injection molding is performed. That is, when the resin 22 is injected from the injection device 20 into the molded product forming section 8, the mold 6 is bent toward the fixed platen 1 by approximately △l together with the mold mounting plate 6' due to the pressure of the resin 22, and the fixed platen 1
is deflected by approximately Δl toward the installation side of the injection device 20.
この状態が第２図で示されている。 This situation is shown in FIG.
前記のたわみ量△ｌを予変形量として金型６に
あらかじめ与えておけば、射出時金型６はほぼ△
ｌだけ変形するで成形品形成部８を正規の寸法
L1に保持することになる。 If the above deflection amount △l is given to the mold 6 in advance as a pre-deformation amount, the mold 6 will be approximately △ at the time of injection.
The molded part forming part 8 is transformed to the regular size by deforming by l.
It will be held at L 1 .
かくして、冷却後、型開動作を行い成形品を金
型６より取り出す。 After cooling, a mold opening operation is performed to take out the molded product from the mold 6.
これらのことは可動盤７に対しても応用するこ
とができることである。なお図面において７′は
金型の取り付け板を示す。 These things can also be applied to the movable platen 7. In the drawings, 7' indicates a mold mounting plate.
「考案の効果」
本考案においては、金型を、型締め装置から取
り外すことなく、金型の予変形量を、押棒の操作
で、適宜変更することができるので、成形作業を
続行しながらでも、その調整をすることが可能と
なる。``Effect of the invention'' In this invention, the amount of predeformation of the mold can be changed appropriately by operating the push rod without removing the mold from the mold clamping device, so even while continuing the molding operation. , it becomes possible to make the adjustment.
さらに、成形品が非対称の形状である場合や、
多数個取りの場合でも、寸法調整を必要とする部
分のみを、押棒の操作で調整できるので、数多く
の金型に対応が可能となる。 Furthermore, if the molded product has an asymmetrical shape,
Even in the case of multi-cavity molding, only the parts that require dimensional adjustment can be adjusted by operating the push rod, making it possible to accommodate a large number of molds.
したがつて、従来のように、いたずらに、固定
盤あるいは可動盤を厚くして剛性を増大させるよ
うな必要が全くなくなつて、簡単な操作で、高精
度の成形品を得ることが可能となる。 Therefore, there is no need to unnecessarily thicken the fixed or movable plate to increase rigidity, as was the case in the past, and it is now possible to obtain high-precision molded products with simple operations. Become.
第１図は本装置の縦断側面図、第２図は樹脂を
射出した状態を示す縦断側面図、第３図は従来装
置の縦断側面図、第４図は他の従来装置の固定盤
の側面図、第５図はその縦断側面図、第６図は可
動盤の縦断側面図、第７図は、さらに他の従来装
置の固定盤の縦断側面図、第８図はさらに他の従
来装置の固定盤を示すものであつて同図イはその
縦断側面図、同図ロはそのスペーサーの縦断側面
図、同図ハはスペーサーの側面図である。
１……固定盤、１′……型取り付け側、５……
可動盤、６，７……金型、６′，７′……金型の取
り付け板、２３……押棒。
Fig. 1 is a vertical side view of this device, Fig. 2 is a longitudinal side view showing the resin injected state, Fig. 3 is a longitudinal side view of the conventional device, and Fig. 4 is a side view of the fixed plate of another conventional device. Figure 5 is a vertical side view of the same, Figure 6 is a vertical side view of the movable platen, Figure 7 is a vertical side view of the fixed platen of still another conventional device, and Figure 8 is a vertical side view of the fixed platen of still another conventional device. Fig. 3A shows a fixed platen, and Fig. 5A is a longitudinal sectional side view thereof, fig. RO is a longitudinal sectional side view of its spacer, and fig. C is a side view of the spacer. 1... Fixed plate, 1'... Mold installation side, 5...
Movable plate, 6, 7...mold, 6', 7'...mold mounting plate, 23...push bar.
Claims (1)
された金型の取り付け板と、前記固定盤あるいは
前記可動盤に複数個の押棒を設け、前記押棒はそ
の先端を前記固定盤あるいは前記可盤の型取り付
け側より突出させて前記金型の取り付け板を介し
て前記金型を押圧し、それによつて、あらかじめ
前記金型の変形を見越した予変形量を与えるよう
にした射出成形機の型締め装置。 A mold mounting plate is integrally fixed between the fixed plate and the mold, and the movable plate and the mold, and a plurality of push rods are provided on the fixed plate or the movable plate, and the push rod has its tip connected to the fixed plate. Alternatively, the mold is pressed through a mounting plate of the mold by protruding from the mold mounting side of the platen, thereby giving a predeformation amount in anticipation of deformation of the mold in advance. Mold clamping device for molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5848986U JPH0324345Y2 (en) | 1986-04-18 | 1986-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5848986U JPH0324345Y2 (en) | 1986-04-18 | 1986-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62170212U JPS62170212U (en) | 1987-10-28 |
| JPH0324345Y2 true JPH0324345Y2 (en) | 1991-05-28 |
Family
ID=30889109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5848986U Expired JPH0324345Y2 (en) | 1986-04-18 | 1986-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324345Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001212829A (en) * | 2000-02-04 | 2001-08-07 | Nok Corp | Mold clamping device |
| JP2013000774A (en) * | 2011-06-16 | 2013-01-07 | Japan Steel Works Ltd:The | Clamping device of injection molding machine |
| JP6785897B2 (en) * | 2019-01-28 | 2020-11-18 | Ｔｏｗａ株式会社 | Resin molding equipment and manufacturing method of resin molded products |
-
1986
- 1986-04-18 JP JP5848986U patent/JPH0324345Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62170212U (en) | 1987-10-28 |
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