JPS58211424A - Injection-compression molding machine - Google Patents
Injection-compression molding machineInfo
- Publication number
- JPS58211424A JPS58211424A JP9437282A JP9437282A JPS58211424A JP S58211424 A JPS58211424 A JP S58211424A JP 9437282 A JP9437282 A JP 9437282A JP 9437282 A JP9437282 A JP 9437282A JP S58211424 A JPS58211424 A JP S58211424A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- mold mounting
- molding machine
- fixed
- compression molding
- 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
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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
- B29C2045/564—Compression drive means acting independently from the mould closing and clamping means
Abstract
Description
【発明の詳細な説明】
本発明は、プラスチックレンズなどを成形する射出圧縮
成形機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an injection compression molding machine for molding plastic lenses and the like.
プラスチックレンズなどを成形するに際し、射出圧縮成
形機が柑いら扛ている。この射出圧縮成形機は、周知の
ように、溶融したプラスチック材料を成形室内へ急速に
射出し、固化させてプラスチックレンズなどを成形する
ものである。このような成形法において、グラスチック
材料を成形室内へ射出し、そのまま固化させる方法もあ
るが、−万、射出層の成形室内をさらに加圧して被成形
体の配向ｔＶより軽減するようにした圧縮成形法にＩろ
ものも行なわれている。Injection compression molding machines are used to mold plastic lenses and other products. As is well known, this injection compression molding machine rapidly injects molten plastic material into a molding chamber and solidifies it to mold a plastic lens or the like. In such a molding method, there is a method in which the glass material is injected into the molding chamber and solidified as it is; A compression molding method is also used.
この方法によるものでは、レンズ等の光学部品を高精度
に成形するのに好適であるけ扛ども、金型自体に変形を
生じてしまうと、本来、高精度に成形さするべき成形体
の精度は劣化する。既存の成形機では、金型の変形を起
こす要素が残さ扛たまま、上述の圧縮成形法を導入して
いるため、その要素を排除する対策を講じる必要があっ
た。Although this method is suitable for molding optical parts such as lenses with high precision, if the mold itself is deformed, the precision of the molded object, which should be molded with high precision, may be reduced. deteriorates. In existing molding machines, the above-mentioned compression molding method is introduced with elements that cause mold deformation remaining, so it was necessary to take measures to eliminate these elements.
この種の成形機では、可動側の型取付盤に移動・金型を
、固定側の型取付盤に固定金型をそ扛ぞｎ取付け、金型
の型締めを行なったあと、晟形室内への射出を、かつ、
圧縮成形をそれぞれ２段階で行なうようになってい℃、
型締め圧や圧縮成形圧によジ、固定側の型取付盤の、最
も大きな荷重を問題があった。In this type of molding machine, the mold is moved to the mold mounting board on the movable side, the fixed mold is removed and mounted on the mold mounting board on the stationary side, and after the mold is clamped, the mold is placed in the molding chamber. injection into, and
Compression molding is carried out in two stages.
Due to mold clamping pressure and compression molding pressure, there was a problem with the largest load on the mold mounting plate on the fixed side.
本発明の目的は、型取付盤の変形を防止して、被成形体
を高精度に成形し得るようにした射出圧縮成形機を提供
することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an injection compression molding machine that can mold a molded object with high precision by preventing deformation of a mold mounting plate.
以下、図示の実施例により本発明を説明する。The present invention will be explained below with reference to illustrated embodiments.
第１区は１本発明−実施例の射出圧縮成形機（以下成形
機とぎり）を示してびり、この実施例の成形機１は、移
動側型取付盤２と、これと対向する同定側型取付盤３と
、この固定側型取付盤２に収付けらｎる移動金型５と、
移動側型取付盤３に取付けら扛る固定金型６と、この固
定金型６内に摺動自在に設けら扛ろ圧縮駒７と、固定側
型取付盤３に内股さｎ油圧シリンダ８内の圧油１０によ
る油圧力によって駆動さ扛る油圧ピストン９と、固定側
型取付盤３に対向する成形機の基盤４と、支受部材１２
とから主に構成さ扛ている。The first section shows an injection compression molding machine (hereinafter referred to as a molding machine) according to an embodiment of the present invention. A mold mounting board 3, a movable mold 5 housed in the fixed mold mounting board 2,
A fixed mold 6 mounted on the movable mold mounting board 3, a sliding compression piece 7 slidably provided in the fixed mold 6, and a hydraulic cylinder 8 installed inside the fixed mold mounting board 3. A hydraulic piston 9 driven by the hydraulic pressure of pressure oil 10 inside, a base 4 of the molding machine facing the fixed side mold mounting plate 3, and a support member 12
It is mainly composed of 扛.
移動側型取付盤２の中央部に位置する型締ピストン１３
は、油圧力によって駆動せしめらｎるようになっていて
、移動側型取付盤２を図の位置に下降せしめ、この状態
で所謂、型締めが行なわれるＩうになっている。そして
、一対の、移動金型５と固定金型６とで形成さ扛る成形
室１４内には、射出シリンダ１５にＪｌ）溶融したプラ
スチック材料が射出せしめら扛、このあと、油圧ピスト
ン９が油圧力により僅かに上昇し、こ；ｎｕ：ｊジ、圧
縮駒７が動かさ扛て成形室１４内に微少量、進入し、成
形室内において圧縮成形が行なわｎろ。成形法において
、このような圧縮成形が付加さｎると、被成形体の配向
１を、Ｊニジ軽減することができる。Mold clamping piston 13 located in the center of the moving side mold mounting board 2
is driven by hydraulic pressure, and lowers the movable mold mounting plate 2 to the position shown in the figure, and in this state, so-called mold clamping is performed. Then, a molten plastic material is injected into an injection cylinder 15 into a molding chamber 14 formed by a pair of movable molds 5 and a fixed mold 6, and then a hydraulic piston 9 is inserted into the molding chamber 14. It rises slightly due to the hydraulic pressure, and the compression piece 7 is moved and enters the molding chamber 14 by a small amount, and compression molding is performed within the molding chamber. When such compression molding is added to the molding method, the orientation of the object to be molded can be reduced by a factor of J.
なお、このような圧顛駒７による圧縮成形法？マイクロ
モルダ法と呼んでいる。By the way, is there a compression molding method using such a compression molding piece 7? It is called the Micromolda method.
ここで、この射出圧縮成形機の特徴とするところは、型
締め圧や成形室での圧縮成形圧による固定側型取付盤３
のたわみ変形が防止さｎる点にある。即ち、型締ピスト
ン１３による型締め圧や、上記圧縮成形圧により、固定
側型取付盤３の中央部は最も大きな荷重を受けることに
なジ、第２図に示すように、取付盤３には、たねみδを
生じることになる。３すると、金型の位置精度が狂った
り、あるいは、金型が変形したジし、こθつ結果、成形
精度は著しく低下する。Here, the feature of this injection compression molding machine is that the fixed side mold mounting plate 3 uses mold clamping pressure and compression molding pressure in the molding chamber.
This is to the point where deflection deformation of the material is prevented. That is, due to the mold clamping pressure by the mold clamping piston 13 and the above-mentioned compression molding pressure, the central part of the stationary mold mounting plate 3 receives the largest load, and as shown in FIG. will result in a slack δ. 3. If this happens, the positional accuracy of the mold will be disrupted or the mold will be deformed, resulting in a significant drop in molding accuracy.
本発明実施例の成形機では、第１図に示す如く、油圧シ
リンダ８と成形機の基盤４との間に支受部材１２が介設
してあり、この支受部材１２により。In the molding machine according to the embodiment of the present invention, as shown in FIG. 1, a support member 12 is interposed between the hydraulic cylinder 8 and the base 4 of the molding machine.
シリンダ８を介して固定側型取付盤３が支えら扛るＩ９
になっていて、この構成により、固定側型取付盤３のた
わみ変形は防止さ扛る。なか、油圧シリンダ８を小径の
ものとし、この７リンダを中においた円筒状の支受部材
を、固定側型取付盤３と基盤４との間に介設し、油圧シ
リンダ８を介することなく、直接、固定側型取付盤３を
、基盤４との間で支持するようにしてもよい。I9 supported by the fixed side mold mounting board 3 via the cylinder 8
This configuration prevents the stationary side mold mounting board 3 from being bent or deformed. Among them, the hydraulic cylinder 8 is made of a small diameter, and a cylindrical support member with these seven cylinders placed inside is interposed between the fixed side mold mounting plate 3 and the base 4, and the hydraulic cylinder 8 is not used. , the fixed side type mounting board 3 may be directly supported between it and the base 4.
な２．この実施例の成形機にあたっては、型締めが、型
締ピストン１３により行なわ′ｎるようになっておジ、
移動側型取付盤２の中央部が型締ピストン１３により、
押さえらｎる構成となっているため、移動側型取付盤２
のたわみをも防止することができる。こｎに対し、移動
側型取付盤２を例えばトグル機構等により駆動するよう
に構成すると、移動側型取付盤２が変形するおそ牡があ
る。2. In the molding machine of this embodiment, mold clamping is performed by a mold clamping piston 13.
The center part of the movable mold mounting board 2 is moved by the mold clamping piston 13.
Since it is configured to be held down, the movable side mold mounting board 2
It can also prevent deflection. On the other hand, if the movable mold mounting board 2 is constructed to be driven by, for example, a toggle mechanism, the movable mold mounting board 2 is likely to be deformed.
また、この成形機は、射出シリンダ１５を横方向に配設
し、移動金ｍ５と固定金型６との間からプラスチック材
料？射出するようにしたものであり。In addition, this molding machine has an injection cylinder 15 disposed laterally, and injects plastic material between the movable mold m5 and the fixed mold 6. It is designed to eject.
このため、次に述べろ理由で、固定側型取付盤３に、射
出シリンダ１５を挿設する。ための比較的大きな穴を穿
つ必要がなく、固定側型取付盤３の変形量を最少限に留
めることができる。For this reason, the injection cylinder 15 is inserted into the stationary side mold mounting board 3 for reasons that will be described next. There is no need to drill a relatively large hole for this purpose, and the amount of deformation of the fixed side mold mounting board 3 can be kept to a minimum.
斯る射出シリンダを固定ＩＩ￥ｊｌ型収付盤３と固定金
型６とに、またがって縦方向に挿設する成形機では、固
定側型取付盤３にはその挿設のための比較的大＠な穴が
穿た扛ることになり、こｎに伴ない固定側型取付盤３の
たわみ変形量はより大きくなる。In a molding machine in which such an injection cylinder is inserted vertically across the fixed II\Jl type storage board 3 and the fixed mold 6, the fixed side mold mounting board 3 has a relatively large space for insertion. A large hole will be drilled, and the amount of deflection deformation of the fixed side mold mounting board 3 will increase accordingly.
翻って、第１図に示す固定側型取付盤３においては、比
較的小径の油圧ピストン９用の穴が穿た扛るのみであり
、取付盤３のたわみ量をより小さくすることができる。On the other hand, in the fixed-side type mounting plate 3 shown in FIG. 1, only a hole for a relatively small-diameter hydraulic piston 9 is bored, and the amount of deflection of the mounting plate 3 can be made smaller.
そして、このたわみも、支受部材１２によって防止さｎ
るのである。さらに、この成形機では、射出シリンダ装
５ケ横配置にし、圧縮駒７等の圧縮成形系を、移動金型
５ではなく固定金型６Ｉｌｌ１１に設けるようにして夢
ｌ佼ｔあるので、型締ピストン１３を図の位置に設ける
ことが可能となっている。従って、移動側型取付盤２の
変形をも防止できるのである。こ０）場合、圧縮成形系
を移動金型５側へ設けるものとすれば、型締ピストン１
３による移動側型取付盤２の、駆動は困難となる。This deflection is also prevented by the support member 12.
It is. Furthermore, in this molding machine, five injection cylinder units are arranged horizontally, and the compression molding system such as the compression piece 7 is installed in the fixed mold 6Ill11 instead of the movable mold 5, so that mold clamping is possible. It is possible to provide the piston 13 at the position shown in the figure. Therefore, deformation of the movable mold mounting board 2 can also be prevented. In this case, if the compression molding system is installed on the movable mold 5 side, the mold clamping piston 1
3 makes it difficult to drive the movable mold mounting board 2.
以上本発明によｎは、固定側型取付盤の変形が防止さ扛
るので、金型の取付梢度の低下や金型の変形が防止さ扛
、より高精度な成形体を得ることができる。As described above, according to the present invention, deformation of the fixed side mold mounting plate is prevented, so a reduction in the mounting degree of the mold and deformation of the mold are prevented, thereby making it possible to obtain a molded product with higher precision. can.
第１図は本発明一実施例の射出圧縮成形機の構成図、第
２図は従来説明で用いた射出圧縮成形機の概略構成図で
ある。
２・・・移動側型取付盤、 ３・・・固定側型取付
盤、 ４・・・基盤、 ５・・・移動金型。
６・・・固定金型、 ７・・・圧縮駒、９・・・油
圧ピストン、 １２・°゛支受部材、１４・・・成
形室FIG. 1 is a block diagram of an injection compression molding machine according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of the injection compression molding machine used in the conventional explanation. 2... Movable side mold mounting board, 3... Fixed side mold mounting board, 4... Base, 5... Movable mold. 6... Fixed mold, 7... Compression piece, 9... Hydraulic piston, 12... Supporting member, 14... Molding chamber
Claims (1)
移動側および固定側型取付盤の各々に取付けら扛、成形
室を形成するための一対の、移動金型訃よび固定金型と
、固定金型内に摺動自在に設けられる圧縮駒と、固定側
型取付盤に内股さ扛て油圧力によジ駆動さ扛圧縮駒を押
圧して成形室内の被成形体を圧縮成形するための油圧ピ
ストンと、固定側型取付盤に対向する成形機の基盤と、
金型の型締め圧ならびに圧縮駒の圧縮成形圧による。固
定側型取付盤の変形を防止するように基盤との間で固定
側型取付盤を支える支受部材とを具備することを特徴と
する射出圧縮成形機。A movable side mold mounting board, a fixed side mold mounting board facing the comb,
A pair of movable mold ends and a fixed mold attached to each of the movable side and fixed side mold mounting plates to form a molding chamber, and a compression piece slidably provided in the fixed mold; A hydraulic piston that is placed inside the fixed side mold mounting plate and is driven by hydraulic pressure to compress and mold the object to be molded in the molding chamber by pressing a compression piece, and a molding machine that faces the fixed side mold mounting plate. The foundation of
Depends on the clamping pressure of the mold and the compression molding pressure of the compression piece. An injection compression molding machine characterized by comprising a support member that supports the fixed side mold mounting plate between the base and the fixed side mold mounting plate so as to prevent deformation of the fixed side mold mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9437282A JPS58211424A (en) | 1982-06-02 | 1982-06-02 | Injection-compression molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9437282A JPS58211424A (en) | 1982-06-02 | 1982-06-02 | Injection-compression molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58211424A true JPS58211424A (en) | 1983-12-08 |
Family
ID=14108479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9437282A Pending JPS58211424A (en) | 1982-06-02 | 1982-06-02 | Injection-compression molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58211424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6189015A (en) * | 1984-10-05 | 1986-05-07 | Sumitomo Rubber Ind Ltd | Method of molding and vulcanizing |
| NL1021421C2 (en) * | 2002-09-10 | 2004-03-11 | Fountain Patents B V | Device and method for manufacturing products from a warm plastic mass. |
-
1982
- 1982-06-02 JP JP9437282A patent/JPS58211424A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6189015A (en) * | 1984-10-05 | 1986-05-07 | Sumitomo Rubber Ind Ltd | Method of molding and vulcanizing |
| JPH0473367B2 (en) * | 1984-10-05 | 1992-11-20 | Sumitomo Rubber Ind | |
| NL1021421C2 (en) * | 2002-09-10 | 2004-03-11 | Fountain Patents B V | Device and method for manufacturing products from a warm plastic mass. |
| WO2004024416A1 (en) * | 2002-09-10 | 2004-03-25 | Fountain Patents B.V. | Apparatus and method for manufacturing products from a thermoplastic mass |
| EP2033761A1 (en) * | 2002-09-10 | 2009-03-11 | ECIM Technologies B.V. | Apparatus and method for manufacturing products from a thermoplastic mass |
| US7891970B2 (en) | 2002-09-10 | 2011-02-22 | Ecim Technologies B.V. | Apparatus and method for manufacturing products from a thermoplastic mass |
| US8360769B2 (en) | 2002-09-10 | 2013-01-29 | Ecim Technologies B.V. | Apparatus for manufacturing products from a thermoplastic mass |
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