JPH05286002A - Injection molding machine - Google Patents

Injection molding machine

Info

Publication number
JPH05286002A
JPH05286002A JP8734592A JP8734592A JPH05286002A JP H05286002 A JPH05286002 A JP H05286002A JP 8734592 A JP8734592 A JP 8734592A JP 8734592 A JP8734592 A JP 8734592A JP H05286002 A JPH05286002 A JP H05286002A
Authority
JP
Japan
Prior art keywords
mold
molding machine
tie bars
mold clamping
clamping cylinder
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
Application number
JP8734592A
Other languages
Japanese (ja)
Other versions
JPH0764000B2 (en
Inventor
Hisashi Kojima
久司 小嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TEKUNOPURASU KK
Technoplas Inc
Original Assignee
TEKUNOPURASU KK
Technoplas Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TEKUNOPURASU KK, Technoplas Inc filed Critical TEKUNOPURASU KK
Priority to JP4087345A priority Critical patent/JPH0764000B2/en
Publication of JPH05286002A publication Critical patent/JPH05286002A/en
Publication of JPH0764000B2 publication Critical patent/JPH0764000B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To simplify and make compact the construction and make the size of a molding machine smaller. CONSTITUTION:A body 6 of a molding machine is mounted on a bed 4 of a disk molding machine 2 and there are provided on the body 6 a mold 8, two parallel tie bars 12, 12 attached to a supporting bracket 10 with its one end fixed onto the bed 4, an injection unit 14 horizontally supported between the tie bars 12, 12, and mold clamping cylinders 16, 16, one end of each cylinder 16 being connected to the tie bar 12 and the other end thereof being supported by the mold 8. The mold 8 is fixed onto the bed 4 and comprised of a fixed side mold plate 18 holding the cylinders 16, 16 and a movable side mold plate 20 supported by rods 16a, 16a, as extended members of the tie bars 12, 12, of the cylinders 16, 16.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、金型内に溶融樹脂を
充填して成形を行う射出成形機に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection molding machine for filling a mold with molten resin for molding.

【0002】[0002]

【従来の技術】従来、射出成形機では、例えば金型の固
定側型板と可動側型板とがそれぞれ4本のタイバーで支
持された固定ダイプレートと移動ダイプレートに取り付
けられ、型締シリンダで移動ダイプレートを移動させて
型締めを行うとともに、型締シリンダに対向して固定ダ
イプレート側に設けられた射出ユニットで金型内へ溶融
樹脂を充填する構成となっている。また、金型はガイド
ピンによって型合わせ精度を得るようになっている。
2. Description of the Related Art Conventionally, in an injection molding machine, for example, a fixed mold plate and a movable mold plate of a mold are attached to a fixed die plate and a movable die plate supported by four tie bars, respectively, and a mold clamping cylinder is mounted. The movable die plate is moved to perform mold clamping, and the mold is filled with molten resin by an injection unit provided on the fixed die plate side facing the mold clamping cylinder. In addition, the mold is designed to obtain a mold matching accuracy by the guide pin.

【0003】[0003]

【発明が解決しようとする課題】ところで、この種の射
出成形機では、成形精度を損なわない範囲でできる限り
構成上の簡易化ないしコンパクト化を望む声が強いが、
上述のような従来構成によれば、型締シリンダと射出ユ
ニットが金型を挟んで対向する構成であるためにそれぞ
れの設置スペースが直列的に存在し、このため全長の短
縮には限界があった。
By the way, in this type of injection molding machine, there is a strong demand for simplification or compactness of the structure as far as possible without impairing the molding accuracy.
According to the conventional configuration as described above, since the mold clamping cylinder and the injection unit are opposed to each other with the mold sandwiched therebetween, the installation spaces for each are present in series, and therefore there is a limit to the reduction of the total length. It was

【0004】また、型締シリンダ側と射出ユニット側が
一体性を有しない分離構造であるとともに、4本のタイ
バーを有するために全体的な簡易化ないしコンパクト化
には限界があった。
Further, since the mold clamping cylinder side and the injection unit side have no separate structure and have four tie bars, there is a limit to the overall simplification or compactness.

【0005】なお、本発明者の考察によれば、タイバー
は2本構成でも型締力を保持する剛性を保障し得るとと
もに、タイバーの個々が型合わせ精度を低減させる要因
であることを考慮すれば、その本数を減らすことは成形
精度の向上を図る観点からむしろ有利であると考えられ
る。
According to the consideration of the inventor of the present invention, it should be taken into consideration that the tie bar can ensure the rigidity for holding the mold clamping force even with the two tie bars, and that each tie bar is a factor that reduces the mold matching accuracy. For example, it is considered that reducing the number is more advantageous from the viewpoint of improving the molding accuracy.

【0006】そこで、この発明は、構成の簡易化ないし
コンパクト化を図れる射出成形機の提供をその目的とす
る。
Therefore, an object of the present invention is to provide an injection molding machine whose structure can be simplified or made compact.

【0007】[0007]

【課題を解決するための手段】この発明は、上記目的を
達成すべく創案されたもので、その特徴は、二本の平行
なタイバー間に射出ユニットが設けられているとともに
各タイバーには型締シリンダが連結され、当該各型締シ
リンダが金型の一方の型部材に保持されるとともに各型
締シリンダのロッドが他方の型部材に取り付けられ、前
記型締シリンダの動作によりタイバーと同軸上で型開閉
がなされるようにした構成にある。
The present invention was devised to achieve the above object, and is characterized in that an injection unit is provided between two parallel tie bars and that each tie bar has a mold. The mold clamping cylinders are connected, each mold clamping cylinder is held by one mold member of the mold, and the rod of each mold clamping cylinder is attached to the other mold member. It is configured so that the mold can be opened and closed with.

【0008】[0008]

【作用】この発明によれば、型締シリンダの動作によ
り、タイバーの延長としてなる型締シリンダのロッド上
で金型の開閉がなされ、型閉じ状態において射出ユニッ
トにより金型内へ溶融樹脂の充填がなされる。
According to the present invention, the operation of the mold clamping cylinder causes the mold to be opened and closed on the rod of the mold clamping cylinder as an extension of the tie bar, and the molten resin is filled into the mold by the injection unit in the mold closed state. Is done.

【0009】型締シリンダと射出ユニットとが金型の同
一側に存在することによってそれぞれの設置スペースの
並列化がなされ、機全長の短縮化がなされる。
Since the mold clamping cylinder and the injection unit are present on the same side of the mold, the installation spaces of the molds can be parallelized and the overall length of the machine can be shortened.

【0010】また、タイバーの2本構成、タイバー上に
おける金型、型締シリンダ及び射出ユニットの一体的結
合構成により、構成の簡易化ないしコンパクト化がなさ
れる。
Further, the two tie bars, the die on the tie bar, the mold clamping cylinder and the injection unit are integrally connected to each other, so that the structure is simplified or made compact.

【0011】[0011]

【実施例】図1乃至図5はこの発明の一実施例を示すも
ので、ビデオディスクやオーディオディスク等のいわゆ
る円盤状記録媒体を成形するのに好適な例を示すもので
ある。
1 to 5 show an embodiment of the present invention, which is suitable for forming a so-called disc-shaped recording medium such as a video disc or an audio disc.

【0012】ディスク成形機2のベッド4上には成形機
本体6が設置されており、成形機本体6には、金型8
と、一端側がベッド4上に固定された支持ブラケット1
0に取り付けられた2本の平行なタイバー12,12
と、これらのタイバー12,12間に横架された射出ユ
ニット14と、一端側がタイバー12,12に連結され
るとともに他端側が金型8の一方に支持された型締シリ
ンダ16,16とが備えられている。
A molding machine body 6 is installed on the bed 4 of the disk molding machine 2, and the molding machine body 6 has a mold 8
And a support bracket 1 whose one end is fixed on the bed 4
Two parallel tie bars 12, 12 attached to 0
And an injection unit 14 that is laterally bridged between these tie bars 12, 12 and mold clamping cylinders 16, 16 whose one end side is connected to the tie bars 12, 12 and whose other end side is supported by one of the molds 8. It is equipped.

【0013】金型8は、ベッド4に固定されるとともに
型締シリンダ16,16を保持する固定側型板18と、
タイバー12,12の延長部材としての型締シリンダ1
6,16のロッド16a,16aに支持される可動側型
板20とから構成されており、固定側型板18と可動側
型板20とにはそれぞれキャビティを形成する固定側鏡
面部18aと可動側鏡面部20aが備えられている。符
号18cはノズル案内孔を示す。
The mold 8 is fixed to the bed 4, and has a fixed side mold plate 18 for holding the mold clamping cylinders 16 and 16.
Mold clamping cylinder 1 as extension member for tie bars 12, 12.
6, 16 and the movable side mold plate 20 supported by the rods 16a, 16a. The fixed side mold plate 18 and the movable side mold plate 20 are movable with the fixed side mirror surface portion 18a forming a cavity, respectively. The side mirror surface portion 20a is provided. Reference numeral 18c indicates a nozzle guide hole.

【0014】ロッド16aは固定側型板18と可動側型
板20にいわゆる共合せ加工で同軸心上に形成された軸
孔18b,20bに挿通されており、固定側型板18で
はベアリング部材17で摺動摩耗による心ずれを規制さ
れた状態で円滑摺動可能に支持されている。
The rod 16a is inserted into shaft holes 18b and 20b formed on the fixed side mold plate 18 and the movable side mold plate 20 coaxially by so-called co-alignment processing. Is supported so that it can be slid smoothly while the misalignment due to sliding wear is restricted.

【0015】射出ユニット14は、射出シリンダやスク
リュ等を有するとともに油圧シリンダ等の駆動源でタイ
バー12の軸方向に移動可能に設けられたユニット本体
22と、ホッパ等からなる材料供給装置24と、先端に
ノズル26を有して型締シリンダ16,16間に位置付
けられた加熱シリンダ28とから概略構成されている。
The injection unit 14 has a unit main body 22 having an injection cylinder, a screw, etc., and movably in the axial direction of the tie bar 12 by a drive source such as a hydraulic cylinder, a material supply device 24 composed of a hopper, etc. The heating cylinder 28 has a nozzle 26 at its tip and is positioned between the mold clamping cylinders 16 and 16.

【0016】次にディスク成形機2の成形動作を説明す
る。図5に示すように、ロッド16a,16aの退動で
型閉じがなされるとともに、射出ユニット14が移動し
て固定側型板18に対するノズル26のタッチがなされ
る。型締状態で金型8内への樹脂充填がなされ、固化過
程後、ロッド16a,16aの前進動で型開きがなされ
る。従って、金型8の開閉動作は、2本のタイバー1
2,12の同軸上でなされることになる。
Next, the molding operation of the disk molding machine 2 will be described. As shown in FIG. 5, the molds are closed by retracting the rods 16a and 16a, and the injection unit 14 is moved so that the nozzle 26 touches the fixed-side mold plate 18. The mold 8 is filled with resin in the mold clamped state, and after the solidification process, the molds are opened by the forward movement of the rods 16a, 16a. Therefore, the opening / closing operation of the mold 8 is performed by the two tie bars 1
It will be done on 2, 12 coaxial.

【0017】以上の構成によれば、金型8の一方側に射
出ユニット14と型締シリンダ16,16が併存するこ
とになり、それぞれの設置スペースの並列化によって、
成形機本体6の全長の短縮化を図ることができる。ま
た、2本のタイバー12,12軸上に金型8、射出ユニ
ット14及び型締シリンダ16,16が一連に配置され
て一体的に結合されるとともに、ダイプレートを介する
ことなく2本のタイバー12,12の同軸上で直接的に
金型8の開閉がなされ、さらに型締シリンダ16,16
の分散化がなされるので、構成の簡易化ないしコンパク
ト化を図ることができる。
According to the above construction, the injection unit 14 and the mold clamping cylinders 16 and 16 coexist on one side of the mold 8, and by parallelizing the respective installation spaces,
The overall length of the molding machine body 6 can be shortened. Further, the mold 8, the injection unit 14, and the mold clamping cylinders 16 and 16 are arranged in series on the two tie bars 12 and 12 and are integrally coupled to each other, and the two tie bars are not provided via the die plate. The mold 8 is directly opened and closed on the same axis as the mold clamping cylinders 12, 12.
Since it is distributed, the configuration can be simplified or made compact.

【0018】[0018]

【発明の効果】この発明によれば、金型の一方側に射出
ユニットと型締シリンダとが併存することによる長手方
向における設置スペースの並列化によって成形機全長の
短縮化を図ることができる。
According to the present invention, the total length of the molding machine can be shortened by arranging the injection unit and the mold clamping cylinder on one side of the mold in parallel so that the installation space is parallel in the longitudinal direction.

【0019】また、2本のタイバー軸上に金型、射出ユ
ニット及び型締シリンダが一連に配置して一体的に結合
できるので、構成の簡易化ないしコンパクト化を図るこ
とができる。
Further, since the mold, the injection unit and the mold clamping cylinder are arranged in series on the two tie bar shafts and can be integrally connected, the structure can be simplified or made compact.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明に係る射出成形機の一実施例を示す斜
視図である。
FIG. 1 is a perspective view showing an embodiment of an injection molding machine according to the present invention.

【図2】同平面図である。FIG. 2 is a plan view of the same.

【図3】同側面図である。FIG. 3 is a side view of the same.

【図4】型締シリンダのロッドの取付構造を示す概要拡
大断面図である。
FIG. 4 is a schematic enlarged cross-sectional view showing a rod mounting structure of a mold clamping cylinder.

【図5】成形時の平面図である。FIG. 5 is a plan view at the time of molding.

【符号の説明】[Explanation of symbols]

8 金型 12 タイバー 14 射出ユニット 16 型締シリンダ 16a ロッド 18 固定側型板(一方の型部材) 20 可動側型板(他方の型部材) 8 Mold 12 Tie Bar 14 Injection Unit 16 Mold Cylinder 16a Rod 18 Fixed Side Mold Plate (One Mold Member) 20 Movable Side Mold Plate (Other Mold Member)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】二本の平行なタイバー間に射出ユニットが
設けられているとともに各タイバーには型締シリンダが
連結され、当該各型締シリンダが金型の一方の型部材に
保持されるとともに各型締シリンダのロッドが他方の型
部材に取り付けられ、前記型締シリンダの動作によりタ
イバーと同軸上で型開閉がなされる射出成形機。
1. An injection unit is provided between two parallel tie bars, a mold clamping cylinder is connected to each tie bar, and each mold clamping cylinder is held by one mold member of a mold. An injection molding machine in which a rod of each mold clamping cylinder is attached to the other mold member and the mold is opened and closed coaxially with a tie bar by the operation of the mold clamping cylinder.
JP4087345A 1992-04-08 1992-04-08 Injection molding machine Expired - Fee Related JPH0764000B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4087345A JPH0764000B2 (en) 1992-04-08 1992-04-08 Injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4087345A JPH0764000B2 (en) 1992-04-08 1992-04-08 Injection molding machine

Publications (2)

Publication Number Publication Date
JPH05286002A true JPH05286002A (en) 1993-11-02
JPH0764000B2 JPH0764000B2 (en) 1995-07-12

Family

ID=13912285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4087345A Expired - Fee Related JPH0764000B2 (en) 1992-04-08 1992-04-08 Injection molding machine

Country Status (1)

Country Link
JP (1) JPH0764000B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130317A (en) * 1986-11-20 1988-06-02 Hishiya Seiko Kk Injection molding machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130317A (en) * 1986-11-20 1988-06-02 Hishiya Seiko Kk Injection molding machine

Also Published As

Publication number Publication date
JPH0764000B2 (en) 1995-07-12

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