JPH0575566B2 - - Google Patents
Info
- Publication number
- JPH0575566B2 JPH0575566B2 JP6455389A JP6455389A JPH0575566B2 JP H0575566 B2 JPH0575566 B2 JP H0575566B2 JP 6455389 A JP6455389 A JP 6455389A JP 6455389 A JP6455389 A JP 6455389A JP H0575566 B2 JPH0575566 B2 JP H0575566B2
- Authority
- JP
- Japan
- Prior art keywords
- injection device
- tie bar
- mold clamping
- cylinder
- molding machine
- 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 - Fee Related
Links
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 238000001746 injection moulding Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 description 2
- 208000036829 Device dislocation Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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
- B29C45/03—Injection moulding apparatus
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は型締と射出とを共に上方から行なう
竪型の射出成形機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a vertical injection molding machine in which both mold clamping and injection are performed from above.
［従来の技術］
実公昭62−32813号公報に記載されたこの種の
射出成形機は、可動盤または上部基盤に並設した
型締シリンダのラムなどに佇設した支柱に、シリ
ンダ装置を介して射出装置を下向きに吊設してい
る。[Prior Art] This type of injection molding machine described in Publication of Utility Model Publication No. 62-32813 has a cylinder device that is connected to a column mounted on a ram of a mold clamping cylinder installed in parallel on a movable platen or an upper base. The injection device is suspended downward.
［発明が解決しようとする課題］
このような竪型の射出成形機では、ノズルタツ
チ時の位置ずれ防止から、四方に配設した支柱を
案内として移動するようにしており、これにより
安定化を図つている。[Problems to be Solved by the Invention] In such a vertical injection molding machine, in order to prevent the nozzle from shifting when touching it, support columns placed on all sides are used as guides to move the machine, thereby achieving stability. It's on.
このため射出装置を支持する部材の数が、支柱
を始め支柱相互を堅牢に連結するジヨイント板を
も必要とするなど、通常の射出成形機に比べて多
く、上部基盤を貫通して支柱を設けるなど構造も
複雑で、小型化に限度があるばかりか、コスト高
となり易いなどの問題があつた。 For this reason, the number of members supporting the injection device is larger than that of a normal injection molding machine, such as supporting columns and joint plates that firmly connect the supporting columns, and the supporting columns are provided by penetrating the upper base. The structure is complicated, and not only is there a limit to miniaturization, but it also tends to be expensive.
この発明は上記従来の課題を解決するために考
えられたものであつて、その目的はタイバーの共
用により射出装置の支持構造を簡素化し、小型化
は勿論のことコストをも節減できる新たな構成の
竪型射出成形機を提供することにある。 This invention was devised in order to solve the above-mentioned conventional problems, and its purpose is to simplify the support structure of the injection device by sharing tie bars, and to create a new configuration that not only reduces size but also reduces costs. Our objective is to provide a vertical injection molding machine.
［課題を解決するための手段］
上記目的によるこの発明は、機台上方に位置す
る固定部材に複数の型締シリンダを縦に並設し、
その型締シリンダにより作動する可動盤を固定部
材の下側に配し、可動盤の上部に固定部材を通し
て射出装置を下向きに配置した竪型射出成形機に
おいて、両型締シリンダにピストンを有するタイ
バーを上下動自在に貫設し、その型締シリンダか
ら下方に突出したタイバーの下端部に上記可動盤
を連結するとともに、型締シリンダから上方に突
出したタイバーの上端部を、上記射出装置の両側
に設けたシリンダにピストンロツドとして挿入
し、その上端部により射出装置を移動自在に支持
してなり、また射出装置をタイバー上端の延長軸
に設けたストツパーと、該射出装置との間に配設
したばね部材により常時下方へ弾圧することなど
によつて、上記従来の課題を解決してなる。[Means for Solving the Problems] The invention according to the above object includes a plurality of mold clamping cylinders arranged vertically in a fixed member located above the machine stand,
In a vertical injection molding machine in which a movable platen operated by the mold clamping cylinder is placed below a fixed member, and an injection device is placed facing downward through the fixed member through the upper part of the movable platen, a tie bar having pistons in both mold clamping cylinders is used. The movable platen is connected to the lower end of a tie bar that extends downwardly from the mold clamping cylinder, and the upper end of the tie bar that projects upwardly from the mold clamping cylinder is connected to both sides of the injection device. The injection device is inserted as a piston rod into a cylinder provided at the top of the tie bar, and the injection device is movably supported by its upper end, and the injection device is disposed between the stopper provided on the extension shaft at the top end of the tie bar and the injection device. The above-mentioned conventional problems are solved by constantly applying downward pressure using a spring member.
［作用］
上記構成では、型締シリンダへの圧油の供給に
より、タイバーとともに可動盤と射出装置とが昇
降移動し、また射出装置はシリンダに供給された
圧油によりタイバー上端部を上方に移動する。[Operation] In the above configuration, the movable platen and the injection device move up and down together with the tie bar by supplying pressure oil to the mold clamping cylinder, and the injection device moves the upper end of the tie bar upward by the pressure oil supplied to the cylinder. do.
［実施例］
図中１は機台で、側方から機台上に水平に張出
した固定部材２を上方に有する。[Example] In the figure, reference numeral 1 denotes a machine stand, which has a fixing member 2 extending horizontally above the machine stand from the side.
この固定部材２は並行な一対の板体３，３の上
部に形成され、それらの内側には一対の型締シリ
ンダ４，４が縦に並設してある。 This fixing member 2 is formed on the upper part of a pair of parallel plates 3, 3, and a pair of mold clamping cylinders 4, 4 are arranged vertically in parallel inside them.
両型締シリンダ４，４にはピストン５を一体に
有する所要長さのタイバー６がそれぞれ上下動自
在に貫設してあり、型締シリンダ４，４から、型
締ラムとして下方に突出した両タイバー６，６の
下端部には、上記固定部材２の下側に配した可動
盤７が連結してある。 Both mold clamping cylinders 4, 4 are provided with tie bars 6 of a required length each integrally having a piston 5 so as to be movable up and down. A movable platen 7 disposed below the fixed member 2 is connected to the lower ends of the tie bars 6, 6.
この可動盤７の下側面には、上記機台１の上面
に設けた回転板８の上面と下型９と型閉じする上
型１０が取付けてある。 Attached to the lower surface of the movable platen 7 is an upper mold 10 that closes the upper surface of the rotary plate 8 and the lower mold 9 provided on the upper surface of the machine base 1.
１１は射出装置で、両側に上昇用のシリンダ１
２，１２が軸方向に位置を同じくして設けてあ
る。この射出装置１１は上記シリンダ１２，１２
にタイバー６，６の上端部をそれぞれ挿入して、
可動盤７の中央部に下向に配置されている。この
挿入によりタイバー上端部はピストンロツドと、
射出装置１１の支持とを兼ね、射出装置１１はシ
リンダ１２，１２に供給された圧油により上方に
移動する。 11 is an injection device, with cylinders 1 for raising on both sides.
2 and 12 are provided at the same position in the axial direction. This injection device 11 has the cylinders 12, 12
Insert the upper ends of tie bars 6 and 6 into the
It is arranged downward in the center of the movable platen 7. With this insertion, the upper end of the tie bar is connected to the piston rod,
It also serves as support for the injection device 11, and the injection device 11 is moved upward by the pressure oil supplied to the cylinders 12,12.
また各タイバー６の射出装置を支持する上端に
は、延長軸１３がシリンダ端部を貫通して連結し
てある。この延長軸１３の端部にナツト１４をも
つて止着したストツパー１５と、シリンダ上端と
の間には、射出力の反力よりも大きいばね力で、
常に射出装置１１を下方へ弾圧するばね部材１６
が設けてある。これにより射出装置１１のノズル
は上型１０のゲートにノズルタツチする。 Further, an extension shaft 13 is connected to the upper end of each tie bar 6 that supports the injection device, passing through the end of the cylinder. A spring force greater than the reaction force of the injection force is applied between the stopper 15 fixed to the end of the extension shaft 13 with a nut 14 and the upper end of the cylinder.
A spring member 16 that always presses the injection device 11 downward
is provided. As a result, the nozzle of the injection device 11 touches the gate of the upper mold 10.
なお、１７はホツパーある。 Note that 17 has a hopper.
次に作動について説明する。 Next, the operation will be explained.
第１図に示す型開状態において、上記型締シリ
ンダ４，４の上部油室４ａ（第３図参照）に圧油
を供給すると、タイバー６，６と共に可動盤７と
射出装置１１とが降下して、第３図に示す型締状
態となる。 In the mold open state shown in FIG. 1, when pressure oil is supplied to the upper oil chamber 4a (see FIG. 3) of the mold clamping cylinders 4, 4, the movable platen 7 and the injection device 11 are lowered together with the tie bars 6, 6. As a result, the mold is in a clamped state as shown in FIG.
またこの型締状態において、下部油室４ｂに圧
油を供給すると、上記とは逆にタイバー６，６と
共に型締盤７と射出装置１１が上昇して、第１図
に示す型開状態となる。 In addition, in this mold clamping state, when pressure oil is supplied to the lower oil chamber 4b, the mold clamping plate 7 and the injection device 11 rise together with the tie bars 6, 6, contrary to the above, and the mold opening state shown in FIG. 1 is achieved. Become.
上記射出装置１１のノズルを、成形サイクルご
とにゲートから離す必要がある時、または金型交
換、材料パージ等の作業などで射出装置１１を上
型１０から離す必要が生じたときは、上記シリン
ダ１２，１２に圧油を供給する。この油圧により
シリンダ１２，１２は射出装置１１と共に、上記
ばね部材１６，１６を圧縮しながらタイバー上端
部を案内として上昇し、ノズル先端は第４図に示
すように可動盤１０の上方へと離れて位置する。 When it is necessary to separate the nozzle of the injection device 11 from the gate for each molding cycle, or when it is necessary to separate the injection device 11 from the upper mold 10 for work such as mold replacement or material purging, the cylinder Supply pressure oil to 12,12. Due to this oil pressure, the cylinders 12, 12, together with the injection device 11, compress the spring members 16, 16 and move up using the upper ends of the tie bars as a guide, and the nozzle tips move away above the movable platen 10 as shown in FIG. located.
第５図は上記シリンダ１２，１２を復動式とし
て、上記ばね部材１６を省略した他の実施例であ
る。このような場合には、タイバー上端とピスト
ン１８とが連結されていることから、上部油室１
２ａに圧油を供給すると、シリンダ側が射出装置
１１と共に上昇し、ノズルがゲートから離れる。
また反対に下部油室１２ｂに圧油を供給するとシ
リンダ側が下降して図のようにノズルタツチの状
態となる。 FIG. 5 shows another embodiment in which the cylinders 12, 12 are double acting and the spring member 16 is omitted. In such a case, since the upper end of the tie bar and the piston 18 are connected, the upper oil chamber 1
When pressure oil is supplied to 2a, the cylinder side rises together with the injection device 11, and the nozzle leaves the gate.
On the other hand, when pressurized oil is supplied to the lower oil chamber 12b, the cylinder side is lowered to a nozzle touch state as shown in the figure.
［発明の効果］
この発明は上述のように、型締シリンダに貫設
したタイバーの下端部と上端部とに、可動盤と射
出装置とを取付け、その両方をタイバーを介して
昇降自在に固定部材に設けたことから、射出装置
を支持する支柱が不要となる。またタイバーの下
端部を型締ラムに、上端部を射出装置の支持及び
移動用のピストンロツドとに兼用したことから、
構成部材数が従来よりも少なくて済む。また型締
シリンダに貫設したタイバーに、各部材を組込む
ことによつて装置が構成されるので、組立を小員
数の作業員で容易に行なうことができ、小型化は
もちろんコストの節減も図ることができる。[Effects of the Invention] As described above, the present invention has a movable platen and an injection device attached to the lower end and upper end of a tie bar penetrating the mold clamping cylinder, and both of which are fixed so as to be movable up and down via the tie bar. Since it is provided on the member, there is no need for a support to support the injection device. In addition, the lower end of the tie bar is used as a mold clamping ram, and the upper end is used as a piston rod for supporting and moving the injection device.
The number of component parts can be reduced compared to the conventional method. In addition, since the device is constructed by assembling each member into a tie bar that penetrates the mold clamping cylinder, assembly can be easily carried out by a small number of workers, which not only reduces the size but also reduces costs. be able to.
しかもタイバー上端部を案内として油圧により
射出装置を上方に移動することができるので、従
来装置が備えた案内部材を省略でき、また射出装
置の下方移動及びノズルタツチにばね部材を採用
して、油圧シリンダの配管を簡素化することがで
きるなどの利点をも有する。 Moreover, since the injection device can be moved upward by hydraulic pressure using the upper end of the tie bar as a guide, the guide member provided in conventional devices can be omitted.In addition, a spring member is adopted for the downward movement of the injection device and the nozzle touch, and the hydraulic cylinder It also has the advantage of simplifying the piping.
図面はこの考案に係る竪型射出成形機の実施例
を示すもので、第１図は型開時の要部縦断正面
図、第２図は側面図、第３図は型締時の要部縦断
側面図、第４図は射出装置を上方に移動した状態
における要部縦断正面図、第５図は他の実施例の
要部縦断正面図である。
１……機台、２……固定部材、４……型締シリ
ンダ、５……ピストン、６……タイバー、７……
可動盤、１０……上型、１１……射出装置、１２
……シリンダ、１３……延長軸、１４……ナツ
ト、１５……ストツパー、１６……ばね部材、１
８……ピストン。
The drawings show an embodiment of the vertical injection molding machine according to this invention. Fig. 1 is a longitudinal sectional front view of the main part when the mold is opened, Fig. 2 is a side view, and Fig. 3 is a main part when the mold is clamped. FIG. 4 is a longitudinal sectional front view of the main part with the injection device moved upward, and FIG. 5 is a longitudinal sectional front view of the main part of another embodiment. 1... Machine base, 2... Fixing member, 4... Mold clamping cylinder, 5... Piston, 6... Tie bar, 7...
Movable platen, 10... Upper mold, 11... Injection device, 12
... Cylinder, 13 ... Extension shaft, 14 ... Nut, 15 ... Stopper, 16 ... Spring member, 1
8... Piston.
Claims (1)
リンダを縦に並設し、その型締シリンダにより作
動する可動盤を固定部材の下側に配し、可動盤の
上部に固定部材を通して射出装置を下向きに配置
した竪型射出成形機において、 両型締シリンダにピストンと一体のタイバーと
上下動自在に貫設し、その型締シリンダから下方
に突出したタイバーの下端部に上記可動盤を連結
するとともに、型締シリンダから上方に突出した
タイバーの上端部を、上記射出装置の両側に設け
たシリンダピストンロツドとして挿入し、その上
端部により射出装置を移動自在に支持してなるこ
とを特徴とする竪型射出成形機。 ２ 射出装置はタイバー上端の延長軸に設けたス
トツパーと、該射出装置との間に配設したばね部
材により常時下方へ弾圧されている第１項記載の
竪型射出成形機。[Claims] 1. A plurality of mold clamping cylinders are arranged vertically in parallel on a fixed member located above the machine base, a movable platen operated by the mold clamping cylinders is disposed below the fixed member, and the movable platen is In a vertical injection molding machine in which the injection device is placed facing downward through a fixing member at the top, both clamping cylinders have a tie bar integrated with the piston that is movable up and down, and the lower end of the tie bar protrudes downward from the clamping cylinder. At the same time, the upper end of the tie bar protruding upward from the mold clamping cylinder is inserted as a cylinder piston rod provided on both sides of the injection device, and the injection device is made movable by the upper end. A vertical injection molding machine characterized by being supported. 2. The vertical injection molding machine according to item 1, wherein the injection device is constantly pressed downward by a spring member disposed between the stopper provided on the extension shaft at the upper end of the tie bar and the injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6455389A JPH02241713A (en) | 1989-03-16 | 1989-03-16 | Vertical injection molder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6455389A JPH02241713A (en) | 1989-03-16 | 1989-03-16 | Vertical injection molder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02241713A JPH02241713A (en) | 1990-09-26 |
| JPH0575566B2 true JPH0575566B2 (en) | 1993-10-20 |
Family
ID=13261532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6455389A Granted JPH02241713A (en) | 1989-03-16 | 1989-03-16 | Vertical injection molder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02241713A (en) |
-
1989
- 1989-03-16 JP JP6455389A patent/JPH02241713A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02241713A (en) | 1990-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |