JPS6325139Y2 - - Google Patents
Info
- Publication number
- JPS6325139Y2 JPS6325139Y2 JP1981060183U JP6018381U JPS6325139Y2 JP S6325139 Y2 JPS6325139 Y2 JP S6325139Y2 JP 1981060183 U JP1981060183 U JP 1981060183U JP 6018381 U JP6018381 U JP 6018381U JP S6325139 Y2 JPS6325139 Y2 JP S6325139Y2
- Authority
- JP
- Japan
- Prior art keywords
- material supply
- cylinder
- adapter
- injection
- coupling
- 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
- 239000000463 material Substances 0.000 claims description 70
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 239000012778 molding material Substances 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は射出成形機に使用される材料供給装置
に関し、更に詳しくは、軟性の材料を供給するた
めの材料供給装置を提供することを目的とするも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a material supply device used in an injection molding machine, and more specifically, an object of the present invention is to provide a material supply device for supplying a soft material.
従来、ゴム状弾性材料の如くシート状に形成す
ることのできる材料を使用する射出成形機におけ
る材料供給装置としては、第１図に示すように、
射出スクリユー２を内装された射出シリンダ１の
側部に材料供給口３を設け、リボン状に形成され
てリール５に巻回された成形用材料６を材料供給
口３に導き、図示しない駆動手段により射出スク
リユー２を回転させて成形用材料６を射出シリン
ダ１内に呼び込み、続いて図示しない射出手段を
作動させて射出スクリユー２を軸方向に移動させ
ることにより射出シリンダ１内の成形用材料を成
形型のキヤビテイ内へ注入し、次いで射出スクリ
ユー２を後退させて次回成形用材料の呼び込み、
射出、成形を繰返し行なうようにしたものが広く
知られている。 Conventionally, a material supply device for an injection molding machine using a material that can be formed into a sheet shape, such as a rubber-like elastic material, is as shown in FIG.
A material supply port 3 is provided on the side of the injection cylinder 1 in which the injection screw 2 is installed, and the molding material 6 formed in a ribbon shape and wound around a reel 5 is guided to the material supply port 3 and driven by a drive means (not shown). The injection screw 2 is rotated to draw the molding material 6 into the injection cylinder 1, and then the injection means (not shown) is actuated to move the injection screw 2 in the axial direction, thereby drawing the molding material inside the injection cylinder 1. Inject the material into the cavity of the mold, then move the injection screw 2 back to draw in the material for the next molding.
Products in which injection and molding are repeated are widely known.
上記した射出成形装置における材料供給手段
は、通常のゴム様弾性材料を使用する射出成形に
おいては有効に作動するが、例えばシリコンゴム
材料の如く軟性を示すゴム様弾性材料を使用する
射出成形に使用した場合にはリボン状材料片に伸
びを生じてスクリユーの回転による射出シリンダ
内への材料の呼び込みが十分に行なわれないため
に有効に作動させることができなかつた。そこで
押出しシリンダ内に成形材料を内在させ、射出シ
リンダ内へ注入して軟質のゴム様弾性材の呼び込
みを十分にしたものが存在するが、この装置では
押し出し時に流出するエアーが成形品内に流入
し、製品不良となる問題点を解決できなかつた。 The material supply means in the injection molding apparatus described above works effectively in injection molding using ordinary rubber-like elastic materials, but it is used in injection molding using soft rubber-like elastic materials such as silicone rubber materials. In this case, the ribbon-like material piece would stretch and the material could not be sufficiently drawn into the injection cylinder by the rotation of the screw, making it impossible to operate effectively. Therefore, there is a device in which the molding material is contained within the extrusion cylinder and injected into the injection cylinder to sufficiently draw in the soft rubber-like elastic material, but with this device, the air that flows out during extrusion flows into the molded product. However, they were unable to resolve the issues that resulted in product defects.
本考案は上述の問題点に鑑み成されたものであ
つて、その技術的課題は成形品のエアー入り不良
を防止すると共に、巻回された板状成形材料であ
れ、液状成形材料であれ容易に射出シリンダへ注
入できるようにする点にある。 The present invention has been developed in view of the above-mentioned problems, and its technical objective is to prevent air intrusion defects in molded products, and to easily prevent air from entering molded products, whether it is a rolled plate-shaped molding material or a liquid molding material. The point is that it can be injected into the injection cylinder at any time.
上述の課題を解決するための本考案の技術的手
段は以下のように構成されている。すなわち、シ
リンダ空室の一端の開口側に結合部を有すると共
に前記シリンダ空室に内挿した成形用材料を前記
開口側へ押し出す押圧手段を備えた材料供給用シ
リンダと、前記結合部と着脱自在に連結されて先
端が射出シリンダの材料供給口と接合する結合用
アダプタとを有する材料供給装置において、前記
結合用アダプタと交換して、前記材料供給用シリ
ンダの結合部に着脱自在に連結できると共に、内
部に前記シリンダ空室と前記シリンダ空室内の成
形用材料と共に介在する気体を吸引できる吸引手
段とに連通する連通孔を有し、且つ前記連通孔に
前記成形用材料が前記連通孔内へ流入するのを閉
弁して防止するバルブを有する脱気アダプタを取
付けられるようにしたことである。 The technical means of the present invention for solving the above-mentioned problems is configured as follows. That is, a material supply cylinder that has a coupling part on the opening side of one end of the cylinder cavity and is equipped with a pressing means for pushing the molding material inserted into the cylinder cavity toward the opening side, and a material supply cylinder that can be freely attached to and detached from the coupling part. A material supply device having a coupling adapter whose tip is connected to a material supply port of an injection cylinder, wherein the coupling adapter can be replaced with the coupling adapter and detachably connected to the coupling part of the material supply cylinder. , has a communication hole therein that communicates with the cylinder cavity and a suction means capable of sucking the gas present together with the molding material in the cylinder cavity, and the molding material flows into the communication hole through the communication hole. A deaeration adapter having a valve that closes and prevents inflow can be attached.
そして、例えば、材料供給シリンダ内への材料
の挿入は、シート状に展伸した材料片を螺旋状に
巻回して棒状体を形成し、射出用シリンダから取
外された状態にある材料供給用シリンダの開口側
から挿入した後に射出用シリンダの材料供給口に
結合させるのであるが、この結合に先立つて射出
用シリンダの開口側を蓋状の脱気用アダプタによ
つて閉塞し、真空ポンプにより材料供給用シリン
ダ内にある空気を脱気するとともに押圧手段を作
動させ、材料供給用ピストンにより材料を圧し、
材料供給用シリンダの内部空所が無気泡の材料に
よつて充たされ、空気が残留しないようにした後
に、脱気用アダプタを取り外した材料供給用シリ
ンダを、結合用アダプタを介して射出シリンダに
結合させるようになして材料供給装置から射出シ
リンダ内へ供給される材料内における空気の混入
を完全に防止し、製品内部の気泡の混在のおそれ
を解消させるものである。 For example, to insert the material into the material supply cylinder, a material piece stretched into a sheet shape is spirally wound to form a rod-shaped body, and the material supply cylinder is removed from the injection cylinder. After insertion from the open side of the cylinder, it is connected to the material supply port of the injection cylinder, but prior to this connection, the open side of the injection cylinder is closed with a lid-shaped deaeration adapter, and a vacuum pump is used to close the open side of the injection cylinder. Deaerating the air in the material supply cylinder and activating the pressing means to press the material with the material supply piston,
After the internal space of the material supply cylinder is filled with bubble-free material and no air remains, the material supply cylinder from which the degassing adapter has been removed is connected to the injection cylinder via the coupling adapter. This completely prevents air from entering the material supplied from the material supply device into the injection cylinder, thereby eliminating the possibility of air bubbles being mixed inside the product.
以下、図面に基づいて本考案の実施例について
説明する。 Embodiments of the present invention will be described below based on the drawings.
第２図の実施例においては、結合用アダプタ１
４が端部を材料供給口３に挿入されて射出シリン
ダ１に結合され、材料供給用ピストン１１を内装
する材料供給用シリンダ１０が、開口側端部に相
対回転可能に付された結合用ナツト１５を結合用
アダプタ１４と螺合させることによつて射出シリ
ンダ１に結合されており、材料供給用シリンダ１
０の射出シリンダ１との結合側に対し反対側の端
部に、油圧装置による押圧手段１７が押圧ロツド
１８により材料供給用ピストン１１に対し軸方向
の往復運動を付与し得る如くなして結合されてい
る。 In the embodiment of FIG. 2, the coupling adapter 1
4 is connected to the injection cylinder 1 by inserting the end thereof into the material supply port 3, and the material supply cylinder 10 having a material supply piston 11 therein is attached to the opening side end thereof so as to be relatively rotatable. 15 is connected to the injection cylinder 1 by screwing it together with the connection adapter 14, and the material supply cylinder 1
Pressing means 17 by a hydraulic device is connected to the end of the piston 0 opposite to the side where it is connected to the injection cylinder 1 so as to be able to apply reciprocating motion in the axial direction to the material supply piston 11 by means of a pressing rod 18. ing.
上記した実施例においては、押圧手段１７を射
出シリンダ１内の射出スクリユーの回転と連動し
て作動させ、押圧ロツド１８を介して材料供給ピ
ストン１１を押圧させることにより、予めシリン
ダ空室１２内に充填された成形用材料が射出シリ
ンダ１内へ供給される。 In the embodiment described above, the pressing means 17 is operated in conjunction with the rotation of the injection screw in the injection cylinder 1, and the material supply piston 11 is pressed through the pressing rod 18, so that the material is preliminarily injected into the cylinder cavity 12. The filled molding material is supplied into the injection cylinder 1.
第３図は第２図の材料供給装置に併用される脱
気用アダプタの断面図である。このの脱気用アダ
プタは脱気用アダプタ本体２０のおねじ部が材料
供給用シリンダ１０の開口側結合部に係合された
結合用ナツト１５のめねじ部と螺合することによ
って材料供給用シリンダ１０と連結される。脱気
用アダプタ本体２０の中央部部には連通孔を有
し、この連通孔にバルブ２１が設けられていると
共に、このバルブ２１には通気用孔２２が設けら
れて脱気用を成している。すなわち、バルブ２１
は成形用材料により閉弁されても、材料供給用シ
リンダ１０内の気体を閉弁されたすき間から通気
用孔２２側へ流出できるように成されている。 FIG. 3 is a sectional view of a deaeration adapter used in conjunction with the material supply device of FIG. 2. This deaeration adapter is used for material supply by screwing the male thread of the deaeration adapter main body 20 with the female thread of the coupling nut 15 engaged with the opening side coupling part of the material supply cylinder 10. It is connected to the cylinder 10. The central part of the deaeration adapter body 20 has a communication hole, and this communication hole is provided with a valve 21, and this valve 21 is provided with a ventilation hole 22 for deaeration. ing. That is, valve 21
Even if the valve is closed by the molding material, the gas in the material supply cylinder 10 can flow out from the closed gap to the ventilation hole 22 side.
そして、通気用孔２２の出口側は真空ポンプに
連結するコネクタ２４が備えられている。この脱
気用アダプタによる脱気は以下の手順により行な
われる。シート状の材料片を螺旋状に巻回すこと
によつて棒状体に形成された成形用材料を空室１
２内に挿入された材料供給用シリンダ１０に、脱
気用アダプタ本体２０を結合させ、コネクタ２４
に連接された真空ポンプにより空室１２内の空気
を除去するとともに、押圧手段を作動させて空室
１２内の材料を材料供給用ピストン１１により押
圧させて空室１２の全スペースが材料により完全
に満たされるようになすことにより脱気が完成さ
れる。バルブ２１は上記した材料供給用ピストン
１１により押圧された成形用材料の一部が通気用
孔２２側へ吸い込まれるのを防止する機能を担う
ものである。 A connector 24 connected to a vacuum pump is provided on the outlet side of the ventilation hole 22. Degassing using this degassing adapter is performed by the following procedure. A molding material formed into a rod-like body by spirally winding a sheet-like material piece is placed in the empty chamber 1.
The deaeration adapter main body 20 is coupled to the material supply cylinder 10 inserted into the material supply cylinder 10 inserted into the connector 24.
At the same time, the air in the cavity 12 is removed by a vacuum pump connected to the vacuum pump, and the pressing means is operated to press the material in the cavity 12 with the material supply piston 11, so that the entire space in the cavity 12 is completely filled with the material. Deaeration is completed by filling the air with water. The valve 21 has a function of preventing a part of the molding material pressed by the material supply piston 11 from being sucked into the ventilation hole 22 side.
本考案の材料供給装置は以下のような効果を奏
する。 The material supply device of the present invention has the following effects.
(イ) 材料供給用シリンダには脱気用アダプタが結
合用アダプタと交換して取付けられるように成
されているから、脱気用アダプタを取付けて材
料供給用シリンダにより成形用材料を圧縮する
と、材料供給用シリンダ内および成形用材料に
含まれる気体は脱気用アダプタを介して外へ
（真空ポンプへ）流入させることができる。こ
の脱気は脱気用アダプタを介すことにより材料
供給用シリンダ内で高圧縮状態で行い得るか
ら、成形用材料に含有する気体を完全に除去で
き、成形品がエアー入り不良となるのを防止す
る効果が期待できる。(b) Since the deaeration adapter is attached to the material supply cylinder in exchange for the coupling adapter, when the deaeration adapter is attached and the molding material is compressed by the material supply cylinder, The gas contained in the material supply cylinder and the molding material can be flowed outside (to the vacuum pump) via a deaeration adapter. This deaeration can be performed in a highly compressed state in the material supply cylinder via a deaeration adapter, so the gas contained in the molding material can be completely removed and molded products can be prevented from becoming air-filled. It can be expected to have a preventive effect.
(ロ) 本考案の材料供給装置は成形用材料が固形で
あつても、液体であつても使用することができ
る。特に固体（ループ形状）のものであつて
も、脱気用アダプタを交換するのみで大容量の
材料供給用シリンダから射出シリンダへの材料
供給ができるから、材料供給装置の機構を簡単
にできる。しかも、外部からの異物の混入防止
も従来装置に比べてすぐれている。(b) The material supply device of the present invention can be used whether the molding material is solid or liquid. In particular, even if the material is solid (loop-shaped), the material can be supplied from a large-capacity material supply cylinder to an injection cylinder by simply replacing the deaeration adapter, so the mechanism of the material supply device can be simplified. Moreover, the prevention of foreign matter from entering from the outside is superior to conventional devices.
尚、図示の実施例においては材料供給用ピスト
ンに対する押圧手段として通常の油圧シリンダが
示されているが、これに限定されず、ネジ装置、
ラツク及びピニオン装置等を使用しても同様の効
果が得られる。 In the illustrated embodiment, an ordinary hydraulic cylinder is shown as a means for pressing the material supply piston, but the invention is not limited to this, and a screw device,
A similar effect can be obtained by using a rack and pinion device or the like.
第１図は従来技術による材料供給装置の実施例
の断面図、第２図は本考案による材料供給装置の
実施例の断面図、第３図は第２図の実施例に使用
される脱気用アダプタの実施例の断面図である。
１……射出シリンダ、２……射出スクリユー、
３……材料供給口、５……リール、１０……材料
供給用シリンダ、１１……材料供給用ピストン、
１２……シリンダ空室、１４……結合用アダプ
タ、１５……結合用ナツト、１７……押圧手段、
１８……押圧ロツド、２０……脱気用アダプタ本
体、２１……バルブ、２２……通気用孔、２３…
…バネ手段、２４……コネクタ。
FIG. 1 is a sectional view of an embodiment of a material supply device according to the prior art, FIG. 2 is a sectional view of an embodiment of a material supply device according to the present invention, and FIG. 3 is a deaeration used in the embodiment of FIG. 2. FIG. 3 is a cross-sectional view of an embodiment of an adapter for 1... Injection cylinder, 2... Injection screw,
3... Material supply port, 5... Reel, 10... Material supply cylinder, 11... Material supply piston,
12... Cylinder empty chamber, 14... Coupling adapter, 15... Coupling nut, 17... Pressing means,
18... Pressing rod, 20... Deaeration adapter body, 21... Valve, 22... Ventilation hole, 23...
...Spring means, 24...Connector.
Claims (1)
すると共に前記シリンダ空室１２に内挿した成形
用材料を前記開口側へ押し出す押圧手段を備えた
材料供給用シリンダ１０と、前記結合部と着脱自
在に連結されて先端が射出シリンダ１の材料供給
口３と接合する結合用アダプタ１４とを有する材
料供給装置において、前記結合用アダプタ１４と
交換して、前記材料供給用シリンダ１０の結合部
に着脱自在に連結できると共に、内部に前記シリ
ンダ空室１２と前記シリンダ空室１２内の成形用
材料と共に介在する気体を吸引できる吸引手段と
に連通する連通孔を有し、且つ前記連通孔に前記
成形用材料が前記連通孔内へ流入するのを閉弁し
て防止するバルブ２１を有する脱気アダプタ２０
を取付けられるようにしたことを特徴とする材料
供給装置。 A material supply cylinder 10 has a coupling part on the opening side of one end of the cylinder cavity 12 and is equipped with a pressing means for pushing out the molding material inserted into the cylinder cavity 12 toward the opening side, and is detachable from the coupling part. In a material supply device having a coupling adapter 14 which is freely connected and whose tip joins to the material supply port 3 of the injection cylinder 1, the coupling adapter 14 is replaced with the coupling adapter 14 and the coupling adapter 14 is connected to the coupling part of the material supply cylinder 10. It can be detachably connected and has a communication hole therein communicating with the cylinder cavity 12 and a suction means capable of sucking the molding material in the cylinder cavity 12 as well as the gas present therein. A degassing adapter 20 having a valve 21 that closes and prevents molding material from flowing into the communication hole.
A material supply device characterized in that it can be attached to a material supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981060183U JPS6325139Y2 (en) | 1981-04-24 | 1981-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981060183U JPS6325139Y2 (en) | 1981-04-24 | 1981-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57171619U JPS57171619U (en) | 1982-10-28 |
| JPS6325139Y2 true JPS6325139Y2 (en) | 1988-07-08 |
Family
ID=29856490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981060183U Expired JPS6325139Y2 (en) | 1981-04-24 | 1981-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6325139Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5432462A (en) * | 1977-08-19 | 1979-03-09 | Tsumura Juntendo Kk | Novel compound * production thereof and antipyretic agent containing same as effective ingredient |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535561U (en) * | 1976-07-02 | 1978-01-18 |
-
1981
- 1981-04-24 JP JP1981060183U patent/JPS6325139Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5432462A (en) * | 1977-08-19 | 1979-03-09 | Tsumura Juntendo Kk | Novel compound * production thereof and antipyretic agent containing same as effective ingredient |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57171619U (en) | 1982-10-28 |
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