JPS58220715A - Injection molding method of rubber of resin material - Google Patents
Injection molding method of rubber of resin materialInfo
- Publication number
- JPS58220715A JPS58220715A JP10351782A JP10351782A JPS58220715A JP S58220715 A JPS58220715 A JP S58220715A JP 10351782 A JP10351782 A JP 10351782A JP 10351782 A JP10351782 A JP 10351782A JP S58220715 A JPS58220715 A JP S58220715A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- rubber
- injection molding
- microwave irradiation
- resin material
- 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
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
-
- 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
- B29C45/58—Details
- B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
Abstract
Description
【発明の詳細な説明】
本発明は、ゴム又は樹脂材料の金型等への射出により製
品を成形する射出成形機を用いたゴム又は樹脂材料の射
出成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of injection molding a rubber or resin material using an injection molding machine that molds a product by injecting the rubber or resin material into a mold or the like.
従来、この種の射出成形方法としては、例えば第１図に
示す射出成形機が用いられ、ホッパー１のゴム又は樹脂
等の成形材料２をプランジャ３の抑圧によりシリンダ４
内に供給し、シリンダ４内には成形材料２をシリンダ４
内に拡散するだめのトービド（拡散筒）５が配置され、
プランジャ３によ多シリンダ４内に供給された成形材料
２が先端のノズル６に移送される過程で、シリンダ４の
外部に設けたヒータ７による加熱を受けて溶融し、溶融
した成形材料２をノズル６から金型９に射出して成形品
ｌＯを製造するようにしている。Conventionally, as an injection molding method of this type, an injection molding machine shown in FIG.
The molding material 2 is supplied into the cylinder 4.
A tobid (diffusion tube) 5 for diffusion inside is arranged,
In the process of transferring the molding material 2 supplied into the cylinder 4 by the plunger 3 to the nozzle 6 at the tip, it is heated by the heater 7 provided outside the cylinder 4 and melts, and the molten molding material 2 is transferred to the nozzle 6 at the tip. The molded product IO is manufactured by injecting from the nozzle 6 into the mold 9.
しかしながら、このような従来の射出成形方法にあって
は、シリンダ４内を移送する成形材料２の溶融をシリン
ダ４の外部に設けたヒータ７による加熱で行なうように
していたため、シリンダ４を成形材料２の溶融温度に加
熱するまでの準備に時間がかかり、また外気温度の変化
によりシリンダ４の内部温度が変化するため射出成形条
件を常にチェックして適正な条件に調整しなければなら
ないという問題点があった。However, in such conventional injection molding methods, the molding material 2 transferred inside the cylinder 4 is heated by the heater 7 provided outside the cylinder 4, so the cylinder 4 is melted by the molding material 2. The problem is that it takes time to prepare for heating to the melting temperature of 2, and the internal temperature of cylinder 4 changes due to changes in outside air temperature, so the injection molding conditions must be constantly checked and adjusted to the appropriate conditions. was there.
本発明は、このような従来の問題点に鑑みてなされたも
ので、射出成形機のシリンダをセラミック材料で形成す
ることによりマイクロ波の照射により成形材料を直接加
熱す乏ことにより、加熱工程の短縮化を図ると共に熱効
率を高め、更にゴム。The present invention was made in view of these conventional problems, and by forming the cylinder of an injection molding machine from a ceramic material, the molding material is not directly heated by microwave irradiation, thereby reducing the heating process. In addition to shortening the length, it also increases thermal efficiency and is made of rubber.
プラスチックなどや成形材料の加熱条件を安定化して良
好な射出成形ができるゴム又は樹脂材料の以下、本発明
を図面に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings, which describe a rubber or resin material that can stabilize the heating conditions of plastics and molding materials and perform good injection molding.
第２図は本発明の射出成形方法に用いる射出成形機の一
実施例を示した断面説明図である。FIG. 2 is a cross-sectional explanatory view showing one embodiment of an injection molding machine used in the injection molding method of the present invention.
まず、構成を説明すると、１はゴム又は樹脂等の成形材
料２を貯溜したホッパーであり、ホッパー１の成形材料
２は、プランジャ３によりシリンダ１２内に供給される
ようにしている。First, to explain the structure, 1 is a hopper that stores a molding material 2 such as rubber or resin, and the molding material 2 in the hopper 1 is supplied into a cylinder 12 by a plunger 3.
シリンダ１２はセラミック材料で作られており、シリン
ダ１２の内部に同じくセラミック材料で作られたトーピ
ド（拡散筒）１６を配設している。The cylinder 12 is made of a ceramic material, and a torpedo (diffusion tube) 16 also made of a ceramic material is disposed inside the cylinder 12.
シリンダ１２の先端には、ノズル６が装着され、ノズル
６には溶融した成形材料２が射出される金型９が設けら
れている。セラミック材料で形成され九シリンダ１２の
外側にはマイクロ波照射装置１４が設けられ、このマイ
クロ波照射装置１４には図示しないマイクロ波発振器よ
りのマイクロ波電力が供給され、シリンダ１２を介して
シリンダ１２内の成形材料２にマイクロ波を照射するよ
うに構成している。A nozzle 6 is attached to the tip of the cylinder 12, and the nozzle 6 is provided with a mold 9 into which the molten molding material 2 is injected. A microwave irradiation device 14 is provided on the outside of the cylinder 12 made of ceramic material, and microwave power is supplied from a microwave oscillator (not shown) to the microwave irradiation device 14. The molding material 2 inside is configured to be irradiated with microwaves.
次に第２図の射出成形機を用いた本発明０射出成形方法
を説明する。Next, the injection molding method of the present invention using the injection molding machine shown in FIG. 2 will be explained.
まず、プランジャ３を後退させてホッパー１の成形材料
２をシリンダ１２内の入口側に投入し、次いでプランジ
ャ３をシリンダ１２側に押し出すことによシホツパ−１
よシ投入され庭成形材料２をシリンダ１２内に加圧供ｉ
する。First, the molding material 2 of the hopper 1 is introduced into the inlet side of the cylinder 12 by retracting the plunger 3, and then the plunger 3 is pushed out toward the cylinder 12 side.
The garden molding material 2 that has been poured into the cylinder 12 is pressurized i.
do.
この時、マイクロ波照射装置１４はシリンダ１２内に対
し、マイクロ波を照射しており、プランジャ３の抑圧に
より成形材料２がノズル６まで移送される過程で照射さ
れているマイクロ波を吸収して発熱し、このマイクロ波
の照射による成形材料２の直接加熱により成形材料２は
、ノズル６に至るまでに完全に溶融し、溶融し九成形材
料２はノズル６より金型９に射出され、成形品を射出成
形するようになる。At this time, the microwave irradiation device 14 is irradiating the inside of the cylinder 12 with microwaves, and the molding material 2 absorbs the irradiated microwaves in the process of being transferred to the nozzle 6 due to the depression of the plunger 3. The molding material 2 is heated directly by the microwave irradiation, and the molding material 2 is completely melted by the time it reaches the nozzle 6.The molding material 2 is then injected from the nozzle 6 into the mold 9 and molded. Started injection molding of products.
このように本発明の射出成形方法によれば、成形材料が
シリンダ１２内を移送される過程でマイクロ波の照射に
より直接加熱されるため、成形材料２を溶融するために
必要な加熱工程の時間を大幅に短縮することができ、又
、直接加熱であることから熱効率も高く、更に成形材料
の加熱温度は、マイクロ波照射装置１４によるマイクロ
波電力により一義的に定まるととから外気温度の変化に
、−る影曽を受けずに安定した加熱条件が得られ、外気
温度の変化に応じて内部温度をチェックして加熱条件を
変更する等の調整作業が不要となり、従来の成形方法に
較べて大幅に生産性を高めることができる。As described above, according to the injection molding method of the present invention, since the molding material is directly heated by microwave irradiation during the process of being transferred inside the cylinder 12, the time required for the heating process to melt the molding material 2 is reduced. In addition, since direct heating is used, thermal efficiency is high, and since the heating temperature of the molding material is uniquely determined by the microwave power from the microwave irradiation device 14, changes in outside temperature can be achieved. Compared to conventional molding methods, stable heating conditions can be obtained without being affected by cold effects, and there is no need for adjustment work such as checking the internal temperature and changing heating conditions according to changes in outside temperature. can significantly increase productivity.
第３図は、本発明の射出成形方法に用いる射出成形機の
他の実施例を示した断面説明図であり、この実施例は、
マイクロ波照射装置１４をセラミック材料で形成された
シリンダ１２の内部に設けたことを特徴とする特
このようにシリンダー２の内部にマイクロ波照射装置１
４を設けた場合には、シリンダー２内を移送される成形
材料２に対し、マイクロ波照射装置１４より直接マイク
ロ波が照射できるので第２図に於けるシリンダー２の外
部にマイクロ波照射装置１４を設けた場合に較べてマイ
クロ波の損失が少なく、同・−の加熱条件を得るために
必要なマイクロ波供給電力を少なくすることができる。FIG. 3 is a cross-sectional explanatory diagram showing another embodiment of the injection molding machine used in the injection molding method of the present invention, and this embodiment has the following features:
The microwave irradiation device 14 is provided inside the cylinder 12 made of ceramic material.
4, the microwave irradiation device 14 can directly irradiate the molding material 2 transferred within the cylinder 2, so the microwave irradiation device 14 is installed outside the cylinder 2 in FIG. Compared to the case where a heating condition is provided, there is less microwave loss, and the amount of microwave power required to obtain the same heating conditions can be reduced.
第４図は、本発明の射出成形方法に用いる射出成形機の
他の冥施例を示した断面説明図であり、この実施例は、
マイクロ波照射装置１４をセラミック材料で形成された
シリンダー２の内部に配設した同じくセラミック材料で
形成されたトービド１６の中に埋設させたことを％徴と
する。FIG. 4 is a cross-sectional explanatory diagram showing another embodiment of the injection molding machine used in the injection molding method of the present invention, and this embodiment has the following features:
It is noted that the microwave irradiation device 14 is embedded in a torpedo 16 also made of ceramic material, which is disposed inside the cylinder 2 made of ceramic material.
１・□
尚、トーピド１６に内蔵する・マイクロ波照射装置１４
は、サイズ的な制約を受けてマイクロ波の照射範囲が制
限されるので、ノズル６を設ケタシリンダー２の外側に
もマイクロ波照射装置１４を設け、ノズル６の部分に於
いてもマイクロ波の照射による成形材料２の加熱を行な
うようＫしている。1・□ Additionally, the microwave irradiation device 14 built into the torpedo 16
Since the microwave irradiation range is limited due to size constraints, a microwave irradiation device 14 is also installed outside the cylinder 2 where the nozzle 6 is installed, and the microwave irradiation range is also limited at the nozzle 6. The molding material 2 is heated by irradiation.
この第４図の実施例に於いても、プランジャ３によりシ
リンダ１２内に供給された成形材料２は、ノズル６まで
移送される過程でトービド１６に内蔵したマイクロ波照
射装置１４による７１゛クロ波の照射を受けて直接加熱
され、更にノズル６の部分に設けたマイクロ波照射装置
１４によるマイクロ波の照射による加熱で溶融され、ノ
ズル６より金型９に射出されるようになる。In the embodiment shown in FIG. 4 as well, the molding material 2 supplied into the cylinder 12 by the plunger 3 is irradiated with 71° chroma by the microwave irradiation device 14 built into the tovide 16 while being transferred to the nozzle 6. The melt is directly heated by the irradiation, and is further melted by heating by microwave irradiation from the microwave irradiation device 14 provided at the nozzle 6, and is injected from the nozzle 6 into the mold 9.
以上説明してきたように、本発明によれば、セラミック
材料で作られた射出成形機のシリンダ内にプランジャの
抑圧によりゴム又は樹脂材料を供給し、シリンダ内に供
給したゴム又は樹脂材料が先端のノズルまで移送される
過程でマイクロ波を照射して溶融し、溶融したゴム又は
樹脂材料を金型等に射出して成形品を製造するようにし
たため、シリンダ内を移送される成形材料の加熱がマイ
クロ波の照射により直接加熱されることからヒーターを
用いた従来方法に較べ成形材料を溶融するための加熱工
程に賛する時間を大幅に短縮することができ、又、成形
材料の直接加熱であることから熱効率が高く、更に成形
材料の加熱温度は照射するマイクロ波の供給電力により
一義的に定まることから、外気温度等の外乱により加熱
条件が変化せず、常に安定した成形条件をもって良好な
射出成形を行なうことができ、射出成形により製造され
るゴム、プラスチック等の成形品の生産性を大幅に向上
することができるという効果が得られる。As explained above, according to the present invention, rubber or resin material is supplied into the cylinder of an injection molding machine made of ceramic material by the pressure of the plunger, and the rubber or resin material supplied into the cylinder is Molded rubber or resin material is melted by irradiation with microwaves during the process of being transferred to the nozzle, and the molten rubber or resin material is injected into a mold, etc. to produce a molded product, which reduces the heating of the molding material being transferred inside the cylinder. Since heating is performed directly by microwave irradiation, the time required for the heating process to melt the molding material can be significantly shortened compared to the conventional method using a heater. Therefore, thermal efficiency is high, and since the heating temperature of the molding material is uniquely determined by the power supplied to the irradiated microwave, the heating conditions do not change due to external disturbances such as outside temperature, and stable molding conditions are always used to ensure good injection. Molding can be carried out, and the productivity of molded products of rubber, plastic, etc. manufactured by injection molding can be significantly improved.
第１図は従来方法に用いる射出成形機の断面説明図、第
２図は本発明の射出成形方法に用いる射出成形機の一実
施例を示した断面説明図、第２゜３及び４図は本発明の
射出成形方法に用いる射出成形機の他の実施例を示した
断面説明図である。
１・・・・・・ホッパー ２・・・・・・成形材
料３・・・・・・プランジャ ６・・・・・・ノズ
ル９・・・・・・金型 １２・・・シリンダ
１４・・・マイクロ波照射装置
１６・・・トーピド（拡散筒）
特 許 出 願 人 リズム自動車部品製造株式会社
代理人 弁理士 竹 内 進第１図
２
第２図
６ ２ １６Fig. 1 is an explanatory cross-sectional view of an injection molding machine used in the conventional method, Fig. 2 is an explanatory cross-sectional view showing an embodiment of the injection molding machine used in the injection molding method of the present invention, and Figs. FIG. 2 is a cross-sectional explanatory diagram showing another embodiment of an injection molding machine used in the injection molding method of the present invention. 1... Hopper 2... Molding material 3... Plunger 6... Nozzle 9... Mold 12... Cylinder 14...・Microwave irradiation device 16... Torpedo (diffusion tube) Patent applicant: Rhythm Automotive Parts Manufacturing Co., Ltd. Representative Patent attorney Susumu Takeuchi Figure 1 2 Figure 2 6 2 16
Claims (4)
ンダ内に、プランジャの抑圧によりゴム又は樹脂材料を
供給し、該シリンダ内に供給したゴム又は樹脂材料が先
端のノズルまで移送される過程でマイクロ波を照射して
浴融し、溶融したゴム又は樹脂材料を金型等に射出して
成形品を製造することを特徴とするゴム又は樹脂材料の
射出成形方法。(1) Rubber or resin material is supplied into the cylinder of an injection molding machine made of ceramic material by the pressure of a plunger, and in the process of transporting the rubber or resin material into the cylinder to the nozzle at the tip. A method for injection molding a rubber or resin material, which comprises manufacturing a molded product by irradiating a wave to melt the rubber or resin material in a bath, and then injecting the molten rubber or resin material into a mold or the like.
置したマイクロ波照射装置により行なう特許請求の範囲
第１項記載のゴム又は樹脂材料の射出成形方法。(2) The method for injection molding a rubber or resin material according to claim 1, wherein the microwave irradiation is performed by a microwave irradiation device placed outside the cylinder.
たマイクロ波照射装置により行なう特許請求の範囲第１
項記載のゴム又は樹脂材料の射出成形方法。(3) The microwave irradiation is performed by a microwave irradiation device placed inside the cylinder.
Injection molding method for rubber or resin materials as described in .
セラミック製の拡散筒に内蔵したマイクロ波照射装置に
より行なう特許請求の範囲第１項記載のゴム又は樹脂材
料の射出成形方法。(4) The method for injection molding a rubber or resin material according to claim 1, wherein the microwave irradiation is performed by a microwave irradiation device built into a ceramic diffusion tube disposed within a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10351782A JPS58220715A (en) | 1982-06-16 | 1982-06-16 | Injection molding method of rubber of resin material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10351782A JPS58220715A (en) | 1982-06-16 | 1982-06-16 | Injection molding method of rubber of resin material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58220715A true JPS58220715A (en) | 1983-12-22 |
Family
ID=14356134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10351782A Pending JPS58220715A (en) | 1982-06-16 | 1982-06-16 | Injection molding method of rubber of resin material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58220715A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0618057A1 (en) * | 1993-03-25 | 1994-10-05 | Ford Motor Company Limited | Resin transfer moulding |
| US6156359A (en) * | 1997-06-11 | 2000-12-05 | All 4 Fun Consumers Products Inc. | Method for forming a molded confection |
| JP2007261264A (en) * | 2006-03-29 | 2007-10-11 | Samsung Kwangju Electronics Co Ltd | Injection machine and its control method |
-
1982
- 1982-06-16 JP JP10351782A patent/JPS58220715A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0618057A1 (en) * | 1993-03-25 | 1994-10-05 | Ford Motor Company Limited | Resin transfer moulding |
| US6156359A (en) * | 1997-06-11 | 2000-12-05 | All 4 Fun Consumers Products Inc. | Method for forming a molded confection |
| JP2007261264A (en) * | 2006-03-29 | 2007-10-11 | Samsung Kwangju Electronics Co Ltd | Injection machine and its control method |
| EP1839837A3 (en) * | 2006-03-29 | 2008-10-29 | Samsung Gwangju Electronics Co., Ltd. | Injection apparatus and control method thereof |
| US7604473B2 (en) | 2006-03-29 | 2009-10-20 | Samsung Gwangju Electronics Co., Ltd. | Injection apparatus having a microwave generation part |
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