JPS6363370B2 - - Google Patents
Info
- Publication number
- JPS6363370B2 JPS6363370B2 JP57151097A JP15109782A JPS6363370B2 JP S6363370 B2 JPS6363370 B2 JP S6363370B2 JP 57151097 A JP57151097 A JP 57151097A JP 15109782 A JP15109782 A JP 15109782A JP S6363370 B2 JPS6363370 B2 JP S6363370B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- plug
- injection hole
- molding material
- 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.)
- Expired
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
- B29C2045/5625—Closing of the feed opening before or during compression
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は熱硬化性樹脂、熱可塑性樹脂又はゴム
を金型内で圧縮成形する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for compression molding a thermosetting resin, thermoplastic resin or rubber in a mold.
本発明は仕上がりが美しく、局部に応力集中が
生じず、且つ能率的に成形作業を進めることがで
きる合成樹脂又はゴムの成形方法を提供すること
を目的とする。 An object of the present invention is to provide a method for molding synthetic resin or rubber that provides a beautiful finish, prevents local stress concentration, and allows efficient molding work.
本発明方法は上記目的を達成するため、金型
１，２内に、射出ノズル９により注入孔３を通じ
て定量の成形材料ａを移送した後、前記射出ノズ
ル９を後退させて前記注入孔３に栓体１１を挿入
し、加圧状態の下で前記栓体１１により閉栓する
と共に金型１，２を閉じて成形材料ａを圧縮し、
且つ冷却又は加熱することを特徴とする。 In order to achieve the above object, the method of the present invention transfers a fixed amount of the molding material a into the molds 1 and 2 through the injection hole 3 by the injection nozzle 9, and then retreats the injection nozzle 9 to the injection hole 3. Inserting the plug 11, closing the plug with the plug 11 under pressure, and closing the molds 1 and 2 to compress the molding material a;
It is also characterized by cooling or heating.
以下図面に示す実施例に基き、本発明を具体的
に説明する。 The present invention will be specifically described below based on embodiments shown in the drawings.
先ず図示する装置を使つて熱可塑性樹脂を成形
する方法を具体的に述べる。上方に位置する雌金
型１の中央には、上部がテーパー孔４、下部が直
円孔５となる注入孔３を設けている。この雌金型
１の下方には雄金型２を配している。両金型１，
２には冷却水を循環させるための通水孔６，６…
…を設けている。 First, a method for molding thermoplastic resin using the illustrated apparatus will be specifically described. In the center of the upper female mold 1, there is provided an injection hole 3 having a tapered hole 4 at the top and a right circular hole 5 at the bottom. A male mold 2 is arranged below the female mold 1. Both molds 1,
2 has water holes 6, 6... for circulating cooling water.
...is established.
成形材料（熱可塑性樹脂）ａはホツパー７を通
じて押出機８に入れられ、こゝで所定温度に加熱
された後前記注入孔３を通じて金型１，２内に移
入される。このとき雌雄金型１，２は第１図に示
す如く半開状態にセツトされている。又成形材料
ａは雌雄金型１，２の隙間から流出しない程度の
粘性を有するよう、温度調整されている。 The molding material (thermoplastic resin) a is put into an extruder 8 through a hopper 7, heated to a predetermined temperature, and then introduced into the molds 1 and 2 through the injection hole 3. At this time, the male and female molds 1 and 2 are set in a half-open state as shown in FIG. Further, the temperature of the molding material a is adjusted so that it has a viscosity that does not flow out from the gap between the male and female molds 1 and 2.
成形材料ａの移入操作が完了すると、押出機８
のノズル９が斜上方に後退して、前記注入孔３は
開放状態となる。その後すぐに、ストツパー装置
１０が作動し、第２図に示す如くその栓体１１に
よつて前記注入孔３を加圧状態の下で閉栓する。
前記栓体１１はテーパ部１２と直円柱部１３とを
有し、前記注入孔３に嵌合するように形成されて
いる。閉栓時には、第２図に示す如く栓体１１の
下面１４は雌金型１の内面１５に一致している。
尚、前記ストツパー装置１０は空圧シリンダー１
６（油圧シリンダーでもよい）を備えて、栓体１
１を自動的に上下動させることができるように構
成するとよい。又前記栓体１１内にも冷却水を循
環させるための通水孔１７を設けている。 When the transfer operation of molding material a is completed, the extruder 8
The nozzle 9 retreats obliquely upward, and the injection hole 3 becomes open. Immediately thereafter, the stopper device 10 is activated to close the injection hole 3 with its plug 11 under pressure, as shown in FIG.
The plug body 11 has a tapered portion 12 and a right circular column portion 13, and is formed to fit into the injection hole 3. When the stopper is closed, the lower surface 14 of the stopper 11 is aligned with the inner surface 15 of the female mold 1, as shown in FIG.
The stopper device 10 is a pneumatic cylinder 1.
6 (a hydraulic cylinder may be used), the plug body 1
1 may be configured to be able to move up and down automatically. Further, a water passage hole 17 for circulating cooling water is also provided in the plug body 11.
上述の如く閉栓した後、第３図に示す如くラム
１８延いては雄金型２を上方に移動させて両金型
１，２を緊締状態に閉じ、成形材料ａを圧縮成形
する。この際前記通水孔６，６…１７，１７…に
冷却水を循環させて成形材料ａを冷却硬化させ
る。又前記栓体１１は加圧状態の下で閉栓されて
いるので、金型１，２の緊締時においても、その
位置を保持する。 After the cap is closed as described above, the ram 18 and the male mold 2 are moved upward as shown in FIG. 3 to tightly close both the molds 1 and 2, and compression mold the molding material a. At this time, cooling water is circulated through the water holes 6, 6...17, 17... to cool and harden the molding material a. Further, since the plug body 11 is closed under pressure, it maintains its position even when the molds 1 and 2 are tightened.
以上熱可塑性樹脂の成形方法の説明であるが、
熱硬化性樹脂、ゴムの成形に当つては、前記冷却
手段に代えて適切な金型加熱手段を設ければよ
く、他の成形工程は上記実施例と同様である。 The above is an explanation of the method of molding thermoplastic resin.
When molding thermosetting resin or rubber, an appropriate mold heating means may be provided in place of the cooling means, and other molding steps are the same as in the above embodiments.
本発明は上記構成を有し、金型１，２の緊締時
に金型１の注入孔３を加圧状態の下で閉栓してい
るのでこの注入孔３に成形材料ａが逆流入するこ
とを阻止できる。このため、完成品にヘソ部分
（スプール部分）が生じず、仕上りが美しく、又
ヘソ切り作業が不要となり能率的に作業を進める
ことができる。又ヘソ部分を有しないので、従来
品の如くヘソ部分根元周辺に応力集中が生ずるの
を回避でき、均一な強度を有する完成品を得るこ
とができる。 The present invention has the above configuration, and since the injection hole 3 of the mold 1 is closed under pressure when the molds 1 and 2 are tightened, it is possible to prevent the molding material a from flowing back into the injection hole 3. It can be prevented. Therefore, there is no belly button part (spool part) in the finished product, the finish is beautiful, and there is no need to cut the belly button, making it possible to proceed with the work efficiently. Furthermore, since it does not have a navel part, it is possible to avoid stress concentration around the base of the navel part as in conventional products, and it is possible to obtain a finished product with uniform strength.
図面は本発明の実施例を示し、第１図乃至第３
図は本発明方法を順序に従つて示す概略図であ
る。
１，２……金型、３……注入孔、９……射出ノ
ズル、１１……栓体、ａ……成形材料。
The drawings show embodiments of the present invention, and FIGS.
The figure is a schematic diagram illustrating the method according to the invention in sequence. DESCRIPTION OF SYMBOLS 1, 2... Mold, 3... Injection hole, 9... Injection nozzle, 11... Plug, a... Molding material.
Claims (1)
定量の成形材料を移送した後、前記射出ノズルを
後退させて前記注入孔に栓体を挿入し、加圧状態
の下で前記栓体により閉栓すると共に金型を閉じ
て成形材料を圧縮し、且つ冷却又は加熱すること
を特徴とする合成樹脂又はゴムの成形方法。1. After a fixed amount of molding material is transferred into the mold through the injection hole by an injection nozzle, the injection nozzle is moved back, a plug is inserted into the injection hole, and the plug is closed with the plug under pressurized conditions. A method for molding synthetic resin or rubber, which comprises simultaneously closing a mold, compressing the molding material, and cooling or heating it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15109782A JPS5939511A (en) | 1982-08-30 | 1982-08-30 | Molding method of synthetic resin or rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15109782A JPS5939511A (en) | 1982-08-30 | 1982-08-30 | Molding method of synthetic resin or rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5939511A JPS5939511A (en) | 1984-03-03 |
| JPS6363370B2 true JPS6363370B2 (en) | 1988-12-07 |
Family
ID=15511266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15109782A Granted JPS5939511A (en) | 1982-08-30 | 1982-08-30 | Molding method of synthetic resin or rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430863U (en) * | 1990-07-04 | 1992-03-12 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3543357A1 (en) * | 1985-12-07 | 1987-06-11 | Bayer Ag | METHOD AND DEVICE FOR THE PRODUCTION OF CONTACT LENS BLANKS WITH FINALLY TRAINED REAR SURFACE GEOMETRIES |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289169A (en) * | 1976-01-22 | 1977-07-26 | Kishihiro Yamaoka | Method and device for compression molding plastic |
-
1982
- 1982-08-30 JP JP15109782A patent/JPS5939511A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289169A (en) * | 1976-01-22 | 1977-07-26 | Kishihiro Yamaoka | Method and device for compression molding plastic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430863U (en) * | 1990-07-04 | 1992-03-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5939511A (en) | 1984-03-03 |
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