JPH056099Y2 - - Google Patents
Info
- Publication number
- JPH056099Y2 JPH056099Y2 JP11329588U JP11329588U JPH056099Y2 JP H056099 Y2 JPH056099 Y2 JP H056099Y2 JP 11329588 U JP11329588 U JP 11329588U JP 11329588 U JP11329588 U JP 11329588U JP H056099 Y2 JPH056099 Y2 JP H056099Y2
- Authority
- JP
- Japan
- Prior art keywords
- runner
- mold
- hole
- resin
- center hole
- 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 - Lifetime
Links
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は、樹脂を金型内に射出して成形品を作
成する場合、金型内の樹脂の主通路とその分岐路
であるランナーとの間で、樹脂硬化後に容易に切
断できるようにしたランナーカツトブツシユに関
する。[Detailed explanation of the invention] "Industrial application field" This invention is based on the main path of the resin in the mold and the runner which is the branch path when injecting resin into a mold to create a molded product. The present invention relates to a runner cut button that can be easily cut after resin hardens.
「従来の技術」
金型内に樹脂を射出して成形品を作成する場
合、金型内に成形品用の多数の空胴を設け、主通
路から複数のランナーを介して各空胴に溶融樹脂
を供給するようにしている。そして金型内で樹脂
が硬化した後、ランナー部分あるいは空胴内の成
形品を押出しピンで押すことにより、成形品とラ
ンナーとの間を切断するとともに、成形品とラン
ナー部および主通路部を金型から取出すようにし
ている。なお、成形品用の空胴とランナーとの接
続部は、小径のゲートに形成され、樹脂硬化後
に、両者が容易に切断されるようになつていた。``Prior art'' When resin is injected into a mold to create a molded product, a number of cavities for the molded products are provided in the mold, and the resin is melted into each cavity from a main passage through multiple runners. We are trying to supply resin. After the resin has hardened in the mold, the runner part or the molded part in the cavity is pushed with an extrusion pin to cut the molded part and the runner, and to separate the molded part from the runner part and the main passage part. I'm trying to take it out of the mold. Note that the connection between the molded product cavity and the runner is formed by a small-diameter gate, so that the two can be easily cut off after the resin has hardened.
「考案が解決しようとする課題」
従来、樹脂成形品を金型内で射出成形する場
合、成品部分とランナー部分とは容易に切断でき
るようになつているが、ランナーと主通路との間
は何ら切断を容易にする手段がとられていない。
これは、切断を容易にするためには、金型内の切
断個所を小径のゲートに形成しなければならず、
そのための加工を金型内に形成するのは、加工手
数が多くなるためにその加工は省略されている。``Problem to be solved by the invention'' Conventionally, when injection molding a resin molded product in a mold, the product part and the runner part can be easily separated, but the gap between the runner and the main passage is No measures were taken to facilitate cutting.
This means that in order to facilitate cutting, the cutting point within the mold must be formed into a small diameter gate.
Forming the processing in the mold for this purpose is omitted because it increases the number of processing steps.
しかし、1つの金型内に多数の成品用空胴を作
成したりすると、ランナー部分、あるいは主通路
が長くなり、樹脂硬化後、金型から取出した連結
状態のランナー部や主通路部が大きくて、保管
や、粉砕処理に不都合が生ずることがあつた。 However, when creating a large number of product cavities in one mold, the runner part or main passage becomes long, and the runner part or main passage in the connected state taken out from the mold after the resin hardens becomes large. This sometimes caused inconveniences in storage and pulverization.
そこで本考案は、主通路から複数のランナーへ
の分岐通路を有する金型を容易に作成可能にし、
しかも主通路とランナーとの間を容易に切断でき
るようにすることを目的とする。 Therefore, the present invention makes it possible to easily create a mold having branch passages from a main passage to multiple runners.
Moreover, it is an object of the present invention to enable easy cutting between the main passage and the runner.
「課題を解決するための手段」
本考案は、成形用金型における樹脂の主通路か
ら複数個のランナーに分岐させる位置に設けるラ
ンナーブツシユである。このブツシユは筒形であ
つて、その中心孔の一端は樹脂の主通路に連通さ
れるとともに、他端は押出しピンの挿入が可能に
なつている。またブツシユには、その中心孔と各
ランナーとを連通する複数個の傾斜孔が設けら
れ、この傾斜孔はその中心孔側が押出しピン挿入
側に向うように傾斜される。傾斜孔は、中心孔側
が小径のテーパ孔に形成される。"Means for Solving the Problems" The present invention is a runner bush provided at a position where a main resin passage in a molding die branches into a plurality of runners. This bush has a cylindrical shape, and one end of the center hole communicates with the main passage of the resin, and the other end allows insertion of an extrusion pin. The bush is also provided with a plurality of slanted holes that communicate the center hole with each runner, and the slanted holes are slanted so that the center hole side faces the ejector pin insertion side. The inclined hole is formed into a tapered hole with a smaller diameter on the center hole side.
「作用」
上記手段のランナーカツトブツシユを、金型の
主通路とそれから分岐する複数のランナーとの接
続部に配置すれば、その部分の金型が完成し、そ
のブツシユを金型から取り外ずせば、別個の金型
にも組込むことも可能である。またブツシユに設
ける複数の傾斜孔は、押出しピン挿入側に向つて
傾斜されているので、ブツシユの中心孔に押出し
ピンが挿入されたときに、硬化樹脂のランナー部
はそれがブツシユの中心孔と接続する部分で容易
に亀裂が生じて切断され、硬化樹脂のランナー部
と主通路部とが切離される。"Operation" If the runner cut bush of the above means is placed at the connection between the main passage of the mold and the plurality of runners branching from it, the mold for that part is completed, and the bush is removed from the mold. Alternatively, it can also be incorporated into a separate mold. In addition, the plurality of inclined holes provided in the bushing are inclined toward the push-out pin insertion side, so when the push-out pin is inserted into the center hole of the bush, the runner part of the cured resin is aligned with the center hole of the bush. Cracks easily occur and are cut at the connecting portions, and the cured resin runner portion and the main passage portion are separated.
「実施例」
本考案の1実施例を第1,2図により説明す
る。"Embodiment" An embodiment of the present invention will be described with reference to FIGS. 1 and 2.
上金型1と下金型2とを重ね合せることにより
成形品用の空胴3が多数形成され、各空胴3はそ
れぞれ小径ゲート3aを介してランナー4に連通
される。ランナー4の他端は、下金型2の穴2a
に組込まれたランナーカツトブツシユ5に連通さ
れる。本実施例では、ランナーカツトブツシユ5
は、4方向のランナー4に連通され、各ランナー
4はそれぞれ別個の成形品用空胴3に連通され
る。 By overlapping the upper mold 1 and the lower mold 2, a large number of cavities 3 for molded products are formed, and each cavity 3 is communicated with a runner 4 via a small diameter gate 3a. The other end of the runner 4 is connected to the hole 2a of the lower mold 2.
It communicates with a runner cutout 5 built into the runner. In this embodiment, the runner cutout 5
are in communication with runners 4 in four directions, and each runner 4 is in communication with a separate molding cavity 3.
ランナーカツトブツシユ5の上方に、主通路部
材6が設けられ、その主通路6aから溶融状態の
樹脂が、ランナーカツトブツシユ5、各ランナー
4を介して各空胴3に供給されるようになつてい
る。 A main passage member 6 is provided above the runner cut bush 5, and molten resin is supplied from the main passage 6a to each cavity 3 via the runner cut bush 5 and each runner 4. It's summery.
また下金型2の適所、例えば空胴3やランナー
4の位置に下から押出しピン7が摺動可能に挿入
され、樹脂が金型内で硬化した後に、成形品ある
いはランナー部を金型から押出せるようになつて
いる。 In addition, an extrusion pin 7 is slidably inserted from below into a suitable position of the lower mold 2, such as the cavity 3 or runner 4, and after the resin has hardened in the mold, the molded product or runner part is removed from the mold. It is designed to be extruded.
ランナーカツトブツシユ5は筒形であつて、そ
の中心孔5aと外周位置の各ランナー4とを連通
する例えば4個の傾斜孔5bが設けられ、前記主
通路6aとランナー4とは、中心孔5aと傾斜孔
5bとを介して連通される。中心孔5aの下方側
から、押出しピン7aが挿入され、やはり樹脂が
硬化した後に、中心孔5a内の硬化部分を押出せ
るようになつている。傾斜孔5bは、中心孔5a
側が押出しピン7aの挿入側に向うように傾斜さ
れ、押出しピン7aを中心孔5aの上方に押込ん
だときに、傾斜孔5b部分の硬化樹脂と中心孔内
の硬化樹脂との間に亀裂が生じて、両者間が切断
される。また傾斜孔5bは外側より中心側が小径
のテーパ孔に形成され、前記、傾斜孔内の硬化樹
脂の亀裂を容易に生じさせられるようになつてい
る。またランナーカツトブツシユ5の押出しピン
挿入側の外周に鍔部5cが形成され、ランナーカ
ツトブツシユ5の金型内での位置決めが容易にさ
れている。 The runner cutout 5 has a cylindrical shape, and is provided with, for example, four inclined holes 5b that communicate between the center hole 5a and each runner 4 at the outer circumferential position, and the main passage 6a and the runners 4 are 5a and the inclined hole 5b. An extrusion pin 7a is inserted from the lower side of the center hole 5a, and after the resin has hardened, the hardened portion inside the center hole 5a can be extruded. The inclined hole 5b is the center hole 5a.
When the side of the push-out pin 7a is inclined toward the insertion side of the push-out pin 7a and the push-out pin 7a is pushed above the center hole 5a, a crack occurs between the cured resin in the inclined hole 5b portion and the cured resin in the center hole. As a result, the two are disconnected. Further, the inclined hole 5b is formed into a tapered hole having a smaller diameter on the center side than on the outside, so that cracks can easily occur in the cured resin inside the inclined hole. Further, a flange 5c is formed on the outer periphery of the push-out pin insertion side of the runner cutout 5 to facilitate positioning of the runner cutout 5 within the mold.
なお、前記金型は、熱可塑性樹脂の成形品を作
成するだけではなく、熱硬化性樹脂の成形品を作
成する場合にも適用できる。 Note that the mold can be used not only to create molded products of thermoplastic resin, but also to create molded products of thermosetting resin.
「考案の効果」
本考案のランナーカツトブツシユは、金型内に
おける樹脂の主通路と複数個のランナーとの接合
位置に組込むだけで、それらの連通を可能にし、
金型にはランナーカツトブツシユを組込む単純な
穴を形成するだけでよいので、金型の製作が容易
である。しかも成形品の異なる金型にも組込み可
能であるので、ランナーカツトブツシユの使用価
値は非常に高いものとなる。また、ランナーカツ
トブツシユの中心孔に、樹脂硬化後、押出しピン
を押込んだときには、ランナー部と主通路部とを
容易に切断でき、金型から押出したランナー部等
の保管、粉砕に都合がよい。``Effect of the invention'' The runner cutout of the invention enables communication between the main resin passage and multiple runners by simply incorporating them into the joint position within the mold.
The mold is easy to manufacture because it is only necessary to form a simple hole in the mold to incorporate the runner cutout. Moreover, since it can be incorporated into molds for different molded products, the value of the runner cutout is extremely high. In addition, when the extrusion pin is pushed into the center hole of the runner cutout after the resin has hardened, the runner part and the main passage part can be easily cut off, making it convenient for storing and crushing the runner part extruded from the mold. Good.
第1図は本考案のランナーカツトブツシユを組
込んだ金型の部分断面図、第2図はランナーカツ
トブツシユの上面図である。
1……上金型、2……下金型、3……空胴、4
……ランナー、5……ランナーカツトブツシユ、
5a……中心孔、5b……傾斜孔、5c……鍔、
6a……主通路、7……押出しピン。
FIG. 1 is a partial cross-sectional view of a mold incorporating a runner cutout according to the present invention, and FIG. 2 is a top view of the runner cutout. 1... Upper mold, 2... Lower mold, 3... Cavity, 4
...Runner, 5...Runner cuts,
5a...center hole, 5b...slanted hole, 5c...tsuba,
6a...main passage, 7...extrusion pin.
Claims (1)
のランナーに分岐させる分岐用ブツシユであつ
て、このブツシユは、中心孔を有する筒状に形
成されて、中心孔の一端は主通路に連通可能で
あるとともに他端は押出しピンの挿入が可能に
なつており、ブツシユにはその中心孔と各ラン
ナーとを連通する複数個の傾斜孔が設けられ、
この傾斜孔は、その中心孔側が押出しピン挿入
側に向うように傾斜されていることを特徴とす
るランナーカツトブツシユ。 (2) 傾斜孔は、中心孔側が小径のテーパ孔に形成
されていることを特徴とする請求項(1)のランナ
ーカツトブツシユ。[Claims for Utility Model Registration] (1) A branching bush for branching a resin main passage into a plurality of runners in a molding die, the bushing being formed in a cylindrical shape with a central hole, One end of the center hole can communicate with the main passage, and the other end allows insertion of an extrusion pin, and the bush is provided with a plurality of inclined holes that communicate the center hole with each runner.
The runner cutout is characterized in that the inclined hole is inclined so that the center hole side thereof faces toward the ejector pin insertion side. (2) The runner cutout according to claim 1, wherein the inclined hole is formed as a tapered hole having a small diameter on the center hole side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11329588U JPH056099Y2 (en) | 1988-08-31 | 1988-08-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11329588U JPH056099Y2 (en) | 1988-08-31 | 1988-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0236418U JPH0236418U (en) | 1990-03-09 |
JPH056099Y2 true JPH056099Y2 (en) | 1993-02-17 |
Family
ID=31353003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11329588U Expired - Lifetime JPH056099Y2 (en) | 1988-08-31 | 1988-08-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH056099Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112014001522B4 (en) | 2013-03-19 | 2020-01-09 | Denso Corporation | Thermal management system for vehicles |
-
1988
- 1988-08-31 JP JP11329588U patent/JPH056099Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112014001522B4 (en) | 2013-03-19 | 2020-01-09 | Denso Corporation | Thermal management system for vehicles |
Also Published As
Publication number | Publication date |
---|---|
JPH0236418U (en) | 1990-03-09 |
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