JPH03108521A - Taking off method for molded object - Google Patents
Taking off method for molded objectInfo
- Publication number
- JPH03108521A JPH03108521A JP24701289A JP24701289A JPH03108521A JP H03108521 A JPH03108521 A JP H03108521A JP 24701289 A JP24701289 A JP 24701289A JP 24701289 A JP24701289 A JP 24701289A JP H03108521 A JPH03108521 A JP H03108521A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- core
- molded product
- molded object
- curved
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000013011 mating Effects 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 2
- 238000010408 sweeping Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
- B29C45/2614—Moulds having tubular mould cavities for manufacturing bent tubular articles using an undercut forming mould core
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は成形品の取出し方法、特に円弧状に湾曲した成
形品を金型から取出す取出し方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for taking out a molded article, and particularly to a method for taking out an arcuately curved molded article from a mold.
（従来の技術）
金型から成形品を取出すときの従来技術として、例えば
第６図に示されるように、固定側金型１と可動側金型２
との間のキャビティ内に成形品３が形成されるが、この
成形品３の中央部下方にシリンダ４を配置し、離型時に
前記シリンダ４から連通孔５を介して空間部内に圧縮空
気を圧送することにより、金型から成形品３を取出す手
段が用いられていた。(Prior Art) As a conventional technique for taking out a molded product from a mold, for example, as shown in FIG. 6, a fixed mold 1 and a movable mold 2 are used.
A molded product 3 is formed in the cavity between the molded product 3, and a cylinder 4 is disposed below the center of the molded product 3, and compressed air is introduced into the space from the cylinder 4 through the communication hole 5 during mold release. A method of taking out the molded product 3 from the mold by pressure feeding was used.
（発明が解決しようとする諜Ｈ）
しかしながら、このような従来の手段では、例えば成形
品が雨樋の継手部に使用されるような円弧状に湾曲した
ものである場合には、その取出しが困難である等の課題
を有していた。(Intelligence to be Solved by the Invention) However, with such conventional means, for example, when the molded product is curved in an arc shape such as is used for a joint part of a rain gutter, it is difficult to take out the molded product. It had some challenges such as being difficult.
本発明は前記従来の課題に鑑みなされたもので、その目
的とするところは、円弧状に湾曲した形状の成形品を容
易に金型から取出すことのできる取出し方法を提供する
ことにある。The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a method for easily removing a molded product having an arcuate shape from a mold.
（課題を解決するための手段）
前記目的を達成するために、本発明は、円弧状に湾曲し
たコアを有する金型内に形成された成形品を外部に取出
すための成形品の取出し方法において、
金型合わせ面の近傍に設けたストリッパを型開き方向に
回動させる払いのけ手段を有し、型開きの際に前記コア
を可動側金型に固定した状態で、前記払いのけ手段によ
り成形品に付勢力を作用させ、成形品をコアの湾曲面に
沿い摺動させてコアから取り外すようにしたことを特徴
とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a method for taking out a molded product formed in a mold having an arcuate core. , comprising a stripper that rotates a stripper provided near the mold mating surface in the mold opening direction, and when the mold is opened, the stripper is moved while the core is fixed to the movable mold. The present invention is characterized in that a biasing force is applied to the molded product to cause the molded product to slide along the curved surface of the core and be removed from the core.
（作用）
前記構成により、本発明方法においては、型開き時また
は型開き後に、円弧状に湾曲したコアを可動側金型から
分離させることなく、そのまま固定した状態で払いのけ
手段の作用によって成形品をコアから取り外すことによ
り、円弧状に湾曲した円筒形状の成形品を簡単な金型構
造で取出せるようにしたものである。(Function) With the above configuration, in the method of the present invention, the arcuately curved core is not separated from the movable mold when the mold is opened or after the mold is opened, and is fixed as it is by the action of the sweeping means. By removing the molded product from the core, a cylindrical molded product curved into an arc can be taken out using a simple mold structure.
すなわち、前記払いのけ手段は、金型合わせ面の近傍に
設けたストリッパを型開き方向に回動させる構成を有し
ており、コアの周囲に形成された成形品に対し強制的に
付勢力を作用させて、この成形品をコアの湾曲面に沿い
摺動させ、これによってコアから容易に成形品を取り外
すことができるという利点を有している。In other words, the dispelling means has a structure in which a stripper provided near the mold mating surface is rotated in the mold opening direction, and forcibly applies an urging force to the molded product formed around the core. This has the advantage that the molded product can be easily removed from the core by sliding the molded product along the curved surface of the core.
（実施例）
以下、図面に基づき本発明の好ましい実施例を説明する
。(Example) Hereinafter, preferred examples of the present invention will be described based on the drawings.
第５図には金型からの取出し対象となる成形品１３の外
観が示されている。これは、例えば雨樋の継手部に使用
される樹脂成形品であり、円弧状に湾曲した円筒形状と
なっている。FIG. 5 shows the appearance of the molded product 13 to be removed from the mold. This is a resin molded product used, for example, in a joint part of a rain gutter, and has a cylindrical shape curved into an arc.
ここで、第１図および第２図には本発明の第１実施例が
示されている。Here, a first embodiment of the present invention is shown in FIGS. 1 and 2. FIG.
本発明の特徴的なことは、金型合わせ面の近傍に設けた
ストリッパを型開き方向に回動させる払いのけ手段を有
し、型開きの際に前記コアを可動側金型に固定した状態
で、前記払いのけ手段により成形品に付勢力を作用させ
、成形品をコアの湾曲面に沿い摺動させてコアから取り
外すようにしたことである。A characteristic feature of the present invention is that it has a stripping means for rotating a stripper provided near the mold mating surface in the mold opening direction, and the core is fixed to the movable mold when the mold is opened. In this state, a biasing force is applied to the molded product by the brushing means, and the molded product is slid along the curved surface of the core and removed from the core.
すなわち本実施例において、第１図に示されるように、
固定側金型１１と可動側金型１２とは閉じた状態にあり
、可動側金型１２にはコア１４が縦置き状に配置されて
いる。That is, in this example, as shown in FIG.
The fixed mold 11 and the movable mold 12 are in a closed state, and the movable mold 12 has a core 14 arranged vertically.
このコア１４は一端が大径の筒状部１４ａと、他端が前
記筒状部１４ａよりも小径で円弧状に湾曲した湾曲部１
４ｂを有し、これらは中間の円錐部１４ｃを介して一体
的に接続されている。そして、前記コア１４の湾曲部１
４ｂと固定側金型１１および可動側金型１２とによって
キャビティが形成され、このキャビティ内に成形品１３
が形成される。This core 14 has a cylindrical portion 14a having a large diameter at one end, and a curved portion 1 having a smaller diameter than the cylindrical portion 14a and curved into an arc shape at the other end.
4b, which are integrally connected via an intermediate conical portion 14c. Then, the curved portion 1 of the core 14
4b, the fixed mold 11, and the movable mold 12 form a cavity, and the molded product 13 is placed in this cavity.
is formed.
また、金型合わせ面の近傍の可動側金型１２には、一端
側の支点１８を中心として回動可能なストリッパプレー
ト１６が設けられており、このストリンパプレート１６
の他端側はエジェクタビン１５に連結されている。更に
、ストリッパブレート１６の中途部にはコア１４の円錐
部１４ｃに嵌合されるストリッパ孔１６ａが穿設されて
いる。なお、この実施例では、前記ストリンパプレート
１６と支点１８およびエジェクタピン１５とで払いのけ
手段が構成されている。Further, the movable mold 12 near the mold mating surface is provided with a stripper plate 16 that is rotatable about a fulcrum 18 at one end.
The other end side is connected to the ejector bin 15. Furthermore, a stripper hole 16a is bored in the middle of the stripper plate 16, and the stripper hole 16a is fitted into the conical portion 14c of the core 14. In this embodiment, the stripper plate 16, the fulcrum 18, and the ejector pin 15 constitute a sweeping means.
次に、本実施例による成形品の取出し方法について説明
する。Next, a method for taking out a molded article according to this embodiment will be explained.
第４図のように、型開きの後に成形機の突出しビン２０
が突出されると、エジェクタプレート１７が押し上げら
れ、同時にエジェクタビン１５も押し上げられる。この
ため、前記コア１４は可動側金型１２に固定されたまま
、ストリッパプレート１６はエジェクタピン１５の上昇
により支点１８を中心として型開き方向（矢印方向）に
回動する゛、この回動に伴い、ストリッパ孔１６ａの周
縁が成形品１３に強制的な付勢力を及ぼすこととなり、
このため成形品１３はコア１４の湾曲面に沿い摺動され
てコア１４から取り外される。As shown in Fig. 4, after opening the mold, the ejection bin 20 of the molding machine
When ejected, the ejector plate 17 is pushed up, and at the same time, the ejector bin 15 is also pushed up. Therefore, while the core 14 remains fixed to the movable mold 12, the stripper plate 16 rotates about the fulcrum 18 in the mold opening direction (arrow direction) due to the rise of the ejector pin 15. Accordingly, the periphery of the stripper hole 16a exerts a forced biasing force on the molded product 13,
Therefore, the molded product 13 is slid along the curved surface of the core 14 and removed from the core 14.
第３図および第４図には本発明の第２実施例が示されて
いる。A second embodiment of the invention is shown in FIGS. 3 and 4.
この実施例では、第３図に示されるように、ストリッパ
ブレーＨ６の他端側は作動ピン１９に連結され、この作
動ピン１９はスプリング（圧縮）２１により図面上方に
向は常時付勢された状態で保持されている。そして、こ
の実施例では、前記ストリッパプレート１６と支点１８
および作動ピン１９、スプリング２１とで払いのけ手段
が構成されている。In this embodiment, as shown in FIG. 3, the other end of the stripper brake H6 is connected to an operating pin 19, and this operating pin 19 is always urged upward in the drawing by a spring (compression) 21. maintained in the state. In this embodiment, the stripper plate 16 and the fulcrum 18
The actuating pin 19 and spring 21 constitute a dispelling means.
この実施例によれば、第４図に示されるように、型開き
と同時にスプリング２１の弾発力で作動ピン１９が図面
上方に押し出され、これに伴ってストリンパプレート１
６は支点１８を中心として型開き方向（矢印方向）に回
動する。このため、前述の実施例と同様に、成形品１３
はコア１４の湾曲面に沿い摺動されてコア１４から取り
外される。According to this embodiment, as shown in FIG. 4, the operating pin 19 is pushed upward in the drawing by the elastic force of the spring 21 at the same time as the mold is opened, and along with this, the stripper plate 1
6 rotates about the fulcrum 18 in the mold opening direction (in the direction of the arrow). Therefore, as in the above embodiment, the molded product 13
is removed from the core 14 by sliding along the curved surface of the core 14.
（発明の効果）
この発明は以上説明した通り、円弧状に湾曲したコアを
有する金型内に形成された成形品を外部に取出すための
成形品の取出し方法において、金型合わせ面の近傍に設
けたストリッパを型開き方向に回動させる払いのけ手段
を存し、型開きの際に前記コアを可動側金型に固定した
状態で、前記払いのけ手段により成形品に付勢力を作用
させ、成形品をコアの湾曲面に沿い摺動させてコアから
取り外すようにしたことにより、円弧状に湾曲した円筒
形状の成形品を簡単な金型構造で容易に取出すことがで
きる。(Effects of the Invention) As explained above, the present invention provides a molded product removal method for taking out a molded product formed in a mold having an arc-shaped core to the outside. A stripping means is provided for rotating the provided stripper in the mold opening direction, and when the mold is opened, the stripping means applies an urging force to the molded product while the core is fixed to the movable mold. By sliding the molded product along the curved surface of the core and removing it from the core, a cylindrical molded product curved in an arc can be easily taken out with a simple mold structure.
第１図は本発明方法を実施するための第１実施例を示す
金型の断正面図、第２図はその成形品取出し状態を示す
図、第３図は本発明の第２実施例を示す金型の断正面図
、第４図はその成形品取出し状態を示す図、第５図は本
発明の対象となる成形品の外観を示す図、第６図は従来
の金型の断正面図である。
１１・・・固定側金型 １２・・・可動側金型１３・
・・成形品 １４・・・コア１４ａ ・・・湾
曲部 １５・・・エジェクタビン１６・・・ストリッ
パプレート
１８・・・支点 １９・・・作動ピン２１・・・
スプリングFig. 1 is a cross-sectional front view of a mold showing a first embodiment for carrying out the method of the present invention, Fig. 2 is a view showing a state in which the molded product is taken out, and Fig. 3 is a diagram showing a second embodiment of the present invention. FIG. 4 is a diagram showing the state in which the molded product is taken out, FIG. 5 is a diagram showing the external appearance of the molded product to which the present invention is applied, and FIG. 6 is a cross-sectional view of the conventional mold. It is a diagram. 11... Fixed side mold 12... Movable side mold 13.
... Molded product 14 ... Core 14a ... Curved part 15 ... Ejector bin 16 ... Stripper plate 18 ... Fulcrum 19 ... Operating pin 21 ...
spring
Claims (1)
形品を外部に取出すための成形品の取出し方法において
、 金型合わせ面の近傍に設けたストリッパを型開き方向に
回動させる払いのけ手段を有し、型開きの際に前記コア
を可動側金型に固定した状態で、前記払いのけ手段によ
り成形品に付勢力を作用させ、成形品をコアの湾曲面に
沿い摺動させてコアから取り外すようにしたことを特徴
とする成形品の取出し方法。[Claims] In a molded product removal method for taking out a molded product formed in a mold having an arc-shaped core to the outside, a stripper provided near a mold mating surface is moved in the mold opening direction. When opening the mold, with the core fixed to the movable mold, the brushing means applies a biasing force to the molded product, causing the molded product to move around the core. A method for removing a molded product, characterized in that the molded product is removed from the core by sliding it along a curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247012A JP2617359B2 (en) | 1989-09-22 | 1989-09-22 | How to remove molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247012A JP2617359B2 (en) | 1989-09-22 | 1989-09-22 | How to remove molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03108521A true JPH03108521A (en) | 1991-05-08 |
| JP2617359B2 JP2617359B2 (en) | 1997-06-04 |
Family
ID=17157082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1247012A Expired - Lifetime JP2617359B2 (en) | 1989-09-22 | 1989-09-22 | How to remove molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2617359B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012165414A1 (en) * | 2011-05-31 | 2012-12-06 | 株式会社 旭 | Molding device and method for manufacturing molded product |
| JP2013526409A (en) * | 2010-05-11 | 2013-06-24 | スネクマ | Tools for injection molding parts |
| CN104960154A (en) * | 2015-07-14 | 2015-10-07 | 季音 | Injection mold of large-angle arc circular pipe |
| CN104972675A (en) * | 2015-06-02 | 2015-10-14 | 机械科学研究总院先进制造技术研究中心 | Synchronous ejection method of formed part made from composite materials |
| CN107949445A (en) * | 2015-06-12 | 2018-04-20 | 大丰工业株式会社 | The manufacture method of building mortion and molded article |
| CN113560489A (en) * | 2021-06-15 | 2021-10-29 | 季华实验室 | Turbine blade wax pattern ejection mechanism and mold |
| CN115570752A (en) * | 2022-10-20 | 2023-01-06 | 南通恒益电子有限公司 | Pipe fitting injection mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5379864U (en) * | 1977-11-11 | 1978-07-03 | ||
| JPS53117572U (en) * | 1978-02-17 | 1978-09-19 |
-
1989
- 1989-09-22 JP JP1247012A patent/JP2617359B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5379864U (en) * | 1977-11-11 | 1978-07-03 | ||
| JPS53117572U (en) * | 1978-02-17 | 1978-09-19 |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130103340A (en) * | 2010-05-11 | 2013-09-23 | 에스엔이씨엠에이 | Tooling for injection-molding a part |
| JP2013526409A (en) * | 2010-05-11 | 2013-06-24 | スネクマ | Tools for injection molding parts |
| JPWO2012165414A1 (en) * | 2011-05-31 | 2015-02-23 | 株式会社 旭 | Molding apparatus and method for manufacturing molded product |
| EP2716427A1 (en) * | 2011-05-31 | 2014-04-09 | Taiho Kogyo Co., Ltd. | Molding device and method for manufacturing molded product |
| CN103842141A (en) * | 2011-05-31 | 2014-06-04 | 大丰工业株式会社 | Molding device and method for manufacturing molded product |
| EP2716427A4 (en) * | 2011-05-31 | 2014-11-12 | Taiho Kogyo Co Ltd | Molding device and method for manufacturing molded product |
| WO2012165414A1 (en) * | 2011-05-31 | 2012-12-06 | 株式会社 旭 | Molding device and method for manufacturing molded product |
| US9266271B2 (en) | 2011-05-31 | 2016-02-23 | Taiho Kogyo Co., Ltd. | Molding device and method of manufacturing molded product |
| CN104972675A (en) * | 2015-06-02 | 2015-10-14 | 机械科学研究总院先进制造技术研究中心 | Synchronous ejection method of formed part made from composite materials |
| CN107949445A (en) * | 2015-06-12 | 2018-04-20 | 大丰工业株式会社 | The manufacture method of building mortion and molded article |
| CN104960154A (en) * | 2015-07-14 | 2015-10-07 | 季音 | Injection mold of large-angle arc circular pipe |
| CN113560489A (en) * | 2021-06-15 | 2021-10-29 | 季华实验室 | Turbine blade wax pattern ejection mechanism and mold |
| CN115570752A (en) * | 2022-10-20 | 2023-01-06 | 南通恒益电子有限公司 | Pipe fitting injection mold |
| CN115570752B (en) * | 2022-10-20 | 2023-10-27 | 南通恒益电子有限公司 | Pipe fitting injection mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2617359B2 (en) | 1997-06-04 |
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