JPS61254308A - Molding die - Google Patents

Molding die

Info

Publication number
JPS61254308A
JPS61254308A JP9627785A JP9627785A JPS61254308A JP S61254308 A JPS61254308 A JP S61254308A JP 9627785 A JP9627785 A JP 9627785A JP 9627785 A JP9627785 A JP 9627785A JP S61254308 A JPS61254308 A JP S61254308A
Authority
JP
Japan
Prior art keywords
slide core
mold
shape memory
memory alloy
spring
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
Application number
JP9627785A
Other languages
Japanese (ja)
Inventor
Koichiro Arita
有田　恒一郎
Kyoichi Nemoto
根本　強一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP9627785A priority Critical patent/JPS61254308A/en
Publication of JPS61254308A publication Critical patent/JPS61254308A/en
Pending legal-status Critical Current

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
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives therefor
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0033—Moulds or cores; Details thereof or accessories therefor constructed for making articles provided with holes
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a molding die having a sliding mechanism, the structure of which is simple and the cost of which is favorable, by a structure wherein a slide core, which is connected with a driving means consisting of a shape memory alloy, and a heating means to heat the driving means are provided. CONSTITUTION:Molding is done by pouring synthetic resin 17 in a cavity 16, which is formed by a top force 10, a bottom force 11 and a slide core 13 con nected with a spring made of shape memory alloy. In addition, a cylindrical heater 21 is arranged outside the spring 20. According to structure as mentioned above, the slide core 13 is shifted with the shape memory alloy spring 20 by heating the spring 20 with a heater 21 after the opening actions of the top force 10 and of a front force 12. Thus, the driving mechanism consisting of a simple structure for the slide core 13 is obtained. The number of parts of the resultant driving mechanism is small and its structure is simple.

Description

【発明の詳細な説明】 に産業上の利用分野】 本発明は成形用金型に係り、とくに内部にキャビティを
形成し、このキャビティに溶融した合成樹脂を注入して
成形を行なうようにした成形用金型に関する。[Detailed Description of the Invention] Field of Industrial Application] The present invention relates to a mold for molding, and in particular to a mold for molding, in which a cavity is formed inside and a molten synthetic resin is injected into the cavity to perform molding. Regarding molds for use.

に発明の概要】 本発明は、主たる金型の開閉方向と異なる方向に移動さ
れるスライドコアを有する成形用金型において、このス
ライドコアを形状記憶合金から成る駆動手段と連結し、
しかもこの駆動手段を加熱するための加熱手段を設ける
ようにし、金型を開く際に上記加熱手段によって形状記
憶合金から成る駆動手段を加熱し、これによってスライ
ドコアを主たる金型の開閉方向と異なる方向に移動させ
て成形体から分離するようにしたものであって、簡単な
構造によってスライドコアを容易に移動するようにした
ものである。SUMMARY OF THE INVENTION The present invention provides a molding mold having a slide core that is moved in a direction different from the opening and closing direction of the main mold, in which the slide core is connected to a driving means made of a shape memory alloy,
Moreover, a heating means is provided for heating this driving means, and when the mold is opened, the driving means made of a shape memory alloy is heated by the heating means, thereby moving the slide core in a direction different from the main opening/closing direction of the mold. The slide core is separated from the molded body by moving in the same direction, and has a simple structure that allows the slide core to be easily moved.

に従来の技術】 合成樹脂によって各種の形状の成形体を成形する場合に
、従来より一般に成形用金型が使用されている。そして
この成形用金型によって成形される成形体の形状がより
複雑になると、これに応じて主たる金型と異なる方向に
移動されるスライドコアが必要になる。このようなスラ
イドコアは、主たる金型が開かれるときに、スライド機
構によって移動されるようになっており、これによって
成形体から分離されることになる。2. Description of the Related Art Conventionally, molding molds have been generally used when molding articles of various shapes from synthetic resins. As the shape of the molded article molded by this molding die becomes more complex, a slide core that moves in a direction different from that of the main die becomes necessary. Such a slide core is moved by a slide mechanism when the main mold is opened, and is thereby separated from the molded body.

Ｋ発明が解決しようとする問題点】 ところがこのような従来の成形用金型においては、スラ
イドコアのためのスライド機構が複雑になり、これによ
プてコストが増大する欠点があった。従ってこのような
スライド機構は、低コストでかつ納期の短い金型には応
用しにくく、また成形品の取り数の少ない金型に用いる
のには適していなかった。このような低コストの金型、
あるいは納期が短い金型、または取り数の少ない金型に
おいては、置きゴマと称するスライドコアを用いるよう
にし、型を開く際にこの置きゴマを人間の手で取除くよ
うにしていた。[Problems to be Solved by the Invention] However, such conventional molding molds have the drawback that the slide mechanism for the slide core is complicated, which increases costs. Therefore, such a slide mechanism is difficult to apply to molds that are low cost and have a short delivery time, and is not suitable for use in molds that have a small number of molded products. Such low cost molds,
Alternatively, for molds with short delivery times or molds with a small number of molds, a slide core called a holder was used, and the holder was removed manually when the mold was opened.

本発明はこのような問題点に鑑みてなされたものであっ
て、複雑な構造を有することなく容易にスライドコアを
スライドさせることができるようにするとともに、低コ
ストの金型や納期が短い金型、あるいはまた取り数の少
ない金型にも応用可能なスライドコアを有する成形用金
型を提供することを目的とするものである。The present invention has been made in view of these problems, and makes it possible to easily slide the slide core without having a complicated structure, as well as to make it possible to use low-cost molds and metal molds with short delivery times. It is an object of the present invention to provide a molding die having a slide core that can be applied to molds or molds with a small number of cavities.

Ｋ問題点を解決するための手段】 本発明は、内部にキャビティを形成し、このキャビティ
に溶融した合成樹脂を注入して成形を行なうようにした
金型において、主たる金型の開閉方向と異なる方向に移
動されるスライドコアを有するとともに、このスライド
コアを形状記憶合金から成る駆動手段と連結し、しかも
この駆動手段を加熱するための加熱手段を設けるように
したものである。Means for Solving Problem K] The present invention provides a mold in which a cavity is formed inside and a molten synthetic resin is injected into the cavity to perform molding. The device has a slide core that is moved in the direction, and this slide core is connected to a drive means made of a shape memory alloy, and furthermore, a heating means is provided for heating the drive means.

Ｋ作用】 従って本発明によれば、成形体を取出すために金型を開
く際に、加熱手段によって駆動手段を加熱することによ
り、この形状記憶合金から成る駆動手段がスライドコア
を移動させることになり、自動的にスライドコアが開か
れるように移動することになる。K effect] Therefore, according to the present invention, when the mold is opened to take out the molded object, by heating the driving means with the heating means, the driving means made of the shape memory alloy moves the slide core. The slide core will automatically move to open.

Ｋ実施例】 以下本発明を図示の一実施例につき説明する。K Example] The present invention will be explained below with reference to an illustrated embodiment.

第２図は本考案の一実施例に係る成形用金型を示すもの
であって、この金型は上型１０、下型１１、および前型
１２から構成されている。さらにこの金型はスライドコ
ア１３を備えるようになっており、このスライドコア１
３にはざらに突部１４が一体に形成されている。この突
部１４によって後述する窓をキャビネットに形成するよ
うにしている。また上記下型１１には取外し用ビン１５
が摺動可能に保持されている。FIG. 2 shows a molding die according to an embodiment of the present invention, and this die is composed of an upper die 10, a lower die 11, and a front die 12. Furthermore, this mold is equipped with a slide core 13, and this slide core 1
3 has a rough projection 14 integrally formed therein. This protrusion 14 forms a window, which will be described later, in the cabinet. In addition, the lower mold 11 has a removable bottle 15.
is slidably held.

上記上型１０、下型１１、およびスライドコア１３によ
ってキャビティ１６が形成されるようになっており、こ
のキャビティ１６内に合成樹脂１７を注入して成形を行
なうようになっている。さらに上記スライドコア１３は
、形状記憶合金から成るばね２０と連結されるようにな
っており、しかもこのばね２０の外側には円筒状をなす
ヒータ２１が配列されている。A cavity 16 is formed by the upper mold 10, lower mold 11, and slide core 13, and a synthetic resin 17 is injected into the cavity 16 to perform molding. Further, the slide core 13 is connected to a spring 20 made of a shape memory alloy, and cylindrical heaters 21 are arranged on the outside of the spring 20.

以上にような構成において、第１図に示す金型のキャビ
ティ１６内に溶融された合成樹脂を注入して固化させる
。そしてこの後に第１図に示すように金型を開く。すな
わち上型１０および前型１２をそれぞれ上方へ移動する
。ついでヒータ２１に通電を行なって形状記憶合金から
成るばね２０をその変態点温度まで加熱する。この熱に
よって形状記憶合金２０が収縮するように変形するため
に、スライドコア１３は第１図において右方へ移動する
ことになり、突部１４はキャビネット１８から分離され
る。この後に下型１１に対して相対的に上方へビン１５
を移動させる。するとこの下型１１からキャビネット１
８が分離されるようになる。このキャビネット１８は第
３図に示すように、スライドコア１３の突部１４によっ
て′Ｍ１９が形成されることになる。In the above structure, molten synthetic resin is injected into the cavity 16 of the mold shown in FIG. 1 and solidified. After this, the mold is opened as shown in FIG. That is, the upper mold 10 and the front mold 12 are each moved upward. Next, the heater 21 is energized to heat the spring 20 made of a shape memory alloy to its transformation point temperature. This heat causes the shape memory alloy 20 to contract and deform, causing the slide core 13 to move to the right in FIG. 1, and the protrusion 14 to be separated from the cabinet 18. After this, the bin 15 is moved upward relative to the lower mold 11.
move. Then, from this lower mold 11, cabinet 1
8 will be separated. As shown in FIG. 3, this cabinet 18 has a 'M19 formed by the protrusion 14 of the slide core 13.

以上にように本実施例に係る成形用金型によれば、上型
１０および前型１２をそれぞれ開く際に、この動作に続
いて、形状記憶合金製のばね２０を用い、ヒータ２１に
よって加熱することによりスライドコア１３を移動させ
るようにしている。従って非常に簡単な構成からなるス
ライドコア１３の駆動機構が得られるようになり、部品
点数が少なく、しかも構造の簡単な駆動機構になる。ま
たこのようなスライドコア１３のスライドのための機構
を設けることによって、人間がこのスライドコア１３を
引出す動作を行なう必要がなくなる。As described above, according to the molding die according to this embodiment, when opening the upper mold 10 and the front mold 12, following this operation, the spring 20 made of shape memory alloy is used and heated by the heater 21. By doing so, the slide core 13 is moved. Therefore, it is possible to obtain a drive mechanism for the slide core 13 that has a very simple configuration, has a small number of parts, and has a simple structure. Furthermore, by providing such a mechanism for sliding the slide core 13, there is no need for a person to pull out the slide core 13.

なおこのスライドコア１３を開く方向と逆方向に移動さ
せて、第２図に示すようなキャピテイ１６を形成する場
合には、前型１２を下降させればよい。するとこの前型
１２の傾斜面２２とスライドコア１３の傾斜面２３との
間のカム作用によって、このスライドコア１３が第１図
において左方へ移動し、閉じられることになる。Note that when the slide core 13 is moved in the opposite direction to the opening direction to form the cavity 16 as shown in FIG. 2, the front mold 12 may be lowered. Then, due to the cam action between the inclined surface 22 of the front mold 12 and the inclined surface 23 of the slide core 13, the slide core 13 moves to the left in FIG. 1 and is closed.

Ｋ発明の概要】 以上にように本発明は、主たる金型の開閉方向と異なる
方向に移動されるスライドコアを有するとともに、この
スライドコアを形状記憶合金から成る駆動手段と連結し
、しかもこの駆動手段を加熱するための加熱手段を設け
るようにしたものである。従って加熱手段によって形状
記憶合金から成る駆動手段を加熱することにより、スラ
イドコアを移動させることが可能になる。従って構造が
簡単でしかもコスト的にも有利なスライド機構を有する
成形用金型が得られることになり、スライドコアを手で
開く必要がな（なる。[Summary of the Invention] As described above, the present invention has a slide core that is moved in a direction different from the opening/closing direction of the main mold, and also connects this slide core with a drive means made of a shape memory alloy, and furthermore, this drive A heating means is provided for heating the means. Therefore, by heating the drive means made of a shape memory alloy by the heating means, it becomes possible to move the slide core. Therefore, it is possible to obtain a molding die having a slide mechanism that is simple in structure and advantageous in terms of cost, and there is no need to manually open the slide core.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例に係る成形用金型の開かれた
状態の断面図、第２図は同閉じられた状態の断面図、第
３図はこの金型によって成形されたキャビネットの外観
斜視図である。 なお図面に用いた符号において、 １０・・・上型 １１・・・下型 １２・・・前型 １３・・・スライドコア １４・・・突部 １６・・・キャビティ １７・・・合成樹脂 ２０・・・形状記憶合金製ばね ２１・・・ヒータ である。Fig. 1 is a sectional view of a molding die according to an embodiment of the present invention in an open state, Fig. 2 is a sectional view of the same in a closed state, and Fig. 3 is a cabinet formed by this mold. FIG. In addition, in the symbols used in the drawings, 10... Upper die 11... Lower die 12... Front die 13... Slide core 14... Projection 16... Cavity 17... Synthetic resin 20. ... Shape memory alloy spring 21 ... is a heater.

Claims (1)

【特許請求の範囲】[Claims] 内部にキャビティを形成し、このキャビティに溶融した
合成樹脂を注入して成形を行なうようにした金型におい
て、主たる金型の開閉方向と異なる方向に移動されるス
ライドコアを有するとともに、このスライドコアを形状
記憶合金から成る駆動手段と連結し、しかもこの駆動手
段を加熱するための加熱手段を設けるようにしたことを
特徴とする成形用金型。A mold in which a cavity is formed inside and a molten synthetic resin is injected into the cavity to perform molding, and the mold has a slide core that is moved in a direction different from the opening/closing direction of the main mold. A molding die, characterized in that the molding die is connected to a driving means made of a shape memory alloy, and is further provided with a heating means for heating the driving means.
JP9627785A 1985-05-07 1985-05-07 Molding die Pending JPS61254308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9627785A JPS61254308A (en) 1985-05-07 1985-05-07 Molding die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9627785A JPS61254308A (en) 1985-05-07 1985-05-07 Molding die

Publications (1)

Publication Number Publication Date
JPS61254308A true JPS61254308A (en) 1986-11-12

Family

ID=14160634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9627785A Pending JPS61254308A (en) 1985-05-07 1985-05-07 Molding die

Country Status (1)

Country Link
JP (1) JPS61254308A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204127A (en) * 1991-05-10 1993-04-20 Composite Products, Inc. Compression molding apparatus
TWI552854B (en) * 2013-10-01 2016-10-11 Ykk Corp A manufacturing method of a molded article, a molding die and a molded article thereof
CN110757742A (en) * 2019-11-04 2020-02-07 广东博智林机器人有限公司 Moving die driving device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204127A (en) * 1991-05-10 1993-04-20 Composite Products, Inc. Compression molding apparatus
TWI552854B (en) * 2013-10-01 2016-10-11 Ykk Corp A manufacturing method of a molded article, a molding die and a molded article thereof
CN110757742A (en) * 2019-11-04 2020-02-07 广东博智林机器人有限公司 Moving die driving device
CN110757742B (en) * 2019-11-04 2021-07-13 广东博智林机器人有限公司 Moving die driving device

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