WO1988000122A1 - Mechanism for uniforming temperature of mold for double injection in mold device for double injection molding - Google Patents

Mechanism for uniforming temperature of mold for double injection in mold device for double injection molding Download PDF

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Publication number
WO1988000122A1
WO1988000122A1 PCT/JP1987/000091 JP8700091W WO8800122A1 WO 1988000122 A1 WO1988000122 A1 WO 1988000122A1 JP 8700091 W JP8700091 W JP 8700091W WO 8800122 A1 WO8800122 A1 WO 8800122A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
double injection
cylindrical
double
injection molding
Prior art date
Application number
PCT/JP1987/000091
Other languages
French (fr)
Japanese (ja)
Inventor
Shozo Oka
Original Assignee
Meiseikinzokukogyosho Co., Ltd
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 Meiseikinzokukogyosho Co., Ltd filed Critical Meiseikinzokukogyosho Co., Ltd
Publication of WO1988000122A1 publication Critical patent/WO1988000122A1/en

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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
    • B29C45/73—Heating or cooling of the mould
    • 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
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • 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
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities
    • 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
    • B29C45/73—Heating or cooling of the mould
    • B29C2045/7368—Heating or cooling of the mould combining a heating or cooling fluid and non-fluid means

Definitions

  • the present invention is slidable at the center of one of a pair of movable-side and fixed-side cavities, which are symmetrically mounted on a mold apparatus for double-sided injection molding.
  • a double-sided mold temperature equalizer in a double-sided injection mold apparatus having a structure in which an extension nozzle having a cylindrical cooling water circulation tube arranged on the outermost periphery is fitted and fitted. -Structure.
  • the present invention is applied to both sides of the manifold located on the vertical symmetry axis.
  • a double-sided injection molding sandwiched between a pair of movable-side cavity plates and a fixed-side cavity plate is used.
  • a cylindrical electric heater is mounted on the surface of the outer cylinder into which a cylindrical core that can slide freely (on the center) can be inserted, and the entire circumference of the cylindrical electric heater is
  • An air-insulating section that maintains a proper interval (eg, about lm / m) is formed, and furthermore, an extension nozzle formed by arranging the same cooling water circulation tube on the outermost periphery is fitted through the nozzle.
  • the structure is simple, the structure is simple, and the cooling water and air insulation layer are excellent in thermal insulation, and the effect is enormous.
  • the combination of cavity plate and various sensors Therefore, it is also possible to control the mold temperature with finer texture, and the structure will be simpler.
  • the price is low and the general-purpose general-purpose work stack is easy to use in terms of practical use, improving productivity, reducing costs, streamlining production, and so on. ⁇ Practical effects such as 'measurable'.
  • FIG. 1 is a cross-sectional front view of the preferred embodiment of the double-sided injection molding die apparatus, in which the part is omitted, and FIGS. 2 to 4 are essential parts of the preferred double-sided injection molding die apparatus.
  • Fig. 2 shows the mold closed state
  • Fig. 3 shows the partially opened mold state
  • Fig. 4 shows the fully opened mold state
  • Figs. 5 to 7 show this preferred side.
  • Fig. 5 is an enlarged view of the pp cross section in Fig. 1
  • Fig. 6 is an outer cylinder
  • Fig. 7 is a cylindrical body.
  • the cross-sections of the core are partially omitted.
  • Fig. 1 shows a preferred double-sided injection molding apparatus according to the invention.
  • the mold apparatus according to the present invention is capable of maintaining the mold temperature of both cavity plates arranged one by one on the right and left sides, respectively, in the double injection molding industry. It is said that it is possible to achieve uniform production, and it has great special effects * that could not be considered in this kind of industry at all.
  • the value of industrial use is immeasurable, such as improvement, cost reduction, rationalization of production, etc.

Abstract

Mechanism for uniforming temperature of a mold for double injection in a mold device for double injection molding, wherein an extended nozzle is inserted to be fitted to the central part of a pair of movable side cavity plates or that of stationary side cavity plates from both sides of a manifold located on a vertical axis of symmetry; having such a mechanism that cylindrical electric heaters being attached to the surface of an outer cylinder having a slidable cylindrical core inserted therein, on the other hand, air insulation parts spaced at appropriate intervals being formed all over the circumference of said cylindrical electric heaters, further, a cylindrical cooling-water circulating cylinder being disposed on the outermost circumference. Accordingly, influence caused by radiant heat of a heater for heating molten resin is completely, thermally insulated by means of the cooling-water circulating cylinder and air insulation layers, resulting in an extremely small temperature difference between both cavity plates, leading to molded products of high quality.

Description

明 細 害  Harm
発 明 の 名 称  Name of the invention
両面射出成型用金型装置に於ける両面用金型温度均一化構造 技 術 分 野  Temperature uniform structure for double-sided mold in double-sided injection mold equipment
この発明は、 両面射出成型用金型装置に対称的に装着されてぃ る夫々 1 対の可動側キャ ビティ プレー ト · 固定側キャ ビティ プレ ー トの一方の中心部に於て、 滑動自在なる筒体状中子を嵌挿せる 外筒の表面に、 筒体状電熱ヒーターを装着せしめるー方、 該筒体 伏電熱ヒーターの全周に亘り、 適当なる間隔を維持せる空気断熱 部を形成すると共に、 更に、 最外周に円筒状冷却水循環筒を配し て成る延長ノ ズルを貫通して嵌着せしめた構造を成せる、 両面射 出成型用金型装置に於ける、 両面用金型温度均ー化構造。  The present invention is slidable at the center of one of a pair of movable-side and fixed-side cavities, which are symmetrically mounted on a mold apparatus for double-sided injection molding. A method of mounting a cylindrical electric heater on the surface of the outer cylinder into which the cylindrical core can be inserted, and forming an air heat insulating portion that maintains an appropriate interval over the entire circumference of the cylindrical electric heater. In addition, a double-sided mold temperature equalizer in a double-sided injection mold apparatus having a structure in which an extension nozzle having a cylindrical cooling water circulation tube arranged on the outermost periphery is fitted and fitted. -Structure.
背 景 技 術  Background technology
今日、 成型業界に於て最も多 く 使用されてぃる汎用ィ ンジヱ ク シ ョ ン用スタ ツ クモール ド金型の構造は、 両側にパーティ ングを 有するー対のキャ ビティ プレー ト と、 その中心部に両面用キャ ビ ティ に溶融樹脂の射出を可能とする、 射出ブロ ッ クを備ぇたもの がー般的と云ぇるが、 斯る構造に於ては成型作業中、 射出ブロ ッ クに至る延長湯道（即ち延長ノ ズル）内の溶融樹脂を保温する為の 加熱ヒーターに因る輻射熱が、 一方のみのキャ ビティ プレー トに 熱影響を与ぇる事となり、 之が構成要素の金型構成金属に膨張差 を与ぇるに至り、 桔果的には、 均一なる成型製品が得られなく な ると云ぅ、 重大なる欠点が存在するのでぁった。  Today, the most commonly used stack molding dies for the general purpose industry in the molding industry consist of a pair of cavity plates with a partitioning on both sides. In general, it is common to provide an injection block in the center to allow injection of molten resin into a double-sided cavity. However, such a structure requires an injection block during molding. The radiant heat generated by the heater to keep the molten resin in the extended runner (that is, the extended nozzle) leading to the heat has a thermal effect on only one of the cavity plates. Since a difference in expansion was given to the metal constituting the mold of the element, there was a serious drawback that a uniform molded product could not be obtained.
発 明 の 開 示  Disclosure of the invention
即ち本発明は、 鉛直対称軸上に位置せるマニホール ドの両側ょ り、 夫々 1 対の可勖側キャ ビティ プレー ト · 固定側キャビティ プ レー トにて挟着して成る両面射出成型甩金型装霰の一方の該、 キ ャ ビティ プレー ト中心部に於て、 滑動（中心部上にて）自在なる筒 体状中子を嵌挿せる外筒表面に、 筒体状電煞ヒーターを装着せし める一方、 該筒体状電熱ヒーターの全周に亘り、通当なる間隔（例 ぇば l m/m位）を維持せる空気断熱部を形成すると共に、 更に、 最 外周に同筒状冷却水循環筒を配して成る延長ノ ズルを貫通して嵌 着せしめた構造と成ってぃる為、 構造至簡且っ、 冷却水及び空気 断熱層に依り熱絶緣抜群にて、 其の効果甚大なる ものが有り、 更 にキャビティ プレー トと各種センサーとの組合に依り、 肌理の細 かぃ金型温度コ ン トロールも可能と成り、 然も構造至簡なる事か ら、 価格は低廉其のものにして、 実用面でもー般橫型汎用ィ ンジ ヱク ショ ン スタ ッ クモール化容易にして、 生産性向上、 コス ト ダゥ ン、 生産の合理化、 ··· ·· '等実用的効果は測り知れなぃものが ぁる。 In other words, the present invention is applied to both sides of the manifold located on the vertical symmetry axis. In each case, a double-sided injection molding sandwiched between a pair of movable-side cavity plates and a fixed-side cavity plate is used. A cylindrical electric heater is mounted on the surface of the outer cylinder into which a cylindrical core that can slide freely (on the center) can be inserted, and the entire circumference of the cylindrical electric heater is An air-insulating section that maintains a proper interval (eg, about lm / m) is formed, and furthermore, an extension nozzle formed by arranging the same cooling water circulation tube on the outermost periphery is fitted through the nozzle. The structure is simple, the structure is simple, and the cooling water and air insulation layer are excellent in thermal insulation, and the effect is enormous. In addition, the combination of cavity plate and various sensors Therefore, it is also possible to control the mold temperature with finer texture, and the structure will be simpler. In addition, the price is low and the general-purpose general-purpose work stack is easy to use in terms of practical use, improving productivity, reducing costs, streamlining production, and so on. ··· Practical effects such as 'measurable'.
図 面 の 簡 単 な 説 明  Brief explanation of drawings
第 1 図はこの発明に斯る好ま しぃ、 両面射出成型用金型装置の —部を省略せる断面正面図、 第 2図〜第 4図はこの好ましぃ両面 射出成型用金型装置の要部図にして、 第 2図は型締め状態、 第 3 図は一部型開状態、 第 4図は完全型開状態を夫々示してぉり、 第 5図〜第 7図はこの好ま しぃ両面射出成型用金型装置の延長ノ ズ ルの要部図にして、 第 5図は第 1図中に於ける p—p断面拡大図、 第 6図は外筒、 第 7図は筒体状中子にして夫々一部省略要部断面 図を示したものでぁる。  FIG. 1 is a cross-sectional front view of the preferred embodiment of the double-sided injection molding die apparatus, in which the part is omitted, and FIGS. 2 to 4 are essential parts of the preferred double-sided injection molding die apparatus. Fig. 2 shows the mold closed state, Fig. 3 shows the partially opened mold state, Fig. 4 shows the fully opened mold state, and Figs. 5 to 7 show this preferred side. Fig. 5 is an enlarged view of the pp cross section in Fig. 1, Fig. 6 is an outer cylinder, and Fig. 7 is a cylindrical body. The cross-sections of the core are partially omitted.
発明を実施する為の最良の形態 本発明をょり詳細に説述する為に以下添付図面に従ってこれを 説明する。 BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in more detail with reference to the accompanying drawings.
第 1 図は之の発明に斯る好ま しぃ両面射出成型用金型装置  Fig. 1 shows a preferred double-sided injection molding apparatus according to the invention.
• M · A )のー部省略の断面正面図でぁるが、 鉛直方向対称軸（Y 一 Y)上に位置せるマニホール ド CM · H )の両側ょり、 夫々 1対 の可動側キャ ビティ プレー ト (M · C · P ) · 固定側キャ ビティ プ レー ト (F · C · P)にて挟着して成る両面射出成型用金型装置（S • As shown in the cross-sectional front view with the omission of the part of M · A), a pair of movable cavities is provided on each side of the manifold CM · H) located on the axis of vertical symmetry (Y-Y). Plate (M · C · P) · Double-sided injection molding die device (S
• . A—)の一方の該キャ ビティ プレー トの中心部（C― C )に於 て、 滑動 〔 （Cー C)中心部上 〕 自在なる筒体伏中子（ I )を嵌揷せ る外筒（P )表面に、 筒体状電熱ヒータ ー（ϋ)を装着せしめるー方、 該筒体状電熱ヒーター（ϋ)の全周に り、適当なる間隔（例ぇば 1 m/m位）を維持せる空気断熱部（A ^—)を形成する と共に、更に、最 外周に円筒伏冷却水循環筒 (C . W)を配して成る延長ノ ズル を貫通して嵌着せしめた構造を成すものでぁる。 尚、 図中の（G ) は製品、 （R)はラ ンナー、 （M)は溶融樹脂、 （ ― ）はパーティ ングラィ ン、 （R · G )はラ ンナーゲー トを夫々示してぃる。 • At the center (C-C) of one of the cavity plates of A-), fit the sliding core (I) that is free to slide (on the center of (C-C)). Attach a cylindrical electric heater (ϋ) to the surface of the outer cylinder (P) that is to be installed. A suitable interval (for example, 1 m / m (A ^-) is formed to maintain the air-cooling capacity, and an extension nozzle, which is provided with a cylindrical cooling water circulation cylinder (C.W) at the outermost periphery, is fitted through the extension nozzle. What constitutes. In the figure, (G) indicates a product, (R) indicates a runner, (M) indicates a molten resin, (-) indicates a party line, and (RG) indicates a runner gate.
産 業 上 の 利 用 可 能 性  Industrial availability
以上のょぅ に本発明に斯る金型装置は、 両面射出成型業界が抱 ぇてぃる所の、 左右に夫々 1 対ずっ配列せる双方のキャ ビティ プ レー トの型温を 1 0 0 %均一化成し得る と云ぅ、 食って此の種業 界では到底考ぇる事の出来なかった偉大なる特徵 * 効果を具備す る ものでぁるから、 之が採用に依り、 生産性の向上、 コス トダゥ ン、 生産の合理化、 …等、 產業上の利用価値は測り知れなぃもの 有り。  As described above, the mold apparatus according to the present invention is capable of maintaining the mold temperature of both cavity plates arranged one by one on the right and left sides, respectively, in the double injection molding industry. It is said that it is possible to achieve uniform production, and it has great special effects * that could not be considered in this kind of industry at all. The value of industrial use is immeasurable, such as improvement, cost reduction, rationalization of production, etc.

Claims

請 求 の 範 囲 The scope of the claims
1 . 鉛直方向対称轴上に位罱せるマニホールドの両側ょり、 夫々 1対の可動側キャビティ ブレー ト ， 固定側キャビティ ブレー トに て挟着して成る、 両面射出成型用金型装置の一方の該可動側並び に固定側キャビティ プレー ト中心部に於て、 滑動運動自在なる筒 体状中子を嵌揷せる外筒表面に、 筒体状電熱ヒーターを装着せし めるー方、 該筒体伏電熟ヒーターの全周に亘り、 適当なる間隔を 維持せる空気断熱部を形成する と共に、 更に最外周に円筒伏冷却 水循環筒を配して成る延長ノ ズルを貫通して嵌着せしめた事を特0 徵とする、 両面射出成型用金型装置に於ける両面 m金型温度均一 化構造。  1. One side of a double-sided injection molding die device, which is sandwiched between a pair of movable side cavity plate and fixed side cavity plate on both sides of the manifold positioned on the vertical symmetry plane, respectively. At the center of the movable-side and fixed-side cavity plate, a cylindrical electric heater is mounted on the surface of an outer cylinder on which a slidable cylindrical core is fitted. An air-insulating section was formed to maintain an appropriate interval around the entire circumference of the heater, and an extension nozzle formed by arranging a cylindrical cooling water circulation tube at the outermost periphery was fitted through the nozzle. This is a double-sided m mold temperature uniforming structure in a mold apparatus for double-sided injection molding.
0 0
PCT/JP1987/000091 1986-06-26 1987-02-13 Mechanism for uniforming temperature of mold for double injection in mold device for double injection molding WO1988000122A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9809886U JPS633425U (en) 1986-06-26 1986-06-26
JP61/098098U 1986-06-26

Publications (1)

Publication Number Publication Date
WO1988000122A1 true WO1988000122A1 (en) 1988-01-14

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PCT/JP1987/000091 WO1988000122A1 (en) 1986-06-26 1987-02-13 Mechanism for uniforming temperature of mold for double injection in mold device for double injection molding

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WO (1) WO1988000122A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332398A (en) * 1992-02-01 1994-07-26 Board Of Regents, The University Of Texas System Intramedullary catheter
EP1623811A1 (en) * 2004-08-07 2006-02-08 REHAU AG + Co Injection mould for producing a plastic part, especially mould for producing an injection moulded connecting angle for plastic profiles
US7108498B2 (en) 2001-03-15 2006-09-19 Cim Precision Molds (Hk) Limited Quick insert change system for multi-material plastic injection molds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334380Y1 (en) * 1971-02-18 1978-08-23
JPS5848413U (en) * 1981-09-29 1983-04-01 池上金型工業株式会社 Multiple molding mold
JPS6080907U (en) * 1983-11-10 1985-06-05 東芝機械株式会社 Fixed die plate for injection molding machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912923Y2 (en) * 1977-08-08 1984-04-18 秀太郎 井上 ball game machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334380Y1 (en) * 1971-02-18 1978-08-23
JPS5848413U (en) * 1981-09-29 1983-04-01 池上金型工業株式会社 Multiple molding mold
JPS6080907U (en) * 1983-11-10 1985-06-05 東芝機械株式会社 Fixed die plate for injection molding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332398A (en) * 1992-02-01 1994-07-26 Board Of Regents, The University Of Texas System Intramedullary catheter
US7108498B2 (en) 2001-03-15 2006-09-19 Cim Precision Molds (Hk) Limited Quick insert change system for multi-material plastic injection molds
EP1623811A1 (en) * 2004-08-07 2006-02-08 REHAU AG + Co Injection mould for producing a plastic part, especially mould for producing an injection moulded connecting angle for plastic profiles

Also Published As

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