JPS61202808A - Resin mold - Google Patents

Resin mold

Info

Publication number
JPS61202808A
JPS61202808A JP4310485A JP4310485A JPS61202808A JP S61202808 A JPS61202808 A JP S61202808A JP 4310485 A JP4310485 A JP 4310485A JP 4310485 A JP4310485 A JP 4310485A JP S61202808 A JPS61202808 A JP S61202808A
Authority
JP
Japan
Prior art keywords
window
piece
cylindrical protrusion
windowless
cavity
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
Application number
JP4310485A
Other languages
Japanese (ja)
Other versions
JPH0587365B2 (en
Inventor
Sadao Itou
伊藤　佐太男
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4310485A priority Critical patent/JPS61202808A/en
Publication of JPS61202808A publication Critical patent/JPS61202808A/en
Publication of JPH0587365B2 publication Critical patent/JPH0587365B2/ja
Granted 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
    • B29C45/2628—Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages
    • 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
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • B29C45/376—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings adjustable

Landscapes

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

Abstract

PURPOSE:To prevent generation of a flaw in a windowless molded article by providing a cylindrical protrusion on a cavity corresponding to a part where the existence of the window(s) is expected to exist, and by responding swiftly to existence of window(s). CONSTITUTION:In case of a windowless molded article 4a, a cavity 7 whose central part is provided with a cylindrical protrusion 8 is used. In case of window molded article 1a, a piece 3 is abutted against the cylindrical protrusion 8 and resin does not enter into a space 9. In case of manufacturing of two kinds of the molded articles such as window one and windowless one whose external appearances are indentical with each other, a quick response is possible by performing replacement or changing position of the piece of a core side mold, a part against which the piece is abutted is the cylindrical protrusion 8, only the bottom of a groove is flowed when a material is made into a product and the molten article which does not attract attention on its flaw can be obtained.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は一つの金型で、成形品のある一部の形状、例え
ば窓（穴）部の有、無に迅速に対応できるようにした樹
脂成形金型に関するものである。Detailed Description of the Invention: Industrial Field of Application The present invention is a resin molding method that can quickly adapt to the shape of a part of a molded product, such as the presence or absence of a window (hole), using one mold. It is related to molds.

従来の技術 従来この種の内容に対応するため窓ありの成形品と窓な
しの成形品とを成形する場合忙は第３図及び第４図に示
すように、窓あシの成形品１は成形用キャビティ２にピ
ース３を当接させて成形し、窓なしの成形品４は、同じ
成形金型のピース３を後退させるか別ピース５を使用し
、成形を行なっていた。６はコアである。BACKGROUND ART Conventionally, when molding a molded product with a window and a molded product without a window to accommodate this type of content, as shown in FIGS. 3 and 4, the molded product 1 of the window sill is Molding was carried out by bringing the piece 3 into contact with the molding cavity 2, and for the molded product 4 without a window, the piece 3 of the same molding die was moved back or a separate piece 5 was used. 6 is the core.

発明が解決しようとする問題点 しかしこのように２種類の形状すなわち窓の有無に対応
するためにはピース３をキャビティ２に当接するため、
キャピテイ２０ピース３が当接した部分２ａにキズが生
じ、窓のない成形品の成形時に成形品にキズが生じると
いう意匠上の問題があった。Problems to be Solved by the Invention However, in order to accommodate these two types of shapes, that is, the presence and absence of windows, it is necessary to bring the piece 3 into contact with the cavity 2.
There was a design problem in that scratches occurred in the portion 2a in contact with the capity 20 piece 3, and scratches occurred on the molded product when molding the molded product without windows.

本発明は一つの金型の中の一パーツのみの簡単な取り替
え又は位置の変更で例えば成形品の窓の有無に迅速に対
応でき、しかも窓なしの成イ品にキズの生じない成形金
型を提供することを目的とする。The present invention is a molding die that can quickly respond to the presence or absence of a window in a molded product by simply replacing or changing the position of only one part in one mold, and which does not cause scratches on finished products without windows. The purpose is to provide

問題点を解決するだめの手段 上記問題点を解決するために、成形品の例えば窓がある
と予想される部分のキャビティに筒状の　−突起を設け
たものである。Means for Solving the Problems In order to solve the above problems, a cylindrical protrusion is provided in the cavity of the molded product, for example, in a portion where a window is expected to be located.

作　　用 以上の構成で、コア側金型ピースのみを簡単に取り替え
又は位置を変えることにより２種類の成形品すなわち例
えば窓の有・無の成形品を得ることができ、かつ、前記
ピースの当接するキャビティは、筒の端部に限定される
ため、キズが生じるのは成形品の筒状の溝の底となりキ
ズが目立たない。Effect With the above configuration, two types of molded products, for example, molded products with and without windows, can be obtained by simply replacing or changing the position of only the core side mold piece, and the molded product with and without windows can be obtained. Since the contacting cavity is limited to the end of the cylinder, scratches occur at the bottom of the cylindrical groove of the molded product and are not noticeable.

実施例 以下本発明の一実施例について第１図及び第２図を参考
にしながら説明する。EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2.

第１図は窓のない成形も４ａを成形する場合を示すもの
で中央部に筒状の突起８を設けたキャビティ７を有して
いる。第２図は窓のある成形品１ｂを成形する場合を示
し、ピース３が筒状の突起６に当接し、空間９には樹脂
は入らない。FIG. 1 shows the case of molding 4a without a window, which has a cavity 7 with a cylindrical projection 8 in the center. FIG. 2 shows the case of molding a molded product 1b with a window, in which the piece 3 comes into contact with the cylindrical protrusion 6, and no resin enters the space 9.

発明の効果 以上の通り、本発明では、外形が同じでかつ例えば窓の
あるもの、ないものの２種類の成形品を造る場合、コア
側金型のピースを入替え又は位置を変えることにより簡
単に対応でき、かつ、ピースが当接するのはキャピテイ
の筒状突起であり、成形品となった蒔溝の底にキズが生
じるのみでキズの目立たない成形品を得ることができる
。Effects of the Invention As described above, with the present invention, when two types of molded products with the same external shape are to be manufactured, for example, one with a window and one without a window, this can be easily handled by replacing or changing the position of the core side mold piece. In addition, the piece comes into contact with the cylindrical projection of the capitei, and a molded product with no noticeable scratches can be obtained, with only scratches occurring at the bottom of the sowing groove that becomes the molded product.

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

第１図及び第２図は本発明の一実施例の成形金型の断面
図、第３図及び第４図は従来の成形金型の断面図である
。 ６・・・・・・コア、８・・・・・・筒状突起、７・・
・・・・キャビティ、３，５・・・・・・ピース。1 and 2 are cross-sectional views of a molding die according to an embodiment of the present invention, and FIGS. 3 and 4 are cross-sectional views of conventional molding molds. 6... Core, 8... Cylindrical projection, 7...
...Cavity, 3,5...Piece.

Claims (1)

【特許請求の範囲】[Claims] 樹脂成形を行なうキャビティ側に筒状の突起を設けると
共に、コアは前記突起に対向して前記突起と当接して、
キャビティ内に樹脂の入り込まない空間を設けるための
ピースを有する状態と、前記突起に対向するが前記突起
とは当接しないピースを有する状態の二つの状態を取り
得る構成とした樹脂成形金型。A cylindrical protrusion is provided on the side of the cavity where resin molding is performed, and the core faces and abuts the protrusion,
A resin molding mold having a structure that can take two states: a state in which it has a piece for providing a space in which resin does not enter the cavity, and a state in which it has a piece that faces the protrusion but does not come into contact with the protrusion.
JP4310485A 1985-03-05 1985-03-05 Resin mold Granted JPS61202808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4310485A JPS61202808A (en) 1985-03-05 1985-03-05 Resin mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4310485A JPS61202808A (en) 1985-03-05 1985-03-05 Resin mold

Publications (2)

Publication Number Publication Date
JPS61202808A true JPS61202808A (en) 1986-09-08
JPH0587365B2 JPH0587365B2 (en) 1993-12-16

Family

ID=12654525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4310485A Granted JPS61202808A (en) 1985-03-05 1985-03-05 Resin mold

Country Status (1)

Country Link
JP (1) JPS61202808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1266743A2 (en) * 2001-06-13 2002-12-18 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus and method for using molding apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1266743A2 (en) * 2001-06-13 2002-12-18 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus and method for using molding apparatus
EP1266743A3 (en) * 2001-06-13 2003-05-28 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus and method for using molding apparatus
US6866497B2 (en) 2001-06-13 2005-03-15 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus having a projecting bulge located in a die half

Also Published As

Publication number Publication date
JPH0587365B2 (en) 1993-12-16

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Legal Events

Date Code Title Description
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