JPH03126507A - Insert molding method - Google Patents

Insert molding method

Info

Publication number
JPH03126507A
JPH03126507A JP26496989A JP26496989A JPH03126507A JP H03126507 A JPH03126507 A JP H03126507A JP 26496989 A JP26496989 A JP 26496989A JP 26496989 A JP26496989 A JP 26496989A JP H03126507 A JPH03126507 A JP H03126507A
Authority
JP
Japan
Prior art keywords
molding
mold
surplus part
cavity
wire net
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
JP26496989A
Other languages
Japanese (ja)
Other versions
JP2858332B2 (en
Inventor
Yasuaki Tanabe
靖章 田辺
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.)
Nok Corp
Original Assignee
Nok 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 Nok Corp filed Critical Nok Corp
Priority to JP26496989A priority Critical patent/JP2858332B2/en
Publication of JPH03126507A publication Critical patent/JPH03126507A/en
Application granted granted Critical
Publication of JP2858332B2 publication Critical patent/JP2858332B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C2045/14147—Positioning or centering articles in the mould using pins or needles penetrating through the insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Abstract

PURPOSE:To prevent positional deviation and rising of an insert sheet, by a method wherein a surplus part is provided on the insert sheet and after performance of molding by fixing the surplus part on a parting part of a molding tool, and the surplus part is cut off and removed. CONSTITUTION:A wire net 11 is blank-processed a size larger than a product form so that a surplus part 14 is left behind extending over almost the whole circumference of a wire net stretching part of a filter. A space 4 holding the surplus part 14 of the wire net 11 is provided in succession to a cavity 2 and a plurality of needlelike projections 5 for fixing the surplus part 14 and recessed parts corresponding to the projections 5 are provided extending over the whole circumference of the cavity 2. The wire net 11 is stretched strongly in a facial direction under a mold broken state and the surplus part 14 is fixed by inserting respectively into a plurality of the projections 5. Then a mold is clamped, molding is performed by filling a molding material into the cavity 2, the mold is broken, mold release is performed and the surplus part 14 is cut off at a C-C line for removal.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、インサート成形方法の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in an insert molding method.

〔従来の技術〕[Conventional technology]

従来から、インサート成形によって成形される成形品と
して、第２図および第３図に示すような、金網（１１）
を樹脂製の枠（１２）で縁取りしたオイルフィルタが知
られている。枠（１２）内には必要に応じて適宜、枠（
１２）と一体になる樹脂製の桟（１３）が設けられてい
る。Conventionally, wire mesh (11) as shown in Figs. 2 and 3 has been used as a molded product formed by insert molding.
An oil filter is known in which the oil filter is surrounded by a resin frame (12). In the frame (12), fill in the frame (12) as necessary.
12) is provided with a resin crosspiece (13).

上記フィルタを製作するに際しては、成形型のキャビテ
ィに予め製品形状とした金網（１１）を入れ、キャビテ
ィに樹脂材料を充填し、該材料の硬化を待って枠（１２
）と金網（１１）を一体化している。When manufacturing the above-mentioned filter, a wire mesh (11) shaped into a product is placed in the cavity of a mold, the cavity is filled with a resin material, and after the material hardens, the frame (12) is
) and wire mesh (11) are integrated.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記製作に際して、金網（１１）は、ロール状（フープ
状）の原反より打抜き加工され、製品形状に打抜かれた
後も、ロール状に丸まろうとする癖を残している。した
がって、この癖の付いた金網（ＩＩ）をキャビティに入
れると位置ずれや浮き上がり等の不具合を生じ、金網（
Ｉ　Ｉ）を所定位置に平たく張設することができない問
題がある。During the above manufacturing process, the wire mesh (11) is punched from a roll-shaped (hoop-shaped) original fabric, and even after being punched into the product shape, it still has a tendency to curl up into a roll shape. Therefore, if the wire mesh (II) with this habit is placed in the cavity, problems such as misalignment and lifting may occur, and the wire mesh (II)
There is a problem in that it is not possible to flatten the I) in a predetermined position.

〔課題を解決するための手段〕[Means to solve the problem]

本発明は以上の点に鑑み、上記従来技術にみられる問題
を解消することを目的とするもので、この目的を達成す
るため、成形型のキャビティに金網や不織布などのイン
サートシートを入れ、前記キャビティに成形材料を充填
し、前記成形材料の硬化を待って前記材料よりなる成形
品部と前記インサートシートを一体化するインサート成
形において、前記インサートシートに余剰部分を設け、
前記余剰部分を前記成形型のパーティング部に固定して
成形を行ない、成形後、前記余剰部分を切断除去するこ
とを特徴とする。In view of the above points, it is an object of the present invention to solve the problems seen in the above-mentioned conventional techniques. In insert molding in which a cavity is filled with a molding material and the molded part made of the material is integrated with the insert sheet after waiting for the molding material to harden, a surplus portion is provided in the insert sheet,
The method is characterized in that the surplus portion is fixed to a parting portion of the mold and molded, and after molding, the surplus portion is cut and removed.

〔作　用〕[For production]

インサートシートに設けられる余剰部分は成形後に切断
除去されるもので、該部分に穿孔したりして該部分を傷
を付けることは一向に差し支えない。本発明は、この余
剰部分をつかってインサートシートをしっかりと強持し
た状態で成形を行ない、品質向上の実効を図るものであ
る。The surplus portion provided on the insert sheet is cut and removed after molding, and there is no problem in damaging the portion by drilling or otherwise damaging the portion. The present invention aims to effectively improve quality by using this surplus portion to perform molding while firmly holding the insert sheet.

〔実　施　例〕〔Example〕

つぎに本発明の実施例を上記フィルタ製品を成形する場
合に則して説明する。Next, embodiments of the present invention will be explained based on the case where the above-mentioned filter product is molded.

第１図は、当該方法の実施に使用する成形型（１）の要
部断面を第３図のＢ部に対応して描いており、図上左側
がフィルタの内側、右側がフィルタの外側である。Figure 1 depicts a cross-section of the main part of the mold (1) used to carry out the method, corresponding to part B in Figure 3, with the left side of the figure being the inside of the filter and the right side being the outside of the filter. be.

金網（１１）を製品形状より太き（打抜き加工して周縁
に余剰部分（１４）を設け、この余剰部分（１４）を成
形型（１）のパーティング部（３）にしっかりと固定し
て成形を行ない、成形後、離型した上で、前記余剰部分
（１４）を切断除去する。金ｆｆ１（１１）は、第２図
に鎖線で示すように、フィルタの金網張設部分の略全周
に余剰部分（１４）が残るように製品形状より一廻り大
きく打抜き加工する。成形型（１）のパーティング部（
３）には、金網（１１）の余剰部分（１４）を収容する
スペース（４）をキャビティ（２）から連続して設け、
余剰部分（１４）を固定するための針状の突起（５）と
該突起（５）に対応する凹部（６）をキャビティ（２）
の全周に亘って複数設けておく。The wire mesh (11) is punched out to be thicker than the product shape to provide an extra part (14) around the periphery, and this extra part (14) is firmly fixed to the parting part (3) of the mold (1). After molding, the excess portion (14) is cut and removed after molding.The gold ff1 (11) covers almost the entire portion of the filter where the wire mesh is stretched, as shown by the chain line in FIG. Punch out one size larger than the product shape so that an extra part (14) remains around the periphery.The parting part (14) of the mold (1)
3), a space (4) for accommodating the surplus portion (14) of the wire mesh (11) is provided continuously from the cavity (2);
A needle-like protrusion (5) for fixing the surplus portion (14) and a recess (6) corresponding to the protrusion (5) are inserted into the cavity (2).
A plurality of them are provided around the entire circumference.

型開き（図上上下に分割される）した状態で、金網（１
１）を面方向に強（張り、余剰部分（１４）を複数の突
起（５）のそれぞれに差し込んでしっかりと固定する。With the mold open (divided into upper and lower parts in the figure), wire mesh (1
1), firmly tighten it in the plane direction, and insert the excess portion (14) into each of the plurality of protrusions (5) to securely fix it.

次いで、型締めし、キャビティ（２）に成形材料を充填
して成形を行ない、型開きし、離型して余剰部分（１４
）をＣ−Ｃ線から切断除去する。Next, the mold is clamped, the molding material is filled into the cavity (2) and molding is performed, the mold is opened and the mold is released, and the excess portion (14
) is cut and removed from the C-C line.

このようにしてフィルタを成形することにより、金＃　
（１１）の位置ずれや浮き上がりを防止し、金網（１１
）を平たく張った高品質の製品を得ることができる。尚
、本発明はフィルタの製造方法に限定されず、インサー
トシートを有する様々な製品について適用することがで
き、インサートシートについても金網のほか不織布や各
種フィルムなど様々なものが考えられる。By molding the filter in this way, gold #
(11) to prevent it from shifting or lifting up.
) can be obtained by flattening high quality products. Note that the present invention is not limited to the method of manufacturing filters, but can be applied to various products having insert sheets, and various insert sheets can be considered, such as wire mesh, nonwoven fabrics, and various films.

〔発明の効果〕〔Effect of the invention〕

本発明のインサート成形方法は以上説明したように、イ
ンサートシートに余剰部分を設け、該余剰部分を成形型
のパーティング部に固定して成形を行なってから該余剰
部分を切断除去するもので、インサートシートの位置ず
れや浮き上がりを防止して、高品質の製品を成形するこ
とができる。As explained above, the insert molding method of the present invention is a method in which a surplus portion is provided on an insert sheet, the surplus portion is fixed to the parting part of a mold, molding is performed, and then the surplus portion is cut and removed. It is possible to mold high-quality products by preventing the insert sheet from shifting or lifting.

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

第１図は本発明の実施例に係る成形方法に使用する成形
型の要部断面図、第２図はフィルタの平面図、第３図は
第２図におけるＡ−Ａ線断面図である。 （１）成形型　　（２）キャビティ （３）パーティング部　　（４）収容スペース（５）突
起　　（６）凹部　　（１１）金網　　（１２）枠（１
３）桟　　（１４）余剰部分 第１図 第２図 第３図 ρFIG. 1 is a sectional view of a main part of a mold used in a molding method according to an embodiment of the present invention, FIG. 2 is a plan view of a filter, and FIG. 3 is a sectional view taken along line A--A in FIG. 2. (1) Molding mold (2) Cavity (3) Parting part (4) Accommodation space (5) Protrusion (6) Recess (11) Wire mesh (12) Frame (1)
3) Crosspiece (14) Surplus part Figure 1 Figure 2 Figure 3 ρ

Claims (1)

【特許請求の範囲】[Claims] １、成形型（１）のキャビティ（２）に金網や不織布な
どのインサートシート（１１）を入れ、前記キャビティ
（２）に成形材料を充填し、前記成形材料の硬化を待っ
て前記材料よりなる成形品部（１２）と前記インサート
シート（１１）を一体化するインサート成形において、
前記インサートシート（１１）に余剰部分（１４）を設
け、前記余剰部分（１４）を前記成形型（１）のパーテ
ィング部（３）に固定して成形を行ない、成形後、前記
余剰部分（１４）を切断除去することを特徴とするイン
サート成形方法。1. Insert an insert sheet (11) such as wire mesh or nonwoven fabric into the cavity (2) of the mold (1), fill the cavity (2) with a molding material, wait for the molding material to harden, and then insert the insert sheet (11) made of the material. In insert molding that integrates the molded part (12) and the insert sheet (11),
A surplus portion (14) is provided on the insert sheet (11), the surplus portion (14) is fixed to the parting portion (3) of the mold (1) and molded, and after molding, the surplus portion (14) is fixed to the parting portion (3) of the mold (1). 14) An insert molding method characterized by cutting and removing.
JP26496989A 1989-10-13 1989-10-13 Insert molding method Expired - Lifetime JP2858332B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26496989A JP2858332B2 (en) 1989-10-13 1989-10-13 Insert molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26496989A JP2858332B2 (en) 1989-10-13 1989-10-13 Insert molding method

Publications (2)

Publication Number Publication Date
JPH03126507A true JPH03126507A (en) 1991-05-29
JP2858332B2 JP2858332B2 (en) 1999-02-17

Family

ID=17410726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26496989A Expired - Lifetime JP2858332B2 (en) 1989-10-13 1989-10-13 Insert molding method

Country Status (1)

Country Link
JP (1) JP2858332B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054257A (en) * 1991-06-28 1993-01-14 Ebara Corp Injection molding dye
EP1897668A1 (en) * 2006-09-11 2008-03-12 L&P Swiss Holding Company Method and system for automatically feeding inserts to a mold and mold

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101435484B1 (en) * 2012-12-20 2014-08-28 이중재 Injection mold for cloth insertion molding
WO2019123371A1 (en) * 2017-12-20 2019-06-27 Stamber S.R.L. Mold, molding equipment and method for making a tensioned membrane panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054257A (en) * 1991-06-28 1993-01-14 Ebara Corp Injection molding dye
EP1897668A1 (en) * 2006-09-11 2008-03-12 L&P Swiss Holding Company Method and system for automatically feeding inserts to a mold and mold

Also Published As

Publication number Publication date
JP2858332B2 (en) 1999-02-17

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Legal Events

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EXPY Cancellation because of completion of term