JPH0626836B2 - Oil strainer manufacturing method - Google Patents
Oil strainer manufacturing methodInfo
- Publication number
- JPH0626836B2 JPH0626836B2 JP2024750A JP2475090A JPH0626836B2 JP H0626836 B2 JPH0626836 B2 JP H0626836B2 JP 2024750 A JP2024750 A JP 2024750A JP 2475090 A JP2475090 A JP 2475090A JP H0626836 B2 JPH0626836 B2 JP H0626836B2
- Authority
- JP
- Japan
- Prior art keywords
- flange portion
- net
- oil strainer
- annular projection
- tubular body
- 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.)
- Expired - Fee Related
Links
Landscapes
- Filtration Of Liquid (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はオイルストレーナの製造方法に関し、より詳し
くは管体の成形と連続した工程で網を固着して完成し得
るオイルストレーナの製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing an oil strainer, and more particularly to a method for manufacturing an oil strainer that can be completed by fixing a net in a continuous process of forming a pipe body. .
［従来技術と課題］ 第５，６，７図は夫々従来の製品オイルストレーナ１０
の正面図、平面図、第５図のVII−VII′断面図である。[Prior Art and Problems] FIGS. 5, 6 and 7 show conventional product oil strainer 10 respectively.
FIG. 7 is a front view, a plan view, and a VII-VII ′ sectional view of FIG. 5.
１１は管部、１３は取付フランジ部、１４は網付用フラ
ンジ部、２０は網、１６は補強リブである。Reference numeral 11 is a pipe portion, 13 is a mounting flange portion, 14 is a netting flange portion, 20 is a net, and 16 is a reinforcing rib.
このオイルストレーナ１０はエンジンのオイルパンに溜
ったエンジンオイルをオイルポンプに吸い上げるための
もので、金属片やスラッジ等の比較的径大の油中不純物
を初期段階で濾別する役割も負っている。なお径小の油
中不純物は更にオイルフィルタによって濾別されるよう
になっている。This oil strainer 10 is for sucking up the engine oil accumulated in the engine oil pan into an oil pump, and also has a role of filtering out relatively large diameter impurities in the oil such as metal pieces and sludge in the initial stage. . Impurities in oil having a small diameter are further filtered by an oil filter.
従来、このオイルストレーナは、ＦＲＰ（例えばガラス
繊維入りナイロン６）で管体を射出成形し、ついで管体
端部にステンレス鋼製の円形凸状のフランジ付金網を重
ねて超音波振動もしくは高周波加熱により管体フランジ
部の突起部と融着する方法によって作られていた。Conventionally, this oil strainer injection-molds a tubular body with FRP (for example, nylon 6 with glass fiber), and then superimposes a stainless steel circular convex wire mesh with a flange on the end of the tubular body to ultrasonically vibrate or high-frequency heat. It was made by the method of fusion-bonding with the protrusion of the tubular body flange.
しかし、このような従来方法では、 成形と融着が別工程であり、作業能率が悪い。However, in such a conventional method, molding and fusion are separate steps, and work efficiency is poor.
金網の切り屑や合成樹脂融着時の塵（微細な飛散片）
が製品に残り、使用時にオイルを汚す。Wire mesh chips and dust when fusing synthetic resin (fine particles)
Remains on the product and pollutes the oil during use.
融着表面の外観が悪い。The appearance of the fused surface is poor.
等の問題点があり、満足出来る状態ではなかった。There were problems such as the above, and it was not in a satisfactory state.
そこで本発明者等は前記，，の問題点を解決する
ためにより合理的な手段を求めて鋭意検討し種々実験研
究した結果、本発明に到達した。Therefore, the inventors of the present invention arrived at the present invention as a result of extensive studies and various experimental studies to find more rational means for solving the above-mentioned problems.
［発明の目的］ 本発明の目的は製品に製造工程中の塵状微小片が残らず
かつ網との融着表面が美麗なオイルストレーナを作業能
率良く製造出来る製造方法を提供するにある。[Object of the Invention] An object of the present invention is to provide a manufacturing method capable of efficiently manufacturing an oil strainer in which dust-like minute pieces do not remain in the product during the manufacturing process and the surface fused with the net is beautiful.
［発明の構成］ 本発明により、 管体の下端フランジ部に網を取付けたオイルストレーナ
の製造方法において、 一次射出成形で１箇以上の環状突起を有するフランジ部
付管体を形成する工程と、 該フランジ部付管体を形成する部分型の退避工程と、 該環状突起の上に網を搬入する工程と、 網フランジ部を環状突起形成用部分型で押圧して環状突
起を一部圧潰する工程と、 押圧状態のまま環状突起周辺に管体フランジ部に融着樹
脂を二次射出する事により管体フランジ部と網フランジ
部とを接合する工程と より成る事を特徴とするオイルストレーナの製造方法 が提供される。[Structure of the Invention] According to the present invention, in a method for manufacturing an oil strainer in which a net is attached to a lower end flange portion of a tubular body, a step of forming a tubular body with a flange portion having one or more annular projections by primary injection molding, The step of retracting the partial mold for forming the flanged tubular body, the step of loading the net onto the annular projection, and the partial pressing of the annular projection by pressing the net flange portion with the annular projection forming partial mold. Of the oil strainer, which comprises a step of joining the tubular body flange portion and the net flange portion by secondarily injecting a fusion resin to the tubular body flange portion around the annular projection in the pressed state. A manufacturing method is provided.
本発明技術思想は、換言すれば一次射出した成型品が或
る程度の温度を保ったまま（金型の一方に付いたまま）
の軟らかい状態で、金属または合成樹脂製の網を適切な
圧力で押圧し、管体端部フランジ部に予め設けられた環
状突起が網にめり込み、半ば圧潰された状態で外周に融
着組成樹脂を二次射出して網を固着し、オイルストレー
ナを製造しようとするものである。In other words, the technical idea of the present invention is that the molded product that is primarily injected is kept at a certain temperature (it is attached to one side of the mold).
In a soft state, the metal or synthetic resin net is pressed with an appropriate pressure, and the annular protrusion previously provided on the flange portion of the pipe body is inserted into the net, and is fused to the outer periphery in the state of being half crushed. It is intended to manufacture an oil strainer by secondarily injecting and fixing the net.
以下に実施例を用いて本発明を詳細に説明する。The present invention will be described in detail below with reference to examples.
［実施例］ 第１，２，３図は本発明実施例の工程を示す金型構造の
断面図であり、第４図は網接合部の拡大断面図である。[Embodiment] FIGS. 1, 2, and 3 are sectional views of a mold structure showing steps of an embodiment of the present invention, and FIG. 4 is an enlarged sectional view of a mesh joint.
第１，２，３，４図において、１，４は夫々管端及び管
体をつくるための中型であり、いづれも上下に摺動可能
である。３は固定主型であって側部に網を搬入するため
の開口部３Ａが穿設されている。主型３と中型１の間に
はスリーブ状で下端部に環状突起を成形するための環状
溝を有し上下摺動可能な筒状中型２が介挿されている。
先ず、主型３に対し、中型１，２，４が集合型締めされ
て管体１１を成形するためのキャビティが形成され、つ
いで該キャビティに一次射出樹脂が射出され管体１１が
成形される。同時に管端には環状突起１５を有する網付
用フランジ部１４が成形される。In FIGS. 1, 2, 3, and 4, reference numerals 1 and 4 are medium sizes for forming a pipe end and a pipe body, respectively, and both can slide up and down. Reference numeral 3 is a fixed main mold, and an opening 3A for carrying in a net is bored on the side. Between the main mold 3 and the middle mold 1, a sleeve-like cylindrical middle mold 2 having an annular groove at its lower end for forming an annular protrusion and slidable up and down is inserted.
First, the middle molds 1, 2 and 4 are collectively clamped to the main mold 3 to form a cavity for molding the pipe body 11, and then the primary injection resin is injected into the cavity to mold the pipe body 11. . At the same time, a netting flange portion 14 having an annular projection 15 is formed at the pipe end.
ついで第２図に示すように中型１，２，４が後退退避
し、その間に網２０が矢印方向に主型３の開口部３Ａよ
り挿入（搬入）される。この時、網（この時はステンレ
ス鋼製の凸状金網）２０のフランジ部２０Ａが丁度管体
フランジ部１１の環状突起の上に来るように配置する事
が重要である。Then, as shown in FIG. 2, the middle dies 1, 2 and 4 are retracted and retracted, during which the net 20 is inserted (carried) from the opening 3A of the main mold 3 in the direction of the arrow. At this time, it is important to arrange so that the flange portion 20A of the net (in this case, a convex metal net made of stainless steel) 20 is just above the annular projection of the tubular body flange portion 11.
ついで第３図に示すように筒状中型２が降下し、網フラ
ンジ部２０Ａを押圧する。Then, as shown in FIG. 3, the tubular middle mold 2 is lowered and presses the mesh flange portion 20A.
この時管体１１は一次射出後まだ時間が経っていないの
でなお温熱半硬状態にあり、適度な圧力で筒状中型２に
より圧下押圧されることで環状突起は容易に半ば圧潰す
る。At this time, the tubular body 11 is still in a warm and semi-hard state since the time has not yet elapsed after the primary injection, and the annular projection is easily crushed halfway by being pressed down by the cylindrical middle mold 2 with an appropriate pressure.
かくて突起部が第４図に示すように網中にめり込んだ状
態で、環状突起１５の外側から（第２樹脂射出口は図示
せず）二次射出樹脂を射出する。Thus, as shown in FIG. 4, the secondary injection resin is injected from the outside of the annular projection 15 (the second resin injection port is not shown) in a state where the projection is embedded in the net.
かくする事により、網の隙間には突起がめり込んでいる
ので環状突起１５のラジアル方向内側に二次射出樹脂が
洩れ込む事はない。By doing so, since the projection is embedded in the gap of the net, the secondary injection resin does not leak inside the annular projection 15 in the radial direction.
なお環状突起１５は同心円上に２箇以上設けてもよい。
この場合、外側の環状突起には不連続部を設けておくと
二次射出樹脂が入り易くより強固に網が融着される。Two or more annular protrusions 15 may be provided on a concentric circle.
In this case, if a discontinuous portion is provided on the outer ring-shaped projection, the secondary injection resin is likely to enter and the net is more firmly fused.
製品完成後は主型３、中型１，２の分離分割して製品を
取り出す。After the product is completed, the main mold 3, the middle molds 1 and 2 are separated and separated to take out the product.
因みに網に突起をめり込ませるための荷重については、
一次射出樹脂の圧縮強度を約３００kg／cm2突起幅を１
ｍｍ、周長１５０ｍｍとすれば、全圧力約４５０kgで圧
潰し始める。従ってこれの数倍の押圧力を加えれば目的
を達する事は出来る訳である。この時、（金）網の厚み
は約０．６ｍｍ、環状突起の巾は０．５〜１．０ｍｍ、
高さも０．５〜１．０ｍｍであった。By the way, for the load to push the projection into the net,
Compressive strength of primary injection resin is about 300kg / cm 2 Protrusion width is 1
mm, and perimeter 150 mm, crushing starts at a total pressure of about 450 kg. Therefore, the purpose can be achieved by applying a pressing force that is several times this. At this time, the thickness of the (metal) net is about 0.6 mm, the width of the annular protrusion is 0.5 to 1.0 mm,
The height was also 0.5 to 1.0 mm.
一時射出樹脂と二次射出樹脂（融着樹脂）は互いに融着
可能であればよく、同一樹脂であってもよいし、別組成
の樹脂であってもよい。The temporary injection resin and the secondary injection resin (fusion resin) may be the same resin or may be resins of different compositions as long as they can be fused to each other.
［発明の効果］ 本発明を実施する事により前記目的がすべて達成され
る。[Effects of the Invention] By carrying out the present invention, all the above objects can be achieved.
すなわち作業能率が向上し、製品上に金属片や樹脂片が
残る事もなく、使用時オイルを汚す事もなく、製品外観
が向上する。That is, work efficiency is improved, metal pieces and resin pieces are not left on the product, oil is not polluted during use, and the product appearance is improved.
第１，２，３，４図は本発明実施例の断面図、第５，
６，７図は従来の製品オイルストレーナの夫々正面図、
平面図、VII−VII′断面図である。 １０……オイルストレーナ、 １１……管体、 １４……フランジ部、 １５……環状突起、 ２０……網、 ２１……二次射出樹脂。1, 2, 3, and 4 are sectional views of an embodiment of the present invention, and
Figures 6 and 7 are front views of conventional product oil strainers,
FIG. 7 is a plan view and a VII-VII ′ cross-sectional view. 10 ... Oil strainer, 11 ... Tube body, 14 ... Flange portion, 15 ... Annular protrusion, 20 ... Net, 21 ... Secondary injection resin.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 31:14 4Ｆ (72)発明者 岡村 雅晴 広島県東広島市八本松町大字原175番地の １ 大協株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Reference number in the agency FI Technical indication location B29L 31:14 4F (72) Inventor Masaharu Okamura 1 of 175 Odaihara, Hachimotomatsu-cho, Higashihiroshima-shi, Hiroshima Daikyo Co., Ltd.
Claims (1)
ルストレーナの製造方法において、 一次射出成形で１箇以上の環状突起を有するフランジ部
付管体を形成する工程と、 該フランジ部付管体を形成する部分型の退避工程と、 該環状突起の上に網を搬入する工程と、 網フランジ部を環状突起形成用部分型で押圧して環状突
起を一部圧潰する工程と、 押圧状態のまま環状突起周辺に管体フランジ部に融着樹
脂を二次射出する事により管体フランジ部と網フランジ
部とを接合する工程と より成る事を特徴とするオイルストレーナの製造方法。1. A method of manufacturing an oil strainer in which a net is attached to a lower end flange portion of a tubular body, the step of forming a tubular body with a flange portion having one or more annular projections by primary injection molding, and the flange portion A step of retracting the partial mold that forms the tubular body; a step of loading the net onto the annular projection; a step of pressing the net flange portion with the partial mold for forming the annular projection to partially crush the annular projection; A method for manufacturing an oil strainer, which comprises a step of joining the tubular flange portion and the net flange portion by secondarily injecting a fusion resin to the tubular flange portion around the annular projection in this state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024750A JPH0626836B2 (en) | 1990-02-03 | 1990-02-03 | Oil strainer manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024750A JPH0626836B2 (en) | 1990-02-03 | 1990-02-03 | Oil strainer manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03230919A JPH03230919A (en) | 1991-10-14 |
| JPH0626836B2 true JPH0626836B2 (en) | 1994-04-13 |
Family
ID=12146820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024750A Expired - Fee Related JPH0626836B2 (en) | 1990-02-03 | 1990-02-03 | Oil strainer manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626836B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005037983A1 (en) * | 2003-10-21 | 2005-04-28 | Fuji Photo Film Co., Ltd. | Nucleic acid separation purification cartridge and process for producing the same |
-
1990
- 1990-02-03 JP JP2024750A patent/JPH0626836B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03230919A (en) | 1991-10-14 |
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