JPH01207112A - Production of filter element - Google Patents
Production of filter elementInfo
- Publication number
- JPH01207112A JPH01207112A JP2876988A JP2876988A JPH01207112A JP H01207112 A JPH01207112 A JP H01207112A JP 2876988 A JP2876988 A JP 2876988A JP 2876988 A JP2876988 A JP 2876988A JP H01207112 A JPH01207112 A JP H01207112A
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- folded
- corrugated
- filter
- turned
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 claims description 13
- 238000005304 joining Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 24
- 238000009423 ventilation Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000012943 hotmelt Substances 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 239000011295 pitch Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011118 depth filtration Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はフィルタエレメントの製造方法に係り、特に内
燃機関のエアークリーナに使用されるフィルタエレメン
トの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a filter element, and particularly to a method for manufacturing a filter element used in an air cleaner for an internal combustion engine.
内燃機関等のエアークリーナに使用されるエレメントに
は、乾式タイプと湿式タイプがあることは一般的に知ら
れている。いずれの場合も濾過方法としては表面濾過、
深層濾過がその主流を占めている。斯かるエアークリー
ナエレメントとして要求される条件としては被濾過流体
中に存在するダストなどの微粒子を効果的に除去する濾
過性能を有し、しかも長期間にわたって良好な濾過性能
を維持し続けることが重要である。It is generally known that there are two types of elements used in air cleaners such as internal combustion engines: dry type and wet type. In either case, the filtration method is surface filtration,
Depth filtration is the mainstream. The requirements for such an air cleaner element include having filtration performance that effectively removes particulates such as dust present in the fluid to be filtered, and maintaining good filtration performance over a long period of time. It is.
このような観点から、従来から種々のエレメントが提案
されており、例えば、実開昭６１−２００１１６号公報
に記載のハニカム型エアフィルタがある。From this point of view, various elements have been proposed in the past, and for example, there is a honeycomb type air filter described in Japanese Utility Model Application Publication No. 61-200116.
斯かるハニカム型フィルタエレメント３０は、第１６図
及び第１７図に示されるように平板濾材３１と、ひだ折
りし山部と谷部とを形成した波板濾材３２とを交互に重
ね合せ、−（Ｉ！Ｉｆ＠の波形濾材３２の山部と他側端
の波形濾材３２の谷部とを充填シール材３３により充填
シールし、両側端間に一端が開放し、他端が閉塞する多
数の流路を形成したものである。そして、このハニカム
型フィルタエレメント３０においては、被濾過流体であ
るエアは矢印で示すように入口側開口＠３０□、よりエ
レメント内に流入し、平板濾材３１と波形濾材３２との
間に形成された流路３４内を進み、エレメントの濾過面
を通過する間に清浄にされ、出口側開放端３００ＵＴよ
り流出する。Such a honeycomb filter element 30 is made by alternately overlapping flat filter media 31 and corrugated filter media 32 having pleated peaks and valleys, as shown in FIGS. 16 and 17. (The peaks of the corrugated filter medium 32 of I!If@ and the valleys of the corrugated filter medium 32 at the other end are filled and sealed with the filling sealing material 33, and a large number of In this honeycomb type filter element 30, air, which is the fluid to be filtered, flows into the element through the inlet side opening @30□ as shown by the arrow, and flows into the element through the flat filter medium 31. The liquid flows through the flow path 34 formed between the corrugated filter medium 32, is cleaned while passing through the filtering surface of the element, and flows out from the outlet side open end 300UT.
〔発明が解決しようとする課題〕
しかしながら、上述した従来のハニカム型エアフィルタ
においては、被濾過流体がエレメントに流入する際に被
濾過流体の一部が第１７図に示されるように充填材３３
の外端面３３ａに街接し、通気抵抗が増大するという問
題点がある。この問題は、クリーンサイドへ被濾過流体
が流出する際にも生ずる。即ち、被濾過流体が充填シー
ル材３３の内端面３３ｂに衝接し、通気抵抗が増大する
という問題点がある。[Problems to be Solved by the Invention] However, in the conventional honeycomb air filter described above, when the fluid to be filtered flows into the element, a part of the fluid to be filtered is absorbed into the filler 33 as shown in FIG.
There is a problem that the outer end surface 33a of the outer end surface 33a is in contact with the street, increasing ventilation resistance. This problem also occurs when the fluid to be filtered flows out to the clean side. That is, there is a problem in that the fluid to be filtered collides with the inner end surface 33b of the filling sealing material 33, increasing ventilation resistance.
また、上述の問題点を濾過面積の点から考慮すれば、充
填シール材３３により閉塞されている部分は濾過面とし
ては活用できないため、濾過面積の減少になり、ひいて
はロングライフ化の妨げとなっているという問題点があ
る。Furthermore, if the above-mentioned problem is considered from the viewpoint of the filtration area, the part blocked by the filling sealing material 33 cannot be used as a filtration surface, resulting in a decrease in the filtration area, which in turn impedes long life. There is a problem that
本発明は上記事情に鑑みて創案されたもので、その目的
とする処は、被濾過流体の通気抵抗の低減を図るととも
に濾過面積の増大を図ることにより、濾過性能の向上を
達成するとともに長期間にわたって良好な濾過性能を維
持し続けることができるフィルタエレメントの製造方法
を提供することにある。The present invention was devised in view of the above circumstances, and its purpose is to improve filtration performance and extend the lifespan by reducing the ventilation resistance of the fluid to be filtered and increasing the filtration area. It is an object of the present invention to provide a method for manufacturing a filter element that can continue to maintain good filtration performance over a period of time.
上述した課題を解決するため本発明は、シート状の平板
濾材と、シート状の濾材を折曲して多数の山部と谷部を
連設して波形状に形成した波形濾材とを交互に配置した
フィルタエレメントの製造方法において、シート状濾材
に直線状の筋付けを行いこの筋付は部に沿って折曲して
多数の山部と谷部を連設するひだ折り込み工程と、この
びだ折り込み工程にて形成した波形濾材の一側端にて各
山部をそれぞれ内方に折込むか隣接する平板濾材側に折
曲し、この折込み部又は折曲部にて各山部の端部を閉塞
し、他側端にて上記各山部に隣接する各谷部をそれぞれ
内方に折込むか隣接する平板濾材側に折曲し、この折込
み部又は折曲部にて各谷部の端部を閉塞する端部閉塞工
程と、上記折込み部又は折曲部箇所において波形濾材と
相隣接する平板濾材とを接合する接合工程とを備えたこ
とを特徴とするものである。In order to solve the above-mentioned problems, the present invention alternately uses a sheet-like flat filter medium and a corrugated filter medium, which is formed by bending a sheet-like filter medium and connecting a large number of peaks and troughs to form a wave shape. In the manufacturing method of the arranged filter element, a sheet-like filter medium is made with linear creases, and the creases are folded along the sections to form a number of peaks and valleys. At one side end of the corrugated filter medium formed in the folding process, each ridge is folded inward or bent toward the adjacent flat filter medium, and the end of each ridge is formed at this folded or bent part. At the other end, each trough adjacent to each peak is folded inward or bent toward the adjacent flat filter medium, and the end of each trough is closed at the folded or bent part. and a joining step of joining the corrugated filter medium and the adjacent flat filter medium at the folded or bent portions.
本発明は上記手段により、シート状の平板濾材と、多数
の山部と谷部を連設して波形状に形成した波形濾材とか
らなるフィルタエレメントの製造方法において、波形濾
材の一側端にて各山部をそれぞれ内方に折込んだ折込み
部又は折曲した折曲部にて各山部の端部を閉塞するとと
もに、他側端にて上記各山部に隣接する各谷部をそれぞ
れ内方に折込んだ折込み部又は折曲した折曲部にて各谷
部の端部を閉塞できるなめ、上記各山部、谷部の両端部
を接着剤等の充填シール材にて閉塞する必要がなく、こ
の両端部を濾過面として活用することができ、通気抵抗
の減少及び濾過面積の増大を図ることができる。The present invention provides a method for manufacturing a filter element comprising a sheet-like flat filter medium and a corrugated filter medium formed into a corrugated shape by connecting a large number of peaks and troughs. Close the end of each peak with a folded part or a folded part where each peak is folded inward, and close each valley adjacent to each peak with the other end. The ends of each trough can be closed with the folded part folded inward or the folded part folded inward, and both ends of each crest and trough are closed with a filling sealing material such as adhesive. There is no need to do so, and both ends can be used as filtration surfaces, thereby reducing ventilation resistance and increasing the filtration area.
以下、本発明に係るフィルタエレメントの製造方法の実
施例を第１図乃至第１３図を参照して説明する。Embodiments of the method for manufacturing a filter element according to the present invention will be described below with reference to FIGS. 1 to 13.
本発明に係るフィルタエレメント１は、第１図及び第２
図に示されるようにシート状の平板濾材２と、シート状
の濾材を折り曲げて多数の山部３ａと谷部３ｂとを連設
して波形状に形成した波形濾材３とを重ね合わせ、これ
ら平板濾材２と波形濾材３とを交互に配置したものから
なっている。The filter element 1 according to the present invention is shown in FIGS.
As shown in the figure, a sheet-like flat filter medium 2 and a corrugated filter medium 3 formed into a wave shape by bending the sheet-like filter medium and connecting a large number of peaks 3a and troughs 3b are stacked together. It consists of flat filter media 2 and corrugated filter media 3 arranged alternately.
上記波形濾材３は、第３図に示されるようにその一側端
Ｓ［において各山部３ａの端部３ｅをそれぞれ内方に折
込んで折込み部４を形成し、この折込み部４にて各山部
３ａの端部３ｅを閉塞し、又、他側端ＳＲにおいて各谷
部３ｂの端部３ｅをそれぞれ内方に折込んで折込み部５
を形成し、この折込み部５にて各谷部３ｂの端部３ｅを
閉塞する。これにより、折込み部４と折込み部５とは互
いに相反する方向に折込まれることになり、各折込み部
４，５の端面４ｅ、５ｅは略三角形状に内方に折込まれ
る。そして、第１図及び第２図に示されるように上記折
込み部４．５の箇所において、波形濾材３と相隣接する
平板濾材２，２とは接着剤６により接合されることによ
り封着部７が形成される。この封着部７は、波形濾材３
の折込み部４．５の端面４ｅ、５ｅと平板濾材２の対向
面２ａとが密着することにより形成される。As shown in FIG. The end portion 3e of the peak portion 3a is closed, and the end portion 3e of each valley portion 3b is folded inward at the other end SR to form a folded portion 5.
The folded portion 5 closes the end portion 3e of each valley portion 3b. As a result, the folding portions 4 and 5 are folded in opposite directions, and the end surfaces 4e and 5e of the folding portions 4 and 5 are folded inward into a substantially triangular shape. As shown in FIGS. 1 and 2, at the folded portion 4.5, the corrugated filter media 3 and the adjacent flat filter media 2, 2 are joined with adhesive 6 to form a sealing area. 7 is formed. This sealing part 7 is connected to the corrugated filter medium 3
It is formed by the end surfaces 4e, 5e of the folded portion 4.5 and the opposing surface 2a of the flat filter medium 2 coming into close contact with each other.
また、波形濾材３の別実施例が第４図に示され、第４図
の波形濾材３′は、その−側端Ｓ、において各山部３ａ
′の端部３ｅ′をそれぞれ隣接する平板濾材２に密接可
能に折曲して折曲部４′を形成し、この折曲部４′にて
各山部３ａ”の端部３ｅ’を閉塞し、又、他側端ＳＲに
おいて各谷部３ｂ’の端部３ｅ′をそれぞれ隣接する平
板濾材２に密接可能に折曲して折曲部５′を形成し、こ
の折曲部５′にて各谷部３ｂ’の端部３ｅ’を閉塞する
。これにより、折曲部４′と折曲部５′とは互いに相反
する方向に折込まれることになり、折曲部４′、５’の
端面４ｅ′、５ｅ”は略半円形をなすように内方に折曲
されることになる。そして、第１図及び第２図と同様に
上記折曲部４′。Another embodiment of the corrugated filter medium 3 is shown in FIG. 4, and the corrugated filter medium 3' in FIG.
The ends 3e' of the ridges 3a' are bent so as to be in close contact with the adjacent flat filter media 2 to form bent portions 4', and the ends 3e' of the peaks 3a'' are closed with the bent portions 4'. In addition, at the other side end SR, the end portion 3e' of each valley portion 3b' is bent so as to be in close contact with the adjacent flat filter medium 2 to form a bent portion 5'. to close the end portion 3e' of each valley portion 3b'.As a result, the bent portion 4' and the bent portion 5' are folded in opposite directions, and the bent portions 4', 5' are folded in opposite directions. The end surfaces 4e' and 5e'' of ' are bent inward to form a substantially semicircular shape. And, as in FIGS. 1 and 2, the bent portion 4'.
５゛の箇所において、波形濾材３′と相隣接する平板濾
材２．２とは接着剤６により接合されることにより封着
部７が形成される。この封着部７は、波形濾材３の折曲
部４’、５’の端面４ｅ′。At a point 5'', the corrugated filter medium 3' and the adjacent flat filter medium 2.2 are joined with adhesive 6 to form a sealing portion 7. This sealing part 7 is the end face 4e' of the bent part 4', 5' of the corrugated filter medium 3.
５ｅ’と平板濾材２の対向面２ａとが密着することによ
り形成される。It is formed by the close contact between 5e' and the opposing surface 2a of the flat filter medium 2.
次に、フィルタエレメントの製造方法について詳細に説
明する。Next, a method for manufacturing a filter element will be described in detail.
まず、第１工程では、第５図に示されるようにロール状
に巻回されたシート状濾材Ｓを両側部にカッタ１０ａ、
１０ａを有したスリッタ１０により切断し、濾材の高さ
Ｈを設定した後、ひだを折り込み易くするため一定ビッ
チＰで筋付けを行う。First, in the first step, as shown in FIG.
After cutting with a slitter 10 having a slitter 10a and setting the height H of the filter medium, creasing is performed with a constant pitch P to make it easier to fold in the pleats.
この筋付は工程は上下一対の筋付はロール１１゜１２が
シート状濾材Ｓを挟むことにより行われ、この場合第６
図に示されるようにロール１１は外周面に一定ピッチＰ
で形成された山部１１ａを、ロール１２は谷部１２ａを
それぞれ有し、山部１１ａと谷部１２ａとが濾材Ｓを挟
んで噛合することにより行われる。This creasing process is performed by sandwiching the sheet filter medium S between the rolls 11 and 12, and in this case, the sixth
As shown in the figure, the roll 11 has a constant pitch P on the outer peripheral surface.
The roll 12 has a trough portion 12a, and the crest portion 11a and the trough portion 12a are engaged with each other with the filter medium S in between.
第２工程では、第５図に示されるように筋付は部Ｓａに
沿ってシート状濾材Ｓを折り込むひだ折り込み工程によ
り、濾材の一側より他側に向かう多数の山部３ａと谷部
３ｂとが連接される。このひだ折り込み工程は、上下一
対の折り込みロール１３．１４がシート状濾材Ｓを挟む
ことにより行われ、この場合第７図に示されるようにロ
ール１３は複数の山部１３ａと谷部１３ｂを、ロール１
４は複数の山部１４ａと谷部１４ｂをそれぞれ有し、山
部１３ａと谷部１４ｂ及び谷部１３ｂと山部１４ａとが
濾材Ｓを挟んでそれぞれ噛合することによりひだ折り込
みが行われる。また、ロール１３には、−側端Ｓｔにお
いて各谷部１３ｂの端部に折り込み用凹部１３凹が形成
され、他側端ＳＲにおいて各谷部１３ｂの端部に折り込
み用凸部１３凸が形成される一方、ロール１４には、−
側１ｆｉｉＳ １においてロール１３の各谷部１３ｂと
噛合する各山部１４ａの端部に折り込み用凸部１４凸が
形成され、他側端ＳＲにおいて各山部１４ａの端部に折
り込み用凹部１４凹が形成されているため、上述したひ
だ折り込み工程と同時に端部閉塞工程が遂行され、波形
濾材３にはその一側端Ｓ［において各山部３ａの端部３
ｅをそれぞれ内方に折込んだ折込み部４が形成され、こ
の折込み部４にて各山部３ａの端部３ｅが閉塞され、又
、他側端ＳＲにおいて各谷部３ｂの端部３ｅをそれぞれ
内方に折込んだ折込み部５が形成され、この折込み部５
にて各谷部３ｂの端部３ｅが閉塞される。In the second step, as shown in FIG. 5, the creases are formed by folding the sheet-like filter medium S along the section Sa, resulting in a large number of peaks 3a and troughs 3b extending from one side of the filter medium to the other side. are concatenated. This folding process is performed by sandwiching the sheet-like filter medium S between a pair of upper and lower folding rolls 13 and 14. In this case, as shown in FIG. roll 1
4 has a plurality of ridges 14a and troughs 14b, and folding is performed when the ridges 13a and troughs 14b and the troughs 13b and ridges 14a engage with each other with the filter medium S in between. Further, in the roll 13, a folding recess 13 is formed at the end of each trough 13b at the negative end St, and a folding convex 13 is formed at the end of each trough 13b at the other end SR. On the other hand, the roll 14 has −
A folding convex part 14 is formed at the end of each peak 14a that engages with each valley 13b of the roll 13 on the side 1fiiS1, and a folding concave 14 is formed at the end of each peak 14a on the other side SR. is formed, the end closing step is performed simultaneously with the above-mentioned pleat folding step, and the corrugated filter medium 3 has an end portion 3a of each peak 3a at one end S[
A folded part 4 is formed by folding each of the ridges 3a inward, and the folded part 4 closes the end 3e of each ridge 3a, and closes the end 3e of each trough 3b at the other end SR. A folded part 5 is formed by folding inward, and this folded part 5
The end portion 3e of each valley portion 3b is closed.
次いで、第３工程では、第８図に示されるように波形濾
材３を挟んで上下に対向して配設された山形ベルト１５
とウオームギア１６とにより波形濾材３を所定圧力で挟
み、波形濾材３の山部３ａ及び谷部３ｂのピッチをそろ
えた後、波形濾材３を加熱器１７内を通して熱硬化させ
て濾材の型崩れ防止を行い、その後、波形濾材３の下方
に配設されたシート状濾材Ｓをスリッタ１０により切断
して濾材の高さＨの平板濾材２を形成し、この平板濾材
２の側端部２Ｓにポットメルト吐出口１８よりホットメ
ルト（接着剤）を塗布しこの平板濾材２を波形濾材３に
重合させて上記折込み部４の箇所において平板濾材２と
波形濾材３とを接合して接合工程を終了する。このとき
、第９図に示されるようにベルト１５と当て板２２によ
り濾材を所定圧力で挟持する。Next, in the third step, as shown in FIG.
After the corrugated filter medium 3 is held between the worm gear 16 and the worm gear 16 under a predetermined pressure and the pitches of the peaks 3a and troughs 3b of the corrugated filter medium 3 are aligned, the corrugated filter medium 3 is passed through a heater 17 to be thermally hardened to prevent the filter medium from losing its shape. After that, the sheet-like filter medium S disposed below the corrugated filter medium 3 is cut by a slitter 10 to form a flat filter medium 2 having a height H, and a pot is attached to the side end 2S of the flat filter medium 2. A hot melt (adhesive) is applied from the melt outlet 18 to polymerize the flat filter medium 2 to the corrugated filter medium 3, and the flat filter medium 2 and the corrugated filter medium 3 are joined at the folded portion 4 to complete the joining process. . At this time, as shown in FIG. 9, the filter medium is held between the belt 15 and the backing plate 22 under a predetermined pressure.
第４工程では、折込み部４の箇所で接合して一体化した
平板濾材２と波形濾材３とを、軸心１９を回転装置２０
により回転させることにより円筒状の軸心１９の周囲に
波形濾材３を内側にして渦巻き状に巻き、このとき、第
１０図＜ａ＞に示されるように巻き始めｒ４Ａ２１にホ
ットメルトを塗布するとともに、波形濾材３の折込み部
５の箇所に第１０図（ｂ）に示されるようにホットメル
ト吐出口１８よりホットメルトを塗布し、この折込み部
５の箇所において相隣接する平板濾材２と波形濾材３と
を接合し第１１図に示すような渦巻き型エレメントＥを
形成する。In the fourth step, the flat filter medium 2 and the corrugated filter medium 3, which are joined and integrated at the folded part 4, are rotated by a rotation device 20 with the axis 19.
The corrugated filter medium 3 is wound spirally around the cylindrical shaft center 19 by rotating it with the inside, and at this time, as shown in FIG. As shown in FIG. 10(b), hot melt is applied to the folded portion 5 of the corrugated filter medium 3 from the hot melt outlet 18, and the adjacent flat plate filter medium 2 and the corrugated filter medium are separated from each other at the folded portion 5. 3 to form a spiral element E as shown in FIG.
また、積層型エレメントＥを形成する場合には折込み部
４の箇所で接合して一体化した平板濾材２と波形濾材３
とを、第１２図に示すようにスリッタ２３により所定寸
法に切断して給紙装置２４により積層し、折込み部５の
箇所で平板濾材２側にホットメルト吐出口１８よりホッ
トメルトを塗布し、この折込み部５の箇所において相隣
接する平板濾材２と波形濾材３とを押え板２５により押
圧して接合し第１３図に示すような積層型エレメントＥ
を形成する。In addition, when forming a laminated element E, the flat filter medium 2 and the corrugated filter medium 3 are joined at the folded portion 4 and integrated.
as shown in FIG. 12, are cut into predetermined dimensions by a slitter 23 and stacked by a paper feeder 24, and hot melt is applied from the hot melt outlet 18 to the flat filter medium 2 side at the folded part 5, At the folded portion 5, the adjacent flat plate filter medium 2 and the corrugated filter medium 3 are pressed and joined by the presser plate 25 to form a laminated element E as shown in FIG.
form.
第１図乃至第１３図に示したフィルタエレメントの製造
方法においては、第３図に示す波形濾材３を例にとって
説明したが、第４図に示す波形濾材３′の場合も全く同
様の製造工程になる。The manufacturing method of the filter element shown in FIGS. 1 to 13 has been explained using the corrugated filter medium 3 shown in FIG. 3 as an example, but the manufacturing process is exactly the same for the corrugated filter medium 3' shown in FIG. become.
次に、本発明に係るフィルタエレメントの製造方法によ
り製造したフィルタエレメントの実験結果を従来のフィ
ルタエレメントとの比較において説明する。Next, experimental results of a filter element manufactured by the filter element manufacturing method according to the present invention will be explained in comparison with a conventional filter element.
このとき、使用したダストはＪＩＳ
２８９０１の８種であり、テスト方法はＪＩＳＤ１６１
２に準じて行った。試験空気量は６．５ｍ３／１ｌｔｎ
である。At this time, the dust used was 8 types of JIS 28901, and the test method was JISD161.
It was carried out according to 2. Test air volume is 6.5m3/1ltn
It is.
第１４図は、供給ダスト量（ｇ）に対する濾過効率（％
）の変化を示したものであり、同図において、横軸が供
給ダスト量（ｇ）、縦軸が濾過効率（％）であり、破線
が従来のフィルタエレメントを示し、実線が本発明のフ
ィルタエレメントを示したものである。第１４図で明ら
かなように、濾過効率は、本発明のフィルタエレメント
が従来のものに比べて１％以上上昇している。Figure 14 shows the filtration efficiency (%) with respect to the amount of dust supplied (g).
), in which the horizontal axis is the amount of dust supplied (g), the vertical axis is the filtration efficiency (%), the broken line represents the conventional filter element, and the solid line represents the filter element of the present invention. This shows the elements. As is clear from FIG. 14, the filtration efficiency of the filter element of the present invention is increased by more than 1% compared to the conventional filter element.
また、第１５図は、エアの通気量（Ｊ ／ｍｉｎ ）に
対する通気抵抗（１ｉＡｑ ）の変化を示したものであ
り、同図において、横軸がエア通気量（ｊ！／１ｉｎ
） 、縦軸が通気抵抗（ｎＩＩＡｑ ）であり、破線が
従来のフィルタエレメントを示し、実線が本発明のフィ
ルタエレメントを示したものである。第１５図で明らか
なように、通気抵抗は本発明のフィルタエレメントが従
来のものに比べて飛躍的に減少している。In addition, Fig. 15 shows the change in ventilation resistance (1iAq) with respect to the airflow rate (J/min), and in the figure, the horizontal axis represents the airflow rate (j!/1in).
), the vertical axis is the ventilation resistance (nIIAq), the broken line shows the conventional filter element, and the solid line shows the filter element of the present invention. As is clear from FIG. 15, the ventilation resistance of the filter element of the present invention is dramatically reduced compared to the conventional filter element.
以上、実施例の説明から明らかなように、本発明は、シ
ート状の平板濾材と、多数の山部て谷部を連設して波形
状に形成した波形濾材とからなるフィルタエレメントの
製造方法において、波形濾材の一側端にて各山部をそれ
ぞれ内方に折込んだ折込み部又は折曲部にて各山部の端
部を閉塞するとともに、他側端にて上記各山部に隣接す
る各谷部をそれぞれ内方に折込んだ折込み部又は折曲部
にて各谷部の端部を閉塞できるため、上記各山部、谷部
の両端部を接着剤等の充填シール材にて閉塞する必要が
なく、この両端部を濾過面として活用することができる
。したがって、本発明の製造方法によるフィルタエレメ
ントは濾過面積を大きくとることができ、これにより濾
過性能の向上を図ることができるとともに、濾材単位面
積当り捕集するダスト量は一定であるため濾過面積が多
くとれた分だけエレメントのロングライフ化が可能とな
る。As is clear from the description of the examples above, the present invention provides a method for manufacturing a filter element comprising a sheet-like flat filter medium and a corrugated filter medium formed in a wave shape by connecting a large number of peaks and troughs. At one end of the corrugated filter material, each ridge is folded inward to close the end of each ridge with a folded part or a bent part, and at the other end, each of the ridges is closed. Since the ends of each trough can be closed with the folded part or bent part where each adjacent trough is folded inward, both ends of each crest and trough can be filled with adhesive or other sealing material. There is no need to close the filter at both ends, and both ends can be used as filter surfaces. Therefore, the filter element manufactured by the manufacturing method of the present invention can have a large filtration area, thereby improving filtration performance, and since the amount of dust collected per unit area of the filter medium is constant, the filtration area can be increased. The more you can get, the longer the life of the element becomes possible.
また、本発明の製造方法によるフィルタエレメントにお
いては、濾過流量が同一の比較においては、濾過面積が
多い分だけエレメントを通過する流速がゆるやかになり
、その結果濾過効率の上昇につながる。Further, in the filter element manufactured by the manufacturing method of the present invention, when comparing the filtration flow rate at the same rate, the flow rate passing through the element becomes slower due to the larger filtration area, which results in an increase in filtration efficiency.
さらに本発明の製造方法によるフィルタエレメントによ
れば、エレメントの各山部、谷部の両端部を充填シール
材にて閉塞されていないため、被濾過流体がエレメント
に流入する際及びクリーンサイドに流出する際の通気抵
抗の低減を図ることができる。Furthermore, according to the filter element manufactured by the manufacturing method of the present invention, both ends of each peak and valley of the element are not closed with a filling sealing material, so when the fluid to be filtered flows into the element and flows out to the clean side. It is possible to reduce the ventilation resistance when doing so.
第１図は本発明に係るフィルタエレメントの製造方法に
より製造したフィルタエレメントの斜視図、第２図は同
フィルタエレメントの断面図、第３図は同フィルタエレ
メントの波形濾材の斜視図、第４図は同フィルタエレメ
ントの波形濾材の別実施例の斜視図、第５図乃至第１３
図は本発明に係るフィルタエレメントの製造方法の工程
説明図、第１４図及び第１５図は従来のフィルタエレメ
ントと本発明の製造方法により製造したフィルタエレメ
ントについての濾過性能の比較試験結果を示す図、第１
６図は従来のフィルタエレメントの斜視図、第１７図は
その作用説明図である。
１・・・フィルタエレメント、２・・・平板濾材、３・
・・波形濾材、４・・・折込み部、５・・・折込み部、
６・・・接着剤、７・・・封着部、１１，１２，１３．
１４・・・ロール、１５・・・山形ベルト、１６・・・
ウオームギア、１８・・・ホットメルト吐出口、１９・
・・軸心、２０・・・回転装置。
出願人代理人 石 川 泰 男第 ８ ２
第 ９ 図
（ａ）
（ｂ）
第 ｌＯ図
男 １１ ズ
場 １３１
５０ １００ １５０ （ｇ）供給ダスト
量
第 １４ 図
１ ２ ３ ４ （ｔ／ｍ１ｎ）通気金
興１５図
耳 １６ ズ
璃 １７ 区FIG. 1 is a perspective view of a filter element manufactured by the filter element manufacturing method according to the present invention, FIG. 2 is a sectional view of the filter element, FIG. 3 is a perspective view of a corrugated filter medium of the filter element, and FIG. 4 5 to 13 are perspective views of other embodiments of the corrugated filter medium of the same filter element.
14 and 15 are diagrams showing comparative test results of filtration performance of a conventional filter element and a filter element manufactured by the manufacturing method of the present invention. , 1st
FIG. 6 is a perspective view of a conventional filter element, and FIG. 17 is an explanatory diagram of its operation. 1... Filter element, 2... Flat filter medium, 3.
... Corrugated filter medium, 4... Folded part, 5... Folded part,
6...Adhesive, 7...Sealing part, 11, 12, 13.
14...Roll, 15...Chevron belt, 16...
Worm gear, 18...Hot melt discharge port, 19.
...Axis center, 20...Rotating device. Applicant's representative Yasushi Ishikawa No. 8 2 No. 9 (a) (b) No. 1 O No. 11 Z field 131 50 100 150 (g) Supply dust amount No. 14 (t/m1n) Ventilation Kinheung 15 tu ears 16 Zuri 17 wards
Claims (1)
多数の山部と谷部を連設して波形状に形成した波形濾材
とを交互に配置したフィルタエレメントの製造方法にお
いて、シート状濾材に直線状の筋付けを行いこの筋付け
部に沿って折曲して多数の山部と谷部を連設するひだ折
り込み工程と、このひだ折り込み工程にて形成した波形
濾材の一側端にて各山部をそれぞれ内方に折込むか隣接
する平板濾材側に折曲し、この折込み部又は折曲部にて
各山部の端部を閉塞し、他側端にて上記各山部に隣接す
る各谷部をそれぞれ内方に折込むか隣接する平板濾材側
に折曲し、この折込み部又は折曲部にて各谷部の端部を
閉塞する端部閉塞工程と、上記折込み部又は折曲部の箇
所において波形濾材と相隣接する平板濾材とを接合する
接合工程とを備えたことを特徴とするフィルタエレメン
トの製造方法。 ２、上記ひだ折り込み工程と端部閉塞工程とを同時に行
うことを特徴とする特許請求の範囲第１項記載のフィル
タエレメントの製造方法。[Claims] 1. A filter in which sheet-shaped flat filter media and corrugated filter media formed by bending the sheet-shaped filter media and forming a wave shape with a large number of consecutive peaks and valleys are arranged alternately. In the manufacturing method of the element, there is a folding process in which a sheet-like filter medium is marked with linear lines and then bent along the lines to create a number of peaks and valleys. At one end of the formed corrugated filter medium, each ridge is folded inward or bent toward the adjacent flat filter medium, and the end of each ridge is closed at this folded or bent portion, and then An end in which each of the valleys adjacent to each of the peaks is folded inward at the side end or bent toward the adjacent flat filter medium, and the end of each valley is closed at the folded or bent part. A method for producing a filter element, comprising: a step of closing the portion; and a step of joining a corrugated filter medium and an adjacent flat filter medium at the folded portion or the bent portion. 2. The method for manufacturing a filter element according to claim 1, wherein the folding step and the end closing step are performed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2876988A JPH01207112A (en) | 1988-02-12 | 1988-02-12 | Production of filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2876988A JPH01207112A (en) | 1988-02-12 | 1988-02-12 | Production of filter element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01207112A true JPH01207112A (en) | 1989-08-21 |
Family
ID=12257611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2876988A Pending JPH01207112A (en) | 1988-02-12 | 1988-02-12 | Production of filter element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01207112A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259941A (en) * | 2007-04-11 | 2008-10-30 | Nippon Yakin Kogyo Co Ltd | Diesel particulate filter and its manufacturing method |
| JP2011530402A (en) * | 2008-08-06 | 2011-12-22 | ドナルドソン カンパニー，インコーポレイティド | Z-type media, method and apparatus including fluted closure |
| US8268053B2 (en) | 1996-04-26 | 2012-09-18 | Donaldson Company, Inc. | Fluted filter media |
| US8512499B2 (en) | 2002-07-10 | 2013-08-20 | Donaldson Company, Inc. | Fluted filter medium and process for its manufacture |
| CN105645168A (en) * | 2016-01-05 | 2016-06-08 | 蚌埠市雷泰滤清器设备有限公司 | Folding and bonding integrated mechanism for inner core of filter |
| CN108909044A (en) * | 2018-08-21 | 2018-11-30 | 湖州银轴智能装备有限公司 | Creped paper die-moulding worktable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58139720A (en) * | 1982-02-16 | 1983-08-19 | Matsushita Electric Ind Co Ltd | Gas filter |
| JPS61187912A (en) * | 1985-02-18 | 1986-08-21 | Matsushita Electric Ind Co Ltd | Diesel particulate trap |
-
1988
- 1988-02-12 JP JP2876988A patent/JPH01207112A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58139720A (en) * | 1982-02-16 | 1983-08-19 | Matsushita Electric Ind Co Ltd | Gas filter |
| JPS61187912A (en) * | 1985-02-18 | 1986-08-21 | Matsushita Electric Ind Co Ltd | Diesel particulate trap |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8268053B2 (en) | 1996-04-26 | 2012-09-18 | Donaldson Company, Inc. | Fluted filter media |
| US8460442B2 (en) | 1996-04-26 | 2013-06-11 | Donaldson Company, Inc. | Fluted filter media |
| US8512499B2 (en) | 2002-07-10 | 2013-08-20 | Donaldson Company, Inc. | Fluted filter medium and process for its manufacture |
| JP2008259941A (en) * | 2007-04-11 | 2008-10-30 | Nippon Yakin Kogyo Co Ltd | Diesel particulate filter and its manufacturing method |
| JP2011530402A (en) * | 2008-08-06 | 2011-12-22 | ドナルドソン カンパニー，インコーポレイティド | Z-type media, method and apparatus including fluted closure |
| CN105645168A (en) * | 2016-01-05 | 2016-06-08 | 蚌埠市雷泰滤清器设备有限公司 | Folding and bonding integrated mechanism for inner core of filter |
| CN108909044A (en) * | 2018-08-21 | 2018-11-30 | 湖州银轴智能装备有限公司 | Creped paper die-moulding worktable |
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