JPH03127601A - Filter for working solution for metallic chips or the like - Google Patents
Filter for working solution for metallic chips or the likeInfo
- Publication number
- JPH03127601A JPH03127601A JP1263642A JP26364289A JPH03127601A JP H03127601 A JPH03127601 A JP H03127601A JP 1263642 A JP1263642 A JP 1263642A JP 26364289 A JP26364289 A JP 26364289A JP H03127601 A JPH03127601 A JP H03127601A
- Authority
- JP
- Japan
- Prior art keywords
- rotating drum
- drum
- conveyor
- metal chips
- hollow shaft
- 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
- 239000012224 working solution Substances 0.000 title 1
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 3
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は金属切粉等の加工液の濾過装置に関し、具体
的には回転ドラムの回転に際して偏心性向の生じない回
転力を常に回転ドラムに付与するようにした濾過装置に
おける回転装置に係る。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a filtration device for machining liquid such as metal chips, and more specifically, the present invention relates to a filtration device for machining liquid such as metal chips, and more specifically, it applies rotational force that does not cause eccentricity to the rotary drum at all times when the rotary drum rotates. The present invention relates to a rotating device in a filtration device that is configured to provide a filter.
（従来の技術）
金属切粉等の内在する加工液の濾過装置としては、特公
昭８０−８２１１４号で開示されているように濾過ドラ
ム内に金属切粉等を分離残置させる内式置型と特開昭６
４−４３３２０号で開示されている濾過ドラム外に金属
粉等を残置させる外式置型がある。(Prior art) As a filtration device for machining liquid containing metal chips, etc., there are two types: an internal type that separates and leaves metal chips etc. in a filtration drum, as disclosed in Japanese Patent Publication No. 82114/1980, and a special type. Kaisho 6
There is an external type disclosed in Japanese Patent No. 4-43320 in which metal powder and the like are left outside the filter drum.
（発明が解決しようとする課題）
前記した特開昭６４−４３３２０号で開示されている外
装置型濾過装置の場合第５図示のように、濾過ドラム２
の回転軸の一方が丸棒回転軸２Ｄで、他方は環状回転Ｉ
ｔｋ２Ｆとして形成されているので、前記回転軸面とそ
れぞれの軸受面との間には偏心荷重が常に生じており、
この偏心荷重を原因とする濾過ドラム２の回転性向は偏
心方向に傾斜するものとなるので特に前記した環状回転
軸２Ｆの環状軸受部３Ｂが円滑に回転せず、前記ドラム
の運転を行っているチェーン７の運行に支障をきたす事
があった。(Problem to be Solved by the Invention) In the case of the external device type filtration device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 64-43320, as shown in FIG.
One of the rotation axes is a round bar rotation axis 2D, and the other is an annular rotation axis I.
Since it is formed as tk2F, an eccentric load is always generated between the rotating shaft surface and each bearing surface,
The rotational tendency of the filtration drum 2 due to this eccentric load is inclined in the eccentric direction, so that the annular bearing portion 3B of the annular rotating shaft 2F does not rotate smoothly, causing the drum to operate. The operation of Chain 7 was disrupted.
また前記した環状軸受部３Ｂが濾過ドラムの偏心性向の
回転を原因とする該部の偏磨耗により前記ドラムに対す
るパツキン４の当りが均一でなくなり濾過精度を低下さ
せるおそれがあった。Furthermore, due to uneven wear of the annular bearing portion 3B due to the eccentric rotation of the filter drum, there is a risk that the packing 4 will not contact the drum uniformly, resulting in a decrease in filtration accuracy.
（ｖＪ題を解決するための手段）
この出願の発明は、前記した外装置型濾過装置の改良に
係り、回転ドラムは回転ドラムの長手方向中心に取付け
た軸受を介して固定した中空軸に枢支させることにより
、回転ドラムに対して偏心性向を生じさせないように構
成したものである。(Means for Solving the VJ Problem) The invention of this application relates to an improvement of the external device type filtration device described above, in which the rotating drum is pivoted on a hollow shaft fixed via a bearing attached to the longitudinal center of the rotating drum. By supporting the rotary drum, it is constructed so as not to cause eccentricity with respect to the rotating drum.
（実施例）
この発明の実施例を添付図面を参照にしながら説明すれ
ば次のとおりである。(Example) An example of the present invention will be described below with reference to the accompanying drawings.
第１図において符号１は回転ドラムで周面にスクリーン
１１が設けられており、このドラム１は両端を機枠４に
固定した中空軸２に枢支されている。３はスクリーン１
１の洗浄装置、４は機枠で上方に傾斜する底板４１とこ
の底板の両側から直立する枠板４３．４４で形成されて
おり、この機枠内の所望位置に前記回転ドラム１が回転
自在に取付けられている。なお底板４１と両枠板４３．
４４とで閉塞部が形成されており、この閉塞部はダーテ
ィ液の分ｍ室Ｃとして機能するものである。またこの機
枠内に駆動部５が設けられておりこの駆動部５によって
前記した回転ドラム１は掻き板５１を備えたコンベヤ５
２を介して回転させられる。６はクリーンタンクで回転
ドラム１内に分離されたクリーン液の貯留タンクでクー
ラントポンプ７を介して該クリーン液は加工装置系に再
送される。８はダーティ液（金属粉等を内在する加工液
）のレベルスイッチでダーティ液の流入レベルを検知す
るものである。なお他の符号４５はダーティ液の流入口
、４２は金属粉Ｐの載置台、８１はレベル検知針、９は
金属粉の貯留タンクをそれぞれ表わす。In FIG. 1, reference numeral 1 denotes a rotating drum having a screen 11 on its circumferential surface, and this drum 1 is pivotally supported on a hollow shaft 2 having both ends fixed to a machine frame 4. 3 is screen 1
The cleaning device 1, 4, is a machine frame, and is formed by a bottom plate 41 that slopes upward, and frame plates 43 and 44 that stand upright from both sides of this bottom plate, and the rotating drum 1 can be freely rotated at a desired position within the machine frame. installed on. Note that the bottom plate 41 and both frame plates 43.
44 forms a closed section, and this closed section functions as a separate chamber C for the dirty liquid. Further, a drive unit 5 is provided within this machine frame, and the drive unit 5 moves the above-mentioned rotating drum 1 to a conveyor 5 equipped with a scraper plate 51.
2. Reference numeral 6 denotes a clean tank, which is a storage tank for storing clean liquid separated within the rotary drum 1, and the clean liquid is retransmitted to the processing equipment system via a coolant pump 7. 8 is a level switch for dirty liquid (processing liquid containing metal powder, etc.) that detects the inflow level of the dirty liquid. The other reference numerals 45, 42, 81, and 9 respectively represent an inlet for dirty liquid, a mounting table for metal powder P, and a level detection needle 9.
この発明の他の実施例を第３図により説明すれば次のと
おりである。この実施例は底板４１の円弧状の底板４１
°にマグネットＭを取付けた金属粉の凝集装置を示すも
のである。なおこのマグネットＭは必要に応じて電磁石
等が採用できる。なお載置台およびマグネット等の構成
は特にこの実施例以外にも適用できるものである。Another embodiment of the present invention will be described below with reference to FIG. In this embodiment, the bottom plate 41 has an arc-shaped bottom plate 41.
This figure shows a metal powder agglomeration device with a magnet M attached to it. Note that as this magnet M, an electromagnet or the like can be adopted as necessary. Note that the configurations of the mounting table, magnets, etc. can be applied to systems other than this embodiment.
第２図を参照にしながらこの発明に係る回転ドラムの回
転装置を説明すれば次のとおりである。Referring to FIG. 2, the rotary drum rotating device according to the present invention will be explained as follows.
回転ドラム１は両側板１２．１３でドラム状の胴部を形
威し、この胴周に濾過層のスクリーン１１を取付け、ま
た両側板１２ｊ３のそれぞれの中央部に軸受１４，１５
を取付けた構造とされている。また両側板のそれぞれの
内側フランジ部の所望部位にコンベア５２のためのキャ
リヤ部１６．１８が所望数設けられている。また１７は
クリーン液の送出孔を示す。The rotating drum 1 has a drum-shaped body with side plates 12 and 13, a filter layer screen 11 is attached to the circumference of the body, and bearings 14 and 15 are installed in the center of each side plate 12j3.
It is said that the structure is equipped with. Further, a desired number of carrier portions 16, 18 for the conveyor 52 are provided at desired locations on the inner flange portions of each side plate. Further, 17 indicates a clean liquid delivery hole.
そしてこの回転ドラム１は、それぞれの軸受１４ｊ５を
介して中空軸２に回転自在に枢支されている。The rotating drum 1 is rotatably supported on the hollow shaft 2 via respective bearings 14j5.
中空軸２は機枠４の枠板４３．４４のほぼ中央部に両端
部を固定されるようにして該機枠内に取付けられており
、しかもこの中空軸２の所望位置にスクリーンの洗浄装
置３が取付けられている。洗浄装置３は特に図示しない
が中空軸２の中空内を矢印で示す洗浄液の供給装置を介
して作動させられる。なお３１はスクリーン面に対向す
るように形成された複数個の洗浄液の噴出口を示す。The hollow shaft 2 is installed within the machine frame 4 with both ends fixed to approximately the center of the frame plates 43 and 44 of the machine frame 4, and a screen cleaning device is installed at a desired position on the hollow shaft 2. 3 is installed. Although not particularly shown, the cleaning device 3 is operated via a cleaning liquid supply device shown by an arrow inside the hollow of the hollow shaft 2. Note that 31 indicates a plurality of cleaning liquid jet ports formed to face the screen surface.
機枠４のクリーンタンク側の枠板４４には円筒形の封密
部材４８が取付けられており、この部材から回転ドラム
側に延出ししかもドラムの側板に対向するように形成し
たフランジ部４６の周面にはシール部材４９が設けられ
ている。なお４７は回転ドラム内からクリーンタンクへ
クリーン液を送り出すために前記封密部材４８に設けた
退出用開孔を示す。A cylindrical sealing member 48 is attached to the frame plate 44 of the machine frame 4 on the clean tank side, and a flange portion 46 extending from this member toward the rotating drum side and facing the side plate of the drum. A seal member 49 is provided on the circumferential surface. Note that reference numeral 47 indicates an exit hole provided in the sealing member 48 in order to send out the clean liquid from inside the rotating drum to the clean tank.
この発明の他の実施例を第４図を参照にしながら例示す
れば次のとおりである。Another embodiment of the present invention will be illustrated below with reference to FIG.
第４図 （ａ）図示のものは、掻き板を備えたコンベア
５２を回転ドラムｌの下側に取付けしかも前記ドラムの
駆動をモータ等の独立した駆動源りによって行うように
したｔｎＡ装置であり、この装置の場合は特に図示しな
いが、回転ドラムを複数個並設することができる。FIG. 4 (a) The one shown is a tnA device in which a conveyor 52 equipped with a scraping plate is attached to the underside of a rotating drum l, and the drum is driven by an independent drive source such as a motor. In the case of this device, although not particularly shown, a plurality of rotating drums can be arranged in parallel.
第４図 （ｂ）図示のものは回転ドラムを所望数設置す
ると共にコンベア５２により前記ドラムを駆動するよう
にしたものである。FIG. 4(b) shows a system in which a desired number of rotating drums are installed and the drums are driven by a conveyor 52.
上記した二つの実施例はこれを任意に変更し、例えば再
実施例のうちの回転ドラムの駆動方法およびコンベアの
設置方法とを選択的に採用することができるものである
。The two embodiments described above can be modified as desired, and for example, the method of driving the rotating drum and the method of installing the conveyor in the second embodiment can be selectively adopted.
第１図および特に第２図を参照にしながらこの発明の詳
細な説明すれば次のとおりである。The present invention will now be described in detail with reference to FIG. 1 and particularly FIG. 2.
第１図においてダーティ液の流入口４５より流入したダ
ーティ液は機枠内の分離室Ｃ内に流入する。このダーテ
ィ液中にコンベア５２を介して回転している回転ドラム
１は第２図で特に明らかなようにスクリーン１１によっ
てクリーン液のみをこの回転ドラム１内に導入し、分離
した金属粉等は底板の底部４１′上に沈澱する。このよ
うにして分離されたクリーン液は回転ドラムの送出孔１
７．封密部材の開孔４７を通ってクリーンタンク６に送
出される。In FIG. 1, the dirty liquid flowing from the dirty liquid inlet 45 flows into the separation chamber C within the machine frame. As is particularly clear in FIG. 2, the rotary drum 1 which is being rotated into this dirty liquid via a conveyor 52 introduces only the clean liquid into the rotary drum 1 through a screen 11, and the separated metal powder etc. It settles on the bottom 41'. The clean liquid separated in this way is delivered to the delivery hole 1 of the rotating drum.
7. It is delivered to the clean tank 6 through the opening 47 in the sealing member.
そして円弧状の底部４１’上の分離した金属粉等Ｐは回
転ドラム１の回転と掻き板５１の移動とに機能するよう
に形成させたコンベア５２の作動にともなって該コンベ
ア５２に取付けた掻き板５１によって底板４１の終端部
方向に掻きあげられ終端に設けた載置台４２上に堆積し
、載置台の形状を脱水載置台に対応する所用時間経過後
に堆積先端より脱水状態の金属粉として貯留タンク９内
に排出される。Then, the separated metal powder, etc., P on the arc-shaped bottom 41' is removed by the scraper attached to the conveyor 52, which is formed to rotate the rotary drum 1 and move the scraper plate 51. The metal powder is scraped up toward the terminal end of the bottom plate 41 by the plate 51 and deposited on the mounting table 42 provided at the terminal end, and after a time period corresponding to the shape of the mounting table has elapsed, the metal powder is stored as dehydrated metal powder from the tip of the deposit. It is discharged into tank 9.
回転ドラム１内に中空軸２を介して設けた洗浄装置３は
ドラムの胴周面に張設されているスクリーン１１の全山
部を浄化、清掃する機能を有している。A cleaning device 3 provided within the rotary drum 1 via a hollow shaft 2 has the function of purifying and cleaning all the peaks of a screen 11 stretched over the circumferential surface of the drum.
この発明は回転ドラムを回転ドラムの長子方向中心に取
付けた軸受を介して、機枠内に固定した中空軸に枢支し
ているので駆動用コンベアによる回転ドラムの回転力を
前記軸に対して均一に負荷することとなるので前記した
回転ドラムに対して常に均一な力と偏心性向のない正常
回転を行なわせることができる。In this invention, the rotating drum is pivotally supported on a hollow shaft fixed in the machine frame via a bearing attached to the center in the longitudinal direction of the rotating drum, so that the rotational force of the rotating drum by the driving conveyor is applied to the shaft. Since the load is applied uniformly, the above-described rotating drum can always be rotated normally with a uniform force and no tendency to eccentricity.
またこの発明は上記した回転ドラムの正常回転が得られ
る結果として回転ドラムとシール部材間の接触に際して
の偏摩耗を生ずることがなくシール性を継続して維持す
ることができる。Further, as a result of the above-described normal rotation of the rotary drum, the present invention can continuously maintain sealing performance without causing uneven wear when the rotary drum and the seal member come into contact with each other.
その上この発明は固定した中空軸内を介してスクリーン
の洗浄装置を作動できるので洗浄気体まｋは送入用配管
のｋめの空間を必要としないものである。Moreover, the invention allows the cleaning device for the screen to be operated through a fixed hollow shaft, so that the cleaning gas does not require a space in the supply pipe.
更にこの発明はダーティ液に含まれる金属粉等のうち切
粉が磁性体である場合には機枠花部にマグネットを配設
することにより浮遊する磁性切粉の凝集を強制的に行な
い微細切粉のスクリーン面への付着を緩和させることが
できる。Furthermore, when the chips are magnetic among the metal powders contained in the dirty liquid, a magnet is placed in the flower part of the machine frame to forcibly aggregate the floating magnetic chips, resulting in fine cuts. It can reduce the adhesion of powder to the screen surface.
更にまたこの発明は分離した金属粉等を掻き板による移
送終端部の載置台に所望時間堆積させておき、これ等金
属粉等に付着している水分の脱水を行ない、金属粉等の
脱水と加工液の再滴下返送による液の節約とを行えるも
のである。Furthermore, the present invention allows the separated metal powder, etc. to be deposited on a mounting table at the end of the transfer by a scraping plate for a desired period of time, and dehydrates the water adhering to the metal powder, etc. It is possible to save liquid by returning the machining liquid to drip again.
その上この発明はダーティ液の濾過流量、濾過装置の設
置スペース等を勘案して、回転ドラムを所要数設置する
とか、コンベアを回転ドラムの下側に取付けるとか、あ
るいは回転ドラムを直接駆動するとかの設計変更を行う
ことができるものである。Furthermore, this invention takes into account the filtration flow rate of dirty liquid, the installation space of the filtration device, etc., and installs the required number of rotating drums, attaches a conveyor to the underside of the rotating drum, or directly drives the rotating drum. The design can be changed.
第１図はこの発明の要部断面図で （ａ）は正面図、（
ｂ）は側面図、第２図は回転ドラムの回転装置で （ａ
）は正面断面図、（ｂ）は （ａ）Ｉ−１線側面図、第
３図はこの発明の他の実施例を示す要部断面説明図、第
４図 （ａ）、（ｂ）はいずれもこの発明の他の実施例
を示し、第５図は従来例の要部説明図。
１・・・回転ドラム ２・・・中空軸 ３・・・洗
浄装置４・・・機枠
１２．１３・・・回転ド
４１・・・底板
５２・・・コンベヤ
Ｍ・・・マグネット
１１・・・スクリーン
ラムの側板 １４．１５・・・軸受
４１ ・・・底部 ４２・・・載置台Ｃ・・・分離
室 Ｄ＃・・駆動源
Ｐ・・・金属粉Figure 1 is a sectional view of the main parts of this invention, (a) is a front view, (a) is a front view, (
b) is a side view, and Fig. 2 is the rotating device of the rotating drum (a
) is a front sectional view, (b) is a side view taken along the line I-1 (a), FIG. All of them show other embodiments of the present invention, and FIG. 5 is an explanatory diagram of the main part of the conventional example. 1... Rotating drum 2... Hollow shaft 3... Cleaning device 4... Machine frame 12.13... Rotating door 41... Bottom plate 52... Conveyor M... Magnet 11...・Side plate of screen ram 14.15... Bearing 41... Bottom 42... Mounting table C... Separation chamber D#... Drive source P... Metal powder
Claims (5)
ムの長手方向中心に取付けた軸受を介して、機枠内に固
定した中空軸に枢支したことを特徴とする金属切粉等の
加工液の濾過装置。(1) Processing of metal chips, etc., characterized in that a rotating drum with a screen on its circumferential surface is pivotally supported on a hollow shaft fixed within the machine frame via a bearing attached to the longitudinal center of the rotating drum. Liquid filtration equipment.
ーンを中空軸に形成した洗浄装置によって洗浄するよう
にしたことを特徴とする金属切粉等の加工液の濾過装置
における洗浄装置。(2) A cleaning device in a filtration device for machining fluids such as metal chips, characterized in that the screen of the rotating drum according to claim 1 is cleaned by a cleaning device formed on a hollow shaft.
円弧状底部にマグネットを設けたことを特徴とする金属
粉の凝集装置。(3) A metal powder agglomerating device characterized in that a magnet is provided at the arc-shaped bottom of the bottom plate forming a filtering device for machining liquid such as metal chips.
の載置台をこの載置台上の湿金属粉が脱水するまで残置
するように形成したことを特徴とする脱水載置台。(4) A dehydration mounting table characterized in that a mounting table for metal powder forming a filtration device for machining liquid such as metal chips is formed so as to remain thereon until the wet metal powder on this mounting table is dehydrated.
濾過装置において、回転ドラムを独立した駆動源で駆動
するようにしたことを特徴とする金属切粉等の加工液の
濾過装置。（６）特許請求の範囲第１項記載の回転ドラ
ムを備えた濾過装置において、コンベアを回転ドラムの
下側に取付けたことを特徴とする金属切粉等の加工液の
濾過装置。(5) A filtration device for processing fluids such as metal chips, etc., which is equipped with a rotating drum according to claim 1, wherein the rotating drum is driven by an independent drive source. (6) A filtration device for processing fluids such as metal chips, which is equipped with a rotating drum as set forth in claim 1, characterized in that a conveyor is attached to the underside of the rotating drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1263642A JPH03127601A (en) | 1989-10-09 | 1989-10-09 | Filter for working solution for metallic chips or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1263642A JPH03127601A (en) | 1989-10-09 | 1989-10-09 | Filter for working solution for metallic chips or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03127601A true JPH03127601A (en) | 1991-05-30 |
Family
ID=17392322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1263642A Pending JPH03127601A (en) | 1989-10-09 | 1989-10-09 | Filter for working solution for metallic chips or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03127601A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07227507A (en) * | 1994-02-18 | 1995-08-29 | Shisuto:Kk | Filter |
| US8163455B2 (en) | 2008-03-14 | 2012-04-24 | Ricoh Company, Ltd. | Toner for image formation, method for producing toner, container containing toner, two-component developer, process cartridge, and image forming method |
| US8932788B2 (en) | 2007-10-18 | 2015-01-13 | Ricoh Company, Ltd. | Toner, developer, and image forming method |
| CN108159818A (en) * | 2017-12-27 | 2018-06-15 | 庄伟峰 | A kind of air cleaning facility of handware atelier environmental protection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61136409A (en) * | 1984-12-06 | 1986-06-24 | Trinity Ind Corp | Apparatus for filtering cutting oil |
| JPH01139113A (en) * | 1987-11-25 | 1989-05-31 | Nippon Shisutomeeshiyon Eng Kk | Filter device |
-
1989
- 1989-10-09 JP JP1263642A patent/JPH03127601A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61136409A (en) * | 1984-12-06 | 1986-06-24 | Trinity Ind Corp | Apparatus for filtering cutting oil |
| JPH01139113A (en) * | 1987-11-25 | 1989-05-31 | Nippon Shisutomeeshiyon Eng Kk | Filter device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07227507A (en) * | 1994-02-18 | 1995-08-29 | Shisuto:Kk | Filter |
| JP2580482B2 (en) * | 1994-02-18 | 1997-02-12 | 株式会社シスト | Filtration device |
| US8932788B2 (en) | 2007-10-18 | 2015-01-13 | Ricoh Company, Ltd. | Toner, developer, and image forming method |
| US8163455B2 (en) | 2008-03-14 | 2012-04-24 | Ricoh Company, Ltd. | Toner for image formation, method for producing toner, container containing toner, two-component developer, process cartridge, and image forming method |
| CN108159818A (en) * | 2017-12-27 | 2018-06-15 | 庄伟峰 | A kind of air cleaning facility of handware atelier environmental protection |
| CN108159818B (en) * | 2017-12-27 | 2020-10-30 | 泉州市惠安碧益茶业有限公司 | Environment-friendly air purification equipment for hardware manufacturing workshop |
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