JP2000237929A - Filter device provided with back flow washing function - Google Patents

Filter device provided with back flow washing function

Info

Publication number
JP2000237929A
JP2000237929A JP11042513A JP4251399A JP2000237929A JP 2000237929 A JP2000237929 A JP 2000237929A JP 11042513 A JP11042513 A JP 11042513A JP 4251399 A JP4251399 A JP 4251399A JP 2000237929 A JP2000237929 A JP 2000237929A
Authority
JP
Japan
Prior art keywords
tank
cutting fluid
filter
filtration
storage tank
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
Application number
JP11042513A
Other languages
Japanese (ja)
Inventor
Kazuo Koike
嘉壽男 小池
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.)
Koike Engineering & Service Kk
Original Assignee
Koike Engineering & Service Kk
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 Koike Engineering & Service Kk filed Critical Koike Engineering & Service Kk
Priority to JP11042513A priority Critical patent/JP2000237929A/en
Publication of JP2000237929A publication Critical patent/JP2000237929A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Auxiliary Devices For Machine Tools (AREA)

Abstract

PROBLEM TO BE SOLVED: To dispense with the replacement of a filter. SOLUTION: A filter tank 5 partitioningly formed out of a cylindrical porous ceramic filter 2 on its inner and its outer tank, and a storage tank 10 of a filtered cutting fluid are provided. The storage tank 10 is connected with the inner tank of the filter tank 5 and a means of press-introducing a cutting fluid from a used cutting fluid tank only at the time of filtering is connected to the outer tank of the filter tank 5. A means of letting flow out an excess cutting fluid overflowed from the storage tank 10 to a filtered cutting fluid tank CCT only at the time of filtering is connected to the storage tank 10 and a means of feeding a compression air only at the time of back flow washing is connected to the storage tank 10. The cutting fluid stored in the storage tank 10 is press- introduced to the inner tank of the filter tank 5 and a means of discharging the cutting fluid to a used cutting fluid tank DCT only at the time of back flow washing is connected to the outer tank of the filter tank 5. Thereby, an eternal use of the filter 2 and a high precision filtration can be realized.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、旋盤、マシニング
センタ等の工作機械のクーラントタンクに装備される逆
流洗浄機能を具備した濾過装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtration device provided with a backwashing function for a coolant tank of a machine tool such as a lathe and a machining center.

【0002】[0002]

【従来の技術】従来、この種の工作機械において、工作
物の加工時に使用された切削液は、切り屑と共にチップ
コンベヤへ流し込まれ、該コンベヤで機外のクーラント
タンクに搬送される。クーラントタンク内では、仕切り
板によって汚濁槽、越流槽、清浄槽に区画され、上記の
様に、チップコンベヤから搬送された切り屑と切削液
は、先ず汚濁槽に流入し、ここで切削液中の切り屑は沈
殿し、上層の切削液はオーバーフローにより越流液槽に
流入することで分離される。越流槽内の切削液には、未
分離の切り屑が浮遊しており、この切削液を越流槽内に
設置した濾過装置で切り屑と分離し、濾過された切削液
は清浄槽に貯留され、切削液供給装置によって工作機械
の切削液として再使用される。濾過装置は、越流槽内に
横臥状に設置した金網状のドラムを回転させ、該ドラム
の外側から内側へ切削液が流入することで切り屑と分離
する様に構成され、又ドラム内部には、清浄槽の切削液
を噴出してドラムの外側に付着した切り屑を定期的に除
去する逆流洗浄機能を装備して、ドラムの目詰まりを防
止している。
2. Description of the Related Art Conventionally, in a machine tool of this type, a cutting fluid used for machining a workpiece is poured together with chips into a chip conveyor, and is conveyed to a coolant tank outside the machine by the conveyor. In the coolant tank, the partition plate separates the tank into a pollution tank, an overflow tank, and a cleaning tank. As described above, the chips and cutting fluid conveyed from the chip conveyor first flow into the pollution tank, where the cutting fluid The chips inside settle down, and the cutting fluid in the upper layer is separated by flowing into the overflow liquid tank by overflow. Uncut chips are floating in the cutting fluid in the overflow tank, and this cutting fluid is separated from the chips by the filtration device installed in the overflow tank, and the filtered cutting fluid is sent to the cleaning tank. It is stored and reused as cutting fluid for machine tools by a cutting fluid supply device. The filtration device is configured to rotate a wire mesh-shaped drum placed sideways in the overflow tank, and to separate cutting chips by flowing cutting fluid from the outside to the inside of the drum. Is equipped with a backwashing function that periodically removes chips attached to the outside of the drum by ejecting the cutting fluid from the cleaning tank to prevent clogging of the drum.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、クーラ
ントタンクは、できるだけコンパクトに設計されてお
り、逆流洗浄時には清浄槽内の切削液をドラムに大量に
吹き付ける必要があるため、工作機械への切削液の充分
な供給ができず、この場合、工作機械の運転を中止する
必要があり、作業効率を低減させていた。又、上記濾過
装置では、金網状のドラムを使用しているため、その目
が粗く、濾過が充分に出来ないことから、これに代えて
ぺーパーフィルタを装備した濾過装置を採用する工作機
械も見受けられる。この濾過装置は、越流槽からポンプ
で外部へ汲み上げた切削液をペーパーフィルタで濾過
し、濾過した切削液を清浄槽へ流出しており、このフィ
ルタが目詰まりした場合、フィルタを頻繁に交換せねば
ならず、その作業が甚だ面倒で手間を要し、又不用とな
ったフィルタは、産業廃棄物として処理せねばならない
ので、フィルタのランニングコストを高騰させる課題を
有していた。
However, the coolant tank is designed to be as compact as possible, and it is necessary to spray a large amount of cutting fluid in the cleaning tank onto the drum during backwashing. Sufficient supply was not possible, and in this case, the operation of the machine tool had to be stopped, which reduced the working efficiency. Further, in the above-mentioned filtering device, since a wire mesh-shaped drum is used, the mesh is coarse and filtration cannot be performed sufficiently. Therefore, a machine tool which employs a filtering device equipped with a paper filter instead of this is also available. Can be seen. This filtration device filters the cutting fluid pumped out of the overflow tank with a pump through a paper filter, and the filtered cutting fluid flows out to the cleaning tank.If this filter is clogged, the filter is replaced frequently. However, the operation is extremely troublesome and time-consuming, and the unnecessary filter has to be treated as industrial waste, so that there is a problem that the running cost of the filter rises.

【0004】[0004]

【課題を解決するための手段】本発明は、上記課題に鑑
み、筒状の多孔質セラミックフィルタで内外槽に区画形
成した濾過タンクと、濾過済み切削液の貯溜タンクとを
設け、該貯溜タンクと濾過タンクの内槽を連通し、使用
済み切削液槽からの切削液を濾過時にのみ圧入させる手
段を濾過タンクの外槽に接続すると共に、貯溜タンクか
ら越流する余剰切削液を濾過時にのみ濾過済み切削液槽
へ流出させる手段を貯溜タンクに接続し、圧縮空気を逆
流洗浄時にのみ供給する手段を貯溜タンクに接続して、
該貯溜タンクに貯溜した切削液を濾過タンクの内槽に圧
入する様に成すと共に、逆流洗浄時にのみ使用済み切削
液槽へ切削液を排出する手段を濾過タンクの外槽に接続
することにより、フィルタの恒久的使用と高精度の濾過
を可能とすると共に、クーラントタンクの外部で逆流洗
浄に必要な切削液を貯留して、工作機械の運転を中止せ
ずに逆流洗浄を可能とする様にして、上記課題を解決す
る。
SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a filtration tank partitioned into inner and outer tanks with a cylindrical porous ceramic filter, and a storage tank for a filtered cutting fluid. And a means for press-fitting the cutting fluid from the used cutting fluid tank only during filtration is connected to the outer tank of the filtration tank, and the excess cutting fluid flowing from the storage tank is filtered only during filtration. A means for flowing out to the filtered cutting fluid tank is connected to the storage tank, and a means for supplying compressed air only at the time of backwashing is connected to the storage tank,
By making the cutting fluid stored in the storage tank press-fit into the inner tank of the filtration tank, and connecting the means for discharging the cutting fluid to the used cutting fluid tank only at the time of backflow washing to the outer tank of the filtration tank, Permanent use of the filter and high-precision filtration are enabled, and the cutting fluid required for backwashing is stored outside the coolant tank, enabling backwashing without stopping machine tool operation. Thus, the above problem is solved.

【0005】[0005]

【発明の実施の形態】以下本発明の一実施例を図面に基
づいて説明する。1は工作機械のクーラントタンクCT
に装備された濾過装置の本体であり、該本体1は、円筒
状の多孔質セラミックフィルタ2で内外槽3、4に区画
形成した濾過タンク5と、連通口6を設けた筒状体7で
内外槽8、9に区画形成した濾過済み切削液Cの貯溜タ
ンク10とから成る。
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 is a machine tool coolant tank CT
The main body 1 is composed of a filtration tank 5 partitioned into inner and outer tanks 3 and 4 with a cylindrical porous ceramic filter 2 and a cylindrical body 7 provided with a communication port 6. And a storage tank 10 for the filtered cutting fluid C formed in the inner and outer tanks 8 and 9.

【0006】濾過タンク5及び貯溜タンク10は、同一容
積を有する円筒状のケーシング11の上下口の夫々に上蓋
12と下蓋13をリングパッキン14で以て気密状に接合して
いる。上蓋12は、内槽3、8と外槽2、9の夫々と外部
に連通する直角な流路15、16を設けている。流路15は、
上蓋12の底部の中心軸線上に設けた内槽連通口17と、上
蓋12の一側部に設けた配管接合口18とを連通して成り、
上蓋12の底部において、内槽連通口17の周囲には上記フ
ィルタ2の上端部を嵌合支持する環状の支持溝19を設
け、又上蓋12の上部の中心部位には流路15に連通した貫
通孔20を設けている。流路16は、上蓋12の底部におい
て、上記内槽接合口17に隣接配置した外槽連通口21と、
上蓋12の他側部(上記配管接合口18と左右対称部位)に
設けた別途配管接合口22とを連通して成り、上蓋12の上
部において、外槽連通口21との対称部位には、流路16に
連通した別途配管接合口23を設けている。
[0006] The filtration tank 5 and the storage tank 10 are respectively provided with upper and lower ports of a cylindrical casing 11 having the same volume.
The lower lid 13 and the lower lid 13 are joined in an airtight manner by a ring packing 14. The upper lid 12 is provided with right-angle channels 15 and 16 communicating with the inner tanks 3 and 8 and the outer tanks 2 and 9 respectively. The channel 15 is
An inner tank communication port 17 provided on the center axis of the bottom of the upper lid 12, and a pipe connection port 18 provided on one side of the upper lid 12 are communicated,
At the bottom of the upper lid 12, an annular support groove 19 for fitting and supporting the upper end of the filter 2 is provided around the inner tank communication port 17, and a central portion of the upper part of the upper lid 12 communicates with the flow path 15. A through hole 20 is provided. The flow path 16 has an outer tank communication port 21 disposed adjacent to the inner tank joint port 17 at the bottom of the upper lid 12,
A separate pipe connection port 22 provided on the other side of the top cover 12 (the above-described pipe connection port 18 and the left-right symmetric portion) is formed to communicate with each other. A separate pipe connection port 23 communicating with the flow path 16 is provided.

【0007】下蓋13には、その中心にねじ孔24を設ける
と共に、該ねじ孔24の上方には、上記フィルタ2又は筒
状体7を載置する円盤状の底板25を配置し、該底板25
は、下蓋13の内側周縁より上方突設した複数の脚部26で
支持されている。底板25の中心には、軸棒27を上方垂直
に立設し、該軸棒27は、その先端に設けた雄ねじ部28が
上蓋12の貫通孔20を貫通突出し、該上蓋12上で雄ねじ部
28をロックナット29により締結することで、上蓋12と下
蓋13間にケーシング11を、支持溝19と底板25間にフィル
タ2又は筒状体7の夫々を挟着一体化している。そし
て、濾過タンク5では、ケーシング11内をフィルタ2で
区画された内外槽3、4を流路15、16の夫々に連通して
いる。又、貯溜タンク10では、ケーシング11内を筒状体
7で区画された内外槽8、9を流路15、16の夫々に連通
すると共に、筒状体7の側壁下部に設けた連通口6によ
り、内外槽8、9を連通し、又下蓋13のねじ孔24に閉塞
キャップ30を気密状に螺着している。尚、上蓋12は、ロ
ックナット29との間に介在したリングパッキン31により
貫通孔20を気密閉塞し、又フィルタ2又は筒状体7の上
下端部と、支持溝19及び底板25との間をリングパッキン
32で以てシールしている。又、濾過タンク5において、
フィルタ2の上方部位に対応した軸棒27の上方部位に
は、フィルタ2の内径と最外径が略合致した樽形コイル
バネ33を外嵌固定し、濾過タンク5の組立時において、
底板25に立設したフィルタ2が、樽形コイルバネ33によ
って軸棒27の同心円上に配置される様に位置決めし、ケ
ーシング11への上蓋12の被冠に際し、支持溝19にフィル
タ2の上端部が容易に対応する様にしている。
The lower cover 13 is provided with a screw hole 24 at the center thereof, and a disk-shaped bottom plate 25 on which the filter 2 or the tubular body 7 is placed is disposed above the screw hole 24. Bottom plate 25
Are supported by a plurality of legs 26 projecting upward from the inner peripheral edge of the lower lid 13. At the center of the bottom plate 25, a shaft 27 is erected vertically upward, and the shaft 27 has a male threaded portion 28 provided at the tip thereof protrudes through the through hole 20 of the upper lid 12, and the male threaded portion is formed on the upper lid 12.
By fastening 28 with a lock nut 29, the casing 11 is sandwiched between the upper lid 12 and the lower lid 13, and the filter 2 or the tubular body 7 is sandwiched and integrated between the support groove 19 and the bottom plate 25. In the filtration tank 5, the inner and outer tanks 3 and 4, which are defined by the filter 2 in the casing 11, communicate with the flow paths 15 and 16. In the storage tank 10, the inner and outer tanks 8, 9 defined by the cylindrical body 7 in the casing 11 communicate with the flow paths 15, 16, respectively, and a communication port 6 provided in a lower part of the side wall of the cylindrical body 7. Accordingly, the inner and outer tanks 8 and 9 communicate with each other, and the closing cap 30 is screwed into the screw hole 24 of the lower lid 13 in an airtight manner. The upper lid 12 hermetically closes the through hole 20 by a ring packing 31 interposed between the lock nut 29 and the upper lid 12 between the upper and lower ends of the filter 2 or the cylindrical body 7 and the support groove 19 and the bottom plate 25. The ring packing
Sealed with 32. In the filtration tank 5,
A barrel-shaped coil spring 33 whose inner diameter and the outermost diameter of the filter 2 substantially match each other is externally fitted and fixed to the upper part of the shaft 27 corresponding to the upper part of the filter 2.
The filter 2 erected on the bottom plate 25 is positioned by the barrel-shaped coil spring 33 so as to be arranged on the concentric circle of the shaft 27, and when the upper lid 12 is covered with the casing 11, the upper end of the filter 2 is placed in the support groove 19. Is designed to easily respond.

【0008】濾過タンク5と貯溜タンク10は、夫々の流
路15の配管接合口18にニップル34を気密状に螺着し、各
タンク5、10の内槽3、8同志を配管接続している。
又、濾過タンク5の流路16の配管接合口22には、別途ニ
ップル35を介して濾過タンク5からの逆流を防止する逆
止弁36を接続している。逆止弁36は、一連の配管経路を
介してクーラント用のポンプ37の吐出側に配管接続して
いる。又、濾過タンク5において、流路16に連通した配
管接合口23には、圧力計38の計測部を気密状に螺着し
て、これを外槽4に接続し、外槽4の圧力を確認する様
に成している。ポンプ37の吸い込み側は、クーラントタ
ンクCTを仕切板で区画形成した使用済み切削液槽DC
T(以下、汚泥槽DCTと称する。)に配管接続してい
る。又、濾過タンク5の底部(下蓋)13に設けた外槽4
の排出口(ねじ孔)24を電磁弁、電動弁等のバルブ39を
介して汚泥槽DCTに配管接続している。
The filtration tank 5 and the storage tank 10 are screwed airtightly with nipples 34 at the pipe joints 18 of the respective flow paths 15, and the inner tanks 3, 8 of the tanks 5, 10 are connected by piping. I have.
In addition, a check valve 36 for preventing backflow from the filtration tank 5 is connected to the piping connection port 22 of the flow path 16 of the filtration tank 5 via a separate nipple 35. The check valve 36 is connected to the discharge side of a coolant pump 37 via a series of piping paths. In the filtration tank 5, a measuring part of a pressure gauge 38 is screwed in a gas-tight manner to a pipe joint 23 communicating with the flow path 16 and connected to the outer tank 4. It is made to confirm. The suction side of the pump 37 is a used cutting fluid tank DC in which a coolant tank CT is defined by a partition plate.
T (hereinafter referred to as sludge tank DCT). An outer tank 4 provided at the bottom (lower lid) 13 of the filtration tank 5
(Screw hole) 24 is connected to the sludge tank DCT via a valve 39 such as an electromagnetic valve or an electric valve.

【0009】又、貯溜タンク10の流路16の配管接合口22
には、別途ニップル35aを介して電磁弁、電動弁等の別
途バルブ40を接続し、該バルブ40は、一連の配管経路を
介してクーラントタンクCTを仕切板で区画形成した濾
過済み切削液槽CCT(以下、清浄槽CCTと称す
る。)に配管接続している。又、貯溜タンク10におい
て、流路16に連通した配管接合口23には、電磁弁、電動
弁等の別途バルブ41を接続し、該バルブ41は一連の配管
経路を介してエアーコンプレッサー等の圧縮空気供給源
APに配管接続している。ここで、圧縮空気供給源AP
に接続したバルブ41は、貯溜タンク10からの逆流を防止
する逆止弁と成しても良い。尚、本実施例において、濾
過タンク5と貯溜タンク10は、同一容積のものを示した
が、濾過タンク5より貯溜タンク10を容積大と成しても
良い。
Further, the pipe joint 22 of the flow path 16 of the storage tank 10
, A separate valve 40 such as an electromagnetic valve or an electric valve is connected via a separate nipple 35a, and the valve 40 is a filtered cutting fluid tank formed by partitioning a coolant tank CT with a partition plate through a series of piping paths. A pipe is connected to a CCT (hereinafter, referred to as a cleaning tank CCT). In the storage tank 10, a separate valve 41 such as an electromagnetic valve or an electric valve is connected to the pipe joint 23 communicating with the flow path 16, and the valve 41 is compressed by an air compressor or the like via a series of pipe paths. The pipe is connected to the air supply source AP. Here, the compressed air supply source AP
May be configured as a check valve for preventing backflow from the storage tank 10. In the present embodiment, the filtration tank 5 and the storage tank 10 have the same volume, but the storage tank 10 may have a larger volume than the filtration tank 5.

【0010】次に、他の実施例を図5〜7に基づき説明
する。この濾過装置は、本体1を変形したものであり、
上記と同一又は相当部分には同じ符号を付し、説明は省
略する。この本体1は、略円筒状の密閉タンク42内を上
層と下層に区画形成して、上層を濾過済み切削液Cの貯
溜タンク10と成し、下層内をフィルタ2で内外槽3、4
に区画形成して濾過タンク5と成し、該濾過タンク5の
内槽3を貯溜タンク10に連通している。密閉タンク42の
上口外周縁にはフランジ43を突設し、該フランジ43に円
板状の密閉蓋44を載置し、これをフランジ43にボルト締
めしており、密閉蓋44において、フランジ43との接合部
位に刻設した円形溝にOリング45を配して、密閉タンク
42の上口を気密閉塞している。
Next, another embodiment will be described with reference to FIGS. This filtration device is a modification of the main body 1,
The same or corresponding parts as those described above are denoted by the same reference numerals, and description thereof will be omitted. The main body 1 is formed by partitioning a substantially cylindrical closed tank 42 into an upper layer and a lower layer, forming an upper layer as a storage tank 10 for the filtered cutting fluid C, and using a filter 2 in the lower layer to form inner and outer tanks 3, 4.
The filtration tank 5 is formed into a compartment, and the inner tank 3 of the filtration tank 5 communicates with the storage tank 10. A flange 43 is protruded from the outer peripheral edge of the upper opening of the closed tank 42, and a disk-shaped sealing lid 44 is placed on the flange 43, and this is bolted to the flange 43. O-ring 45 is arranged in the circular groove engraved at the joint part with
The upper mouth of 42 is airtightly closed.

【0011】又、密閉タンク42において、フランジ43下
部の上部側壁には、左右対称部位に配管接合口22、23を
突設し、該配管接合口22、23にバルブ40、41の夫々を接
続し、一方のバルブ40を清浄槽CCTに配管接続し、他
方のバルブ41を圧縮空気供給源APに配管接続してい
る。尚、バルブ41は、上記と同様な逆止弁と成しても良
い。又、密閉タンク42内において、上記配管接合口22、
23の下方には、有底筒状の容器46を配置して成り、該容
器46は、その上方開口部の外周縁に鍔部47を突設し、該
鍔部47を密閉タンク42の内壁に設けた環状の凸部48上に
係合載置し、密閉タンク42内を貯溜タンク10と濾過タン
ク5に気密状に区画している。又、鍔部47において、凸
部48との接合部位に刻設した円形溝にOリング49を配
し、鍔部47を凸部48にボルトで固定している。尚、貯溜
タンク10の容積は、濾過タンク5の容積より同一又はそ
れ以上と成している。又、50は密閉タンク42の下方側部
に設けたタンク自立用の三脚であり、51は密閉蓋44上に
設けた把手、52は容器46の鍔部47上に設けた把手であ
る。
In the closed tank 42, pipe joints 22 and 23 project from the upper side wall under the flange 43 at symmetrical portions, and valves 40 and 41 are connected to the joints 22 and 23, respectively. Then, one valve 40 is connected to the cleaning tank CCT by a pipe, and the other valve 41 is connected to the compressed air supply source AP by a pipe. Note that the valve 41 may be a check valve similar to the above. Further, in the closed tank 42, the pipe connection port 22,
Below the bottom 23, a bottomed cylindrical container 46 is arranged, and the container 46 has a flange 47 projecting from an outer peripheral edge of an upper opening thereof, and the flange 47 is attached to the inner wall of the closed tank 42. The sealing tank 42 is airtightly partitioned into the storage tank 10 and the filtration tank 5 by being engaged and mounted on an annular projection 48 provided on the storage tank 10. In the flange 47, an O-ring 49 is arranged in a circular groove formed in a joint portion with the projection 48, and the flange 47 is fixed to the projection 48 with bolts. The capacity of the storage tank 10 is equal to or larger than the capacity of the filtration tank 5. Reference numeral 50 denotes a tripod provided on the lower side of the closed tank 42 for standing on the tank, reference numeral 51 denotes a handle provided on the closed lid 44, and reference numeral 52 denotes a handle provided on the flange 47 of the container 46.

【0012】容器46の底部には、複数(図示例では6
個)の内槽連通口17を貫設し、その周囲に設けた支持溝
19にフィルタ2の上端部を嵌合支持している。又、容器
46の底部中心には軸棒27を垂下形成し、該軸棒27の下端
に設けた雄ねじ部28で底板25の中心を貫通して、ロック
ナット29にて雄ねじ部28を締結することにより、容器46
と底板25間にフィルタ2を挟着している。
At the bottom of the container 46, a plurality (6 in the illustrated example)
Of the inner tank communication hole 17
The upper end of the filter 2 is fitted and supported by 19. Also, container
At the bottom center of 46, a shaft 27 is hung down, and the center of the bottom plate 25 is penetrated by a male screw 28 provided at the lower end of the shaft 27, and the male screw 28 is fastened by a lock nut 29, Container 46
And the bottom plate 25 sandwiches the filter 2.

【0013】底板25は、その上面に各フィルタ2を位置
決め載置する円形凹部53を設け、該円形凹部53上には、
円形パッキン54、金属製の円形プレート55を上から順に
積層している。そして、円形凹部53の中心に底板25下面
より貫通螺入したアジャストボルト56により、これの上
端に当接する円形プレート55を上下位置調節し、各フィ
ルタ2の微妙に異なる長さに応じ、フィルタ2の夫々が
底板25と容器46底面間に確実に挟着される様に成してい
る。尚、底板25には複数の流通口57を貫設し、底板25側
からの切削液Cの流動性をも図っている。
The bottom plate 25 is provided on its upper surface with a circular recess 53 for positioning and mounting each filter 2.
A circular packing 54 and a circular plate 55 made of metal are laminated in order from the top. The circular plate 55, which is in contact with the upper end of the circular plate 53, is vertically adjusted by an adjusting bolt 56 screwed into the center of the circular concave portion 53 from the lower surface of the bottom plate 25. Are securely sandwiched between the bottom plate 25 and the bottom surface of the container 46. The bottom plate 25 is provided with a plurality of circulation ports 57 so as to ensure the fluidity of the cutting liquid C from the bottom plate 25 side.

【0014】又、濾過タンク5に対応した密閉タンク42
の下方側壁には、配管接合口22を突設し、該配管接合口
22に逆止弁36を接続し、該逆止弁36をポンプ37を介して
汚泥槽DCTに配管接続している。又、濾過タンク5
(密閉タンク42)の底部13中央には、外槽4の排出口24
を下方垂直に突設し、該排出口24にバルブ39を接続し、
該バルブ39を汚泥槽DCTに配管接続している。又、圧
力計38は、その計測部が濾過タンク5の外槽4に配する
様に、密閉タンク42の下方側壁の外方に取付けられてい
る。尚、本実施例においては、複数個(図示例では6
個)のフィルタ2を使用したものを示したが、このフィ
ルタ2と同等の濾過性能を有するものであれば、大型の
1つのフィルタ2を使用しても良い。
A closed tank 42 corresponding to the filtration tank 5
A pipe connection port 22 is provided on the lower side wall of the
A check valve 36 is connected to 22 and the check valve 36 is connected to a sludge tank DCT via a pump 37. In addition, filtration tank 5
In the center of the bottom 13 of the (sealed tank 42), the outlet 24 of the outer tank 4
Project vertically downward, connect a valve 39 to the outlet 24,
The valve 39 is connected to the sludge tank DCT by piping. The pressure gauge 38 is attached to the outside of the lower side wall of the closed tank 42 so that the measurement part is disposed in the outer tank 4 of the filtration tank 5. In this embodiment, a plurality (6 in the illustrated example) is used.
In this case, a large filter 2 may be used as long as the filter 2 has the same filtering performance as the filter 2.

【0015】次に本発明に係る逆流洗浄機能を具備した
濾過装置の作用について図4及び図6に基づき説明す
る。図において、濾過時の流体の流れを実線の矢印で示
し、逆流洗浄時の流体の流れを破線の矢印で示す。先
ず、濾過する場合について説明する。かかる状態では、
バルブ39、41を閉弁、バルブ40を開弁している。そし
て、ポンプ37を運転することにより、汚泥槽DCT内の
使用済み切削液Cが逆止弁36を経て濾過タンク5の外槽
4に圧入される。ポンプ37の圧力により、外槽4の切削
液Cは、フィルタ2内に圧入し、濾過される。この時、
フィルタ2の外槽4側の表面には、切削液C中の切り屑
が付着し、清浄な切削液Cが内槽3に流入する。そし
て、図4に示す装置では、内槽3の清浄な切削液Cは、
ニップル34を経て貯溜タンク10の内槽8へ流入すると共
に、連通口6を通じて外槽9へも流入する。又、図6に
示す装置では、内槽3の清浄な切削液Cは、内槽連通口
17を通して貯溜タンク10内に流入する。そして、貯溜タ
ンク10が切削液Cで満たされると、貯溜タンク10から越
流(オーバーフロー)する余剰切削液Cがバルブ40を経
て清浄槽CCTへ流出する。尚、バルブ41が逆止弁の場
合、切削液Cは圧縮供給源AP側へ逆流しない。
Next, the operation of the filtration device having a backwash function according to the present invention will be described with reference to FIGS. In the drawing, the flow of the fluid at the time of filtration is indicated by a solid arrow, and the flow of the fluid at the time of backwashing is indicated by a broken arrow. First, the case of filtering will be described. In such a state,
The valves 39 and 41 are closed, and the valve 40 is opened. Then, by operating the pump 37, the used cutting fluid C in the sludge tank DCT is injected into the outer tank 4 of the filtration tank 5 via the check valve 36. Due to the pressure of the pump 37, the cutting fluid C in the outer tub 4 is pressed into the filter 2 and filtered. At this time,
Chips in the cutting fluid C adhere to the surface of the filter 2 on the outer tub 4 side, and clean cutting fluid C flows into the inner tub 3. And in the apparatus shown in FIG. 4, the clean cutting fluid C of the inner tank 3 is
It flows into the inner tank 8 of the storage tank 10 through the nipple 34 and also flows into the outer tank 9 through the communication port 6. In the apparatus shown in FIG. 6, the clean cutting fluid C in the inner tank 3 is supplied to the inner tank communication port.
It flows into the storage tank 10 through 17. When the storage tank 10 is filled with the cutting liquid C, the excess cutting liquid C that overflows from the storage tank 10 flows out to the cleaning tank CCT via the valve 40. When the valve 41 is a check valve, the cutting fluid C does not flow backward to the compression supply source AP.

【0016】上記濾過中において、フィルタ2の外槽4
側の表面に切り屑が大量に付着し、フィルタ2の濾過機
能が低下すると、切削液Cのフィルタ2への浸透量が減
少し、外槽4内の圧力が正常値より上昇する。かかる状
態を圧力計38で確認し、この時点でフィルタ2を清浄な
切削液Cで逆流洗浄する。この洗浄に際しては、先ずポ
ンプ37を停止する。次いで、バルブ39、41を開弁、バル
ブ40を閉弁すると共に、圧縮空気供給源APを運転する
ことにより、圧縮空気がバルブ41を経て、図4に示す装
置では、貯溜タンク10内の外槽9へ流入し、又図6に示
す装置では、貯溜タンク10内に流入する。尚、バルブ41
が逆止弁の場合は、自動的に圧縮空気が貯溜タンク10内
に流入する。そして、圧縮空気の流入により貯溜タンク
10内の圧力が増大し、貯溜タンク10に貯溜した清浄な切
削液Cが、図4に示す装置では、外槽9、連通口6、及
び内槽8を経て、又図6に示す装置では、貯溜タンク10
及び内槽連通口17を経て、濾過タンク5の内槽3に圧入
される。これにより、この圧力流体(切削液)Cがフィ
ルタ2の内槽3側から外槽4側へ圧入され、フィルタ2
の外槽4側の表面に付着した切り屑を噴き出し、フィル
タ2を洗浄する。濾過タンク5の外槽4内に噴き出され
た切り屑は切削液Cと共に、排出口24からバルブ39を経
て汚泥槽DCTへ排出される。尚、この時、切り屑を含
む切削液Cは、逆止弁36によってポンプ37側へ逆流しな
い。
During the filtration, the outer tank 4 of the filter 2
When a large amount of chips are attached to the surface on the side and the filtering function of the filter 2 is reduced, the amount of the cutting fluid C that permeates the filter 2 is reduced, and the pressure in the outer tub 4 rises above a normal value. Such a state is confirmed by the pressure gauge 38, and at this time, the filter 2 is backwashed with the clean cutting fluid C. In this cleaning, first, the pump 37 is stopped. Next, by opening the valves 39 and 41 and closing the valve 40 and operating the compressed air supply source AP, the compressed air passes through the valve 41, and in the apparatus shown in FIG. It flows into the tank 9 and, in the device shown in FIG. In addition, valve 41
Is a check valve, the compressed air automatically flows into the storage tank 10. And the storage tank
The pressure in the tank 10 increases, and the clean cutting fluid C stored in the storage tank 10 passes through the outer tank 9, the communication port 6, and the inner tank 8 in the apparatus shown in FIG. 4, and in the apparatus shown in FIG. , Storage tank 10
And through the inner tank communication port 17 into the inner tank 3 of the filtration tank 5. As a result, the pressurized fluid (cutting fluid) C is press-fitted from the inner tank 3 side of the filter 2 to the outer tank 4 side, and the filter 2
The chips attached to the outer tank 4 side are blown out to wash the filter 2. The chips spouted into the outer tank 4 of the filtration tank 5 are discharged together with the cutting fluid C from the outlet 24 through the valve 39 to the sludge tank DCT. At this time, the cutting fluid C containing chips does not flow backward to the pump 37 by the check valve 36.

【0017】[0017]

【発明の効果】要するに本発明は、濾過タンク5を内外
槽3、4に区画形成した筒状のフィルタ2が多孔質セラ
ミックから成るので、従来の金網状のドラムに比し濾過
精度を飛躍的に向上させることが出来、又濾過により表
面に付着した切り屑でフィルタ2が目詰まりしても、従
来のペーパーフィルタに比し逆流洗浄が可能な強度を有
するため、フィルタ2の交換が不要で、恒久的な使用が
可能と成り、従来の様な産業廃棄物の処理問題を解消
し、フィルタ2のランニングコストを大幅に低減でき
る。又、濾過タンク5の内槽3と濾過済み切削液Cの貯
溜タンク10とを連通したので、逆流洗浄で要する切削液
Cを清浄槽CCT外部に貯溜でき、例え清浄槽CCTが
工作機械でのみ使用される分量しか貯溜できなくとも、
逆流洗浄時に工作機械の運転を中止する必要がなく、そ
の運転中にフィルタ2の濾過機能を再生するに充分な量
の切削液Cで以てフィルタ2を逆流洗浄でき、よって工
作機械による効率的な加工作業が可能と成る。又、汚泥
槽DCTからの切削液Cを濾過時にのみ圧入させる手段
(逆止弁36及びポンプ37)を濾過タンク5の外槽4に接
続することにより、切り屑を含んだ切削液Cを外槽4か
らフィルタ2へ圧入して濾過でき、切り屑とこれを含ま
ない清浄な切削液Cとを分離できると共に、この切削液
Cを貯溜タンク10へ流入できる。又、貯溜タンク10から
越流する余剰切削液Cを濾過時にのみ清浄槽CCTへ流
出させる手段(バルブ40)を貯溜タンク10に接続したの
で、貯溜タンク10内に逆流洗浄に必要量の切削液Cを貯
溜できると共に、余剰切削液Cを清浄槽CCTへ供給し
てこの切削液Cを工作機械で再利用できる。又、圧縮空
気を逆流洗浄時にのみ供給する手段(圧縮空気供給源A
P)を貯溜タンク10に接続したので、過剰な切削液Cを
利用することなく、貯溜タンク10に貯溜された逆流洗浄
に必要な分量の切削液Cのみで以てフィルタ2を逆流洗
浄できると共に、その切削液Cを濾過タンク5の内槽3
に圧入する様に成すことにより、切削液Cの圧力でフィ
ルタ2の外槽4側の表面に付着した切り屑を残らず払拭
でき、フィルタ2の濾過機能を再生できる。又、逆流洗
浄時にのみ汚泥槽DCTへ切削液Cを排出する手段(バ
ルブ39)を濾過タンク5の外槽4に接続したので、洗い
流された切り屑を切削液Cと共に外槽4の汚泥槽DCT
へ排出することにより、その切削液Cが外槽4内に滞留
し、切り屑がフィルタ2に再付着して濾過機能を低下さ
せる様な不具合を防止でき、しかもフィルタ2を洗浄し
た切削液Cは廃棄しないため、再度濾過され工作機械で
使用される切削液Cとして役立てられ、無駄なく切削液
Cを循環できる。
In short, according to the present invention, since the cylindrical filter 2 in which the filtration tank 5 is divided into the inner and outer tanks 3 and 4 is made of porous ceramic, the filtration accuracy is remarkably improved as compared with the conventional wire mesh drum. Even if the filter 2 is clogged with chips attached to the surface due to filtration, the filter 2 has a strength capable of backwashing as compared with a conventional paper filter, so that the filter 2 does not need to be replaced. Thus, permanent use becomes possible, and the conventional problem of treating industrial waste can be solved, and the running cost of the filter 2 can be greatly reduced. Further, since the inner tank 3 of the filtration tank 5 and the storage tank 10 for the filtered cutting fluid C are communicated with each other, the cutting fluid C required for backwashing can be stored outside the cleaning tank CCT. Even if only the used amount can be stored,
It is not necessary to stop the operation of the machine tool at the time of backwashing, and the filter 2 can be backwashed with a sufficient amount of the cutting fluid C to regenerate the filtering function of the filter 2 during the operation, thereby efficiently using the machine tool. Processing work becomes possible. Further, by connecting a means (a check valve 36 and a pump 37) for injecting the cutting liquid C from the sludge tank DCT only at the time of filtration to the outer tank 4 of the filtration tank 5, the cutting liquid C containing chips can be removed. The cutting fluid C can be filtered by being pressed into the filter 2 from the tank 4 to separate the chips and the clean cutting fluid C containing no chips, and the cutting fluid C can flow into the storage tank 10. In addition, since the means (valve 40) for allowing the excess cutting fluid C flowing from the storage tank 10 to flow out to the cleaning tank CCT only at the time of filtration is connected to the storage tank 10, the amount of the cutting fluid necessary for backwashing is stored in the storage tank 10. C can be stored, and excess cutting fluid C can be supplied to the cleaning tank CCT to reuse this cutting fluid C in the machine tool. Means for supplying compressed air only during backwashing (compressed air supply source A
Since P) is connected to the storage tank 10, the filter 2 can be backwashed with only the amount of cutting fluid C necessary for backflow washing stored in the storage tank 10 without using excessive cutting fluid C. , The cutting fluid C into the inner tank 3 of the filtration tank 5.
By pressurizing the filter 2, the chips attached to the surface of the filter 2 on the outer tank 4 side can be wiped away by the pressure of the cutting fluid C, and the filtering function of the filter 2 can be regenerated. Also, since the means (valve 39) for discharging the cutting fluid C to the sludge tank DCT only at the time of backwashing is connected to the outer tank 4 of the filtration tank 5, the washed chips together with the cutting fluid C are transferred to the sludge tank of the outer tank 4. DCT
By discharging the cutting fluid C into the outer tub 4, it is possible to prevent such a problem that the cutting fluid C stays in the outer tub 4, and chips are re-adhered to the filter 2 to deteriorate the filtering function. Since is not discarded, it is filtered again and used as cutting fluid C used in the machine tool, and the cutting fluid C can be circulated without waste.

【0018】又、濾過タンク5の外槽4内を圧力計測す
る圧力計38を濾過タンク5に設けたので、濾過中におい
て、外槽4内の圧力が正常値より上昇したことを確認す
ることにより、フィルタ2の濾過機能が低下し、逆流洗
浄が必要な時期であること容易に把握できる等その実用
的効果甚だ大である。
Since a pressure gauge 38 for measuring the pressure in the outer tank 4 of the filtration tank 5 is provided in the filtration tank 5, it is necessary to confirm that the pressure in the outer tank 4 has risen above a normal value during filtration. As a result, the filtering function of the filter 2 is reduced, and it is possible to easily understand that it is time to perform backwashing, and the practical effect is extremely large.

【図面の簡単な説明】[Brief description of the drawings]

【図1】濾過装置の使用状態を示す図である。FIG. 1 is a diagram showing a use state of a filtration device.

【図2】濾過装置の要部断面図である。FIG. 2 is a sectional view of a main part of the filtration device.

【図3】分解斜視図である。FIG. 3 is an exploded perspective view.

【図4】濾過時と逆流洗浄時の流体の流れを示す図であ
る。
FIG. 4 is a diagram showing the flow of fluid during filtration and backwashing.

【図5】他の実施例を示す要部断面図である。FIG. 5 is a cross-sectional view of a main part showing another embodiment.

【図6】濾過時と逆流洗浄時の流体の流れを示す図であ
る。
FIG. 6 is a diagram showing the flow of fluid during filtration and backwashing.

【図7】分解斜視図である。FIG. 7 is an exploded perspective view.

【符号の説明】[Explanation of symbols]

2 フィルタ 3 内槽 4 外槽 5 濾過タンク 10 貯溜タンク 36 逆止弁 37 ポンプ 38 圧力計 39 バルブ 40 バルブ 41 バルブ AP 圧縮空気供給源 C 切削液 CCT 濾過済み切削液槽 DCT 使用済み切削液槽 2 Filter 3 Inner tank 4 Outer tank 5 Filtration tank 10 Storage tank 36 Check valve 37 Pump 38 Pressure gauge 39 Valve 40 Valve 41 Valve AP Compressed air supply source C Cutting fluid CCT Filtered cutting fluid tank DCT Used cutting fluid tank

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 筒状の多孔質セラミックフィルタで内外
槽に区画形成した濾過タンクと、濾過済み切削液の貯溜
タンクとを設け、該貯溜タンクと濾過タンクの内槽を連
通し、使用済み切削液槽からの切削液を濾過時にのみ圧
入させる手段を濾過タンクの外槽に接続すると共に、貯
溜タンクから越流する余剰切削液を濾過時にのみ濾過済
み切削液槽へ流出させる手段を貯溜タンクに接続し、圧
縮空気を逆流洗浄時にのみ供給する手段を貯溜タンクに
接続して、該貯溜タンクに貯溜した切削液を濾過タンク
の内槽に圧入する様に成すと共に、逆流洗浄時にのみ使
用済み切削液槽へ切削液を排出する手段を濾過タンクの
外槽に接続したことを特徴とする逆流洗浄機能を具備し
た濾過装置。
1. A filter tank having a cylindrical porous ceramic filter formed in an inner and an outer tank, and a storage tank for a filtered cutting fluid are provided. A means for press-fitting the cutting fluid from the liquid tank only at the time of filtration is connected to the outer tank of the filtration tank, and a means for discharging excess cutting fluid flowing from the storage tank to the filtered cutting fluid tank only at the time of filtration is provided to the storage tank. A means for supplying compressed air only during backwashing is connected to the storage tank so that the cutting fluid stored in the storage tank is press-fitted into the inner tank of the filtration tank. A filtering device having a backwashing function, wherein a means for discharging a cutting fluid to a liquid tank is connected to an outer tank of the filtration tank.
【請求項2】 濾過タンクの外槽内を圧力計測する圧力
計を濾過タンクに設けたことを特徴とする請求項1記載
の逆流洗浄機能を具備した濾過装置。
2. The filtering device according to claim 1, wherein a pressure gauge for measuring the pressure inside the outer tank of the filtration tank is provided in the filtration tank.
JP11042513A 1999-02-22 1999-02-22 Filter device provided with back flow washing function Pending JP2000237929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11042513A JP2000237929A (en) 1999-02-22 1999-02-22 Filter device provided with back flow washing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11042513A JP2000237929A (en) 1999-02-22 1999-02-22 Filter device provided with back flow washing function

Publications (1)

Publication Number Publication Date
JP2000237929A true JP2000237929A (en) 2000-09-05

Family

ID=12638163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11042513A Pending JP2000237929A (en) 1999-02-22 1999-02-22 Filter device provided with back flow washing function

Country Status (1)

Country Link
JP (1) JP2000237929A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006255833A (en) * 2005-03-17 2006-09-28 Brother Ind Ltd Coolant filtering device
CN107102123A (en) * 2017-04-24 2017-08-29 中船动力有限公司 Piping throws oil flushing verifying attachment and method
JP2018176308A (en) * 2017-04-05 2018-11-15 ブラザー工業株式会社 Cleaning device and cleaning method
JP2019042719A (en) * 2017-09-07 2019-03-22 コイケエンジニアリングアンドサービス株式会社 Filter device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006255833A (en) * 2005-03-17 2006-09-28 Brother Ind Ltd Coolant filtering device
JP2018176308A (en) * 2017-04-05 2018-11-15 ブラザー工業株式会社 Cleaning device and cleaning method
JP6996105B2 (en) 2017-04-05 2022-01-17 ブラザー工業株式会社 Cleaning equipment and cleaning method
CN107102123A (en) * 2017-04-24 2017-08-29 中船动力有限公司 Piping throws oil flushing verifying attachment and method
JP2019042719A (en) * 2017-09-07 2019-03-22 コイケエンジニアリングアンドサービス株式会社 Filter device

Similar Documents

Publication Publication Date Title
US5972210A (en) Bypass-mounted filter assembly
JP6557305B2 (en) Filtration device
JPH05261211A (en) Fuel filter assembly
JP2001353640A (en) Filtering device having back washing function
US4430220A (en) Apparatus for controlling fluid medium flow
US20080087333A1 (en) Mobile fluid feeding apparatus for a power tool
JP2000237929A (en) Filter device provided with back flow washing function
JPH02187106A (en) Back-washing type filter
JP5266006B2 (en) Filter unit for processing waste liquid treatment equipment
KR100507482B1 (en) A bag filter device for filtering of cutting oil
JP3747100B2 (en) Fluid purification device
JP2000279851A (en) Centrifugal separation type composite filter
KR100503029B1 (en) A filtering apparatus for liquid
JPS6034398Y2 (en) Oil removal device
CN218392516U (en) Filter device of paint sand mill
CN212102262U (en) Filter assembly and water purification device
CN221287054U (en) Integrated filter and particulate matter-containing wastewater filtering system
KR102627451B1 (en) Filtering apparatus for polishing slurry liquid
CN217773465U (en) Filter for high-viscosity liquid
CN210674422U (en) Cleaning device for reciprocating compressor
CN217746131U (en) Working cylinder bottom filtering device and isostatic pressing machine with same
KR0114745Y1 (en) Apparatus of filtering for liquid
CN109078377A (en) Automatic cleaning strainer
CN218709659U (en) Water purifier waste water recycle accessory
JP6061719B2 (en) Coolant system

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20010911