EP0189171A2 - Dispositif de séparation des copeaux et des poussières de découpage - Google Patents

Dispositif de séparation des copeaux et des poussières de découpage Download PDF

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Publication number
EP0189171A2
EP0189171A2 EP86100754A EP86100754A EP0189171A2 EP 0189171 A2 EP0189171 A2 EP 0189171A2 EP 86100754 A EP86100754 A EP 86100754A EP 86100754 A EP86100754 A EP 86100754A EP 0189171 A2 EP0189171 A2 EP 0189171A2
Authority
EP
European Patent Office
Prior art keywords
scrapers
portions
collecting plate
chains
solid particles
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.)
Withdrawn
Application number
EP86100754A
Other languages
German (de)
English (en)
Other versions
EP0189171A3 (fr
Inventor
Minoru Tashiro
Makoto Tashiro
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.)
Bunri Industry Co Ltd
Original Assignee
Bunri Industry Co Ltd
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 Bunri Industry Co Ltd filed Critical Bunri Industry Co Ltd
Publication of EP0189171A2 publication Critical patent/EP0189171A2/fr
Publication of EP0189171A3 publication Critical patent/EP0189171A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks

Definitions

  • This invention relates to a device for separating cutting chips and dust from cutting oil used in cutting machines or like machine tools for re-using the oil.
  • the used cutting oil contains cutting chips and dust. These chips and dust should be separated for re-using the oil.
  • Japanese Utility Model Disclosure 169981/1979 discloses a device for separating cutting chips and dust from cutting oil.
  • used cutting oil containing chips and dust is charged into a storage tank.
  • the cutting chips and dust contained in the charged cutting oil sink and are accumulated on the bottom of the tank.
  • the accumulated foreign particles are scraped by a plurality of scrapers sliding on the bottom of the storage tank to be discharged the outside thereof.
  • the bottom of the tank is provided with a magnet plate.
  • the device has a pair of endless chains, which extend partly inside the tank and partly outside the tank.
  • Each chain has a forward run extending adjacent to and facing the tank bottom and a reverse run extending above and substantially parallel to the forward run.
  • Each scraper is stretched between the chains and is driven with the chains. As the scrapers proceed along the forward run of the chains, they slide on the tank bottom to scrape the accumulated foreign particles.
  • the present invention is contrived in consideration of the above circumstances, and is intended to provide a separating device which can prevent cutting chips and cutting dust from getting caught by scrapers, and can thus maintain the high ability of the scrapers for long time.
  • a device for separating solid particles from a liquid containing the solid particles which comprises a storage tank having a top provided with a liquid inlet, for storing the liquid charged through the liquid inlet, a collecting plate having a first portion which faces the liquid inlet and on which solid particles contained in liquid charged through the liquid inlet are accumulated, and a second portion extending from the first portion to the outside of the liquid tank, scraping means slidable on the first and second portions, for scraping solid particles accumulated on the first portion, and driving means for driving the scraping means to slide on the first and second portions to the extended end of the second portion and further driving the scarping means along a path below the collecting plate.
  • Figs. 1 and 2 show a device for separating cutting chips and dust from cutting oil.
  • the device includes storage tank 1.
  • Tank 1 has bottom wall 2, which has first portion 2a extending horizontally and second portion 2b extending obliquely upwards from one end of first portion 2a.
  • Tank 1 has discharge port 3 formed in the extended end of second portion 2b of the bottom wall.
  • Opposite side walls lb of tank 1 extend along first and second portions 2a and 2b of the bottom wall.
  • Receiving box 4 is disposed below discharge port 3 to receive cutting chips and dust separated from cutting oil.
  • Storage tank 1 has inlet 5 provided at its top. Dirty liquid, i.e., used cutting oil, is supplied to tank 1 through inlet 5.
  • Inlet 5 faces first portion 2a of the bottom wall. Used cutting oil is led out from a cutting machine (not shown) through duct pipe 6 and supplied to tank 1 from supply pipe 6 through inlet 5.
  • plate 7 In storage tank 1, collecting plate 7 is disposed above bottom wall 2 apart therefrom. Plate 7 has first portion 7a extending parallel to first portion 2a of bottom wall 2 and facing inlet 5 and second portion 7b extending parallel to second portion 2b of bottom wall 2 from one end of first portion 7a up to a position right above discharge port 3. As shown in Figs. 3 and 4, plate 7 includes magnet plate 8 consisting of a platelike permanent magnet, non-magnetic plate 9 of stainless steel or the like covering the top of magnet plate 8 and magnetic plate 10 made from a steel plate covering the remaining surfaces of magnet plate 8. Opposite ends of non-magnetic plate 9 are secured to side walls lb of tank 1.
  • the device further comprises a plurality of scrapers 13 and drive mechanism 11 for driving these scrapers.
  • Drive mechanism 11 has a pair of parallel endless chains 12.
  • Each of chains has forward run 12a running over and along collecting plate 7 and reverse run 12b running along the bottom of tank 1.
  • Each chain 12 is guided by chain guides 26 provided on bottom wall 2 and side walls lb of tank 1.
  • Chains 12 are stretched between drive sprockets 14, which are rotatably supported by side walls lb of tank 1 at a position in the neighborhood of the end of plate 7 adjacent to discharge port 3, and driven sprockets 15, which are rotatably mounted on the side walls at a position in the neighborhood of the end of plate 7 on the side of inlet 5.
  • Drive sprockets 14 are coupled together by coupling rod 14a.
  • Transmission sprocket 16 is coupled to one of drive sprockets 14.
  • Transmission sprocket 16 is coupled by drive chain 17 to sprocket 18 mounted on the rotating shaft of motor 19 as a drive source.
  • motor 19 When motor 19 is rotated, forward run 12a of each chain 12 proceeds in the direction of arrow A, while reverse run 12b proceeds in the direction of arrow B.
  • Each scraper 13 is stretched between chains 12 and extends perpendicular to the traveling direction of the chains.
  • Scrapers 13 are provided at regular intervals in the traveling direction chains 12.
  • chains 12 are driven, scrapers 13 slide on plate 7 in the direction of arrow A in forward run 12a and proceed along the bottom of tank 1 in the direction of arrow B in return run 12b.
  • a pair of direction change sprockets 20 and 21 are mounted on side walls lb of tank 1. After chains 12 have passed through drive sprockets 14, they proceed obliquely upwards toward the left in F ig. 2 between direction change sprockets 20 and 21. Scrapers 13 also proceed in the same direction.
  • each scraper 13 has opposite ends coupled by stays 22 to opposite side chains 12.
  • Each scraper 13 is made of oil-resistant rubber and has an elongate rod-like form. It may be made of a metal or synthetic resins as well.
  • scraper 13 consists of round rod having a circular, i.e., non-flattened, sectional profile with a diameter of 27 mm, for instance. In case of using a round rod as scraper 13, its diameter is desirably 20 mm or above.
  • Each scraper 13 has contact surface 13a, which slides over the top of first and second portions 7a and 7b of plate 7, i.e., first and second surfaces 30 and 31 thereof.
  • One of scrapers 13 has cleaning projection 23 projecting from the side opposite contact surface 13a. Cleaning projection 23 slides over the bottom of storage tank 1 in reverse run 12b of chains 12.
  • Other scrapers 13 each have three spikes 24 projecting from the side opposite contact surface 13a. These spikes are spaced apart along the longitudinal direction of the scraper.
  • reference numeral 25 designates cover which is mounted on tank 1 to prevent scattering of cutting chips scraped by scrapers 13 along collecting plate 7.
  • Reference numeral 27 designates clean cutting oil outlet formed in side wall lb of tank 1. Clean cutting oil resulting from the removal of cutting chips and dust is led out through outlet 27. Motor 19 is mounted on cover 25.
  • Cutting oil used in a cutting machine or the like is supplied from supply pipe 6 to storage tank 1 through inlet 5. Since first portion 7a of collecting plate 7 extends right underneath inlet 5, the supplied cutting oil falls onto first portion 7a. Foreign particles such as cutting chips and dust contained in the cutting oil tend to sink due to their own weight. At the same time, they experience magnetic forces of attraction to magnet plate 8 constituting part of plate 7. Thus, the foreign particles are collected on the upper surface of portion 7a, i.e., first surface 30. The foreign particles which are collected in this way, are scraped and pushed by scrapers 13, which are sliding over the upper surface of plate 7 in the direction of arrow A, toward the extended end of portion 7b of plate 7 while being guided by cover 25. The foreign particles brought to the extended end of plate 7 are discharged through discharge port 3 into receiving box 4.
  • the liquid remaining in tank 1 becomes clean oil free from cutting chips and cutting dust.
  • the clean oil is let out through outlet 27.
  • spikes 24 are provided on scrapers 13.
  • scrapers 13 proceed below and past inlet 5 in the direction of arrow A, comparatively large curled cutting chips or dust contained in used cutting oil supplied through inlet 5 are pierced or otherwise caught by spikes 24.
  • spikes 24 there is no need for waiting the accumulation of large cutting chips or dust on top of plate 7, but they are immediately carried forth to discharge port 3.
  • no great burden is applied to scrapers 13.
  • each scraper 13 is inverted. That is, spikes 24 which have been directed up while scraper 13 has been proceeding along the upper surface of plate 7, are directed down after scraper 14 has cleared drive sprockets 14. The cutting chips or dust that have been held pierced or caught by spikes 24 are detached from inverted spikes 24 and fall due to their weight.
  • scrapers 13 are reoriented and directed obliquely downwards by direction change sprockets 20 and 21.
  • spikes 24 are merely reoriented by 180 degrees when they proceed round drive sprockets 14 from top to bottom thereof, they are turned by more than 180 degrees when they proceed past direction change sprockets 20 and 21. Therefore, the cutting chips and dust that have been carried by spikes 24 are detached satisfactorily and reliably.
  • each scraper 13 proceeds along the reverse run below plate 7. Therefore, cutting chips and dust containing in cutting oil supplied through inlet 3 will never be caught by scrapers 13 traveling along the reverse run below plate 7.
  • these foreign particles are liable to be caught by the scrapers in the reverse run before they reach the accumulation surface.
  • the scraper slides with the caught foreign particles along the accumulation surface. As the scraper proceeds along the accumulation surface, other foreign particles are caught on the already caught foreign particles. The caught foreign particles thus progressively build up into a mass.
  • each scraper 13 consists of a round rod with a diameter of approximately 27 mm, it has a sufficiently large thickness compared to the gap or distance between adjacent turns of a helically curled cutting chip. Therefore, there is no possibility for the scraper to advance into between adjacent turns of the chip, that is, there is no possibility for curled cutting chips or cutting dust to remain caught by the scraper. The scraper thus can maintain satisfactory scraping performance for long time.
  • scraper 13 has an octagonal sectional profile.
  • cutting chips and dust in used cutting oil are magnetic particles such as iron particles.
  • the use of magnet plate 8 for collecting plate 7 is effective for the collection of foreign particles such as cutting chips and dust.
  • foreign particles contained in used cutting oil are non-magnetic particles such as aluminum particles, however, plate 7 need not consist of magnet plate 8.

Landscapes

  • Auxiliary Devices For Machine Tools (AREA)
EP86100754A 1985-01-25 1986-01-21 Dispositif de séparation des copeaux et des poussières de découpage Withdrawn EP0189171A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP891585U JPS61125344U (fr) 1985-01-25 1985-01-25
JP8915/85 1985-01-25

Publications (2)

Publication Number Publication Date
EP0189171A2 true EP0189171A2 (fr) 1986-07-30
EP0189171A3 EP0189171A3 (fr) 1987-10-14

Family

ID=11705950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100754A Withdrawn EP0189171A3 (fr) 1985-01-25 1986-01-21 Dispositif de séparation des copeaux et des poussières de découpage

Country Status (2)

Country Link
EP (1) EP0189171A3 (fr)
JP (1) JPS61125344U (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332983B1 (en) * 1999-05-10 2001-12-25 Bunri Industries, Ltd. Chip treatment device
EP1256417A2 (fr) * 2001-05-08 2002-11-13 Tsubakimoto Mayfran, Inc. Système avec convoyeur de copeaux
WO2003041908A1 (fr) * 2001-11-14 2003-05-22 Mayfran International Systeme de transport et d'evacuation de copeaux, equipe d'un systeme de filtration
WO2004054756A1 (fr) * 2001-11-21 2004-07-01 Mayfran International Systeme de transport et d'evacuation de copeaux dote d'une fonction de separation
CN113118838A (zh) * 2021-05-21 2021-07-16 佛山市精弗斯智能制造有限公司 一种基于智能控制的机床加工系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1556195A1 (de) * 1967-09-19 1970-02-05 Spodig Heinrich Magnetischer Spaenefoerderer
US4154682A (en) * 1976-01-21 1979-05-15 Kaichiro Matsuoka Magnetic settler filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1556195A1 (de) * 1967-09-19 1970-02-05 Spodig Heinrich Magnetischer Spaenefoerderer
US4154682A (en) * 1976-01-21 1979-05-15 Kaichiro Matsuoka Magnetic settler filter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332983B1 (en) * 1999-05-10 2001-12-25 Bunri Industries, Ltd. Chip treatment device
EP1256417A2 (fr) * 2001-05-08 2002-11-13 Tsubakimoto Mayfran, Inc. Système avec convoyeur de copeaux
US6511597B2 (en) * 2001-05-08 2003-01-28 Tsubakimoto Mayfran,. Inc. Chip discharge conveyor system
EP1256417A3 (fr) * 2001-05-08 2004-01-28 Tsubakimoto Mayfran, Inc. Système avec convoyeur de copeaux
WO2003041908A1 (fr) * 2001-11-14 2003-05-22 Mayfran International Systeme de transport et d'evacuation de copeaux, equipe d'un systeme de filtration
WO2004054756A1 (fr) * 2001-11-21 2004-07-01 Mayfran International Systeme de transport et d'evacuation de copeaux dote d'une fonction de separation
CN113118838A (zh) * 2021-05-21 2021-07-16 佛山市精弗斯智能制造有限公司 一种基于智能控制的机床加工系统

Also Published As

Publication number Publication date
EP0189171A3 (fr) 1987-10-14
JPS61125344U (fr) 1986-08-06

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Inventor name: TASHIRO, MINORU