US3736902A - Apparatus for oiling sheet metal stock - Google Patents

Apparatus for oiling sheet metal stock Download PDF

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Publication number
US3736902A
US3736902A US00184489A US3736902DA US3736902A US 3736902 A US3736902 A US 3736902A US 00184489 A US00184489 A US 00184489A US 3736902D A US3736902D A US 3736902DA US 3736902 A US3736902 A US 3736902A
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US
United States
Prior art keywords
oil
chamber
conduit
container
compressed air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00184489A
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English (en)
Inventor
S Glanzer
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.)
Voestalpine AG
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Voestalpine AG
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Filing date
Publication date
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Publication of US3736902A publication Critical patent/US3736902A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/49—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2491—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2494—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device a liquid being supplied from a pressurized or compressible container to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor

Definitions

  • Stock-feeding means are operable to feed sheet metal stock through said inlet, chamber, and outlet along a predetermined path.
  • a plurality of nozzles open in said chamber and are spaced apart transversely to said path and directed toward said path and operable to discharge an oil-air mixture toward said path.
  • a suction conduit is connected to said chamber.
  • a compressor is connected between said suction conduit and a closed container and operable to such surplus oil-air mixture from said chamber and to deliver compressed air and oil to said container so as to form in said container a body of oil and a body of compressed air above said body of oil.
  • An oil conduit is connected 'to said nozzles and to said container to communicate with said body of oil.
  • a compressed air conduit is connected to said nozzles and to said container to communicate with said body of compressed air.
  • This invention relates to apparatus for oiling sheet metal stock in the form of strip, plate or sheet, which apparatus comprises a closed chamber, which is provided with a sealing inlet and a sealing outlet for the sheet metal stock, and a plurality of nozzles, which are disposed in the chamber and spaced apart transversely to. the direction of travel of the sheet metal stock and connected to an oil conduit and a compressed air conduit and serve to blow an oil-air mixture onto the sheet metal stock, a suction conduit for the surplus oil-air mixture being provided and connecting the chamber to a suction device.
  • the difficulties are avoided substantially in that the oil is sprayed to an applicator roll, which contacts the moving strip and is adapted to be driven in synchronism therewith.
  • the spraying device is operated with intervals of time, which depend on the speed of the strip.
  • the spraying period is constant so that oil in an amount which depends on the speed of travel of the metal strip is sprayed onto the applicator roll and transferred by the latter onto the strip.
  • the applicator rolls of such apparatus consist again of felt rolls, which are not satisfactory, as has been mentioned.
  • the atomization of the oil gives rise to difficulties and it has been attempted to avoid such difficulties by the use of injection pumps, such as are employed in engines of motor vehicles. Small air bubbles trapped in the oil result in an accumulation of air in the injection pumps so that the latter must be repeatedly vented.
  • Another apparatus which comprises nozzles that are disposed in a closed chamber and blow an oil-air mixture onto the strip metal moving through the chamber and through inlet and outlet openings thereof. This results in an oil film which is as uniform as desired.
  • the apparatus has the disadvantage that the resulting oil mist must be sucked from the chamber and the oil must be separated from the air by filter systems, which are expensive and complicated. Because the oil cannot be completely separated from the air, the air blown into the atmosphere still contains a considerable proportion of oil so that the opening costs of the plant are much increased.
  • the suction device consists of a compressor, a pressure conduit is connected to the compressor and leads to a closed container, which is partly filled with oil, the oil conduit leading to the nozzles is connected to said container at a point below the oil level therein and the compressed air conduit leading to the nozzles is connected to the container above the oil level therein.
  • the invention provides a substantially closed cycle, which enables a return of the sucked-off oil-air mixture into the container, which serves as an oil reservoir and a compressed air reservoir.
  • the oil-air mixture which has been compressed in the compressor flows through the pressure conduit into the container, in which a major portion of the mixture is segregated and the oil can fill only part of the container.
  • the pressure which is generated by the compressor is transmitted to the container above the oil level and forces the oil out of the container through the oil conduit leading to the nozzles, which are supplied with compressed air through the compressed air conduit from the container serving also as a compressed air reservoir.
  • the nozzles blow the oil onto the surface of the sheet metal to form a uniform film thereon.
  • the surplus oil-air mixture is discharged in the suction conduit.
  • a float is provided, which by means of a controller provides for an automatic control of the supply of fresh oil into the container.
  • the oil conduit and the compressed air conduit preferably incorporate respective pressure-reducing valves, by which the operating pressure can be adjusted independently of the compressor.
  • a by-pass conduit incorporating a pressure relief valve is connected between the pressure conduit and the suction conduit and by-passes the compressor.
  • the rate of air delivered by the compressor into the container may exceed the rate at which air is supplied from the container to the nozzles. This would result in an excessive pressure in the pressure conduit.
  • the pressure-relief valve in the by-pass conduit opens so that the compressor is short-circuited.
  • a chamber 1 defined by two housing parts contains a plurality of nozzles 2, which are spaced apart transversely to the direction of travel of the strip metal 3 and disposed above and below the latter.
  • the strip 3 extends through the chamber 1 and through a sealing inlet and a sealing outlet thereof and is moved by two v pairs of rollers.
  • One pair of rollers are designated 4 and disposed behind the plane of the drawing.
  • the other pair of rollers are disposed before the plane of the drawing.
  • These feed rollers are adjustable in height for adjustment to sheet metal stock differing in thickness.
  • a common oil conduit 5 and a common compressed air conduit 6 lead to the nozzles 2.
  • the oil conduit and the compressed air conduit incorporate respective pressure-reducing valves 7 so that the desired pressure for blowing an oil-air mixture onto the strip steel 3 can be adjusted independently of the compression by a compressor 8.
  • a suction conduit 9 extends from the chamber 1 to the compressor 8, which in the present example is an axial compressor.
  • the compressor 8 is connected by a pressure conduit 10 to a container 11, which is partly filled with oil.
  • the pressure conduit 10 incorporates a check valve 12.
  • the container 11 serves as a compressed air reservoir and as an oil reservoir.
  • the surplus oil-air mixture is withdrawn from the chamber 1 through the suction conduit 9 by the compressor 8, which is driven by a motor 13 and compresses the mixture and delivers it through the pressure conduit 10 to the container 11.
  • the oil which separates from the oil mist as it is compressed flows also through the pressure conduit 10 into the container 11.
  • the compressed air in the pressure zone 14 of the container 11 is maintained under a constant pressure because the oil level is automatically controlled by means of a float 15, which operates an electric switch 17, which by a controller, not shown, controls a valve 18 in an oil supply conduit.
  • the oil supply conduit 16 is connected to an oil supply tank, to which a drain conduit 19 is connected, which serves to return the oil that has collected at the bottom of the chamber 1 during the operation of the oiling apparatus.
  • the float 15, the switch 17 and the control device cause the valve 18 to open so that fresh oil can flow from the supply tank through the conduit 16 into the container 11.
  • the valve 18 is closed to block the conduit 16.
  • a pressure of about 5-6 kg/cm above atmospheric pressure is maintained in the pressure zone 14 and forces the oil through a fine filter 20 into the oil conduit 5.
  • the oil pressure desired for the operation of the nozzles can be adjusted by means of the pressure-reducing valve 7.
  • compressed air is supplied from the pressure zone 14 through the compressed air conduit 6 and the adjustable pressure-reducing valve 7 to the nozzles 2.
  • the last-mentioned pressure-reducing valve 7 serves to reduce the air pressure to the desired operating pressure.
  • the nozzles 2 result in a fine atomization of the oil and blow it onto the strip 3, which is continuously moved through the chamber 1.
  • the operation of the nozzles results in the production of an oil mist at a rate which depends on the rate at which compressed air is supplied.
  • the surplus oil-air mixture is sucked off through the suction conduit 9 and compressed to about 5-6 kg/cm?.
  • the compressor 8 delivers air into the pressure zone 14 of the container 11 at a rate which is higher than the rate at which air is supplied from the pressure zone through the conduit 6 to the nozzles 2. This results in an excessive pressure in the pressure conduit 10.
  • a pressure relief valve 21 opens, which is incorporated in a by-pass conduit 22, which by-passes the compressor 10 and is connected between the pressure conduit 10 and the suction conduit 9.
  • the pressure relief valve 21 is open, the compressor 8 is short-circuited. It is desirable to maintain in the chamber a pressure which is slightly subatmospheric so that the oil mist cannot escape from the chamber 1, e.g., at the joint between the two parts of the housing defining the chamber.
  • the subatmospheric pressure produced by the compressor causes a small amount of fresh air to be sucked into the chamber 1 so that there will be no def ciency of air during the operation of the oiling apparatus.
  • Apparatus for oiling sheet metal stock which comprises chamber-defining means defining a chamber, a sealing inlet to said chamber, and a sealing outlet from said chamber,
  • stock-feeding means operable to feed sheet metal stock through said inlet, chamber, and outlet along a predetermined path
  • a plurality of nozzles opening in said chamber and spaced apart transversely to said path and directed toward said path and operable to discharge an oilair mixture toward said path,
  • a compressor connected between said suction conduit and said container and operable to suck surplus oil-air mixture from said chamber and to deliver compressed air and oil to said container so as to form in said container a body of oil and a body of compressed air above said body of oil,
  • a compressed air conduit connected to said nozzles and to said container to communicate with said body of compressed air.
  • Apparatus as set forth in claim 1 which comprises a pressure-reducing valve incorporated in said oil conduit and a pressure-reducing valve incorporated in said compressed air conduit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nozzles (AREA)
  • Coating With Molten Metal (AREA)
US00184489A 1970-10-19 1971-09-28 Apparatus for oiling sheet metal stock Expired - Lifetime US3736902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT937870A AT299860B (de) 1970-10-19 1970-10-19 Vorrichtung zum Einölen eines band- oder tafelförmigen Bleches

Publications (1)

Publication Number Publication Date
US3736902A true US3736902A (en) 1973-06-05

Family

ID=3613634

Family Applications (1)

Application Number Title Priority Date Filing Date
US00184489A Expired - Lifetime US3736902A (en) 1970-10-19 1971-09-28 Apparatus for oiling sheet metal stock

Country Status (5)

Country Link
US (1) US3736902A (enrdf_load_stackoverflow)
AT (1) AT299860B (enrdf_load_stackoverflow)
DE (1) DE2145130A1 (enrdf_load_stackoverflow)
GB (1) GB1302495A (enrdf_load_stackoverflow)
IT (1) IT938679B (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814322A (en) * 1973-07-12 1974-06-04 Amchem Prod Mist coating of strip material
US3906895A (en) * 1971-12-24 1975-09-23 Nippon Paint Co Ltd Spray type apparatus for treatment of metal surface
US4285296A (en) * 1978-02-24 1981-08-25 Ball Corporation Lubricating apparatus
US4407845A (en) * 1981-07-15 1983-10-04 Schaming Edward J Ionic strip coating method
US4491498A (en) * 1982-04-01 1985-01-01 Owens-Corning Fiberglas Corporation Method of and apparatus for applying a laminated pressure-sensitive adhesive strip construction to a flexible sheet
US4498254A (en) * 1981-09-01 1985-02-12 Veb Kombinat Textima Spraying apparatus for laundry mangles
US4686123A (en) * 1986-01-30 1987-08-11 Amoco Corporation Turbulent flow liquid application apparatus and a method of turbulently applying a liquid onto a substrate
US4904505A (en) * 1988-03-18 1990-02-27 Armco Inc. Lubricant mist coating of metal sheet
US4998359A (en) * 1989-10-02 1991-03-12 The Rhymer Company Automatic wax lubricator for flatwork ironer
US10557679B2 (en) * 2016-12-22 2020-02-11 Timothy Lee Jones Fire alarm and tool oiling system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551365B1 (fr) * 1983-08-01 1986-03-28 Lorraine Laminage Dispositif pour huiler des toles en bande continue
CN105081234A (zh) * 2015-08-17 2015-11-25 廖子贵 一种铸造流涂装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736289A (en) * 1954-11-23 1956-02-28 Alfred W Allen Apparatus for applying a plastic coating to threads, yarns, etc.
US2960061A (en) * 1957-01-22 1960-11-15 Pennsalt Chemicals Corp Apparatus for applying a coating of controlled variable thickness to metal stock
US3172777A (en) * 1965-03-09 Process for depositing a water insoluble bactericide on a fabric
US3467061A (en) * 1967-07-31 1969-09-16 Humostan Corp The Spray coating apparatus
US3594228A (en) * 1967-08-01 1971-07-20 Northern Electric Co Colouring of sheathed continuous strands

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172777A (en) * 1965-03-09 Process for depositing a water insoluble bactericide on a fabric
US2736289A (en) * 1954-11-23 1956-02-28 Alfred W Allen Apparatus for applying a plastic coating to threads, yarns, etc.
US2960061A (en) * 1957-01-22 1960-11-15 Pennsalt Chemicals Corp Apparatus for applying a coating of controlled variable thickness to metal stock
US3467061A (en) * 1967-07-31 1969-09-16 Humostan Corp The Spray coating apparatus
US3594228A (en) * 1967-08-01 1971-07-20 Northern Electric Co Colouring of sheathed continuous strands

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906895A (en) * 1971-12-24 1975-09-23 Nippon Paint Co Ltd Spray type apparatus for treatment of metal surface
US3814322A (en) * 1973-07-12 1974-06-04 Amchem Prod Mist coating of strip material
US4285296A (en) * 1978-02-24 1981-08-25 Ball Corporation Lubricating apparatus
US4407845A (en) * 1981-07-15 1983-10-04 Schaming Edward J Ionic strip coating method
US4498254A (en) * 1981-09-01 1985-02-12 Veb Kombinat Textima Spraying apparatus for laundry mangles
US4491498A (en) * 1982-04-01 1985-01-01 Owens-Corning Fiberglas Corporation Method of and apparatus for applying a laminated pressure-sensitive adhesive strip construction to a flexible sheet
US4686123A (en) * 1986-01-30 1987-08-11 Amoco Corporation Turbulent flow liquid application apparatus and a method of turbulently applying a liquid onto a substrate
US4904505A (en) * 1988-03-18 1990-02-27 Armco Inc. Lubricant mist coating of metal sheet
US4998359A (en) * 1989-10-02 1991-03-12 The Rhymer Company Automatic wax lubricator for flatwork ironer
US10557679B2 (en) * 2016-12-22 2020-02-11 Timothy Lee Jones Fire alarm and tool oiling system

Also Published As

Publication number Publication date
IT938679B (it) 1973-02-10
DE2145130A1 (de) 1972-04-20
AT299860B (de) 1972-07-10
GB1302495A (enrdf_load_stackoverflow) 1973-01-10

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