US3915114A - Machine for spray coating irregular shapes - Google Patents

Machine for spray coating irregular shapes Download PDF

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Publication number
US3915114A
US3915114A US487191A US48719174A US3915114A US 3915114 A US3915114 A US 3915114A US 487191 A US487191 A US 487191A US 48719174 A US48719174 A US 48719174A US 3915114 A US3915114 A US 3915114A
Authority
US
United States
Prior art keywords
shape
fixture
coated
rotating
spray device
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
US487191A
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English (en)
Inventor
John Franklin Pelton
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.)
Praxair ST Technology Inc
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Priority to US487191A priority Critical patent/US3915114A/en
Priority to CA230,032A priority patent/CA1046267A/en
Priority to DE7521238U priority patent/DE7521238U/de
Priority to SE7507867A priority patent/SE427902B/xx
Priority to FR7521531A priority patent/FR2277626A1/fr
Priority to GB28837/75A priority patent/GB1516323A/en
Priority to CH896975A priority patent/CH600957A5/xx
Application granted granted Critical
Publication of US3915114A publication Critical patent/US3915114A/en
Assigned to MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MORGAN BANK ( DELAWARE ) AS COLLATERAL ( AGENTS ) SEE RECORD FOR THE REMAINING ASSIGNEES. reassignment MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MORGAN BANK ( DELAWARE ) AS COLLATERAL ( AGENTS ) SEE RECORD FOR THE REMAINING ASSIGNEES. MORTGAGE (SEE DOCUMENT FOR DETAILS). Assignors: STP CORPORATION, A CORP. OF DE.,, UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,, UNION CARBIDE CORPORATION, A CORP.,, UNION CARBIDE EUROPE S.A., A SWISS CORP.
Assigned to UNION CARBIDE CORPORATION, reassignment UNION CARBIDE CORPORATION, RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MORGAN BANK (DELAWARE) AS COLLATERAL AGENT
Assigned to UNION CARBIDE COATINGS SERVICE TECHNOLOGY CORPORATION reassignment UNION CARBIDE COATINGS SERVICE TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNION CARBIDE COATINGS SERVICE CORPORATION
Anticipated expiration legal-status Critical
Assigned to PRAXAIR S.T. TECHNOLOGY, INC. reassignment PRAXAIR S.T. TECHNOLOGY, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 06/12/1992 Assignors: UNION CARBIDE COATINGS SERVICE TECHNOLOGY CORPORATION
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0645—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation
    • B05B13/0663—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation and the hollow bodies being translated in a direction parallel to the rotational axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0426—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved along a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0645—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation
    • B05B13/0672—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation and the inclination or the distance of a treating nozzle being modified relative to the rotation axis, e.g. for treating irregular internal surfaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying

Definitions

  • This invention relates to a machine for spray coating substrates and more particularly to such a machine for coating irregular shapes whereby a coating of uniform thickness and quality is obtained.
  • a round cylindrical part is to be coated by a spray process, such as the plasma spray process
  • the part is rotated on its own axis at constant speed, the spray device is positioned a fixed distance away and aimed so that the spray strikes the surface at about a 90 angle and the spray device is moved at a constant speed in a direction parallel to the axis of rotation of the part.
  • the angle of the spray device relative to the part surface was not held constant, but the spray device was held in a fixed position.
  • the main object of this invention is to provide a machine that will produce uniform coating thicknesses on irregular shapes.
  • Another object is to provide such a machine that is relatively easy to construct and maintain.
  • Yet another object is to provide a machine for producing a uniform coating thickness on trochoid combustion engine housing using a plasma spray device.
  • FIG. I is a schematic drawing in elevation illustrating the principles of the invention.
  • FIG. la is a side elevation partially in cross-sections of the apparatus shown in FIG. 1;
  • FIGS. 2a through f are diagrams of a trochoid housing in various positions during rotation, showing the angular relationship of the spraying device relative to the surface to be coated.
  • the above objects are achieved in a general way by rotating the part to be coated at a constant speed about its axis of symmetry (or an axis closest to being an axis of symmetry) and by compensating for variations in surface speed, standoff distances and impingement angle by moving the relatively light-weight spraying device.
  • Variations in part surface speed are compensated for by moving the spray device parallel to-the direction of surface motion either in the same direction or in the opposite direction as required.
  • Variations in standoff are compensated for by moving the spray device in a radial direction.
  • Variations in impingement angle are compensated for by rotating the spraying device about an axis parallel to the part rotation axis.
  • a machine for metal spray coating irregular shapes which includes in combination with a fixture for receiving irregular shapes to be coated; means for rotating said fixture and shape about an axis in the Z-direction; and means for moving said fixture and shape linearly in the direction of the axis of rotation of the shape, a base; a support system mounted on the base and capable of providing movement in the X and Y direction; a spray device pivotally secured to said support system and located adjacent the shape to be coated so as to deposit coating material on the surface thereof and being movable in the X and Y direction.
  • FIG. 1 a typical machine for practicing the invention is shown generally at M in FIG. 1.
  • the machine shown embodies the principals of the invention as they would be employed to construct a machine for coating trochoid engine housings H.
  • the engine housing H is subject to two motions.
  • the first motion is rotational as designated by w.
  • the housing is rotated at a constant angular velocity about an axis through point 0 which corresponds to the axis of the housing.
  • the second motion is linear in the Z-direction as indicated by the arrow in FIG. la so as to maintain a constant rate of travel past the spray device or torch D in this case in the housings axial direction.
  • FIG. 2 shows the desired relation of the centerlines of links L and L at six points during one-quarter of the trochoids revolution about 0.
  • Angles (b, through 4), indicate the motion of link L during the rotation of the housing. The magnitude of these angles increases from zero for d), to a maximum value near (b then decreases to a zero value for (11 As the trochoid continues to revolve in the next quarter revolution, the value of the angles will be the same for each step of the sequence with the sequence being reversed and the torch inclination being on the opposite side of the center line.
  • cam C in order to maintain constant surface speed, has a direct interaction with the angular torch position. If links L and L are exactly the same length, then cam C can be made the same shape as cam C and with proper synchronization there will be no angular motion of L relative to L The angular motion then becomes a product of the deviations in the shape of cam C from that of cam C It is also obvious that the motions described are not perfectly linear but, in fact, curve linear. If the lengths of the various linkage members are chosen sufficiently long, the motions can be treated as linear.
  • the spraying device could be any kind of metal spraying torch, i.e., electric or oxy-fuel gas flame.
  • the part to be coated could be any irregular shape, for example, elyptical, egg shaped, etc.
  • the support mechanism for moving the coating device could be typical machine cross slides together with a torch rotating device.
  • the motions that are produced by cams could be produced by tape, computer or other electronically controlled moving device.
  • the cams themselves need not be designed to make two revolutions for one revolution of the housing. Such design is used in the preferred embodiment for reasons of simplified construction.
  • a machine for spray coating of irregular shapes wherein relative motion is provided between said irregular shapes and said machine in the X, Y and Z- direction, comprising the combination of a fixture for receiving an irregular shape to be coated, means operatively related to said fixture for rotating said fixture and shape about an axis in the Z-direction and means operatively related to said fixture for moving said fixture and shape linearly in the direction of the axis of rotation of said shape; with base; a support system mounted on said base and capable of providing movement in the X and Y directions', a spray device pivotally secured to said support system and located adjacent said shape to be coated so as to deposit coating material on the surface thereof and being movable in the X and Y direction relative to the surface to be coated in response to movement of said support system; means correlated to the configuration of said shape for moving the support system in the X and Y direction as said shape rotates thereby maintaining a constant relative speed and a constant distance between the spray device and the surface of said rotating shape, a drive system attached to said spray device to
  • a machine for spray coating of irregular shapes wherein relative motion is provided between said irregular shapes and said machine in the X, Y and Z- directions, comprising in combination a fixture supporting the irregular shape to be coated;
  • a four bar linkage pivotally mounted to said base with each of said four bars being pivoted to each other to form a parallelogram linkage
  • a metal spraying device pivotally mounted to said four bar linkage at a point diagonally opposite the point where said four bar linkage is pivotally mounted to said base and positioned relative to said fixture and shape so as to deposit coating material onto said shape
  • means associated with the four bar linkage and correlated to the shape to be coated for causing motion of said spray device relative to the rotational motion of said shape so as to maintain a constant relative speed between the spraying device and the rotating shape
  • means associated with the four bar linkage and correlated with the shape to be coated for moving said spraying device to and from the surface of said rotating shape to maintain a constant distance between said spraying device and the surface of said rotating shape regardless of changes in contour of said surface
  • a second linkage means pivotally mounted on said base and connected to said spraying device to cause angular motion of said spraying device relative to said rotating surface

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Spray Control Apparatus (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating By Spraying Or Casting (AREA)
US487191A 1974-07-10 1974-07-10 Machine for spray coating irregular shapes Expired - Lifetime US3915114A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US487191A US3915114A (en) 1974-07-10 1974-07-10 Machine for spray coating irregular shapes
CA230,032A CA1046267A (en) 1974-07-10 1975-06-24 Machine for spray coating irregular shapes
DE7521238U DE7521238U (de) 1974-07-10 1975-07-04 Vorrichtung zum spruehbeschichten einer unregelmaessigen oberflaeche eines koerpers mit einer schicht gleichfoermiger dicke und qualitaet
FR7521531A FR2277626A1 (fr) 1974-07-10 1975-07-09 Machine de revetement d'objets de formes irregulieres par pulverisation
GB28837/75A GB1516323A (en) 1974-07-10 1975-07-09 Spraying machines
CH896975A CH600957A5 (en:Method) 1974-07-10 1975-07-09
SE7507867A SE427902B (sv) 1974-07-10 1975-07-09 Anordning for sprutbeleggning av foremal med oregelbunden form.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US487191A US3915114A (en) 1974-07-10 1974-07-10 Machine for spray coating irregular shapes

Publications (1)

Publication Number Publication Date
US3915114A true US3915114A (en) 1975-10-28

Family

ID=23934750

Family Applications (1)

Application Number Title Priority Date Filing Date
US487191A Expired - Lifetime US3915114A (en) 1974-07-10 1974-07-10 Machine for spray coating irregular shapes

Country Status (7)

Country Link
US (1) US3915114A (en:Method)
CA (1) CA1046267A (en:Method)
CH (1) CH600957A5 (en:Method)
DE (1) DE7521238U (en:Method)
FR (1) FR2277626A1 (en:Method)
GB (1) GB1516323A (en:Method)
SE (1) SE427902B (en:Method)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334495A (en) * 1978-07-11 1982-06-15 Trw Inc. Method and apparatus for use in making an object
EP0221845A1 (de) * 1985-10-25 1987-05-13 Siegfried Frei Verfahren zum Auftragen einer Pulverschicht auf die Schweissnaht eines Dosenrumpfes
US4866241A (en) * 1988-03-30 1989-09-12 Union Carbide Corporation Plasma spray apparatus for coating irregular internal surfaces
US5314722A (en) * 1989-06-29 1994-05-24 Fanuc Ltd Method of applying a material to a rotating object by using a robot
FR2965491A1 (fr) * 2010-10-05 2012-04-06 Sgd Sa Procede de revetement et machine de revetement correspondante
CN108818253A (zh) * 2018-06-15 2018-11-16 张弘历 一种用于表面处理的设备
CN113070169A (zh) * 2021-04-19 2021-07-06 深圳市弘德胜自动化设备有限公司 新型电子纸涂覆设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6877972B2 (en) * 2001-10-16 2005-04-12 Lear Corporation Spray urethane tool and system
DE102006056230B4 (de) * 2006-11-29 2018-10-11 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Innenbeschichten eines Hohlkörpers
FR2944007B1 (fr) 2009-04-03 2012-06-08 Sgd Sa Procede de fabrication d'un recipient en verre et recipient correspondant.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121024A (en) * 1960-03-22 1964-02-11 Gen Motors Corp Electrostatic painting apparatus
US3596632A (en) * 1968-12-31 1971-08-03 Fownes Brothers & Co Inc Adhesive applicator
US3709190A (en) * 1970-02-14 1973-01-09 Ransburg Gmbh Coating apparatus
US3802911A (en) * 1971-01-28 1974-04-09 Youngstown Sheet And Tube Co Method for controlling the coating thickness of a coated metal strip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121024A (en) * 1960-03-22 1964-02-11 Gen Motors Corp Electrostatic painting apparatus
US3596632A (en) * 1968-12-31 1971-08-03 Fownes Brothers & Co Inc Adhesive applicator
US3709190A (en) * 1970-02-14 1973-01-09 Ransburg Gmbh Coating apparatus
US3802911A (en) * 1971-01-28 1974-04-09 Youngstown Sheet And Tube Co Method for controlling the coating thickness of a coated metal strip

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334495A (en) * 1978-07-11 1982-06-15 Trw Inc. Method and apparatus for use in making an object
US4358471A (en) * 1978-07-11 1982-11-09 Trw Inc. Control apparatus
EP0221845A1 (de) * 1985-10-25 1987-05-13 Siegfried Frei Verfahren zum Auftragen einer Pulverschicht auf die Schweissnaht eines Dosenrumpfes
CH668010A5 (de) * 1985-10-25 1988-11-30 Siegfried Frei Vorrichtung zum auftragen einer pulverschicht auf die schweissnaht eines dosenrumpfes.
US4866241A (en) * 1988-03-30 1989-09-12 Union Carbide Corporation Plasma spray apparatus for coating irregular internal surfaces
EP0336630A1 (en) * 1988-03-30 1989-10-11 Praxair S.T. Technology, Inc. Apparatus for coating internal surfaces
US5314722A (en) * 1989-06-29 1994-05-24 Fanuc Ltd Method of applying a material to a rotating object by using a robot
FR2965491A1 (fr) * 2010-10-05 2012-04-06 Sgd Sa Procede de revetement et machine de revetement correspondante
EP2438994A1 (fr) * 2010-10-05 2012-04-11 Sgd S.A. Procédé de revêtement et machine de revêtement correspondante
US8746166B2 (en) 2010-10-05 2014-06-10 Sgd S.A. Method and machine for coating a surface of a hollow body made of glass
CN108818253A (zh) * 2018-06-15 2018-11-16 张弘历 一种用于表面处理的设备
CN113070169A (zh) * 2021-04-19 2021-07-06 深圳市弘德胜自动化设备有限公司 新型电子纸涂覆设备
CN113070169B (zh) * 2021-04-19 2022-08-05 深圳市弘德胜自动化设备有限公司 电子纸涂覆设备

Also Published As

Publication number Publication date
SE427902B (sv) 1983-05-24
CA1046267A (en) 1979-01-16
GB1516323A (en) 1978-07-05
FR2277626A1 (fr) 1976-02-06
SE7507867L (sv) 1976-01-12
DE7521238U (de) 1976-04-29
FR2277626B1 (en:Method) 1982-11-12
CH600957A5 (en:Method) 1978-06-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MOR

Free format text: MORTGAGE;ASSIGNORS:UNION CARBIDE CORPORATION, A CORP.,;STP CORPORATION, A CORP. OF DE.,;UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,;AND OTHERS;REEL/FRAME:004547/0001

Effective date: 19860106

AS Assignment

Owner name: UNION CARBIDE CORPORATION,

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MORGAN BANK (DELAWARE) AS COLLATERAL AGENT;REEL/FRAME:004665/0131

Effective date: 19860925

AS Assignment

Owner name: UNION CARBIDE COATINGS SERVICE TECHNOLOGY CORPORAT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE COATINGS SERVICE CORPORATION;REEL/FRAME:005240/0883

Effective date: 19900102

AS Assignment

Owner name: PRAXAIR S.T. TECHNOLOGY, INC., COLORADO

Free format text: CHANGE OF NAME;ASSIGNOR:UNION CARBIDE COATINGS SERVICE TECHNOLOGY CORPORATION;REEL/FRAME:006334/0986

Effective date: 19920611