WO1993022067A1 - Method of cleaning a vehicle body in a painting plant - Google Patents

Method of cleaning a vehicle body in a painting plant Download PDF

Info

Publication number
WO1993022067A1
WO1993022067A1 PCT/SE1993/000370 SE9300370W WO9322067A1 WO 1993022067 A1 WO1993022067 A1 WO 1993022067A1 SE 9300370 W SE9300370 W SE 9300370W WO 9322067 A1 WO9322067 A1 WO 9322067A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle body
robot
cleaning
particles
suction means
Prior art date
Application number
PCT/SE1993/000370
Other languages
French (fr)
Inventor
Kenneth Neikter
Original Assignee
ABB Fläkt AB
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 ABB Fläkt AB filed Critical ABB Fläkt AB
Publication of WO1993022067A1 publication Critical patent/WO1993022067A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
    • B08B1/32—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area

Definitions

  • the present invention relates to a method of cleaning a vehicle body in a painting plant.
  • a plant for painting (spray-painting) vehicle bodies the body to be painted is passed through a number of painting stations, finishing stations and cleaning stations.
  • this cleaning operation comprises the steps of wet-washing the outside of the vehicle body by means of brush assemblies and subsequent drying in a hot-air dryer.
  • the vehicle body is dry-washed by means of brush assemblies fitted with suction means for sucking out particles which are released from the surface of the vehicle body.
  • paint is sprayed against the vehicle body. Dust particles are then released from the internal parts of the body and are whirled up and then fall down onto the surface just painted, thereby of course deteriorating the result.
  • the object of the present invention therefore is to provide a method of cleaning a vehicle body in a painting plant such that this drawback can be eliminated.
  • this object is achieved in that a robot-controlled blowing means is introduced into the vehicle body and moved therein in a predetermined movement pattern to blow out a gaseous pressure medium, such as compressed air, towards the internal parts of the vehicle body, and that particles which are released and whirled up during the blowing out are sucked out by a suction means.
  • a gaseous pressure medium such as compressed air
  • the cleaning is preferably carried out in two steps, viz. a first step in which a robot-controlled blowing means is introduced into the vehicle body from one side thereof to blow out a gaseous pressure medium towards the internal parts in one half of the vehicle body, and released and whirled-up particles are sucked out by a suction means arranged on the other side of the vehicle body, and a second step in which a robot-controlled blow ⁇ ing means is introduced into the vehicle body from said other side thereof to blow out a gaseous pressure medium towards the internal parts in the other half of the vehicle body, and particles which are then released and whirled up are sucked out by a suctions means arranged on said one side of the vehicle body.
  • the robot-controlled suction means is suitably introduced into the vehicle body through side window cut ⁇ outs therein.
  • FIG. 1 illustrates a cleaning station in which the method according to the invention is carried out.
  • Fig. 2 is a front view of a vehicle body placed in the cleaning station.
  • Fig. 1 illustrates a cleaning station 1 which is included in a plant for painting vehicle bodies 2 and is followed by a painting station (not shown).
  • the cleaning station is divided into three zones. A, B and C.
  • a con ⁇ veyor path 3 extends through the plant for conveying the vehicle bodies 2 through all stations of the plant in the direction of the arrows P.
  • an industrial robot 4 which is of e.g. the type supplied by ABB Trallfa A/S under the designation TR-5000 or by ABB Robotics AB under the designation IRB 3200.
  • the robot 4 is reciprocable along a guide 5 extend ⁇ ing in parallel with the conveyor path 3 in the respective zone A, B.
  • the robot 4 and the guide 5 are arranged to the left (seen in the transport direction P) of the conveyor path 3, and in zone B they are arranged to the right thereof.
  • Each robot 4 carries a blowing means 6 connected to a compressed air source (not shown).
  • a suction means 7 is arranged in each of the zones A and B.
  • the suction means 7 are fixedly arrang ⁇ ed in the respective zone A, B essentially opposite the guide 5.
  • the suctions means 7 are connected via a suction conduit 8 to a fan (not shown).
  • Each suction means 7 extends both longitudinally (see Fig. 1) and vertically (see Fig. 2) above the superstructure of the vehicle body 2 to cover the side window cutouts of the body.
  • Each suctions means 7 has on its side facing the vehicle body 2 a circumferential, easily flexible sealing curtain 9 which engages the vehicle body 2 when this is positioned essentially opposite the suction means 7.
  • the dust or the particles that are blown off and whirled up during this blowing operation are sucked out by the suction means 7 at the right side of the vehicle body 2.
  • zone B in which it is stopped essentially opposite the suction means 7 therein.
  • the sealing curtain 9 of the suction means 7 encloses in this position the side window cutouts on the left side of the vehicle body 2.
  • the robot-controlled blowing means 6 is introduced into the vehicle body 2 through the side window cutouts on the right side thereof and, while blowing out compressed air, is moved by the robot 4 inside the body 2 in a predetermined movement pattern which corresponds to that of the blowing means 6 in zone A. In this case, the blowing means 6 sweeps over the left half of the vehicle body 2.
  • the dust or the particles which are blown off and whirled up during this blowing operation are sucked out by the suction means 7 on the left side of the vehicle body 2.
  • zone C When the blowing means 6 in zone B has finished its blowing operation and been removed from the interior of the vehicle body 2, the body is advanced to zone C in which its exterior is cleaned.
  • This external cleaning is carried out by means of brush assemblies 10, 11 and 12 which are fitted with suction means for sucking out released particles.
  • the rear brush assembly 12 can advantageously be replaced by a plurality of smaller brush assemblies.
  • the brush assemblies 10 and 11 are movable in lateral direction, i.e. transversely of the transport direction P, and the brush assembly 12 is vertically movable so as to be able to follow the vehicle body 2 advancing through zone C.

Landscapes

  • Cleaning In General (AREA)

Abstract

In a method of cleaning a vehicle body (2) in a painting plant, a robot-controlled blowing means (6) is introduced into the vehicle body (2) and moved therein in a predetermined movement pattern to blow out a gaseous pressure medium, such as compressed air, towards the internal parts of the vehicle body (2). Particles which are released and whirled up during this blowing out are sucked out by a suction means (7).

Description

METHOD OF CLEANING A VEHICLE BODY IN A PAINTING PLANT
The present invention relates to a method of cleaning a vehicle body in a painting plant. In a plant for painting (spray-painting) vehicle bodies, the body to be painted is passed through a number of painting stations, finishing stations and cleaning stations. In each cleaning station, the vehicle body is cleaned before being painted in a subsequent painting station. In a prior art method, this cleaning operation comprises the steps of wet-washing the outside of the vehicle body by means of brush assemblies and subsequent drying in a hot-air dryer. In another prior art method, the vehicle body is dry-washed by means of brush assemblies fitted with suction means for sucking out particles which are released from the surface of the vehicle body. In the subsequent painting operation, paint is sprayed against the vehicle body. Dust particles are then released from the internal parts of the body and are whirled up and then fall down onto the surface just painted, thereby of course deteriorating the result.
The object of the present invention therefore is to provide a method of cleaning a vehicle body in a painting plant such that this drawback can be eliminated. According to the present invention, this object is achieved in that a robot-controlled blowing means is introduced into the vehicle body and moved therein in a predetermined movement pattern to blow out a gaseous pressure medium, such as compressed air, towards the internal parts of the vehicle body, and that particles which are released and whirled up during the blowing out are sucked out by a suction means.
The cleaning is preferably carried out in two steps, viz. a first step in which a robot-controlled blowing means is introduced into the vehicle body from one side thereof to blow out a gaseous pressure medium towards the internal parts in one half of the vehicle body, and released and whirled-up particles are sucked out by a suction means arranged on the other side of the vehicle body, and a second step in which a robot-controlled blow¬ ing means is introduced into the vehicle body from said other side thereof to blow out a gaseous pressure medium towards the internal parts in the other half of the vehicle body, and particles which are then released and whirled up are sucked out by a suctions means arranged on said one side of the vehicle body. The robot-controlled suction means is suitably introduced into the vehicle body through side window cut¬ outs therein.
The invention will now be described in more detail with reference to the accompanying drawings. Fig. 1 illustrates a cleaning station in which the method according to the invention is carried out.
Fig. 2 is a front view of a vehicle body placed in the cleaning station.
Fig. 1 illustrates a cleaning station 1 which is included in a plant for painting vehicle bodies 2 and is followed by a painting station (not shown). The cleaning station is divided into three zones. A, B and C. A con¬ veyor path 3 extends through the plant for conveying the vehicle bodies 2 through all stations of the plant in the direction of the arrows P.
In each of the zones A and B of the cleaning station 1 there is arranged an industrial robot 4 which is of e.g. the type supplied by ABB Trallfa A/S under the designation TR-5000 or by ABB Robotics AB under the designation IRB 3200. The robot 4 is reciprocable along a guide 5 extend¬ ing in parallel with the conveyor path 3 in the respective zone A, B. In zone A, the robot 4 and the guide 5 are arranged to the left (seen in the transport direction P) of the conveyor path 3, and in zone B they are arranged to the right thereof. Each robot 4 carries a blowing means 6 connected to a compressed air source (not shown). At the opposite side of the conveyor path 3 relative to the robot 4, a suction means 7 is arranged in each of the zones A and B. The suction means 7 are fixedly arrang¬ ed in the respective zone A, B essentially opposite the guide 5. The suctions means 7 are connected via a suction conduit 8 to a fan (not shown). Each suction means 7 extends both longitudinally (see Fig. 1) and vertically (see Fig. 2) above the superstructure of the vehicle body 2 to cover the side window cutouts of the body. Each suctions means 7 has on its side facing the vehicle body 2 a circumferential, easily flexible sealing curtain 9 which engages the vehicle body 2 when this is positioned essentially opposite the suction means 7.
When a vehicle body 2 has been moved into zone A, it is stopped essentially opposite the suction means 7 there¬ in, whereby the sealing curtain 9 of the suction means 7 will enclose the side window cutouts on the right side of the vehicle body 2. The robot-controlled blowing means 6 is introduced into the vehicle body 2 through the side window cutouts on the left side and, while blowing out compressed air, is moved by the robot 4 inside the body 2 in a predetermined movement pattern which is dependent of the vehicle type and model. The blowing means 6 sweeps over the right half of the vehicle body 2. During its movement, the blowing means 6 is introduced into the cavities of the doors, thereby blowing them clean. It is also moved over the chinks of the doors and similar inaccessible cavities to blow away dust therefrom. The dust or the particles that are blown off and whirled up during this blowing operation are sucked out by the suction means 7 at the right side of the vehicle body 2. When the blowing means 6 in zone A has finished its blowing operation and been removed from the interior of the vehicle body 2, the body is advanced to zone B in which it is stopped essentially opposite the suction means 7 therein. The sealing curtain 9 of the suction means 7 encloses in this position the side window cutouts on the left side of the vehicle body 2. The robot-controlled blowing means 6 is introduced into the vehicle body 2 through the side window cutouts on the right side thereof and, while blowing out compressed air, is moved by the robot 4 inside the body 2 in a predetermined movement pattern which corresponds to that of the blowing means 6 in zone A. In this case, the blowing means 6 sweeps over the left half of the vehicle body 2. The dust or the particles which are blown off and whirled up during this blowing operation, are sucked out by the suction means 7 on the left side of the vehicle body 2.
When the blowing means 6 in zone B has finished its blowing operation and been removed from the interior of the vehicle body 2, the body is advanced to zone C in which its exterior is cleaned. This external cleaning is carried out by means of brush assemblies 10, 11 and 12 which are fitted with suction means for sucking out released particles. In the shown plant, use is made of two front brush assemblies 10 positioned each on one side of the body 2 and having a vertical axis, two intermediate brush assemblies 11 arranged each on one side of the body 2 at a slightly higher level than the brush assemblies 10 and having a vertical axis, and a rear brush assembly 12 having a horizontal axis. The rear brush assembly 12 can advantageously be replaced by a plurality of smaller brush assemblies. The brush assemblies 10 and 11 are movable in lateral direction, i.e. transversely of the transport direction P, and the brush assembly 12 is vertically movable so as to be able to follow the vehicle body 2 advancing through zone C. The brush assemblies 10, 11 and
12 can be of any prior art type, but are advantageously of the type described in Swedish Patent Application No.
9200586-7.

Claims

1. Method of cleaning a vehicle body (2) in a pain - ing plant, c h a r a c t e r i s e d in that a robot- controlled blowing means (6) is introduced into the vehicle body (2) and moved therein in a predetermined movement pattern to blow out a gaseous pressure medium, such as compressed air, towards the internal parts of the vehicle body (2), and that particles which are released and whirled up during the blowing out are sucked out by a suction means (7).
2. Method as claimed in claim 1, c h a r a c ¬ t e r i s e d in that the cleaning operation is carried out in two steps, viz. a first step in which a robot- controlled blowing means (6) is introduced in the vehicle body (2) from one side thereof to blow out a gaseous pressure medium towards the internal parts in one half of the vehicle body, and particles which are then released and whirled up are sucked out by a suction means (7) arranged on the other side of the vehicle body, and a second step in which a robot-controlled blowing means (6) is introduced into the vehicle body (2) from said other side thereof to blow out a gaseous pressure medium towards the internal parts in the other half of the vehicle body, and particles which are then released and whirled up are sucked out by a suction means (7) arranged on said one side of the vehicle body.
3. Method as claimed in claim 1 or 2, c h a r a c - t e r i s e d in that the robot-controlled blowing means
(6) is introduced into the vehicle body (2) through side window cutouts therein.
PCT/SE1993/000370 1992-04-28 1993-04-26 Method of cleaning a vehicle body in a painting plant WO1993022067A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9201320A SE470228B (en) 1992-04-28 1992-04-28 Ways to clean a vehicle body in a paint system
SE9201320-0 1992-04-28

Publications (1)

Publication Number Publication Date
WO1993022067A1 true WO1993022067A1 (en) 1993-11-11

Family

ID=20386073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000370 WO1993022067A1 (en) 1992-04-28 1993-04-26 Method of cleaning a vehicle body in a painting plant

Country Status (3)

Country Link
AU (1) AU4275293A (en)
SE (1) SE470228B (en)
WO (1) WO1993022067A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005025736A1 (en) * 2005-06-04 2006-12-07 Daimlerchrysler Ag Welding beads removing method for use in internal combustion engine, involves brushing off workpiece surface by using brushes that rotates around its central axis of rotation, and removing welding beads from workpiece surface
DE102009020114A1 (en) * 2009-05-06 2010-11-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Cleaning system for motor vehicle body components
WO2023001528A1 (en) * 2021-07-23 2023-01-26 Dürr Systems Ag Cleaning facility and cleaning method for cleaning a component, preferably a vehicle body component

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498414A (en) * 1981-11-30 1985-02-12 Mazda Motor Corporation Vehicle body painting robot
WO1991003322A1 (en) * 1989-09-05 1991-03-21 ABB Fläkt AB Method and apparatus for removing solvent vapours

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498414A (en) * 1981-11-30 1985-02-12 Mazda Motor Corporation Vehicle body painting robot
WO1991003322A1 (en) * 1989-09-05 1991-03-21 ABB Fläkt AB Method and apparatus for removing solvent vapours

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005025736A1 (en) * 2005-06-04 2006-12-07 Daimlerchrysler Ag Welding beads removing method for use in internal combustion engine, involves brushing off workpiece surface by using brushes that rotates around its central axis of rotation, and removing welding beads from workpiece surface
DE102009020114A1 (en) * 2009-05-06 2010-11-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Cleaning system for motor vehicle body components
WO2010127848A2 (en) * 2009-05-06 2010-11-11 Dürr Systems GmbH Cleaning system for motor vehicle body components
WO2010127848A3 (en) * 2009-05-06 2011-03-17 Dürr Systems GmbH Cleaning system for motor vehicle body components
WO2023001528A1 (en) * 2021-07-23 2023-01-26 Dürr Systems Ag Cleaning facility and cleaning method for cleaning a component, preferably a vehicle body component

Also Published As

Publication number Publication date
AU4275293A (en) 1993-11-29
SE9201320D0 (en) 1992-04-28
SE9201320L (en) 1993-10-29
SE470228B (en) 1993-12-13

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