EP2658660A1 - Cabine de peinture destinée à des installations de peinture pour des produits - Google Patents

Cabine de peinture destinée à des installations de peinture pour des produits

Info

Publication number
EP2658660A1
EP2658660A1 EP11810849.7A EP11810849A EP2658660A1 EP 2658660 A1 EP2658660 A1 EP 2658660A1 EP 11810849 A EP11810849 A EP 11810849A EP 2658660 A1 EP2658660 A1 EP 2658660A1
Authority
EP
European Patent Office
Prior art keywords
guns
paint booth
painting
distance
booth
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Withdrawn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
EP11810849.7A
Other languages
German (de)
English (en)
Inventor
Gianni GIARDINI
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.)
Trasmetal SpA
Original Assignee
Trasmetal SpA
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 Trasmetal SpA filed Critical Trasmetal SpA
Publication of EP2658660A1 publication Critical patent/EP2658660A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B05B13/0278—Arrangement or mounting of spray heads
    • 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
    • B05B13/0405—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 reciprocating or oscillating spray heads
    • B05B13/041—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 reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
    • B05B13/0415—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 reciprocating or oscillating spray heads with spray heads reciprocating along a straight line the angular position of the spray heads relative to the straight line being modified during the reciprocating movement
    • 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
    • B05B14/44—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using walls specially adapted for promoting separation of the excess material from the air, e.g. baffle plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/68—Arrangements for adjusting the position of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse 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

Definitions

  • the present invention relates to an improved paint booth for applying powder paints, in particular for automated coating plants for products that use powder paint dispensing means comprising at least two guns positioned opposite one another.
  • painting plants for products dedicated to the use of powder paints are provided with one or more booths in which the product is subjected to one or more series of coatings, for example one or more painting stages and/or one or more stages of baking/crosslinking with IR or UV lamps, or with hot air or induction heating.
  • Booths in particular in the case of electrostatic powder painting, normally have a structure comprising a frame or framework which supports a plurality of walls positioned in such a manner that their internal surface defines a space adapted to house one or more dispensers of painting materials. Painting takes place by making the products to be treated pass through the space inside the booth so that they are exposed to dispensing of the powder by means of specific dispensing means. The dispensing means are in turn moved, for example along a vertical axis, in such a manner as to coat the whole surface of the product.
  • a first function relates to the need to have deposition surfaces on which the powder that does not adhere to the product, or which is not drawn up by the suction system, can deposit, so as to prevent its diffusion in the surrounding environment.
  • a second function relates to the need to remove the unused powder from the walls on which it has deposited, in order to recover and reuse said powder, and above all in order to prevent the powder from detaching from the walls and depositing on products during subsequent painting operations with different colours, contaminating their final colouring.
  • a first solution consists simply of operations carried out manually by operators, who remove the powder deposits from the walls and from the space inside the booth.
  • these solutions are effective, they have a negative impact on production times and costs and oblige the operator to work in an unhealthy environment.
  • cleaning of the powder delivery devices is an operation which is normally carried out manually.
  • booths of known type have the problem of the relatively long times required for management of the operations to clean and/or empty the powder delivery devices at each colour change operation.
  • the main aim of the present invention is to produce a paint booth, and in particular a paint booth for automated powder painting plants for products, which enables the above problems to be overcome.
  • an object of the present invention is to produce a paint booth which does not require, or in any case minimizes, cleaning operations carried out manually.
  • Another object of the present invention is to produce a paint booth in which the time for management of the operations to empty the powder delivery devices and change the colour is minimized.
  • Yet another object of the present invention is to produce a paint booth in which the paint dispensing devices are moved in an optimum way, in order to allow painting of parts even of considerable longitudinal dimensions, minimizing the times required for emptying and/or maintenance of these dispensing devices.
  • Last but not least object of the present invention is to produce a paint booth, and in particular a paint booth for automated painting plants for products which is highly reliable, relatively simple to produce and with competitive costs.
  • a paint booth for powder painting plants for products characterized in that it comprises: a supporting structure, a base surface, one or more walls that define a painting area, first dispensing means for dispensing powder paint facing into said painting area, said first dispensing means being operatively connected to first movement means and comprising a first plurality of guns aligned along a first vertical axis, said guns being spaced at a first distance when positioned in a first operating position and spaced at a second distance, less then said first distance, when positioned in a second rest/emptying/maintenance position.
  • the guns are grouped together at a distance which is lower than their operating distance and positioned in the second rest/emptying/maintenance position. This makes it possible to minimize operations carried out manually and avoid access to workstations for maintenance of the guns located at height.
  • said second rest/emptying/maintenance position is located in proximity of said base surface, and more preferably said second rest/emptying/maintenance position is located under said base surface.
  • the emptying/maintenance operations can be carried out in proximity of the base surface, according to methods better described below.
  • the paint booth comprises second dispensing means for dispensing powder paint facing into said painting area from substantially opposite position with respect to said first dispensing means, said second dispensing means being operatively connected to second movement means and comprising a second plurality of guns aligned along a second vertical axis, said guns being spaced at a first distance when positioned in a first operating position and spaced at a second distance, less then said first distance, when positioned in a second rest/emptying/maintenance position.
  • first and second means for dispensing the powder paint positioned substantially opposite each other, preferably along blocks which extend vertically, optimal painting of the parts is ensured without requiring more or less complicated systems for the movement thereof, such as systems based on rotating supporting hooks.
  • the guns can be individually actuated by the corresponding movement means.
  • first plurality of guns and/or the second plurality of guns can be collectively actuated by the corresponding first and/or second movement means.
  • said first and/or second movement means can comprise, for example, belt means or chain means connecting respectively said first plurality of guns and/or said second plurality of guns with first and/or second driving motors.
  • the first plurality of guns and/or said second plurality of guns can be respectively mounted on a first and/or second support translatory movable with respect to said supporting structure.
  • said first plurality of guns and/or said second plurality of guns can be respectively mounted on a first and/or second support pivotally movable with respect to said supporting structure.
  • said first dispensing means comprises a third plurality of guns aligned along a third vertical axis parallel to said first vertical axis.
  • the second dispensing means can comprise a fourth plurality of guns aligned along a fourth vertical axis parallel to said second vertical axis.
  • At least one said guns of said first plurality of guns is kept in a fixed position while the guns of said second and/or third and/or fourth plurality of guns are moved with alternated motion along said second and/or third and/or fourth vertical axis.
  • Such gun which is kept fixed during the painting operation is conveniently pivotally orientable in a vertical plane. In this way it is possible to dedicate one of the gun to the painting of a particular area of the products, normally not reachable with a horizontal straight orientation of the guns, by giving to said dedicated gun a particular orientation and keeping it fixed during painting,
  • the paint booth according to the invention 1, 2 and 3 comprises a supporting structure 10, for example constituted by a supporting framework.
  • the booth 1, 2, and 3 also comprises a base surface 20, and one or more walls 31, 32, 33 and 34 that define a painting area 50.
  • the walls 31, 32, 33 and 34 can totally enclose the painting area 50 or only o portion thereof.
  • the walls 31, 32, 33 and 34 comprises a plurality of sheets positioned on all perimetral walls of the painting booth.
  • the booth 1, 2, and 3 further comprises first dispensing means 51 for dispensing powder paint facing into said painting area 50, said first dispensing means 51 being operatively connected to first movement means 511 for actuating both the painting operation and the movement of the dispensing means 51 from a first operating position to a second rest/emptying/maintenance position.
  • the products 60 to be treated enter the space 50 inside the booth, normally hanging from an overhead conveyor, and are subjected for the entire length thereof to the painting operation through the dispensing means 51.
  • the positioning of the dispensing means, as well as the path of the products inside the paint booth can be adapted according to the needs.
  • said first dispensing means 51 comprises a first plurality of guns 510 aligned along a first vertical axis, said guns 510 being spaced at a first distance when positioned in a first operating position and spaced at a second distance, less then said first distance, when positioned in a second rest/emptying/maintenance position.
  • said first 511 movement means are adapted to move said first 51 dispensing means to a first operating position and to position said first dispensing means in a second rest/emptying/maintenance position differing from said first operating position.
  • said first 511 movement means are adapted to relatively move said guns 510 with respect to each other, so as to be spaced at a first distance when positioned in a first operating position and spaced at a second distance, less then said first distance, when positioned in said second rest/emptying/maintenance position.
  • the first movement means 51 1 allow the movement in vertical direction of the guns 510 (spaced at a first distance) along a predetermined operating path, for example the up and down movement of the bold arrow of figure 7a.
  • the guns 510 are withdrawn form the painting area (fig. 7b), grouped together and spaced at a second distance (fig. 7c) and then positioned in a second rest/emptying/maintenance position (fig. 7d).
  • said second rest/emptying/maintenance position is located in proximity of said base surface 20, and more preferably said second rest/emptying/maintenance position is located under said base surface 20, for instance in correspondence of a dedicated suction valve.
  • the paint booth 1, 2, and 3 preferably comprises second dispensing means 52 for dispensing powder paint facing into said painting area 50 from substantially opposite position with respect to said first dispensing means 51.
  • the said second dispensing means 52 are operatively connected to second movement means 521 and comprises a second plurality of guns 520 aligned along a second vertical axis.
  • the guns 520 are spaced at a first distance when positioned in a first operating position and spaced at a second distance, less then said first distance, when positioned in a second rest/emptying/maintenance position.
  • said first and second means for dispensing the powder paint 51, 52 are each constituted by a plurality of powder paint guns 510 and 520 arranged superimposed and aligned vertically, on at least one row per side.
  • said means for dispensing the powder paint 51, 52 face the inside of said booth from substantially opposite positions.
  • the characteristic that said means for dispensing the powder paint 51, 52 face the inside of said booth from substantially opposite positions should be intended to refer to a situation in which said dispenser means emit powders in opposite directions along two substantially parallel axes.
  • the emission of powder by the opposite dispensing means takes place along a same axis so that the jets of powder "collide" at the part to be painted.
  • the guns are arranged along one or more vertical blocks that extend for the whole height of the part to be painted and are spaced from one another and moved in such a manner as to cover at least a portion of the length of the part to be painted.
  • the movement means carry the guns in proximity of the base surface "lowering them” and superimposing them in proximity to one another. At this point it is possible to proceed, for example, with the operations to empty and clean them externally.
  • Said movement means can be activated by a single actuator, for example a motor, or can be provided with independent actuators, for each block or for each gun.
  • the guns are individually actuated by the corresponding movement means.
  • the guns can be collectively actuated by the corresponding movement means.
  • the first 511 and/or second 521 movement means can comprise belt means or chain means 550 connecting respectively said first plurality of guns 510 and/or said second plurality of guns 520 with first and/or second driving motors.
  • first plurality of guns 510 and/or said second plurality of guns 520 are respectively mounted on a first 71 and/or second 72 support translatory movable with respect to said supporting structure 10.
  • first and second movement means 511, 521 allow the movement in vertical direction of the guns 510, 520 (spaced at a first distance) along a predetermined operating path (for example the up and down movement of the bold arrow of figure 8a).
  • the guns 510 and 520, mounted on the supports 71 and 72 are withdrawn form the painting area (fig. 8b and dotted part of figure 10), grouped together and spaced at a second distance (fig. 8c) and then positioned in a second rest/emptying/maintenance position (fig. 8d).
  • the first plurality of guns 510 and/or said second plurality of guns 520 are respectively mounted on a first 81 and/or second 82 support pivotally movable with respect to said supporting structure 10.
  • the first and second movement means 511, 521 allow the movement in vertical direction of the guns 510, 520 (spaced at a first distance) along a predetermined operating path, as in figure 9.
  • the guns 510 and 520, mounted on the supports 81 and 82 are withdrawn form the painting area and grouped together at a second distance as shown in figure 11, and then positioned in a second rest/emptying/maintenance position with the guns below the base surface (position not shown).
  • a typical colour change operation can therefore be carried out by withdrawing the guns from the booth and lowering them in proximity of the base surface of the booth.
  • Emptying can be carried out in a specific suction collector or, preferably, in suction means arranged at the base surface, for example in suction means provided with openings controlled by means of suitable valves positioned under the base surface of the booth, by moving the guns forward into said valves. After emptying the guns are withdrawn from the valve, or in any case from the suction means, repositioned at height and moved forward in the booth.
  • said first dispensing means 51 comprises a third plurality of guns 530 aligned along a third vertical axis parallel to said first vertical axis.
  • said second dispensing means 52 can comprise a fourth plurality of guns 540 aligned along a fourth vertical axis parallel to said second vertical axis.
  • the guns of one block can be arranged aligned relative to the guns of the adjacent block, as shown in figure 4, or staggered relative thereto, as shown in figures 5 and 6.
  • a further horizontal translation movement of the guns of the two adjacent blocks can be provided, so that they are superimposed along a same vertical axis, to form a single block with double the number of guns relative to the original configuration.
  • the movement means are adapted to impart to said dispensing means a first movement of translation along a substantially vertical axis which is an up and down movement during operation (see double-headed arrows of figures 13a-13b) and to position the dispensing means in second rest/emptying/maintenance position (see figure 13 c).
  • At least one said guns 91 of said first plurality of guns 510 can be kept in a fixed position while the guns of said second 520 and/or third 530 and/or fourth 540 plurality of guns are moved with alternated motion along said second and/or third and/or fourth vertical axis.
  • the gun 91 which is kept fixed during the painting operation is conveniently pivotally orientable in a vertical plane. In this way it is possible to dedicate one of the gun to the painting of a particular area of the products, normally not reacheable with a horizontal straight orientation of the guns, by giving to said dedicated gun a particular orientation and keeping it fixed during painting.
  • the remaining guns 910 belonging to the same vertical row are conveniently kept inactive and parked, for instance, in proximity of said base surface 20.
  • the booth according to the invention allows all maintenance, emptying and colour change operations to be carried out in proximity of the base surface. This enables a reduction in the mechanical complexity of the booth and a decrease in the installation and maintenance costs of the booth itself and of the plant associated therewith.
  • the booth according to the present invention may advantageously be used in painting plants for products.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Spray Control Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

L'invention concerne une cabine de peinture (1,2,3) destinée à des installations de peinture à la poudre pour des produits caractérisée en ce qu'elle comprend : une structure de support (10), une surface de base (20), une ou plusieurs parois (31,34) qui délimitent une zone de peinture (50), un premier moyen de distribution (51) pour distribuer la peinture à la poudre faisant face dans ladite zone de peinture (50), ledit premier moyen de distribution (51) étant connecté de façon opérationnelle à un premier moyen de mouvement (511) et comprenant une première pluralité de pistolets (510) alignés le long d'un premier axe vertical, lesdits pistolets (510) étant espacés à une première distance lorsqu'ils sont positionnés dans une première position de fonctionnement et espacés à une seconde distance, inférieure à ladite première distance, lorsqu'ils sont positionnés dans une seconde position de repos/vidage/maintenance.
EP11810849.7A 2010-12-28 2011-12-28 Cabine de peinture destinée à des installations de peinture pour des produits Withdrawn EP2658660A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBG2010A000068A IT1403188B1 (it) 2010-12-28 2010-12-28 Cabina di verniciatura per impianti di verniciatura di manufatti.
PCT/EP2011/074197 WO2012089789A1 (fr) 2010-12-28 2011-12-28 Cabine de peinture destinée à des installations de peinture pour des produits

Publications (1)

Publication Number Publication Date
EP2658660A1 true EP2658660A1 (fr) 2013-11-06

Family

ID=43736744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11810849.7A Withdrawn EP2658660A1 (fr) 2010-12-28 2011-12-28 Cabine de peinture destinée à des installations de peinture pour des produits

Country Status (3)

Country Link
EP (1) EP2658660A1 (fr)
IT (1) IT1403188B1 (fr)
WO (2) WO2012089789A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN118080240A (zh) * 2024-04-28 2024-05-28 徐州冠华机械制造有限公司 一种配重块加工用喷漆装置

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CN103990572B (zh) * 2014-05-13 2017-01-04 裕东（中山）机械工程有限公司 一种用于喷枪外部清理的底部隐蔽式清理仓
ITUB20151964A1 (it) * 2015-07-03 2017-01-03 Euroimpianti S R L Cabina per la verniciatura a polveri
IT201900009714A1 (it) * 2019-06-21 2020-12-21 Cefla Soc Cooperativa Apparato per la applicazione di vernici su manufatti a prevalente estensione piana
CN113663846B (zh) * 2021-10-08 2022-08-23 安徽柳溪智能装备有限公司 液体涂装生产线
CN114178113B (zh) * 2021-12-20 2023-04-07 中建新疆建工（集团）有限公司 一种钢结构用装饰涂料喷涂装置及喷涂方法

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Publication number Priority date Publication date Assignee Title
CN118080240A (zh) * 2024-04-28 2024-05-28 徐州冠华机械制造有限公司 一种配重块加工用喷漆装置

Also Published As

Publication number Publication date
WO2012089787A1 (fr) 2012-07-05
WO2012089789A1 (fr) 2012-07-05
IT1403188B1 (it) 2013-10-15
ITBG20100068A1 (it) 2012-06-29

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