WO2021124178A1 - Cabine de peinture avec système manuel de changement de filtre - Google Patents

Cabine de peinture avec système manuel de changement de filtre Download PDF

Info

Publication number
WO2021124178A1
WO2021124178A1 PCT/IB2020/062082 IB2020062082W WO2021124178A1 WO 2021124178 A1 WO2021124178 A1 WO 2021124178A1 IB 2020062082 W IB2020062082 W IB 2020062082W WO 2021124178 A1 WO2021124178 A1 WO 2021124178A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
filter module
front opening
booth
filters
Prior art date
Application number
PCT/IB2020/062082
Other languages
English (en)
Inventor
Paolo COLOMBAROLI
Roberto GORLA
Original Assignee
Geico 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 Geico Spa filed Critical Geico Spa
Priority to EP20824691.8A priority Critical patent/EP4076767A1/fr
Publication of WO2021124178A1 publication Critical patent/WO2021124178A1/fr

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
    • 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
    • B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
    • 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 a painting booth provided with a system for changing the filters for eliminating the overspray.
  • the painting booths are provided with an air flow which passes through the working zone so as to convey the overspray, namely the atomized excess paint, outside of the booth.
  • the air drawn in with the overspray must be necessarily purified of the paint before it can be released into the environment or reintroduced into the booth and for this reason the air flow is made to pass through suitable filtering systems.
  • the general object of the present invention is to provide a booth with a filtering system having means for facilitating replacement of the overspray elimination filters.
  • a painting booth comprising a painting chamber inside which the paint is sprayed and which is provided with an air flow for evacuation of the overspray, which is sent to at least one filtering unit of the booth for filtering and separating the paint overspray from the air flow
  • the filtering unit comprising a plurality of filter modules, each filter module being removably contained in its own housing which comprises a front opening which can be opened in order to extract the filter module from the housing
  • the booth being characterized in that each filter module is formed by a support frame and by a plurality of filters arranged side-by-side inside the support frame, the support frame being suspended below a carriage which slides on a pair of upper parallel rails which are arranged between the interior of the housing of the filter module and an external area in front of the front opening of the housing, the support frame being suspended from the carriage by means of a rotary connection so as to be rotatable about a vertical axis in order to allow extraction of
  • FIG. 1 shows a partially cross-sectioned, schematic, front elevation view of a booth according to the invention
  • FIG. 2 shows a schematic, cross-sectioned, plan view of the booth along the fine II-II of Figure 1;
  • FIG. 3 shows a schematic, partial and enlarged, perspective view of a zone of the booth according to Figure 1 during a first stage of a filter-changing operation
  • Figure 4 shows a view similar to that of Figure 2 during a second stage of the filter-changing operation
  • Figure 1 shows, denoted generally by 10, a painting booth provided according to the invention.
  • the booth comprises a chamber 11 for painting objects 12 (for example motor vehicle bodies).
  • objects 12 for example motor vehicle bodies.
  • the objects to be sprayed are advantageously transported into the chamber 11 by means of a known sequential conveyor system 13.
  • the chamber 11 is provided with known paint-spraying devices (not shown) which spray, upon command, the paint onto the surfaces of the object to be painted.
  • the paint-spraying devices may be realized in the form of known robotic arms provided with spray guns.
  • the booth has a circulating air flow for evacuating the overspray from the chamber 11.
  • suitable air circulation fans (not shown) are advantageously provided according to a technique known per se for producing a continuous flow of air through the chamber.
  • the floor of the chamber is formed as a grille so that the air with the overspray flows out through the floor.
  • the ceiling of the chamber is therefore provided with corresponding air inlets 15 so as to have a continuous air flow which passes vertically through the chamber from the top downwards during the paint- spraying operations.
  • the air flow leaving the chamber 11 is conveyed to at least one filtering unit 16 which retains the overspray.
  • the filtering unit comprises a plurality of filter modules 17, each accommodated inside a corresponding housing 18 which forms the seat for the filter module 17 and which connects it between the inlet for the air from the chamber and 11 an outlet for discharging the air after filtering.
  • Each housing 18 comprises a front opening 19 which can be opened for extraction of the corresponding filter module 17 from the housing 18.
  • a suitable sealed door 28 with manual opening system or other suitable closing system may be provided on the front opening 19.
  • the door is shown in broken lines and may be of any suitable type, for example hinged, sliding, with double doors, etc.
  • the housings 18 of a filtering unit 16 are arranged side-by-side with the front openings 19 which face out on a same side.
  • the filtering units are advantageously two in number, being for example arranged facing each other in a mirror arrangement relative to a vertical mid-plane of the booth so as to have front openings 19 opposite each other.
  • this vertical mid-plane is parallel to the direction of movement of the transportation system 13 which defines the direction of longitudinal extension of the booth.
  • the filtering unit or units 16 are preferably arranged directly underneath the floor 14.
  • each housing 18 may have an inlet 25 which is situated opposite to the said front opening and is connected to the booth so that the air which arrives from the booth enters into the filter modules 17 through this inlet 25 and crosses them so as to be purified of the overspray.
  • Movable inlet partitions 32 may also be provided for closing the inlet 25 when the filter module is extracted from the housing through the front opening of the corresponding housing.
  • the rail sections 23 inside the housings occupied by the filter modules have been removed from the drawing.
  • the filter module 17 has advantageously a rear face 33 for entry of the air into the filters which is situated opposite to the front opening 19. This rear face 33 rests in a sealed manner against the corresponding inlet 25 of the housing when the filter is in an operative filtering position inside its housing so that the air to be filtered passes directly through the filter module.
  • the inlets 25 of the housings preferably all face out into the same passage 21 which is connected to the painting chamber via the grilled floor of the painting chamber.
  • the filter module has the air outlet on its front face 34 which is situated on the side where the front opening 19 is located.
  • the outlet for the air from each housing 18 may be connected (preferably via one or more further filters 26, for example of the "pocket” type) to a duct 27 for evacuating the air from the booth.
  • the duct 27 may definitively evacuate the air externally and/or convey it back into the chamber 11 for recycling of purified air.
  • the outlet 24 for the air downstream of the filter module in the housing may also be provided with movable outlet partitions 37 for closing the outlet 25 when the filter module is extracted from the housing through the front opening.
  • each filter module 17 is formed by a support frame 20 and by a plurality of filters 17a (some of which are schematically shown in broken lines) arranged alongside each other inside the support frame and with air inlet and outlet arranged to coincide with the air inlet and outlet of the filter module which form them.
  • the frame 20 may have upper and lateral walls which are closed and front and rear faces which are open.
  • the box filters 17a may be for example arranged side-by-side in rows and columns.
  • the filters 17a may be of various suitable types, for example also of the disposable cardboard type.
  • each filter module 17 is suspended below a carriage 22 which slides on a pair of parallel upper rails 23 which are arranged between the inside of the housing 18 and an external area in front of the front opening 19 of the housing.
  • the rails may be of various types and the carriage will be made accordingly.
  • the two rails may be made with a rollerway along which the carriage travels (for example provided with sliders) or the carriage may have travel wheels and the rail may be made with a profiled form having a travel surface for said wheels, etc.
  • each filter module may be extracted in a linear manner from its housing through the front opening 19, by causing it to slide along the rails until it is brought into the area in front of the front opening, as schematically shown in Figure 3.
  • the carriage has a front plate 35 designed to close the space for its passage through the opening 19 when it is inside the housing 18 with the module in the operative position, connected to the circulating air flow.
  • the support frame 20 is suspended from the carriage 22 by means of a rotary connection 30 which is rotatable (for example by means of a swivel ring system) about a vertical axis 31 so as to allow the extraction of the filter module from the housing by means of sliding of the carriage along the pair of rails and rotation of the filter module about said vertical axis in the said area in front of the front opening of the housing so as to allow the extraction of the filters from the plurality in the frame.
  • a rotary connection 30 which is rotatable (for example by means of a swivel ring system) about a vertical axis 31 so as to allow the extraction of the filter module from the housing by means of sliding of the carriage along the pair of rails and rotation of the filter module about said vertical axis in the said area in front of the front opening of the housing so as to allow the extraction of the filters from the plurality in the frame.
  • the direction of extraction of the filters from the frame may be opposite to the direction of throughflow of the air in them, so that the air flow which usually crosses them tends to push them inside the frame.
  • the rotation of the filtering unit about the vertical axis allows the rear face of the filtering unit to be made visible for extraction and replacement of the filters.
  • the rotation may also be through 180° so as to bring the rear face of filter unit completely opposite the housing 18.
  • the free space in front of the front openings 19 may be kept limited to that strictly necessary for extraction of the filtering unit and rotating it through at least 90°, such that the filters may be extracted in a direction substantially parallel to the extension of the front openings.
  • the movement system according to the invention is simple, strong and low-cost.
  • a booth according to the invention it is possible to replace the filters cyclically in an easy and rapid manner without even having to stop the plant. Since the air flow is divided up through the plurality of filter modules, closing of the circulating air inside a module for replacement of the filters which form it does not reduce excessively the air flow for the time period needed for the whole operation. Owing to the extraction and rotation system the operator is able to perform the changing operations more easily and with less effort. Moreover, the space around the booth may be keep small. An operator is able to gain access with clean filters to a front opening of a housing inside which it is required to change one or more filters, extract and rotate the filter module with little force, rapidly change the filters and reposition the module inside the housing.
  • the number of housings and/or the number of filters may vary from that shown depending on the specific requirements, such as the air throughflow to be purified.
  • the rotation about the vertical axis 31 may be angularly increased or reduced depending on the requirements and preferences.
  • the rotation may also be through 360° if desired, for example in order to extract the filters after a first rotation through 90°, perform a further rotation through 180° in order to then insert the new filters in an opposite direction and finally rotate the module through a further 90° in order to bring it back into the initial position and insert it again inside the housing.
  • a first operator may extract the modules from one side of the gangway and a second operator may insert the new filters from the other side of the gangway with respect to the front opening of the housing.
  • the filter module may also be disengaged from the carriage for removal and replacement and/or cleaning.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

L'invention concerne une cabine de peinture (10) comprenant une chambre de peinture (11) à l'intérieur de laquelle la peinture est pulvérisée et qui est pourvue d'un flux d'air destiné à évacuer l'excès de pulvérisation, qui est transporté vers au moins une unité de filtration (16) de la cabine, destinée à filtrer et à séparer l'excès de pulvérisation de peinture du flux d'air. L'unité de filtration (16) comprend une pluralité de modules de filtre (17), chaque module de filtre (17) étant contenu de manière amovible dans son propre boîtier (18) qui comprend une ouverture avant (19) qui peut être ouverte afin d'extraire le module de filtre du boîtier. Chaque module de filtre (17) est formé par un cadre de support (20) et par une pluralité de filtres (17a) disposés côte à côte à l'intérieur du cadre de support, le cadre de support (20) étant suspendu sous un chariot (22) qui coulisse sur une paire de rails parallèles supérieurs (23) qui sont disposés entre l'intérieur du boîtier (18) du module de filtre et une zone devant l'ouverture avant (19) du boîtier. Le cadre de support (20) est suspendu au chariot (22) au moyen d'une liaison rotative (30) de manière à pouvoir tourner autour d'un axe vertical (31) et permettre l'extraction du module de filtre (17) à partir du boîtier par coulissement du chariot (22) le long de la paire de rails et la rotation du module de filtre (17) autour dudit axe vertical (31) dans ladite zone devant l'ouverture avant (19) du boîtier et permettre ainsi l'extraction de filtres de la pluralité dans le cadre de support (20).
PCT/IB2020/062082 2019-12-20 2020-12-17 Cabine de peinture avec système manuel de changement de filtre WO2021124178A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20824691.8A EP4076767A1 (fr) 2019-12-20 2020-12-17 Cabine de peinture avec système manuel de changement de filtre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000025015 2019-12-20
IT102019000025015A IT201900025015A1 (it) 2019-12-20 2019-12-20 Cabina di verniciatura con sistema di cambio filtri manuale

Publications (1)

Publication Number Publication Date
WO2021124178A1 true WO2021124178A1 (fr) 2021-06-24

Family

ID=70228521

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/062082 WO2021124178A1 (fr) 2019-12-20 2020-12-17 Cabine de peinture avec système manuel de changement de filtre

Country Status (4)

Country Link
EP (1) EP4076767A1 (fr)
AR (1) AR120724A1 (fr)
IT (1) IT201900025015A1 (fr)
WO (1) WO2021124178A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017037644A1 (fr) * 2015-09-01 2017-03-09 Geico Spa Cabine de peinture pourvue d'un système de filtre de changement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017037644A1 (fr) * 2015-09-01 2017-03-09 Geico Spa Cabine de peinture pourvue d'un système de filtre de changement

Also Published As

Publication number Publication date
EP4076767A1 (fr) 2022-10-26
AR120724A1 (es) 2022-03-09
IT201900025015A1 (it) 2021-06-20

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