EP2090374A1 - Machine for painting or colouring products with large surfaces - Google Patents
Machine for painting or colouring products with large surfaces Download PDFInfo
- Publication number
- EP2090374A1 EP2090374A1 EP09150417A EP09150417A EP2090374A1 EP 2090374 A1 EP2090374 A1 EP 2090374A1 EP 09150417 A EP09150417 A EP 09150417A EP 09150417 A EP09150417 A EP 09150417A EP 2090374 A1 EP2090374 A1 EP 2090374A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine
- airbrush
- spray gun
- spray
- painted
- 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- Withdrawn
Links
Images
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
- B05B13/04—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
-
- 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
- B05B16/95—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 the objects or other work to be sprayed lying on, or being held above the conveying means, i.e. not hanging from the conveying means
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B17/00—Details of apparatus or machines for manufacturing or treating skins, hides, leather, or furs
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C15/00—Apparatus for chemical treatment or washing of hides, skins, or leather
Definitions
- the present finding concerns a machine for painting or colouring products with large surfaces, through the use of airbrushes or spray guns, arranged above the products to be painted, according to the general part of claim 1.
- the painting of continuous or discontinuous products consists of covering the surface with one or more layers of covering or colouring material, in greater or smaller amounts according to the degree of covering that one wishes to obtain: large amounts with covering products or small amounts with transparent products.
- the main tool to carry out painting is so-called "spray painting", in which the product is arranged on a means of transport, which can consist of a conveyor belt (protected or washed at the end of painting), or else wires arranged a certain distance apart and the spraying action of the surface takes place through the use of airbrushes or spray guns that move above the product with a movement that may be rotary, elliptical or alternate transversal, with respect to the advancing direction thereof.
- Rotary spraying where the airbrushes are arranged on a turntable, has the drawback that on the two sides of the product to be painted there is a substantial difference in covering.
- This system does, however, have the drawback of expensive mechanics and substantial bulk, due to the fact that the two wheels must have a large diameter, to avoid interference between the two spray cones generated by the two airbrushes or the two spray guns, which run on two arms of the chain.
- An alternative embodiment of elliptical spraying that reduces bulk is the one that foresees using three transmission wheels with smaller diameter, two of which are arranged on one side of the product to be painted and the other on the opposite side.
- the airbrushes or spray guns describe a triangular trajectory.
- transversal spraying a single arm is used on which from two to six airbrushes or spray guns are mounted, fixedly connected to one another.
- two arms are used, which work in opposition and on which up to four airbrushes or spray guns are mounted for each arm.
- the movement of the two arms takes place through a single control and both translate with the same speed, determined uniquely by the useful width, by the advancing speed of the product to be painted and by the distance between the two arms, to make uniform spraying on the entire surface.
- the purpose of the present finding is to make a spraying machine of the type that has transversal movement of the airbrushes or spray guns, which is more effective, more flexible and more productive than known machines.
- each airbrush or spray gun is equipped with independent movement with respect to one another and where the motion of each airbrush or each spray gun can be either uniform or varied, within the working range; this makes it possible to vary the distance between the spraying trajectories or "strips".
- the skin "P” advances on a conveyor belt “T” to be subjected to the painting action of its surface through airbrushes or spray guns, indicated with reference letter “K", which run alternately and perpendicularly with respect to the advancing dimension of the conveyor belt and that deposit strips of paint onto the surface itself of a width equal to the diameter of the spray cone and that are, through the effect of the combination of the two perpendicular motions, slightly inclined, forming two strips shaped like a "V" for each cycle (outward and return stroke of the airbrush or spray gun).
- Said airbrushes or spray guns are arranged above the products to be painted.
- each airbrush or spray gun K is mounted on a structure 1, which is independent from the structures that support the other airbrushes or spray guns; said structure consists of a vertical shaft 2, equipped with a trolley 3, which runs on a rectilinear guide bar 4, which crosses the conveyor belt T perpendicularly.
- the trolley 3 is controlled in its "back and forth” movement by a corresponding motor member 5 thereof, applied to the end of said bar.
- each airbrush or spray gun in its transversal movement, makes a painted strip on the skin, of a width equal to the diameter of the spray cone, which is positioned independently with respect to the painted strip made by the spray gun immediately after.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nozzles (AREA)
Abstract
The finding concerns a machine for painting or colouring products (P) with large surfaces, through the use of airbrushes or spray guns (K), arranged above the products (P) to be painted. Such products (P) are equipped with means (T) that make them advance along a predetermined direction. Moreover, at least four of said airbrushes or spray guns (K) are foreseen and they are equipped with alternate rectilinear movement means (1,2,3,4) perpendicular to the advancing direction of the products (P) to be painted. Such a machine is characterised in that each airbrush or spray gun (K) is equipped with independent movement means (1,2,3,4) with respect to one another.
Description
- The present finding concerns a machine for painting or colouring products with large surfaces, through the use of airbrushes or spray guns, arranged above the products to be painted, according to the general part of
claim 1. - The painting of continuous or discontinuous products consists of covering the surface with one or more layers of covering or colouring material, in greater or smaller amounts according to the degree of covering that one wishes to obtain: large amounts with covering products or small amounts with transparent products. The main tool to carry out painting is so-called "spray painting", in which the product is arranged on a means of transport, which can consist of a conveyor belt (protected or washed at the end of painting), or else wires arranged a certain distance apart and the spraying action of the surface takes place through the use of airbrushes or spray guns that move above the product with a movement that may be rotary, elliptical or alternate transversal, with respect to the advancing direction thereof.
- Each of the aforementioned three spray systems has operative drawbacks, which greatly limit their use.
- Rotary spraying, where the airbrushes are arranged on a turntable, has the drawback that on the two sides of the product to be painted there is a substantial difference in covering.
- This drawback is overcome with continuous elliptical spraying, in which the airbrushes or spray guns are mounted on a chain that runs between two transmission wheels.
- This system does, however, have the drawback of expensive mechanics and substantial bulk, due to the fact that the two wheels must have a large diameter, to avoid interference between the two spray cones generated by the two airbrushes or the two spray guns, which run on two arms of the chain.
- An alternative embodiment of elliptical spraying that reduces bulk is the one that foresees using three transmission wheels with smaller diameter, two of which are arranged on one side of the product to be painted and the other on the opposite side.
- In this way, the airbrushes or spray guns describe a triangular trajectory.
- This way of operating does, however, have the drawback that on the two sides of the painted surface the overlapping of the spray cones takes place at different times: on the side with one wheel the overlapping times are shorter compared to the side with the single wheel, for which reason a disuniformity of absorption and drying of the sprayed product is generated.
- In transversal spraying a single arm is used on which from two to six airbrushes or spray guns are mounted, fixedly connected to one another.
- With such an embodiment, by varying the transportation speed of the product to be painted it is also necessary to proportionally vary the translation speed of the airbrushes or spray guns, to always ensure a uniform and homogeneous covering.
- In practice, up to a useful spraying width of 2.4 m it is possible to maintain translation speeds of the spray guns that do not involve an alteration of the spray cone; higher translation speed have the consequence of a greater dispersion of the product, known as "over spray".
- Alternatively, for useful widths above 3.4-3.6 m, two arms are used, which work in opposition and on which up to four airbrushes or spray guns are mounted for each arm.
- In the current state of the art, the movement of the two arms takes place through a single control and both translate with the same speed, determined uniquely by the useful width, by the advancing speed of the product to be painted and by the distance between the two arms, to make uniform spraying on the entire surface.
- With this way of operating, since the airbrushes or spray guns move at a single well-defined speed, it is not however possible to make so-called "design effects" on the painted surface.
- The purpose of the present finding is to make a spraying machine of the type that has transversal movement of the airbrushes or spray guns, which is more effective, more flexible and more productive than known machines.
- Such a purpose is accomplished with a spray machine in which each airbrush or spray gun is equipped with independent movement with respect to one another and where the motion of each airbrush or each spray gun can be either uniform or varied, within the working range; this makes it possible to vary the distance between the spraying trajectories or "strips".
- The finding shall be better understood from the description of a possible embodiment thereof, given as a non-limiting example, with the help of the attached tables of drawings, where:
-
Fig. 1 (table I) represents a schematic front elevation view of the cabin present in the machine according to the finding; -
Fig. 2 (table II) represents a schematic side elevation of the above; -
Fig. 3 (table III) represents a schematic plan view of the cabin itself. - As can be seen in the figures, in the spraying cabin the skin "P" advances on a conveyor belt "T" to be subjected to the painting action of its surface through airbrushes or spray guns, indicated with reference letter "K", which run alternately and perpendicularly with respect to the advancing dimension of the conveyor belt and that deposit strips of paint onto the surface itself of a width equal to the diameter of the spray cone and that are, through the effect of the combination of the two perpendicular motions, slightly inclined, forming two strips shaped like a "V" for each cycle (outward and return stroke of the airbrush or spray gun). Said airbrushes or spray guns are arranged above the products to be painted.
- Constructively, each airbrush or spray gun K is mounted on a
structure 1, which is independent from the structures that support the other airbrushes or spray guns; said structure consists of avertical shaft 2, equipped with atrolley 3, which runs on a rectilinear guide bar 4, which crosses the conveyor belt T perpendicularly. Thetrolley 3 is controlled in its "back and forth" movement by acorresponding motor member 5 thereof, applied to the end of said bar. - Operatively, each airbrush or spray gun, in its transversal movement, makes a painted strip on the skin, of a width equal to the diameter of the spray cone, which is positioned independently with respect to the painted strip made by the spray gun immediately after.
- In practice, it is possible to adjust the starting time of each individual spray gun, anticipating the starting of one spray gun with respect to the starting of the spray gun immediately after and it is possible for the spray cones to not operate longitudinally aligned, but rather staggered apart with respect to the next one; it is also possible to make painted strips that can partially overlap with one another.
Claims (12)
- MACHINE FOR PAINTING OR COLOURING PRODUCTS WITH LARGE SURFACES, through the use of airbrushes or spray guns (K), arranged above the products to be painted, said products being equipped with means that make them advance along a predetermined direction, at least four of said airbrushes or spray guns being foreseen and being equipped with alternate rectilinear movement perpendicular to the advancing action of the products to be painted, said machine being characterised in that each airbrush or spray gun is equipped with independent movement with respect to one another.
- MACHINE, according to claim 1, characterised in that the products are positioned on a wire conveyor belt, a continuous conveyor belt or a roller conveyor belt.
- MACHINE, according to claim 1 or 2, characterised in that the speed of each airbrush or of each spray gun stays uniform for the entire working width, with different speed values with respect to one another.
- MACHINE, according to claim 1 or 2, characterised in that each airbrush or spray gun runs with variable speeds within the working width, independently from each other.
- MACHINE, according to claim 1 or 2, characterised in that the speed of each airbrush or of each spray gun is uniform and equal for all of the airbrushes or all of the spray guns.
- MACHINE, according to claim 1 or 2, characterised in that the acceleration of each airbrush or spray gun (K) can be varied independently from each other.
- MACHINE, according to claim 1 or 2, characterised in that each airbrush or spray gun (K) can be mounted on a structure (1) that is independent from the other structures that support the other airbrushes or spray guns.
- MACHINE, according to claim 5, characterised in that the support structure (1) of the airbrush or spray gun (K) consists of a vertical shaft (2), equipped with a trolley (3) that runs on a rectilinear guide bar (4), which crosses the conveyor belt (T) perpendicularly, the trolley being controlled in its "back and forth" movement by a corresponding motor member thereof (5), applied to the end of said bar.
- MACHINE, according to one or more of the previous claims, characterised in that each airbrush or spray gun, in its transversal movement, makes a painted strip on the surface of the product to be painted, of a width equal to the diameter of the spray cone, which is positioned independently with respect to the painted strip made by the airbrush or spray gun immediately before or after.
- MACHINE, according to one or more of the previous claims, characterised in that the starting of each individual airbrush or each individual spray gun is adjustable by anticipating the starting of one airbrush or spray gun with respect to the starting of the airbrush or spray gun immediately before and after.
- MACHINE, according to one or more of the previous claims, characterised in that the spray cones, in operative step, do not operate longitudinally aligned, but rather staggered one with respect to the next.
- MACHINE, according to one or more of the previous claims, characterised in that it makes painted strips that overlap one another for half of their width.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000040A ITVI20080040A1 (en) | 2008-02-14 | 2008-02-14 | MACHINE FOR PAINTING OR COLORING PRODUCTS WITH EXTENDED SURFACES |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2090374A1 true EP2090374A1 (en) | 2009-08-19 |
Family
ID=40292109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09150417A Withdrawn EP2090374A1 (en) | 2008-02-14 | 2009-01-13 | Machine for painting or colouring products with large surfaces |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2090374A1 (en) |
IT (1) | ITVI20080040A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20120077A1 (en) * | 2012-02-20 | 2013-08-21 | Cefla Coop | METHOD AND EQUIPMENT FOR PAINT FINISH OF PREVALENT EXTENSION OF FLAT PAINT |
ITUB20160576A1 (en) * | 2016-02-09 | 2017-08-09 | Maema S R L Unipersonale | MACHINE FOR SPRAYING PAINTS OR DUST ON THE SURFACES OF MANUFACTURES |
ITUA20163013A1 (en) * | 2016-04-29 | 2017-10-29 | Air Power Group S P A | MULTI-AXIS APPLICATOR DEVICE OF DECORATION PRODUCTS ON CERAMIC ARTICLES AND METHOD OF APPLICATION OF SUCH PRODUCTS |
IT201700057435A1 (en) * | 2017-05-26 | 2018-11-26 | Ge Ma Ta Spa | MACHINE FOR THE PAINTING OF EXTENDED SURFACE ITEMS, SKIN TYPE AND THE LIKE |
WO2019186402A1 (en) * | 2018-03-28 | 2019-10-03 | Biemme Elettrica Di Bertola Massimo | Device for coating, in particular painting, the main surfaces of rigid panels with liquid products |
IT201800005013A1 (en) * | 2018-05-02 | 2019-11-02 | EQUIPMENT FOR THE APPLICATION OF DECORATION PRODUCTS ON CERAMIC ARTICLES | |
CN110560302A (en) * | 2019-09-30 | 2019-12-13 | 日照山海天旅游度假区金晨涂装设备有限公司 | Uniform spraying device for track of planar reciprocating engine and method for improving spraying uniformity |
CN112808485A (en) * | 2021-02-04 | 2021-05-18 | 广东龙丰精密铜管有限公司 | Copper pipe flaw detection ink-jet double-spray gun device and control system thereof |
IT202000019747A1 (en) * | 2020-08-07 | 2022-02-07 | I Tech S R L | “PROCEDURE AND PLANT FOR PROCESSING LEATHER |
WO2022214615A1 (en) * | 2021-04-07 | 2022-10-13 | Timeless Guardians | Printer using ash |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588125A (en) * | 1949-12-08 | 1952-03-04 | Boston Woven Hose & Rubber Co | Method of uniformly spray coating |
US5662968A (en) * | 1995-07-24 | 1997-09-02 | Nichiha Corporation | Method of painting building board by spray painting apparatus |
JP2003135998A (en) * | 2001-10-31 | 2003-05-13 | Kansai Paint Co Ltd | Equipment and method for multicolor pattern coating |
US20030234272A1 (en) * | 2002-06-21 | 2003-12-25 | Christian Lamothe | Fluxing apparatus for applying powdered flux |
-
2008
- 2008-02-14 IT IT000040A patent/ITVI20080040A1/en unknown
-
2009
- 2009-01-13 EP EP09150417A patent/EP2090374A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588125A (en) * | 1949-12-08 | 1952-03-04 | Boston Woven Hose & Rubber Co | Method of uniformly spray coating |
US5662968A (en) * | 1995-07-24 | 1997-09-02 | Nichiha Corporation | Method of painting building board by spray painting apparatus |
JP2003135998A (en) * | 2001-10-31 | 2003-05-13 | Kansai Paint Co Ltd | Equipment and method for multicolor pattern coating |
US20030234272A1 (en) * | 2002-06-21 | 2003-12-25 | Christian Lamothe | Fluxing apparatus for applying powdered flux |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20120077A1 (en) * | 2012-02-20 | 2013-08-21 | Cefla Coop | METHOD AND EQUIPMENT FOR PAINT FINISH OF PREVALENT EXTENSION OF FLAT PAINT |
ITUB20160576A1 (en) * | 2016-02-09 | 2017-08-09 | Maema S R L Unipersonale | MACHINE FOR SPRAYING PAINTS OR DUST ON THE SURFACES OF MANUFACTURES |
EP3205406A1 (en) * | 2016-02-09 | 2017-08-16 | Maema S.R.L. Unipersonale | Machine for spraying paints or powders onto surfaces of items |
ITUA20163013A1 (en) * | 2016-04-29 | 2017-10-29 | Air Power Group S P A | MULTI-AXIS APPLICATOR DEVICE OF DECORATION PRODUCTS ON CERAMIC ARTICLES AND METHOD OF APPLICATION OF SUCH PRODUCTS |
EP3238900A1 (en) * | 2016-04-29 | 2017-11-01 | Air Power Group S.p.A. | Multiaxial applicator device for application of decorating products on ceramic objects, and method for applying said products |
IT201700057435A1 (en) * | 2017-05-26 | 2018-11-26 | Ge Ma Ta Spa | MACHINE FOR THE PAINTING OF EXTENDED SURFACE ITEMS, SKIN TYPE AND THE LIKE |
CN111989164B (en) * | 2018-03-28 | 2022-02-25 | 马西莫·伯托拉的电动比姆公司 | Device for coating, in particular painting, a major surface of a rigid panel with a liquid product |
CN111989164A (en) * | 2018-03-28 | 2020-11-24 | 马西莫·伯托拉的电动比姆公司 | Device for coating, in particular painting, a major surface of a rigid panel with a liquid product |
WO2019186402A1 (en) * | 2018-03-28 | 2019-10-03 | Biemme Elettrica Di Bertola Massimo | Device for coating, in particular painting, the main surfaces of rigid panels with liquid products |
US11660632B2 (en) | 2018-03-28 | 2023-05-30 | Ecosys S.R.L. | Device for coating, in particular painting, the main surfaces of rigid panels with liquid products |
IT201800005013A1 (en) * | 2018-05-02 | 2019-11-02 | EQUIPMENT FOR THE APPLICATION OF DECORATION PRODUCTS ON CERAMIC ARTICLES | |
CN110560302A (en) * | 2019-09-30 | 2019-12-13 | 日照山海天旅游度假区金晨涂装设备有限公司 | Uniform spraying device for track of planar reciprocating engine and method for improving spraying uniformity |
IT202000019747A1 (en) * | 2020-08-07 | 2022-02-07 | I Tech S R L | “PROCEDURE AND PLANT FOR PROCESSING LEATHER |
CN112808485A (en) * | 2021-02-04 | 2021-05-18 | 广东龙丰精密铜管有限公司 | Copper pipe flaw detection ink-jet double-spray gun device and control system thereof |
WO2022214615A1 (en) * | 2021-04-07 | 2022-10-13 | Timeless Guardians | Printer using ash |
FR3121630A1 (en) * | 2021-04-07 | 2022-10-14 | Patrick Smets | PRINTER FROM ASHES |
Also Published As
Publication number | Publication date |
---|---|
ITVI20080040A1 (en) | 2009-08-15 |
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