SI9420084A

SI9420084A - Paint coating device

Info

Publication number: SI9420084A
Application number: SI9420084A
Authority: SI
Inventors: Guenter Dietrich
Original assignee: Guenter Dietrich
Priority date: 1994-10-31
Filing date: 1994-10-31
Publication date: 1997-12-31
Also published as: DE59409114D1; EP0793536B1; ATE189134T1; SK53797A3; PL175203B1; PL319947A1; HUT78110A; WO1996013336A1; EP0793536A1

Abstract

A device is disclosed for applying a coat of paint on profiled bars (5), in particular made of plastics, used in windows. In a paint-spraying installation, two masks (14) co-operate with the profiled bars (5) that are to be partially coated.

Description

Stanje tehnikeThe state of the art

Izum izhaja iz priprave za nanos barve na gradbeni les po preambuli glavnega patentnega zahtevka. Pri znani tovrstni pripravi gre za pretočni brizgalni avtomat, s katerim se da barvo nanesti na različne profile iz gradbenega lesa različnih dolžin. Pogosto se z brizganjem barve ne nanese na vse ploskve gradbenega lesa, npr. le zunajležeče ploskve, ki so vidne. Ostale ploskve, ki se jih ne barva, se mora zaščititi pred barvo meglo. To se izvede s ščitom 29, ki zmanjša pršilni stožec. Za proizvode iz takšnih postrojenj je tipično, da ploskve, ki jih pršilni stožec neposredno zadane, obsegajo ustrezno debel nanos, medtem ko druge zaščitene ploskve obsegajo tipično barvno oblogo, ki jo povzroči neizogibna barvna megla. V nekaterih primerih, zlasti ko je predvidena nadaljnja obdelava z barvo obrizganega gradbenega lesa ali ko naj se namesto lesa pobarva profile iz umetne mase, je ta iz pršenja izhajajoča obloga neželena. V vsakem primeru je razen postrojenja za brizganje barve potrebna temu postrojenju spredaj priključena dovajalna naprava za profilne palice, zadaj pa naprava za nadaljnji transport. Nadaljnji transport sledi bodisi v sušilno peč ali sušilno postrojenje.The invention is based on the preparation for applying paint to the wood according to the preamble of the main claim. The known preparation of this kind is a flow sprayer, which can be applied to different profiles of construction wood of different lengths. Often, by spraying paint, it is not applied to all surfaces of construction wood, e.g. only the outlying surfaces that are visible. Other surfaces that do not paint should be protected from fog. This is done with a shield 29 that reduces the spray cone. For products from such plants, it is typical that the surfaces directly affected by the spray cone comprise a suitably thick coating, while the other protected surfaces comprise the typical color coating caused by the inevitable color fog. In some cases, especially when further processing with the color of the cut construction wood is envisaged, or when plastic profiles are to be painted instead of the wood, this spray coating is undesirable. In any case, apart from the paint spraying plant, a feeder device for profile rods is required to this facility, and a rear conveyor device to the rear. Further transport follows either to the kiln or to the kiln.

Prednosti izumaAdvantages of the invention

Priprava po izumu s karakteristikami iz značilnostnega dela glavnega patentnega zahtevka ima temu nasproti prednost, da se izboljša kvaliteto brizganja z barvo in da je po drugi strani s sodelovanjem mask in profilnih palic podano dodatno vzdolžno vodenje, zlasti tudi v postrojenju za brizganje barve samemu. To vodenje omogoča zelo ugodno nastavitev pršilne šobe za barvo na ploskve profilnih palic, ki naj se jih osloji, tako da se le malo barve brizga mimo teh ploskev, s čimer se izgubo barve minimizira. Ugodno prekritje se doseže predvsem tako, da profilne palice pri transportu skozi postrojenje za brizganje barve v vzdolžni smeri drsijo po vzdolžnem robu pločevinaste maske. Nadalje sta na razpolago prekrivni napravi s profilnimi palicami sodelujočih vzdolžnih robov mask, ki se ju da prestavljati s profilnimi palicami, pri čemer se da prvo prekrivno napravo vzdolžno potegniti v transportni smeri do stika pred vsakokratno profilno palico, ki naj se jo osloji, drugo prekrivno napravo pa neposredno po profilni palici toda vsakokrat z njo med pršilno šobo za barvo in masko. Da bi se ploskve, ki naj se jih osloji, na profilnih palicah na začetku kot tudi na koncu zadosti oslojilo, se mora pravočasno pričeti z brizganjem barve, tako da je neizogibno, da bi določene količine brizgane barve zadele vzdolžne robove mask, predno bi bile prekrite z vzdolžnim zdrsom profilnih palic. Z uporabo prekrivne naprave se prepreči obrizganje teh vzdolžnih robov, s čimer se na prednosten način prepreči, da bi se tamkaj razpoložljive količine barve lahko nekotrolirano preneslo na profilne palice. Pri prekrivnih napravah gre lahko za pločevinske trakove, ki se jih pri transportu profilnih palic od le-teh potisne na maske oz. pred njih vzdolžne robove. V osnovi velja enako za nevarnost obrizganja vzdolžnih robov mask po prevozu profilnih palic, kajti tudi tu se brizganje lahko konča šele tedaj, ko so profilne palice dejansko zapustile pršilni stožec. Tudi tu lahko kot prekrivna naprava služi pločevinski trak, s katerim se ponovno da profilno palico samo potisniti skozi postrojenje za brizganje barve in položiti na vzdolžne robove mask ter voditi na njih.The device according to the invention with the features of the characteristic part of the main patent claim has the advantage of improving the quality of the ink spraying and, on the other hand, additional longitudinal guidance is provided through the cooperation of masks and profile bars, especially in the ink spraying plant itself. This guidance makes it very convenient to adjust the spray nozzle to the surfaces of the profile bars to be loosened so that only a small amount of paint is sprayed past these surfaces, minimizing the loss of color. The advantageous cover is achieved in particular by sliding the profile bars along the longitudinal edge of the sheet mask when transported through the paint injection plant in the longitudinal direction. Furthermore, overlays are provided with profile bars of cooperating longitudinal edges of the masks which can be moved with profile bars, whereby the first covering device can be pulled longitudinally in the transport direction to the contact in front of each profile rod to be released, the second overlay the device directly on the profile bar, but each time between the spray nozzle for the paint and the mask. In order for the surfaces to be loosened to be sufficiently loosened on the profile bars at the beginning and at the end, the ink must be sprayed in a timely manner so that it is inevitable that certain amounts of sprayed paint hit the longitudinal edges of the masks before covered with longitudinal slip of profile bars. The use of an overlay prevents these longitudinal edges from being trimmed, thereby preferentially preventing the amount of paint available there from being transferred uncontrollably to the profile bars. Covering devices can be sheet metal strips which are pushed onto the masks or when transporting profile bars from them. longitudinal edges in front of them. Basically, the same applies to the risk of cutting the longitudinal edges of the masks after transporting the profile rods, since even here the injection can only end when the profile rods have actually left the spray cone. Here, too, a sheet can be used as an overlay to re-push the profile bar through the paint spraying plant and place on and guide the longitudinal edges of the masks.

Naprava za nadaljnji transport je po izumu opremljena s pločevinastim tunelom, skozi katerega se dalje vodi z barvo že oslojeno profilno palico, pri čemer prva prekrivna naprava drsi nad tem tunelom, posluževalec pa jo za novo uporabo ponovno vrne k dovodni napravi.According to the invention, the further transport device is provided with a sheet metal tunnel through which a color-coded profile rod is further guided, with the first covering device sliding over that tunnel and the operator returning it to the feeder for new use.

Po nadaljnji prednostni izvedbi izuma so pršilne šobe za barvo razporejene v prostoru, ki je namenjen prehodu profilnih palic in obsega odsesovalno napravo. Zaradi mask je podano ugodno vodenje profilnih palic, tako da se nanašanje barve lahko izvaja na slepo.According to a further preferred embodiment of the invention, paint spray nozzles are arranged in a space intended for the passage of profile bars and comprising a suction device. Due to the masks, the profile bars are advantageously guided so that the paint can be applied blindly.

Po nadaljnji prednostni izvedbi izuma so maske pritrjene s pomočjo prečno na transportno napravo razporejenih držalnih drogov, pri čemer po nadaljnji izvedbi izuma maske štrlijo v dovajalno napravo. Držalni drogovi so s tem pritrdljivi zunaj transportne poti in zlahka zamenljivi in po omenjeni izvedbi izuma tudi pritrdljivi zunaj postrojenja za brizganje barve, in sicer v območju spredaj priključene dovajalne naprave, ki mora za sprejem transportnega traku ali transportne naprave obsegati ustrezno ogrodje, da lahko nosi to držalno napravo. S tem je med transportno napravo in masko na prednosten način podana nastavljiva razporeditev.According to a further preferred embodiment of the invention, the masks are secured by means of transversally mounted holding poles to the conveyor, whereby after the further embodiment of the invention the masks project into the feeding device. Holding rods are thus fixed outside the conveyor and easily replaceable and, according to the said embodiment of the invention, also mounted outside the paint spraying plant, in the area of the front feeder device, which must comprise a suitable frame for receiving the conveyor belt or transport device so that it can carry this holding device. This advantageously provides an adjustable arrangement between the transport device and the mask.

Po nadaljnji prednostni zasnovi izuma prijemlje maska s svojim vzdolžnim robom v utor na mimo transportirani profilni tirnici. Zlasti pri okenskih profilih so v povezavi s predvideno barvno oblogo na razpolago v glavnem tovrstni utori.Following a further preferred embodiment of the invention, a mask with its longitudinal edge is inserted into a groove on the transported profile rail. Particularly for window profiles, such grooves are available in conjunction with the intended color trim.

Po nadaljnji prednostni izvedbi izuma so za vpeljevanje profilne tirnice v masko oz. postrojenje za brizganje barve na razpolago v transportni smeri potekajoča prislonska ravnila, ki sodelujejo z ustreznimi vzdolžnimi ploskvami profilne tirnice, pri čemer so po izumu ta prislonska ravnila lahko opremljena z vodilnimi kotalkami in prednostno razporejena v dovajalni smeri. Tudi ta prislonska ravnila so zasnovana v odvisnosti od profila tirnic, in sicer so pritrjena lokalno togo toda prestavljivo in sprostljivo. Ta prislonska ravnila se da po izumu uporabiti tudi kot transportno sredstvo, pri katerem so predvideni v profilne tirnice prijemajoči in s tretjim sredstvom gnani valji, medtem ko dovajalna naprava služi kot prenosnik.According to a further preferred embodiment of the invention, for the insertion of a profile rail into a mask or. a paint spraying plant available in the transport direction running back rails that cooperate with the corresponding longitudinal surfaces of the profile rail, whereby according to the invention these stop rulers may be provided with guide rollers and preferably arranged in the feed direction. Also, these rulers are designed depending on the rail profile, and are fastened locally rigidly but removably and reliably. According to the invention, these stop rulers can also be used as a means of transport, in which the rollers provided with the gauge and the third means are driven by rollers, while the feeding device serves as a carrier.

Po prednostni izvedbi izuma pa se transport profilnih tirnic izvaja s pomočjo transportnih trakov.According to a preferred embodiment of the invention, the transport of profile rails is carried out by means of conveyor belts.

Nadaljnje prednosti in prednostne izvedbe izuma so razvidne iz nadaljnjega opisa, skic in patentnih zahtevkov.Further advantages and preferred embodiments of the invention are apparent from the following description, drawings and claims.

SkiceSketches

Izvedbeni primer predmeta izuma je predstavljen na skicah in pobliže obrazložen v nadaljevanju. Pri tem kaže:An exemplary embodiment of the object of the invention is presented in the drawings and explained in more detail below. It shows:

sl. 1 pripravo za nanašanje barve v perspektivnem pogledu, sl. 2 pripravo s sl. Iv pogledu od zgoraj, sl. 3,4 pripravo pri uvajanju profilne palice v pogledu od zgoraj in od strani, sl. 5, 6 pripravo pri odvajanju profilne palice v pogledu od zgoraj in od strani.FIG. 1 shows a perspective view of a paint application, FIG. 2 is a preparation of FIG. From the top view, FIG. 3.4 preparation for introducing the profile bar in the top and side view, FIG. 5, 6 preparation for removing the profile bar in the top and side views.

Opis izvedbenega primeraDescription of an embodiment

Priprava po izumu sestoji iz treh odsekov, namreč dovajalne naprave 1, postrojenja 2 za brizganje barve in naprave 3 za nadaljnji transport. Dovajalna naprava sestoji iz transportnega traku 4, na katerem se postrojenju 2 za brizganje barve dovaja profilne paliceThe device according to the invention consists of three sections, namely a feeder device 1, a paint spraying plant 2 and a further transport device 3. The feeder consists of a conveyor belt 4 on which profile bars are supplied to the paint spraying machine 2

5, kot tudi iz vodilnih ravnil 6, ki sta namenjena vodenju profilnih palic 5 in sta obešena na drogovih 7, tako da je spremenljiv zlasti vzporedni razmik med vodilnima ravniloma. Drogovi 7 so prestavljivi v pobliže neopisanih tulkah, ki so razporejene na neprikazanem ogrodju dovajalne naprave 1, ki nosi tudi transportni trak 4. Da bi se trenje med vodilnimi ravnili 6 in profilno palico 5 držalo karseda majhno, so na vodilnih ravnilih 6 predvidene kotalke 8.5, as well as guide rails 6, which are designed to guide the profile bars 5 and are suspended on the poles 7, so that the parallel distance between the guide rails is particularly variable. The poles 7 are adjustable in closer-spaced nozzles arranged on a non-shown frame of the feeder device 1, which also carries a conveyor belt 4. In order to keep friction between the guide rulers 6 and the profile bar 5 as small as possible, rollers 8 are provided on the guide rails 6 .

Postrojenje 2 za brizganje barve obsega črta-pikčasto nakazano ohišje 9, v katerem sta razporejeni vsaj dve glavi lis šobama 12 za brizganje barve, preko katerih se zatem barvo brizga na profilne palice 5, kadar se vsako transportira skozi postrojenje 2 za brizganje barve. Pare razredčila za barvo se odsesa preko odsesovalne naprave 13 ohišja 9. V ohišju 9 sta razporejeni maski 14, s katerima se takoj ko so potisnjene v postrojenje 2 za brizganje barve pokrije tisti del profilnih palic 5, ki ga ni potrebno oslojiti. Ti maski sta preko držal tako pritrjeni na ohišju 9, da se jih da vsakokrat zamenjati z drugima maskama. Oblika mask je odvisna od oblike profilnih palic in vsakokratnega dela profilnih palic 5, ki ga je potrebno prekriti z barvo. Na maskah 14 sta na voljo vzdolžna robova 16, ki sodelujeta neposredno s profilnimi palicami 5 in tamkaj v glavnem prijemljeta v vzdolžne utore, podane s profilom. Maski 14 segata s svojima sprejemnima odsekoma daleč v dovajalno napravo 1, vse do vodilnih ravnil 6, da bi se s tem še pred brizganjem lahko doseglo oblikosklepno zvezo s profilnimi palicami 5, in sicer tako, daje ta zveza preverljiva, dokler se profilna palica 5 še nahaja zunaj ohišja 9 postrojenja 2 za brizganje barve.The paint spraying plant 2 comprises a line-dotted pointed housing 9 housing at least two heads of paint spray nozzles 12 through which paint is sprayed onto profile bars 5 when each is transported through the paint spraying plant 2. The paint thinner vapor is sucked off by the suction device 13 of the housing 9. There are masks 14 arranged in the housing 9, which, as soon as they are pushed into the paint spraying plant 2, cover the portion of the profile bars 5 that does not need to be removed. These masks are mounted so securely on the housing 9 that they can be replaced with other masks each time. The shape of the masks depends on the shape of the profile bars and the respective part of the profile bars 5, which must be covered with paint. The masks 14 have longitudinal edges 16 which interact directly with the profile bars 5 and generally therein grasp the longitudinal grooves specified by the profile. The masks 14 extend their receiving sections far into the feeder 1, all the way to the guide rulers 6, in order to achieve a pre-injection connection with the profile bars 5 before injection, so that this connection is verifiable as long as the profile bar 5 is still located outside the housing 9 of the spray paint plant 2.

Naprava 3 za nadalnji transport obsega ponovno transportni trak 17, na katerem se oslojeno profilno palico transportira v sušilno postrojenje. Transportni trak 17 je obdan s pločevinastim tunelom 18, skozi katerega se transportira tudi oslojeno profilno palico 5.The follow-up device 3 comprises a re-conveyor belt 17 on which the suspended profile rod is transported to the drying plant. The conveyor belt 17 is surrounded by a sheet tunnel 18 through which a suspended profile bar 5 is also transported.

S sl. 3 in 4 se vidi, kako se profilno palico 5 potisne v pripravo. Da se maski 14 pri brizganju barve ne zadane, je vsaka pokrita s prekrivno pločevino 19, ki jo pri transportu profilne palice 5 drugi prednji rob 21 potegne s seboj, tako da se površino profilne palice 5, ki jo je potrebno oslojiti, osloji od prednjega roba naprej. Prekrivno pločevino 19 se med tem transportnim gibanjem potisne v pločevinasti tunel 18 in se jo od tam lahko vzame za novo uporabo.FIG. 3 and 4 show the profile bar 5 being pushed into the device. In order to prevent the paint mask from being sprayed, each is covered by a cover plate 19 which is pulled away by the second leading edge 21 when transporting the profile bar 5 so that the surface of the profile bar 5 to be loosened is removed from the front goods forward. The cover plate 19 is pushed into the sheet tunnel 18 during this transport movement and can be taken from there for new use.

Ta nova uporaba je opisana s pomočjo sl. 5 in 6. Prekrivna pločevina 19 se m nasloni na končni rob 22 profilne palice 5 in prekrije maski 14, takoj, ko se ju zaradi transporta profilne palice 5 naprej razkrije. Čeprav sledi uporaba prekrivne pločevine 19 pri tem izvedbenem primeru ročno, se da po izumu krmiljenje tovrstne prekrivne pločevine izvesti tudi samodejno.This new application is described by means of FIG. 5 and 6. The cover plate 19 m rests on the end edge 22 of the profile bar 5 and is covered with a mask 14 as soon as it is further exposed due to the transport of the profile bar 5. Although the use of the cover plate 19 in this embodiment is followed manually, it is also possible to control this cover plate automatically according to the invention.

Vse značilnosti, predstavljene v opisu, sledečih patentnih zahtevkih in skicah, so lahko bodisi posamič kot tudi v poljubni kombinaciji medsebojno izumiteljsko bistvene.All the features presented in the description, the following claims and drawings may be individually or individually in combination with each other.

Claims

Patent claims

Apparatus for applying paint to profile bars (5), in particular plastic for windows with a paint spraying plant (2, 9, 11, 13) comprising paint sprays (12) through which profile bars (5) which they need to be discharged, flowing transversely to the direction of injection of the spray nozzles, with a feeder (1) for profile bars (5) connected in front of the paint spraying plant (2) with a device (3) for further transport of the deprived of profile bars (5) connected behind the paint injection plant (2) with at least one mask (14) against the application of paint, which is locally rigid but alternately arranged between the nozzle (12) in the paint injection plant (2) paint spraying and profile bar (5) and oriented in the flow direction of the profile bars (5), characterized in that the mask (14) is formed of sheet metal and comprises a longitudinal edge (16) facing the profile bars (5), and interacts with the profile bar surface (5) and that overlaps (19) are available for pr the connecting rods (5) a co-operative longitudinal edge (16) of the mask (14), wherein the first covering device can be pulled longitudinally in the transport direction to the contact in front of the respective profile rod (5) to be released, the second covering device (19) directly on the profile bar (5), but each time between the paint nozzle (12) and the mask (14).

Apparatus according to claim 1, characterized in that the paint spraying nozzles (12) are arranged in a space (9) intended for the flow of profile bars (5) and comprising a suction device (13).

Apparatus according to one of the preceding claims, characterized in that the mask (14) can be attached by means of transversely to the transport direction of the arranged holders (15).

Device according to one of the preceding claims, characterized in that the masks (14) project all the way to the feeder (1).

Device according to one of the preceding claims, characterized in that the mask (14), with its longitudinal edge (14), grips a profile rail (5) conveyed thereon.

5

Device according to one of the preceding claims, characterized in that for introducing the profit rails (5) into the mask (14) or. a paint spraying plant (2) available in the transport direction of the running stop ruler (6) which cooperates with the corresponding longitudinal surfaces of the profile bars (5).

10

Device according to claim 6, characterized in that the stop rulers (6) are provided with guide rollers.

Device according to claim 6 or 7, characterized in that the stop rulers (6) are arranged in the feeder device (1).

Device according to one of the preceding claims, characterized in that the transport of profile bars (5) is followed by conveyor belts (4, 17).