DE1427632A1 - Device for electrical charging of coating material - Google Patents

Description

Dl. E. WIIGAND HAMBURGI, 2} · Mtl 1902

MÖNCHEN BUILDING DAM 24

DIPL.-ING. W. NIEMANN phone. 330475

HAMBURG PATINTANWXLTI

Corp.,

TfciiantpoUt, ZMIaM. (Y.ft.A.) Lariohtua "MB oloktrlaolMft AiIfIaAM" ob Om * -

ttorlal.

Dl · BrflAfeag bttloht see device «* np Hof · atoJUung toi XmtMubtm mm ol excleoU aufMlaMMn

I) HB ₁ vni al MfWl% See tMbMMTi WX M VbrrlofatuoeM mm BmtiU «· 1μ · Mbola tob aufgoU

nlffi «t eloli 4m flia» MMM < nt al laitor Atr Buwii * - *

M «r« IM FlMM AM

MltiUai an am XaffaUbdMHP · voai mlaliatt oa I »AHP FOl» «UM MAtlS VWl fOla MTMiItM

la «« Mi · »« tAO «lAklVtAM Ml) MITtMM

9098Λ5 / 0086 BAD

turning · metal handle or «in · Olook · open. oversaatcrial » an aoloous atomizer leads to a flee is "moved by turning the atomizer to its Uafang" The Ubersaaterlal becomes from dlesca Uafang in the fora a mebela aua finely distributed charged particles emitted · the one applied to a separate device The voltage in the general area is independent of the distance between the device and the earthed position, and such a device generally has a high effective capacity ". A disadvantage of such an atomizer lies in "there" when a person looks up In addition, they are extremely detrimental Shock experienced, and one emerging from the atomizer Spark can be released overseas?! ·! dispatch or cause an explosion

A further embodiment of a ZeratXubera, as it has been used in the past, "has a rotating olook made of laolleraaterlal, which has an electrically conductive (Ibersug old high resistance that extends over one of its flies when the bell is turned" that the aioohc sugefUbrte überiugsaifcerial by centrifugal force over "in the fleeing of the Oloeks sa the A) ^ dispensing edge of the Olocke observes, when the lelt Oasraag" ias Auf-ΐ awangsspimufiic is put on "the f? li iHtsaatcrlilil is charged by the Abgabeaatcrlil »« * · Etatisehea glsisiFiielhlagim eaf £ m_ m.

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BAD ORDINAL

Such a "bell produced" was an atomized high quality of "finely distributed particles" for use in coating processes, if the bell has a loud durometer, but for safety reasons the coating has a surface that is too high or too small have Oberflifohenleltfählgkelt "vm at daa create a autreichende charging material to be sputtered. Furthermore, the electrically conductive surface with high resistance on the bell is subject to disadvantageous friction or sohrubbwlrkunc if the conductive coating is placed flat on the bell, over which the surface moves, and an accidental anosis or a floor slap on the dispensing edge can the conduct «damage the coating and therefore adversely affect charging. Furthermore, the relatively high temperature "required to treat the conductive coating" can physically deform the bell.

Therefore, the general purpose of the invention is » to create an improved atomization device that reported the disadvantages and difficulties mentioned above. In particular, a purpose of the invention is to provide a To create an improved atomizer which has a sufficiently low effective capacity to withstand shocks and fire Reduce options to “In Oerlngstaai su, and the nevertheless it is sufficiently conductive that the overseas seeds are. the desired electrical potential can be imposed

909845/0088 BAD

can, if "ι" loh is in the distribution or charging zone " and which is extremely resistant to chemical and abrasion effects of oversized materials.

Another purpose of the invention is to provide a Charging «create a device» that has a discharge edge «that is not easily damaged by an accidental impact can be. Another goal of the invention is to “create an inflation device” which. the effect of the deformation of some of its parts «the results from their production «reduced to a Ceringatnei Another purpose of the invention is to "create a large, safe atomizer" of which cover material with increased uniformity can be delivered.

Oils "is the effective capacity * of an electrode aayatea not a matotab for the ability of the system «electrical Picking up energy (usually called electrical KajKitans des Sjreteae is rewarded) «but is a lot ■ or a measure of inclination or the possibility of a "disruptive" Charge «which can be received by the system« among other things give a shock * u give a shock »deflas» - ignite exposed vapors or cause an explosion. It is a direct puntion of four lectures without a clue and an inverted puncture of the distributed "reading" Resistance and the electrode scrape ”, however, has «GrOie do not read any suitable descriptions. If one

9098A5 / 0086 bad original

Electrod · au · MeUIl produced let, your · seeds came Xapasltaaa la essential to be discharged instantly * and your «Oröft · on therefore from OrBnAm dtp safety vtrhMltnl — IHg klein «« In. Wena on the other side The electrode is made of a highly resistant material produced did «i.B. one I "oll" raat "nal al" hooh ^ wlder * ■ tackdaflhlcta · 4μ> halbleltindia Ob * r «u« j becomes dl · gtaaat · Kapasitans der Kl «ktrod · nloht augmablleklioli« ntlaAan * and a part of the "ap" ietMrt "tt Ikwrgi · is dureh dan Vlderataad dtr Blaktrodrertellt. Therefore «lnevoloh · Blak trod · «red Mia al · ·· aonat lullaale« ar * Furthermore, dlaoharf · training iron requires exposed parts « Electrode the Xoniaatioa and «rWJht Xrl« ehatrOa · au · 11 «Oraita« loh a reduced · BUktrodeaapannune and «In · Yeralnderte BtttUdungalateMltlt results.

Oeali an AuafiBirungafora the invention let a · Vorrlohtung lua charging Toa iu Zeratlubendea geechaffan » dl · au · elaea «l eclaohen laolieraaterUl beeteht that • in «lektrlMh conductive ·, Tormgamla · semiconductive ·· Bl · - aeat on ^ elat, that within the Torrlehtung g «tr« ean «M and «lae naeh aulen darg * bot« n · aahalflBon »has» the la «iaaa Bntladunestell eadigt * Oae elektrUoh leltead«

tirtiaiiaa Ml »and is in eiaer gt« llaag ang »ordMt _# Sa weloher ea · Oberwagaaaterial mX% Um in ArbelU wtti ladaagj nah · dea Bmtliiaagatill, is brewed,

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are provided for! Tberaugsmaterlal from a supply source the transfer tax flee · lusufUhren and · ■ in progress connection old move the electrically conductive element and the dispensing part from which the cover material In the fora a · lever · or atomized of finely divided charged particles turn precipitates towards the above grounded objects is handed over

Further purposes of the invention are derived from the following Description in conjunction with the drawing in soft embodiments of the invention, for example are shown.

Figure 1 is a vertical sectional view of an electrostatic charging device having a Destroyer according to the invention, there is that Obersugsamterlal and dl · supply lines for electrical Energy schematize!) Again FIG. 2 is a top plan view of that shown in FIG

Atomizer «»

Fig. 3 is a letter Q% m & modified from »21Btrun ** fOTB dtftsele & frls ©» conductive »elements according to Flg. 1"

A typical Vof7i $ htung ® ** U ύ »ν Invention 1st In the drawings t; i ^ d« rg «ci ^^ i vbsA ymtm% eiBaa Atom lubep äw from a mlteisft £ isiig * T.Wmz & ntm M $ 3Sg & ®vpw? W ₉ edge part ft ^ üii mime n®tm% te® 1% l ^ is set "dl" with

909845/0086 ^BAD original

U27632 - 7 -

KIU lct shown in Fie · _# 1, the annular body 10, a pair Krelarlngtellc 15 and 16 which are made of electrical "lnoliermaterlal, EP bound by Epoxyhars Olasfasem or the like. * Which cegen the sound Abrlebvlr * and the attack by the Solvents or other constituents which may be present in the coating material to be atomized can resist. The inner circumference of the ring 16 is spaced apart from the inner circumference of the ring 15 in the radial direction and the outer circumference of the ring 16 extends around the outer circumference of the ring 15 and protrudes over it in the axial direction by a step or a hip 10 "which extends around the outer circumference of the rear wall 10. As shown, the dam 18 has an elongated surface parallel to and axially at a distance from the upwardly presented flight of the hanging 15. One function of the dam 18 is" any Defects in oleohf'naiglceit in the distribution of the excess material to be oiled "that arrived at the inner" part of the dam 18. In a telegame way, he contributes to "removing any interruptions in the film from covering material * that arrives at the foot of the inner Daomteilea 18a" and he carries out the excess event equal to the sharp-edged circumference 16b "which is at or near the that Atomized forming zone is located. Another part of the goal of Damaes 18 is "that, if he

9 09 8 45/0086 _ΒΛ ο

He has the right shape in the concentration of the field limited only to the atomized nerete zone. Dleee perimeter edge can be 1/4 round as shown Edge be formed "or she came in the form of an underbug Have a knife edge »The use of an insulating surface on the outer edge that the atomizer has the endeavor to increase the electrical concentration in the area forming the atomized material and avoids damage for the connection of the electrically conductive element, that lies next to it. One advantage of this 1/4 rounded edge is that "in addition to the fact" because of this, in the zone producing the atomized material, there is an increased Field consolida- tion is created “but still an atomizer edge creates "the" ine Fons has "which cannot be easily resolved

Between the rings 15 and 16 there is an electric Conductive element 20 "which has a high resistance distributed in its interior, is useful as" in semiconducting ham containing a coating that is applied to the hanging 15. Can be used alone distributed electrically conductive solid particles contain «s.B. finely divided carbon "which is contained in a resinous binder" s.B. a synthetic material that solidifies in the heat "is worn, as can be seen", the element 20 can To be composed so as to give it a predetermined resistance we give "" in the mang · des to the hardy

9 0 9 8 4 5/0086 BAD ORIGINAL

Binderttf 1 given carbon ·· * in what «« · content we «, regulated« ir «· Tw« sfcjaMtlg eohaves daa Bleaent 20

• In one part, the iron resistance of many Kegoha J · en ² rises, However, the Vlderetandhaftness not ao big «« in »« al di · maintenance of the ···· enriching AutluAmmpotmxtUJLm with the «ZmtHibt · educational« zoo · Becomes raw indart. Wi * in rig · 1 d * rg «* Ullt i * t» iat daa 1Γ1 — nt SO «wiaotwi dta faonbartii Pllohen the rings 15 and 16 antlaeh enfjaanhaT te» and with the neighboring fleeing the «« · hung · arrested, in de «VaIl, in de * da · EUeent on the XiBg 15« 1 «hwritiaittgr Obermug» should «the Wimg 16 bit because« hard-like * Tb «ripped through« in material, Mi »* s» B «inea not cemented leading Bpoxyhiri »a — it or« putty · The largest part d ·· lleewite · 20 iat dahar iwiaah— dem hanging 15 and 16 awiachengeschlohtet gonalten «wotoai a« in IaBaTaT edge part radial «inwlrt · voai inajaraai OMTang daa Risga ·) 16 in one not abgaaohimtea] Lag · aaj§) aapdMit is * ZiiaeloeMgig asdigt dl ·) AuBaBkante das Klaawatea) 80 in dar Ikaaj · dar daa Πΐιτιιιι, ι-I <r1a1 given * dan PlXena

Oar distributed Videratend de · lie — ntea 80 »la connection «It dar Tateaoh ·» da · da «11 — int swisehen dam Faar • lastrigah iaell «rter Xing« 15 «ad 16 iwisohengoahalts let, hm «das iTgaBBia» da · dar Zaratlttbar a · lower one effectively has capacity. Dater came the Zwatluber tli "

909845/0086

They have a relatively large diameter and then still have sufficient conductivity "to prevent an excessively large voltage drop across the element" so that an effective and effective field coercion can be maintained in the dusty zone without any danger to safety. The layering of these parts strives to "prevent the single parts from being discarded" and creates a rigid structure.

The inner edge of the ring 15 is connected to the edge part 12 by a non-conductive binding agent "sB a Bpoxyharzkltt" where the upper edge "of the edge plate 12" as indicated at 22 is "provided with a shoulder" around its upwardly presented edge. in the same plane with arranging the ^f lberzugsmaterial emitting surface of the ring 15 °. For the reasons explained below, the edge part 12 is provided with a circular trough 2% "whose aiisenwaroinng is beveled upwards at 26 and ends in a circular shoulder 28. of the edge part 12.

The edge portion 12 1st s "B" produced by post 32 "dl" of electrically insulating material are "connected to the disc 1%" Vm facilitate Zusamaenbau d®r VerrlcSifestg su "1st, the element 20 the old ling arrested 15 * and

909845/0086 ORIGINAL BATHROOM

Ring 16 is then adhered to element 20. The edge part 12 is attached to the plate 14 by pins, and the Hlnc Vj with de »element 20 and connected to ilim illng 1ό are then adhered to ΐε dexa edge portion. In this way, the hanging 16, which generally lies in the same plane as the pegs 32, does not allow the edge part 12 and the peg 14 to be connected.

As shown, the flttahe that is presented after practice lies of the disc 1 * generally in the same plane as the mountain delivery area of the ring 15 and the outer Senua fang the ü hot 14 lies above the round roof shoulder 28 in an axial distance from it · Therefore, when turning the atomizer, coating material «climbs, for example, a color, as used in commercial paint atomization processes is that the trough 24 through a nozzle 24 from a öpeleeouelle 35 zugefUhrtwlrd, under the action of Centrifugal force lungs of the edge walls 26 and 30 according to on top of the Uberzugaabgabeeflache of the ring 15 · Zn the Most of the cases !! supersugamaterlallen are not strongly electric conductive, and if such material ions are used, then lead 35 and possibly any Intermediate point of the feed line, which extends from the Supply source 35 extends to be electrically grounded * However, in the case * that upper materials of are of the kind that have a relatively high percentage * enteile en AltMriLnluaplgmtnt sat, or allow any *

90 9 8A5 / 0086

Another component should have good electrical conductivity «the supply line 35 and the feed line should be electrically isolated from earth. In the latter case, there is a certain loss of working life in the system, but it is still safer than, for example, occasionally used electrostatic metering devices with disks. The formed by the disc 14 · Vehr "the above Randsohulter 28 is" limits the ^r "eweguns of Uberzugsmaterlals to the walls of ftandloilea 12 and prevents the" berzugsiaaterial generally axially outwardly from the NaOH presented above edge of the edge wall The centrifugal force generated by the rotary movement of the atomizer causes "that the covering material moves across the upper KuijnnböabeflUche of the ring 15 on an edge" whereby the covering material works in connection with the HuOeron along the peripheral edge of the conductive element PO. Element 20 is connected to high voltage by a high-voltage connection 37, which is fed from a high-voltage source 29. Therefore, the covering material "which moves to the edge of the hanging 15" is in connection with the cathedral ceiling 20 and moves over the Dana 18 «which is made of electrical insulation material and is located radially outside the element 20 is arranged and to the edge 18t> «from which it is as atomized by finely distributed, electrically charged midien sun hiederechla-

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BAD QFUG'NAL

is distributed to the overhanging earthed stands. Zwekrattßi £ a high voltage of at least 40,000 volts, preferably 70,000 volts or more from the voltage source Γ? 9 supplied (generally from its negative terminal), through a resistor, preferably in the range of several megohms per kilovolt applied, with a considerable Part of the resistance of the I Urs te 37 is applied adjacent, and through the roof to it. the requirement to generate the necessary electrical gradient between the "deadened" object and the objects to be coated. If this device is used with a supply voltage that has an output voltage which decreases noticeably when the current increases, the series resistance can be reduced.

In order to rotate the atomized material, the disk 14 is provided with a drive shaft 39 by a structure connected, its individual parts in your counseling preferably are made of electrically insulating materials. Such a structure has a hat 4o, those with the disk 14 by a plurality of visual screws 42 connected is ;. The hat 40 protrudes in the axial direction the edge portion 12 in front and has one shouldered Opening 44, which at its upper end 2Ar receiving a Screw 45 is formed, which the hub 40 with a drive coupling 47 connects, «oak on the rotatable mounted taetea Drive shaft 39 through a non-conductive "

Binder 49 ″ is arranged. As shown «that will Antrlehsznoment the clutch 47 on the hub 40 by a Kell 4b transferring in matching wedge slots or -tracks takes place »in the hub 4o and in the coupling 47 are designed · The coupling 47 is in one Bearing 52 mounted, which is connected to a bush 58 1st. A platform 56 is connected to the bearing 52 by screws 54 connected α The platform 56 is used to carry the line for the Oberzugiraattrial, which leads to the XXlse 34 and for the cooking voltage introduction to the first 37.

In certain embodiments, it may be desirable to drive the atomizer by an electric motor (not shown) to drive, which is enclosed in a housing 57 1st. The drive shaft 39 and the motor can be in the Bushing 58 so that the exiting air moves inside the bushing 5 and through guides 60 formed in the bearing 52 of upwards to the outside through the space 63 between the hub 40 and the camp 52 atrumt.

The nebulizer is here as in an upright position horizontal position has been reproduced and explained However, Br can indicate-OFdDSt at any arbitrary level and can be arranged in the inverted position »with the covering material dispensing area facing downwards The drive coupling 47 is used for this purpose at its end facing away from the hat 40 with one

BATH ORIGINAL

9 09 8 MB / 0 0 86

Long rib 65 provided. Therefore, if the atomizer arranged in such a way that the coating releases the coating Face of the ring is presented downwards «let the The atomizer is connected to the drive shaft 59 by the cement 49 which connects the coupling 4.7 to the drive shaft 39) However, in the case of the üruohes of the putty or In the shaft 29 or In the Swlsolienverblndung between the shaft 39 and the motor of the atomizer nevertheless be prevented from "falling off the drive shaft" this is achieved by the rib 65 on the coupling 47, the old camp 52 1 «is engaged.

An electrically conductive part PO * «which forms a modified form of the part 20« 1st In Flg. 3 and can be used instead of part 20. The part 20 * can be formed on the ring 15 and contains a pair of concentric rings 67 and 69 made of a semiconductor coating which is applied to the channel 15. The rings 67 and 69 are arranged on the ring 15 near its inner and outer edge "whereby the ring 67 can come into contact with the brush JF " and the ring 69 is arranged near the inner part 18a of the dam. The rings 67 and 69 are electrically connected to one another by electrically conductive parts. In the form of wires 70 with small diameters, they are accommodated in recesses in the ring 15 and the bars 67 and 69 are electrically connected.

The atomizer shown in the

909845/0086

nig · Shaping «ββ let However, illuminating» that the Zer * Deaf contours can be given in such a way that that he is not a Kreieföraig «, generally a kegeletuapfför-Blge or generally tubular Fora aimlamt.

The invention has been described in connection with a rotatable ZoretKuber «the Orunda & tse of the invention However, you can also use a non-rotating Zeratauber be applied »as it is in the U.S. Patent earlft 2 748 let open and can be used with atomizers » which use finely divided hangover balls in both liquid and moist form.

BAD ORIGINAL 9098 4 5/0086

Claims (1)

Claims. 1. Device for the electrical charging of coating material » with a spray mist charging device »the coating material is supplied from a supply source, since * characterized in that the sputter charging device consists of electrical insulating material »in which an electrically conductive part (s) is carried and with a surface exposed to the outside and a discharge part provided is »wob ·! the electrically conductive part old one High voltage source arbeltsmMSlg can be connected » funds are also provided »by the ÜberzugsiaaterIaI from a dining quo11 on the area presented to the outside is supplied and see in work connection old to the electrical conductive Toll and can move to the delivery part »from which it is delivered as a charged Zorstttubtes · 2 · Device according to claim 1 »characterized in that daü dl first and second Insulating part, of which one has an outwardly exposed flee and the electrically conductive part between these parts swisohengelsohalte 1st. 3 · lin direction according to claim 2 »characterized in that since the electrically conductive part of a flee is the insulation, parts connected and the other of the insulating parts stoh fflwr at least · a part of these · electrically conductive parts · extends and old shark worth undea let. 90θδΛ5 / 0086 -1D- k. Device according to Claim 2, characterized in that the first and second insulating parts have generally fiing shapes. 5. Device according to claim 4, characterized in that « that the electrically conductive part has a pair of generally concentric semi-loiting hinge, which is close to the inner and the outer periphery of the first and second insulating parts a are arranged and are electrically connected to one another by one or more electrically conductive parts. 6. Device according to claim 4, characterized »that the electrically conductive part is a thin ring-shaped
Has layer of semi-conductive material. 7. Device according to one of the preceding claims, characterized in that the area presented to the outside is dad ends in a hip that has a dispensing part. 8. Device according to one of the preceding claims, characterized in that the inner edge of the second part ends outside the inner edge of the first part and outside the outer edge of this first part has a outer discharge part, and the inner edge of the electrically conductive one
Part between the inner edges of the first and the second
Part ends and connected to a high voltage source
and the outside edge of the part near the plane the outwardly presented FlXohe of the first part and
near de «Atgafcetell ends and furthermore a smock for bandaging
of the parts old a «rotating tracer song sweoks turning ORIGINAL BATHROOM of the parts are provided. 9. Device according to claim 8, characterized in that the second part unites Hipp · has that in axial seal over the plane of the first part protrudes and contains the outer dispensing part « 1υ device according to one of the preceding claims, as a result, the fact that the "erat & exercise exercise device." a rounded curse has «the tax toll and the curse · the Γ ercUiubunec dispensing device opposite this nauhsuQen presented curses connects, and the rounded riiicho fullness; Located inside the Abcabetelles. 11. Device according to claim 8 or 9, characterized by an annular rim part which is attached to the first part near its inner edge and a strut flange for coating material that is between a Source of supply for flUs & ig · * ttberzuf.smatorial and d * r nach exposed area extends outside. 12. Device according to claim 11, characterized in that that the device for connecting the parts with · 1η · α rotatable The drive member has a hub which is connected to the edge portion and which extends through the plane of the rim portion. 13. Device according to claim 1, characterized in that the dleJVorrlohtung, which covering material from a flpeleequelle on the surface presented to the outside and it in working connection with the electrically conductive parts and with deta / tgabetel can move "a" n peripheral part made of insulating material who with the 2rstlubimgsah gave «vorriohtupc rer- 9098A5 / 0086 BAD blind let «also ο a hub rigidly connected to the edge part 1st and eich extends in the axial direction to Him, Furthermore, a drive coupling old rigidly connected to the hub and arranged on a rotatable drive pulley Test 1st « and a bearing rotatably supports the coupling «whereby the The hub, the coupling, the bearing and its connecting parts consist of electrical insulating material 14. Device according to claim 12 «characterized« because the hub old connected to the edge part duroh a disk Is "which is united with the edge part by a connecting piece" that is perpendicular to the axis of rotation of the charging device and the hub is connected by connecting parts parallel to the axis of rotation. 15 · Device according to claim 13, characterized in that the ends of the coupling protrude beyond the bearing. one of its ends being connected to the hub and the other end having means about the face of the laser at a distance from the hub Engage for »fi» y »f» «around the Clutch To be held in the bearing in the axial direction. BATHROOM LOCAL 90 9845/008 6 Blank page