DE1646106C3 - Spray gun, especially for thick coating agents - Google Patents

Description

Sealing surface encounters, according to it, also on a large one ren area is pressed onto the contact surface. over

which he had previously with his order R _b_ s .--

35 leads was. This Glcithcwci'un. has the advantage that you sealing surface of impurities K> "■

The Lrfindun »refers to a spray gun. so that the following Diehtberti.he uey ι-especially for granular and viscous oil, he / ugs- a ge ¹ -luherle sealing surface anheueimittel, with emem by means of a pull lever against a By the invention it is now possible «eworiL. i

Spring back / iehbarcii Verüilstücks. with a jerk 40 /. B Cleaning work fast and clean .. 'is / ufiihien contemporary Schuller, whose front end has the C'ber cover without the elaborate T'.inspori ucs Put / m.iicri.ii ·· releases medium and on which a house-proof seal to the Aibeitsot Yes over hoses you necessary) materials can be supplied. Mortar too

Spray guns are already in many designs can work with the spray gun according to the invention! known. Especially Ki spray guns for thick matter, 45 stole are cheaper to run without the skirt such as sdialldanij! ende materials. Interfloor the mortar at the sealing and opening of the Protective agents, bituminous non-plastic materials. Having to fear fuel / pistol during work breaks it is necessary to find a configuration that is as handy and convenient as possible

to create structurally simple execution that is easy: will tiarin μι-see that the funnel-shaped you ^{1 is} to be cleaned and, according to Möghchktet only from behavior 5 ^ nian-chetie to the front end in a similarly small amount of fine lines is tnchterfönn. jien outlet flange tortsei / t. Through this

In the case of a known spray gun, the pressure result is: si-: η a completely flat transition from / v ,! Uft through the handle into the spray / pistol housing pe directs the spreading material from the pool to the rjie. The thick matter is in front of the handle Ix-DusenfLielie. in order to achieve an even distribution of the firt'llielien housing part and after actuation 55 material to achieve the injection

This construction has the disadvantage that the dune provides. that the Ausiritisflansch with letting go of the finger pull dei thick matter flow flour see in the radial direction extending 1 Dusenfla.iscli is braked immediately, so that! after the injection molding and the seal is formed as one component. tlas Dicksloff into the open pelanyl. ui-Il-Ik-γ an Jcr - \ tisf ^r i't- · Go mute! ·· of a fastening - ^ - ini? - on the housing. J. ■ opening of the spray gun .mtroi knei and diesi vet spray gun atiswechseli Um .muehiaiht lsi 'in,

stuffs also allows e ^ du kinit ^ 'zi.Tte Λ ιηί Spritzpi ^{l |} nle can dulii'il -ι < .1 u ί Ίι / erlei-i iru. _L -i

slailung der Spril / t'ivtoli nith · 1Ι.1ΙΊ I an-n die p! si ,, i remiu 'become

/ experience b / A. clean κ <μικ 1 It is not possible to use wi \ <\ ·. ·· ■ c! .i ·. »F.- - S <| uil:> mi.

1 ·, is also si hon v. rce ■ lii.i. ·· π wo'.In.-11 1. 65 axial D: ihtfluch .oty s.iiiu · ii Hi in · S e'l. "Close and Open iie, Mi, Ί.ιί h / u dei pressure dis valve nieh Beeiiiln'ii 1. il.-s ΝρΓί / .οι ^ .ιι-, ι ^

luftleitunji two petrenni. 1 · ■ · "iselilnssn · mitein.imli, ι«, t ΰ: 1 ippeiulu liiunj- -n.; UKi Ji. .X .ik!>, Connected pistons .ir; / r \ »ei Ii doei ·; n 'el · ·· !! ll.iehi and hefre (in ¹ · ^. ml · .it''id. · ι. \ 1 - _t r ,, i

³ 4

before it faces the shoulder, which is the radial sealing flange IS i.e. the nozzle insert 32

tungstULhc works, anhegt. As a result, the seals are at an angle of inclination just like the pear-shaped one

lungs or Uusenteile, soft with the üm _{2 ebun 2} s part of the seal 25. so that a uniform ".:,

putty come into contact, at the end of the flat exit surface is formed

The spraying process is cleaned automatically so that there is no risk of damage

clogging and jamming of the nozzle parts is now fcU-etider

It is also advantageous that the \ enulstuek U mi ₂ e ~ according to the position according to Fi ₂ . 1 of the finger

is formed Z-shaped in longitudinal section. As a result, deduct2 Γη of the Rk indicated by the arrow 42: ..-

If the device on the outside of the valve piece is actuated, the piston II

a-uale and radial sealing surfaces, which are indicated by the self-10 connection cues in the direction of the

rem.-supply process after completion of the spraying Pfe: les 43 shifted and initially takes the in

to be granted F - g. 2 position shown. In this position

Further advantages of the invention are; m fol- is a bore 18 formed in the hollow piston 12 ″

Send some Ausführuiusbeispieien near ER- s _O weir shifted to the right, "was that it" with

ijuiert and shown in the drawings:, t is shows 15 the ignition space 17 and the channel 13 in connection

Mg. 1 -ts. ■> in partial section view · ^: ■ ** · ■ Pistol is standing while the lip seal 25 is still

. • umhpnt / er, vonrjicksioffen. mer'die thick matter line 14 keep closed. the

I-ig. ·, Up to 6 ächmtiansiehter „■.; E to the compressed air now comes from the channel 13 and

Spines of lacquer or paint. the Zvlmderraum 17 via the hole 18 in the

In the figures, the hollow space 44 of the hollow piston 12 is shown because of 20 and then occurs.

: „: Le with the same function with the same reference against cW arrows. S at the nozzle opening 23

.-nien vci .eben. out. Only with another move de. KoI

The new spray gun is in F 1 g I in the shield - be ... in the direction de, arrow 43 then results in the in

• J.uiig. m Fig. 2 in a communication and: n F t g. 3 position shown, in which, the lips

1 ig .. 'shown in the opening section. Vr wc- 25 seal 25 "has detached from the nozzle 9, so that the / u

niKher lcil is the housing! with the r u.gerjb- splashing Matenai through the ring-

ι.μ- and the handle 10. Inside the Gehiui- ötfnung over the nozzle insert / 31 can emerge

•.-1 Μ a piston II. 12 displaceably mounted When the spray gun is switched off, the volume runs

V do shifting takes place with the finger movement in reverse order. First, de;

. ', ug. In Xerbinc'ung there are rules \ erbindungsge- 30 Spritzmatenalsirom abrenw and the supply line

.mgc. Yes, for the sake of laughter, only at the end of the served ”, and only then does the Drueklufl / utuhr

K 'bens m.t 3 indicated and blocked off in Gehau-e 1 in. In the closed position, the Boh ■

radio 26 is articulated _run ., jg occupy such a position. ' that noi.li

The front of the KoIt-Jn has a hollow piston 12 and a small gap for the pressure to pass through:

behind, a piston cli.itt 35 free Weiht Damn is prevented that -m rest / u

(I on Im the piston skirt 1! Is in the Ciehuu ».1 s: .md of the pistol through the nozzle opening 23 de

tin Zv Inn aum 17, in which a D.-e 9 about in Pieünchiunn 8 Selimut / teHehen m

Helical spring 15 is born. You can see them on one side of the H-hirjum 44 of the hollow piston U.

May be. against the piston surface 16 Jes Flülilkolhcn- The nozzle 9 the /. B. by Aiüschraubc. ! calibrate

12 and on the other side against the cylinder pressure 40 ·. H.'V ilben 12 fasten: will; ¹ can has in:

wall 19 abstut / l. That from the hmieren B. -reich d.- L ^ i gs _Sl .hi .i: considered a 'Z-iorrrnge Gesta.:. m-

Housing protruding end of the piston cylinder 11 at the lower end is through its end area

>: provided with a thread: 4, on which a Mui die - \ bhiegung naeti inside the conical Diisenol! ·

U · 5 .uifgesehraub! is through more otL- less voltage 23 forms. The unlere Scheiw ¹ I 36 in Fi g. . ^; bi-

white. ^ Unfolding the nut 5 can cine be 45 de: the radial wiik-ame DuhnLicüc. ..: your own

Correct position of the piston 11. 12 inside the web 34 the axially effective sealing surface proper. At the

Cieliausesl and thus / wangbark also the you: - Sealing slides / utuchsi the lip seal 25 11,

drutk eiiigestc'll be, on the noui later, nnngtormijie touch. without resistance / u

jaitiiien will 'form over the front. / \! Indian "1 eil 36 de:

The front end of the hollow piston 12 is -.- mc 50 nozzle 9 and cleans it in the process.

You-e 9 hcfestigl. whose nozzle opening with 23 iv- those S ₁ nt / materi.illcilehen StöLit the end face 35

/ is called. dei Lipp -.- ndieniuns: 25 d.mn against the tarpaulin victory

F >> e compressed air flows through a handle in the handle IO 34. results from the pressure of the coil spring

Lorgesehercn channel 13 in the direction of arrow 6 in 15 L, id the conical shape of the lip seal 25

the control room 17 and can be used in the in I ig. I ge 55 a k.u'i component. WtL u the lip seal

/ eigien position of doa no further Since the Fi: i- 25 against both the victory 34 and against the / \ -

| ur.i> vug2 not activated i <t. you can file the screw sleeve (lower leg 36) of the nozzle ')

• I ·. ·! 15 act fully on the piston ring surface 16 r.cli !. Thereby only security | Cglie! Ies Austre

and presses the piston against the direction of the arrow.

with its nozzle 9 against an I.ippciidithiung 25. avoided the 60.

CMMt-n Π.ϊπν-h 27 .mfv., 1 i D ₁₁ Ji.; Ji; s; ., "Ji.!,. / I, "■ MUiv.heite 24 di-Ji:.: Die DickstoffleituiiL '14

fu '-U Muni.- 14 lur iK-ii / 1 · \ ei-pr /end.n IVk:. i'.nut> -.- r dt m hollow ols 12 from \: i the grill! (

dei 11; Kv'ilunt:.; E f'ieres7 / utictiihi: Wn _1,. > _t , J \ ns.-n | _u Hstut / en ^f u 'die IViKkIuI' u., d d ..

^s P ^crr; ·. · '' I '/ imkL M. !! en. ·.! xoi see those of the I ml.icr

D: t I .pi '.- ndictiiiii j 25 vereiii · ¹ > u I-, / tu i) »^ 5 lic. li.iiher liitlil iia'L'csttlli are I s K.mn .ιικίι π · ι

sonis., -. um · is · in · - -rm · "IKhHi n ·" .ms.: ·: *. ... ·! Vk.nmter VVuse a controller u, i du · Drutklu ::

CHierii I ins.'ill.iDs. . Jl ·, ,,,. ^ Ι, τ. DuseiK - ¹ , · ιι.: Ιη · \ irgeschcn -ein.

/ t> 32 Iv. : eM i ^ t [) · ·. | ... -! the.! \ i Mi · e no I c ^ Nleiii .iil · 45 ^; I. I) '^ e; ie, iis.i ;, ^ Z

in the front part of the housing 1 bcffstigt. The hollow piston 12 runs in the guide bearing 20 and the piston shaft 11 runs in the guide bearing 21

4 to 6, the invention will now be explained on a paint or paint spray gun herds. Here, too, the piston cliafl il mi! provided with a thread 4 on which a nut 5 is screwed. The cylinder space 17 is closed to the rear, for example, by a closure 54. the msi forms a cylindrical chamber 40 in the hollow piston 41. In the chamber 40, a nozzle needle 29 with a collar 37 is slidably mounted. In addition, in the chamber 40 there is also another 39. A sealing washer 53 is integrally formed on the piston shaft 11. whose sealing surface 52: r. closed state against a sealing surface 51 of a t ^; inschnutun§: 50 presses in the housing. In this embodiment, the paint emerges in the center 56 of the nozzle. while the air comes out of the gun in a ring. The nozzle needle 29 interacts with its front end with the nozzle 33 provided for the respective colorant. The push-on cap 31 is fastened to the housing 1 with a clamping ring 30, so that an annular space 48 is formed. The process during spraying is as follows: The compressed air is directed again through the channel 13 in the direction of the S'feiies * in the ZyImdernium 17, where it in the closed position presses against the sealing washer 53 and can no longer flow. If, on the other hand, the piston shaft i I is displaced in the direction indicated by the part 43 by actuating the finger trigger 2, it assumes the central position according to FIG. so the compressed air comes out of the channel 13 and the cylinder mum 17 via the ring chamber IKu in another im

ίο Gcltüu «« I lying intermediate chamber 46, of which mc flows into the annular space 48 via a channel 47 and from there in the direction of the arrow. 49 exit In dct m However, the actual middle position is the nozzle Einsät / 33 iur den Fär- b / w I aekaiisiritt iiocii pt closed because the spring 39, the nozzle needle 29 mnh in ^ closing holds. Frst when the piston is about to echo 11 also partly in the Sic'.iunp shown in I-1g is pushed, the nozzle needle 29 is inilgi— -m men. and the color can be in the center 56 from the

oo showering vuf / 33 to exit. Thus, the emerging oil is located directly in a pressure stream surrounding it I work and only then the compressed air outlet is closed
chamber 46 seals

1 sheet of drawings

Claims (5)

there are still difficulties in sealing the patent claims: feed space for the material to be sprayed. Since the seal is shaped like a line 1. Spray gun, especially for granular or agitated surfaces to be sealed thick coating agent, with a means of 5, there is a risk that the granular or a pulling lever against a spring retractable rough material to be injected. Leaks Valve piece, with a rear; Shoulders occur when there are small grains between the the front end of which releases the coating agent. Slide the seal. But it is sufficient for the thick and on which a housing seal rests. Just a few drops of water seep through. characterized in that the lip ίο to eräspendichtung the mass still present in the room (25) than to the front end and thereby make the pistol inaccessible. Nisch widening funnel is formed, the object of the present invention is to you. with the valve closed with its rear listed disadvantages to avoid and a fuel / edge on the shoulder (34). "To create a pistol with which even granular fuel 2. Spray gun according to claim I. can be processed thereby, after spraying indicates that the funnel-shaped Dichtman- the seal through a self-cleaning effect shy away from the front end in a likewise original nozzle parts of adhering especially granules funnel-shaped outlet flange (28) continues. like freeing material! in order to thereby bev 3. Spray gun according to claim 2. characterized, ge sere sealing effect? U errrerchen and the Austnt! indicates that the Austriusflamch (28) mi! 20 vstn more fuel / maiena! after spraying / 1; prevent one extending in the radial direction. The nozzle flange (22) and the seal (25) as a dice task is the one in a spray gun Component trained ι *! that by means of a fastening «, described by the fact that a gungsringes (45) on the housing (I) of the Sprit pi- lip seal as / around the front end conical stole interchangeably attached is ₃₅ ν festering funnel is formed. the at closed 4. Spray gun according to claim I. characterized by its rear edge on a Vmtil that the shoulder (3 * ) rests against an axial shoulder. Sealing surface (36) is connected upstream. Ji more about the i-infaJie - £ _s is -one ... 5. Spray gun according to claims 1 and 4, pressing a conventional sealing surface against e .n, characterized in that the valve piece (9) 30 sealing ring, but the dichuingsii · slides / \\ is designed in a Z-shape in longitudinal section. next over a sealing surface until it op ... the /wei.e