DE1577654A1 - Device for spraying on liquid application agents - Google Patents

Description

R.No. Gi 154

Sept. 30, 1966 Hu-Ha

Annex to the patent and
Miter Smoke Pattern Auxiliary Registration

ROBEEO! BOSCH HAUSGERÄTE GMBH, Giengen, Rolaert-Bosch-Strasse

Device for spraying liquids Application funds

Additional application for patent ............. Patent application B 78 257 It / 75 a

The invention relates to a device for spraying

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of liquid application agents, in particular of paints, to the Surface of objects to be coated with the application agent, such as refrigerator housings or the like, in an electrostatic Field, wherein the liquid application means at least two arranged at a distance from one another and equiaxed to one another, in operation at the same time supplied to rotating spray disks and thrown off in a foggy manner from their circular peripheral edge and wherein furthermore the lower spray disk is arranged on a vertical tube encircling the disk is, through which the application agent is advantageous on the underside the spray disc is directed, while the upper spray disc at the free end of a centrally arranged funnel-shaped Container is arranged, in the section with the smallest inner diameter, the application agent is fed through a pipe will, 'according to patent

(Patent application B 78 257 Ib / 75 a).

An advantageous further development of the inventive concept lies in that the surfaces of the spray disc are inclined outwards to one another.

This ensures that the two sprays are close to one another come or merge, whereby it reached next to one jointless application zone is possible to spray two-component application agent. Another major advantage is that by using different spray disks with different distance between the spray edges, the system can be used in each case Can adjust spray means to achieve that

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Particles of mist sprayed off the two panes because of their same electrical charge exert a repulsive effect on one another, in the most favorable for their mixture of durations Distance from each other are thrown from the panes »

In the drawing, the subject matter of the invention is based on two exemplary embodiments illustrated. Show it:

Fig. 1 is an essentially schematically represented view a system for spraying paint on the walls of Refrigerator housings that are moved around the working area of the device by a conveyor,

FIG. 2 shows a section through two corresponding to the example according to FIG. 1 Spray disks inclined to one another, the spray edges of which have a small distance from one another, on a larger scale than in FIGS

Fig. 3 as a second embodiment, a section through two Spray disks inclined towards one another and converge to form a common spray edge.

In the system according to FIG. 1, a hollow shaft T2 is at the lower end. which can be driven by a motor (not shown) via a transmission housed in a housing 14, two spray disks 4 ₃ 13 are arranged, the surfaces of which extend outwardly inclined to one another. The motor with the gear housing 14 and the spray disks 4, 13 can be moved back and forth in its longitudinal direction in its longitudinal direction by a drive device (not shown). In doing so, the spray terminals 4 and 13 are drawn between the drawn

neten and the position indicated by dash-dotted lines moved back and forth. . .

The hollow shaft 12 which drives the spray disks 4 and 13 is. . with a flange tube 15 rotatably mounted in the gear housing 14 tied together. The upper spray disk 4 and the hollow shaft 12 consist of one piece, on which between the disk 4 and the hollow shaft a funnel is formed, the depth of which should be at least 10 mm. The lower spray disk 13 is on this common component attached. > ■ -

The paint is supplied for the upper spray disc via a pipe 10, which opens into the funnel 3 and for the lower spray disk via a tube 17 'which ends in the hollow shaft 12.

In the system according to FIG. 1, for example, refrigerator housings 7 are provided with a lacquer coating. These housings 7 are suspended with rollers 8 on a support rail 6 and are through a traction mechanism (not shown) drove to arch around the spray » hungsanlage with the two disks 4 and 13 moved around. Below each of the rollers 8 has a rotating device 9; that the housing 7 can be rotated at certain time intervals as they pass through the system.

The spraying of the application agent can be carried out in a manner known per se take place in an electrostatic field. For this purpose, the spray disks 4, 13 are attached to one pole and the parts 7 to be sprayed connected to the other pole of a high-voltage direct current source

^sen 909885/0784

"5"

In the design and arrangement of the discs 4 and 13 of FIG = _r 2 coincident with the embodiment of FIG. 1, the upper spray disk 4 is inclined against the lower, horizontal trained spray disc 13. The distance A between the spray carts of the two panes should, for example, not be more than 20 mm »

The structure of the spray device according to FIG. 3 is similar to that of Fig. 2. However, the inclination of the upper spray disc is in Fig. 3 slightly stronger than in Fig. 2 or both discs are in one arranged closer to each other, so that the two spray disks touch at their outer edge and in a single Spray edge leak.

Due to the relatively small distance between the spray edges and the fact that the two spray disks are in a single spray edge run out is a good mixing of the application means and a even distribution of the same achieved. It can therefore also Two-component paints are sprayed, with the two components come together only when or immediately after spraying off the panes. .

The distance between the spray edges of the two discs can be the The spraying agent to be used in each case can be adapted »It can both discs may also be inclined towards one another, with the upper one Disk 4 a downward slope of 10 ° and the lower disk 13 could have an upward slope of 5 °. One or both discs

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could also be designed so that only the spraying agent conveying surface is inclined towards the other disc, while the other surface is inclined horizontally or otherwise can run.

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Claims (4)

Claims . (1. J device for spraying liquid application agents, especially paints, onto the surface of objects to be coated with the application agent, such as refrigerator housings or the like, in an electrostatic field, the liquid application agent being at least two spaced apart and equiaxed to one another, In operation, simultaneously circulating spray disks are fed and thrown off in a fog-shaped manner from their circular peripheral edge, and the lower spray disk is also arranged on a vertical tube encircling the disk, through which the application agent is advantageously directed onto the underside of the spray disk, while the upper spray disk is on the The free end of a centrally arranged funnel-shaped container is arranged, in whose section with the smallest inner diameter the application agent is fed through a (- pipe, according to patent ........... «· Patent application B-78 257 Ib / 75 a), characterized. that the spray disk surfaces run outwardly inclined to one another. 2. Apparatus according to claim 1, characterized in that the distance (A) between the spray edges of the two discs (4, ¹ 3) is not more than 20 mm. 909885/0 7 84 ⁸ " 3. Apparatus according to claim 1 or 2, dadurcn, - eKent ^ ο rejects that the two spray disks (4, 13) come together to form one Spray edge converge. 4. Device according to one of the preceding Anεprüfhu, thereby marked that the inner height of the tr ichu ^ -rfürni ^ c-n Container "(3)" that carries the upper spray disc, niiriaesten " 10 mm ägt. Jl 909885/0784 BATHROOM ORIGINAL