DE2326023A1 - METHOD AND DEVICE FOR ENAMELLING THE EDGE OF SANITARY ARTICLES - Google Patents

Description

_Dr. F. Zumstein

pata B monks

SOCISSB GEMEHAIE DE FOIBERIE Gas BO

Yerfahren and gate direction for enamelling the edge "won, sanitary articles _o

The invention relates to a "free fanren".

a gate direction for enamelling ö © s Saafies of sanitary Ir = articles such as Bafiexfanaenj, Wasolibeckea or dergl @ ieh © ao

For this article, © in Emailli®3? Irer = ·

drive known, which dry dwroh Aöfb3? ingöag of Emaill @ ° = pulper exerted on the su enaillier end en object knows _{9 which was} previously warmed to a temperature above the melting temperature of the enamel ₀ When it was preserved old the object -schmilzt the enamel and forms © inen plated _s vrelcher during the cooling d © s Segsnstands ei'iiartsto

In practice, si, efforts @ n _s Ofearflasche of the object in a close eggs Waagereohtsn lieg® »· = the position relative to the ImaillspulTer% u bringea ₉ weleheis la a layer by a Aufstaubungso ^ gan © üfgestaufet ₉ 2ob a < Sieve. The enamel grains then come old to the surface of the

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Article in contact in a direction practically perpendicular to this surface. They then instantly melt without to slide on the article in question, which is the » the thickness of the enamel layer contributes

Bs are also devices for exercising the

Process known, for example "B", which is described in the French patents 1 590 113 of April 12, 1968 and 69 31 154 of September 12, 1969 filed in the name of the applicant. " .

But the hand of the sanitary articles, especially the bathtubs, generally has a lateral one Surface, which is connected to the Kest <les edge by a rounded surface »This side surface must be in to be enameled in the same way «, as the Hest des Edge.

In practice it becomes synonymous with

enamelled the rest of the edge, but then it cannot countersink = right to the enamel powder jet ο

This creates inequalities in

the division of the enamel, increasing the quality of the produced Article affects \ firdo

The invention has he ^r first a Bmaillier% ~

drive sum subject _s which comprise the production of articles he = moglicht which nieht this Mange ^.

The erfiadüngsgemasse Yerfahren ies enameling edge of sanitary articles ,, z "B _o * bathtubs, wherein the Fähe the dusty is to be enamelled with an enamel band j, is characterized in that fall on the edge of a projecting dan on this Emaill®strom allow and allow the remaining part of this stream. deflects the lateral surface of the Ean · = des by blowing on this one gas flow directed transversely to this lateral surface ο

This bubble directs the enamel powder % \ x the

lateral surface according to a path with a velocity component ₉ perpendicular to this surface, which prevents the powder from sliding on it and ensures an even division "

According to a preferred form of exercise of the In the process, the gas flow is inflated through a das © and

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· = »3 -

the flow rate of this jet is a function of the distance between the exit of the nozzle and the surface to be enamelled regulated.

As a result of the irregularity of the outline

certain sanitary articles of the distance between the outlet of the nozzle and the au enameled surface during rotation of the article can in fact "change can then zweekmässig be ₅ x for these items the flow of gas! propelled to zoom enamelling or decrease ^ depending on whether the outlet of the nozzle is further away from the surface to be enamelled or is closer ο

The single-waisted powder grains come into contact with the article at a constant speed, which the Enamelling quality even further improved »

The invention also has an "" apparatus for

Execution of this procedure on the subject _o The gate direction has a holder for an organ for dusting up enamel and means for regulating the position of this organ in relation to the article to be enamelled ο

According to the invention, this gate direction is thereby characterized

characterized in that it has a blowing nozzle _s which is arranged opposite the holder _{2 so} that its axis intersects the perpendicular to the dusting element or passes in the vicinity thereof, as well as means for generating a gas flow in the nozzle.

The gaseous flow medium is preferred air blown into the nozzle by a fan, and the nozzle lies under the holder of the atomizer. Through this it is possible to open the protruding part of the enamel stream to redirect the lateral surface of the edge "

According to a preferred embodiment, the door arrangement has means for regulating the angular position of the nozzle opposite to the holder of the atomizing organ.

In this way, the nozzle can be brought into the appropriate position with respect to the article to be enamelled and, after the edge of this article has been enamelled, can be withdrawn ₅ , the blowing then being switched off.

According to another advantageous embodiment, the gate device has means for regulating the amount of

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gaseous fluid in puncture of the distance between the exit of the nozzle and the surface to be enamelled.

These means preferably comprise a diaphragm with an adjustable opening, which allow the speed of the enamel powder when it hits the lateral surface of the article practically constant.

The invention is explained below by way of example with reference to the drawing.

Fig. 1 shows schematically an embodiment

of the invention in its application to enamelling a bathtub.

Pig. 2 is one of FIG. 1 corresponding Larger scale plan view with parts broken away.

fig »3 is a cut of the means of regulation of the gas flow along the line IXX-III in FIG. 4 on a larger scale Hate rod *

Pig. 4 and 5 are side views of the hoisting means of FIG.

Fig. 6 shows the paths of the enamel powder or the gas stream in the vicinity of the edge to be enamelled.

The embodiment shown in Fig. 1 and 2

form points in a per se by said French patent specification 1 590 113 known way a holder for a by a sieve 5 formed dusting member. This holder includes an articulated deformable frame 1 and a rotating head 3. The frame 1 comprises a boom articulated to the rotating head 3 2 and a Yord part 4 carrying the sieve 5. The rotary head is rotatable on a base 6 about its axis X-X '.

The sieve 5 is carried by an arm 7

which a vibrator 8 is attached, but can of course other means of dusting the enamel can also be provided. A balance counterweight 9 is at the end of the extension of the boom 2 attached. The holder of the link 5 is designed so that it is always in a practically horizontal position Position remains.

According to the invention, a blow nozzle 5 is attached to the

Rotary head 3 hinged and connected to means described below for generating a gas flow in this nozzle.

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In the example described, fier zn

enamelling sanitary articles a bath tub 12 _S which is mounted horizontally on a table of adjustable position of known design j which is indicated schematically at 41 «piping? Table can rotate around a vertical axis and perform horizontal translational movements ^ like this _? that the entirety of the belt 13 of the bathtub 12 and its appearance Seitenflach® 14 passes under the sieve 5 °

The table 41 carrying the bathtub can

expediently according to .dem on the S name of the applicant on 26 = Mars French patent 69 08 838 filed in 1969 be.

The nozzle 11 isifwith a blower 15 (tigo 2)

provided and pivotable on the rotating head 5 on an approximately horizontal axis. The blower 15 is designed as a turbine _{Z 0} B _{0 ο}

The nozzle 11 is in relation to the rotary head 5

and the frame 1 so arranged ₉ that its axis X = X ⁰ intersects the vertical axis ZZ ^{8 of} the screen 5 or passes in the make of the same.

The gas blown into the nozzle is irorzug · =

be used v / air else, it can also be another jedoeh §as g _{D o} B _o ^ ₉ nitrogen without the scope of the Srfindaag to ^ eslasseno

The angular position of the Bus® 11 opposite & ®m

Frame 1 of the holder of the sieve 5 can be regulated by means of © ines Arfeeitszy «linder 18, which is arranged in the manner of a longwall © and is articulated on the one hand to the nozzle 11 and on the other hand as the base of the rotary head 3

ϊ! $ ®σιώ, the actuating rod 19 of the working cylinder 18 is extended ₉ the base 11 is in the upper position, while it is in the anterior position 11a "when the rod 19 is retracted ο with the daxgest ©! In the third example, the angle between the two narrow positions of the nozzle 11 is about 30 degrees

Means are provided for! Egelimg the daroh FIIE nozzle 11 blown out gas amount provided »piping Mitt @ l © atJaaXten an iris diaphragm 16 ₉ polygamy at the entrance eiaer line 23 czar air supply is arranged to the nozzle 11 can © ο The Öffntasg this blend by hand by a Knob 22 (fig ο 2) .ges? @ G © lt i7 © rcl @ aJ) The relevant means also contain a circular pulp flap

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24 to regulate the amount of air which is in the line 23 between the aperture 16 and the fan 15 is arranged,

In particular from Fig. 3 to 5 it can be seen? that the rotary flap 24 diametrically on a rotatable Sinstellstab

25 is attached, which is arranged transversely to the line 23.

The rotary flap 24 is on the rod 26 through

two screws 60 attached ₉ and the rod is connected by a thread 28 wound on one of its ends to a core 27 which slides in the air gap of an electromagnet 26 attached to a collar 40 of the line 23 »

The thread 28 is preferably made of synthetic =

substance, and the electromagnet 26 is connected to a power source (not shown) by connecting wires 50®

The core 27 can slide in the electromagnet 26 when this is energized, and the rod 25 some die Turn the rotary flap 24 using the connecting thread 28 »

A non-rotatable with one end of the rod 25

connected crouch 66 is by a © spiral spring 65 on ..- a Fixed stop 67 attached to line 23 is held.

The spring 65 surrounds the rod 25 on the one

Squat 66 away from the end of the same and lean on the body the line 23 by a screw 71 abs, at v ^ elcher the end 65a. the spring 65 is attached »

A circular sector 68 (FIG. 5) provided with a recess 69 is arranged opposite the cam 66 with respect to the rod 25. The sector 68 is held by a bolt 70 which passes through the recess 69 and is screwed into the wall of the line 23 is, the end 68a of the sector 68 furthest away from the fixed stop 67 serving as an adjustable stop for the cam 66 ”

To limit the rotation of the cam 66

and thus the rotary flap 24 it is sufficient to unscrew the bolt 70 and rotate the sector 68 while approaching the To bring the end 68a of the crouch 66 into the desired position.

From Fig _o 5 it can be seen that it is so possible

- the rotation of the Eoekens 66 to an angle of at most

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90 & rad, this latter value being the full one Closure of the line 23 by the rotary flap 24 corresponds to »

In the example shown, the has

Edge of the bathtub 12 has a side roof 14 »each width about 1 to 2 cm old depending on the type of bathtub

The distance between this surface 14 and the

The outlet 21 of the nozzle 11 'remains constant when the bath tub 12 is moved j which corresponds to a translational movement along its largest side, but this distance decreases when the bathtub begins to rotate _{9 to} bring one end vertically under the sieve 5 »

When the bathtub has rotated 45 degrees,

if it assumes the position 12a (I ¹ Ig ₀ 2). As can be seen, the surface of the sand 13a lying under the sieve 5 is then larger, and the corresponding lateral pools 14a are considerably closer to the nozzle 11.

Around. to take this change into account

the sieve 5 in synchronism up to the position 5a by hand-operated or mechanical means withdrawn so that those to be enamelled Surfaces remain exactly vertically under the sieve "

According to a feature of the invention, it is provided to change the amount of air blown out through the nozzle 11 in the puncture of the distance between the outlet opening of the nozzle and the surface 14 to be enamelled, in the same direction as this distance. This control can be done manually or preferably automatically be made "It is then provided that the programming unit 42 ₉ \ tfelche in per se known manner, the respective movements of the bathtub supporting table 41 and the frame 1 controls, also controls the excitation of the electromagnet 26th These compounds are shown schematically in Pig. 1 and 2 indicated by dash-dotted lines emanating from the unit 42.

With this device, the method according to the invention is carried out as follows:

Before the start of the mailing process, the

303883/0 92 3.

Rod 19 of the working cylinder 18 is retracted, the nozzle 11 is located is in the lower position 11a, and the fan 15 is at rest »

The working cylinder 18 is then actuated,

around the nozzle 11 by rotating about 30 degrees around the axis 17 to be brought into the operating position »Then the aperture of the aperture 16 is manually adjusted to the appropriate position by means of the button 22 Value set. Since the electromagnet 26 is not energized, the rotary flap 24 is parallel to the axis of the line 23, i.e. in the position of the greatest flow rate »

Thereupon one gives the bathtub 12 one

its larger side parallel horizontal translational movement and at the same time let the hand 13 © inen Eiaaillestrom A (Pig · 6), which is discharged from the sieve 5 in such a way that it is opposite the vertical on the side surface 14 of the edge 13 protrudes to the outside of the bathtub. Furthermore, the blower 15 put into operation «.

Me air is through the aperture 16 over the

line 23 sucked and then through the nozzle 11 on the enamel stream A blown.

The gas flow B directed transversely to the lateral roof 14 directs the path of the protruding part A ^ of the enamel flow to this surface 14 ui. The enamel powder therefore reaches this surface at a speed the horizontal component of which is considerable «

When the bathtub starts its rotation, around

Bringing one of the ends under the sieve 5 energizes the control unit 42 the electromagnet 26s The part 27 is then moved, the rod 25 is displaced in. UmdrehBng} and the rotary flap 24 partially closes the line 23, whereby its rotation is limited by the controllable sector 68.

This rotation reduces that of the nozzle 11

in the direction of the lateral surface 14a of the sand 13a Air volume.

Enamelling one end of the bathtub 12

is ended after rotating it 180 degrees. The bathtub 12 then resumes a translational movement parallel to its larger sides, and that of the second large one

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Page passes under the sieve 5 o

The control program interrupts the excitation

of the electromagnet 26 _s and the spiral spring 65 leads the rotary flap 24 back to its starting position ⁰ it is blown out © quantity then goes back to its maximum value

The above gates are repeated ₉ when the bathtub 12 brings its far end under the sieve 5 ₀

The opening of the diaphragm 16 remains! Smailling the entire edge of the bathtub constant »

for distances between the output 21 of the Dfis ©

11 and the area to be enamelled 14 between 50 and 20 om can see the air volume z »Bo of 200 dm in the minute © during the Enamelling the large sides of the bathtub to 100 da in d @ r Change the minute when enamelling their ends, where you can see them Air waves rolled three meters or one meter every second be"

furthermore, with a bath tub, Pora

The upper part of the exit 21 of the base 11 lies about 55 mm against the sieve 5 and 115 mm above the level of the horizontal section 13 _o

The issued © Bmaill'emeage is' in itself

As is known, through the Ruttelirorriohtang 8, you can see in the example described change from 10 kg in the minute © at the beginning of the enamelling to 3 kg in the minute © at the end of the enamelling, the vibration frequency being smooth from about 2000 goes to 500 per minute »

The on the edge of the article by the method according to the invention and the device according to the invention The smaille coating applied has thanks to the uniformity the enamel edition has a very even thickness over the entire outline of the article.

The device according to the invention thus enables the manufacture of sanitary articles of the highest quality. Furthermore, it only requires the use of proportional cheap means thanks to the simplicity of the procedure and the possibility of doing it automatically by programming.

The invention can of course be modified

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will. In this way the amount of air can be kept constant during enamelling it was held, for which it is sufficient «to switch off the electromagnet 26, so that the rotary flap 24 remains in boo. This variation is for articles to be enamelled with a regular outline Interesting"

One can also use the rotary flap 24 and its controls by means of an electric motor or an electromagnet ! Replace control of aperture 16 * This can be done automatically by a program in synchronism with the movements of the one to be enamelled Article controlled.

Pure bathtubs or articles with tangled

IOrmen can adjust the angular position of the nozzle 11 by one with the movements of the article synchronized program are controlled so that their output 21 at a constant level above the to be enamelled is held »

The working cylinder 18 for setting the

Position of the nozzle 11 can be carried out by a system known per se Tie rods that connect the nozzle 11 to the rotating head 3 are replaced «If the horizontal displacements of the nozzle 11 be controlled by the movements of the frame 1 so that the distance between the exit opening of the nozzle and the surface 14 of the article to be enamelled remains constant, the Air volume can also be kept constant »

The nozzle 11 can be on a stand-alone

Holder are attached, e.g. one of the holder of the organ for dusting the enamel independent carriage "

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Claims (1)

Claims 1 ο) method for enamelling the edge of sanitary articles ₉ ZoB _o bathtubs _s "in which the property of the edge to be enamelled is dusted with enamel, characterized in that one lets a flow of enamel protruding over this fall on the hand, and that one the protruding part of this stream is diverted to the lateral level of the sand by blowing a gas stream onto it, which is directed transversely to this lateral roof 2o) Method according to claim 1, in which the gas stream is inflated through a nozzle (11), characterized in ;, that the flow rate of the gas flow is working the distance between the outlet of the nozzle (11) and the one to be enamelled Plan is regulated ο 3 °) "Method according to claim 2 _S characterized in that s> if the inflated gas stream is air and the article to be enamelled is a Badex-sranne, _p the amount of air is from 100 to 200 dm / min and its speed is from 1 to 3 m / s is changed, whereby the distance between the outlet of the nozzle and the flat to be enamelled changed to about 50 cm in accordance with ron 20 4o) device on the execution of the procedure naeli one of the claims 1 Mb 3 with a holder (1, 3) for an organ (5) on stau tang, the enamel and means for regulating the position of this organ (5) " in Besug the au enameled article, characterized by a blast nozzle (11) which is disposed opposite the holder (I ₉ 3) so ₀ that their Achs® the perpendicular on the Aafstaubungsorgaa (5) eehneidet or, in the Kalie same YorTbeigohtj and by means of generating a gas flow iß öe ^ iSs © (11) ο 5o)? © r3? Iehtiaag according to address 4 _9, characterized in that boi Äiasrustöng öer Dase (11) sit an air blower (15) means vorg © s © ii © a SiM ₂ to di © Laftm @ ag © as a function of the distance between the Ämsgaag d @ r Bis® (11) eaö to anchor the Plack © to be enamelled * 6o) Device according to claim 5 _S, characterized in that the means for regulating the amount of air comprise an adjustable diaphragm (16), 309883/0926 7 «) Device according to claim 6, characterized by an electric motor or an electromagnet (26) for regulating the diaphragm (16) and means for automatic control of the motor or the electromagnet (26) in synchronism with the movements of the article to be enamelled * 8.) Device according to claim 6, in which the opening of the diaphragm (16) is kept constant, marked by a rotary flap (24) for controlling the amount of air, which is regulated by an electromagnet (26), which is automatic is controlled in synchronism with the movements of the article to be enamelled 9.) Device according to claim 6, characterized by means for regulating the diaphragm (16) by hand 10.) Device according to one of claims 4 to 9, characterized in that the nozzle (11) around a horizontal Axis of the holder (3) of the organ (5) for dusting enamel is pivotable. 11.) Device according to one of claims 4 to 9> characterized in that the nozzle (11) on an independent Holder is attached, which is independent of the holder (1, 3) of the organ (5) for dusting enamel. 12.) Device according to one of claims 4 to 11, characterized by means for regulating the angular position the nozzle (11) opposite the holder (1, 3) of the atomizing element (5). 13.) Device according to claim 10 or 12, in which the holder of the organ (5) for dusting enamel a rotating head (3) and an articulated deformable frame (1) attached thereto, the rotating head comprising the nozzle (11), characterized in that the means for adjusting the angular position of the nozzle (11) are attached to the rotating head (3) attached working cylinder (18) included. 14.) Device according to claim 12, characterized by means of automatic control of the angular position of the nozzle (11) in synchronism with the movements of the enamel to be enamelled Article. 309883/0928