DE7319300U - Device for enamelling the edge of a sanitary object - Google Patents

Description

Dr. P. Zumtteln atn .. Dr. I. Attmann Dr. R. Ko «nin« h «rg * r ■ Olpl .. Phyi. R. HolifMU «r DIpI.-Ing. i ^:. KU> β ·· 1 ·· η · Dr. P, Zumitoln Jun.

Pttentanwlltt β MONchin 2, lriuhauietral * 4.

SOCIETE GENERALE DS PONOERIZ. Cas BO

Method and apparatus for enamelling the strip of sanitary articles

The invention relates to a method and

a device for enamelling the end of sanitary articles, such as bathtubs, sinks or the like

For these articles, an enamelling

drive known which dry by applying enamel powder on the object to be enamelled, which Before that, it is higher than the melting temperature of the enamel Eecperatur was heated. If there is a contact with the enamel melts on the object and forms a coating which hardens as the object cools down.

In practice, efforts are made to bring the surface of the object into a position close to the horizontal in relation to the Eaaille powder su, which is dusted on in one layer by a dusting device, eg a sieve. The enamel grains then come with the surface dea

7319300 10/23/75

η ?;

Article »in a practically ¹ ga'eWeW surface vertical //, Kihtun in touch you then melt instantaneously without

Kichtun «in touch. They then instantly melt without to smooth out the article in question, which leads to comparison contributes to the thickness of the enamel layer

There are also gate directions for exercising the

Process known, e.g. in the French patents 1 $ 90 113 of April 12, 1968 and Oj jti 1 i? 4 v «m ic · ββρΐο &'οβϊ- 1969 filed in the name of the applicant

But now the edge of the sanitary articles » in particular the bathtubs, generally a side surface, which with the best of the edge by a rounded one Surface is connected. This side flat muse in enameled in the same way as the bed of the Edge.

In practice it will pit at the same time

enamelled to the best of the band, but then it cannot be vertical to be brought to the enamel powder jet "

This creates irregularities in

the distribution of the enamel, increasing the quality of the produced Article is affected,

Dis Srf i & dssg h & t first sis Saaillisrver · * ·

drive to the object that enables the production of articles, which do not have this tendency

The inventive method for enamelling the edge of sanitary articles, e.g. bathtubs, where the vicinity of the band to be enamelled is dusted with enamel, is characterized by the fact that one is on the band over this protruding. Drop the enamel stream and the protruding Part of this stream is diverted to the side surface of the edge by placing it across this side Flat directed gas stream blast.

This bubble directs the enamel powder to the side surface of a path with a path to that surface vertical speed component, which means that the Powder prevents this and an even distribution guaranteed "

According to a preferred form of exercise de Procedure, the gas stream is inflated through a nozzle, and

7319300 10/23/75

! ill

the amount of flow of this jet is given in puncture dea dignity 2 to the exit of the nozzle and the surface to be enamelled regulated "

Due to the irregularity of the outline

Certain sanitary articles can actually wipe out the distance the exit of the Suse and the surface to be enamelled change during rotation of the article · It can then be expedient be, for these articles the Gasetüroia Wahread des Süaillierone to enlarge or reduce, depending on whether the off - = - passage of the nozzle further away from the surface to be enamelled is or this is closer.

The enamel powder grains come like this with the article in contact at a constant speed, which further improves the quality of the enamel.

The invention also has an apparatus for Exercise of this procedure is the subject. The device has a holder for an organ for dilation of enamel and Kittel to regulate the position of these organs vis-à-vis dea enamelling article »

This performance is thus made esfinassgsgesisee characterized in that it has a * blow nozzle, which is arranged opposite the holder so that its axis is that of the atomizing organ Vertical cuts or passes close to it, and means for generating a gas stream in ier nozzle.

The gaseous flow agent is preferred air blown into the nozzle by a fan, and the Suse lies under the salt of the Aufstaubwngsorgane · This it is possible »to stream the protruding part of the enamel to redirect the lateral surface of the belt.

According to a preferred embodiment has the device Kittel for regulating the angular position of the nozzle towards the holder of the storage system

In this way, the nozzle can be brought into the appropriate position in relation to the article to be enamelled and afterwards the enamelling of the band of this article will be withdrawn » whereby the blue is turned off.

fiemass another advantageous execution fora the device has means for regulating the amount of

7319300 10/23/75

gaseous fluid; ^ ^ injTbiiktijon 'di »e, distances between deta output of the nozzle and the surface to be enamelled a-af.

This means preferably comprises a diaphragm with an adjustable opening, which allow the speed of the enamel powder when striking oils s eitliche surface of the article to maintain practically constant.

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

fig. 1 shows schematically an execution rona

of the invention in its application to enamelling a bathtub ·

FIG. 2 is a larger-scale plan view corresponding to FIG. 1, with parts broken away.

Fig. 3 is a section of the means for regulating the gas flow along the line IH-III of FIG. 4 on a larger scale em hatred.

FIGS. 4 and 5 are side views of the control means of FIG. 3.

Fig. 6 shows the paths of the enamel powder or dee Gaeströffis in the saw of the tape to be enamelled.

The embodiment shown in Pig, 1 and 2 has, in a manner known per se from the aforementioned French patent specification 1 590 113, a holder for an accumulation chamber formed by a sieve 5. This holder comprises an articulated, deformable frame 1 and a rotating head 3 «. The frame 1 includes a boom 2 articulated to the rotating head 3 and a front part 4 carrying the screen 5. The rotating head can be rotated on a base 6 about its axis ZZ ^1.

The sieve 5 is carried by an arm 7

which a vibrating device 8 is attached, but can of course other means of dusting the enamel were also provided. will. 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 this is constantly in a practically horizontal position Position remains.

Invention Geaaoe is a nozzle 5 to the

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

7319300 10/23/75

In the bascarietensn example, the to -J

fitted sanitary articles a bathtub 12 which is horizontal is mounted on a table of adjustable position of known design, which is indicated schematically at 41.Dieaer Table can. Perform rotations about a vertical axis and horizontal translational movements in such a way that the whole of the edge 13 of the bathtub 12 and its ausBeren side surface 14 passes under the sieve 5.

The table 41 carrying the bathtub can

expediently according to the name of the applicant on March 26th French patent 69 08 838 filed in 1969 be.

The nozzle 11 is equipped with a fan 15 (Jig. 2)

provided and on the rotary head 3 as iron about horizontal axis 1? pivotable. The Seblaae 15 is β.B, designed as a turbine.

The nozzle 11 is in relation to the rotary head 3

and the frame 1 arranged in such a way that its axis TT ¹ intersects the vertical axis ZZ * of the screen 5 or passes at the same height.

The gas blown into the nozzle is precautionary

v isθ air, but another gas »e.g. nitrogen, can be used without abandoning the suspicion of inventing.

The angular position of the nozzle 11 relative to the

Frame 1 of the holder of the screen 5 is by means of a working cylinder 8 18 adjustable, which is arranged in the manner of a strut and is articulated on the one hand to the nozzle 11 and on the other hand to the base of the rotary head 3.

When the actuating rod 19 of the working cylinder β 18 is extended, the nozzle 11 is in the upper position, while it is in the lower position 11a when the rod 19 is retracted. In the example shown, the angle between the two limit positions & ix of the nozzle 11 is approximately 30 degrees.

Ss are means of regulating the flow through the nozzle 11 blown gas amount provided. These means contain an iris diaphragm 16, which at the entrance of a line 23 for air supply is arranged to the nozzle 11. The opening of this aperture can be regulated manually by a button 22 (? ig. 2), The relevant means also contain a circular rotary flap

7319300 10/23/75

I t f «I ■ · ·

S t I · · ·

24 for sailing the air volume, which in the line 23 between the diaphragm 1b and the fan 15 is arranged.

In particular from Pig. 3 to 5 it can be seen that the rotary flap 24 is diametrically attached to a rotatable adjustment rod

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

_% The rotary door 24 is attached to the rod 26 by two screws 60, and the rod is connected through a on one of its ends wound pad en 28 connected to a core 27 which is an electromagnet 26 attached to a collar 40 of the pipe 23 in the air gap slides.

The pad 28 is preferably made of plastic, and the electromagnet 26 is connected to a power source (not shown) by means of connecting wires 50.

The core 27 can slide in the electromagnet 26 when this is excited, uad the rod 25 and dl Turn the rotary flap 24 by means of the connecting thread 28

A non-rotatable with one end of the rod «25

connected squat 66 is attached to a Fixed stop 67 attached to line 23 held

The peder 65 surrounds the rod 25 to the

Squat 66 away from the end of the same and lean on the body the line 23 by a screw 71 to which the end 65a of the pedal 65 is attached.

A circular sector 68 (FIG. 5) provided with a recess 69 is arranged opposite the crouch 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 , the end 68a furthest away from the fixed stop 67. of the sector 68 serves as an adjustable stop for the bracket 66.

Tsar limit the rotation of crouching 66 and thus the rotary flap 24 needs to unscrew the bolt 70 and by rotating the sector 68 while approaching the To bring the end 68a of the crouch 66 into the desired position.

From Pig. 5 shows that egg is so possible is, the rotation of the hook 66 to an angle of maximum

7319300 10/23/75

90 gr & d au limit, this latter value * "the full tanäigen Closure of the line 23 by the rotary flap 24 corresponds.

With the one shown. Example owns the

Sund of the bathtub 12 has a side surface 14, the width of which depends depending on the type of bathtub, approx. 1 to 2 years old *

The distance between this surface 14 and the

Exit 21 of the nozzle 11 remains when the bathtub is moved 12 constant, which for a translational movement is long corresponds to the th side, but this distance decreases when the Bathtub begins to turn in order to bring one end vertically under the sieve 5 «

When I have turned the bathtub by 45 degrees,

It takes position 12a (Pig- 2). As nan sees, it is then the area of the edge 13a lying under the sieve 5 is larger, and the corresponding lateral areas 14a lie considerably near the nozzle 11 closer·

IJm taking this change into account »will

the sieve 5 in synchronism up to position 5 & withdrawn by manual or mechanical means so that the surfaces to be enamelled remain exactly perpendicular to the sieve

According to a feature of the invention is rot-

seen the amount of air blown out through the Suse 11 in function the distance between the Auagangseffaung de? Nozzle and the too to change enamelling Flaohe 14, in the same way as this distance · This scheme can τοη hand or preferably can be made automatically. Let it then provide that Programming unit 42, which in a well-known catfish the corresponding Movements of the bathtub carrying sickle 41 and of the frame 1 controls, including the excitation of the electromagnet 26 »Expensive * These connections are shown schematically in FIGS. 1 and 2 indicated by dot-dash lines emanating from the unit 42. They show the control connections between the unit and the working cylinder 18 and the organs for adjusting the position of the rotary head 3 and the frame 1 ♦

Hit this device is the invention Procedure carried out as follows ι

Before the start of enamelling is the

7319300 10/23/75

State 19 of the working cylinder 18 is retracted, 'the' nozzle 11 is located is in the lower position 11a, and the fan 15 is located, himself in rune.

The working cylinder 18 is then actuated,

Among other things, to bring the nozzle 11 into the operating position by turning about 30 Gr ^ JL about the axis 17. Of the diaphragm aperture 16 is adjusted by means of the knob 22 manually to the appropriate _Vtrt: Hereupon, d i. Since the electromagnet 26 is not energized, the rotary flap 24 lies parallel to the axis of the line 23, ie in the position of the largest flow rate.

Thereupon one gives the bathtub 12 a

its larger side parallel horizontal translational movement and leave on the same side on hand 13 an enamel stream A (Pig 6) fall which is discharged from the sieve 5 eo that it is opposite the vertical on the side surface 14 of the edge 13 survives outside the bathtub. Perner the blower 15 is put into operation

You will through the aperture 16 over the air

Line 23 sucked in and then through the nozzle 11 onto the enamel stream A blown

Crosswise to the side surface 14

Directed gas flow B directs the path of the protruding part A _{1 of the} enamel flow on this surface 14 tra. The enamel pulp therefore arrives at this pool at a speed, the horizontal component of which is considered.

When the bathtub begins to rotate lore

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

This rotation reduces that delivered by the nozzle towards the "lateral pool 14a" of the belt 13a Air volume

Enamelling one end of the bathtub

eats after turning the same uta 180 degrees. The bathtub 12 then again takes a translational movement parallel to its larger sides aaf _f and de? Edge of the second major

7319300 10/23/75

- 9 Page passes under the sieve 5.

The control program interrupts the excitation |

the electromagnet 26 and the coil spring 65 causes the rotation \ flap 24 to its original position · The blown air · j amount then goes back to its maximum value.

The above processes are repeated when the bathtub 12 brings its second end under the sieve 5.

The opening of BIööuö 16 remains during dee Enameling of the entire strip of the bathtub constant «

For distances between the outlet 21 of the nozzle

11 and the surface 14 to be enamelled can be between 50 and 20 cm

3 -

calibrate the air volume e.g. of 200 dm per minute during the Enamelling the large sides of the bathtub to 100 dm in the Minute while enamelling their ends, with the corresponding Air speeds are three meters or one meter per second.

Furthermore, in the case of a bathtub of the usual shape, the upper cable of the outlet 21 of the nozzle 11 can be approximately 35 mm below the Sieve 5 and 115 mm above the level of the horizontal sections of the Hsaäee 13 lying *

The amount of enamel issued is in itself

As is known, regulated by the vibrating device 8 «It can in the example described from 10 kg per minute at the beginning of enamelling to 3 kg per minute aa end of the enamel lierens change, with the vibration frequency at the same time of about 2000 goes to 500 per minute

3 on the tape of the article through the

inventive method and the inventive device applied enamel cover thanks to the oil uniformity the enamel issue has a very even thickness over the entire outline of the article

The device according to the invention enables so the production of sanitary articles of the highest quality. Furthermore, it only requires the use of Terhaltnismassig cheap means thanks to the simplicity of the procedure and the possibility the automatic exercise of the same through programming.

The invention can of course be modified

7319300 10/23/75

So the amount of air during the änaillierenij can be constant be walked, for which it is sufficient to switch off the electromagnet 26, so that the rotary flap 24 remains in Buhe. Liese Abwajvilurxg is for articles to be enamelled with a regular outline Interesting·

The rotary flap 24 and its controls can also be controlled by an electric motor or an electromagnet

the JI end β 16 eroelzeia · i / icrää küüeü

a program in synchronism with the movements of the one to be enamelled Item to be controlled

Pure bathtubs or articles with tangled

Can shape the angular position of the nozzle 11 by one with the movements of the article's synchronized program can be controlled so that their output 21 is at a constant level above the the enamelling surface is held

The working cylinder 18 represents the setting

Position of the nozzle 11 can be carried out by a system known per se Tie rods are replaced, which connects the nozzle 11 old to the rotary head 3. When the horizontal 7th shifts of the nozzle 11 can be controlled by the movements of the frame i so that

Without 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. einea τοη the holder of the organ for dusting the enamel independent carriage "

7319300 10/23/75

Claims (1)

I I ■ I ι ι> I. G 73 19 300.7 May 12, 1975 Soc.Gen.De Fonderie Protection claims 1 · ^ s device for enamelling the edge of a sanitary Object ^ like a bathtub, with a holder for the atomization device of the enamel and with a related of the object to be enamelled adjustable control device for the atomizing device, characterized by a blow nozzle (11), which axis the perpendicular to the sputtering device (5) intersects or runs slightly next to the point of intersection, and through a device sum generating a gas flow, preferably an air blower {14) in the blow nozzle (11). 2 # Device according to claim 1, characterized by a Control device for the air flow rate of the air blower (15) depending on the distance between the mouth of the Nozzle (11) and the surface to be enamelled. 3. Apparatus according to claim 2, characterized in that the control device for the air flow rate is adjustable Has aperture (16). 4. Apparatus according to claim 3ι characterized by a Electric motor or an electromagnet (26) for regulating the diaphragm (16) and an automatic control device for synchronous operation of the electromagnet (26) with the movement of the object to be enamelled. 5. Apparatus according to claim 3 with a constant aperture the diaphragm, · "characterized by a rotary flap (24) for regulating the air flow rate, the with an electromagnet (26) synchronous to the automatic .. 7319300 Z3.10.75 see control device is actuatable. 6. Apparatus according to claim 3, characterized by a manually operable control device for the diaphragm (16). 7. Device according to one of claims 1 to 6, characterized in that that the nozzle (11) about a horizontal axis _; the holder (3) for the dusting device (5) I is pivotable. ϊ ie. Device according to one of claims 1 to 6, characterized in that I indicates that one of the bracket for the nozzle (11) ί (1 »3) for the dusting device (5) independent shark [change is provided. {9. Device according to one of claims 1 to 8, marked I; net by a with respect to the bracket (1,3) for the i dusting device (5) adjustable angle setting device I direction for the nozzle (11). I 10. Apparatus according to claim 7 or 9, characterized by I a rotating head (3) as a holder for the atomization I direction (5), which carries the nozzle (11) and an on the rotary I. head (3) articulated, deformable frame (1) i and by a working cylinder (18) as an angle setting input j direction of the nozzle (11), which is fanned on the rotating head (3) \ is. ■ 11. The device according to claim 10, characterized by a ^; automatic control device for the actuation of the ; Angle adjusting device of the nozzle (11) synchronous with the movement of the object to be enamelled. .7319300 23.10.75