WO2007118265A1

WO2007118265A1 - Device for the application of varnish to a linear element

Info

Publication number: WO2007118265A1
Application number: PCT/AT2007/000172
Authority: WO
Inventors: Gerald Pascher
Original assignee: Nhkm Consulting Gmbh
Priority date: 2006-04-18
Filing date: 2007-04-16
Publication date: 2007-10-25
Also published as: AT9324U1; EP2007527A1

Abstract

A device (1) for applying varnish to a linear element (10), in particular a wire, wherein, for the application of at least two coats of different types of varnish, at least two varnish storage containers (2) filled with the different types of varnish are provided, each coat of varnish comprises several layers of the same type of varnish, each varnish storage container (2) is connected to a central varnish feed conduit (3) equipped with a pump device (5), which varnish feed conduit has several inlet holes (4) in an end section, a varnish application element (9) can be selectively connected to at least one respective inlet hole (4), said varnish application element has a tank (21) that is filled with varnish as well as at least one through duct (12) for the linear element (10), and the varnish application element (9) that is mounted on a support (11) can be placed in an application position in which the tank (21) is connected to the inlet hole (4), and in a closed position in which the inlet hole (4) is closed.

Description

Device for applying paint to a linear element

The invention relates to a device for applying paint to a linear element, in particular a wire, wherein at least two filled with the different types of paint reservoirs are provided for applying at least two layers of paint from different types of paint, and each layer of paint covers several covers the same type of paint.

Lacquer application devices are known from the prior art with which a plurality of paint layers of different types of paint can be applied to a wire, each paint layer having a plurality of coverings, consisting of the like type of paint. In particular, a lacquer base layer, a lacquer center layer and a lacquer top layer are provided, wherein the lacquer layers usually have up to 24 coverages in total. In order to apply such a coating to at least two layers, each comprising a plurality of coverings, it is known to provide devices in which a paint supply line connected to the respective paint reservoir is divided into a plurality of section supply lines. In order to control the supply to the individual sections, each of which comprises a certain - fixed - number of covers, via the section supply lines, it is necessary to provide a three-way valve in each section supply line to selectively control the paint supply to the respective selection can.

The disadvantage here is in particular that the user is confronted with a variety of confusing three-way valves to adjust the selective control of the individual sections for a paint layer. In addition, in each case a three-way valve is associated with a section in which a predetermined number of covers can be applied in a lacquer layer. This results in a rigid, extremely low-flexibility system, in which the user can not freely choose the number of covers driven via a three-way valve.

In addition, in such devices for the Lack supply often meter-long plastic lines are provided, but some aggressive types of lacquer these plastic pipes decomposed, so that often leaks occurred.

From US 4,869,199 a bus bar for distributing paint for the purpose of wire painting is known. The distribution rail has a plurality of side-by-side feeders for a die strip with inserts, each containing a passageway for wire coating. The feeders can be switched on individually via valves. In this case, all feeds are fed from the same paint reservoir.

From EP 1 324 355 A2, a wire dyeing apparatus is known with which a single coating layer consisting of up to four colors can be applied to a wire. It is not several layers of paint from different types of paint applied in one operation.

Furthermore, EP 1 496 525 A2 discloses a different type of wire-coating device with a drip device.

The aim of the present invention is now to provide a device for applying paint, which has a high flexibility in terms of the number of coverages to be applied per paint layer and at the same time allows easier operation for the user. In addition, the safety of the device should be increased by leaks in the paint supply can be avoided.

The device of the initially cited type is characterized in that each paint reservoir is in communication with a central paint supply line having a pumping device which has a plurality of inlet openings in one end section, wherein at least one inlet opening is selectively connectable to a paint applicator element, which comprises a bath for filling with lacquer and at least one passage channel for the linear element, and wherein the lacquer application element is positioned on a support in an application position, in which the trough communicates with the inlet opening, and in a closed position, in which the inlet opening is closed bar is. The provision of a central paint supply line, which has a plurality of inlet openings in its end section, wherein a paint application element can be selectively connected to these inlet openings, results in a substantially higher flexibility for the user who does not follow the rigidly predetermined division into several sections, each section has a fixed number of covers is bound. Rather, the user can optionally connect a paint application element to the inlet openings in a simple manner, so that the number of coverings of the same type of paint can be freely selected. Furthermore, the operator of the device no longer needs to set a plurality of three-way valves, but can easily position the paint application element either in the order position provided that at least one cover should be applied or transfer the paint application element in a simple manner in a closed position ,

In order to enable the application of multiple coverings with a single paint application element, it is advantageous if each paint application element has at least two through-channels, preferably two, four or six through-channels. Thus, the user is preferably offered paint application elements, which have either two, four or six lead-through channels, which can be used modularly as needed and can be combined with each other, so that a variety of different coverages can be easily adjusted.

If each paint application element has a number of passage channels corresponding number of paint inlet openings in the tub, which are arranged congruent in the order position with an outlet opening of an inlet channel connected to the ZulaufÖffnung congruent, is a reliable paint supply to the tub, through which the linear element drawn for paint application is guaranteed. A structurally simple design for the paint supply in the tub is given when the paint inlet openings are provided in a bottom surface of the tub.

With regard to a structurally simple embodiment of the Direction and a reliable paint supply, it is advantageous if the paint supply line is arranged substantially horizontally and the inlet channels extend substantially perpendicular to the longitudinal axis of the paint supply line in the vertical direction.

In order to allow a flow of the supplied via the supply line in the closed position of the paint applicator paint without contact with the linear element and at the same time to ensure in the application position of the paint application member only a paint outlet through the inlet openings, it is advantageous if the paint supply line, preferably a number of inlet openings corresponding number of drain openings, which are each closed in the order position of the paint application element, and are in the closed position of the paint application member with the respective paint reservoir in combination.

For an expedient embodiment for deriving the paint in the closed position of the paint application element, it is advantageous if a drain channel connected in each case to a drain opening extends in a horizontal direction substantially perpendicular to the longitudinal axis of the paint supply line. In this context, it is advantageous if the outlet openings of the drainage channels are covered in the order position of the paint application member by a cantilevered side wall of the paint application member.

In order to be able to move the paint application element in a simple manner between the application position and the closed position, it is advantageous if the paint application element is mounted displaceably on a substantially planar upper surface of the support with a substantially planar lower bottom surface.

In order to collect the lacquer excess stripped off by the lacquer application element or to collect the lacquer flowing out of the tub in the closed position of the lacquer application element, it is favorable if in each case one lacquer collecting container is provided in front of and behind the support in longitudinal direction of the leadthrough channel Connection stands. In order to allow drainage of collected in the order position in the tub Lackbads in the closed position of the tub of the coating application member, it is favorable if in ^'the bottom surface of the tub adjacent the Lackeintrittsföffnung a paint outlet opening is provided which a in the closing position of the paint applicator element with Paint collection container is in communication.

If the passage channel has two passage openings in side walls of the tub and a spaced apart from the tub AbstreifÖffnung, an appropriate guidance of the linear element is ensured when passing through the trough in the order position and also the paint application is stripped to the desired thickness of the respective cover.

In order to allow the stripped excess paint to flow away, it is advantageous if the paint application element between the trough and the wiping opening has a base-side recess which is arranged above a paint collecting container.

With regard to a user-friendly simple adjustability of the paint application element, it is advantageous if the paint application element has a handle.

If the paint supply line has a shut-off valve, the paint supply can be blocked in a central paint supply line, should the paint layer consisting of this kind of paint not be provided at all in a special linear element.

To avoid leaks in the paint supply due to leaks in the paint supply line, which can be caused for example due to the decomposition of a plastic line by particularly aggressive types of paint, it is advantageous if both the section of paint supply line between paint reservoir and shut-off valve and the with the ZulaufÖffnungen provided end portion consist of a metallic line. If only one connection section of the paint feed line between the shut-off valve and the end section consists of a plastic material, the section of the paint supply line, which consists of a plastic material, are kept as short as possible.

In order to be able to apply a base layer, a middle layer and a top layer to the linear element, it is advantageous if three paint containers filled with different types of paint are provided. If each paint container two central paint supply lines are assigned, two paint application devices can be controlled independently of each other via a paint container.

In order to ensure the user a high degree of flexibility and he is not bound to a small number of coverings, it is advantageous if the end portion of the paint feed lines each having at least 12, in particular 24 inlet openings.

The invention will be explained in more detail with reference to a preferred embodiment shown in the drawing, to which, however, it should not be limited. In detail show:

Figure 1 is a schematic representation of the paint application device with three paint reservoirs and each 24 ZulaufÖffnungen in central paint supply lines.

FIG. 2 is a perspective view of the paint application device according to the invention; FIG.

FIG. 3 shows a side view of the paint application device according to FIG. 2; FIG.

4 shows in detail a perspective plan view of a carrier of the paint application device for receiving paint application elements;

Fig. 5 is a section along the line V-V in Fig. 4;

FIG. 6 shows in detail a sectional view of a paint application element placed on the support in the application position; FIG. and Fig. 7 in detail a sectional view of FIG. 6, but in the closed position of the paint applicator element.

In Fig. 1 is a schematic representation of a paint application device 1 is shown, wherein it is apparent that three paint reservoir 2 are provided, in each of which a different paint (base coat, middle coat, top coat) is added. The device shown in Fig. 1 allows the application of a total of 24 coverages, wherein each connected to a paint reservoir 2 central paint supply line 3 has a corresponding number of inlet openings 4. In the paint supply line 3, a pump device 5 is arranged in each case to promote the paint from the paint reservoir 2 to the inlet openings 4. In addition, the central paint supply lines 3 each have a control valve 6, via which the paint supply to the inlet openings 4 can be interrupted. Furthermore, a T-piece 7 is still visible in the paint supply lines 3, via which optionally an expansion line 8 can be connected.

Paint application elements 9 for applying paint to a wire 10 (see FIG. 6) can then be selectively connected to the inlet openings 4. The paint applicator elements 9 can in this case have a different number of feedthrough channels 12, depending on how many covers with the respective paint applicator element 9 are to be applied to the wire 10.

In the exemplary embodiment shown in FIG. 1, three paint application elements 9 are provided on a carrier 11 of the left reservoir 2 for applying a base layer, two paint application elements 9 for applying six coverings, six passage channels 12 and a further paint application element 9 for applying four coverings, has four passageways 12. On the central support or main body 11, a paint applicator element 9 is placed, which has four feedthrough channels 12 for applying four coverings of the paint middle layer. The paint supply container 2 arranged on the right in FIG. 1 for applying a top layer is assigned two paint application elements 9, these paint application elements 9 each having two through-channels 12 for applying two coverings each exhibit. Thus, in the exemplary embodiment shown in FIG. 1, 16 coverings of the paint base layer (six 4-six + four coverings) four coverings of the paint middle layer and four coverings of the paint top layer (two + two coverings) are applied. In this case, the wire is initially guided in the direction of arrow 10 'along the dashed line shown in FIG. 1 through the device 1, then fed to a drying device and then reappears in the paint application device 1 along the second dot-dash line as seen from above. Thus, first the 16 coverings of the base layer on the wire 10 then the four coverings of the middle layer and finally four coverings of the top layer are applied, the wire 10, the paint application device 1 then leaves in the direction of arrow 10 ''.

In Fig. 1 is further seen that each carrier 11, an intermediate tank 13 is assigned to the intermediate storage of the back flowing from the carrier 11 paint, from where the cached paint flows back via a return line 14 into the respective paint reservoir 2.

In Fig. 2 is a perspective view of a double-executed paint application device 1 is shown, in which each independently three carriers 11 are provided for receiving paint application elements 9. In this case, it can be seen in particular that the paint application elements 9 are placed on the essentially cuboid support 11 for connection to the paint supply line 3. Each paint device 1 is in this case assigned a closable lid 15. The paint devices 1 can in this case have common paint reservoir 2, so that a paint reservoir 2 are each assigned two central paint supply lines 3.

In particular, it can be seen in FIG. 3 that the user only has to operate three rotary handles 6 'of the control valves 6, whereas a large number of valves had to be operated in previously known paint application devices in order to control the respective paint supply to the cover sections.

In particular, it can be seen in FIG cuboid paint application elements 9 are slidably mounted on a support 11, wherein the paint application elements 9 for moving on the support 11 each have a handle 16. In this case, the paint application elements 9 are displaceably mounted in the feedthrough direction of the wire 10 (cf., dot-dash lines in FIG. 1), with guides 17 being provided on the upper side of the supports 11 for this purpose. In the exemplary embodiment shown in FIGS. 4 and 5, four paint application elements 9 are arranged on the carrier 11 provided for applying the base layer, two of which have six through-channels 12 and two four through-channels 12. On the provided for applying the paint middle layer carrier 11 two paint application elements 9 are mounted with two through channels 12. On the other hand, no single paint application element 9 is placed on the third support 11, so that in the exemplary embodiment shown in FIGS. 4 and 5 no upper lacquer layer is applied. However, the user of the paint device 1 can easily adjust the desired number of coverages in the respective paint layer by simply moving the paint application elements 9 in a simple manner. In order to create constant pressure conditions - irrespective of how many paint application elements 9 are used - the inlet openings 4, to which no paint application elements 9 are connected, are blocked (for example via barriers).

5, it can be seen, in particular, that the paint supply lines 3 have, in an end section, a number of inlet openings 4 corresponding to the number of possible coverings, which, as shown in FIG. 6, in the application position via an inlet channel 18 with a paint inlet opening 19 in a bottom surface 20 of a trough 21 of the paint application device 9 are in communication. Due to the aligned arrangement of the paint inlet opening 19 in the bottom surface 20 of the trough 21 with an outlet opening 4 'of the inlet channel 18, in the application position shown in Fig. 6 promoted by the pumping device 5 paint can enter the trough 21, wherein the wire 10 for Be charged with the accumulated in the tub 21 paint bath through side openings 23 in the paint applicator element 9 is passed to the application of paint. In the direction of passage 24 seen below points the paint application element 9, a wiping nozzle 25, by means of which the excess paint application is stripped off. This excess coating application flows via a bottom-side recess 25 "into a paint collecting container 26, of which the paint flows via a line 27 first into the paint intermediate container 13 and subsequently into the paint reservoir 2.

As can be seen in particular in FIG. 6, the paint application element 9 has a side wall 30 projecting beyond the bottom surface 20, which in the application position shown in FIG. 6 has an exit opening 28 'of a discharge channel 29 which communicates with the discharge opening 28 of the supply line 3 stands, covers. In this way, an outlet via the drain opening 30 in the application position can be prevented and the entire paint supplied via the supply line 9 enters the tub 20 via the paint inlet opening 19.

However, if the paint application element 9 is moved to the left in the closed position shown in Fig. 7 by the user simply takes the paint application element on the handle 16 and moves on the flat surface of the support 11, the outlet opening 28 'of the drain channel 29 is released, however the outlet opening 4 'of the inlet channel 18 is closed by the bottom surface of the tub 20.

Furthermore, a paint outlet opening 31 is provided in the bottom surface 20 of the trough 21 next to the paint inlet opening 19, via which in the trough 21 previously accumulated coating bath (see Fig. 6) from the trough 21 into a closed position shown in Fig. 7 in a Paint collection container 26 drains from where the paint flows back via a line 27, first in the paint intermediate tank 13 and on to the paint reservoir 2.

For fastening the paint application element 9 in the application position according to FIG. 6 or the closed position according to FIG. 7, in each case a screw 32 is provided in the edge sections of the paint application elements (cf., in particular, FIG. 5).

The central supply lines consist almost exclusively of a metallic material, for example copper, so that too particularly aggressive paints do not lead to the destruction of the supply lines 3. Only a short section between the control valve 6 and the end section provided with the inflow openings is provided with a paint supply line section 3 'made of a resilient plastic material. As a result, the risk of possible leaks can be significantly reduced.

However, what is essential is merely that a higher flexibility or easier operation is achieved for the selective selection of the number of covers of individual paint layers.

Claims

- -Claims:

1. Device (1) for applying paint to a linear element (10), in particular a wire, wherein at least two filled with the different types of paint paint reservoir (2) are provided for applying at least two paint layers of different types of paint, and each coating layer several coverages comprises the same type of paint, characterized in that each paint reservoir (2) with a central, a pumping device (5) having paint supply line (3) is in communication, which has a plurality of inlet openings (4) in one end, wherein at least one inlet opening ( 4) selectively a paint applicator element (9) can be connected, which is a trough

(21) for filling with lacquer and at least one passage channel (12) for the linear element (10), and wherein the lacquer application element (9) on a support (11) in an order position, in which the trough (21) with the inlet opening ( 4) is in communication, and in a closed position, in which the inlet opening (4) is closed, can be positioned.

2. Device according to claim 1, characterized in that each paint applicator element (9) has at least two through channels (12), preferably two, four or six through channels (12).

3. Apparatus according to claim 1 or 2, characterized in that each paint application element (9) has a number of passage channels (12) corresponding number of paint inlet openings (19) in the trough (21), in the order position in each case with an outlet opening ( 4 ') of an inlet channel (18) connected to the inlet opening (4) are arranged congruently.

4. Apparatus according to claim 3, characterized in that the paint inlet openings (19) in a bottom surface (20) of the trough (21) are provided.

5. Apparatus according to claim 3 or 4, characterized in that the paint supply line (3) arranged substantially horizontally and the inlet channels (18) substantially perpendicular extend to the longitudinal axis of the paint supply line (3) in the vertical direction.

6. Device according to one of claims 1 to 5, characterized in that the paint supply line (3) has a preferably the number of ZulaufÖffnungen (4) corresponding number of drain openings (20), which are each closed in the order position of the Lackauftragselements (9) , and in the closed position of the paint application element (9) with the respective paint reservoir (2) are in communication.

7. The device according to claim 6, characterized in that a respective one drain opening (28) connected to the drain channel (29) extends substantially perpendicular to the longitudinal axis of the paint supply line (3) in the horizontal direction.

8. The device according to claim 7, characterized in that the outlet openings (28 ') of the drainage channels (29) in the order position of the paint application element (9) by a freely projecting side wall (30) of the paint application element (9) are covered.

9. Device according to one of claims 1 to 8, characterized in that the paint application member (9) is slidably mounted with a substantially planar lower bottom surface on a substantially planar top surface of the support (11).

10. Device according to one of claims 1 to 9, characterized in that in the longitudinal direction of the passage channel (12) seen in front of and behind the carrier (11) is provided in each case a paint collection container (26) which are in communication with the paint reservoir (2) ,

11. The device according to claim 10, characterized in that in the bottom surface (20) of the trough (21) adjacent the paint inlet opening (19) a paint outlet opening (31) is provided which in the closed position of the paint application element (9) with a paint collection container (26).

12. Device according to one of claims 1 to 11, characterized in that the passage channel (12) has two Durchtrittsöff- - -

has in side walls of the tub (21) and a spaced from the trough (21) arranged Abstreiföffnung (25).

13. The apparatus according to claim 12, characterized in that the paint application element (9) between the trough (21) and the stripping opening (25) has a bottom-side recess (25 ') which is arranged above a paint collection container (26).

14. Device according to one of claims 1 to 13, characterized in that the paint application element (9) has a handle (16).

15. Device according to one of claims 1 to 14, characterized in that the paint feed line (3) has a shut-off valve (6).

16. The apparatus according to claim 15, characterized in that the section of the paint supply line (3) between the paint reservoir (12) and shut-off valve (6) and provided with the ZulaufÖffnungen end portion of a metallic line.

17. The apparatus of claim 15 or 16, characterized in that only one connecting portion (3 ¹ ) of the paint feed line (3) between the shut-off valve (6) and the end portion consists of a plastic material.

18. Device according to one of claims 1 to 17, characterized in that three filled with different types of paint paint container (2) are provided.

19. Device according to one of claims 1 to 18, characterized in that each paint container (2) are associated with two central paint supply lines (3).

20. Device according to one of claims 1 to 19, characterized in that the end portion of the paint feed lines (3) each have at least 12, in particular 24 inlet openings (4).