EP3092079A1

EP3092079A1 - Method and device for coating spacers

Info

Publication number: EP3092079A1
Application number: EP15708102.7A
Authority: EP
Inventors: Leopold Mader
Original assignee: Lisec Austria GmbH
Current assignee: Lisec Austria GmbH
Priority date: 2014-01-08
Filing date: 2015-01-07
Publication date: 2016-11-16
Anticipated expiration: 2035-01-07
Also published as: CN105899299B; EA201691387A1; CN105899299A; EA033838B1; WO2015103652A1; KR101927945B1; EP3092079B1; US10350625B2; KR20160106689A; UA115289C2; US20160325299A1

Abstract

A nozzle pair (3, 6) is used to coat the side faces of spacers (1) for insulating glass with an adhesive material, the adhesive material being applied to the side face of the spacers (1) through the nozzles (15) of said nozzle pair. As the side faces of the spacer (1) are coated with adhesive material the nozzle pair (3, 6) is moved along the sides of the spacer (1), the relative movement between the nozzle pair (3, 6) and the spacer (1) being obtained by a movement of the spacer (1) and/or the nozzle pair (3, 6). With this way of working, there is no need to rotate the spacer (1) about an axis perpendicular to its plane and therefore said rotation can be dispensed with.

Description

Method and device for coating spacers

The invention relates to a method for coating

Spacers for insulating glass with adhesive.

The invention further relates to a device with which the method according to the invention can be carried out.

When manufacturing insulating glass are frame-shaped

Spacers used on their side surfaces with

Adhesive (eg with butyl compound) are coated. The spacer thus treated is then applied to one of the glass sheets of the insulating glass and then an insulating glass blank

optionally assembled with filling the gap with a gas other than air by placing a second sheet of glass on the spacer. Thus, an insulating glass blank comprising at least two glass panes and between these at least one spacer is obtained.

For the coating of the often integrally bent from a metal profile strip or made of metal profile strips on corner angles, frame-shaped spacers are

various devices known.

From AT 315 404 B a device is known in which a spacer is manually moved between a pair of nozzles having opposing openings while adhesive is applied to the side surfaces of the spacer. As soon as a side of the spacer formed by a profile strip has been coated with adhesive, the spacer is rotated (for example by 90 ° in the case of a rectangular spacer) and then the next side

Coated until all sides of the spacer on their

Side surfaces are covered with adhesive.

To automate the coating of spacers are Devices have been proposed that perform the turning (turning) of the spacer by means of a device (turning gripper). Reference is made to AT 356 832 B and AT 398 308 B.

The known devices for largely automatic

Coating spacers for insulating glass have proven to be good in principle.

However, sometimes problems arise when larger ones

Spacers or spacers must be coated with built-in rungs.

The invention is based on the object to present a method which allows a gentle and the spacer not incriminating coating of its side surfaces with adhesive.

Furthermore, an apparatus is to be provided with the invention, which carries out the implementation of the invention

Procedure allowed.

This object is achieved by a method having the features of claim 1.

As far as the device according to the invention is concerned, the problem underlying the invention with a

Device having the features of independent, directed to the device claim.

Preferred and advantageous further embodiments of

inventive method on the one hand and the

On the other hand device according to the invention are the subject of the dependent subclaims.

In the invention is a turning (turning) of the spacer, So turning around an axis normal to the plane of the spacer after one side of the spacer with

Adhesive composition has been coated, no longer necessary because the at least one pair of nozzles, from the adhesive on the

Side surfaces of the spacer is applied, one

Performs relative movement along the sides of the spacer.

In the method according to the invention, it is possible to work in such a way that the spacer is aligned essentially perpendicularly and is moved or transported lying in a substantially vertical plane.

In the case of spacers aligned in this way, it is possible within the scope of the invention to carry out the method in such a way that parallel (horizontal) sides of the conveying direction are produced

Spacer coated while this linear

is transported. The normal to the conveying direction standing, substantially vertically aligned sides of the spacer are coated while the spacer is stationary and the at least one pair of nozzles along the substantially vertical side is moved.

In the context of the invention is also considered, the

Stand still stand, so not to move, and only the at least one pair of nozzles along all sides, with a square spacer on all four sides of the

To move spacers.

If spacers for special forms of insulating glass (non-rectangular outline shapes with at least one "oblique" side or outline shapes with at least one not straight

(Curved) side) and spacers for substantially quadrangular insulating glass with rounded corners (insulating glass for wagon windows) are to be coated with adhesive, a linear movement of the spacer with a to his

Movement direction normal movement of the at least one Nozzle pair can be combined.

Alternatively, it is contemplated to move the nozzle pair along a trajectory which is a resultant of two

Movement components (such as a horizontal and a vertical) is.

One for carrying out the method according to the invention

For example, suitable apparatus comprises a

Support for the spacer, by a

Roller field, backup roller field or a sliding surface,

optionally with an integrated conveyor belt, may be formed, and one at the lower end of the support device

arranged conveyor, for example in the form of

Transport rollers and / or at least one conveyor belt on which stand the spacers. In addition, the device has at least one pair of nozzles, which is arranged adjustable in the device. The nozzle pair can be moved transversely to the conveying direction and parallel to the support wall up and down. Drives can be assigned to the nozzle pair in order to move it in a substantially horizontal direction, ie parallel to the

Conveying direction, to move. Also, drives of the nozzle pair can cooperate so that a horizontal movement of the

Nozzle pair is combined with a vertical movement, so that a curved trajectory or a "crooked"

Movement path of the nozzle pair results when spacers for special forms of insulating glass are to be coated with adhesive.

In a modified embodiment, one for the

Execute the method according to the invention suitable

Device, apart from the previously described, at least one pair of nozzles, grippers, the adhesive with the

Capture coating spacers in the area of one of its sides, the spacer of the grippers in the

Essentially vertically hanging down. At this

Embodiment is a support device and a Conveyor at the bottom of the support

dispensable.

In one embodiment of the device according to the invention it can be provided that the at least one movable nozzle pair is associated with a buffer container for adhesive. This

Buffer container for adhesive moves with the nozzle pair. In the buffer container, an amount of adhesive is preferably presented which is suitable for coating one or more

Spacers is needed.

This embodiment has the advantage that the movable

Nozzle pair no longer necessarily be connected to a supply line for adhesive and must nachschleppen this. In this embodiment form of the device according to the invention is sought after, in the buffer container as small as possible, but nevertheless sufficiently large amount of adhesive in stock.

The provision of a buffer container also has the advantage that only short lines between the buffer container and the nozzles for applying the adhesive to the spacer

are required, so that the regulation of the amount of adhesive applied to a spacer can be made more accurate. In this embodiment it can be provided that the

Buffer container with a reservoir for adhesive

is connected and if necessary adhesive is refilled from the reservoir into the buffer tank.

In the device according to the invention, the spacer in an embodiment of the device according to the invention by a conveyor device, comprising for example a silicone-coated conveyor belt or conveyor rollers, in the

Transporting coating station. Often, the weight of the spacer is not sufficient to the sufficient for conveying the spacer traction between Effect spacers and conveyor belt. Therefore, it can be provided in one embodiment within the scope of the invention that non-driven, ie freely rotatable rollers are applied to the inside of the spacer, which load the spacer against the conveyor and so the for conveying the

Spacer during coating effect sufficiently large adhesion.

In one embodiment of the invention, a nozzle pair moves out of the adhesive onto the side surfaces of the spacer

is applied, the spacer along its entire U catch from and coated it with adhesive. In this embodiment, the spacer may stand still while it is being coated.

In this embodiment, care must be taken to ensure that, when coating the side of the spacer which rests on the liner conveyor, the further supporting and conveying means acting on the spacer are moved away when the nozzle pair is moved past them during the coating process.

If the spacer in at least one direction a

Has dimension that is greater than the effective length of

Coating station, can be proceeded so that the

Spacer is replicated for full coating of one side.

In one embodiment of the invention it can be provided that during coating of the spacer two pairs of nozzles

be used. In this embodiment, work is carried out so that the spacer is conveyed to the edge of the coating station. Then, with the aid of the first nozzle pair, the one, aligned transversely to the conveying direction, z. B. vertical, side of the spacer coated with adhesive. Once this is done, the spacer is further promoted in the coating station while his, parallel to the conveying direction aligned sides (eg upper and lower side) of the

Spacer with the help of the first and with the help of a

further, second nozzle pair coated with adhesive. Once this is done, the second, aligned transversely to the conveying direction, z. B. vertical, side of the spacer coated by means of the first nozzle pair. At this

Embodiment are coated by means of a movable nozzle pair three sides of a rectangular spacer and the fourth side by means of a second nozzle pair.

The procedure described above can be modified by working only with a pair of nozzles, wherein the

Spacer, after the one nozzle pair, the first aligned transversely to the conveying direction, z. B. vertical, side of the (upper) horizontal side and the other oriented transversely to the conveying direction, z. B. vertical, side coated, for

Coating the last (lower) side of the spacer is moved back against the previous conveying direction.

Further details and features of the invention will become apparent from the following description of preferred embodiments. It shows:

Fig. 1

to 4 different stages when coating a

Spacer with the help of two nozzle pairs,

Fig. 5 schematically and in front view of a pair of nozzles without

Roll,

Fig. 6 is a side view of an embodiment of a

Pair of nozzles,

Fig. 7 in section one side of a spacer with him

assigned roles, wherein the spacer has no rungs,

Fig. 8 in section one side of a spacer with a

Rung,

9 the rollers associated with the spacer of FIG. 8, FIG. Fig. 10, the coating of a spacer for insulating glass with rounded corners and

Fig. 11 shows schematically an embodiment of a device for

Coating spacers.

In the procedure shown in FIGS. 1 to 4 for

Coating a spacer 1 with adhesive, a spacer 1 is conveyed in a coating station 2. As soon as the spacer 1 has reached the coating station 2 in the region of a first nozzle pair 3, the spacer 1 is stopped and the nozzle pair 3 is moved upwards along the (front) vertical side 4 of the spacer 1 (arrow 5).

Once the side 4 of the spacer 1 with adhesive

has been coated, the nozzle pair 3 is pivoted and brought a second pair of nozzles 6 in operative position. Then the spacer 1 is linearly moved (arrow 9), so that a

Relative movement between the upper horizontal side 7 and the first nozzle pair 3 associated with these sides and the lower horizontal side 8 of the spacer 1 and the second nozzle pair 6 assigned to this side 8 results, so that the sides 7 and 8 are coated with adhesive.

As the next step of coating the four sides of the

Spacer 1, the, relative to the direction of movement (arrow 9), rear vertical side 10 coated by the nozzle pair 3 along the side 10 in the direction of the arrow 11 is moved.

In the description of that shown in Figs. 1 to 4

Embodiment has assumed that the spacer 1 in the coating station 2 is substantially perpendicular

is aligned. However, this is not mandatory since the same sequence of movements and the same method steps can also be carried out with a horizontal spacer 1. When in the course of the description of the embodiment shown in FIGS. 1 to 4 and in further embodiments thereof

is spoken that the spacer 1 "stands still", this means that the relative movement between a nozzle pair 3 or 6 and the spacer 1 is effected solely by moving the nozzle pair 3 or 6. This does not exclude that the spacer 1 itself (slightly) across the

Alignment of its side being coated is being moved.

FIG. 5 shows, in a schematic view, a pair of nozzles 3 or 6 with two nozzles 15, which are assigned to the side of a spacer 1 and deposit layers 16 of adhesive on their side surfaces. In the embodiment shown in Fig. 5, the nozzles 15 are connected to a holder, for example screwed, with their mouths to the side surfaces of the

Spacers 1 are directed towards, so on them

Adhesive can be applied to form the layers 16 of adhesive.

In the embodiment of a pair of nozzles 3 or 6 shown in FIG. 6, the rollers 17, 18 assigned to the pair of nozzles 3 or 6 are also shown, which the nozzle pair 3 or 6 on

Guide spacer 1. When shown in Fig. 6

Embodiment is considered that the rollers 17 or only a few of them, are driven. The arranged within the spacer 1 rollers 17, which at the

Abut against the inner surface, opposite, ie outside the spacer 1, arranged rollers 18 are in particular free-running Gegenhalterollen, for example, in the direction of the arrow 19 of Fig. 6 on the spacer 1 charged

(biased) are.

Instead of the rollers 17 of the embodiment of Fig. 6 and conveyor belts may be provided. Fig. 7 shows how the rollers 17 and 18 on the side of a

Spacer 1 on the inner surface (rollers 17) and the outer surface (rollers 18) abut.

When a spacer 1 with rungs 20 (Fig. 8) is to be coated with adhesive, a roller assembly as shown schematically in Fig. 9 may be used. The rollers 18 are replaced in the arrangement shown in Fig. 9 by two grooved rollers 21, which, without colliding with the rungs 10 of the spacer 1, can roll on the spacer 1 fitting.

Fig. 10 shows how a nozzle pair with nozzles 15 (without rollers 17, 18 and 21) shown when coating a spacer 1 is moved with rounded corners to the spacer 1 in the region of its rounded corners with adhesive too

coat. For this purpose, the nozzle pair is pivoted during coating of the spacer 1 in the region of its rounded corners about an axis oriented perpendicular to the plane of the spacer 1 axis, while it is moved in the region of the bent corners.

In the embodiment shown in FIG. 11, one for the

To carry out the method according to the invention for coating spacers 1 with adhesive, at least two clamps 27 are provided on a rail 25 via slides 26, which are clamped against the upper side of a spacer 1 in order to keep the spacer 1 in a substantially vertically suspended position , The carriages 26 can be moved along (arrows 28) of the rail 25 so that horizontal movements of the spacer 1 can be carried out. In a

Embodiment can be provided that the rail 25 is adjustable up and down (arrow 29) to move the spacer 1 vertically. The ability to adjust the rail 25 in the direction of arrow 29, allows the device to adapt to the size of spacers. The exact guidance of the spacer 1 when applying

Adhesive composition on the side surfaces takes place with the aid of the rollers 17, 18, 21 on the nozzle pair 3 or 6, which may be formed, for example, as shown in FIGS. 5 and 6.

If the nozzle pair 3 or 6 for coating the upper,

horizontal, held by the terminals 27 side of

Spacer 1 is active and arrives in the region of a terminal 27, this is released from the spacer 1 and moved away. As soon as the nozzle pair 3 or 6 has moved past the point at which the clamp 27 was placed on the spacer 1, the clamp 27 is returned and clamped to the clamp

Spacer 1 created.

The arrangement shown in Fig. 11 can serve not only for holding and moving the spacer 1, while it is covered with adhesive, but also for arrival and / or removal of spacers 1 in the device 2 for coating spacers 1 with adhesive ,

The inventive method can as well as the

inventive device with the filling of spacers 1 be combined with desiccant. For example, spacers 1 are filled prior to entry into the coating station 2 with desiccant and the filling opening after the

Coating the spacer 1 closed with adhesive, including, for example, adhesive (butyl compound) is used.

To hold a spacer 1, the grippers 27 shown in Fig. 11 can be replaced by bolts on which the spacer 1 hangs. For example, such bolts in the region of the corners of a spacer 1 and possibly also between the corners (as ünterstützungsbolzen) are provided. Such bolts are removable (eg, retractable) from their kneading action holding the spacer 1, so that the nozzles 15 at

Coating can be moved without obstruction by bolts. An embodiment according to FIG. 11 allows the

Device according to the invention in an advantageous manner

upstream stations (eg bending a profile strip to a spacer 1 before filling with desiccant) and downstream stations (eg

Spacer 1 to a glass pane) to combine. The movements in stations that are upstream and downstream of the device according to the invention, with the help of

Carriage 26, which are arranged on the (correspondingly extended) rail 25, are performed.

In summary, an embodiment of the invention can be described as follows:

For coating the side surfaces of spacers 1 for

Insulating glass with adhesive, a nozzle pair 3, 6 is used, from the nozzle 15 adhesive on the side surfaces of the

Spacer 1 is applied. When coating the

Side surfaces of the spacer 1 with adhesive is the

Nozzle pairs 3, 6 are moved along the sides of the spacer 1. The relative movement between nozzle pair 3, 6 and

Spacer 1 achieved by the fact that the spacer 1 and / or the nozzle pair 3, 6 is moved. In this procedure, a rotation of the spacer 1 is dispensable about an axis perpendicular to its axis and deleted.

Claims

Claims:

1. Method for coating the side surfaces of

Spacers (1) for insulating glass with adhesive by means of at least one pair of nozzles (3, 6), wherein from the nozzles (15) adhesive to the side surfaces of the spacer

(1) is applied, characterized in that the nozzle pair (3, 6) along the sides of the spacer (1) is moved while it is stationary or exclusively performs at least one linear movement.

2. The method according to claim 1, characterized in that on side surfaces of the sides frame-shaped spacer (1) adhesive is applied.

3. The method according to claim 1 or 2, characterized in that on the side surfaces of the spacer (1)

Adhesive is applied while the spacer (1) is aligned in a substantially vertical plane.

4. The method according to any one of claims 1 to 3, characterized

characterized in that during coating of the side surfaces of substantially transversely to the direction of the relative movement between the nozzle pair (3, 6) and spacer (1), z. B.

vertically aligned sides of the spacer (1) the nozzle pair (3, 6) along the sides to be coated, is moved.

5. The method according to any one of claims 1 to 4, characterized

characterized in that, when coating the side surfaces of sides of the spacer (1), substantially in

Direction of relative movement between nozzle pair (3, 6) and spacer (1), z. B. horizontally aligned, the spacer (1) and / or the nozzle pair (3, 6) is moved linearly.

6. The method according to any one of claims 1 to 5, characterized

in that when coating substantially perpendicularly aligned spacers (1) for special shapes when applying the adhesive to the side surfaces of the spacer (1), both the nozzle pair (3, 6) and the spacer (1) are moved linearly.

7. The method according to any one of claims 1 to 6, characterized

in that, when coating spacers for special forms of insulating glass, the spacer (1) stands still and the nozzle pair (3, 6) is moved in a direction which causes the resultant of a

horizontal movement and a substantially vertical movement of the nozzle pair (3, 6).

8. The method according to any one of claims 1 to 7, characterized

characterized in that the nozzle pair (3, 6) when applying adhesive in the region of curved sections,

in particular bent corners of the spacer (1) in addition to its movement about the plane of the

Spacer (1) vertical axis is pivoted.

9. Apparatus for carrying out the method according to one of

Claims 1 to 8 with a support means, for. B. one

Supporting wall, for spacers (1) and at least one pair of nozzles (3, 6), characterized in that

Nozzle pair (3, 6) is assigned a drive for adjusting the nozzle pair (3, 6) in a plane parallel to the plane of the support device.

10. The device according to claim 9, characterized in that the support device is substantially perpendicular

is aligned and that the nozzle pair (3, 6) is adjustable in a plane parallel to the support device.

11. Apparatus according to claim 9 or 10, characterized characterized in that the device comprises a conveyor for spacers (1), which at the bottom of the support means, for. B. the support wall is provided.

12. Device according to one of claims 1 to 11, characterized

in that the support device is a roller field, a field with support rollers or a sliding wall with a conveyor belt provided in it.

13. Device according to one of claims 1 to 12, characterized

characterized in that two pairs of nozzles (3, 6) are provided, of which one pair of nozzles (3) in the region of the lower edge of the support device, in particular in the region of

Conveyor, is provided and that the second

Nozzle pair (6) along the support device transverse to

The conveying direction of the conveyor is adjustable.

14. Device according to one of claims 1 to 13, characterized

characterized in that the nozzle pair (3, 6) to a for

Support normal axis is pivoted.

15. Apparatus for carrying out the method according to one of

Claims 1 to 14 with at least one pair of nozzles (3, 6), characterized in that the nozzle pair (3, 6) a

Drive for adjusting the nozzle pair (3, 6) is assigned in a plane parallel to the plane of the spacer level and that at least two clamps (27) are provided, which hold the spacer (1) during the coating and for moving the spacer (1) are linearly adjustable.

16. Device according to one of claims 1 to 15, characterized

characterized in that the clamps (27) on slides (26) on a guide rail (25) are adjustable.

17. Device according to one of claims 1 to 16, characterized in that the guide rail (25) is adjustable relative to its longitudinal extent in the plane of the spacer (1).

18. Device according to one of claims 1 to 17, characterized

in that the nozzles (15) of the nozzle pair (3, 6) are associated with a moving reservoir for adhesive.

19. Device according to one of claims 1 to 18, characterized

characterized in that on the nozzle pair (3, 6) conveying means, for. B. driven rollers (17) and counter-retaining rollers (18) are provided.