EP3033465A1

EP3033465A1 - Method for filling a joint with an adhesive and/or sealing material and system for filling a joint with an adhesive and/or sealing material

Info

Publication number: EP3033465A1
Application number: EP14750741.2A
Authority: EP
Inventors: Manuel Buck
Original assignee: Sika Technology AG
Current assignee: Sika Technology AG
Priority date: 2013-08-14
Filing date: 2014-08-14
Publication date: 2016-06-22
Also published as: CN105452587B; CN105452587A; WO2015022391A1; EP2837766A1; US20160176104A1; MX2016001879A; US10040244B2; JP2016533926A

Abstract

The invention relates to a method for filling a joint (12) with an adhesive and/or sealing material (22), comprising: a) positioning a first part, in particular an insert (11), and a second part, in particular a frame (10), so that the first and second parts form the joint (12); b) introducing a movable spacer (24a to 24h) into the joint (12); c) positioning a nozzle element (23) over the joint (12); d) displacing the nozzle element (23) along the joint (12) such that the nozzle element (23) strikes against the spacer (24a to 24h) and moves the latter forwards; and e) discharging the adhesive and/or sealing material (22) out of an exit nozzle of the nozzle element (23) during step d).

Description

Method for filling a joint with an adhesive and / or sealant and system for filling a joint with an adhesive and / or sealant Description Technical field

The invention relates to a method for filling a joint with an adhesive and / or sealant according to claim 1, the use of a spacer according to claim 10, a system for filling a joint with a sealing and / or adhesive according to claim 11 and a spacer according to Claim 14.

State of the art

Devices for filling a joint with an adhesive and / or sealant are known from the prior art.

The document WO 97/03270 Al describes a spacer to position a glass. The spacer has at least one round formation on at least one edge portion to gently space the window glass from a window profile upon insertion of the spacer.

From DE 20 2010 002 821 Ul an adhesive nozzle for a gluing machine is known. A base body of the adhesive nozzle has at its one end an elongated adhesive outlet. An adhesive nozzle hollow body is on the one hand, i. formed in the region of the adhesive outlet as a flat, plate-shaped element and has at its other end an approximately square broadening. The adhesive outlet extends over a majority of the front end surface of the plate-shaped element. A thickness of the plate-shaped element corresponds to an adhesive nozzle. Overall, the plate-shaped element of the nozzle is introduced into the joint.

For example, it is known to position an insert in a frame to be bonded or sealed by means of centering elements. It is possible to replace such a (also serving as a spacer) centering by an adhesive tape. Another possibility of positioning an insert in a frame is described in WO 2012/001005 AI. Through so-called hollow "lost blocks", an insert is aligned in a frame and held in a certain position.The blocks remain in the joint even after filling the joint with an adhesive or sealant in which connection it is considered disadvantageous in that a large number of centering elements have to be used in order to

achieve satisfactory filling of the joint. This is because between two centering elements (spacers) remains a gap, which is the greater, the fewer centering elements are used. Within this space the gap is not clearly defined. Depending on the material of the frame or insert, the joint can be large even over short sections

Have variations in their thickness. In principle, this can only be remedied (or reduced) in the prior art by providing additional centering elements. So in the prior art, it is basically

problematic that either a high effort must be operated (use of a variety of centering) or significant compromises in the quality of joint filling must be accepted.

It is an object of the invention to propose a method and a system for filling a joint with an adhesive and / or sealant, in which with little effort, a satisfactory (constant) filling a joint can be achieved. Furthermore, a spacer and a use of a spacer to be proposed. Presentation of the invention

This object is achieved by a method according to claim 1, a use according to claim 10, a system according to claim 11 and a spacer according to claim 14.

In particular, the object is achieved by a method for filling a joint with an adhesive and / or sealant, comprising the steps: a) positioning of a first part, in particular an insert, and a second part, in particular a frame, so that first and second part form a fugue; b) introducing a movable spacer into the joint; c) positioning a nozzle element over the joint; d) moving the nozzle element along the joint such that the

Nozzle member abuts the spacer and moves it forward; and e) ejecting adhesive from an exit opening of the nozzle member during step d).

A central idea of the invention is that a movable spacer is provided, which is moved forward via an equally movable nozzle element. The nozzle element thus pushes the spacer through the gap to be filled with an adhesive and / or sealant. This ensures that the nozzle element always at a short distance behind the moving spacer adhesive and / or sealant fills in the joint. This also means that the filling of the adhesive or sealant is always caused spatially close to a spacer. Due to this spatial proximity, a high constancy of the joint width is achieved. The spacer defines the joint width. Overall, with a small number of spacers, possibly with only one spacer, a constant filling of a joint with an adhesive and / or sealant can be achieved. With a simple measure thus two basically contradictory requirements are met simultaneously, namely on the one hand to ensure a constant filling of the joint and on the other hand to reduce the manufacturing effort.

According to a general concept of the invention, at least one

Nozzle element and at least one arranged in spatial proximity to the nozzle member spacers simultaneously moved through a joint. The spatial distance of the nozzle element and spacer is preferably less than or equal to 5 centimeters, more preferably less than or equal to 1 centimeter. A development of this general idea can nozzle element and spacers are moved forward by a common drive means. However, it is also conceivable for each nozzle element and spacer a separate

To provide drive means, the nozzle member and spacers move forward at the same speed. Procedurally so can the Feature d) are generalized to that nozzle element and

Spacers are moved at the same speed and at a small distance from each other (the distance may be, for example, less than or equal to 5 centimeters smaller than 1 centimeter, or even reduced to 0).

As a gap should be understood in particular a gap between two adjacent parts. In the case of an insert to be placed in a frame, the joint is also frame-shaped or rectangular and forms the space between the inner edge of the frame and the outer edge of the insert. In particular, a glass can be used as the insert.

Preferably, the insert is the cover (glass cover) for a solar collector or a photovoltaic element.

The spacer may act as a centering element (in the case of filling a joint between an insert and a frame), which means that the spacer (possibly together with further spacers) defines the position of the insert within the frame. For this purpose, a plurality of (movable) spacers can be provided. On the other hand, the spacer also defines the joint width and in particular in a short (temporal or spatial) distance to the location at which adhesive and / or sealant is introduced via the nozzle element. The spacer can be completely positioned in the joint. However, it is preferred if the spacer is only partially disposed within the joint and this partially surmounted. The adhesive and / or sealant may be an adhesive and / or

Silicone-based sealant. An adhesive is preferably to be understood as meaning a substance which enables a material connection between two parts. A sealant is preferably an elastic sealant. But there are also cement and other possibly

inelastic sealants in question.

The method is preferably used for solar thermal collectors, photovoltaic systems, partitions or windows, in particular for thermal solar collectors.

Preferably, the spacer is removed when reaching a joint end or a joint corner of the joint. Alternatively, it is also conceivable that the Spacer remains when reaching a joint end or a joint corner in the joint. However, when the spacer reaches a

Joint or a joint corner is removed, the movable

Continue nozzle element in a simple way, without interrupting the filling of the joint takes place. This further simplifies and speeds up the process.

Preferably, the spacer has a run-on slope such that it is lifted out when abutting a joint end or a joint corner. Alternatively or additionally, a run-on slope can be provided at a joint end or a joint corner such that the spacer is lifted out when starting against the run-on slope of the joint end or the joint corner. A run-up slope at a joint end or a joint corner can be realized, for example, by the fact that the joint (at its bottom) has a ramp. It is preferred if the spacer has a run-on slope. This can be realized for example by a convex portion (on the underside) of the spacer. In general, a run-up slope of the spacer is provided at the bottom. The underside should be that side of the spacer which points in the direction of the joint. In a specific embodiment, the run-on slope of the spacer is formed by a convex rib. This convex rib is preferably also the portion of the spacer which is located within the joint and ultimately defines the joint width. In a specific embodiment, a plurality of (movable) spacers are provided, which are introduced into the joint. As a result, the positioning of the two parts which form the joint can be further improved. It is particularly preferred if a plurality of spacers (for example, two spacers) are moved forward simultaneously through the nozzle element. The nozzle element can therefore collect several spacers at the same time so that they can be removed (for example at a joint end or a joint corner). This realizes a simple yet fast process. The joint may have several angles (for example greater than 10 degrees,

especially equal to 90 degrees) comprise mutually opposing part-joints. In each of the part-joints is preferably at least one movable Spacers introduced. This will easily be an exact

Positioning of the first and second part achieved. In particular, if the first part is an insert (glass sheet) and the second part is a frame, an exact centering of the insert can be made possible.

In a concrete embodiment of the method, the joint has a

rectangular (generally: square) shape and has four part-joints, each two adjacent part joints are preferably oriented perpendicular to each other. In each part-joint is (are) preferably at least one, more preferably exactly two, spacers incorporated. It is particularly preferred if each two spacers (before moving the same ben) are introduced in each corner area of the joint. In this sense, a corner region is to be understood as a corner region, in particular, if the respective "region" extends (starting from a certain corner) over less than 30% (in particular less than 15%) of the parting joint adjoining the corner Such an arrangement of the spacers in the part-joints achieves exact positioning of the first and second part, while at the same time the process is slow and the speed is high.

Preferably, the nozzle element retains when passing through a joint (or

Along the fugue along the way). The orientation of the nozzle element is intended in particular to be understood to mean its angular orientation with respect to a fixed coordinate system (for example defined by the length, width and height of a frame). In particular, the nozzle element does not change its orientation when it reaches a joint corner and passes through it. For example, this is similar to a person who makes four steps forward and then four steps sideways and continues to look in the same direction. In any case, by such a maintenance of the

Orientation of the nozzle element allows a quick process of the same even in a corner region. This further simplifies the process in a simple way.

Preferably, in the case of a joint corner, at least one of the surface sections of the first or second part which adjoin the joint edge on the inside is covered with a cover, in particular a tape (adhesive tape). In the movement of the nozzle element is preferably in the provided with a cover surface portion to that surface portion, the is traversed later, when the nozzle member passes through the corner area. By providing such a cover adhesive and / or sealant, the possibly. adhered to the nozzle, be painted off. Overall, it is

sufficient if only the time later to be traversed surface sections are provided with a cover. So it is not necessary that all adjacent to the joints surface sections are provided with a cover. Overall, a clean working can be made possible by this measure, so that a further step in the removal of smeared sealing and / or adhesive residues can be omitted or the removal is reduced to remove the previously angeord designated cover (especially the previously arranged tape) which takes only a few seconds.

The adhesive and / or sealant used preferably has a viscosity (in the initial state, during discharge from the exit nozzle, for example, at 23 ° C.) such that the forces acting on the joint after filling the joint (Shear or shear forces) can be compensated (ie the joint width and the orientation of the parts in the field of introduction of the adhesive and / or sealant does not change). The viscosity (at 23 ° C.) preferably has a value of at least 10 ³ , more preferably at least 10 ⁴ , even more preferably at least 10 ⁵ mPa * s. By such an adhesive and / or sealant, the method can be further accelerated, and the number of spacers may be reduced. The above object is further achieved by the use of a spacer with a run-on slope for adjusting the distance of a joint between two parts, in particular between an insert and a frame, for filling the joint with an adhesive and / or sealant. By the

Use of such a spacer, this can be particularly easy to reach when reaching a joint end or a joint corner (quasi-automatic). As a result, the process for removing the spacer need not be interrupted.

The above object is further achieved by a system for filling a joint with a sealant and / or adhesive, in particular according to the method described above and / or for the use described above, comprising: A movable nozzle member having an outlet opening;

- a movable spacer and

- A run-up slope for lifting the spacer when reaching a joint end or a joint corner.

A central idea of this aspect lies in the starting slope for lifting the spacer. The run-on slope is designed such that the spacer is removed (or lifted from the joint) when it reaches the joint end or the joint corner (due to its tarnishing against the joint end or the joint corner). In this respect, any inclined surface is not suitable. Rather, the run-up slope must be adapted to raise the spacer (due to its relative movement with respect to the joint end or joint corner). For example, the spacer of WO 97/03270 AI is not suitable for this.

With such a system, the spacer can be particularly easily removed from the joint, which speeds up the process with simple means.

Preferably, the spacer on the run-on slope. Further

Preferably, the run-up slope is formed by a convex portion (eg, a convex rib, for example, at the bottom of the spacer).

The system preferably further comprises an adhesive and / or sealant having a viscosity of at least 10 ³ , preferably at least 10 ⁴ , more preferably at least 10 ⁵ mPa * s. By such

(highly viscous) adhesive is made possible to stabilize a filled joint by the adhesive or sealant itself.

The above object is further achieved by a spacer for a method for filling a joint with an adhesive and / or sealant, in particular for the method of the type described above and / or for the use of the type described above and / or the system of described above, wherein the spacer has a run-on slope such that the spacer is lifted when abutting an edge upwards. A central idea with respect to the spacer is that the run-up slope of the spacer is designed and provided so that the spacer is lifted upwards when abutting an edge (a joint end or a joint corner) and is thereby removed. The spacer is thus designed so that (alone) the relative movement between

Spacer and the edge ensures that it lifts the spacer upwards. Additional measures for lifting the spacer are therefore not necessary (and not provided). The known from the prior art spacers (for example, according to WO 97/03270 AI) are not suitable to realize such an (automatic) lifting. However, such a (automatic) lifting a spacer is provided, which allows a much simplified method for filling a joint. With regard to the advantages, moreover, to the above statements

Use and referenced to the system. The spacer preferably has a cuboid base body. Alternatively or additionally, the spacer may have a rib (preferably convex) forming the run-up slope. In a specific embodiment, this rib is arranged on one of the rectangular surfaces (for example, the underside of the cuboid). About such a rib, the spacer can slide very easily in a joint.

At the same time, the rib is used to lift the spacer out of the joint. Overall, this makes the filling of a joint easy, fast and accurate. A central idea of the present invention is thus to provide a joint between two parts (in particular an insert and a frame)

Provide spacers, wherein the filling of the sealing and / or

Adhesive is moved through the nozzle member of the spacer together with the nozzle member along the joint until it is lifted out of this at the end of the joint or at a corner of the joint. To allow this lifting out, the joint (for example, a frame forming the joint bottom) may have a ramp. Such a ramp (point of contact) can also be arranged outside the joint or even outside a frame (for example on or in an auxiliary frame). Such a ramp may be sprung mounted or include a spring, for example, such that on the one hand, the spacer can slide out and the ramp (point of contact) of the

Nozzle element can be pushed down. It would also be reasonable possible to remove the spacer by a separate device (machine) (eg by gripping or the like).

Alternatively (preferred), the spacer has a chamfer (on its underside). Overall, this ensures that an active removal of the spacer is eliminated. By moving the spacer along the joint a uniform width of the joint is ensured. The spacer is preferably a block (wooden block). Further embodiments emerge from the subclaims.

Brief description of the drawings

The invention will be described in terms of further features and advantages with reference to an embodiment, which is explained in more detail with reference to the drawings.

1 is a top view of an insert and a frame, and a system for filling adhesive and / or sealant in a joint;

2 shows the arrangement according to FIG. 1 along the section line II - II in FIG.

1;

3 shows a spacer with a section of a joint wall. and

Fig. 4 shows the spacer and the neck of a joint wall in a position different from Fig. 3 to each other.

Way to carry out the invention

In the following description, the same reference numerals are used for the same and like parts. 1 and 2 show a frame 10 and an insert 11 (eg glass pane) arranged within the frame 10. Between frame 10 and insert 11 is a (rectangular) joint 12 with part-joints 13, 14, 15 and 16, each defining a straight portion of the joint 12. One

Joint bottom 17 (see FIG. 2) is defined by the frame 10. Furthermore, the frame 10 defines a first joint wall 18. A second joint wall 19 is partially defined by the frame 10 and an outer edge 20 of the insert 11. The inside of the frame 10 extending projection 21 serves on the one hand as a support for the insert 11 and on the other hand as a sealing element to prevent adhesive or sealant from passing under the insert 11. Overall, the joint 12 has an L-shaped cross section (see Fig. 2).

A sealing and / or adhesive 22 is filled via a nozzle member 23 in the joint 12. In the gap 12 spacers 24a to 24h are arranged. The

Spacers 24b to 24h are in a basic position, ie in one

Position before the adhesive is filled. The first spacer 24a has already been displaced by the nozzle element 23 in the direction of an arrow 25 (upward in FIG. 1). The arrow 25 indicates the instantaneous direction of movement of the nozzle element 23. Overall, in the present example, the nozzle 25 first passes through the parting joint 13, then the parting joint 14, then the parting joint 15 and finally the parting joint 16, until it again reaches the first parting joint 13. As soon as the nozzle element 23, together with the spacers 24a to 24h respectively arranged in a part-joint 13, 14, 15 and 16, reaches the next corner, these spacers are pushed out in the corner 26. Thus, when the nozzle member 23 once passes through the entire joint 12, all (eight) spacers 24a to 24h are successively removed. In the basic position of

Spacers 24a to 24h (in FIG. 1, only the spacers 24b to 24h are in the home position) are located in a respective corner region 27. A corner region (to which the spacers 24b and 24c are associated) is exemplified by the dashed line 28 , The (respective) corner region 28 extends for example over 30% of the associated partial joints. Within this corner region 28 then two spacers 24 b, 24 c (in its basic position) are arranged. Furthermore, adhesive tapes (not shown in the figures) can be arranged in the corner region 28 or on the surface portions 29 adjoining the corners 26. The adhesive tapes are preferably arranged exclusively in surface portions 29, which adjoin a joint corner 26 (within a corner region 28) and when passing through the respective corner region 28 through the nozzle member 23 only after the

Direction change of the nozzle 23 are passed. The adhesive tapes (not shown) may, for example, have a width of at least 2 cm or at least 3 cm. An upper limit for the width may be, for example, at most 10 cm or at most 7 cm. Instead of adhesive tapes can be realized another way of covering the said surface portions 29 (which may also have the above dimensions).

The geometric configuration of the spacers 24a to 24h can be particularly Fig. 2 (right) u nd Figs. 3 and 4. As can be seen in FIG. 2, each spacer comprises a rib 30 which slides within the groove 12. The rib 30 is located on a side of the spacers 24 a to 24 h, which faces the joint 12. By the rib-like projection 30, the spacers 24a to 24h slide particularly friction and effectively in the joint 12. In addition to the rib 30, the spacers 24a to 24h a cuboid base 31, which does not slide during the process inside the joint, but above the joint along seam edges 32 defined by insert 11 and frame 10. By way of example, the spacer 24a in FIG. 3 is shown in a side view, together with a portion of a joint wall 33. As shown in FIG. 3 recognizable, the rib 30 is preferably convex and thereby defines a run-on slope 34. Instead of a convex design would also be a triangular formation or another geometry conceivable as long as a run-on slope 34 is provided. Fig. 3 shows the

Position of the spacer 24a at the time of reaching the joint wall 33 (see also Fig. 1, top left). An arrow 35 (see FIGS. 3 and 4) indicates the instantaneous direction of movement of the spacer 24a. In Fig. 4, the spacer 24a is located a short time after the position of FIG. 3 to see. As can be seen, due to the formation of the focal point 34 of

Spacer 24a levered out of the joint 12 so that the spacer 24a (quasi-automatically) away from the joint.

It should be noted at this point that all parts described above, taken alone and in their combination, especially in the

Drawings shown details are claimed as essential to the invention. Changes are familiar to the person skilled in the art. Bezuaszeichenliste

5 10 frames

11 insert

12 fugue

13 part-joint

14 partial joint

10 15 partial joint

16 part-joint

17 joints reason

18 First joint wall

19 Second joint wall

15 20 outer edge

21 lead

22 sealing and / or adhesive

23 nozzle element

24a spacers

20 24b spacers

24c spacers

24d spacers

24e spacers

24f spacers

25 24g spacers

24h spacer

25 arrow

26 corner

27 corner area

30 28 Dashed line

29 area section

30 rib

31 basic body

32 joint edge

35 33 Joint wall

34 run-up slope

35 arrow

Claims

claims

Method for filling a joint (12) with an adhesive and / or

A sealant (22) comprising: a) positioning a first part, in particular an insert (11), and a second part, in particular a frame (10), so that first and second part form the joint (12); b) introducing a movable spacer (24a to 24h) in the joint (12); c) positioning a nozzle element (23) over the joint (12); d) moving the nozzle member (23) along the groove (12) such that the nozzle member (23) abuts and advances the spacer (24a to 24h); and e) ejecting the adhesive and / or sealant (22) from a

Outlet nozzle of the nozzle element (23) during step d).

Method according to claim 1,

d a d u r c h e n c i n e s that

the spacer (24a to 24h) on reaching a joint end or a joint corner (26) is removed from the joint (12).

Method according to claim 1 or 2, in particular according to claim 2, characterized in that

the spacer (24a to 24h) has a run-on slope (34) such that it abuts against a joint end or a joint corner

is lifted and / or

d a d u r c h e n c i n e s that

at a joint end or a joint corner (26) a run-on slope is provided such that the spacer (24a to 24h) during

Starting against the joint end or the joint corner is lifted out. Method according to one of the preceding claims, characterized in that

a plurality of movable spacers (24a to 24h) are introduced into the joint (12), wherein preferably, at least partially, more

Spacers (24a to 24h) are advanced simultaneously through the nozzle member (23).

Method according to one of the preceding claims,

d a d u r c h e n c i n e s that

the joint (12) comprises a plurality of partial joints (13, 14, 15, 16) at an angle to one another and at least one, in particular, movable spacer (24a to 24h) in each part-joint (13, 14, 15, 16) is introduced.

Method according to one of the preceding claims,

d a d u r c h e n c i n e s that

the joint (12) has a rectangular shape and four part-joints (13, 14, 15, 16), wherein each two adjacent part joints are oriented perpendicular to each other, more preferably in each part-joint (13, 14, 15 , 16) at least one, preferably two, spacers (12) are attached, wherein preferably two spacers (12), before moving them, are each introduced into a respective corner region of the joint.

Method according to one of the preceding claims,

d a d u r c h e n c i n e s that

the nozzle element (23) retains its orientation when passing through a joint corner (26).

Method according to one of the preceding claims,

d a d u r c h e n c i n e s that

at a joint corner (26) at least one of the inside of the joint corner (26) adjacent surface portions (29) of the first or second part are covered with a cover, in particular a tape.

Method according to one of the preceding claims,

characterized in that an adhesive and / or sealant is used as the adhesive and / or sealant (22), which has a viscosity in the initial state, during the discharge from the outlet nozzle, such that occurring relative forces between the frame (10) and insert (11) the adhesive and / or sealant are balanced, wherein the adhesive and / or sealant (22)

preferably has a viscosity of greater than or equal to 10 ³ , more preferably greater than or equal to 10 ⁴ , even more preferably greater than or equal to 10 ⁵ mPa * s.

Use of a spacer with a run-on slope (34) for adjusting the width of a joint (12) between two parts, in particular between a frame (10) and an insert (11), for a method, in particular according to one of claims 1-9 Fill the joint (12) with an adhesive and / or sealant (22).

A system for filling a joint (12) with a sealing and / or adhesive (22), in particular according to the method according to any one of claims 1-9 and / or for the use according to claim 10, comprising: a movable nozzle element (23) an outlet opening; at least one movable spacer (24a to 24h) and a run-up slope (34) for lifting the spacer (24a b 24h).

System according to claim 11,

d a d u rc h e ke n ze i c h n et that

the spacer (24a to 24h) having the run-on slope (34), wherein the run-on slope (34) is preferably formed by a convex portion.

System according to claim 11 or 12,

d a d u rc h e ke n ze i c h n et that

the system comprises an adhesive and / or sealant (22), wherein the adhesive and / or sealant has a viscosity of greater than or equal to 10 ³ , preferably greater than or equal to 10 ⁴ , even more preferably greater than or equal to 10 ⁵ mPa * s.

14. Spacer (24a to 24h) for a method for filling a joint (12) with an adhesive and / or sealant (22), in particular according to the method according to any one of claims 1-9 and / or for use according to claim 10 and / or for the system according to any one of claims 11-13, wherein the spacer (24a to 24h) has a run-on slope (34) such that the spacer (24a to 24h) is lifted up on abutment against an edge.

15. Spacer according to claim 14,

d a d u r c h e n c i n e s that

the spacer (24a to 24h) has a cuboid base body (31) and / or

a, preferably convex, for example, the run-on slope forming rib, which is arranged in particular on one of the cuboid surfaces has.