APPLICATION DEVICE FOR MULTICOMPONENT MATERIALS

Abstract

The disclosure relates to an adapter piece for an application device for multicomponent materials, including multicomponent adhesives or multicomponent sealants. The application device has at least one first cartridge receiving device for receiving a first replaceable cartridge containing a first material component, at least one second cartridge receiving device for receiving a second replaceable cartridge containing a second material component, at least one discharging device for discharging the material components out of the cartridges through cartridge outlets, and at least one mixing device for mixing and discharging the material components. A second cartridge receiving area includes a relief chamber such that a material component exiting the second cartridge first fills the relief chamber before entering the mixing device.

Claims

1. An adapter configured for an application device for multicomponent materials, including multicomponent adhesives or multicomponent sealants, wherein the application device has at least a first cartridge receiving device for receiving a first exchangeable cartridge containing a first material component, at least a second cartridge receiving device for receiving a second exchangeable cartridge containing a second material component, at least one expulsion device for expelling material components from the cartridges through cartridge outlets, and at least one mixing device for mixing and discharging the material components, wherein the adapter for such an application device comprises; at least a first cartridge receptacle; and at least a second cartridge receptacle, wherein the second cartridge receptacle includes a relief volume such that a material component when passed out of the second cartridge firstly will fill the relief volume before being passed into a mixing device.

2. An adapter as claimed in claim 1, for an application device for multicomponent materials, including multicomponent adhesives or multicomponent sealants, wherein the application device has at least a first cartridge receiving device for receiving a first exchangeable cartridge containing a first material component, at least a second cartridge receiving device for receiving a second exchangeable cartridge containing a second material component, at least one expulsion device for expelling material components from the cartridges through cartridge outlets, and at least one mixing device for mixing and discharging the material components, wherein the second cartridge receptacle comprises: a supporting device for supporting a closure part configured as a closure film of the second cartridge during a rupturing of the closure part.

3. The adapter as claimed in claim 1, wherein the relief volume is configured at least in some sections as an annular space.

4. The adapter as claimed in claim 1, wherein the second cartridge receptacle has an inward pointing projection, on which the closure part, configured as the closure film, is supported as it is ruptured, wherein the projection, together with a cylindrical, inner wall of the second cartridge receptacle, defines the annular space.

5. The adapter as claimed in claim 4, wherein: the second cartridge receptacle with the projection, has at least one opening through which the second material component will flow as soon as the relief volume is filled, wherein the opening is connected to a discharge duct, which is configured to open out into a mixing chamber and is defined by an interior of the projection and/or wherein the opening is disposed in a depression, so that, when a closure part, configured as a closure film is in contact, a deaeration will be enabled, and/or the opening is not fully closed off by the contacting closure part configured as the adjacent closure film.

6. The adapter as claimed in claim 1, wherein the projection is cylindrically shaped and/or is configured as a hollow body.

7. The adapter as claimed in claim 5, wherein the opening extends over an annular edge, of the projection.

8. The adapter as claimed in claim 1, wherein the relief volume is defined at least partially by a line extension.

9. The adapter as claimed in claim 3, wherein the supporting device comprises: an inward pointing projection and/or is, at least in some sections, hollow cylindrical in shape and/or has a round end face.

10. The adapter as claimed in claim 1, comprising: an end annular face of the relief volume, which end faces away from the second cartridge, and is fluid-tight.

11. The adaptor of claim 1 in combination with an application system comprising; an application device for multicomponent materials, including multicomponent adhesives or multicomponent sealants, wherein the application device includes: at least a first cartridge receiving device for receiving a first exchangeable cartridge containing a first material component; at least a second cartridge receiving device for receiving a second exchangeable cartridge containing a second material component; at least one expulsion device for expelling the material components from the cartridges through cartridge outlets; at least one mixing device for mixing and discharging the material components; and an adapter according to claim 1.

12. The application system as claimed in claim 11, comprising; at least a first and a second cartridge.

13. The application system as claimed in claim 12, wherein the first cartridge is formed from a tubular bag, and/or the second cartridge is formed from a self-supporting body, in particular a cylindrical body.

14. The application system as claimed in claim 11, wherein the first and/or second cartridge, in a preassembly state, is closed off by a rupturable closure element.

15. The application system as claimed in claim 12, wherein the first and/or second cartridge, in a preassembly state, is closed off by a rupturable closure element.

16. The application system as claimed in claim 12, wherein the first and/or second cartridge, in a preassembly state, is closed off by a rupturable closure film.

Description

DESCRIPTION OF THE DRAWINGS

[0031] Advantages and expediency of the invention become clear from the following description of preferred illustrative embodiments on the basis of the figures, whereof:

[0032] FIG. 1 shows a schematically oblique view of an adapter;

[0033] FIG. 2 shows a side view of the adapter according to FIG. 1;

[0034] FIG. 3 shows the adapter according to FIG. 2 together with a mixing device and a first and second cartridge of a side view; and

[0035] FIG. 4 shows a detail of the adapter according to FIG. 1 in an oblique view.

[0036] FIGS. 1 and 2 show an adapter 10 having a first cartridge receptacle 11 and a second cartridge receptacle 12. In addition, a first bushing 13 is provided to conduct a first material component from a first cartridge 14 (see FIG. 3) in the direction of a mixing device 15. Correspondingly, a second bushing 16 is provided to guide a second material component from a second cartridge 17 in the direction of the mixing device 15.

[0037] The mixing device 15 has a mixing device opening 18, from which the mixed material components can be applied.

[0038] In addition, the adapter 10 has a third bushing 19, through which a drive shaft (not shown) can be guided, so that the mixing device 15 can be driven.

[0039] The mixing device 15 is configured in detail, preferably as described in EP 2 468 416 A1. In addition, cartridge receiving devices, which can correspond to the cartridge receiving devices 2.1 and 2.2 according to EP 2 468 416 A1, can be provided.

[0040] A relief volume 20 is discernible in detail in FIG. 4. FIG. 4 corresponds to a detail from FIG. 1, with a view of the second cartridge receptacle 12. The relief volume 20 is specifically formed by a projection 21, which is directed inward, and a wall 22 of the second cartridge receptacle 12. The projection 21 is of (substantially) cylindrical and hollow configuration, so that an annular space is configured as a relief space 20. An end face 23 of the projection 21 is of circular configuration and has (at least in some sections) two openings 24, which extend over an annular edge 25 of the projection 21. Specifically, the openings 24 are configured in recesses 26, so that they are recessed. It is thereby enabled that a closure part of the second cartridge 17, when it bears against the end face 23 of the projection 21, does not close off the openings 26, so that, on the one hand, aeration can take place and, on the other hand, the material component can pass out of the openings 24.

[0041] If the cartridge 12 is inserted and its closure part (closure film) is subjected to pressure such that it tears, the design of the projection 21 leads the film to tear at the margin and the material component to pass into the relief volume 20, to fill this and, after the filling (which accompanies a corresponding relief), to be guided through the openings 24, so that it can make its way to the mixing device.

[0042] The projection 21 can have a height of at least 2 mm or at least 4 mm. The relief volume 20 can amount to at least 1 mm.sup.3 or at least 5 mm.sup.3 and/or at most 500 mm.sup.3 or 200 mm.sup.3. A depth of the relief volume preferably amounts to at least 2 mm or at least 4 mm.

REFERENCE SYMBOL LIST

[0043] 10 adapter [0044] 11 first cartridge receptacle [0045] 12 second cartridge receptacle [0046] 13 first bushing [0047] 14 first cartridge [0048] 15 mixing device [0049] 16 second bushing [0050] 17 second cartridge [0051] 18 mixing device opening [0052] 19 third bushing [0053] 20 relief volume [0054] 21 projection [0055] 22 wall [0056] 23 end face [0057] 24 opening [0058] 25 annular edge [0059] 26 recess