DE8007628U1 - EXTRUDED PROFILE, ESPECIALLY FOR PRODUCING AN INSULATED COMPOSITE PROFILE FOR WINDOWS, DOORS AND THE LIKE - Google Patents

Description

Eduard Hueck
Loher Strasse 9

5880 Lüdenscheid March 19, 1980

Extruded profile, in particular for the production of an Isolier-Verbundpro files for windows, doors and dg l. .

The innovation relates to an extruded profile, in particular for further processing to an insulating composite profile for windows, doors and the like, consisting of at least two spaced apart, on their mutually facing inner sides projections, undercuts or the like. Having metal profiles, which along their length through metal cavity bridges are connected, which together with the walls of the metal profiles each have a channel open on one side for receiving form a plastic with low heat conduction that can be filled in a liquid or approximately liquid state and through longitudinal cavities are separated from each other.

The task of the innovation is to provide an extruded profile that is Suitable for the economical production of composite insulating profiles for windows, doors and the like with large cross-sections and a high level of stability and Dimensional accuracy guaranteed.

This object is achieved according to the invention in that the extruded profile ordered from a one-piece pressed starting profile cross-section and has at least three cavity bridges, two of which separated by a first longitudinal cavity, face each other directly and each form the bottom boundary of the channels, while the third cavity bridging from the adjacent bridging is arranged at a distance from a second longitudinal cavity and two grooves with their open sides facing one another.

The walls of the channel expediently have t on their free legs

i'i end towards each other directed bends. ';,

The extruded profile according to the invention is illustrated below with the aid of an in | i

the embodiment illustrated in the drawing explained in more detail. §

In the drawing show:

Fig. 1 'the extruded profile according to the invention,

Fig. 2 shows the cross section of an insulating composite profile

further processed extruded profile

and ι

3 to 10 show the individual process steps in the production of a V. Isolier Verbuiidprofiles from the extruded profile

Fig. 1.. ;

The extruded profile shown in FIG. 1 has two metal profiles 1, 2 arranged at a distance from one another. Each metal profile has projections, undercuts and the like 3, 4, which during further processing to insulating A ^ erbundprofilen (Fig. 2) for anchoring with the insulating _; serve material. The metal profiles 1, 2 have three cavity bridging webs 5, 6, 7 arranged one above the other, which extend parallel one above the other over the length of the metal profiles and, together with the side walls 8 to 13 of the metal profiles, each have a U-shaped channel 14, 15, open on one side. 16 form. The channels serve to hold the insulating material during the further processing of the extruded profiles and are separated from one another by longitudinal cavities 17, 18 along the length of the metal profiles. The extruded profile consists of an initial profile cross-section which is pressed in one piece during manufacture, the cavity bridges 5-7 producing the connection between the metal profiles 1, 2 during the pressing process.

As can be seen from Figure 1, the cavity bridging webs 6 and 7, which are separated by the longitudinal cavity 18, seen in cross section, face one another directly. Both bridges are at a distance a respective channel height from the filling opening 19, 20 extending over the length of the profile, with the bottom-side Form the delimitation of the grooves 15, 16. In contrast, the cavity bridging has .ö.d.e-r, pb.erein, -Rinnje. · 1 · 4 from the neighboring bridge

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6 a distance, which on the one hand by the .Längshohlraum 17 and to other is determined by the height of the grooves 15 and 14, respectively. As a result, the bridging 5 has when the insulating material is later filled not the function of a bottom cover of the channel 14, but primarily aims to maintain the required tolerances during the extrusion process.

The extruded profile described, which is made, for example, of light metal can then become an insulating composite profile (Fig. 2) further processed, in which the metal cavity bridging webs 5 to 7 are no longer present. The connection of the metal profiles 1, 2 with each other is produced in the finished composite profile exclusively via insulating core strips 22, 23, 24, which extend continuously over the Extend the length of the profiles 1,2 and are positively connected to the hook-like projections 3, 4 of the channels.

The production of such an insulating composite profile from the extruded Starting profile cross-section according to Figure 1 takes place in the following process steps:

First, the extruded profile is clamped in a suitable device. In a first work stage (Fig. 3), the upper bridging web 5 between the metal profiles 1, 2 is removed. This can be done in a known manner Sawing, milling, pressing in by means of rotating pressure rollers 25, 26, or in any other way. After this editing process, the Profile the shape shown in Figure 4. The profile with its notch formed in this way is then inserted through the one filling opening 21 arises, passed under a pouring head 28, from which, in the liquid state, a plastic with low thermal conductivity into the one under the channel 14 Channel 15 is filled (Fig. 5). Without waiting for the insulating material has set in the channel 1 5, a separating strip 29 is then inserted into the upper channel 14 between the profiles 1,2, which consists of a flexible Material can exist and has the task of forming a bottom cover for the channel 14. The insertion of the separating strip 29 can be automatic from a supply roll that is continuously unwinding with the transport movement of the metal profiles. In a further stage of work the profile passes a second pouring head 29 *, which follows the pouring head 28 in a transport movement, via which the channel 14 is filled with insulating material becomes (Fig. 7 *). . ·· .. · '..' ·, ■ ";." . ".. ·".

1 I.

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After the plastic in the chin 14 has set, that will Extruded profile rotated by 180 about its longitudinal axis, so that the lower channel 16 facing away from the casting devices 28, 29 'up to that point is the upper channel .Assumes position that previously held the channel 14. After this change of position the channel 16 is passed under a further pouring head 30 (Fig. 8) and also with plastic during the transport movement poured out (Fig. 9).

After the plastic has set in the last poured channel 16, in the example chosen, from one end face of the composite profile into the box-shaped cavity 18 is designated as a whole as 31 Tool introduced (FIG. 10), which has cutting blades 32 on its sides facing the bridging webs 6, 7. The tool 3i is appropriately designed so adjustable (not shown) that an adjustment of the cutting depth of the cutting knife 32 in the bridging webs 6, 7 is possible. The tool is finally pulled or pushed through the box-shaped cavity while the cutting knife along a predetermined line, cut through the bridging webs 6, 7, preferably at the same time so deeply that the insulating cores 23, 24 are not be included in order to avoid notch effects. At the trailing The front side of the tool is provided with suitable drivers, not shown, which capture the beginning of the bridging webs that have been cut and pull it out of the cavity 18 in the cutting direction. The metallic connection between the metal profiles 1,2 is canceled. The composite profile produced in this way (Fig. 2) is ready for further processing.

As a modification thereof, the channel bottoms 6, 7 can also be milled off or sawed off or be demolished. In the latter case, the channel bottoms are made with suitable pre-fracture points pressed on during manufacture 33 provided, which run through the length of the extruded profile.

For the separation process it is of course not absolutely necessary move the tool through the cavity of a stationary composite profile. It is only important that a relative movement takes place between the composite profile and the tool.

Claims (2)

Expectations 1. Extruded profile, in particular for the production of an insulating composite profile for windows, doors and the like, consisting of at least two spaced apart, on their inner sides facing each other Projections, undercuts or the like having metal profiles, which are connected along their length by metal cavity bridges are, which together with the walls of the metal profiles each have a channel open on one side for receiving a liquid or approximately liquid Form state of fillable plastic with low heat conduction and are separated from one another by longitudinal cavities, characterized in that the extruded profile consists of a single-piece pressed starting profile cross-section consists and has at least three cavity bridges (5-7), two of which (6, 7), separated by a first longitudinal cavity (18), are directly facing each other and each form the bottom delimitation of the channels (15, 16), while the third cavity bridging (5) from the adjacent bridge (6) at a distance of a second longitudinal cavity (17) and two with their open sides to each other facing grooves (14,15) is arranged. 2. Extruded profile according to claim 1, characterized in that the walls (8-13) of the grooves (14-16) have developed developments (3, 4) facing one another at their free leg ends.