DE102005032406A1 - Extrusion of viscous elastomers on substrates, comprises placing plasticized elastomer adhesive as profile strand on substrate by nozzle, vulcanizing rubber material and supplying the rubber materials as continuous strand to feeding unit - Google Patents

Abstract

The extrusion of viscous elastomers on substrate (2), comprises placing plasticized elastomer adhesive on substrate as profile strand by nozzle (8) and supplying degassed (5)- and non-vulcanized rubber and/or ethylene propylene diene monomer rubber materials as a continuous strand to feeding unit upstream to the nozzle. The rubber material is in-situ vulcanized after placing the adhesive on the substrate. The feeding unit is firmly or movably arranged with the nozzle and is led along the nozzle for placing the profile strand in a given course. The extrusion of viscous elastomers on substrates, comprises placing plasticized elastomer adhesive on substrate (2) as profile strand by nozzle (8) and supplying degassed (5)- and non-vulcanized rubber and/or ethylene propylene diene monomer rubber materials as a continuous strand to feeding unit upstream to the nozzle. The rubber material is in-situ vulcanized after placing the adhesive on the substrate. The feeding unit is firmly or movably arranged with the nozzle and is led along the nozzle for placing the profile strand in a given course. The continuous strand is arranged between plasticizing unit and the feeding unit and led over a limited section with independent and variable length to balance fluctuations of the mass flow and led over a movable roller to create a buffer area for length fluctuations. A high-pressure gear- or screw pump (7) is used as feeding unit and is blocked by an extrusion nozzle. The dip height of the strand in the area of the independent guidance is measured constantly by a measurement device. The signals of the measurement device are used for controlling momentary buffer length of the strand. The strand in the area of the independent guidance is controlled and stopped by a guidance device. The strand of the feeding unit is fed through a flexible longitudinal guidance encasing the strand without any application of pressure. The longitudinal guidance is built by a coil spring with an inside diameter larger than the cross section of the strand. The profile strand for the vulcanization is heated up in-situ by contact- and/or convection heat and/or microwave radiant heat, after its application on the substrate and laid down in contact with a molding base taking up the substrate. The molding base is heated up as an in-situ vulcanization device to a temperature favorable for the vulcanization of the profile strand. An adhesive layer is applied in the region on the substrate covered by the strand, before deposition of the strand. Independent claims are included for: (1) a device for extrusion of viscous elastomers on substrates; and (2) a pane substrate.

Description

The This invention relates to a process for extruding high viscosity elastomeric plastics using a gear pump with the features of the preamble of claim 1, and to a device to perform of the procedure. It also refers to products, in particular Window panes made with in situ extruded strands equipped with such materials.

It is known ( DE 41 23 588 A1 ) to supply a pasty thermoplastic mass from an extruder via a heated pressure hose of an extrusion die, which in turn is guided by a robot for direct extrusion in situ of profile strands on objects such as windows in particular movable. In this solution, the extruder, a gear pump immediately after and the pressure hose upstream to ensure a uniform flow rate at the material outlet.

A Phase of the elastomer used consists of crosslinked EPDM (ethylene-propylene-diene monomer), the other phase is polypropylene (called these materials also as TPE / V, z. Under the trade name Santoprene). Only the mixing of EPDM with polypropylene provides the thermoplastic, d. H. one multiple processing accessible Properties of the material safe.

vulcanized EPDM have opposite TPE a much lower compression set (= higher resilience) and are therefore mainly for dynamic and static highly loaded seals in vehicles better suitable. For example, door seals made of EPDM are prefabricated and then attached to the frame parts.

If also the previously used thermoplastic elastomers in general a sufficient permanent elasticity have, so can but certain new requirements, for example, to the restoring forces, permanent tightness etc. of edge profiles for Vehicle windows, be better handled with vulcanized EPDM.

It is known EP 508 285 B1 a method and device, wherein a gear pump ensures a uniform volume flow, which has an independent of the extruder drive - electromotive - drive and supplies the material compressed by her an extrusion die.

WO 02/26471 A1 and DE 102 45 306 A1 also deal with such methods and devices, the focus is on a common, optimized with respect to the correct pressure curve in the extruded plastic mass drive for the extruder and the gear pump.

In all these cases is however a close spatial Unit of the extruder with the gear pump provided and intended. This means that the mobility of the actual extrusion die is very high limited is, or even that only for stationary extruding of profile strands movable documents and / or substrates is suitable.

Of the emerging EPDM profile strand is according to the prior art suitable means, for. B. vulcanized in a hot air tunnel in a run. Only after vulcanization does the material have its final (not reversible) properties.

Of the The invention is based on the object of specifying a method with the highly viscous polymers such as EPDM, when extruded on a Metering device can not be waived, directly on any Target substrate can be extruded and vulcanized in situ, and to provide a device which is particularly suitable for carrying out this method suitable is.

These Task is in terms of the method according to the invention with the Characteristics of claim 1 solved. The features of the claim 14 indicate a corresponding device. The features of the claim 29 indicate appropriately equipped products. The characteristics of the independent one claims each subordinate dependent claims give advantageous developments of this invention.

Thus, according to the invention a strand of EPDM or comparable polymer on a target substrate extruded directly as a strand and vulcanized in situ. It can either the nozzle be movable and the target substrate fixed, or the nozzle is stationary firmly and the target substrate is moved along the nozzle to the strand in the desired course store. By in situ vulcanizing the EPDM becomes at the same time a good, durable adhesion to the target substrate as well as a high mechanical resistance of the extruded material.

The Target substrate may preferably be a disc-shaped body, for. A windowpane, on the circumference of the profile strand as a seal (possibly with a sealing lip) is extruded.

Vulcanising the extruded material By heating in situ, it is possible to achieve very preferably by reacting the profile strand in a manner known per se (US Pat. DE 42 32 554 C1 . DE 101 03 865 C1 ) is extruded into a heated forming bed which is in contact with the target substrate. The shaped bed can, for example, as described in the cited documents, a support for the target substrate (for example, a vehicle window or other cover) form, the extruded profile of EPDM is extruded as an edge window or cover seal.

deviant but there are other possibilities applicable to vulcanize the material in situ. For example would be contact, Convection and / or radiant heat applicable. More concrete could be one Hot air treatment or irradiation with microwaves, which may be immediate could follow the extrusion process. The corresponding device part would then be attached near the extrusion die. This possibility is suitable for all cases, where no mold bed of the type mentioned above is available, and in particular for the cases where a tread strand is not along the edge of a target substrate, but in its surface should be stored. However, the mentioned Heating means also used in combination with a mold bed become.

In a preferred embodiment is the pasty Material from a moving dosing unit from the high pressure, preferably gear pump, and the extrusion nozzle on the in a device fixed target substrate extruded. This can be fed by the extruder Gear pump immediately in front of the nozzle the required compression of the viscoelastic Material that enables its in situ extrusion onto substrates. Overall, this is a re-use of previously complex robotic systems also for achieves the in-situ extrusion of highly elastic materials, the in principle be retrofitted with a mobile dosing unit / high pressure pump can.

The Use of in the automotive industry for a long time common and approved rubber and / or EPDM blends according to the state The technology is readily possible. These approvals include Material specifications regarding environmental compatibility, Resistance, Recycling etc.

at the solution according to the invention, in the metering / gear pump not directly with the Plastification / the main extruder mechanically coupled can, of course, must the pump has its own drive. Preferably, a Metering device of the known type used, which is an electrical or hydraulic drive has.

When Dosage device can alternatively also z. B. a "spring storage" (pump piston, etc.) used in the preplasticized EPDM, then the nozzle supplied becomes.

In in this regard Further requirements arise from that of the extrusion die as a profile strand used or stored mass flow may not always be constant got to. Possibly. even works the nozzle even in intermittent operation while preferably passes through the plasticizing unit (the extruder).

One would like to be able to use extrusion nozzles with variable cross-sections, if required, in order to be able to produce certain special cases of the profile cross-sections to be extruded ( DE 196 04 397 C1 ).

The Invention has also solved the problem arising from the occurring Differences between the mass flow exiting the extruder, and the mass flow coming from the gear pump and the extrusion nozzle ultimately delivered in situ results. With a pressure-resistant hose can not worked here, but you see after the invention a buffer area in which the mentioned mass flow deviations between plasticizing and extruding can.

Basically the (degassed) EPDM material coming from the plasticizing unit (the Extruder), flexible, but strong enough to be run as a strand. The invention therefore sees a "free" leadership this strand between the exit from the extruder and the inlet in the metering before, in the case of temporarily lower consumption the dosing significant length differences and volumes can be buffered. Basically needed the strand in this area no particularly precise leadership, but can, for example sag whereby by suitable, height-adjustable suspensory or bases On the one hand prevents breaks and on the other hand always a defined Feed to the metering device remains ensured.

One very advantageous means for guiding this strand can be a flexible guide with tube cross-section, its in contact with the strand coming inner surfaces if possible must be equipped with low friction.

In an advantageous inventive implementation of this guide according to the invention whose outer shell is at least formed in the direct flow area to the metering and working in the field of the latter leading robot of one or more consecutive coil springs whose free interior is greater than the cross-section of the strand.

All Preferably be rolled on the turns roles. The Rollers reduce friction to negligible levels, and so do the Influence of the leadership on the outer skin of the strand. This execution has all the required Properties for quasi-free guidance the strand between the plasticizing unit and the metering device. The coil spring leaves can bend easily elastically, can all movements of a Robotic arm follow, and can also change the length to a limited extent take up. It can also be easily hung with eyelets between the Rolls can be wound up.

The guide may include multiple sections with such coil springs. In addition, you will to compensate for larger buffer lengths in the strand course also provide at least one free section with the corresponding one Free space in which loops of the strand can form. bases in this free section can If necessary, also formed by short sections of the aforementioned coil spring guide which are attached to mobile (rope) suspensions.

Further Details and advantages of the subject invention go out the drawing of an embodiment and their detailed description below.

It show in a simplified, not to scale representation

1 a schematic overall view of a device according to the invention for extruding plastics,

2 a more detailed schematic view of an example of a free and length variations buffering guide a flexible strand of material,

3 a partial view of an enveloping guide means for the material strand,

4 a frontal view of the guide device 3 .

5 a detailed view 3 .

6 a detail from an extrusion workstation.

According to 1 includes a device 1 for extruding profile strands onto a substrate 2 (Here, a vehicle window pane with a substantially trapezoidal outline) a plasticizer or extruder 3 at the 4 Elastomeric raw materials can be supplied. From the delivery outlet of the extruder 3 occurs a plasticized and degassed strand 5 of the EPDM material, which is guided freely running with later discussed in more detail guide means. At one or more points 6 the strand and its guide means are movably supported (for example via ropes) or suspended. Unlike the prior art mentioned at the outset, no flexible, pressure-resistant hose is necessary for guiding the strand.

The strand 5 thus becomes the entrance of a metering device or high pressure pump 7 fed, which has its own, not shown drive. In particular, this pulls the strand 5 even one (for example, using an integrated, powered feed roller, which acts on the strand). To the outlet of the high pressure pump 7 turn is an extrusion nozzle 8th connected. This leaves the pasty mass emerge in a conventional manner as a shaped profile strand with a predetermined cross-section and places it on the substrate 2 from. The latter is by means of a holding device 2H stationary fixed relative to the spatially freely movable extrusion die.

Although such an extrusion die could in principle also be guided manually, with suitable weight reduction, a mechanized handling of the extrusion die is required for the industrial production of profile strands with precisely defined progressions and cross sections 8th in addition to the high-pressure pump 7 to prefer. This handling is here in the form of a movable arm of a relative to a base 9 spatially movable and programmable in a conventional manner handling machines 10 realized.

At its free end is the high pressure pump 7 attached. If necessary, you will be a relative pivoting and / or rotational mobility of the high-pressure pump 7 opposite the machine 10 provide.

The extrusion nozzle 8th can at the high pressure pump 7 fixed or - preferably - also pivotally or rotatably movable, possibly about several axes, be arranged controllable.

For details of the nozzle 8th and their possibly movable storage, however, need not be discussed in more detail here, since they can be assumed to be known (see also the prior art mentioned at the beginning).

The same applies to the basic structure of the high-pressure pump. Again, reference is made to the literature mentioned above. The connections for the drive of the high-pressure pump 7 can over the arm of the handling machine 10 or be supplied independently movable. The control of any rotary and part-turn actuators between the high pressure pump and the machine arm is preferably performed on the latter.

As a result, after inserting a substrate 2 in the holding device 2H and corresponding programming of the handling machine and possibly the drives of the extrusion die 8th by driving the extruder 3 a continuous supply of a strand of a pasty mass through the hose 5 to self-feeding high-pressure pump 7 generated. It compresses and plasticizes the mass and then presses it through the extrusion die 8th out. This is possibly after a certain lead in a conventional manner, for example, along the outer edge of the substrate 2 led there to store a profile strand with a predetermined cross-section at least along a portion of this edge, possibly over several sections or frame-like around the entire circumference of the substrate around. This profile strand can form a seal, a mounting profile, a centering aid (in lip shape) and the like in a manner known per se.

The details of the deposition of such a profile strand in a heated mold bed here also need not be shown in detail, as they readily the document mentioned above DE 42 32 554 C1 can be removed. Of course, the heating or temperature control of the shaped bed will have to be adapted to the process described here and the rubber or EPDM material, so that the latter is vulcanized in accordance with the material. It is also conceivable to use a non-heated forming bed and to otherwise bring the EPDM material to the temperature required for vulcanization.

Of course you can this process but also for depositing profiles in the surface of a substrate be used, then for vulcanizing other means than one Form bed (hot air, Microwave and the like.) Can be used.

2 shows a more detailed schematic view of an example of a free guidance of the extruder 3 emerging strand 5 on a generally designated "B" free conveyor section, which is provided for buffering or "balancing" the already mentioned operational mass flow and length variations.

The one from the extruder 3 emerging strand 5 first comes in free slack on a roller guide 11 , This includes a frame 12 and a rotatable and height-displaceably mounted therein 13 , The latter preferably has two flanges, between which the strand is also guided laterally. The altitude of the roll 13 in the frame 12 can be adjusted if necessary with an actuator (not shown) (indicated by a double arrow).

From the role 13 the strand is running 5 off to a detection or measuring device 14 , This includes, for example, buttons or sensors 15 with which the current altitude of the continuous strand 5 is detected.

From the detection device 14 out of the strand 5 to a stationary inlet flange 16 , to the inlet end of a longitudinal and radial guide 17 connected. This encloses unpressurized the further course of the strand 5 until its entry into the metering device 7 ,

Obviously, by raising and lowering the roll 13 in the frame 12 a variable, depending on the altitude of the role 13 greater or smaller strand length between exit from the extruder 3 and the inlet flange 16 the enveloping leadership 17 be absorbed (buffered) without leaving the extruder 3 change outgoing mass flow.

With the signals of the detection device 14 / 15 On the one hand, the altitude of the role 13 on the other hand, but also the speed of the extruder 3 to be controlled. For example, you will reduce the extruder speed, if by the height adjustment of the role 13 On the whole, this is a highly flexible buffer area for the fluctuations in material consumption at the extrusion die 8th educated. At the same time it is ensured that the strand material in the region of the inlet flange 16 is always kept at a suitable amount of slack so that strand breaks are prevented.

In the area of the detection device 14 or of the inlet flange 16 Of course, if necessary, further support elements (rollers) can be provided, which possibly support the self-closing of the high-pressure pump.

3 shows a section of an example of a simple embodiment of the guide 17 , This comprises as base or scaffold an elongated coil spring 18 (only a short section of it is shown here). Their free inner diameter or inner space is greater than the maximum diameter or cross section of the strand 5 , Consequently, the strand can 5 the interior of the coil spring 18 run through. His direction is indicated by an arrow on the left. A dashed right arrow indicates that this guide 17 course could be run in the opposite direction and in changing feed direction.

So when contact between the strand 5 and the turns of the coil spring 18 As little as possible friction losses occur on the turns roller body or better - considering their real small size - wheels 19 threaded, which can rotate freely in both directions around the turn.

The rolls 19 are sufficiently close to each direct contact of the strand 5 to prevent with the spring coils. At the same time, they are kept at such a mutual distance that they can not block each other.

At a base 6 (as in 1 indicated) can be between two rolls 19 a tab 20 be threaded, on which the coil spring 18 can be hung. Such bases can also - different from 1 Be self-mobile, and in particular on the robot arm 10 be arranged. With these measures, a good connection of the flexible leadership 17 to the robot arm 10 reached.

It should be made clear that this leadership 17 has nothing in common with known screw or spiral conveyors, since it is not intended, the coil spring 18 even to use for the propulsion of the strand.

4 shows for clarity a frontal or sectional view of a turn or coil of the helical spring 18 (neglecting the pitch of the screw and the resulting perspective distortions) with threaded rollers 19 and the strand led in it 5 ,

5 shows a particularly advantageous embodiment of the rolls 19 , Accordingly, these are each in several parts with a directly on the spring wire 18 threaded inner sleeve 19.1 and the freely rotatably mounted but axially fixed roller body 19.2 executed. The inner sleeve 19.1 that does not have to spin is slightly longer than the reel body 19.2 and stands on both sides before this. Their inside diameter is dimensioned so that they can be threaded over the helices of the coil spring wire without tilting.

The roll bodies can be recognized 19.2 Do not touch even if adjacent inner sleeves 19.1 come into direct contact. This can, for example, in twisting the coil spring 18 occur during certain movements of the robot arm, but does not disturb the free passage of the strand due to the design of the rolls 5 ,

A single or multiple consecutive sections of virtually any length of such a guide 17 connect the inlet flange 16 with the input of the dosing device 7 , This takes the lead 5 and leads him after re-plasticizing the extrusion die 8th to.

This type of leadership 17 can with virtually little resistance almost any spherical movement of the robot arm 10 Follow without the passage of the strand 5 to block or obstruct. The spring coils are sufficiently stiff, on the one hand not to narrow their inner diameter excessively and on the other hand, the rolls 19 on adjacent turns not to get in mutual contact. At the same time they are in the longitudinal extension of the coil spring 18 so elastic that they can also accept relatively small bending radii, and in addition can absorb in principle even minor changes in length. The thickness and rigidity of the spring wire is of course to be determined as needed. It is understood that the elastic deformation forces of the spring must not affect the work and positioning accuracy of the robot.

6 Finally, schematically shows the immediate environment in the working field of the extrusion die 8th , The monolithic disk 2 is in a here designed as a mold bed substantially according to the prior art holding device 2H inserted. The mold bed consists here in a conventional manner, for example, two half-forms 21 and 22 at a parting line 23 firmly, but releasably connected. The side edge of the disc 2 rests on an unevenness compensating circumferential or at least all with a profile strand to be provided sections of this edge covering sealing pad 24 and is pressed in a manner not shown (indicated by a downward arrow) on this.

The half forms 21 and 22 as well as the inserted side edge of the disc 2 form in a known manner an open cavity 25 , which can be used to form a profile strand. This cavity 25 can have over its longitudinal extent changing cross sections, so that the resulting profile cross-section is performed with different cross-sections. These cross-sections can, for example, form special lip geometries, special formations on slice corners or further type-specific adaptations to the subsequent installation environment.

As in 6 Recognizable, the tread strand can both on one of the main surfaces of the disc 2 as well as their front edge are formed across. He thus forms a framework for the disc 2 , where by "frame" here are meant frame sections or completely encircling frame profiles.

In the mold halves 21 and 22 are here only schematically schematically without electrical connections indicated heating resistors 26 intended. These make the heating of the mold bed to a suitable temperature for vulcanizing the profiled strand stored in the cavity and thus also its adhesion to the pane 2 for sure.

at monolithic glass panes or others in terms of working temperature uncritical substrates, the temperature of the relatively cold (about 60 up to 100 ° C) from the possibly heated nozzle exiting EPDM material for vulcanization / crosslinking to about 160 to 220 ° C elevated become. For temperature-sensitive substrates, eg. B. laminated glass with a plastic interlayer, it may be necessary the vulcanization temperature to lower values, what if necessary adjustments of the specially used EPDM material required.

The nozzle 8th can along the slit-shaped opening of the cavity 25 over the disc surface - perpendicular to the plane in 6 - be guided while plasticized rubber or EPDM material under high pressure in the virtually pressureless cavity 25 Fill. The resulting profile strand has the shape of the bed, the edge of the disc and the edge of the continuous extrusion die 8th defined, possibly in the longitudinal course variable cross-sectional shape. It may extend like a frame over the entire circumference of the window pane or even over one or more sections. The extrusion die can not only produce continuous continuous runs, but can also be deposited from the substrate and / or from the mold bed and reused at another location.

One surface of the extruded profile produced in this way closes flush with the main surface of the window pane lying outside in the installation position 2 at. He thus serves both as a general seal and for closing a gap formed between the outer edge of the window and the edge of a body opening. It can also, as indicated here, leak in a lip which protrudes in extension of the main surface of the disc from the edge.

When the substrate is a composite disc of at least two face-to-face rigid disks bonded by a (usually thermoplastic) adhesive layer or film, the in-situ extruded and cured profile strand would form the outer edge of the adhesive layer as well as one or both end edges of the rigid disks cover. As with the in DE 101 03 865 C1 described method, an adhesion of the profile strand can be avoided at one or both of the end edges here, if the intermediate layer is not to be sealed by him. It is understood that in this case a sufficient basis of adhesion on the main surface of the disc is to be created.

Of the Extruded profile can be extruded directly in situ onto the disk surface be, or on a previously applied intermediate layer, for example an adhesion promoter or primer layer and / or an opaque Color layer (not shown here), acting in a known manner shielded from UV radiation on the material of the profile strand. It It should be noted that in all cases no separate bonding of the extruded profile with additional To provide adhesives, but that the extruded material directly on the disk surface or the intermediate layer attached and then vulcanized in situ.

Deviating from the presentation of 6 The profile strand can also be formed outside of a cavity, that alone the nozzle 8th gives it the desired cross-sectional shape. This cross-sectional shape can then also include, for example, a cantilevered elastic lip, which has a Spaltabschluss- and sealing function and possibly also a centering function.

Claims (33)

Process for extruding high-viscosity elastomers onto substrates ( 2 ), wherein the plasticized elastomer by means of a nozzle ( 8th ) as a profile strand on a substrate ( 2 ), characterized in that one of the nozzles ( 8th ) upstream metering device ( 7 ) non-vulcanised rubber and / or EPDM materials in the form of a continuous strand ( 5 ) are preferably supplied degassed and are vulcanized in situ after the adhesive depositing on the substrate. Method according to claim 1, characterized in that the dosing device ( 7 ) with the nozzle ( 8th ) with respect to the substrate ( 2 ) and the substrate ( 2 ) is guided for depositing the profile strand in a predetermined path of movement along the nozzle along. Method according to claim 1, characterized in that the dosing device ( 7 ) with the nozzle ( 8th ) is movably arranged and for depositing the profile strand in a predetermined trajectory on the substrate ( 2 ) is guided along. Method according to one of the preceding claims, characterized in that as metering device ( 7 ) one with the extrusion die ( 8th ) is used locked high-pressure, in particular gear or Schneckenzahnradpumpe. Method according to one of the preceding claims, characterized in that the strand ( 5 ) between the plasticizing unit ( 3 ) and the dosing device ( 7 ) is guided at least on a limited section of free and variable length to compensate for fluctuations in the mass flow. Method according to claim 5, characterized in that the strand ( 5 ) via at least one movable roller ( 13 ) to provide a buffer area for length variations. Method according to claim 5 or 6, characterized in that in the area of free guidance by means of a detection device ( 14 ) continuously detects the slack height of the string, and that the signals of the detection means are used to control the instantaneous buffer length of the string. Method according to claim 5 or 6 or 7, characterized in that the strand ( 5 ) is driven and braked as required in the region of the free guide by means of a guide device. Method according to one of the preceding claims, characterized in that the strand ( 5 ) of the dosing device ( 7 ) by a flexible, without pressure enveloping longitudinal guide ( 17 . 18 ) is supplied. A method according to claim 9, characterized in that the longitudinal guide by at least one coil spring ( 18 ) is formed with an inner diameter which is greater than the cross section of the strand ( 5 ). Method according to one of the preceding claims, characterized characterized in that the profile strand after application in situ by heat by means of contact and / or convection heat and / or radiant heat (for Example microwaves) is heated to vulcanization. Method according to one of the preceding claims, characterized in that the profile strand in contact with the substrate ( 2 ) and with a latter receiving form bed ( 21 . 22 ) is stored, wherein the mold bed is controlled as an in-situ vulcanizing controlled on a vulcanizing the profile strand favorable temperature. Method according to one of the preceding claims, characterized in that on the substrate before depositing the strand ( 5 ) a primer layer is applied in the area covered by the strand. Device for extruding high-viscosity elastomers onto substrates, in particular on window panes ( 2 ), with an extruder ( 3 ) for producing and conveying a pasty mass produced from the elastomers to an extrusion die, in particular for carrying out a method according to one of the preceding claims, characterized in that in front of the extrusion die ( 8th ) a feeding metering device ( 7 ), in particular a high-pressure gear pump, for compressing one of them from the extruder ( 3 ) as strand ( 5 ) is arranged pasty and preferably degassed rubber or EPDM mass, and that between the extruder ( 3 ) and the dosing device ( 7 ) a conveying section (B) with free guidance of the continuously emerging from the extruder strand ( 5 ) is provided at least on a part of its length. Apparatus according to claim 14, characterized in that the extrusion die ( 8th ) directly with the high-pressure pump ( 7 ) is rigidly blocked. Device according to one of the preceding device claims, characterized in that it comprises an automatic handling device ( 10 ) for guiding one of the high-pressure pump ( 7 ) and the extrusion die ( 8th ) formed along a predetermined path for creating a profile strand. Device according to one of the preceding device claims, characterized in that in the region (B) at least one length compensation device ( 11 ) is arranged to eliminate temporary differences in the mass flow from the extruder ( 3 ) and in the high-pressure pump ( 7 ). Device according to one of the preceding device claims, characterized in that in the region (B) at least one detection means for the instantaneous amount of slack of the strand ( 5 ) and which generates signals for controlling the length compensation in the region (B). Device according to one of the preceding device claims, characterized in that in the region (B) at least one drive and / or braking device for the strand ( 5 ) is arranged to its feed rate to the high-pressure pump ( 7 ). Device according to one of the preceding device claims, characterized in that in the running direction of the strand ( 5 ) on the region (B) a pressure-enveloping this guiding device ( 17 ) is arranged. Device according to claim 20, characterized in that the guiding device ( 17 ) at least one coil spring ( 18 ), whose light interior is greater than the cross section of the strand ( 5 ). Apparatus according to claim 20 or 21, characterized in that the enveloping guide ( 17 . 18 ) with roller bodies ( 19 ) for rolling contact with the strand ( 5 ) Is provided. Device according to claim 22, characterized in that the roller bodies ( 19 ) on the turns of a coil spring ( 18 ) of the enveloping leadership ( 17 ) are threaded. Device according to claim 23, characterized in that the roller bodies ( 19 ) in an inner sleeve ( 19.1 ) and a rotatably mounted, axially fixed roller body ( 19.2 ), wherein the inner sleeve ( 19.1 ) on both sides over the reel body ( 19.2 ) protrudes. Device according to one of the preceding device claims, characterized characterized in that it comprises means for heating in situ the deposited profile strand having contact, convection and / or radiant heat. Device according to one of the preceding device claims, further comprising a fixed or movable holding device ( 2H ) for fixing the substrates ( 2 ), to which by means of the extrusion nozzle ( 8th ) Profile strands are to be stored. Device according to claim 26, characterized in that the holding device ( 2H ) a mold bed ( 21 . 22 ) comprising an edge of the substrate ( 2 ) and on the profile strand next to the substrate ( 2 ) can be stored for shaping. Device according to claim 27, characterized in that the shaped bed ( 21 . 22 ) with heating devices ( 25 ), which allow the vulcanization of the extruded profile strand. Substrate, in particular window pane, with a in situ by extrusion in direct contact with one of its surfaces or adhering to a pre-coating of the surface by in-situ extrusion filed profile strand of a vulcanized rubber-elastic Material, in particular of EPDM, wherein the profile strand with a over its longitudinal extension constant or variable cross section accomplished and by a heat treatment vulcanized in situ. Substrate according to Claim 29, characterized that there is one for the gluing in a body opening prepared vehicle window pane is made of glass or plastic, with the extruded profile along the outer edge this disc provided as a seal against the edge of the body opening is. Substrate according to claim 30, characterized in that that the profile strand flush and / or gap-covering to the surface side lying in the installation position the window pane connects. Substrate according to one of the preceding claims 29 to 31, characterized in that the cross section of the profile strand a cantilevered, especially from the edge of a disc outward cantilever lip covers. Substrate according to one of the preceding claims 29 to 32, characterized in that it is a composite disk of at least two surface-adhesive using an adhesive layer or film connected to rigid discs, the tread strand being the outer edge the adhesive layer is covered.