FR2762799A1 - DEVICE FOR THE POST-TREATMENT OF AT LEAST ONE EXTRUDED AND CALIBRATED AND / OR COOLED OBJECT, AS WELL AS ITS MANUFACTURING METHOD - Google Patents

Abstract

The invention relates to a device for the subsequent treatment of at least one extruded and calibrated and / or cooled object (8). This object, in particular a plastic profile, is produced in its cross section by at least a first partial section. (27) with a hollow profile and at least one additional partial section (28) connected to the latter in a full profile. The treatment device (13) serves to introduce thermal energy into the object (8) and for this purpose has a heating channel (26) oriented in the longitudinal direction of the object (8) for passing a medium (29) heated to a temperature above 70 ° C. The invention is applicable in particular in the field of plastic profiles.

Description

The invention relates to a device for the subsequent treatment of

  at least one extruded and calibrated and / or cooled object, in particular a plastic profile which, in its cross section, is produced by at least a first partial section with a hollow chamber profile and at least one additional partial section connected to this in a full profile, with a processing device to introduce

  of thermal energy in the object.

  To produce profiles which cannot be deformed or which have a certain straightness, it is already known by the "Kunststoff Taschenbuch" by Hansjûrgen Saechtling, edited by the Carl Hanser Verlag, Mnich, Vienna, 24th edition, to combine temperature balancing devices specific to the extruded object and thus manage to introduce heat over a large area therein. In addition, it is already known to combine with individual profile sections of plastic profiles clean thermal radiators, also for introducing heat into the object. In all these devices respectively known methods, it has been very difficult to achieve perfect straightness of

  the object produced in its longitudinal direction.

  The subject of the present invention is the creation of a processing device as well as a method for the subsequent treatment of partial sections of the cross section of objects to obtain sufficient straightness and avoid deformation in the direction.

longitudinal of it.

  This object is achieved in accordance with the invention in that the treatment device has a heating channel oriented in the longitudinal direction of the object for the passage of a medium heated to a temperature above 70 C or is made to release energy radiation with a view to heating the additional partial section of the object to a temperature above 70 C. This treatment device has the advantage that by a targeted supply of temperature in at least one partial section of the cross section of objects a subsequent targeted introduction of heat takes place which allows an equalization of the tension between the different partial sections and to achieve a straightness related thereto respectively an embodiment

undeformable of the object.

  According to other characteristics of the invention, a width measured in a plane oriented perpendicular to the longitudinal direction of the object of a rinsing channel produced between the additional partial section of the object and the walls of the heating channel is roughly the same size approximately over most of the cross section, and the width of the flushing channel is between 0.2 mm and 20.0 mm, however preferably between 0.5 mm and 3.0 mm respectively 5.0 mm, which allows a continuous flow relative to the

  quantity and / or pressure and the temperature linked to it

  this evenly towards the object.

  According to another characteristic of the invention, a dimension of the heating channel oriented towards the first partial section of the object, in a plane oriented perpendicular to the longitudinal direction of the object, corresponds in a transition zone approximately to a dimension in cross section of the object, which makes it possible to avoid a thermal load applied to the first partial section of the object by a seal in the transmission zone and consequently an additional heating and a

new stretch linked to that.

  According to other features of the invention, the direction of flow of the medium passing through the heating channel is opposite to the direction of extrusion, and the direction of flow of the medium passing through the heating channel is identical to the extrusion direction, which allows you to individually adjust or act on the introduction of heat into the additional partial section of the object

depending on the process.

  According to another alternative embodiment of the invention, there is a pressure difference over the longitudinal extension of the heating channel by which the heated medium is conveyed through the

heating channel.

  According to another advantageous embodiment of the invention, there is a higher pressure in a medium supply zone in the heating channel than a pressure in a medium discharge zone from the heating channel, which determines a precise direction of flow for the medium from the supply zone to the evacuation zone at

inside the heating channel.

  According to other characteristics of the invention, the medium in the supply zone in the heating channel has a higher pressure than the pressure of the ambient air, and the medium in the discharge zone of the heating channel. heating, has a pressure lower than the ambient air pressure. This makes it possible to determine on the one hand, the direction of flow and on the other hand, the quantity and the heat supply linked thereto to the partial section to be heated of the object, of a

simple way.

  According to various embodiments of the invention, it is arranged upstream of the supply channels, a common channel, it is disposed between the channel and at least one supply channel an adjustment device for adjusting and / or metering an amount of passage and / or pressure of the medium, it is associated with the heating channel in the treatment device at least one supply channel for the supply of the medium, the heating channel is in flow connection by several distribution channels with the supply channel, the distribution channel is angularly oriented at an angle relative to the longitudinal extension of the treatment device and the angle is identical to or less than 90 relative to the direction of passage of the medium in the heating channel . Thus, the supply of the medium to the heating channel in the treatment device can be finely adjusted respectively regulated which makes it possible to send to various surface sections of the partial section to be heated from the object individually a certain amount of heat or to introduce this

In this one.

  According to other advantageous embodiments of the invention, there is arranged upstream of the supply channel and / or the channel at least one heating device for the medium, and the medium present in the supply zone in the heating a temperature between 100 C and 300 C. This makes it possible to determine

  in a simple way the quantity of heat brought into the medium.

  According to other characteristics of the invention, the evacuation zone is connected by a bypass to a vacuum generating unit, the bypass for the medium is connected to a heat exchanger, a supply conduit for the medium opens into the supply zone and is further connected to the heat exchanger, there is arranged in the evacuation zone of the middle of the heating channel at least one individual channel which is connected by an intermediate channel to a collecting channel, and between the intermediate channel and the collecting channel there is an additional adjustment device for adjusting and / or metering a quantity of passage and / or a pressure of the medium. This makes it possible to achieve an economical process sequence for heating the additional partial section since it is thus possible to reintroduce a certain heat recovered from the medium already heated in the medium brought into the supply zone, which makes it possible to minimize the power of

  heating of the heater.

  According to a further advantageous development of the invention, the flow rate of the medium in the heating channel respectively in the rinsing channel is greater than 1 m / s and the flow of the medium in the heating channel respectively in the channel rinsing is turbulent and therefore a sufficient amount of medium is conveyed through the heating channel respectively the rinsing channel and a frequent exchange of the medium can be obtained at the surface

  of the partial section to be heated of the object.

  According to another embodiment of the invention, there is arranged directly downstream of the processing device in the direction of extrusion, a configuration device for the transformation and / or the deformation and / or the subsequent calibration of the additional partial section of the object, which allows, following the heating operation to proceed to a configuration and / or subsequent calibration which allows cost savings relating to the extrusion tool or the calibration as a result of

simpler forms.

  The invention also relates to a method for the subsequent treatment of at least one determined object, as to its external dimension, from a molten flow by extrusion and subsequent calibration and / or cooling, in particular from a profile made of material. synthetic, which is produced, in cross section, by at least a first partial section with a hollow chamber profile and at least one other partial section connected to it in a solid profile and to which is brought at least by zones after calibration and / or the cooling of thermal energy, in particular by using the device according to the invention. This process is characterized in that the thermal energy is mainly brought to the additional partial section of the object so that the additional partial section is heated to a temperature between 700C and 2500C. This method has the advantage that now, by the subsequent supply of thermal energy in at least one additional partial section of the object, the latter is brought to a temperature at least identical to that of the first partial section but of preferably higher which allows an equalization of the tension inside the whole of the cross section of the object by which can be obtained a practically perfect straightness of the object in its

longitudinal extension.

  According to another characteristic of the invention, the supply of thermal energy takes place by a medium heated to a temperature above 70 ° C., and by doing so a targeted supply of heat can be achieved in a cost-effective manner. the stretch

additional partial.

  According to other features of the invention, the medium flows around the additional partial section in a direction opposite to the direction of extrusion, and the medium flows around the additional partial section in a direction identical to the direction d extrusion which allows in a simple way to determine the supply of the amount of heat required in the additional partial section according to the course

of the process.

  According to other features of the invention, a pressure difference is established over the longitudinal extension of the heating channel, a pressure higher than a pressure is established in the medium supply zone in the heating channel pressure in the evacuation zone of the middle of the heating channel, the medium conveyed in the heating channel in the supply zone is brought to a pressure higher than the pressure of the ambient air and the medium is evacuated from the heating in the exhaust area with a pressure lower than the ambient air pressure. It is thus determined advantageously the amount of the medium supplied and therefore the amount of heat supplied to the additional partial section. According to other advantageous features of the invention, the medium is caused to pass with a flow rate greater than 1 m / s through the heating channel respectively the rinsing channel, and the medium is caused to pass from a turbulent manner through the heating channel respectively the rinsing channel which ensures an intense passage of heat from the medium to the partial section to be heated of the object. According to other advantageous characteristics of the invention, the supply of thermal energy takes place by the release of energy radiation, in particular by infrared radiation, a microwave, and the additional partial section heated subsequently. is straightened and / or deformed and / or calibrated after the heating operation, and the additional partial section straightened and / or deformed and / or calibrated afterwards is cooled

  and / or caused to harden in the deformed position.

  The invention will be better understood, and other aims, characteristics, details and advantages thereof

  will appear more clearly during the description

  Explanatory which will follow refers to the attached schematic drawings given only by way of examples illustrating embodiments of the invention and in which: - Figure 1 shows an extrusion installation with a processing device according to invention, in a side view and a simplified schematic representation; - Figure 2 shows the processing device according to Figure 1, in a front view, in section, along lines II-II in Figure 1 and in a simplified representation on a larger scale; FIG. 3 represents the processing device according to FIGS. 1 and 2, in top view and in a simplified representation on a larger scale, the object not being represented; - Figure 4 shows another possible embodiment of a processing device according to the invention in a front view, partially in section, along the lines IV-IV in Figure 5 and in a simplified representation on a larger scale; - Figure 5 shows the processing device according to Figure 4, in a top view and in a simplified representation on a larger scale, the object not being shown; - Figure 6 shows another possible embodiment of a processing device according to the invention, in a top view and a simplified schematic representation; - Figure 7 shows the processing device according to Figure 6, in a front view, partially in section, along lines VII- VII in Figure 6 and in a simplified schematic representation; - Figure 8 shows a forming device arranged downstream of the processing device according to the invention, in a front view and a representation

simplified schematic.

  First of all, it should be noted that in the various embodiments described, the same parts will have the same reference numbers. Of

  even, the directions indicated in the description,

  like, for example, above or below relate only to the chosen representation and must be applied by analogy when changing the

  position at this new position.

  There is shown in Figure 1 an extrusion installation 1 consisting of an extruder 2, an extrusion tool 3 mounted downstream thereof as well as a calibration installation 4 and an installation of cooling 5. It is arranged downstream of the cooling installation 5, in the direction of extrusion - arrow 6 - a pulling track 7 shown diagrammatically and in a simplified manner by means of which an object 8, for example a plastic profile for window construction or the like, can be pulled from the extrusion tool 3 through the calibration facility 4 as well as the cooling facility 5 and can be cut into lengths by installations which are not shown in detail, such as

saws or the like.

  The calibration installation 4 as well as the cooling installation 5 of the extrusion device 5 are arranged respectively retained on a calibration table 9 shown diagrammatically, the calibration table 9 being supported respectively resting by rollers 10 shown d 'a simplified manner and the running rails 11 associated therewith on a contact surface 12 shown schematically. This contact surface 12 is most often a flat hall floor on which also bear the extruder 2 which can also be designated by plasticizing device as well as the pulling track 7 etc. It is arranged downstream of the extrusion tool 3 in the direction of extrusion - arrow 6 - a processing device 13 for the object 8. The processing device 13 as well as its arrangement and its operating mode and its possible embodiment

  will be described using the following figures.

  However, preferably, the treatment device 13 can be installed in different positions and also, if necessary, several times. Thus, the processing device 13 can be placed either between the calibration installation 4 and the cooling installation 5, as indicated by dashed lines, and / or it can be arranged downstream of the installation cooling 5. In the case of a multiple arrangement of different cooling baths constituting the cooling installation 5, it is also possible to arrange the treatment device 13 between them so that, upon a new entry into the additional cooling enclosure, there is a

  cooling of the additional partial section.

  The calibration installation 4 may consist of individual calibration tools, arranged one on the other.

  behind the others in the direction of extrusion -

  arrow 6 - and can be supported by a receiving plate and be carried out for example in the form of vacuum calibration, the calibration of the extruded object 8 taking place in a known manner inside the individual calibration tools. In this case, the arrangement of the vacuum slots, cooling sections and cooling bores as well as the connections thereof and the supply can take place in accordance with the prior art. This calibration can for example comprise a combination of a dry and wet calibration respectively only a complete dry calibration. In addition, an intake of ambient air, from the extrusion tool 3 to the exit of the installation of

  calibration 4 can be prevented completely.

  The cooling installation 5 for the object 8 leaving the calibration installation 4 comprises a cooling enclosure 14 which is formed by a box shown in a simplified manner and which is divided by support panels arranged in the interior space of the cooling enclosure 14 and represented in a simplified manner in zones which follow one another directly. However, it is also possible to lower the interior space of the cooling enclosure 14 to a pressure higher than the

atmospheric air pressure.

  The object 8 is preferably most often made of a thermoplastic synthetic material 15 which is in the form of granules or powder in a storage tank 16 of the extruder 2 and which is softened respectively plasticized correspondingly by means of one or more conveyor screws 17 inside the extruder 2 and which is then removed from the extrusion tool 3. This respectively softened plasticized plastic material 15 present after it leaves the extrusion tool 3 a cross-sectional shape predefined by the extrusion tool 3 which, in the subsequent calibration installation 4 is calibrated and / or cooled correspondingly until the viscoplastic object 8 is cooled on its surface enough so that its external shape is produced in a stable manner and so as to correspond to its dimensions. Following the calibration installation 4, the object 8 passes through the cooling installation 5 for additional cooling and, if necessary, for calibration to determine the final shape in section.

cross section of the object 8.

  In Figures 2 and 3, the processing device 13 shown in Figure 1 in a schematic and simplified manner is shown on a larger scale using again for the same parts

  the same reference numbers.

  The processing device 13 has a base body 18 which, looking in the direction of extrusion - arrow 6 - has upper and lower side walls 19, 20 respectively side walls 21, 22 extending laterally between them . With these side walls 19 to 22 are associated, at the end zones thereof, front walls 23, 24, the front wall 23 being disposed, looking in the direction of extrusion, in front of the front wall 24. From this done, the front wall 23 is associated with an entry area and the other front wall

  24 to the outlet zone of the treatment device 13.

  The external shape of the base body 18 is determined by the arrangement of the side walls 19 to 22 as well as the front walls 23, 24. In addition, the base body 18, looking in the direction of extrusion, has a

  length 25 between the front walls 23, 24.

  In this exemplary embodiment, there is arranged in the vicinity of the lower side wall 20 of the base body 18 a heating channel 26 extending over the entire length 25 which therefore extends from an entry zone up to '' at an exit zone of the object 8 between the front wall 23 and the other front wall 24 of the

processing device 13.

  The whole of a cross section of the object 8, in this exemplary embodiment, therefore consists of at least a first partial section 27 as well as of

  minus a second partial section 28 connected to the latter.

  In this case, preferably, the first partial section 27 is produced in the form of a hollow profile and the additional partial section 28 preferably as a full profile. Due to the extrusion operation, the object 8 presents during its exit from the extrusion tool 3, on

  its cross section at about the same temperature.

  However, this changes directly after entering the calibration facility 4 where it is removed from the additional partial section 28, due to the possibility of cooling on all sides, a greater amount of heat compared to the first partial section 27 with hollow chambers which can only be well cooled in the vicinity of the outside. Thus, the object 8 leaving the calibration facility 4 can already be completely cooled in its additional partial section 28 and its structure can be solidified, and the first partial section 28 can have a much higher temperature heat respectively, whereby due to the additional cooling of the first partial section, a shrinking operation takes place in the vicinity of the first partial section 27 relative to the additional partial section 28. This temperature difference between the two partial sections 27, 28 can be further reduced during the passage through the cooling installation 5, but also in the cooling installation 5, complete cooling of the first partial section 27 preferably takes place only in the edge areas thereof. It is difficult to completely dissipate the heat from the interior space of the hollow profile. The first partial section 27, before entering the treatment device 13, may have at its outside side a temperature between 15 C and 30 C and the additional partial section 28

  a lower temperature, between 6 C and 20 C.

  A temperature in the interior space of the hollow chamber can on the other hand be much higher than the

outside temperature.

  Because of the early cooling of the additional partial section 28 relative to the first partial section 27, there is usually a longitudinal stretching of the entire object 8, the center of curvature of the stretching being most often located next to the first section partial 27 of the object 8. This stems from the fact that it is removed in the first partial section 27 relative to the additional partial section 28, later the heat contained in the object 8 and this results in a different shrinking operation between both

partial sections 27, 28.

  Because of these physical data, it is brought to the additional partial section 28 during its passage through the treatment device 13, between the inlet area and the outlet area in the heating channel 26, a certain thermal energy, this thermal energy being calculated so that the additional partial section 28, during its passage through the treatment device 13, is subsequently heated to a temperature between 70 C and 250 C, preferably between 100 C and 200 C. This temperature depends also of extruded material, the above indications preferably relating to

polyvinyl chloride (PVC).

  This supply of thermal energy can be done in various ways and can be carried out for example by a supplied medium 29, such as for example pressurized air, in particular higher than ambient pressure, which is brought in during the passage through a

  heating device 30 at the desired temperature.

  This heating device 30 can be formed by the most diverse heating elements, such as for example a heating diode supplied with electrical energy and through which the medium 29 is passed. In this case, both the quantity of the medium supplied 29 as the heating power, therefore the amount of heat supplied to the through medium 29 can be adjusted independently of one another. In the embodiment shown here, two heating devices 30 for the passing medium 29 are associated with the base body 18, the supplied medium 29 being brought by supply and distribution channels 31, 32 arranged differently to the distribution channel. heating 26. In this case, the

  heating 30 is arranged upstream of the supply channel 31.

  As best seen from the representation in FIG. 3, the supply and / or distribution channels 31, 32 are oriented at an angle 33 relative to the longitudinal extension, respectively the length 25 of the base body 18 of the treatment device 13 in a direction of passage opposite to the direction of extrusion, which is identical, preferably however less than an angle of 90 to the direction of flow of the medium 29 in the heating channel 26. It is thus formed an orientation of the supply and / or distribution channels 31, 32 starting from the front wall 24 in the direction of the front wall 23, therefore opposite to the direction of extrusion. Due to this orientation, the medium 29 flows through the heating channel 26 in the direction opposite to the direction of extrusion and therefore the object 8, after its exit from the processing device 13 is no longer exposed to heat stress. Obviously, it is also possible, if this was necessary for reasons relating to the process technique, to choose the direction of flow of the medium 29 through the heating channel 26 in the direction of extrusion, arrow 6. According to the direction of flow chosen for the medium 29, the arrangement of the heating device 30 must be chosen in a corresponding manner and thus, in the case of a flow direction opposite to the direction of extrusion, the device heater 30 is arranged in the outlet area, therefore close to the front wall, and in the case of a flow in the same direction as the direction of extrusion, the heater 30 is arranged in the area

  inlet, therefore near the front wall 23.

  Instead of the medium 29 described before in the form of air, it is also possible to use any other gaseous and / or liquid medium to introduce

  heat in the additional partial section 28.

  Independently of this, it is also possible to associate with the heating channel 26, on its longitudinal extension, means for the release of an energy radiation to bring the additional partial zone 28 also again to a temperature above 70 C, preferably between 100 C and 200 C respectively 250 C. This can take place, for example, by infrared radiation, by microwave or a

other energy radiation.

  The medium 29 brought to pass through the heating device 30 must also be heated to a temperature above 70 C, preferably to a temperature between 100 C and 200 C to bring to the additional partial section 28 a sufficient amount of heat. To achieve greater heating of the additional partial section 28, the medium 29 can also be heated to a temperature between

   C and 300 C in the heater 30.

  As best seen from the representation in FIG. 2, the heating channel 26, looking parallel to the direction of extrusion, has several walls 34 which are arranged in accordance with the contour shape of the additional partial section 28 to inside the base body 18 as well as parallel to the longitudinal extension of

  the object respectively to the direction of extrusion.

  Thus, a cross section of the heating channel 26 produced perpendicular to the direction of extrusion respectively to the longitudinal direction of the object 8 corresponds roughly to an embodiment in cross section of the additional partial section 28 of

object 8.

  Advantageously, a width 35 measured in a plane oriented perpendicular to the longitudinal direction of the object 8 of a rinsing channel 36 produced between the profile walls of the additional partial section 28 of the object 8 and the walls 34 of the heating channel 26 is about the same size over most of the cross section. In a transition zone 37 between the first partial section 27 and the additional partial section 28, a dimension of the heating channel 26 in the plane oriented perpendicular to the longitudinal direction of the object 8 corresponds approximately to a dimension in cross section made of the object 8 which allows in this transition zone 37 an outlet from the medium 29 having passed through the heating channel 26 in the direction of the first partial section 27 at least partially however preferably completely. Because of this seal, there is no heat transmission respectively, introduction of heat in

  direction of the first partial section 27.

  The width 35 described before the rinsing channel 36 is between 0.2 mm and 20.0 mm, preferably

  between 0.5 mm and 3.0 mm respectively 5.0 mm.

  Starting from the device described before for the subsequent treatment, also the process to be carried out by means of it is advantageous for the subsequent treatment of a given object 8, as for its external dimensions from a flux in fusion by extrusion and subsequent calibration and / or cooling, in particular of a plastic profile. The object 8, in cross section, has at least a first partial section 27, preferably a hollow profile and at

  minus an additional partial section 28 connected to it

  most often a full profile. During the passage of the object 8, in particular of the additional partial section 28, it is brought to the latter in the treatment device 13 a thermal energy so that the additional partial section 28 is heated to a temperature between 70 C and 250 C. However, this temperature still depends on the material

  synthetic chosen and may differ from the indications above

  above. Advantageously, the supply of thermal energy can take place through a medium 29 heated to a temperature above 70 C which preferably flows in the direction opposite to the direction of extrusion around the additional partial section. 28 in the channel

heating 26.

  Independently of this, it is also possible to erect and / or deform later the additional partial section 28 subsequently heated in the treatment device 13 after this heating operation in a clean station. This makes it possible to execute individual profile sections according to exact measurements or to bring them into a shape

  different from the form of extrusion.

  Due to the dimensions chosen for the rinsing channel 36, an intense passage of heat is achieved between the passage medium 29 and the additional partial section 28 and, as a result, by heating powers reduced respectively by an expense of reduced energy takes place rapid heating and in particular economic of the additional partial section

28 without great losses.

  It is shown in Figures 4 and 5 another embodiment of the processing device 13 on a larger scale, and for the same parts were used the

  same reference numbers as in Figures 1 to 3.

  As already described, in the embodiment shown here, the medium 29 in the heating channel 26 which again extends over the entire length 25 of the base body 18 of the treatment device 13 flows

  in the direction of the extrusion direction, arrow 6.

  The longitudinal extension of the base body 18 is determined in its length 25 by the front wall 23 arranged in an entry area 28 of the object 8 in the treatment device 13 and the front wall 24 arranged in an exit area 39 of object 8 of

processing device 13.

  To obtain the same direction of flow of the medium 29 relative to the direction of extrusion, arrow 6, a supply zone 40 of the medium 29 is disposed near the entry zone 38 respectively of the front wall 23 and a evacuation zone 41 from the medium 29 in the exit zone 39 respectively nearby

of the front wall 24.

  As best seen now in Figures 4 and 5, the walls 34 delimiting the heating channel 26 are oriented again to the additional partial section 28 of the object 8 and therefore it is produced between the outer surfaces of the section partial 28 and the walls 34 the rinsing channel 36 for passing the medium 29. In the embodiment shown here, at least one, but preferably several distribution channels 32 open into the heating channel 26 starting from the channels inlet 31 arranged here on both sides, as well as in a plane of the heating channel 26 oriented perpendicular to the direction of extrusion. In this case, the different distribution channels 32 preferably have a smaller cross section than the supply channels 31. In addition, by a multiple arrangement of the distribution channels 32 as well as due to the smaller dimension in cross section of these, an oriented and targeted introduction of heat is possible on surface sections which can be predetermined of the additional partial section 28 of the object 8. Furthermore, it is shown here that it is arranged upstream of the two supply channels 31 in the flow direction an additional channel 42 with which the supply channels 31 are in flow connection. It should be noted that the arrangement, construction and number of the channels represented here have been simply given by way of example and that these can obviously be chosen freely. In addition, multiple arrangement as well as selective channel orientation

  individual to each other is possible.

  In addition, it is shown here that in a transition zone respectively of connection between the supply channels 31 and the channel 42, there is disposed at least respectively an adjustment device 43, for example in the form of an element of positioning 44. This or these positioning elements 44 are intended to regulate, dose respectively regulate beforehand the quantity and / or the pressure of the medium supplied respectively passing through 29, starting from the channel 42 towards the various supply channels 31 individually as required. . It is thus possible to bring to each of the supply channels 31 only a determined quantity of medium 29 which allows, in accordance with the arrangement of the distribution channels 32 opening out of the supply channels 31 into the heating channel 26 a different introduction of heat on both sides in the additional partial section 28 of the object 8. In addition, by the adjusting device 43 can also be adjusted a pressure difference between the two supply channels 31 which provides a possibility additional to act on the introduction of heat into the additional partial section 28. Because of this oriented and if necessary different heat introduction into the additional partial section 28 of the object 8, it is possible to obtain in all the directions in a plane oriented perpendicular to the direction of extrusion, an indirect dressing operation of the object 8. This allows in a simple way a straightening ex act of the straightness of the entire object 8 during the extrusion process without subsequent dressing work and without

a significant production of scrap.

  The medium 29 brought to the channel 42, before entering it, can be caused to pass through the heating device 30 respectively the heating element forming the latter and heated to bring the medium 29 to the desired temperature. It is thus possible to determine the quantity of heat which is brought to the additional partial section 28 during the passage of the latter through the heating channel 26,

starting from the middle 29.

  As can be seen in FIG. 5, the different distribution channels 32 are arranged at an angle 33 relative to the direction of passage of the medium 29 through the heating channel 26 in the base body 18. In this case, the angle 33 is less than or equal to 90 which produces a predetermined direction of flow in the same direction as the direction of extrusion, arrow 6. Due to the arrangement and embodiment described before of the different channels, each relatively to the others, an oriented and predeterminable introduction of heat is carried out by the medium 29 towards the additional partial section 28 of the object 8 to bring to the latter at least in the different surface sections a certain amount of heat. Due to this subsequent introduction of heat, it is possible to obtain in a simple manner a sufficient undeformable straightness of such objects 8. Also in the embodiment described here, the medium 29 is introduced into the zone of brought 40 under a pressure higher than the ambient air pressure and therefore there is a pressure difference from the supply zone 40 towards the discharge zone 41 of the medium 29, on the extension longitudinal of the

heating 26.

  It is shown in Figures 6 and 7 another possible embodiment of the processing device 13 in a simplified and schematic manner using again for the same parts the same references

  numerical than in Figures 1 to 5.

  In the exemplary embodiment shown here, the direction of flow of the medium 29 is opposite to the direction of extrusion and therefore the supply zone 40 is arranged in the exit zone 39 of the object 8 of the device. 13 and the evacuation zone 41 from the medium 29 from the heating channel 26 in the inlet zone 38 near the front wall 23 in the base body 18. The production and arrangement of the different channels in the supply zone 40 may correspond to one of the arrangements already described in detail. However, it is essential that the various distribution channels 32 which, starting from the supply channel 31, open into the heating channel 26 are again oriented at the angle 33 relative to the longitudinal extension of the treatment device 13 , this angle preferably being identical to or less than 90 to a plane oriented perpendicular to the direction of extrusion. This gives a directed flow from medium 29 to

  inside the heating channel 26.

  The medium 29 brought into the supply zone 40, before entering the treatment device 13, is again heated by means of the own heating device 30 to the corresponding desired temperature and then arrives in the channel 42 which, in the present exemplary embodiment is again in flow connection with supply channels 31 arranged on both sides of the heating channel 26 and oriented perpendicular to the direction of extrusion. To dose or adjust the quantity of medium 29 passing from the channel 42 to the supply channels 31, the adjustment device 43 can be provided or disposed again between these two channels in the form of a positioning element 44. Starting from of the two supply channels 31, the medium 29 arrives through at least one, preferably however several distribution channels 32 associated with each of these supply channels 31 in the heating channel 26 and flows along that -this, while bringing heat in the additional partial section 28 of the object 8 towards the evacuation zone 41

  the middle 29 of the processing device 13.

  Regardless of this, it is obviously also possible to choose the direction of flow of the medium 29 so that it is equal to the direction of extrusion, and in this case, the supply zone 40 must be associated with the zone 38 of the object 8 and the evacuation zone 41 to the exit zone 39 of the object 8 of the

treatment 13.

  The discharge zone 41 of the medium 29 of the treatment device 13 is shown in a simplified manner in FIG. 7, the arrangement and the construction of the different channels being able to be similar to those of the supply zone 40. Starting from walls 34 delimiting the heating channel 26, at least one, however preferably several individual channels which can be produced in particular as bores lead in the direction respectively of an intermediate channel 46 disposed on both sides of the heating channel 26 inside of the base body 18 which open into a preferably common collecting channel 47. This collecting channel 47 is further connected by a bypass duct 48 shown diagrammatically to a vacuum generating unit 49, for example a vacuum pump 50. Regardless of this, it is also possible, in place of the individual channels 45 described before. as bores, to produce these in the form of vacuum slots which extend, starting from the walls 34 of the heating channel 26 to the vicinity of the intermediate channel 46 and which are indicated by

dashed lines.

  In addition, it is again possible to have in the transition zone between the intermediate channels 46 and the collecting channel 47 at least one, however preferably several adjusting devices 51 in the form of positioning elements 52 to be able to again dose respectively adjust the quantity and / or the pressure of the medium 29 flowing from the various intermediate channels 46 towards the channel

collector 47.

  As best seen in Figure 6, it is brought to the supply zone 40 of the treatment device 13 by a conduit 53 the medium 29 which is passed, starting from the supply zone 40 to the zone evacuation 41 through the heating channel 26 respectively the rinsing channel 37. This passage takes place by generating a pressure difference between the supply zone 40 and the evacuation zone 41 by the vacuum generating unit 49 described before. From the evacuation zone 41, the medium 29 is brought by the bypass conduit 48 to a heat exchanger 54 and then, after the passage and another heat withdrawal therein is evacuated to the environment under still preheated air. The supply conduit 53 for the medium 29 is also guided before entering the supply zone 40 on respectively through the heat exchanger 54, and when passing through it, the new medium 29 is preheated in the supply duct 53. This makes it possible for example to reduce the heating power of the heating device 30 since the amount of heat which remains in the medium 29 after passing through the heating channel 26 as a result evacuation zone 41 serves

  the preheating of the newly brought medium 29.

  Independently of this, it would also be possible to provide an at least partially closed circuit between the evacuation zone 41 and the supply zone 40 outside the treatment device 13 for the medium 29 and to compensate for leakage losses. possibly produced by a corresponding supply

fresh air.

  To minimize leakage losses during the suction operation, starting from the supply zone towards the evacuation zone 41, it can be provided both in the exit zone 39 and in the entry zone 38 respectively a clean sealing element 55 adapted to the cross-sectional shape of the additional partial section 28 which decreases or completely prevents the access of foreign air respectively an air intake towards the heating channel 26. These elements seal 55 can be made in the most diverse way and in the most diverse materials, however it is a question of obtaining a good seal between the sealing element 55 and the additional partial section 28 of the object 8 In addition, it has been found to be advantageous to have in the transition zone 37 described before between the two partial sections 27, 28 a clean additional sealing element 56 which minimizes respectively prevents comp Letely also in this zone the access of foreign air or an air intake towards the heating channel 26. In all the embodiments described before, it is essential to establish between the supply zone 40 and the zone evacuation 41 of the medium 29, & inside the treatment device 13 in the heating channel 26 a pressure difference, and on the one hand, it is possible to bring the medium 29 under pressure into the zone of brought 40 and to evacuate it from the evacuation zone 41 towards the environment and, on the other hand, to produce by a vacuum generating unit 49 in the evacuation zone 41 a pressure lower than the pressure of outside air whereby the medium 29 is again conveyed from the supply zone 40 to the zone

  discharge 41 inside the heating channel 26.

  However, a combination of the two possibilities described before for the generation of a pressure difference can be envisaged according to which the medium 29 presents in the supply zone 40 a pressure higher than the ambient pressure and in the discharge zone 41 a pressure lower than ambient pressure. It has been found to be advantageous for the manufacture of the treatment device 13 when the channels described before, apart from the distribution channels 32 oriented at an angle 33, are arranged in a plane oriented perpendicular to the heating channel 26 The dimension and / or the orientation of the different channels both in the supply zone 40 and / or in the evacuation zone 41 can be freely chosen according to the cross-sectional shape of the additional partial section 28 differently depending on the various requirements

  and is not limited to the embodiments described here.

  In addition, it is advantageous to obtain good heat transmission from the medium 29 to the additional partial section 28 to be heated, when the medium 29 is passed in a swirling flow through the heating channel 26 respectively the channel rinsing 36. In doing so, the medium 29 can already be brought into the turbulent state in the heating channel 26 respectively the rinsing channel 36. However, it is also possible to produce the vortex flow only in the heating channel 26 respectively in the flushing channel 36 and to maintain it in a turbulent state by a wide variety of means. To do this, flow velocities of the medium 29 in the heating channel 26 respectively the rinsing channel 36 equal to or greater than 1 m / s are advantageous since this makes it possible to obtain a sufficient passage of heat from the medium. 29 towards

material to be heated from the object 8.

  Another possibility for sealing the heating channel 26 in the inlet area 38 of the object 8 in the treatment device 13 is shown in FIG. 6 in the vicinity of the front wall 23 in a simplified manner by lines in phantom, the base body 18 of the treatment device 13 being disposed directly downstream of a shutter 57 of the cooling device 5. In this case, the front wall 23 is applied directly to a surface 58 of the shutter 57 and therefore the object 8 leaving the cooling installation 5 enters directly

  in the processing device 13.

  There is shown in the shutter 57 also in a schematically simplified manner a recess 59 which, both in its cross-sectional shape and in its dimensions corresponds fairly exactly to the cross-sectional dimension respectively to the dimension of the object 8. Due to this arrangement of the processing device 13 in the vicinity of the shutter 57, the sealing element 55 described before in the entry zone 38 can be omitted. In addition, due to the vacuum established inside the cooling installation 5, which is preferably higher than the vacuum in the heating channel 26, an access of ambient air, starting from the cooling installation 5 to the heating channel 26 disposed in the treatment device 13 is minimized or completely prevented. In addition, in addition, the establishment of the pressure difference between the supply zone 40 and the discharge zone 41 can be reinforced in connection with the vacuum generating unit 49 thereby increasing on the one hand the flow rate. medium 29 through the heating channel 26 and thereby also decreasing the powers

  drive of the vacuum generating unit.

  FIG. 8 shows a forming device 60 already described briefly, arranged directly after the processing device 13, in a front view and in a simplified schematic representation, this forming device 60 being able to represent, if necessary, a inventive realization

clean.

  This forming device 60, looking in the direction of extrusion, is disposed directly downstream of the processing device 13 for the subsequent transformation and / or deformation and / or calibration of the additional partial section 28 of the object 8 and it is therefore now possible in a simple way to transform and / or erect the profile sections of object 8 which have been heated during their passage through the treatment device 13 during a subsequent operation subsequently into another spatial form. It is represented in a simplified manner, by dashed lines, the cross section of the additional partial section 28 in an undeformed position with which the object 8 leaves the heating channel 26 of the treatment device 13. Directly at the Following the processing device 13 is arranged the forming device 60 in which the additional partial section 28 being in a deformable state is transformed respectively deformed into a bent or rolled position, shown in a simplified manner. This form has been chosen only by way of example, but it is also possible, for example, to perform a bonding operation respectively, other parts

  profile sections of the object 8 respectively.

  In addition, it is also possible to erect, respectively calibrate later, individual profile sections of the object 8, and it is possible in a simple way to avoid extrusion tools 3, calibration installations 4 as well as cooling installations 5 of a complicated construction and to carry out the forming, respectively precise calibration of individual sections of profile, following the subsequent heating operation in the processing device 13, in the

  forming device 60 mounted downstream thereof.

  To stabilize this additional partial section 28 following dressing and / or subsequent shaping and / or calibration in this deformed position, this partial section 28 must be cooled respectively the constitution of the structure must be brought to

solidify.

Claims (39)

IONS CLAIMS   1. Device for the subsequent treatment of at least one extruded and calibrated and / or cooled object, in particular of a plastic profile which, in its cross section, is produced by at least a first partial section with a chamber profile hollow and at least one additional partial section connected to it in a solid profile, with a treatment device for introducing thermal energy into the object, characterized in that the treatment device (13) has a channel for heating (26) oriented in the longitudinal direction of the object (8) for the passage of a medium (29) heated to a temperature above 70 C or is produced for the radiation of energy radiation in order to the heating of the additional partial section (28) of   the object (8) at a temperature above 70 C.   2. Device according to claim 1, characterized in that a width (35) measured in a plane oriented perpendicular to the longitudinal direction of the object (8) of a rinsing channel (36) produced between the additional partial section (28) of the object (8) and the walls (34) of the heating channel (26) is roughly the same size approximately over most of the cross section.   3. Device according to claim 2, characterized in that the width (35) of the rinsing channel (36) is between 0.2 mm and 20.0 mm, however preferably between 0.5 mm and 3.0 mm respectively 5.0 mm.   4. Device according to one of claims   above, characterized in that one dimension of the heating channel (26) oriented towards the first partial section (27) of the object (8), in a plane oriented perpendicular to the longitudinal direction of the object (8), corresponds in a transition zone (37) to approximately a dimension in section transverse of the object (8).   5. Device according to one of claims   previous, characterized in that the direction of flow of the medium (29) passing through the heating channel (26) is opposite to the direction extrusion, arrow (6).   6. Device according to one of claims 1 to   4, characterized in that the direction of flow of the medium (29) passing through the heating channel (26)   is identical to the direction of extrusion, arrow (6).   7. Device according to one of claims   above, characterized in that it prevails over the longitudinal extension of the heating channel (26) a pressure difference.   8. Device according to one of claims   above, characterized in that there is a higher pressure in a supply zone (40) of the medium (29) in the heating channel (26) than a pressure in a discharge zone (41) of the medium (29 ) outside the canal heating (26).   9. Device according to one of claims   above, characterized in that the medium (29) in the supply zone (40) in the heating channel (26) has a higher pressure than the pressure Ambiant air.   10. Device according to one of claims   above, characterized in that the medium (29) in the discharge zone (41) of the heating channel (26) has a pressure lower than the pressure of the ambient air.   11. Device according to one of claims   previous, characterized in that it is arranged in   upstream of the supply channels (31) a common channel (42).   12. Device according to claim 11, characterized in that it is disposed between the channel (42) and at least one supply channel (31) an adjustment device (43) for adjusting and / or metering a quantity of passage and / or a pressure from the medium (29).   13. Device according to one of claims   above, characterized in that it is associated with the heating channel (26) in the treatment device (13) at least one supply channel (31) for supplying the middle (29).   14. Device according to one of claims   previous, characterized in that the heating channel (26) is connected in flow by several channels of   distribution (32) with the supply channel (31).   15. Device according to one of claims 13   or 14, characterized in that the distribution channel (32) is angularly oriented at an angle (33) relative to the longitudinal extension of the device treatment (13).   16. Device according to claim 15, characterized in that the angle (33) is identical to or less than 90 relative to the direction of passage   medium (29) in the heating channel (26).   17. Device according to one of claims   above, characterized in that it is arranged upstream of the supply channel (31) and / or the channel (42) at least one heating device (30) for the medium (29).   18. Device according to one of claims   above, characterized in that the medium (29) has in the supply zone (40) in the heating channel (26) a temperature between 100 C and 300 C.   19. Device according to one of claims   previous, characterized in that the evacuation zone (41) is connected by a bypass (48) to a unit generator of depression (49).   20. Device according to claim 19, characterized in that the bypass (48) for the medium   (29) is connected to a heat exchanger (54).   21. Device according to claim 20, characterized in that a supply conduit (53) for the medium (29) opens into the supply zone (40) and is   further connected to the heat exchanger (54).   22. Device according to one of claims   above, characterized in that it is arranged in the discharge zone (41) of the medium (29) of the heating channel (26) at least one individual channel (45) which is connected by an intermediate channel (46) & a canal manifold (47).   23. Device according to claim 22, characterized in that there is disposed between the intermediate channel (46) and the collecting channel (47) an additional adjustment device (51) for adjusting and / or dosing a quantity passing through and / or medium pressure (29).   24. Device according to one of claims   above, characterized in that the flow velocity of the medium (29) in the heating channel (26) respectively in the rinsing channel (36) is greater than 1 m / s.   25. Device according to one of claims   previous, characterized in that the flow of the medium (29) in the heating channel (26) respectively in the rinsing channel (36) is turbulent.   26. Device according to one of claims   above, characterized in that it is disposed directly downstream of the processing device (13) in the direction of extrusion - arrow (6) a configuration device (60) for the transformation and / or deformation and / or subsequent calibration of the section   additional partial (28) of the object (8).   27. Method for the subsequent treatment of at least one determined object, as to its external dimension, from a molten flux by extrusion and subsequent calibration and / or cooling, in particular from a profile made of synthetic material, which is produced, in cross section, by at least a first partial section with a hollow chamber profile and at least one other partial section connected thereto in a full profile and to which is brought at least by zones after calibration and / or the cooling of thermal energy, in particular by using the device according to   one of claims 1 to 26, characterized in that   the thermal energy is mainly brought to the additional partial section of the object so that the additional partial section is heated to a   temperature between 70 C and 250 C.   28. The method of claim 27, characterized in that the supply of thermal energy takes place by a   medium heated to a temperature above 70 C.   29. Method according to one of claims 27 or   28, characterized in that the medium flows around the additional partial section in a direction opposite to the direction of extrusion.   30. Method according to one of claims 27 or   28, characterized in that the medium flows around the additional partial section in an identical direction to the extrusion direction.   31. Method according to one of claims 27 to   , characterized in that a pressure difference is established on the longitudinal extension of the heating channel.   32. Method according to one of claims 27 to   31, characterized in that a pressure higher than a pressure in the zone is established in the medium supply zone in the heating channel   the middle of the heating channel.   33. Method according to one of claims 27 to   32, characterized in that the medium conveyed in the heating channel in the supply zone is brought to a   pressure higher than the ambient air pressure.   34. Method according to one of claims 27 to   33, characterized in that the medium is evacuated from the heating channel in the evacuation zone with a pressure   lower than the ambient air pressure.   35. Method according to one of claims 27 to   34, characterized in that the medium is caused to pass with a flow speed greater than 1 m / s through the heating channel respectively the rinsing.   36. Method according to one of claims 27 to   , characterized in that the medium is caused to pass in a turbulent manner through the heating channel   the rinsing channel respectively.   37. Method according to claim 27, characterized in that the supply of thermal energy takes place by the release of energy radiation, in particular by a   infrared radiation, microwave.   38. Method according to one of claims 27 to   37, characterized in that the additional partial section heated subsequently is straightened and / or deformed and / or   calibrated after the heating operation.   39. Method according to claim 38, characterized in that the additional upright and / or deformed and / or later calibrated partial section is cooled and / or   caused to harden in the deformed position.