DE19709895A1 - Cooling of non=uniform cross=section extrusions used, e.g. for window parts - Google Patents

Abstract

Continuous extrusions (7) are cooled by passing them through a cooling medium in a cooling chamber at below atmospheric pressure. Means (66) are provided to remove larger amounts of heat from the surface of the parts (110-115) which carry a greater concentration of heat energy than from immediately adjacent parts (120-123).

Description

The invention relates to a device and a method for cooling and optionally Ka librate elongated, extruded plastic objects, such as those in the upper part handles of claims 1 and 26 is protected.

It is already a method for cooling and possibly calibrating elongated, continuous known extruded plastic objects - according to DE 195 04 981 A1 same applicant. In this method and the associated device, the is too cold lumbar and calibrating object during its movement in the longitudinal direction or Ex trusion direction in successive partial areas of its outer surface an un exposed to different vacuum. The cooling in the successive areas with different vacuum takes place through a liquid cooling around the object medium with which the heat to be extracted to cool the object is dissipated. The different areas are separated from one another in a direction perpendicular to the extrusion direction  aligned plane arranged diaphragms through which the object in its Outer circumference adapted openings or openings occurs. The cooling medium is due to the increasing sub in the direction of extrusion in the successive areas pressure is conveyed through these areas and flows essentially transversely or obliquely towards the extrusion direction over a large part of the surface of the article. Despite the thereby improved contact and the higher exchange of the immediate with the object The amount of liquid coolant that comes into contact is sufficient for the cooling achieved of the item not in all execution cases.

Further known, similar devices and methods also describe EP 0 659 536 A2 and EP 0 659 537 A2 as well as DE 19 36 428 A and EP 04 87 778 B1. A disadvantage of All the previously known systems and devices was that mostly 50% of the total Cooling section were needed to remove the relatively small amount of heat from inside the Profile and the webs or areas arranged therein to be removed from this.

The present invention is based on the object of rapid, stress-free cooling len of extruded objects, in particular of hollow profiles.

This object is achieved by the features in the characterizing part of claim 1.

The advantage of the present invention is that objects with different Wall thicknesses and struts, especially hollow profiles with webs, more evenly can be cooled. This is achieved in that the cooling rate in Areas of higher heat concentrations of the object by those in these areas larger amount of heat energy dissipated is approximately as high as in areas less Heat concentration due to the lower amount of heat withdrawal. Due to this ge deprivation of heat in the immediate vicinity of the object to be cooled can ent neither a reduction in the cooling distance or an increase in the throughput speed of the object to be cooled can be reached.

Another embodiment according to claim 2 is also advantageous, because of the selected one Extrusion speed and the corresponding profile geometry the mechanical values of the profile to be cooled can be influenced favorably, whereby the cross section of the Seen profile, for example, better strength values can be achieved.

A training according to claim 3 is also advantageous, since it depends on the selected one Profile contour or the arrangement of the webs in the interior of the profile a directed heat removal  or heat can be dissipated from the profile in a targeted manner.

Due to the design according to claim 4, it is possible to the Kühlme located in the housing dium immediately following the absorption of heat from the object by the to immediately withdraw refrigerant moved through the cooling elements.

According to another embodiment variant, the proximity or direct arrangement of the individual heat extraction devices a targeted heat dissipation achieved from the object, making even those surface sections with less A sufficient amount of heat is also extracted from the thermal energy concentration.

A further development according to claim 6 is also advantageous, since the cooling medium thereby telbar is cooled to even lower temperatures before the directed heat extraction so when using gaseous cooling media, such as air, which a ge rings has heat capacity, also to achieve a good cooling effect.

In the embodiment according to claim 7, it is advantageous that the cooling medium has a the surface sections with higher thermal energy concentration directed outflow tion, whereby the heat removal can be done better and more directed.

The development according to claims 8 and 9 ensures that the cooling medium after the directed heat removal and the flow around the object in ge separated channels from one area to the immediately following area is and can optionally be additionally cooled.

A training according to claim 10 is also advantageous, since due to the simple and easy processing of the insert elements, the shape and arrangement of the individual Ka channels can be done easily and inexpensively and thus with every possible profile cross section optimal and best cooling effect can be achieved.

According to an embodiment according to claim 11, an increase in the exit speed of the cooling medium and, due to this nozzle effect, achieves a precise cooling lung reached.

In this case, an embodiment according to claim 12 proves to be advantageous, since it results in cold losses from the inside of the housing or ingress of heat from outside the housing the interior to the object to be cooled or the cooling medium is prevented from being secured.  

According to an advantageous development according to claim 13 is due to the narrowing the flow cross-section on the one hand the cooling medium faster or with a higher Ge speed moving past the object to be cooled and, on the other hand, closer to it introduced, whereby a higher cooling performance is achieved in these surface sections.

However, training according to claim 14 is also advantageous, because of the difference a high amount of heat when there is a change in the physical state must be supplied or removed and therefore removed from the object to be cooled can be achieved without bringing about a change in the overall system. Further will due to the solid state of the cooling medium, especially with ice, a better one re heat dissipation achieved from the object.

According to claims 15 and 16, those waiters are in the area of the jacket of the object area sections in which an increased thermal energy concentration from the webs or hollow chambers arranged within the object are introduced into the object is, whereby the assignment or assignment of the individual cooling elements of the heat extraction device then be coordinated accordingly.

A training according to claim 17 is also possible, whereby in a simple manner se an increase in the cooling performance of the overall system is achieved because in the same time unit a multiple of the cooling medium is moved past the object to be cooled can.

The embodiment according to claim 18 enables, due to the high latent heat Maximum heat energy to be absorbed or dissipated from the object.

The training according to claim 19 is also advantageous since it damages the pro surface is avoided and a lower throughput of the cooling medium Energy needs are necessary.

However, an education according to claim 20 is also advantageous, since it affects the manufacture complicated cooling panels can be dispensed with, which makes a cheaper off education and more targeted heat dissipation is achieved.

Another embodiment according to claim 21 is also advantageous, since it results in a high level Cooling power or high heat dissipation from the area of the object is achieved.  

A training according to claims 22 and 23 is also advantageous, since this means that Cooling medium, due to the low temperatures of the refrigerant, a large amount of heat is withdrawn and thus the cooling medium has a high absorption capacity for the heat owns the object.

Due to the design according to claim 24, an incidence of the profile during passage This is avoided by the cooling device.

According to another embodiment variant, the viscous plastic is inflated secured object in the entry area of the cooling device avoided.

The invention also includes a method of cooling an elongated, extruded counter stood, as described in the preamble of claim 26.

This method is characterized by the features in the characterizing part of claim 26 net. It is advantageous that, due to the different discharge speeds or the associated thermal energy concentration, the profile or the object seen its cross-section undergoes an approximately uniform cooling. Furthermore occurs conditionally due to the directed heat removal from the object as seen in the cross section in about even heat dissipation, making it in the connection area of webs inside the profile in the area of the jacket for no subsequent heat input from these Be can come rich.

However, a procedure according to claim 27 is also advantageous, since the profile cross section of the Ge seen a buildup of uneven voltages is prevented.

An additional increased heat dissipation is achieved by the procedure according to claim 28.

Finally, by the procedure according to claim 29 one in the longitudinal direction of the object of the seen, more uniform heat dissipation, which additionally warps the Object is safely avoided.

The invention is based on the in the drawings and against possibly also explained in more detail for independent, different design variants.

Show it:

Figure 1 shows an extrusion system with a cooling and possibly calibration device according to the invention, in side view and simplified, schematic representation.

FIG. 2 shows a possible embodiment variant of an optionally independent cooling and optionally calibration device according to the invention, in a front view, in section;

Figure 3 is a schematic sketch of a further cooling and optionally calibration device of a possible, possibly independent, education according to the invention from the same, in a schematic representation, partially cut.

Fig. 4 shows another embodiment of a cooling and calibrating device according to the invention, optionally, in an end view, in cross section;

FIG. 5 shows a partial area of a further embodiment of a cooling and optionally calibration device according to the invention, which is possibly self-contained, in a front view, cut;

Fig. 6 shows another embodiment of an optionally independent cooling and optionally calibration device according to the invention in side view, sectioned, according to lines VI-VI in Fig. 7 and removed object;

Fig. 7 is a partial area of the cooling and calibrating device optionally, in view Stirnan, cut according to the lines VII-VII in Fig. 6;

Fig. 8 is another and optionally independent embodiment of a cooling and optionally Kalbibriereinrichtung in end view, in cross section;

Fig another embodiment an optionally alone by itself, the cooling and calibrating device according to the invention optionally in end view, in section 9; Fig.

. 10 is a further region of the cooling and optionally calibrating device, which corresponds to the area shown in FIG. 9 is arranged immediately downstream of Fig according to the Fig. 9.

In Fig. 1 an extrusion plant 1 is shown, which are supported from an extruder 2, an this is connected to the extrusion tool 3, and a downstream of the latter on the calibrating table 4 or on which other inputs or devices. In the extrusion direction - arrow 5 - the calibration table 4 is a schematically and simplified caterpillar take-off 6 with which an object 7 , for example a profile made of plastic for window construction, based on the extrusion tool 3 by means of shaping or cooling devices described in more detail below can be. The extruder 2 , the calibration table 4 and the caterpillar take-off 6, as well as other systems and devices downstream thereof, such as saws and the like, are supported on and supported on a schematically indicated contact area 8 . Furthermore, it is indicated schematically in the area of the calibration 4 that this is movably mounted on rollers 9 on a rail 10 in the extrusion direction - arrow 5 - is longitudinally displaceable. In order to be able to carry out this adjustment movement more easily and precisely, for example one of the rollers 9 is assigned a traversing drive 11 which enables a targeted and controlled longitudinal movement of the calibration plate 4 to the extruder 2 or from the extruder 2 . Any solutions known from the prior art can be used for driving and controlling this travel drive 11 .

The calibration table 4 is used for receiving or holding further between the extrusion tool 3 and the caterpillar 6 shown devices or devices. Thus, the extrusion tool 3 in the extrusion direction - arrow 5 - is immediately followed by a calibration device 12 , such as a vacuum calibration, and held on the calibration table 4 . In the present exemplary embodiment, this calibration device 12 is formed from three calibration tools 13 to 15 arranged one behind the other, in which the calibration of the extruded object 7 is carried out in a known manner. The arrangement of the vacuum slots, the cooling sections and cooling bores and their connections can take place in accordance with the known prior art. This calibration can include, for example, a combination of dry and wet calibration or only a complete dry calibration. Furthermore, access of ambient air from the extrusion die 3 to the exit from the calibration device 12 can be completely prevented.

Immediately following the calibration tool 15 of the calibration device 12 is a cooling device 16 , which can optionally also be used simultaneously as a calibration device, which in this exemplary embodiment is formed from two cooling chambers 17 and 18 arranged one behind the other, through which the object to be cooled 7 is also passed through and thus represents a continuous route for this. However, it is of course also possible to form the cooling device 16 from a single cooling chamber in order to meet the necessary cooling requirements. This depends on the application and area of use of the cooling device 16 , the object 7 to be cooled and the space available.

In an area facing the calibration tool 15 of the calibration device 12, the cooling chamber 17 has an entry area 19 for the object 7 . Between the two cooling chambers 17 and 18 , a transition area 20 is arranged, which ensures a tight transition from the cooling chamber 17 into the cooling chamber 18 . At the end of the cooling chamber 18 in the direction of extrusion - arrow 5 - there is an outlet area 21 for the article 7 towards the caterpillar take-off 6 . If, for example, only one of the cooling chambers 17 or 18 is arranged, the transition area 20 represents either an exit area or an entry area.

The emerging from the extrusion tool 3 , plasticized and correspondingly shaped Ge object 7 consists of a plastic 22 , which is stored in granular or powder form in a receptacle 23 of the extruder 2 and softened accordingly by means of one or more feed screws 24 in the extruder 2 or plasticized and then discharged from the extrusion die 3 . After leaving the extrusion tool 3, this plastic plastic 22 has a cross-sectional shape predetermined by the extrusion tool 3 , which is correspondingly calibrated and / or cooled in the subsequent calibration device 12 until the viscous-plastic object 7 has cooled superficially until it is External shape stable and the outer shape is designed accordingly in its dimensions. Subsequent to the calibration device 12 , the object 7 passes through the cooling device 16 in order to achieve a further corresponding cooling and optionally calibration and to determine the final cross-sectional shape of the object 7 .

The cooling chamber 17 is divided into several sections or regions 25 to 30 arranged in the extrusion direction - arrow 5 - and the cooling chamber 18 is likewise divided into several sections or regions 31 to 36 arranged one behind the other in the extrusion direction - arrow 5 . The subdivision of the cooling chambers 17 and 18 into different areas is only indicated schematically, the number and / or the size relationships of the sections or areas 25 to 36 being only given as examples.

The two cooling chambers 17 and 18 are each formed by a preferably airtight housing 37 and 38 , with an end wall 39 for the entry area 19, an end wall 40 for the transition area 20 for the cooling chamber 17, and an end wall 41 for the cooling chamber 18, and the exit area 21 for the Cooling chamber 18 is assigned an end wall 42 .

This closed design of the cooling chamber 17 or 18 encloses or borders an interior space 43 or 44 . With a single continuous cooling device 16 , for example, only one of the cooling chambers 17 , 18 forms an interior 45 . The individual sections or areas 25 to 30 or 31 to 36 of the housing 37 and 38 are formed by support panels 46 to 50 or 51 to 55 arranged in the interior space 43 or 44 of the housing 37 to 38 .

These individual support panels 46 to 55 are used to support or guide the object 7 passing through the cooling device 16 , in order to guide it accordingly during its further cooling or its heat removal. For this purpose, both the end walls 39 to 42 and the support panels 46 to 55 each have an opening 56 , which corresponds approximately to a profile contour 57 or an envelope surface of the object 7 to be cooled. The individual openings 56 protrude through the individual end walls 39 to 42 or support panels 46 to 55 and represent the outline shape or outer surface for the object 7 to be cooled, the individual outer dimensions of the individual openings taking into account the shrinkage when the object 7 is cooled while walking through the cooling device 16 in the extrusion direction - arrow 5 - are to be fixed accordingly. This depends on the cross-sectional shape of the object 7 to be produced and is to be selected on the basis of technical calculations or empirical values.

As further indicated schematically in this figure, in each of the housings 37 and 38, the cooling means 16 is a means, such as cooling medium 58 is introduced, which surrounds the passing through the cooling device 16 through the subject 7, and then the subject matter nor in Ge 7 contained Extracts heat from the previous extrusion process. The cooling medium 58 can be in any physical state, such as, for. B. solid and / or liquid and / or gasför shaped, and is freely selectable depending on the desired course of cooling. Depending on the cooling medium used, the corresponding design of the cooling device 16 must then be coordinated.

Is such. B. shown here, a liquid cooling medium 58 , such as. B. water used, this can be introduced, for example, in each of the housings 37 or 38 in a stationary form, that is to say without circulation or conveying device. However, it is also possible, independently of this, to assign means, such as, for example, a separate circulating device 59 or 60 , to each and / or each of the housings 37 or 38 in order to circulate the cooling medium 58 in the individual housings 37 to 38 accordingly to guarantee. Thus, each of the circulating devices 59 and 60 can comprise a collecting tank 61 , a feed pump 62 arranged downstream of this and optionally a cooling device 63 . Furthermore, the inlet region 19 or the region 25 of the cooling chamber 17 is connected to the circulating device 59 via a feed line 64 and the transition region 20 or the region 30 via a discharge line 65 . The same also applies to the area 31 or 36 of the cooling chamber 18 , which are also connected to the circulating device 60 via further supply and discharge lines 64 , 65 . As a result, the cooling medium 58 in each of the cooling chambers 17 and 18 can be set in a flow movement, and in addition heat can be extracted from the cooling devices 63 . However, only one common circulating device 59 or 60 can also be assigned to the cooling chambers.

In each of the two cooling chambers 17 and 18 are schematically indicated means, such as an additional heat extraction device 66 or 67 , for example, in a surface area of the object to be cooled 7 arranged immediately adjacent to this. At least one heat extraction device 66 , 67 is assigned to the object 7 in the cooling device 16 or each of the cooling chambers 17 or 18 . The special arrangement of the individual heat extraction devices 66 , 67 and their design is described in more detail in the following figures. The heat extraction devices 66 , 67 can only be rich between the individual support panels 46 to 55 and / or between the end walls 39 and 40 or 41 and 42 and consistently between the end walls 39 and 42 be arranged. The number of heat extraction devices 66 , 67 is also dependent on the profile of the article 7 to be cooled and is preferably arranged in those surface sections in which inner webs of the profile are connected to the outer jacket thereof and represent areas or surface sections with increased thermal energy concentration which an increased dissipation of heat or the heat energy stored in object 7 must be achieved from the profile.

The arrangement of the individual heat extraction devices 66 , 67 can also, for example, only take place in one of the two cooling chambers 17 and / or 18 , or the arrangement of the same in the individual cooling chambers with respect to the surface sections of the object 7 can be selected differently. Irrespective of this, it is also possible to design one of the cooling chambers 17 and / or 18 of the cooling device 16 according to one of the designs, as described in DE 195 04 981 A1 by the same applicant, and only one of the cooling chambers 17 and / or 18 to be provided with a corresponding heat extraction device 66 , 67 . For the special design of the housing 37 , 38 , consisting of the base plate, the cover plate, the side walls, the end walls, the support panels, the partition walls, the longitudinal web, the arrangement of the throughflow channels and the formation of the individual areas or washing around the object 7 and the associated vacuum build-up within the housing, reference is made to DE 195 04 981 A1, and this disclosure is incorporated into the present application. For the sake of clarity, a schematic representation of the individual system parts or devices was chosen in this illustration for the sake of clarity.

As further indicated here only schematically, the two interiors 43 , 44 of the cooling chambers 17 , 18 are evacuated via means to one another with respect to the ambient air pressure under different vacuum, the prevailing vacuum in the interior 44 being greater than the vacuum in the interior 43 . For this purpose, the two interiors 43 , 44 via lines 68 , 69 and with the interposition of a control device 70 with a suction device 71 , such as. B. a vacuum pump 72 in connection. As a result, it is now possible to preset the two interiors 43 , 44 to a vacuum that is different from one another by means of the regulating devices 70 and to display and thus monitor or read this vacuum set with the regulating devices 70 also via display instruments 73 .

The arrangement of the cooling chambers 17 and 18 of the cooling device 16 shown here has only been chosen for example, whereby it should be mentioned here that it is of course also possible to find sufficiency with only one and / or more cooling chambers and thus the length of the cooling section to be able to better adapt to the object to be cooled or to the respective process conditions. The same also applies to the arrangement and design of the heat extraction devices 66 , 67 .

In FIG. 2, a portion of the housing is the cooling chamber of the cooling device shown in ver 37 17 16 enlarged scale, wherein like reference numerals are applied to like parts as used in FIG. 1. The exemplary embodiment described here shows a simple design of the cooling device 16 , in which the cooling chamber 17 is divided into the individual regions 25 to 30 by the support panels 46 to 50 .

As already described above, the cooling device 16 can be formed from only one or more cooling chambers 17 , 18 , only a partial area of the cooling device 16 being shown and described in this illustration.

The housing 37 is only indicated schematically here and is preferably designed to be gas-tight and consists of a base plate 74 , a cover plate 75 , between these arranged side walls 76 , 77 and in the entry area 19 and transition area 20 arranged end walls 39 and 40 , which thus form or enclose the interior 43 .

The side walls 76 , 77 and the end walls 39 , 40 of the housing 37 form a support surface 78 for the cover plate 75 . A surface 79 of the cover plate 75 facing the interior 43 is supported on this support surface 78 and, owing to the arrangement of the side walls 76 , 77 in relation to the base plate 74, is distanced by a distance 81 from the surface 80 also facing the interior 43 . The two side walls 76 , 77 are due to a width 82 of the base plate 74 transversely to the extrusion direction hen spaced apart, whereby the interior 43 is fixed in its dimensions.

The individual support panels 46 to 50 can be inserted or inserted, for example, in recesses 83 and 84 , respectively, in the side walls and thus held in them. A width of the individual support panels 46 to 50 transversely to the direction of extrusion is preferably greater than the width 82 of the base plate 74 plus the depth of the recesses 83 and 84 . This results in a floating mounting of the individual support panels in the transverse direction to the extrusion direction, whereby an alignment of the openings 56 in the individual support panels with respect to the profile contour 57 of the object 7 is achieved. The support of the individual support panels 46 to 50 in the housing 37 can also be done by any form known from the prior art, such as by gluing, sealing compounds, holding strips, retaining lugs, slots, sealing profiles, grooves or screws, etc.

A vertical alignment of the individual support panels 46 to 50 to each other takes place by the flat support of the individual support panels on the surface 43 facing the interior surface 80 of the base plate 74 . The individual support panels 46 to 50 have a height 85 , measured from the base plate 74 to the cover plate 75 , which is less the distance 81 between the two mutually facing surfaces 79 and 80 . This creates a height difference 86 between the upper edges 87 of the individual support panels 46 to 50 and the support surface 78 or surface 79 .

As further shown here, the article 7 has a bottom plate 74 facing the lower side 88 and a top plate 75 facing the upper side 89 , which define a height 90 in the perpendicular direction to the surfaces 79 , 80 for the article 7 . Furthermore, the underside 88 of the article 7 is spaced from the surface 80 of the base plate 74 by an extent 91 and the upper side 89 of the article 7 by an amount 92 from the upper edge 87 of the support panel 46 . Thus, the height 85 of the individual support panels 46 to 50 is composed of the height 90 of the object 7 and the dimensions 91 and 92 .

A schematically indicated cooling medium level 93 of the cooling medium 58 is provided in this exemplary embodiment in terms of height between the upper edge 87 of the support panels 46 to 50 and the surface 79 of the cover plate 75 facing the interior for cooling the object of FIG. 7 . In order to ensure a slight circulation or an exchange of the cooling medium 58 between the individual areas 25 to 30 within the cooling chamber 17 , it is also possible to arrange openings 94 and 95, for example, in the individual support panels 46 to 50 in these. Furthermore, it is also possible to make the width of the support diaphragms, seen transversely to the extrusion direction, smaller than the width 82 of the base plate 74 and thus also to allow the cooling medium 58 to pass between the individual regions 25 to 30 arranged one behind the other.

The profile of a possible object 7 shown here only as an example has an all-round, self-contained jacket 96 with a wall thickness 97 which, seen over the circumference, is preferably uniform. At this point it should be mentioned that the profile shape of the object 7 shown was chosen only as an example from a variety of possible profile shapes and the cooling processes described in detail below are to be applied analogously to other profile contours 57 .

The object 7 consists of the outer, closed jacket 96 with the all round through fend in approximately uniform wall thickness 97 , which encloses a hollow chamber 98 . This hollow chamber 98 can be divided into further smaller chambers by individual webs 99 to 102 . The webs 99 to 102 have a wall thickness 103 which is less of the wall thickness 97 of the jacket 96 . As a result, node regions 104 to 109 are formed in the connection region of the webs 99 to 102 on the jacket 96 , which represent surface sections 110 to 115 with increased thermal energy concentration due to the increased introduction of thermal energy from the hollow chamber 98 in the direction of the jacket 96 of the object 7 .

Due to the large surface area of the jacket 96 and in cooperation with its wall thickness 97 , the cooling medium 58 surrounding the item 7 already leads to a sufficient amount of heat or thermal energy from the jacket 96 of the item 7 , thereby additionally increasing the critical surface sections 110 to 115 the amount of heat contained in the hollow chamber 98 or the individual webs 99 to 102 can also be extracted.

In the exemplary embodiment shown here, the node areas 105 to 108 and the surface sections 111 to 114 assigned to them are assigned the heat extraction device 66 in the form of individual cooling elements 116 to 119 in order to extract the increased and additional amount of heat from these surface sections 111 to 114 . Due to this profile-related, individual and area-wise arrangement of the individual cooling elements 116 to 119 of the heat extraction device 66 , a certain amount of heat is also removed from the cooling medium 58, as a result of which further individual surface areas arranged between the surface sections 111 to 114 with high thermal energy concentration or heat dissipation 120 to 123 with a lower thermal energy concentration or heat dissipation, a sufficient amount of heat can be extracted. Due to the arrangement of the individual cooling elements 116 to 119 of the heat extraction device 66 , the surface sections 111 to 114 with high heat dissipation alternate with the surface sections 120 to 123 with low heat dissipation, as seen over the cross section of the object 7 , and extend in the longitudinal direction, So in the extrusion direction - arrow 5 - over the entire length of the arrangement of the heat extraction device 66 or 67 .

The individual cooling elements 116 to 119 of the heat extraction device 66 in the cooling chamber 17 can, as is shown in FIG. 1 for the sake of simplicity only for one cooling element 116 , with a circulating device 124 arranged outside the housing 37 , consisting of a collecting container 125 , one Feed pump 126 and possibly a cooling device 127 are connected. Furthermore, it is indicated schematically that the cooling element 116 is in flow connection in the inlet region 19 with a feed line 128 and in the transition region 20 with a discharge line 129 with the circulating device 124 . As a result, a refrigerant 130, schematically indicated in the collecting tank 125, can be stored after flowing through the heat extraction device 66 and then subsequently fed to the heat removal device 66 by means of the feed pump 126 and any cooling by the cooling device 127 , so as to use the individual cooling elements 116 to 119 of the heat extraction device 66 to be able to extract a higher amount of heat from the assigned surface sections 111 to 114 . For example, a liquid refrigerant can be used which has temperatures of less than 15 ° C. or 0 ° C., preferably between -15 ° C. and -30 ° C.

As further indicated schematically in the heat extraction device 67 in the cooling chamber 18 for only one Kühlele element 116 , this or this itself can be formed as an evaporator tube, the refrigerant 130 being supplied to the cooling element 116 in the transition region 20 via a feed line 131 and there is converted from the liquid to the gaseous state by means of an evaporator device, as a result of which the individual cooling elements 116 to 119 are cooled to temperatures of less than 0 ° C., preferably between -15 ° C. and -30 ° C. or -50 ° C., and so on extract additional heat from the cooling medium 58 located in the cooling chamber 18 . When using liquefied gases, such as. As nitrogen, carbonic acid, etc., temperatures between -60 ° C and -170 ° C can be achieved. The additional removal of the higher amounts of heat in the surface sections 111 to 114 takes place in addition to the cooling effect caused by the cooling medium 58 . In the outlet area 21 of the cooling chamber 18 , the cooling element 116 or the cooling elements is connected via a discharge line 132 to a further circulating device 124 , consisting of a compressor 133 , a heat exchanger 134 downstream thereof, and a storage container 135, which is optionally arranged for the refrigerant 130 . Thus, the after the evaporation process in the cooling elements 116 to 119 are gaseous refrigerant 130 in the compressor 133 in the liquid state to be converted, wherein ßend subsequently in heat exchanger 134 or the heat supplied by the compression process of the refrigerant 130 can also be withdrawn. The refrigerant 130 is temporarily stored in the storage container 135 , whereupon the refrigerant 130 , which is in liquid form, is in turn fed to the cooling elements 116 to 119 in the region of the transition region 20 via the feed line 131 .

Due to the low temperatures of the cooling elements 116 to 119 of the heat extraction devices 66 , 67 , the object 7 cooling medium 58 is also cooled to very low temperatures, which, as is indicated schematically for the individual elements 116 to 119 , results in the cooling medium 58 , which is preferably formed by water, in the state of aggregation, ie as a layer of ice, around the individual cooling elements 116 to 119 , and thereby the necessary increased heat dissipation from the critical surface sections 111 to 114 is ensured. The ice built up on the individual cooling elements 116 to 119 assumes an opposite shape corresponding to the profile contour 57 of the object 7 and the surface sections 111 to 114 . As a result, a high heat dissipation is ensured in these surface sections 111 to 114 , to which the cooling elements 116 to 119 are assigned. Furthermore, due to the relative movement of the object 7 in relation to the cooling elements 116 to 119 and the ice layer built thereon, a throughput of the cooling medium 58 in the form of a thin film, which favors the heat transfer from the object 7 in the direction of the heat extraction device 66 or 67 . The throughput of the cooling medium 58 within the housing 37 , 38 can take place both in the extrusion direction - arrow 5 - and in the opposite direction. The same also applies to the refrigerant 130 in the cooling elements 116 to 119 .

Due to these low temperatures of the refrigerant 130 within the cooling elements 116 to 119 and the ice formation in the area of the individual cooling elements, the cooling medium 58 is present in both physical states, as a result of which the still liquid cooling medium 58 also has very low temperatures near the freezing point, and thus also is able to extract large amounts of heat from the surface sections 120 to 123 . For example, if water is used as the cooling medium 58 , this has a high latent heat capacity, which means that when changing from one state of aggregation to the other state of aggregation, such as from solid to liquid, the medium has to be supplied and / or removed with a large amount of heat, only to change the state of aggregation, but this does not lead to a significant change in the temperature of the overall system.

In the embodiments of the cooling device 16 described here in FIGS. 1 and 2, the cooling medium 58 can be offset both in a stationary state and in a movement flowing through the cooling device or the cooling chambers 17 , 18 . This depends on the choice of the respective process sequence for the cooling process selected for the profile and is freely selectable. The individual cooling elements 116 to 119 can be formed by lines, tubes both firmly and flexibly in a wide variety of cross-sectional shapes and can be passed through openings in the end walls 39 to 42 or support panels 46 to 55 .

As materials for the individual cooling elements 116 to 119 , the most varied Ma materials, such as metals in the form of ferrous and / or non-ferrous metals, such as. As stainless steel, copper, etc., plastics, etc. are used, but which are selected such that they have good thermal conductivity, a heat expansion coefficient adapted to the housing and a good resistance to corrosion. The distances or distances between the individual cooling elements 116 to 119 and the individual surface sections 110 to 115 on the object 7 are dependent on the profile cross section of the object 7 , the heat energy concentration to be extracted and the chosen cooling process and can be between 1.0 mm and 50 mm , preferably between 5 mm and 25 mm. However, distances greater than 50 mm are also possible.

The housing 37 and 38 of the cooling device 16 can also be surrounded on the surface facing away from the interior 43 , 44 with insulating elements 136 , so as to shield the cooled inner space 43 , 44 from the outside air surrounding the cooling device 16 and thus from unnecessary heating. The individual insulating elements 136 are assigned to the side walls 76 , 77 and the cover plate 75 . It is to be disposed also possible, for example, between the bottom plate 74 and the calibration table 4 lierelement a correspondingly pressure-resistant Iso to in this area a supply of heat from outside the housing in the direction of the interior as well as a cool radiation starting space from the inner toward the vicinity of the Avoid cooling device. The insulating materials used here can be selected and used in accordance with the known prior art, the selection of the insulating elements 136 being specifically coordinated with the heat removal of the object 7 passing through the cooling device 16 .

As further indicated in the area of the cooling chamber 17 in FIG. 1 in dash-dotted lines, it is possible to assign each of the individual regions 25 to 30 arranged one behind the other a separate heat extraction device 66 , each with its own supply and discharge with the common supply line 128 or derivative 129 are in flow connection with the common circulation device 124 .

In Fig. 3 is a further possible and if necessary independent to execution form of the cooling device shown 16 with the arranged therein heat-removal device 66, wherein like for like parts, reference numeral used 2 as shown in Figs. 1 and. Wei ters with respect to the structure of the housing 37 for the cooling chamber 17 and the detailed flow around the object 7 or the flow through the cooling medium 58 from an area to this immediately following area and the inner half of the cooling chamber vacuum build-up to DE 195 04 981 A1 reference, and this disclosure is incorporated into the present application. In addition, for the sake of simplicity or for the sake of clarity, the representation of the cover plate 75 and the insulating elements 136 has been omitted. The same also applies to the side walls 76 , 77 , which have only been partially shown in terms of their vertical extension. In order to ensure that the vacuum build-up required within the housing 37 between the individual areas 25 to 30 is continuously rising, a separate separating web with an opening arranged therein is provided in the area above the support screen, which separates the individual areas from one another in addition to the support screens 46 to 50 separates. In order to be able to build up the corresponding vacuum in the interior 43 of the housing 37 , a separate inflow opening for the ambient air or for its own closed circuit is arranged in the end wall 39 , for example. The individual regions 25 to 30, which are arranged one behind the other, are also in flow connection with one another via flow openings arranged in the support plates 46 to 50 or the separating webs arranged between the upper edge 87 of the support plates and the cover plate 75 in the region of the cover plate.

The housing 37 of the cooling chamber 17 in turn consists of the base plate 74 , the Seitenwän 76 , 77 , the cover plate 75, not shown here, and the two end walls 39 , 40 arranged in the entry or transition area 19 , 20 and also not shown, which the Define or delimit interior space 43 . The housing 38 of the cooling device 16 can also be designed in accordance with the embodiments described here.

The individual areas 25 to 30 between the end walls 39 and 40 of the cooling device 16 and the cooling chamber 17 of the housing 37 are seen in the extrusion direction - arrow 5 - through support panels 46 to 50 arranged transversely to the extrusion direction, the end walls 39 , 40 and the side walls 76 , 77 , the base plate 74 and the cover plate 75 limited. The individual NEN regions 25 to 30 have between the individual support panels 46 to 50 and the end walls 39 , 40 each have a different length, which is preferably increasingly formed starting from the end wall 39 towards the end wall 40 . This is necessary because the object 7 entering the entry area 19 is not yet stiff or firm enough in its longitudinal extension and must therefore be supported more often. The individual support panels 46 to 50 can in turn be inserted or inserted into recesses 83 , 84 of the side walls 76 , 77 , which in turn causes the previously described floating mounting transverse to the direction of extrusion - arrow 5 - for the individual support panels 46 to 50 results. The individual support panels 46 to 50 have the height 85 , which in this embodiment is less the distance 81 between the interior surface 43 facing surface 80 of the base plate 74 and the support surface 78 formed by the side walls 76 , 77 and the surface formed by the separating webs Top edge is. As a result, each of the individual regions 25 to 30 arranged one behind the other is formed separately from one another. In addition, each of the individual regions 25 to 30 is aligned in both by a plane 137 aligned parallel to the two side walls 76 , 77 , which is arranged approximately in the middle of the width 82 between the two side walls 76 and 77 and is oriented perpendicular to the surface 80 sections 138 and 139 arranged on the level of 137 are subdivided.

In addition, each of the individual regions 25 to 30 , viewed in the longitudinal direction of the housing 37 , is divided into a chamber 141 or rinsing chamber 142 between the surface 80 of the base plate 74 and the underside 88 of the article 7 by a longitudinal web 140 which extends close to the underside 88 , whereby in this embodiment a flow of the cooling medium 58 from the chamber 141 into the rinsing chamber 142 between the surface 80 of the base plate 74 and the underside 88 of the object 7 is predominantly prevented. The water longitudinal web 140 extends in the longitudinal direction of the cooling chamber 17 and can be arranged both continuously and only in regions between the support panels 46 to 50 . Since the cooling medium 58 introduced through the feed line 64 flows into the chamber 141 of the area 25 and rinses the object 7 in the area of its upper side 89 in the direction of the washing chamber 142 , as is indicated schematically by an arrow. The further transport of the cooling medium 58 which has flowed into the region 25 takes place in the section 139 between the side wall 77 and the longitudinal web 140 through a flow channel 143 formed in the base plate 74 from the washing chamber 142 into the chamber 141 of the region 26 . Due to the separation of the area 26 through the longitudinal web 140 into the chamber 141 and the rinsing chamber 142, the cooling medium 58 in turn flushes the upper side 89 of the object 7 starting from the section 139 into the section 138 . A further flow of the cooling medium 58 from the area 26 into the area 27 immediately downstream of it follows through a further flow channel 144 , which is arranged in the section 138 in the base plate 74 . This description of the rinsing process has been selected here only as an example for a large number of possibilities, it being mentioned that this alternating overflow from a section 138 into the section 139 adjacent to it can take place from area to area either in the same and / or opposite manner. This depends on the process steps required for the cooling process.

In order now to extract the amount of heat transported from the webs in the direction of the node areas in targeted areas from the object 7 in the surface sections 110 and 111 , which are shown only in simplified form, the object 7 is the heat extraction device 66 in the form of two cooling elements 116 and 117 assigned, through which the refrigerant 130 is moved and thus cools the two cooling elements 116 , 117 accordingly. This area-specific and targeted arrangement of the cooling elements 116 , 117 in the area of the surface sections 110 , 111 additionally cools the cooling medium 58 flowing around the object 7 or removes heat directly therefrom, as a result of which the surfaces between the surface sections 110 , 111 are arranged heat contained in further surface sections 120 , 121 is also withdrawn and the entire article 7 is thus cooled to a lower end temperature than the starting temperature. At correspondingly low temperatures of the refrigerant 130 , the cooling medium 58 can in turn be present in both unit states, as has already been described in detail in FIGS . 1 and 2. Likewise, the previously described circulating devices 59 and 60 or the circulating device 124 can be arranged as desired or combined with one another as desired.

By this specifically selected arrangement of the heat extraction device 66 the article 7 in those surface portions 110, 111 that an increased amount of heat towards the other surface portions 120, having 121, this selectively removed while entzo gen 58 also much heat the article-flowing around cooling medium that this also cools the other surface sections 120 , 121 . Of course, the selected arrangement of two cooling elements is selected only by way of example, it being mentioned that at least one cooling element 116 to 119 of one of the heat extraction devices 66 , 67 is assigned to the object 7 in its entire longitudinal course through the cooling device 16 . Of course, the arrangement of the individual cooling elements 116 to 119 can also vary only in sections from area to area or these can also be assigned from area to area and / or cooling chamber to cooling chamber different surface sections 110 to 114 .

Furthermore, it can prove to be advantageous, as is possible with such a design of the cooling device 16 , to continuously increase the vacuum prevailing in the interior 43 from area to area. The vacuum in the area 25 can still be very low, for example between 0 bar and -0.1 bar and per area by 0.002 bar to 0.1 bar higher and in the area of the outlet area 21 between -0.1 bar and - 0.5 bar, preferably -0.2 bar. Due to this low vacuum in the inlet area 19 of the cooling chamber 17 , the still viscoplastic object 7 is not exposed to a too high vacuum, as a result of which a change in shape due to the vacuum and thus an inflation of the object 7 cannot occur. Due to the further rapid cooling of the object 7 passing through the cooling device 16 , the vacuum can increase correspondingly from area to area, since with the continuous cooling also a solidification and thus stiffening of the profile occurs.

FIG. 4 shows a further possible and possibly independent embodiment of the cooling device 16 , the same reference numerals as in FIGS. 1 to 3 being used for identical parts. In the exemplary embodiment shown here, a cooling medium 58 is used, which is in a gaseous physical state while flowing through the cooling chamber 17 or 18 .

In the present exemplary embodiment, the housing 37 of the cooling chamber 17 again consists of the base plate 74 , the cover plate 75 , the side walls 76 , 77 and the end walls 39 , 40 which enclose or delimit the interior 43 . In addition, the interior 43 is based on the end wall 39 in the extrusion direction - arrow 5 - towards the end wall 40 through the support panels 46 to 50 divided into the successive areas 25 to 30 . Of course, the embodiments described here also apply to the cooling chamber 18 of the cooling device 16 , but it is also possible to design the cooling device 16 as a continuous cooling chamber. The subdivision into the individual cooling chambers 17 , 18 is selected only in a playful manner and can be freely selected depending on the application or cooling requirement.

The interior 43 of the cooling chamber 17 is divided again by the aligned parallel to the side walls 76, 77 level, 137 in the sections 138 and 139, the plane 137 at an angle, preferably at right angles, to the two surfaces 79, 80 of the cover plate 75 and Base plate 74 is aligned. In this plane 137 , the longitudinal web 140 is again arranged, which divides the area 25 into the chamber 141 and the rinsing chamber 142 , where the object 7 , starting from its upper side 89 , then the through the cooling medium 58 flowing in through the supply line 64 Flows around side walls in section 138 towards its underside 88 and in turn flows around the side walls in section 139 . In this exemplary embodiment, the longitudinal web 140 extends from the surface 79 of the cover plate 75 in the direction of the upper side 89 of the object 7 . The two mutually facing upper surfaces 79 , 80 of the cover plate 75 and base plate 74 are arranged at a distance 81 from each other, starting from the height 85 of the support panels 46 to 50 , which is less the distance 81 , between the upper edge 87 of the individual support panels and the surface 79 of the cover plate 75 forms the height difference 86 . Due to this height difference 86 bil det between the longitudinal web 140 , the side wall 77 , the cover plate 75 and the upper edge 87 of the. Support panel 46 a flow channel 143 for the cooling medium 58 from the rinsing chamber 142 of the area 25 in the chamber 141 of the area 26 from. In order to prevent a flow of the cooling medium 58 in the chamber 141 of the section 138 in the region 25 in the direction of the region 26 immediately following this, a partition is between the side wall 76 , the longitudinal web 140 , the cover plate 75 and the upper edge 87 of the support panel 46 145 arranged, which separates the area 25 in section 138 from section 138 of the loading area 26 . It is also possible, however, to design the individual support plates 46 to 50 with an extension and / or a recess instead of the dividing wall 145 , in order to achieve a separation of the individual areas 25 to 30 in the same way. The area 26 is also in flow connection with the area 27 immediately following this through a further flow channel 144 in the section 138 .

In order to be able to optimally cool the surface of the object 7 by means of the gaseous cooling medium 58 , an insert element 146 , 147 is arranged in both sections 138 and 139, respectively, which are designed such that there is between the surface of the object 7 and the surfaces facing it the insert elements 146 , 147 forms a flow channel 148 with a flow cross-section or a flow width 149 . This flow-through width 149 is preferably formed by a uniform distance between 1.0 mm and 20.0 mm, preferably between 5.0 mm and 10.0 mm, as a result of which a uniform flow through or washing around the object 7 in the area of its surface the cooling medium 58 is achieved. This cooling achieved by the cooling medium 58 of the jacket 96 of the item 7 is sufficient to dissipate the amount of heat or heat energy contained therein by the cooling medium 58 . Furthermore, it is shown in the profile of the object 7 selected here that from the two node regions 104 , 105 , which form the main connection points of the webs arranged in the hollow chamber 98 , an increased amount of heat is introduced into the jacket 96 , which in turn results in surface sections 110 , 111 train with increased heat quantity or heat energy concentration. In this exemplary embodiment, only these two surface sections 110 , 111 were chosen by way of example and for the sake of better clarity for the further detailed description, although it is of course possible for each other node area or further surface sections with increased heat accumulation or quantity to have the corresponding heat extraction device 66 in the form of cooling elements 116 , 117 .

The in section 138 assigned to the surface section 110 cooling element 116 of the heat extraction device 66 is arranged such that the cooling medium 58 passing through the flow channel 148 is cooled to a lower temperature before it hits the surface section 110 and the surface section 110 can thus withdraw a larger amount of heat . Furthermore, it is indicated schematically in the direct connection to the cooling element 116 that the throughflow width 149 or the throughflow cross section of the flow channel 148 is reduced by a schematically indicated orifice 150 to a cross section 151 which is smaller than the throughflow width 149 . Due to this reduction in the flow width 149 to the cross section 151 and the upstream cooling element 116 , the cooling medium 58 is cooled more strongly before reaching the surface section 110, and due to this constriction, the cooling medium 58 passing through increases in speed, which makes it possible for the dissipate additional higher amount of heat from this node area 104 from the object 7 . Furthermore, the arrangement of the diaphragm 150 leads to an additional closer approach of the cooling medium 58 to the surface of the object 7 , as a result of which this effect is further increased, since a higher proportion of cooling medium 58 is moved past this surface section 110 in the same time unit.

The further arrangement of the cooling element 117 and the aperture 150 assigned to it in the section 139 for the surface section 111 takes place in accordance with the embodiment, as has already been described in detail for the surface section 110 . Thus, in the exemplary embodiments shown and described here, the cooling medium 58 is correspondingly cooled each time the object 7 flows around in each of the individual regions 25 to 30 during the passage through the flow channel 148 , as a result of which the upper surface sections 120 , 121 with lower or lower heat dissipation can also be adequately cooled. The flow or flow around the object 7 through the cooling medium 58 takes place in the immediately successive areas 25 to 30 , before pulls each opposite to prevent unilateral cooling and thus warping of the object 7 . However, a direction of flow in the same direction is also possible.

In the case of further node areas 106 , 107 arranged within the object 7 , it is shown in a simplified manner that the flow cross section or the flow width 149 of the flow channel 148 can also be narrowed in these areas also by further orifices 150 . An assignment or pre-arrangement of further cooling elements of the heat extraction device is not provided in these areas, since the removal or removal of the increased amount of heat or thermal energy, due to the narrowing of the flow cross-section or the flow width 149 and the speed increase associated therewith of the cooling medium 58 is sufficient in these surface sections. Of course, cooling elements can also be assigned to these areas in order to achieve a higher heat dissipation.

The cooling elements 116 , 117 shown here are in turn flowed through by the refrigerant 130 , which can be selected in accordance with the embodiments described above, and are either in a liquid and / or gaseous state of matter. It is advantageous if the refrigerant 130 has a temperature of below 0 ° C., preferably between -15 ° C. and -30 ° C. or -50 ° C. Temperatures down to -170 ° C are also possible. Furthermore, it should be mentioned that the arrangement of the longitudinal web 140 between the Deckplat 75 and the top 89 of the object 7 is only one of many possibilities and it is of course also possible, for example, between the base plate 74 and the object 7 and / or between the Side walls 76 , 77 and the item 7 to arrange. Multiple arrangement of the longitudinal web 140 is also possible. Furthermore, the insert elements 146 , 147 can also be designed at the same time as insulating elements, but it is also possible, independently of this, to additionally provide the housing 37 on the outside thereof with the previously described insulating elements 136 . An additional arrangement of further cooling elements, such as finned tubes, is described in one of the following figures.

In FIG. 5, a similar configuration of the housing 37 of the cooling chamber 17 for the Küh leinrichtung 16, as shown in FIG. 4, wherein like reference numerals apply for the same parts are ver. This training described here can of course be an independent solution according to the invention for the heat extraction device 66 .

The housing 37 in turn consists of the base plate 74 , the cover plate 75 , the Seitenwän the 76 , 77 and the end walls 39 , 40 , which limit the interior 43 or close. The support panels 46 to 50 divide the interior 43 seen in the longitudinal direction of the Ge object 7 into the individual regions 25 to 30 arranged one behind the other. The plane 137 is aligned parallel to the side walls 76 , 77 and perpendicular to the base plate 74 or cover plate 75 , in which the longitudinal web 140 is also arranged. In section 138 between the side wall 76 and the plane 137, the insert element 146 is shown, which forms the flow channel 148 for the cooling medium 58 between the surface of the object 7 and the surfaces of the insert element 146 facing it. From the formation of the flow width 149 of the flow channel 148 can be carried out according to the previously described embodiments.

Furthermore, it is shown in this exemplary embodiment that the cooling element 116 of the heat extraction device 66 is assigned to the node area 104 of the object 7 in order in turn to dissipate an increased amount of heat from the surface section 110 . In order to achieve good cooling performance of the cooling element 116 for the cooling medium 58 flowing through, the cooling element 116 has additional ribs 152 arranged one behind the other in the longitudinal direction, which serve to enlarge the surface area of the cooling surface for the cooling element 116 and thus can cool the cooling medium 58 flowing through even better . The Kühlele element 116 is designed in the manner of a finned tube, which is flowed through by the refrigerant 130 , which can be used both in the gaseous and / or liquid state. By arranging the cooling element 116 in the area of the surface section 110 , the flow width 149 of the flow channel 148 can be reduced or the cooling medium 58 flowing through can be deflected accordingly in order to in turn supply a large mass flow of the cooling medium 58 directly to the surface section 110 in order to provide the node area 104 to cool well and to withdraw an increased amount of heat from it.

In a further surface section 111 , in which extensions 153 , 154 protrude beyond the surface of the object 7 in the area of the jacket 96 and serve, for example, to accommodate a sealing element etc., it is further shown that the heat extraction device 66 is formed by the cooling elements 117 , 118 , Which are also provided with a plurality of ribs 152 arranged one behind the other for increasing the surface area and for more intensive cooling of the two extensions 153 , 154 , and in the regions facing the profile or the extensions 153 , 154 a contour is formed which is the same as these extensions and is thus close to the surface of the extensions 153 , 154 or the surface of the object 7 reach. As a result, a good cooling effect can also be achieved in such areas or surface sections, which can be additionally reinforced with a corresponding shape or arrangement of the individual cooling elements 117 , 118 in relation to the ribs 152 . The arrangement of the two cooling elements 117 , 118 is only shown as an example, where it is of course also possible to assign only one cooling element and / or several cooling elements to these ribs 152 . The further presentation of section 139 has been dispensed with, since the arrangement of the individual cooling elements 116 to 118 can be carried out in accordance with the embodiment as described for section 138 . The arrangement of the individual cooling elements of the heat extraction device 66 is, however, dependent on the profile and cross section and can be freely selected in accordance with these circumstances. In addition, the schematically indicated insulating elements 136 may be arranged on the outside of the housing 37 .

In Figs. 6 and 7 is a further possible and if necessary independent from management form the cooling device 16 with the arranged therein heat extraction device 66 and 67 shown, wherein the same for the same parts reference numerals as det in FIGS. 1 to 5 USAGE . In the embodiment shown here, a gaseous cooling medium 58 is used to remove the object 7 in the node areas 105 to 108 from the hollow chamber 98 and the webs arranged therein into the node areas in a targeted and controlled manner from the jacket 96 .

The housing 37 of the cooling chamber 17 consists in the present embodiment from the Bo denplatte 74 , the cover plate 75 , the side walls 76 , 77 and the end walls 39 , 40 which enclose or delimit the interior 43 . In addition, the interior 43 is divided from the end wall 39 in the extrusion direction - arrow 5 - towards the end wall 40 by the support panels 46 to 50 in the successive areas 25 to 30 . Of course, the embodiments described here also apply to the cooling chamber 18 of the cooling device 16 , as has already been described above. The interior 43 of the cooling chamber 17 is partitioned by the parallel to the side walls 76, 77 oriented plane 137 in the sections 138 and 139, the plane 137 at an angle, preferably perpendicular, to the both surfaces 79, 80 of the top plate 75 and bottom plate 74 is aligned. In this exemplary embodiment, in this plane 137 , between the surface 80 of the base plate 74 and the underside 88 of the article 7 and between the surface 79 of the cover plate 75 and the upper side 89 of the article 7, the longitudinal web 140 and 155 is arranged, which is the cooling chamber 17 divided in its longitudinal direction or longitudinal extent into the section 138 arranged between the side wall 76 and the plane 137 or the section 139 arranged between the side wall 77 and the plane 137 . In these two sections 138 , 139 , an insert element 146 , 147 is arranged, which are designed such that between the surface of the object 7 and the facing surfaces of the insert elements of the flow channel 148 with a preferably uniform flow width 149 between 1, 0 mm and 20 mm, preferably between 5 mm and 10 mm. Due to the subdivision of the cooling chamber 17 shown here into the two sections 138 and 139 by the two longitudinal webs 140 , 155 and the article 7 , only the heat extraction device 66 is described in section 138 in more detail. Since it is in the formation of the further heat extraction device 67 in section 139 an approximately mirror-image formation with the cooling elements 118 , 119 . The heat extraction device 66 shown in section 138 consists of the two cooling elements 116 , 117 , through which the refrigerant 130 flows and are thus cooled. Furthermore, the individual cooling elements 116 , 117 can be connected to a circulating device for the refrigerant 130 described in FIG. 1, for example via the supply line 128 and the discharge line 129 .

The two cooling elements 116 , 117 of the heat extraction device 66 are arranged within the insert element 146 and are preferably formed continuously through the cooling device 16 . In the insert element 146 in the area of the two cooling elements 116 , 117 cooling channels 156 , 157 , preferably concentrically, are arranged to the two cooling elements. An outflow channel 158 , 159 , which is preferably tapered in cross-section in the direction of the node regions 105 , 107 or the surface sections 111 and 113 , is arranged on each of these two cooling channels 156 , 157 . The two cooling channels 156 , 157 and the two outflow channels 158 , 159 are preferably aligned parallel to the two cooling elements 116 , 117 and preferably extend continuously over a length 160 of the insert element 146 . Furthermore, it is indicated schematically that the individual channels in the area adjacent to the support panel 46 are closed by a closure element 161 in order to prevent the cooling medium 58 flowing through these channels from flowing out and thus a directional outflow direction from the two outflow channels 158 , 159 in the direction of the To reach surface areas 111 , 113 in a targeted manner. The length 160 of the insert element 146 may be less by a dimension 162 than a distance 162 'between the end wall 39 and the support panel 46 . Due to this difference in length between the distance 162 'and the length 160 , a channel 163 is formed between the insert element 146 and the support panel 46 in the area 25 between them, in which the cooling medium 58 flowing out of the outflow channels 158 , 159 according to the directional, Increased heat removal from the surface sections 111 , 113 of the node areas 105 , 107 and the subsequent flow around the surface sections 120 to 122 also removes a sufficient amount of heat, and thus also cools the entire jacket 96 of the article 7 , flows in. This cooling of the surface portions 120 to 122 is by the combined arrangement of the Umströmungska Nals 148 along the surface of the cooling device 16 by passing through the object 7 is possible in cooperation with the channel 163rd

In the area of the end wall 39 , the supply line 64 for the cooling medium 58 is schematically indicated, which leads into a feed channel 164 arranged in the insert element 146 , which in this exemplary embodiment is oriented perpendicular to the two surfaces 79 and 80 and is arranged in the area of the end wall 39 . Furthermore, the two cooling channels 156 , 157 arranged in the area of the cooling elements 116 , 117 are in flow communication with the supply channel 164 via connecting channels 165 , 166 . The arrangement of the individual channels shown here has been selected and described as an example for a large number of possibilities, the illustration or arrangement of individual closure elements for the individual channels being dispensed with for the sake of clarity. It is essential here that the cooling medium 58 supplied through the feed line 64 before exiting the outflow channels 158 , 159 through the cooling elements 116 , 117 arranged in the cooling channels 156 , 157 to a very low temperature of less than 0 ° C., preferably between - 15 ° C and -30 ° C or -50 ° C, optionally down to -170 ° C, is cooled so as to ensure the increased heat dissipation or the increased heat removal in the upper surface sections 111 , 113 . After the removal of the certain amount of heat from the surface sections 111 , 113 , the cooling medium 58 still has sufficient absorption capacity for heat in order to also remove a certain proportion of heat from the other surface sections 120 to 122 in the region of the outer surface of the object 7 to bring the entire profile to a lower end temperature than the starting temperature during the passage through the cooling device 16 .

In the versions described in FIGS . 4 to 7, 28772 00070 552 001000280000000200012000285912866100040 0002019709895 00004 28653hrungsformen and the gaseous cooling medium 58 used , it is possible due to the low temperatures of the cooling elements 116 to 119 that they still contain the cooling medium 58 Moisture is deposited or builds up in the form of hoarfrost and the object 7 is thus flowed around or washed around by a relatively dry cooling medium 58 .

Of course, it is also possible to arrange both the feed channel 164 and / or the connecting channels 165 , 166 several times in the insert element 146 in order to achieve a more uniform distribution of the supplied cooling medium 58 for the outlet from the outflow channels 158 , 159 . However, it is also possible, irrespective of this, to arrange the channel 163 between the insert element 146 and the support panel 46 only in regions, or to mold it into the insert element 146 or to arrange it therein. It is only important that the cooling medium 58 flowing out of the outflow channels 158 , 159 after the further heat removal in the area of the flow channel 148 before passing in section 138 of the area 25 is collected and through a flow channel 167 arranged in the support panel 46 in the section 138 of area 26 is directed. However, it is also possible, instead of the outflow channels 158 , 159, to arrange individual nozzle openings, starting from the cooling channels 156 , 157 in the direction of the outflow channel 148 , toward the node regions 105 to 108 to be cooled in the insert element 146 , 147 , as is shown by dashed lines is indicated in Fig. 6. The flow channel 167 can be arranged, for example, in a manner similar to how the feed line 64 and in another feed channel 164 in the insert element 146 open in the region 26 . The distribution or supply of the cooling medium 58 from the supply channel 164 can take place in the region 26 analogously to the embodiment as has been described for the region 25 .

In order to achieve a throughput of the cooling medium 58 , starting from the supply line 64 through the cooling device 16 to the discharge line 65 , it is advantageous to steadily increase the vacuum in the interior 43 from area to area. The vacuum in the loading area 25 can still be very low, for example between 0 bar and -0.1 bar and higher by 0.002 bar to 0.1 bar per area and in the area of the outlet area 21 between -0.1 bar and - 0.5 bar, preferably -0.2 bar. The vacuum created in the interior 43 causes the cooling medium 58 to move continuously from the inlet area 19 to the outlet area 21 of the cooling device 16 .

Furthermore, it is also possible, independently of this, to arrange an additional extraction channel 168 between the two surface sections 111 , 113 in the insert element 146 , which is in flow connection with the additional feed channel 164 in the area 26 by means of a transition piece 169 in the area of the support panel 46 and in dash-dotted lines is shown. This makes it possible to achieve an increased flow rate of the cooling medium 58 through the inner space 43 of the cooling device 16 and thus to cool the object 7 more quickly. The transition piece 169 shown in simplified form can be formed by any parts known from the prior art and, for example, be tubular, tubular and both flexible and rigid. Furthermore, it is advantageous if the insert elements 146 , 147 and / or the insulating elements 136 have a low thermal conductivity so as to serve as insulation of the object 7 from the atmosphere. A wide variety of materials, such as. B. foams made of plastic, polystyrene, etc., which also allow easy processing at the same time.

In Fig. 8 a further possible and possibly independent execution form of the cooling device 16 is shown, the same reference numerals as in Fig. 4 are used for the same parts, since in the embodiment shown here for additional cooling by the cooling chamber 17 flowing through cooling medium 58 between the upper edge 87 of the individual support panels 46 to 50 and the cover plate 75, an additional cooling system 170 is arranged.

The housing 37 of the cooling chamber 17 in turn consists of the base plate 74 , the cover plate 75 , the side walls 76 , 77 and the end walls 39 , 40 , which enclose or delimit the interior 43 , which starts from the end wall 39 in the direction of extrusion - arrow 5 - towards the end wall 40 is divided by the support panels 46 to 50 in the immediately successive areas 25 to 30 . The interior 43 is in turn divided by the parallel to the side walls 76 , 77 aligned plane 137 into sections 138 and 139 , in which the longitudinal web 140 , starting from the surface 79 of the cover plate 75 , in the direction of the object 7 to close is arranged on the top 89 extending. This plane 137 divided in interaction with the longitudinal web 140 each of the different areas in the chamber 141 and the purge chamber 142, whereby the air flowing in through the supply line 64 cooling medium 58 to the object 7, starting from its upper side 89, because then the side walls in the section 138, flows to its underside 88 and again the side walls in section 139 . For the formation of the flow channel 148 and its flow width 149 or flow cross section and the narrowing to the cross section 151 as well as the cooling elements 116 , 117 arranged in the node areas 104 to 107 and the orifices 150 and the constriction of the flow cross section associated therewith, unnecessary repetitions become necessary Avoid referring to the detailed description in FIG. 4.

The two mutually facing surfaces 79 , 80 of the top plate 75 and bottom plate 74 are arranged at a distance 81 from each other, starting from the height 85 of the support panels 46 to 50 , which is less the distance 81 , between the upper edge 87 of an individual Support panels and the surface 79 of the cover plate 75 forms the height difference 86 . In the exemplary embodiment shown here, the height difference 86 is increased by the height 171 compared to that in FIG. 4, since this serves to accommodate the cooling system 170 .

This cooling system 170 is formed from a tube 172 and thereon at a minimal distance one behind the other arranged ribs 173 , which serve to enlarge the effective cooling surface for the cooling medium 58 passing through it. Within the tubes 172 , the refrigerant 130 is used to remove heat from the cooling medium 58 , which flows with each overflow from a section 138 into the further section 139 or with each overflow from an area into the area immediately following this between the individual ribs 173 of the cooling system 170 is forced through. The cooling system 170 is arranged in this embodiment within the housing 37 directly on the upper edge 87 of the individual NEN support panels 46 to 50 , whereby in the area between the ribs 173 and the surface 79 of the cover plate 75 between the rinsing chamber 142 of the area 25 and of the chamber 141 of the region 26 forms the throughflow channel 143 , through which the cooling medium 58 flows each time it passes from one region to the region immediately following it. The rinsing chamber 142 of the area 26 in the section 138 is in flow connection with the area 27 immediately following it through the flow channel 144 .

In order to achieve an alternating and possibly opposite flow over or flow around the object 7 in each of the areas 25 to 30 , in the area of each of the individual support panels 46 to 50 there is preferably an alternation in each of the sections 138 , 139 between the ribs 173 and the surface 79 the cover plate 75 and between the longitudinal web 140 and the side wall 76 and 77 , a partition wall 145 is arranged, which separates the chamber 141 of the first area from the rinsing chamber 142 of the area immediately following in the same section 138 , 139 .

The supply or the throughput of the refrigerant 130 through the tubes 172 of the additional cooling system 170 can take place in accordance with one of the embodiments described in more detail in FIG. 1, but also, for example, a combination with the refrigerant 130 in the cooling elements 116 , 117 of the heat extraction device 66 , 67 is possible. A separate as well as a common throughput of the refrigerant 130 through the heat extraction device 66 , 67 or the cooling system 170 is possible.

In FIGS. 9 and 10 is a further possible and if necessary independent from the cooling device 16 for the cooling chamber 17, guide die with this forming Gehäu se 37, wherein the same for the same parts reference numerals as used in FIGS. 1 to 8 . The basic structure of the housing 37 , consisting of the side walls 76 , 77 , the base and cover plate 74 , 75 and the end walls 39 , 40 and the support panels 46 to 50 arranged in the interior 43 can be according to the in FIGS . 1, 6 and 7 described form of implementation. In the embodiment shown here, a gaseous cooling medium 58 is also used to selectively remove an increased amount of heat from the object 7 in the individual node areas 104 to 109 , which represent the surface sections with increased thermal energy concentration or higher amount of heat.

The plane 137 is aligned parallel to the two side walls 76 , 77 and is arranged approximately centrally between them. Another normal or right-angled transverse plane 174 is oriented approximately centrally to the height 90 of the object 7 and divides the flow channel 148 arranged in the insert element 146 into the section 138 between the transverse plane 174 and the cover plate 75 and in section 139 between the transverse plane 174 and the base plate 74 .

Each of the individual sections 138 , 139 is assigned its own heat extraction device 66 , 67 , which are arranged in channels 175 to 178 , which are located within the insert elements 146 throughout the cooling chamber 17 , that is to say also through the individual support panels 46 to 50 , in Extend the extrusion direction continuously. The design and arrangement of the individual channels 175 to 178 has only been shown as an example, and it can of course have any spatial shape and longitudinal extension.

The flow channel 148 is formed in the area of the transverse plane 174 or the heat extraction lines 66 , 67 with a smaller flow width 179 in the form of an intermediate channel 180 with a smaller flow cross section. Due to this cross-sectional constriction over the entire longitudinal extent in the individual regions 25 to 30 arranged one behind the other, the cooling medium 58 is subjected to an increased flow resistance, as a result of which a lower throughput of the cooling medium 58 takes place in the region of the intermediate channels 180 .

The heat extraction devices 66 , 67 are formed by individual cooling elements 116 to 119 and ribs 173 arranged thereon and spaced apart from one another, the individual ribs 173 serving to enlarge the cooling surface or heat transfer surface. The individual cooling elements 116 to 119 are in turn flowed through by the refrigerant 130 , which according to the previously described embodiments can be both gaseous and / or liquid and / or a mixture thereof.

In the area 25 shown in FIG. 9, the cooling medium 58 is supplied via the supply line 64 to the channel 175 in the section 138 on the one hand and to the channel 178 in the section 139 via a further supply line 64 . The supply of the cooling medium 58 or the arrangement of the channels 175 , 178 takes place approximately diagonally to the plane 137 or transverse plane 174 , which results in a staggered arrangement. The cooling medium 58 introduced into the channel 175 in the section 138 flows past or through the cooling element 116 and the ribs 173 arranged thereon and passes through a connection channel 181 directed towards the node area 105 into the flow channel 148 and flows around the object 7 in the area of its upper side 89 towards the further cooling element 117 of the heat extraction device 66 arranged in the region of the side wall. Entry into the channel 176 from the flow channel 148 takes place through a further connecting channel 182 with the interposition of the cooling element 117 .

In section 139 , the cooling medium 58 , proceeding from the channel 178 , passes through the cooling element 119 into a further connecting channel 183 , which likewise causes a directed outflow onto the node area 108 of the article 7 , into the flow channel 148 of the section 139 and flows around the article 7 in the region of its underside 88 in the direction of the cooling element 118 of the heat extraction device 67 . The entry into the channel 177 , starting from the flow channel 148 , takes place through a further connecting channel 184 . The individual connecting channels 181 to 184 between the channels 175 and 178 and the flow channel 148 are designed as outflow or inflow channels, depending on the flow direction of the cooling medium 58 . Due to the smaller flow width 179 of the intermediate channels 180 , a low throughput of cooling medium 58 also occurs in these channels, as a result of which these surface sections are also cooled accordingly or heat is removed from them, as is indicated schematically by small arrows.

A forwarding of the cooling medium 58 from the section 138 in the area of the channel 176 or from the channel 177 in the section 139 of the area 25 into the area 26 immediately following this takes place through openings 185 and 186 in the support panel 46 . But it is also possible to continuously train the individual channels 175 to 178 both in the insert element 146 and the individual support panels 46 to 50 and to alternately close them in order to ensure the flow around the object 7 transversely to its extrusion direction.

In FIG. 10, the area 26 of the cooling device 16 immediately downstream of the area 25 is shown, in which an opposite flow around the object 7 by the cooling medium 58 in relation to the upstream area 25 is shown. The cooling medium 58 flows through the channel 176 or the opening 185 in the support panel 46 into the channel 176 arranged in the region 26 , flows through the cooling element 117 and the ribs 173 arranged thereon and passes through the connecting channel 182 into the flow channel 148 and enters in the area of the cooling element 116 through the connecting channel 181 into the channel 175 arranged in the insert element 146 . The opposite flow around the object 7 , starting from the channel 177 , in the direction of the channel 178 is analogous to this. As a result, an oppositely directed flow around the object 7 through the cooling medium 58 is achieved in each of the individual immediately adjacent regions 25 , 30 .

It is advantageous that the cooling medium 58 after each entry through one of the connecting channels 181 to 184 before entering the respective channel 175 to 178 must flow through one of the cooling elements 116 to 119 with the ribs 173 arranged thereon and after being passed on to the immediately adjacent area must also pass through one of the cooling elements 116 to 119 . As a result, a double passage through each of the individual cooling elements 116 to 119 occurs with each forwarding from an area to the area immediately adjacent to it, as a result of which a high amount of heat can be extracted from the cooling medium 58 and thus with the respective directed outflow from the connecting channels 181 to 184 a high amount of heat can be withdrawn from the individual node areas 105 to 108 . Removal of the cooling medium 58 from the interior 43 or 44 of the cooling device 16 can be carried out together via a discharge line 65 ( not shown in more detail), as a result of which the vacuum build-up taking place inside the housing 37 , 38 can also increase steadily, starting from the entry area towards the exit area .

However, it is also possible to form the individual connecting channels 181 to 184 , if these are used for the flow of the cooling medium 58 , as individual nozzle openings arranged one behind the other and directed towards the node areas 105 to 108 to be cooled.

Of course, the individual exemplary embodiments described above and the variants and different designs shown in these exemplary embodiments can each form independent solutions according to the invention and can be combined with one another as desired. Furthermore, detailed descriptions of individual elements, construction, etc., as well as various cooling processes, the vacuum build-up, the pressure or order flow of the object 7 from the cooling medium 58 can be adopted in embodiments in which the description has been omitted due to unnecessary repetitions .

Finally, for the sake of order, it should be pointed out that for a better understanding of the Function of the cooling device according to the invention many parts of the same schematically and un have been shown proportionally enlarged.

Above all, the individual in FIGS. 1; 2; 3; 4; 5; 6, 7; 8th; 9, 10 shown form the subject of independent, inventive solutions. The relevant tasks and solutions according to the invention can be found in the detailed descriptions of these figures.

Reference list

1 extrusion line
2 extruders
3 extrusion tool
4 calibration table
5 arrow
6 caterpillar take-off
7 subject
8 footprint
9 roller
10 track
11 traversing drive
12 calibration device
13 calibration tool
14 calibration tool
15 calibration tool
16 cooling device
17 cooling chamber
18 cooling chamber
19 entrance area
20 transition area
21 exit area
22 plastic
23 receptacles
24 screw conveyor
25 area
26 area
27 area
28 area
29 area
30 area
31 area
32 area
33 area
34 area
35 area
36 area
37 housing
38 housing
39 end wall
40 end wall
41 end wall
42 end wall
43 interior
44 interior
45 interior
46 support panel
47 support panel
48 support panel
49 support panel
50 support panel
51 support panel
52 support panel
53 support panel
54 support panel
55 support panel
56 breakthrough
57 Profile contour
58 cooling medium
59 Circulation device
60 circulating device
61 collection containers
62 Feed pump
63 cooling device
64 supply line
65 derivative
66 heat extraction device
67 heat extraction device
68 line
69 management
70 control device
71 suction device
72 vacuum pump
73 display instrument
74 base plate
75 cover plate
76 side wall
77 side wall
78 contact surface
79 surface
80 surface
81 distance
82 width
83 recess
84 recess
85 height
86 height difference
87 top edge
88 bottom
89 top
90 height
91 extent
92 extent
93 Coolant level
94 breakthrough
95 breakthrough
96 coat
97 wall thickness
98 hollow chamber
99 footbridge
100 bridge
101 footbridge
102 footbridge
103 wall thickness
104 node area
105 node area
106 node area
107 node area
108 node area
109 node area
110 surface section
111 surface section
112 surface section
113 surface section
114 surface section
115 surface section
116 cooling element
117 cooling element
118 cooling element
119 cooling element
120 surface section
121 surface section
122 surface section
123 surface section
124 Circulation device
125 collection containers
126 feed pump
127 cooling device
128 supply line
129 derivative
130 refrigerants
131 supply line
132 derivative
133 compressors
134 heat exchangers
135 storage containers
136 insulating element
137 level
138 section
139 section
140 longitudinal web
141 chamber
142 rinsing chamber
143 flow channel
144 flow channel
145 partition
146 insert element
147 insert element
148 flow channel
149 flow width
150 aperture
151 cross section
152 rib
153 continuation
154 continuation
155 longitudinal web
156 cooling channel
157 cooling channel
158 outflow channel
158 outflow channel
160 length
161 closure element
162 extent
162 ′ distance
163 channel
164 feed channel
165 connecting channel
166 connecting channel
167 flow channel
168 culvert
169 transition piece
170 cooling system
171 height
172 pipe
173 rib
174 transverse plane
175 channel
176 channel
177 channel
178 channel
179 flow width
180 intermediate channel
181 connecting channel
182 connecting channel
183 connecting channel
184 connecting channel
185 opening
186 opening.

Claims (29)

1. Cooling device for cooling an elongated, continuously extruded Ge object with at least one cooling chamber through which the object is passed, and with means to lower an area surrounding the object at least in the cooling chamber to a pressure below the ambient air pressure and with Means for dissipating the thermal energy stored in the object from the object via at least one cooling medium, characterized in that the means or these means form de heat extraction devices ( 66 , 67 ) for extracting a larger amount of heat from the surface sections ( 110 to 115 ) of the object ( 7 ) with higher thermal energy concentration than directly adjacent surface sections ( 120 to 123 ) are formed. 2. Cooling device according to claim 1, characterized in that the means or the heat extraction device ( 66 , 67 ) for withdrawing a larger amount of heat over at least part of a passage for the object ( 7 ) through the cooling chamber ( 17 , 18 ) and formed by the surface sections ( 110 to 115 ) with higher heat energy concentration associated cooling elements ( 116 to 119 ). 3. Cooling device according to one or more of the preceding claims, characterized in that a plurality of cooling elements ( 116 to 119 ) distributed over the circumference of a continuous contour of the object ( 7 ), the surface sections ( 110 to 115 ) are arranged un directly adjacent. 4. Cooling device according to one or more of the preceding claims, characterized in that the cooling elements ( 116 to 119 ) are formed by lines running in the direction of passage of the object ( 7 ) for the transport of refrigerant ( 130 ). 5. Cooling device according to one or more of the preceding claims, characterized in that the heat extraction device ( 66 , 67 ) or the cooling element ( 116 to 119 ) the object ( 7 ) at a distance between 1.0 mm and 50 mm, preferably between 5 mm and 25 mm, is arranged adjacent. 6. Cooling device according to one or more of the preceding claims, characterized in that the cooling elements ( 116 to 119 ) for the refrigerant ( 130 ) in a likewise in the direction of passage of the object ( 7 ) extending cooling channel ( 156 , 157 ) and / or a channel ( 175 to 178 ) are arranged. 7. Cooling device according to one or more of the preceding claims, characterized in that the cooling channel ( 156 , 157 ) has an at least over part of the length of the cooling elements ( 116 to 119 ) extending outflow channel ( 158 ), which on at least one of the Surface sections ( 110 to 115 ) is aligned with the higher thermal energy concentration. 8. Cooling device according to one or more of the preceding claims, characterized in that the channels ( 175 to 178 ) via connecting channels ( 181 to 184 ) are connected to the flow channel ( 148 ). 9. Cooling device according to one or more of the preceding claims, characterized in that the connecting channels ( 181 to 184 ) are designed as outflow and / or a flow channels and are aligned with at least one of the surface sections ( 110 to 115 ) with the higher thermal energy concentration . 10. Cooling device according to one or more of the preceding claims, characterized in that the cooling channel ( 156 , 157 ) and / or the outflow channel ( 158 ) and / or the channel ( 175 to 178 ) and / or the connecting channel ( 181 to 184 ) is arranged in the insert element ( 146 , 147 ), preferably continuously over its longitudinal extent. 11. Cooling device according to one or more of the preceding claims, characterized in that the cooling channel ( 156 , 157 ) and / or the channel ( 175 to 178 ) via individual, successively arranged nozzle openings in the insert element ( 146 , 147 ) with the flow channel ( 148 ) is connected. 12. Cooling device according to one or more of the preceding claims, characterized in that the insert element ( 146 , 147 ) and / or insulating element ( 136 ) has a low thermal conductivity. 13. Cooling device according to one or more of the preceding claims, characterized in that a flow cross-section or a flow width ( 149 ) of a flow channel ( 148 ) extending at least over part of the surface of the flow contour for the moving object ( 7 ). in at least one of the surface sections ( 110 to 115 ) with a higher thermal energy concentration of the object ( 7 ) is lower than in surface sections ( 120 to 123 ) of the object ( 7 ) with a lower thermal energy concentration. 14. Cooling device according to one or more of the preceding claims, characterized in that the cooling medium ( 58 ) between the cooling element ( 116 to 119 ) and the object ( 7 ) has two different physical states. 15. Cooling device according to one or more of the preceding claims, characterized in that the surface section ( 110 to 115 ) with increased thermal energy concentration in a node area ( 104 to 109 ) of the object ( 7 ), in particular hollow profile, between a jacket ( 96 ) and a web ( 99 to 102 ) arranged in a hollow chamber ( 98 ) is arranged or formed. 16. Cooling device according to one or more of the preceding claims, characterized in that the surface section ( 110 to 115 ) with higher thermal energy concentration based on a cross-sectional area of the object ( 7 ) a larger Ma material portion than in the same cross-sectional areas in other cross-sectional areas of the object ( 7 ). 17. Cooling device according to one or more of the preceding claims, characterized in that a circulating device ( 59 , 60 ) for the cooling medium ( 58 ) for forcibly moving the cooling medium ( 58 ) relative to the walls of the cooling chamber ( 17 , 18 ) Housing ( 37 , 38 ) of the cooling device ( 16 ) is arranged. 18. Cooling device according to one or more of the preceding claims, characterized in that the cooling medium ( 58 ) is liquid and optionally solid. 19. Cooling device according to one or more of the preceding claims, characterized in that the cooling medium ( 58 ) is gaseous. 20. Cooling device according to one or more of the preceding claims, characterized in that at least part of the cooling elements ( 116 to 119 ) is formed by solidified cooling medium ( 58 ). 21. Cooling device according to one or more of the preceding claims, characterized in that the heat extraction device ( 66 , 67 ) is flowed through by a refrigerant ( 130 ) in the liquid and / or gaseous state. 22. Cooling device according to one or more of the preceding claims, characterized in that the refrigerant ( 130 ) has a temperature of less than 15 ° C or 0 ° C, preferably between -15 ° C and -50 ° C. 23. Cooling device according to one or more of the preceding claims, characterized in that the refrigerant ( 130 ) has a temperature of less than 0 ° C, preferably between -60 ° C and -170 ° C. 24. Cooling device according to one or more of the preceding claims, characterized in that a vacuum built up in the interior of the cooling device ( 16 ), starting from the entry area ( 19 ) to the exit area ( 21 ), is designed to increase steadily from area to area. 25. Cooling device according to one or more of the preceding claims, characterized in that the vacuum in the inlet area ( 19 ) is between 0 bar and -0.1 bar and is 0.002 bar to 0.1 bar higher per area and in the outlet area ( 21 ) between -0.1 bar and -0.5 bar, preferably -0.2 bar. 26. A method of cooling an elongated, extruded article, at wel chem the object during its movement in the longitudinal direction one against the Ambient air pressure is exposed to lower pressure and the object is at a ge compared to the initial temperature lower final temperature by surrounding the object the cooling medium is cooled, characterized in that the contained in the object Amount of heat from the surface sections of the object with higher thermal energy concentration is dissipated more quickly than in the other surfaces adjacent to it sections of the subject. 27. The method according to claim 26, characterized in that the ent in the object amount of heat retained in the individual, adjacent surface sections different thermal energy concentration with reference to the ratio of heat storage capacity is evenly dissipated in the various surface sections becomes. 28. The method according to claim 26 or 27, characterized in that the object while moving longitudinally transverse to its direction of movement from cooling medium is washed around.   29. The method according to one or more of claims 26 to 28, characterized records that the direction of washing of the cooling medium while moving in it Longitudinal direction different, in particular opposite, takes place.