Classifications

• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
  • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
  • C21D1/18—Hardening; Quenching with or without subsequent tempering
  • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
  • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
  • C21D1/62—Quenching devices
  • C21D1/673—Quenching devices for die quenching
• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
  • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
  • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
  • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
  • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
  • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
  • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
  • F27D3/00—Charging; Discharging; Manipulation of charge
  • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces

Definitions

• the present invention is based on an annealing device according to the preamble of claim 1.
• Such annealing devices are well known and are commonly used to heat pre-treat metallic workpieces to obtain defined workpiece characteristics.
• the strength of the aluminum workpieces can be temporarily reduced and thus the malleability of the aluminum workpieces can be improved by a previous annealing process.
• the workpiece is usually heated to a certain temperature, then solution-annealed by holding the workpiece to a certain holding temperature and finally cooled.
• Solution annealing serves to produce the desired chemical and physical processes in the workpiece caused by the holding temperature.
• the workpieces are punched, pressed, cut or the like depending on the application in any way.
• Such a heat treatment of aluminum workpieces is known for example from the document DE 199 26 229 C1.
• the workpieces which are subjected to a heat treatment in the annealing apparatus are usually designed as comparatively large-area metal plates, particularly in the area of the automobile sector.
• these metal plates must be maintained at the hold temperature for a predetermined hold time, which hold time depends, among other things, on the alloy composition of the metal plates.
• the metal plates When using large-area metal plates made of high-strength aluminum, the metal plates must be kept at the holding temperature for a comparatively long holding time, whereby at a large number or a large throughput of treated to be treated
• the object of the present invention is to provide an annealing device and a method for annealing metal plates, in which a more efficient holding of the metal plates at a certain temperature with simultaneously significantly reduced space requirements, higher throughput and lower susceptibility to interference is made possible.
• an annealing device for annealing metal plates which has a heating device for heating the metal plates and a compensating device for holding the metal plates at a substantially constant temperature
• the compensating device comprises a stacking and transporting mechanism for stacking the by means of the heating device heated metal plates in the compensating device and for transporting the warmed metal plates along a vertical direction perpendicular to their main extension planes vertical direction through the compensating device.
• the device according to the invention has the advantage over the prior art that the metal plates in the compensating device can be stacked one above the other by the stacking and transport mechanism, so that the space requirement for the compensating device in the surface is significantly reduced.
• the vertical transport of the metal plates through the compensating device ensures a correspondingly long residence time of the metal plates in the compensating device, so that the metal plates are kept at a substantially constant temperature for a predetermined holding time and thus the desired chemical and physical properties caused by the corresponding holding temperature. see events in the metal plates.
• the balancing device comprises a thermally insulated annealing container, in which the metal plates are stacked in the vertical direction by means of the stacking and transport mechanism and through which the metal plates are transported in the vertical direction by means of the stacking and transport mechanism.
• the metal plates preferably comprise an aluminum material.
• the compensation device is a passive compensation device and in particular without an active heater for holding the metal plates is formed at a substantially constant temperature.
• the equalizer is thus a passive device, i. the compensating device has no active heating means and hardly movable mechanical elements in the temperature-stressed area.
• the holding temperature is preferably introduced only by the warmed metal plates or optionally by preheated goods carriers in the annealing vessel.
• the compensating device has an inlet opening for introducing the metal plates warmed up by the heating device into the compensating device and an outlet opening for outputting the metal plates from the compensating device transported by the balancing device by means of the stacking and transporting mechanism; wherein the outlet opening is arranged in particular along the vertical direction on a side of the compensating device opposite the inlet opening.
• the stacking and transport mechanism is designed such that the metal plates are transported through the compensating device substantially antiparallel to the direction of the gravitational field of the earth. This has the advantage that the metal plates are transported essentially parallel to the heat flow in the compensating device.
• Warming device heated metal plates are in this case introduced into the arranged in the lower part of the compensating device inlet opening in the compensating device.
• the heat of these introduced into the compensating device metal plates rises in the balancing device upwards, so that by the movement of the metal plates upward as efficient as possible holding the metal plates at a substantially constant temperature, and the most homogeneous temperature distribution can be achieved in the balancing device.
• the annealing device has a plurality of goods carriers, each goods carrier being respectively provided for receiving a metal plate and wherein preferably the goods carriers are at least temporarily so releasably coupled to the stacking and transport mechanism that the goods carrier stacked directly above each other by the stacking and transport mechanism along the vertical direction and transported by the balancing device.
• the metal plates stacked one above the other in the compensating device do not rest directly on one another but are separated from one another by means of the goods carriers.
• the product carriers thus prevent the adjacent metal plates from sticking together.
• the goods carrier act at least partially as a heat storage.
• the individual goods carriers are preferably stacked directly on top of each other.
• the product carriers are optionally centered in a centering plane parallel to the main extension plane in the compensating device by means of centering rods.
• the centering rods are in particular vertically aligned and are formed konusformig at their lower ends for threading the goods carrier. Furthermore, it is conceivable that the alignment of the product carrier takes place through the walls of the annealing device and / or by means of interlocking centering on the goods carriers.
• the stacking and transport mechanism has at least one lifting element for lifting a lowermost goods carrier located in the compensation device in the vertical direction, wherein the lever element preferably comprises a bolt protruding into the compensation device in a vertical direction.
• the stacking and transport mechanism to have locking elements for fixing a lower goods carrier located in the compensating device and lifted by means of the lifting element, the locking elements preferably projecting laterally into the compensating device parallel to the main extension plane.
• This has the advantage that the lifting element is returned to its original position for receiving a new product. carrier can be reduced without the tray stack lowers again. In this way, a quasi-continuous, ie in particular stepwise transport of the metal plates by the compensating device can be realized.
• the locking element are preferably resiliently biased in the direction of the respective goods carrier.
• the goods carriers to have centering devices for the respective metal plates arranged on the goods carriers, which are preferably arranged on front sides of the goods carriers and which are particularly preferably in the form of inwardly folded tabs of the goods carrier ,
• the centering provide advantageously for a precise placement of the metal plates on the goods carriers, so that a reliable and smooth transport of the metal plates is ensured by the balancing device.
• the metal plates are thus preferably only in the area of support means on the goods carriers, so that the most homogeneous temperature distribution in the interior of the metal plates is not affected by the goods carrier and thus only a small or insignificant distortion of the metal plates.
• the annealing device has a return device for returning the goods carriers from the outlet opening to the inlet opening outside the compensating device.
• the product carriers are preferably returned automatically to the entrance opening and are then ready to receive further coming from the warm-up metal plates.
• the annealing device comprises a cooling device for cooling the metal plates warmed up by means of the heating device and held at a substantially constant temperature by means of the balancing device, the cooling device preferably having a first cooling die and a first cooling die in parallel to the vertical direction movable second cooling die comprises.
• the metal plates will be This in particular quenched and are then ready for further processing, for example in conventional pressing, punching and / or cutting tools.
• the first and second pressed parts preferably lie positively against an upper side and an underside of the metal plates, so that an as uniform as possible quenching of the entire metal plate is achieved and the distortion of the metal plate is thereby reduced.
• the first and second pressing part is preferably designed in each case as a steel plate.
• the first and second cooling punches preferably have line elements for conducting a cooling liquid through the cooling device.
• an efficient cooling of the cooling dies is achieved by the cooling liquid which flows through the conduit element.
• the cooling device comprises a spraying device for spraying a liquid onto the metal plate to be cooled, wherein the spraying device preferably has heatable nozzles, which are fed by means of a pump with liquid from a liquid container.
• the metal plates can be oiled or guarded in this way by the Aufsprühvorraum.
• the cooling device has a cutting device, which preferably comprises cutting blades which adjoin the cooling pistons, wherein the first and second cooling pistons are movable together relative to the cutting blades.
• the metal plates can thus be simultaneously trimmed in the cooling device to a size which is advantageous for the further treatment.
• the metal plates are cooled, cut and oiled in only a single stroke of the cooling dies, so that advantageously a high throughput of metal plates is achieved.
• a further subject of the present invention is a method for annealing metal plates with an annealing device according to one of the preceding claims, wherein in a first method step metal plates are warmed up by means of the heating device and in a second method step the heated metal plates are held on a substantially constant surface by means of the equalizing device Be kept temperature, wherein the metal plates stacked by means of the stacking and transport device in the balancing device over each other and along the vertical direction through the Aus- same device to be transported.
• an efficient heat treatment of the metal plates is achieved with reduced space requirement and high throughput.
• a metal plate is placed on a goods carrier, wherein in a second sub-step of the second process step, the goods carrier is introduced together with the metal plate through an input opening in the compensating device, wherein
• the product carrier is transported together with the metal plate along the vertical direction through the compensating device, wherein a further product carrier is introduced together with a further metal carrier disposed on the other metal plate through the input opening in the balancing device and wherein a third sub-step of the second process step of the goods carrier is issued together with the metal plate through an exit opening, wherein the further goods carrier together with the we iteren metal plate along the vertical direction is transported by the balancing device.
• the metal plates are thus automatically stacked in the balancing device and simultaneously moved continuously through the compensating device.
• the goods carriers are preferably returned in a fourth process step from the exit opening by means of a return device outside the compensating device
• the second method step by means of at least one lifting element only the lowermost located in the compensating device carrier is lifted directly and is fixed by means of locking elements in the raised position until a introduced through the input opening in the balancing device new product carrier is lifted from the at least one lifting element and raises the temporarily fixed in the raised position goods carrier and brings out of engagement with the locking elements.
• a comparatively simple, cost-effective and störunan réelleer stacking and transport mechanism is realized because essentially always only the lowermost goods carrier is raised and thereby successively the entire goods carrier stack moves in the vertical direction through the compensating device.
• the metal plates are cooled by means of a cooling device and preferably sprayed and / or cut.
• FIG. 12 is a schematic cross-sectional view of an equalizer of the annealing apparatus according to the exemplary embodiment of the present invention.
• FIG. FIG. 12 is a schematic sectional view of stacked metal plates and goods carriers in the equalizer of the annealing apparatus according to the exemplary embodiment of the present invention.
• FIG. FIG. 12 is a schematic sectional view and a schematic plan view of a product carrier of the annealing apparatus according to the exemplary embodiment of the present invention.
• FIG. FIG. 12 is a schematic sectional view showing a cooling device of the glow device according to the exemplary embodiment of the present invention.
• FIG. FIG. 12 is a top view of an annealing apparatus and method of annealing metal plates according to another exemplary embodiment of the present invention.
• FIG. 1 is a schematic sectional view of an annealing apparatus 1 and a method of annealing metal plates 2 according to an exemplary embodiment of the present invention.
• the annealing device 1 has a warm-up device 3, in which in a first method step the metal plates 2 are warmed up.
• the metal plates 2 preferably comprise high-strength aluminum metal plates for motor vehicle production, in particular for the production of vehicle bodies.
• the warm-up device 3 is sequentially transported by the warm-up device 3.
• the warm-up device 3 is sequentially transported by the warm-up device 3.
• the metal plates 2 preferably comprises a coil into which the metal plates are pushed individually or stacked and removed again. As a result, a so-called longitudinal field heating is performed.
• an oven with two induction coils 3 ' is conceivable, wherein one of the induction coils 3' is arranged below the other and the other of the induction coils 3 'above the metal plate 2.
• the induction coils 3 ' generate an electromagnetic alternating field, by means of which induction currents are induced in the metal plate 2 which is respectively arranged between the induction coils 3' and heat the metal plate 2.
• the use of other electrical or fuel-based heating methods for heating the metal plates 2 in the warm-up device 3 is conceivable.
• the metal plates 2 are preferably heated in the heating device 3 to a temperature of at least 350 ° Celsius.
• the heated metal plates 2 are subsequently transported to a compensating device 4, for example by means of a first robot 30 (see FIG. 6).
• the compensating device 4 is provided for keeping the metal plates 2 at a substantially constant holding temperature for a specific holding time (also referred to as solution annealing) in a second method step in order to obtain the desired chemical and physical processes in the metal plates 2 caused by the holding temperature - testify.
• the metal plates 2 are stacked on top of one another in the compensating device 4 by means of a stacking and transport mechanism 5 of the compensating device 4 and are transported essentially stepwise through the compensating device 4.
• An exemplary embodiment of the stacking and transport mechanism 5 will be explained later with reference to FIG 3.
• the compensating device 4 comprises a heat-insulated annealing vessel 4 'having an inlet opening 6 for introducing the metal plates 2 warmed up by means of the heating device 3 in the compensating device 4 and an output port 7 for outputting the metal plates 2 held by the compensating device 4 at a substantially constant temperature from the compensating device 4.
• the input opening 6 is arranged on an opposite side of the output opening 7 along a vertical direction 101, wherein the vertical direction 101 is aligned substantially anti-parallel to a gravitational field of the earth.
• the entrance port 6 is disposed in a lower portion of the annealing vessel 4 'while the exit port 7 is disposed in an upper portion of the annealing vessel 4', so that the metal plates 2 on the way from the entrance port 6 to the exit port 7 by means of Stacking and transport mechanism 5 in the vertical direction 101 and thus transported perpendicular to the main extension planes 100 of the individual metal plates 2.
• the compensating device 4 further has an inlet flap 31 for closing and opening the inlet opening 6 and an outlet flap 32 for closing and opening the outlet opening 7.
• the input flap 31 and the outlet flap 32 are preferably each controlled in such a way that they respectively open or close sequentially one after the other. In other words, at no time are both the inlet flap 31, and the outlet flap 32 open, so that the heat loss in the annealing vessel 4 'through the input and output ports 6, 7 is kept as low as possible.
• the metal plates 2, which have been solution-annealed by means of the compensating device 4, are then transported, for example by means of a second robot 33 (see FIG. 6), to a cooling device 12 of the annealing device 1.
• the cooling device 12 comprises a first cooling plunger 14 and a second cooling plunger 15 movable relative to the first cooling plunger 14 parallel to the vertical direction 101.
• the first and second cooling plugs 14, 15 each have duct elements 17 through which a cooling fluid for cooling the first and second cooling plugs 17 Cooling stamp 14, 15 is promoted.
• a metal plate 2 is moved between the first and second cooling dies 14, 15, and then the second cooling die 15 is moved by means of hydraulic cylinders 34 against the first cooling die 14.
• the first cooling plunger 14 comes into abutment flatly with an upper side of the metal plate 2
• the second cooling plunger 14 comes into abutment flatly with an underside of the metal plate 2, so that the metal plate 2 is uniformly cooled or quenched from both sides.
• the metal plates 2 are preferably promptly for further processing, for example in not darges- shared conventional pressing, punching and / or cutting tools, further transported.
• the cooling device 12 simultaneously comprises a forming device for the respective metal plates 2, wherein the first and second cooling dies 14, 15 then act simultaneously as a press die, which in addition to the cooling and optional oiling for pressing and forming the metal plates 2 is provided. It is conceivable that a desired high ultimate strength of the machined metal plates 2 is achieved by a bake-hardening effect in later painting steps, Figure 2 shows a schematic sectional view of a compensating device 4 of the glow device 1 according to the exemplary embodiment of the present invention 4 has in the present example a plurality of reusable goods carriers 8 for receiving the metal plates 2.
• Each of the metal plates 2 coming from the warming device 3 is first arranged on its own goods carrier 8 and together with the goods carrier 8 through the input opening 6 into the annealing vessel
• the goods carrier 8 is coupled within the annealing container 4 'to the stacking and transport mechanism 5 and transported against the gravitational field in the vertical direction 101.
• the product carrier 8 is attached together with the goods carrier 8 rdneten metal plate 2 through the output port 7 from the annealing vessel 4 'output.
• the metal plate 2 is now lifted off the goods carrier 8 and transported further in the direction of the cooling device 12.
• the product carrier 8 is returned in a fourth process step for its reuse by means of a return device 11, for example by means of a third robot 40 (see FIG.
• FIG. 3 shows a schematic sectional view of a stacking and transport mechanism 5 of the balancing device 4 of the glow device 1 according to the exemplary embodiment of the present invention.
• the stacking and transport mechanism 5 includes, for example, lateral locking elements 51, which are displaceably mounted along the main plane 100 between a locking position and a release position.
• the stacking and transport mechanism 5 Lifting elements 50 which project in the form of vertical bolts from below into the annealing vessel 4 'and are parallel and anti-parallel to the vertical direction 101 slidably.
• the lifting elements 50 are moved from their retracted starting position in the vertical direction 101 by at least one product carrier height, so that the lowermost goods carrier 8 is lifted directly by the lifting elements 50 by at least the product carrier height.
• all other goods carriers 8 stacked on the lowermost goods carrier 8 are indirectly raised in the vertical direction 101 as well.
• the goods carrier 8 are laterally centered by vertically extending centering rods 53, which are provided at its lower end with a cone for threading the goods carrier 8.
• the lowermost raised goods carrier 8 is now engaged and held in its lateral end regions 36 by the lateral locking elements 51, so that the lever elements 50 can be moved back into their retracted initial position counter to the vertical direction 101 without the goods carrier stack sinking again ,
• the lateral locking elements 51 are thereby moved from the release position, in which goods carrier 8 between the locking elements 51 in the vertical direction 101, in the locking position, in which the raised bottom shelf 8 of the locking elements 51 at least with respect to a movement against the vertical direction 101 is fixed.
• the locking elements 51 are resiliently biased into the locking position and are automatically transferred by appropriate guide obliquely 52 when booting a goods carrier 8 by means of lifting elements 50 and only briefly in the release position and automatically return to the locking position.
• the locking elements 51 are preferably biased toward each other along one direction. If the lifting elements 50 are again in their initial position, a new preheated and equipped with a metal plate 2 goods carrier 8 can be inserted laterally through the inlet opening 6 in the annealing vessel 4 '. In a subsequent step, this new article carrier 8 is now lifted by means of the lifting elements 50 again and engaged by the locking elements 51, while the previous goods carrier 8 is thereby transported in the vertical direction 101 and thereby 51 arrives out of engagement with the Verriegelungselemen-. It is conceivable that in each cycle, the uppermost in the annealing vessel 4 'located goods carrier 8 (not shown) by a lateral ejector slide laterally out of the annealing vessel 4' through the output port 7.
• the ejection slide is actuated in each case during the downward movement or temporally before the lifting movement of the lifting elements 50.
• the stack height in the annealing vessel 4 ' preferably depends on the respective holding and / or cycle time.
• a detailed view of the product carriers 8 is shown in FIG. 4 shows a schematic sectional view, as well as a schematic plan view of a goods carrier 8 of the glow device 1 according to the exemplary embodiment of the present invention.
• the product carrier 8 is produced by way of example from a embossing plate. In the sectional view, it can be seen that the metal plate 2 rests loosely on support devices 10 of the goods carrier 2. These support means 10 are formed by introduced into the embossing plate beads.
• the edges of the embossing plate are partially bent in the form of tabs inwards and thus form centering devices 9, through which the metal plate 2 is centered on the goods carrier 2 and secured against displacement parallel to the main extension plane 100 by means of positive locking.
• the metal plate 2 is shown transparent for reasons of clarity.
• the bead image, the sheet thickness and the flat material of the goods carrier 8 are adapted to the required requirements, such as inherent rigidity, contact surface, heat capacity, weight and the like.
• the goods carriers 8 are further preferably formed as flat as possible in order to achieve a low stack height, so that possible lent many metal plates 2 in the annealing vessel 4 'are stackable.
• the goods carriers 8 are preferably coated in order to prevent adhesion of the metal plates 2 to the respective goods carrier 8.
• the goods carriers 8 are optionally provided with recesses 36. It is conceivable that the product carrier 8 is designed such that it can be heated inductively and / or has a comparatively high heat capacity. In this way, the product carrier 8 can be preheated and / or act as a heat storage.
• FIG. 5 shows a schematic sectional view of a cooling device 12 of the glow device 1 according to the exemplary embodiment of the present invention.
• the cooling device 12 comprises the first and second cooling punches 14, 15 already described with reference to FIG. 1.
• the cooling device 12 illustrated in FIG. 5 additionally has an optional cutting device 21, by means of which the metal plate 2 is simultaneously cut in the third method step.
• the cutting device 21 comprises on the cooling dies 14, 15 adjacent non-movable cutting blades, which are stationary relative to the two moving cooling dies 14, 15.
• both cooling plungers 14, 15 move together in antiparallel to the vertical direction 101 between the two non-moving cutting blade so that those portions of the metal plate 2 which protrude laterally beyond the first and second cooling dies 14, 15 are separated from the cutting blades.
• the cutting device 21 optionally has upper cutting blades 41, which together with the first cooling die 15 moves in the direction of the cutting blade and thus ensure a clean cut.
• the cutting device 21 further comprises scrapers 37, which are spring-mounted and serve to strip the cut-off areas of the remaining metal plate 2.
• the second cooling plunger 15 is preferably resiliently mounted in the vertical direction 101 via compression springs 38 such that the second cooling plunger 15 is pressed by the first cooling plunger 14 in the vertical direction 101 under the cutting edge of the cutting blade during the cutting process.
• the cooling device 12 further comprises a spraying device 18 for spraying liquid onto the metal plate 2.
• the Aufsprühvoriques 18 preferably has a plurality of heatable nozzles 19, which are at least partially integrated into the first cooling die 14.
• the nozzles 19 are fed via a supply line 39 with liquid from a liquid container 20, preferably an oil and / or wax container, from which the liquid is conveyed by means of a feed pump, not shown, to the nozzles 19.
• the Aufsprühvortechnisch 18 is preferably used for oiling and / or growth of the metal plate 2 during the third process step, in particular after the cutting process.
• the cooling, cutting and oiling of the metal plate 2 preferably takes place in a single lifting operation of the cooling device 12.
• FIG. 6 shows a schematic plan view of an annealing device 1 and a method for annealing metal plates 2 according to a further exemplary embodiment of the present invention.
• the described various workstations are shown again clearly in FIG.
• the metal plates 2 are warmed up in the warm-up device 3.
• the first robot 30 on a goods carrier 8 and transferred together with the goods carrier 8 in the balancing device 4.
• the goods carrier 8 is guided together with the metal plate 2 in the vertical direction through a passive annealing vessel 4 'and then output from the compensating device 4 again.
• a second robot 33 lifts the metal plate 2 from the goods carrier 8 and transfers the metal plate 2 into the cooling device 12, in which the metal plate 2 is cooled and optionally cut and / or oiled. Subsequently, the metal plate 2 is promptly transported to a further processing station 42, for example, a conventional pressing, punching and / or cutting tool station. In the meantime, the goods carrier 8 is returned between the warm-up device 3 and the compensation device 4 by a return device 11 designed in the form of a third robot 40. LIST OF REFERENCE NUMBERS

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• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
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• General Engineering & Computer Science (AREA)
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• 2011
  • 2011-05-26 DE DE102011103269A patent/DE102011103269A1/de not_active Ceased
• 2012
  • 2012-05-22 WO PCT/EP2012/002165 patent/WO2012159733A1/de active Application Filing
  • 2012-05-22 EP EP12727288.8A patent/EP2714945B1/de not_active Not-in-force

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