EP3969198A1 - Sprühkopf zur kühlschmierung eines gesenks einer umformmaschine - Google Patents
Sprühkopf zur kühlschmierung eines gesenks einer umformmaschineInfo
- Publication number
- EP3969198A1 EP3969198A1 EP20727946.4A EP20727946A EP3969198A1 EP 3969198 A1 EP3969198 A1 EP 3969198A1 EP 20727946 A EP20727946 A EP 20727946A EP 3969198 A1 EP3969198 A1 EP 3969198A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- die
- spray head
- upper die
- lower die
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J3/00—Lubricating during forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0088—Lubricating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
Definitions
- Spray head for cooling a die of a forming machine
- the present invention relates to a spray head for cooling lubrication of a lower die and / or an upper die of a forming machine, a cooling device with such a spray head, a forming machine with such a cooling device and a forming method.
- a spray head for cooling lubrication of at least one die of a forming machine having a lower die and an upper die is known in the form of a closed-die forging press, which is introduced between two working strokes into a work space between the lower and upper die and carries at least one two-fluid nozzle, which atomizes a mixture of spray agent and spray air onto the die for cooling lubrication and is connected to at least one feed channel via which a control fluid, the mixture, spray agent or spray air can be fed to the two-substance nozzle and which extends as far as a spray head base that carries a supply connection, which is connected to the feed channel.
- the at least one two-fluid nozzle of the known spray head has an integrally formed nozzle body
- a device for cooling lubrication of at least one die of a forming machine which consists of several individual tools in the form of engravings or shapes.
- spray nozzles can be inserted into the individual tools.
- Several spray nozzles, which are part of a coolant supply, are provided for each individual tool of the known forming machine.
- a control valve is assigned to each spray nozzle in the coolant supply and the control valves are connected to a computer setting device via a control line.
- a thermal imaging camera is arranged laterally outside the area in which the individual tools are moved towards one another.
- the thermal imaging camera records an actual value thermal image of the side or surface of the tool that can be viewed by it, which image includes every point on this side or surface of the tool. Selected points in the device are evaluated as measuring points to which the spray nozzles are assigned. With the spray nozzles the Individual tools are cooled directly or indirectly at the measuring points. When the individual tools have been cooled, the coolant supply is moved away from the working area of the individual tools and another working stroke of the forming machine takes place, during which warm workpieces are inserted into the tool and formed in the tool.
- the present invention is consequently based on the object of specifying a device and a method with which a more targeted cooling of the thermally most stressed areas of the molds is made possible.
- a spray head is proposed for cooling a lower die and / or an upper die of a forming machine.
- the spray head can be introduced between two working strokes into a work space between the lower die and the upper die and has at least two individually controllable nozzles for cooling lubrication of different points on a die surface of the lower die and / or the upper die.
- the spray head can also have a significantly higher number of individually controllable nozzles. The larger the number of nozzles selected, the smaller the surface of the lower die or upper die that is cooled by the respective nozzle can be selected. This can make it possible to cool different points of the respective die differently.
- the proposed spray head is characterized in that it has a thermal imaging camera for recording a thermal image of the lower die and / or the upper die.
- the arrangement of the thermal imaging camera on the spray head facilitates the recording of the thermal image of the lower die and / or the upper die compared to a lateral arrangement of the thermal imaging camera next to the forming machine.
- This arrangement can also allow the thermal image during the introduction of the spray head. A waiting time for recording the thermal image before the spray head is introduced can thus be avoided. It is also conceivable to continuously record thermal images of the die while the spray head is being introduced. In this way, if necessary, a change in local surface temperatures of the die over time can also be determined.
- the individually controllable nozzles are designed as a one-piece assembly.
- the individually controllable nozzles and supply channels, via which a cooling fluid or a cooling fluid mixture can be supplied to the nozzles can be designed as a one-piece assembly. In this way, leaks at connection points can be avoided.
- the individually controllable nozzles, feed channels, via which a cooling fluid or a cooling fluid mixture can be fed to the nozzles, and a receptacle for the thermal imaging camera can be designed as a one-piece assembly. This means that the position of the thermal imaging camera in relation to the nozzles for cooling lubrication can already be predefined when the spray head is manufactured.
- the proposed one-piece assembly can in particular be produced by means of 3D printing.
- 3D printing to manufacture the assembly can lead to a lighter spray head which, due to its lower mass, can be inserted into and out of the work space more easily and quickly.
- 3D printing makes it easier to adapt the spray head to changing geometries of the lower and / or upper die.
- a cooling device which, in addition to a spray head described above, has a control unit for determining individual spray times of the individually controllable nozzles as a function of the thermal image.
- the spray times can in particular be chosen so that the surface temperature is as uniform as possible after the spraying process. For example, very hot areas of the lower and / or upper die can be cooled more than other areas. A surface temperature that is as uniform as possible can have a positive effect on the service life of the lower and upper dies. The total spray consumption can also be reduced due to the more needs-based, individual spraying times.
- the control unit of the cooling device can furthermore have a memory for storing the thermal image. This can enable continuous monitoring of the forming process over several clock cycles so that errors can be identified before the lower and / or upper die can no longer be used. It is also conceivable to improve the die geometry based on the continuously collected thermal images.
- a forming machine with a cooling device as described above with a lower die and with an upper die can enable shorter cycle times compared to conventional forming machines.
- the lower and / or upper die can be used longer and downtimes of the forming machine can be shortened.
- a forming process is also proposed in which a workpiece is pressed cyclically between the lower die and the upper die, the workpiece is ejected from the forming machine, a spray head with at least two individually controllable nozzles for cooling lubrication of different points on a die surface of the lower die and / or the upper die and with a thermal imaging camera for recording a thermal image of the lower die and / or the upper die is introduced into the working space between the lower die and the upper die, a thermal image of the lower die and / or the upper die is recorded, based on the thermal image, individual spraying times of the individually controllable nozzles are determined , with the spray nozzles for the individually determined spraying times, places on the die surface of the lower die and / or the upper die are lubricated with cool and a next workpiece is loaded into the forming machine.
- the individual spray times can in particular be determined based on maximum values of the thermal image in such a way that a uniform surface temperature of the lower die and / or upper die is obtained after the cooling lubrication.
- FIG. 1 shows a forming machine with a lower die UG and an upper die OG between which a workpiece can be pressed.
- a spray head SK has moved into the open work space AR of the forming machine UM.
- the spray head has several nozzles DU for cooling the surface of the lower die UG and several nozzles DO for cooling the upper die OG.
- the nozzles UG and OG can each be controlled individually.
- the spray head SK also has two thermal imaging cameras KU and KO, with which thermal images of the surface of the lower die UG and the upper die OG can be recorded.
- the individually controllable nozzles DU and DO, feed channels (not shown), via which a cooling fluid or a cooling fluid mixture can be fed to the nozzles, and the mounts for the thermal imaging cameras (KU, KO) are integral Assembly formed.
- the one-piece assembly was produced using a 3D printing process.
- the cooling device has a control unit KE with which, based on the individual spray times for the individually controllable nozzles DU and DO by means of the thermal imaging camera KU and the thermal imaging camera KO, can be determined. In this way, particularly hot points of the lower die and / or the upper die can be cooled for longer than points that are less thermally stressed and thus the service life of the dies can be extended.
- the control unit can also have a memory in which the thermal images and / or the calculated spray times can be stored over several working cycles of the forming machine. This can make it possible to detect deviations at an early stage and reduce downtimes of the forming machine.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019207163.5A DE102019207163A1 (de) | 2019-05-16 | 2019-05-16 | Sprühkopf zur Kühlschmierung eines Gesenks einer Umformmaschine |
| PCT/EP2020/063698 WO2020229682A1 (de) | 2019-05-16 | 2020-05-15 | Sprühkopf zur kühlschmierung eines gesenks einer umformmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3969198A1 true EP3969198A1 (de) | 2022-03-23 |
| EP3969198B1 EP3969198B1 (de) | 2023-01-04 |
Family
ID=70847336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20727946.4A Active EP3969198B1 (de) | 2019-05-16 | 2020-05-15 | Kühlvorrichtung mit einem sprühkopf zur kühlschmierung eines gesenks einer umformmaschine und umformverfahren |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12157132B2 (de) |
| EP (1) | EP3969198B1 (de) |
| JP (1) | JP2022533131A (de) |
| DE (1) | DE102019207163A1 (de) |
| WO (1) | WO2020229682A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4202917C1 (de) * | 1992-02-01 | 1993-08-12 | Kleinewefers Gmbh, 4150 Krefeld, De | |
| JPH081302A (ja) * | 1994-06-10 | 1996-01-09 | Toyota Motor Corp | 金型検査装置 |
| DE19511272A1 (de) * | 1995-03-27 | 1996-10-02 | Acheson Ind Deutschland Zweign | Zweistoff-Sprühdüse, insbesondere für ein Sprühelement eines Sprühwerkzeugs einer Formsprüheinrichtung, und Düsenwechselanordnung für Zweistoff-Sprühdüsen |
| DE19648708C2 (de) * | 1996-11-25 | 2003-01-09 | Langenstein & Schemann Gmbh | Gesteuerte Kühlung eines Warmumform-Werkzeugs |
| DE19810032A1 (de) * | 1998-03-09 | 1999-09-16 | Acheson Ind Inc | Verfahren und Vorrichtung zum Vorbereiten der Formwandungen einer Form zur Urformung bzw. Umformung auf den nächstfolgenden Formungszyklus, Sprühelement mit Zentrifugalzerstäubung und Luftführung und Verwendung eines derartigen Sprühelements zum Versprühen im wesentlichen lösungsmittelfreien Formwandbehandlungsmittels |
| JP3291240B2 (ja) * | 1998-03-17 | 2002-06-10 | 株式会社栗本鐵工所 | 摺動部の異常温度検出装置 |
| JP2006250714A (ja) * | 2005-03-10 | 2006-09-21 | Jfe Techno Research Corp | プレス成形後の成形体のネッキング検出方法及び装置 |
| JP2007222890A (ja) | 2006-02-22 | 2007-09-06 | Aisin Seiki Co Ltd | 金型の温度制御方法及び金型の温度制御装置 |
| JP4946522B2 (ja) * | 2006-03-07 | 2012-06-06 | 日産自動車株式会社 | 離型剤塗布方法および離型剤塗布装置 |
| JP5244835B2 (ja) * | 2010-02-25 | 2013-07-24 | 京セラドキュメントソリューションズ株式会社 | 現像装置及び画像形成装置 |
| DE102010011762A1 (de) | 2010-03-17 | 2011-09-22 | Benteler Automobiltechnik Gmbh | Verfahren zur Kontrolle mechanischer Bauteileigenschaften thermomechanisch umgeformter Blechbauteile |
| DE102010014952A1 (de) * | 2010-04-14 | 2011-10-20 | Thyssenkrupp Gerlach Gmbh | Sprühelement und Sprühvorrichtung |
| JP5895672B2 (ja) | 2012-04-03 | 2016-03-30 | マツダ株式会社 | 金型温度監視装置及びその監視方法 |
| JP2015150617A (ja) * | 2014-02-19 | 2015-08-24 | リョーエイ株式会社 | 金型スプレー方法及び金型スプレーシステム |
| DE102015114202A1 (de) | 2015-07-17 | 2017-01-19 | Sms Group Gmbh | Sprühkopf zur Kühlschmierung mindestens eines Gesenks einer Umformmaschine sowie Verfahren zur Herstellung eines derartigen Sprühkopfs |
| JP6604795B2 (ja) * | 2015-09-25 | 2019-11-13 | 株式会社Subaru | 離型剤塗布装置 |
| US10343211B2 (en) * | 2016-08-25 | 2019-07-09 | Honda Motor Co., Ltd. | Thermal camera system for die-cast machine |
| DE102017100438B4 (de) * | 2017-01-11 | 2024-12-12 | Sms Group Gmbh | Zweistoffdüse, Sprühkopf sowie Verfahren zum Zerstäuben eines Gemisches aus Sprühmittel und Sprühluft mittels einer Zweistoffdüse |
| DE102018220412A1 (de) * | 2017-12-06 | 2019-06-06 | Robert Bosch Gmbh | Medienauftragsvorrichtung |
-
2019
- 2019-05-16 DE DE102019207163.5A patent/DE102019207163A1/de not_active Withdrawn
-
2020
- 2020-05-15 JP JP2021568234A patent/JP2022533131A/ja active Pending
- 2020-05-15 US US17/611,714 patent/US12157132B2/en active Active
- 2020-05-15 EP EP20727946.4A patent/EP3969198B1/de active Active
- 2020-05-15 WO PCT/EP2020/063698 patent/WO2020229682A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019207163A1 (de) | 2020-11-19 |
| EP3969198B1 (de) | 2023-01-04 |
| WO2020229682A1 (de) | 2020-11-19 |
| US12157132B2 (en) | 2024-12-03 |
| US20240024905A1 (en) | 2024-01-25 |
| JP2022533131A (ja) | 2022-07-21 |
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